Reflective Letter Essay Example | Topics and Well Written Essays - 250 words

Reflective Letter - Essay Example s learned, the following three (3) choices in designing my writing portfolio were chosen and revised copies are hereby appropriately attached: (1) profile essay; (2) position essay; and (3) proposal essay; which all delves on the same topic/issue: â€Å"The rising role of women in drug trafficking†. The profile essay initially presented a profile draft about Griselda Blanco’s â€Å"The Godmother† of Drug Trafficking. From the comments and reviews that were provided, I changed the structure from what previously appeared as a biography, to more of a profile, which was specifically required. Likewise, some parts were revised to present narrative discourse, rather than providing chronological and bibliographic details to adhere to the story format. In the position essay that focused on the CIA (Central Intelligence Agency) being part of the drug trade, there was a need to provide an overview of the CIA prior to delving into the case. As noted, I make some re-organization of identified paragraphs for effective consistency. Likewise, the proposal essay about â€Å"The Rising Role of Women in Drug Trafficking† has apparently led to ‘femicide’ in areas where drug trafficking was deemed prevalent, discussed why it was an alarming situation and what policy options could be implemented to curb this rising menace. On my first draft, the problem and significance of the study were discussed extensively but I failed to provide required details in the solution portion. Therefore, during the revision, greater details on the solution to decrease femicide were duly presented. Further, one’s ideas and paragraphs were appropriately

The programme you are discussing Essay Example for Free

The programme you are discussing Essay When it comes to props for individual characters, the most identifiable would be that of Pat Butchers huge earrings, which seem to get bigger and more wild as the years go on but strangely enough, you do see people turned out like this in the Eastend and though you wonder why, it is a code which should be included because its realistic and is a great example of key observation by the Eastenders research team. They also cleverly use simple items such as fruit machines, dartboards and the statue of Queen Victorias Head in the pub itself to bring together all aspects of the traditional East-end local. The set itself is based at Elstree studios in Hertfordshire and is filmed on a real street used as the set. A lot of research has obviously gone into creating the right location, as everything seems very realistic, even minor aspects such as the Arthur Fowler memorial bench in the middle of the street, the high steps leading up to the houses, the local pub with the market outside, the fish and chip shop and the underground train station; it all fits together nicely to connote a typical London area. There are also extra details with things like graffiti and fly-posters on the walls. Along with the stereotypes of the cast, it all works successfully and again has obviously come from very observant, detailed work. It would be practically impossible to put these codes and conventions into another medium with similar affect. Take the original medium form of Soap; radio, for example. The whole structure of Eastenders would have to be adapted to work with sound only and it couldnt possibly be considered as the same entertaining show. As I have just discussed; a good majority of Eastenders success comes from the great detail and accuracy used in the mise-en-scene, which is what can actually be seen in each shot, therefore this could not easily be transferred to a medium such as radio. Radio uses only sound and relies on the audiences imagination for image creation, therefore the minor aspects such as graffiti, fly-posters on the wall and Pat Butchers character-identifying earrings cant be constantly described without boring the audience. If Eastenders was originally created for radio only, the team would have a completely different approach and would rely only on street-like, rural sound effects to create the London scene, they would hope the audience imagines aspects like graffiti but in some cases they wont. As a radio show, they would have to emphasise and rely more on storylines rather than setting, props and costume, therefore with their current entertainment methods Eastenders would not be a successful radio show, however, if it was greatly adapted, it could work but would seem like a different show completely. As far as Im aware, soap has never been attempted at the medium level of a theatre, stage production. Again, I feel this would need great adaptation and this would most likely take it out of the Soap Opera category. A Soap Opera traditionally updates every week in different episodes with storylines being introduced, finished or continued. Though, Im not aware of a rule stating that this must be the case for it to be classed as a Soap Opera but then the current and original shows themselves set the rules and boundaries. I suppose a Soap Opera could be attempted to fit all in one solid show, this would traditionally be the case if it was to be done in a theatre production but it would be a very intense production and probably would be unsuccessful at what its trying to achieve. If the team intended for viewers to return every week to see the next part of the story it may make it just inside of the Soap Opera category but this still would not be successful as it would limit the amount of viewers to a minimal amount, which seems pointless and would not be successful for anyone. If cameras were to be used in the theatre itself allowing it to also be broadcast, that would make a little more sense, so people can decide if they want to try and watch it at the theatre itself or on their television at home. Though this would also limit the forms of codes and conventions that can be used and would have to be performed live and we all know we dont appreciate Soap Operas for their acting qualities. With little use of locations in a theatre, it wont have any appeal! If Eastenders was to be attempted in this medium, it would be interesting to see how it turns out. Though, again I feel it may as well be given a different title because it wouldnt be able to work with the successful methods it uses on our television screens today. Robert J Thompson of the Museum of Television and Radio suggests They are worlds without end stating the fact that Soap Opera cannot work in theatre because theatre productions all have to end at some point, simple as that. Eastenders is generally suited to television because Soap Operas of this calibre are designed to run alongside our lifestyles for us to relate to everyday. Its influential codes and conventions are for the pleasure and interest of the human eye. Therefore, it can only work on a television medium. It could be argued that Eastenders in a film medium would allow use of the same techniques but this would again be kept within a maximum time limit of about three to four hours, therefore in my view, cannot be considered a Soap Opera. In her 2003 book Soap Opera, Dorothy Hobson suggests that Eastenders cannot work to its full individual potential by any other existing medium than television from the fact that it shows a Cultural London. She states that other media forms would only show a Metropolitan view, as Cultural media productions are best suited for television. Eastenders embraces the modern version of the East End and has shown to be multicultural by consistently including a wide range of Asian and black, first and second generation Londoners. Eastenders has integrated good and bad characters, as representations of many cultures, creeds and colours. Another view is that of Ron Simon from the Museum of Television and Radio who claims that television makes Eastenders easier for people to relate to, as they can sometimes see parts of their own lifestyles around the characters on screen, viewing things they have experienced themselves. On the radio they are never sure exactly what the image is supposed to be, Eastenders is directed at that basis of human relation. I believe that the majority of the codes used in Eastenders cannot be transferred to the viewer by any other medium as successfully as television proves to do so today. When a new medium overcomes television in this field, a whole new Soap Opera era will begin. Bibliography Soap Opera by Dorothy Hobson (Polity Publishers) www. mtr. org (Museum of Television and Radio) Eastenders Real Soap by Karen Sinotok (Generation Publications) Eastenders Whos Who by Kate Lock (BBC Publications) (NOT USED) Brookside Real Soap by Kay Nicholls (Generation Publications) (NOT USED) Reading Television by John Fiske (Routledge) (NOT USED)

American Democracy :: essays research papers

Ravi Purohit-PUB 1250 2/16/05 The paper in which I chose to write about is American Democracy. When the thirteen British colonies in North America declared their independence in 1776, they laid down that â€Å"governments are instituted among Men, deriving their just powers from the consent of the governed.† This meant that they wanted a government for the people, run by the people. This is one of the basic ideals upon which our nation was founded. The â€Å"colonies† needed to have a written constitution to define and therefore more specifically limit government powers. After the Articles of Confederation failed to work in the 13 colonies, the U.S. Constitution was created in 1787. One ideal found in the Preamble of the Constitution is the ideal that majority rules. In our government, the Congress uses majority rules to pass bills, through Congress and the President. As there are so many checks and balances, sometimes they don’t even make it as bill. This is one of the ideals found in the Constitution. This separation of powers, within the three co-ordinate branches, the legislative, executive, and judiciary branch has no supremacy over the others. This was designed to prevent any branch, from infringing individual liberties safeguarded by the Constitution. Our constitutional rights are very important. Without these rights, the United States would not be any different from other places of the world that do not have as many rights. Our rights secure our liberties and ensure justice for all. I believe the Constitution was such a great document necessary for achieving American Democracy. This document was very concise in its expressed powers. In the words of James Madison, â€Å"If men were angels, no government would be necessary.† This was from Federalist #51 and states the only way government wouldn’t be needed is if we all were perfect angels and we wouldn’t need rules. The Declaration of Independence means to me that all men and women join freely together to make an equal government for the U.S. This is basically said in the preamble by a famous quote: "All men are created equal." The ideal of our government have remained true over 225 years. The U.S. grants its citizens with the rights such as freedom of speech and freedom of religion, etc, which separates us from other countries. I think that all countries should be able to decide what government they want to have until they harm the United States of America in any way.

Essay --

Introduction Although tempting, rapid weight loss that's not monitored by a doctor can have serious consequences. In addition to dehydration, nutritional deficiencies, heart problems, and developing gallstones and overtraining syndrome, the drastic measures required to lose weight fast are hard to maintain. MayoClinic.com states that fast weight loss is often gained back quick, and tends to be water weight and muscle tissue, not fat. They recommend losing no more than 2 pounds a week. (See References 1, 2 and 3) How Much, How Fast Fast weight loss at the expert-recommended rate of 2 pounds a week, requires that you accumulate a daily deficit of 1,000 calories. After one week, this adds up to 7,000 calories, and since there are 3,500 calories in 1 pound of fat, you will lose 2 pounds. This means that you can lose 10 to 15 pounds in about 5 to 7 weeks, give or take a few days. Gradual weight loss at a rate of 2 pounds a week gives you time to get used to the lifestyle changes you're making, which should pertain to diet and exercise. (See References 1) Effective Dietary Changes Reducing...

Advantages and Disadvantages of Eating at Fast-Food Restaurants Essay

Life is moving at a very fast pace in today’s world. Everyone is striving hard to compete with others and get to the top because of which a rat-race is going on all the time. Adults are busy with their careers and children with their academics because of which people rarely have time for one’s self let alone others. In spite of all this busy schedule, everyone still need to consume food in order to survive and since people don’t have time to cook so they just grab a quick lunch or dinner from fast-food restaurants which are now almost everywhere in town. Cause). It does not take long to make fast food and it is quick and hassle free to eat as the name suggests ‘fast food’, hence we can see that because of these factors the consumption of fast food is on the rise in today’s fast-paced world. If one is hungry and in a hurry, one can quickly grab a burger or a pizza and can eat it easily unlike the desi foods for which one need to be properly seated on a table to accommodate for its side-lines and so that the gravy doesn’t spill. Fast food like pizza and burger are delicious, kids love them, the adults find them the most appropriate kind of food when they are running on a tight schedule, all in all fast food does seem as the best food option available, but sadly it is not. Fast food may be considered very delicious and hassle-free but it comes with its own negative effects. Fast food is known to be the unhealthiest kind of food as it leads to many health related problems like obesity, diabetics and other heart related problems. The growing problem of obesity of kids and adults in the west is due to fast food only, as because of their tight schedule people there mostly consume fast foods because of which they fall prey to such health related problems. As fast food is usually very oily with a lot of cheese and when these things are consumed on a daily basis it deteriorates the health of a person. Hence, it is best for us if we consume fast food just to a certain limit instead of all the time, as everything has its own disadvantages in addition to its advantages.

Portmanteau Words

Portmanteau Words Portmanteau Words Portmanteau Words By Simon Kewin The English language is constantly evolving. The meanings of words drift or even change completely. Sometimes words stop being used altogether and they die out. But at the same time new words are constantly being added.   These new words – neologisms – can be a source of some irritation to traditionalists, especially when there is already a perfectly good word that could have been used. But when neologisms work, when they fulfill a need, they can add greatly to the richness and diversity of the language.   A particular sort of new word are those formed when two existing words are merged to form a new one whose meaning, combines that of the two root words. These are called â€Å"portmanteau† words.   The word â€Å"portmanteau† originally meant a sort of large traveling bag. The writer Lewis Carroll, author of Alice’s Adventures in Wonderland etc., was the first to use it to refer to a merged word. Carroll employed quite a few portmanteaux himself. The poem Jabberwocky, for example, contains the word â€Å"chortled†, probably created by combining â€Å"chuckle† and â€Å"snorted†. Similarly â€Å"mimsy† is generally taken as a mixture of â€Å"miserable† and â€Å"flimsy†. Both of these new words are now in the dictionary. For example, the OED defines chortle like this :  Ã¢â‚¬ ¨Ã‚   chortle:   verb laugh in a breathy, gleeful way.  noun a breathy, gleeful laugh.  ORIGIN coined by Lewis Carroll in Through the Looking Glass; probably a blend of CHUCKLE and SNORT. It’s likely that most people who use â€Å"chortle† are unaware it was a word made up in the 1870s.   There are now very many portmanteau words that have become accepted as valid in their own right : â€Å"smog†, â€Å"brunch†, â€Å"infotainment†, â€Å"dumbfound†, â€Å"fanzine†, â€Å"genome†, â€Å"sitcom† and so forth. They key point is that the meaning of the new word is mid-way between the two original words in some way.    Some portmanteaux are less successful. For example, it’s quite common to hear people using the ugly jargon-word â€Å"guesstimate† (or â€Å"guestimate†). This word, clearly, is a mixture of â€Å"guess† and â€Å"estimate†. But all-too often it is employed when â€Å"guess† or â€Å"estimate† would be perfectly clear and accurate.   So should writers feel free to just invent new words? Clearly many have done in the past. Shakespeare, for example, coined a variety of new usages. Perhaps the best advice would be to stick to existing words where they work as this helps keep your writing clear. At the same time, be aware that coining a new word is a possibility. In part it depends on what you are writing. It’s very common, for example, for reporters discussing some new scandal to form a portmanteau with the –gate suffix (i.e. as a reference to Watergate). Thus there is â€Å"Irangate†, â€Å"spygate†, â€Å"climategate† and so forth. A reader seeing one of these new words will instantly be able to grasp its meaning without its needing to be explained. If readers can’t make such an interpretation, however, they won’t know for sure what you intended by the word and your writing will suffer. Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Vocabulary category, check our popular posts, or choose a related post below:12 Greek Words You Should Know20 Rules About Subject-Verb AgreementMay Have vs. Might Have

50 Problem Words and Phrases

50 Problem Words and Phrases 50 Problem Words and Phrases 50 Problem Words and Phrases By Mark Nichol Oh, what a tangled web we weave when first we practice to conceive written communication. So many pairs or trios of words and phrases stymie us with their resemblance to each other. Here’s a quick guide to alleviate (or is it ameliorate?) your suffering: 1. a while / awhile: â€Å"A while† is a noun phrase; awhile is an adverb. 2. all together / altogether: All together now â€Å"We will refrain from using that two-word phrase to end sentences like this one altogether.† 3. amend / emend: To amend is to change; to emend is to correct. 4. amount / number: Amount refers to a mass (â€Å"The amount saved is considerable†); number refers to a quantity (â€Å"The number of dollars saved is considerable†). 5. between / among: The distinction is not whether you refer to two people or things or to three or more; it’s whether you refer to one thing and another or to a collective or undefined number â€Å"Walk among the trees,† but â€Å"Walk between two trees.† 6. biannual / biennial: Biannual means twice a year; biennial means once every two years. 7. bring / take: If it’s coming toward you, it’s being brought. If it’s headed away from you, it’s being taken. 8. compare to / compare with: â€Å"Comparing to† implies similarity alone; â€Å"compare with† implies contrast as well. 9. compliment / complement: To compliment is to praise; to complement is to complete. 10. comprise, consist of / compose, constitute: Comprise means â€Å"include,† so test by replacement â€Å"is included of† is nonsense, and so is â€Å"is comprised of.† The whole comprises the parts or consists of the parts, but the parts compose or constitute the whole. 11. connote / denote: To connote is to convey (â€Å"Air quotes connote skepticism or irony†); to denote is to specify (â€Å"A stop sign denotes the requirement to halt†). 12. continual / continuous: Continual events are frequently repeated, or intermittent. Continuous events are uninterrupted, or constant. 13. credible / credulous: To be credible is to be authoritative; to be credulous is to be gullible. 14. deserts / desserts: If you eat only cake, pie, ice cream, and the like, you eat just desserts. If you have it coming to you, you get your just deserts as well. (However, the connotation is negative, so hit the gym.) 15. different from / different than: The former phrase is preferred in formal writing; but â€Å"differently than† is always correct usage. 16. discreet / discrete: Discreet means â€Å"subtle†; discrete means â€Å"separate.† (â€Å"He discreetly reminded them of their discrete meanings.†) 17. each other / one another: â€Å"One another† is preferred in formal writing when more than two of something are being discussed. 18. economic / economical: Economic refers to the science of economics; economical suggests frugality. 19. elemental/elementary: What’s elemental is essential or integral to nature; what’s elementary is basic. 20. ensure / insure / assure: To ensure is to guarantee, to insure is to indemnify, and to assure is to comfort or convince. 21. epidemic / endemic / pandemic: An epidemic is the outbreak of disease in a limited place and time; an endemic disease is a recurring one peculiar to a place or population; a pandemic is pervasive over a wide geographical area. 22. forgo / forego: To forgo is to go without; to forego is to go before (and is generally used only in the forms foregoing and foregone, which are themselves rare). 23. gibe / jibe / jive: To gibe (soft g, as in gym) is to taunt or insult (though jibe is an alternate spelling), to jibe with is to coincide or fit, to jive is to deceive. 24. historic / historical: Something historic is remarkable for its impact on history; something historical is simply an event in history. 25. home in / hone in: To home in is to close in; to hone in is to confuse one word for another. (â€Å"Hone in† has no meaning.) 26. jealousy / envy: Jealousy is resentment; envy is covetousness. 27. lay / lie: Lay is transitive, associated with a direct object â€Å"Lay that pencil down.† â€Å"Yesterday, I laid that pencil down.† â€Å"That pencil has been laid down.† Lie is intransitive, not so associated â€Å"Lie down.† â€Å"Last night, I lay down.† â€Å"It was my plan to have lain down already. 28. leach / leech: To leach is to dissolve by percolation; to leech is to remove blood with a leech or to exhaust; as a noun, it means a parasitic worm or the human figurative equivalent, or the edge of a sail (also spelled leach). 29. libel / slander: Libel is written defamation; slander is the spoken equivalent. 30. may / might: May refers to factual or possible; might is appropriate for the hypothetical or counterfactual. 31. nauseous / nauseated: To be nauseous is to cause sickness. To be nauseated is to feel sick. 32. notable / noticeable / noteworthy: Something notable is worthy of note. Something noticeable is capable of being noticed. Noteworthy is a synonym of notable, though the former implies the unusual and the latter the commendable. 33. partly / partially: Partly means â€Å"in part†; partially means â€Å"incomplete† or, rarely, is an antonym for unfairly. 34. peak / pique: To peak is to reach the pinnacle; to pique is to arouse interest or to bother. 35. people / persons: People has assumed primacy; persons is reserved mostly as a synonym for bodies (â€Å"those belongings carried on their persons†). 36. persuade / convince: To persuade someone is to motivate them to do something; to convince someone is to lead them to understand or believe. 37. predominantly / predominately: Both forms are correct, but predominantly predominates. 38. purposely / purposefully: What’s done purposely is done on purpose; what’s done purposefully is done with a purpose. 39. regrettably / regretfully: Regrettably is a synonym for unfortunately; regretfully means just that full of regret. 40. repetitive / repetitious: Both terms have acquired a negative connotation, but the former retains a more neutral meaning. 41. sensual / sensuous: Sensual has an erotic connotation; sensuous refers more neutrally to what is pleasurable to the senses. 42. since / because: Informally, these terms are interchangeable, but in formal writing, since should be used only to refer to time. 43. stationary / stationery: To be stationary is to stand still; stationery refers to letter-writing materials. 44. that / which: That is used restrictively (â€Å"The pencil that is sharp† among more than one pencil, the one with that characteristic); which is employed nonrestrictively (â€Å"The pencil, which is sharp† one pencil alone, possessing that characteristic). The distinction is rarely observed other than in American English. 45. tortuous / torturous: A tortuous experience is a winding one; a torturous one is painful. 46. transcript / transcription: A transcript is a thing; a transcription is the process of creating it. 47. verbal / oral: Verbal refers to both written and spoken communication, but oral is useful for distinguishing the latter from the former. 48. while / although / whereas: Informally, while is a synonym for the other two terms, but in formal writing it should be reserved for temporal connotations. 49. wreak / wreck: These terms do not share etymological origin; you wreck a party, but you do so by wreaking havoc. 50. whether / if: Both words are correct in expressing a choice, but the former is more appropriate in formal writing (â€Å"I can’t decide whether to go†), whereas the latter is better reserved for reference to possibility or probability (â€Å"I’ll go if you do†). Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Misused Words category, check our popular posts, or choose a related post below:50 Handy Expressions About Hands50 Diminutive Suffixes (and a Cute Little Prefix)Sentence Adverbs

Unit 3IP Essay

Unit 3IP Essay Unit 3IP Essay Emergency Plan of Action of a Terrorist Attack Markel Limbacker AIU CRJS210 Abstract The chief of police has asked Captain Markel Limbacker, Sr. to develop a multiagency emergency response plan. This plan should include local, state, and federal law enforcement agency to be prepared in case of a terrorist attack on American soil. This plan should include what agencies will be a part of it and why. It should entail if their current responsibilities will be negatively affected and how. Each agencies that is involved their roles should be included and who will be the leader to go to in case of an attack. Emergency Plan of Action for a Terrorist Attack Charlotte Mecklenburg Police Department (CMPD) of Charlotte, NC has been chosen to lead the way in forming an emergency plan of action for a terrorist attack. CMPD has a team called the â€Å"ALERT Team† (CMPD, 2013). It stands for Advanced Local Emergency Response Team, and is a defined group of 90 members trained to respond to a terrorist attack. Captain Limbacker of CMPD East division has asked for North Caroline State Highway Patrol (NCSHP) to join forces with the emergency plan. Captain Limbacker has asked NCSHP to join due to they will bring their knowledge of all NC highways. The NCSHP is responsible for making sure the highways are safe for all drivers and passengers. Occurring to NCSHP website, â€Å"The NCSHP’s primary mission is to reduce collisions and make the highways of NC as safe as possible† (Grey, 2014). There are over 1,600 troopers and their range of coverage is 78,000 miles of highway, this makes NCSHP highway coverage larger than any other state except Texas. With this said it is highly recommended to have the NCSHP become part of the emergency plan. If there is such an attack on Charlotte, NC; NCSHP can be dispatch to address anyone escaping on the roads. Having NCSHP also helps to try and prevent any attacks as suspicion vehicles can be spotted from Troopers on post. NCSHP regular responsibilities will not be impacted negative at all. The great thing about using them is that they will be able to perform regular duties as watching the highways. In the mist of doing their jobs normally it will just be added to assist with watching the highways for terrorist. There will be no change to normal daily functions from NCSHP. The FBI should be a major part of the emergency response plan. Who better to know terrorist than the FBI? It has been said after the 9/11 attacks of the twin towers in the great city of NY, then president George W. Bush and his administration declared a war on terror. This had given the FBI a more range of power to attack those who are responsible for terrorist attacks on America (Greenberg, 2011). Before the 9/11 attacks the FBI have been involved in fighting terrorist. The FBI has worked thoroughly and gathered files and information on well know terrorist and upcoming terrorist across the world. What the FBI will bring to the table is critical to the cause of protection of U.S. citizens from terrorists’ attacks. The FBI can continue to have more in depth surveillance equipment that local and state law enforcement do not have. The FBI is able to cross state to state to reach areas not capable to be reach by others. Their sources and capability is amazing and much needed in this plan. The FBI has been given better guidelines to expand their spying power since Bush left office. The new guidelines have lowered the standard of authorize surveillance, prompting civil

Talk to Frank Programme Essay Example | Topics and Well Written Essays - 4000 words

Talk to Frank Programme - Essay Example The UK government, concerned about the rising illicit substance use, and its helplessness in combating it tried something novel in 2003. It launched an anti-drug campaign called ‘Talk to Frank’ which is a combination of drug related information and helpline for addicts and casual users. â€Å"The government says it is the first campaign aimed at parents and carers as well as teenagers.†Ã‚  The helpline, in fact can be used by anyone interested or concerned about drug usage by a relative or a friend. The campaign is implemented with the backing of the UK Home Office, the Department of Health, and minister of education. Critics say that the campaign only addresses use of class A drugs. The UK law has classified illicit drugs into three categories namely class A, B, and C. The Home Office has included the following drugs as coming under class A namely â€Å"Ecstasy, LSD, heroin, cocaine, crack, magic mushrooms, and amphetamines.† (Drugs).According to the Misus e of Drugs Act, the most harmful among the above classifications is included under class A. The Act proclaims that â€Å"These drugs are termed as controlled substances, and Class A drugs are those considered being the most harmful.† (Drug laws & licensing). The campaign is shown as advertisements on TV and the press and only says that a help-line is available along with a website called â€Å"talktofank.com.† In other words, the website and the helpline comprise the whole programme. The website appears a bit garish or even psychedelic. It can be said that the site is very unattractive visually and is badly designed. It has five main menus, namely ‘A-Z of drugs, Join In, Talk to Frank, Worried about someone, Need Help, and Share. It also clearly shows the helpline number on the top of the page. The Join In section enables the public to share their experiences with others. The section also provides information on how drugs alter the state of mind. A lot of importa nce is given to cannabis and cocaine, probably because of their dangers and widespread use. More links on how ‘ecstasy’ and ‘LSD’ affect the mind is also provided. As an example, an extract of the information the site gives on cocaine is given below. â€Å"Coke is very addictive. It can be difficult to resist the craving and strong psychological dependence due to changes in the brain. Recent evidence suggests possible long-term changes to the nervous system.  

Safety and Health Issues in the Hospital Laboratory Essay

Safety and Health Issues in the Hospital Laboratory - Essay Example This is what occupational health and safety is all about; protecting the workers from the possible health and security hazards in the work place. Basically, occupational health and safety is an interdisciplinary field which is concerned with the protection of the safety, welfare and the health of the people in work or employment environment. Primarily, the workers are the one who are protected but as a secondary effect, the co-workers, family members, customers, suppliers, surrounding community and the general public that may be affected by the work environment have also to be protected. This paper seeks to highlight health and safety at the work place by considering a case study of a hospital laboratory. It will consider the possible health and safety hazards in the hospital laboratory and how they can easily be managed. Occupational health and safety is not a new idea because since 1950, the World Health Organization (WHO) and the International Labour Organization (ILO) jointly sought to define the concept. The paraphrased joint definition requires that occupational health aims at maintenance of the physical, social and mental wellbeing of all the workers in their workplace (Ladou, 2006). It should also prevent all the safety and health hazards caused by the working conditions thereby protecting the health and physical safety of the workers in a particular working environment. Finally, the practice of occupational safety health and safety also ensures the assignment and maintenance of workers in environment which is in tandem with both their psychological and physiological capacities and thereby adapting the worker to his job and vice versa. Having seen the three major concerns of the practice of occupational health and safety, we shall basically focus on the role of prevention of the safety and health hazards that are caused by the working conditions (Roughton, 2002). In this case, the work environment being considered is the hospital laboratory. 3.0 The Case Study The hospital laboratory is a very important part in the hospital system that helps in the diagnostic function of the system. The laboratory either confirms diagnosis or provides information that helps in the diagnostic process. In the laboratory, the tests that are carried out are aimed at establishing the cause of the observed disease symptoms. The test is often carried out on body fluids and/or wastes such as urine, faeces, blood, sputum, saliva, etc. All these fluids are very potent media for pathogens and other micro organisms that cause diseases in the human body. The test in the

Reasons for the Growth of MNEs from Emerging Economies from a Essay

Reasons for the Growth of MNEs from Emerging Economies from a Theoretical Perspective - Essay Example The author of the essay "Growth of MNEs from emerging economies from a theoretical perspective" explains, MNEs are Multinational Enterprises which operate in many nations as part of their internationalizations strategy. Barlett, Ghoshal and Beamish (2008) provide a similar definition to MNEs, by stating MNEs are â€Å"organizations that have substantial direct investment in foreign countries and actively manage those operations and regard those operations as integral parts of the company both strategically and organizationally.† However, the same type of organization are also referred by other term as well like international firms, multinational companies, transnational or 'global', to supranational, etc in common day usage, in business circles and in various articles and books. This being the case, the term MNEs are used in particular contexts. That is, as pointed out earlier, the organizations that operate in many countries are not simply a MNC or MNE in just the legal sense . Instead, they are â€Å"an aggregate group or network of corporate and non-corporate entities, established under the domestic laws of different nations and thereby endowed with different nationalities†. In that context, the term enterprise or MNE appears to be the most suited for covering all the many and varied forms of corporate and operational interrelationships. (Zurawicki 1979). Thus, due to their extensive operations, they are being influenced by various factors from their origination to every day functioning. This is particularly visible when the MNEs are divided into MNEs from developed countries and MNEs from emerging or developing countries or economies. That is, it is a well known fact that economic advantages, military strength, technological capabilities, even geographical strength and other aspects differentiate and categorize countries of the world as developed, developing and poor countries. This categorization is also visible among the business circles, wit h the organizations categorized into MNEs from Developed countries (DMNEs for short) and MNEs from Emerging countries (EMNEs for short). According to Rugman (2009), â€Å"currently the world's 500 largest MNEs dominate world trade and investment, and in terms of FDI the world's largest firms account for 90 percent of the world total.†. As these MNEs operate in many countries by having subsidiaries, joint ventures, etc., they are making positive impacts all over the world. That is, many MNEs from emerging and least developed countries are also working as part of this large MNE system. â€Å"It is through the activities of this set of very large MNEs that less developed countries are being integrated into the world's economic system.† (Rugman 2009). But, at the same time, when the positions of these DMNEs and EMNEs are compared, it appears that EMNEs are positioned well below DMNEs. That is, although EMNEs from many countries including China, India, Brazil, etc, etc. hav e increased in numbers in the recent decades due to various accentuating factors, they constitute only minority among the largest firms of the world. â€Å"Although their numbers have increased, developing-country firms account for only between 5 and 8.4% of the largest public firms. Moreover, they tend to be present at the lower end of the ranking† (Cuervo-Cazurra and Genc 2008). Even then EMNEs are coming up with optimal strategies to strongly compete with the DMNEs, and in many cases are even overtaking the DMNEs. This paper focusing of these EMNEs will first discuss how certain historic, geographic, cultural and institutional factors acted and are still acting as the disadvantages for the EMNEs, and then will discuss how notwithstanding these disadvantages, the EMNEs are able to compete with established DMNEs through effective strategies. One of the main disadvantages which have been faced by

Transformational Leadership in Organizations Essay

Transformational Leadership in Organizations - Essay Example The term ‘leadership’ can be defined in various ways it can be stated as a mechanism through which all the team members are guided to achieve a common goal or a tool that enables all the members of an organization to work together and is supported by the leader as and when required. There are various forms of leadership and the appropriate leadership style that is adopted by an organization depends on a particular situation and nature of the team members. Transformational leadership is a form of leadership that facilitates job performance, morale and motivation of all the team members. This form of leadership enhances the followers to include their identity to the project and inspires more of collectivism in the organization so that every member feels being valued for their contribution towards the organization. Transformational leader becomes a role model for all the followers that makes them interested and also inspires them to work towards the common objectives of the organization. The leader adopting this kind of leadership style imposes challenges on the followers so that they can take more of ownership towards the job they perform, analyzes well the weaknesses and strengths of the team members and aligns the tasks to be executed by the followers in such a way that it enhances the overall work performance of the team members. Organizational leaders are the ones that shape and define work and contribute towards innovative practices in the organization. Individual leadership is one of the most important determinants of organizational innovation.

UAE Free Trade Zones Research Paper Example | Topics and Well Written Essays - 1750 words

UAE Free Trade Zones - Research Paper Example They advance fiscal improvement by drawing investment and creating employment and overseas exchange income. Without a doubt, the zone conception is so dominant, that to a greater extent nations are distinguishing a novel exemplar of Free Zones. Whilst the old Free Zone was time and again illustrated as stationary, labor-demanding, motivation driven, the novel zone model is a dynamic investment demanding, one that is administration driven, facilitating an incorporated fiscal development device. In the UAE, the initial Free Zone at Jebel Ali came into being in 1985 and made available intercontinental businesses and firms a focus, which linked the East and the West and stretched out the prospects of their maneuvers (UAE Government, 2008). Nowadays there are over 24 Free Zones in the UAE offering first-rate amenities and communications for carrying out business and most significantly are industry detailed in nature. Abu Dhabi Airport Free Zone The Airports Company of Abu Dhabi is setting up Abu Dhabi Airport Free Zone also referred to as ADAFZ. It is a commerce and logistics park, to be functioned as a free zone (UNDP, 2002).With Abu Dhabi having the largest population in the UAE, as shown in the chart below, it becomes suitable for setting up of the Free Trade Zone. Figure 1: UAE population figures by the Emirates Source: http://adafz.ae/images/adafza-brochure.pdf Every justifiable logistics actions apart from banking are permissible in the park, conditional on the observance to the surroundings, health and safety necessities. As the park is located near the suburban region, all actions ought to be friendly to the environment. An investor ought to encompass a let out amenity to acquire the license to work from the park. There are straightforward and proficient measures for handling of cargo and authorization. ADAFZ is working together closely with Ports Company of Abu Dhabi for haulage of commodities from the park. There are no explicit restrictions of labor. Howe ver, the visa will be given out founded on the approval of the government. Once the imbursement is completed in conjunction with the obligatory credentials, the registration will take just two days of work. Corporations can let out offices, plots of land or Industry of Light Units founded on accessibility. A corporation can contain multiple amenities (Kemp, 2002). All services are priced as per usage by the confined giver. Numerous business sectors are being persuaded, a number of them being, Logistics, cargo & freight, Aviation & aerospace Electronics, Computers, internet and IT Electrical, Consultancy and business development, medical equipment, Telecom, express transportation, and pharmaceuticals. ADAFZ offers three sorts of commerce licenses; license of trade, license of service and an industrial license (Mustafa, 2002). FTZ1-Positive Contributions to the UAE This trade park provides the clientele with a dynamic overcrowding, an environment that is free. They proffer rapid and p roficient clearance cargo services. Entry to the apron of the airport in addition to global shipment forward, and agencies of cargo clearance is readily obtainable. Onsite inspection amenity of cargos is given. ADAFZ offers all inclusive shop resolution for every investor necessities and overhauls (UNDP, 2003). The amenities can be obtained daily with online client support scheme. A variety of services such as commerce registration, certification, letting, member of staff

Transformational Leadership in Organizations Essay

Transformational Leadership in Organizations - Essay Example The term ‘leadership’ can be defined in various ways it can be stated as a mechanism through which all the team members are guided to achieve a common goal or a tool that enables all the members of an organization to work together and is supported by the leader as and when required. There are various forms of leadership and the appropriate leadership style that is adopted by an organization depends on a particular situation and nature of the team members. Transformational leadership is a form of leadership that facilitates job performance, morale and motivation of all the team members. This form of leadership enhances the followers to include their identity to the project and inspires more of collectivism in the organization so that every member feels being valued for their contribution towards the organization. Transformational leader becomes a role model for all the followers that makes them interested and also inspires them to work towards the common objectives of the organization. The leader adopting this kind of leadership style imposes challenges on the followers so that they can take more of ownership towards the job they perform, analyzes well the weaknesses and strengths of the team members and aligns the tasks to be executed by the followers in such a way that it enhances the overall work performance of the team members. Organizational leaders are the ones that shape and define work and contribute towards innovative practices in the organization. Individual leadership is one of the most important determinants of organizational innovation.

Inviting a Distinguished Guest (email format) Assignment

Inviting a Distinguished Guest (email format) - Assignment Example Core to the group’s agenda is development of members’ entrepreneurial potentials for self-employment and job creation for members and the group believes that you are a perfect example of successful people in this scope, both in your industry and beyond. The group succeeded in ventures such as sponsoring its members’ viable business ideas. Visionaries Group therefore wishes to invite you to address its members on your strategies to success, challenges that you have faced in the journey, your motivational factors, and your vision for the next decade. We believe that your presence and address will have great impacts on the young minds that wish to follow the same path as yours. The seminar will be held at University of California Los Angeles. Every member of the group is looking forward to your address and to interact with you at a personal level and the group is able to reschedule the seminar to suit your schedule. There will be other invited quests but all have communicated their availability and flexibility to our scheduled time. There will be a token of appreciation for your special time as the group has set aside $ 500 for the purpose. All of us look forward to your confirmation of your availability for our seminar and your suitable date, time, and suitable duration

Fun for Life Essay Example for Free

Fun for Life Essay Many topics for you to try. Some of these came from IELTS and other textbooks, others are from websites. You can also see TWE (Test of Written English) topics from the TOEFL exam here. Use CTRL+F to find keywords or topics from this page in your browser. The destruction of the world’s forests is inevitable as our need for land and food grows. Do you agree? Write this essay in the forum! See what other people think of your writing! Damage to the environment is an inevitable consequence of worldwide improvements in the standard of living. Discuss. Are famous people treated unfairly by the media? Should they be given more privacy, or is the price of their fame an invasion into their private lives? Are our zoos cruel to wild animals? Are women are better parents than men? Are zoos are necessary for education? Children learn best by observing the behavior of adults and copying it. Do you agree or disagree? Use specific reasons and examples to support your answer. Children should never be educated at home by their parents. What is your opinion? Use specific reasons and examples to support your answer. Computers can translate all kinds of languages well. Do our children need to learn more languages in the future? Damage to the environment is an inevitable consequence of worldwide improvements in the standard of living. Discuss. Discuss some of the arguments for and against keeping animals in zoos. Discuss the advantage and disadvantage of giving international aid to poor countries. Do the benefits of study abroad justify the difficulties?

A Sentinel Event Related To Nurse Fatigue Nursing Essay

A Sentinel Event Related To Nurse Fatigue Nursing Essay 12 hour shifts, extended work periods, voluntary and mandatory overtime, and excessive workloads are all factors that dangerously contribute to nurse fatigue, which has led to a number of medication errors and sentinel events (Rogers, Hwang, Scott, Aiken, Dinges, 2004). In the 2004 study by Rogers, Hwang, Scott, Aiken, Dinges, it was found that the longer the shift, the risks for errors increases. Also, when working longer than 17 hours without sleep, nurse fatigue has been shown to demonstrate the equivalence of being under the influence with a blood alcohol concentration of 0.05% (Garrett, 2008). The effects of fatigue on nurses includes problems such as: compromised problem-solving skills, decreased attention span, delayed reaction time, memory lapses, impaired communication, and inability to focus, which are all important for nurses to be aware of in order to provide quality and safe patient care (Warren Tart, 2008). The evidences and dangers of nurse fatigue linked to adverse events from the long work hours and cumulative days of extended work hours has been greatly recognized by The Joint Commission (TJC) issuing a sentinel event alert on December 14, 2011, regarding health care worker fatigue and patient safety (The Joint Commission, 2011). So, I will be discussing the following in the paper that includes: explanation of reviewable sentinel events, a specific sentinel event related to nurse fatigue, and its root cause analysis. Explanation of Reviewable Sentinel Events As defined by TJC, a sentinel event is an unexpected occurrence involving either death, serious physical or psychological harm, or the risk thereof that prompts the need for immediate investigation and response (Sentinel Events Policy and Procedures, 2012). But, for a sentinel event to be considered reviewable, it must meet any of the following criteria: the event resulting in an unanticipated death, coma, permanent loss of function, unrelated to the natural course of the patients illness or underlying condition, or the event is one of the following, but not limited to: suicide within 72 hours of being discharged from a 24 hour care setting rape, sexual abuse/assault elopement abduction (Sentinel Events Policy and Procedures, 2012). A Specific Sentinel Event Related to Nurse Fatigue On July 5, 2006, Jasmine Gant, a pregnant 16 year old high school student, arrived with her mother at St. Marys Hospital in Madison, Wisconsin at 9:30 A.M. for her scheduled induction (Smetzer, Baker, Byrne, Cohen, 2010). The Labor and Delivery (LD) nurse assigned to care for Ms. Gant that day was Julie Thao, 41 years old. Mrs. Thao had been working at St. Marys Hospital since 1993, and worked in the LD department for 15 years. The day before July 5, 2006, Mrs. Thao had voluntarily worked a double shift for a total of 16 hours or more to cover for the units short staff. Mrs. Thao was extremely fatigued by the end of her shift that ended at midnight. She spent the night at the hospital to avoid her hour long commute home and because she was due for her next shift at 7 A.M. So on the morning of July, 5, 2006, the very fatigued nurse Mrs. Thao started her shift caring for one expectant mother. When Ms. Gant presented at the LD unit later that morning, Mrs. Thao spent time with her and her mother completing the admission process that is done with every admitting patient. However, Mrs. Thao did not apply a bar-coded identification band to Ms. Gants arm at this time (Smetzer, Baker, Byrne, Cohen, 2010). When discussing pain management, Ms. Gant expressed the possibility of wanting to use epidural, which Mrs. Thao would relay the message to the obstetrician. At 11:30 A.M., Ms. Gants physician arrived to her room to rupture her amniotic membrane. The physician told Mrs. Thao that he planned to check back before determining with the patient the need for epidural. In the meantime, he had ordered Pitocin, Lactated Ringers (LR) solution, and intravenous (IV) penicillin to treat a strep infection that Ms. Gant had. While Mrs. Thao was in the room, the patient communicated to her that she was anxious about receiving epidural. So, Mrs. Thao thought it would be a good idea to retrieve epidural solution, Bupivacaine, to show the patient and in anticipation since the Anesthesiologist would get upset for not having it readily available. Now, St. Marys Hospital had just started transitioning and training the employees in using the newly installed bar coded medication administration system. Apparently, the hospital was currently having problems with it, so the nurses were instructed to give the medications when needed and document them manually. Well, Mrs. Thao bypassed the system to remove the Bupivacaine, which she also did not have authorization or permission to do so for that medication. Then, she gathered the LR solution and Pitocin before walking back into the patients room. On the way, another nurse handed her the IV penicillin. When Mrs. Thao entered the patients room, she sat the supplies on the counter and began to prepare and initiate the IV infusion. Carelessly, Mrs. Thao made the fatal mistake and grabbed the epidural solution instead of the penicillin, both looking very similar in appearance, administering it intravenously into Ms. Gants arm. Unknowingly of the mistake she had just done that would soon c ost her nursing career and her patients life, Mrs. Thao went on to rewinding the tape on the birthing process to play for the patient, her mother, and the babys father who had just showed up creating lots of tension. Within minutes, the patients mother terrifyingly screamed for mercy. At this point, her daughter was in respiratory distress, seizing, and into a cardiac arrest. The frantic nurse immediately called the rapid response team and code blue. Every effort was made to resuscitate Ms. Gant, but she remained asystolic. Ms. Gant was immediately taken to the operating room to have an emergency cesarean section where the physicians delivered an 8 pound healthy baby boy. The health care team continued resuscitating Ms. Gant, but was pronounced dead by 1:43 P.M. After ruling out several possible causes of her death, it was discovered minutes later that the infusing bag was the epidural solution, instead of the penicillin (Smetzer, Baker, Byrne, Cohen, 2010). Her colleagues reported that Mrs. Thao looked extremely fatigued, which possibly increased her likelihood of making the fatal medication error along with the omission to verify the five rights of medication administration. The Root Cause Analysis A root cause analysis (RCA) is a technique used to help identify the possibilities of causes that led to the end result. When a sentinel event occurs, the hospital is accountable to do a root cause analysis. The point of RCA is not to point out who is to blame. Thus, by conducting a RCA, it allows for a plan of action to prevent the same or similar incidents from occurring. The first part of the RCA is defining the problem or effect. Part two is determining why it happened with the cause and effect technique. Part three is generating solutions and implementing a plan of action to reduce the likelihood of the event from happening again. In the sentinel event above, the problem was a medication error by registered nurse (RN) Julie Thao that had resulted in the maternal death of 16 year old expectant mother, Jasmine Gant. The four cause categories formulated for this specific case are: people, work environment, equipment, and policies and procedures. The nurse Mrs. Thaos fatigued had a tremendous effect on the actions leading to the medication error. She had voluntarily worked a back to back shift of 16 hours or more the night before starting work again the next morning. She expressed the desire to go home halfway through her second shift, too. While taking care of Ms. Gant, the nurse was distracted while preparing the medications. Mrs. Thao reported that there was tension in her patients room when the babys father arrived, so she had intended to administer the IV penicillin and put on the educational video of the birthing process. The work environment of the LD unit that Mrs. Thao worked on was not well organized. The nurses did not directly communicate with the Anesthesiologist making it difficult to have the epidural ready upon their arrival. The unit was also short staffed with several nurses on temporary leave (Smetizer, Baker, Byrne Cohen, 2010). If Mrs. Thao had not worked second shift, they would have been inadequately staffed. The staff and managers did not strictly enforce and comply with the policies such as the identification bands and bar code medication administration system. So, the problems associated with the policies and procedures included the delay of the patients identification bar code band application, omission of verifying the five rights of medication administration, and retrieving the epidural before it was ordered. The issue with the delay of the patients identification band was that it took longer for the bands to be made with the new system. The staff and management were lenient and made it a norm to put it on the patient whenever it was a convenient time. However, Mrs. Thao confessed that she did not comply with the five rights of medication administration. Also, she retrieved the epidural before it was ordered to decrease her patients fear and in anticipation of early epidural. Retrieving the epidural in anticipation upon the Anesthesias arrival was a common practice on the LD floor because of the dissatisfaction expressed by some Anesthesiologist of it not being readily available. For equipment, there was the problem of the newly installed bar code medication administration system and the design of the bag of epidural solution and IV penicillin. The new systems constant problems created low rates on compliance on scanning IV bags, and nurses bypassing the system, which included safety features to prevent such errors from happening. The LD unit staff had inadequate training on troubleshooting the system, especially Mrs. Thao. Instead, management allowed them to hang the medications and document them manually. With the mistake of grabbing the wrong bag, Mrs. Thao had brought all the supplies including the two bags from the anteroom and sat them onto the counter near the patients bedside so that she can converse with the patient directly. The bag containing the epidural solution and the bag of the penicillin looked similar in size, but the epidural was slightly bigger. They were both clear solutions. The two bags both had orange label stickers, but the epidural b ag had an additional bright pink warning label. There is also a design flaw in the interconnectivity making the IV tubing compatible with accessing the epidural bag port like it does with the IV solutions (Smetizer, Baker, Byrne Cohen, 2010).

Use of Tension in William Shakespeares Macbeth Essay -- William Shake

Shakespeare ´s play 'Macbeth' is set in the heart of Scotland. The king at the time is king Duncun, a noble and honest king. He has two sons and many Thanes and noble men, one being Macbeth. Macbeth has fought his way up the ranks of the army to become one of Duncun ´s most trusted Lords, but an encounter with three witches puts wickedness into the heart of an otherwise noble and loyal man. In act 1, scene 1, a scene of three witches confronts us. This alone would have created mystery and fright to the audience, setting the scene of the play to come. 'Macbeth' was written in a period when there was a high interest in witchcraft and the supernatural. People were confused and scared by the supernatural, so the sight of three witches would have told the audience that the play would be full of evil and lies. This scene is a short opening to the play. It is long enough to awaken curiosity, but not to satisfy it. The mood of the play is set, although the action and the introduction of the leading characters do not start until the next scene. In act 1, scene 2, we learn about the tough battle which Macbeth and Banquo have fought, and win for the victory for Scotland. Duncun rewards Macbeth for his courage by giving him the title 'thane of Cawdor ´, "with his former title greet Macbeth." Let us not forget that a 'most disloyal traitor' first owned this title. This scene tells us that Macbeth is thought of as a brave and valiant man because he has killed so many people and won the battle almost single-handedly. The language used is quite horrific and the deaths of Macbeth ´s victims are explained in all their gory detail. This ... ...cbeth drugs the guards and takes their daggers. She then lays them ready for Macbeth. She would have murdered Duncan herself if he had not resembled her father. Macbeth returns having murdered Duncan. Shakespeare ´s use of language and structure manages to create tension right up to the murder of King Duncan. He manages to gradually build it up and then release it a little, and then increase it until finally the act of regicide takes place. His use of dramatic irony, the supernatural and indecision all combine to keep the audience on the edge of their seats throughout these scenes. His use of the right language in the right places helps the characters and the play to become really believable. Throughout the play, the supernatural plays a major role. A wise choice by Shakespeare at the time and it still works today. Use of Tension in William Shakespeare's Macbeth Essay -- William Shake Shakespeare ´s play 'Macbeth' is set in the heart of Scotland. The king at the time is king Duncun, a noble and honest king. He has two sons and many Thanes and noble men, one being Macbeth. Macbeth has fought his way up the ranks of the army to become one of Duncun ´s most trusted Lords, but an encounter with three witches puts wickedness into the heart of an otherwise noble and loyal man. In act 1, scene 1, a scene of three witches confronts us. This alone would have created mystery and fright to the audience, setting the scene of the play to come. 'Macbeth' was written in a period when there was a high interest in witchcraft and the supernatural. People were confused and scared by the supernatural, so the sight of three witches would have told the audience that the play would be full of evil and lies. This scene is a short opening to the play. It is long enough to awaken curiosity, but not to satisfy it. The mood of the play is set, although the action and the introduction of the leading characters do not start until the next scene. In act 1, scene 2, we learn about the tough battle which Macbeth and Banquo have fought, and win for the victory for Scotland. Duncun rewards Macbeth for his courage by giving him the title 'thane of Cawdor ´, "with his former title greet Macbeth." Let us not forget that a 'most disloyal traitor' first owned this title. This scene tells us that Macbeth is thought of as a brave and valiant man because he has killed so many people and won the battle almost single-handedly. The language used is quite horrific and the deaths of Macbeth ´s victims are explained in all their gory detail. This ... ...cbeth drugs the guards and takes their daggers. She then lays them ready for Macbeth. She would have murdered Duncan herself if he had not resembled her father. Macbeth returns having murdered Duncan. Shakespeare ´s use of language and structure manages to create tension right up to the murder of King Duncan. He manages to gradually build it up and then release it a little, and then increase it until finally the act of regicide takes place. His use of dramatic irony, the supernatural and indecision all combine to keep the audience on the edge of their seats throughout these scenes. His use of the right language in the right places helps the characters and the play to become really believable. Throughout the play, the supernatural plays a major role. A wise choice by Shakespeare at the time and it still works today.

Paul Strand :: essays research papers

Key Figures 1.  Ã‚  Ã‚  Ã‚  Ã‚  1936 Strand joined with Berenice Abbot to establish the Photo League in New York 2.  Ã‚  Ã‚  Ã‚  Ã‚  Strand was the first photographer to acheive a really decisive break with pictorialism and apply some of the lessons of the new modern art to photography. 3.  Ã‚  Ã‚  Ã‚  Ã‚  Paul Strand was born in New York and attended the Ethical Culture School where his teacher was Lewis Hine. 4.  Ã‚  Ã‚  Ã‚  Ã‚  Strands later work moved toward a documentary approach, attempting to encapsulate a feeling a place and its people in a body of work, published in book form. The most successful of these dealth with rural communities such as the Hebridean Islands or a village in the Italian South. 5.  Ã‚  Ã‚  Ã‚  Ã‚  Strands work was published in the last two issues of Camera Work and the pictures marked a turning point for photography. Laslo Moholy-Nagy 1.  Ã‚  Ã‚  Ã‚  Ã‚  Teacher at the Bauhaus School in Germany. 2.  Ã‚  Ã‚  Ã‚  Ã‚  Establishes the New Bauhaus at the Chicago Institute of Design. 3.  Ã‚  Ã‚  Ã‚  Ã‚  Used straight photography and photomontage. 4.  Ã‚  Ã‚  Ã‚  Ã‚  Disorienting Images. 5.  Ã‚  Ã‚  Ã‚  Ã‚  Experimented with stage design and photography. Man Ray 1.  Ã‚  Ã‚  Ã‚  Ã‚  Surrealist 2.  Ã‚  Ã‚  Ã‚  Ã‚  Made dreamlike images 3.  Ã‚  Ã‚  Ã‚  Ã‚  His revolutionary nude studies, fashion work, and portraits opened a new chapter in the history of photography. 4.  Ã‚  Ã‚  Ã‚  Ã‚  he was enthusiastically welcomed into Dadaist and Surrealist circles 5.  Ã‚  Ã‚  Ã‚  Ã‚  Man Ray experimented tirelessly with new photographic techniques, multiple exposure, rayography, and solarization being some of his most famous. John Heartfield 1.  Ã‚  Ã‚  Ã‚  Ã‚  Original name Helmut Herzfeld 2.  Ã‚  Ã‚  Ã‚  Ã‚  German Dadaist. 3.  Ã‚  Ã‚  Ã‚  Ã‚  Pushed the idea of using massprinted source material by inventing the photomontage. 4.  Ã‚  Ã‚  Ã‚  Ã‚  practice social criticism 5.  Ã‚  Ã‚  Ã‚  Ã‚  Wasn’t allowed to express himself in Germany during Hitler’s time. Aleksandr Rodchenko 1.  Ã‚  Ã‚  Ã‚  Ã‚  Aimed to make the familiar strange. 2.  Ã‚  Ã‚  Ã‚  Ã‚  Wanted to challenge or provoke the viewer. 3.  Ã‚  Ã‚  Ã‚  Ã‚  Valued technology 4.  Ã‚  Ã‚  Ã‚  Ã‚  Style : close ups, unusual vantage points, tilted his camera. 5.  Ã‚  Ã‚  Ã‚  Ã‚  Was born in Russia. Edward Weston 1.  Ã‚  Ã‚  Ã‚  Ã‚  Photographing natural landscapes and forms such as peppers, shells, and rocks, using large-format cameras and available light 2.  Ã‚  Ã‚  Ã‚  Ã‚  produced sensuously precise images raised to the level of poetry. 3.  Ã‚  Ã‚  Ã‚  Ã‚  He became successful working in a soft-focus, Pictorial style, winning many salon and professional awards. 4.  Ã‚  Ã‚  Ã‚  Ã‚  By 1920 he was experimenting with semi-abstractions in a hard-edged style. 5.  Ã‚  Ã‚  Ã‚  Ã‚  own portrait studio between 1911 and 1922 in Tropico, California. Eugene Atget 1.  Ã‚  Ã‚  Ã‚  Ã‚  first of photography's social documenters 2.  Ã‚  Ã‚  Ã‚  Ã‚  His images of Paris are perhaps the most vivid record of a city ever made. 3.  Ã‚  Ã‚  Ã‚  Ã‚  sold 2500 negatives relating to the history of Paris, a large portion of the work he had been accumulating for two decades, to the Caisse National des Monuments Historiques. 4.  Ã‚  Ã‚  Ã‚  Ã‚  some of his photographs were in the magazine La revolution surrealà ­ste.

Mitosis Replication of Eukaryotic Cells

Exercise 13MITOSIS: REPLICATION OF EUKARYOTIC CELLS  ANSWERS TO QUESTIONS1.a. Mitosis and cytokinesis are often referred to collectively as â€Å"cellular division. † Why are they more accurately called cellular replication? The result of mitosis is production of two cells (replicates) identical to the parent cell. The genetic material is replicated rather than divided.b. Does the cell cycle have a beginning and an end? The organization of our study of cellular events indicates a beginning and end, but the events continue to repeat.2.a. If a nucleus has eight chromosomes during interphase, how many chromosomes does it have during metaphase? During metaphase there are 8 double-stranded chromosomes.b. How many does it have after mitosis is complete? After mitosis (and separation of chromatids) there are 16 chromosomes distributed between two nuclei.3.a. Why would we choose an embryonic mass of cells for procedure 13. 3 in which to study the stages of mitosis? embryonic cells a re replicating and growing rapidlyb. Which stage of mitosis most often is associated with the beginning of cytokinesis? usually late anaphase4.a. What region of a root has the most mitotic activity? meristem, just above capb. Why is pinching of the cytoplasm inadequate for cytokinesis in plant cells? Pinching of cytoplasm is not appropriate for rigid cell walls.c. Locate a plant cell in late telophase. What is the volume of the new cells relative to a mature cell? Each cell is smaller (approximately 1/2) than the parent cell.5.a. Why are the combined data from all the class members more meaningful than your results alone? Combined results reduce random error.b. How accurate were your predictions for length of each stage of mitosis? probably not closec. What sources of error can you list for this technique to determine the time elapsed during each stage of mitosis? ariation in onion roots; student's ability to distinguish stages; microscopic cross sections of roots may or may not pas s through the nuclear materialExercise 14MEIOSIS: REDUCTION DIVISION AND GAMETOGENESIS ANSWERS TO QUESTIONS1. a. Why would shuffling genetic material and producing new combinations of characteristics be advantageous to a species? New genetic combinations allow adaptation to changing environments.b. When would it be deleterious? New combinations always produce a percentage of disadvantageous characteristics; the risk of bad gene combinations may be inappropriate in a stable, beneficial environment.2. a.Synapsis occurs after chromosomal DNA has replicated. How many chromatids are involved in crossing-over of a homologous pair of chromosomes?b. Suppose synapsis occurred between two homologous chromosomes, and one had alleles for blue eyes and brown hair and the other had alleles for green eyes and blonde hair. How many different combinations of these alleles would be possible? 4 Remember that crossing-over does not necessarily occur between the loci, so the original combinations may re main intact. 3. a. If a nucleus has eight chromosomes when it begins meiosis, how many chromosomes does it have after telophase I? Telophase II? with two chromatids each; 4 with one chromatid eachb. What are the major differences between the events of meiosis and mitosis? (see table 14. 2)c. What are some minor differences, and why do you consider them minor? minor differences would be those unrelated to chromosomal events4. a. During gametogenesis a sperm cell undergoes considerable structural change. What are the basics of sperm structure and how does it relate to function? The basics include small head with nucleus; an acrosomal process with enzymes to digest the outer membranes of the egg; a head and neck rich in mitochondria; and tail used to propel the cell to the egg.b. What is the advantage of producing sperm in a system of tubes rather than in solid tissue? because sperm cells can be expelled easily from the body through a system of tubesc. What is each strand of a double-s tranded chromosome called? chromatid5. How would retaining extra cytoplasm enhance survival of a developing oocyte? More cytoplasm contains more nutrients to ensure survival.6. a. What are the relative sizes of oocytes in a dormant follicle, a growing follicle, and a Graafian follicle? dormant oocyte 1X, growing oocyte 5X, mature oocyte 25Xb. Are polar bodies visible in your prepared slide of a cat ovary? Why or why not? probably not, because cells in the ovary usually have not finished meiosis I, and polar bodies disintegrate rapidly DNA FINGERPRINTING LABRestriction Digestion of DNA Samples Observation QuestionsDescribe the samples of DNA (physical properties). The DNA samples are clear, colorless liquid samples.Is there any observable difference between the samples of DNA? No. All samples appear similar.Describe the appearance of the restriction endonuclease mix. The restriction enzymes appear to be clear, colorless liquids.Restriction Digestion of DNA Samples Review QuestionsBef ore you incubated your samples, describe any visible signs of change in the contents of the tubes containing the DNA combined with the restriction enzymes. DNA + EcoRI/PstI enzyme mix: No visible change apparent in the tubes.Can you see any evidence to indicate that your samples of DNA were fragmented or altered in any way by the addition of EcoRI/PstI? Explain. No. No visible change apparent in the tubes.In the absence of visible evidence of change, is it still possible that the DNA samples were fragmented? Explain your reasoning. Yes. They may be chemically changed but the changes may not be visible. Enzymes may have cut the DNA.After a 24 hour incubation period, are there any visible clues that the restriction enzymes may have in some way changed the DNA in any of the tubes? Explain your reasoning. No. No visible change apparent in the tubes but the enzymes may have cut the DNA. The reactions are at the molecular level and too small to be seen.Electrophoresis of Your DNA Samples Review QuestionsThe electrophoresis apparatus creates an electrical field [positive and negative ends of the gel]. DNA molecules are negatively charged. To which pole of the electrophoresis field would you expect DNA to migrate (+ or -)? Explain. Positive.What color represents the negative pole? Black.After DNA samples are loaded in wells, they are â€Å"forced† to move through the gel matrix. Which size fragment (large vs small) would you expect to move toward the opposite end of the gel most quickly? Explain. Smaller. There is less resistance to their movement through the gel matrix.Which fragments are expected to travel the shortest distance [remain closest to the well]? Explain. Larger. There is more resistance to their movement through the gel matrix.Lesson 4 Thought QuestionsWhat can you assume is contained within each band? DNA fragments.If this were a fingerprinting gel, then how many kinds (samples) of DNA can you assume were placed in each separate well? One.What wo uld be a logical explanation as to why there is more than one band of DNA for each of the samples? The DNA must have been cut into fragments by restriction enzymes.What probably caused the DNA to become fragmented? The chemical action of the restriction enzymes cutting at specific base sequences.Which of the DNA samples have the same number of restriction sites for the restriction endonuclease used? Write the lane numbers.Lanes 2, 3, and 4 (CS, S1, and S2).Which sample has the smallest DNA fragment? The sample in lane 5 (S3).How many restriction sites were there in lane three? Two sites that cut the sample into two fragments.Which DNA samples appear to have been â€Å"cut† into the same number and size of fragments? Lanes 2 and 4 (CS and S2).Based on your analysis of the photograph, what is your conclusion about the DNA samples in the photograph? Do any of the samples seem to be from the same source. If so which ones? Describe the evidence that supports your conclusion.The DN A samples in lanes 2 and 4 (CS and S2) are from the same individual because they have identical restrictions sites that yield identical fragments.DNA Fingerprinting: OverviewWhat are we trying to determine? Restate the central question. We are trying to determine if samples of DNA that we were provided with are from the same individual or from different individuals.Which of your DNA samples were fragmented? What would your gel look like if the DNA were not fragmented? The number of fragmented samples will vary. They will have one band on the gel if the DNA was not cut.What caused the DNA to become fragmented? The addition of restriction enzymes.What determines where a restriction endonuclease will â€Å"cut† a DNA molecule? A special sequence of bases on the DNA called restriction sites.A restriction endonuclease â€Å"cuts† two DNA molecules at the same location. What can you assume is identical about the molecules at that location? The restriction sites are identical .Do any of your suspect samples appear to have EcoRI or PstI recognition sites at the same location as the DNA from the crime scene? The samples in lanes 2 and 5 match (CS and S3).Based on the above analysis, do any of the suspect samples of DNA seem to be from the same individual as the DNA from the crime scene? Describe the scientific evidence that supports your conclusion. The CS and S3 samples appear to be identical. They both produce similar banding patterns on the gel.Exercise 23 SURVEY OF BACTERIA: KINGDOMS ARCHAEBACTERIA AND BACTERIA ANSWERS TO QUESTIONS1. a. Why is it important that bacteria release nutrients? Nutrients must be released and recycled for use by other living organisms. If nutrients were not released by decomposers, the nutrients would all eventually be locked up in dead, non-decaying tissue.b. What term would best describe heterotrophic bacteria that feed on living tissue? parasitism2. What is the shape and size of each bacterial colony? E. coli—medium rod; B. megaterium—large rod; R. rubrum—small and thin spirillum 3. a. Which type of bacteria is most prevalent in the sample from your teeth? How do you know? probably gram positive because most of the cells are purpleb. Is Bacillus megaterium gram positive or gram negative? gram positive4. a. Where are the bacteria? Are they between cells or inside cells? inside the cellsb. Why is this relationship between a plant and bacterium called mutualism? Both partners benefit from the association.c. How does Rhizobium benefit from this association? nutrients from the hostd. How does the host plant benefit from the association? nitrogen supply from the bacterium5. Based on their appearance, which drugs or chemicals retard the growth of bacteria? depends on the drugs that you use6. Do all cells of a trichome of Oscillatoria appear similar? yes7. a. Do adjacent cells share a common sheath? usuallyb. What do you suppose is the function of the sheath? protectionc. Do clusters of Gloeocapsa represent multicellular organisms? Why or why not?No, the cells are not obligate dependents—they can operate independently; the protoplasms of the cells are not connected; the aggregation of cells can be broken into individual cells without killing the cells.8. a. How is the shape of Merismopedia different from other cyanobacteria you studied in this exercise? Merismopedia is a flat, square colony one cell thick.b. How would a colony attain this shape? equal divisions in two planesExercise 24Survey of Kingdom Protista: The Algae ANSWERS TO QUESTIONS1. a. Is the movement of Chlamydomonas smooth or does it appear jerky? relatively smoothb. Can you see both flagella? You may need to reduce the light intensity to see flagella. probably not, depends on student's microscopec. How does methylcellulose affect movement of Chlamydomonas? slows it downd. How does the stigma help Chlamydomonas survive? detects light2. a. Under what environmental conditions would a zygote not u ndergo meiosis immediately? unfavorable conditionsb. Are spores of Chlamydomonas haploid or diploid? haploidc. Which portions of the life cycle of Chlamydomonas are haploid? all portions from meiosis to syngamyd. Which are diploid? all portions from syngamy to meiosis3. a. Are the filaments of Spirogyra branched? nob. What is the shape of the chloroplasts of Spirogyra? spiralc. Can you see any conjugation tubes? If you can't, examine the prepared slides that demonstrate these structures. probably not seen on live material, but easily seen on prepared materiald. How do you think that Spirogyra reproduces asexually? mitosis and fragmentation4. a. How is Cladophora morphologically similar to Spirogyra. How is it different? They are both filaments, but Cladophora is branched and Spirogyra is unbranched.b. What is the shape of its chloroplasts? broad and dispersed5. a. What is oogamy? ne gamete (sperm) is small and motile, the other gamete (egg) is larger and nonmotileb. What are the tin y spheres inside the larger sphere of Volvox? daughter coloniesc. How do you suppose they get out? Parent colonies turn inside out or rupture.d. How do you think the number of cells in a young Volvox colony compares to the number in a mature colony? less than or equal to the number in the mature colony6.a. How is Fucus' structure different from green algae that you have examined earlier in this exercise? Fucus is larger, more parenchymatous, and flattened.b. Are all portions of the thallus photosynthetic?How can you tell? probably not, due to different concentrations of pigmentsc. Considering where Fucus lives, what do you think is the function of its gelatinous sheath? Since Fucus lives in intertidal regions, the gelatinous sheath probably prevents desiccation.d. Are the swollen structures solid masses or are they empty? essentially empty7.a. Are the gametes of Fucus isogamous or oogamous? oogamousb. How does the structure of tissue surrounding the reproductive structures compare w ith that of green algae? Tissues in brown algae are more complex.8. a. Can you see any pores in the walls of diatoms? robably yesb. Are any of the diatoms moving? possiblyc. If diatoms lack flagella, how do you explain their motility? gliding on a gelatinous secretiond. How would diatomaceous earth compare to sand as a swimming pool filter material? Which would be better and why? Diatomaceous earth would be better because it is finer. How do the shapes of dinoflagellates compare with other unicellular algae that you have observed in this exercise? bizarre and varied What is the function of the eyespot of Euglena? detect lightExercise 25 SURVEY OF KINGDOM PROTISTA: PROTOZOA AND SLIME MOLDS ANSWERS TO QUESTIONS1. a. Can you detect moving cytoplasm in the extending pseudopods of Amoeba? probably yesb. What do you suppose the Amoeba is moving toward or away from? light or foodc. How does the Amoeba respond to nutrient broth? usually increased movementd. Approximately how long would it t ake an Amoeba to move across the field of view on low power? a few minutese. Why is a contractile vacuole of a protozoan often more difficult to see than a food vacuole? A contractile vacuole contains clear excretory fluid, while food vacuoles contain particulate matter.f. Why would excess water tend to accumulate in Amoeba? ecause solute concentration in the amoeba is higher than the concentration in the environment and water diffuses into the cell2. How could fossilized forams in different geological layers of rock or sediment indicate the probability of finding oil? Different species are present in different environmental conditions; therefore, a list of species may include those associated with environmental conditions appropriate for oil formation.3. a. How large is a trypanosome relative to an Amoeba? much smallerb. What alga does a trypanosome superficially resemble? Euglena4. a. Are cilia visible on living or prepared Paramecium? probably notb.Does Paramecium rotate as it mo ves? yesc. How does movement of Paramecium compare with that of Amoeba? With a flagellated alga? Paramecium moves much faster than Amoeba, but not as fast as many flagellated species.5. a. Why is the division of Paramecium cells called â€Å"transverse† fission? The plane of separation is transverse to the longitudinal axis.b. Why is transverse fission not a sexual process? it doesn't recombine genesc. What are the advantages and disadvantages of conjugation in Paramecium? disadvantages: conjugation requires more than one organism and is energy consuming advantage: creation of new genetic combinations6. a. What is the value or function of the rapid contraction stalk of Vorticella? avoid predationb. What is the probable function of the moving cilia of Vorticella? create water currents bringing food particles to the organism7. a. Is cytoplasmic movement of Physarum apparent? probably yesb. Is the movement in a particular direction? probably not, but on moist medium they may app arently move toward foodc. What is a possible function of cytoplasmic movement in Physarum? avoid light, find foodExercise 26 SURVEY OF KINGDOM FUNGI: MOLDS, SAC FUNGI, MUSHROOMS, AND LICHENS ANSWERS TO QUESTIONS1. a. Are hyphae present? ob. Are the cells motile? yes2. a. How many species of mold are on the bread? 2, 3, or 4b. Do any of the molds on the bread have hyphae modified as sporangiophores and sporangia? probably yesc. Is pigment distributed uniformly in each mycelium? If not, where is the pigment concentrated in each mold? No, pigment is usually concentrated in sporangia.d. What is the adaptive significance of spores forming on ends of upright filaments rather than closer to the protective substrate? to enhance distribution of released spores3. a. In what structure is the dark pigment of Rhizopus concentrated? sporangiab.Is Rhizopus reproducing sexually as well as asexually in the same petri dish? How can you tell? Yes (if students are provided with cultures with two strai ns); because sporangia as well as zygospores are visible.4. What is the relative size of Penicillium hyphae compared to Rhizopus hyphae? Penicillium hyphae are much smaller than Rhizopus hyphae.5. a. Do you see chains of yeast cells produced by budding? probably yesb. How is the structure of yeast hyphae different from that of molds? Yeast hyphae are greatly reduced to a chain of one or two cells, while molds are very long and multicellular. 6. What is the difference between dikaryotic and diploid cells? Dikaryotic cells have two distinct nuclei, each with a haploid (single) set of chromosomes; a diploid cell has one nucleus with a diploid (double set of chromosomes).7. How many spores would you estimate are present on the gills of a single cap of Coprinus? Remember that a prepared slide shows only a cross section. many, many thousands8. a. What is the value of photosynthetic algae to the growth of a fungus in a lichen? Algae conduct photosynthesis and produce an energy rich carbon source, (i. e. , glucose).b. Would you expect lichens to grow best in rural or urban environments? Why? best in rural environments because they are so sensitive to air pollutionExercise 27 SURVEY OF THE PLANT KINGDOM: LIVERWORTS, MOSSES, AND HORNWORTS OF PHYLA HEPATICOPHYTA, BRYOPHYTA, AND ANTHOCEROPHYTA ANSWERS TO QUESTIONS1. What are the functions of rhizoids? anchorage, possibly absorption2. What is the function of these pores? gas exchange3. How do the positions of the archegonium and antheridium relate to their reproductive function? Antheridia need to disperse sperm and are upright with pores on top of the antheridial disk; archegonia are protected under the surface of the archegonial disk.4. a. What is the function of the foot? nutrient transport from gametophyte to sporophyteb. Are spores haploid or diploid? haploidc. What is the functional significance of the response of elaters to moisture? dispersal of spores5. a. How many cells thick is the leaflet? one or twob. Is there a midrib? Vein? yesc. Are stomata or pores visible on the leaf surface? probably notd. How does the symmetry of a moss gametophyte compare with that of a liverwort gametophyte? Mosses are radially symmetrical and liverworts are bilaterally symmetrical. 6. a. How many times its own weight did the moss absorb? or more timesb. How does this compare with the paper towel? much greaterc. Why is Sphagnum often used in shipping items that must be kept moist? because it holds water so well7. Where is the egg located in the archegonium? egg is enlarged cell at base of neck8. Are sperm haploid or diploid? haploid9. Is the sporophyte more prominent in mosses or liverworts? mosses10. What is the adaptive significance of the seta of the sporophyte growing well above the mat of the gametophyte? better dispersal11. a. What process produces spores? meiosisb. Is the capsule haploid or diploid? diploid12. Can you think of any evolutionary implications of the similarity between a moss protonema and a filamentous green alga? both have similar form and live in similar habitat, which suggests that selective pressures for developing these structures may have been similarExercise 28 SURVEY OF THE PLANT KINGDOM: SEEDLESS VASCULAR PLANTS OF PHYLA PTEROPHYTA, LYCOPHYTA, PSILOPHYTA, AND SPHENOPHYTA ANSWERS TO QUESTIONS1.a. Which parts of the life cycle are haploid? gametophyteb. Which are diploid? sporophyte2.a. How many veins are present in each frond? usually 1 large veinb. What tissues compose a vein? ylem and phloemc. What is the function of the stalk? The blade? The pinnae? stalk—support; blade and pinnae—photosynthesis3.a. What is the function of an annulus? breaking point for opening sporangiumb. Are any spores in the sporangium? probably so4.a. Did the application of acetone cause the spores of the fern to disperse? probably yesb. How is the mechanism for spore dispersal in ferns similar to that of bryophytes? Moisture causes changes in cell (elater or annulus) shap e to release spores.5.a. Is the prothallium haploid or diploid? haploidb. Is the prothallium sporophyte or gametophyte? gametophyte6. a.What is the adaptive significance of having these structures on the lower surface of the prothallium rather than on the upper surface? protection from desiccationb. What is the adaptive significance of having sperm and egg produced at different times? discourages inbreeding7. How do Salvinia and Azolla differ from other ferns you've examined earlier? smaller, aquatic8. a. What type of branching characterizes Psilotum? dichotomousb. Are any roots present? noc. Are any leaves present? nod. Where are the sporangia? at end of short lateral branchese. Where does photosynthesis occur in Psilotum? stem9.a. Where are the leaves? n rings along stemb. What part of the plant is photosynthetic? stemc. Which part of the life cycle of Equisetum is dominant, the sporophyte or gametophyte? sporophyte10.a. How does strobili formation in Equisetum compare with Lycopo dium and Selaginella? sporangia of Lycopodium and Selaginella are on microphyllsb. How do elaters aid in the dispersal of spores? moves spores11. a. How could a rhizome be involved in asexual reproduction? produces new growth, which could be separated from parent plant (e. g. , via fragmentation), thereby resulting in a new individualb. How is a rhizome different from a rhizoid? hizome is underground stem; rhizoid is small, rootlike structurec. Does the rhizome have leaves? depends on specimen, but probably yesd. What is the shape and size of the leaves? thin, elongate, arranged in spiralse. What is the significance of this form of the leaves? intercept light for photosynthesisf. Is a midvein visible? yes g. What does the word â€Å"evergreen† mean? does not lose all of its leaves seasonallyh. Is â€Å"evergreenness† a good characteristic for classifying plants? Why or why not? No, unrelated plants are evergreen.12. a. How many sporangia occur on each sporophyll of Lyc opodium? oneb.Can you see why spores of Lycopodium are sometimes called â€Å"vegetable sulfur†? yesc. Why are the spores a good, dry lubricant? powdery; certain species produce some oild. Which is the dominant part of the Lycopodium life cycle, the sporophyte or gametophyte? sporophyte13. a. Are spores of Selaginella similar in size? nob. What is this condition called? heterosporousc. What is the functional significance of the difference in the appearance of dehydrated and rehydrated Selaginella? water conservation and survival during droughtd. Can you see why these plants are sometimes referred to as â€Å"resurrection plants†? yes Mitosis Replication of Eukaryotic Cells Exercise 13MITOSIS: REPLICATION OF EUKARYOTIC CELLS  ANSWERS TO QUESTIONS1.a. Mitosis and cytokinesis are often referred to collectively as â€Å"cellular division. † Why are they more accurately called cellular replication? The result of mitosis is production of two cells (replicates) identical to the parent cell. The genetic material is replicated rather than divided.b. Does the cell cycle have a beginning and an end? The organization of our study of cellular events indicates a beginning and end, but the events continue to repeat.2.a. If a nucleus has eight chromosomes during interphase, how many chromosomes does it have during metaphase? During metaphase there are 8 double-stranded chromosomes.b. How many does it have after mitosis is complete? After mitosis (and separation of chromatids) there are 16 chromosomes distributed between two nuclei.3.a. Why would we choose an embryonic mass of cells for procedure 13. 3 in which to study the stages of mitosis? embryonic cells a re replicating and growing rapidlyb. Which stage of mitosis most often is associated with the beginning of cytokinesis? usually late anaphase4.a. What region of a root has the most mitotic activity? meristem, just above capb. Why is pinching of the cytoplasm inadequate for cytokinesis in plant cells? Pinching of cytoplasm is not appropriate for rigid cell walls.c. Locate a plant cell in late telophase. What is the volume of the new cells relative to a mature cell? Each cell is smaller (approximately 1/2) than the parent cell.5.a. Why are the combined data from all the class members more meaningful than your results alone? Combined results reduce random error.b. How accurate were your predictions for length of each stage of mitosis? probably not closec. What sources of error can you list for this technique to determine the time elapsed during each stage of mitosis? ariation in onion roots; student's ability to distinguish stages; microscopic cross sections of roots may or may not pas s through the nuclear materialExercise 14MEIOSIS: REDUCTION DIVISION AND GAMETOGENESIS ANSWERS TO QUESTIONS1. a. Why would shuffling genetic material and producing new combinations of characteristics be advantageous to a species? New genetic combinations allow adaptation to changing environments.b. When would it be deleterious? New combinations always produce a percentage of disadvantageous characteristics; the risk of bad gene combinations may be inappropriate in a stable, beneficial environment.2. a.Synapsis occurs after chromosomal DNA has replicated. How many chromatids are involved in crossing-over of a homologous pair of chromosomes?b. Suppose synapsis occurred between two homologous chromosomes, and one had alleles for blue eyes and brown hair and the other had alleles for green eyes and blonde hair. How many different combinations of these alleles would be possible? 4 Remember that crossing-over does not necessarily occur between the loci, so the original combinations may re main intact. 3. a. If a nucleus has eight chromosomes when it begins meiosis, how many chromosomes does it have after telophase I? Telophase II? with two chromatids each; 4 with one chromatid eachb. What are the major differences between the events of meiosis and mitosis? (see table 14. 2)c. What are some minor differences, and why do you consider them minor? minor differences would be those unrelated to chromosomal events4. a. During gametogenesis a sperm cell undergoes considerable structural change. What are the basics of sperm structure and how does it relate to function? The basics include small head with nucleus; an acrosomal process with enzymes to digest the outer membranes of the egg; a head and neck rich in mitochondria; and tail used to propel the cell to the egg.b. What is the advantage of producing sperm in a system of tubes rather than in solid tissue? because sperm cells can be expelled easily from the body through a system of tubesc. What is each strand of a double-s tranded chromosome called? chromatid5. How would retaining extra cytoplasm enhance survival of a developing oocyte? More cytoplasm contains more nutrients to ensure survival.6. a. What are the relative sizes of oocytes in a dormant follicle, a growing follicle, and a Graafian follicle? dormant oocyte 1X, growing oocyte 5X, mature oocyte 25Xb. Are polar bodies visible in your prepared slide of a cat ovary? Why or why not? probably not, because cells in the ovary usually have not finished meiosis I, and polar bodies disintegrate rapidly DNA FINGERPRINTING LABRestriction Digestion of DNA Samples Observation QuestionsDescribe the samples of DNA (physical properties). The DNA samples are clear, colorless liquid samples.Is there any observable difference between the samples of DNA? No. All samples appear similar.Describe the appearance of the restriction endonuclease mix. The restriction enzymes appear to be clear, colorless liquids.Restriction Digestion of DNA Samples Review QuestionsBef ore you incubated your samples, describe any visible signs of change in the contents of the tubes containing the DNA combined with the restriction enzymes. DNA + EcoRI/PstI enzyme mix: No visible change apparent in the tubes.Can you see any evidence to indicate that your samples of DNA were fragmented or altered in any way by the addition of EcoRI/PstI? Explain. No. No visible change apparent in the tubes.In the absence of visible evidence of change, is it still possible that the DNA samples were fragmented? Explain your reasoning. Yes. They may be chemically changed but the changes may not be visible. Enzymes may have cut the DNA.After a 24 hour incubation period, are there any visible clues that the restriction enzymes may have in some way changed the DNA in any of the tubes? Explain your reasoning. No. No visible change apparent in the tubes but the enzymes may have cut the DNA. The reactions are at the molecular level and too small to be seen.Electrophoresis of Your DNA Samples Review QuestionsThe electrophoresis apparatus creates an electrical field [positive and negative ends of the gel]. DNA molecules are negatively charged. To which pole of the electrophoresis field would you expect DNA to migrate (+ or -)? Explain. Positive.What color represents the negative pole? Black.After DNA samples are loaded in wells, they are â€Å"forced† to move through the gel matrix. Which size fragment (large vs small) would you expect to move toward the opposite end of the gel most quickly? Explain. Smaller. There is less resistance to their movement through the gel matrix.Which fragments are expected to travel the shortest distance [remain closest to the well]? Explain. Larger. There is more resistance to their movement through the gel matrix.Lesson 4 Thought QuestionsWhat can you assume is contained within each band? DNA fragments.If this were a fingerprinting gel, then how many kinds (samples) of DNA can you assume were placed in each separate well? One.What wo uld be a logical explanation as to why there is more than one band of DNA for each of the samples? The DNA must have been cut into fragments by restriction enzymes.What probably caused the DNA to become fragmented? The chemical action of the restriction enzymes cutting at specific base sequences.Which of the DNA samples have the same number of restriction sites for the restriction endonuclease used? Write the lane numbers.Lanes 2, 3, and 4 (CS, S1, and S2).Which sample has the smallest DNA fragment? The sample in lane 5 (S3).How many restriction sites were there in lane three? Two sites that cut the sample into two fragments.Which DNA samples appear to have been â€Å"cut† into the same number and size of fragments? Lanes 2 and 4 (CS and S2).Based on your analysis of the photograph, what is your conclusion about the DNA samples in the photograph? Do any of the samples seem to be from the same source. If so which ones? Describe the evidence that supports your conclusion.The DN A samples in lanes 2 and 4 (CS and S2) are from the same individual because they have identical restrictions sites that yield identical fragments.DNA Fingerprinting: OverviewWhat are we trying to determine? Restate the central question. We are trying to determine if samples of DNA that we were provided with are from the same individual or from different individuals.Which of your DNA samples were fragmented? What would your gel look like if the DNA were not fragmented? The number of fragmented samples will vary. They will have one band on the gel if the DNA was not cut.What caused the DNA to become fragmented? The addition of restriction enzymes.What determines where a restriction endonuclease will â€Å"cut† a DNA molecule? A special sequence of bases on the DNA called restriction sites.A restriction endonuclease â€Å"cuts† two DNA molecules at the same location. What can you assume is identical about the molecules at that location? The restriction sites are identical .Do any of your suspect samples appear to have EcoRI or PstI recognition sites at the same location as the DNA from the crime scene? The samples in lanes 2 and 5 match (CS and S3).Based on the above analysis, do any of the suspect samples of DNA seem to be from the same individual as the DNA from the crime scene? Describe the scientific evidence that supports your conclusion. The CS and S3 samples appear to be identical. They both produce similar banding patterns on the gel.Exercise 23 SURVEY OF BACTERIA: KINGDOMS ARCHAEBACTERIA AND BACTERIA ANSWERS TO QUESTIONS1. a. Why is it important that bacteria release nutrients? Nutrients must be released and recycled for use by other living organisms. If nutrients were not released by decomposers, the nutrients would all eventually be locked up in dead, non-decaying tissue.b. What term would best describe heterotrophic bacteria that feed on living tissue? parasitism2. What is the shape and size of each bacterial colony? E. coli—medium rod; B. megaterium—large rod; R. rubrum—small and thin spirillum 3. a. Which type of bacteria is most prevalent in the sample from your teeth? How do you know? probably gram positive because most of the cells are purpleb. Is Bacillus megaterium gram positive or gram negative? gram positive4. a. Where are the bacteria? Are they between cells or inside cells? inside the cellsb. Why is this relationship between a plant and bacterium called mutualism? Both partners benefit from the association.c. How does Rhizobium benefit from this association? nutrients from the hostd. How does the host plant benefit from the association? nitrogen supply from the bacterium5. Based on their appearance, which drugs or chemicals retard the growth of bacteria? depends on the drugs that you use6. Do all cells of a trichome of Oscillatoria appear similar? yes7. a. Do adjacent cells share a common sheath? usuallyb. What do you suppose is the function of the sheath? protectionc. Do clusters of Gloeocapsa represent multicellular organisms? Why or why not?No, the cells are not obligate dependents—they can operate independently; the protoplasms of the cells are not connected; the aggregation of cells can be broken into individual cells without killing the cells.8. a. How is the shape of Merismopedia different from other cyanobacteria you studied in this exercise? Merismopedia is a flat, square colony one cell thick.b. How would a colony attain this shape? equal divisions in two planesExercise 24Survey of Kingdom Protista: The Algae ANSWERS TO QUESTIONS1. a. Is the movement of Chlamydomonas smooth or does it appear jerky? relatively smoothb. Can you see both flagella? You may need to reduce the light intensity to see flagella. probably not, depends on student's microscopec. How does methylcellulose affect movement of Chlamydomonas? slows it downd. How does the stigma help Chlamydomonas survive? detects light2. a. Under what environmental conditions would a zygote not u ndergo meiosis immediately? unfavorable conditionsb. Are spores of Chlamydomonas haploid or diploid? haploidc. Which portions of the life cycle of Chlamydomonas are haploid? all portions from meiosis to syngamyd. Which are diploid? all portions from syngamy to meiosis3. a. Are the filaments of Spirogyra branched? nob. What is the shape of the chloroplasts of Spirogyra? spiralc. Can you see any conjugation tubes? If you can't, examine the prepared slides that demonstrate these structures. probably not seen on live material, but easily seen on prepared materiald. How do you think that Spirogyra reproduces asexually? mitosis and fragmentation4. a. How is Cladophora morphologically similar to Spirogyra. How is it different? They are both filaments, but Cladophora is branched and Spirogyra is unbranched.b. What is the shape of its chloroplasts? broad and dispersed5. a. What is oogamy? ne gamete (sperm) is small and motile, the other gamete (egg) is larger and nonmotileb. What are the tin y spheres inside the larger sphere of Volvox? daughter coloniesc. How do you suppose they get out? Parent colonies turn inside out or rupture.d. How do you think the number of cells in a young Volvox colony compares to the number in a mature colony? less than or equal to the number in the mature colony6.a. How is Fucus' structure different from green algae that you have examined earlier in this exercise? Fucus is larger, more parenchymatous, and flattened.b. Are all portions of the thallus photosynthetic?How can you tell? probably not, due to different concentrations of pigmentsc. Considering where Fucus lives, what do you think is the function of its gelatinous sheath? Since Fucus lives in intertidal regions, the gelatinous sheath probably prevents desiccation.d. Are the swollen structures solid masses or are they empty? essentially empty7.a. Are the gametes of Fucus isogamous or oogamous? oogamousb. How does the structure of tissue surrounding the reproductive structures compare w ith that of green algae? Tissues in brown algae are more complex.8. a. Can you see any pores in the walls of diatoms? robably yesb. Are any of the diatoms moving? possiblyc. If diatoms lack flagella, how do you explain their motility? gliding on a gelatinous secretiond. How would diatomaceous earth compare to sand as a swimming pool filter material? Which would be better and why? Diatomaceous earth would be better because it is finer. How do the shapes of dinoflagellates compare with other unicellular algae that you have observed in this exercise? bizarre and varied What is the function of the eyespot of Euglena? detect lightExercise 25 SURVEY OF KINGDOM PROTISTA: PROTOZOA AND SLIME MOLDS ANSWERS TO QUESTIONS1. a. Can you detect moving cytoplasm in the extending pseudopods of Amoeba? probably yesb. What do you suppose the Amoeba is moving toward or away from? light or foodc. How does the Amoeba respond to nutrient broth? usually increased movementd. Approximately how long would it t ake an Amoeba to move across the field of view on low power? a few minutese. Why is a contractile vacuole of a protozoan often more difficult to see than a food vacuole? A contractile vacuole contains clear excretory fluid, while food vacuoles contain particulate matter.f. Why would excess water tend to accumulate in Amoeba? ecause solute concentration in the amoeba is higher than the concentration in the environment and water diffuses into the cell2. How could fossilized forams in different geological layers of rock or sediment indicate the probability of finding oil? Different species are present in different environmental conditions; therefore, a list of species may include those associated with environmental conditions appropriate for oil formation.3. a. How large is a trypanosome relative to an Amoeba? much smallerb. What alga does a trypanosome superficially resemble? Euglena4. a. Are cilia visible on living or prepared Paramecium? probably notb.Does Paramecium rotate as it mo ves? yesc. How does movement of Paramecium compare with that of Amoeba? With a flagellated alga? Paramecium moves much faster than Amoeba, but not as fast as many flagellated species.5. a. Why is the division of Paramecium cells called â€Å"transverse† fission? The plane of separation is transverse to the longitudinal axis.b. Why is transverse fission not a sexual process? it doesn't recombine genesc. What are the advantages and disadvantages of conjugation in Paramecium? disadvantages: conjugation requires more than one organism and is energy consuming advantage: creation of new genetic combinations6. a. What is the value or function of the rapid contraction stalk of Vorticella? avoid predationb. What is the probable function of the moving cilia of Vorticella? create water currents bringing food particles to the organism7. a. Is cytoplasmic movement of Physarum apparent? probably yesb. Is the movement in a particular direction? probably not, but on moist medium they may app arently move toward foodc. What is a possible function of cytoplasmic movement in Physarum? avoid light, find foodExercise 26 SURVEY OF KINGDOM FUNGI: MOLDS, SAC FUNGI, MUSHROOMS, AND LICHENS ANSWERS TO QUESTIONS1. a. Are hyphae present? ob. Are the cells motile? yes2. a. How many species of mold are on the bread? 2, 3, or 4b. Do any of the molds on the bread have hyphae modified as sporangiophores and sporangia? probably yesc. Is pigment distributed uniformly in each mycelium? If not, where is the pigment concentrated in each mold? No, pigment is usually concentrated in sporangia.d. What is the adaptive significance of spores forming on ends of upright filaments rather than closer to the protective substrate? to enhance distribution of released spores3. a. In what structure is the dark pigment of Rhizopus concentrated? sporangiab.Is Rhizopus reproducing sexually as well as asexually in the same petri dish? How can you tell? Yes (if students are provided with cultures with two strai ns); because sporangia as well as zygospores are visible.4. What is the relative size of Penicillium hyphae compared to Rhizopus hyphae? Penicillium hyphae are much smaller than Rhizopus hyphae.5. a. Do you see chains of yeast cells produced by budding? probably yesb. How is the structure of yeast hyphae different from that of molds? Yeast hyphae are greatly reduced to a chain of one or two cells, while molds are very long and multicellular. 6. What is the difference between dikaryotic and diploid cells? Dikaryotic cells have two distinct nuclei, each with a haploid (single) set of chromosomes; a diploid cell has one nucleus with a diploid (double set of chromosomes).7. How many spores would you estimate are present on the gills of a single cap of Coprinus? Remember that a prepared slide shows only a cross section. many, many thousands8. a. What is the value of photosynthetic algae to the growth of a fungus in a lichen? Algae conduct photosynthesis and produce an energy rich carbon source, (i. e. , glucose).b. Would you expect lichens to grow best in rural or urban environments? Why? best in rural environments because they are so sensitive to air pollutionExercise 27 SURVEY OF THE PLANT KINGDOM: LIVERWORTS, MOSSES, AND HORNWORTS OF PHYLA HEPATICOPHYTA, BRYOPHYTA, AND ANTHOCEROPHYTA ANSWERS TO QUESTIONS1. What are the functions of rhizoids? anchorage, possibly absorption2. What is the function of these pores? gas exchange3. How do the positions of the archegonium and antheridium relate to their reproductive function? Antheridia need to disperse sperm and are upright with pores on top of the antheridial disk; archegonia are protected under the surface of the archegonial disk.4. a. What is the function of the foot? nutrient transport from gametophyte to sporophyteb. Are spores haploid or diploid? haploidc. What is the functional significance of the response of elaters to moisture? dispersal of spores5. a. How many cells thick is the leaflet? one or twob. Is there a midrib? Vein? yesc. Are stomata or pores visible on the leaf surface? probably notd. How does the symmetry of a moss gametophyte compare with that of a liverwort gametophyte? Mosses are radially symmetrical and liverworts are bilaterally symmetrical. 6. a. How many times its own weight did the moss absorb? or more timesb. How does this compare with the paper towel? much greaterc. Why is Sphagnum often used in shipping items that must be kept moist? because it holds water so well7. Where is the egg located in the archegonium? egg is enlarged cell at base of neck8. Are sperm haploid or diploid? haploid9. Is the sporophyte more prominent in mosses or liverworts? mosses10. What is the adaptive significance of the seta of the sporophyte growing well above the mat of the gametophyte? better dispersal11. a. What process produces spores? meiosisb. Is the capsule haploid or diploid? diploid12. Can you think of any evolutionary implications of the similarity between a moss protonema and a filamentous green alga? both have similar form and live in similar habitat, which suggests that selective pressures for developing these structures may have been similarExercise 28 SURVEY OF THE PLANT KINGDOM: SEEDLESS VASCULAR PLANTS OF PHYLA PTEROPHYTA, LYCOPHYTA, PSILOPHYTA, AND SPHENOPHYTA ANSWERS TO QUESTIONS1.a. Which parts of the life cycle are haploid? gametophyteb. Which are diploid? sporophyte2.a. How many veins are present in each frond? usually 1 large veinb. What tissues compose a vein? ylem and phloemc. What is the function of the stalk? The blade? The pinnae? stalk—support; blade and pinnae—photosynthesis3.a. What is the function of an annulus? breaking point for opening sporangiumb. Are any spores in the sporangium? probably so4.a. Did the application of acetone cause the spores of the fern to disperse? probably yesb. How is the mechanism for spore dispersal in ferns similar to that of bryophytes? Moisture causes changes in cell (elater or annulus) shap e to release spores.5.a. Is the prothallium haploid or diploid? haploidb. Is the prothallium sporophyte or gametophyte? gametophyte6. a.What is the adaptive significance of having these structures on the lower surface of the prothallium rather than on the upper surface? protection from desiccationb. What is the adaptive significance of having sperm and egg produced at different times? discourages inbreeding7. How do Salvinia and Azolla differ from other ferns you've examined earlier? smaller, aquatic8. a. What type of branching characterizes Psilotum? dichotomousb. Are any roots present? noc. Are any leaves present? nod. Where are the sporangia? at end of short lateral branchese. Where does photosynthesis occur in Psilotum? stem9.a. Where are the leaves? n rings along stemb. What part of the plant is photosynthetic? stemc. Which part of the life cycle of Equisetum is dominant, the sporophyte or gametophyte? sporophyte10.a. How does strobili formation in Equisetum compare with Lycopo dium and Selaginella? sporangia of Lycopodium and Selaginella are on microphyllsb. How do elaters aid in the dispersal of spores? moves spores11. a. How could a rhizome be involved in asexual reproduction? produces new growth, which could be separated from parent plant (e. g. , via fragmentation), thereby resulting in a new individualb. How is a rhizome different from a rhizoid? hizome is underground stem; rhizoid is small, rootlike structurec. Does the rhizome have leaves? depends on specimen, but probably yesd. What is the shape and size of the leaves? thin, elongate, arranged in spiralse. What is the significance of this form of the leaves? intercept light for photosynthesisf. Is a midvein visible? yes g. What does the word â€Å"evergreen† mean? does not lose all of its leaves seasonallyh. Is â€Å"evergreenness† a good characteristic for classifying plants? Why or why not? No, unrelated plants are evergreen.12. a. How many sporangia occur on each sporophyll of Lyc opodium? oneb.Can you see why spores of Lycopodium are sometimes called â€Å"vegetable sulfur†? yesc. Why are the spores a good, dry lubricant? powdery; certain species produce some oild. Which is the dominant part of the Lycopodium life cycle, the sporophyte or gametophyte? sporophyte13. a. Are spores of Selaginella similar in size? nob. What is this condition called? heterosporousc. What is the functional significance of the difference in the appearance of dehydrated and rehydrated Selaginella? water conservation and survival during droughtd. Can you see why these plants are sometimes referred to as â€Å"resurrection plants†? yes