Post Traumatic Stress Disorder ( Ptsd ) Essay - 1991 Words

Post-Traumatic Stress Disorder is a disorder that is the result of a traumatic event. According to the national PTSD center in the U.S Department of Veterans Affairs, about 50% of women experience at least one trauma in their lives, traumas like Rape or child abuse are more common in women than in men. About 60% of men experience a trauma in their lives, traumas more related to physical assault, combat, disaster or witnessing a death. Post-Traumatic stress disorder can happen to anyone. In the United States about 8% of the population will have Post-Traumatic Stress Disorder at some point in their lives. A disorder similar to Post-Traumatic Stress disorder is Acute Stress Disorder the only difference is that a diagnosis for Acute Stress Disorder has to be given in the month following the traumatic event, for Post-Traumatic Stress Disorder to be diagnosed the symptoms have to be recurrent for at least a month after the traumatic event. Good examples are some cases of Post-Traumatic Str ess Disorder like Maria and Joe a rape victim and a veteran both diagnosed with Post-Traumatic Stress disorder their symptoms and treatment. Also a case study for suicides involving veterans from the Vietnam war and Somalia peace keeping conflict, 4 veterans diagnosed with PTSD that committed suicide analyzing their major life events and the psychological factors that could have contributed to the suicide. Post-Traumatic Stress disorder can happen to anyone, it isn’t rare. In the UnitedShow MoreRelatedPost Traumatic Stress Disorder ( Ptsd )990 Words   |  4 PagesPost-Traumatic Stress Disorder Post-traumatic stress disorder is a common anxiety disorder characterized by chronic physical arousal, recurrent unwanted thoughts and images of the traumatic event, and avoidance of things that can call the traumatic event into mind (Schacter, Gilbert, Wegner, Nock, 2014). About 7 percent of Americans suffer from PTSD. Family members of victims can also develop PTSD and it can occur in people of any age. The diagnosis for PTSD requires one or more symptoms to beRead MorePost Traumatic Stress Disorder ( Ptsd )1471 Words   |  6 PagesRunning head: POST-TRAUMATIC STRESS DISORDER 1 Post-Traumatic Stress Disorder Student’s Name Course Title School Name April 12, 2017  Post-Traumatic Stress Disorder Post-traumatic stress disorder is a mental disorder that many people are facing every day, and it appears to become more prevalent. This disorder is mainly caused by going through or experiencing a traumatic event, and its risk of may be increased by issuesRead MorePost Traumatic Stress Disorder ( Ptsd ) Essay1401 Words   |  6 PagesAccording to the Mayo-Clinic Post Traumatic Stress Disorder, commonly known as PTSD is defined as â€Å"Post-traumatic stress disorder (PTSD) is a mental health condition that s triggered by a terrifying event — either experiencing it or witnessing it. Symptoms may include flashbacks, nightmares and severe anxiety, as well as uncontrollable thoughts about the event† (Mayo Clinic Staff, 2014). Post Traumatic Stress disorder can prevent one from living a normal, healthy life. In 2014, Chris Kyle playedRead MorePost Traumatic Stress Disorder ( Ptsd )1198 Words   |  5 Pages Post-traumatic stress disorder(PTSD) is a mental illness that is triggered by witnessing or experiencing a traumatic event. â€Å"PTSD was first brought to public attention in relation to war veterans, but it can result from a variety of traumatic incidents, such as mugging, rape, torture, being kidnapped or held captive, child abuse, car accidents, train wrecks, plane crashes, bombings, or natural disasters such as floods or earthquakes(NIMH,2015).† PTSD is recognized as a psychobiological mentalRead MorePost Traumatic Stress Disorder ( Ptsd )1423 Words   |  6 Pages Mental diseases and disorders have been around since humans have been inhabiting earth. The field of science tasked with diagnosing and treating these disorders is something that is always evolving. One of the most prevalent disorders in our society but has only recently been acknowledged is Post Traumatic Stress Disorder (PTSD). Proper and professional diagnosis and definitions of PTSD was first introduced by the American Psychiatric Association(APA) in the third edition of the Diagnostic andRead MorePost Traumatic Stress Disorder ( Ptsd ) Essay1162 Words   |  5 PagesSocial Identity, Groups, and PTSD In 1980, Post Traumatic Stress Disorder (PTSD,) was officially categorized as a mental disorder even though after three decades it is still seen as controversial. The controversy is mainly founded around the relationship between post-traumatic stress (PTS) and politics. The author believes that a group level analysis will assist in understanding the contradictory positions in the debate of whether or not PTSD is a true disorder. The literature regarding this topicRead MorePost Traumatic Stress Disorder ( Ptsd ) Essay1550 Words   |  7 PagesPost Traumatic Stress Disorder â€Å"PTSD is a disorder that develops in certain people who have experienced a shocking, traumatic, or dangerous event† (National Institute of Mental Health). Post Traumatic Stress Disorder (PTSD) has always existed, PTSD was once considered a psychological condition of combat veterans who were â€Å"shocked† by and unable to face their experiences on the battlefield. Much of the general public and many mental health professionals doubted whether PTSD was a true disorder (NIMH)Read MorePost Traumatic Stress Disorder ( Ptsd )944 Words   |  4 Pageswith Post-traumatic stress disorder (PTSD Stats). Post-Traumatic Stress Disorder is a mental disorder common found in veterans who came back from war. We can express our appreciation to our veterans by creating more support programs, help them go back to what they enjoy the most, and let them know we view them as a human not a disgrace. According to the National Care of PTSD, a government created program, published an article and provides the basic definition and common symptoms of PTSD. Post-traumaticRead MorePost Traumatic Stress Disorder ( Ptsd )1780 Words   |  8 Pagesmental illnesses. One such illness is post-traumatic stress disorder (PTSD). Post-traumatic stress disorder is a mental illness that affects a person’s sympathetic nervous system response. A more common name for this response is the fight or flight response. In a person not affected by post-traumatic stress disorder this response activates only in times of great stress or life threatening situations. â€Å"If the fight or flight is successful, the traumatic stress will usually be released or dissipatedRead MorePost Traumatic Stress Disorder ( Ptsd )1444 Words   |  6 PagesYim – Human Stress 2 December 2014 PTSD in War Veterans Post Traumatic Stress Disorder (PTSD) is a condition that is fairly common with individuals that have experienced trauma, especially war veterans. One in five war veterans that have done service in the Iraq or Afghanistan war are diagnosed with PTSD. My group decided to focus on PTSD in war veterans because it is still a controversial part of stressful circumstances that needs further discussion. The lifetime prevalence of PTSD amongst war

Essay about Analysis of Food Inc. - 944 Words

Food Inc. and the Media use the tools of social psychology to persuade and make its point. Documentary films are influential media tools that can be used to inform, persuade, and convict the public on many social topics on a continuous spectrum of troubles and struggle of the world. Some well-made documentaries have made impacts on people who watch them, and this is what the movies are they meant to do. The filmmakers have done their job if the movie has given a voice to a problem and a face to the issue that needs to be known. Eric Schlosser one of the film’s co-producer said it best in Food Inc., â€Å"The industry doesn’t want you to know the truth about what you’re eating, because if you knew, you might not want to eat†¦show more content†¦I learn so much about a subject that I may have heard about from the television or radio news, a newspaper, in a conversation or even in the classroom. I have spent hours on a subject matter that I may have n ever heard about. This is a part of my self-concept of finding me. The factor that influences my self-concept is, the social identity I am forming (Myers, 2010). I am searching for a more educated identity that cares about where my food comes from, who grew it, and what was used to help it grow. Food Inc. was made I trust to inform the public about a social dilemma in our country, which the government and â€Å"a small group of multinational corporations who control our entire food system from seed to the supermarket; they’re gaining the control of food† (Roush, 2008). Farmers who are contracted with these corporations are raising chickens in coops with no windows, no room to move they are being raised in half the time due to growth hormones. Scientists have changed the chicken’s bodies to have bigger breasts. These animals barely exist to produce food for disengaged and uninformed people. This film was a hard film to watch, because I can no longer claim t o live in my ignorant bliss. The person that I am, the self I have been looking for has to make a change, for me, and my family. I need to respond toShow MoreRelatedAnalysis of Food Inc.1594 Words   |  7 PagesStudies have shown that many people all over the world are unaware of where their food comes from. When an individual goes to consume a food product, he or she could be completely oblivious to the methods of manufacture, processing, packaging or transportation gone into the production of the food item. It is often said that ‘ignorance is bliss’ – perhaps this rings true in the case of food, its origins and its consumption as well. In such a scenario, eating well could seem like an unlikely prospectRead MoreAnalysis of Kraft Foods Inc.4016 Words   |  17 PagesAnalysis of Kraft Foods Inc. Executive Summary The following report is an evaluation of Kraft Foods Inc. from both an internal and external perspective using fundamental and technical analysis. Kraft Foods Inc. is a worldwide food company operating within the Packaged Foods industry. With annual revenues in excess of $49 billion they are the second largest firm in the industry, controlling 8% of the total market. Fundamental analysis reveals that Kraft is a healthy company with growing revenuesRead MoreAnalysis Of Conagra Foods, Inc.2169 Words   |  9 PagesConAgra Foods, Inc. has owned and operated the subsidiary Watts Brothers Farms for approximately 8 years. Watts Brothers Farms consists of a 20,000 acre farm producing rotational vegetable crops, a 2,750 head dairy farm, a 150 million pound frozen vegetable processing facility, and a cold storage/custom packaging center. Watts Brothers Farms is a vertically integrated sustainable farming operation. The farm unit is primarily focused on the production of potatoes, sweet corn, peas, and carrotsRead MoreMovie Analysis : Food Inc1897 Words   |  8 PagesFilm Analysis Paper- Food Inc Food Inc is a documentary directed and written by Robert Kenner along with co-writers Elise Pearlstein and Kim Roberts in 2008 to discuss the current origin of food production in the United States. This film takes viewers inside the slaughter houses, farms and factories that produce American food to show how food in the 21st century is no longer organically grown and raised for healthy eating. Instead it is now controlled, mutilated, and produced in large quantitiesRead MoreEssay on Food Inc - Rhetorical Analysis1329 Words   |  6 PagesRhetorical Analysis – Food Inc. ‘Food Inc’, is an informative, albeit slightly biased, documentary that attempts to expose the commercialisation and monopolisation of the greater food industry. The film attempts to show the unintended consequences resulting from this, and for the most part this technique is very effective; however there is an overreliance on pathos in lieu of facts and statistics at times. ‘Food Inc’ starts off with a camera moving slowly through supermarket shelves withRead MoreAnalysis Of Watching Food Inc.1396 Words   |  6 PagesWatching Food Inc. movie was a deception and a horrifying experience on what is happening in the food industry in the U.S. After spending time on some of resources like The U.S. Food and Drug Administration on food safety, The National Food Processors’ Association that are in place to protect farmer’s industry and food consumers, to find out these agencies like are not protecting farmers nor are protecting food consumers in the U.S; and to learn about big corporations like Tyson Foods, Monsanto thatRead MoreMarketing Analysis : Food Inc.1637 Words   |  7 Pagesthey need to do to stay ahead of the competition. So unfortunately exchanges like this come with the territory and it happens across all industries including the food industry. In the 2008 documentary Food Inc. examples of duped exchanges within the f ood industry are on display, and while I believe there is no place for them within the food industry or the market for that matter it happens anyway due to consumers being led astray by companies. When consumers walk into the grocery store it is difficultRead MoreFood Inc Film Analysis1365 Words   |  6 PagesThe way we eat has changed more in the last 50 years than in the previous than in the previous 10 thousand. - Michael Pollan (Food Inc). The film entitled Food Inc is a documentary piece by Robert Kenner on the Food industry in America and the History which Lead the industry to where it is now and everyone who is affected by these changes. As a 22 year old college athlete it has never been at a more crucial time to keep track of my meals throughout the day. After a two hour training session the clockRead MoreSwot Analysis Fist in Show Pet Food Inc1492 Words   |  6 PagesRunning head: SWOT ANALYSIS - FIST IN SHOW PET FOOD INC SWOT Analysis - Fist in Show Pet Food Inc Marketing Strategies SWOT Analysis - Fist in Show Pet Food Inc Fist in Show Pet Food Inc SWOT Analysis Internal Strengths and Weaknesses SWOT | Sales Force | Marketing Mix | Advertising | R/D | Segmentation | Offerings | Internal Strengths | Administrators and sales personnel at First in Show Pet Foods, Inc have acquired the necessary knowledge and experience from being a majorRead MoreRhetorical Analysis Of The Documentary Food, Inc, By Robert Kenner1040 Words   |  5 PagesRhetorical Analysis of The Documentary Food, Inc. Food Inc, is a documentary made by Robert Kenner, based on the book Fast Food Nation, written by Eric Schlosser. Kenner uses a variety of strategies in order to convey the message that our food system harms our health, workers, animals, and the environment, and expresses that a great deal of information is hidden from consumers. The filmmaker uses juxtaposition and emotional imagery, personal interviews, as well as particular cinematic techniques

Ch 18 Free Essays

Chapter 18 Ethers Epoxides; Thiols and Sulfides Assigned Reading from McMurry: Read Sections 18. 1 through 18. 9; not responsible for â€Å"Focus on †¦ Epoxy Resins Adhesives, pp. We will write a custom essay sample on Ch 18 or any similar topic only for you Order Now 697-698). Recommended Problems from McMurry: 18. 1a-e;18. 18. 2;18. 3a-d; 18. 4; 18. 5a-d; 18. 6a-b; 18. 7a-b; 18. 8; 18. 9; 18. 10; 18. 11; 18. 12a,b; 18. 13a,b; 18. 14a-c; 18. 16a-f; 18. 17; 18. 18; 18. 19a-c; 18. 20; 18. 21; 18. 22; 18. 23a-e; 18. 24a-I; 18. 25a-f; 18. 26a-d; 18. 27; 18. 28; 18. 29ad; 18. 30a-e; 18. 31; 18. 32; 18. 33; 18. 34; 18. 35a-d; 18. 36; 18. 37; 18. 38; 18. 39; 18. 40a,b; 18. 41a-d; 18. 2; 18. 43; 18. 44; 18. 45; 18. 45; 18. 46; 18. 47; 18. 48; 18. 49; 18. 51; 18. 52; 18. 53; 18. 54; 18. 551-e; 18. 56; 18. 57; 18. 58a-b; 18. 59a-b; 18. 60; 18. 61. 18. 1 Names and Properties of Ethers Method A: Simple ethers; alphabetize if two organic substituents. CH3–CH2–O–CH2–CH3 Diethyl ether Methyl propyl ether O CH3–CH2–CH2–O–CH3 CH3 Methyl phenyl ether SP 18. 01 Provide systematic names for the following ethers. CH3–CH2–O–CH2–CH2–CH2–CH3 O SP 18. 02 Provide structures for the following systematic names. Systematic name: Isopropyl phenyl ether Systematic name: Cyclohexyl ethyl ether Method B: Other functional groups present, ether component is an â€Å"alkoxy† substituent. Alkoxy examples: methoxy -OCH3, ethoxy -OCH2CH3, propoxy -OCH2CH2CH3, etc. O C H3 O CH3 O C H3 para-Dimethoxybenzene 3-Methoxy-1-cyclopentene SP 18. 03 Provide systematic names for the following complex ethers. OCH3 O CH2CH3 Cl SP 18. 04 Provide structures for the following systematic names. Systematic name: meta-Bromopropoxybenzene Systematic name: 1-Isopropoxycyclopentene 18. 2 Synthesis of Ethers The Williamson Ether Synthesis R + O an alkoxide C X R SN2 an alkyl halide methyl 1o best; X = Cl, Br, I, OTos O C ether product Example: O Na + Sodium phenoxide CH3 Br O CH3 Phenyl methyl ether (anisole) + Na Br + X SP 18. 05 Complete the following reactions. CH3 CH3 C O Na + CH3 I + Na I CH3 CH3 CH3 C CH3 I + Na O CH3 + Na I SP 18. 06 Provide the suitable alkoxide and alkyl halide necessary to produce 2-ethoxy-2-methyl butane in good yield. CH3 CH3 CH2 C O CH3 CH2 CH3 + Na Br 8. 4 Oxymercuration Intermediates †¢ For laboratory-scale hydration of an alkene †¢ †¢ Use mercuric acetate in THF followed by sodium borohydride Markovnikov orientation – via mercurinium ion Alkoxymercuration of Alkenes General Reaction: R C C 2) NaBH4 H C R Ether Alkene RO Step #1 RO C 1) Hg(OAc)2, ROH H g OA c C C Step #2 R + HOAc Markovnikov addition SP 18. 07 Complete the following reactions by displaying the final major organic product. H C 1) Hg(OAc)2, CH3OH H C 2) NaBH4 H CH3 CH3 C C H CH3 1) Hg(OAc)2, CH3OH 2) NaBH4 SP 18. 08 Specify the alkene and alcohol needed to produce the following ether. Alcohol OCH2CH3 1) Hg(OAc)2, CH3 2) NaBH4 Alkene 18. 3 Reactions of Ethers: Acidic Ether Cleavage General Reaction: HX C O C C OH + X C (strong acid) Ether Alcohol Alkyl halide SP 18. 09 Predict the product for the following ether-cleavage reaction. CH3 CH3 C O CH3 HBr CH2CH3 8. 4 Reactions of Ethers: Claisen Rearrangement O OH 1,3 O to C shift Thermodynamically more stable o 250 Allyl phenyl ether C9H10O ortho-Allyl phenol C9H10O Mechanism (involves six-membered transition state): 1 O TS 2 3 1 O 2 H keto-enol tautomerization 3 O H SP 18. 10 Predict the structure for the following Claisen rearrangement. O o 250 2-Butenyl phenyl ether C10H12O 18. 5 Cyclic Ethers: Epoxides (2 methods) General Reaction 1: O C C + R Alkene C O O O O C H A peracid C An epoxide R C O A carboxylic acid Specific Example 1: O Cl C O O H m-CPBA o H O O + CH2Cl2, 25 C H 1,2-Epoxycycloheptane Cl H C O H 18. Cyclic Ethers: Epoxides (2 methods) General Reaction 2: C OH X2, H2O C C C X A halohydrin Alkene O NaOH H2O C + H2O + NaX C An epoxide Review Section 7. 3 Specific Example 2: H CH3 C C H CH3 cis-2-Butene Br2 H2O H CH3 Br C OH C H CH3 NaOH H2O O HC CH3 C H + H2O + NaBr CH3 meso-2,3-Dimethyl-oxirane (or cis-2,3-epoxybutane) SP 18. 11 Fill in the appropriate intermediates showing the correct stereochemistry. H CH3 C C CH3 Br2 NaOH H H2O H2O trans-2-Butene + H2O + NaBr 18. 6 Reactions of Epoxides: Ring-Opening General epoxide structure: O C Since each atom is sp3 there is considerable angle strain in the epoxide ring-system. C Acidic Conditions: Epoxide opening under acidic conditions (aqueous acid) yields 1,2-diols General Reaction: H H O O C H C HO C H2O An epoxide C OH A 1,2-diol (glycol) H O C H C + O H H O C + C H O H H O H Specific Example (using symmetrical epoxide): H + H H3O OH H2O OH O H H trans-1,2-Cyclohexanediol SP 18. 12 Predict the correct structure of the product diol showing the correct stereochemistry. O H CH3 C C CH3 H trans-2,3-epoxybutane H3O+ H2O Note: Epoxide opening under anhydrous acidic conditions yields halohydrins. Specific Example (2 ° and 1 ° carbons): o 1 carbon o 2 carbon O CH3 H C C H H 1,2-Epoxypropane OH HCl Et2O CH3 C Cl CH2 Cl + CH3 H 1-Chloro-2-propanol (90%) C CH2 OH H 2-Chloro-1-propanol (10%) SP 18. 13 Using the above model predict the major halohydrin. O H C H C HCl H Et2O O H C C H H HCl OH C Et2O H Cl CH2 Cl + C CH2 OH H Explanation: In cases where a 2 ° carbon and a 1 ° carbon form the epoxide ring, the major halohydrin product will be the one where the incipient alcohol is 2 ° and the halide is 1 °. Upon protonation of the epoxide oxygen the halide ion simple attacks the less-hindered 1 ° carbon with a greater frequency to give the major regioisomer. Specific Example (3 ° and 1 ° carbons): SP 18. 4 Using the above model predict the major halohydrin. Circle one. O C C H H HCl OH C Et2O + C H Cl Cl H C OH C H H Explanation: In cases where a 3 ° carbon and a 1 ° carbon form the epoxide ring, the major halohydrin product will be the one where the incipient alcohol is 1 ° and the halide is 3 °. Upon protonation of the epoxide oxygen the halogen attacks the more-stabilized (same as moresubstituted) carbon atom to give the major regioisomer described. Basic Conditions: Note: Nucleophile will always attack least-hindered position. Specific Example: o 3 carbon 1o carbon O CH3 CH3 C C H H OH NaOH H2O, ? CH3 C CH2 OH CH3 -Methyl-1,2-propanediol SP 18. 15 Predict the structure of the 1,2-diol from the following reaction. O C C H H NaOH H2O, ? Reaction with Grignard Reagents: O CH3 CH3 C C H H OH 1) CH3CH2MgBr, Et2O 2) (aq) NH4Cl CH3 C CH2 CH3 CH2 CH3 SP 18. 16 Predict the structure of the organic product from the following Grignardepoxide reaction. O H C C H H 1) CH3MgBr, Et2O 2) (aq) NH4Cl Reaction with a 1 ° amine: O H C OH CH2 H H2NCH2CH2CH3 C CH2 N CH2 CH2 H Reaction with a 2 ° amine: O H C OH H H3C CH2 + N H3C H C CH2 N CH3 CH3 CH3 SP 18. 17 Predict the structure of the epoxide and amine needed to generate the amino alcohol shown to the right. OH + CH3 C CH3 Epoxide Amine CH2 N H 18. 7 Crown Ethers †¢ Large rings consisting of repeating (-OCH2CH2-) or similar units †¢ Named as x-crown-y – x is the total number of atoms in the ring – y is the number of oxygen atoms – 18-crown-6 ether: 18-membered ring containing 6 oxygen atoms †¢ Central cavity is electronegative and attracts cations 18. 8 Thiols and Sulfides †¢ Thiols (RSH), are sulfur analogues of alcohols – Named with the suffix -thiol – SH group is called â€Å"mercapto group† (â€Å"capturer of mercury†) Thiols: Formation and Reaction †¢ From alkyl halides by displacement with a sulfur nucleophile such as –SH The alkylthiol product can undergo further reaction with the alkyl halide to give a symmetrical sulfide, giving a poorer yield of the thiol Sulfides †¢ Sulfides (RSR? ), are sulfur analogues of ethers – Named by rules used for ethers, with sulfide in place of ether for sim ple compounds and alkylthio in place of alkoxy Using Thiourea to Form Alkylthiols †¢ Thiols can undergo further reaction with the alkyl halide to give dialkyl sulfides †¢ For a pure alkylthiol use thiourea (NH2(C=S)NH2) as the nucleophile †¢ This gives an intermediate alkylisothiourea salt, which is hydrolyzed cleanly to the alkyl thiourea Oxidation of Thiols to Disulfides Reaction of an alkyl thiol (RSH) with bromine or iodine gives a disulfide (RSSR) †¢ The thiol is oxidized in the process and the halogen is reduced Sulfides †¢ Thiolates (RS? ) are formed by the reaction of a thiol with a base †¢ Thiolates react with primary or secondary alkyl halide to give sulfides (RSR’) †¢ Thiolates are excellent nucleophiles and react with many electrophiles Sulfides as Nucleophiles †¢ Sulfur compounds are more nucleophilic than their oxygen-compound analogues – 3p valence electrons (on S) are less tightly held than 2p electrons (on O) â⠂¬ ¢ Sulfides react with primary alkyl halides (SN2) to give rialkylsulfonium salts (R3S+) Oxidation of Sulfides †¢ Sulfides are easily oxidized with H2O2 to the sulfoxide (R2SO) †¢ Oxidation of a sulfoxide with a peroxyacid yields a sulfone (R2SO2) †¢ Dimethyl sulfoxide (DMSO) is often used as a polar aprotic solvent 18. 9 Spectroscopy of Ethers †¢ Infrared: C–O single-bond stretching 1050 to 1150 cm? 1 overlaps many other absorptions. †¢ Proton NMR: H on a C next to ether O is shifted downfield to ? 3. 4 to ? 4. 5 – The 1H NMR spectrum of dipropyl ether shows this signal at ? 3. 4 – In epoxides, these H’s absorb at ? 2. 5 to ? 3. 5 in their 1H NMR spectra Carbon NMR: C’s in ethers exhibit a downfield shift to ? 50 to ? 80 Let’s Work a Problem When 2-methyl-2,5-pentanediol is treated with sulfuric acid, dehydration occurs and 2,2dimethyltetrahydrofuran is formed. Suggest a mechanism for this reaction. Which of the t wo oxygen atoms is most likely to be eliminated and why? Answer First, there is protonation of the 3? –OH group, then a 3? carbocation is formed via loss of H2O. Then there is a nucleophilic attack of the carbocation by the 2nd –OH group. The 3? OH group is the one eliminated in all likelihood because its removal involves the formation of the more stable 3? carbocation. How to cite Ch 18, Papers

Living with a host family Essay Example For Students

Living with a host family Essay There are several reasons which make me believe that living with a host family is the best chose when studying abroad. Host family is a family which a student pays for living with-often when studying abroad. First, Practice a foreign language with native speakers in their day-to-day make students learns the language faster. Improving his English is also one of the benefits. Second, a guest student will learn a lot of new things and skills by share in the daily life and experiences of the family and immerse himself in that familys culture. Also he will learn how to be responsible by depending upon him. Other skill is communicated with different people with different culture by introducing him to families, friends, and neighbors. On the other hand, some people may say that a student who lives with a host family will feel homesick. In fact, most host families make their foreign students a part of the family by given the opportunity to share in conversation and daily activities. So when students are sick or perhaps simply homesick, a loving host family, ready to provides advice and offer moral support for the student who would otherwise be alone. Lastly it can be seen clearly that Living abroad with a host family can be very, very good. Student can make new friends, see new places and immerse himself thoroughly in a new culture complete with local languages and slang. It also can give students experience and teach him how to be responsible. Living with a host family is full of advantage.