Monday, September 30, 2019

Positive Psychological Effects on Exercise

â€Å"Positive Psychological Effects of Exercise† Kelsey Leavitt Thomas G. Plante, C. C. (2006, April 10). Psychological Benefits of Exercise Paired with Virtual Reality. Retrieved from http://web. ebscohost. com. ezproxy. tntech. edu/ehost/detail? vid=5&sid=2e69bd11-298b-4674-98ca8d42db4513b4%40sessionmgr110&hid=126&bdata=JnNpdGU9ZWhvc3QtbGl2ZQ%3d%3d#db=pdh&AN=2006-04110-006 Introduction Numerous studies showed that a daily routine of exercise made people live longer lives, had healthier bodies, and were in a more positive psychological state than the people who did not perform exercise as part of their lifestyle.Majority of my family members were overweight and I witnessed many psychological effects that took a toll on their bodies and interfered with their work routine and also their social life. On the other hand, when I reached a certain age in my life, I knew that I did not want to have the health problems some of my family members did and decided to make exercise part o f my daily routine to decrease the negative psychological effects that it could have had on myself.Many people used the excuse; I do not have time for exercise or I didn’t have any money for a gym membership. To me, this was just an excuse because anyone can take thirty minutes a day and go for a walk through the park or jog through the neighborhood, which cost no money at all. â€Å"Research demonstrated that individuals who exercised with others, that involved virtual reality stimulation, or getting feedback aimed at improved self efficiency and enjoyment, greater increase in stress reduction, mood, and well-being, and reduced anxiety and depression† (Plante 1).In the database I researched, a sample of 112 psychology students participated in a study designed to measure momentary mood states which included, energy, calmness, tension, and tiredness. The participants in the exercise experienced the lowest level of tiredness. Overall, â€Å"this study suggested that the combination of virtual reality and exercise improved some of the positive psychological effects of exercise compared with virtual reality or exercise alone† (Plante 1). Purpose The purpose of this article was to investigate the role of virtual reality on the psychological benefits of exercise.The article showed forty-seven male and sixty-five female psychology students who participated in a study and were asked to complete the AD-ACL questionnaire which measured state energy, calmness, tiredness, and tension. â€Å"It was predicted that when virtual reality was paired with exercise, it would positively influence the mood benefits of exercise† (Plante 1). Participants were then randomly assigned to one of three conditions: a twenty minute brisk outdoor walk, combined virtual reality with walking on a treadmill, and virtual reality without exercise condition. Among all participants, there were no significant effects on energy, calmness, or tiredness. However, there were significant effects for tension† (Plante 1). The results of this study were determined by running a series of sample t-tests, which concluded a p-value that clarified whether the test had a significant effect or a non-significant effect. I learned from my adaptive class, that having a p-value less than 0. 5 is significant and anything above that is non-significant, which is how I determined the results from reading the chart of scores from this study. The results suggested support from the hypotheses as virtual reality did boost positive mood benefits when paired with exercise† (Plante 1). As mentioned earlier, the exercise environment contributed to psychological benefits of exercise by affecting well-being, confidence, enjoyment, mood, and self-efficiency. Problem A quote that I like to live by stated, â€Å"One can talk the talk, but can one walk the walk†? I believe that this had a lot to do with the problems with exercise. Despite all the physical and psychol ogical benefits associated with exercise, exercise involved a risk of serious injury.Exercise related injuries consisted of pulled muscles, sprains, strains, fractures, and dislocations. Individuals that were out of shape, failed to wear correct shoes, or improper use of the exercise equipment were more likely to be injured during exercise. Another problem with exercise was obsession. Believe it or not, one can exercise too much, which caused more harm than good mentally. Excessively exercising can cause one’s body to burn out, which had an increased risk of injury.If an individual became obsessive about their appearance, it would lead them to poor self-esteem and developed into a bad attitude about the psychological purpose of exercise. Solution There were many ways for individuals of all ages and sizes to improve and help cope with the psychological problems of exercise. Wearing proper protective equipment, proper clothing and shoes, and even having a gym owner show you the proper way to use their exercise equipment are all ways that helped reduce the risk of injury involved with exercise today.Also, creation of a comfortable, proper daily exercise routine reduced the risk of an individual becoming burnt out or becoming obsessive with exercise. Lastly, another solution to the psychological effects of exercise is the production of endorphins. Endorphins are produced from exercise and have relieved pain, stress, and enhanced the immune system. Based off the research, the environment that an individual chose to exercise in helped with the psychological benefits of exercise as well.The results from this article demonstrated that indoor  exercises  were more relaxing. An indoor environment proved to be more calming because it was an enclosed and secure area, and there were minimal distractions. Furthermore, â€Å"our findings suggest that an individual's decision to workout indoors or outdoors could be influenced by whether he or she is attempted to r elax or energize† (Plante 1). For example, one chose to run outside in the morning to increase energy levels or one chose to run indoors in the evening to wind down and decrease tension before bed.

Sunday, September 29, 2019

Dickens uses language Essay

When Mrs Gradgrind passes away in chapter nine, Dickens uses language to create sadness. Victorians loved sadness and tragedy in books and the portrayal of her death is done very emotionally. She is firstly described in the chapter as â€Å"helpless† and â€Å"feeble† to which the reader empathises with her. All people hate to see people they love and cherish grow old and weak and Dickens is brilliant in displaying the image of this. â€Å"The poor lady was nearer truth then she ever had been† This shows how Dickens disliked the utilitarian system, stating that Mrs Gradgrind’s nearest point of truth was on her death bed. As well as showing Dickens’s view, it also saddens the reader to know how close to death she is. On being told that â€Å"Lady Bounderby† had arrived, she retorted that â€Å"she had never called Bounderby by that name since he married Louisa† and that her choice of name for him was â€Å"J†. This will take the reader back to when she had no idea what to call him, and the memory is a nice one which again makes it sadder that she is dying. It also shows that she has not changed and is still the woman she used to be. She seems to â€Å"have no pulse†, but when Louisa kisses her hand, she can see â€Å"a thin thread of life† left in her. This description is again emotional as it shows how little life there is left in Mrs Gradgrind. Within the conversation between Louisa and her mother, Mrs Gradgrind often goes very â€Å"silent† for periods of time and has an â€Å"awful lull on her face, like one who was floating away on some great water† and â€Å"content to be carried down the stream†. This clever piece of descriptions meaning is that Mrs Gradgrind is slowly allowing herself to be carried into the â€Å"abyss† of death. But Louisa â€Å"recalls her† to ask what it was she wanted to speak to her about. The use of this river terminology is used again as Louisa again tries to stop her mother from â€Å"floating away†. Mrs Gradgrind is troubled because of what Louisa has not learned. She has learnt all the â€Å"ologies† from â€Å"day until night† but there is â€Å"something that her father missed,† She asked Louisa for a pen but â€Å"even the power of relentlessness had gone†. Even so, she â€Å"fancied that her request had been complied with and that the pen she could not have was held in her hand†. From this she began to â€Å"trace upon her wrappers†. It is very sad to see how Mrs Gradgrind is finally seeing the truth and wants Louisa too to see it but she cannot tell her and â€Å"the light that had always been so feeble and dim behind the weak transparency, went out† The figurative language used to describe both her weakness and death creates a solemn, melancholy surrounding and although she was never made to be a character the reader was so fond of, it is still saddening that she has passed away. It ends with a quote of religious terminology from the Psalm, Mrs Gradgrind â€Å"emerged from the shadow in which man walketh and disquieteth himself in vain†. This quote has a definite platonic reference to it as in Plato’s analogy of the cave, the prisoners who have seen shadows all their lives (which symbolise the visual world) needed to escape from the illusion created by their senses and find the truth. Throughout this section of the book, Mrs Gradgrind is said to be â€Å"closer to the truth then ever before† and â€Å"emerged from the shadow† so the Platonic reference is defiantly there. Mrs Sparsit resented Louisa from the moment she accepted the proposal from Mr Bounderby. It had been her plan all along to marry Mr Bounderby but this had been taken from her and her envy towards Louisa was immense. In chapter ten, Mrs Sparsit’s envy and grief are shown to be getting out of control and she, in her mind â€Å"erects a mighty staircase† that she believes Louisa to be on. At the bottom is a â€Å"dark pit of shame and ruin† and â€Å"down those stairs, from day to day and hour to hour, she saw Louisa coming†. Her physiological instability can be seen as she becomes obsessed with this ides, â€Å"it became the business of Mrs Sparsit’s life, to look up at her staircase, and to watch Louisa coming down†. If Louisa had once turned back, â€Å"it might have been the death of Mrs Sparsit in spleen and grief†. Mr Harthouse was a big part of this scheme, as he seemed to be â€Å"wooing† Louisa and the more time she spent with him, the closer she got to the bottom. â€Å"Mrs Sparsit had no intension of interrupting the descent† and was â€Å"eager to see it accomplished†. â€Å"She kept her wary gaze upon the stairs, and seldom so much as darkly shook her light mitten at the figure coming down. This scene does not bring sadness to the reader, but instead a certain amount of empathy to Louisa. She seems to be in the crossfire of everyone yet she is one of the most innocent of all. As she has rarely experienced emotions due to her â€Å"ology† filled bring up, she does not know how to react to Mr Harthouse who except in kindness as she believes he is being kind and honest to her. Yet his plan is to seduce her, and this is not out of love or passion, but to give him a challenge to fulfil. Mrs Sparsit wants her to fall into a pit of â€Å"shame and ruin† out of her own jealousy yet again, Louisa has no knowledge of this and has done nothing wrong to provoke it. There is a definite repetition throughout the chapter of Louisa’s â€Å"downfall† from the top to the bottom of the stairs which shows that, although patient, Mrs Sparsit is in no way stable and is becoming more and more addicted to this allegorical image in her mind. She watches Louisa like a hawk, waiting for her to make a mistake and get â€Å"nearer and nearer to the bottom†. In chapter twelve, Louisa goes home to seek her father. The chapter is bares huge turning points in the book as it marks the spark of emotion ignite in Louisa and Mr Gradgrind see the error of his system. The storm outside creates a pathetic fallacy with the mood inside the room. Louisa is described as â€Å"dishevelled†, â€Å"defiant† and â€Å"despairing† which is a shock as she has never had such vast emotive descriptions until then in the book. She first states to her father that â€Å"he has trained her from the cradle,† It is sad to see that she uses the word trained instead of loved or cherished as it makes her sound more like a dog then a daughter to him. She then bursts out with â€Å"I curse the hour in which I was born to such a destiny†. Her emotions have been unleashed and she is now angry, in despair and confused of what to do. She is dishevelled and has returned home to question her father on her life and its meaning. This is not sad for the reader, but it is very traumatising for Louisa which again creates empathy for her as she has finally realised the error in how she has been brought up. She asks him â€Å"Where are the graces of my soul? Where are the sentiments of my heart? What have you done O father, what have you done with the garden that should have bloomed once?† This metaphoric language shows her outburst of imagination and her exercise of â€Å"fancy†. She is asking him where is the love and emotion she does not have, and what he has done to stop her â€Å"strive against every natural prompting that has arisen in her heart†. Mr Gradgrind is â€Å"so unprepared† that he has difficulty answering and when he does, it is only to say â€Å"Yes, Louisa†. She goes on to say that she does not â€Å"reproach† him, as â€Å"what he has never nurtured in her, he has never nurtured in himself†. This creates a lot of respect and empathy for her as she is not condemning her father after all the years of no emotion and too much learning. It can be seen that this strive to teach him his errors is making an effect as he â€Å"bows his head upon his hand and groans aloud† and calls her â€Å"poor child†, realising the mistakes he has made. She asks him whether he would have â€Å"doomed her† to a life of loneliness or â€Å"robbed her† of how she should have been had he nurtured her differently if he could see how she would turn out. She then states that if he had ignored and hated her, how better off she might have been as she would have been â€Å"free†. She has been won over to the world of imagination and fancy. Throughout the chapter, he moves to support her as she is letting herself out and he actually begins to give her attention and love as a good father should. It is ironic that his child who he has taught his system to is the child who shows how insensible it really is. To conclude, Dickens uses language and dramatic disasters to create sadness throughout the second book. In 1854, the time at which the book was written, people loved romantic tragedy and trauma which the second book has with both Rachel and Stephan, and Mr Harthouse and Louisa. The death of Mrs Gradgrind is another tragedy which Dickens portrays well and is very emotional. He uses the metaphor of life as a river in which we all just drift down until the end and these uses of language as well as others he uses throughout the book are methods which Dickens uses to sadden the reader. The final scene in which Louisa lets out her emotions upon her father, condemning the day she was born and questioning his motives which lead her to be so dispassionate.

Saturday, September 28, 2019

Catfish and Mandala

The American novelist Thomas Wolfe once wrote, â€Å"You can't go home again†. Andrew Pham proved that wrong. â€Å"Andrew X. Pham, who came to the United States when he was ten years old as a ‘boat person,' returned to Vietnam 20 years later on an extended bike trip in order to understand better his cultural identity† (Pearl 208). Despite the fact that Pham, like so many others of his generation, were forced to flee Vietnam, somehow they never lost the sense of identity with the homeland they only remembered as children. Pham, as an insightful writer, decided it was time for him to find out if there still exists a bridge between him as a Viet-American and his homeland. Pham travels to Vietnam to search for his roots in hopes to construct his identity. For Pham in the search of his identity he flies to Vietnam to ride his bike, and also to find his roots. As he first gets off the airplane he is already is immediately receiving dirty aware of others who looks at him disdainfully because he is a â€Å"viet-kieu† which means foreign Vietnamese. Then as he is at the baggage claim while retrieving his luggage, to his amazement he sees the workers tear up his bike that had been stuck in the claim belt. That hit a soft spot in him because that bike had been through so much with Pham. From then on his impressions of Vietnamese people were bad, He developed a negative impression of Vietnamese people and he automatically thought of them as a lower class persons than Americans human than he was. Pham in order to go back to his roots needs to humble himself as a true Vietnamese. Then he will understand his identity and appreciate his culture.

Friday, September 27, 2019

Accounting Information System in Companies in Australia Research Paper

Accounting Information System in Companies in Australia - Research Paper Example The increasing role of AIS in strategic decisions of companies has drawn the attention of management and researchers towards the role of AIS in companies. Toluyemi (1999) argues that accounting information is important for the management of an organisation just like any large stock holdings therefore, to make informed decisions through this information, it should be distinctively stored, updated, retrieved and disseminated. Shareia (2006) adopted a different approach and he studies the present and potential role of AIS in improving the developments in developing economies especially in Libya and he argues that to achieve the goal of developments in the countries like Libya, development and use of accounting information systems and assessment of the factors affecting them is important. Hall (2001 cited in Valdez, 2008) argues that accounting information system which is well organised will make everyday business relatively easier and more effective. Carlson and Parker (1998) emphasises on the importance of computerised accounting information systems in success of businesses and argues that average number of companies facing computer outage for ten years will never fully recover and fifty percent of them are out of business within five years. Sajady, Dastgir & Nejad (2008) studied the role of accounting information systems in companies listed on Tehran Stock Exchange and found that AIS improved internal controls, decision making, companies’ transactions and quality of financial reporting.

Thursday, September 26, 2019

Scientific Support for Coaches Essay Example | Topics and Well Written Essays - 2500 words

Scientific Support for Coaches - Essay Example This is a simple indication of the research done to understand the coaching behavior practically undertaken within this schooling institution (Carling, Reilly, & Williams, 2009, p. 3). Therefore, the following paper will look into the significance, source and impact of a coach’s behavior towards the players, and the scientific approach taken and attained towards solving or improving the issue. The factors considered in the research video clips include the means by which the coach shows the drills, how he or she fines the players, the feelings of the coach, and how leading he or she is within and outside the team. Therefore, it is not that significant what the coach utters for every word. After watching both video clips, the coaching behavior and experience there are overall things not only about the film, but the scientific aspect of the study’s aim. Supporting the coach is a prosperous factor of scientific knowledge obtained on the basis of studies carried out with athletes. Data is accessible to maintain the coach and athlete in every zone of training and advancement as well as nutrition, biomechanics, physiology, mental and medication. There are several methodical techniques to measure and assess the athlete’s behavior. For example, computer-assisted evaluation of VO2 max, lactate amounts, running methodologies are a number of the methods. The art of coaching pulls in the moment the coach has to evaluate the methodical information and convert it into coaching and training schedules to assist the athlete. This evaluation depends entirely on the skills and behavior of the coach. The knowledge of the sport or event ought to be a concern of the player and the coach as well. By comprehending the science behind the coaching skills and experience is the foundation of training. It is also an elegant and exercise schedule that can be advanced and assist a

Advanced pharmacology case study Assignment Example | Topics and Well Written Essays - 1000 words

Advanced pharmacology case study - Assignment Example It is recommended that a patient suffering from this kind of diseases should be disciplined as far as observing any medical dose or attention is concerned. Especially if a patient is suffering from diseases which take long to heal or sometimes do not heal at all like diabetes 2, the patient is supposed to observe the medical directions as prescribed by the doctor. Diseases such as diabetes, high blood pressure, heart failure diabetes 2 and ulcers should be keenly be attended with the right prescription from the doctor or medical expert. Patients should been keen to follow the medical instruction from the physician concerned and if in any case they doubt their reaction with medicine, then they should consult the physician concerned (Blobel, 2009). This paper is going to discus the background and history of hypertension, coronary artery disease, type 2 diabetes mellitus, and paroxysmal a trial fibrillation patient who is suffering from all this diseases and tries seek a possible direction about how the medication should be followed by the people suffering from this kind of diseases. Atrial fibrillation is caused by rapid or irregular heartbeat and sometimes it can be paroxysmal or something which cannot end in nature thus permanent. It is usually caused by the failure of the heart tissues or nodes. The automatic heart nervous system dysfunction or sometimes it can be a combination of both. This condition involves chaotic movement of arterial impulses and thus loss of synchrony between the atria and verticals. This kind of irregular heart beat is usually caused by heart abnormality that causes the heart to fail from taking regular heart beats as it should be doing. The electrical impulses across the atria occur abnormally thus causing the failure. This kind of disease at some turn to be resistant an persist then go to a permanent

Wednesday, September 25, 2019

Module 2 Case Assignment Example | Topics and Well Written Essays - 750 words

Module 2 Case - Assignment Example By contacting its consumers companies and customers across the globe, the company is in a position to create strong brands that are competitive. For example, Philips undertook a survey that involved interviewing 26,000 respondents across the world. In order to ensure that the company brands are effective and meet the customer needs, Philips undertakes qualitative research by the use of small focus groups that included professionals such as hospital surgeons who are regular users of scanning equipments (Eeva, 2014). The research that was undertaken in various countries such as Brazil, UK, Germany, US, AND China among others indicated that Philips makes the lives of its consumers better and that they believe they can rely on Philips brand. Philips relies on developing new brand as well as improving the existing ones. This is one of the aspects that make professionals to have strong positive brand-customer relationship. Phillips branding indicate emotions such as innovation, power to th e customers by means of technology, hope, liberty regained and aspirations. Apple, a US based electronics company believes in the production of state of art and style brands. Being one of the top brands in the world, the company adopts product diversification as way of meeting the diversified needs of its customers (Linzmayer, 1999). Some of the brands produced by Apple include computer parts, mp3, laptops and computers among others. The company state of art brands are made through the use of a digital hub as a strategy. Through innovation and research, Apple has produced quality brands that meet ready demand globally. The use of customer experience as well as unique user interface the company has become some of the core capabilities that have created strong positive customer-brand relationship in the company. Basically, Apple branding involves focusing on their products as well as the

Tuesday, September 24, 2019

MIS infrastructure Assignment Example | Topics and Well Written Essays - 250 words

MIS infrastructure - Assignment Example Grid computing has helped Xerox Corporation to coordinate in solving a common problem because it entails a collection of computers which is often geographically dispersed. For grid computing, an issue is broken into pieces and spread to many machines, enabling faster processing power than could happen on a single system. Devices use a percentage of their processing power is leaving more unused processing power thus putting together thousand of single computers to build a supercomputer that can handle intensive duties. The smart grid is used to bring electricity using two-way digital technology. Cloud computing assists Xerox Corporation in resource utilization and applications hosted remotely on the internet. Xerox Corporation also uses virtualized computing to create multiple efficient machines on single computing devices, where a data center is used to house MIS and related elements such as storage systems and telecommunications. Sustainable data centers help in the reduction of car bon emissions, minimizes the needed floor space and chooses a geographic location.Xerox Corporation help companies to establish their strength and weaknesses because of the performance record of the employees, revenue report among more. For Xerox, it supports the communication of the people and planning tool. The system is useful in Xerox because it helps the company perform directive marketing and promotion activities, for example, availability of customer feedback can assist the business to align business processes.

Monday, September 23, 2019

IMPLEMENTATION OF NEW OR IMPROVED PRODUCT IN SERVICES INDUSTRY Essay

IMPLEMENTATION OF NEW OR IMPROVED PRODUCT IN SERVICES INDUSTRY - Essay Example The customers’ interests on the safety as well as the return on the investments in the case of investment products or the risk coverage in the case of insurance products have to be thoroughly analysed and the implementation plan drawn in such a way that there will be a smooth transition in the case of an improvement over the existing product. In the case of new products adequate review process about the suitability of the product to the customer should be undertaken to ensure that the new product is accepted well by the customers and the implementation process is carried out in efficient and effective ways beneficial to the organization and the customers alike. Implementation in the organization means how the new or improved product will be correlated to the existing operations of the organization in compliance with the policy and the procedures of the organization. This process is of paramount importance, as the success of the introduction of the new product or improvement ov er the existing product lies in the way how it is integrated in the organisational hierarchy. This paper attempts to discuss in detail the steps involved in the implementation of a new or improved product in the service industry and the associated issues and problems that need to be addressed to make the implementation effective. As stated earlier, implementation is the process by which the new or improved financial service product is brought in to the stream of the current operational systems and procedures of the organization. First of all the adaptability of the product to suit the customer needs should be explained and people at all levels of the organization should be made to understand the saleability of the product. This process should start from the time the very idea of the product is conceived. Just as a proper designing of an engineering product is important for

Sunday, September 22, 2019

Alice Walker Uses Symbolism to Address Three Issues Essay Example for Free

Alice Walker Uses Symbolism to Address Three Issues Essay Born on February 9, 1944 in Eatonton, Georgia, Alice Malsenior Walker was the eighth and youngest child of poor sharecroppers. Her fathers great-great-great grandmother, Mary Poole was a slave, forced to walk from Virginia to Georgia with a baby in each arm. Walker is deeply proud of her cultural heritage. In addition to her literary talents Walker was involved in the civil rights movement in the 1960s, walking door-to-door promoting voters registration among the rural poor. Walker was present to see Martin Luther Kings I have a dream speech. In August 1963 Alice traveled to Washington D. C. to take part in the March on Washington for Jobs and Freedom. Perched in a tree limb to try to get a view, Alice couldnt see much of the main podium, but was able to hear Dr. Kings I Have A Dream address. (Alice Walker Biography) Walker is a vegetarian involved in many other issues, including nuclear proliferation, and the environment. Her insight to African American culture comes from her travel and experiences in both America and Africa. Walker is an activist regarding oppression and power, championing victims of racism and sexism. After her precedent setting, and controversial thirteen-year marriage to a white, Jewish, civil rights lawyer, Alice fell in love with Robert Allen, editor of Black Scholar. She is currently living in Mendocino, California and is exploring her bi-sexuality. Alice Walkers first novel, The Third Life of Grange Copeland was published the week her daughter was born. Walker received praise for this work, but also criticism for dealing too harshly with the male characters in the book. Walkers best-known novel, The Color Purple won the Pulitzer Prize in 1982, and was made into a movie. Walker was the first black author honored by a Pulitzer. In Celies letters to God, she tells her story about her role as wife, mother, daughter, and sister, and other women who help shape her life. Walker portrays Africa in a positive way, and looks to it as a form of artistic and ideological expression. Walker was also criticized for her portrayal of men, often as violent rapists and wife beaters. Even as she portrays men, often in a bad light, she likes to focus on the strength of women. In her story, Everyday Use Alice Walker uses symbolism to address three main issues: racism, feminism and the black Americans search for cultural identity. The story Everyday Use is set in the late 60s or early 70s and the setting is an impoverished home in Georgia. The critical analysis of Everyday Use from the web site Sistahspace presented the following interpretation: This was a time, when African-Americans were struggling to define their personal identities in cultural terms. The term Negro had been recently removed from the vocabulary, and had been replaced with Black. There was Black Power, Black Nationalism, and Black Pride. Many blacks wanted to rediscover their African roots, and were ready to reject and deny their American heritage, which was filled with stories of pain and injustice. Alice Walker is, as David Cowart argues, [satirizing] the heady rhetoric of late 60s black consciousness, deconstructing its pieties (especially the rediscovery of Africa) and asserting neglected values (Cowart, 182). The central theme of the story concerns the way in which an individual understands his present life in relation to the traditions of his people and culture. (Sistahspace) Everyday Use depicts a poor, illiterate black mother who rejects the shallow Black Power ideals of her older, outspoken daughter, Dee, in favor of the practical values of her younger, less privileged daughter, Maggie. Mama is the orator, and like griots from tribes in Africa, she perpetuates the oral traditions and history of the family. Mamas upbeat self-image in spite of little formal education, leads the reader to feel the intense pride she has in maintaining self-sufficiency. As discussed in David Whites critical analysis of (Everyday Use: Defining African-American Heritage), Mamas lack of formal education does not prevent her from formulating a sense of heritage unattached to the Black Power movement held by her, purportedly educated, daughter Dee. Mamas daughter, Dee (Wangero), has a much more superficial idea of heritage. She is portrayed as bright, beautiful, and self-centered. Maggie is the younger daughter, who lives with Mama. She is scared and ashamed, lying back in corners, cowering away from people. (White, David) (Everyday Use: Defining African-American Heritage. ) Maggie understands her heritage, and appreciates the significance of everyday things in the house. She is uneducated, and not in the least outspoken, and is unable to make eye contact. Maggie has stooped posture and walks with a shuffle, this, combined with her inability to look you in the eye, points to her vulnerability in dealing with newfound black rights. Mamas daughter Dee, who is portrayed as quite successful, has come home to visit and display her new African style heritage. Dee has adopted things African and has changed her name to Wangero. As she handles the everyday articles fashioned and used by previous generations, she believes they should be displayed to her white girlfriends, especially the old quilts made by Mama, her sister and her mother. Mama has promised the quilts to Maggie but Dee says, Maggie does not understand their value and would just put them to everyday use. (Walker, Everyday Use) Mama must decide which daughter should receive the family quilts. Finally, Mama realizes that her daughter, Maggie, has a closer connection with her view of family history than Dee does and gives her the quilts. This is the first time Mama has asserted any authority over Dee. On a deeper level, Alice Walker is exploring the concepts of racism and the evolution of Black Society following the end of slavery, through the era of Martin Luther King, and finally to the Black Power movement in the late 1960s and early 1970s. Maggie, Mama, Dee/Wangaro and Hakim-a Barber, symbolize this. Mama is illiterate, because her school closed when she was in the second grade. The role of black Americans in the late 1920s is best illustrated by Mamas line, School was closed down. Dont ask me why: in 1927 colored asked fewer questions that they do now (Walker, Everyday Use) When Mama describes the old house, burning down it symbolizes the ending of slavery and the decreed civil rights. The scars that Mammas daughter Maggie, bear are representative of the pain of the past and difficulty in moving from the role of subservience to equality. Maggie has difficulty looking you in the eye just as the American Negro had difficulty moving from the subservient role to peer in dealings with whites. Maggies head down on the chest at first appears as an as shame for her scars from the house fire, but they come to symbolize a person caught in the old black paradigm, unable to embrace newfound freedoms in society. The fire of slavery has damaged Maggie and she resigns herself to a transitional cultural existence, neither old nor new. Mama represents the ideals of Martin Luther King through her dream of going on the Johnny Carson show to meet Dee. She embraces the idea of this fantasy and takes pleasure in replaying it in her mind. Ultimately, Mamma is thrust back to the reality that it will never happen, just as she seems to resign herself to the fact that Kings dreams are not real for her generation but for the next.

Saturday, September 21, 2019

Adams equity theory

Adams equity theory 3.4. 4 Equity Theory Adams s (1965) equity theory is another form of motivation. In this model, like in expectancy theory, people are viewed as having thoughts, feeling, and opinions that affect their work. He also proposes that the social comparison process begins with the individuals assessment of what he or she need to puts into the job relative to what is received from it. That is, the person develops a cognitive ratio composed of the inputs to the job and the return (output) from it. Inputs Typically, inputs are consider as an effort, loyalty, hard work, commitment, skill, ability, adaptability, flexibility, tolerance, determination, heart and soul, enthusiasm, trust in our boss and superiors, support of colleagues and subordinates, personal sacrifice, etc. Outputs The outputs typically are define as financial rewards, for example pay salary, expenses, perks, benefits, pension arrangements, bonus and commission plus intangibles recognition, reputation, praise and thanks, interest, responsibility, stimulus, travel, training, development, sense of achievement and advancement, promotion, etc. According to Adams (1965), people who feel that there is fairness between inputs and outputs. T he output/input(O/I) ratio denotes the proportion of job inputs (I) to job outputs (O), and it expresses to the extent to which of the exchange is felt to be appropriate. People feel it will be fair if the exchange of the output is seen to be as equal as the input. When outputs are greater than inputs, people know they are overpaid, and conversely, when outputs are less than inputs, people feel underpaid. In a second phase of the process, people engage in social comparison. They begin by assessing the O/I ratios of others at work. Then, the person compares their self-ratio with the ratios of other significant persons. 3.4.4.1 Discussions on Equity Theory Equity theory has been used as a guide for paying and motivation, particularly in terms of changes in the quality and quantity of performance. Reviewers of the research have reported that the predicted effects of underpayment on performance are well supported (Campbell and Pritchard, 1976; Goodman and Friedman, 1971). Decreased production among underpaid hourly subjects has been observed as predicted (Pritchard, Dunnette, and Jorgenson, 1972). Increased production coupled with decreased work quality among underpaid piece rate subjects also has been observed (Lawler and OGara, 1967). 3.4.6 Goal-setting Therory Like equity and expectancy theories, goal-setting theory is consider as a process theory. Locke (1968) initiated the original work on this theory. The theory identifies the contents of the motivational structure, but the greater emphasis is on the process of motivation. Goals are the central feature of the motivational structure. His studies resulted in three main conclusions: More difficult goals result in higher levels of performance than easy goals. This is the first conclusion. The outcomes of a series of experiments showed that â€Å"although subjects with very hard goals reached their goals far less often than subjects with very easy goals, the former consistently performed at a higher level than the latter† (Lock, 1968). Specific goals produce higher levels of performance than general goals (e.g. ‘Do your best!) Locke suggests that one of the features of specific, hard goals is that they prolong effort during the latter portions of long work sessions (Locke, 1968). Locke also reported on a study by Meyer, Kay and French (1965) into goal-setting during appraisal interviews. They found that the tasks that were translated into specific goals resulted in greater performance outcomes than tasks that were not. Behavioural intentions influence the choices people make. This is the final conclusion. Behavioural intention was defined as â€Å"the intention to make a certain task choice or to respond in a certain way† (Locke, 1968). In other words, Locke concluded that the level of difficulty of a chosen goal depended on what the person undertaking the task was aiming to achieve. 3.4.6.2 Discussions on Goal-setting Theory Goal-setting theory is useful to many managers because much of people management is specifically about performance against goals. It is also a theory that human resource professionals are likely to be familiar with because it is often focus on objectives. Although the Goal-setting theory specifically states that goals have to be considered valid for them to be motivating, the theory does not cover the issue of goal commitment according to Hollyforde and Whiddett (2002). Peoples commitment to a goal is an obviously key to anticipating their motivation to succeed at it. Carroll and Tosi (1973) reported that the self-esteem seems to be an important factor here. For example, managers with high self-esteem reported they were more persistent in meeting their goals than those managers with low self-esteem. In general, Goal-setting theory is a theory that has great relevance for managers. The three conclusions of the theory that suggest that the most motivating goals are not only specific but also challenging must ring true for many managers.

Friday, September 20, 2019

CuH-mediated Hydroamination of Styrene

CuH-mediated Hydroamination of Styrene Abstract: A detailed computational exploration of mechanistic intricacies of the copper(I) hydride (CuH)-catalysed hydroamination of styrene with a prototype hydoxylamine ester by a recently reported (dppbz)CuH catalyst (dppbz ≠¡ {P^P} ≠¡ 1,2-bis(diphenylphosphino)benzene) is presented. A variety of plausible mechanistic avenues have been pursued by means of a sophisticated computational methodology, from which a general understanding of the factors controlling hydroamination catalysis emerged. The catalytically competent {P^P}CuI hydride, which is predominantly present as its dimer, involves in irreversible hydrocupration proceeding with complete 2,1 regioselectivity to form a secondary {P^P}CuI benzyl intermediate. Its interception with benzylamine ester produces the branched tertiary amine product and {P^P}CuI benzoate upon intramolecular SN2 disruption of the amine electrophiles N-O linkage to precede highly rapid, strongly exergonic C-N bond-forming reductive eliminati on. The {P^P}CuI benzoate corresponds to the catalyst resting state and its conversion back into the {P^P}CuI hydride upon transmetalation with a hydrosilane is turnover limiting. The effect of electronic perturbations at the amine electrophile upon the reaction rate for productive hydroamination catalysis and also non-productive reduction of the hydroxylamine ester has been gauged, which unveiled a more fundamental insight into catalytic structure-performance relationships. Introduction The catalytic hydroamination (HA) reaction, the direct addition of an N-H bond across an unsaturated carbon-carbon linkage, offers facile access to an industrially relevant organonitrogen commodity and fine chemicals in a green, waste-free and highly atom-efficient manner.[1] By focusing on late d-block metal catalysis, several distinct mechanistic pathways have been revealed over the years for the hydroamination of alkenes, including the following principal processes: 1) N-H bond activation with subsequent alkene insertion into the metal-NR2 linkage,[2] nucleophilic attack of an amine at a metal-bound alkene,[3] nucleophilic attack of a metal amido species at an activated alkene[4] and amine coordination to be followed by proton transfer onto an activated alkene.[5] Despite the significant progress achieved over the past years the utilisation of these methodologies is still limited by a number of drawbacks.[1] The development of a general approach for regio- and enantioselective hyd roamination of a broad range of alkene substrate classes, in particular, remains an important challenge in the context of intermolecular HA. Recently, the groups of Miura[6] and Buchwald[7a] reported independently a mechanistically distinct approach for styrene HA that involves copper(I) hydride (CuH) as the catalyst together with amine electrophiles and a hydrosilane hydride source to furnish amines in excellent yields and enantio-/regioselectivities under mild conditions.[8] Miura and co-workers disclosed that styrenes react with benzylamine ester reagents in THF at room temperature to afford exclusively branched benzylic tertiary amines in the presence of a (dppbz)CuH catalyst (dppbz ≠¡ {P^P} ≠¡ 1,2-bis(diphenylphosphino)benzene) and a hydrosilane hydride source (Scheme 1).[6] Treatment of the Cu(OAc)2/dppbz starting material with Li(OtBu) and a reducing agent likely gives rise to {P^P}Cu(OtBu) 2, which becomes converted into the catalytically competent {P^P}CuI hydride 3 through transmetalation with silane. According to plausible mechanistic pathways outlined in Scheme 2 styrene insertion into the Cu-H linkage at 3 leads to {P^P}CuI alkyl 4 that couples with the benzylamine ester electrophile thereafter to generate amine product P and {P^P}CuI benzoate 6. Various mechanistic pathways can be envisaged for this transformation,[9] but its precise details remain largely elusive thus far. Transmetalation of 6 with hydrosilane regenerates the catalytically competent {P^P}CuI hydride for another catalyst turnover. The performance of HA catalysis via the productive cycle can be compromised by the well known aptitude of the {P^P}CuI hydride to reduce the amine electrophile. This may proceed through various pathways to involve formation of either N-H (one plausible path via a {P^P}CuIII benzoate amido hydride intermediate 7 is exemplified in Scheme 2) or O-H bonds to afford {P^P}CuI benzoate 6 by consumption of a molar equivalent of the amine electrophile. Precise knowledge of both the operative mechanism and of catalytic structure-performance relationships are indispensable for the rational design of improved HA catalysts. In light of the fact that precise details of mechanistic intricacies of CuH-mediated vinylarene HA remain largely elusive thus far,[10] a sophisticated computational protocol has been employed as an established and predictive means to study reaction mechanisms and to guide rational catalyst design. The present study scrutinises rival mechanistic pathways for HA of styrene (1a ≠¡ S) with O-benzoyl-N,N-dimethyl-hydroxylamine (1b ≠¡ A) by a catalytically competent dppbz-ligated CuI hydride complex in the presence of prototype trimethylsilane (1c ≠¡ H) as hydride source. No structural simplification (other than replacing O-benzoyl-N,N-diethyl-hydroxylamine and HSiPh3 used in experiment by 1b and 1c, respectively, solely for the purpose of computational efficiency) of any kind has been imposed for any of t he key species involved. The computational methodology employed (highly accurate DLPNO-CCSD(T) in conjunction with basis sets of def2-TZVP quality and a sound treatment of bulk solvent effects) simulated authentic reaction conditions adequately and mechanistic analysis is based on Gibbs free-energy profiles. This computational protocol can confidently be expected to reliably map the energy landscape and this has allowed mechanistic conclusions with substantial predictive value to be drawn. As detailed herein, our comprehensive mechanistic examination provides support that effective HA catalysis involves irreversible hydrocupration with strict 2,1 regioselectivity to be followed by generation of the branched tertiary amine product by interception of the thus formed secondary {P^P}CuI benzyl nucleophile with amine electrophile. The prevailing pathway sees the first intramolecular SN2 displacement of the benzoate leaving group and is followed by highly facile and strongly exergonic C-N bond-generating reductive elimination from a highly reactive, intervening {P^P}CuIII species. It leads to amine product and {P^P}CuI benzoate, the latter of which corresponds to the catalyst resting state. Its conversion back into the catalytically competent {P^P}CuI hydride is turnover limiting. Results and Discussion The aim of the present study is twofold. A first part scrutinises thoroughly all the relevant elementary steps of Scheme 2, with special attention devoted to the several mechanistic avenues that can be invoked regarding the interaction of {P^P}CuI alkyl nucleophile with the amine electrophile and also the productivity-limiting reduction of the amine transfer agent. A second part explores the effect of electronic perturbations at the amine electrophile upon catalyst performance. {P^P}CuH-mediated HA of styrene with amine electrophile 1b Catalyst initiation Effective HA catalysis entails the initial conversion of {P^P}Cu(OtBu) 2 into the catalytically competent {P^P}CuI hydride compound. The ability of hydrosilane 1c (≠¡ H) to affect transmetalation at 2, although being rather unlikely turnover limiting, will influence the performance of HA catalysis, since it determines the amount of catalytically competent {P^P}CuI hydride species available for catalyst turnover. Hydroxylamine ester 1b (displaying a slight preference for à ¯Ã‚ Ã‚ «1-N over à ¯Ã‚ Ã‚ «1-O donor ligation) and THF (T) show a comparable aptitude to bind at copper in 2. However, the entropic costs linked with reactant association place the respective adducts 2†¢A, 2†¢T higher in free energy relative to the separated fragments. This gap widens regularly for ever weaker donor molecules as clearly seen in Figure 1 for silane (2†¢H) adducted species. Furthermore, 2 exhibits no propensity toward dimer formation, as all the efforts to localise a dimeric species failed. After the initial facile, but uphill association of trimethylsilane 1c at 2, transmetalation evolves through a metathesis-type transition-state (TS) structure (see Figure S1 in the Supporting Information), which decays thereafter into the {P^P}CuI hydride complex 3 through facile liberation of Me3SiOtBu. Figure 2 reveals an affordable kinetic barrier (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 22.4 kcal mol-1 relative to {2 + 1c}) for conversion of 2 into the catalytically competent complex 3, which is driven by a thermodynamic force of substantial amount. {P^P}CuI hydride compound Reactant (styrene S, hydroxylamine ester A, hydrosilane H), amine product (P) and THF (T) solvent molecules can associate in various ways at copper in the catalytically competent hydride compound (see Figure S2 in the Supporting Information) to give rise to a multitude of adducted species, all of which are expected to participate in mobile association/dissociation equilibria.[11] Similar to what is found for 2, the copper centre can accommodate only a single molecule;[13] its moderate binding enthalpy, however, cannot compensate for the associated entropic costs, thereby rending the various adducted species to be higher in free energy than the respective separated fragments. Amines (A, P) and styrene (benefitting from coppers ability for backbonding) are found to associate preferably and hence 3†¢A, 3†¢S display an energy gap (relative to separated fragments) that is somewhat smaller than for 3†¢T and 3†¢H (Figure 3). On the other hand, 3 exhibits a pronounced pro pensity towards dimer formation with 3dim is favoured by 7.5 kcal mol-1 relative to 3 (Figure 3). Hence, the catalytically competent {P^P}CuI hydride is predominantly present as dimer 3dim with relevant adducts 3†¢S (productive cycle, Scheme 2) and 3†¢A (non-productive cycle, Scheme 2) are well separated and higher in free energy by more than 12 kcal mol-1 (Figure 3). Styrene insertion into the Cu-H linkage Following the plausible catalytic scenario in Scheme 2, the productive cycle entails the first generation of {P^P}CuI alkyl 4. Alternative regioisomeric pathways for migratory C=C bond insertion into the Cu-H à ¯Ã‚ Ã‚ ³-bond commencing from 3†¢S have been examined. The possible participation of another reactant, amine product or solvent molecule has been probed explicitly, but neither encounter, product or TS structures featuring a stable coordination of a spectator molecule could be located.[13] Common to both pathways for 1,2 and 2,1 insertion is the evolution of C-H bond formation through a four-centre planar TS structure describing metal-mediated migratory insertion of the styrene C=C linkage into the polar Cu-H bond, which occurs at distances of 1.57-1.65 Ã… (see Figure S3 in the Supporting Information) for the emerging C-H bond. Following the reaction path further, TS structures decay into primary {P^P}CuI alkyl 4b (1,2 insertion) and secondary {P^P}CuI benzyl 4a (2,1 insertion), respectively. Effective delocalisation of electron density is known to markedly influence the stability of the polarised TS structure describing the interaction of an electron-rich Cu-H à ¯Ã‚ Ã‚ ³-bond with the styrene C=C linkage and also of 4, such that the regioselectivity of the hydrocupration is largely dictated on electronic grounds.[14] The  °-electron-withdrawing arene functionality at the styrene carbon directly adjacent to the copper centre effects an effective depletion of electron density from the nonsubstituted olefinic CH2 centre in the TS structure and also assist through hyperconjugative interaction with the stability of 4a. Hence it electronically stabilises both the TS structure for 2,1 insertion and 4a when compared to the species involved in 1,2 insertion that are devoid of such an opportunity. The located TS and product species (see Figure S3 in the Supporting Information) give no indication that the electronic predisposition towards 2,1 insertion is likely to be reversed due to favourable {P^P}Cu-arene interactions along the 1,2 pathway. Thus, 2,1 insertion is expected to prevail energetically on both kinetic and thermodynamic grounds. Indeed, Figure 4 reveals that migratory olefin insertion proceeds with complete 2,1 regioselectivity to afford secondary {P^P}CuI benzyl 4a by overcoming a barrier of 21.6 kcal mol-1 (à ¯Ã‚ Ã¢â‚¬Å¾G relative to 3dim), whereas the 1,2 pathway remains inaccessible due to higher kinetic demands (à ¯Ã‚ Ã¢â‚¬Å¾Ãƒ ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 4.1 kcal mol-1) and is also disfavoured thermodynamically (à ¯Ã‚ Ã¢â‚¬Å¾Ãƒ ¯Ã‚ Ã¢â‚¬Å¾G = 4.4 kcal mol-1). It characterises hydrocupration via the energetically prevalent 2,1 pathway to be kinetically viable and irreversible.[15] Amine product generation upon interception of 4 by amine electrophile The interception of {P^P}CuI alkyl 4 with amine electrophile 1b gives rise to the generation of amine product P and releases {P^P}CuI benzoate 6 (Scheme 2). Various mechanistic scenarios are conceivable for this transformation,[9] but, unfortunately, virtually no precise details of the operative mechanism are available.[10] This section intends to fill this gap by thoroughly examining several rival pathways. It includes the cleavage of the hydroxylamine ester N-O linkage via: 1) SN2 displacement of the benzoate leaving group; 2) intramolecular SN2 displacement; and 3) oxidative addition across the N-O linkage. This affords transient {P^P}CuIII intermediate 5, from which P and 6 are likely formed upon C-N bond-forming reductive elimination. The generation of the branched tertiary amine product Pa in a single step through nucleophilic attack of the Cu-C linkage at the positive N(amine) centre with concomitant N-O bond cleavage has been probed as a further plausible mechanistic avenue ( dashed arrow in Scheme 2). Given that hydrocupration proceeds with strict 2,1 regioselectivity, the discussion will focus exclusively on pathways that commence from 4a. Notably, rival paths starting from 4b are found energetically non-competitive in every case studied. The full account of all the studied pathways can be found in the Supporting Information. We start with examining N-O bond cleavage of 1b by nucleophilic {P^P}CuI benzyl 4a. Figure 5 collates the free-energy profile of the most accessible pathway for the various mechanistic scenarios examined, whilst structural aspects of key species involved can be found in Figures S4-S9 (see the Supporting Information). The electrophile 1b binds preferably via its N donor centre (à ¯Ã‚ Ã‚ «1-N) at copper to furnish adducts with the unbound carboxylate oxygen pointing either towards (4a1†¢A) or away (4a2†¢A) from the metal, both of which are higher in free energy than the separated fragments. The located TS[4a2†¢A5a] structure describes N-O bond cleavage that is reminiscent of a SN2 displacement of the benzoate group, featuring distances of 1.72 and 2.02 Ã… for vanishing N-O and emerging Cu-N amido bonds (see Figure S5 in the Supporting Information). Progressing further along the reaction trajectory, the benzoate group binds eventually at copper to deliver transient { P^P}CuIII intermediate 5a. The intramolecular process version commencing from 4a1†¢A evolves through a five-centre TS[4a1†¢A-5a] that displays similar metrics regarding vanishing N-O and emerging Cu-N amido bonds, but crucially benefits from an already pre-established Cu-O(benzoate) contact (see Figure S7 in the Supporting Information). As it turns out, this contact likely renders 4a1†¢A→5a intramolecular SN2 displacement somewhat favourable kinetically over 4a2†¢A→5a with both pathways are indistinguishable on thermodynamic grounds. The TSOA[4a2†¢A-5a] shown in Figure 5 (see also Figure S9 in the Supporting Information) has been located as energetically prevalent three-centre TS structure describing oxidative addition across the N-O linkage that occurs at distances of 2.43 Ã… and 1.89/2.60 Ã… for vanishing N-O and newly built Cu-N(amido)/Cu-O bonds, respectively. The condensed free-energy profiles in Figure 5 reveal that for cleavage of the electrophiles N-O linkage by {P^P}CuI benzyl nucleophile the 4a1†¢A→5a intramolecular SN2 pathway (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 19.8 kcal mol-1 relative to {4a+1b}) prevails kinetically somewhat over 4a2†¢A→5a, with oxidative addition proceeding through TSOA[4a2†¢A-5a] (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 31.1 kcal mol-1 relative to {4a+1b}) is found substantially more demanding kinetically and hence not accessible. The fine energy balance between the alternative SN2-type pathways is likely be influenced by the diphosphine catalyst backbone. Figure 6 combines the dominant pathway for N-O bond cleavage at amine adduct 4a†¢A with C-N bond-generating reductive elimination at transient {P^P}CuIII 5a taking place thereafter. Given that benzyl and amido functionalities are already preferably arranged in 5a no major structural reorganisation is required prior to traversing TS[5a6†¢Pa], which occurs at a distance of 2.36 Ã… of the emerging C-N bond (see Figure S11 in the Supporting Information) and decays thereafter into the branched tertiary amine product that is initially bound to {P^P}CuI benzoate (6†¢Pa), but is readily released thereafter. The reductive elimination is found highly facile (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 5.2 kcal mol-1 relative to 5a) and driven by a remarkably strong thermodynamic force (Figure 6). Of the two consecutive steps converting {P^P}CuI benzyl 4a into amine product Pa and {P^P}CuI benzoate 6 through interception with electrophile 1b, the first intramolecular SN2 displacement of the ben zoate leaving group determines the overall kinetic demands (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 19.8 kcal mol-1 relative to {4a+1b}) with Pa and 6 are then generated from transient, highly reactive {P^P}CuIII intermediate 5 upon rapid and strongly downhill reductive elimination. Nucleophilic attack of the Cu-C linkage at the positive N centre of the amine electrophile with concomitant N-O cleavage, thereby affording 6a + Pa in a single step, describes an alternative mechanistic scenario. Despite all our efforts, a precise TS structure associated to this pathway could not be located, but examination by means of a state-of-the-art reaction-path-optimisation (chain-of-state; see the Computational Methodology) method provided a reasonably approximate TS structure. The multicentre TS[4a1†¢A-6†¢Pa] describes concerted N-O bond cleavage (2.30 Ã…) together with C-N (2.54 Ã…)/Cu-O(2.37 Ã…) bond formation, all occurring in the immediate vicinity of the copper centre (see Figure S12 in the Supporting Information). A substantial barrier of approximately 30.7 kcal mol-1 (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ relative to {4a+1b}) has to be overcome (Figure 7), which renders the concerted 4a1†¢A→6†¢Pa pathway non-accessible kinetically in the presence of the viable two-step conversion shown in Figure 6.[16] {P^P}CuI benzoate compound In light of the strong thermodynamic force associated with generating the C-N bond, the {P^P}CuI benzoate may become, among others, a candidate for the catalyst resting state. Hence, the aptitude of 6 to accommodate additional reactant, amine product and THF solvent molecules has been probed in order to clarify its precise identity. In accordance with findings for 2 and 3, a single molecule only can bind at copper at the expense of one of the two Cu-O(carboxylate) linkages, but adduct formation is disfavoured in terms of free energy. Hence the {P^P}CuI benzoate is predominantly present as non-adducted form 6 featuring a à ¯Ã‚ Ã‚ «2-O ligated benzoate functionality (Figure 8). Regeneration of {P^P}CuI hydride from {P^P}CuI benzoate Transmetalation of 6 with trimethylsilane 1c regenerates the catalytically competent {P^P}CuI hydride 3 for another catalyst turnover, thereby closing the cycle for productive HA catalysis. Two scenarios have been analysed that are distinguished by which of the carboxylate oxygens at silane adducted 6†¢H participate in Si-O bond formation. The transfer of silyl onto the oxygen directly bound to Cu evolves through a four-centre metathesis-type TS[6†¢H-3†¢OS1] and leads eventually to 3 upon facile liberation of Me3SiOBz. On the other hand, a six-centre TS[6†¢H-3†¢OS2] is traversed along an alternative pathway representing silyl transfer onto the unbound carboxylate oxygen (Figure 9 and Figure S13 in the Supporting Information). The enhanced stability of six-centre TS[6†¢H-3†¢OS2] versus four-centre TS[6†¢H-3†¢OS1] discriminates among the two pathways, which are driven by a thermodynamic force (à ¯Ã‚ Ã¢â‚¬Å¾G = 0.5 kcal mol-1 relative to {6 + 1c}) of identical magnitude. The assessed barrier of 26.2 kcal mol-1 (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ relative to {6 + 1c}) for the most accessible pathway characterises 6 + 1c→3 + Me3SiOBz as a kinetically demanding, but viable transformation that is slightly uphill thermodynamically (Figure 9). Reduction of the benzylamine ester by {P^P}CuI hydride The well known tendency of the catalytically competent {P^P}CuI hydride to reduce the amine electrophile under N-H bond formation, hence giving rise to {P^P}CuI benzoate, or alternatively via O-H bond formation to afford a {P^P}CuI amido can severely compromise the catalyst performance. To this end, several conceivable pathways (some of which are sketched in Scheme 2) have been studied. Whilst focusing on thermodynamic aspects amine reduction with N-H bond formation via 3 + 1b→6 + HNMe2 (à ¯Ã‚ Ã¢â‚¬Å¾G = -71.9 kcal mol-1) appears to be strongly favoured over O-H bond generating 3 + 1b→{P^P}CuI(NMe2) + benzoic acid (à ¯Ã‚ Ã¢â‚¬Å¾G = -51.3 kcal mol-1). The cleavage of the N-O linkage of 1b at amine adduct 3†¢A does preferably proceed through SN2 displacement of the benzoate leaving group with the intramolecular pathway proved to be somewhat favourable energetically (see Figure S14 in the Supporting Information), whilst oxidative addition of electrophile 1b across the N-O linkage is found substantially more demanding kinetically. All these aspects closely parallel the findings regarding the preferable avenue that leads to generate {P^P}CuIII 5a (see above). Likewise, N-H bond-forming reductive elimination at {P^P}CuIII amido hydride intermediate 7 is highly facile kinetically and strongly downhill as 5a→6a + Pa is. Unfortunately, all the efforts to localise the associated TS structure have not been successful, but the examination of the reaction path thoroughly by means of a chain-of-state method firmly indicates that reductive amine elimination at 7 has an only marginal barrier, if at all, to overcome, hence it proceeds almost instantaneously. Overall, a smooth, kinetically affordable pathway for undesired 3 + 1b→6 + HNMe2 conversion has been located that comprises a first intramolecular SN2 cleavage of the N-O bond (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 26.3 kcal mol-1 relative to 3dim, Figure 10), to be followed by highly rapid reductiv e amine elimination from an intervening and highly reactive {P^P}CuIII intermediate 7, thus reflecting the well-documented aptitude of 3 to engage in performance-limiting reduction of the electrophilic amination reagent.[6, 7] Further attempts devoted upon locating a proper TS structure for the concerted attack of the nucleophilic Cu-H linkage at the N centre of the amine electrophile to be accompanied with N-O bond disruption has not been successful. However, a reasonably approximate TS (see Figure S15 in the Supporting Information) is seen to be above TS[31†¢A-7] by another 19.8 kcal mol-1, such that the concerted pathway can confidently be discarded as energetically viable alternative to the operative two-step process. Proposed catalytic cycle The mechanistic picture based upon the above thoroughly conducted examination of relevant elementary steps is presented in Scheme 3. An energetically smooth and downhill sequence of steps transforms the starting material into the catalytically competent {P^P}CuI hydride 3, which is in a mobile equilibrium[11b] with its thermodynamically prevalent dimer 3dim. Migratory insertion of the styrene C=C linkage into the Cu-H bond is kinetically facile (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 21.6 kcal mol-1 relative to { ½3dim+1a}), thermodynamically downhill and proceeds with strict 2,1 regioselectivity. Hence irreversible hydrocupration is regioselectivity determining and occurs prior to the turnover-limiting step. The interception of the thus generated secondary {P^P}CuI benzyl 4a with amine electrophile 1b produces the branched tertiary (Markovnikov) amine product Pa and {P^P}CuI benzoate 6. This transformation favours a two-step process comprising the first intramolecular SN2 displacement of the b enzoate leaving group (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 19.8 kcal mol-1 relative to { ½3dim+1a+1b}) to furnish transient, highly reactive {P^P}CuIII intermediate 5 from which Pa and 6 are generated upon highly rapid and strongly downhill reductive elimination. It renders 6 to be the most stable species of the cycle for productive HA catalysis and it thus corresponds to the catalyst resting state. The regeneration of catalytically competent 3 from 6 through transmetalation with hydrosilane 1c is found most demanding, but affordable, kinetically (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 26.2 kcal mol-1 relative to {6+1c}) and hence is turnover limiting its assessed barrier is compatible with reported catalyst performance data.[6] It is worth mentioning that a similar picture regarding hydrocupration and transmetalation steps has emerged from a recent experimental study by the Buchwald group on a DTBM-SEGPHOS-based CuI catalyst.[7d] A stepwise pathway closely related to 4a†¢A→6 + Pa is preferably traversed for the non-productive reduction of amine electrophile by 3. An intramolecular SN2 N-O bond disruption (à ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 26.3 kcal mol-1 relative to { ½3dim+1b}) precedes highly facile and strongly downhill reductive amine elimination from intervening, highly reactive {P^P}CuIII intermediate 5a. The assessed small kinetic gap (à ¯Ã‚ Ã¢â‚¬Å¾Ãƒ ¯Ã‚ Ã¢â‚¬Å¾G†¡ = 0.1 kcal mol-1) between discriminative TS structures for productive and non-productive reaction branches reflects adequately the observed close competition between the two processes, which can lead to compromised catalyst performance for improper chosen amine electrophiles. Furthermore, it provides further confidence into the substantial predictive ability of the herein employed high-level computational methodology.[17] Effect of the amine electrophile upon catalyst performance A second part of this study explores the effect of the amine electrophile upon catalyst performance. To this end, the energy profile for two

Thursday, September 19, 2019

Graduation Speech -- Graduation Speech, Commencement Address

I once read that life is well represented as a pearl deep within an oyster. The pearl symbolizes each person's potential, or the things that are going well for them in life. Just as a mere grain of sand that enters an oyster can grow into something of great worth, there is a fragment of excellency within every one of you that over time can be shape you into an individual who will make a difference in the world. There will be trials and hardships to overcome along the road to making a difference, but consider what Hellen Keller once wrote, "The marvelous richness of human experience would lose something of rewarding joy if there were not limitations to overcome. The hilltop hour would not be half so wonderful if there were no dark valleys to traverse." It is true that undergoing hard work in order to achieve one's dreams makes the arrival at success even more gratifying. Our lives are books to which each of us is our own author. We are the ones who write each chapter of our life. The best chapters are yet to be written and among them are talents yet to be discovered. We all po...

Wednesday, September 18, 2019

Division of Labor According to Gender in Virginia Woolfs A Room of One

Division of Labor According to Gender in Virginia Woolf's A Room of One's Own Virginia Woolf, in her treatise A Room of One's Own, identified a gendered division of labor. For her, men work in the market place and make the money while the women, the upper class women at least, attend to the social pleasantries and household management. While she lamented this state of affairs, she did not present, as Gilman did, a model for existence that would allow men and women to operate on the same level. However, a direct comparison to Gilman is somewhat unfair as she was not focused on the status of women in the economy so much as the status of women as writers. Like Gilman, Woolf saw this division between a man's work and a woman's work as a socially constructed conceit. Unlike Gilman, Woolf advocated a further break between the world of men and women. Woolf saw the status of women as a socially constructed situation. She certainly does blame the patriarchy for this, however, blame also falls on the women. "At the thought of all those women working year after year and finding it hard to get two thousand pounds together...we burst out in scorn at the reprehensible poverty of our sex" (Woolf 21). It is not that Woolf pitied the situation of British women, she scorned it. She declared that women were responsible for their own "reprehensible" state (21). She lamented: "If only Mrs. Seton and her mother and her mother before her had learnt the great art of making money and had left their money...to the use of their own sex...we might have looked forward...to a pleasant and honourable lifetime spent in the shelter of one of the liberally endowed professions" (21). The fact that it was "their fathers and their grandfathers bef... ...the broader situation of the implicit implications of the sexual divisions of labor. While certainly women in academic positions will mitigate the misogyny of Professor von X, it proposes little to change women's attitude towards making money for their own descendants. We are left to assume that a change in the intellectual elite will percolate down into the ranks of the working class. Whatever the problematic implications, Woolf called for a new era where "[women] have the habit of freedom and the courage to write exactly what [they] think" (Woolf 113). She closed her treatise on a comment pointed at the female writers of her age: "I maintain that she [Shakespeare's sister] would come if we worked for her, and that so to work, even in poverty and obscurity, is worth while" (114). References Woolf, V. A Room of One's Own. London: Harcourt, 1929. 1

Tuesday, September 17, 2019

Darden case study Essay

1. Using the full spectrum of segmentation variables, describe how Darden segments and targets the sit-down dining market. The types of segmentation include geographic, demographic, psychographic, and behavioral segmentation. For geographic segmentation, Darden has all of its Longhorn Steakhouse restaurants in the eastern half of the United States but they are trying to expand to the west coast. This is a great idea because out west is an untapped market with great potential for lots of earnings. Darden has a chance to redefine the image of steakhouses as is currently being done like the classiness that is being added to the brand. The customer traffic is increasing and Longhorn Steakhouse could potentially even overtake Outback Steakhouse as the premier steakhouse type of restaurant. For demographic segmentation, Red Lobster represents the opportunity Darden has to fill the gap between the young fast food concept and the upscale white-tablecloth restaurants. Red lobster is even making many changes to accommodate for the changing times around America which is causing sales to fall. With innovative concepts such as wood fired grilling resulting in a â€Å"taste of wood-grilled seafood† and investments in equipment and training, Darden is putting itself back in the spotlight to becoming recognized and respected. You can also never go wrong with fried shrimp so Red Lobster will always have that marketing card to play. The Psychographic segmentation is shown by how people want to feel positive emotions when they go out to restaurants such as the concept of a happy family and namely the mythical Italian family. Customers want to feel emotionally satisfied as much as they want to be physically satisfied by the food. Creating an authentic menu hits close to home because people get that warm and happy feeling when they see the authenticity. Even Olive Garden’s commercial â€Å"When you’re here, you’re family† and slogan show the feelings of connection that Americans want to feel and would be willing to come in for. Behavioral segmentation is shown in how less frequently Americans want to sit down at restaurants to eat their meals. With all of our financial constraints we are choosing different and more cost effective ways to eat out and have a good time with the family. Darden needs to use more cost effective ways to lower the meal prices so that family’s will once again be willing to eat out at a sit down restaurant on a regular basis.

Monday, September 16, 2019

Birth of a Nation: Art or Propaganda Essay

Mankind, engaging in war, driven by whatever instincts guide him, seeks to keep the defeats and victories of battle in his memory and on his conscience. To accomplish this men have used paint and canvas, ink and paper, or instrument and song in their effort to communicate the tragedy and glory of war. Never, before the career of D. W. Griffith had anyone attempted to bring the subject to film. The result of his efforts, weaknesses aside, mark a change in attitude towards film as a media. Perhaps audiences previously going to a picture expected emotional manipulation. After all, years before the film Birth of a nation, makers of film employed techniques to evoke pathos from viewers; whether through the use of a sobbing mother, a frightened child or what have you. In this respect the film was not a ground-breaker; However, through its effective use of devices such as symbolism, foreshadowing and allusions, as well as building on and arguably perfecting film techniques such as continuity editing, intercutting and close-ups, he transformed film from mere entertainment to art and propaganda. To present and explore a theme, symbolism is used everywhere in literature. Whether the image is subtle or obvious it is regardless a sign of considerable calculation and effort. In Birth of a nation Griffith places symbols everywhere, in doing this he merges literary devices of written works with his own visual works. For instance, the parched corn symbol in the scene where the southern army is eating symbolizes their desperation in the face of defeat. This imagery proves that Griffith wasn’t just presenting actors and a plot, he intended to dig far deeper than that, into the realm of a clever storyteller. Another example of his unique style is the use of foreshadowing, another literary device now commonly employed in film. The most prominent example of this is the scene where two gentlemen are talking, and as the camera pans down, we see a puppy struggling with a kitten. This is another strong example of symbolism; however, even more importantly it foreshadows the coming war. It is expertly placed to add to the building tension between sides which the audience already knows results in confrontation. Its placement reflects Griffiths desire to advance the complexity and diversity of film beyond entertainment to higher levels in society. To manipulate his audience’s emotions, he first had to draw them into the story and in turn into the stories underlying theme. He accomplished this by using numerous virgin film tools, much as an artist uses his own tools to create a believable painting. Among these tools he uses panoramas to illustrate setting, to paint, if you will – a moving picture. To show the swell of heated gunfire on a crowded battlefield i. e. the scene of the battle of Petersburg, or to bring across image of the delicate beauty of his native southern land to those who had never been there or seen a picture of it. This was the substance that transformed film into a genuine art form. Once he had the attention and anticipation of the audience, as well as their almost guaranteed acceptance of his word, he merely had to feed them a easily grasped, recognizable message to sway their emotions his way. This method of classic propaganda was used to fuel the audience’s already considerable ill-founded hatred of blacks. It comes in the form of a rebel black group who terrorizes the Cameron family, the film’s main characters. By placing blacks in this position it isn’t difficult to imagine the reaction of an average theatre goer. The film spawned riots, fired up racism, built stronger the negative stereotypes of blacks. It portrayed them as lazy, as illustrated in the black parliament, where a man rests his bare feet on a desk, alluding to uselessness in the employment environment. More horrifyingly than that it portrayed them as ultimately evil with the seizing of the Cameron’s home and the attempted rape of one of their daughters. The obvious bias presented, although appalling, demonstrates just how effective Griffith was at utilizing film not with the intention to merely entertain, but to spread propaganda and affect the perceptions of society itself. Griffith exploited his audience, he turned them against minorities and themselves. The film Birth of a nation exemplifies ignorance and hate at its worst. Although it stands for something that today is looked on as morally wrong, it proves by this very reaction that the film is not just mere entertainment, but something with a far more serious purpose. Since Griffith was the first to accomplish something of this nature, Birth of a nation therefore marks the transformation of film from pure entertainment into art and propaganda.

Sunday, September 15, 2019

Context and History of Conflict Paper Essay

This essay will discuss the issues between two people, Robert and Denise Patton, along with how these issues affect their two children. To enable an understanding of the problem a summary of the nature and history of the conflict has been given. In addition, a look at the interaction of interests, goals, and the power of each party allows an understanding of each person’s position and role in the conflict as well as personal attempts at resolution of the problem. In working to resolve this conflict there will be strategies discussed which, if Robert and Denise are willing to apply, could help them resolve the conflicts that they are facing in their marriage. Summary of the Nature and History of the Conflict The Patton Family case study has different types of conflict inside it. The summary of the conflict starting with the family dynamic gives a look of what is happening with the family from an outsider looking inward. To an outsider the family is in shambles; they fight regularly, and it seems that the parents have concern about one child only. In the beginning, the parents were happy; they both were on a path that looked successful. They both were in college and had great jobs after college. Once they started a family things changed for the couple. The mother wanted to be a part of the children’s lives more, so she quit her job and found another that worked with her schedule. The parents fought frequently about the youngest child and how to parent him. Since the parents were not getting along for a while the husband finally had enough. He decided to leave the house and tell his wife he wants a divorce. The husband and wife blame each other for the failed marriage, and the youngest child blames himself for his father’s leaving. â€Å"Without an apology or other form of resolution, the trust on both sides is compromised, and may not know what to expect from this person in the future† (Scott, 2011 p. 2). When the father left he never sat down with his children or wife to explain why it had come to this. The father finally had enough with his wife, but he did not explain his reasoning. Context of Conflict The context of the conflict is that two parents have separated after a long marriage resulting from arising conflicts in the marriage. The couple has two children; one who is almost an adult, and the other is a young child who seems to have trouble with his energy at home and at school. The conflict started to occur more frequently and more harshly as their second child started having problems in school. One parent, the mother, believes that there is something wrong with him and that he requires special attention with him all the time. A child with these kinds of behaviors would become costly and would require significant attention. The other parent believes that his son is just spoiled and requires normal attention and discipline. He further believes that these luxuries have left his son vulnerable with a lack of awareness for his surroundings. Whether or not the parents are splitting, they were a team trying to provide for their two children. â€Å"When managing conflicts, collectivist cultures place more emphasis on the avoidance and accommodation of conflicts because collectivists value harmony, security, and conformity† (Hong, 2008). Interactions of Interests, Goals, and Power The interests, goals, and power of both parents are that they cannot stand each other and need space in to function. One believes that he does not receive enough attention from his family and wife, and that they show no gratitude for his hard work. He has been working for many years and has primarily been the sole wage-earner in the family. The wife feels that her family does not appreciate her. She feels that she has lost her active role in the environment of her oldest child and husband. Her focus has been her young son who has been having these troubles at school and home. This amount of pressure has shut her out of everyone’s world except her son, who does not know what is going between the two split parents. According to the text the â€Å"conflict above may be substituting for intimacy and connection, or it may serve as a launching pad for problem solving† (Hocker & Wilmot, 2011). Attempts Made at Conflict Resolution There are competing family goals regarding Arnie (Wilmot & Hocker, 2011). Robert believes lack of discipline is the cause and wants Arnie to be held accountable whereas Denise believes there is a neurological basis and believes Arnie should be tested and treated according to his perceived needs. Though both parents have expressed ideas for dealing with the problem they have not agreed on a method, nor given significant consideration to the other’s opinion in this matter. The conflict has evolved and in the process a couple of resolution tactics have been used. Early in the conflict, aggression and competition were used, with each attempting to use power of position as a tool to win the battle. Rob made the money and determined it would not be used for mental health treatment; Denise was primary care-giver and as such was responsible for seeing that Arnie’s needs were met. Screaming matches to coerce the other into submission failed and eventually gave way to avoidance (Wilmot & Hocker, 2011). Withdrawal from the conflict equated to withdrawal from the relationship as the couple slept apart and ceased communication (Wilmot & Hocker, 2011). The interactions that did take place were interpreted based upon past events, setting the paradigm for what each could expect from the other, likely feeding into rather than helping to resolve the conflict (Coltri, 2010). Robert’s final act of avoidance was for self-protection; he moved out to protect himself from further emotional harm (Wilmot & Hocker, 2011). Personal Initial Reactions or Strategies for Resolving this Conflict Personal Initial Reaction The initial reaction to the conflict between Robert and Denise is that they should agree to mediation as a mean of solving their disagreement. Denise relies on Robert for complete financial support for their family. The problem here is Denise does not want to work because of their son’s neurological condition. Robert believes differently about Denise not wanting to work and feels that Denise is using Arnie’s condition as an excuse. Robert and Denise seek legal consultation, after Robert leaves the home. Strategy for Resolving this Conflict Legal consultation has it advantage but mediation would be better in this situation. Most lawyers discuss with clients if they should choose mediation based on their situations. Mediation would give the couple the opportunity to explain their side of the situation in privacy. Attorneys are contacted for legal advice but mediation is for solving issues and helping the couple to make the right decision. An attorney represents only the client who has retained his or her service and not for solving the problems. A mediator has a neutral part and only help in resolving the issues. Mediation taken place in courts is not private and the judge makes decision on the case. In the case of Robert and Denise, mediation would allow them to decide the outcome. The best thing for Robert and Denise is to have a mediator presence to help settle property, child support, and custody issues. According to Divorceinfo (2013) â€Å"The mediator remains neutral between the husband and the wife. That means the mediator can’t give advice to either party, and also can’t act as a lawyer for either party.† Conclusion Robert and Denise Patton seek legal consultation as a mean of finding ways of settling their conflicts. Legal consultation provides the couple with advice on the best avenue to take in solving their problems. Once the two meet with their lawyer, the couple is told if they should have a mediator there with his or her lawyer. Mediators do not represent either of the couple, only the individuals’ lawyers do.

Saturday, September 14, 2019

Consumerist Society Essay

What are the pros and cons of living in a consumerist society? Our world is one big shop. Everyone run, buy and scream every day for things they don’t even need. People become on big stampede which don’t care about anything else except goods. The most obvious advantage of living in consumerist society is better living standards. Consumers circulate turnover and that is how our standards of living is increasing. Another advantage is that people have wide range of products to select from. Everyone can compare price, size, color and anything thing else they want personally to fit their needs. Another important point is that shopping provides recreational activity for the whole family. They can get to the supermarket and spend there all day in recreational activities and shopping. As for the disadvantages of consumerist society that rich people gets richer and poor – poorer. While rich people enjoy their lives and don’t care about others, poor people get more and more into debt. Greedy employers exploit workers and make a huge profit. An even stronger argument against is that major production and consumption causes a lot of waste and pollution problems. From trash our planet started warming and it caused giant problems all over the world which are bigger than consumption. To sum up, I want to say that consumption is good if the people are not forced to buy what they don’t need. Everyone has a right to choose what they need. People shouldn’t be used as cheap work energy. Machines are created for that.

Friday, September 13, 2019

Discussion# 1 Assignment Example | Topics and Well Written Essays - 250 words

Discussion# 1 - Assignment Example ce entails integrating individual clinical expertise with the best available external clinical evidence from systematic research (Sackett et al, 2010). Essentially, the evidence based medicine requires that each clinician upholds their duty to stay in touch with the research literature and to implement best practice as a part of all clinical decision making (Sackett et al, 2010). The critiques of sackett defination of evidence based practice argue that Systematic research is the best quality research but it is not always available. For instance, the Nursing care, particularly in mental health, remains under researched. In addition, they argue that Patients should be involved in decisions about their care. Therefore, they say that Muir Gray definition on evidence based health care is the based. He defined it as an approach to decision making in which the clinician uses the best evidence available, in consultation with the patient, to decide upon the option which suits the patient (Muir, 2009). In my opinion, these definitions stress on facilitating decisions about assessment and intervention that are deemed effective and efficient for a given direct stakeholder On the other hand, the American Psychological Association defines EBP as the integration of the best available research with clinical expertise in the context of patient characteristics, culture and preferences (Gambrills, 2011).  Finally, another definition advanced by Schlosser and Raghavendra suggest that EBP is the integration of best and current research evidence with clinical expertise and relevant stakeholder perspectives (Schlosser, & Raghavendra, 2010). Notably, all the definitions stress three bases, which are the research evidence, educational expertise, and relevant stakeholder perspectives that are relevant and need to be integrated through the EBP process. Gambrills, E.   (2010).  Evidence-based practice: Implications for knowledge development and use in social work.   In A. Rosen & E.

Thursday, September 12, 2019

Organizational Structure Term Paper Example | Topics and Well Written Essays - 1250 words

Organizational Structure - Term Paper Example Therefore, top managements give particular importance to their organizational structures while planning and implementing business strategies. This paper will analyze the organizational structure of Toyota Motor Corporation (TMC) with specific attention given to its organizational functions and organizational design. Toyota: Organizational Structure Toyota has a unique organizational structure that has assisted the company to dominate the automobile industry throughout its corporate life. As Borowski (2010) points out, the General Meeting of Shareholders is the governing body of Toyota and the shareholders have a voting right in the General Meeting if they hold a minimum amount of shares. Toyota’s executive body is its Board of directors consisting of 26 members. The company’s Board of Directors comprises of the chairman, the vice chairman, the president, 8 executive vice presidents, 13 senior managing directors, an honorary chairman, and a senior advisor. In addition, t here are four committees that belong to the director board, including the Labor-Management Council, the Corporate Philanthropy Committee, the Stock Option Committee, and the Toyota Environmental Committee. The Toyota headquarters manages and coordinates 229 divisions (pp.3-4). Market analysts indicate that Toyota’s organizational structure greatly assists the company to facilitate effective strategic implementation. Referring to the views of Moore (2011), long term-thinking is central to the company’s organizational philosophy. The company management promotes the long-term thinking sometimes even at the expense of short-term financial gains. The author opines that this strategy has significantly benefited the organization to make potential management decisions and to enhance organizational learning (pp.141-143). Toyota’s strong organizational structure aided the company to earn $16.7 billion in profits and 6% sales growth in 2009 in spite of global financial cri sis 2008-09 that had severely hit the global automaking industry. Recently, the TMC has announced some noticeable changes to its organizational structure. As Bloomberg (March 6, 2011) reports, appointment of outside board members is one of the major changes declared by the company. Business unit organization is another change announced. Through this structural change, the company’s automotive business will be split into four distinct units namely Lexus International, Toyota No. 1, Toyota No. 2, and Unit Center. The company believes that this change would well define operations and earning responsibility and would fasten decision making. The TMC has also announced the reorganization of region groups in order to improve its products and services in growing markets. While comparing the organizational structure of General Motors to that of TMC, it seems that GM’s organizational structure is very weak and this issue ended up in the bankruptcy of the GM, the world’s s econd largest automaker. The company delivers its products and services through the seven divisions including Buick, Chevrolet, Cadillac, GMC, Opel, Holden, and Vauxhall. It is identified that the company’s operations are not well coordinated and there is no proper communication mechanism to facilitate up and down information flow across various management levels. As a result of a weaker organizational structure, the GM failed to address operational flaws in a timely

Wednesday, September 11, 2019

Political Potential of Citizen Journalism Essay

Political Potential of Citizen Journalism - Essay Example In such circumstances when reporting from the place affected by crisis becomes valuable and essential, those who earlier were simple observers take roles of journalists with the help of modern technologies. It makes professional journalists face a serious question about the future of their profession as information is becoming more available and easier to generate. A possibility to disseminate news within a click of a mouse is turning the whole process of information production into a tool of political influence and democracy establishment, and historical events in Eastern Europe and in Arab countries can serve as bright examples of the statement.   However, it is necessary to define what the concept of citizen journalism means as it has appeared quite recently and is still shaping. According to Bowman and Willis, citizen journalism is defined as the media content produced by citizens who take an active role in â€Å"collecting, reporting, and analyzing information and news† (2003, 9). Reasonably, it is the Internet that has played a crucial role in emerging citizen journalist phenomenon. Moreover, technological evolution and fast spread of innovations were important for accidental journalism emergence. A great variety of devices that are charged and plugged rapidly and connected to the Internet within seconds permitted almost every citizen to create some content from posts on Facebook to videos on YouTube. It allowed many people sharing their information instantly and also gave a chance to find the right auditory for this information. And the combination of these two factors: instant and relevant content and those wh o consume it was the primary factor in the phenomenon emergence (Bruns, 2005, 1).   The appearance of citizen journalism is closely connected to the introduction of digital culture.

Tuesday, September 10, 2019

Compare and Contrast Looking For Work and An Indian Story Essay

Compare and Contrast Looking For Work and An Indian Story - Essay Example Ethnic minorities give new insights into the notion of the family. In both stories the protagonists do not live in a traditional nuclear family setting. There is no father in the home or he does not play an active role in the life of the main character. The role of the head of the family is played by women: mother and aunt Greta. Soto’s mother impersonates the absent father by acting strict and feigning â€Å"a stern posture† (Soto 29). Mother’s authority in the family becomes evident when the author chooses her to share his ideas about the fist steps in family improvement, i.e. eating turtle soup. Soto’s mother tries to dissuade the main character by indirectly and repeatedly reminding him of his Mexican origin: she switches languages while talking to her son, calls him â€Å"a crazy Mexican† (Soto 29). Thus the family structure in the story is a traditional one since female-headed families are common in Mexican society (Kanellos 69). Aunt Greta, i n her turn, helps solve the problems second marriage of author’s father caused. She adopts her nephew since Indian concept of a family relies on bloodline not wedlock. She plays the part of the head of the family by educating the mind and the heart of her nephew. Basically the family types depicted in both stories are matriarchal. In both stories the choices made by the main characters are influenced by the family considerations. Gary Soto wants the best in life not for himself, but for his family. He dreams of wealth â€Å"that would save us from ourselves† (Soto 27). He talks about being invited to white people’s homes and front gardens as the prospect for all members of his household. Roger Jack’s decision to attend college is influenced by his aunt. She does not press or push him giving him time to â€Å"rest his brains† (Jack 58). His choice of college is based on its proximity to his home and in his first years he frequently goes home. No mat ter how similar the family structures in two stories seem to be, household atmosphere appear to vary. In "Looking for Work" Soto portrays dissatisfaction with his way of life. He is attracted to the polished TV image of quiet, unhurried family routine. The unknown lures the nine-year-old away from the world of scolding, beating, away from commonplace talks and belly laughs at the table. Instead of comfort and understanding, the protagonist witnesses beating and family rifts. Buttered toasts, mashed potato and turtle soup are substituted by the diet of beans and tortilla. The dessert has to be retrieved from the neighbors’ gardens. Soto’s desires and wishes have no impact on his family, he is mocked by his elder brother, and mother makes no attempt at understanding him. Roger Jack, on the contrary, lives in the world of carefully preserved and cherished traditional values. He believes that we â€Å"emulate those we love and care for† (Jack 52). He is taught to ta ke pride in his ancestry; spiritual side of his culture fascinates him. Knowledge is traditionally passed from the elders in the family to the children (Sandoval 73). So aunt Greta plays the part of the educator taking her nephew on trips to the places connected with Indian culture and pow-wows. She is dignified unhurried manners, which makes Jack value her and his culture. Families may differ in the expectations placed on children and parents. In Soto’