Political Economy of the European Union Essay Example | Topics and Well Written Essays - 2000 words - 1

Political Economy of the European Union - Essay Example states, assuring the  Ã¢â‚¬Ëœfreedom of movement of people, goods, services and capital’.  It preserves a common trade policy,  agricultural and  fisheries  policies,  and a regional development policy.  Fifteen member states have implemented a common currency, the  euro. It has build up a role in  foreign policy, and represents its members in the  World Trade Organization, at  G8  summits and at the  United Nations. Twenty-one EU nations are part of  NATO. It has also taken up a responsibility in justice and home affairs, which includes the elimination of passport control between many member nations under the  Schengen Agreement. (Alan, 2007) The EU functions through a hybrid mechanism of  intergovernmentalism  and  supranationalism. In particular areas it relies on agreement among the member states. However, it also possesses supranational bodies, thus is competent to make judgments without agreement between each and every national governments. Among the prominent institutions and bodies of the EU are the  European Commission, the  European Parliament, the  Council of the European Union, the  European Council, the  European Court of Justice,  and the  European Central Bank. In every five years, the Parliament is elected by the EU citizens. Origins of the EU go back to the formation of the  European Coal and Steel Community,  formed among six countries in 1951 and the  Treaty of Rome  in 1957. Thereafter the EU has expanded in size via accession of new associate states, and in authority by adding new policy areas to its remit. (Richard, 2006) Subsequent to the  Second World War, efforts made towards European integration were viewed as a get away approach from the intense forms of nationalism, which had ravaged the continent.  The  formation of the European Coal and Steel Community was among one such attempt to bring together Europeans. While having the unassuming aim of federal control of the formerly national coal and steel industries of its member nations, it

Group Motivation Inventory Essay Example for Free

Group Motivation Inventory Essay Majority of us humans get up from bed in the morning, set out for school or our job and practically do our daily routines in a way that is unique to us. We interact to our environment and the people around us without fully understanding why we are doing our routine – why we go to school or do great in our job or are amused from a particular activity. Nonetheless we all know that there is something that motivates us for doing this. Motivation refers to the things either internal or external to a person from which makes him enthusiastic and persistent on pursuing a particular course of action (Daft, 526). Studying motivation makes us understand what makes us people initiate a certain action, and what influences our selection of actions. After I took the motivation rating exam, I have a moderate level of group motivation. This means that I am not fully committed to my group but also not completely disregarding how my group will perform. After taking the exam, I realized that there are factors that affect a person’s motivation on a group. Some of these factors are: 1) composition of the group; 2) commitment and dedication of other members; 3) chemistry within the group; 4) appreciation of the group; and 5) each member’s contribution for the group’s success. Upon taking the exam, I became aware that the factor that mostly affects my motivation in a group is a member’s commitment and dedication to the group. This is maybe because I have the habit of giving my best on anything that I am doing. Having this attitude makes me compare what my contributions to the other members of my group. If I think that they are not as dedicated as me, my motivation becomes lower. Appreciation of the group is the next factor that affects my motivation. In my opinion, only a martyr would work on a group that does not value what he is doing. When it comes to the composition of my group, the only problem is that some of the members of the group are so shy to even tell their names. I have encountered this kind of members. They usually want to work on their own. The only thing a leader should do is give him/her what she will do and that is all. The composition of the group is essential to another factor, chemistry. The interaction within a group is also important when considering one’s motivation. Working with group whose chemistry is good usually leads to achieving the group’s goal. Contribution of other members to the group also affects my motivation. If all of the members participate well and contribute what they should give makes me want to also do my part well. On the other hand, if some members do not actually help with the achievement of our group’s goals, the other members, including myself, would have to exert more effort. Thus, we have to be more motivated. The motivation exam made me realize that I am moderately motivated when I am involved in a group. Unlike before, I think I can also measure the dedication of the other group members. With this, I am able to compare my level of motivation with the other members of the group. Only a little bit has really changed. I still do my part wholeheartedly. I try to attend all of the scheduled group meetings and do my best to help the group finish its goals. The only thing that changed is on how I interact with them. Usually before taking the exam, I only ask something to the group if I am having trouble understanding what I should do. I do not want a conversation other than the problems that the group is dealing with. Now, I talk to my other co-members about anything under the sun to further improve our chemistry. With each member’s trust and friendliness, I became a lot motivated. After taking this exam and analyzing my results, there are some things that I would change in order to further improve my participation and motivation in other future groups. First, I will improve my interaction to my future co-members. The chemistry becomes the â€Å"spark† of a good group relationship. If group members interact to each other with respect and friendliness, everyone will help on each. Thus, group goals will be done in a smooth way. In the future, I will also motivate my co-members. I will talk to them if I think they are not participating well in the group and encourage them that we are a team and we have to work together to be successful. There are some theories or approaches to further improve motivation within an organization. One particular theory is the Expectancy Theory associated to the works of Victor Vroom with a number of contributions from other scholars. The Expectancy theory implies that the degree of motivation of a certain individual is associated on his expectations on their capability to perform a particular task and the desired awards he will receive. Expectancy theory focuses on the thinking process present to an individual to gain rewards, not on recognizing what his needs are (Daft, 536). With this theory, I think that sharing my expectations to my co-members will further improve each of our motivations, thus improving the performance of the group. The factor that mostly affects my motivations, based on the results, is the commitment of the other group members. If other members do not do their part, my motivation decreases. I am not comfortable working with a group who is not as committed as me. In order to avoid this, confrontation is needed. Other member should be confronted regarding their attitude and their respective responsibilities to the group. In a sense, before the group does anything, rules should be made clear. Content Theories can also be used to improve motivation within an organization. One of these Content theories is the famous Hierarchy of Needs theory by Abraham Maslow. The theory suggests that there are five classes of needs that motivate a person existing in a hierarchical form. Maslow argues that needs with low-ranks should be the priority. These needs (from lowest to highest rank) are as follows: 1) Physiological needs – the most basic physical needs of humans; 2) Safety needs – the need for a protected and harmless physical and emotional setting; 3) Belongingness needs – the desire to be in a particular group with their trust; 4) Esteem needs – the need for appreciation and recognition within a group or organization; 5) Self-actualization needs – the need of self-fulfillment (Daft, 529-530). The suitable incentive for the group would be from the categories of belongingness and esteem needs. To improve motivation within the group, one should acknowledge each member for what he had done for the group. Appreciation should also be given to them even though their work is not that excellent. At least they have given their best. For every work that a member accomplishes, the other members should at least try to thank him/her. A simple line of â€Å"good job† will make a person exert more efforts and be more motivated. Reference: Daft, Richard. 2005. Management 5th Ed. New York: MacMillan Publishing Company.

Free College Essays - Our Town by Thornton Wilder :: Wilder Our Town Essays

Our Town by Thornton Wilder The Stage Manager is a man of many roles. Usually a stage manager is part of the non-acting staff and in complete charge of the bodily aspects of the production. In Thornton Wilder’s Our Town, the Stage Manager goes well beyond his usual function in a play and undertakes a large role as a performer. In Our Town the Stage Manager is a narrator, moderator, philosopher, and an actor. Through these roles the Stage Manager is able to communicate the theme of universality in the play. The main role of the Stage Manager is that of narrator and moderator. He keeps the play moving by capsule summations and subtle hints about the future. "I’ve married over two-hundred couples in my day. Do I believe in it? I don’t know? M†¦.marries N†¦.millions of them. The cottage, the go-cart, the Sunday-afternoon drives in the Ford, the first rheumatism, the grandchildren, the second rheumatism, the deathbed, the reading of the will-once in a thousand times it’s in teresting"(699). Here the Stage Manager is giving insight about George and Emily’s future. He is hinting about their life and fate to come. "Goin’ to be a great engineer, Joe was. But the war broke out and he died in France. All that education for nothing" (673). The incidents discussed about are great events in George, Emily, and Joe’s lives. The Stage Manage emphasizes that the short things in these people’s lives are overlooked. There isn’t realization that it is the small parts of their lives that make a difference. His role as narrator differs from most narration. The Stage Manager’s narration shows casualness. The casualness connects the Stage Manager to the audience. "Presently the STAGE MANAGER, hat on and pipe in mouth†¦he has finished setting the stage and leaning against the right proscenium pillar watches the late arrivals in the audience."(671) The informality is evident since he smokes a pipe, wear s a hat, and leans formally against the proscenium pillar. He also greets and dismisses the audience at the beginning and end of each act. The stage manager interrupts daily conversation on the street. The Stage Manager enters and leaves the dialog at will. He is also giving the foresight of death in the play. His informality in dress, manners, and speech, connects the theme, universality, of the production to the audience.

Visitor and The Speckled Band Fitting into the Short Story Genre :: Sir Arthur Conan Doyle Roald Dahl Essays

Visitor and The Speckled Band Fitting into the Short Story Genre The aspects of a typical short story genre are a misleading title, an unsure opening, little knowledge of characters, short time scale, little setting and a typical ending. In the two short stories ' Visitors ' and ' The Adventure of The Speckled Band ' there are aspects of both stories which show a typical short story genre. In ' Visitor ' the title is suggesting that the story will have a visitor of some description but this could be a relative, friend or even an unexpected guest. Also it may be a planned visit but either way the title is a misleading one. The visitor in ' Visitor ' is robber yet in this story a robber isn't an unwanted guest but an expected one. In reply the police are unwanted guests who not expected. " This is a robbery ", this is not the sort of thing we would call normal but in ' Visitor ' it is. The robbers in ' Visitor ' are " professional people " where as the police are not. With the police being described as " young men " something which normally would be described as robbers. The roles have been reversed in ' Visitor ' with the robbers being the usual visitors and the police being the unwanted visitors. The opening of a short story is always very unsure and brief. " Not again, not so soon! " here the audience is thrown straight into the story without really knowing anything about what is going on. The very start of ' Visitor ' is anonyous " she saw the mini bus ", gives the story a scared and nervous beginning. " The knocking was confident but not intimidating. Civilised ", This being unexpected as you wouldn't expect this of a robber but more of somebody you were expecting or somebody you were aquainted with.The thought of 3 men, 2 well proportioned, 1 normal size would normally be quite threatening but not in ' Visitor '. The characters in ' Visitor ' are normal yet unauthodox yet methodically they worked. The roles have been reveresed. With the robbers being civil and the police being unprofessional. There is no real main character and all of the characters are only briefly described. The universal figure in ' Visitor ', Mrs Morrison is somebody we as the audience find little about. Also with it being a short story there is not much time to envolve that many characters in it so there are only very few. The timescale of a short story is only very short and this can create

Hr Functions of St. Jude Children’s Research Hospital

HR Functions of St. Jude Children’s Research Hospital Lucinda West HSA320 November 12, 2012 Professor Dorothy Moore Strayer University Introduction The organization chosen is St. Jude Children’s Research Hospital (SJCRH). St. Jude is the first institution established for the sole purpose of conducting basic and clinical research and treatment into catastrophic childhood diseases, mainly cancer. SJCRH opened on February 4, 1962 and was founded by the late entertainer Danny Thomas. Its mission is to find cures for children with cancer and other catastrophic diseases through research and treatment.St. Jude was the first institution to develop a cure for sickle cell disease with a bone marrow transplant and has one of the largest pediatric sickle cell programs in the country. St. Jude has developed protocols that have helped push overall survival rates for childhood cancers from less than 20 percent when the hospital opened in 1962 to 80 percent today. St. Jude researchers and doctors are treating children with pediatric AIDS, as well as using new drugs and therapies to fight infections. No family ever pays St. Jude for anything (Hospital).Challenges Based on the data I have collected, some of the possible challenges SJCRH can face as a result of Harassment, Increase in pay, and Labor Unions are the following. There is a credibility gap between Human Resources, Executive Management, and the other organizational departments. There are people in HR with a variety of background education and skill sets that are not necessarily specialized towards the field they currently hold. Individuals come into HR management with their past experiences as a psychologist or clerical supervisor to name a few.The previous experience they bring to the table normally sets the tone for their current outlook in HR. As a result of the changes to the Americans with Disabilities Act, persons with disabilities can expect to work in safe surroundings without being discriminated against on the basis of age, gender, race, religion national origin, or personal preference. Specialists in compensation monitor an organization’s wage structure to ensure that pay equity exists throughout an organization.They recommend changes in the wage structure that are consistent with pay changes in the local community, industry, and individual occupations as necessary (Fallon & McConnell, 2007). Line managers believe that HR hinders progress by frequently obstructing what a department manager wants or needs to do. HR utilizes the policy and regulations to further pad their case as to why certain things requested by the line staff cannot occur (Fallon & McConnell, 2007). An executive level of management has a say in the payroll system. This arrangement is uncommon since this practice is commonly a part of finance or the HR department.Naturally there is going to be some form of conflict. Additional challenges in managing the relationship between HR and Labor Unions are, labor relations becomes a part of HR when there is an issue that has to be resolved. Labor unions do not see HR as a cohesive unit that should even play a part in their bargaining process. They see HR as the enemy. In HR’s defense they hold and know the policies, regulations, & bylaws that everyone (Labor Unions & HR) has to abide by in order for it to a fair and just decision regarding the employee(s). Impact of Rules/LawsTherefore invoking The Civil Rights Act (Title VII) (1964) has led to greater regulation of the employer-employee relationship by the government. The Act prohibits setting limits, segregating or classifying employees or applicants for employment in any way that deprives them of employment opportunities or otherwise adversely affects their status as employees because of race, color, religion, sex, or national origin. Ethics are important in any situation involving management. HR involves people and their means of earning a living, the importance of ethics in creases.Ethical behavior is taught to students throughout their schooling. Reminders of the importance of conducting lives in an ethical manner are important. Ethics is an underlying priority to all involved in the implementation of electronic medical records. Health professionals are in favor of electronic medical and strongly believe ethics is an integral part in healthcare and technology. Health organizations must remain committed to quality, privacy, and ethics. Continuous education of employees on these issues, ethics will remain a consistent principle in healthcare and technology.Another law and regulation that is going to affect SJCRH is the Health Insurance Portability and Accountability Act (1996). HIPPA consists of five sections or titles. Titles I, III, IV, and V address the issue of continuity and the ability to renew health insurance coverage for employees who change employers or otherwise lose their jobs, promote the use of medical savings accounts, and establish stand ards for long term care coverage. HIPAA eliminated the possibility of individuals being denied coverage because of pre-existing medical conditions. It further requires insurance companies to provide coverage for small employer groups or to ndividual employees who lose their group coverage. The significant section of HIPAA has been title 2, â€Å"Preventing Health Care Fraud and Abuse, Administrative Simplification, and Medical Liability Reform. † The Privacy Rule has affected nearly all health care plans and all health care providers. Physicians’ offices, hospitals, laboratories, pharmacies, dentists, medical equipment dealers, billing services and others providing administrative services have all been required to implement systems designed to protect patient information in all forms.All subcontractors and suppliers coming into contact with patient information must comply with the Privacy Rule. Developmental Tools Healthcare employees expect their employers to provide: Infrastructure, HR practices and support which are linked to improved performance especially in relation to patient care and service innovations. Public service values may be a strong determinant of performance as it relates to patients, moderating potential short-term adverse effects of unmet expectations of the employer. Training is imperative.There has to be a shift in the orientation of the healthcare personnel. Extensive direction is required through in-service and basic training. The perception of their role as simply delivering government health programs needs to be changed to being agents of health development. They need to be sensitive to the local needs. In addition to technical skills, they will need social skills to negotiate with other sectors, and communication skills for organization and empowerment of communities. Initial collaboration between the employee and the employer are vital.Meeting with the employer to gain an understanding of what is expected from the empl oyee from the onslaught of the relationship is a vital key to forming and maintaining conformity and cohesiveness amongst them. Establishing weekly or bi-weekly meetings would foster a positive and uniform working relationship that would ultimately benefit the organization in the long run. Best Practices What is most important in position description is the job analysis. This would include a detailed breakdown of a particular position description.It is vital that all of the most current duties of a particular position be included in this description because at some point the HR Manager will have to refer back to the details of the position. If all of the details are not included the organization is left vulnerable to accusations of discrimination (Fallon & McConnell, 2007). A recruiting best practice would be to advertise internally then externally and having local job fairs at conferences, colleges and universities. There are four (4) suggestions for recruitment and retention.One ( 1) attract a new generation of workers. Attracting younger generations to the healthcare workforce is essential to maintaining staffing levels and bringing fresh ideas to the organization. Younger generations are drawn to high-tech fields and seek work-life balance. Keep in mind the recruitment of younger workers may require a shift in traditional recruiting techniques to include such social media outlets as Twitter. Second, focus on hiring the right people. Behavior-based interviewing versus skill-based interviewing can build effective, long-term teams.Peer interviewing provides additional insight into whether a candidate may be the right person for the job. Third, seek feedback. Conduct 30- and 90-day interviews to gauge the perception of new hires. This will enable timely action if expectations are not being met. Fourth, provide a competitive benefits package. Appropriate compensation is a must, but clearly goes a long way. Organizations can enhance benefit packages by offering o n-site child care, concierge services, flex scheduling and housing allowance, among other things (Jarousse, 2012).Conclusion SJCRH is the first of its kind to benefit not only the parents because their child is being treated by the best at no cost to them, but also to the child because they are the number one priority of the hospital; not the amount the hospital can milk the family for. Some of the challenges they will face are as a result of harassment, pay increase, and Labor unions. Human Resources, the executive level of management, and the other departments are not as cohesive as they should be because they should all have the same goal in mind.The laws and regulations enacted have all been designed to protect the patient and their personal information. References Fallon, L. F. , Jr. and C. R. McConnell, 2007. Human Resources Management in Health Care: Principles and Practice. Sudbury: Jones and Bartlett, (October 2012). Hospital, St. Jude Children's Hospital Research. Quick Fa cts about St. Jude. Memphis, October 2012. Jarousse, (2012). â€Å"Best Practices for Recruitment and Retention. † American Hospital Association Health Forum: 2

Kids Free Time Train Games, Comic Books, and Attractive Plays

Kids Free Time Train Games, Comic Books, and Attractive Plays Games, Comic Books, and Plays for Kids You Need Have you ever thought about which games your children, siblings, or cousins play, or which comic books they read, or plays they watch? Recent surveys have stated that it becomes more and more popular to create multicultural games for 4-year-olds and comics books for kids. That is why adults do not understand or even do not like modern games or plays for kids since they are a little bit weird and suspicious for us. However, we should be conscious that you cannot forbid children to explore them just because you do not like them. Instead, you can encourage little boys and girls to choose train games designed especially for them. According to the World association comic books and train games for kids, new online games for 4-year-olds and comic books for kids aim to break the old culture stereotypes on the nationality, race, sex, etc. Thus, scientists believe that these new online train games for kids aspire to build a new world democracy system. Agree that it is much more pleasant to liv e in a world where everyone is equal and follows human rights. Therefore, we highly encourage you to read this short article we compiled for you in cooperation with psychologists, gamers, and government to help you to choose proper games, comics, and transmedia for our kids. Could you believe that teacher recommends your kid play a phone game? It is possible if we are talking about train games for kids. Many new primary and secondary education associations encourage their teachers to implement games for 4-years-olds and comics books for kids during their lessons. The latest surveys confirm the positive effect of such teaching methods since what could be better than playing games and learning something interesting simultaneously? We recommend you the list of toptrain games for kids that will broaden their knowledge and views.The first one called Honour Water. It is one of the train games that explains why the water is so vital in our life. Through singing songs, children find out how to preserve and protect water sources. It suits both iOS and Android. One of the next games for 4-year-olds and older is called Thunderbird Strike. It aims to explain to children the peculiarities of such natural phenomena as lightning and thunderstorm. The plot and the interface of all games are straightforward. Here, you should fight against the black snake and protect your territory. One of the popular train games is Spirits of Spring. It consists of many different tasks and levels you should complete alone or with your friends online. It teaches children to play together, to respect each other, and to avoid bullying. Furthermore, it demonstrates the perfect model of nature-human cohabiting. Add it into your games list. Never Alone is the name of one of the train games that has deep historic roots. The main characters are a young girl from Alaska and her friend a fox. They aim to save the entire world from something strange. The omniscient storyteller tells us the history of Alaska. Furthermore, it teaches children to build up a strong friendship and count on your friends and relatives. One of the games for 4-year-olds and older is Sleep Guardian. As you may guess, it teaches children why it is important to sleep at least 8-10 hours per day. You should protect the main character, a little girl, and help her to fall asleep. Also, it helps to cope with nightmares since the game explains that it is only our imagination and there are no real reasons to be afraid of your bad dreams. Invaders and Survivance are the titles of the next two train games for kids. Both of them aim to teach your child to think logically and analyze information quickly. It motivates them to communicate with others and be open-minded. Furthermore, both include some surviving strategies all kids like to explore. Do you like puzzle train games? If yes, then you will like Gravity Ghost. It is a simple puzzle game for children of almost all ages. Some argue that it is too dull for the new generation. However, the game developers have updated it and made it perfect even for a very demanding customer. This game aims to teach children how to concentrate their attention, cope with difficulties, and successfully finish each their case. Our next recommended game from the list of the best train games for kids is called Path of the Elders. This game tells us about the Treaty 9 a well-known agreement in Canada in 1905. With the help of interactive tasks and multiple choices tests, children can easily find out all the details of this historic event. Furthermore, it teaches us to love our past, old people, and be thankful for all we have right now. It perfectly suits for primary and secondary schools! There are also some eternal train games for kids even your parents play. For example, who does not know about Making Camp, Spirit Lake, Forgotten Trail, or Fish Lake. All these games will be exciting to play alone or together in a big company.Nowadays, it is also popular to read comic books for kids to improve their reading skills. We offer you the most popular and high-rated comic books for kids of different ages.Naw-Pea or NAPI is the main character all children love for his unpredictability and adventures all over the world. It helps your kids to explore the world quickly and make their journey breathtaking. Furthermore, this journal releases each month on another topic. There are also different reading levels for all ages. Do you like traveling? If yes, then The Secret of the Starts is for you. It is one of the comic books that helps to learn about our planet and natural phenomena. The main character is a young man who travels around the world and explains interesting and gripping facts about nature and the world around us. Moreover, he teaches us how to cope with our first problems that seem enormously big. The Wool of Jonesy is perfect for those who want to find out more about life after high school. The main character personally checks all stereotypes, illusions, and myths on this topic. If you want to come back to a hundred years ago, Hero Twins is for you. It is one of the comic books for kids where you can find a short historical background of the 1860s and find out about two brave twins who aimed to protect children on the southwest. Thus, a lot of children want to be like these two heroes. If the previous comic book was mostly for boys, Sila and the Land perfectly suits for girls. The authors are three young women from different countries. They created this comic book aiming to explain to children that there is no difference where you live, we should take care of our planet. Many picturesque and colorful images make this journal one of the best comic books for kids.There are also some plays for kids, but they are less popular than the previous two categories. However, we highly recommend you watch the transmedia Kagagi: The Raven and Sesquie VR: Meridian. The first one is a novel about a 16-year old boy who is a superhero and has to save the world. The second one is a composite of six stories. You can choose one by yourself and influence the final results of the story by your actions. Both plays for kids are available online on different webs. Although all these games, comic books, and plays are for kids, we highly encourage you to play, to read, and to watch together with your children, cousins, brothers, and sisters. First of all, you will spend priceless time together; just believe our professional team and readers feedback. Second, you will understand better a new young generation and even maybe change your thoughts and views. We hope this article was useful to you and your kids! See you! Good luck!

Essay Sample on Empathy in Patient Care

Essay Sample on Empathy in Patient Care Empathy is generally defined as the identification with, and understanding of another person’s situation, feelings and motives. While empathy and sympathy are two closely related notions, I believe that the subtle difference between them can be found in the idea of identification. For, while sympathy says I understand how you feel and commiserate with you, empathy goes a step further and says I feel what you feel. Such an ability to project oneself into another’s experience can only be rooted in a love for humanity. Is it possible for a physician to be scientifically proficient and objective while also being empathetic? Theoretically, yes; but practically, it depends on the physicians motives for being in the profession. It all goes back to this love for humanity, which Plato associates with a love for the art of medicine. I do not take this love to necessarily mean a warm, fuzzy feeling toward patients, nor a wallowing in commiseration with them. Rather, I see it as an ability to suffer long, to be kind, to not parade oneself, and not behave rudely. Most importantly, I take that love to mean seeking the highest good of the patient. Such a love, coupled with the understanding that the art of medicine, as Blumgart puts it, is the skillful application of scientific knowledge to a particular person, can be a strong motivation to continually seek both scientific proficiency and a deeper understanding of a patient. This is all the more important that about half of the patients who consult a physicia n reportedly have no organic disease or only minor disorders. Objectivity and empathy are not mutually exclusive notions in patient care, as long as the highest good of the patient remains the primary goal.

Free Essays on Twelth Night Act 3

and wit. The result of which adds an interesting dimension to Viola by merit of her quick wit and clever thinking. The portrayal of Viola as a bright, self-sufficient, and accomplished female almost makes her a foil to the gullible and flighty Olivia. Scene one begins with Viola/Cesario returning to Olivia’s house to continue the Duke Orsino’s overtures. In the garden, she meets Feste the Fool. The conversation that follows is heated and reveals a great deal about Feste’s role in the play. Feste is shown to be not just a comic relief figure, like Sir Andrew; he is perceptive when others are not, as Viola notes after the encounter. The conversation is so spirited, because Feste and Viola actually have a good deal in common; both are paid servants who are much more than they seem to be, and hence p... Free Essays on Twelth Night Act 3 Free Essays on Twelth Night Act 3 Act three opens at the garden adjoining Olivia’s house. This garden is where lines 1 – 100 will occur. Often times the garden is portrayed onstage as a courtyard with real plants, a backdrop, or a combination of both. Several columns are usually added to Olivia’s house and the courtyard in order to add a Mediterranean atmosphere to Shakespeare’s Illyria. Twelfth Night takes place in Duke Orsino’s court, Olivia’s house, Olivia’s garden, and to a much lesser extent on a street and beach of Illyria. This allows for the production to have fairly elaborate scenery, because the set changes are simple and far enough apart to accommodate the minor adjustments that transform Olivia’s house into Orsino’s domicile. A play on gender and sexuality is the main action of Twelfth Night; however this scene focuses on the importance and duality of words. The primary action of act three, scene one occurs in the dialogue. What ensues is a brilliant example of Shakespeare’s mastery of the English language. Instead of the physical fighting found in Romeo and Juliet or Hamlet, Shakespeare creates a playful bandying of words and wit. The result of which adds an interesting dimension to Viola by merit of her quick wit and clever thinking. The portrayal of Viola as a bright, self-sufficient, and accomplished female almost makes her a foil to the gullible and flighty Olivia. Scene one begins with Viola/Cesario returning to Olivia’s house to continue the Duke Orsino’s overtures. In the garden, she meets Feste the Fool. The conversation that follows is heated and reveals a great deal about Feste’s role in the play. Feste is shown to be not just a comic relief figure, like Sir Andrew; he is perceptive when others are not, as Viola notes after the encounter. The conversation is so spirited, because Feste and Viola actually have a good deal in common; both are paid servants who are much more than they seem to be, and hence p...

Environment Essay Example | Topics and Well Written Essays - 750 words - 1

Environment - Essay Example A continuing increase of greenhouse gas emanates from the burning of the fossil fuels from the ground. Burning of coal is not logical enough since it increases the amount of the carbon dioxide to the environment. According to United Nations environmental study, carbon dioxide emissions to the atmosphere can stop by burying the biomass and pickling of trees. The increment of global temperatures leads to increased melting of snow ice and the rising of the sea level evidently shows the warming of the globe. The warming is determined by high average temperature near the earth’s surface. The temperature increases due to depletion of the ozone layer directly hit by the ultraviolet rays (Haldar, 2010). Temperature rise resultes into many disasters including the formation of cyclones, causing mass destruction to human life and property. The hurricanes, tornados and the typhoons are the worst calamities ever and have claimed several live of individuals. Absorption and emission of the infrared radiation by gases in the atmosphere warms the planets lower atmosphere and the surface. This process means the warming effect of about 33% of the stratosphere. The cutting of trees for energy and other industrial functions increases the quantity of carbon dioxide to the atmosphere, therefore, contributing to global warming. It accounts for 7 percent of the greenhouse gas emission. Forest act as the sink of the carbon dioxide within the atmosphere thereby playing a vital role in controlling the amount of heat produced to the environment. They also help in the absorption of the much water poured inland during the cyclones. Aerosols produced by volcanoes and pollutants from industries causes global dimming and the gradual reduction of the amount of solar reaching the earth surface. Aerosols bring a cooling effect by blocking the direct sun from reaching the earth surface, therefore,

Radiation Research Paper Example | Topics and Well Written Essays - 2500 words

Radiation - Research Paper Example UV radiation comprises only about 5% of total solar radiation but is biologically important, as exposure to this part of the spectrum might lead to damage of cellular DNA and thereby increase the risk for skin cancer. Descriptive epidemiological data strongly indicate a link between solar radiation and malignant melanoma. Studies of have suggested that the risk for melanoma is related to exposure to solar rays at the place of residence in early life. Some 5% of solar radiation is within the ultraviolet spectrum and may cause both malignant melanoma and non-melanocytic skin cancer; the latter is regarded as a benign disease and is accordingly not included in our estimation of avoidable cancers (Edmund Kennet Karuth, 2011). Ionizing radiation is classified as either particulate or electromagnetic. Charged particles such as electrons (beta minus particles), protons, alpha particles (helium nuclei) and heavy ions can ionize directly. Uncharged particles, notably neutrons, interact with the nuclei of the atoms through which they pass and give up their energy to produce recoil protons, alpha particles and heavier nuclear fragments, which go on to produce ionizations. The important characteristic of ionizing radiation is the local release of large amounts of energy, sufficient to break strong chemical bounds that are biologically important. Electromagnetic ionizing radiation consists of X and gamma rays, which give up part or all of their energy to the orbital electrons of the atoms through which they pass, producing fast recoil electrons that have sufficient energy to be ionizing. X and gamma radiation differ only in the way in which they are produced, gamma being produced by the decay of radioactive isoto pes and almost all X rays being made by electrical machines. For radiation initiated or formed, there is a process. To begin with, we classify radiation as either particulate or electromagnetic. Charged particles such as electrons (beta minus particles),

Leadership Essay Example | Topics and Well Written Essays - 1000 words - 5

Leadership - Essay Example A person’s beliefs, values, character, and ethics play a big role in determining what kind of a leader they will be. Today, we experience both good and bad leadership in different situations. Bad leadership is harmful to the society in many ways, therefore, should be avoided. Good leadership is what the society should adopt, as this is beneficial in many ways. This essay will therefore, address the concept of good leadership, and some of the steps one must follow to ensure good leadership. Knowledge and skills contribute to the leadership process. However, personal attributes such as values, and character, are the ones that make a leader to stand out among all the others. For instance, in order for one to practise good leadership, they must be impartial. This enhances trust and credibility of the leader by the people. These are aspects that are earned by the leader, and do not merely come with the position. However, if a leader acts ethically and professionally, they will be a ble to win trust of the people. Impartiality mainly refers to the treatment of everyone in an equal manner, devoid of favouritism. This improves relationships between the leader and the people, since the people will be sure that their leader does not have hidden outcomes in their position, neither will they question motivation. In this case, a leader must therefore, apply equal standards to all people and perform unbiased evaluation. Good leadership requires strong confidence. A good leader must therefore, be confident in themselves. Confidence includes a leader having an honest understanding of who they are, their skills and knowledge, as well as their capabilities. This is the first step of confidence on the leader’s side. Similarly, the people must have strong confidence in their leader, as this will prove that the leader is effective. The people judge and determine the effectiveness of their leaders. Therefore, if people do not trust their leader or lack confidence in the m, this means the leader is poor. Therefore, a good leader must work toward building their confidence, as well as the confidence of the people they lead. This is because; one must prove to people that they are capable of good leadership. For good leadership, a person must be capable of learning from their mistakes. Normally, it is always hard for people to accept their mistakes and take lessons from them. However, as a leader, one must be ready to accept their mistakes and learn lessons from them. This is an important step in learning, growing, and improving in the leadership position. A good leader must therefore, not blame their mistakes on the people, but admit them, as this is known to accelerate immense progress. If a leader made a few failures in the past, this should not deter them from moving on. They must have the confidence and courage of learning from their failures, and using the failures to produce success. Mistakes and failures are crucial in leadership, as they offer the leader more experience in specific situations. It becomes probable that after making a certain mistake, or failing terribly in a specific situation, a leader might not repeat the same mistakes in the future, and they will not fail if the same situation presents itself in future. Therefore, accepting past mistakes and learning from them, makes a good leader. Good leadership involves putting the needs of others first. This is the virtue of selflessness. True leadership requir

Economics - DQ 2 Essay Example | Topics and Well Written Essays - 500 words

Economics - DQ 2 - Essay Example However, the point where marginal cost and marginal revenue intersects represents output which is less than maximum capacity. Thus, there lies inefficiency in production as these firms control the level of supply in order to regulate the prices. This is true in the real world. For example, monopolist firms in developing countries especially those in the provision of public utilities like water and utility set prices too high while controlling quantity. They do not operate in their full efficiency in order to bid up the prices of their goods and services. Thus, most countries where utilities are monopolized are where the highest electricity costs are found. Monopolists take advantage of the situation by using their capacity of influencing price level. Globalization is characterized by the entry of foreign firms in the domestic market and vice versa. This is also a process by which business organizations operate anywhere in order to take advantage of profit opportunities. Globalization is seen as the way of increasing the number of competitors in the market through the entry of new players and the survival of the most efficient ones. Yes, globalization intensifies the market competition in a given country. It is irrefutable that multinationals or huge business organizations operating on three or more markets have gained significant economies of scale and are the most efficient ones. The entry of these players in the domestic market often threatens the local players who are less efficient. Thus, competition heats up as these smaller players cope with the ability of large foreign firms to operate more efficiently and profitably. In so doing, it also tries to safeguard its shares by equipping itself with competencies. Local manufacturers often go beyond their limit. The entry of foreign players pressures them to improve their processes, strengthen their brand image, produce higher quality products, and even double

Down the Hatch Essay Example | Topics and Well Written Essays - 1500 words

Down the Hatch - Essay Example All this made her to remember what happened on the previous day. She and Ingrid her friend was in deep sleep; it was a quirk of fate because nothing can be asleep when the alarms are sounding off. However, it did wake them up because the alarms were a signal that a tornado is in close proximity and not a signal for anything mundane. A possible disaster brings with it a list of things people have to do to save their lives and number one on that list is the flight to a shelter. Hence, acting fast and evacuating all the breathing mortals will save as many lives as possible. That is why both of them ran to the barn but there was no one there, not even the horses although they usually prefer to stay where they are when a disaster strikes them. Only Katrina's dog, Amber, was there; perhaps waiting for her to show up. She didn't want any animal to feel disowned under such circumstances, for she was a caring human being above anything else. Now, she reflected, she had to shelter herself and the other two from the grueling tornado. Katrina let out a peaceful sigh and looks out the window in the living room. She sees no one. Letting her gaze wander towards the sky, she notices that they turn in vivid shades of orange and green just as her eyes fixes on it and the air comes to a standstill. The sheer action seemed like a premonition of some sort. The sinister atmosphere, that resulted, alone was trying to disturb her peaceful and tranquil soul again. An adventure had occurred with Katrina and her girlfriend yesterday; it was surely an intimidating day for her but she had acted in a cool, calm and collective way and had defied all the scariness out of her. The clouds formed a thundering sound and the rain then poured with a renewed energy, Katrina didn't know it was capable of producing. Remembering what to do, Katrina, her girlfriend Ingrid and her dog Amber, took refuge in a strapping shelter situated below that barn's floor. Sited in the barn was a hatch that opened to a safe haven. Katrina and Ingrid were conversing about the vice that tornados seem to bring in the lives. The vice that make a man wonder how God can allow such things to happen to ordinary people out of the blue as they, in their sight, weren't able to do anything extremely dire to evoke the anger in God this bad. They disagreed because Katrina held a firm belief in God and thought of Him as a God and nothing else. It may stir up guilt in her later to think of God in a negative manner. The disparity between their views was mainly due to their different religions. Katrina felt disturbed as she had always tried not to bring up any talk of religions, her or any other's, between them. It only created resentments in such a beautiful relationship. "Once we were late in evacuating all the animals and so lost a couple of horses and since then, Mother tells me we never found their bodies even." Katrina said trying to steer the conversation in a new direction. Thus, they started talking about their favorite animals; Ingrid loved birds but Katrina liked the four-legged creatures better. It was startling just then to observe the discrepancy between the two friends because of the way each of them were responding to the present circumstances. For the reason that where Katrina was a simple Midwestern Christian farm girl; Ingrid was a skittish East Asian Buddhist free willed girl. Tall, lean and wary with a

Economics - DQ 2 Essay Example | Topics and Well Written Essays - 500 words

Economics - DQ 2 - Essay Example However, the point where marginal cost and marginal revenue intersects represents output which is less than maximum capacity. Thus, there lies inefficiency in production as these firms control the level of supply in order to regulate the prices. This is true in the real world. For example, monopolist firms in developing countries especially those in the provision of public utilities like water and utility set prices too high while controlling quantity. They do not operate in their full efficiency in order to bid up the prices of their goods and services. Thus, most countries where utilities are monopolized are where the highest electricity costs are found. Monopolists take advantage of the situation by using their capacity of influencing price level. Globalization is characterized by the entry of foreign firms in the domestic market and vice versa. This is also a process by which business organizations operate anywhere in order to take advantage of profit opportunities. Globalization is seen as the way of increasing the number of competitors in the market through the entry of new players and the survival of the most efficient ones. Yes, globalization intensifies the market competition in a given country. It is irrefutable that multinationals or huge business organizations operating on three or more markets have gained significant economies of scale and are the most efficient ones. The entry of these players in the domestic market often threatens the local players who are less efficient. Thus, competition heats up as these smaller players cope with the ability of large foreign firms to operate more efficiently and profitably. In so doing, it also tries to safeguard its shares by equipping itself with competencies. Local manufacturers often go beyond their limit. The entry of foreign players pressures them to improve their processes, strengthen their brand image, produce higher quality products, and even double

Developing an Implementation Plan Essay Example | Topics and Well Written Essays - 1250 words - 1

Developing an Implementation Plan - Essay Example Such resources include funds, equipment, transport and official recommendations among many others. Obtaining approval for a new solution or project is not an easy task. The first task in this process is convincing the leadership that the solution is relevant and effective. First of all, I will request for a meeting with the relevant authorities for the purpose of presenting my solution to them. I will then prepare thoroughly before the meeting, ensuring that I am fully conversant with all matters regarding the solution so that I may be able to satisfactorily answer all questions asked and, therefore, provide a good impression. This will prevent the leadership from turning down the solution because of my failure to provide sufficient information about it, and proving to them that the solution is more effective than current solutions. During this meeting, I will confidently explain the solution to the hospital authorities while trying to keep the details as straightforward as possible. I will then provide them with an opportunity to ask questions, criticize the solution, or provide their own opinion which may help to improve it. After obtaining the approval of the healthcare authorities, the next task will be to obtain the support of fellow staff. This is necessary because fellow healthcare staff participates in the process of testing the solution to determine its effectiveness. Furthermore, they will be the ones to apply the solution if tested and accepted, to evidence-based practice. Its final application in evidence-based practice will not be fully successful if not all the staffs are convinced of its relevance to the self-management of juvenile onset diabetes. In order to obtain their support, I will approach them and explain the solution to them, and how it will benefit them in their practice, and their patients in the management of their condition. Afterwards, I will give them the opportunity to critique the solution and provide their opinion so as to impro ve it and eliminate any weaknesses that I may have overlooked. I will then modify the solution in accordance with suggestions which are relevant. Description of Current Problem Current methods of managing diabetes mellitus type 1 involve insulin replacement therapy, dietary management, and careful blood glucose monitoring using glucose monitors. Current methods of glycemic control are quite complicated and, therefore, juveniles with diabetes type 1 mellitus have to visit the hospital on a regular basis for accurate blood glucose level checks. Additionally, they have to visit a healthcare facility during cases of sudden hyperglycemia or hypoglycemia which may have adverse effects on health. Recent advancements in medical technology have considerably simplified glycemic control and reduced the need to visit a health facility for checkups. This is because these new technologies have simplified continuous glucose monitoring (CGM), making it possible for juvenile patients to manage effec tively their condition without having to visit a healthcare facility. For this new solution to be successful, patients have to be thoroughly educated on the methods of glycemic control, self-administration of insulin, and dietary management. Detailed Explanation of Proposed Solution For juvenile patients to control their type 1 diabetes effectively, they need to make independent decisions on a daily basis concerning insulin intake, diet, and exercise.

American Revolution Essay Example for Free

American Revolution Essay In many societies, music has been a way of life uniquely defining a particular society. Centuries ago, the now African Americans were taken to America as slaves. They went with a rich African musical culture applying it in their places of work like the fields. There they sung work songs, field hollers, chants and shouts. In the 19th century they were granted freedom under the American Revolution and this had an effect on their lives. They could no longer meet in the field where they sung communally they still needed a way to self express themselves. They therefore adopted a more self centered and personalized kind of music the so called blue music. Blue music was not actually a new kind of music, but it was a new concept in music that was personalized. Much of the former songs they involved a group of people in performance. There were soloists and the respondents. However, this new concept in music was more personified, the singer responded to himself or herself. There were teachings that existed, the Haratio Alger model, and which also led to emergency of blue music. The assumption that one self destiny was influenced by him/herself motivated personalized kind of life and therefore the blue music (McElrath, J 2000) Blue music is very important in African American music platform. Over the years, it has evolved from blue, to rhythm and blues (RB) to the hip hop a popular kind of music in the modern world. The introduction of the guitar to the rural black habitations in the post civil war periods was significant in the emerging of blue music. They could now play more flattered notes otherwise called the blue notes. It also influenced other kind of music for instant the rock music, jazz tunes, guitarist music. (New York Times, 2007) Blue music was not limited to anyone. Unlike other kind of music, they were not based on age, season, setting or even location. In fact, they were played by all ages, at any season, any setting for instant workplaces, homes churches. Their main target was expressing immediate individual feelings, pain, hope, desire, pride and suffering. (Campbell et al, 2004) Blue music evolution can be classified in terms of time and location. The Mississippi Delta area came up with a highly charged style of blue music performance which was of high degree. These were termed as Delta Blues. They were mainly slow tunes pioneered by music icons like Charley Patton (1934) Son House and Robert Johnson (1937). They guitar acted as a vocalist where it was played using a glass slide. This was different from the Ragtime Blues that existed in the middle south. These blues were light hearted. The singers used their fingers especially the thumb establishing a recurring bass picking a melody that emphasized the off beats. Blind Boy Fuller (1941) and Blind Blake (1933) pioneered this kind of blues. The religious blues is another classification in blue music. Mainly they were sacred drawn from the ring shouts and spirituals that came before them. Blind Willie Johnson (1949) pioneered this class. There was migrating to the urban centers by the African Americans. There was need to reformat this kind of music to be more attractive and involve dancing. Previously, it was surrounded by some irregularities. This led to a class of blues called the Urban Blues. William Christopher Handy (1958) is an important icon in this type of music. This was significant to Jazz singers. As time went by, the blacks needed to adapt to the urban cities. Those talented in singing had to be vigorous. They started singing even in clubs and bars. These places are generally noisy and needed an improved guitars sound to counter the noise. They started using the electric guitar evolving blues to what was called the electric blues. This occurred the period after the World War II. Important icons included Muddy Water, Howlin’ Wolf and B. B King. Thereafter, blue music influenced the emergency of RB that combined Jazz and pop too. (New York Times, 2007) The migration to the cities came with its impact. The African American women popularized the classic blues. In the cities, they had freedom over rural beliefs and stands. They could now sing out of the church. On the other hand, there was need to perform in entertainment, theaters clubs and dance halls. Women therefore started performing in these places. 1920s was significant for this kind of blues after Mimic Smith’s recorded ‘crazy blues’ which motivated other classical blues singers. (Arc Catalging Genre Help sheet, 2002) The classical blues popularity declined with the rise of the country blues. The success of classical blues motivated recording companies to market more as those recording classical music made a lot of profits. There emerged competent male singers taking over the blue music field. (Chart communication Inc, 2006) Like any other kind of music, the blues have had an impact in the previous society, the present and will continue to the generations to come. Far from influencing the emergency of RB music and hip-hop, it has changed the lifestyle of people. Most of music stars are modeled by many people especially in their personality and fashion a base where many fashion developers advertise their products. Many people especially the youth have modeled these stars adapting their dress cord, personality, dancing style and others. Most of their video shooting incorporates seductive and suggestive moves if not romantic. Therefore it has had an influence on people’s sexuality behaviors. Due to its music culture, it has promoted drug abuse in the society especially among the youth. Some music stars are substances abuser and a model can adapt such personality. Music has an effect on people feelings. In fact, blues are associated with personified feeling and therefore can influence crime by either promoting it or causing incitement. In history of blues, its evolution was highly characterized by performance in leisure places. It has influenced clubs, entertainment, dancing and alcohol use among other issues. (Jelsoft Enterprises, 2008) Generally, the nature of blue music has influenced not only the entire music industry the lifestyle of human beings but also other dimensions of life; economic, culture religion, politics and social. The notion music is life is real considering its impact in the society. We can not derive that humanity is directly influenced by music and its effects that ranges from relaxation to incitement. Blues music is not an exception in this. Its popularity not only in United States but also in the entire world has economically empowered nations. African Americans economical capability has relied on entertainment, primarily on blue music. It has in turn influenced the economy of the entire nation. The recording firms have emerged providing employment to the entire population and economically empowering the stars. The hip hop music has its roots on blue music. The rise of hip hop culture therefore can primarily be based on the blues music. It has therefore influenced culture significantly. In religion, music is one element of communication especially in it information delivery target. Indeed, most of the inspiring gospel music, the so called worshiping music, is blues. They have influenced prayers and the entire religious doctrines. In politics, blues have been composed to send messages and inform people about issues related to politics. In fact, they have been used in political rallies to emotionally move people. In Russia it was associated with post communist phenomena’s. Not only have they been used in politics but also in social context. Blues have a reputation of being a base for most re known love songs and emotion expressions. These songs have been used in marriages, reconciliation and have had a big impact in social settings. Music impact on humanity is profound. Their influence on life dimensions seeks its greater attention. Over the past years, the industry has recommendably been exploited changing the whole world. Pointing to the African Americans, their reputation has been characterized by their impact on entertainment industry especially the music industry, of course their music superiority rooting from blues. It is therefore worth to lift blues music, modernize them and mod it in a way that it will affect many other generations to come. We need to lift the burn that music is life and therefore, there is life in music. References: Arc Catalging Genre Help sheet (2002) classic blues. Retrieved on Friday, November 14, 2008 from http://www. arcmusic. org/features/blues_guides/classic_blues. pdf Blood. Retrieved on Friday, November 14, 2008 from http://www. colinlinden. com/Media_Room/Reprints/chartattack. com_- _Jan_25_2006_-_Country-Blues_Runs_Deep_In_Colin_Linden_s_Blood. pdf Campbell, J, Chilcoat, L, Derby, S, Greenfield, B Heller, B. C (2004) USA: Lonely Planet. Jelsoft Enterprises Ltd (2008) Sociological Observation: Impact of Music on Society. Retrieved on Friday, November 14, 2008 from http://path-to- peace. com/community/showthread. php? t=23 McElrath, J (2000) The Blues and the Development of Personalized Song: about. com. Retrieved on Friday, November 14, 2008 from http://afroamhistory. about. com/od/bluesmusic/a/bluesmusic. htm New York Times (2007) The New York Times Guide to Essential Knowledge: A Desk Reference for the Curious Mind: Macmillan.

Burgess and Martin Dehydrating Reagents

Burgess and Martin Dehydrating Reagents An understanding of synthetically useful dehydrating reagents for the reduction of hydroxyl groups, various functional group interconversions and other synthetically useful operations. Oday Alrifai Dehydration of alcohols has been a synthetically useful strategy in order to attain olefins in high yields through the treatment of secondary, tertiary and homoallylic alcohols. Martin sulfurane and Burgess dehydrating reagents have been useful because of their mild and selective properties on alcohol containing species. [1] Both reagents have made a significant contribution in industrial and academic applications, aiding in the synthesis of natural products and drugs. The Burgess Reagent, known as Methyl-N-(triethylammoniumsulphonyl)carbamate (Figure 1), is an interesting reagent assisting formations of 5-membered heterocycles, initially derived from the acyclic precursor by dehydrative treatment. [1] It was first discovered by Edward Meredith Burgess in 1968, but was not given much attention until Peter Wipf proposed the idea of heterocyclic formation. Further research on this reagent, such as the preparation of isocyanides and nitrile oxides from formamides and nitroalkanes, respe ctively, have been investigated. [1] Figure 1. Structure of Methyl-N-(triethylammoniumsulphonyl)carbamate, also known as Burgess’s dehydrating reagent. [1] Similar to the Burgess reagent, Martin reagent (or Martin sulfurane) is another dehydrating reagent possessing high reactivity to allow the production of alkenes, with diphenyl sulfoxide and a alcohol as minor products, occurring fast (approximately one hour) and at below room temperatures. [2] It was James C. Martin who discovered this stable, moisture sensitive sulfurane, also known as bis(ÃŽ ±,ÃŽ ±-bis[trifluoromethyl]benzyloxy)diphenyl sulfur (Figure 2), in 1971. [2][3] Similar to the Burgess reagent, the mechanistic action may be similar, via E1 and/or E2 (or cis) elimination, in order for the treatment of secondary and primary alcohols, respectively. [3] Also similar, cyclic heteroatoms have been more favorable in synthesis, due to carbenium ion rearrangement, via alcoholic dehydration. [3] Figure 2. Structure of bis(ÃŽ ±,ÃŽ ±-bis[trifluoromethyl]benzyloxy)diphenyl sulfur, also known as Martin’s sulfurane or Martin’s dehydrating reagent. [10] Preparation of the Burgess reagent requires the incorporation of two commercially available chemicals, chlorosulfonyl isocyanate (CSI) and trieethylamine (TEA), and ceases in two steps. Figure 3 illustrates the treatment of CSI with anhydrous methanol and dry benzene at temperatures ranging from 25-30 °C, for approximately half-hour. This fairly quick reaction gives good yields (88-92%) of methyl (chlorosulfonyl) carbamate (MCC) which exists as white crystals when filtered and washed with hexanes. The generated MCC is then treated with a solution of TEA in anhydrous benzene, at temperatures ranging from 10-15 °C, over the course of one hour. The generated salt, Methyl-N-(triethylammoniumsulphonyl)carbamate, precipitates into colorless needles (84-86% yield). [1] Figure 3. Preparation of the inner salt (Burgess reagent) from two commercially available compounds, trieethylamine and chlorosulfonyl isocyanate. A special type of elimination reaction is believed to occur during the period the Burgess reagent is operational. The simultaneous elimination of two vicinal substituents, forming an alkene framework from an alkane, is the route of an intramolecular (Ei) mechanism or a syn elimination. The mechanistic action taken by the Burgess reagent, illustrated in Figure 4, will first produce a sulfamate ester by the attack of the sulfonyl group as well as the rapid displacement of the TEA group, by oxygen’s lone pair in methanol (pka=15.5). [1][4] By heating the sulfamate ester, pyrolysis is initiated, the ÃŽ ±-carbon is ionized and bears an ion that rapidly transfers the ÃŽ ²-hydrogen from the cationic to the anionic state. [1] Figure 4. Mechanism illustrating treatment of Burgess reagent with ethanol, allowing the extraction of the ÃŽ ²-hydrogen and formation of the olefin. In general, the extraction of the proton and the expulsion of the leaving group will generate the expected olefin, shown in Figure 5. The production of the olefin depends on the geometry of the molecule, therefore the hydrogen must be present in the syn conformation to the leaving group (TEA) in order for the reaction to proceed. In addition, the leaving group has nucleophilic properties that will allow the proton to be extracted readily in low polarity solvents. It also should bear multiple proton acceptor sites to permit favorable proton capture. [1] It is possible however that the cis elimination not be observed due to carbonium ion stability, which is stabilized by substituents, and/or a more stable configuration by means of rearrangement. [1] Figure 5. Example of a syn elimination, where the proton adjacent to the carbon bearing the reagent is removed and the deuterium remains a substituent with the olefin formation. Pertaining to Figure 5, the type of alcohol group (secondary, tertiary and homoallylic), the configuration and the environment are the main factors that affect the process of the reaction. The dehydration of a secondary or tertiary alcohol, in an aprotic solvent, follows Saytzef’s rule to form a more thermodynamically stable alkene, versus the kinetic product. Oppositely, primary alcohols (Figure 5i) will not yield the expected olefins; rather carbamates via an SN2 pathway as they are energetically more favorable. Steric hindrance is another important factor when treating with the Burgess Reagent.[1] Such an example holds true in primary sulfamate esters where intramolecular rearrangement occurs when temperatures increase due to the restrictions on bimolecular displacement (Figure 5ii). Depending on the conditions of the reaction, such as solvent polarity and temperature, allylic alcohols can either undergo elimination or SN1 rearrangement (Figure 5iii), with more favorable ap proaches of SN1 reactions providing greater than 90% yields. The same is applicable for tertiary alcohols where they can be subjected to rearrangement even though, under normal conditions, undergo dehydration. [1] Figure 6. Examples illustrating i) primary alcohols will not undergo olefin formation, rather producing a carbamate via SN2, ii) sterically hindered compounds can proceed with the formation of a thermodynamic product (Saytzef’s rule) and iii) allylic alcohol dehydration via elimination or SN1. [1] Functional group interconversions (FGI) can aid in many useful syntheses to design versatile compounds. With the assistance of Burgess’s reagent, high yields have been obtained through the transformation of formamides to isocyanides, nitrile oxides from nitroalkanes and nitriles from primary amides, for example. To stimulate the formation of nitriles from primary amides, the Burgess reagent is often employed instead of other reagents. [1] The problem arises when particular reagents come in contact with certain functional groups, requiring protecting groups or alternative multi-step syntheses to carry out the production. Burgess reagent is employed due to its chemoselective properties and its ability to form the intermediate in a fast(er) manner. As a result of this quick reaction, the product is kinetically more favored. [1] Figure 7 illustrates the interconversion of an amide to allow the Burgess reagent to proceed with dehydrative activities, thus yielding isocyanide with re arrangement. Figure 7. To allow dehydration of the alcohol, an amide undergoes interconversion to allow the Burgess reagent to proceed, forming isocyanide. Knowing the environment the alcohol group is in and how its configuration can be altered, the synthesis of natural products in industry, by usage of this reagent, has been of great synthetic value. For example, dihydrooxazoles are important heterocyclic-containing intermediates used in the synthesis of many biologically active natural products. Initially, these compounds have required an extensive multi-step synthesis for their preparation and previous attempts to cyclize have provided low product yields (25%) and an abundance of recovered starting material. [5] Wipf and Miller investigated more efficient protocols that would obtain better yields of the ÃŽ ²-sulfonate derivatives (Figure 8) of threonine and serine via a more selective intramolecular substitution. Treating the hydroxyl amino acid precursors, threonine and serine, with the reagent allowed the production of dihydrooxazoles because of their high reactivity to stimulate intramolecular cyclization. [5] Unlike other reagent s removing hydroxyl substituents, Burgess reagent allows stereospecific production of dihydrooxazoles without the formation of minor products like azirdine or ÃŽ ²-lactam. [5] Figure 8. Formation of the olefin, via dehydration, and proceeding with intramolecular cyclization to form the 5-membered ring. A paper by Rigby et al. investigated phenanthridone alkaloids originating from the narciclasine family and their anti-tumor properties. The synthesis of (+)-lycoricidine involved the use of the Burgess reagent in order to selectively deprotect the hydroxyl group and to promote cis elimination. [1][6] When dehydrated into an olefin, the compound can exhibit antimitotic activity, which in turn can elicit cytotoxic activities involved in the inhibition of plant growth and regulation, for example. [7] Chida et al. reported that synthetic (+)-lycoricidine exhibited strong cytotoxic activity against P-388 lymphocytic leukemia, suggesting stereochemistry was a responsible and an important component for the elevated cytotoxicity. [7] Other synthetically useful examples of products that are of value are medicinal drugs such as Efrotomycin, which is a new class of antibiotics eliciting anti-bacterial properties that act on gram-positive bacteria, [8] and Pravastatin, which is involved in the management of atherosclerosis and is a regulator of blood lipid levels. [9] Burgess reagent is either involved in the final step in order to form the olefin or participates in a one or two-step synthesis for the production of the precursor. Other uses of the Burgess reagent have been investigated by Canadian researchers at Brock University by designing thermally stable versions of the Burgess reagent with an objective to improve reactivity on epoxides, diols and vinyl oxiranes in comparison to the original reagent. [17] They tested the reactivity of the Burgess reagent with oxiranes, both in cyclic and acyclic conformations, providing low yields of sulfamidates. Also, epoxidation reactions, which required two equivalents of the Burgess reagent, provided cis-sulfamidates at low yields. [17] Since yields were not above their expected 40%, new derivatives created by Metcalf et al. allowed for anion or cation stability in the zwitterion. They tested thermal stability by monitoring the decomposition, in THF-d8 at 50 °C, of four new versions of the Burgess reagent showing stability and reactivity of the original reagent can be improved by inductive components of the zwitterion. [17] The inductive effects depress the nucleop hilicity of the carbamate anion, reducing formation of the sulfamidates and favouring diamine formation. This allows for the Burgess reagent to be synthetically useful in work other than dehydrative operations. [17] Figure 9 illustrates the conversion of a styrene diol to the diamine compound by treating with the modified Burgess reagent 1. Figure 9. Treatment of the modified Burgess reagent 1 with styrene diol, yielding a diamine compound to demonstrate other uses for this reagent. Martin sulfurane not only participates in dehydrative reactions but also in several other synthetically useful reactions, such as the production of sulfinimines, epoxidation reactions, cleavage of amides and oxidation. [12] Preparation of the diphenylsulfur compound incorporates commercially available 2-phenyl-2-propanol, using potassium hydroxide as the deprotonating agent, bromine and diphenylsulfide. [12] Stereospecificity of a molecule, as a reactant or product, is important in order to carry out biological functions. Under certain conditions, such as varying solvent polarities and reaction temperatures, Martin sulfurane induces stereospecific dehydration that allows for the formation of certain isomers. (E)-isomerism in certain products exists because of trans-E2 eliminations, whereas the (Z)-isomer is more favored due to the attachment of the sulfurane in the antiperiplanar conformation for the E2 elimination. [2] The mechanistic action first involves the exchange of the alkoxy ligand on either side the sulfurane, producing an alkoxysulfonium ion as a result of ionization and then proceeding through E1 or E2 elimination. [12] Illustrated in Figure 10, using tertiary-butyl alcohol as an example, Arhart and Martin suggest that all alcohols used in their experimental appeared to exchange rapidly with the alkoxy ligands of the Martin reagent. The cause of this is not definite but it wa s proposed that a dissociative mechanism was carried out. [10][11] Figure 10. The proposed mechanism illustrating the production of the expected olefin by means of dehydration when Martin sulfurane is used. Similar to the Burgess reagent, dehydration of secondary and tertiary alcohols yield the expected olefin but treatment of primary alcohols, such as ethanol and neopentyl alcohols with Martin reagent, favors the formation of unsymmetrical ethers due to the absence of structural features that aid in the elevation of ÃŽ ²-proton acidity. [10][11] Wensley et al. reported that treatment of a secondary alcohol with Martin sulfurane can lead to the production of a ketone by oxidation, in addition to the predicted olefin containing compound during the synthesis of their natural product containing a spiroketal enol ether. They proposed that the intermediate, containing the alkoxysulfonium ion, had proceeded forward via two possible routes, one of which was the deprotontation of the ÃŽ ²-proton allowing the olefin (or enol ether) formation and/or the other resulting in oxidation through intermolecular deprotonation by the excess –ORf (Rf = C6H5C(CF3)2 . [13] A paper written by Moslin and Jamison investigated the synthesis of (+)-acutiphycin, a natural metabolite found in blue-green algae, exhibiting effective antineoplastic activity against Lewis lung carcinoma and a potent cytotoxic agent against KB and N1H/3T3 cell lines. [14] The synthesis of (+)-acutiphycin underwent intermolecular condensation, through application of the Reformatsky reaction, affording a ÃŽ ²-hydroxy ketone followed by dehydration with the Martin sulfurane. [14] Prior to treatment with Martin sulfurane, samarium (II) iodide (SmI2 or Kagan’s reagent) was used to carry out the intramolecular Reformatsky reaction. [14] SmI2 has its limitations when intermolecular rearrangements occur because of side reaction formation and and oxidative dimerization of the enolate by the samarium therefore when coupled with Martin sulfurane, a 2-step sequence was carried forward to overcome sterically hindered structures (Figure 11). [12][14] Figure 11. Neurodegenerative disorders such as Parkinson’s disease and Alzheimers are caused by the degradation of the nerve growth factor (NGF) in the neurotrophin family of proteins. Therapeutic potential of NGFs have been extensively studied for the prevention, slow progression and even the reversal of these disorders. [15][16] Trzoss et al. have investigated other therapeutic strategies by synthetically mimicking neurotrophins in order to allow their biosynthesis. [16] The enantioselective synthesis of (-)-jiadifenin was carried forward with the assistance of Martin sulfurane. Trzoss et al. were unsuccessful when trying to eliminate the secondary alcohol via Barton-McCombie deoxygenation as well as mesylation and treatment with a variety of bases in order to obtain the desired alkene. When treated with Martin sulfurane, the olefin was obtained and was selectively hydrogenated, obtaining a 72% yield in two steps. [16] Geng and Danishefsky recently synthesized the macrolide aigiolamycin D, via Diels-Alder, using disiloxydiene and a 14-membered dienophile also known as the ynolide (or dienophile).[18] Having two or more of the same functional groups within a system can be difficult when trying to selectively treat one of the targets. Protecting groups are important in unsymmetrical synthesis, in comparison with symmetrical molecules which are chemically equivalent and protecting either side (with functional groups) is simple. Greg and Danishefsky proceeded to protect the diol group to allow the loner –OH unit to participate in the upcoming sequences. The loner –OH was protected via a silyl ether to allow the deprotection of the pivaloyl ester and formation of the –OH group. This –OH group can then be treated with Martin sulfurane, in methylene chloride solution, to form the resulting olefin and then deprotection (or conversion) of the dioxylane to the diol. [18] REFERENCES Khapli, S.; Dey, S.; Mal, D. J. Indian Inst. Sci. 2001, 81, 461-476. Li, J.J; Corey, E.J. Name Reactions of Functional Group Transformations. 2007 (Wiley) Meth-Cohn, R.K. Synthesis: Carbon with No Attached Heteroatoms. 2003 (Elsevier) Ballinger, P.; Long, F.A. J. Am. Chem. Soc. 1960, 82, 795-798. Wipf, P.; Miller, C.P. Tetrahedron Letters. 1992, 33, 907-910. Rigby, J.H.; Maharoof, U.S.M.; Mateo, M.E. J. Am. Chem. Soc. 2000, 122, 6224-6228. Chida, N.; Ohtsuka, M.; Ogawa, S. J. Org. Chem. 1993, 58, 4441-4447. Dolle, R.E.; Nicolaou, K.C. J. Am. Chem. Soc. 1985, 107, 1691-1694. Daniewski, A.; Wovkulich, P.M.; UskokoviĆ¡. J. Org. Chem. 1992, 57, 7133-7139. Arhart, R.J.; Martin, J.C. J. Am. Chem. Soc. 1972, 94, 5003-5010 Li, J.J. Name Reactions. 2014 (Springer) Pooppanal, S.S. Synlett. 2009, 5, 850-851. Wensley, A. M.; Hardy, A.O.; Gonsalves, K.M.; Koviach, J.L. Tetrahedron Letters. 2007, 48, 2431-2434. Moslin, R.M.; Jamison, T.F. J. Am. Chem. Soc. 2006, 128, 15106-15107. Price, R.D.; Milne, S.A.; Sharkey, J.; Matsuoka. Pharmacology Therapeutics. 2007, 115, 292-306. Trzoss, L.; Xu, J.; Lacoske, M.H.; Mobley, W.C.; Theodorakis, E.A. Org. Lett. 2011, 13, 4554-4557. Metcalf, T.A.; Simionescu, R; Hudlicky, T. J. Org. Chem. 2010, 75, 3447-3450. Geng, X.; Danishefsky, S.J. Org. Letters. 2004, 6, 413-416.

Pakistans Relationship with IMF and World Bank Essay -- Pakistan Econ

Pakistan's Relationship with IMF and World Bank My topic deals with Pakistan, its relationship with the IMF and World Bank, and its internal problems that are causing unemployment, poverty, economic crisis and hunger. I shall be analyzing the situation using the neo-classical theory, as it is what the economists of the Pakistan government and the IMF are using to alleviate the economic instability of the country. Situated in the sub-continent, Pakistan is a low-income country, with great promise for growth. Unfortunately, it is held back from reaching middle-income status by chronic problems like a rapidly growing population, sizable government deficits, a heavy dependence on foreign aid, recurrent governmental instability and large military expenditures. It is to address these fundamental faults in Pakistan’s economy that the IMF has initiated the Structural Adjustment Programs (SAPs) in the country. This is discussed in further detail later in the paper. Like all developing countries, Pakistan’s population is largely employed in the agricultural sector, which accounts for about 48 percent of the labor force. In today’s world the Industrial and Service sectors are the largest growing areas of a developed county’s economy. Yet Pakistan only employs 39 percent of its population in Service, and a minute 13 percent in Industry. This is a paltry figure, compared to the employment statistics of a developed country. Pakistan is also heavily dependent on a single export crop, cotton. Hence the country’s fortunes rise and fall with the cotton market. It is no wonder that there are so many poverty stricken people in Pakistan. When almost half the population is involved in a very volatile market, a lot of the time, a lot of people will be burnt by price fluctuations. The country is also subject to the mercy of the weather. Focussing on a major cash crop means very little diversification. This translates to mass hunger and hard times for the agricultural sector whenever the agrarian lands are ravaged by floods, or conversely, by droughts. Even more importantly, Pakistan’s agricultural sector is marked by large landowners, controlling most of the production. Hence, only a minimal amount of the profit from exports goes to the poor people working for the large farmers. It is these people who constitute a large portion of P... ... what appears to be an inevitable crash of its economy. The situation of the poor and under privileged could also be alleviated eventually as long as the government decides to start spending money on developing an infrastructure that can help feed the hungry by providing them with jobs. Nevertheless, there are no easy options left. Only the painful ones remain. It is, however, important that the pain of reform be distributed equitably, and not born largely by the poorer classes, as is very often the case. There are tough times ahead. Unfortunately, there is little evidence that the Pakistani ruling elite is aware of the gravity of the situation; or that it has what it will take to steer the country out of its mess. Bibliography: Bibliography: Andleeb Abbas, ‘Pakistan: A Puppet on the IMF Chain’ M Sharif, ‘IMF tranche $280 mn: Prof. M Rashid, ‘Fracturing Social Change’ IMF online resources World Bank online resources Pakistan Budget Report, 98-99 Dialogue between IMF and Pakistan, ’99 Lappe, Collins, Rosset, Esparza, ‘World Hunger’ Prof. Dr. M.A. Hussein Mullick, ‘Pulling the country out of its present financial crisis: the challenge for the present regime’

The Impact Advertising Has on Children Essay -- Advertisements Media E

The Impact Advertising Has on Children Advertising today focuses on specific targeted demographic groups. There is a direct focus on marketing products to young consumers. This age group sees the commercials, but does not really understand the directed message. This can have an adverse effect on the way children interpret and understand the message being presented to them. 'The average American child sees more than 40,000 commercials a year, and advertisers spend more than $12 billion annually marketing to them?double the amount of 10 years ago.' (APA-1) Children watching television are exposed to every channel running commercials that are sending out a mature message to an immature audience. There needs to be something done to prevent young children from receiving the wrong message at an early age. Also help for them to understand the message that is being sent out in a positive manner. Common themes that are used to sell products are sex, sex appeal and fast food. They are targeted for a younger marketing audience. Over the last thirty years advertising has focused on a younger consumer base and designs commercials to sell products to this age group. You see television ads, that are selling a mature product, but the commercial is appealing to an immature audience. For example: Trojan Condoms have created a cartoon character, Trojan Man, that is promoting the selling of condoms. This form of advertising appeals to smaller children because of the cartoon animated character. Though the product being advertised is a for an adult market, it is still sending out a message to young children that sex is okay. This direct kind of advertising with a cartoon theme, is what catches the child?s attention. The APA report points out, that children under the age of 8 can?t grasp the notion that commercials have a purpose other than entertainment. The child believes what they see a nd hear without understanding the true message. This is an effective way to advertise, because this persuades the child to want the product or to remember the product later on. Little catchy jingles and colorful carton-like commercials will catch the interest of a younger child, and using simple language that the child can understand is key to getting and keeping their attention focused on the product. Advertising focuses on the young consumer , because the marketing base is high for pr... ...m.; Sweden bans all TV advertising aimed at children under 12; and Denmark, Finland, and Norway don?t allow sponsorship of any children?s programs. Canada?s Broadcasting Code, which severely restricts children?s advertising, bans ads implying that a product will make a child happier or more popular. We are a country that will sell anything to anyone, no matter what the age or the message that is welcomed with the product. There needs to be more control in adverting to small children. Advertising is a powerful tool to bring a message to the masses. Controlling the message that is being directed towards very young consumers is critical. Mature advertising should not have an immature theme and should be limited when the commercials are aired. Advertisers need more guidelines to follow in order to help ensure that the right message comes across to children. Parents also need to be more aware of the television their children are watching. They should also talk to their children about commercials, and the message the commercials deliver. Explaining to children that everything they see on television is not real, may help the child interpret the commercials message differently.

Air Pollution Essay 24

What are the effects and sources of air pollution Assignment III Rachita Mittal Western International University SCI 270 Mrs. Saudamani Sharma Introduction Air pollution is the introduction of chemicals, particulate matter, or biological materials that cause harm or discomfort to humans or other living organisms, or damages the natural environment, into the atmosphere. The atmosphere is a complex, dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth's ecosystems. History Humans probably first experienced harm from air pollution when they built fires in poorly ventilated caves. Since then we have gone on to pollute more of the earth's surface. Until recently, environmental pollution problems have been local and minor because of the Earth's own ability to absorb and purify minor quantities of pollutants. The industrialization of society, the introduction of motorized vehicles, and the explosion of the population, are factors contributing toward the growing air pollution problem. At this time it is urgent that we find methods to clean up the air. The primary air pollutants found in most urban areas are carbon monoxide, nitrogen oxides, sulfur oxides, hydrocarbons, and particulate matter (both solid and liquid). These pollutants are dispersed throughout the world's atmosphere in concentrations high enough to gradually cause serious health problems. Serious health problems can occur quickly when air pollutants are concentrated, such as when massive injections of sulfur dioxide and suspended particulate matter are emitted by a large volcanic eruption. Air Pollution in the Home You cannot escape air pollution, not even in your own home. â€Å"In 1985 the Environmental Protection Agency (EPA) reported that toxic chemicals found in the air of almost every American home are three times more likely to cause some type of cancer than outdoor air pollutants†. (Miller 488) The health problems in these buildings are called â€Å"sick building syndrome†. â€Å"An estimated one-fifth to one-third of all U. S. buildings are now considered â€Å"sick†. (Miller 489) The EPA has found that the air in some office buildings is 100 times more polluted than the air outside. Poor ventilation causes about half of the indoor air pollution problems. The rest come from specific sources such as copying machines, electrical and telephone cables, mold and microbe-harboring air conditioning systems and ducts, cleaning fluids, cigarette smoke, carpet, latex caulk and paint, vinyl molding, linoleum tile, and building materials and furniture that emit air pollutants such as formaldehyde. A major indoor air pollutant is radon-222, a colorless, odorless, tasteless, naturally occurring radioactive gas produced by the radioactive decay of uranium-238. According to studies by the EPA and the National Research Council, exposure to radon is second only to smoking as a cause of lung cancer†. (Miller 489)   Radon enters through pores and cracks in concrete when indoor air pressure is less than the pressure of gasses in the soil. Indoor air will be healthier than outdoor air if you use an energy recovery ventilator to provide a consistent supply of fresh filtered air and then seal air leaks in the shell of your home. Air pollution has unhealthy effects on people, animals and plant-life across the globe. Every time we inhale, we carry dangerous air pollutants into our bodies. These pollutants can cause short-term effects such as eye and throat irritation. More alarming, however, are the long-term effects such as cancer and damage to the body's immune, neurological, reproductive and respiratory systems. Acid Rain is a significant air pollution problem that affects rural, suburban and urban areas that are down-wind of major industrial areas. Acid rain is caused when sulfur and nitrogen pollution from industrial smokestacks is combined with moisture in the atmosphere. The resulting rain is acidic which destroys natural ecosystems ands buildings. Global Warming, as pollution gathers in the Earth's atmosphere, it traps heat and causes average temperatures to rise. It is hard to predict exactly how climate change will affect a particular area. Here are a few likely results: †¢ A rise in sea level between 3. 5 and 34. 6 in. 9-88cm) leading to more coastal erosion, flooding during storms and permanent inundation †¢ Severe stress on many forests, wetlands, alpine regions, and other natural ecosystems †¢ Greater threats to human health as mosquitoes and other disease-carrying insects and rodents spread diseases over larger geographical regions †¢ Disruption of agriculture in some parts of the world due to increased temperature, water stress and sea-level rise in low-lying areas such as Bangladesh or the Missi ssippi River delta. Sources and health effects of air pollution | |Pollutants |Sources |Health Effects | |Nitrogen dioxide |All combustion processes (for example road vehicles |General irritation to airways including increased | | |and domestic heating) produce oxides of nitrogen (NOx)|chance of respiratory infection and impaired lung | | |which particularly in the presence of ozone is |function. | |converted into nitrogen dioxide. | | |Primary |Road traffic (for example diesel engines, brake and |Respiratory and cardiovascular problems. Concerns | |Particulates |tyre wear); industrial sources (for example power |about long-term effects. | | |stations). | | |Secondary |Formed through the oxidation (presence of ozone) of |Respiratory and cardiovascular problems. Concerns | |Particulates (e. g. |particular gases (for example sulphur dioxide, |about long-term effects. | |sulphates, nitrates) |nitrogen dioxide) in the atmosphere condensing to form| | | |fine particles. | | |Carbon monoxide |Road transport and industry (all combustion of carbon |Reduces the oxygen carrying capacity of blood and at | | |based fuels). low levels reduces concentration and at higher levels| | | |causes headaches, nausea, dizziness. At very high | | | |levels it can lead to death. | |Sulphur dioxide |Combustion of fossil fuels (mainly coal and heavy |Causes breathing difficulties, and irritation of the | | |oils). |eyes, nose, throat and lungs. People suffering from | | | |asthma are particularly susceptible. | |Lead |Petrol and industry (such as smelting, and paint |Can effect the intellectual development of children, | | |works). |and at very high doses poisoning, brain and organ | | | |damage can occur. | |Benzene |Combustion and distribution of petrol. |Exposure over a long time can lead to cancer. |1, 3 Butadiene |Combustion of petrol and diesel, and the production of|Exposure over a long time can lead to cancer. | | |rubber for tyres. | | |Ozone |Ozone is a photochemical pollutant which means it is |Exposure can cause an irritant effect on the lungs, | | |primarily formed by the reactions of other pollutants |airway inflammation and short term respiratory | | |such as nitrogen oxides in the presence of sunlight. |symptoms. |

Ocean Noise Pollution

For millions of years, the oceans have been filled with sounds from natural sources such as the squeaks, moans and clicks of whales and dolphins, the snapping of shrimp, the sound caused by wind upon the surface and even the occasional rumble from earthquakes. Over millions of years, the ocean's marine species have developed into what they are today, with their own specialized acute hearing abilities, communication skills and echo location abilities at natural sound levels.Hearing is generally as important to many marine creatures as sight is for humans. The oceans once referred to as the â€Å"The Silent World† by Jacques Cousteau, has now become an increasingly noisy place since the industrial age. According to Wikipedia, Noise Pollution is excessive, displeasing human, animal or machine-created environmental noise that disrupts the activity or balance of human or animal life. Noise pollution could also be defined as a type of energy pollution in which distracting, irritatin g, or damaging sounds are freely audible.As with other forms of energy pollution (such as heat and light pollution), noise pollution contaminants are not physical particles, but rather waves that interfere with naturally-occurring waves of a similar type in the same environment. Thus, the definition of noise pollution is open to debate, and there is no clear border as to which sounds may constitute noise pollution. In the narrowest sense, sounds are considered noise pollution if they adversely affect wildlife, human activity, or are capable of damaging physical structures on a regular, repeating basis.Hearing is the universal alerting sense in all vertebrates. Sound is extremely important because animals are able to hear events all around them, no matter where their attention is focused. Sound travels far greater distances than light under water. Light travels only a few hundred meters in the ocean before it is absorbed or scattered. Even where light is available, it is more difficu lt to see as far under water as in air, limiting vision in the marine environment It is similar to looking through fog on land.So, the best opportunity for long-range vision underwater especially in murky water is to swim beneath objects and see their silhouettes. In consequence, most marine animals rely on sound for survival and depend on unique adaptations that enable them to communicate, protect themselves, locate food, and navigate underwater. Animals change the rate of sound production and the structure of the sounds to send different messages. Underwater sound allows marine animals to gather information and communicate at great distances and from all directions.The speed of sound determines the delay between when a sound is made and when it is heard. The speed of underwater sound is five times faster than sounds traveling in air. Sound travels much further underwater than in air. Thus marine animals can perceive sound coming from much further distances than terrestrial animals . Because the sound travels faster, they also receive the sounds after much shorter delays (for the same distance). It is no surprise that marine mammals have evolved many different uses for sounds. Marine mammals, such as whales, use sound to identify objects such as food, obstacles, and other whales.By emitting clicks, or short pulses of sound, marine mammals can listen for echoes and detect prey items, or navigate around objects. This animal sense functions just like the sonar systems on navy ships. It is clear that producing and hearing sound is vital to marine mammal survival. Whales and dolphins are celebrated for their sounds, but many species of fish and marine invertebrates also use sound. Fish produce various sounds, including grunt, croaks, clicks, and snaps, which are used to attract mates as well as ward off predators.For the toadfish, sound production is very important in courtship rituals. Sound is produced by the male toadfish to attract the female for mating and is especially important in the murky waters that toadfish inhabit where sight is limited. Fishes also produce sound when feeding. When a fish eats hard food, such as coral, it will produce a sound. Fishes sometimes gnash their teeth without the presence of food, which may be a way to scare away predators. As you can see, sound is very important to its underwater inhabitants.It allows them to navigate, to hear approaching predators and prey, and is a way of communicating with other members of the same species. There are a lot of sources of noise in the marine environment. Naturally occurring noises include underwater volcanic eruptions and storms. Background noise in the ocean is produced by breaking waves, wind and rain, and by the huge number of small crustaceans and other animals. A typical background noise level is about 100 decibels (dB), which is about the same in energy terms as 40 dB in air.Wind and waves in storms, and choruses from fish and invertebrate can increase this level to about 120 dB. Measurements show that the Pacific Ocean is still relatively quiet and that most of its background noise is produced by wind and by marine creatures. This is in contrast to the Atlantic Ocean, where most of the background noise is from the churning propellers of ocean-going ships. There are also several man-made (anthropogenic) sources of ocean noise, some of which are the unintended by products of human activity (e. g. essel propulsion), while others are produced for a specific purpose (e. g. military sonar). Whales, dolphins and porpoises today face a wealth of man-made threats including hunting, ship strikes, entanglement in fishing gear and issues arising from climate change. However, one man-made threat that is not as commonly acknowledged as others is ocean noise pollution. This is partly due to the fact that it is not a visible threat, so can be easily overlooked. The noise becomes problematic and highly hazardous when it is man-made.In the past several year s many studies have shown that man-made ocean noise emanating from such sources as are military sonar equipment, ship traffic, and underwater drilling, commercial shipping seismic surveys for oil and gas exploration, mineral and aggregate extraction, construction (e. g. drilling, dredging and explosions), acoustic deterrent and harassment devices(e. g. pincers on fishing nets used to deter predators) and recreational activities(e. g. boating). Noise pollution in the oceans has been shown to cause physical and behavioral changes in marine life, especially in dolphins and whales, which rely on sound for daily activities.However, low frequency sound produced by large scale, offshore activities is also suspected to have the capacity to cause harm to other marine life as well. It can also cause hemorrhage or other trauma to the marine mammal’s auditory system, sometimes leading to permanent hearing loss, and, indirectly, death. It also causes displacement from their natural habita t, disruption of feeding, breeding, nursing, and other behaviors vital to the species survival. Some of the sounds produced by these man-made sources can travel for hundreds of kilometers in marine environment, potentially affecting many marine animals over a huge are.The growing amount of human noise pollution in the ocean could lead fish away from good habitat and off to their death, according to new research from a UK-led team working on the Great Barrier Reef. Noise pollution might also severely affect the distribution of fish, and their ability to reproduce, communicate and avoid predators. For example, some studies have reported that Atlantic herring, cod and blue-fin tuna flee sounds and school less coherently in noisy environments. That could mean that fish distributions are being affected, as fish avoid places polluted by man-made noise.Not only can squids and octopuses sense sound, but as it turns out, these and other so-called cephalopods might be harmed by growing noise pollution in our oceans—from sources such as offshore drilling, ship motors, sonar use and pile driving. Giant squid, for example, were found along the shores of Asturias, Spain in 2001 and 2003 following the use of air guns by offshore vessels and examinations eliminated all known causes of lesions in these species, suggesting that the squid deaths could be related to excessive sound exposure.The effects of noise pollution on whales depend, among other things, on the distance the whales are from the source of the noise. If the sound is very powerful and close to the animals it could well bring about permanent ear damage, internal injuries, and even death. Even sounds less powerful can induce temporary deafness, as was shown by studies carried out on seals, dolphins and belugas in captivity. Knowing just how dependent whales are on sounds, there is much cause for concern.During March of 2000, at least 17 whales stranded themselves in the Bahamas and the population of beaked w hales in this region disappeared. A federal investigation identified testing of a U. S. Navy active sonar system as the cause. There are many things we can do to decrease ocean noise,† Ocean Link, an organization dedicated to ocean education, says on its website. â€Å"The first would be to simply recognize that there is a noise problem in the oceans, which some governments have begun to do. With formal recognition, it may be possible for national and international agencies to work together to help reduce this problem.For any new policies regarding ocean noise, scientists should follow the precautionary principal to ensure that no further harm will come to marine mammals. From this perspective, governments should adopt legislation with the habitats of marine mammals in mind, ensuring that important areas would receive the least impact possible. † While these may come too late for hundreds of sea animals that have already been damaged by underwater noise, with the right and concerted action, the seas may resonate with the sounds of whale songs, not the human-produced lethal noises of engines and machinery.