Nursing Education Essay

This paper will outline the differences in competencies between Associate Degree in Nursing (ADN), and Bachelor in Science of Nursing (BSN) prepared nurses. Then identify a patient care situation describing how nursing care or approaches to decision making may differ based upon the educational preparation of the nurse. The Free online Dictionary (2013) depicts competency as â€Å"The quality of being competent or capable of performing an allotted function.† Here is a comparison of two different pathways to becoming a Registered Nurse: Associate Degree in Nursing (ADN), and Bachelor in Science of Nursing (BSN) programs. Born out of the nursing shortage in 1952, the Associate Degree nurse came in to fruition thanks to Mildred Montag. The Associate Degree program for Registered Nurses is two-three years length. This program does hold academic credit based on clinical and general studies preparing these students to be able to function as â€Å"technical† bedside nurses. At the end of the ADN program students are eligible to take the NCLEX-RN (Creasia & Reid, 2011). The Bachelors of Science program is four years in length and actually regarded by the American Nurse association as the original entry level requirement to becoming a Registered Nurse (Smith, 2009). This program originated in 1909. The BSN program is based on evidence based practice, Community nursing, and prepares these nurses for leadership roles whereas the ADN programs do not function to prepare nurses in leadership roles (Creasia & Reid, 2011). This is due to the program providing education, described by Creasia & Reid, 2011, also on â€Å"Information management, health care policy and finance, communication/collaboration, clinical Prevention/population health and professional values.† (p. 25). At the end of the program these Nurses are eligible to take the NCLEX-RN. With differences in the level of education among RN’s this brings up the controversial topic of: Do the difference in educational levels of BSN prepared nurse and ADN nurse make the more educated BSN more prepared for the challenges of nursing today? There is much more research needed on this topic. Online Journals such as Policy Politics Nursing Practice Ellenbecker, 2011 state, â€Å"Today’s environment of expanding knowledge, the call for interdisciplinary healthcare delivery teams, and evidence of the relationship between nurse education and improved patient outcomes strongly indicate the need for nurses prepared at the baccalaureate level.† (115-125). Studies such as Aiken (2003) depict negative outcomes such as failure to rescue and mortality were nineteen percent lower in hospitals post-surgical patients where sixty percent of the nurses had baccalaureate degrees. The American Association of Colleges of Nursing 2003 provide an entire fact sheet depicting h ow BSN nurses may be more prepared than diploma or ADN to meet the demands of nursing today. They state this is due to the broader span of course work provided in the BSN program. The BSN nurse learns what the diploma and ADN nurse learn but receive a more â€Å"in depth† experience thus allowing them enhanced â€Å"professional development, a greater understating of cultural, political, economic and social issues affecting patients and influencing health care delivery.† (AACN 2003). Nurses holding a BSN education could indeed be more able to provide the approach of looking at the patient as a whole, as well as enhanced critical thinking skills. (AACN 2003). One clinical example that depicts the difference in patient care situation describing how nursing care or approaches to decision-making may differ based upon the educational preparation of the nurse BSN versus a diploma or ADN degree. The issue of â€Å"may† provide different approaches to decision making is appropriate. There are studies that support that BSN prepared nurses are better prepared and studies that suggest that there is no significant difference in care delivered by BSN compared to the care delivered ADN and Diploma nurses. When faced with the evidence that BSN prepared nurses are taught a higher level of education and to utilize evidence based practice (AACN 2003) (Creasia & Reid, 2011). The BSN prepared nurse may be better prepared to think more critically and research why they do a task and not just do the task blindly. For instance evidence-based practice provides hospitals with ways to decrease CAUTI from occurring (AJIC 2011). This is â€Å"Catheter-associated urinary tract infections (CAUTI). According to AJIC 2011, â€Å"CAUTI are â€Å"common, morbid, and costly†. â€Å"Nearly 25% of hospitalized patients are catheterized yearly, and 10% develop urinary tract infections. Evidence based guidelines exist for indwelling urinary catheter management but are not consistently followed.† (pp. 1-6). Being educated enough to look up what the evidence based practice guidelines on catheters are can significantly increase positive patient outcomes. Furthermore, AJIC 2011 states also that when nurses where â€Å"re-educated† on a â€Å"basic skill† and† infusing best evidence into current practice were important to raise awareness of simple interventions that positively impacted patient outcomes and infusing best evidence into current practice were important to raise awareness of simple interventions that positively impacted patient outcomes.† (pp. 1-6). Nurses who are more educated on reasons behind evidence based practice understand the importance of implementing it into current nursing practice. So it could be said that a BSN prepared nurse is more likely to utilize the practice guidelines that are evidence based. This provides an example how a BSN nurse could be more likely to make a different judgment call than a diploma or and nurse and take initiative to ask the MD for an order to support an evidence-based decision. To summarize there three pathways to becoming a Registered Nurse: Diploma, ADN, and BSN programs. Each has unique qualities. The program that offers a more â€Å"in-depth† education is the BSN program. All programs lead to the same end point of allowing the student to the NCLEX-RN. There are varying viewpoints on whether or not a BSN versus ADN nurse is better educationally prepared for the nursing workforce today. References American Association of Colleges of Nursing. (2013). The impact of education on nursing practice. Retrieved on January 18, 2013 from: http://www.aacn.nche.edu/media-relations/fact-sheets/impact-of-education Aiken, L. H. (2003). Educational levels of hospital nurses and surgical patient mortality. Journal of the American Medical Association, 290 , 1617–1623. Retrieved on January 19, 2013 from: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3077115/ Creasia, J. L., & Reid, PHD, RN, K. B. (2011). Conceptual foundations the bridge to professional nursing practice. (5th ed.). Ch. 2, pp.1-39. St. Louis, Missouri: Elsevier Mosby. Retrieved on January 19, 2013 from: http://pageburstls.elsevier.com/books/978-0-323-06869-7 Ellenbecker PhD, RN, C. (2010, 08 30). Policy politics and nursing practice preparing the Nursing Workforce of the Future. vol. 11 no. 2 115-125. Retrieved from on January 19, 2013: http://ppn.sagepub.com/content/11/2/115.abstract Farlex, Inc. (2013). The free dictionary . Retrieved on January 19, 2013 from: http://www.thefreedictionary.com/competencies Oman, K. S., & Flynn Makic, M. B. (2011). Nurse-directed interventions to reduce catheter associated urinary tract infections. American Journal of Infection Control, 1-6. Retrieved on January 19, 2013 from: http://www.ucdenver.edu/academics/colleges/medicalschool/departments/medicine/hcpr/cauti/documents/TeamPublications/Nurse-Directed Interventions to Reduce Catheter-Associated Urinary Tract Infections.pdf

No More Sunshine on Leith Essay

It was a cold, frosty night in Edinburgh, and yet people still insisted on going to the pub for an evening drink. Two of these people were Mike and Danny Roxborough who were headed to their favourite pub, the Persevere. The lampposts brightly lit their path. The moon was ever-present tonight, as there was not a cloud in the sky, meaning that there would probably be a frost tomorrow. When they reached the pub and Mike turned in, closely followed by Danny, the first thing they did was scan the room for any familiar faces to talk to. As he looked around Mike couldn’t see anyone he knew so he sent Danny to get them a couple of beers and headed off to their usual table – only to find someone else sitting there. He stood there, gazing at the pair, who looked as camp as camp can get. Both were men wearing bright purple and yellow suits, like something out of the 1950’s. As they were talking and Mike watched them, he noticed a growing similarity between their behaviour and the kind that gets people beaten up in the streets for being homosexual. Just as he was about to go and explain his situation, being left without a seat in a busy pub with someone else in his seat, when Danny came up to him carrying their drinks. â€Å"Couldnae find us a seat then, eh? Ah well. Ah might no stay long anyway. By the way, did y-† he was cut off as Mike raised his hand to Danny’s face. â€Å"These people have nicked our seats! Aren’t you goin’ to dae sumthin’ about it?! † â€Å"Yeh ken me Mike,† said Danny, cowering away and shooting nervous glances at the gentlemen occupying their table, â€Å"Ah dinnae like fightin’. † â€Å"Yer an eejit Danny! † said Mike as he approached the two camps. â€Å"S’cuse me fella’s, but I think yer in our seats. Would ye mind movin’ fir us? Cheers. † They looked at each other for a second before the purple-suited one turned back. The tension in the air could be easily felt, and the surrounding tables were starting to turn around and watch. â€Å"Ooh I do believe that we had these seats first, my friend! I’m afraid that I didn’t see your name on them, therefore we have a right to sit here. † â€Å"SHUT UP! † shouted Mike so loud that the rest pf the pub turned around to watch and even made Danny, who was used to these outbursts, nearly jump out of his skin. â€Å"Outside, if you please,† and then he bowed pointing the way to the emergency exit. â€Å"I object to this treatment! I’m going to sort you out once and for all,† and the purple suited one led the way outside, followed by the yellow suit and then Mike and Danny. Outside was freezing cold by now and a bitter wind had picked up, blowing leaves around in circles on a stretch of concrete that was marked off as a loading bay/car park. Danny and the yellow suit stood back to watch the sparks fly, frightened to get involved, whilst Mike and the purple suit stood, not moving a muscle, staring each other down. Then, suddenly, the purple suit caught Mike by surprise by rugby-tackling him to the concrete and kicking him on the ground. However, it would take a lot more than that to keep Mike Roxborough down. As he got back to his feet and lunged for purple suit, he staggered and fell onto a crate, smashing it. It looked like purple suit had actually taken him out of the running. As Mike stood up once again, purple suit started running rings around him and laughing his head off hysterically. Mike started swinging hooks at him then but couldn’t hit him. His reactions were just too slow. After a lot of swinging and laughing, Mike seemed to be really annoyed and Danny could see that. Mike was tired of being humiliated like this and wanted it to stop. He then picked up a sharp piece of wood from the smashed crate when purple suit was chatting to yellow suit and they started to leave. He ran straight for them and this time his aim was true. The sharp plank impaled the purple suit from behind and he screamed out before sinking to the ground with an expression of disbelief on his face. As all three remaining people stared in disbelief at the scene that was before them, Mike turned around and looked up at Danny with a guilty yet pleading look on his face. Danny knew he couldn’t do anything, and so stepped backwards into the shadows and headed home, leaving Mike on his own. He didn’t want anything to do with a murder.

Chuck Close And Photorealism Research Paper Example | Topics and Well Written Essays - 2250 words

Chuck Close And Photorealism - Research Paper Example A graduate of the Yale University School of Art and once a teacher of arts in University of Massachusetts, Chuck Close became a significant figure in artistic society of the latter half of the twentieth century known for his remarkable style of painting large-scale portraits. â€Å"Close learned to paint like an Abstract Expressionist when he was a student at Yale† . Yet, while the painter’s preferences in his tuition years centered mainly on abstract impressionism, training in Europe and the MFA program have added a pinch of more modern trends including minimalism and pop art. However, the artists managed to choose the domain for his work rather early: human faces and their versatile portrayals in photography and paint became the major course for the artist’s development, while the painterly style and instruments changed for several times. During his teaching career in Amherst, the painter experimented with pop-inspired elements in portraiture, engaging photogra phic images for the first time in his work: those were the daring and large realistic pictures of nude models including Bid Nude of 1967. However, it was his Big Self-Portrait that served as an important milestone in development of his style, for this painting literally opened the series of the famous photorealistic ‘heads’ on a larger-than-life scale and with exaggerated and unflattering manner of depiction, his friends and family as models, first in grayscale and then in color. Later period of Close’ work was marked by domination of pointillism.

Suleymaniye Mosque istanbul Essay Example | Topics and Well Written Essays - 1750 words

Suleymaniye Mosque istanbul - Essay Example The edifice was the 7 years masterpiece work led by the Ottoman engineer, Mimar Sinan in the year 1550 to 1557. Mimar Sinan studied with great interest one of the model edifices, the Hagia Sophia Church. Hagia Sophia Church is the Byzantine church of Divine Wisdom which was used by the Ottomans as prayer house at the onset of occupancy in Turkey (Jackh, 1952; Turkey, 2006). However, the Dome of the Rock Mosque in Jerusalem constructed in 643 apparently set the primary standards of subsequent Mosque architectures in the Islamic sphere of influence (Hitchcock, Lloyd, Rice, Lynton, Boyd, and Carden, 1963). Departing from the four sided building of the Kaaba which was constructed by Abraham and Ysmael, peace is upon them, the Dome of the Rock Mosque is shape in a rotunda (Hitchcock et al., 1963) on top of the hill. During the Ottoman reign over Turkey, from 1288 to 1923, the organized sultanate took over properties which were left behind by the Byzantine monarchs. A few of these are the buildings with its arts and architecture. The structures as well as the adornments very well portrayed influences not only of Byzantine art but also from the Seljuk Turks. The Seljuks' ruled Turkey from 1071 to the 1300th's. The Seljuks' introduced some arts and architectural designs they must have picked up from Persia and Anatolia. Although some of the structures were refurbished from one set of colonizer to the next, some served as models for the construction of buildings that were called Ottoman Mosques (Hitchcock et al., 1963). Suleymaniye imperial Mosque is one of the legendary architectural model output that exist up to date. The Mosque was named after Suleiman the sultan of the era. The structure was adorned with 4 very prominent external minarets, dome shape roof, the prayer hall, iwan, sahn, and garden (Essential Architecture, Asia-West, 2009). The floor plan reveals a square architectural structure (Hitchcock et al., 1963). Source: Essential Architecture, Asia-West, 2009 Source: Title: World Architecture: An Illustrated History; Publisher

Discipline in the Public Schools Assignment Example | Topics and Well Written Essays - 1000 words

Discipline in the Public Schools - Assignment Example The principal disregarded Jame’s claim and subjected him to corporal punishment and on the account of this punishment, he and his parents went to US Supreme Court for justice. The kid and the parents lost the case and the case was ruled in the favor of the school. The judge ruled that the prohibitions that have been levied by the constitution of US in case of harsh punishment towards children were not applicable in the case of corporal punishments that take place in public schools. Case 2: Student Suspension Goss v. Lopez In case of Goss v. Lopex, the US Supreme Court established that students had a right to a hearing before they are subjected to suspension from the public school as if a hearing is not conducted; the student’s right to due process is violated (Osborne, 2009, p.33). In this case, nine students including Dwight Lopez experienced suspension for around 10 days as a result of school property destruction activity. Before this case, public schools principals h ad the authority to suspend students for a period of 10 days along with a notification sent to their parents within the 24 hours of the incident. Secondly the law did not allow students to appeal to the board of education in case of suspension. This law was written off as the judges ruled that such laws violated a student’s 14 amendment right of due process and a hearing before suspension was necessary. The judge even ruled that suspensions have the ability to harm a student’s ability to gain employment and career advancements. Case 3: Expelled Fuller v. Decatur Public School Board Of Education In the case of Fuller v. Decatur Public School Board Of Education, Fuller along with a number of children was expelled from the school for a period of 2 years on the account of fighting that occurred between students (Osborne, 2009, p.33). Due to being expelled, Fuller appealed to the court stating that his and his associate’s expulsion from the educational institute was on the basis of racial profiling and they were regarded as gang members and their expulsion was not justified since they did not use any weapons. Even though no weapons were used, the fighting was very severe in nature and bystanders were even injured. The court ruled the case in the favor of the school because students failed to prove that any form of racial profiling had occurred and the expulsion was justified. Opinion in Case of Corporal Punishment In case of Ingraham v. Wright the court ruled in the favor of corporal punishment being used to discipline students. Corporal punishment is a term used to refer to the act of using severe measures in order to discipline individuals and especially students in schools. Corporal punishment in any case should be completely disregarded and the constitution should put a stop to such punishments. One of the main reasons for stopping corporal punishments is that teachers and educators are socializing agents for children and children tend to o bserve and imitate the behavior of their teachers (Nanjunda, 2008, p.23). If educationalists use corporal punishment for mistakes made by students, students will even start accepting that hitting someone or spanking another individual is a way to deal with their wrong doings and they themselves will use similar methods in their life. Corporal punishment should even be abolished in US schools because no individual can make

Equality and Diversity Essay Example | Topics and Well Written Essays - 1250 words

Equality and Diversity - Essay Example They were attacking more the fact that I was Muslim who looked and dressed differently from them. I shall refer to this incident now and then as I advance in analyzing the concept of racism, more particularly social exclusion. I will mention some two theories of power that could possibly explain my case, where the first one is basically the model against which this paper hinges on, and the other one to explain the ruler-subject set-up and its requirements. The latter one is more political than sociological, however, but it will give insights into social division and how oppression is committed. Basically, this paper will look into racism and limit it to my experience, particularly on same-race racism. I will deal with social exclusion, particularly on the issue of migrant ethnic minorities and the feeling of being looked upon as specimens including matters of dressing. Religion will necessarily be touched especially where Muslims are concerned, and the freedom to study and live where one is allowed to do so. I will then lead to what can be done, mentioning about the general finding of a youth dialogue in a Detroit experiment. Finally I will arrive at proper self-criticism as a resolution to all of these a s a syndrome. Theory of social dominance. Sidanus (in Powell, 2006) forwarded a most logical explanation of power in what obtains in society. Looking at society as a group-based hierarchy, Sidanus mentioned three major divisions that determine power in some ways: age, sex, and grouping. Accordingly, older individuals dominate younger ones; males dominate females; and the more dominant group (in-group) prevails over the subordinate group. Sidanus' theory explained that the third form of division is chiefly expressed by in-group males against out-group males, defined as xenophobia and racism. It is said that for this third division, religion, nationality, ethnicity, and other differences can also serve to mark divisions in society. Accordingly, the reason egalitarianism will never win is because "Whenever the old structures are overthrown, the natural human tendency to draw lines between groups and to establish a societal pecking order kicks into action." (Sidanus. In Powell, 2006). Between xenophobia and racism, according to Stoler (1997), xenophobia is fear of foreigners, while racism, which is more encompassing in meaning, is the belief that built-in biological differences among human races determine whether one's own race is superior over the others and has the right to rule over them. (Dictionary.com, 2006). Racism takes the form of prejudice, discrimination, or subordination, and can be both open and concealed. Individual racism sometimes consists of open acts of individuals resulting in violence or destruction of property. There is also so-called same-race racism where members of one race associate behaviours or appearance of other members of their race as being in relation to another race which is regarded negatively (Stoler, 1997). A form of cultural racism can also be related to this, where members of a racial group are chastised by their members for adopting a culture perceived to be of another race. The incident I had encountered, while I and the two girls could be said to be of same-race [coming from Africa], took a different path. They apparently had expected that since we were in UK, and not Africa, we had to act differently. But

Strategic Management Analysis Essay Example | Topics and Well Written Essays - 1750 words

Strategic Management Analysis - Essay Example The Company focuses on transforming personal transportation by introducing vehicles that will use electricity rather that the norm of fuel consumption vehicles.The Company was founded by Agassi and its headquarters are in R&D center which is in Israel as well as in California and Palo Alto. Mission The mission set by Better Place Companyis to be able to accelerate the change from the use of oil based vehicles to the adoption of vehicles that are powered by renewable energy that is they have zero emission. Vision Its vision is to be a company that is aimed at creating great linkages between the car companies, the battery companies as well as the consumers and utilities in a way that will ensure that the adoption of the Electric Vehicles (EV) is a success. Better Place is geared towards ensuring that the automobile industry adopts a profitable change by propelling the consumers to be able to embrace the adoption of the EVs. Stakeholders A stakeholder simply refers to people, organizati on or groups that have a specific interest in an organization. Being a company that deals with automobiles Better place managers have to always give more attention to the expectations of those stakeholders that are directly involved in the industry. This is due to the fact that the influence and success of the company depends primarily on such stakeholders. The stakeholders include governments, the battery manufacturers, car companies, automobile manufacturers, investors, potential consumers for the EV as well as other private companies. With regards to the way in which each stakeholder influences the success or the failure of the business strategy Better place has three types of stakeholders (Johnson, p.156). These are: The socio/political stakeholders-these are mainly the governments as well as the agencies that are supporting the adoption of the company’s strategy. For instance the governments that have embraced the adoption of the Electric Vehicles are Israel, Denmark, Au stralia, Japan, Toronto and Hawaii. In order for Better Place to be able to attract the government, industry as well as the capital for the adoption of the EV model a number of challenges was faced: These were-the lack of marketing strategy to create awareness about better place in order to build its reputation. The second challenge was trying to convince the decision makers in government and business that the use of the Electric Vehicles was a viable mode of transport. Economic stakeholders-These include the manufacturers, the competitors as well as the suppliers. For instance, the battery manufacturers such as LG Chem and the car companies such as Toyota. Technological stakeholders-These includes the competitors who come up with new technologies that are aimed at improving the industry standards. Better Place Company through the expectations of its stakeholders aims at making a difference by ensuring that the form of transport used worldwide is environmental friendly. The impact o f the company has been seen throughout the years and it is clear that in the case that the company will not have materialized, the hope for a personal transport that has zero emissions would have been lost. Better PlaceCompany is dependent on its stakeholders due to the fact that its implementation primarily depends on their approval as well as continuation of the supply chain. For instance for Israel to fully embrace the Electric Vehicles it was necessary for the government to grant the company permission to start up the venture.Below is a figure showing power/interest matrix: Industry and Scenario Analyses Industry and scenario analysis does not rely on

Written paper discussin the provision for a child identified as having Essay

Written paper discussin the provision for a child identified as having special education needs - Essay Example The major behavioural problems observed with children are autism, attention deficit syndrome disorder, dyslexia and Asperger syndrome and these problems hamper the ability of children to learn well. Two levels of interventions, wave 2 and wave 3 are designed for children who require special educational needs and the latter gives individual care for those children. Children need different types of interventions since their learning problems are different from child to child. At first, the need of the child must be identified and specific provision must be given according to the identified needs. The interventions for the students who require special educational needs are implemented in nursery, primary and secondary levels of education and there are SEN departments in each school having a SENCO (Special Educations Needs Coordinator). Children who want special education need to procure a statement, stating the special needs and special provision of the child and this statement for the child is given on the basis of statutory assessment. The â€Å"special education needs† has a legal implication for providing service for the children who are not able to learn with time, as their friends do. The extra assistance which are required for those children are in â€Å"schoolwork, reading, writing, number work or understanding information, expressing themselves or understanding what others are saying, making friends or relating to adults, behaving properly in school, organizing themselves and some kind of sensory or physical needs which may affect them in school.† (What are Special Educational Needs?). The state asks for the school and nursery authorities to identify the children who are having learning disability and the SEN program is designed for helping those children. Once the child is identified, as requiring special educational needs, the school authorities have to formulate an educational plan to help the student, in

Research on the two careers Proposal Example | Topics and Well Written Essays - 1500 words

On the two careers - Research Proposal Example The areas of study included what the client could expect in terms of educational demands, salary expectations, working conditions, skills development and the level of contact with external forces within each career field. An interview was conducted with the client to uncover their demands in each of these five areas for each career choice. Human Resources Management The client indicated that a competitive salary with only four-year college education were the largest demands for a career in management in either human resources or hospitality management. Unwilling to seek a Master’s degree due to cost and personal obligations, it was necessary for Open Options to satisfy these demands for careers only requiring a four-year Bachelor’s level degree. The role of human resources manager, in most industries, requires only a Bachelor’s in Human Resources in order to receive the average salary of $59,310 (payscale.com, 2011). This was the salary for Lowe’s Home Imp rovement and was competitive with most other industries both retail and non-retail. Educational demands in the role of human resources manager are related to basic business courses, knowledge of applicable labor laws, marketing, and organizational communication. These are typical four-year degree courses that build a rounded applicant profile for the role of HR management. The client indicated that there was a need for a working environment that required little in terms of physical labor and also one where there was a high reliance on technology in daily role obligations. This is why Open Options determined that the career of HR manager would be best-suited to the client needs. For example, the HR manager often utilizes the human resource information system (HRIS) with is â€Å"a composite of databases, computer applications, and hardware/software necessary to store, manage, deliver present and manipulate data† (Ngai & Wat, 2006, p.299). The working condition for an HR manage r is one where technology is integral to serving low-level business populations and also large-scale corporate or multinational business environments. It is thus suited specifically to accommodate needs as identified through the interview. Skills required for the role of HR manager, it was identified through research, include knowledge of human psychology above and beyond the educational degree. â€Å"Human beings are sensitive and reflect on what they experience, responding to inner feelings and interpretations† (Sandoff, 2005, p.530). In order to be an effective HR manager, it is necessary to understand what motivates individuals at the sociological and psychological level in order to gain their commitment and avoid resistance to corporate change practices. Because the client indicated that they were people-focused and enjoyed diverse working environments, it was determined again that the role of HR manager was absolutely suited to fit these needs. When inquired as to wheth er the interviewee would rather work independently or with outside forces in daily job role, a strong inclination was discovered for external consulting based on the high level of people-friendly personality traits. The role of HR manager requires the individual to work with diverse individuals from multiple business sources, including regulatory forces that monitor labor conditions,

ENVS Essay Example | Topics and Well Written Essays - 1000 words

ENVS - Essay Example Interaction between contaminated water and body surfaces of plants and animals also has adverse consequences to establish significance of water quality to environmentalists. This paper reports on water quality of a section of Cherry Creek, based on results from a field study. The experiment aimed at understanding the anthropogenic and natural sources of common water pollutants and understanding the role of sampling and sources of errors in performing an experimental analysis. The study was conducted on July 16, 2013, from Denver country’s Platte River and the experimental procedures implemented near bridge down. The one hour exercise was conducted in the afternoon in a sunny weather and a temperature of 790 . Prior 48-hour period to the exercise had an average temperature of 73.50 and a combination of rainy and sunny weather. Existence rain prior to the study indicates chances of pollution while the river section had algae growth of five percent, no submerged aquatic plants wi th grass vegetation along the road to the stream site. The stream’s bottom was majorly composed of sand, 60 percent, gravel, 10 percent, silt, 10 percent, and rock shelf, 20 percent. Water contamination from pollutant gases that gets absorbed in rainwater and washed materials from earth’s surface were therefore anticipated. ... The jar was then held near the bottom of the stream and water collected from an inverted position of the submerged jar. Water was allowed into the jar for 30 seconds and turbidity chart used to determine the water’s turbidity level. The water was emptied into the stream and the same collection procedure repeated for tests on alkalinity, dissolved oxygen, hardness, nitrate level, Ph level, phosphate level, ammonia level, water temperature and coli form bacteria. Data Data shows concentration of the tested components that dissolved in water: alkalinity, dissolved oxygen, nitrate, and ammonia. Concentration was measured in ppm and the different minerals had different concentration level in the stream water. Other measures are turbidity, hardness, pH, coli form bacteria and water temperature. The following table summarizes results of the experiment. Turbidity Alkalinity DO Hardness Nitrate pH Phosphate Ammonia Q Tem 40 JTU 180 ppm 3 ppm 240 ppm 2 ppm 7.6 1.5 ppm > 4 ppm 34.61 260 c The table bellow summarizes data from other experimental groups. Turbidity Alkalinity DO Hardness Nitrate pH Phosphate Ammonia Q Tem H1 20 JTU 120 ppm 6 ppm 360 ppm 1 ppm 7.5 1.5 ppm 0.25 ppm 32.536 250 c CCH2 0 JTU 240 ppm 4 ppm 280 ppm 0 ppm 7.5 4 ppm 0 ppm 22.16 270 c PH2 80 JTU 180 ppm 4 ppm 240 ppm 2 ppm 7 4 ppm 0 ppm 20475 280 c Results The study reported a turbidity level of 40 JTU. This value is far beyond the recommended maximum level of 0.5 JTU. Reported rainfall in the past 48 hours to the exercise could be one of the reasons for the high turbidity level. While this is a temporary but recurrent cause of turbidity, a more permanent cause could be washed physical materials from the streams banks and base at regions before the

Rise of Two Operas Essay Example for Free

Rise of Two Operas Essay The Italians and the French have been two prominent figures in the world of opera music. Their music in the field of tragedy has been flourished by history and emerged from different social context and background. Opera traced its roots from Italy. Opera, in its earliest form can be traced from various types of Italian literature. The themes, moods, and subjects of opera can be associated with Italian poetry, drama, and allegory (Kimbell, 1991. p. 19-21). More importantly, opera particularly the opera seria, has originated at the height of the Renaissance period. The Renaissance art were centered on man. It revolved around man’s greatness, man as passionate, and as virtuous. The themes of opera described the life of the Italians as a whole, which is according to Luigi Barzini: The pleasure of Italy comes from living in a world made by man, for man and on man’s measurement (cited in p. 3). A theme deeply embedded in reality. Revolving around this theme, opera became for the sole purpose of entertainment. However as Renaissance became a period for the flow of rising ideologies, the face of opera changed into a moving art combined with philosophy and moral teaching. This aim served the purpose of educating its audience and not just by mere entertainment (Kimbell, 1991. p. 182). It was Apostolo Zeno and Silvio Stampiglia who created operas that were historical in nature. Stampiglia wrote a series of operas relating early Italian history and Zeno’s works have long been distinguished as a combination of moral and scholarship significance (p. 183). The Italian opera seria had not been completely tragic but became more serious. Metastasio offered ‘suspense’ or in Italian ‘sospensione’ in place of tragedy, in which the audience were presented the internal conflicts of the protagonist. Seeing this kind of progression, the French opera scene has its trend going on as well. However, as mentioned from the beginning, opera had its roots originating from Italy. There were no French composers at that time. It was an Italian national who moved to France, named Jean-Baptiste Lully who was said to have popularized opera to the French people (Edwards, 1862. . 14). Origins of French opera may have come from other form of arts such as ballet. Ballet has incorporated music with dramatic dance routines thus making as a basis into recreating a dance that has dramatic dialogues in the form of music (Grouts Williams, 2003. p. 22). Lully gained full monopoly when spreading his music due to his friendship with King Louis XIV. He collaborated with the likes of Quinault to create operas which they called tragedie en musique (Anderson, 2003. p. 3). It is important to note that though it was the time of Rennaisance in Italy, it had been a slow progress for France to grasp the music from other countries. Since Lully gained monopoly for production of operas, the monarchy controlled the flow of music from outside in accordance to Lully’s advice (p. 1). Basing it from here, the themes of the operas that were being played within King Louis XIV’s court still centered on mythical themes rather than on humanism. The plot of tragedy focused on mythical characters and fictional conflicts (Easterling, 1997. p. 136).

Pharmacists Role in Complementary Alternative Medicines

Pharmacists Role in Complementary Alternative Medicines Pharmacists Role in Complementary Alternative Medicines The first section of this paper will provide background information on the use of complementary and alternative medicines (CAMs) and their associated risks and benefits. Additionally, information on the pharmacists’ role in CAMs and services in their pharmacies will be discussed. Next, the theory that potential ethical conflicts arise for pharmacists between keeping the health and wellbeing of clients and the community as their primary concern versus the prospect of turning a profit will be considered. Before concluding, other important ethical issues including duty of care, and liability will be discussed. Background The term CAM refers to any healing practise that doesn’t fall under the heading of conventional medicine. It encompasses not just pharmaceutical preparations, but diet, and traditional forms of health care including acupuncture, Chinese medicine, homeopathy, etc.1 In the past, people who sold CAMs were sometimes referred to as quacks, or someone who promotes unsupported methods that lack scientifically credible rational.2 CAMs were regarded as old wives tails, and their claims dismissed by the medical community.3   More recently CAMs have become a prominent feature in today’s health care regimens. In 2000 according to the Therapeutic Goods Administration (TGA) 52 percent of Australians were using at least one non-prescribed complementary medicine.4 The Therapeutic Goods Act of 1989 effectively legitimised CAMs by allowing them to be entered into the Australian Register of Therapeutic Goods (ARTG) as a listed medicine. They have to meet a lesser set of standards than conventional medicines, which is one of the major concerns of allopathic practioners.5 With the passing of this act, pharmacies could legitimately sell two types of products; medicines for which there is scientific evidence   (prescription and over the counter products) and unproven medications (some CAMs) that may lack efficacy.   There are many risks associated with using CAMS including direct risks, substitutions made, nonprofessional advice received, and unreliable diagnostic tests.6 In some cases, CAMs have caused serious harm. The adverse effects range from infection due to dirty acupuncture needles, altering the effectiveness of other pharmacologically proven agents, to death from chiropractic manipulation. Substitutions pose a great risk for serious conditions. Replacing conventional treatments with CAMs can lead to many adverse effects. For example, treating melanoma with a herbal ointment rather than surgery, radiotherapy, or chemotherapy can have disastrous consequences. Some patients, especially those with life threatening illnesses, will try anything to improve their symptoms. Some CAM practitioners take advantage of this and recommend treatments that are very costly and at the expense of other proven treatments. Unproven tests include, but aren’t limited to, reflexology and electro-dermal t esting.6 The danger in this type of testing is the high likelihood of misdiagnosis.   Despite the large body of evidence in the scientific community of the poor efficacy of CAMs, there is some evidence for their use as seen in cranberry for urinary tract infections St. John’s Wart for depression and a variety of others.7 In 1993 Australians spent an estimated 1 billion dollars on CAMs and by 2000 that number had risen to 2.3 billion.8   Shockingly, only 57 percent of Australians reported or discussed the use of these products to their doctors.9 The potential dangers outlined above and these statistics show the need for a pharmacists intervention. Pharmacist’s Role Pharmacists are a vital part of the allopathic health care team, often being the first port of call for patients requesting CAMs.10   The community pharmacy is an ideal environment to deliver quality, cost effective, and professional services to the general public. Patient’s safety and access to this high quality care is of paramount importance.11 Pharmacists counsel life style choices, recommend an appropriate non-prescription medication, or refer patient’s to a physician to improve outcomes.12      When responding to enquiries about CAMs pharmacists need to consider a variety of issues. The customers’ cultural and social beliefs and desire to take control of their own treatment should be viewed non-judgementally. Pharmacists need to stay up to date, and be aware of evidence to support the use of different products. Information about CAMs should be provided on an evidence-based level so the most accurate information is delivered to the patient. Pharmacist s also need to be aware of potential interactions with conventional products, and report adverse drug reactions to both the Adverse Drug Reaction’s Committee and the product’s sponsor.7 Furthermore, pharmacists must remind patients that CAMs are medications and should be openly discussed so potential interactions and side effects can be identified. Ethics and profit In a 2005 study of 484 community pharmacists in New South Wales 77% of respondents personally used CAMs and said that they offered CAM products for sale in their pharmacies. A majority of the pharmacists believed CAMs enhanced customers’ image of the pharmacy and 87% reported they increased customer numbers and annual sales.13 From these results it is evident that a potential conflict between promoting and selling CAMs and ethics could arise. Pharmacists are intrinsically placed in an ethical dilemma daily. They have dual roles as health care providers and businesspeople. As health care professionals they are expected to provide a high level of unbiased health care, while their business side is expected to sell products and generate a profit. Professional and business roles are generally believed to be in conflict with each other and roles are traditionally viewed as being exclusive. According to Chappell et al community pharmacists are one of the few occupations where professional and business values co-exist.   They found no correlation between the value placed on business and the level of care or â€Å"professionalism† displayed by the pharmacists. This suggests pharmacists are able to act dually as a salesperson but still deliver professional information.14 The degree of professionalism has been called into question by Kennedy et al. They demonstrated that in some cases pharmacists, especially proprietors, sometimes recommend more expensive products when a cheaper generic version is available, but the overall outcome was satisfactory. All pharmacists recommended an appropriate treatment for the condition but the product selected differed among owners and employee pharmacists. Although the patient received a high level of care, the fact that he or she had a cheaper option calls the level of professionalism into question.  Ã‚  Ã‚   Further evidence for professionalism is seen in a study by Perepelkin et al. where they found pharmacists, regardless of their ownership structure, are professionally oriented in their practise. The difference in services provided was only seen in terms of professional autonomy, decision-making and amount of control. There was no difference in the amount of profit-driven goals between the groups.16 Similarly, in a recent study, Kronus found that pharmacists, regardless of their role orientations (business versus professional), were similarly motivated by service and income values. She suggested that the theoretical model suggesting that business is based on extrinsic values and professionalism is based on altruistic values should be revised when talking about pharmacy. She found altruism (professionalism) was the dominant factor in the field of pharmacy. Since most pharmacists are salaried employees there is little pressure to increase profit by pushing CAMs with no supporting evidence. It would be very easy to jump to the conclusion that the need to make a profit would in some way have a negative effect on pharmacy owners or employed pharmacists (reward systems) to act as independent ethical health care providers when CAMs are viewed as huge profit generators.17 Wingfield et al suggest that ‘ethics is so integrated and intrinsic to daily practise that there is no need to single ethical issues for special attention,’ as demonstrated by a lack of a journal dedicated to pharmacy ethics (there are ethical journals for medicine and nursing). Rather the ethical behaviour of the pharmacist is displayed in all aspects of daily practise culling the drive for profits.18 In Australia the behaviour of pharmacists is guided by the Pharmaceutical Society of Australia’s Code of Professional Conduct (PSACPC).7 Pharmacists sell CAMs in pharmacies that does give credibility to CAMs and to some extent promote their usage.   Also, pharmacists are in a unique position to influence the sale of certain products. For example, CAMs are used by 60 to 80% of oncology patients. According to the British Columbia Cancer Society the psychosocial needs of patients including ‘increased anxiety, need for information, maintenance of a sense of hope, a sense of control, negative experience with conventional medicine, and perceived holistic nature of complementary medicine,’ is the reason for the high percent of people using the medicine and not the availability of the product in pharmacies.19 Pharmacists don’t need to promote these products as psychosocial needs are very powerful and patients are clamouring for these medications in increasing numbers. Although the pharmacy is a business, business objectives wouldn’t necessarily suffer, as knowledgeable and honest patient counselli ng plays an important role in customer satisfaction and thus profitability. An unsatisfied customer would certainly seek another pharmacy.20 These satisfied customers will keep coming back to the pharmacy not just for CAMs but for prescription and personal products as well. This is a win-win situation for both the customer and the pharmacist who now has the opportunity to play an active role in the health of the patient as well as make a decent living. It is the pharmacist who provides the factual advice for patients who seek out these products. Through professionalism this temptation to take advantage of this behaviour is easily removed. Pharmacists develop close relationships with their customers by taking time to talk about medications. Professional orientation happens because patient counselling of all medications including CAMs is at the cornerstone of ethical pharmacy practice and high quality care. As previously stated, the pharmacist’s role in counselling in the use o f CAMs is the most effective in ensuring the health and safety of patients.   When counselling patients, pharmacists follow the PSACPC. By following the PSACPC pharmacists remain in the scope of their practice, are covered for malpractice liability for negligent care and for informed consent issues, and foremost, ensure the health and well-being of clients and the Australian community. Under the 9 key principles of PSACPC, counselling advice for CAM usage is about adhering to the principles of evidence based medicine and critically examining and honestly informing patients of unproven medications and therapies. Pharmacists must also respect the beliefs and judgements of patients and other health professionals while regarding the patient’s autonomy to make decisions regarding their own treatment but at the same time offering guidance and advice based on evidence-based information.21  Ã‚   Thus, when a pharmacist gives advice on the use of Cams based on PSACPC guidelines after considering clinical and patient factors there may be commercial benefits but they do not necessarily compromise the quality of the recommendations. In pharmacy, ethics and profit can and do exist without conflict in the sale of all products.   Duty of care regarding informed consent As outlined above a majority number of Australians are using and want to use CAMs. It is therefore the duty of pharmacists to discuss these treatments with their patients.22 A study in the US found almost three-quarters of the pharmacists surveyed worked in stores where herbal medicines were sold.23 Almost half of the pharmacists agreed with the statement, ‘herbal medicines are not accepted by the majority of my colleagues’ and only a quarter agreed with the statement ‘herbs are efficacious’.24 25 It can be seen that most pharmacists don’t believe in the products so recommending them is difficult. But, they have an ethical obligation to adhere to the PSACPC and respect the autonomy and dignity of the patient to make informed decisions.21 Once the pharmacist has disclosed and openly discussed the different treatment options his or her ethical obligation has been fulfilled. In the United States this is taken one step further.   It is a legal obligatio n for practioners to disclose information for CAMs if they are generally accepted within the medical community. Failure to do so can result in legal action.26 Liability in referring to CAMs Liability issues are new territory for pharmacists recommending CAMs to patients. Homeopathy, for example, is completely contradictory to the principles of modern pharmacology. The incompatibility of homeopathic paradigms with all of basic science must be taken into consideration.22   Keeping in line with the PSACPC, pharmacists cannot ethically recommend a product or service to which they know there is no evidence to support its use, and is not in the best interest in the health and well being of the patient or community. In Canada, The Pharmacy Code of Ethics requires pharmacists to never knowingly provide any products which are not good quality.27   In the United States medical practitioners can be held liable for referring patients to a CAM practitioner if they â€Å"should have known† the CAM practitioner might be â€Å"incompetent†. This shows that medical professionals are not just ethically but legally responsible for protecting patients from inferior medical treatments.28 CAM practitioners argue that their treatments are holistic and some of the therapeutic benefits are unmeasurable. Because western medicine supports evidence based on quantifiable outcomes the two doctrines of practise often clash. It is very difficult to compare the s piritual healing power of CAMs to the physical healing of western medicine.28 As long as the CAM treatment is not interfering with a patient’s level of care, there is no reason to discredit a potential treatment that may make a patient ‘feel’ better. An honest answer to the efficacy of a specific CAM and reporting that some people say it makes them feel better is the best course of action.     Further compounding the issue is the training level of the CAM providers. Most are not ‘health care professionals’ and have inadequate understating of biology, pharmacology, patho-physiology, and other sciences that govern western medicine. Since pharmacists cannot ethically refer a patient for a treatment that they believe may affect their health or wellbeing the ethical dilemma of whether to recommend this option is exacerbated. Although, a recent Canadian study reported only 2% of pharmacists felt they had adequate information about complementary and alternative health care, they are still better suited than CAMs to provide information on the prodcuts.10 A pharmacists guidance is based on principles 1 and 8 of the (PSACPC), advising patient of the scientific evidence available while still respecting their autonomy.28 Where CAM providers have no such code of ethics. Conclusion This paper examined the background issues associated with complementary and alternative medicines (CAMs) and the associated risks and benefits that go along with them. Additionally, the pharmacists’ role in providing CAMs was discussed. The many ethical issues, including profit, although seemingly complex can and should be negotiated using the PSACPC guidelines. The introduction and sale of CAMs have not changed the pharmacist’s code of ethics where the patient’s well-being and health remains the focus. As CAMs are becoming more popular and accepted by the public, pharmacists need to have a high level of understanding of the many issues associated with them. The ethical issues pharmacists face daily are apparently being handled appropriately according the literature cited, and based on the public’s perception of pharmacists being one of the most trusted health professionals.

Party System and Dynamics in Tanzania

Party System and Dynamics in Tanzania Over the course of history, political scientists have attempted to create social laws that can explain and predict how government functions. One of the most famous examples of this law is Duvergers Law. Duvergers Law proposes that FPTP (first-past-the-post) electoral systems produce party systems in which two major parties competitively vie for power. This hypothesis comes from the definition of winning used in electoral systems. Since winning is defined as getting as many votes as possible to gain a majority vote (+50%), it is only natural that two major parties emerge (Riker 1982). However, looking at the case of the African country, Tanzania, Duvergers Law is not clearly applicable and the lines defining major parties become muddled. In short, the law does not hold in this specific case and should be discarded when examining Tanzanian politics. To examine the party system and dynamics in Tanzania, one must look closely at the circumstances concerning its inception. After gaining independence from the UK, Tanzania was ruled by a single party known as TANU, after the party intimidated all other parties to extinction in 1963 (Ngasongwa, 1992). However, the 2nd president of Tanzania of the CCM Party, Ali Hassan Mwinyi, formed a commission known as the Nyalali Commission which amended the constitution in 1992 and allowed any political party to run for presidency (Tambila 1995). This ushered a multi-party political system along with more varied competition into the country. However, looking superficially at election data from 1992 onwards, a single party, the CCM, dominates Tanzanian election polls. Since 1992, the party wins the presidential and legislative elections with a margin of more than 60%, even reaching almost 80% in the 2005 presidential elections. This means that 20% to 40% of the votes are divided between the lesser parties (Elections in Tanzania 2011). This considerable discrepancy puts a serious limitation on the application of Duvergers Law on the country. There is virtually no other party competing with the CCM and one cannot help but wonder if Tanzania is slowly returning to a state with an informal one party system. Duvergers Law fails to explain Tanzanias current political party system for two reasons: Tanzania is not a multi-party system, but instead is a single party system feigning democracy. Duvergers Law fails to account for the various political pressures and institutions that affect the way a country is run. It does not consider corruption, pressures exerted by foreign governments, conditional foreign aid, and postcolonial legacies that insidiously affect politics. Tanzanias dysfunctional party system becomes clearer when looking at the results of the 2005 presidential election where CCM faced the biggest threat to its power. Polling lower than ever before, they narrowly won the Tanzanian Presidential elections with 58.46% of the vote. In Zanzibar (an autonomous entity part of Tanzania), leader of the opposition party CUF announced that he won the vote over CCM. What followed was bizarre. The chairman of the Zanzibar Electoral Committee annulled the vote and in the following election, the CCM won more than 90% of the votes along with most of the legislative seats offered. With limitations on opposing political parties and increasingly restrictive free speech (Tanzanian government threatened to suspend 30 news outlets and closed another two), Tanzanian politics now carries an undemocratic atmosphere (Roop, Weghorst 2016). Two factors can explain this strange turn into an arguably undemocratic country. The opposition is weak and disorganized and the CCM is viewed as a benevolent political party by the citizens, thus weakening any resolve for change. Also, the opposition lacks the resources available to the CCM and the CCM has plenty tactics to employ to suppress opposition. According to Hoffman and Robinson, The CCM employs three strategies to impede its competitors: 1) regulating political competition, the media, and civil society; 2) blurring the boundary between the party and state; and 3) the targeted use of blatantly coercive illegal actions (2009). Such practices directly conflict with the characterization of Tanzania as a democratic state. Hoffman and Robinson corroborate this and argue that Tanzania is now a single party authoritarian regime. If Tanzania is not a democratic state and only has one party, then Duvergers Law is automatically out of the question. However, if CCM is really that authoritarian, why would it be the party responsible for turning Tanzania into a multi-party system? The answer to this question is also the answer to why Duvergers Law cannot be applicable in cases where there are many complex political forces at play. In Samuel Huntingtons book, The Third Wave (1991), he argues for transplacement which is when a ruling party initiates a certain change and molds the rules to its benefit. This is arguably what CCM did. In another dimension, according to Nyirabu in a kindlier assessment, the CCMs top leaders saw that democracy was sweeping the world and decided that Tanzania should also welcome it with open arms, since there would be no point in resisting global change (2002). Although a beautiful and open invitation, it is not that simple. Tanzanias foreign aid must be considered when looking at its turn into democracy. It is in this key point where Duvergers Law also fails. Tanzania was receiving more than 30% of the countrys GDP in foreign aid. The donors were pressuring the ruling party, CCM, to accept a democratic system that allowed multiple parties to exist in the political sphere (Hoffman, Robinson 2009). Thus, the meddling and pressure on CCM helped shape the party nature present in Tanzania today by giving CCM the incentive it needed to create a political institution where it reigns supreme. Duvergers Law also fails because it does not consider the attitudes of the people of Tanzania. According to a 2008 Afrobarometer survey, 90% of respondents said they felt closest to the CCM party and 76% of respondents said if elections were to be held soon, they would vote for the CCM party. This complacence with authority has colonial roots. As argued by Schneider, Tanzanian political imagination is corrupted with colonial images where citizens constantly compare their current situation to their much-worse situation during colonialism. State elites and officials also construct a paternal and nationalistic image for themselves that makes citizens see themselves as wards of a loving state (2006). This recalling of colonial roots explains why CCM is the most popular party and how corruption of states goes unquestioned. Finally, Duvergers Law gives a uniquely Western perspective on politics that knows nothing of colonialism and ethnolinguistic divisions that occur during and after colonialism. To apply such a social law on a country that has been deeply affected by its colonialist past would be unwise. As argued by Mozaffar, Scarritt, and Galaich (2003) and van de Walle (2003), African democratic countries have deep ethnolinguistic challenges that cause party splintering per patronage, regardless of agenda or principles. Parties are divided according to history, clientelism and man-made institutions colonialist legacy imposes, such as race and favor, that can cause a huge shift in public opinion, party systems and opposition formation. Colonialism also leaves postcolonial countries in a dearth of political consciousness that is required to form healthy oppositional groups. It leaves countries with none of the experience needed to sustain a free and democratic country that entertains freedom (Bernhar d, Weghorst 2014). Although these criteria are not directly applicable to Tanzania, they are important limitations to Duvergers Law and must be taken into account, nonetheless. While Duvergers Law is useful in predicting political patterns, the theory fails to account for many important aspects in political parties development. This is seen especially in the case of Tanzania, where the Law is not clearly upheld. Duvergers Law speaks more closely to Western experiences where stable and long-living political climates pervade. Amending the law to fit Tanzania would require much introspective analysis of other political factors that shape the countrys party dynamics. Also, the law can only apply to countries that have a flourishing democratic system with oppositional parties and this is not the apparent case with Tanzania. References Elections in Tanzania. Elections in Tanzania. N.p., March april 2011. Web. 24 Mar. 2017. Hoffman, Barak, and Lindsay Robinson. Tanzanias Missing Opposition. Journal of Democracy 20.4 (2009): 123-36. Web. Huntington, Samuel P. The third wave: democratization in the late twentieth century. Norman: U of Oklahoma Press, 1993. Print. Mozaffar, Shaheen, James R. Scarritt, and Glen Galaich. Electoral Institutions, Ethnopolitical Cleavages, and Party Systems in Africas Emerging Democracies. American Political Science Review 97.03 (2003): 379-90. Web. Ngasongwa, Juma. Tanzania introduces a multià ¢Ã¢â€š ¬Ã‚ party system. Review of African Political Economy 19.54 (1992): 112-16. Web. Nyirabu, Mohabe. The Multiparty Reform Process in Tanzania: The Dominance of the Ruling Party. African Journal of Political Science 7.2 (2002): 99-112. Web. Riker, William H. The Two-Party System and Duvergers Law: An Essay on the History of Political Science. The American Political Science Review 76.4 (1982): 753-66. Web. Roop, Sterling, and Keith Weghorst. The 2015 National Elections in Tanzania. Electoral Studies 43 (2016): 190-94. Web. Schneider, Leander. Colonial Legacies and Postcolonial Authoritarianism in Tanzania: Connects and Disconnects. African Studies Review 49.01 (2006): 93-118. Web. Tambila, K. I. The Transition to Multiparty Democracy in Tanzania: Some History and Missed Opportunities. Law and Politics in Africa, Asia and Latin America 28.4 (1995): 468-88. Web. Walle, Nicolas Van De. Presidentialism and clientelism in Africas emerging party systems. The Journal of Modern African Studies 41.2 (2003): 297-321. Web. Weghorst, Keith R., and Michael Bernhard. From Formlessness to Structure? The Institutionalization of Competitive Party Systems in Africa. Comparative Political Studies 47.12 (2014): 1707-737. Web. Outline: Introduction Brief introduction to social laws and hypotheses Insert Duvergers Law definition from paper handout Briefly explain the law in detail Reference Rikers analyses regarding majority vote and FPTP systems. If winning is defined as the most votes, that is, as a plurality, then one might reasonably expect a two-party system owing to the necessity under this definition of maximiz- ing votes. (Riker, 1982) Mention case study: Tanzania Thesis: Duvergers law doesnt work in the case of Tanzania Body 1st paragraph: Explaining Tanzanian transition to multi-partism. Mention 8th Constitution amendment Explain historical context regarding Tanzanian political history. Ngasongwas 1992 paper on TANUs hold on Tanzania Tambilas 1995 paper on hopeful Tanzanian transition to actual democracy. 2nd paragraph: Mention election data from 1992 Mention discrepancy with data and that CCM dominates the election polls 3rd paragraph: Why Duvergers Law fails: Tanzania is not democratic and is a single party state Duvergers law is largely Eurocentric and does not take into account the various challenges non-Western countries go through 4th paragraph: Explain first failure of Duvergers Law with failed Zanzibar elections and restricting free speech 5th paragraph: Factors that cause this: CCM viewed as savior Weak, disorganized opposition with zero resources Explain oppositional lack of resources and CCMs abundant wealth. Hoffman and Robinsons paper 6th paragraph: Explain how CCM could both be the original usher of democracy and an oppressor Transplacement concept 7th paragraph: Foreign aids effect on transplacement Why CCM transitioned to democratic state (to continue foreign aid receival and ensure power) 8th paragraph: Attitudes of people towards CCM Colonial images haunting peoples outlook Schneiders paper Paternal image of officials How this affects CCMs rise of power and continuous consolidation of it 9th paragraph: Colonial effects on oppositional formation No knowledge of how to run democratic state Deep fissures in society Deep ethnolinguistic problems Opposition divided based on bloodlines Mention Mozaffer and Bernhard papers referencing this dilemma Duvergers Law=largely Eurocentric Conclusion Duvergers Law not applicable to Tanzania for above reasons Amendment would require in depth work

Fiscal Fallacy: The Political Motives in the Current Union Assualt Essa

â€Å"Once again, Republicans are trying to erase the history of America’s working people† (Connel 1). It is happening in Maine where Republican governor Paul LePage has arranged for a 36 foot long mural depicting the state’s labor movement history to be removed from the Department of Labor. In addition, conference rooms in the Department of Labor named after prominent labor movement officials such as Frances Perkins (Connel 1). The actions of Maine’s Republicans and the similar actions of Republicans across the nation are only the superficial layer of the current attack on a weakened labor movement. The latest siege in the longstanding decline of American unions, conservatives are waging this assault under the guise of fiscal responsibility. In reality, it is nothing more than a political attack meant to undermine one of Democrat’s key supporters. American unions have been regressing since the 1970’s. With private sector unions firmly place d under the corporate heel conservative forces across the nation are now turning their attack on public unions, hoping to eliminate their collective bargaining rights and effectively crush them altogether. Governor Walker and his allies claim fiscal responsibility and balancing budgets as the reason for the long list of concessions they demand from unions. However, in going after the unions’ collective bargaining rights of the unions it shifts from an economic issue to a politically motivated assault that could have long-term economic consequences for the American public, the middle and working class especially. The Republicans currently assert that they have the best interest of the middle and working class in mind with their targeting of state unions. Federal stimulus money is ending; in 2012, ... ...ing their own party, specifically tailored to the needs of unions and the working class. By aligning themselves with Democrats by default, they have given up a large measure of their political power and bargaining ability. Democratic Party needs do not always much up with those of unions and the working class and often the Democrats will force unions to push their needs over the unions own. In establishing their own political party they could, on a state and local level, push forth the working people’s agenda unhindered. Another possible solution would be for unions to reorganize and reenergize their recruiting base, paying special attention in recruiting women, young adults and immigrants around common working class interests. By diversifying their membership, base unions could stand to regain some of the numbers and collective bulk of their negotiating power.

Comparing the Hero in Sophocles Oedipus the King, Homers Odyssey, and

Heros in Sophocles' Oedipus the King, Homer's Odyssey, and Tan's Joy Luck Club      Ã‚  Ã‚  Ã‚  Ã‚   In world literature, there are two types of archetypal protagonists, the mythic hero and the tragic hero. Mythic heroes, like Homer's Odysseus, represent the combination of superhuman virtues and human imperfections. These traits create a supernatural adventure with a realistic character. The mythic hero is favored by divine powers and eventually achieves a certain goal or completes a certain journey. On the other hand, there is the tragic hero, like Sophocles' Oedipus. The unfortunate tragic hero has a penchant for attempting to escape a doomed fate. The tragic hero lives under the shadow that the gods place. Literature throughout the expanse of time has hovered around the lives of the mythic and tragic heroes. Contemporary novel The Joy Luck Club explores these themes as well. The two characters, Lindo Jong and Ying-ying St. Clair, exemplify the polar extremes of mythic vs. tragic.    Both mythic heroes and tragic heroes must pass through a series of set obstacles and wind their way toward a certain goal. The major difference between the two archetypes is how the protagonist reaches the end. Mythic heroes transgress through their journey with optimism and a building sense of accomplishment. Tragic heroes operate on the slant of pessimism and failing attempts to escape from a worse fate. To put it more clearly, the mythic hero tries to run toward success, while a tragic hero tries to run away from failure. In this sense, the story's attitude, the protagonists' control on fate, and the divinely ordained sequence of events work together to form the type of hero that takes the lead.    Odysseus, hero of... ...ea House 1988 Graham, A. J.   "History and Heros," Princeton 1999 Homer. The Odyssey. Trans. Robert Fagles. New York: 1996 Lucas, D. W., ed. Aristotle: Poetics. Oxford: Oxford U-Clarendon P, 1968. Sophocles.   "Oedipus Rex."   An Introduction to Literature, 11th ed.Eds. Sylvan Barnet, et al.   New York: Longman, 1997. 800-836. Tan, Amy. The Joy Luck Club. Vintage Contemporaries. New York: A Division of Random House, Inc., 1991. Tracy, Stephen V., The story of the Hero. Princeton, N.J. : Princeton University Press, c1990.   PA4167 .T7 1990

The Lion and the Jewel by Wole Soyinka Essay -- Lion Jewel Soyinka Ess

The Lion and the Jewel by Wole Soyinka The three main characters in ‘The Lion and the Jewel’ are called Sidi, Lakunle and Baroka the Bale. Each character has different thoughts about one another and each views the society in a different way. This essay introduces and describes each character and analyses their role in the play. Sidi ==== Sidi is the first character that the audience meets. She is a very attractive woman, known as the village ‘belle’. Her attractiveness influences her personality, by making her quite vain. An example of her vanity is when she receives photos through of her that featured in a global magazine, taken by a western man. The photographs, also affect Sidi’s perception of Baroka, by making her believe that she is a better person, judging by the picture size difference in the magazine. Sidi is heavily influenced by tradition, which is outlined more than once throughout the play. The opening scene shows how Lakunle offers to carry Sidi’s load. Sidi refuses, because it is traditionally the woman that carries the load and if other people saw, then Sidi is afraid that people may start to shun or mock her. The relationship between Lakunle and Sidi is clarified when Sidi asks for a Bride Price. Lakunle is reluctant to give her money and insists that she take his token of love and loyalty instead. Due to Sidi’s heavy belief in tradition, she has to decline his offer and demand the bride money. If she accepts his offer, then her value and status in the village can potentially be diminished. Sidi tries to be quite intelligent by making remarks that counter act another persons. However, Baroka and Sadiku trick Sidi into marrying Baroka and becoming his youngest wife. Even Sidi’s... ...n any way (this is true in Sidi’s case). Baroka is an intelligent man and can use his words to fool people. Much like the railway track story and Sidi’s case. Baroka uses more words/ psychological flirting moves, rather than active moves. In the play Sidi comes to Baroka because of the news given to her by Sadiku, note that Baroka does not physically seduce her. He is able to analyse Sidi and her thoughts and then produce an effective seducing tactic. These 3 characters all have similarities and differences. Once we find out these differences, it is easier to see why the characters react in the way that they do. We are able to see why Lakunle is an outsider, why Sidi does not like one aspect of Lakunle, and how the Bale finally seduces Sidi. The Lion gets the Jewel and the outsider is left standing there watching for other women ready to go for the bait.

Reaction paper about National Museum Essay

The only time I went to National Museum was when we were required visiting and taking a photo of the manunggul jar, as part of our historic appreciation in our History subject. On July 26, 2013, my peers and I went to National Museum to see antique and prehistoric things about the early times. I feel humiliated and embarrass for not visiting a museum while I find time to go to arcade doing nonsense things. I didn’t know that there are two museums, but we were informed by the guard on duty when we went to one of these museums that there is only one museum. However, the main museum is actually the Museum of the Filipino People located in the former Department of Finance Building. And the National Museum that we know is currently called the National Gallery of Art, which is an extension of the museum. With a wage of 50.00 per head, me and my comrades were mesmerized and was amazed by the beauty of the systematize preservation of the ancient items inside the museum. We were instructed to leave our things in a room. More like a baggage room. And bring with us important things like gadgets and wallets. It is not allowed to use pen inside the galleries. However, a pencil is accepted. We were escorted by a steward which we can ask questions regarding some information about the entities inside the gallery. I was very startled when we walked by to the first gallery. The colonnade is about the Treasures of the San Diego: The Wreck Site, wherein we feel fascinated by the different survived apparatuses in San Diego. We saw their defensive weapons which included the breastplates, leather doublets, shields, and protective helmets. Also, we saw the offensive weapons for hand-to-hand combat like daggers and swords. With 27 steps in the stair, we reach the second destination. The second gallery was composed of different things in the Philippines and Southeast Asian Contacts. There, we were quenched by thirst of excitement when our eyes lay upon the manunggul jar. Because finally we were able to take a picture . End the goal in this visit. But to be able to redeem the payments, we continued the voyage. I am so captivated about the artifacts. I have also seen a pitzel and some types of kettles. It has a smooth texture. We have also seen vessels and basins. Plates from the Chinese people during the barter period were also displayed in this part  of gallery. Like the first gallery there are some armors and weapons. We saw different types of jars in their different, styles, shapes, sizes and designs which enthrall my feelings. Some paintings hung in the wall allure me. It somehow brought different charisma to me. These paintings are about the Philippine culture during the Spanish era. My eyes were magnetized by the piece of metals that later I discovered to be elements like a piece of copper, gold,lead, and silver. The different types and sizes of teeth entice me. In this part of the gallery I was able to see some portraits of voyagers and colonizers with their works like Morga and Magellan. I was stunned when I saw the different insects like butterfly, grasshoppers and lizards in their different sizes and looks. But what surprised me most is the lizard with wings, later I learned that this insect was discovered by our National Hero, Dr. Jose Rizal. There are also some types of crabs. Shells are also spectacled in this gallery. With 24 steps upward the stairs; we are already on the colony of our third journey. We were greeted by the astounding different objects that were conserved in the gallery. Jars- the first object who welcomed us. Different kinds of jars like Spanish jars, Siamese jars, Dragon jars, Martaban jars, Brown-glazed jars from Thailand and etc. There was this sculpture or something like a exhibit of a true-volcano in this part of gallery. I was so wow because of the artisticity of these thing. There was also a painting of how the Cagayan people catch food by hunting wild animals and fishing. I feel a little bit scared when I look at the skullcap of a Tabon woman. I sense I was back when I saw the paraphernalia during the time of gardening. I was staggered by the ships and things for the water usage hung on the wall. There were also some kinds of weapons like bow, arrow, bolos, and sharp things. I wondered for what the map when we passed by. I was amused when I later inform that you press the button, the place where the light appeared is the place where you can find jade, carnelian and glass. The great thing was the Philippines is one of the luckiest country who possesses this luxury goods. I was staggered by the architectural type of structure about the early Filipino type of habitation. Again for the third time, I saw collections of jars, plates, and bowls. There was also an exhibit of the destroyed ship. It shows how they find some things on this wrecked ship. With 24 steps we entered the fourth gallery naming Don Vicente Gallery where we have seen the dresses and clothing of  the Filipino. Their ornaments and things for beautification. We saw musical instruments like gongs, flutes, xylophones, and stringed instruments. There was also wallpapers about how the ancient Filipinos’ education. I was enchanted and was feeling excited about entering a huge exhibit of a kubo gallery . I was careful in walking because the floor is slippery. However, I still enjoyed the gallery for it reminds me that Filipino culture is still the best among all. Gallery 5 is still close because of some renovation. I received an information that gallery 5 is about the modern technology. Going to the National Museum is a experience that I would never ever forget. This place reminds me of who I am and where did I come from. This shows how the ancient people survived in the early period. How their living was and how aggressive they are when it comes to merchandising things. I feel am again baptize not as a Catholic but as proud citizen of the Philippines. This serves as the evidence that it is truly more fun in the Philippines!

K-12 Program

Parents, Mentors, and Other Advocates As adolescents go through high school, they learn to take on more initiative, responsibility and independence. Parents and adults know that, in spite of their evolving maturity, many teenagers need support and encouragement as they begin take the initiative, act responsibly, and grow in their independence. Parents and mentors of youth with disabilities have unique opportunities to promote their successful transition to postsecondary education, employment, and full participation in adult activities.Families and mentors need to step in and assist in he transition process by providing adolescents direction in their exploration of interests, guidance in career and college planning, and encouragement and support. Employment Issues The number of students with disabilities entering and completing postsecondary education has increased dramatically in the last decade, yet people with disabilities are still underrepresented in the employment arena.Barriers to employment include lack of adequate support systems; little access to successful role models; lack of access to technology that can increase independence and productivity; and, most ignificantly, low expectations on the part of people with whom they interact. High school students may think they have plenty of time to decide on their career paths and acquire the skills they will need to market themselves successfully. They may also believe that completing a college or Job training program will guarantee them a Job. This is not true in every situation.Students with disabilities face unique challenges as they transition to employment. Like other students, they need to find a way to meet the specific qualifications of a desired Job as well as demonstrate transferable skills such as communication, roubleshooting, decision making, leadership, and problem solving. Unlike other students, they must be aware of accommodation strategies for specific situations and also know how to appropri ately disclose and discuss their disabilities as they relate to the performance of specific Job tasks.Work-based learning experiences allow students to develop methods for determining accommodations and practice disclosing and discussing their disabilities. Career planning and preparation should begin upon entering high school and occur throughout postsecondary studies. They do not need to settle on one area to pursue ight away, and they can change directions as they learn more about themselves and career options. They need to prepare for the long run-for a lifelong career or multiple careers.In today's competitive Job market it is essential that students possess skills and way students can start narrowing career interests and developing Job skills is through work-based learning experiences. Why should students with disabilities participate in work-based learning? Through the interaction of study and work experience, students can enhance their academic knowledge, personal developmen t, and professional preparation.Specifically, work-based learning opportunities can help a student apply practical theories from classroom work, clarify academic and career interests, develop human relations skills through interaction with co-workers, develop Job- search skills, develop resumes and cover letters, earn academic credit, gain contacts for employment after graduation, gain exposure to specialized facilities not available on campus, identify career assistance programs, and pay for your education. For students with disabilities, work-based learning offers additional benefits.Participating in work experience can give them chances to determine if they can erform the essential functions of particular Jobs with or without accommodations. In a Job setting, students can also practice disclosing their disabilities and requesting accommodations from employers. In addition, they can test which accommodations work best for them. These experiences help students with disabilities dev elop the confidence and self-advocacy skills needed for success in challenging careers. What are examples of work-based learning experiences?Below are descriptions of typical activities and services offered at many high schools: Cooperative Education Cooperative education programs work with students, school staff, and employers to help students clarify career and academic goals, and expand classroom study by participating in paid work experiences. Students work in trainee positions in fields of interest and may also earn academic credit. Independent Study Some academic programs allow independent studies as an optional program component.Students work one-on-one with individual teachers to develop projects for credit. Projects can range from research papers to work experience within their field of interest. Informational Interview Informational interviews help students gain personal insight into specific careers ask questions about occupations, Job duties, education requirements, qual ifications, and companies. Internship An internship is a time-limited, intensive learning experience outside the traditional classroom.Students work in a supervised learning situation, paid or non-paid, with an employer doing planned learning activities. Interns learn about occupational fields and specific Job tasks, while developing work-readiness. Job Shadowing Job shadowing provides students with a realistic view of one or more occupations. Students visit a business to observe the everyday functions of their occupational area of interest. Experiences may vary in time from one hour to a full day. Service Learning In service learning experiences students provide community service in non-paid, volunteer positions.These programs increase the relevancy of academic learning by giving students opportunities to apply knowledge and skills while making meaningful contributions. Students with service learning requirements should pursue opportunities related to their career interests. Provid ing Support Parents, family members, and mentors can help young people become self- determined and access career preparation resources. They can empower them and reinforce their plans for success. Here are some ways to provide support: Help students identify their vocational strengths and interests – look at hobbies, pastimes, etc.Educate yourself about adaptive technology, accommodations, and employment issues. Talk to students about self-advocacy, determining appropriate accommodations, and disclosing their disabilities. Encourage students to develop personal networks of family members, friends, and community contacts to open up pportunities for work-based learning. Parents and guardians should involve themselves in the Individual Education Plans (IEP) of their children and make sure employment-preparation activities are included.Learn about available adult services and start preparing students for the transition to independent adulthood. Assist students in accessing local support networks and disability services organizations, such as the Division of Vocational Rehabilitation, which may be able to provide career preparation, Job placement, and referrals to community programs. Encourage tudents to visit the counseling, advising, or career center at their high schools. They may provide a variety of career preparation and Job search services.Students can develop career plans and Job search skills through individual counseling and workshops. Investigate School-to-Work programs, such as Tech Prep and High School/ beginning early in high school. Some Tech Prep courses may be articulated with coursework at local community colleges. Contact your State Governor's Committee on Employment of with Disabilities for information about High School/High Tech, a artnership that combines site tours, Job shadowing, internships, and mentoring to encourage students with disabilities to pursue careers in the technology industry.

Doppler Effect

Doppler effect The Doppler effect, named after Christian Doppler, is the change in frequency and wavelength of a wave as perceived by an observer moving relative to the source of the waves. For waves that propagate in a wave medium, such as sound waves, the velocity of the observer and of the source are relative to the medium in which the waves are transmitted. The total Doppler effect may therefore result from motion of the source, motion of the observer, or motion of the medium. Each of these effects is analysed separately. For waves which do not require a medium, such as light or gravity in special relativity, only the relative difference in velocity between the observer and the source needs to be considered. [pic] [pic] A source of waves moving to the left. The frequency is higher on the left, and lower on the right. | | Doppler first proposed the effect in 1842 in the monograph Uber das farbige Licht der Doppelsterne und einige andere Gestirne des Himmels – Versuch einer das Bradleysche Theorem als integrierenden Teil in sich schliessender allgemeiner Theorie (On the coloured light of the binary refracted stars and other celestial bodies – Attempt of a more general theory including Bradley's theorem as an integral part). [1] The hypothesis was tested for sound waves by the Dutch scientist Christoph Hendrik Diederik Buys Ballot in 1845. He confirmed that the sound's pitch was higher as the sound source approached him, and lower as the sound source receded from him. Hippolyte Fizeau discovered independently the same phenomenon on electromagnetic waves in 1848 (in France, the effect is sometimes called â€Å"effet Doppler-Fizeau†). It is often overlooked that in Doppler's publications (and also Einstein's in his discussion of the Doppler effect) he explicitly acknowledges that his formulae are only approximate since he made several mathematical approximations in his derivation. Doppler's derivation is repeated more or less verbatim in most modern textbooks but often without the warning that the formulas are only valid in some (experimentally often seen) limits. In Britain, John Scott Russell made an experimental study of the Doppler effect. In 1848, Russell reported his study of the Doppler effect. (J. S. Russell, â€Å"On certain effects produced on sound by the rapid motion of the observer†, Brit. Assn. Rep. , vol. 18, p. 37 (1848). An English translation of Doppler's 1842 monograph can be found in the book by Alec Eden, â€Å"The search for Christian Doppler†, Springer-Verlag 1992. In this book, Eden felt doubtful regarding Doppler's conclusions on the colour of double stars, but he was convinced regarding Doppler's conclusions on sound. [pic] [pic] An illustration of the Doppler effect[2]. The relationship between observed frequency f' and emitted frequency f is given by: [pic] where pic]is the velocity of waves in the medium (in air at T degrees Celsius, this is 332(1 + T/273)1/2 m/s) [pic]is the velocity of the source (the object emitting the sound) Because we are using an inertial reference system, the velocity of an object moving towards the observer is considered as negative, so the detected frequency increases (This is because the source's velocity is in the denominator. ) Conversely, detected frequency decreases when the source moves away, and so the source's velocity is added when the motion is away. In the limit where the speed of the wave is much greater than the relative speed of the source and observer (this is often the case with electromagnetic waves, e. g. light), the relationship between observed frequency f? and emitted frequency f is given by: |Change in frequency |Observed frequency | |[pic] |[pic] | where [pic]is the transmitted frequency [pic]is the velocity of the transmitter relative to the receiver in meters per second: positive when moving towards one another, negative when moving away [pic]is the speed of wave (3? 08  m/s for electromagnetic waves travelling in air or a vacuum) [pic]is the wavelength of the transmitted wave subject to change. As mentioned previously, these two equations are only accurate to a first order approximation. However, they work reasonably well in the case considered by Doppler, i. e. when the speed between the source and receiver is slow relative to the speed of the waves involved and the distance between the source and receiver is l arge relative to the wavelength of the waves. If either of these two approximations are violated, the formulae are no longer accurate. Analysis It is important to realize that the frequency of the sounds that the source emits does not actually change. To understand what happens, consider the following analogy. Someone throws one ball every second in a man's direction. Assume that balls travel with constant velocity. If the thrower is stationary, the man will receive one ball every second. However, if the thrower is moving towards the man, he will receive balls more frequently because the balls will be less spaced out. The converse is true if the thrower is moving away from the man. So it is actually the wavelength which is affected; as a consequence, the perceived frequency is also affected. It may also be said that the velocity of the wave remains constant whereas wavelength changes; hence frequency also changes. If the moving source is emitting waves through a medium with an actual frequency f0, then an observer stationary relative to the medium detects waves with a frequency f given by [pic]which can be written as: [pic], here v is the speed of the waves in the medium and vs, r is the speed of the source with respect to the medium (positive if moving away from the observer, negative if moving towards the observer), radial to the observer. With a relatively slow moving source, vs, r is small in comparison to v and the equation approximates to [pic]. A similar analysis for a moving observer and a stationary source yields the observed frequency (the observer's velocity being represented as vo): [p ic], where the same convention applies  : vo is positive if the observer is moving way from the source, and negative if the observer is moving towards the source. These can be generalized into a single equation with both the source and receiver moving. However the limitations mentioned above still apply. When the more complicated exact equation is derived without using any approximations (just assuming that everything: source, receiver, and wave or signal are moving linearly) several interesting and perhaps surprising results are found. For example, as Lord Rayleigh noted in his classic book on sound, by properly moving it is possible to hear a symphony being played backwards. This is the so-called â€Å"time reversal effect† of the Doppler effect. Other interesting cases are that the Doppler effect is time dependent in general (thus we need to know not only the source and receivers' velocities, but also their positions at a given time) and also in some circumstances it is possible to receive two signals or waves from a source (or no signal at all). In addition there are more possibilities than just the receiver approaching the signal and the receiver receding from the signal. All these additional complications are for the classical—i. . , nonrelativistic Doppler effect. However, all these results also hold for the relativistic Doppler effect as well. The first attempt to extend Doppler's analysis to light waves was soon made by Fizeau. In fact, light waves do not require a medium to propagate and the correct understanding of the Doppler effect for light requires the use of the Special Theory of Relativity. See relativistic Doppler effect. Ap plications [pic] [pic] A stationary microphone records moving police sirens at different pitches depending on their relative direction. Everyday The siren on a passing emergency vehicle will start out higher than its stationary pitch, slide down as it passes, and continue lower than its stationary pitch as it recedes from the observer. Astronomer John Dobson explained the effect thus: â€Å"The reason the siren slides is because it doesn't hit you. † In other words, if the siren approached the observer directly, the pitch would remain constant (as vs, r is only the radial component) until the vehicle hit him, and then immediately jump to a new lower pitch. Because the vehicle passes by the observer, the radial velocity does not remain constant, but instead varies as a function of the angle between his line of sight and the siren's velocity: [pic] where vs is the velocity of the object (source of waves) with respect to the medium, and ? is the angle between the object's forward velocity and the line of sight from the object to the observer. Astronomy [pic] [pic] Redshift of spectral lines in the optical spectrum of a supercluster of distant galaxies (right), as compared to that of the Sun (left). The Doppler effect for electromagnetic waves such as light is of great use in astronomy and results in either a so-called redshift or blueshift. It has been used to measure the speed at which stars and galaxies are approaching or receding from us, that is, the radial velocity. This is used to detect if an apparently single star is, in reality, a close binary and even to measure the rotational speed of stars and galaxies. The use of the Doppler effect for light in astronomy depends on our knowledge that the spectra of stars are not continuous. They exhibit absorption lines at well defined frequencies that are correlated with the energies required to excite electrons in various elements from one level to another. The Doppler effect is recognizable in the fact that the absorption lines are not always at the frequencies that are obtained from the spectrum of a stationary light source. Since blue light has a higher frequency than red light, the spectral lines of an approaching astronomical light source exhibit a blueshift and those of a receding astronomical light source exhibit a redshift. Among the nearby stars, the largest radial velocities with respect to the Sun are +308 km/s (BD-15 °4041, also known as LHS 52, 81. 7 light-years away) and -260 km/s (Woolley 9722, also known as Wolf 1106 and LHS 64, 78. 2 light-years away). Positive radial velocity means the star is receding from the Sun, negative that it is approaching. Temperature measurement Another use of the Doppler effect, which is found mostly in astronomy, is the estimation of the temperature of a gas which is emitting a spectral line. Due to the thermal motion of the gas, each emitter can be slightly red or blue shifted, and the net effect is a broadening of the line. This line shape is called a Doppler profile and the width of the line is proportional to the square root of the temperature of the gas, allowing the Doppler-broadened line to be used to measure the temperature of the emitting gas. Radar Main article: Doppler radar The Doppler effect is also used in some forms of radar to measure the velocity of detected objects. A radar beam is fired at a moving target—a car, for example, as radar is often used by police to detect speeding motorists—as it approaches or recedes from the radar source. Each successive wave has to travel further to reach the car, before being reflected and re-detected near the source. As each wave has to move further, the gap between each wave increases, increasing the wavelength. In some situations, the radar beam is fired at the moving car as it approaches, in which case each successive wave travels a lesser distance, decreasing the wavelength. In either situation, calculations from the Doppler effect accurately determine the car's velocity. The proximity fuze which was developed during World War II also relies on Doppler radar. Medical imaging and blood flow measurement An echocardiogram can, within certain limits, produce accurate assessment of the direction of blood flow and the velocity of blood and cardiac tissue at any arbitrary point using the Doppler effect. One of the limitations is that the ultrasound beam should be as parallel to the blood flow as possible. Velocity measurements allow assessment of cardiac valve areas and function, any abnormal communications between the left and right side of the heart, any leaking of blood through the valves (valvular regurgitation), and calculation of the cardiac output. Contrast-enhanced ultrasound using gas-filled microbubble contrast media can be used to improve velocity or other flow-related medical measurements. Although â€Å"Doppler† has become synonymous with â€Å"velocity measurement† in medical imaging, in many cases it is not the frequency shift (Doppler shift) of the received signal that is measured, but the phase shift (when the received signal arrives). Velocity measurements of blood flow are also used in other fields of medical ultrasonography, such as obstetric ultrasonography and neurology. Velocity measurement of blood flow in arteries and veins based on Doppler effect is an effective tool for diagnosis of vascular problems like stenosis. [3] Flow measurement Instruments such as the laser Doppler velocimeter (LDV), and Acoustic Doppler Velocimeter (ADV) have been developed to measure velocities in a fluid flow. The LDV and ADV emit a light or acoustic beam, and measure the Doppler shift in wavelengths of reflections from particles moving with the flow. The actual flow is computed as a function of the water velocity and face. This technique allows non-intrusive flow measurements, at high precision and high frequency. Underwater acoustics In military applications the Doppler shift of a target is used to ascertain the speed of a submarine using both passive and active sonar systems. As a submarine passes by a passive sonobuoy, the stable frequencies undergo a Doppler shift, and the speed and range from the sonobuoy can be calculated. If the sonar system is mounted on a moving ship or an another submarine, then the relative velocity can be calculated.