Essay about Sat Prep Biology

Essay about Sat Prep Biology Essay about Sat Prep: Biology THE EARTH IS HOME TO MILLIONS OF DIF- ferent kinds of organisms, from slime molds to sheep, blue whales to naked mole rats. Yet the diversity of size and structure evident in all of these organisms emerges from one fundamental building block: the cell. A cell is a small, membrane-bound compartment capable of performing all the basic functions of life. Since all living organisms, from the simplest to the most complex, are composed of cells, understanding how cells work is integral to understanding larger life processes- not to mention that the cell and its structure are common topics tested by the SAT II Biology. Most cells are too small to be observed with the naked eye. For this reason, even the existence of cells escaped notice until scientists first learned to harness the magnifying power of lenses in the second half of the seventeenth century. At that time a Dutch clothing dealer named Antonie van Leeuwenhoek (1632–1723) fashioned extraordinarily accurate single-lens microscopes. Gazing into the lens of these microscopes, he discovered single-celled organisms, which he called â€Å"animalcules† and which, today, we call bacteria and protists. Englishman Robert Hooke (1635–1703) expanded on Leeuwenhoek’s observations with the newly developed compound microscope, which uses two or more aligned lenses to increase magnification while reducing blurring. When Hooke turned the microscope on a piece of cork, he noticed that the tiny, boxlike compartments of the wood resembled the cells of a monastery. The term â€Å"cell† was born. Cell Theory Emerges As microscope technology improved, scientists were able to study cells in ever-greater detail. Hooke had no way to tell if cells were living things, but later researchers who could see the nucleus and the swirling motion of the cytoplasm were convinced that cells were indeed alive. By 1839, enough evidence had accumulated for German biologists Matthias Schleiden and Theodore Schwann to proclaim that cells are â€Å"the elementary particles of organisms.† But many researchers still did not believe that cells arose from other cells until 1855, when famous German pathologist Rudolph Virchow pronounced, â€Å"All cells come from cells.† Nearly 200 years after the discovery of cells, the observations of Virchow, Schleiden, and Schwann established the cell theory: All living things are made of cells. All cells arise from preexisting cells. These two tenets made clear that the cell is the fundamental unit of life. Cell Size Cells could not be studied until the microscope was developed because they are very small. This fact raises two questions: why are cells so small, and why are living things made up of millions of tiny cells? Cells are small because their surface area and volume must be balanced. In order

Moral Dilemmas in Nursing Coursework Example | Topics and Well Written Essays - 250 words

Moral Dilemmas in Nursing - Coursework Example The dilemma assumes that the chooser will be guided by societal norms, codes, laws or religious teachings to make the choice ethically impossible. Ethical dilemmas are usually unpredictable, unforeseen and multidimensional which requires extraordinary measures. Medics usually face ethical dilemmas, for instance saving either a mother or unborn child in a delivery room.For nurses to be ethical, they must be just, autonomous, beneficent, veracious and have respect for other people's personalities and characters. Need, care and safety of the patients must always top the nurses’ priority list. The qualities of justice and fairness must be cultivated at all times and evil, or harm infliction must never cross a nurse’s mind. Health workers must always respect the patients’ decision since they have autonomy to make such decisions. However, many times, this becomes extremely difficult especially when a patient’s beliefs and values conflicts with the nurses’ , the latter has to be competent to solve the predicament. For instance, a patient may refuse to undergo a life-saving procedure or medication that the nurse sees necessary, a nurse withholding treatment on professional grounds may go against beneficence and disregard to a patient’s wishes. Violation of autonomy occurs in cases such as preventive suicide, maintenance of professional integrity and protection of third parties. Nurses at times violate patients’ privacy and confidentiality.

EXECUTIVE SUMMARY Essay Example | Topics and Well Written Essays - 1000 words

EXECUTIVE SUMMARY - Essay Example The overall purpose of the project is to provide the medical, psychological as well as emotional support to the teens and youngsters who may be using drugs. The overall rehabilitation as well as their revival is one of the key purposes of the organization however, the focus is also assisting these teens to develop leadership qualities. Team building as well as organizational skills is also taught to these teens in order to help them to live a life which is organized and based upon mutual help of each other. The organization therefore is a non-profit organization with focus upon ensuring that the teens and youth are provided a new opportunity to live a better and more constructive life at the individual as well as community level. Target Population Though apparently the overall target population of the teens facing drug related issues what is however important to note that parents and guardians of the teens are targeted too. Since rehabilitating the teens is a holistic approach theref ore healthcare service providers therefore not only target the patients themselves but the parents of these children also. This approach is taken in order to ensure that the parent play a better and more constructive role in the recovery and rehabilitation of their children. It is also important to understand that healthcare service provider professionals work on the basis of developing co-leaders and presenting leaders in every situation. This sort of approach therefore helps the organizations to actually better target their population and become more organized in ensuring their proper response to their target population. (Kerfoot, 2004) The Benefits of the Program Apparently, the overall benefit of the program is to produce healthy and constructive citizens who can be better individuals. However, on the whole, program intends to develop a community which is based upon mutual respect and help for each other. In order to accomplish this task, this program therefore is aimed at utili zing and developing the leadership skills of the healthcare service provides including nurses to manage different situations on their own. This therefore allows the healthcare service providers to become more independent in carrying out their responsibilities and become more accountable and responsible for what they treat and deal with at healthcare services providing facilities. The Cost & Budget Justifications The overall cost of rehabilitating the teens and the youth is more than $5 million dollars per annum. This cost includes both the cost of medicines and other support directly required by the individuals in the overall process of rehabilitating them. It also include the support cost such as admin and other running expenses required to accomplish the task of providing overall support to the patients. Such high cost has also been due to the fact that it is becoming difficult to actually hire and retain quality nurses. The overall focus therefore is to build effective teams and co-leaders who can shine in every situation. In order to accomplish this task, more is being spent on training and development of the nurses to improve their overall capability to handle difficult cases in limited time and budget. The Basis of Evaluation One of the basic

Why I want to be a nurse Essay Example | Topics and Well Written Essays - 500 words

Why I want to be a nurse - Essay Example Nurses were looked down upon but with the development of the human mind, it has been realized that it is a very noble profession where a person lives with a cause and purpose of serving other people. It is for this reason that I have actually been influenced by the fact that I should opt for this career and work towards improving the health status of the world by becoming an integral part of the healthcare system. I have always been interested in this field, particularly after my exposure to the hospitals when I came across nurses and realized the fact that how important they are for the field of medicine. My exposure to this field has made me aware of the fact that I would truly want to devote my life for the purpose of providing the best health for the patients. The example of Florence Nightingale serves as an inspiration to me. She was a woman who was devoted to her work despite of the difficulties that she had to face and the criticism that she received. She worked day and night to save precious human lives and worked in very difficult conditions. Seeing her example, I have realized that I would also want to dedicate my life to help people who will actually be able to live in a better way because of my work. The aim of this field is itself very inspiring to me.

Compare and Contrast piaget's and kohlberg theories of moral Essay

Compare and Contrast piaget's and kohlberg theories of moral develpment. Which seems more relevent to the study of adolesecnts why - Essay Example Both believed that moral education could be enhanced through formal education and through cooperative decision-making and problem solving situations at school. Piaget focused on the moral lives of children and believed that all development emerges form action. Morality results from social interaction. Piaget observed children of different ages while playing marbles and reached several conclusions. In another instance, he presented situations to children and asked them to suggest who should be punished. This test further confirmed that younger children looked at consequences while the older ones concentrated on the intent. According to Piaget, in the first stage, upto the age of five, children do not understand morals or rules but Kohlberg asserted that individuals at this stage focus on the direct consequences that their actions will have for themselves. They are guided by punishment or rewards and have their own interest at hand. Kohlberg explained in the second stage, children seek approval of others and they respond to the obligations of duty. Piaget believed that the second stage which lasts upto the age of nine is called moral realism. Here the children follow rules because they are there. The importance is on the wrong act itself and the consequences, and not on the intentions of the doer. Piaget’s theory of the moral relativity stage starts at the age of seven and overlaps with the moral realism stage (Everything2, 2002). The children develop their own internal rules depending upon convenience and not rely on external rules. They start evaluating actions based on intentions. Kohlberg’s contention was that most adults do not reach the last stage (Barger, 2000). Nevertheless, they do demonstrate genuine interest in the welfare of others. Those who experienced this stage did exhibit respect for universal principles and followed their own conscience also. Kohlberg was

Cultural immersion Essay Example | Topics and Well Written Essays - 1750 words

Cultural immersion - Essay Example The contrasts were deliberately sharp and well-defined: I was an international student mingling with American citizens; I was Muslim whereas I chose to attend a Baptist church; I was white whereas much of the congregation was black; and, I was an "outsider" in nearly each and every respect. From a cultural point of view, this was stretching the differences rather tightly. As an initial matter, I must admit that I was very nervous and a bit uncertain. As I was driving to the church, a million different things went through my mind. I was often hesitant and excited at the same time. I was hesitant because I felt quite awkward attending a religious service so different than my own. I have heard many things about Christianity and I have had many Christian friends; despite this superficial familiarity, I didn't know whether I would be welcome at the church. I wondered whether people might ask me personal questions, such as whether I had been baptized a Christian, and I wondered whether I ought to answer truthfully that I was a Muslim or whether I ought to simply lie and try to be accepted. More confusing was the fact that I didn't really understand the different nuances of the Christian religion. I knew that there were many different branches, such as Protestants, Catholics, Methodists, Episcopalians, and Baptists, but I didn't know how these different rel igious branches differed in terms of doctrine or behavior. More, these were black Baptists, and I wondered why blacks went to a different church than other Baptists. I wondered whether I would be the only Muslim or the only light-skinned person. Despite these fears, I imagined that the people would not be hostile. This is because I had telephoned in advance, and I was told that I would be more than welcome to attend. The church employee had given me directions and suggested that I attend the morning service rather than a workshop. In short, I approached the experience with a cautious optimism. The actual experience was both illuminating and a bit humbling. It was illuminating because I witnessed a true community of people, brought together by a common set of beliefs, and a people whom appeared extraordinarily conservative and possessed of pride and self-esteem. Three things, I think, struck me most about the people that I observed and met. First, everyone was well-groomed and the worship service seemed as much a fashion show as a religious event. Whether it was the young children or the older adults, everyone was dressed in fine clothes. Darker colors prevailed, though there were brighter accessories. There seemed to have been an unspoken dress code, and although I had dressed politely, I felt that my clothing was slightly out of place. This was something I had not anticipated; I had been worried about being a Muslim and a foreign citizen, but I hadn't even considered how to dress beyond being polite. I felt, as I entered the church, that my clothing identified me as an outsider. Second, everyone was quite friendly and everyone seemed to know everyone. I was struck by the hugs and the handshakes. People smiled and greeted their fellow worshipers with big smiles. Their interaction was both formal and informal at the same time; more particularly, they spoke very

Leadership approach Essay Example | Topics and Well Written Essays - 2500 words

Leadership approach - Essay Example the aforementioned students, the animal owners who seek the services of the veterinary college as well as the clinicians. The Problem: Given the considerable job descriptions of the staff, coupled with the lack of resources and the need to provide excellent services, the staff finds itself in the classic low morale conundrum; too much work and effort required for a job description that is become less enviable by the day. This, in short, can be categorized as the crux of the problem that I face under the leadership aspect of my role as the finance manager. ... The major weakness of this concept is ironically related to its major strengths in that the rather malleable nature of production does not allow the firm to establish a solid ground in any of the different businesses that it participates in i.e. its becomes somewhat of a jack of all trades and master of none. Due to this lack of immovability, the firm is not able to continue a specific production practice for a large period of time, hence, is unable to ascertain best production practices and any other cost cutting techniques, thus, it always produces at a level that has to be considered in optimal for the firm. (Yinghong, 2006) McDonald’s is a pertinent example of the correct use of moving competencies as they have been able to strike the perfect balance between the usability of moving competencies and defining their basic company objectives and areas of expertise. Therefore, despite the fact that McDonald’s is expanding both is scale of operations and in its product ra nge, it is still intrinsically a fast food joint which it has been able to maintain due to its best practices and strong adamancy on quality assurance. From this description, it can be easily surmised that the need of the hour for the manager is to implement the system of moving competencies in a way that would oversee the creation of synergies and the institution of best practices in the form that ‘every job is done by that specific person who does it best’. Therefore, the creation of conjoined skills development becomes a necessity and the onus lies on the finance manager to institute the change that is needed for the creation of an open learning and