CALCULUS 3 (LAGRANGE MULTIPLIERS) Essay Example | Topics and Well Written Essays - 500 words

CALCULUS 3 (LAGRANGE MULTIPLIERS) - Essay Example It is possible to find the minima or maxima of a given function f of several variables given that the variables have restrictions. Langrage multipliers help us minimize or maximize functions with constraints that are points on a definite surface (Stewart, 67). Finding critical points of a function f (w, x, y) on a level surface or subject to the constraint g (w, x, y) = M. Solving this problem requires a solving the following series of simultaneous equations. ÃŽ » is a dummy variable known as a langrage multiplier. The most important variable in the equation are w, x, and y. After solving for the critical values, you insert them into the function to find the maxima and the minima. The critical points where the function is greatest are maxima while where it is smallest are minima (Stewart, 72). Solving the system equations can be a difficult task. In order to solve for the critical points in an easier way, one should consider the following tricks; Solve for ÃŽ » in terms of the variables w, x, and y to eliminate it from the equations. Solve any of the variables in terms of the other variables. Consider both the positive and negative square roots whenever using a square root (Courant,

Psychological Disorders and Therapy Essay Example | Topics and Well Written Essays - 1250 words

Psychological Disorders and Therapy - Essay Example PTSD symptoms can be clustered into intrusive symptoms – flashbacks reliving traumatic experiences, avoidant symptoms – withdrawal from possible triggers (place, event, people) of traumatic experiences, and hyperarousal – the feeling of being threatened always occurring as insomnia, irritability, extreme startle response. Nevertheless, PTSD is curable. Effective treatment to PTSD is a combination of psychoanalysis – a therapy that deals with the patient’s unconscious and repressed memories, and drug therapy. SSRIs are the first line of medication approved by the US FDA as it was proven effective to decrease anxiety, depression, and panic reducing aggression, impulsivity, and suicidal thoughts in patients. a. Features: PTSD is a complex disorder, classified as anxiety disorder (Post-traumatic Stress Disorder par.1) or emotional disorder (Dryden-Edwards 1). DSM-IV-TR described it a â€Å"normal reaction to abnormal events† (qtd. in Post-traumatic Stress Disorder par.1), wherein terribly threatening experiences like rape, military combat, torture, genocide, extreme disasters, etc. have disrupted the patient’s memory, emotional reactions, mental processes, and nervous system (PTSD par.1-2; Dryden-Edwards 1), making PTSD a unique psychiatric disorder, since its diagnosis depends on factor/s outside the victim – a deviance from psychiatry’s general emphasis on factors internal to individuals (PTSD par.2). b. Symptoms: DSM-IV-TR identified six criteria symptomatic of PTSD: (1) Traumatic stressor – patient’s exposure to life-threatening horrifying experiences; (2) Intrusive symptoms – flashbacks reliving traumatic experiences; (3) Avoidant symptoms – withdrawal from possible triggers (place, event, people) of traumatic experiences; (4) Hyperarousal – a threatened feeling always occurring as insomnia, irritability, extreme startle response; (5) Symptom duration – one month

Lingustics, Education, Psychology Essay Example | Topics and Well Written Essays - 2750 words

Lingustics, Education, Psychology - Essay Example In fact, it can be said that child starts learning right from the womb where they have been acutely active listeners where they learned to recognize the speech patterns, tunes and tones of the languages especially of the mother and other people in the home (The National Literacy Trust, 2007). Though most children begin to vocalize and gradually verbalize at different ages and at different rates, the first language acquisition generally happens without much conscious instruction from parents or caretakers. The complexity and difficulty increases with increase in age (Wikipedia, 2007). In education and psychology, learning theories aid in understanding the process of learning which is also applicable to language development. There are basically three main perspectives in learning theories, constructivism, cognitivism and behaviorism. Constructivism views learning as a process in which the learner actively constructs or builds new ideas or concepts based upon current and past knowledge. In other words, "learning involves constructing one's own knowledge from one's own experiences". Constructivist learning, is, therefore, a very personal effort, whereby internalized concepts, rules, and general principles may reasonably be applied in a practical real-world context. Behaviourism is another educational theory based on the works of B. F. Skinner and Ivan Pavlov. According to the behaviorists believe, organisms need reinforcements to keep them interested and that the use of stimuli can be very effective in controlling behavior.

A woman who changed the world Essay Example | Topics and Well Written Essays - 500 words

A woman who changed the world - Essay Example She did so many things to change the world with the most renown being a very passionate advocate of planting trees. She was concerned about the rapid increase in deforestation and the adverse effects it was having on the environment and she made it her work to campaign for planting trees. The other thing is that she gave hope and encouragement to the women pursuing higher education. She did this through attainment of her PhD as well as the numerous other education paths she took in the men infested domains without fear or failure. She also encouraged women worldwide to be achievers hence the starting of the Nobel Women’s initiative worldwide (Maathai 127). Her life though cut short in 2011 has taught me that women should not let anything bring them down or deter them from changing the world. She did not let the political challenges in her country or her poor backgrounds bring her down. She also did not let the fact that she was a female and a mother prevents her from succeeding in every endeavor she chose. I also learnt that women in powerful position should use it to assist the other women. Lastly, I learnt from her than anything is possible with hard work and determination no matter the race, gender or nationality. Wangari Mathaai was indeed a feminist. Even though her feminism was not so pronounced later on in her career, she was one at heart and openly for that matter. While she was a lecturer in the University of Nairobi, she openly advocated for the equal rights of women in leadership and education (Maathai 186). She did this without any fear. She also advocated for women to be granted equal rights in politics and well as in environmental sector when she joined politics and this saw many women follow in her footsteps and achieve greatly as a result of her feminism. Class readings talk about feminists who are not only involved in lobbying work but whose

Defining theme of The Crying of Lot 49 by Thomas Pynchon Essay

Defining theme of The Crying of Lot 49 by Thomas Pynchon - Essay Example Thomas Pynchon gives the message that nature constantly moves life from order to disorder. It is worth noting, at this level, that Pynchon publishes the book following his full knowledge of history, pop culture, and paranoia whose identity cannot be easily recognized or combined. Entropy creates a patterned system that is tight and whose progression is unavoidable. The pattern also appears chaotic in nature. Pynchon’s theme of entropy focuses on America’s movement of culture to modernism. This movement seems unstoppable because culture is not static and is representative of trends in societies other than America. Analysis Pynchon centers on entropy from the start of the novel. His introduction to the learner contains this information. Pynchon shows his dissatisfaction in the introduction by explaining that his works seem to be out of various abuses on paper. The abuse to him is overwriting. Analysis of this assertion leads to the conclusion that Thomas Pynchon deliberat ely the dislike as a stylistic device. He claims in his personal critique that writers, in most cases, develop themes for characters. In his effort to introduce entropy, Pynchon avers that characters should generate themes in the novels through their personalities. He arranges his work to flow in a way that gives rise to entropy as the main idea put across. ... Oedipa does this continuously while refining them. This is a comparison to Pynchon’s assertion that characters in novels should generate themes and the other way round (Pynchon, 1965, 51). Just as Oedipa attempts to refine the stories after testing them, the author changes literary renditions in the best way. Furthermore, Oedipa creates a mystery to the reader by finding substantial leeways through coincidence but under very odd circumstances. The mystery involves either comprehending whether life is very amorphous that actions only occur through coincidence and affect people’s live greatly or if it is so void that characters such as Oedipa begin to imagine what they can do because of availability of unlimited information. Oedipa’s quest brings out the theme of entropy. The author combines ideas from other disciplines of studies such as physics and sociology to invoke the concepts of entropy. In addition to the two disciplines, he uses philosophical phenomena to underscore the main concept. The author creates a closed world that is an equivalent of physics’ closed system where particles move in a disorderly way. People and information in Pynchon’s world move in the same way towards entropy. In the continuation of his metaphor, Oedipa moves to correct the disorder from the ugly situations in the closed system. Considering the fact that she develops a closed world, it is difficult to understand whether Oedipa will succeed in her efforts or it is a process in futility. If she succeeds, then she will put truths in a world full of controversies. However, if she fails, she will have faced the normal actions of the world where it

Archaeology Topic Assignment Example | Topics and Well Written Essays - 250 words

Archaeology Topic - Assignment Example Developing material culture and brand concepts of culture that are inseparable from the communities is essential. Culture heritage belongs to people, therefore ensuring cultural heritage is a necessity at all cost (Fiol 191). Heritage duration is important to the local people. Duration is long-term preservation of heritage assets and provision of their access in different forms. The fragile heritage assets need to be preserved in an environment that protects them. Large museums offer such conservators for the fragile assets. Museums give culture heritage long life through preserving artifacts or through recreating a historical place that can be experienced by people. There are different forms of protecting buildings and structures that hold cultural heritage. Heritage management for buildings requires continued use of the building. Intangible cultural heritage also needs to be managed through being re-interpreted by people of the specific cultural regions. Management of intangible cultural heritage is not easy but it is still manageable. Cultural resources are all very important and they need constant maintenance (Fiol

Case study-outbreak of MRSA Essay Example for Free

Case study-outbreak of MRSA Essay 4P: explain possible priorities and responses when dealing with two particular incidents or emergencies in a health and social care setting. 3M: explain why it is important to maintain respect and dignity when responding to incidents and emergencies. 2D: Justify the need to review policies and procedures following critical incidents. Neonatal: Neonatal means new-born it’s a specialised unit for premature babies who have not fully developed yet because they are born way too early. The article is a case study based on a neonatal unit in a hospital in Lancashire. The neonatal unit have been shut down due to an MRSA outbreak which affected six babies from which five only had only bacteria on the surface of the skin whereas one baby had an MRSA bloodstream infection. I will investigate how they dealt with the situation with regards to priorities and responses and also well maintain respect and dignity of those included. It is an critical incident because as it affected the six babies there are more people who have been affected because they were either workers, visitors or patients as all of them are on risk off carrying the bacteria all of them have to come back in to get screened and checked. The neonatal unit was shut down and they spoke to parents of the babies to keep them up to date the hospital will not accept any new babies or patients onto the unit who are supposed to give birth or are in labour until doctors and nurses are 100% satisfied that there is no risk and the unit is clear of MRSA. They dealt with it very well as the health of the babies and the patients was their priority however they could have dealt with it a bit faster and warn people earlier because the impact they had on staff was that they think that it’s their fault of carrying poor hygiene and there are chances of losing their job. As mothers were already very depressed because their babies were premature they felt worse and more stressed when they got to know about the risk of having MRSA. Microbiology laboratories across the UK were asked to be vigilant and have been requested to send any suspicious samples of PVL for further analysis. It is very important to maintain respect and dignity when dealing with the incident as it is a neonatal unit patients and staff already know that it’s a specialised unit and therefore special and extra care is needed so that means everybody has to be ready for whatever comes up. It is also necessary to have policies and procedures because then it makes easier and quicker to do things right at the first time and there is less frustration and stress helping the staff by doing everything peacefully and accurate. MRSA: The full name for MRSA is methicillin-resistant Staphylococcus aurous. This bacterium is resistant to medicines called methicillin-type antibiotics, which means that it isnt killed by these antibiotics and can be very difficult to treat. Its sometimes called a superbug. It is normal for healthy people to have staph on their skin. Many of us do. Most of the time, it does not cause an infection or any symptoms. This is called â€Å"colonization† or â€Å"being colonized.† Someone who is colonized with MRSA can spread MRSA to other people. A sign of a staph skin infection is a red, swollen, and painful area on the skin. Pus or other fluids may drain from this area. It may look like a boil. These symptoms are more likely to occur if the skin has been cut or rubbed because this gives the MRSA germ a way to â€Å"get in.† Symptoms are also more likely in areas where there is more body hair due to hair follicles. MRSA infections in patients in health care facilities tend to be severe. These staph infections may be in the bloodstream, heart, lungs, or other organs, urine, or in the area of a recent surgery. Some symptoms of these severe infections are: Chest pain Cough or shortness of breath, Fatigue, Fever and chills, General ill feeling, Headache, Rash and Wounds that do not heal.