Key African American Women in Sports

Economics Test 1 Answers - 1997 Words

------------------------------------------------- Review Assessment: Chapter 1 Quiz (Due January 29, 2012) Status | Completed | Score | 75 out of 100 points | Instructions | | | Question 1 | 0 out of 2 points | | The following multiple-choice question requires critical thinking about In the News and World View articles that appeared in the text. One World View article is titled Food Shortages Plague N. Korea. On a production-possibilities curve between private and public goods, a decrease in military spending in an effort to increase food production could be represented as: | | | | | | Feedback: | The movement represents resources being pulled from one industry and allocated into the other industry.†¦show more content†¦| | | | | Question 22 | 2 out of 2 points | | If Korea is currently producing at efficiency, and it proceeds to increase the size of its military, then, as long as nothing else changes, its: | | | | | | Feedback: | There is a tradeoff; to get more of one good, other goods must be given up. | | | | | Question 23 | 2 out of 2 points | | When an economy is producing efficiently it is: | | | | | | Feedback: | This would be represented by being on the production-possibilities curve. | | | | | Question 24 | 0 out of 2 points | | Which of the following is true when an economy is producing efficiently? | | | | | | Feedback: | Being inside the production-possibilities curve is inefficient and being on it is efficient. | | | | | Question 25 | 1 out of 1 points | | If an economy is producing inside the production-possibilities curve, then: | | | | | | Feedback: | No goods must be given up to move from an inefficient to an efficient level of production. | | | | | Question 26 | 2 out of 2 points | | A technological advance would best be represented by: | | | | | | Feedback: | The shift would move the production-possibilities curve away from the origin, so that we can get more of both goods. | | | | | Question 27 | 2 out of 2 pointsShow MoreRelatedEssay about Marginal Cost and Correct Answer1404 Words   |  6 PagesQuestion 1 5 out of 5 points Economic profit is defined as the difference between revenue and ____. 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The number of children diagnosed with Obsessive Compulsive Disorder Free Essays

INTRODUCTION Daily, the number of children diagnosed with Obsessive Compulsive Disorder (OCD) is on the increase. OCD has been shown to affect at least 2% of young people (OCF 2009). As defined by the NHS clinical guide 2005, â€Å"obsessive compulsive disorder (OCD) is characterized by the presence of either obsessions or compulsions and most commonly both† The NHS further describe an obsession as any thoughts, imagery or urge which is unwanted and intrusive, repeatedly bogging someone’s mind. We will write a custom essay sample on The number of children diagnosed with Obsessive Compulsive Disorder or any similar topic only for you Order Now Also compulsion, are behaviors or mental activities repetitive in nature which a person feels need or is driven to perform. These definitions embody the reality encompassing people suffering with OCD. The symptoms which cause significant functional impairment and distress coupled with the fact that it can either be overt and observable by others (for example, checking that a door is locked repeatedly) or covert mental act like repeating a particular phrase in ones mind tend to affect sufferers, physically, psychologically, socially and academically as would be expounded in this study. Obsessions or compulsions can negatively impact on the lives of young people within their family environment, school and with friends. Nearly all children have little worries or fears as a normal part of growing up (Pridmore, 2010). This then makes OCD in children difficult to diagnose thus removing early identification and treatment in effect leading to a more developed situation in adult hood. Resear ch into the early diagnosis forms the crux of this study. AIMS AND OBJECTIVES RESEARCH AIMS This research is aimed at scaling more light on ways of early detection of OCD in children with a view to early diagnosis and early treatment by way of research to investigate the relationship between OCD in children, adolescents and adult, thus ensuring translating the cognitive processing of threat across age groups, magnitude of symptom and how this is usually shown by sufferers with age. Furthermore it also aims to add knowledge to what is currently known about the import of age on OCD and the best approach in detecting and treating OCD early in life. OBJECTIVES Interpret how OCD symptoms begin and are displayed across age groups. Assess level of symptom in sufferers across different age groups. Analyze critically the best practice for early detection and best approach to treatment. Make recommendation based on research finding into OCD across varied age groups. RESEARCH QUESTIONS Important to this research are the following questions, which make up the body of the research: How are the symptoms of OCD exhibited in children What role does age play in the repression or otherwise of OCD in children How does comparism of OCD symptoms across age groups affect current knowledge of OCD in Children What conditions affect the repression of OCD symptoms across the test age groups Can the success of repression across any of the age groups be used as tool to treat OCD in children These questions would form the building blocks of the research, as the findings would formulate points of discussion. LITERATURE REVIEW UNDERSTANDING OCD Previously, OCD was thought to be a rare psychiatric illness (Paige, 2007), however, research into the causes and symptoms into the condition, points out that the condition or disorder clearly characterized by cycles of obsessions and ‘rituals’ or compulsions causing extreme malfunction, fear and distress to its sufferers. It is proposed and more likely that in the near distant future, OCD would be grouped in a field of disorders with various treatments. The proposed OC spectrum disorders might include OCD, body dysmorphic disorder (Bjornsson et al, 2010), hoarding (Pertusa et al, 2010), pathological gambling (Black et al, 2010), certain eating disorders, and autism. The current position of OCD differs in the two major diagnostic systems. OCD is perceived as an anxiety disorder In the DSM-IV, while ICD-10 lists it as an entity, which is separate from the anxiety, disorders. As stated above, proposals for the removal of OCD from the anxiety disorders and placed in an independent grouping of â€Å"OC spectrum disorders† is currently under discussion (Bartz Hollander, 2006). OCD is yet to be fully understood thus various theories flourish which link it to different conditions such as a connection to disgust which is a basic human emotion, which may have an evolutionary function that encourages the avoidance of contamination and disease. Husted et al, (2006), explained that functional imaging indicates that the neurocircuitry of OCD and disgust are similar conceiving OCD as a malfunction in an appraisal process. This would fit with OCD in which there are contamination concerns. However, this ideology does not tally with another theory that observes indecision as a feature of OCD and proposes the disorder is a result of disturbed decision-making strategies, which has been discussed by (Sachdev, et al, 2005). In another instance, functional imaging supports the theory that decision making involves the dorsolateral, orbitofrontal and anterior cingulate cortices (CHANGE THE WORDS) which interact with limbic structures to retain memory of emotional rewards, an d the basal ganglia which is involved in behavioral execution, the same structures that appear to be involved in OCD. These are shrouded with other theories that include â€Å"not just right experiences† (Coles et al, 2010), inability to terminate improbable but grave danger concerns (Woody and Szechtman, 2010) and â€Å"an inflated sense of responsibility† (Smari et al, 2010) OCD involves obsession that are involuntary, leading up to thoughts that are unwanted and recurring result in feelings of anxiety and many at times dread hence they are not simply cases of meticulousness or over worry. There tend to be much worse, they make the sufferer seem irrational, interfere with normal thinking and are time consuming in some cases taking up to two hours per day (Fruehling J, 1999). They compel sufferers to make repeated attempts to try and control arising obsessive thoughts all to no avail. The ‘rituals’ performed by sufferers tend to bring temporary relief from the anxiety brought about by the thoughts as there exist a clear the relationship between most obsessions and the compulsions that follow. for example, contamination and washing. Sometimes the opposite is the case as not clear relationship can be attributed to (WHAT)for example, counting behaviors in a bid to prevent harm to others (Paige, 2007). The symptoms of OCD have been shown to grow stronger over time in cases where certain performed compulsions appear less effective in bringing relief. More elaborate measures could be taken to provide a sense of relief effectively ensuring that these become time consuming and thus interfering with everyday functioning. There have been cases of delayed indulgence so as not to appear abnormal socially, but this is nearly very difficult and the urge to perform the rituals always tends to grow. For example, students who tend to and are able to delay their compulsions while in class often tend to go to private places later on to perform set rituals during school hours. The concept of delusion cannot be attributed to sufferers of OCD, more adult sufferers often tend to recognize that such thoughts and behaviors that follow are unreasonable, however, that lack the will or ability to control them. In the face of illness or stress, OCD symptoms worsen. The causes of OCD border around three major areas, psychological, biological and the roles of neurotransmitters. Biologically – Studies have linked patients with childhood onset OCD to first-degree relatives, than among patients with later onsets to first-degree relatives (Starcevic, 2005). However, statistical inconsistencies have been shown to exist among twins demonstrating a higher concordance among dizygotic pairs. Upon statistical analysis further more, Grootheest et al, 2005 explained that if a dimensional approach is employed, studies amongst twins suggest heritability of obsessive compulsive symptoms. Early onset of OCD is traceable to strong genetical contributions however, this is not definitive (Pridmore, 2010). Role of Transmitters – In another study, neurological images implicate disturbances in pathways between the cerebral cortex and thalamus as pathogenesis of obsessions while pathogenesis of compulsion along with repetitive motor acts results from abnormalities in the striatum (Insel, 1992). When comparing sufferers of OCD and other anxiety disorders, Ruda et al, (2010) observed common and distinct neural substrates as both showed a decreased level of bilateral grey matter volume in the brain. OCD like disorders caused by childhood streptococcal infections has been termed Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcal infections. It has been observed that a large percentage of children who have suffered this complication of rheumatic fever have antibodies directed against the caudate (Swedo et al, 1994). Psychologically – OCD are shown by the symptoms explained upon earlier in this study. OCD UK STATISTICS Torres et al reported in 2006 that the survey of British National Psychiatric Morbidity revealed the prevalence within the general population of OCD was 1.1%. The same statistics also showed that the percentage decreased with increasing age (1.4% within 16-26years and 0.2% within 65-74 years). These statistics also revealed that the condition was slightly higher in females than males. Amongst sufferers of the condition, it has been identified that 55% suffer from only obsessions while 11% have only compulsions with 34% having both obsessions and compulsions (Pridmore, 2010). Further statistics show that 62% patients suffer from mental disorder in particular depression and anxiety, with 20% having alcohol dependence, 13% on drug dependence and 25% with a history of attempted suicide. The above statistics points to the prevalence of OCD in children who very often are ignorant of the existence of the condition and or where conscious are often very afraid to inform parents. In a 9 year s urvey where 142 adolescents and children where followed, Heyman et al, 2010 revealed that 41% of this population had persistent OCD, a very considerable number of those without the condition showed signs of other psychiatric conditions. This reveals that OCD is a chronic disorder amongst the younger generation with a guided prognosis. CHILDREN LIVING WITH OCD Childhood onset of OCD may result in children demonstrating washing; checking rituals, and preoccupation with disease, danger, and doubts inter alia (Swedo et al 1989), with an approximate 2%–3% of people (including adolescents) having OCD. Notwithstanding this may be an underestimate because many symptoms are kept secret, OCD can emerge as early as preschool. During puberty and early adulthood, the number of children who develop the disorder peaks (National Institutes of Mental Health, Pediatric Obsessive- Compulsive Disorder Research, 2006). Studies by Paige, 2007 show that one-third of adults have OCD developed from childhood. As stated earlier, children and adolescents often tend to hide the symptoms of OCD for fear of being tagged ‘crazy or weird’ this often takes its toll on the severity of the condition in sufferers later on in life. The stigma often associated with OCD come to the full understanding of most adolescents who go through extreme lengths to av oid showing the symptoms. These steps could see them seek ways to avoid situations, which tend to trigger symptoms or young sufferers become clever in devising explanations for their behaviors. Snider et al, 2000 preach that compulsive behavior begins very often gradually and the trend is inadvertently supported by unsuspecting parents at the outset, for example, in cases where children and adolescents show rituals or compulsions that tend to be developmentally appropriate such as wearing a lucky shirt to a game or lining up stuffed animals in a particular way or show healthy behavior such as appear healthy washing of hands after bathroom use, parents may not initially be concerned by such OCD symptoms thus resulting in not seeking medical treatment at the outset until behaviors have become disruptive. Study by Zohar (1999) reveal that following childhood onset, OCD has a complete remission rate of 10 to 50 percent by late adolescence and without treatment tends to become chronic af fecting normal function adversely. Considerable effects on adolescents include decreased performance qualities, impaired relationships, depression, problems associated with poor academic performance and so on (Paige, 2004). Expounding further on the effect of OCD on child or adolescent school performance, OCD often at times has a considerable and significant effect on child or adolescent learning; this tends to worsen if left untreated at the earlier stages. Academic problems associated with OCD in children or adolescent include poor attendance often similar to school avoidance, perceived weird behavior as young sufferers tend to avoid situations and places that increase obsessive thoughts as they may spend more time in secret places where rituals or compulsions are performed, this often results in increased social isolation and missed learning. Other problems may include loss of concentration, which is similar to symptoms associated with Attention Deficit Disorder (ADD) as a direct result of obsessive. The consequences of such behaviors often result in victimization or bullying of students suffering from OCD while obsessive thoughts create social problems. COMPARISON OF CHILDREN AND ADULTS LIVING WITH OCD In a study to unearth the developmental differences in the cognitive processing of threat across children, adolescent and adult groups of individual sufferers of OCD by Farrell et al in 2006, some evidence showed that age accounted for differences in the cognitive processing of threat associated with OCD. As this study was the first to examine this relationship, it demonstrated that children suffering from OCD experienced lower anxious and intrusive thoughts in direct comparism to both adolescents and adults. Children experienced lower levels of sadness, worry, disapproval and removal strategies associated with OCD as determined by Farrell et al, (2006) when compared to adolescents and adults. The research also pointed that the intrusive and depressive thoughts experienced by children with OCD was less distressing and less difficult to resist in comparison to the other two groups. These finding where consistent with reports by Salkovskis (1985, 1989) and others (Freeston et al., 1996 ; Rachman, 1993). Similar results were obtained when responsibility was the factor being tested for. The results showed that children report significantly less responsibility on a self-report responsibility attitude measurement in comparison to the other two groups. This suggested effectively that by adolescent, sufferers ten to have increased attitudes regarding personal blame for harm as is also in the case of adults suffering with OCD. RESEARCH METHODOLOGY CONCLUSION AND RECOMMENDATION The cognitive theory of OCD has in the past been heralded as the most widely accepted account of maintenance of the disorder in adults however; it remained to be seen if evaluation across children, adolescent and adult comparison portends any trend. To this end, research was undertaken to investigate developmental differences in symptoms displayed by OCD sufferers across the age range, the results obtained demonstrated that symptoms evinced increased across the grouping (children – adolescent – adult). This therefore suggests adoption of strategies for treatment of the condition. Importance is placed of the early discovery of the condition in an individual so as to ensure that whatever treatment is required is provided to stem increased conditions as the individual matures. Furthermore, in managing and ensuring recovery from OCD, early identification and requisite treatment remain imperative. Various strategies to manage and control the condition amongst children within the school environment and at home have to be employed. At schools, staff should be alert as to the symptoms of the disorder in any pupil and to achieve this there is need for adequate enlightenment of staff about the disorder. Advice should the sought from the school counselor as unexplained agitation in pupil, prolonged and or frequent absence from class etc could be pointers to the condition in a pupil. Also, indirect observation such as raw or bleeding hands could give required clues. Stigmatization should also be eliminated. Conclusively, parental involvement remains utmost in the management and recovery process. Some parents may require education on how to identify and support children suffering with OCD. More research is required to fully grasp the role of responsibility, life experiences and exposures on the display and repression of OCD symptoms. This research study however, recommends a more details research into the symptoms showed by sufferers across different age groups and the roles which various factors would play. REFERENCES Bartz J., and Hollander E., (2006) ‘Is obsessive-compulsive disorder an anxiety disorder?’ Progress in Neuropsychopharmacology and Biological Psychiatry, vol. 30. pp. 338-352. Bjornsson A, Didie E, Phillips K., (2010) ‘Body dysmorphic disorder’ Dialogues in Clinical Neuroscience, vol. 12, pp. 221-232. Coles M., Heimberg R., Frost R., and Steketee G., (2005) ‘Not just right experiences and obsessive compulsive features: experimental and self-monitoring perspectives’ Behavior Research and Therapy, vol. 43, pp. 153-167. Freeston, M. H., Rheaume, J., Ladouceur, R. (1996) ‘Correcting faulty appraisals of obsessional thoughts’ Behaviour, Research and Therapy, vol. 34, pp. 433–446. Insel T., (1995) ‘Toward a neuroanatomy of obsessive-compulsive disorder’ Archives of General Psychiatry, vol. 49, pp. 739-744. National Institutes of Mental Health, Pediatric Obsessive-Compulsive Disorder Research. (2006) FAQs about OCD. Retreived May 31, 2007, from http://intramural.nimh.nih.gov/pocd/ pocd-faqs.htm#FAQ-1 National Health Scheme NHS (2005) ‘Obsessive-compulsive disorder Obsessive-compulsive disorder: core interventions in the treatment of obsessive-compulsive disorder and body dysmorphic disorder’ National Institute for health and clinical excellence. www.nice.org.uk. Obsessive Compulsive Foundation (OCF) (1999) ‘OCD in Children’ Obsessive-Compulsive Foundation. (2006) ‘What is OCD?’ Retreived June 1, 2007, from www.ocfoundation.org/what-is-ocd.html Paige L. Z., (2004) ‘Obsessive-compulsive disorder: Information for parents and educators’ In Canter, A. S., Paige, L. Z., Roth, M. D., Romero, I., Carroll, S. A. (Eds.), Helping children at home and school II: Handouts for families and educators. Bethesda, MD: National Association of School Psychologists. Pertusa A, Frost R, Mataix-Cols D., (2010) ‘When hoarding is a symptom of OCD: a case series and implications for DSM-V. Behavioral Research and Therapy 2010; in press. Pridmore S., (2010) ‘OCD – download of Psyciatry’ Chapter 13 Rachman S., (1993) ‘Obsessions, responsibility, and guilt. Behaviour Research and Therapy, vol. 31, pp. 149–154. Radua J., van den Heuvel O., Surguladaze S., and Mataix-Cols D., (2010) ‘Meta-analytical; comparison of voxel-based morphometry studies in obsessive-compulsive disorder vs other anxiety disorders’ Archives of General Psychiatry, vol. 67, pp. 701-711. Smari J, (2010) ‘Pathways to inflated responsibility beliefs, responsibility attitudes and obsessive-compulsive symptoms: factor structure and test of mediational model’ Behavioral and Cognitive Psychotherapy, vol 38, pp. 535-544. Snider L. A., and Swedo S. E., (2000) ‘Pediatric obsessive-compulsive disorder. The Journal of the American Medical Association, vol. 284, pp. 3104–3106. Starcevic V., (2005) ‘Anxiety Disorders in Adults’ Oxford University Press: Oxford. 2005. Swedo S. E., Rapoport J. L., Leonard H. L., Lenane M., and Cheslow D., (1989) ‘Obsessivecompulsive disorder in children and adolescents: Clinical phenomenology of 70 consecutive cases. Archives of General Psychiatry, vol. 46, pp. 335–341. Salkovskis P. M., (1985) ‘Obsessional compulsive problems: A cognitive-behavioural analysis’ Behaviour Research and Therapy, vol. 23, pp. 571–583. Salkovskis, P. M. (1989) ‘Cognitive behavioural factors and the persistence of intrusive thoughts in obsessional problems’ Behaviour Research and Therapy, vol. 27, pp. 677–682. Zohar A. H., (1999) ‘The epidemiology of obsessive-compulsive disorder in children and adolescents’ Child and Adolescent Psychiatry, vol. 8, pp. 445–460. How to cite The number of children diagnosed with Obsessive Compulsive Disorder, Essay examples

Existential Counseling Bachelor of Counselling

Question: Discuss about theExistential Counseling for Bachelor of Counselling. Answer: In broad definition, it can genuinely be asserted that the use of existential therapy in the case study in question effectively encouraged the client in question to develop a full understanding of the meaning of personal life as well as the existence of the universe. It was quite apparent that the concerned counselor in the case study effectively developing personal counselling style that was primarily based on one of the theoretical perspectives. This research paper is based on a video counseling session in which a counselor interacted with a client through both verbal and non-verbal expressions. According to the code of ethics of American Counselling Association (ACA), it is clearly stated that counselors ought to promote the personal growth as well as development of their clients through not only helping them in the development of interpersonal relationships that are healthy, but also through ensuring that they effectively honors the diverse cultural values of their clients (VanDeurzen-Smith, 2010). In this specific case study, it can truly be asserted that existential therapy was the most preferable base for theoretical counselling because it fitted well with the personal style of the counselor that comprised of the 12 step philosophy. In addition to that, the approach (Existential theory) was the most appropriate in the case study in question because it helped in the promotion of a counselling relationship collaborative therapeutic process. For instance, the counselor asked the client numerous questions in order to get more information about the client. It also helps in p romoting the personal development and growth of the client through helping to resolve ultimate struggles in ascertaining the personal purpose or meaning of life through positive interaction of the counselor and client. One of the major strengths that is associated with the use of existential theory is that presents the counselor in the case study with a set of construct and principles that serve as a guide towards the foundation or establishment of the entire counselling practice. To effectively overcome the feelings of any inferiority that the client may have in the case study, it will be prudent for the client and the counselor in the case study to create an effective interpersonal relationship (Cooper, 2003). The counselor inquired from client regarding personal and work life. The application of extential approach should be based or founded on four major existentialism themes which are freedom, meaningless, isolation, and freedom which every person should confront in the guest of answering the ultimate meaning regarding human existence. There is a strong belief that failure of resolving such ultimate conflicts or ultimate questions will ultimately lead to the creation of existential vacuums that result in existential anxiety that is known to be the main cause of numerous psychological problems faced by many people. Based on this case study, it can truly be ascertained that existential freedom implies not only the freedom of acting and responding, but also choosing in the contexts of specific conditions as well as the inherent limiting impacts (Frankl, 2006). Freedom is not therefore a condition that should be acquired during the course of existence because it is the basis of existence. From the case study, it can be derived that the clients will have the free capacity of reflecting and invoking the awareness of individual awareness because of having the free will of choosing and creating or developing ourselves from infinite available possibilities. It is prudent to note that numerous psychology approaches are aimed at overcoming or controlling the existence of individuals (. Instead, Existentialists always seek to become honest regarding their human conditions and strive as much as possible to comprehend it as it is. It is prudent to note that human nature cannot be deemed as being something t hat must be faced by all and sundry. Successful outcomes that emanate from existential therapy should be concerned about learning to embrace or uphold humanity instead of overcoming it. As opposed to other approaches to psychology that are aimed at overcoming or controlling peoples existence, the use of existential theory is aimed at seeking to become honest regarding the human condition as well as comprehending it as it is. In this case study, it can truly be said that the extential approach has been applied well in that it has made it possible for the therapist to facilitate the opening of available possibilities (Doostmusic, 2012). This is quite disadvantageous in that it allows the exploration of choices associated to responsibilities. This is important in personal life because it allows two individuals to become aware or conversant with each other about their similarities, their differences, and what that implies to their specific relationship. The engagement of the counselor and the client in the case study can truly depict that the quality of therapeutic alliance that was established by congruence was of high quality. This is attributed to the fact that the counselor encouraged self-disclosure through application of covert disclosures. In the video incidence, the therapist effectively made use of their own experiences to help in the clarification of any challenges that existed in the worldview of clients without necessarily revealing sources of such information (Corey, 2009). This is because overt disclosures are known to explicitly acknowledge the personal experiences of individuals. In this case scenario, it can be revealed that both the therapist as well as the client were interlocked in what can best be deemed as an inter-relational knowing. This moment was marked with sharing where tears, laughter, glances were experienced. There were instances where the therapist got engaged in a situation of crisis with the client, especially when the client challenged the therapist and there was need to offer a human response as opposed to a routine response. Existential counselling should involve working with beliefs and values and this can be achieved by ensuring that counselors effectively determine or ascertain what matters to clients most as opposed to what matters to them as counselors (Schneider Krug, 2010). The counselor in the case study effectively used both the verbal as well as non-verbal responses from the case study which helped in getting to know what mattered in the life of the client. For instance, the counselor asked the client questions and client responded through spoken words and body expressions. It also helped the counselor in the identification of authentic relationships such as dependability, respect, and honest from the client (Spinelli, 2005). Based on the case study, there are many vital lessons that can be learnt regarding the existential values. For instance, it can be eluded that there is always no correct method of being or the right answer that can be found. As a result, it is prudent for counselors to en sure that they help their clients to face their contradictions, conflicts, and paradoxes instead of aiming for one sided accomplishments. The final objective should not be yielding a perfect individual, but instead, it should be building an individual who is able to negotiate different contradictions in a creative and constructive manner (vanDeurzen, 2002). In conclusion, it can be ascertained based on this case study that the success of any existential counselling session is depended on all the parties that are involved. There is always need for all the concerned parties to ensure that they put aside any preconceived assumptions or notions regarding what is made about various statements and word in the course of the counselling sessions (Schneider Fitzgerald-Pool, 2005). Bracketing in an existential counselling session should never be geared towards removal; of assumptions, but rather, it should be aimed at placing them aside as other options are fully explored. It can also be learnt that the therapist should never ascribe to lesser or greater importance about what the clients tells. Therapists should always aim at supporting clients to place their statements against backdrops of existence and the worldview (Sartre, 2007). References Cooper, M. (2003).Existential therapies. London, England: Sage. Corey, G. (2009).Theory and practice of counselling and psychotherapy(8th ed.). Belmont, CA: Thomson Brooks/Cole. Doostmusic. (2012).Documentary on the life of Jean Paul Sartre: The road to freedom[Video file]. Retrieved fromhttps://www.youtube.com/watch?v=PAMCZKDgL04 Frankl, V. (2006).Mans search for meaning. Boston, MA: Beacon Press. (Original work published 1959) Sartre, J. P. (2007).Existentialism is humanism(C. Macomber, Trans.). New Haven, CT: Yale University Press. (Original work published 1945) Schneider, K. J. Krug, O. T. (2010).Existential-humanistic therapy. Washington, DC: American Psychological Association. Schneider, K., Fitzgerald-Pool, Z. (2005). Eating problems. In E. van Deurzen C. Arnold-Baker (Eds.).Existential perspectives on human issues: A handbook for therapeutic practice(pp. 5866). New York, NY: Palgrave Macmillan. Spinelli, E. (2005).The interpreted world: An introduction to phenomenological psychology(2nd ed.). London, England: Sage. vanDeurzen, E. (2002).Existential counselling and psychotherapy in practice(2nd ed.). London, England: Sage. vanDeurzen, E., Arnold-Baker, C. (Eds.). (2005).Existential perspectives on human issues: A handbook for therapeutic practice. New York, NY: Palgrave Macmillan. VanDeurzen-Smith, E. (2010).Everyday mysteries: A handbook of existential psychotherapy(2nded.). London, England: Brunner-Routledge. Yalom, I. D. (2001).The gift of therapy: Reflections on being a therapist. London, England: Piatkus Books.

How Does Temperature Affect Lipase Essay Example

How Does Temperature Affect Lipase Essay How does temperature affect the rate of reaction for Lipase? As the temperature increases, so will the rate of enzyme reaction. However, as the temperature exceeds the optimum the rate of reaction will decrease. I predict that at temperatures above 70 °C the enzyme lipase will become denatured and at temperatures below 10 °C the enzyme will become inactive. Since lipase operates within the human body I’d also predict that its optimum temperature would be around human body temperature which is approximately 37 °C. I predict that before the optimum temperature the rates will gradually increase and preceding the optimum there will be a drastic decrease in rate until the enzyme is denatured. I predict that the rate of enzyme activity at 45 °C will be half that of 30 °C. I predict that the rate of enzyme activity at 45 °C will be half that of 30 °C. Diagram courtesy of: http://www. rsc. org/Education/Teachers/Resources/cfb/enzymes. htm Diagram courtesy of: http://www. rsc. org/Education/Teachers/Resources/cfb/enzymes. htm In my controlled assessment I will be investigating the activity of lipase on milk fat at various temperatures so that I can then find an accurate temperature as to when the enzyme works at its optimum; when it becomes inactive and when it denatures. To find when the enzyme denatures is to find out when the bonds of this protein disintegrate and henceforth disable the enzyme from being of any further use. When these bonds break, the protein starts to unfold and loses some its properties. For example, a denatured protein usually becomes less soluble. As an enzyme, it will lose its ability to function as a catalyst. We will write a custom essay sample on How Does Temperature Affect Lipase specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on How Does Temperature Affect Lipase specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on How Does Temperature Affect Lipase specifically for you FOR ONLY $16.38 $13.9/page Hire Writer If the stress that is causing the denaturation continues, other changes may occur. Now that the normal structure of the protein is gone, new bonds may be formed, giving it a different shape. The bonds broken in a denatured enzyme is that of which links the polymers to form the amino acids. This means that if lipase were to denature at the higher temperatures it will then cause inactivity in breaking down the fat of the milk hence leaving the unchanged. In this investigation, however, there are numerous factors as to what can affect the investigations results. First of all, the temperature of the room can play a role in altering the results as it can change the temperature of both the solution and lipase. Moreover if one were to move the solution or lipase to another part of the room, or to carry out the investigation on a different day, the temperature surrounding the solution and lipase will change and henceforth change the temperature of the solution and lipase. Secondly, if the temperature of the water bath isn’t precisely the temperature it is supposed to be then, as expected, would change. Thirdly, the age of the contents can affect the concentration of the substrates which would then decrease the rate of reaction with lipase. Finally, there is the factor of human error, as we may not be capable of making perfect measurements consistently the amounts of each component will inevitably change, which would in effect change the results. Of this investigation our independent variable will be the rate of reaction, which we will measure by timing how long it would take for the solution to turn white after having the lipase poured in. Our dependent variable will be the time it takes for the solution to turn pink after having the lipase poured in. Our controlled variable is that of will be all other factors. Enzyme Diagram courtesy of http://students. cis. uab. edu/clight/finalprojectwhatisanenzyme. html Diagram courtesy of http://students. cis. uab. edu/clight/finalprojectwhatisanenzyme. html An enzyme is a molecule that changes the speed of reactions. Enzymes can build up or break down other molecules. The molecules they react with are called substrates; enzymes are catalysts. An enzyme works by allowing a substrate, or multiple substrates, to enter the active site, which is where the reaction takes place, and then to exit in either more or less pieces then it was when it first entered. The active site is unique to a specific substrate which means that other substrates cannot react with that enzyme unless the enzyme is modified. [An active site can be altered by a non-competitive enzyme which encircles the enzyme and alters the shape of the active site which could be very dangerous. ] Diagram courtesy of: http://www. wiley. com/college/boyer/0470003790/reviews/kinetics/kinetics_effec ors. htm Diagram courtesy of: http://www. wiley. com/college/boyer/0470003790/reviews/kinetics/kinetics_effectors. htm Note that the enzyme remains unchanged so that more of the some substrates can react. Note that the enzyme remains unchanged so that more of the some substrates can react. Structure Proteins are polymers made by joining up small molecules called amino acids. A mino acids and proteins are made mainly of the elements carbon, hydrogen, oxygen and nitrogen. Protein Protein Amino Acid Amino Acid Each gene acts as a code, or set of instructions, for making a particular protein. They tell the cell what to do, give its characteristics, and determine the way its body works. Each protein has a unique sequence of amino acids. This means that the number and order of amino acids is different for each type of protein. The proteins fold into different shapes. The different shapes and sequences give the proteins different functions, e. g. keratin are a fibrous protein found in hair and nails. If the gene has even the slightest of disorder within its sequence it could lead to an inaccurate order of amino acids and so a faulty protein or in our case faulty enzymes. Substrate concentration An enzyme has an active site where it binds the molecule (or molecules) it acts upon; the enzyme then catalyses a chemical reaction involving that molecule (or those molecules). That molecule (or those molecules) is called the enzymes substrate. So the substrate concentration is the concentration of the molecules an enzyme works on. Diagram courtesy of http://biochemistryquestions. wordpress. co m/2008/07/15/induced-fit-model-of-enzyme-substrate-interaction/ Diagram courtesy of http://biochemistryquestions. wordpress. o m/2008/07/15/induced-fit-model-of-enzyme-substrate-interaction/ In general, if there is an increase in substrate concentration, then more enzymes will be catalysing the chemical reaction and the overall rate of reaction will increase. It will continue to increase until all enzymes are actively binding substrate (called saturation), at which point no further increase in rate can occur, no matter how high you raise the substrate concentration. In my investigation into enzyme response to temperature this graph will be of relevant. Diagram courtesy of: http://www. sc. org/Education/Teachers/Resources/cfb/enzymes. htm Diagram courtesy of: http://www. rsc. org/Education/Teachers/Resources/cfb/enzymes. htm Denatured Denatured Denaturing Denaturing Less kinetic energy so the reaction slows down. Less kinetic energy so the reaction slows down. This graph illustrates the response that rate of enzyme activity has at various temperatures. At lower temperatures the rate is very low as there isn’t enough kinetic energy for the enzyme to work at its optimum, then you of course have the enzymes temperature optimum where the enzyme works best at. Finally you have the denaturing of the enzyme which eventually halts with the enzyme being completely denatured where it then will never have any activity. Collision Theory For a chemical reaction to occur, the reactant particles must collide. But collisions that do not have enough energy do not produce a reaction. The particles must have enough energy for the collision to be successful in producing a reaction. The rate of reaction depends on the rate of successful collisions between reactant particles. So the less successful collisions that occurs the less products created. Diagram courtesy of: ttp://www. worthington-biochem. com/introbiochem/tempeffects. html Diagram courtesy of: http://www. worthington-biochem. com/introbiochem/tempeffects. html The reason as to why particles may have or may not have enough energy to create products depends on the amount of kinetic energy in the particles. Hence why at lower temperatures the enzyme becomes inactive as there isn’t a high eno ugh temperature to create the necessary kinetic energy to create the products. As the temperature increases so does the rate which is due to more kinetic energy and hence more successful collisions. H An enzyme can also denature upon extreme pHs. with the extreme pH’s being 1 and 14, the enzyme would denature due to the hydrogen acids within the pH’s damaging the amino acid bonds within the enzyme. By damaging these bonds, the amino acids break apart, this in turn means that the enzyme’s active site will lose its shape, resulting in the denaturing of the enzyme. Henceforth, the optimum pH is in the middle of the pH spectrum as neutral pHs are unable to damage the bonds of the amino acids keeping the enzyme capable of reaction. Preliminary Method a. Get a test tube for each temperature being investigated. b. Add 5 drops, using a pipette, of phenolphthalein to the test tube. c. Measure out 5 cm3  of milk using a measuring cylinder and add this to the test tube. d. Measure out 7 cm3  of sodium carbonate solution using another measuring cylinder and add this to the test tube. The solution should be pink. e. Place a thermometer in the test tube. f. Place the test tube in a water bath and leave until the contents reach the same temperature as the water bath. g. Remove the thermometer from the test tube and replace it with a glass rod. h. Use the 2 cm3  pipette to measure out 1 cm3  of lipase from the beaker in the water bath for the temperature you are investigating. i. Add the lipase to the test tube and start the stopwatch. k. Stir the contents of the test tube until the solution loses its pink colour. l. Stop the clock/ watch and note the time in a suitable table of results. *A control was also investigated by having a test tube with the sodium carbonate, phenolphthalein and milk but without the lipase. This is to test as to whether the solution would turn from pink to white regardless of whether the enzyme was present or not. This was the original method which was used to carry out the preliminary investigation, however upon consideration it was decided that for the real practical a slightly alternate method should be used. In our edited method we made the changes of firstly, on putting the lipase into the water bath, this was because heating up the solution instead is to investigate the effects of the temperature of the solution as oppose to how the temperature of the enzyme effects. Secondly it was decided upon that we would not stir the contents for two reasons: firstly because by stirring the solution it spread the lipase around more which in effect speed the reaction up so much that it was impossible to time; secondly, by stirring the contents it often made the solution over flow which both made a untidiness and caused the volume of the contents to decrease. Finally it was decided that we were to limit the amount of temperatures being investigated as temperatures below 22? the enzyme was inactive hence taking too long to record the time it took for the solution to turn white, at temperatures over 55? c the enzyme, the lipase enzyme would be denaturing hence taking too long to be able to record as well. Final Method a. Get a test tube for each temperature being investigated. b. Add 5 drops, using a pipette, of phenolphthalein to the test tube. c. Measure out 5 cm3  of milk using a measuring cylinder and add this to the test tube. d. Measure out 7 cm3  of s odium carbonate solution using another measuring cylinder and add this to the test tube. The solution should be pink. e. Place a thermometer in the test tube. f. Place the test tube, containing only the lipase enzyme, in a water bath and leave until the contents reach the same temperature as the water bath. g. Remove the thermometer from the test tube. h. Use the 2 cm3  pipette to measure out 1 cm3  of lipase from the beaker in the water bath for the temperature you are investigating. i. Add the lipase to the test tube and start the stopwatch. k. Stop the clock/ watch and note the time in a suitable table of results. A control was also investigated by having a test tube with the sodium carbonate, phenolphthalein and milk but without the lipase. This is to test as to whether the solution would turn from pink to white regardless of whether the enzyme was present or not. Such changes were made in an attempt to improve the validity of the investigation. As is in the nature of an investigation it is impossible to make the results completely accurate and precise. What we c an do however is improve the reproducibility and reliability of our results by repeating the test multiple times. Risk Assessment Substance| Hazard| Risk| Risk rating*| Emergency action| Phenolphthalein | LOW HAZARD| Although it is not hazardous one should take precaution avoiding skin contamination. | 1| If in contact with eyes then flood eyes with water to wash it out. | Lipase| HAZARD| If in contact with skin it can cause an itch. If someone were to have an allergic reaction to lipase it could cause symptoms such as rashes. | 1| Seek emergency assistance if you believe you are having an allergic reaction to lipase. However wash it off as quickly as possible. Sodium Carbonate| IRRITANT| Sodium carbonate contributes to three major hazards: skin irritation, eye damage and internal effects. | 3| If swallowed, drink two or more glasses of water or milk. If in contact with skin use a cloth to wipe the sodium carbonate or rinse with water and if contact with eyes rinse thoroughly. | Milk| LOW HAZARD| If in contact with skin it can cause an itch, however some people may have an allergic reaction to t he substance. | 2| Acting in accordance to the severity of the reaction, one should wash it off as quickly as possible. Water| HAZARD| As the temperature of water we are to use will range between 10 °c-80 °c hot water may come in contact with us and burn ones skin. | 2| If hot water comes in contact with one’s skin one must rinse thoroughly with cold water to prevent further burning. | Test Tubes| HAZARD| If one were to drop a test tube, it would be very likely for it to smash, disintegrating over the floor which could then cut someone’s foot. | 2| If there is to be a broken test tube on the floor one must alert a member of staff and sweep the area whilst restricting anyone from crossing until one has finished clearing the area. Kettle| LOW HAZARD| If one were to knock a kettle over whilst boiling water the contents would spill and henceforth burn someone or something. | 1| Keep the kettle away from electrics and other peoples working areas. | *Risk rating out of / 5 Generic precautions As in all practical’s one must always take precaution of what is at hand, moreover it is obligatory to wear goggles to protect the eyes and to reduce the risk of skin contact one can wear disposable gloves. Another precaution to take is to ensure that no obstacles obstruct your movement as one may then spill a substance or break a piece of apparatus, a basic step is to push in all stools and to stand up when you do a practical. In addition a class should always leave their bags at the back of the classroom and put aside planners and books making a clear workstation. Any spills, accidents or injuries should be dealt with immediately and inform a member of staff. Review of Evidence The shape of the graph resembles that of the rate of enzyme activity graph on page 3, an arc. With the shape of the graph being similar to an arc, it displays clearly that there is a definite optimum to the rate of lipase’s activity and the stages of inactivity and denaturing. The optimum temperature of lipase on this rate graph was the same in both my preliminary data and my real results data which was 30 °c and in both instances the shapes of the graphs do resemble that of an arc. In the preliminary graph, the range bars were rather extensive for example, at 35 °c the difference between the highest (non-anomaly) result and the lowest was 0. 13 in rate. These inaccurate results could have been due to multiple factors with the more obvious being either human error or faulty equipment. By having such a difference in results it only justified the changes which we had made for the real investigation. When looking back upon my original hypothesis, it stated that before the optimum temperature the rates would gradually increase due to the lack of kinetic energy provided from the heat. Upon reviewing the graph it is clearly illustrated that there is an increase in rate from temperatures 22 °c-30 °c with an increase of 0. 26 in rate. I also predicted that the optimum temperature would be 37 °c, due to the fact that lipase operates in the human body and the human body’s temperature should be 37 °c. By analysing the evidence of which the graph presents it tells me that the highest rate of reaction was that of 30 °c, meaning this was the optimum temperature. Finally, I predicted that once the optimum was exceeded, the rates wo uld begin to decrease as they cannot function at such temperatures due to the breaking in the peptide bonds that holds the amino acids together. Once this bond is broken, the enzyme is reduced to its primary structure which is just peptide bonds occurring – the functional structure of the enzyme is lost and it is no longer functional; denatured. After the optimum temperature, which was 30 °c, the rate of reaction began to decline as the temperatures increased. Henceforth, my prediction was right in saying that once the optimum temperature had been passed; the denaturing process would begin to take place, meaning the rates of reactions would become slower. Upon looking back at my quantitative prediction, which stated that â€Å"at 45 °c will be half that of 30 °c. † However, the decrease in rate was far more drastic then I had predicted. (Rate of 30 °c was 0. 032; rate of 45 °c was 0. 005. ) This means that the process of denaturing was far quicker than I had previously predicted which in turn means that my quantitative was incorrect. However, if I were to replace the 45 °c figure in my initial quantitative prediction with 35 °c it could then be plausible as the rate of 35 °c was 0. 011 (30 °c-0. 032. )In addition, I would further modify my initial prediction by Secondary data By analysing the provided secondary data I shall be able to further prove or disprove the evidence that I had recorded. By being able to prove my data with secondary data which has the same outcome and conclusion it proves that that the data is repeatable as there are externally recorded results that support the results that I had recorded. Figure 4 courtesy of: http://www. currentscience. info/upload/IssuesFile/29_issues_Article%2010. pdf Figure 4 courtesy of: http://www. currentscience. info/upload/IssuesFile/29_issues_Article%2010. pdf Figure 3 courtesy of: http://www. google. co. uk/url? sa=t;rct=j;q=;esrc=s;source=web;cd=7;ved=0CGIQFjAG;url=http%3A%2F%2Fwww. diagnosisp. com%2Fdp%2Fjournals%2Fview_pdf. php%3Fjournal_id%3D1%26archive%3D0%26issue_id%3D31%26article_id%3D1135;ei=nrjEUJ2XC8HJ0AXPy4DACQ;usg=AFQjCNEb15WjPAyJMMgCDAjs3ZaorsN3qg;sig2=mf7h7XRNBjWBD3cdMS2v-w Figure 3 courtesy of: http://www. google. co. uk/url? sa=t;rct=j;q=;esrc=s;source=web;cd=7;ved=0CGIQFjAG;url=http%3A%2F%2Fwww. diagnosisp. com%2Fdp%2Fjournals%2Fview_pdf. hp%3Fjournal_id%3D1%26archive%3D0%26issue_id%3D31%26article_id%3D1135;ei=nrjEUJ2XC8HJ0AXPy4DACQ;usg=AFQjCNEb15WjPAyJMMgCDAjs3ZaorsN3qg;sig2=mf7h7XRNBjWBD3cdMS2v-w Figure 1 (left) ; 2 (above) courtesy of: http://www. slideshare. net/wkkok1957/effect-of-temperature-on-lipase-activity-using-ph-sensor Figure 1 (left) ; 2 (above) courtesy of: http://www. slideshare. net/wkkok1957/effect-of-temperature-on-lipase-activity-using-ph-sensor Comparing the data sets As is clearly shown in all of the above figures there is a clear optimum. In terms of the optimum temperature, it ranges from 35 °c (figure 2 ; 3) to 25 °c (figure 4. Whereas in the recorded data that I had collated, it was 30 °c with the rate for 35 °c being significantly less than half of the rate for 30 °c. When comparing the rates at 20-25 °c another difference in rate had occurred as you can see in figures 1, 2, 3 ; 4 there isn’t such a sharp increase in rates whereas in my own results there is a steep increase in rate between 22 °c and 30 °c, a difference of 0. 026. ) Moreover, in terms of the temperature at which the lipase denatures also varied as the denatured point in figure 3 is at 50 °c whereas the temperature at which the lipase denatured in my investigation was at 55 °c. Finally in terms of the shape of the graphs you can see that in figure 2 the shape of the graph is of a rather steady contour oppose to the sharp point that is of my graph shape. The foremost reason as to what caused such differences was the fact that the secondary investigations used an alternate for example in figures 1 ; 2 the method utilised was slightly different as they used more accurate pieces of apparatus for example they used a micropipette to measure the sodium carbonate into the test tube which would ensure for far more accurate measurements then I had made. Secondly they used a pH probe a Logger Pro to detect the change in the milk which would also prove for much more accurate readings in comparison to detecting the change with the eye as we cannot see the entire of the solution and we, henceforth, could record a shorter or longer time to the actual figure as we would essentially be guessing as oppose to knowing when the reaction was definitely complete. On the contrary however, they only repeated each temperature 3 times so as to collect triplicate data. In conclusion I would say that by analysing secondary data it does support my data in its general trend but in terms of individual figures, inactivity and denatured points I am unable to defend and justify that my investigation is completely reproducible. I must say that in all, I would say that the reason as to why there is a difference in the primary data and secondary data is due to multiple factors such as alternate methods, alternate apparatus and an alternate working environment. However, in total, I do feel confident in saying that my results are reproducible to such an extent that it can resemble that of the actual figures and graph shape. Evaluation of errors I believe that the changes made to the preliminary method for the real investigation did improve the overall accuracy of the data in the real results data. However, in the results there were many outliers that were recorded, six in total. These errors and possible inaccuracies were made possible by such factors as human error, equipment error and technique rror. In terms of human error we may have made the mistake of timing the reaction wrong because the people who are timing the investigation may time it wrong. Secondly, there may be a difference in opinion in when the reaction would have fully completed as one may say that the solution still contains traces of pink yet another may say that the solution has no traces left. Finally, there could have been the human error of inaccurately measuring the p ortions of the solution. In terms of equipment error, sometimes the water baths were unable to heat the solution to the specified temperature of which were trying to investigate which would then have the effect of us collating alternate data to what we should have got, this would then alter our rate bars as they be higher or lower. Furthermore, there may no longer have been a real difference in the data’s even if there was supposed to be. Secondly, our portions of the solution may have been measured inaccurately as the measuring cylinders used may have not been accurate enough for us to get precise measurements. On top of this, whilst using the pipette to measure the contents into the measuring cylinder, air bubbles were created which then alter our results as we would then be measuring a different quantity as opposed to the proposed temperature. Finally such technique errors occurred such as the lipase may have not spread equally amongst the solution which would have left a section of the solution untouched by the enzyme. Furthermore as we took the lipase out of the water bath the temperature of the lipase would either increase or decrease if above or below the room temperature. To improve the accuracies and reliabilities of the data collected and to reduce the errors as is mentioned above I would make such alterations to the existing method: -To ensure that the lipase truly got to the temperature that it was supposed to be at an improvement would be as to set the temperature of each water bath 3 °c higher than what was prepared for which would make it easier for the lipase to heat up to the specified temperature. To increase the accuracy and eliminate the of measuring incorrectly the solution ingredients an improvement could be to use a syringe as oppose to a pipette as the pipette can’t measure as accurately as a syringe because whilst using the pipette bubbles where constantly created which made it incredibly difficult to then accurately measure the contents that were to be measured in. -As is the nature of foods and drinks the milk would eventually surpass the date hat it was meant to be consumed by. However this means that the bacteria within t he milk may function in a different manner because the bacteria uses the lactose sugars to reproduce, they change it from â€Å"lactose sugar† into â€Å"lactose acid,† which tastes sour and it becomes a huge food borne illness risk to consume it and it must be discarded. Instead then we can use such alternatives as UHT or powdered milk as they have longer life spans because more of the bacteria is removed. To remove the factor of misjudgement whilst trying to detect as to whether the solution has lost all traces of pink an improvement can be to use a pH probe next time as the pH probe could then accurately detect once the reaction has completely finished by seeing when the figures stop changing on the pH probe. Improved Method a. Get a test tube for each temperature being investigated. b. Add 5 drops, using a pipette, of phenolphthalein to the test tube. c. Measure out 5 cm3  of milk using a measuring cylinder and add this to the test tube. . Measure out 7 cm3  of sodium carbonate solution using another measuring cylinder and add this to the test tube. The solution should be pink. e. Place a thermometer in the test tube. f. Place the test tube in a water bath and leave until the contents reach the same temperature as the water bath. g. Remove the thermometer from the test tube and replace it with a glass rod. h. Use the 3 cm3  syringe to measure out 1 cm3  of lipase from the beaker in the water bath for the temperature you are investigating. . Add the lipase to the test tube and start the stopwatch. k. Using the pH metre wait until it displays that no pink resides in the solution. l. Stop the clock/ watch and note the time in a suitable table of results. *A control was also investigated by having a test tube with the sodium carbonate, phenolphthalein and milk but without the lipase. This is to test as to whether the solution would turn from pink to white regardless of whether the enzyme was present or not. Evaluation of procedures When analysing and evaluating the procedures I shall divide the section into four sectors: precision, accuracy, repeatability and reproducibility. Precision refers to how well experimental data and values agree with each other in multiple tests. [1] The only evidence to demonstrate the precision of the data is the range bars. All range bars excluding 30 °c ;0. 001, however for 30 °c the range is ;0. 001. This proves that the precision of the data was quite good with the exception of the data for 30 °c. By having a small range in data it exemplifies precision of the data as they are all within a similar region of figures. However with 30 °c the data was rather spread meaning that the results for 30 °c degrees were not precise due to the fact that my range bar is rather spread when compared to the likes of the data from 22 °c where the range bar is a quarter of the size of the range bar for 30 °c. This provides me with the necessary evidence to believe that the rest of my results were precise, with the results for 30 °c being the exception. The ability to obtain consistent results when measuring the same part with the same measuring instrument. [2] Upon considering the repeatability of this investigation one can say that the results are most certainly repeatable as the data resembles that of which others have collated and that of the preliminary data. If one were to repeat the investigation with the improved method then the investigation is, with no doubt, repeatable as the evidence lies within the secondary data that supports the data of which I have collated. Accuracy refers to the correctness of a single measurement. Accuracy is determined by comparing the measurement against the true or accepted value. [3] Although there is nothing we can do to improve the accuracy per say, we can, for example, remove outliers that do not share any resemblance to that of the true value, we are able to make more accurate calculations as to what the average is because we are taking out a value that does not mean anything to the true value. By doing so in my calculations it not only improved the accuracy of the results but it also exemplified how some factors could change the results so drastically. This demonstrates that although we can control most factors that alters the results we can’t completely control them as there are endless factors as to what can affect the results recorded, for example the room temperature could affect the results is could have heated or cooled the solution. By controlling the variables of which were possible to control we did all that was possible for us to do in order of making the investigation valid. Furthermore, by repeating the outliers again to get a new set of results it would provide for a more accurate average. This is something that was not done due to the lack of time Reproducibility is one of the main principles of the scientific method, and refers to the ability of a test or experiment to be accurately reproduced, or replicated, by someone else working independently. [4] If the results were to be reproducible then it would be possible to look at secondary data and see that it closely resembles that of the results I have provided. When comparing my results to that of peers of who are carrying at the same investigation there is most certainly a resemblance in the overall shape of the graph. Although the rates may differ the general trend of the graph does suggest the same conclusion that there is a definite optimum at around 30 °c-35 °c. http://www. slideshare. net/wkkok1957/effect-of-temperature-on-lipase-activity-using-ph-sensor -this is a link to someone else’s investigation and results (Tony Hong), from this link you are able to see Tony’s investigation and results that follow a similar method as to mine. With this it is possible to see the results and henceforth make

Kalevala

Kalevala Kaleva"Kalevala" is epithical poem written by the Finnish poet Eliasom Lennrotom in first half of the one century ago on the basic facts collected him for many years of searching Finnish and Karelian songs, legends. These songs passed from father to son from sun to grand children and so on during the centuries. Lennrot only collected these songs and on the basic facts of their heroes and plots has created the living and consecutive epos. And being the person of eighteenth century, he has brought in "Kalevala" some new ideas, but the soul of a poem is still national and represents historical, and cultural value. (104)"Kalevala" is written not like normal poem, it written with runes. As I understand it's like finish Adam and Eva. It shows the making of the world. Before the people on the earth were only Gods and I made the mistake there was only water land.Woman in a rowing boatOne of the first birds live the eggs on Ilmatar body... but she was very tired of this work. So she broke the m and the world is formed from the pieces. That is how the land was made and what about the humans? (~100)This very strange and interesting position of women. (?) A part of women are slaves to their husbands, families of the husbands, but other women are best of their sorts, and occupant the supreme places in social hierarchy. And the young woman occupied position of slave in the house. But against the slave she couldn't complain because it was her sort. Here is very much text about courtship of a woman by the main heroes. She doesn't choose, but the future husband chooses her. And if she doesn't like him only one way to continue marriage is...

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

Congress - Essay Example The US Congress consists of 435 voting members in the House of Representatives and 100 voting members in the US Senate, totaling to 535 members of the legislature. This paper will seek to discuss the organization and structure of Congress, membership of Congress, general Congressional authority, and modern problems facing Congress. Organization and Structure of Congress The United States Congress’ organizational structure is based on the Constitution, enacted legislation with presidential assent, and rules created by Senate and the House of Representatives. Congress is a bicameral legislature, meaning it is made up of 2 bodies with legislative power; Senate and the House of Representatives (Smith et al, 2011). Prior to being sent to the executive, legislation has to pass through both chambers and approved. The Senate has one hundred members with the US Vice President being the chamber’s president and being the only official ion government who serves in two government br anches, although in a largely ceremonial role and votes when there is a tie. The actual functional leader is the majority Leader of Senate who is selected by either party depending on which has the most members (Smith et al, 2011), while the minority leader is head of the other party. The lower chamber of Congress is the House of Representatives made up of some 435 members with voting privileges. This chamber is led by the House Speaker elected by members of the party with a majority (Smith et al, 2011). The second most powerful member in this chamber is the majority leader of the house whose selection is also carried out by the party with the majority, while the party with the minority is headed by the Minority leader. Because of these differences in organizational structure, the voting rules in both houses are also different. For the House of Representatives, majority vote of those present is considered in passing legislation, while a supermajority of 60 is used in Senate. Subcomm ittees and committees do most of the duties carried out in both chambers of Congress where legislation under proposal is first considered (Smith et al, 2011). If a committee approves legislation, it becomes a bill and moves to the Senate or House of Representatives to be considered and ultimately voted on. Membership in Congress In the House of Representatives, members represent people living in a district and serve for a term of two years. The results of the US Census are used to apportion Congressional Districts to states with each state having at least one congressman or woman. Regardless of census results, every state has two Senators, each of whom serves six years (Bianco, 2010). Election of Senate members is staggered to ensure that a third of the house is up for election after two years. These groups of Senators are referred to as classes and each state has senators from different classes. The House of Representatives, as suggested by its name, is considered the most represen tative for the American population. Tied to their election, members of Congress work for periods of two years, each of which is referred to as a Congress, beginning from the start of the year after an election (Bianco, 2010). In order to become a member of the House of Representatives, one must be 25 years of age, while a Senator must be at least thirty years of age. With regards to citizenship, the US Constitution holds that hopefuls for membership to the House of