Enzymes Research Paper Example | Topics and Well Written Essays - 1250 words

Enzymes - Research Paper Example They are encoded by the genetic material which is a map telling the catalysts how to form and function. Enzymes work by lowering the activation energy of the reaction, which means that the reaction can proceed much quicker. The enzyme-substrate complex is an important component in understanding how enzymes work. Enzymes bind to substrates in order to change the substrate and form a product. The enzyme and substrate are complementary to one another; therefore they usually can only bind with one enzyme. This is why the enzyme-substrate complex has been named as the â€Å"lock and key model†. In some cases, there is more than one substrate, which can bind to a particular enzyme. Competition of the substrate with the enzymes and chemical equilibrium is what keeps some biological systems in check, with producing some products more than others. In medical application, sometimes these enzyme levels need to be regulated. According to chemical principles, if you increase one amount of products in an equilibrium situation, the body will move so to remove this stress. In the case of medicines, they can be used to regulate these biochemical equilibriums, which can be thrown of as the result of diet, external factors, mutations, etc. Enzymes are a type of protein, meaning that they are created in the intercellular processes like every other kind of protein. DNA contains the original blueprint. Through the use of mRNA, tRNA, and rRNA, the protein is synthesized. Transcription is where the RNA copies the enzymatic genetic code and translation is where the tRNA and rRNA create the enzymatic protein from the translation of the mRNA. Enzymes come in many different configurations and can exist a numerous amount of conditions performing infinitely numerous diverse tasks in the body. For example, there are enzymes, which regulate protein synthesis such as helicase, DNA polymerase, etc. There are enzymes that regulate digestion, neurological functioning, etc. However, sometim es there are problems in enzymes, which cause them to not function appropriately either as a result of the way they were encoded or environmental factors. Errors in the encoding of DNA, deoxyribonucleic acids, can lead to mutations in key enzymes and defects in the enzymes. As a result, certain medical conditions and genetic mutations can lead to maladaptive processes in life. For example, Fibromyalgia is a medical condition in which a person experiences pain in the areas of joints, muscles and other tendons. This is due to a deficiency in an enzyme known as amylase, which is responsible for breaking down carbohydrates. As a result of a lack of this enzyme, this leads to another host of physiological problems. Body aches and stiffness result in multiple muscle groups and places on the body, with the pain ranging from moderate to severe. The pain is not the result of tissue degradation, but rather has to deal with grinding and inflexibility, which leads to the pain. Other known sympt oms of Fibromyalgia are irritable bowl syndrome, depression, and lack of exercise, which can lead to problems with obesity and heart disease, as well as a ride range of other physiological conditions. Luckily, there are many techniques, which are used to treat this condition. The use of physical therapy as a way of strengthening the joints, muscles, and tendons is one of the most commonly used techniques for

Alcoholic Beverage and Scott Russell Sanders Essay Example for Free

Alcoholic Beverage and Scott Russell Sanders Essay Analysis of â€Å"Under the Influence† by Scott Russell Sanders Scott Russell Sanders’ narrative essay â€Å"Under the Influence† is a piece about his experiences with his alcoholic father. To describe these experiences, Sanders uses animalistic diction, asyndeton, and explains how his father’s disease creates insecurities in himself. Sanders’ purpose is to describe life with an alcoholic in order to demonstrate the effects and devastation in correlation with the â€Å"disease†. Using negative connotation, Sanders creates animal-like characteristics when writing about this father’s illness. Sanders reminisces about this childhood when he would â€Å"tiptoe past [his father], as past a snoring dragon†(59); he is portraying his father as a creature known for being a giant, angry, fire breathing monster. While intoxicated, people are often referred to as having â€Å"dragon’s breath†, which is why Sanders chooses a dragon over any other monster or creature. When Sanders’ father argues with his mother, â€Å"he snarls back, she yells, he growls† (59); this gives the father traits of an animal showing that his disease is dehumanizing and turning him into a monster when he drinks. In addition, Sanders’ gives his father animalistic qualities in contrast to his mother. His mother would regularly address the fathers’ alcohol problem which would lead to an argument in which the father would â€Å"grunt† and â€Å"snarl† while the mother â€Å"yells†. This implies the father is an animal while the mother still has human qualities. The disease of alcoholism not only destroys the father, but also places several insecurities inside Sanders himself. Sanders feels that maybe if he â€Å"[earned] A’s in school, [won] baseball games, [or fixed] the broken washer† (59), it would take away the â€Å"ache that gnaws† at this father. Seeing his father drink as a child, Sanders feels tha t it is his fault that his father drinks as much as he does, because he is not the great son every father dreams of having. Sanders also recognizes that he is more likely to become an alcoholic and shies away from â€Å"nightclubs, from bars, from parties where the solvent is alcohol† (68). He is reluctant to drink alcohol because he is insecure about his ability to resist acquiring the â€Å"illness† (â€Å"†¦a glass of wine, a can of beer, nothing stronger, nothing more. I listen for the turning of a key in my brain.†); since statistics show that since his father is an alcoholic, the disease is contagious. Using asyndeton, Sanders shows how certain memories are stronger than others. When using the asyndeton, (â€Å"our father prowls the house, thumping into furniture, rummaging in the kitchen, slamming doors†¦Ã¢â‚¬ )(59), it gives the effect that these memories are often repeated over a long period of time and he remembers vividly, this technique gives a tone that Sanders is annoyed and somewhat depressed with the effects of his father’s drinking. If these memories were frequently happening, Sanders probably became annoyed of seeing his father under the influence and going through the same routine everyday, and becoming depressed knowing that there is something wrong with his father and that he is hurting from his illness. These strategies give us a deeper understanding of the life of an alcoholic and how it not only destroys the one with the disease, but the people around them. If you were Sanders, how well should your shining armor stand against the dragon of alcoholism?

Language Learning Is A Complex Process English Language Essay

Language Learning Is A Complex Process English Language Essay Spielberger defined as the subjective feeling of tension, apprehension, nervousness and worry associated with an arousal of the autonomic nervous system. It is a psychological and physical response to a threat to certain values which the person holds as essential to his existence (May, 1977). Foreign language classes is perceived by many students as more anxiety provoking than other classes (Horwitz et al., 1986). Although some past researches suggested that foreign language anxiety may be facilitating (Chastain, 1975; Kleinmann, 1977), recent studies have proved that its effect is more debilitating to the language learning process (e.g. Philips, 1992; Aida, 1994; Donley, 1997; Von Wà ¶rde, 1998; Ando, 1999). In addition, MacIntyre and Gardner (1991) states that anxiety is really problematic to foreign language learners since it hinders the acquisition, retention and production of the new language. Foreign language anxiety (FLA) is a new term coined by Horwitz et al. (1986). It is a specific type of anxiety experienced by learners of foreign and second language learners. It is the feeling of stress and nervousness which affect non-native speakers while studying a foreign or second language. Horwitz, Horwitz, and Cope (1986) define FLA as a complex phenomenon which consists of self-perceptions, beliefs, feeling, and behaviours related to classroom language learning arising from the uniqueness of the language learning process. Young (1992) defined it as a complex psychological phenomenon specific to language learning. A more general definition of FLA given by MacIntyre and Gardner (1994) describes it as a type of situation-specific anxiety in speaking, listening, and learning that is experienced by learners in the context of second or foreign language learning. Moreover, MacIntyre (1995) pointed that anxiety may facilitate or debilitate the learners academic performance. Accordin g to Spielberger et al (2005) FLA is the fear that a person feels when using a second or foreign language in which he is not proficient. He describes it as the tendency of the individual to react nervously when using the second language in the different linguistics skills, (i.e. speaking, listening, reading and writing). Since then researchers have produced a considerable number of studies to prove that it is not merely an abstract issue, but a reality for foreign language students (e.g., Casado Dereshiwsky, 2001; Coryell Clark, 2009; KostiĆ¡-BobanoviĆ¡, 2009; Liu, 2006; Liu Jackson, 2008; MacIntyre Gardner, 1994a; Tallon, 2009; Von Wà ¶rde, 2003). According to Horwitz et al (1986) the main causes of foreign language anxiety to communication apprehension, fear of negative evaluation and test anxiety. Communication apprehension prevents the learner to develop communication skills in the target language. Likewise, fear of negative evaluation is the learners feeling that the teacher and other classmates may negatively evaluate their language ability (Horwitz et al.; 1986). According to Horwitz et al (1986), test anxiety is related to the performance of the learner. He considers the task or test as a threat instead of an opportunity to improve his language skills (Dà ¶rney, 2001). Horwitz et al (1986) pioneered the first instrument to measure the foreign language anxiety named as the Foreign Language Classroom Anxiety Scale (FLCAS). Since then, various studies have been conducted to define the relationship between foreign language anxiety and performance of learners. There is a general agreement that FLA has a negative effect on the language learning process and performance (Horwitz et al., 1986; MacIntyre Gardner, 1991; Phillips, 1992; Young, 1991). Horwitz (2000) further adds, countless language learners and teachers across the world identify with the experience of foreign language anxiety, and the potential of anxiety to interfere with learning and performance is one of the most accepted phenomena in psychology and education. There is a general agreement among researchers that there is a consistent moderate negative correlation between FLA and learners performance (Aida, 1994; Horwitz et al., 1986; MacIntyre Gardner, 1991; Phillips, 1992; Saito Samimy, 1 996; Coulombe , 2000; Kim , 1998). Foreign language speaking anxiety (FLSA) is specific type of anxiety which prevents the learner to communicate in the target language. Horwitz et al. (1986) suggested that FLA frequently occurs also in speaking in the form of a shyness characterized by fear of communicating in the foreign language. Tsiplakides and Keramida (2009) concluded that FLSA has a negative influence on students performance and they also proved that a decrease in anxiety automatically causes an increase in students motivation and hence performance is enhanced. However there are very few studies conducted to explore the reality FLSA and determine its impact on the learning process from the students perspective.

violence in movies Essay -- essays research papers

If you watch movies these days you know you’re sure to see some sort of violence whether it be a killing, beating, or some kind of cruel act. Now every time you watch TV, you are likely to see a commercial promoting a new movie with a catch title such as â€Å"Scream† or â€Å"Fear.† Whether you think these movies are necessary or not, production companies know they will get the viewers and this is why they keep making them.   Ã‚  Ã‚  Ã‚  Ã‚  I was watching a movie the other day, with my lovely girlfriend of course, by the name of â€Å"The Matrix.† The title caught both our eyes as we browsed the aisles of the movie store searching for something good to watch. Seeing that my girlfriend does like violence in movies and thinks its unreal, it seemed like a good enough choice for me. The back of the box showed nothing of violence and the description gave no hints to shootings and killings. The beginning of the movie went well but about a half hour into it, as soon as we could blink our eyes, one of the characters pulls out about twelve machine guns planning to kill the whole city I guess. After blasting all 10,000 of the bullets into the ten guys he was trying to kill, my girlfriend got right up, marched over to the VCR in disgust, and pushed stop before I could get one word of protest out. As you can see, these days there’s not much you can do to get away from watching a movie with even a l ittle violence in it.   Ã‚  Ã‚  Ã‚  Ã‚  Why is it that violence attracts us t...

Continuum Of Care Outline Essay

I. Introduction II. Stakeholders A. The â€Å"description of the roles of various stakeholders in the health care industry who are involved in the continuum of care† (University of Phoenix, 2015). 1. Who the patients are. 2. Who the employees are. 3. Who the payers are. 4. Who the providers are. B. â€Å"How the component contributes to or detracts from the overall management of health care resources† (University of Phoenix, 2015). 1. Is this a positive or negative affect? III. Services provided and employees’ role(s). A. â€Å"Discuss the services provided and how these services fit into the continuum of care† (University of Phoenix, 2015). 1. What services are provided? 2. How do these services fit into the continuum of care? 3. â€Å"The role of transitioning patients from one level of care to another in the health care continuum† (University of Phoenix, 2015). See more: 5 paragraph essay format B. â€Å"Description of the health care delivery component’s role in providing services† (University of Phoenix, 2015). 1. Who provides these services? 2. How the services are delivered. IV. Current and Future of Home Health Care A. What are the current trends and how they are changing? B. What the potential trends are. 1. How these potential trends will change delivery components and services in the future. 2. Accommodating for the future trends. V. The Characteristics of Integrated Delivery System (IDS) A. Health Care organizations. B. Community health. VI. Conclusion References University of Phoenix. (2015). Continuum of Care Presentation. Retrieved from University of Phoenix, HCS/235-Health Care Delivery in the U.S. website.

Free Essays on The Symbolic Nature Of Caves In E. M. Forster’s A Passage To India

A Passage to India, E. M. Forster’s best-known novel, illustrates the cultural dichotomy of Indian and British lifestyles in the age of imperialism. Perhaps one of the greatest incongruities in this dichotomy is the differing view of life held by the Christian, Muslim, and Hindu characters within the novel. Forster divides the novel into three sections – Mosque, Caves, and Temple. In each of these sections Forster addresses, albeit elusively, issues of spirituality and human existence. Forster’s symbolic elements within A Passage to India require the reader to contemplate the deeper issues of the human psyche. Perhaps the most important symbolic element within the novel – in both structure and theme – are the Marabar Caves. Here, deep within the recesses of the dark caves, the characters within the novel confront the deepest recesses of the unconscious mind. A Passage to India begins in the city of Chandrapore in British ruled India, a location best known for its proximity to the famous Marabar Caves. The most crucial events in the novel take place within the caves, and characters such as Mrs. Moore and Adela must face their deepest inner fears because of the events that occur within the caves. In Part Two of the novel, aptly named Caves, Forster’s initial description of the geography of Marabar is rich with imagery that hints at deeper meaning: There is something unspeakable in these outposts. They are like nothing else in the world, and a glimpse of them makes the breath catch. They rise abruptly, insanely, without the proportion that is kept by the wildest hills elsewhere, they bear no relation to anything dreamt or seen. To call them â€Å"uncanny† suggests ghosts, and they are older than all spirit. (Forster 136) Forster subtly evokes feelings of spirituality and solemnity, ideas that foreshadow later events in the novel. Yet, Forster departs sharply from these mystical images in the passage tha... Free Essays on The Symbolic Nature Of Caves In E. M. Forster’s A Passage To India Free Essays on The Symbolic Nature Of Caves In E. M. Forster’s A Passage To India A Passage to India, E. M. Forster’s best-known novel, illustrates the cultural dichotomy of Indian and British lifestyles in the age of imperialism. Perhaps one of the greatest incongruities in this dichotomy is the differing view of life held by the Christian, Muslim, and Hindu characters within the novel. Forster divides the novel into three sections – Mosque, Caves, and Temple. In each of these sections Forster addresses, albeit elusively, issues of spirituality and human existence. Forster’s symbolic elements within A Passage to India require the reader to contemplate the deeper issues of the human psyche. Perhaps the most important symbolic element within the novel – in both structure and theme – are the Marabar Caves. Here, deep within the recesses of the dark caves, the characters within the novel confront the deepest recesses of the unconscious mind. A Passage to India begins in the city of Chandrapore in British ruled India, a location best known for its proximity to the famous Marabar Caves. The most crucial events in the novel take place within the caves, and characters such as Mrs. Moore and Adela must face their deepest inner fears because of the events that occur within the caves. In Part Two of the novel, aptly named Caves, Forster’s initial description of the geography of Marabar is rich with imagery that hints at deeper meaning: There is something unspeakable in these outposts. They are like nothing else in the world, and a glimpse of them makes the breath catch. They rise abruptly, insanely, without the proportion that is kept by the wildest hills elsewhere, they bear no relation to anything dreamt or seen. To call them â€Å"uncanny† suggests ghosts, and they are older than all spirit. (Forster 136) Forster subtly evokes feelings of spirituality and solemnity, ideas that foreshadow later events in the novel. Yet, Forster departs sharply from these mystical images in the passage tha...