DNA synthesis and repair Essay Example | Topics and Well Written Essays - 1500 words

DNA synthesis and repair - Essay Example contains over 3 billion bases that are similar in all people but the order of their arrangement determines the uniqueness of one individual and can be used to determine if there is any relationship between individuals. The DNA bases combine with each other to form a base pair for example when A combines with T, C and G they form a pair that is unique for each human being (Adams and OIRL Press, 1991, p.17). Each base is combined with a sugar molecule and a phosphate molecule and the combination is called a nucleotide which is arranged in two long strands forming a double helix. The spiral nucleotide forms its self like a ladder with the DNA pairs as the ladder rungs while the sugar ad phosphate molecules act like the sidepieces of a ladder (Kornberg and Baker, 2005, p.7). DNA serves the purpose of storing biological information since it is resistant to cleavage and both strands store the same biological information (Adams and OIRL Press, 1991, p.44). In the human body cells, there are normally 46 strands of DNA that are called chromosomes and they are coded in a sequence of heterocyclic amines (Adams and OIRL Press, 1991, p.47). The chromosomes contain genes that contain hereditary information used to distinguish an individual from another or establish their biological information. The human body cells are in a continuous process of multiplication due to cell damage and body growth. Prior to cell division the DNA material that was previously in the cell must be duplicated so that the cell to come after cell division will have a full amount of DNA material. The semi-conservertive process by which the dna material is duplicated is called DNA replication. The process is termed as semi conservertive since the DNA in the new cell contains one strand from the previous cell and a newly synthesized strand and DNA Replication take place by breaking the hydrogen bonds between bases of the two antiparallel strands (Adams and OIRL Press, 19 91, p.50). The unwinding of the two

Evaluation of corrosion rate AK80 and ZK60 Mg alloys Essay

Evaluation of corrosion rate AK80 and ZK60 Mg alloys - Essay Example (R.K. Sinnott, 2005) (2) Galvanic Corrosion- When two dissimilar metals are in contact in an atmosphere conducive to corrosion, then by its position in the electrochemical series one forms the anode and the other forms the cathode. The anode thus formed readily corrodes. This principle is used to protect the outside hull of ships by using sacrificial zinc anodes. By its position in the electrochemical series zinc forms the anode and undergoes material erosion thereby protecting the steel hull. (Oliver M. Siebert, B.et al; 1997) (3) Pitting- This is a highly localized form of corrosion. Usually materials are given a good surface finish to prevent its occurrence. The rate of corrosion in such cases is difficult to predict because once the corroding point breaks through the surface finish the material degradation progresses in a rapid manner. This proceeds by forming a pit and in an oxygenated atmosphere its activity is increased. Slag inclusion and entrapment of air during welding and formation of bubbles in pipes and valves during liquid flow all lead to pitting corrosion. (4) Inter-granular Corrosion-This is a form of corrosion which happens in alloying materials. Since alloys are a mix of different metals, the impurities tend to accumulate at the grain boundaries during heat treatment. This leads to propagation of corrosion although the amount of material corroded is small. (Oliver M. Siebert, B.et al; 1997) (5) Stress induced corrosion- This form of corrosion proceeds when materials are subjected to highly stressed environments. After a welding process, there will always be residual stresses that need to be relieved by post weld heat treatment. Failure to do so will lead to these stresses creating cracks and fissures in the welds. Materials that are subjected to repeated cyclic loads may fail due to fatigue stresses that are generated with time. Under such conditions the

Discussion Assignment Example | Topics and Well Written Essays - 250 words - 3

Discussion - Assignment Example hat has been ignored by most of the top managers of organization as the central focus has always been the development of intelligent quotient (IQ) (Murphy, 2006). The development of the emotional intelligence has been proposed to be a group affair in which groups and teams are formed such that they develop the urge as a unit in achieving a common objectives and goals as agreed. In such a situation a credit given due to success is no directed to an individual but to the entire group that participated in the process (Murphy, 2006). The two researchers further proposes that the need to institutionalize emotional intelligence is paramount in enabling very member to feel a sense of belonging and to even develop the enthusiasm in the work place. In conclusion, their approach to management of workers in a work place is counter productive, the individuals will be clumped together as groups with specialized duties and within the groups are the teams which consist of people of specialized duties. They make it crystal clear that in their model the teams constitute part of the groups while the groups are not part of the team. There model also enhances specialization and division of labor which is a prerequisite to higher production per

PARLIAMENT, POLITICS AND POLICY MAKING Essay Example | Topics and Well Written Essays - 2000 words

PARLIAMENT, POLITICS AND POLICY MAKING - Essay Example This is not, however, the case. The argument is that Westminster wields relatively weak influence in matters of policy for several reasons. The most prominent of these are: 1) the two parties of the British political system exercise more control; 2) the executive branch of the government is the sole decision-making agency; and, 3) the existence of the policy communities. This paper will investigate this issue and determine the role of Westminster and its extent in British policymaking in actuality. Background In order to understand the role of the British Parliament in the state's policies, it is important to explain its nature, its function and how it works. Westminster is divided into two chambers - the House of Commons and the House of Lords. The former is consisted of elected legislators while the latter is composed of the British peerage. Until the twentieth century, both of these chambers were crucial in the legislative process. The House of Commons - akin to many Democratic or Republican states' lower or congressional chamber - passes bills that are submitted to the House of Lords for approval. Reforms, however, clipped the power of the upper chamber and that it was reduced as a subordinate in the legislative process. ... And so, essentially, the most important variable that would ideally demonstrate the role of Westminster in policymaking is with regards to legislation. Bills can only be passed by the Parliament. For a detached observer, one that is exclusively familiar with the workings of the United States government, for example, would say that the power dynamics behind Westminster's governmental role is the same as that of the American Congress wherein policymaking is the responsibility of congressional members, committees and subcommittees. This is in addition to the fact that the body is empowered to control the government budget. They have the so-called power of the purse, a variable that, in itself could, ideally, influence and shape policies. It is, hence, surprising for outsiders to find that in actuality, Westminster's role in policymaking is considered insignificant or not as potent as that of the American legislature. For some sectors, this may also prove confusing because it is inconsis tent to the very ideals and the obvious mandate that the two chambers of the British Parliament stand for. Since Westminster is the highest authority in legislation and the laws that are promulgated out of it form part of the policies of the UK, how did it end up portraying a minor role in the policy network? The answer to this question lies in the complexities of the British political system, the very reason behind the fact that the legislative process is not all there is to making laws and decision-making. On Policymaking As has been raised earlier, Westminster has the power to legislate. But this does not necessarily translate into a particular capability to shape, much less influence policy

Personal and Professional Development Assignment - 5

Personal and Professional Development - Assignment Example During the time that I was working at the orphanage I learnt that those children were faced with a lot of challenges especially those who went to government school. They were looked down upon and thus they were not given equal chance with their peers to participate in co-curricular activities. They therefore felt side lined and felt out of place. I initiated a project that was to introduce football tournaments between the children homes in my home town. Due to my good interactions skills that had been nurtured at school, I was able to get sponsors who funded the project thus the children homes that participated were rewarded accordingly. After conducting an evaluation test, I found that the objectives for which the project was based on had been met. The children felt that they were part of the society as they had not been left out. Therefore this made my project to be successful.First unsuccessful story  During the last year my family faced a major financial crisis that had resulte d from my mother being laid off from duty. There was a scandal at their company that had been caused by the seniors since they had committed a fraud. All along we had been brought up by our mother and she was our only bread winner. Being the first born in our family and having completed school a while ago, I had to look for a job in order to help my mother fend for the family since my other siblings were still in school. The road to getting a job was not that smooth for me since there was competition from others who had completed schooling.

Argument of Value Essay Example | Topics and Well Written Essays - 1000 words

Argument of Value - Essay Example But, as the movie tries to portray, it never takes itself seriously. All the fun does not get lost owing to the apparent upheavals in the lives of the characters. There is a definitive degree of fresh air in the treatment of the main characters. From the very beginning, the viewer is drawn into the intricacies of the characters, their joys and life. Even in the deepest melancholy, there are streaks of hope and happiness. In that sense, this movie has veered away from the staple comedy movies which lack poignant humor, but cover it up with condescending laughter. The movie exposes the tumultuous underbelly of human emotions with a fine serving of humor. This movie is perched between a razor sharp psychological drama on one hand and comedy on another. The film has a very upbeat title, which suggests the likeliness of having a generic bent towards the creation of a happy atmosphere: that is not very serious. It has all the ingredients of a nice movie, with the creation of sequences that exude positive spirit. A hero who is full of faults, a heroine with very doubtful credentials, the Christmas streets, the snow flaked roads are a constant reminder of the impending festivities. Throw on top of that, a dance competition and a football game, the movie tries to cover all the bases for a happy Hollywood film. ... Robert De Niro has played a delicious role as the father, who is torn among different problems. He runs an illegal gambling racket out of his parlour. He has a very supportive mother, who keeps him company. However, he is supposed to stay away from his wife and has to visit a doctor. All of the characters are obsessed with something in their lives, with sports being a big obsession. There is a tradition of disruptive violence, as the crowd identifies the game with their identity. The father of the hero has been banned from appearing in the matches due to the bouts of rage, which were experienced while viewing the match. One of the central characters in the movie is a young widow called as Tiffany. She is a good looking woman who lives in the garage of her parent’s home. She is preparing for a dancing competition, with the help of the hero. They bond over a dinner and she agrees to help him reunite him with his wife. The strength of the film lies in the differential treatment b eing given to the generic comic situations. Although, there is a lot of pain in the lives of the characters, there is sense of joy that runs throughout the fabric of the film. There are a number of scenes that would be very difficult even in real lives, but the handling of the situations has rendered the scenes funny. Some of the examples of such scenes; as the fighting in the diner that spreads onto the street: and also among the crowd wearing the Halloween dress. The film goes over the edge at times, but never fails to maintain the humorous simplicity in the storyline. The narrative is contextual and also very relevant due to the essential foresight being provided into the human heart. The design of the story has been calibrated with a lot of alacrity, so as to incite the maximum level of

Deconstruction Essay Example | Topics and Well Written Essays - 1250 words

Deconstruction - Essay Example Allan Poe was born in in 1809, in Boston. His father was called David Poe while the mother was Elizabeth Arnold Hopkins. He lost his parents before he was three, and he had to move to Virginia to live with a wealthy tradesman called John Allan. John took Poe as one of his sons. Poe went to private school and conflicts occurred between him and his guardians when he decided to pursue literary works. He attended university of Virginia, but his dropped after the first year. He had gambling debts and his guardians refused to settle the debts. He joined the army and became sergeant major. He later quit the army. He wrote many literary works. He wrote many poems when he was in West point. His life became miserable when he became a heavy drinker and smoker. He went through many problems in his live that helped him write many poems. His nature of being a heavy drinker is even realized in â€Å"The Cask of Amontillado†. His literary talent would not have been that interesting if were no t the way his behavior and character influenced his writing. His love for alcohol helped him incorporating the abuse of alcohol in his work. A clear evidenced in â€Å"The Cask of Amontillado†, where he used Fortunato show the effects of heavy drinking in the society. The names that have been used in Poe’s work have some hidden meaning. ... The name sherry could be used to mean a titular amontillado. Therefore, in Italian, it represents a Montilla wine. Therefore, there is a â€Å"relationship between the way amontillado is produced and the way Montresor is using Fortunato† (Lewis, 179). Theory of deconstruction is further illustrated trough names used on the Poe’s work and some activities that are taking place. Meanings of the names that are used are related to the activities that take place in this literary work. One of the related activities includes the way Montresor is treating Fortunato and the process that is involved during the production of Montilla wine. â€Å"Montilla wine is manufactured by allowing yeast to grow in a pipe. This yeast can only grow under certain conditions. These conditions include leaving two spaces open on the cask that is used. The wine should be protected from oxygen in order to allow fermentation to take place. If oxygen is allowed to have contact with the yeast, the wine will not be produced with the required standards. This entire process should result in production of sweet wine† (Lewis, 181). This process of manufacturing mantilla wine is directly related to the process that Montresor uses in revenging on Fortunato. Montresor views Fortunato as his sweet pretender who has been induced by alcohol. Montresor’s behavior seems to be sweet to Fortunato. This is because his behavior has been induced with alcohol and he not able to realize Montresor’s intention. Montresor enjoys the alcohol effect on Fortunato since he knows he (Montresor) is going to achieve his goal. The alcohol content in Fortunato’s body prevents him from refining himself. Another contradiction in the story comes out when the