Monday, September 30, 2019

Tammy Larson and Mike Brennan

The case study involves a turn to turn talk between Tammy Larson and Mike Brennan on a female who had applied for a job as a housekeeper. The two were discussing the employee's profile. Details on her criminal conviction and drug possession raised a point of contention as the two were debating on whether to employ her. Currently, criminal conviction and drug possession is a subject that is put into considerations while selecting and promoting employees (Hayes ; Ninemeier, 2016, p.130). Ideally, employees ought to consider the nature or circumstances that led to these criminal offenses. Most of the people are pushed towards these offenses because of societal and psychological factors which they have little control over. Characters (functions or behaviors)As for this case, Tammy Larson and Mike Brennan should first identify the nature and circumstances which prompted these behaviors. From the analysis, they should be able to decide on the way forward. Besides, they should be able to identify the connection between a criminal conviction and the work they are supposed to do (Mattke, Van, ; Martsolf, 2014). For instance, substance use after work may have little effect on housekeeping roles. If the convictions involved issues like dishonesty and mistreatment, it would be hellish to employ the candidate. In order for the human resource to be fair and just, there exists the need to consult legal advice. This will help determine the best course of action (Hemming, 2015). Besides, Larson and Brennan ought to identify third parties and their statements on the employee's conduct. If I was the director, I would employ Stephanie. Management and leadership stylesThe federal law does not prohibit employers from seeking to know the criminal history of an employee. However, the same law prohibits employers from discriminating candidates on the basis of their criminal records (Mattke, Van, & Martsolf, 2014). Therefore, employers ought to consider laws and legal decision during the selection process. Some of the most important laws revolve around civil rights acts which determine employment decisions. For instance, we have Title VII of the Civil Rights Act of 1964 which dictates how employees should be treated following criminal allegations (Hemming, 2015). Criminal history and record are important because they help employers accurately decide on a responsible, reliable and safe employee. Therefore, I recommend employers to request their employees to list recent criminal activity.Recommendation Employers should identify a fair response to criminal records and allegations of those they want to the employee. Ideally, we are all humans, and thus we are subjected errs. Criminal records and substance use are social issues which are propelled by other factors; some of the factors are beyond our control (Hemming, 2015). However, employers ought to consider the legal advice and third-party consultancy before employing or dismissing an employee. For those individuals who have transformed, their criminal record should not pose the challenge of selecting them.Conclusively, Tammy Larson and Mike Brennan should consider many factors while deciding on the response. Most importantly, the selection should consider matching the organizational goals with the skills and qualifications of the employee. In this case study, the applicant has the traits required for the job opportunity; hence, her record should not be an obstacle towards being selected. However, the female applicant should be advised on the best approaches that will keep her away from criminal activities and substance use. Naturally, it is unfair to judge a person based on their records or past engagements. ReferencesHayes,  D.  K., & Ninemeier,  J.  D. (2016).  Human resources management in the hospitality industry.Hemming,  A. (2015).  Criminal Law Guidebook: Queensland and Western Australia. Melbourne: OUPANZ.Mattke,  S., Van,  B.  K., & Martsolf,  G. (2014).  Final report: Evaluation of tools and metrics to support employer selection of health plans.

Sunday, September 29, 2019

Externalities Of Water Pollution Environmental Sciences Essay

Hu Siyi, frailty curate of H2O resources, said that serious rivers pollution and the deteriorating aquatic ecology are â€Å" rather outstanding † and may endanger the state ‘s sustainable growing. This essay is speaking about the outwardnesss of H2O pollution in China. The outwardnesss mean the outside effects of activities, negative outwardnesss mean the bad consequence. The outwardnesss are created when societal costs and benefits differ from private costs and benefits. For illustration, a chemical works may dump waste into a river in order to minimise its costs. Further down the river, a H2O company has to handle the H2O to take unsafe chemicals before providing imbibing H2O to its clients. Its clients have to pay higher monetary values because of the pollution There are 4 chief solutions of authorities intercession of outwardnesss: First intercession is Regulation which means authorities regulations on how much pollution allowed. Second intercession is Widening Property Rights which means authorities gives those who are injured the right to action. Third intercession is Taxation which means authorities Shifts the cost to the consumers. The 4th intercession is permissions which means authorities determines how much of an outwardness should be allowed in society, divides those effects into units, so issues licenses which than be traded and sold between companies. First, the H2O pollution in China is extraordinary serious It is showed by China Daily, which was established in June 1981 and has the widest print circulation of any English-language newspaper in the state ( over 500,000 transcripts per issue, of which a tierce are abroad ) that 40 per centum of Chinese rivers were earnestly polluted and unfit for imbibing after 75 billion tones of sewerage and waste H2O were discharged in 2010. As the consequence the serious H2O pollution have increased the hazard of disease and malignant neoplastic disease. For Industrialization. In a figure of pollutants released by TVIEs ( township-village industrial endeavors ) have been linked to inauspicious wellness effects. In China overall, liver and tummy malignant neoplastic disease deceases have doubled since the 1970s, and are now the taking causes of malignant neoplastic disease mortality in rural China. China now has the highest liver malignant neoplastic disease decease rate in the universe. When TVIEs in more contaminated countries are examined, they show a general addition in malignant neoplastic disease mortality. Harmonizing to the figure of Cancer mortality from H2O pollution. It besides shows that malignant neoplastic disease mortality in contaminated countries has been steadily increasing over clip. Although diet and alcohol ingestion may play a function in the increased malignant neoplastic disease rates, environmental factors are besides relevant. ( Wu, 2006 ) . For agribusiness, in malice of the increased usage of fertiliser, merely 30 % of fertilisers applied to agricultural harvests are used efficaciously Despite the increased usage of fertiliser, merely 30 % of fertilisers applied to agricultural harvests are used efficaciously. As a consequence, nonpoint beginning pollution has been declining dramatically. Surplus usage of fertilisers, and the discharge of human and livestock body waste into the lakes of intensively farmed states are taking to lakes eutrophication ( overloading of H2O organic structures with organic stuffs and foods, which helped algal blooms and consume the O available for aquatic beings ) . The proliferation of algae has affected H2O supply beginnings and forced the impermanent closing of H2O workss, which are turning in fresh water. For illustration, Taihu, which is the 3rd largest fresh water lake in China, has become a major sink of agricultural and rural wastewaters generated in Jiangsu and Zhejiang Provinces. As a consequence Algal blooms are the factor of a far more serious menace to human wellness, More than 80 % of 480 algae samples taken from surface Waterss collected throughout China produced unwellnesss. and the inordinate usage of fertilisers besides a important issue of a far more serious menace to human wellness. Second, H2O pollution have caused serious H2O deficit and H2O deficit have given many negative outwardnesss to Chinese life and China ‘s economic system About Chinese life: Because of the big population the demand of H2O in China is extraordinary monolithic. With a population of 1.3 billion people, China consumes more than 600 billion three-dimensional metres of H2O every twelvemonth, and about three-fourthss of its functional H2O resources. It is reported by the Ministry of Water Resources that the mean per capita of H2O resources is merely 2,100 three-dimensional metres each twelvemonth, or about 28 per centum of the universe ‘s mean degree. About two-thirds of Chinese metropoliss are water-needy, while about 300 million rural occupants lack entree to safe imbibing H2O, taking to a national H2O deficit of over 50 billion three-dimensional metres on norm every twelvemonth ( Hu, 2012 ) On the other manus. When the demand of H2O is more greater than the supply of H2O in China the monetary value of H2O in China will growing somewhat. In north of China H2O deficit is more serious than other topographic point in China, so the monetary value in North of China is higher than others, as a consequence people who live in North of China should pay more money on H2O, the high monetary value of H2O will add force per unit area to the people and people will hold less money to purchase or devour goods and services, this phenomenon give negative effects to China ‘s economic system. Meanwhile, Uncountable industries in China besides consume much H2O. For illustration, Beijin, which is a 1 of the biggest metropoliss in China, which has several H2O job consumed 3.06 A- 108 m3 H2O in 2008. Consequences from fake scenario illustrated that, due to the utmost H2O scarceness state of affairs, industry in Beijing would still confront a serious H2O shortage job even with a really optimistic scenario for the hereafter It is said by Hu who is the president of China that the H2O deficit will acquire worse in the hereafter, Unless we take decisive and mandatory steps to halt the over-exploitation activities, . So Chinese authorities chief usage Regulation, which means authorities regulations on how much pollution allowed to work out H2O deficit. It is announced by local authoritiess that Adding to the state ‘s H2O safety force per unit area are ambitious development programs In 2012, which experts say will necessarily greatly increase H2O demand for industrial and residential usage. Furthermore the State Council, or China ‘s cabinet, unveiled a guideline on Thursday to modulate the usage of H2O under â€Å" the strictest standards, † cresting the maximal volume of H2O usage at 700 billion three-dimensional metres by the terminal of 2030 and China will work to maintain its entire volume of H2O usage below 670 billion three-dimensional metres in 2020.. Besides, the authorities will dispatch its supervising over development of belowground H2O, farther protect beginnings of imbibing H2O, and reconstruct the aquatic ecological system by presenting water-use licences and other steps. ( Hu, 2012 ) The cardinal authorities has planned 4 trillion kwais ( $ 634.9 billion ) of investing in H2O resources preservation undertakings over the following 10 old ages, of which 1.8 trillion kwais will be invested during the 2011-2015 period. Now China faces a tougher state of affairs in H2O resources in the hereafter as demand increases amid the state ‘s rapid industrialisation and urbanisation, an functionary said Thursday at a imperativeness conference, China besides get in problem because of H2O deficit. The Chinese authorities has already made a committedness to salvaging the state ‘s quickly depleting H2O resources. but how to set up a legislative and regulative mechanism, every bit good as a policy model to steer the dearly-won attempts of H2O pollution control is besides a large challenge for Chinese authorities

Friday, September 27, 2019

Nickel and Dimed by Barbara Ehrenreich Essay Example | Topics and Well Written Essays - 2250 words

Nickel and Dimed by Barbara Ehrenreich - Essay Example From the discussion it is clear that  today, the market may be thought to be saturated. Generally social constructs are the views that people have on us, and how people describe us. The idea behind social cosntructionism is that people hear or experience these views over and over, and this makes them believe these views or have a picture that depicts these stories as being true. A million man march reflects that what the people march for is not well known by majority of the people in the march but he people seek to change this situation using their own social construction that reflect whom they really are.  As the study highlights that  the book Nickel and dimed by Ehnrenreich clearly starts on a note that portrays a well defined case of critical theory concerning workers and how they are being treated as well as their working conditions. There is a great contrast between Lampham who takes the writer for a lunch for about $30 at a â€Å"country style place† the writer an d Lampham are in deep reflection of how four million women have to live on the wages that are paid to the unskilled with a salary for about $6 and $ 7 per hour, with about 4 million women who are not literate and who are in the market looking for the lowly unskilled lowly jobs to make a living or to sustain themselves.  The eschewing divisions in the society in the book Nickel and Dimed by Ehnrenreich are clear, and by large magnitude have gone deeper to portray inhuman and a cruel world where the illiterate have to endure cruel wages and mistreatment to make a living.

SIMULATION GAME Essay Example | Topics and Well Written Essays - 3500 words

SIMULATION GAME - Essay Example In addition, the report would outline and provide a brief overview of the industry, particularly the shoe manufacturing industry, within which the company operates. The strategic direction provided for the same would discuss whether the strategic direction matched the outcomes. Finally, the report will outline on the strategic principles, based upon which the company operates and key learning points in the study. To assess the competitive strategy of Black Bottoms in the years 10-15, there is a requirement to analyze the ‘Competitive Intelligence Reports’ (CIR), which will provide a comprehensive understanding of the company’s market scenario. The diagram provided below illustrates that the price, S/Q Rating, Models Offered, Free Shipping, Advertising, Celebrity Appeal, Online Orders, Pairs Sold and Market Share for Black Bottoms. The diagram above clearly displays the scenario of all the three segments for the year 2015 in the North American footwear market. Furthermore, the company has been unable to create a global differentiation strategy, as provided statistics reveals that the company’s S/Q rating, celebrity endorsement and additional services such as free home delivery were falling behind its competitors. Hence, there is no such evidence on how the company has used a single strategy to gain a competitive advantage. The data available from other nations reveal a similar result, wherein, the company has not used any specific competitive strategy. Hence, it can be said that the company does not acquire any consistent competitive strategy. As it can be seen that the company has been redesigning its price structure and differentiating factors, it can be said that Bell Bottoms prefers to reinvent the strategies every year in order to pursue the upcoming opportunities in relation to the market forecast s. Hence, it can be said that the company tries to gain its competitive advantage by updating its

Thursday, September 26, 2019

Reguirements Modeling Assignment Example | Topics and Well Written Essays - 750 words

Reguirements Modeling - Assignment Example BPM can also be referred to as Business process management or a holistic management approach. It aligns a company’s business processes with clients’ needs. BPM improves the business’ efficiency and effectiveness through working towards integration with technology, innovation and flexibility. Therefore, BPM can be referred to as a process enhancement process. It is said that BPM helps organizations to be more effective, efficient and also more capable of making changes in an organization compared to a traditional hierarchical management method. These business processes also have a large impact on the costs and revenues of an organization. When Business process management employs a managerial approach, it views processes as strategic assets owned by an organization. According to BPM, these processes must be understood, improved and managed in order to deliver quality services and services to clients (Acharya 127). Data flow diagrams represent the flow of information and data in an information system graphically. This enables a person to denote the processes in an information system from the data’s viewpoint. Data flow diagrams also help a person know how a system operates, the system’s accomplishments and how to implement the accomplishments. Data flow diagrams are also used in designing information-processing systems by system analysts. DFD is also used in commence of a business process modeling so as to lay down the functions which a system has to carry out. It also helps to focus on information exchanges between processes and also show a relationship between those functions. Unified Modeling language is a consistent modeling language in software engineering. UML includes a collection of graphic notation techniques. These strategies help in the making of visual models of software-intensive systems that are object-oriented. Unified Modeling

Wednesday, September 25, 2019

Cons of Cosmetic Animal Testing Assignment Example | Topics and Well Written Essays - 1250 words

Cons of Cosmetic Animal Testing - Assignment Example nt victory for both animal rights activists and the very animals, the European Union (EU) in March 2013 (The EU Animal Testing Ban, n.d.), imposed a ban on the sale of cosmetics and/or cosmetic ingredients used in animal testing (Cosmetics and Household-Product Animal Testing, n.d.). That marketing ban meant that companies who intended to trade within the EU, the world over, had no choice but to abandon cosmetic animal testing. The European Union further pointed to the abolishment of all activities relating to testing of products and ingredients that are acquired or sold within the EU. However, interested firms can continue carrying on animal experiments provided they are outside the EU and the products used are not sold within the EU. However, it is not easy for such firms to sell products in the global market due to various restrictions imposed by other countries. For instance, the Chinese government demands samples for a variety of thorough animal tests before allowing any sales i n China. Prior to that decision, there were numerous protests vented by People for The Ethical Treatment of Animals (PETA) activists through emails, public protests and phone calls. Through PETA’s scientific expertise and funding, China is also making enormous strides in steering away from cosmetic animal testing and will soon approve non-animal tests to replace cosmetic tests. In the same spirit of conservation, Israel and India have also banned the practice. The ban imposed by the Indian government is temporary, but there are measures to establish a permanent one. In a contrasting scenario, the United States have not taken the same steps. It is unbelievable that researchers persist with animal experiments for cosmetics despite the presence of reliable non-animal tests. Recently, research experts have proven that manufacturers can use 3-D human cell generated tissues to measure how long a chemical takes to burn the rabbit eye’s cornea. The chemical is dropped by the researchers

Tuesday, September 24, 2019

Medieval Philosophy Term Paper Example | Topics and Well Written Essays - 1250 words

Medieval Philosophy - Term Paper Example Examining the writings of Augustine and Aquinas provides textual comparisons in understanding how the two philosophers diverged in their opinions. Augustine The discussion that Augustine held about the Academicians shed light on his point of view where truth was concerned. He relates to his reader, within his letter to Romanianus, that the Academicians seem to believe that there are absolutes and that the truth is a defined place, although they do not know where that place exists. He suggests that moving away from the Academicians and towards philosophy reveals that the truth is defined by the fact that the truth is truth, that it moves through the subject and rests in places where all can discern that it is true, a common place where wisdom is attained. In finding the center of truth, Augustine believes that it is through the study of philosophy that truth can be approached, but not through listening to those who would say that they know the truth definitively without knowing truth. Cicero states in Academica 2.10.32 that â€Å"[The Academicians] hold that something is plausible and in a way â€Å"truth like†, and that they employ this as a guide both in the conduct of life and in [philosophical] investigation and discussion† (Augustine 37). He goes on to discuss Zeno by saying â€Å"He contended that nothing can be perceived except what is true in such a way that it can be distinguished from the false by a dissimilarity in their marks, and that opinion should not enter the mind of the wise man† (Augustine 40). His purpose in going against the Academicians can be summed up in this statement that Augustine makes â€Å"your Academicians should be likewise laughed at, since they say that in this life they follow something truth like, although they do not know what the truth is† (Augustine 44). The Academicians sought the truth, but did not claim to have found it. Augustine discusses that wise men had, previous to the Academicians, been wise because their culture determined that they knew the truth. Academicians, on the other hand, felt that a wise man continued on a search for the truth, but did not ever claimed to have found it. Augustine states that â€Å"Reason, then†¦shows you that a wise man is the kind of person who is not ignorant of wisdom† (Augustine 60). Augustine makes the argument that human beings can find wisdom and that they can discern the truth. He suggests that having knowledge that determines the truth is in the purview of the wise man. Without this accession, there can be no such thing as a wise man. This argument, then, is suggesting that rational thought is in defining what is true. He argues against those who would suggest that it is not possible to ’know’ or to assess ’truth’. In understanding, the human being shows that he has a capacity beyond animals. In his discussion with Evodius, he shows that the human sense of rationality comes from being abl e to understand beyond the inner sense. The inner sense can discern existence, but human reason can understand that there is existence. He moves through his discussion of understanding to explain wisdeom, then back to truth. He states â€Å"

Monday, September 23, 2019

Distinguish the mnemonic functions of the hippocampus, striatum and Essay

Distinguish the mnemonic functions of the hippocampus, striatum and amygdale - Essay Example Hippocampus can be related to limbic system of the brain and it has a significant role in not only maintaining long term memory but also in spatial navigation. These roles of hippocampus make it a structure of critical importance for a brain. When we talk about hippocampus’s critical role in the brain, we should also mention its importance in the formation of factual and autobiographical memories in the brain of a human or a mammal. Hippocampus can also work as a gateway for the memory (Cohen & Eichenbaum, 1993). It is in a sense that all new memories pass through this gateway before getting into the permanent storage area of the brain. If we talk about the structure of hippocampus, we can call it a paired structure which is formed so that mirror image lies on both sides of the brain (Matthews, 2000). Damage to this critical structure of the brain can lead to a very detrimental disease which is anterograde amnesia. In anterograde amnesia, new memories can not be formed by the brain because it loses the ability of formation of any sort of new memories in the brain (Traub & Miles, 1991). In such case, older memories don’t get affected and they are kept safe in the brain. The affect is only on new memories. When a person gets damage to the hippocampus of the brain, he loses the ability to store new memories but all those memories which have a relation with his past, are kept safe in the brain. But it is not the case with skills and abilities of a person. Skills don’t get affected by the damage to hippocampus. Even new memories which are related to the skills and habits of a person can be formed without a proper functioning hippocampus in the brain (Buzsaki, 2006). There are various researches which are being made these days by the researchers in the medical field in order to determine those memories which don’t get affected due to improper functioning of hippocampus. These researches are

Sunday, September 22, 2019

Pricing Strategies Essay Example for Free

Pricing Strategies Essay When designing a marketing plan each and every component is of prime importance. The marketing plan basically consists of four components or as we call them, the four P’s. The product, price, packaging and the place all combined together can make the product successful. They are all interdependent. The Segway is a new invention in the market and is the first of its kind product. Products of this sort are priced high because it is not long before competitors enter the market and take away the profit share for the firm. Pricing is important because it helps position the product in the minds of the consumers; it forms an image which helps attract the target market. If the product is overpriced than the target market will not purchase it and the expected sales level will not be achieved, the same will happen if it is underpriced. The main issue with the pricing of Segway was that the product was catering to a different sector and this sector could not afford to spend so much on the piece of transportation. The price at $4500 was considered to high for a product such as this (PistonHeads. com, n. d). One of the reasons for the failure of Segway in the early years was the price that the company was charging. Customers did not see why the product was priced so high and the utility that they would gain out of it. The market that the product was catering to is the people who walk to work; they either do it to get the exercise or don’t have money to spend on taxi fare. For those who want to exercise, buying the Segway would be useless as the whole point of exercise would be lost and for the others, the product was too expensive a buy. Also, initially when the product was launched, the market for such a technological product was at its initial stages. The concept did not exist and people did not get used to idea. Today when gas prices are rising, people would consider this option of transportation. The sales in recent times have been growing as people can not afford to put gas in their cars. From this we can conclude one thing and that is, when purchasing an item there are many external factors that influence the customers decision. People are getting used to the idea of spending this amount as they realize that maintenance of a car would cost them the same amount. (Whiteman, 2008) The marketing strategy that I would have adopted would have been different, assuming that it did not cost much to product the product. I would have priced the product high but not this high; initially it would have been around the $3000 margin but after a few months this would have come down and more versions of the same product would have been introduced. Also, the best way to market this product was to let the target market demonstrate it and like every other vehicle, take it for a test drive. Once people use it they would realize the ease of use that the Segway would give them. This is an invention and the customers don’t realize its need until or unless they have I in their lives, just like the microwave oven or the cell phone.

Saturday, September 21, 2019

Banking and Finance Essay Example for Free

Banking and Finance Essay Introduction The automated teller machine (ATM) is a machine that acts as a teller in an institution by receiving and issuing money to and from the ATM account holder or user. The growth and evolution of at ATMs was not only due to, but rather as a result of general global concentration in the technological revolution. This came due to challenges of multiple bulk of daily complex information that arise from existing difficulties like; increase in competition, increase in customer’s demand for both services provision as well as efficiency , expansion due to increase in demand and all the likes just to name a few. The ATM system used by micro financial institutions today is an inherited system from banking system therefore brought in efficiency in different micro financial institutions in terms of speed, data processing and storage. Thus, it brought in enormous improvement in queuing in institutions in use of the ATMs. Despite all the merits of ATMs, customers still bring up complains on the demerits of the system such as; breakdown of ATMs, long queues at the ATM service point, retention of customers cards. In this light, this research entails to find out why all these cries after all the goods incurred in the system. 1.1 Background of the study. 1.1.1 Historical background. The history of micro financial institutions can be trace as far back as the 1880s when the theorist Lysander Spooner was writing over the benefits of from small credits to entrepreneurs and farmers as a way of getting people out of poverty. Today, the use of the expression ‘’micro financing’’ has its root in the 1970s when organisatons were sarting and shaping the modern industry.At that time,many microfinance ini tiatives introduced many new innovations into the sector.Many entreprises began experimenting with loaning to the under served people. The main reason why micro financing is been traced back to the 1970s is that, the programme could show that people can be relied on to pay their loans and that it’s possible to provide financing services to poor people through market based enterprises without subsidies.

Friday, September 20, 2019

The Structure And Function Of Antibodies

The Structure And Function Of Antibodies There is a type of white blood cell called plasma cells which are produced in the bone marrow as B cells then mature into plasma cells, these produce antibodies. Antibodies are either attached to cell surface membranes or secreted as soluble glycoproteins. Antibodies are large Y-shaped proteins which the immune system uses to neutralise and lead to the elimination of foreign bodies. Antibodies are glycoproteins, due to carbohydrates binding to amino acid residues on the polypeptides; these are composed of four polypeptide chains, of which, two heavy chains and two light chains to form the complete antibody. There are small regions at the tip of the antibody called the antigen binding sites; this region is hugely diverse due to random genetic mutations leading to amino acid chain variations causing a hyper variable region that allows it to bind to many different antigens. Adaptive immunity is the immune response that involves antibodies. It is undeveloped at birth, and is the response of the lymphocytes to specific antigens. Antibodies are heavy globular plasma proteins that belong to the family of proteins, immunoglobins. They have sugar chains attached to some of their amino acids making them glycoproteins. Each of their heavy chains has two regions; the constant region (carboxyl-terminal end) for biological effector functions and the variable region (amino-terminal end) for antigen recognition. The light and heavy chains forming the antibody have inter and intra chain disulphide bridges which hold the chains together, the quantity of bonds varies between different antibody molecules. They have a hinge region where the arms of the antibody molecule form a Y-shape; it is named the hinge region due to segmental flexibility at this point. Antibodies have a massively variable antigen binding site due to the different heavy and light chain amino acid configurations. After birth the only antibodies present in the body are the ones passed over by passive immunization from the mother. Early active immune system antibodies develop in the first few years of life. The main function of each antibody is to specifically bind to one or few similar antigens (foreign molecules). The structure of antibodies relates to the three main functions; activity, versatility and specificity. Antibodies prevent pathogens from damaging or entering cells by binding to them. Antibodies stimulate macrophages to engage in the removal of pathogens and also stimulate other immune responses. They bind to various cells such as phagocytes, lymphocytes, platelets etc. this binding leads to the activation of these cells to perform immune functions such as antibody production and phagocytosis. Antibodies can also bind together when theyà ¢Ã¢â€š ¬Ã¢â€ž ¢re bound to pathogens, linking them together and stopping the pathogens from moving or causing damage. The function of an antibody binding to an antigen is provided by the structure of the variable region which has the antigen-binding site (known as the Fragment antigen-binding fragment made from one constant and one variable region); the variable amino acid configuration allows a diverse possibility of specific antibodies to bind with antigens found on foreign bodies. The Fragment crystallisable region at the base of the antibody triggers the appropriate immune response for the situation, for example clumping together (where the Fab fragment joins with the Fc region of another antibody) or triggering the release of histamine in an allergic reaction. There are five different antibody isotypes in humans; IgG, IgA, IgM, IgD, and IgE. IgG is the main antibody in the blood however it can move throughout the bodyà ¢Ã¢â€š ¬Ã¢â€ž ¢s tissue. It forms the majority of the active immune antibody response to pathogens. It is also able to cross the placenta during pregnancy, passing on passive immunisation from the mother to the developing foetus. IgA is present in bodily fluids in entrances to the body, such as tears, breast milk, and saliva and also in the respiratory tract, urogenital tract and digestive tract, and its function is to prevent colonisation from pathogens. IgM is either present on B cell surfaces or in a soluble secreted form (in which is the largest antibody due to its pentamer form) in the blood and it is involved in the early immune response and can kill pathogens. IgD is the antigen receptor on B cells not already exposed to antigens. IgE is involved in the allergic response to foreign bodies and releases histamine when bound to allergens. The B cell will produce these various isotypes at different stages of its development. Antibodies are secreted by a type of white blood cell called a plasma cell. Antibodies can occur in two physical forms, a soluble form that is secreted from the cell, and a membrane-bound form that is attached to the surface of a B cell and is referred to as the B cell receptor (BCR). The BCR is only found on the surface of B cells and facilitates the activation of these cells and their subsequent differentiation into either antibody factories called plasma cells, or memory B cells that will survive in the body and remember that same antigen so the B cells can respond faster upon future exposure.[4] In most cases, interaction of the B cell with a T helper cell is necessary to produce full activation of the B cell and, therefore, antibody generation following antigen binding.[5] Soluble antibodies are released into the blood and tissue fluids, as well as many secretions to continue to survey for invading microorganisms.

Thursday, September 19, 2019

Kindred :: essays research papers

Kindred Writing Activity The fire, page 36: â€Å"I could literally smell his sweat, hear every ragged breath, every cry, every cut of the whip. I could see his body jerking, convulsing, straining against the rope as his screaming went on and on. My stomach heaved, and I had to force myself to stay where I was and keep quiet.Why didn’t they stop!† In the middle of the night, four white men storm into a cabin in the woods while four others wait outside. The cabin belongs to Alice and her mom. The four men pull out Alice’s father along with her mom, both are naked. Alice manages to scramble away. The men question Alice’s father about a pass, which allows him to visit his wife. Her father tries to explain the men about the loss of the pass but the men do not pay any attention to him. Instead they tie him to a tree and one of the white man starts to whip him for visiting his wife without the permission of Tom Weylin, the â€Å"owner† of Alice’s father. Tom Weylin forbid him to see his wife, he ordered him to choose a new wife at the plantation, so he could own their children. Since Alice’s mother is a free woman, her babies would be free as well and would be save from slavery. But her freedom â€Å"status† does not stop one of the patroller to punch her in the face and cause her to collaps e to the ground. Meanwhile, you can hear the noise of the whip clutching against the back of Alice’s father. He forces himself to stay quiet under this unbelievable pain and humiliation in front of his family. His face shows the pain and he is sweating but still no sound, until he breaks down and starts to beg for forgiveness. After a while, the white man who happens to be a patroller stops whipping him and with the help of the other patrollers he unties him from the tree and turns him around and ties his hands in front of him.

Wednesday, September 18, 2019

Samuel Langhorne Clemens Essay -- Essays Papers

Samuel Langhorne Clemens Samuel Langhorne Clemens or commonly known as Mark Twain was an American writer and humorist. Twain’s writing is also known for realism of place and language, memorable characters, and hatred of bad faith and oppression. Clemens was born in Florida and then later on moved to Hannibal, Missouri, a Mississippi river port, when he was four years old. There he received a public school education. After his father died in 1847, Clemens was assisted to two Hannibal printers, and in 1851 he began contributing sketches to his brother Orion’s Hannibal Journal. Before long he was a master printer in Keokuk, Iowa; New York City; Philadelphia, Pennsylvania; and other cities. Later, Clemens was a steamboat pilot on the Mississippi River until the American Civil War brought an end to travel on the river. In 1861 Clemens served briefly as a volunteer soldier in an irregular company of Confederate cavalry. Later that year he accompanied his brother to the newly created Nevada Territory, where he tried silver and gold mining. In 1862 he became a reporter on the Territorial Enterprise in Virginia City, Nevada, and in 1863 he began signing his articles with the assumed name â€Å"Mark Twain,† a Mississippi River phrase meaning â€Å"two fathoms† deep-safe water for a steamboat. After moving to San Francisco in 1864, Twain met the American writers Artemus Ward and Bret Harte, who encouraged him in his work. In 1865 Twain modified a tale he had heard in the California gold fields; within months the author and the story , â€Å"The Celebrated Jumping Frog of Calaveras County,† had become national sensations. In 1867 Twain gave a piece of his mind in New York City, and in the same year he visited Europe and the Holy Land. He wrote of these travels in The Innocents Abroad (1869), a book burlesquing those aspects of Old World culture that impress American tourists. In 1870 he married Olivia Langdon. After living briefly in Buffalo, New York, they moved to Hartford, Connecticut. Much of Twain’s best work was written in the 1870s and 1880s in Hartford or during the summers at Quarry Farm, near Elmira, New York. Roughing It (1872) recounts his early adventures as a miner and journalist; The Adventures of Tom Sawyer (1876) celebrates boyhood in a town on the Mississippi River; A Tramp Abroad (1880) describes a walking trip through the Black Forest of Germany ... ... not disappear after Emancipation, but instead were reenacted or reaffirmed, with even more rigorous definitions of whiteness, during the nineties when anti-black repression took multiple forms, legal and extralegal" (87-88). Twain's novel hints at both the racism of slavery as well as the racism of the world contemporary to his writing. In Latin America and the British West Indies, specific names were given to specific levels of miscegenation. Mulatto, or 1/2 white; sambo, or 1/4 white; quadroon, 3/4 white; mestizo, 7/8 white. Twain plays with these ridiculous levels of "whiteness" by making Roxy 1/16 black or 15/16ths white. Daring to be different Twain did not stop at mocking the racism of the world surrounding him but also attacked the false pride and self-importance that he saw in humanity. Never bowing before anyone Twain stepped up to the plate and wrote Bibliography: Clemens, Susy. â€Å"Papa, An Intimate Biography of Mark Twain.† 1985. Eaton, Jeanette. â€Å"America’s Own Mark Twain.† 1958. Hargrove, Jim. â€Å"Mark Twain, The Story of Samuel Clemens.†1959. Twain, Mark, ed. Charles Neider. â€Å"The Autobiography of Mark Twain.† First copyright 1917, this edition 1959.