Wednesday, November 27, 2019
Emerging And Re-Emerging Infectious Diseases Example
Emerging And Re Emerging And Re Emerging and Re-Emerging Infectious Diseases Emerging and Re-Emerging Infectious Diseases The literatures selected for this paper were four: Aziz (2013), CDC (2014), Mitchell et al. (2014) and Walters & Zuckerbraun (2013), and all of them discussed this issue of emerging and re-emerging infectious diseases in a hospital setting. The article by Aziz (2013) offers information on the recent guidance for managing C difficile infection plus how nursing care can be optimized so patients can be offered care in a safe and clean environment. CDC (2014), on the other hand, offers updated info concerning Ebola virus disease EVD to clinicians working in U.S. health clinics and hospitals, with a main purpose of helping them prevent further spread of the disease while working on Ebola patients. Mitchell et al. (2014) discuss the duty of the nurse in each of these prevention and control CDI such as early instigation and maintenance of control and prevention methods, appropriate antibiotic use, and education, high standards of environmental cleanliness and surveillance. Finally, Walters & Zuckerbraun (2013) also offers guidance for managing C difficile infection plus how nursing care can be optimized so patients can be offered care in a safe and clean environment.Such articles imply that nurses will be better equipped to tackle infections that emerge and re-emerge in the hospital setting when they trying to deal with patients. However, nurses will be required to play their part and undertake further training in order to be in a better position to tackle such kinds of infections. The role of BSN nurses in preventing and managing nosocomial infections is to utilize the knowledge and skills of nursing practice and can facilitate patient recovery whereas minimizing complications linked to the infections. They can give other nurses basic strategies they need for assuring positive patient outcomes for such patients.ReferencesAziz, A. (2013). Nursing management of Clostridium diffici le infection. Nurse Prescribing, 11(1), 21-27.Centers for Disease Control and Prevention (CDC). (2014). Ebola virus disease: Information for healthcare workers and settings. Retrieved from cdc.gov/vhf/ebola/hcp/index.html?s_cid=cs_4318Mitchell, B. G. et al. (2014). Clostridium difficile infection: nursing considerations. Nursing Standard, 28(47), 43-48.Walters, P. R. & Zuckerbraun, B. S. (2013). Clostridium difficile infection clinical challenges and management strategies. Critical Care Nurse, 34(4), 24-34.
Saturday, November 23, 2019
Explain how the electron microscope has affected our knowledge of cell form and structure Essay Example
Explain how the electron microscope has affected our knowledge of cell form and structure Essay Example Explain how the electron microscope has affected our knowledge of cell form and structure Essay Explain how the electron microscope has affected our knowledge of cell form and structure Essay Electrons are generated in an electron gun, which applies a high voltage of about 100,000 volts through a filament called a tungsten filament. The filament is heated to above 3000 degrees Kelvin, which is roughly 3273 degrees Celsius. Applying an increasing negative voltage to a cathode assembly, which is located just above an anode plate, accelerates the electrons. The anode plate has a tiny hole in its centre, the electron beam is sent through this hole creating a very concentrated beam of electrons. This beam is focused using magnetic coils that act like the condenser lenses that you find on a light microscope. The specimen is on a plate just above a second magnetic coil, which acts as an objective lens. The objective lens resolves the structure and magnifies it slightly. Focusing the specimen can be achieved by altering the electric current through the lens. More magnetic coils act as projector lenses, which enlarge the image. All specimens in electron microscopy are placed in a vacuum, this means that all specimens must be dead. All specimens must be in a vacuum chamber because the electrons would be deflected by particles in the air and so would not give a clear picture. (A sheet has been attached at the back, which shows the structure of an electron microscope). The transmission electron microscope takes a section of a specimen and passes electrons through it. But first the specimen must go through 5 stages of preparation. 1. Fixation and dehydration using alcohol. 2. Embedding in resin which is hardened in an oven. 3. Sectioning using an ultramicrotome and a glass knife. 4. Mounting on a copper grid to give support (electrons cannot pass through glass). 5. Staining using heavy metal stains to improve contrast. Another way of preparing slides is to use the freeze fracture technique. The specimen is frozen using liquid Nitrogen. The specimen is then hit with e chisel, which causes the specimen to break along the line of least resistance. This way allows surface detail to be seen. Not all specimens need to be sectioned, viruses and large molecules are thin enough to be examined without needing to be sectioned in any way. These stages may induce artefacts to be present in the electronmicrograph. Artefacts are features which can be observed in cells prepared for microscopy which do not appear in real life, they can be caused by disruption in the cell. The image can be viewed on a fluorescent screen. The image is black and white unless the specimen has been stained to produce a colour picture. Micrographs are prepared by allowing the electrons to fall on photographic paper. Scanning electron microscopes only produce a scan of the surface of a cell, it cannot penetrate the interior of the cell. The electrons are bounced of the specimen instead of passing through it. This procedure will give a 3D image of the specimen. This can be useful when looking at virus or bacterial cells. If we wish to study a particular organelle, we do not have to study the entire cell under a microscope to do so, using cell fractionation and centrifugation, we can separate the different organelles from each other and so we can study them separately. Cell fractionation allows us to view the activities of organelles without interference from all other reactions taking place in the cell. First the tissue is finely chopped up and then it is placed in a cold isotonic buffer so that the cells and organelles are distorted as little as possible. The cells are then broken open using a homogeniser. A homogeniser is a mini blender that is able to fit down a boiling tube. The finished product once the tissue has been homogenised is called homogenate. The homogenate is then filtered to remove any cells, which have not been broken open. The homogenate is transferred to a centrifuge. Centrifugation is used to separate different organelles from each other. The cell homogenate is spun at different speeds and times. As the homogenate is spun, the parts of the cell begin to separate out to produce a pellet of components in the bottom of the tube. The homogenate, which does not become part of the pellet is called the supernatant. The supernatant can then be poured off and the contents spun again at increasing speeds and times to cause more organelles and cell components to separate from each other. The nuclei will separate out first, followed by mitochondria, Lysosomes, Peroxisomes, Microsomes, ER and ribosomes. These specimens can be prepared as normal and studied using electron microscopy When studying cells and their components, electron microscopes are preferred to light microscopes for many different reasons. Light microscopes can only be used if the magnification is under x1500 whereas an electron microscope can magnify images will above x1500. Electron microscopes have a resolution power of 2nm, light microscopes can only distinguish two objects apart if they are 2?m apart. If you were to increase the magnification of an image on an electron microscope, the image would become clearer, but if you did the same with a light microscope, the image would blur. Because of these three facts, the only things visible with a light microscope are nuclei and cell walls and membranes, electron microscopes give us the ability of seeing all organelles, which make up a cell. Without these advances in microscopy, we would not be able to see the ultra structure of cells, or even know if it existed. Nor would we know what purpose they had within the cell. We would not know that mitochondria have a double membrane, with the inner one folded into cristae. Or that it is the site of ATP synthesis and contains its own circular strands of DNA. Granted we may have been able to come to the conclusion that the nucleus controlled the cell reactions, but we would not know what carried out those reactions. If we didnt have electron microscopes we would not know that bacteria and single celled organisms are different from other cells. Without electron microscopy, we would not know what happened to obsolete cells, they would appear to vanish! Because of this technology we now know a great deal about what happens within a cell, and what role cells play in our lives.
Thursday, November 21, 2019
Marketing Essay Example | Topics and Well Written Essays - 750 words - 24
Marketing - Essay Example Carpenter (2004) highlights the definition of marketing given by American Marketing Association in his article. Marketing is defined as "an organizational function and set of processes for creating, communicating and delivering value to customers and for managing customer relationships in ways that benefit the organization and its stakeholders" (Carpenter, 2004). Carpenter means that marketing deals with customer relationships and the process involves creation of products, their communication and then their delivery to the customers. Donald (2004) defines marketing as not an advertising campaign but some function that deal with consumer touch points, brand values and attributes that are communicated. Therefore, for Donald, marketing is not just advertising but a whole procedure that involves the consumers, the product and its features. Marketing covers all the point mentioned by Donald. Marketing is done about products for consumers so that the products can be availed by consumers because of the attributes and brand values of the products. Marketing is an important function of an organization or business setup and this factor cannot be negated that the businesses operating all around the globe are able to reach to the general public by means of their marketing functionalities. Marketing is an activity that enables all the businesses to make the people know what is in their hands for the people and how can it fulfill the needs of people. Planning is also very crucial for the success of a marketing campaign. Through marketing plans, the organizations are able to attain information about their competitors, strengths and weaknesses of their products and much more (Pophal, 2000). Every day we see unlimited advertisements in the newspapers, on the internet, on television, in the form of banners and by many other means in which, we notice that the products or services that are monitored are
Wednesday, November 20, 2019
Joint Venture entry mode of Marks and Spencer in China Essay
Joint Venture entry mode of Marks and Spencer in China - Essay Example This research will begin with the statement that entering into a new market has been commonly accounted as one of the major challenges faced by companies seeking the benefits of internationalization market expansion. In its course to diversify in the global plethora, the company needs to deal with many barriers including cross-border trade regulations, cultural paradoxes and various other socio-economic factors that are deemed to influence business operations in the targeted host country. Contextually, entering into the market of China also posed considerable challenges to Marks & Spencer (M&S), which is a renowned British multinational retail chain. Critics have thereon argued that it is fundamentally owing to lack of market understanding and appropriate strategies adopted by companies to mark its failure in Asian countries like China. Several challenges and problems encompass the entry of M&S in the market of China. With the opening of their first outlet in the Chinese market, the company experienced a dip in its performance, which was accounted as considerably lower than the expected level in the Chinese market. The outlets opened by M&S, at the initial phases of its operations in the Mainland China, failed to satisfy the needs of the Chinese local customers owing to the company’s lacuna to identify customers’ preferences in the market and offer services accordingly. For instance, the M&S stores were unable to provide garments of smaller sizes, as preferred by the customers in China. (Wood, 2012). Reportedly, the supply chain of the company was also lacking its usual effectiveness, which further inhibited the reputation of the company in the Chinese market, at its introductory phase. Additionally, it was also known that the management of the retail chain was implementing its strategic experiences gained from its operations in Hong Kong, irrespective of the fact that the consumer buying behaviour are found to be considerably distinct in these two regions. This again depicts the lack of market survey of the company taking into account the tastes and preferences of customers in the host country (China Retail News, 2009). In addition, the decisions taken by the company for not collaborating with any of the local firms in China, i.e. ignoring the benefits of JV also barricaded the utmost efficiency of its strategies by restricting the cooperation of local firms to a certain extent. It was thus considered as a mistake made by M&S, which retarded its smooth entry in the Chinese market. However the company focused on concentrating on its size and range of services offered to the Chinese customers as its major Unique Selling Propositions (USPs). Subsequently, the first shop of the company was opened in the Mainland and was propounded to be one of the biggest shopping centres in Asia. Nonetheless, this decision of the company came as a surprise for many investors in the stock market, as opening of the store came just after the global economic turmoil that kept investors wondering regarding the finances of M&S. It has also been noted that competition level from the local marketers were observed to be quite h igh in this area, as the local retailers are more competent in serving the customers in the market providing products preferred by customers of lower age groups and lower income groups. On the contrary, it would be vital to mention that the products
Sunday, November 17, 2019
An ironical due process system Essay Example for Free
An ironical due process system Essay More often than not, we get to see or read the news. We get to glance at the headlines or top stories. After that, we often come away with a feeling of sadness or revolt in us. We feel that due process has often not been served in the events that we witness in the news. But is the statement of due process advocates right? That it is better to let ten people go free rather than convict one innocent person correct? In this light, I do agree with the statement, that we should set free â€Å"guilty†people rather than convict an innocent man. The statement seems to be noble and even speaks of a time that the system of justice will be perfect in meting out justice in our society. But that time is not now, guilty people get off scot-free and innocent people are sent to jail. Am I confusing one with the other? Let us clarify the answer. The system that we have right now may not be the perfect system. Yes, for all its faults, it is not perfect, but it is the only system that we have (FreeLawAnswer, 2007). Convicting an innocent man would be a miscarriage of justice, the thing the system wants to avert. Yes, it fails at times, but we should believe in the system, unless chaos and anarchy runs amuck. In the final analysis, in agreeing with the statement, it is still better to let ten or more guilty people go then convict an innocent man. But in agreeing with it, I still believe that these guilty people are still within arms reach of the justice system. Maybe they will not pay their dues here, but they will pay it, one way or another. We must believe that if they escape the justice system here, definitely they will not escape the justice system of the next life. But is it like that that guilty people can escape here and innocent people will be victims of an imperfect system? Maybe, but again, we must believe that we would rather have a system that is not perfect but in place rather than not have one at all. Reference FreeLawAnswer. (2007). Would you rather set 10 guilty people free rather than convict an innocent person. Retrieved February 13, 2008, from FreeLawAnswers website. http://www. freelawanswer. com/law/1146-3-law-4. html
Friday, November 15, 2019
Clown :: essays research papers
Clown a performer, usually in a                          circus, who plays the fool,                          performs practical jokes, and                          does tricks to make people                          laugh. Other names for clowns                          are buffoon, jester, fool,                               conjurer, mirthmaker, tumbler,                          gleeman, mime, actor, harlequin, merry counselor, comic, and puppeteer. E ven though there are many types of clowns, each clown develops a face, meaning a personality. A clown’s face, once created, becomes the clown’s unique personal property. Whiteface The oldest type of clown is the whiteface, which                     dates back to the 18th century. The white color of the face                    was first done with flour. White lead replaced flour,                     but in the 1880s, when lead was discovered to be                     poisonous, safer greasepaints were found. The                    whiteface clown evolved from earlier whiteface theatrical                     entertainers. One of the most popular whiteface characters                in history is Harlequin, a comic personality in the Italian theater form commedia dell’arte. English actor John Rich, who performed in the early and mid-18th century, was the most famous Harlequin of his time. After the mid-18th century, the clown gradually replaced the Harlequin character. English entertainer Joseph Grimaldi played an instrumental role in this shift. Still today you can find clowns which will do the whitefaced act but you would have to look along way to find anything also the whitefaced clown does not use the grease paint the use a type of make-up which is thick and very rich in color and you can find it all over the place. CharacterI                                    In the early 20th century a third category of characterization developed from the so-called carpet clown, who performed short, solo routines between circus acts. These character clowns, as they are known today, include any clown who has a unique routine and who usually works alone or without a partner in a large group. The character clown is the most realistic of the clown types. Character clowns make fun of different features of the human face through exaggeration, including beards, whiskers, warts, large noses, bald heads, and strange haircuts. The most popular character is the hobo or tramp clown, which is probably the only clown type originally developed in the United States. The development of the tramp clown, however, owes much of its inspiration to English actor Charlie Chaplin. During his career, Chaplin played the part of the “Little Tramp'; in many motion pictures. Two other famous tramp clowns are Otto Griebling and Emmett Kelly, close friends who performed in the early and mid-20th century.
Tuesday, November 12, 2019
Research Proposal Outline Essay
Research Proposal Outline Literature Review a. What was the topic of your literature review? Media violence and its effects on children In 1 paragraph, review the overall findings in this field, based on your literature review.            Large numbers of studies have suggested the media violence has bad effect on child’s psychological development. The media can be used as an effective tool in teaching & developing sound habits in children through parental guidance & proper planning of the medium’s people. Parents need to satisfy the child’s confusion regarding fantasies shown on TV so they can learn to critique what they view. â€Å"According to the Office of the Surgeon General, children are theoretically more susceptible to behavioral influences when they are active participants than when they are observers.†( cited in Education Encyclopedia, 2007) Children associate themselves easily to a character they see on TV. A discussion with 8-10 year olds about who they wanted to be like, perceived that they are most influenced by unrealistic characters who are portrayed as braver & stronger than real people. Unfortunately, this fact was augmented for negative characters than positive ones.  Anxieties resulting from excessive violence viewing can pilot physical ailments in children & adults alike. The September 11th events were highlighted by the media; preschoolers reacted to the situation by showing emotional distress over the blood & bodies showed on national TV, elementary school students created ideas of their own & feeling scared for their own family’s wellbeing by watching the attack. Teenagers were most concerned for the victims & realized the effects of the calamity. Research Design Issues a. What is your research question?  What are the effects of media violence on child’s psychological development? What are your hypotheses? Violence shown in media can have bad affect on child’s psychological development and can result in various psychological problems and social problems.   Advertising &entertainment industries are a booming business but it can be used to incorporate positive information to the masses. It represents the culture & spirit of the respective country to the rest of the world & must not be used casually. Parents & teachers should come up with strategies to create a sense of understanding in the children from an early age. The parents should realize what effects the movies & content on TV are having on their children & try to minimize TV viewing at home level. Some ways that may be incorporated by parents to limit children’s revelation to violence are: Restricting & keeping a check on what their children view on TV Discussing the programs with older children or young adults to clear their minds of any confusion & help them in expressing their opinions. Start a family oriented time by going for picnics, organizing a special lunch or dinner. Allow the children to watch TV for a selected time period & only programs that are desirable for their viewing. Offer criticism on TV channels & sponsors for showing in appropriate programs or content so as to force them to use proper censorship. What kind of research design will you use? (Include the aspects of research design discussed in class). Aka longitudinal, cross-sectional, etc†¦ We would prefer a longitudinal research design. Participants a. What kind of participants will be in your study (ages, gender, ethnicity, SES, other important characteristics)? The study will be done on children of age between 5-12 of both sexes and parents of age between 30-50 years of any ethnicity. How would you characterize this sample (ex. Representative, oversampling, within-group)? The sample is within-group. How many participants (if there are 2 or more groups-how many in each group)? Two groups of children and one group of parents and one group of teachers will be formed. Group A and A1 will be of children and group B will be of parents, and group B1 will be of teachers. Children group will have 48 participants and parents group will have 44 participants. Group A will be the group of normal children, while Group A1 of those with violent attitude and behavior. How will you recruit your participants (if there are 2 or more groups, describe for each group)? We’ll contact schools and talk with the administration to allow us take surveys from children and teachers. Children will be asked several questions regarding their activities at home and school. Teachers will be asked about the performance and behavior of students at school. What will you control for if you have more than 1 group of participants? Control group will include those children who have normal attitude and behavior and do not suffer from any psychological or social problem. Measures a. List the variables you will measure. (Be specific and use your hypotheses as a guide.) Variables Number/name of violent movies viewed Number/name of cartoons viewed per day Number/name of shows viewed per day How will you measure these variables? (Give specific names of measures, or if you are developing your own measure, briefly describe it). Statistics ANOVA will be used to measure variables. State which participants will complete which measures (ex. Parents will fill out the Child Behavior Checklist; children will be observed in the Strange Situation). Children will be asked about their activities at home and school and the number of movies, shows and cartoons they watch per day. Parents will be asked about child’s behavior at home and social meetings. Teachers will be asked about child’s behavior at school and performance in studies. Procedures a. Describe your interview procedures (when, where, and how). If you are doing a longitudinal study, you need to describe this for each assessment period. Assessment period of 4 months Three different questionnaires will be prepared for each group, children, parents and teachers. Interviews will be conducted at school in the afternoon for children and evening for teachers after they are free from class teaching. Are you compensating your participants? If so, how much? If you are doing a longitudinal study, you need to describe this for each time period. Gifts will be distributed among children after they take survey and give true information. For each survey gifts will be presented. If you are doing a longitudinal study, you need to describe how you will track your participants between assessment periods. Each participants contact number will be taken on first consent of participating in the study. Each participant will be provided with one telephone and mobile number of the research for easy contact and communication.
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