Tuesday, December 17, 2019

Skin Cancer Essay - 1178 Words

The Causes and Symptoms of Skin Cancer The Causes and symptoms of Skin Cancer While tanning beds and extreme use/exposure to UV rays are ways to get skin cancer, there are also various other ways to get it. Many don’t know that genetics and traits can actually play a huge role in developing this dangerous disease. They also don’t know that skin cancer is the most common type of cancer in the U.S. today. According to the Skin Cancer Foundation more people over the last 300 years have had skin cancer than all of the other cancers combined. They say that one in five people develop skin cancer throughout their lifetime; some surviving, some moribund. Skin cancer starts in the outermost layer of skin called the epidermis. The epidermis†¦show more content†¦Basal cell carcinoma treatment is very important because it can eventually grow deeper into your skin and destroy the tissue and/ or bone (Carucci JA, 2013). It usually looks like a raised, smooth, pearly bump on sun-exposed skin of the head, neck shou lders or back of hands. BCC is often mistaken for a sore that does not heal. (Staff, Skin Cancer Causes, 2012). Squamous Cell Cancer (SCC) is the next most common type of skin cancer. It accounts for about fifteen to twenty percent of skin cancers in individuals. SCC is two times as frequent in men as women and usually catches up with the victim at an older age. If the amount of sun/UV ray/lamp exposure is extremely great, it is possible to get it while at a young age also. Almost all of squamous cell carcinomas result from extreme exposure to UV rays, the sun, and/or lamps (Staff, Skin Cancer Causes, 2012). It is possible to get squamous cell carcinoma on any part of your body. A common place for women to get SCC is on their legs. Some types of SCC look like a common, well-defined, thick, red, scaly patch/ bump on one’s skin. If it is left untreated, it can form into a big mass and possibly spread to other parts of the body (Michael S Lehrer, 2013). The least common, yet mos t harmful, type of skin cancer is called malignant melanoma. It accounts for less than ten percent of skin cancers in individuals. This type of cancer can and most likely will kill a victim if not found earlier in a cancerShow MoreRelatedSkin Cancer1352 Words   |  6 Pagesare not taking skin cancer seriously after knowing its significance. Skin cancer has been a growing problem in the United States and millions of people have suffered from it every year. The three most common skin cancers are Melanoma, Basal cell, and Squamous cell, which can cause bumps, sores, growths, etc. Skin cancer is a deadly disease with many causes, but the advantage is that it can be prevented. Problem/Definition Skin cancer is a disease where cancer (malignant) cellsRead MoreEssay On Skin Cancer1814 Words   |  8 PagesSkin cancer is a very real and common health problem for Australians, with 2 in 3 developing this deadly disease by the age of 70 (Lynch, 2006). â€Å"Due to the Australian climate and lifestyle, as well as a predominantly fair skinned population, skin cancer is the most prevalent form of cancer in Australia,† (Australian Institute of Health and Welfare, 2000). For the most effective prevention against skin cancer, it is recommended that a combination of sun safety measures are met; slip, slop, slap,Read MoreSkin Cancer Essays629 Words   |  3 PagesSkin Cancer What is it and how to prevent it Skin cancer is the most prevalent of all cancers. There are three types of skin cancer: basal cell carcinoma, squamous cell carcinoma, and malignant melanoma. In this presentation I plan to discuss a little about each of these cases as well as tell ways to prevent and treat them. The first most common skin cancer is basal cell carcinoma. This cancer develops in the basal or bottom layer of the epidermis, which is the top layer of the skinRead MoreLiterature Review On Skin Cancer2421 Words   |  10 PagesLiterature Review Skin cancers have become increasingly prevalent over the last 30 years, with 87,000 new melanoma diagnoses per year in the United States (American Cancer Association, 2016). With regards to skin melanoma, medical professionals struggle most with the diagnosis rather than the treatment (Ferris et al., 2017). Therefore, it is important for the medical community to focus on diagnosis- related struggles. Pigmented Lesions and Routine Dermopathy There are various types of pigmentedRead More Melanoma (Skin Cancer) Essay1411 Words   |  6 PagesUV-B rays from the sun lead to premature aging of the skin, as well as the possible formation of skin cancer, know as melanoma. An appearance of a tan is actually a stage of burning and damage to the skin. Although a tan may be desirable to many, the fact remains that more people need to be educated on the dangers of the sun’s harmful rays, and the possible health complications of overexposure.   Ã‚  Ã‚  Ã‚  Ã‚  There are three main types of skin cancer. These are malignant melanoma, basal cell carcinoma,Read MoreIncidence Rate Of Skin Cancer1095 Words   |  5 PagesAbstract: Incidence rate of skin cancer are increasing day by day. Skin cancer is one of the deadliest forms of cancer but detected earlier can save the life time of the human being. An automated screening system is introduced to identify the presence of skin cancer in advance. In this paper, texture distinctiveness lesion segmentation algorithm is used. Experience and training-based characteristics of back propagation neural network is used with texture distinctiveness lesion segmentation algorithmRead MoreSkin Cancer Essay1118 Words   |  5 PagesTopic: Skin Cancer Thesis: Skin cancer is the most common type of cancer in the United States but is highly curable if detected early and treated properly. Specific Purpose: to inform the audience about the different kinds of skin cancer and what preventive measures you can take to protect yourself from skin cancer. I. Introduction A. Do you know that skin cancer is the most common type of cancer in the United States; two million people are diagnosed annually. B. Skin cancer is theRead MoreEssay about Skin Cancer and Expert Knowledge1495 Words   |  6 Pagesbody are both a source of material risk, from cancers, and a symbolic risk, such as being pale and unhealthy looking (Carter and Jordan, p. 76). This example shows how expert knowledge in the form of medical advice tells us to keep our skin covered so as to prevent exposure from the sun that could cause skin cancer, and how this is interpreted by society using the cultural practice of booking holidays and how they balance the material risk of skin cancer with the symbolic risk of getting a tan inRead MoreSkin Cancer : A Significant And An Increasing Health Problem Worldwide1638 Words   |  7 Pages Arjun Ramakrishnan Morgan State University Skin Cancer April 28, 2016 Health Education 103.001 Abstract Skin cancer is becoming a significant and an increasing health problem worldwide. The main cause of this type of cancer is due to the damage done by the Ultraviolet (UV) radiation from sun. There are many other causes and behaviors which contribute towards skin cancer. Protecting the skin from sun by wearing appropriate clothing, a sunscreen with appropriate sun protectionRead MoreSkin Cancer Essay553 Words   |  3 Pagesâ€Å"Cancer†, its a disease that has claim the lives of millions, its a disease that so far has no known cure, and its a disease that has many different forms. Cancer is defined as â€Å"a malignant form of tumors, which are tissue masses that arise through mutations in the genes that govern cell growth and division† (Starr, 1999, p. 213). Skin cancer is just one of the many forms of cancer that effects us and is the most common cancer in the U.S. Like so many others, I would assume that the major cause of

Sunday, December 8, 2019

Student with Challenging Behavior Learning Disability

Question: Discuss about theStudent with Challenging Behavior forLearning Disability. Answer: Introduction: The challenging behavior of students with disabilities leads to learning disability becoming a significant barrier to their academic and social inclusion. A learning definition can be defined by three main requisites, those are, impairment of adaptive and social functioning and beginning in childhood. The disabilities that are associated with learning are variant from specific learning difficulties such as dyslexia, which, do not influence the intellectual capability. The term learning disability is the most accepted term all over the world. The amount of support that a person with learning disability needs depends on the seriousness of the disability. It is therefore important that each student be treated as a separate individual having certain strengths and weaknesses and needs (Chandler Dahlquist, 2014). This report discusses the development and maintenance of challenging behavior along with the strategies that is to be used by teachers and schools to prevent challenging behavior s. Additionally, the report shall also consist of a comparison between school wide positive behavior and positive behavior supports that are planned for individual students. The Development and Maintenance of Challenging Behavior: Emerson et al. developed the definition of challenging behavior, and the definition has become widely used in the perspective of learning disabilities. According to him, behavior of such intensity, frequency and duration that the physical safety of the person or others is likely to be placed in serious jeopardy or behavior which is likely to seriously limit or delay access to, and use of ordinary facilities. According to the National Institute for Health and Care Excellence (NICE), children with learning disabilities display behavior that are challenging. Children possessing behavior that are challenging is an indication that such kind of behavior is a challenge to their family, services and take carers. Some of the typical behavior that students with challenging behavior have are attracting attention of other people, avoiding demands of peer group and lack of communication (Friend, 2013). This kind of behavior is an outcome of personal and environmental interaction including aggression, stereotypic behavior and self-injury, destructive behavior and withdrawal. Sometimes, it also includes sexual abuse, arson and violence and children may encounter the criminal justice system. Thus, it is easy for children with learning disabilities to encounter behavior that are challenging. The behavior becomes more challenging if students have severe disabilities (McLeskey et al., 2012). However, according to Janes et al., (2013) the prevalence rate of challenging behavior is between 5 to 15 percent in social care, health and educational services. The rates go higher in teenagers, especially children in their early twenties. For example, 30 to 45 percent in health care setting. People who have disabilities in learning also have specific communication problems, sensory impairments, physical or mental problems, dementia, autism, and other behavioral challenges. The behavior is visible only in certain kind of environment and the same behavior may be deemed as challenging in some other social or cultural setting. The behavior is an outcome of sensory impairment or avoiding demands. Typically care environments that in which there is lack of social interaction and significant occupation, lack of sensory input and lack of choice and sometimes too much noise. Moreover, it also included care environments that are unresponsive, unpredictable and crowded characterized by abuse and avoidance. To be able to identify the behavior that are challenging in nature proper risk assessments should be conducted, keeping in mind their biological and environmental need along with assessment of their functions. The interventions differ from child to child depending on the triggers that may be set at multiple levels of treatment. The aim should always be to protect the quality of life of the children. Effective Strategies that can be used by Schools and Teachers to Prevent or Reduce Challenging Behaviors: It was held by Cortiella Horowitz, 2014, that one of the most effective ways of managing challenging behavior that is developed by teachers is to attempt to prevent it from happening in the first place. Many schools have come up with many strategies that develop and promote positive behavior. This idea is an evolution that is based on the assumption that all kind of behavior whether negative or positive is learned and hence, acceptable behavior can be learned. Behavior is circumstantial so students can be taught to behave in a certain way in the context of school. Acceptable behavior of children should be reinforced by the school that should be supported with positive behavior. According to Bryant et al., 2016, many mainstream schools have become inclusive in their approach for managing children with disabilities. Mainstream schools, almost every day, encounter situations in which they have to manage children with challenging behaviors. Schools should have Code of Behavior that regulates the behavior of children with learning disabilities. Children are born with an inherent need for safe and secure environment. The classrooms of children can be one of the safest and stable environments for children. Children learn many behavioral aspects from their classrooms. Teachers have the obligation of modeling positive behavior with students by having a more positive approach towards them. According Matson et al., 2014, children are responsive to attention and react positively to behaviors that are reinforced. Teachers often catch children that are being good and reward them positively, and praise them for such actions. When children are reinforced with a positive attitude towards them, it enables them to cope up with behavioral issues easily. Many teachers have developed a formalized manner of praise and approach where children can earn points, stickers and rewards for positive behavior. Chung et al., 2012, provides advice to teachers and schools for the use of rewards for positive behavior: Reward properly for positive behavior as soon as possible The pay offs should be made small and easily achievable The rewards should be made cumulative The pay offs should be made cooperative A reward should not be taken back The element of surprise should always be made a part of rewards However, many disruptive behaviors are also a part of classroom activities at times especially when moving from one activity to the other activity. Thus, it is advisable for teachers and schools to plan their daily routines accordingly. It is also advisable for teachers and schools to give clear instructions to students and clarify their doubts with love and affection. Teachers give many set of instructions to students hence, it is important for teachers to ensure that children understand their instructions carefully. A Comparison Between School Wide Positive Behavior Supports and Positive Behavior Supports that are Planned and Implemented for Individual Students: Many strategies have been developed by schools as part of whole school approach for the promotion of positive behavior. Schools have reported that such a kind of approach has been more effective for children with challenging behavior. Many advantages are related with wide school approach. According to Bethune Wood, 2013, a common belief that schools that focus on care, respect and responsibility can be both a commencing point as well as an outcome of positive behavior. Some of the examples of ethos include assemblies where success of students is celebrated, positive attitude of parents and helping children with special educational needs. The keystone of such a belief is that is shared by the whole school community including children, parents, teacher and board of management. Whereas, the positive behavior approach (PBS) is variant from the wide school approach having less number of inclusions for controlling challenging behavior. According to Gebbie et al., 2012, challenging behaviors are learned and acquired and therefore they can be easily changed. According to the believers of the PBS approach, there is no wrong in wanting attention or escaping from a difficult situation. The PBS approach helps the children in attaining the life they need and this they do by increasing the ways of achieving the things children look for or rather hunt. The PBS approach helps people in acquiring new skills. The reason why they focus on children in acquiring new skills is that it shall help them in overcome difficult situations (Snell Brown, 2014). The PBS plan focuses on the development of two major strategies those are: Proactive Strategies: The proactive strategies allows children to get what they want on a daily basis and also teach them the appropriate skills for communication Reactive Strategies: The reactive strategies help the children to be safe and protected in an environment where they have no sense of fear. The PBS notes the reaction of children when they are placed in such a kind of environment and note their behavior accordingly. Therefore, it may be said that the wide school approach focuses more on reinforcement and having a positive attitude towards children whereas the PBS focuses more on the development of the adaptive skills of children. Conclusion: Teachers in isolation cannot meet the needs of children; there is a need of support of the whole community to address the issues related with challenging behavior. The support of wide school community in promotion of positive behavior is essential. This report has focused on the wide school approach as against the PBS approach for managing children with challenging behavior. Additionally, the report has also discussed appropriate strategies for managing children with challenging behavior. References: Bethune, K. S., Wood, C. L. (2013). Effects of coaching on teachers use of function-based interventions for students with severe disabilities.Teacher Education and Special Education: The Journal of the Teacher Education Division of the Council for Exceptional Children,36(2), 97-114. Bryant, D. P., Bryant, B. R., Smith, D. D. (2016).Teaching students with special needs in inclusive classrooms. SAGE Publications. Bulgren, J. A., Sampson Graner, P., Deshler, D. D. (2013). Literacy challenges and opportunities for students with learning disabilities in social studies and history.Learning Disabilities Research Practice,28(1), 17-27. Chandler, L. K., Dahlquist, C. M. (2014).Functional assessment: Strategies to prevent and remediate challenging behavior in school settings. Pearson Higher Ed. Chung, Y. C., Carter, E. W., Sisco, L. G. (2012). Social interactions of students with disabilities who use augmentative and alternative communication in inclusive classrooms.American Journal on Intellectual and Developmental Disabilities,117(5), 349-367. Cortiella, C., Horowitz, S. H. (2014). The state of learning disabilities: Facts, trends and emerging issues.New York: National Center for Learning Disabilities. Friend, M. (2013).Special education: Contemporary perspectives for school professionals. Pearson Higher Ed. Gebbie, D. H., Ceglowski, D., Taylor, L. K., Miels, J. (2012). The role of teacher efficacy in strengthening classroom support for preschool children with disabilities who exhibit challenging behaviors.Early Childhood Education Journal,40(1), 35-46. Matson, J. L., Hess, J. A., Mahan, S. (2013). Moderating effects of challenging behaviors and communication deficits on social skills in children diagnosed with an autism spectrum disorder.Research in Autism Spectrum Disorders,7(1), 23-28. McLeskey, J. M., Rosenberg, M. S., Westling, D. L. (2012).Inclusion: Effective practices for all students. Pearson Higher Ed. Rispoli, M., Ninci, J., Neely, L., Zaini, S. (2014). A systematic review of trial-based functional analysis of challenging behavior.Journal of Developmental and Physical Disabilities,26(3), 271-283. Snell, M. E., Brown, F. E. (2014).Instruction of students with severe disabilities. Pearson Higher Ed.

Sunday, December 1, 2019

Listeria Monocytogenes free essay sample

The bacterium was named monocytogenes because one distinguish characteristic of infection in rabbits, which was the production of monocytosis in blood (Shuin et al. , 1982). L. monocytogenes is phychrophilic, has a temperature for growth of 0Â °C to 45Â °C (Barbosa et al. 1994), and enjoys a competitive advantage against other gram-positive and gram-negative microorganisms in cold environments, such as refrigerators. Recent investigations indicate that the organism can initiate growth at pH values as low as 4. 4. Also, it grows optimally at water activity of 0. 97. For the majority of strains, the minimum water activity needed for growth is 0. 93 (Lou et al. , 1999); however, some strains may be able to grow at water activity values as low as 0. 90 and survive for long periods of time at 0. 83 (Shahamat et al. , 1980). L. onocytogenes is able to grow in the presence of 10 to 12% sodium chloride; it grows to high populations in moderate salt concentrations (6. 5%). The bacterium survival in high-salt environments is significantly increased by lowering the temperature. We will write a custom essay sample on Listeria Monocytogenes or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Route of Exposure L. monocytogenes is particularly interesting as a foodborne pathogen in that it is ubiquitous in nature. The current understanding of human listeriosis epidemiology suggests that the organism is a common contaminant of food products. This contamination usually takes place on the surface of the products, with up to 15% harboring the organism. The presence of L. monocytogenes in the food processing chain is evidence by the widespread distribution of the listeriae in processed products. Occurrence of sporadic listeriosis appears to be more common in the spring and summer months. This could be explained by seasonal variations in the type of food products eaten by human populations, with higher-risk products eaten in the warmer months. Some outbreaks investigations suggest that certain ready-to-eat processed foods pose a high risk of contracting listeriosis for susceptible populations. These foods are usually preserved by refrigeration and offer an ppropriate environment for the multiplication of L. monocytogenes during manufacture, aging, transportation and storage. The entry of L. monocytogenes into food processing plants occurs through soil on clothing or equipments, contaminated hides or surfaces, and possibly healthy human carriers. The humidity and presence of nutrients support the growth of Listeria, which is commonly found in moist areas such as processing equipment, drains, etc (Cox et al. , 1989). In addition, Listeria can attach to different types of surfaces and biofilm formation has been observed in meat and dairy processing environment (Jeong et al. 1994). Post-processing contamination is the most likely route of contamination of processed foods. Currently, there is no evidence to indicate that L. monocytogenes can survive heat processing protocols. However, because it is a frequent contaminant of raw material used in food processing plants, there are plenty opportunities for reintroduction of listeriae into food processing facilities by cross contamination (Doyle, 1988). If the product is contaminated during its elaboration, the bacteria can survive and multiply throughout storage causing disease when it is consumed. In conclusion, epidemiologic investigations have repeatedly revealed that the consumption of contaminated food is the primary mode of transmission of listeriosis. Food has been identified as the vehicle of several major outbreaks of listeriosis investigated since 1981. Food Associated Some of the food products associated with L. monocytogenes include unpasteurized milk and products prepared from unpasteurized milk, soft cheeses, frankfurters, delicatessen meats and poultry products, and some seafood. Raw milk is a well-known source of L. monocytogenes. Pasteurization effectively inactivates this organism. However, fluid milk that is contaminated after pasteurization and stored under refrigeration may achieve very high populations of L. monocytogenes after one week; Furthermore, temperature abuse may enhance the multiplication of bacterial cells. L. monocytogenes can also be found in cheese because of its relative hardiness to temperature fluctuations, ability to multiply at refrigeration temperature and salt tolerance. During manufacturing process, L. monocytogenes is primarily concentrate in the cheese curd, with only a very small portion of cells appearing in the whey. Then, during ripening of the cheese, the numbers of cells may increase (Camembert), decrease gradually (Colby or cheddar), or decrease rapidly (blue cheese) and then stabilize. In addition, cooked and ready-to-eat meat and poultry products have been implicated as the source of sporadic and epidemic listeriosis on several occasions in North America and Europe (Schwartz et al. , 1989). L. monocytogenes attaches strongly to the surface of raw meats and is difficult to remove or inactivate. The multiplication in meat and poultry depends on the type of meat, pH, and the type of cell populations of competitive flora (Farber et al. 1999). However, it has been shown that poultry supports the growth of L. monocytogenes better than other meats. Furthermore, the incidence of L. monocytogenes in ready-to-eat products has become a major concern for the meat processing industry. Ready-to-eat meat products that have been received a heat treatment followed by cooling in brine before packaging may provide a particularly conducive environment for multiplication of L. monocytogenes because of the reduction in competitive flora and the high salt tolerance of the organism. L. onocytogenes has also been isolated from domestic and imported, fresh, frozen, and processed seafood products, including crustaceans, molluscan shellfish and finfish (Jinneman et al. , 1999). However, seafood consumption is still much less when with consumption of meats and cheeses. Also, the production of seafood products is done on a much smaller scale than meat and cheese manufacture. This may be the reason that large outbreaks have not been reported and that case-control studies have not identified this group as a major risk of listeriosis (Rocourt et al. 2000) Characteristics of the disease Human disease usually occurs in high risk groups, who have a predisposing disease that leads to impairment of their T-cell mediated immunity. However, may occasionally occur in individuals with no predisposing conditions. Some of the high risk groups may include pregnant woman, neonates, and immunocompromised adults (Goulet et al. , 1996). On average, there are 0. 7 cases of listeriosis per 100,000 people, but the disease is seen three times higher in the elderly (gt;70) and 17 times higher in pregnant women. A wide variety of clinical syndromes have been associated with L. monocytogenes in both humans and animals. In healthy individuals, the disease can take the form of mild to substantial flu-like symptoms, including: fever, fatigue, nausea, cramps, vomiting and diarrhea. More severe complications can include: encephalitis, septicemia, mononucleosis-like syndrome, pneumonia, endocarditis, aortic aneurysm, hepatitis, urethritis, rhombencephalitis, peritonitis, liver abscess, febrile gastroenteritis, CAPD peritonitis, septic arthritis, etc. (Dalton et al. , 1997). Lonocytogenes in pregnant women can lead to an intrauterine infection, resulting in stillbirths and miscarriages. Newborns can develop meningitis after birth via transplacental transmission. The onset time for serious complications of listeriosis can be anywhere from a couple of days to three weeks. Mortality of untreated infections is among the highest of all foodborne illnesses, 70 percent. The infective dose of L. monocytogenes is not yet known, it is related to variables, including: strain, susceptibility of the victim, type food from which is was consumed, etc. Mode of Action Listeria monocytogenes is the most invasive bacteria known. The principal site of infection is the liver, but it can invade many cell lines of different types (microphages, fibroblast, hepatocytes and epithelial cells). Listeria monocytogenes infects the host via oral route. Once the bacteria are ingested, they reach the intestine and are translocated between enterocytes and M cells (Pron et al. , 1998); however, the intestinal dendritic cells in the Peyer’s patches appear to be the preferred site for invasion and multiplication (Kolb-Maurer et al. 2000). Bacteria are then internalized by resident macrophages, in which they can survive and replicate. They are subsequently transported via the blood to regional lymph nodes. When they reach the liver and the spleen, most listeriae are rapidly killed. Depending on the level of T-cell response induced in the first days following initial infection, further dissemination via the blood to the brain or, in the pregnant individuals, the placenta may subsequently occur. In addition, bacteria are internalized in membrane-bound vacuoles, which are lysed within 30 minutes. Intracellular bacteria are released to the cytosol and begin to multiply with doubling time of about one hour. These intracytoplasmic bacteria become progressively covered by a cloud of cell actin filaments that later rearrange into a polarized comet tail up to 40 ? m in length (Crossart, 1995). The actin comet tail is made of actin microfilaments that are continuously assembled in the vicinity of the bacterium, then realeased and cross-linked. The entire bacteria cycle is completed in about 5 hours. If cytochalasin D is added after entry, bacteria do not spread within the cytosol. They replicate and form microcolonies in the vicinity of the nucleus. Hence, actin polymerization is essential to intracellular movement and cell-to-cell spreading. In summary, the pathogenic mechanism of L. monocytogenes involves the following steps: adhesion to the host cells, lysis of the phagosome, replication in the host cytoplasm, actin-based intracellular movement and propulsion, and the intercellular spread. Biotransformation Listeria monocytogenes is of interest to a board range of investigators, including food microbiologist, clinicians, immunologist, medical microbiologist, and even cell biologist because it is developing resistance to most currently used antibiotics. In the past, individuals who develop listeriosis have usually been treated with penicillin or ampicillin in conjunction with an aminoglycoside (Charpentier et al. , 1999), although tetracycline, erythromycin or chloramphenicol, alone or in combination, has also been used (Hof et al. , 1991). More recently, reports of resistance in Listeria spp. have been published. Such increases in antibiotic resistance have been linked to over-use of antibiotics in animals and humans (Rao, 1998) since these therapeutic compounds were identified nearly 60 years ago. This resistance may arise from a mutation in an intrinsic chromosomal gene, or by acquisition of exogenous genetic material carrying single or multiple resistance determinants (Levy, 1994). It is now clear that such transfer is possible between unrelated bacterial species (Kruse et al. 1994), and that these interactions are a frequent and important means of genetic exchanges among microorganisms. In conclusion, it is evident that antibiotic resistance is becoming more and more widely reported in all bacteria. Control and Prevention Because L. monocytogenes can grow at refrigerator temperatures, the Center of Disease Control and Prevention (CDC) advise all consumers to reduce the risk of illness by using a refrigerator thermometer to make sure that the refrigerator always stays at 40 Â °F or below and using perishable items that are precooked or ready-to-eat as soon as possible (CDC, 2005). For high risk groups it is recommended to not consume hot dogs and luncheon meats, unless they are reheated until steaming hot; not eat soft cheese such as Feta, Brie, and Camembert cheeses, unless it is labeled as made with pasteurized milk; not eat refrigerated smoked seafood, unless it is contained in a cooked dish; and not drink raw (unpasteurized) milk or eat foods that contain unpasteurized milk. Therapy When listeriosis is a likely diagnosis, the use of ampicillin or, in penicillin-allergic patients, vancomycin will provide empiric coverage for L. onocytogenes until the diagnosis is made by culture. Once listeriosis is confirmed, a combination of ampicillin and gentamicin is the current therapy of choice for all forms of listeriosis. The duration of the treatment for invasive listeriosis has not been studied. Relapses appear to be uncommon, and two to three weeks of therapy with ampicillin and gentamicin is sufficient for most forms of listeriosis. Rhombencephalitis with abscess formation in the central nervous system may require more prolonged therapy, but data are not available that support treatment beyond four weeks (Lorber, 1997).

Tuesday, November 26, 2019

6 Study Tips for Visual Learners

6 Study Tips for Visual Learners Visual Learning is one of the  three different learning styles  made famous by Neil D. Fleming in his VAK model of learning. He states that people who are visual learners need to  see  new information in order to truly learn it, hence the need for study tips for visual learners. Visual Learner Tips People who have this trait are often very spatially aware and respond to things like color, tone, brightness, contrast, and other visual info when they read, study, and learn. Some also have photographic memories in various degrees and can not only visualize information after reading it or seeing it but can recreate it. Most people utilize this learning method at least partly throughout their lives, especially since traditional school is geared toward those visual learners, but some people would classify themselves as predominantly visual learners where others would not.  If youre one of them,  you may find these things helpful when studying for a test, quiz, midterm, or final exam. Since sight is key, visual learners need materials in front of them to help get  the information fully committed to memory. Capitalize on this learning style with simple tips. Color Code Assign colors to common themes in your notes, textbook, and handouts. For instance, if youre studying vocabulary words for a test, highlight all of the nouns in yellow, all of the verbs in blue and all of the adjectives in pink. Youll associate that particular color with the part of speech, which will help you remember it on the test.   In a history textbook, highlight all the major actions of a particular general, for instance, in one color and all the consequences of his actions in another. When researching for an essay, color code the info you find by topic.   Your brain remembers color really well, so use it to your advantage! Organize Your Notes Because youre so visual, disorganized notes will be largely unsettling to you. Put all of your handouts in one place in your notebook or binder. Design clear, neat tabs or another type of system to keep things straight. Rewrite your notes. Use outlines to keep things succinct and clear. Not only will you be looking at the ideas from the lecture again, which capitalizes on your visual learning, but you can also add new information or edit as you move along. This will help you learn the material. Study the Graphics This is a fabulous study tip for those of you who can absorb new information with your eyes. Use the charts and graphics in your textbook for your chapter test  to your advantage. It is much easier to learn the periodic table of the elements on the chart than it is to learn a list of the elements. Bonus? Charts that are color-coded! Draw Pictures or Figures Even if you are not the most creative person, get out your pencil and draw pictures, figures, and diagrams to accompany the information you are trying to learn. The phrase, A picture is worth a thousand words definitely applies to you. Your brain will store a set of drawings of the five biggest cities in Canada in your head much longer than it will a list of those cities. Help yourself out when the textbook doesnt and create your own visuals. Watch Documentaries or Videos Dont be afraid to step outside of your classroom in order to glean knowledge about whatever it is you are studying as long as you use a reliable source and not some hack on YouTube. Getting a well-rounded, big picture of your topic can really expand your knowledge! And when you are this type of learner, it helps to secure that knowledge through media like documentaries or videos rather than just through textbooks.   Draw Concept Maps A concept map is a method of visually brainstorming, where you get all of the ideas from your head onto paper and draw connections where you see fit. Youll start with a central idea - weather, for example. That will go in the center of your sheet of paper. Then, from the weather, youll branch off into main categories. Add things like precipitation, climate, air, clouds, and so on. From each of those categories, youll branch off further. Clouds could be divided further down into cumulus, stratus, cirrus, and so on. Precipitation could be divided down into rain, sleet, snow, etc. If you look at the topic you are learning from this angle, its easy to spot gaps in your knowledge base. If, for instance, youre studying weather and you realize you have no idea how climate can affect weather or what to put under that category, perhaps you missed something in class.

Friday, November 22, 2019

Are You Self-Critical I Sure Am.

Are You Self-Critical I Sure Am. An opportunity for rejection This weekend I took a workshop with Wright as part of a year-long training I’m doing there. On Saturday evening we received an assignment to talk to strangers and get rejected by them. One option for conversation was to tell people about the Wright workshop and invite them to attend. Despite my terror at being viewed as a proselytizer, I took it on. I figured anything that made me that terrified was worth doing. The next thing I knew I was walking up to a woman sitting in front of a burrito shop in Chicago, taking in her look of skepticism, and saying â€Å"I know this is really weird, but†¦Ã¢â‚¬  A few minutes later I had fielded many objections as well as multiple claims that she was not interested: I was not with any sort of religious organization; people from out of state could do the workshop; and all kinds of people, from teens to military to owners of writing and editing companies, got value from the program. A breakthrough It didn’t take long for her to start sharing with me about her husband and how he could really benefit from a program like this, and about her special needs child; in the end she was the one who told me her name without my asking. And she took information about the program with real interest. Everyone I told this story to was blown away by how I continued to talk to this woman despite her multiple attempts to make me go away. I quite possibly made a difference in another human being’s life because I was willing to act despite my fear. In my small group for the weekend, I was voted to share the story with the larger group. But†¦ My self-talk was that this was just me using my sales skills. When I had an opportunity to share about my interaction with a room full of 60 people, I didn’t tell them how awesome I was. I talked about my fear of rejection (which obviously I did not let get in my way). I received some spot-on coaching about my choice of what to share and was left wishing I had just told the story about how I connected with the woman in front of the burrito shop. I immediately started beating myself up that I hadn’t done it right. I wanted a do-over!! (Sound familiar?) I was so self-critical, in fact, that I could barely concentrate on the program for the next several hours †¦ until †¦ I got to watch someone else get coaching on her own self-critic. Suddenly, watching it outside of myself, I was able to feel the hurt of holding on to my critic- really feel it- and I started to ease up on myself ever-so-slightly. Before this experience, I think all I did with my inner critic was to criticize myself for having such a loud one. This time, feeling the pain and emotion of what it’s like in my head, I started to have compassion for her. I’m not getting rid of my critic, mind you. She’s very useful to have around and allows me to correct a lot of things that might otherwise remain a mess. She motivates me to grow and learn. But I’d like her to have less of a hold on me so I have my full energy and brain power to focus on things like reaching out to people and taking on other terrifying, exhilarating tasks in life. Maybe you’d like to cultivate more compassion for your inner critic? Do you tell stories in a way that gives yourself less than full credit? Do you frequently find yourself wanting a â€Å"do-over†? What difference would it make in your life if you could have compassion for the critical voice in your head?

Thursday, November 21, 2019

Research a hospitality business Essay Example | Topics and Well Written Essays - 2000 words

Research a hospitality business - Essay Example Starbucks has been in the UK since 1998 when they purchased 65 Seattle Coffee stores that were already located in the UK. The reason that Starbucks bought these companies was because they shared a common culture. Both companies had a commitment to create customised coffee, they had similar values, a mutual respect for their customers, their employees, and they had a commitment to the environment. This information prompted them to buy Seattle Coffee as a way to reach out to the UK community (Starbucks Coffee Company, 2011a). Overview of the Business Starbucks actually began in 1971 when they were a roaster and a retailer for whole bean, ground coffee, and tea and spices. At that time, they owned one store in Pike Place Market in Seattle, WA, USA. They were a private company at that time and did not become a public company until 1992 and 1993. At that time, they decided to look for locations in large cities so that they would have a 'hub' store with smaller stores around in these locat ions. They hired what they called 'zone presidents' to oversee the new stores; each zone president had many years of experience in marketing chain stores (Thompson and Gamble, 1997). Starbucks was able to easily identify those retail sites that would be best for theirs stores. They hired a real estate team who was versed in the coffee bar industry and they instituted a 'sophisticated system' that allowed them to identify the locations that would be best for their stores. They were able to track each area in such a way that they also found attractive city blocks where they could start their stores (Thompson and Gamble, 1997). Today, they have 17,000 companies in 50 countries and they continue to grow (Starbucks Coffee Company, 2011a). Starbucks took its name from the book, Moby Dick by Herman Melville. Starbucks was the name of the first mate in the story. They boast that they have millions of customers world wide and they enjoy serving them the best coffee possible. Starbucks has 70 0 stores across the UK (Farrell, 2010). Every business must start with a mission and Starbucks mission is 'to inspire and nurture the human spirit – one person, one cup and one neighbourhood at a time' (Starbucks Coffee Company, 2011b, p.1). With this mission, they know exactly what they want to do when they go into each new country or new city. Processes and Systems Starbucks has been able to institute specific processes and systems in their company that worked. They have used the same system in each of the countries they moved into because it worked. Food and beverages purchasing Starbucks purchases coffee from farmers around the world. They basically have four brands that they sell all of their beverages under. These brands are: 'Starbucks Coffee, Seattle’s Best Coffee, Tazo Tea, and Torrefazione Italia Coffee' (Starbucks Coffee Company, 2011b, p.2). In the UK, Starbucks has only introduced a few of its products which include: Via, a new instant coffee that people c an purchase at Tesco stores Starbucks Whole Bean Coffees, Starbucks Discoveries Chilled Coffees, and Starbucks Doubleshot Expresso drinks (Puget Sound Business Journal, 2010). Dave Olsen who is Starbucks' senior vice president for coffee, travelled around the world to coffee growing companies and talked to farmers to find the richest quality coffee beans that would produce the best flavour. Starbucks bought the beans above the price that they would

Tuesday, November 19, 2019

Healthcare Reform (I Oppose It) Essay Example | Topics and Well Written Essays - 750 words

Healthcare Reform (I Oppose It) - Essay Example With increase in the cost of life, it is apparent that paying for medical cover is to some extend seen as a luxury especially by middle class people. The budget on how to spend the earnings has been difficult characterized by large budgets and loans that act as a burden to many people. Besides, it is only logical that one cannot pay for medical cover and forfeit their meals. Groszkruger (2011) argued that the government should put in place mechanisms that allow its citizens to be flexible in the way they carry on with their lives. For instance, instead of the government introducing a healthcare program and then impose some policies that compels people to part with money, it would have been better if the government came up with proposals that would help people that are unable to pay for the plan to get the funds. For instance, a section of the national budget should be set aside to pay for those people that are unable to pay. In a different dimension, the law to tax people if they fail to pay for the plan can be argued to be oppressive because it is the right for people to get free medical help from the government. In fact, according to Wolfe (2012) the government should not bring in the issue of taxing social amenities that are considered fundamental to its people. Instead, there should be funds obtained through other means in taking care of healthcare of the Americans. The plan and other social policies should be outlined in such a way that the Americans can only contribute small amounts to aid the running of the institutions put in place. In regard to solving the issue of lack of money to pay for the coverage, the Obamacare proposes that one can obtain financial help to pay for the coverage. Although one would be made to believe that this is a solution, it is only seen as so on the basis of paying for the coverage. In fact, this could be argued to mean digging a hole to obtain soil