Saturday, November 30, 2019
Learning Like This Could Help You Get Way Better Grades
Until recently, many of the resources available to help students boost their grades were difficult to access. Barriers like cost, time, and distance prevented high school and college students from learning efficiently outside of classroom hours. But now, personalized learning is gaining steam - and quickly. Ed-tech organizations are investing heavily in new ways to approach personalized learning, and the amount of money funding these projects is increasing every year. Even Facebookââ¬â¢s Mark Zuckerberg is donating a portion of his $45 billion contribution to education to developing personalized learning. Letââ¬â¢s take a look at why personalized learning works and what type of ed-tech you can use to access personalized learning. Why personalized learning works Studies have shown that students who access one-on-one mentoring and use mastery learning perform at an average of 98% betterthan their peers who donââ¬â¢t. In fact, weââ¬â¢ve known this for a long time; Benjamin Bloom produced research outlining the benefits of one-on-one education back in 1984. One-on-one mentoring is key in helping students improve their grades. In this model of learning, students are able to learn more because they can learn at their own pace, use the VARK learning styles that best suit them (visual, auditory, read/written, kinaesthetic), focus on areas of particular difficulty and interest, and form a relationship with their mentor (who could be an accessible teaching assistant on campus or an online tutor). Itââ¬â¢s quite difficult for students to completely master a subject while engaged only in traditional high school, or college classroom models. ââ¬ËMastery learningââ¬â¢ refers to spending the time it takes with a mentor, tutor, teacher, or other subject expert in order to fully understand a subject. Students are able to carry on to new course chapters or topics only when they have a perfect, or ââ¬Ëmasteredââ¬â¢, understanding of all preceding material. How to get better grades with online tutoring Online tutoringis one way to access personalized learning that has emerged as a popular go-to for many students across North America over the past few years. Simply put, online tutoring is allowing students to access the best tutors for one-on-one mentorship without barriers of distance and using the most advanced online tools for education. Connecting with a qualified and reputable online tutor on a regular basis provides one-on-one mentorship and mastery learning. In turn, you can expect far better grades than your classmates and more importantly, than your own grades prior to learning one-on-one in a digital classroom.Try online tutoring with Skooli today and get 60 minutes free!
Tuesday, November 26, 2019
Environment Cleaning Potential of Microorganisms Essays
Environment Cleaning Potential of Microorganisms Essays Environment Cleaning Potential of Microorganisms Paper Environment Cleaning Potential of Microorganisms Paper Bioremediation, a form of biotechnology, involves the use of the actions of microorganisms to aid in the removal of oil spills in oceans throughout the world. In essence, the process of bioremediation takes advantages of the biodegradation capabilities of microorganisms, which pertains to the capacity to break down and utilize various compounds, one of which is petroleum (Congress of the United States [CUS], 1991). Although by definition it is rather simple, bioremediation is not as easy as placing certain microorganism at oil spills. There are three different approaches used in bioremediation depending upon the conditions. The three methods are nutrient enrichment, indigenous microorganism seeding, and genetically altered microorganism seeding (CUS, 1991). In relation to this, the best known microorganisms that degrade oil are from strains of Bacteroides, Cytophaga, and Flexibacter, which are all gram negative bacteria (MacNaughton et al., 1999). The fact that bioremediation is considered as biotechnology is easily proven. Given that the term biotechnology is a generalization of the use and application of organisms and related processes for the benefit of humans, in this case, microorganisms are used to improve the condition of the environment which evidently improves the environment and eventually benefits humans. Due to biotechnology being associated with alterations in known organisms, the public has often been concerned about the negative impacts which biotechnology may bring. In this case, however, the main concern is the possibility that the added microorganisms might alter ecological balance. This is easily refuted as studies have shown that upon clearing the spill, the oil degrading microorganisms become significantly minute in terms of number, hence allowing the natural balance during normal conditions to persist. The only question whether bioremediation may be used is regarding the capacity of the government to provide such solutions. Therefore, in a purely environmental and biological sense, bioremediation is the best and safest possible way of eliminating oil spills in the ocean. References MacNaughton, S. J., Stephen, J. R., Venosa, A. D., Davis, G. A., Chang, Y., White, D. C. (1999, August). Microbial population changes during bioremediation of an experimental oil spill. Applied and Environmental Microbiology, 65 (8), 3566 ââ¬â 3574. United States Congress, Office of Technology Assessment. (1991, May). Bioremediation for Marine Oil Spills- Background Paper, OTA-BP-O-70. Washington, DC: U.S. Government Printing Office. Retrieved May 14, 2009, from fas.org/ota/reports/9109.pdf.
Friday, November 22, 2019
Causes and Effects of Water Pollution Essay cause and effect paper, e
reason for that is that plastics take four hundred and fifty years to decompose in the water. Also many companies use plastic and people throw it in the waterways. Because water can float and be carried by the wind, it can cause harm to unsuspecting creatures hundreds of feet from where it was originally dumped. Such waste includes bags, bottles, cups, straws, cup lids, utensils, six pack holders, cling wrap, fishing line, bait bags, and floats. The second highest cause of water pollution is ship waste. Ships used to take much garbage with them on their ships and dump them. This was very common until the government took action. They were giving sailors up to one million dollars fines for disposing waste. Because of that, ships now carry less garbage with them. Animals are not the only thing being harmed by water wastes. Fishing lines, rope, and plastic nets are being caught in the rutter and the engine, but the ships are not exactly perfect. The other main cause of water pollu...
Wednesday, November 20, 2019
Does the implimentation of the national health insurance program in Research Proposal
Does the implimentation of the national health insurance program in Ghana help reduce HIV AIDS which is prevlant in rural Ghana - Research Proposal Example The government marginalizes sex workers as not of interest, therefore the disease is not given the due consideration in the newly democratized stated (Howley, 2010, p. 367). The prevention of HIV/AIDS through behavior modification has been a primary resource for addressing the disease (Howley 2010, p. 186). According to the International Monetary Fund (2006), HIV/AIDS issues are recognized as a threat to the ââ¬Å"socioeconomic development of the country through its potential impact on human capital development, productivity, and social services deliveryââ¬Å"(p. 109). In 2006 the following measures were taken in working towards prevention of the disease within the nation of Ghana: The following table shows the number of people who were benefiting from ART as of December of 2006. At that time, there were 50,942 people in need of services with only 7,338 benefiting from art which represents only 14.4% of those in need(International Monetary Fund, 2006, p. 109). Ghana has seen a decline in poverty from 39.5% in the 1998 to 1999 years to 28.5% in 2006 (African Development Bank., & OECD, 2008). In addition, there has been a concerted effort on the part pf the government to address the needs of their citizens in regard to health care. According to former President of Ghana, Jerry John Rawlings, Ghana suffers from a poor system of health care that is lead by a staff of insensitive and unprofessional medical personal and complicated by poor infrastructure and a lack of equipment. The staffs of hospitals are burdened by a lack of everything, thus leaving them jaded and without motivation (Modernghana.com 2010). In addition, the National Health Insurance Scheme that has been put into place is beleaguered by problems and is not providing the much needed services that the people need in order to have adequate health care. The National Health Insurance Scheme is the product of the administration led by John Kufuor. However, one of the exceptions to
Tuesday, November 19, 2019
Acquisition Strategy Analysis Essay Example | Topics and Well Written Essays - 1000 words
Acquisition Strategy Analysis - Essay Example This paper will mention two organizations that are under a different industry operation but make use of acquisition strategies in order to make their positions stronger in todayââ¬â¢s competitive business world (Chan, 2003). Advantage presented by a merger or acquisition to either two or even more organizations is an option of strategic positions that are attractive for the ability to achieve operating economies, thus strengthening the effects of the organizationââ¬â¢s competitiveness and competencies, resulting to new avenues that allow more innovative market opportunities. An acquisition can be referred to as a combination between two or even more organizations or companies whereby, one of them thoroughly buys and assumes all the operations or processes of the other one. These strategies, if properly researched and handled, can result to generation of an enormous amount of profit to the organization; however, not every single company that makes use of mergers or acquisitions can be termed as successful. Most companies are yet to meet their goals or expectations as a result of acquisitions performance. In fact, a handful of the organizations have epically failed (Gamble & Thompson, 2011). ... Sixteen years ago after its publicity, its market capitalization was approximately 120 billion dollars, which is vastly larger than that of Xerox, Apple, and Dell combined. Cisco has managed to sail through whereas several because of its expertise in professionalizing processes which most firms occasionally embark on when they need them or when they are greedy to make more profits. The Airspace former CEO once said that most of the companies he had interacted with rarely use acquisition strategies and in fact, integration is their job at night. He went ahead to say that, unlike the others, Cisco consists of individuals whose initiative is to strategize both during the day and night. Acquisition therefore, to him, is the companyââ¬â¢s core function (Gamble, 2011). According to experts, Cisco is a highly successful company in terms of identification of new technologies in the market and taking calculated corporate risks mainly in markets that are new. However, the main point to note is that the firmââ¬â¢s acquisition and merger operation strength lies elsewhere. The firm noticed that technology acquisition cannot only lie on technology but the people as well. Hooper, the CEO, said that the firmââ¬â¢s most strategic and useful asset is the people. The people in this case mean the firmââ¬â¢s expertise. He says that once the firm loses product managers and technologists who may have created, say, a router to a link after an acquisition, then it may be said to have lost an immense deal of products which might have only existed in the heads of those employees. The core nucleus to the firmââ¬â¢s acquisition machine may be said to be its development group. It comprises of 40 individuals securely tucked to a cubicle firm that is
Saturday, November 16, 2019
Severe Acute Respiratory Syndrome Essay Example for Free
Severe Acute Respiratory Syndrome Essay SARS is a highly contagious ailment, whose indications closely resemble those of influenza. Some of the symptoms of SARS are chills, headaches, muscle pains, sore throat and high fever. As the disease continues, there is an onset of pneumonia, which can prove to be fatal. In this context, the World Health Organization had estimated that fifteen percent of the cases of SARS infection proved to be fatal. This disease has defied all attempts at a cure; moreover, there is no vaccine for this disease. The SARS virus underwent a mutation, which enabled to cross the species barrier from animals to people. SARS is a respiratory illness and the symptoms of this illness are fever when the virus infects the human body. Normally the temperature of the human body of an infected person would be in excess of 100. 40F. The infected person develops chills and symptoms like headache, discomfort and body pains. In addition, there could be mild symptoms of respiratory distress in the beginning. Within two to seven days the patient develops a dry and nonproductive cough. The nonproductive cough would result in insufficient supply of oxygen to the blood. Some patients could even require the administering of clinical ventilation. SARS is a contagious disease and it spreads through the droplets that issue forth from a person who is coughing or sneezing into the air, if that person has been infected by the SARS virus. The primary manner of transmission of the virus is through the air or from objects that are contaminated with the virus (TARGET SARS Target II SARS/CoV 3CL-PRO). In 2003, an outbreak occurred of a previously unrecognized illness ââ¬â termed SARS, or severe acute respiratory syndrome. It was caused by infection with a newly identified coronavirus, SARS-COV. Infection produced an illness with Pneumonia as the main disease; however, some patients developed other complications like the loss of appetite, diarrhea and bleeding in the abdomen or stomach. Many of those who developed this disease were health-care workers and the infection rate among them was very high (SARS. Blacks Medical Dictionary, 41st Edition. CredoReference ). Extraordinary and exceptional isolation procedures had to be necessarily adopted because the Epidemic threatened to spread all over the world from its origin in Hong Kong. Some of the measures adopted, in order to reduce the risk of the spread of this infection was the concentration of patients in individual hospitals, which were converted into isolation units. Visitors were not allowed into such hospitals. Staff and other patients who had been exposed to persons suffering from this disease were segregated in such special units. Further, routine care for in patients in the hospital was discontinued and screening of likely contacts was conducted. In addition, a number of restrictions were imposed on travel. Due to this strategy, which had been performed in coordination with the World Health Organization, the SARS pandemic was finally controlled (SARS. Blacks Medical Dictionary, 41st Edition. CredoReference ). The virus genome on careful analysis revealed that this virus was a recombinant of virus relating to bird bronchitis and a virus relating to mouse hepatitis. It takes between two to ten days for the symptoms caused by the SARS virus to become noticeable after the infection takes place. With the increasing age of the patients there is a corresponding increase in mortality rate and proves to be fatal in approximately half of the patients whose age is above sixty years of age (SARS. The Hutchinson Unabridged Encyclopedia including Atlas CredoReference). In the month of November 2002, the first incidence of SARS infection was discovered. This was in a place that was close to Foshan in the Guangdong province of southern China. However, this disease caught the attention of the people in the month of February 2003, when it spread globally due to air travel by infected persons. In the month of February 2003, Carlo Urbani, who worked for the World Health Organization in Bangkok, was asked to go to Hanoi in Vietnam, in order to treat an industrialist, from the US, who showed symptoms of an unknown disease. In this manner, Carlo Urbani became the first person to identify this disease as a new disease (SARS. The Hutchinson Unabridged Encyclopedia including Atlas CredoReference). Several scientists, especially those from Canada, were successful in establishing that this new SARS virus belonged to the family of the coronavirus. This disease spreads to other persons, if the victim is located very close to an infected person who spreads this disease by coughing. Further, this disease spreads to people who enter a place in which infected people have deposited exhaled droplets of phlegm or other fluids in their body. Moreover, infection with this disease occurs if contact is made with door handles and similar objects that have contaminated droplets on their surface. Furthermore, it is possible to get infected with this disease if a person enters an enclosed place like a lift in which contaminated droplets are present. Eight thousand victims of SARS were identified by the end of is outbreak in the year 2003. Out of these SARS victims, seven hundred lost their life. The maximum damage due to this virus took place in China, Hong Kong and Taiwan. In Toronto, Canada there were one hundred and forty cases of such infection and twenty five of such infected persons died. In Singapore, there were around three hundred instances of this infection and out of these thirty persons lost their life (SARS. The Hutchinson Unabridged Encyclopedia including Atlas CredoReference). In the year 2003 scientists were successful in discovering the gene that made the human body prone to infection by the SARS virus. While studying the human leukocyte antigen or HLA proteins, they realized that the variation in a gene that produces the HLA-B*4601 protein was common in the South China population. This was the area of origin of the SARS virus and people with this gene variation displayed a reaction to the SARS virus that was greater in severity in comparison to those who did not have this particular gene variation. Moreover, SARS infections are very rare in people who do not possess this HLA-B*4601 gene variation. Most of the people who belong to Taiwan and Europe do not have this gene variation (SARS. The Hutchinson Unabridged Encyclopedia including Atlas CredoReference). At the time of the rapid spread of SARS, the World Health Organization sent out a global alert in which it asked the people to mask their face in public places, to avoid air travel, to thoroughly check airplane passengers for increase in body temperature and to quarantine infected persons. A number of scientists are engaged in developing a vaccine for this disease. However, this disease was controlled by the beginning of the year 2005 and does not exist anywhere in the world, except in the laboratories (SARS. The Crystal Reference Encyclopedia CredoReference). SARS has defied all attempts at a cure and there is no specific vaccine for it. This has restricted the treatment to reducing the severity of the symptoms shown by the patient and treating any side effects of this infection (SARS in full severe acute respiratory syndrome. Britannica Concise Encyclopedia CredoReference ). It is now common knowledge that in the year 2003, in Guangdong province of China, the first occurrence of this severe atypical pneumonia was observed. The epidemic was suspected to be associated with a new virus and subsequently, researchers isolated an avian influenza A (H5N1) virus from a patient in Hong Kong. Researchers focused on members of the Paramyxoviridae family since some particles were detected by the process of electron microscopy of respiratory samples from patients in Hong Kong and Frankfurt (Peiris, Chu and Cheng). Subsequent investigations revealed that the human metapneumovirus or hMPV existed in SARS patients. Researchers in China had detected the Chlamydia organism in patients who had died due to atypical pneumonia during the outbreak of SARS in Guangdong. However, these organisms were not present in patients outside China. In the month of March 2003, researchers in the United States, Hong Kong and Germany found traces of a previously unknown coronavirus in SARS patients. This discovery was in different ways and some of these methods included isolation on cell culture, demonstration by electron microscopy, demonstration of specific genomic sequence by polymerase chain reaction or PSR and by the use of microarray techniques and the indirect immunofluorescent antibody tests (Peiris, Chu and Cheng). In this context, the World Health Organization announced on the 16th of April, 2003, that the coronavirus had not been discovered in humans and animals till that date and that it was a new virus, which was the cause of SARS. Before announcing the discovery of this new virus, thirteen laboratories in ten countries tested this new coronavirus in accordance with the postulates of Koch, which is essential to prove that this new virus causes SARS. This virus causes interstitial pneumonia that shows symptoms that are similar to SARS, and the virus was isolated from the nose and throat of infected monkeys. The corona viruses belong to the family of Coronaviridae. This family consists of very large, positive ââ¬â sense single ââ¬â stranded RNA viruses, which replicate themselves in the cytoplasm of the animal host cells (Siddell, Wege and Meulen). The gene factors of corona viruses range in length from 27 to 32 kb, and are the largest of the RNA viruses. The diameter of the virions ranges vary from 100 to 140 nanometers. Most of the viral particles bear the distinct appearance of surface projections and these spikes extend to twenty nanometers from their base. In animals, corona viruses cause extremely virulent respiratory, enteric and neurological diseases. They also cause hepatitis, respiratory diseases that are temporarily prevalent and widespread in animals and gastroenteritis having short incubation periods between two to seven days. The symptoms revealed in SARS are the same (Holmes). Corona viruses are species ââ¬â specific and when they attack immunocompetent hosts, their infection extracts neutralizing antibodies and cell ââ¬â mediated immune responses, which in turn kill the infected cells (Holmes). Most of the corona viruses cause terminal diseases in animals such as feline infectious peritonitis virus or FIPV, hemagglutinating encephalomyelitis or HEV of swine and some strains of avian infectious bronchitis virus or IBV and mouse hepatitis virus or MHV. They replicate themselves in the liver, lungs, kidneys, gut, spleen, brain, spinal cord and other tissues (Holmes). Human corona viruses HCoVs were found to cause minor diseases. They are found in group 1 known as HCoV ââ¬â 229E and group 2 known as HCoV ââ¬â O43, and they cause minor respiratory problems (Makela). Sometimes they cause severe infections of the lower respiratory tract in children and adults and a condition termed as necrotizing enterocolitis in newborn babies. They can survive on normal environmental surfaces for three hours and they are transmitted among humans by droplets, hand contamination, fomites and small particle aerosols (Ijaz). The Coronaviruses produce Coronavirus Main Protease protein or 3CL ââ¬â PRO. This protein helps the virus to replicate itself and thereby spread the infection. In order to stop the infection, it is essential to bring about a disabling of the protein from working and this would consequently, contain the virus production and the attendant infection. Therefore, researchers had concentrated on producing a drug that would hinder the functioning of the 3CL PRO protein. With the achievement of this breakthrough, pharmaceutical companies started to prepare drugs that would hinder the functions of the 3CL ââ¬â PRO protein, which is responsible for the multiplication of the virus and the resultant SARS infection. Ritonavir and Indinavir are the major ingredients of the anti ââ¬â HIV drugs. The Coronavirus Main Proteinase is the principal drug that is used in the treatment of SARS (TARGET SARS Target II SARS/CoV 3CL-PRO). The HIV virus and other viruses that cause influenza on infecting people have been described as wily because of their characteristic of mutating rapidly. This trait helps them to obtain immunity from antiviral drugs or from the human immune system. However, the SARS virus has not been undergoing mutation. Clinical examinations of the genome sequences of fourteen isolates from patients in Singapore, Toronto, China and Hong Kong did not establish any mutations of the original sequence and it can be concluded that the SARS virus is invariant. However, this notion that SARS virus does not mutate or fails to mutate cannot be taken for granted since the virus did not face significant resistance from human hosts (Knight). Coronaviruses are not so active in the replication of their genetic material and as a result they make one error for every ten thousand nucleotides that they replicate. This is similar to what the HIV virus does. Coronaviruses have a significant characteristic that helps them to reject mutations as and when they occur. These viruses have an enzyme that enables them to replicate their genetic material and spreads among several copies of the viral genome instead of being restricted to a single template of the genome. The result of this is that each genome is copied from multiple templates. This procedure reduces the chances of mutations in the populations of the coronavirus (Knight). The enzyme that brings about the copying of the virus functions in such a manner that instead of using just one template genome it accesses several such templates and this results in a drastic reduction in the possibility that any particular mutation will dominate in a viral population. Moreover, such haphazard template access can entail an inaccurate access by the enzyme (Knight). The consequence of such access by the enzyme would be the deletion of some portion of an essential gene, which could produce results that would be drastic, particularly, if the mutation affects the protein spikes that are bound to the surface of the virusesââ¬â¢ cellular victims. In 1984, there was an outbreak of a new ailment on European farms that were rearing pigs. It was determined to be a mutant of the coronavirus, in which the altered spike protein had effected changes in respect of the type of cells that could be invaded by the virus. Although, this mutant did not prove to be fatal, all the same it has spread globally and made the diagnosis of gut disease more difficult (Knight). It is assumed that genetic deletion was responsible for the SARS virus to find a new target, namely, the human body, from its previous animal hosts. In that case the mutation could be of a totally different type due to the fact that the spike protein has remained unaltered. While comparing with the viral strains present in the animals sold in the Chinese markets, it became evident that the SARS virus does not have twenty nine nucleotides in the gene for a protein whose function could not be determined. This protein was found to be appended to the inside of the protective layer of the virus (Knight). The WHO spearheaded the battle against SARS and was extremely successful in uniting the global community in combating this menace. Dr Carlo Urbani became a martyr in the battle against SARS. This disease demonstrated that there are several dangers that could surface when least expected to do with terrifying results (SARS: how a global epidemic was stopped). Within a short period of seven months, around eight thousand people were infected by this disease in twenty nine countries. 1755 persons were infected in Hong Kong and of these 299 succumbed to the disease. This disease had a serious psychological effect on its victims and it was established that such effects persisted for long periods after the disease had been cured. Several studies conducted a month after patients had been discharged revealed that thirteen to thirty two percent of them were suffering from moderate to severe anxiety and that eighteen to twenty six percent had moderate to severe depression. Another four percent were found to be suffering from Post Traumatic Stress Disorder or PTSD (Lee). The spread of SARS had a number of economic, political and sociological ramifications, due to extreme demands made on the countries, in which this disease was prevalent, by the WHO. Some of these demands were related to a curtailment if not the rescission of economic activities like trade, tourism, and investment. Despite SARS occurring mainly in Asia, its effects were experienced in almost every major market across the world. This epidemic brought about a tremendous increase in medical expenditure and travel. In addition consumer confidence and investment reached their nadir (Political Influences on the Response to SARS and Economic Impacts of the Disease).
Thursday, November 14, 2019
Use of Imagery in Chopinââ¬â¢s The Awakening Essay -- Chopin Awakening
Use of Imagery in Chopinââ¬â¢s The Awakening Several passages in The Awakening struck me because of their similar imageryââ¬âa bird, wings, and nudity. The first passage I looked at is in Chapter 9 where Edna Pontellier has a vision of a naked man ââ¬Å"standing beside a desolate rockâ⬠(47) on a beach who is watching a bird fly away. This image was evoked by a one particular piece that Mme Ratignolle plays which Edna significantly calls ââ¬Å"Solitude. â⬠Apparently Edna frequently envisions certain images while listening to music: ââ¬Å"Musical strains, well rendered, had a way of evoking pictures in her mindâ⬠(47). Listening to this piece Edna envisions a solitary, naked man with an ââ¬Å"attitude [â⬠¦] of hopeless resignationâ⬠(47). This scene presents solitude in many different ways. The figure standing alone and naked near the ââ¬Å"desolate rockâ⬠illustrates the mood of solitude and resignation. I was reminded of that scene at the end of the novel in chapter 39 where we find a description of a very similar situation. Now it is Edna Pontellier herself standing alone on the beach at Grand Isle. She takes ...
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