Friday, March 20, 2020
Wicca and Witchcraft essays
Wicca and Witchcraft essays Much of the knowledge about witchcraft is a combination of archeological data, passed down myths, and some translated historical documents. Wicca is overall a very flexible religion, representing people from many paths and backgrounds. Its not only a religion but also a way of life. At the simplest level, Wicca is a religion that embraces nature, individualism, and magic. No one can say for certain what the ancestors really did, or why (Walker 1, Kettler 1). After the Thirteenth Century, people began believing that magic was from the devil, and witches were bonded with Satan. Satan is a Christian creation of a fallen angel. Wiccans are not Christian; do not worship a Christian god, or a Christian devil. For the most part, there is no deity of ultimate evil in the Wiccan belief structure. Oppression against religious movements is as old as recorded religion. The Crusades, Christian martyrdom, the destruction of the Cathar and other "heretics", anti-Semitic actions, and the burning of African-American churches in the southern region of the United States, all reflect oppressive and sometimes genocidal acts against members of differing religious groups. Many witches, the lowest number being in the thousands, were burned at the stake, and put to death. It was not until the Eighteenth Century that the witch-hunts ended. The last big outbreak was the famous Salem Witch Trials. If one were to assume that hatred of witches is a thing of the past, one would be sadly mistaken. One has only to look as far as the media portrayal of witches and other pagans. There are those today who are convinced that the Neo-pagan movement is directed by Satan in a deliberate ploy to destroy good Christians (Baker 1-3). The Development of Wicca in the United States started in the early nineteenth century. A new natural religion gradually evolved. It gathered momentum in the mid-Twentieth Century with the Neo-Pagan movement, considered t...
Tuesday, March 3, 2020
Inventor of the Mechanical Television System John Baird
Inventor of the Mechanical Television System John Baird John Logie Baird was born on August 13th, 1888, in Helensburgh, Dunbarton, Scotland and died on June 14th, 1946, in Bexhill-on-Sea, Sussex, England. John Baird received a diploma course in electrical engineering at the Glasgow and West of Scotland Technical College (now called Strathclyde University) and studied towards his Bachelor of Science Degree in electrical engineering from the University of Glasgow, interrupted by the outbreak of W.W.1. Early Patents Baird is best remembered for inventing a mechanical television system. During the 1920s, John Baird and American Clarence W. Hansell patented the idea of using arrays of transparent rods to transmit images for television and facsimiles respectively. Bairds 30 line images were the first demonstrations of television by reflected light rather than back-lit silhouettes. John Baird based his technology on Paul Nipkows scanning disk idea and later developments in electronics. John Baird Milestones The television pioneer created the first televised pictures of objects in motion (1924), the first televised human face (1925) and a year later he televised the first moving object image at the Royal Institution in London. His 1928 trans-Atlantic transmission of the image of a human face was a broadcasting milestone. Color television (1928), stereoscopic television and television by infra-red light were all demonstrated by Baird before 1930. He successfully lobbied for broadcast time with the British Broadcasting Company, the BBC started broadcasting television on the Baird 30-line system in 1929. The first simultaneous sound and vision telecast was broadcast in 1930. In July 1930, the first British Television Play was transmitted, The Man with the Flower in his Mouth. In 1936, the British Broadcasting Corporation adopted television service using the electronic television technology of Marconi-EMI (the worlds first regular high-resolution service - 405 lines per picture), it was that technology that won out over Bairds system.
Sunday, February 16, 2020
Research paper Example | Topics and Well Written Essays - 750 words - 5
Research Paper Example They may also re-live the terrifying situations they underwent even years after the actual incidence took place. There are many veterans who return from wars in which they were exposed to terrifying situations and were expected to act in inhumane ways. They are consequently unable to fully re-adjust to civilian life. This is because there are not enough facilities that look to address this issue. The Preferable Research Design The qualitative research method is the best for studying the decision-making process in determining financial assistance for PTSD sufferers. This research design allows for information to be acquired through open ended questions in interviews. Creswell presents the main traits of five methodologies that concern qualitative research in health science literature. He also addresses the importance of using mixed methods when conducting researches that have to do with public health matters. Mixed methods allow researchers to be able to understand issues from differe nt perspectives in order to develop and further enrich the gist of any singular perspective. Mixed methods used in healthcare research also allow the researcher to contextualize information by adding information about participants like the victims of PTSD to the views of workers at the United States Department of Veterans Affairs Hospital. Using both qualitative and quantitative data is important because it allows for the researcher to be able to comprehend the existing problem better. The researcher can compare facts after verifying them in order to offer reasons for existing trends. Using both research methods also allows for having one database based on another. When a quantitative research stage is used to succeed a qualitative research stage, the intent of the researcher may be to generate a survey instrument that is based on qualitative findings. Moreover, when the qualitative research stage follows the quantitative phase, the researcher may be wanting to establish the best ra tionale with which to explain the system used to garner the quantitative results (Osborne, 2008). Problem Statement Even though the subject of PTSD cases among war veterans is openly addressed in todayââ¬â¢s society, this still does not help all soldiers suffering from this illness to be able to access treatment when they need it. There is a need to use mixed methods in research in order to enhance the quality of information gathered in a research. There are different types of problems facing the public health dispensation of services such as the provision of treatment for PTSD. Purpose of the Study The purpose of this study is to develop a design for using a mixed method study that will seek to evaluate the decision-making processes that are used to decide eligibility for funds from the United States Department of Veterans Affairs Hospital for war veterans with PTSD are verified. Part 2: Each student is to turn in a two page paper describing the research design selected suitable to address the problem and purpose of the study. Also, include a comparison chart between qualitative and quantitative data. Also, include the different qualitative approaches and their explanations. In addition, include the different quantitative approaches and their explanations. (Two pages) Qualitative method Quantitative method Instances whenResearch type is conducted Includes interviews, entries and open-ended questions Data is numerically documented Analysis style It is harder to
Sunday, February 2, 2020
Writing to Learn 3 Assignment Example | Topics and Well Written Essays - 250 words
Writing to Learn 3 - Assignment Example Lack of carbohydrates may lead to fatigue, muscle cramps and poor mental functioning. Proteins are sources of nutrients such as zinc, thiamin and riboflavin that are important in enzyme functioning (DeLuz and Hester 42). Lack of protein leads to depressed metabolism. Vegetable and fruits are rich in antioxidants. Therefore, insufficient fruits and vegetables intake leads to fatigue and mental disorders. Below is a one-day menu plan. Breakfast; Omelet of à ½ cup egg substitute, à ¼ cup chopped onion, à ¼ cup chopped green pepper and 2 teaspoons canola,1 slice whole wheat bread toasted with 1 teaspoon creamy peanut butter,1 medium orange. Lunch;3 ounces roasted chicken breast, salads of 2cups mixed greens, one tablespoon red wine, 2 teaspoons virgin oil, 2 whole grain rye crackers, 1/2 cup skimmed milk, 1 medium peach. Dinner should have 1/2 cup brown rice,1/2 cup fresh broccoli and 1 medium carrot stir fried in 2 tablespoons of extra virgin oil,3/4 cup fresh
Saturday, January 25, 2020
Quantitation by Extraction
Quantitation by Extraction Syed Masood Hassan Akbari INTRODUCTION A liquid-liquid extraction phase consists of a component (a) which is to be removed from the feed phase. The addition of a second phase (b) a solvent phase which is immiscible with the feed phase but the component (a) is soluble in both the feed phase and the solvent phase. As it happens the solute (a) is transferred from the feed phase to the solvent phase. After extraction the feed and solvent phases are called the raffinate and the extract phases respectively. Usually one of the two phases is an organic phase while the other is an aqueous phase. Under equilibrium conditions the distribution of the solute (a) over the two phases is determined by the distribution law. After the extraction the two phases can be segregated because of their immiscibility. Component (a) is then separated from the extract phase by distillation and the solvent is then regenerated. Further extractions may be carried out to remove more of the component (a). Once the product of interest has been extracted finally an absorbance reading can be found at its corresponding à »max. Figure 1: Shows the chemical structure of trimethoprim. Figure 2: Shows the chemical structure of sulfamethoxazole. This experiment consisted of three main components: The quantification of trimethoprim and sulfamethoxazole in a suspension of Septrin. Interpreting the data gathered and using it in calculating the content of trimethoprim in Septrin. Interpreting the data gathered and using it in calculating the content of sulfamethoxazole in Septrin. EXPERIMENTAL Extraction of trimethoprim and sulfamethoxazole from SEPTRIN. Figure 3: Illustrates a schematic of the entire extraction procedure consisting of trimethoprim and sulfamethoxazole in SEPTRIN oral solution. Sulfamethoxazole (Standard, Sample and Blank prep) Figure 4: Illustrates sulfamethoxazoleââ¬â¢s sample preparation. The standard was prepared in the exact manner in a 250ml volumetric flask with using 0.2g of sulfamethoxazole in 50ml 0.1M NaOH and topping up with water. The procedure to follow was the exact same as the sample prep. The blank was prepared in the same manner and water was used along with the reagents outlined above in sample prep. Trimethoprim (Sample and Blank prep) The already extracted bottom layer with chloroform was extracted again using four 50ml quantities of 1M acetic acid and the top layers were combined and washed with 5ml chloroform and the top layer added to a 250ml volumetric flask and filled with 1M acetic acid to the mark. 10ml of this solution was then added to another 100ml volumetric flask and 10ml of 1M acetic acid was also added and topped up with water. The blank was made by using 0.2M acetic acid solution. RESULTS Determining the quantity of trimethoprim and sulfamethoxazole in an oral suspension of SEPTRIN. Table 1: Shows the absorbance values obtained at each respective Ãâ â⬠ºmax for trimethoprim and sulfamethoxazole. Calculations: Trimethoprim The sample had a dilution factor of 1:1000 which meant that there were two dilutions carried out where the suspension was diluted to 250ml, which is a 1:100 dilution. Secondly the sample was diluted too 100ml, which is a 1:10 dilution. These two dilutions steps combined gave a 1:1000 dilution factor. The calculations were carried out as below. 2.5ml in 250ml 1:100 (Dilution ratio) 1:10 (10ml in 100ml) Therefore 1:1000 dilution factor. Absorbance: 0.332 x 1000 = 332 A1%/1cm=204 so 1% solution has 204 absorbance 1%conc = 204 X = 332 332(1)/204 = x X= 1.627% w/v It complies with the compliance limit of (1.44-1.76)% w/v. Sulfamethoxazole 0.2g in 250ml 200mg in 250ml (1:100 dilution ratio) 0.8mg in 1ml (1:50 dilution) 0.016mg in 1ml (1:10 dilution) 0.0016mg in 1ml Sample of sulfamethoxazole absorbance = 0.075 So, 0.0016mg in 1ml = 0.293 And, x = 0.025 0.0250.0016/0.293 = x X = 0.0001365mg in 1ml 0.0001365mg in 1 ml x 50000 = 6.826mg in 1ml 6.826mg in 1ml à ¯Ãâà 0.06826g in 1ml à ¯Ãâà 6.826g in 100ml X = 6.826% w/v It does not comply with the compliance limit of (7.4-8.6)% w/v. Trimethoprim and Sulfamethoxazole The concentration of trimethoprim and sulfamethoxazole in 5ml of SEPTRIN were calculated as shown below. Trimethoprim: 1.627% à ¯Ãâà 1.627g in 100ml So, x in 5ml 100x = 8.135g X = 0.08135g in 5ml SEPTRIN Sulfamethoxazole: 6.826% à ¯Ãâà 6.826g in 100ml So, x in 5ml 100x = 34.13g X = 0.3413g in 5ml SEPTRIN CONCLUSION The active ingredients in SEPTRIN, trimethoprim 1.627% w/v and sulfamethoxazole 6.826% w/v were segregated by extraction. The concentrations of trimethoprim and sulfamethoxazole in the 2.5ml suspension were calculated to be as stated above respectively. The content of trimethoprim fell within the compliance limit but for the sulfamethoxazole the content fell a bit short of the compliance limit suggesting apparatus malfunction or human error in making up sample. Trimethoprim complies with the limit set out on the BP but for sulfamethoxazole it falls under the limit stated on the BP. QUESTIONS Illustrate the extraction procedure. Support the separating funnel in a ring clamp on a ring stand. Make sure the stopcock of the funnel is closed. Place a stemmed funnel in the neck of the separating funnel. Add the liquid to be extracted, then add the extraction solvent. The total volume in the separating funnel should not be greater than 75% of the funnel volume. Insert a stopper in the neck of the separating funnel. Pick up the separating funnel with the stopper in place and the stopcock closed, and shake it once gently. Point the stem away from your face and slowly open the stopcock to release some build-up of excess pressure, reclose the stopcock and repeat this procedure until only a small amount of pressure is released with it is vented. Shake the funnel vigorously for a minute, release the pressure and then again repeat the step of shaking a few times till there is less pressure and the solutes are at equilibrium between the two solvents. Place the funnel back into the ring and let it rest undisturbed until the layers are clearly segregated. While waiting, remove the stopper and place a beaker under the separating funnel. Carefully open the stopcock and allow the lower layer to drain into the beaker. Drain just to the point that the upper liquid barely reaches the stopcock. The top layer can be left in the separating funnel if further extractions need to be carried out which do need to be carried out. When finished with the separating funnel store the stopper away from the funnel. Explain why sulfamethoxazole is soluble in the alkaline aqueous solution and trimethoprim is not? It is already known that trimethoprim is classified as a benzylpyrimidine and it protentiates the antimicrobial activity of sulphonamides eg., sulfamethoxazole. So trimethoprim has a tendency to form insoluble complexes when combined with sulfamethoxazole in alkaline aqueous media. Write out the chemical reaction which leads to the coloured product. The reaction mechanism above shows the coloured dyeing agent N-(naphthalene-1-yl)ethane-1,2-diamine reacting with the diazonium to form the coloured product. Why is ammonium sulphanate added? What would happen if it was forgotten? AMS is used as a reagent to speed up the chemical reaction if it is not included in the reaction before adding the dying agent then the process will either delay in reaching to its completion or not reach it at all. After extraction of sulfamethoxazole, how is the organic solvent processed? The organic solvent was extracted in four 50ml quantities of 1 M acetic acid. The upper layers were all combined and kept and washed with 5ml of chloroform. The top layer was then dispensed into a 250ml volumetric flask and topped up with 1 M acetic acid. 10ml of this solution was transferred to a 100ml volumetric flask, 10ml of 1 M acetic acid was also added and the flask was topped up with water. A blank was made and the sample from the organic layer was read at 271nm.
Friday, January 17, 2020
The Fluidity of War. Gender Norms & Racial Bias in the Study of the Modern “War”
War is an organized and often prolonged conflict that is carried out by states or non-state actors. It is generally characterised by extreme violence, social disruption, and economic destruction. War should be understood as an actual, intentional and widespread armed conflict between political communities, and therefore is defined as a form of political violence or intervention. The set of techniques used by a group to carry out war is known as warfare. An absence of war is usually called peace. In 2003, Nobel Laureate Richard E.Smalley identified war as the sixth biggest problem facing humanity for the next fifty years. In the 1832 treatise On War, Prussian military general and theoretician Carl von Clausewitz defined war as follows: ââ¬Å"War is thus an act of force to compel our enemy to do our will. â⬠While some scholars see warfare as an inescapable and integral aspect of human nature, others argue that it is only inevitable under certain socio-cultural or ecological circ umstances. Some scholars argue that the practice of war is not linked to any single type of political organization or society.Rather, as discussed by John Keegan in his History of Warfare, war is a universal phenomenon whose form and scope is defined by the society that wages it. Another argument suggests that since there are human societies in which warfare does not exist, humans may not be naturally disposed for warfare, which emerges under particular circumstances. The deadliest war in history, in terms of the cumulative number of deaths since its start, is the Second World War, with 60ââ¬â85 million deaths.Proportionally speaking, the most destructive war in modern history has been claimed to be the War of the Triple Alliance, which took the lives of over 60% of Paraguay's population. Etymology The English word war derives from the late Old English words wyrre and werre; the Old North French werre; the Frankish werra; and the Proto-Germanic werso. The denotation of war deriv es from the Old Saxon werran, Old High German werran, and the German verwirren: ââ¬Å"to confuseâ⬠, ââ¬Å"to perplexâ⬠, and ââ¬Å"to bring into confusionâ⬠.Another posited derivation is from the Ancient Greek barbaros, the Old Persian varhara, and the Sanskrit varvar and barbara. In German, the equivalent is Krieg; the equivalent Spanish, Portuguese, and Italian words for ââ¬Å"warâ⬠is guerra, derived from the Germanic werra . Etymologic legend has it that the Romanic peoples adopted a foreign, Germanic word for ââ¬Å"warâ⬠, to avoid using the Latin bellum, because, when sounded, it tended to merge with the sound of the word bello .The scholarly study of war is sometimes called polemology, from the Greek polemos, meaning ââ¬Å"warâ⬠, and -logy, meaning ââ¬Å"the study ofâ⬠. Types of war War, to become known as one, must entail some degree of confrontation using weapons and other military technology and equipment by armed forces employing mi litary tactics and operational art within the broad military strategy subject to military logistics. War Studies by military theorists throughout military history have sought to identify the philosophy of war, and to reduce it to a military science.Modern military science considers several factors before a national defence policy is created to allow a war to commence: the environment in the area of combat operations, the posture national forces will adopt on the commencement of a war, and the type of warfare troops will be engaged in. Conventional warfare is an attempt to reduce an opponent's military capability through open battle. It is a declared war between existing states in which nuclear, biological, or chemical weapons are not used or only see limited deployment in support of conventional military goals and maneuvers.The opposite of conventional warfare, unconventional warfare, is an attempt to achieve military victory through acquiescence, capitulation, or clandestine suppor t for one side of an existing conflict. Nuclear warfare is warfare in which nuclear weapons are the primary, or a major, method of coercing the capitulation of the other side, as opposed to a supporting tactical or strategic role in a conventional conflict. Civil war is a war where the forces in conflict belong to the same nation or political entity and are vying for control of or independence from that nation or political entity.Asymmetric warfare is a conflict between two populations of drastically different levels of military capability or size. Asymmetric conflicts often result in guerrilla tactics being used to overcome the sometimes vast gaps in technology and force size. Intentional air pollution in combat is one of a collection of techniques collectively called chemical warfare. Poison gas as a chemical weapon was principally used during World War I, and resulted in an estimated 91,198 deaths and 1,205,655 injuries.Various treaties have sought to ban its further use. Non-let hal chemical weapons, such as tear gas and pepperà spray, are widely used, sometimes with deadly effect. Behaviour and conduct in war The behaviour of troops in warfare varies considerably, both individually and as units or armies. In some circumstances, troops may engage in genocide, war rape and ethnic cleansing. Commonly, however, the conduct of troops may be limited to posturing and sham attacks, leading to highly rule-bound and often largely symbolic combat in which casualties are much reduced from that which would be expected if soldiers were genuinely violent towards the enemy. Situations of deliberate dampening of hostilities occurred in World War I by some accounts, e.
Thursday, January 9, 2020
Gerontology An Umbrella Term Covering A Wide Range Of...
Gerontology is an umbrella term covering a wide range of professions that study various aspects of aging including social, psychological, cognitive and biological. Unlike geriatrics, a more familiar term that most associate with aging, gerontology is concerned specifically with the social, psychosomatic and biological facets of aging. It is the study of aging across the lifespan, while geriatrics is focused on the aging process amongst only older adults and is associated with internal medicine. Gerontology might predict life expectancy, while the purpose of geriatrics is to improve the life expectancy of older people through an understanding and promotion of good health. A gerontologist, then, is a health care specialist whose work focusses on the effects of aging. Gerontologists are concerned with four area of aging: 1) Chronological aging which is focussed on the years a person has lived since they were born 2) Biological aging meaning the physical changes a person experiences throughout their lifespan 3) Psychological aging which refers to emotional, perceptual, cognitive and adaptive changes 4) Social aging which covers the changes in relationship and roles within the family and the productive roles of individuals with organizations they might be connected to. Gerontologists work in a variety of environments including long-term care facilities, clinical practice, counselling centres, hospice services, home health care services, research communities and government
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