Story Essay Example | Topics and Well Written Essays - 250 words - 6

Story - Essay Example In many occasions, the issue of plagiarism is not raised in the legal field, normally because repeatedly there is no room for inventiveness when drafting legal documents. This specific case began with a sad case that involved a family and their child. The family filed a case against British Columbia Women Hospital and Health Care Center and they won an enormous judgment. However, when the health care center went through the ruling of Judge Joel Groves, they found out that he had picked a large portion of his judgment from the complainant’s filings. The hospital went forward to file an appeal, stating that the plagiarism found in his ruling was a sign that the judge did not handle the case correctly and that he was prejudiced against the hospital. The case went to the Canadian Supreme Court and a ruling was made in 2013 (News, 2013). News, C. (2013, May 24). CBC News-British Columbia. Top court reinstates $4M award in plagiarizing-judge suit, 1. Retrieved from

Gender and the Media Essay Example for Free

Gender and the Media Essay Socialisation is the way an identity is defined throughout life for a person. Children are seen a blank slate that is going to have a personality and roles set by the environment he lives in. A child generally has an idea on what gender they are by the time they are 2 years old. A boy will portray himself with the colour blue, would be very hyperactive and tend to bully girls. Females would be more mature, refer themselves to the colour pink and socialise with other girls, this is called primary socialisation. Personalities are defined through interactions with people that are close to them, there societys values and they learn the attributes of their sex at a young age and they know what is expected of them as a certain sex. The person is reinforced by social praise and punishment so the person can learn from mistakes and good deeds. Media has played a massive part on how socialisation as occurred to an individual. I am directly concerned with how the media affects young women within todays society, particularly through the use of gender stereotyping within young womens magazines, mainly through articles and advertisements. Here, the ideas and beliefs already created by the media are useful to advertisers because they are socially accepted ideologies. They know that they will influence women. It has been stated in the past that it is these media interpretations of The Perfect Woman that have been the cause for so many women becoming increasingly pressured into looking good and so dieting, keeping fit etc. This can, in extreme cases lead to serious psychological diseases such as anorexia and bulimia, where one of the main causes has been identified as social pressure. Society affects how people perceive themselves, Body Image awareness still exists in our society. Many people living on our society are influenced by the media and the fashion industry. Both are equally responsible for the increased number of people suffering from eating disorders. Fashion industries tend to only feature whose figures vary from eight to ten. Their androgynous waif-like figures are presented as representative of the everyday woman. In doing so the average woman in the street is forced to measure herself against an unrealistic ideal. Most models are above average height, have naturally lithe bodies and are aged between sixteen and thirty. Their image is constructed and manipulated by a predominately male homosexual industry which appears reluctant to show women as curvaceous individuals. Celebrities themselves fall foul of the dominant media representation of women. When society thinks of a family we automatically think of the nuclear family in which there is a mum, dad and often two or three children. This type is seen as the statistical norm until the 1980s where it was considered abnormal to deviate from this ideal family type and there were characteristics that came with this which were seen as socially acceptable. Children were seen as the outcome of a loving heterosexual couple and each person i. e. the mum and dad should have distinctive roles within the family. The mother should be concerned with motherhood and household chores. The father should protect the family and be a disciplinary role model, as well as their main role being defined as the breadwinner, this meaning they often bring in the most money. The mother should be the housekeeper who attians the house and looks after the children as they grow up. A young male would grow up learning the princilpes of the father and the young female would grow up adobting the mather principles. Post modernism shows that gender is the main topic in an individuals life as events that have occurred are directly linked to a individuals gender. Post modernism gives the individual more choice and that is the basis of post modernism, choice! The individual is more independent on their life choices; such old life ambitions of marriage and children are not compulsory but are a option that some people may seek. Unlike pre modernism and modernity where marriage and kids are ultimate goals and people automatically assume that this is the right path to follow. This gives way to new events that once were either not existent or unethical such as unisex and inter-racial marriages. It shows a deterioration of religion and supernatural belief, which leaves great division among people in identity and lifestyles. People are now working more flexible times, fashion has changed in such away that people can wear what they want, food is more oriental and music comes in a wide variety. Identity has separated into many huge groups such as social classes, ethnic group, age and gender. This leads to unrest to certain groups that want change as people now have a sense of spreading opinion and arguing their rights. Certain groups such as feminists, Marxist ideology and ageist rights. As choice and individual opinion now can be widely credited it gives chance for concern to be broadcasted such as the feminist supporters wanting females to be treated as equals among men. The first wave of feminism gave people the ideology in 1928 when they got the vote, which provoked the idea of gaining more such as the 2nd wave of feminism in the 1960s when women burned the bras, this caused great reasoning between the two gender differences. Karl Marx however says that society not the individual is the important issue as that eventually the working class will soon rule society. This radical change has brought in new changes such as the new man that is a unique gender that of a masculine and unemotional male, the new man focuses on his physical appearance and pays attention to diet, personality and self image, he is more emotional and doesnt fit in with a patriarchy idea. As post modernism has totally effected todays society it shows how an individual can make all the differences and how self concern and freedom is the new ideal but this idea could change and evidence suggests that it could lead to pre modernism of the old age as though it is a long term cycle of a society but critics say this is the final situation of society and the end solution is total equality among genders, races and age. This idea of choice could lead in any direction depending on current affairs within society yet time is not a important issue as this process could last a log time.

Types of Poisonous Snakes and Snake Venom

Types of Poisonous Snakes and Snake Venom In the fourth century BC, India was invaded by Alexander the Greats army, which was accompanied by a number of Macedonian physicians and observers. They were impressed by the achievements of the local Ayurvedic practitioners, particularly in the treatment of snake bite (1). Unfortunately, the legacy of ancient skills, experience and wisdom may have held back rather than encouraged the application of modern scientific research methods to manage this continuing scourge of rural life in India (2).In India, snake envenomation is a huge public health problem, but unfortunately it hasnt got its due attention. There is scant information on epidemiology and minimal research on anti venom. Most of the quoted figures on snake bite are hospital based though most bites occur in villages and among poor population, who rely largely on traditional treatment. Recent Global Snake Bite Initiative of the International Society on Toxicology and by the World Health Organisation, is expected to throw more light on epidemiology and treatment of snake bites (3). Of the 3,000 or so snake species that exist in the world, only about 15% are venomous. Venomous snakes exist on every continent except Antarctica. In India the Big Four (Cobra, Krait, Saw scaled and Russels viper) are the key poisonous snakes(4).Though the hospital records show only 1,300 annual deaths but a recent Nationally Representative Mortality Survey puts this figure to approx. 45,900 deaths a year. Snakebite remains an underestimated cause of accidental death in modern India. Community education, appropriate training of medical staff and better distribution of antivenom, especially in the states with the high prevalence, could reduce snakebite deaths in India(5). Historical Background: Since time immemorial snake has been an object of worship in many countries. According to Hindu mythology this world is resting on a many-headed cobra. Lord Vishnu lies on Sheshnag. The Cobra coils around Lord Shiva. Old Egyptian nobility are pictured with cobra hood on their forehead. Some cultures held snakes in high esteem as powerful religious symbols. Quetzalcoati, the mythical plumed serpent was worshipped as the master of life by ancient Aztecs of Central America. Some African cultures worshipped rock pythons and considered the killing of one to be a serious crime. In Australia, the Aborigines associated a giant rainbow serpent with the creation of life. In Jewish texts, in the old Maya civilization, in Kundalini yoga, theosophy and in many medieval society emblems the world over, snakes form an essential symbol. This shows how intimate has been the historical, social and mythological association of snakes with the mankind and no wonder the cobra is wors hipped in India on Naga Panchami day. Ayurvedic texts written by Vagbhata and Sushruta, have given in fair detail the classification of snakes according to their symptoms and their poisoning. There are many stories about constrictors, particularly anacondas in the Amazon and pythons in the east, which are said to have strangled adult humans, these need to be treated with great deal of skepticism (6,7,10). In practice it is only the poisonous snakes that are of interest. Poisoning from snake bite is an important medical emergency in Africa, South America, India, Pakistan and greater part of south East Asia. Epidemiology As snake bite is not a notifiable illness, there is little reliable information on incidence of snakebite in many parts of the world. Snake bite is an important occupational injury affecting farmers, plantation workers, herders, and fishermen. Open-style habitation and the practice of sleeping on the floor also expose people to bites from nocturnal snakes. Bites are more frequent in young men, and generally occur on lower limbs. The incidence of snake bites is higher during the rainy season and during periods of intense agricultural activity (6). Available data shows 30,000-40,000 deaths from snakebites every year but this figure probably is an underestimate (8), because of incomplete reporting. Recent global estimates suggest 2.5 million bites and 85000 annual deaths. In India recent published literature suggests yearly 45,900 deaths due to poisonous snakebites and 5.6-12.6 deaths per 100,000 population in some states appears to be realistic(4,5). Upto 80% of snake bite patients in developing countries, first contact traditional practitioners, before visiting a medical center (6,7,9). Owing to the delay in reaching hospital many patients die enroute. Going by the fact that around 85-90 % snakes are non-poisonous and even 50% of bites by poisonous snakes are dry runs, number of snakebites in India are enormous(4). Myanmar probably has highest mortality figure in Asia, where over 70% bites are by Russells viper. In India, Maharashtra records the highest number of snakebites, followed by West Bengal, Tamil Nadu, Uttar Pradesh and Kerala. In Maharashtra alone, 70 bites per 100,000 population occur yearly with 2.4 per 100,000 mortality. Rajasthan and Jammu region of JK also report large number of viper bites (up to 95% of all bites (10). During rains and floods number of cases shows a steep rise. Most bites occur between 0400 hours to midnight and mere observation that majority of bites are on lower extremity suggest that snake is inadvertently trodden upon. In India 2/3rd of bites are due to saw scaled viper, about 1/4th due to Russells and a smaller proportion due to cobra and Krait. In neighboring Sri Lanka Daboiarussellii accounts for 40% and in Myanmar 70% of snake bites (11,12). For correct epidemiological studies one requires enzyme-linked immunosorbent assay to identify antigen and antibody. This permits reliable identification and sensitive quantification of venom antigens and antibody. Natural antibody is detectable in serum by one week of bite, which rises to peak by one year and falls to low levels by 3 years, though may be detectable for up to 40 years after bite. Anti snake venom reduces but doesnt abolish the generation of antibodies. In some countries e.g. Australia, ELISA is routinely used for identification of poison (13). Anatomy and Habits Snakes belong to order Ophidia of the Reptilia general class. Over 3000 species are encountered in the world of which less than 15% are poisonous. Most of these are found in tropical and subtropical regions, Australia and throughout USA except in Alaska, Maine and Hawaii. In India 216 species from 9 families are reported of which 52 species from 3 families are poisonous. Most snakes are non-venomous, have no fangs and belong to colubrid family; a few colubrids are technically poisonous having a venom gland connected to a solid fang at the back of mouth. Bites from back fanged colubrids are generally harmless to man but with some species like African boomslang, Dispholidustypus, serious and even fatal poisoning has been reported in the snake handlers(13). The three families of front fanged poisonous snakes are elapids, vipers and sea snakes. Elapids are land snakes with non-mobile 3-5 mm long fangs in adults. Vipers have 10-30 mm long fangs which are easy to see when erected, but diff icult to see when folded against upper gum. Vipers are divided into crotalids or pit vipers who have heat sensing pit between eye and nose and viperidae which dont have the pit. Sea snakes have very short immobile fangs and flat rudder like tails. There are mainly 4 poisonous snakes encountered in India i.e. Cobra, Krait, Saw scaled and Russells viper. New addition to Big Four is Hump-nosed Pit viper (Hypnale hypnale), recently being reported from India though existent for more than 100 years(16). This has been mistaken for Saw Scaled Viper by most. It is identified by larger, triangular head ending in a snout with large scales on the head in contrast to the small scales of saw scaled viper. The envenomation is manifested by coagulopathy and renal failure. It is reported as one of the most poisonous snakes in India but specific anti venom against this is not available (12). Common poisonous snakes found in India are as below; Viperidae * Saw scaled viper (Echis carinatus) * Russells viper (Vipera russelli) Elapidae * Indian Cobra (Naja naja) * Common Krait (Bungarus caeruleus) Crotalidae * Pit Viper Hydrophidae * Sea snakes Cobra is 1.2-2.1 meters long while King Cobra may be as long as 5.5 meters. Cobra is usually slate gray to brown. The back of hood may or may not have a pattern. They raise their hood when aroused or threatened. They try to avoid mankind unless they are too close or are trodden upon. The distance a cobra can strike in forward direction is the height its hood rises above the ground. Some cobras however can spit venom upto a distance of 3 meters. This can cause redness, corneal abrasions/ulcers etc. King cobra is uniformly olive, brown or green with ringlike cross bands of black. Although it is the largest venomous snake in the world but it avoids attacking another venomous snake for fear of being bitten, therefore it feeds only on harmless species. Females build a nest and then deposit the eggs. Lying close by, she guards the nest and is highly aggressive towards anything which approaches the nest.The king cobra is found in the forests or their vicinity in the Himalayas, Bengal, Assam and South India. The common Indian cobra is found in jungles but also in open country with or without vegetation; in gardens, drains, cultivated fields, and populated areas in mans proximity; in stacks of wood and under rubbish, in loose masonry, crevices of walls and building ruins; in old cemeteries, in temples or mosques.It is often seen in dark corners of bathrooms, stables and servant quarters of old bungalows. It may be found in old hole of a tree, in ant-hill or a rat burrow. It can climb trees and swim well. It feeds on rats, mice, frog; less frequently on birds or their eggs; and sometimes on chickens, squirrels, lizards and other snakes. It is usually diurnal in habit but in populated areas it is more nocturnal(14,15). Krait is black or bluish black with white narrow crossbands and a narrow head. Its average length is 90cm 150 cm. It is found only in Asia. It is active during night and passive during the day. It is found in plains, cultivated fields and human habitations. It has tendency to seek shelter in sleeping bags, boots and tents.Kraits are mostly found in Eastern India, Assam, Bengal and parts of South India and patches all over the country. There are two varieties, banded and non-banded. Although it has most potent venom of all land snakes, it is rather shy and bites human beings least commonly (13,15). Vipers are so called because they are viviparous. There are 110 kinds of vipers and all are poisonous. Vipers have broad plates extending right across the belly and small scales on the head similar to those on the body. Body is light brown and their back is usually covered with black blotches of inverted V shaped markings. Some of the pit vipers have large shield on the head. Russells viper or Daboia is a big stumpy snake  ½-2 meters long with short tail and characteristic marking as described above. It is irritable. When threatened it coils tightly, hisses and strikes with a lightning speed, that victim has no chance of escaping. Indian pit vipers are generally found in hilly areas of Western Ghats and Sunderbans in West Bengal.Russells viper prefers open country, cultivated fields and bushy or grassy fallow lands. It is nocturnal in habit. It is commonly found in plains of Punjab, Bombay, Madras area and Brahamputravalley(4,6,20). Saw scaled viper (Echiscarinatus) is found all over India but particularly in Western India, Punjab, and around Tiruchirapalli. It prefers open dry rocky country or arid deserts.Saw Scaled Viper (Phoorsa) is responsible for maximum bites and deaths all over the world than any other snake. This small stumpy snake measures 25-60cmand camouflages well with the surroundings. Colour is light buff with shades of brown, dull red or gray. Its sides have a white or light coloured pattern. Its head usually has dark stripes that start behind the eye and extend to the rear. It gets its name from the fact it rubs its own body from sides and produces rasping sound. This ill- tempered snake attacks any intruder. It is common in rural settlements, cultivated fields and regions, barns, and rock walls(4,14). Sea snakes resemble cobra and its allies in structure of their fangs and most other characters. Most of them are 3-4 ft. long, and a few may attain a length of 8 feet. Their tails are laterally flattened and are sculled in paddle -like fashion during swimming. Most sea snakes are covered with small round scales and lack the enlarged ventral scales found in terrestrial species. The nostrils are valvularand hey can be closed when snake submerges- and may be displaced towards the top of the head. Excess salt from the sea water and diet is excreted through special glands in the snakes mouth. Venomous sea snakes mostly inhabit the waters of Australia, Indonesia, Southeast Asia and India. Of the more than 50 species some are many times more poisonous than land snakes, with venom 10-40 times more potent than that of cobra. Except for a single species found in creeks and river estuaries sea snakes are all poisonous. They however have a narrow gape and rarely bite effectively.Their bite is re latively painless and, amazingly very low percentage of patients suffer significant envenomation during the attack. In a census in Malay Peninsula less than 25% developed features of poisoning and a small percentage became critically ill (4,12,14). Snakes have a good sensory perception with primitive ears. Their vision is limited to few meters only, with better acuity for moving objects. Lower jaw is a pair of bones joined together centrally by an elastic ligament which doesnt articulate with maxilla thus enabling the snake to swallow its prey as a whole. Fangs are modified teeth on pre maxilla. Venom is secreted from parotid glands and is meant to immoblise the small creatures like rat. Man is an innocent coincident victim. Bite is a well coordinated act involving movement of head and body. It involves coordinated positioning of head, opening of mouth, attack by forward thrust of body and head, piercing the skin by fangs and injecting the venom while the wound is deepened by contraction of temporalis muscle. Vipers have holes at the tip of fangs while elapids have gutters in the fangs(14,15). Identification of Poisonous Snakes Most of the bites are by non-poisonous snakes, but the intense fear of snake bites may cause acute panic reaction or feeling of impending death. If the patient has brought snake to the attending doctor, proper identification can help institute early and appropriate treatment to the victim and also alleviate undue emotional disturbance. Some of the important differentiating features of poisonous from non-poisonous snake are appended below(13,18). (a) Fangs: The most distinctive feature of poisonous snakes is the fangs. These are modified teeth in the upper jaw, generally two in number, one on either side. They communicate with salivary glands and are hollow or grooved. In elapidae and sea snakes they are located in front, are short and immobile while they are large, curved and have wide range of movement in vipers. (b) Scales on Belly: In poisonous snakes the belly scales are large and extend all across the belly. In non-poisonous snakes belly scales are small and generally dont extend across the belly. (c) Head: Vipers have heavier triangular head with small scales all over. In case of pit vipers a pit is located between the nostril and the eye. Cobra and Krait have large head scales. In cobra upper third labial is largest and touches the eye and nasal shield. In Kraits upper third labial does not touch the eye and nose, but the fourth lower labial scale on the under surface of mouth is the largest. All the poisonous sea snakes have large scales on the head and valved nostrils. (d) Pupil: Poisonous snake have generally elliptical or vertical slit. However pupils are round in elapidae (cobra) and most non-poisonous snakes. (e) Body design: Krait has central row of large scales on dorsal side, which are almost hexagonal. It has paired white or black stripes across the body in the banded Krait. Some cobras have spectacle-like mark on their hood. (f) Fang marks: In non-poisonous snakes since all teeth are at same level so bite is stretched and bite marks are along a curved line i.e. row of bites,as in human bite. Bite site can be easily made out. In poisonous snakes since poisonous teeth are generally two (fang marks) and other teeth areat lower level, so only two,1-2 cm spaced puncture marks are seen. A distance of less than 10 mm signifies a small snake while a distance of over 15 mm is suggestive of a large snake. Sometimes one requires hand lens to identify these marks especially in cases of cobra or Krait bite. It is noteworthy that the size of the venom fangs has no relation to the virulence of the venom. The comparatively innocent Indo-MalayLachesis  have enormous fangs, whilst the smallest fangs arefound in the  Hydrophids  which possess very potent venom. (g) Sound: Most venomous snakes produce characteristic sounds, which may also help in recognition of snake. Russells viper produces Hissing, saw scaled viper Rasping and King Cobra Growling sounds. Easy identification of different snakes is as follows: Cobra: Hood while alive, large scales on head. Pupil is round and 3rd upper labial touches the eye and nostril. Large belly scales extend acrossthe width. Krait : The fourth lower labial scale on the under surface of the mouth isthe largest. Hexagonal large scales in the central row on dorsal side. Body may be banded. Belly scales extend across the width. Viper : Triangular heavy head with small scales all over. Large belly scales extend across the width. Snake Venom Snake venoms are the most complex of all natural venoms and poisons. The venom of any species might contain more than 100 different toxic and non-toxic proteins and peptides, and also non-protein toxins, carbohydrates, lipids, amines, and other small molecules. The toxins of most importance in human envenoming include those that affect the nervous, cardiovascular, and haemostatic systems, and cause tissue necrosis (21). Snake venom is primarily meant to paralyse the prey, man is only accidental victim to whom snake strikes if threatened. Proteins constitute 90-95% of venoms dry weight and they are responsible for almost all of its biological effects. Venom is made up of toxins, nontoxic proteins (which also have pharmacological properties), and many enzymes especially hydrolytic ones.  Enzymes (molecular weight  13-150 KDa) make-up 80-90% of viperid and 25-70% of elapid venoms: digestive hydrolases, L-amino acid oxidase, phospholipases, thrombin-likepro-coagulant,andkallikrein-like serine proteasesand  metalloproteinases  (hemorrhagins), which damage vascular endothelium. Polypeptide  toxins (mol weight 5-10 KDa) include  cytotoxins,  cardiotoxins, and postsynaptic neurotoxins (suchas  ÃƒÅ½Ã‚ ±-bungarotoxin  and  ÃƒÅ½Ã‚ ±-Cobratoxin). Compounds with low molecular weight (up to 1.5 KDa) include metals, peptides, lipids, nucleosides, carbohydrates, amines, and oligopeptides, which inhibit angiotensin converting enzyme (ACE) and potentiate bradykinin (BPP).  Phosphodiesterases  interfere with the preys cardiac system, mainly to lower the  blood pressure.  Phospholipase A2  causes  hemolysis  by lysing the  phospholipid  cell membranes  of  red blood cells.  Amino acid  oxidasesand  proteases  are used for digestion. Amino acid oxidase also triggers some other enzymes and is responsible for the yellow colour of the venom of some species.  Hyaluronidase  increases tissue permeability to accelerate absorption of other enzymes into tissues. Some snake venoms carry fasciculins, like the  mambas  (Dendroaspis), which inhibit  cholinesterase  to make the prey lose muscle control (22,23). The most lethal venoms are those of elapids and sea snakes. These toxins are rapidly absorbed into the blood stream thereby causing rapid systemic effects. Large molecular weight viper toxins are absorbed slowly through lymphatics thereby staying longer at local site, hence more local effects. Pathophysiology of ophitoxemia is basically dependent on disruption of normal cellular functions. Some enzymes like hyaluronidase disseminate venom by breaking down tissue barriers. Ophitoxemia can lead to increase in vascular permeability thereby causing loss of blood and plasma volume in extravascular space. Collection of this fluid is responsible for edema and fluid loss, if significant it can lead to shock. Venom also has cytolytic effect leading to necrosis and secondary infection. Neurotoxic effect may lead to paralysis, cardiotoxic effect can cause cardiac arrest and likewise myotoxic or nephrotoxic effect can lead to rhabdomyolysis and renal failure. Ophitoxaemia also can lead to coagul ation disturbances. Among the various species, the lethal dose of venom, for cobra is 120 mg, Krait 60 mg and for Russells viper and saw scaled viper is 150 mg respectively. But clinical features and outcomes are not predictable as every bite does not cause complete envenomation. Pathological effects of venom may not be noticed until about six hours (varying between 1.5-72 hours), and it may remain functionally active causing persistent coagulopathy even after three weeks of bite. Hence duration of antigenemia is an important determinant for the extent of pathological effect. It has been unequivocally proved by studying the venom levels by enzyme linked immunosorbent assay (ELISA), that effects due to envenomation depend on venom hours (i.e. Blood venom level x time elapsed between bite and institution of treatment) rather than blood levels alone. Hence with the same level of venom, features due to envenomation may become progressively severe with passage of time (14,20). There are four distinct types of venom effects: Proteolytic  venom  dismantles the molecular structure of the area surrounding and including the bite. Hemotoxic  venoms  act on the heart and cardiovascular system. Neurotoxic  venom  acts on the nervous system and brain. Cytotoxic  venom  has a localized action at the site of the bite. Pathophysiology of various biological effects of snake envenomation The following few paragraphs shall describe the biological effects of venom. (a) Local Swelling: Most viper bites cause local swelling at the site of bite, which starts within minutes of bite and massive swelling of the limb may develop within 48-72 hours. This is usually the result of hemorragins in the venom. This opens the endothelial pores resulting in leakage of plasma or whole blood. At times leakage may be so much that patient develops hypovolemic shock. This swelling is not due to any venous occlusion or infection. If the exudation is of whole blood, then later discoloration of the limb may develop. In contrast to Echis, in European adder V berus bites, spontaneous bleeding is rare but discolouration is common. Sometimes local swelling is delayed and compartment syndrome may result(10,13,17). (b) Local Necrosis: In viper bites local necrosis appears late if at all and if it occurs, it is due to ischemia, mimicking dry gangrene. On the other hand in Cobra bite local necrosis appears early. Local swelling may develop after 2-3 hours but necrosis develops rapidly after that. It is due to cytolytic factors present in the venom and is a wet gangrene. As this dead tissue provides ideal setting for anaerobes, hence the putrid smell. An early excision is warranted (13). (c) Non-specific early symptoms: With bites of some vipers e.g. V berus, V xanthina, Australian elapids, some rattle snakes etca few symptoms are common. Vomiting, headache, abdominal pain, explosive diarrhea and collapse can occur. These features resolve in 30-60 minutes, suggesting activation of kinin system followed by inhibition of bradykinin (13,17). (d) Shock: It can develop due to extensive volume leak from vessels in cases of viper bite. It can result even before a limb gets swollen. Pulmonary intra vascular clotting, pulmonary edema and cardiac effects can be contributory factors for shock. (e) Spontaneous haemorrhage: Haemorrhages can develop in patients with viper bites even days after the bite. These at times may be life threatening especially if they occur in brain. Local blisters at bite site appear to be depot of venom, which dont get targeted by anti snake venom. Therefore one must keep in mind the delayed absorption from bite site in patients who present with late bleeding manifestations despite having been given anti-snake venom a few days back. (f) Effect on Circulation: Some viper venoms contain procoagulant activity which activates prothrombin to thrombin; which in turn converts fibrinogen to fibrin while in others procoagulant venom may directly affect fibrinogen. This fibrin formed is susceptible to lysis unlike natural fibrin thus resulting in poorly clottable or non-clottable blood because of absent or very low levels of fibrinogen. It should be remembered that bleeding manifestations during envenomation are not generally due to coagulation disturbances but rather due to haemorrhagin. Platelet count may also be low though usually it is normal. Low platelet count is due to consumption of platelets in the repair of endothelial damage. Polymorphonuclearleucocytosis is common in all forms of envenomation especially severe envenomation. Both viper and elapidae bite may have hemolytic activity in vitro but abnormal hemolysis is rarely of clinical importance except probably in renal failure (13,17). (g) Renal Failure: Renal failure is a common manifestation of viperine envenomation especially where treatment has been delayed. On renal biopsy acute tubular necrosis is the commonest underlying lesion in 50-70% of cases and acute cortical necrosis (patchy / diffuse) has been found in 20-25% of cases. Hypovolemia and shock are the usual underlying mechanism. Other contributory factors are hemo/ myoglobinuria, hemolysis, associated sepsis and disseminated intravascular coagulation (24). Glomerular lesions have also been described in snake bite cases. Merchant et al(25) have reported mesangial proliferation, splitting of basement membrane, swelling of endothelial cells and ballooning of glomerular capillaries, but the significance of these lesions in causing renal failure is not clear and is debatable. Seedat et al(26) reported two cases due to puff adder who developed oliguric renal failure and biopsy showed crescenticglomerulunephritis. Authors suspected hypersensitivity of venom as the cause. Occasional casesof severe glomerulonephritis related renal failure have been reported in the literature. Experimental studies carried out on the effect of Habu snake venom (found in Japan) has given some insight into understanding of the glomerular lesion. This venom contains hemorrhagin, like the venom of Echiscarinatus. Within 24 hours of injection of this venom destruction of mesangium occurs resulting in ballooning of capillaries which become packed with red cells and fibrin giving an appearance of blood cysts. This is followed by proliferation of mesangial cells giving appearance of segmental proliferative glomerulonephritis. Rarely crescents are observed. These studies provide evidence that these glomerular changes are due to vasculotoxic effects of hemorrhagin. However about tubular necrosis or cortical necrosis, the commonest lesion encountered in snake envenomation, there is no consensus that venom has any direct toxic effect in producing these lesions (27,28). (h) Neurotoxic effects: Elapidae venom and sea snake venom cause neurotoxic effects due to neuromuscular blockade. Commonly affected muscles in elapidae bite are those of eye, tongue, throat and chest (leading to respiratory paralysis in severe envenomation). Neurotoxins are small molecular weight positively charged molecules with less antigenecity. Neuro- muscular blockade is produced by one of the following mechanisms. (a) Post synaptic block (Cobra) cobratoxin and alpha-bungarotoxins act similar to d-tubocurarine on the post synaptic membrane. There is no decrease in acetyl choline. Response to neostigmine is satisfactory. (b) Pre-synaptic blockade (Krait)beta- bungarotoxin acts like botulism toxin pre synaptically to block the neuro-muscular junction. Post junctional membrane remains sensitive to acetyl choline. The time required for neuromuscular block varies with impulse traffic, therefore intense physical activity shortens the interval between envenomation and neuromuscular bl ock. Response to neostigmine is less satisfactory. It is important to note that these neurotoxins dont cross the blood brain barrier and therefore do not cause alteration in consciousness. Hence in case of altered sensorium an alternative cause should be found (23,29). (i) Cardiotoxic Effects: Cardiotoxin (Cobra) acts on cell membrane of skeletal, smooth and cardiac muscle to produce paralysis and cardiac asystole. Cobramine B and cytoxin cause irreversible depolarization of cell membrane and systolic cardiac arrest. Hyperkalemia following massive hemolysis or rhabdomyolysis also depresses cardiac function. (j) Myotoxic Effects: Although sea snake venom appears to be neurotoxic in animal experiments, the effects in man are primarily myotoxic. There is diffuse effect on all muscles though local effects at the site of bite are minimal. In humans bitten by sea snakes the findings are typical of generalized myopathic lesions in skeletal muscle. Damage to muscles- rhabdomyolysis and hyperkalemia resulting from it may be life threatening. Snake envenomation has so diverse effects that every system of the body is affected directly or indirectly (20,29). CONCLUSION Since ancient times snakes have been worshiped, feared or loathed in India. It is a common and frequently devastating environmental and occupational disease, especially in rural areas of our country. India has the highest number of death to snake bite in the world. One of the major gaps in the battle against snakebite in India is the lack of qualitative work. Most Herpetology text books give snake identification data that is overtly complex and of little use to doctors. Snakes are misidentified by doctors in most cases where snake is brought to the hospital. Without the snake, identification based on symptomatology is clearly fraught with problems. The doctors should be aware of discovery of a new poisonous snake, the Hump-nosed Pitviper (Hypnale Hypnale) which has no available antivenom at present. Community education, appropriate training of medical staff and better distribution of anti venom, especially in the states with the high prevalence, could reduce snakebite deaths in India .

GPS - Global Positioning System Essay -- physics global positioning sy

What is GPS? The Global Positioning System (GPS) was developed by the Department of Defense and consists of a group of 24 satellites which are monitored by five ground stations. It essentially allows you to pinpoint your location anywhere on the surface of the Earth, even in cloudy weather, with the use of a GPS receiver. The GPS receiver is a navigational device that uses these satellites as reference points to calculate your position on the ground. It does this by triangulating your position between at least 3 satellites. The GPS receiver uses the time it takes the coded radio signal to get from the satellite to the receiver to calculate the distance it is from that satellite. So, by accurately measuring the distance from the ground to these satellites, it can triangulate your position. GPS consists of 3 basic parts: 1. Control The control part is the central part of GPS. This is where the satellites are monitored and adjustments (atmospheric corrections, timing corrections, etc.) are made. There are 5 stations located worldide and each satellite passes over a monitoring station twice a day. 2. Space The space part is the NAVigation Satellite Timing And Ranging (NAVSTAR) group of satellites that bradcast the GPS signals. There are 24 satellites orbiting at about 20,200km above the Earth. They each make one revolution approximately every 12 hours. 3. User Consists of a user and a GPS receiver. The possible applications of GPS are limitless. Satellite Ranging GPS is based on satellite ranging. This technique of measurement is based on timing how long it takes a radio signal to travel from the satellite to the GPS receiver a... ...or short, consists of both satellites and ground based stations that supply correction information for your GPS receiver. This correction information can provide an improvement in positional accuracy of up to five times greater. It corrects for GPS signal errors caused by atmospheric disturbances, timing, and other errors. WAAS was developed by the FAA in order to help increase the accuracy of precision flight approaches. The corrected information is broadcast through two geostationary satellites that are located at a fixed location over the equator. Works Cited Trimble: http://www.trimble.com/gps/ The Aerospace Corporation: http://www.aero.org/publications/GPSPRIMER/index.html CMT: http://www.cmtinc.com/gpsbook/index.htm Garmin: http://www.garmin.com/aboutGPS/ GPS Mapping for GIS., 2001, Trimble Navigation Limited.

Gerne Will Ich Mich Bequemen

Johann Sebastian Bach composed this piece. This piece is part of the St Matthew Passion, BWV244. It is a musical composition from the Passions written by Bach in 1727. The St Matthew Passion is written for solo voices, double choir and double orchestra. Picander (Christian Friedrich Henrici) is the libretto of this composition. This is a scared music. Only 2 out of 4 or 5 setting of the Passions survived. Bach was a devouted Christian, so he composed it for Good Friday. Gerne will ich mich bequemen (Gladly will I am comfortable) is the title of this piece. The context of the song is based on biblical story and it is in German text. It is in Da capo aria form where A section is repeated. The instrumentation for this aria are 2 violin which intermingle between the melody and a basso continuo. Bach give more variation to the melody by switching its mode from major to minor mode. This alter its emotional significance completely and is used to provide vivid contrast. The idea of a change of mode in a melody implies some harmonic considerations. He exploited harmonic variation to marvelous effect in this piece. This shown in the starting of the piece in G minor in the ritornello section and then it modulates to D minor at bar 25, and it is back to G minor at bar 65. The first section of the piece starts with a Ritornello and then come the aria. After the aria, there is the ritornello section again which use the first half of the Ritornello, this can be found in bar 24. Bach often writes pieces for human voices that can fit in instrumental idioms for example the Ritornello section at the beginning of the piece and where the bassist starts to sing, the melody is similar. This is how Bach imply his knowledge into his work. Symbolism, symmetry and mathematical relationships can be found in this piece : whenever there is this word â€Å"Kreuz† which mean cross, Bach will always have a sharp in it. The sharp (#) represent + (cross). This is one of the way he uses symbolism. Word painting can be found in this piece in bar 61 â€Å"trink† (drink) the melody is going up with chromatic melodies, Bach wanted to portrait the action of drinking. The piece only have 2 dynamic throughout the piece which are : piano and forte There are lots of Diminished 7th chords in this piece which is not common in Baroque period, during these time, Church plays a very important role in music, they believe that dissonance is not a good sound to praise the god. Bach uses these chords and sudden modulations to accompany Jesus’s apocalyptic prophecy. The recitative often set the mood for a particular passages by highlighting emotionally changed words such as â€Å"Gerne† (gladly). There is a bit of development in the B section but we doesn’t conclude that section as a development section because only part of the melody and rhythm change, we still can see the same use of Fortspinnung in the B section. Fortspinnung (spinning forth), it was conceived in 1915, it is the development or â€Å"spinning out† of a short melodic motif to form a complete phrase, often using sequences or intervallic change. It is much used in the Baroque period rather less in the Classical period. In this piece, Bach tries touch upon many basic human problems such as love, hatred and betrayal. The story itself is given to the Evangelist. Sometime Bach put his signature in some of his composition. His signature can be found in bar 65.

Life of Maya Angelou Essay

Maya Angelou was born an African American. One would feel the agony she went through to be born as such and in America. Her grandmother was raped and bore a child; this child later came to be her mother. Similar to the ferocity her grandmother experienced, she was raped as a child by her mother’s boyfriend who was later on killed by her uncles. Because of this, she didn’t speak for almost six years afraid that her words had killed the man. This must be the dawn of her path to being a writer, realizing that words are powerful. If it could kill then it could give life as well. When her parents divorced, her grandmother took good care of her and her brother Bailey, Jr. and it was him who called her Maya. She became many things: a dancer, a cable car operator, a singer, a waitress, and where she flourished, a writer. The turn of her career came when she went to Egypt and Ghana. She went back to America to support Malcolm X’s Organization of African American Unity but he was assassinated. The struggle of the race continued as she supported Martin Luther King, Jr. who was also assassinated defending the African American cause, this made Maya Angelou devastated. She never stopped working for the emancipation of the African Americans and continued writing for equal rights and liberty. And so, in 1993, she read ‘On the Pulse of Morning,’ at President William Jefferson Clinton’s inauguration at the White House. Her words are valuable to the nation. Her words influence men of power. Her life is interesting which produced works that are priceless to the American people most especially to the African Americans of whom she dedicated her efforts to for their emancipation. Angelou’s style of writing categorized her works in the genre of autobiographical fiction because of her writing styles in dialogues, characterization, development of theme, setting, plot and language. But for her, these are simply autobiographies. She speaks through her writing what she has learned or learning out of life. In her interview with Mike Schneider in Bloomberg TV, she talked to all women as her daughters for her book, â€Å"Letter to My Daughter†. She speaks to them how a woman surpasses an incident in life as she would, given a similar situation. She writes to all the women as her daughters, sharing with them her story like she was one with them. In the poem, â€Å"I Know Why the Caged Birds Sing†, one would feel between the lines how an African American feels in the land called America. The words are simple and yet powerful in the sense that it deeply triggers emotions from the reader. These are deep sentiments of an enslaved race, wanting to be free but â€Å"the bird’s wings are clipped†. Feelings of being held while the other birds are free: is something that she has undergone while the whites enjoy the liberty of being part of their race. A critic named Lupton, considered Angelou’s writings as autobiographies for they contain the elements of such: written by a single author, chronological, and they contain character, technique and them. Although, there are parts that are fictional, the elements necessary for an autobiography are present. Angelou has the tendency to go to the direction against the convention of what an autobiography is. She used the first person singular, â€Å"I† in talking about â€Å"we†. She is placed among the African American autobiographists but other writers insist that she has created a different kind of interpretation of the autobiographical form. The book, â€Å"I Know Why the Caged Bird Sings†, became an acclaim containing the sentiments of the black people. She wrote it out of a challenge by Robert Loomis, her editor, for her to write â€Å"high art†. African American literature is more challenged in such that the authors have to agree about the status of their writings on whether it’s â€Å"high art†. O’Neale considers Angelou’s poetry a â€Å"more expected ghetto expressiveness† and she also avoids a monolithic Black language. The bird was used as metaphor that is struggling to set itself free from its cage. The cage that incarcerates the creature represents â€Å"oppression† of the African American people. It must be emphasized as well that Angelou doesn’t intend to isolate the white people. She wanted to promote the relevance of diligence so as to change the concept of laziness among African Americans. At the latter part of the 1960s, one of her goals was to create a book that satisfied the criteria, â€Å"organic unity†. According to English literature scholar Valerie Sayers, her poetry and prose are similar because of the episodes which are done like a series of short stories, but they do not follow a chronology of events. Her prose and poems are both in â€Å"direct voice†, which are characterized by steady rhythms with lyrical patterns that use figures of speech (similes and metaphors). Hagen has mentioned that Angelou’s works were influenced by the African American community’s literary and oral tradition. She uses the â€Å"blues† music and literary characters in testifying about her life and hardships, with the use of metaphors, rhythms, and intonations. Angelou’s one of the most important themes are â€Å"kinship†, this has something to do with her parents abandonment of her and her brother, her relationship with her son, husbands and lovers all throughout her books. She discusses the value of family relationships of how it can affect development of a person. She spoke of her paternal grandmother who prophesied of her being a teacher when she intentionally went mute. Telling her that she would be a teacher someday but how could that happen if she does not speak. In most of her books, â€Å"motherhood† is predominantly manifested based on her experiences as a single mother, a daughter, and a granddaughter. Like in the book, â€Å"Letter to My Daughter†, she dedicated this book to all women pondering on their life experiences. She delivered words of wisdom to soothe and give directions to their souls. When asked if she would say the same things to her son or sons, she said it would be different. She would never know how it is to be a man. If she would write something for her son/sons, it would be through the perspective of a woman. Her plot often surrounds in this motif – mother & child. â€Å"The woman who survives intact and happy must be at once tender and tough. † – Maya Angelou, Wouldn’t Take Nothing For My Journey Now (1994) She is an embodiment of strength and wisdom. This is where she gets her tenets from – the experiences she has gained from childhood up to the present which molded her to become a woman whom people listen to. For Scholar Mary Burgher, African American women autobiographers have rejected the stereotyping of roles as â€Å"breeder and matriarch† of their kind and they are being presented as â€Å"creative and personally fulfilling†. Maya Angelou also wanted to deliver the message that women are more than the purpose of bringing forth children. Women are valuable beings in society as much as men are. In her books, women are winners and are brilliant who have overcome hindrances of racial discrimination. She has been influenced greatly by her relationship with her grandmother who died early in her third autobiography, â€Å"Singin’ and Swingin’ and Getting’ Merry Like Christmas†. Momma (Angelou’s grandmother), is quoted in the whole book. â€Å"I write because I am a Black woman, listening attentively to her people†. Maya Angelou, 1984[87] She has greatly contributed to the emancipation of the black people in America working alongside with Malcom X and Martin Luther King, Jr. Went through devastation because of their deaths but continued on the struggle of her people. She continued to express the pains she goes through as a black woman through her music and poems. Using her gift in expressing through words her thoughts and struggles, unified the very same sentiments of all the black people in America. Her experiences especially from childhood gave her the foundation she needed to become who she is now. Everything that transpired in her life was a message she depicted in all her books. She resisted racial biases and protested outright to effect change in American society. She mentioned in her interviews when asked if she was angry, she said, â€Å"I am angry but I am not bitter†¦Ã¢â‚¬ , reiterating that anger was necessary to express indignation to the unjust treatment towards the black people. She emphasized, however, that she is not bitter. There is a difference between those two. She used anger to advance the cause of African Americans but made sure there is no bitterness in her heart. Works Cited Hagen, L. (1997). Heart of a Woman, Mind of a Writer, and Soul of a Poet: A Critical Analysis of the Writings of Maya Angelou. Lanham, Maryland: University Press. Lauret, M. (1994). Liberating Literature: Feminist fiction in America. New York: Routledge. O’Neale, S. (1984). Reconstruction of the Composite Self: New Images of Black Women in Maya Angelou’s Continuing Autobiography. Garden City, NY: Doubleday.

Develop Goals Essay

As the course of weeks of planning have interpose realizing a campus improvement plan is an essential item for any growth of a learning environment. Modifying our processes, teaching practices and student learning is vital to notice in order to make our action plan become successful. We must not forget the fact that our action plan is intertwined with the vision and mission set up by the administration team for the campus. Following this will be a chart as a draft of a school improvement plan based on the data acquired from Del Castillo Elementary. It includes a summary of the feedback and goals set by my principal mentor and several other stakeholders from the campus. Through positive collaboration, teamwork from all stakeholders and the correct support the plan can be implemented in a successful manner for continuous improvement. Strategies Set up lessons and assessments based on the TEKS tested for each grade level. Match readiness and supporting standards set up on the TEA blueprint to meet weekly assessments given in class. Provide training for teachers based on best practices and test taking strategies to be used by students. Goals: (See Figure 1.1) The results of the 2014 STAAR test demonstrates a need for improvement in 4th grade writing, 3rd grade reading and math, and 5th grade reading and math subjects. Resources: Journeys Reading Program (Houghton Mifflin Harcourt), Empowering Writers (J. Mariconda), Pearson Envision, Campus Reading Coach, Campus Dean of Instruction, STAAR Workbooks (varies by grade level) Target Barriers: In 2014 the 4th grade percentage for the writing STAAR test was at 47 percent meeting standard, this will need to increase to  70 percent. For 3rd grade reading it was at 37%, it will need to increase to 50%. 3rd grade math was at 41%, it will need to increase to 50%. For 5th grade reading it was at 36% it will need to be raised to 60%, and for math it was at 42% and it will need to be raised to 67%. Action: Data reports of TEKS mastered will be used by teacher to provide interventions for each of the above subject mentioned, to target each learner’s area of difficulties. Provide questionnaires to several stakeholders to improve the structure of testing. (See figures 2.1, 2.2, 2.3) Personnel Responsible: Classroom teachers, reading coach, dean of instruction. Evidence of Completion: District Benchmark (1 for the fall semester (November) see Figure 1.2, 1 spring semester (February).) Percentages, 2015 STAAR results taken in April 2015. Figure 1.1 2014 STAAR Results (Percentage of Students Meeting Standard) Figure 1.2 2014 District Benchmark (November) Figure 2.1 Student Questionnaire Purpose: To improve a testing experience for our students to increase the percentage of students meeting the standards of the standardized test. 1) What grade levels have you attended Del Castillo Elementary? 2) Do you enjoy having no physical education time or pullout time during testing days? 3) Would snacks during testing break help you focus on the test? 4) Do you enjoy incentives provided for passing your benchmarks? 5) How many brain breaks do you believe you should receive during a testing day? Figure 2.2 Parent Questionnaire Purpose: Parents are knowledgeable of testing procedures and improve motivation from parent to student at home. 1) Do you express confidence in your son/daughters campus to teach the skills necessary to meet the standard of the standardized test? 2) Do you prefer public schooling or private schooling? 3) Would you like extra services to teach your child not to have test anxiety? 4) Do you prefer for classroom teachers to teach to test or have enviroment rich activities? 5) Do you believe standardized testing creates a negative impact on your child? 6) If a teacher does not have a good percentage of students passing the STAAR test, would you judge that teacher as a â€Å"bad† teacher? 7) How many years have your children attended Del Castillo Elementary? 8) Are you satisfied with the kind of motivation the campus promotes to your child to motivate them to pass the STAAR test? 9) How many of your children attend Del Castillo Elementary? 10) Are the STAAR scores important for you? 11) What do you consider more important your child’s STAAR scores or report card grades? Figure 2.3 Teacher Questionnaire Purpose: Promote motivation within teachers to increase passing percentages. 1) What is your position at Del Castillo Elementary? 2) How many years have you been teaching in this campus? 3) Would you prefer to work a private school campus that does not require students to take a state mandated standardized test? 4) What do you think should be the student to teacher ratio for the testing grade levels? 5) What kind of motivation rewards should be offered to students that meet the standards on benchmarks and on the STAAR test? 6) Are the resources provided useful to your instruction to teach all TEKS tested in your grade level? 7) What supplemental aids should be provided on a yearly basis to increase the percentage of students passing the STAAR test? 8) Do you feel that you have to â€Å"teach to the test†? 9) Does the emphasis on improving state standardized test scores impact your classroom positively or negatively? 10) How much emphasis did your school place on students’ state standardized test results to evaluate your performance? 11) Has the use of state standardized test scores and outcomes  led you to consider leaving the profession? 12) During the last school year, how much pressure did you feel from school administrators to improve state standardized test scores?