Wednesday, November 27, 2019

Plastic Bags - Good or Evil free essay sample

You should be disgusted by your actions, by what you’re throwing, by what you’re using. Plastic bags are the reason why New Zealand will soon not be referred to as the clean, green and environmentally friendly country. Do you know how many plastic bags you consumed after 3 trips to the supermarket? I’ll tell you†¦On average you collect 60 bags. May I ask you, what are you going to do with all these bags? You’re probably thinking†¦ I’m just using plastic bags what’s the big deal, what’s the problem. Today I’ll educate you on why not to use plastic bags, why marine life is in danger and what you can do to help the environment. Firstly, what is the problem in using plastic bags? Plastic bags are made from petroleum, which is a non-renewable resource. This makes every plastic bag you throw away, a WASTE. We will write a custom essay sample on Plastic Bags Good or Evil? or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page The plastic bags aren’t the only thing you’re wasting, you’re wasting the resources it is made from. Can’t plastic bags be burned down? They can be burned down, emitting lots of toxic gases in the atmosphere leading to air pollution. Therefore burning plastic bags isn’t safe. Plastic bags are photodegradable. What is photodegradable? When something is photodegrading it means it is being broken down into smaller pieces with the help of sunlight. This process can take 500 years for only 1 plastic bag to be broken down. Did you know New Zealanders use around three million plastic bags a day and this leads to 1 billion bags each year! Hence I strongly suggest plastic bags aren’t the most environmentally friendly way of carrying objects. In other words plastic bags should be banned in New Zealand. Secondly, Marine life suffers because of what you do! You litter, waste and don’t take responsibility of your actions. When the process of photodegrading takes place the plastic is broken down. Subsequently the small pieces now pollute the soil, lakes and rivers. Marine life gets poisoned because they choke on the little bits of plastic as they are very gullible. They mistake the plastic as food and sprint to eat it that causes deaths. When a plastic bag is littered it ends up in water, when this happens marine life gets caught in the bag and ends up in suffocation and DEATH ! Now do you think the use of plastic bags should be banned? Thirdly, what can you do to help the environment and marine life? Whenever you go anywhere for shopping always carry eco-friendly bags. When you go to the supermarket and an employee asks you, â€Å"Hello sir, good morning madam, would you like me to put your shopping in plastic bags? † what can you say†¦. NO THANKS, we’ve got eco-friendly bags! The next thing that you can do is try not to break the handles of your previous plastic bags, instead use the same plastic bags over and over again. Lastly, whenever you throw away a plastic bag think of the marine life that die because of your actions, think about the environment that gets polluted because of your ignorance on the use of plastics. Don’t forget to use eco-friendly bags wherever you go and say NO to plastic bags. I hope I have convinced you in thinking the way I think in taking care about the environment and marine life. I hope you agree that we should ban the use of plastic bags in New Zealand!

Sunday, November 24, 2019

An Introduction to Anasazi Puebloan Societies

An Introduction to Anasazi Puebloan Societies Anasazi is the archaeological term used to describe prehistoric Puebloan peoples of the Four Corners region of the American Southwest. This term was used to distinguish their culture from other Southwestern groups like the Mogollon and Hohokam. A further distinction in Anasazi culture is made by archaeologists and historians between Western and Eastern Anasazi, using the Arizona/New Mexico border as a fairly arbitrary divide. The people who resided in Chaco Canyon are considered Eastern Anasazi. The term Anasazi is an English corruption of a Navajo word meaning Enemy Ancestors or Ancient Ones. Modern Puebloan people prefer to use the term Ancestral Puebloans. Current archaeological literature as well tends to use the phrase Ancestral Pueblo to describe the pre-contact people that lived in this region. Cultural Characteristics Ancestral Puebloan cultures reached their maximum presence between AD 900 and 1130. During this period, the landscape of the entire Southwest was dotted by large and small villages constructed in adobe and stone bricks, built along the canyon walls, the mesa top or hanging over the cliffs. Settlements: The most famous examples of Anasazi architecture are the famous Chaco Canyon and Mesa Verde National Parks. These areas contain settlements constructed on the mesa top, at the bottom of the canyon, or along the cliffs. Cliff dwellings are typical of Mesa Verde, whereas Great Houses are typical of Chacoan Anasazi. Pithouses, underground rooms, were also typical dwellings of Ancestral Puebloan people in their earlier times.Architecture: Buildings were usually multistory and clustered near the canyon or cliff walls and were reached through wooden ladders. Anasazi constructed typical round or squared structures, called kivas, which were ceremonial rooms.Landscape: Ancient Puebloan people shaped their landscape in many ways. Ceremonial roads connected Chacoan villages among them and with important landmarks; staircases, like the famous Jackson Staircase, link the bottom of the canyon with the mesa top; irrigation systems provided water for farming and, finally, rock art, such as petroglyphs and pictographs, dots the rocky walls of many sites surrounding, testifying to the ideology and religious beliefs of these peoples. Pottery: Ancestral Puebloans crafted elegant vessels, in different shapes, such as bowls, cylindric vessels, and jars with distinct decorations typical of each Anasazi group. Motifs included both geometric elements as well as animals and humans usually portrayed in dark colors over a cream background, like the famous black-on-white ceramics.Craftwork: Other craft productions in which Ancestral Puebloan excelled were basketry, and turquoise inlay works. Social Organization For most of the Archaic period, people living in the Southwest were foragers. By the beginning of the Common Era, cultivation was widespread and maize became one of the main staples. This period marks the emergence of the typical traits of Puebloan culture. Ancient Puebloan village life was focused on farming  and both productive and ceremonial activities centered around agricultural cycles. Storage of maize and other resources lead to surplus formation, which was re-invested in trading activities and feasting celebrations. Authority was probably held by religious and prominent figures of the community, who had access to food surpluses and imported items. Anasazi Chronology The Anasazi prehistory is divided by archaeologists into two main time frames: Basketmaker (AD 200-750) and Pueblo (AD 750-1600/historic times). These periods span from the beginning of settled life until the Spanish takeover. See the detailed Anasazi timelineSee details on the Rise and Fall of Chaco Canyon Anasazi Archaeological Sites and Issues Penasco BlancoChetro KetlPueblo BonitoChaco CanyonKivaChaco Road System Sources: Cordell, Linda 1997, Archaeology of the Southwest. Second Edition. Academic Press Kantner, John, 2004, Ancient Puebloan Southwest, Cambridge University Press, Cambridge, UK. Vivian, R. Gwinn Vivian and Bruce Hilpert 2002, The Chaco Handbook. An Encyclopedic Guide, The University of Utah Press, Salt Lake City Edited by  K. Kris Hirst

Thursday, November 21, 2019

No need for topic Case Study Example | Topics and Well Written Essays - 750 words - 1

No need for topic - Case Study Example Herr acted on instinct, even though he gambled he eventually bought the Boeings when the dollar was at its lowest. In that aspect, Herr should not be accused of mistimed purchasing and thus should be retained as the chairman of Lufthansa airlines by the board. 2. Even though he had expected the dollar to depreciate, he would not have left the whole amount unhedged, due to a variety of factors. First Herr was not sure that the dollar was going to depreciate; he was just going by his instincts. In that aspect living, the whole amount unhedged would have lead to the firm using more money in purchasing the Boeings. Hedging half the amount was a brilliant idea as it ensured that either way; the company would not use a lot of money in buying the Boeings. If Herr had left the whole amount unhedged and the dollar appreciated further, the organization would have used the colossal amount of money in buying the Boeings. However, hedging half ensured that the firm was cushioned whether the dollar appreciated or depreciated the firm would still benefit. Faced with such uncertainties Herr made a wise decision in hedging half the amount. Remaining uncovered as contemplated by the board would have had a positive impact, however, if the dollar would have appreciated and Herr’s anticipation proved wrong, then the firm would have lost a lot of money. Some of the risks associated with remaining uncovered include; higher spending. Full forward cover also has some advantages as well as disadvantages. The advantage of full forward cover is that the firm would have been protected adequately against currency exposure. However, taking such a risk in purchasing would have been a dangerous option, most companies prefer taking such a risk in other lines of business other than purchasing. 3. Herr had expected the dollar to depreciate, however, leaving the whole amount unhedged was risky, and however using forward contracts was not a good idea. Herr was

Wednesday, November 20, 2019

Are too many people being sent to prison Research Paper

Are too many people being sent to prison - Research Paper Example These are some of the questions that come to mind when one views the growing statistics of prisoners worldwide. This paper will focus on the fact that too many people are being sent to prison. There are too many people being imprisoned worldwide. The United States is leading in statistics for having many people in prison worldwide. The population in jail has risen by over ten times as compared to thirty years ago. Most prisons are overcrowded and the cost incurred by the state in its move to fighting crime is colossal and could be falling out of hand if nothing is done to address it. People are being sent to prison for minor crimes. Minor drug offenders for instance, make up a large number of inmates, are being jailed for long terms. Debaters have argued that these minor offenders should be subjected to other forms of disciplinary action like being made to do some community service in public. They claim that this would be a more positive way to punish them and subsequently the other offenders who have not been caught will learn from them (Doughty 1). Take a tour to any prison around and you won’t fail to notice the evident congestion. The prison facilities have been suffocated by the vast number of prisoners being injected to the system on a daily basis. Inmates in these prisons are facing unmentionable miseries since the facilities and resources in the prisons are not enough hence they have to live like slaves. Alabama’s prisons for instance, hold twice the number of prisoners that they were originally designed to hold. Their daily budget per prisoner is less than half the national average amount that should be spent on an individual prisoner. This strain is far from over since the number of people being sentenced is still increasing and new facilities have not been set up to accommodate them (Doughty 1). The increase in the number of people in the lower class is directly related to the increase in the number of people being sent to

Sunday, November 17, 2019

Correctional Policy Essay Example | Topics and Well Written Essays - 1750 words

Correctional Policy - Essay Example erica boasts the highest incarceration rates on the planet, even higher than places such as China, Iran or Russia, Canada also has significant challenges housing, feeding, and rehabilitating all of the prisoners in its prisons nationwide. According to a report released by the Pew Center for Research on the United States, nearly one in 100 persons in the United States is incarcerated (Pew Center, 2008). Canada has a much smaller population than the United States but the statistics are no less that a staggering. Statistics Canada has recent reported that for the first time in more than 10 years Canadas incarceration rate has increased and is now 110 prisoners per 100,000 of the Canadian population. This represents a 2% increase and for comparative purposes Canadas incarceration rate is higher than most western European countries including that of Sweden which is 82 per 100,000 and France which has an incarceration rate of 85 per 1000 population. The numbers are staggering and must be u nderstood if one hopes to tackle the issue of criminal justice reform and correctional policy reform in the 21st century (Tony, 2001; Statistics Canada, 2008). Seeking to address the fundamental issues associated with an overcrowded prison system and to propose a means through which correctional policy reform can be undertaken in the Canadian context, the following will argue that restorative justice will provide the answer to Canadas incarceration woes. This policy brief will be structured in the following manner in order to properly address the problems associated with over incarceration in Canada. Beginning with an analysis of the problem, an exploration of the weaknesses, deficits, and excesses of Canadas present correctional policy will be this elaborate upon. Following this a recommended policy to address the problems discussed above will explain the concept of restorative justice. Arguing that restorative justice can be one of the means through which solutions to Canadas

Friday, November 15, 2019

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 .

Tuesday, November 12, 2019

Internal combustion engine Essay

There is a big debate about the future of the auto industry. The new big topic is electric cars. Ads emphasize how much less pollution these cars put out, but the truth is that many people do not realize the downside of these cars. For instance, did you know that average battery cost for electric cars is between $18,000 and $20,000? Also, these cars produce significant more amounts of sulfur dioxide compared to traditional internal combustion engines, and what about the factories that burn billions of tons of coal everyday to produce electricity to charge these cars? Yes, these cars do produce little carbon dioxide directly, but the main source of pollution comes indirectly from the power plants that power these cars. Electric cars are not the best environmental solution in the long run because they still cause pollution while charging and producing them, there is no safe place to dispose of the batteries, and they are extremely expensive (Hogan). The first major issue with electric cars is that the process of manufacturing and charging these cars produces billions of tons of carbon dioxide emissions. The EPA’s research shows that for an average size car, electricity’s emissions are about three times higher than the emissions of gasoline (Inside Climate Staff). Electric cars do not produce much pollution directly. Instead the pollution is rather created at the source of the energy, power plants. Pollution is caused when manufacturing and producing these cars too. In addition, large amounts of pollution are produced while mining for the metals found in the new types of batteries. All of the mining machines and vehicles are powered from fossil fuels such as coal, gasoline, and diesel fuels. A great amount of energy is lost in the process of transmitting the electricity from the power source to your car. Also, electric cars emit significantly higher amounts of sulfur dioxide into the air compared to internal-combustion engines. Sulfur dioxide is the main component that causes acid rain. Acid rain can cause damage to lakes, streams, forests, car paints, copper, stone, and other building materials. Acid rain soaks into the soil and roots of plants, and causes slowed growth, and loss of leaves or needles. In the Great Smoky Mountains, acid rain has actually killed one-hundred or more of the Frazier Fir and Red Spruce trees (U. S. Environmental Protection Agency). Furthermore, in the Northeastern United States. , such as in the Kesterson Reservoir in the San Joaquin Valley, acid rain caused hundreds of fish populations to vanish from lakes (Davis). Acid rain can contaminate our own drinking water without us even knowing it; it tastes, and looks like regular water! When sulfur dioxide is inhaled, it can cause damage to your heart and lungs, causing disorders such as bronchitis and asthma (National Parks Service). Additionally, battery disposal is a key issue. The average life of this new type of batteries is twenty-five to thirty thousand miles before they will have to be replaced. If electric cars are going to be a thing of the future, there will become an excess of batteries in landfills and other disposal sites. Presently, landfills are not designed to handle the millions of batteries that would need to be disposed of if millions of people were driving electric cars. If these batteries are not properly disposed of, toxic chemicals could leak into the environment. Also, recycling these lithium-ion batteries doesn’t appear to be in the future anywhere soon. The cost of collecting, organizing, and shipping these metals to a recycler far outweighs the value of the scrapped material, so for the time being, most of these metals will be thrown away in landfills and junkyards (Mitchell). Another obstacle with these materials being tossed in landfills is the possibility of corrosive chemicals leaking into streams, rivers, and lakes. The process of refining metals for these batteries also releases pollutants into the environment. Once the refiner gets what metal they need from the ore, they discard the other materials into the nearby ecosystems. When this happens, our drinking water could be contaminated, and it could also damage, or kill the wildlife in that area (Bacher). Lastly, these cars are extremely expensive. Because the batteries only last for about a hundred miles, this means you would have to charge them about three times for every full tank of gas that you would normally buy. Also, with this low charge capacity, it would be virtually impossible to take long trips. You would have to stop frequently to charge the battery, which takes about nine hours to completely charge. This would turn a normal two-hundred mile, four hour drive into at least a thirteen hour trip, assuming that you could find an open charging station! Another reason that these cars are so expensive is that you have to replace the battery in your car about every twenty-five to thirty thousand miles. This is a very costly expense, especially since each new battery is about eighteen to twenty thousand dollars! This is $80,000 for batteries alone if you drive 100,000 miles in your car! The price of charging an electric car is less than what a full tank of gas would cost you, but you end up paying for it in the long run when you have to replace the battery. Electric cars are expensive from the start. The average retail price of most electric cars is in the thirty to forty thousand dollar range. Most middle class individuals cannot afford to pay this price for this new technology, which is why this will not be the best economical solution in the long run. These cost projections assume that both the car and the battery work correctly for the duration of their lives, but what if the battery breaks, or stops working, forcing you to replace it? The technology is new and underdeveloped, which means that there might still be some problems or â€Å"bugs† that the designers haven’t had a chance to fix. That’s $20,000 right there that you would have to pay in addition to the purchase price. That’s close to half of what you originally paid for the car! Since these cars are less, there are fewer mechanics that are qualified to work or operate on them, so the price of operation will be very high. Electric cars were released around 2010, which means there hasn’t even been enough time for a mechanic to get a four-year degree in operating on electric cars (Hogan). The problem with automobile pollution definitely needs to be addressed and solved, but fully-electric cars are not the best solution. They are made out to be better than they actually are, and they definitely have major disadvantages. First of all, they will have to become a lot cheaper for people to be able to afford them. The general public cannot afford to pay $20,000 for a new battery every 30,000 miles. Designers also need to find a way to lengthen the range of these cars. With only a 100 mile range, it is just not practical for most people. In addition, these cars still produce pollution, just not directly. All of the pollution is created indirectly, at coal-burning electricity power plants. Another unaddressed issue is that these cars emit large amounts of sulfur dioxide into the atmosphere, which is what combines with water to become acid rain. Lastly, there is no good place to dispose of batteries. If millions of people are going to be driving these cars, there will be tons of toxic batteries in landfills and disposal sites, which can cause harm to the wildlife, and the surrounding environment. If you accidentally miscalculate the charge left in your car, you will be stuck. Unlike a gas-powered vehicle, you cannot simply fill up your car with a gas can. With electric cars, there is no way to replenish the energy in your car on the side of the road. The fully-electric car was a good idea, but in the long run, it is not the best answer. The automobile companies need to continue to improve internal combustion engines to decrease their carbon dioxide emissions. Works Cited Cultrona, R. L. Pros and Cons of Electric Cars. 1999-2012. 18 March 2012. . Davis, Jay. Marine Bio. 1998-2012. 18 March 2012. . Hogan, Micheal C. The Encyclopedia of Earth. 21 February 2012. 18 March 2012. . Mitchell, Robert L. Computer World. 22 August 2006. 18 March 2012. . National Parks Service. 28 October 2010. 18 March 2012 . Staff, Solve Climate. Inside Climate News. 1 April 2010. 18 March 2012. . U. S. Environmental Protection Agency. 8 June 2007. 18 March 2012. .

Sunday, November 10, 2019

MRF Madras Rubber Factory Essay

Solutions and Services Implementation Highlights Time-frame: 9 months, strict adherence to time-schedules Top Management’s support Highly dedicated team Comprehensive change management SAP ERP success story MRF Limited MRF Limited is engaged in the manufacturing, distribution and sale of an extensive ange of superior quality tyres for various kinds of vehicles. The company’s operations relate to manufacture of rubber products, such as tyres, of applications. MRF has six production facilities in India and around 80 sales offices. From its humble origins in 1946, the company has come a long way to become the market leader in the tyre manufacturing industry. MRF exports its products to over 75 countries worldwide. Today, global tyre manufacturers have to plan and adapt to changes in customer demand, fluctuations in raw material prices and availability, while keeping pace with timelines for shipments; in the face of increasing ompetition in the global marketplace. The Need for SAP Before becoming an SAP customer, MRF was running several outmoded legacy systems that could no longer keep up with the company’s expanding operations, and, as a result, the company was plagued with inefficiency. Problems of slow availability of information, tedious manual entry and data transfer, lack of system flexibility, excess manpower utilization and costs started to have a negative impact on the business. Consequently, the company was spending a lot of time in consolidating the information, getting the data together, and on time. It did not take long for MRF to know that it had to replace its nonintegrated, independent systems if it wanted to gain strategic insight and higher productivity to manage rapid business growth. The company wanted a flexible solution to allow IT to keep pace with changes while offering a low total cost of ownership. MRF decided to reengineer its entire IT landscape by implementing SAP ERP and SAP CRM solutions, based on the SAP NetWeaver platform. A Core Team called the Power Users team was formed to determine the requirements of the company and the selection of a suitable ERP olution. MRF brought in IBM Global to facilitate the process and the Core Team was sensitized to the process of reengineering. The company did a detailed evaluation based on various criteria such as experience in the manufacturing sector and product-offerings; Oracle and SAP were short listed. MRF participated in a SAP summit which helped the company to take the final decision. â€Å"SAP came out on top in terms of product superiority, post-sales support, and record customer satisfaction. We were confident that SAP will support our plans for continued growth,† says Prince Azariah, Chief Information Officer, MRF Limited. SAP offered a clear solution for MRFs manufacturing operations which include process as well as discrete production. â€Å"We have moved onto a mature product with SAP. We have made a very good decision in selecting SAP,† adds Sathya Gautham, Manager IT Services. Implementation MRF chose Siemens Information Systems as the implementation partner after a thorough selection process. The project went live on December 1, 2007. There were around 60 members from MRF and 35-40 members from Siemens involved in the implementation process. The core team nd the partner’s team worked in full collaboration, while ensuring that the implementation was carried out according to time schedules. â€Å"One of the complications was that our systems were in silos. Change management has been a big challenge,† says Gautham. There were many instances when MRF looked to SAP India and SAP Labs for assistance and support during the implementation. SAP ERP has been implemented at the company’s Head Office in Chennai, 6 factories in Sales Offices. MRF went in for all core modules including Financials and Controlling (FICO), Sales ; Distribution (SD), Materials Management (MM), Production Planning PP), Quality Management (QM), Plant Maintenance (PM), Human Resources (HR), and SAP NetWeaver Business Intelligence (SAP NetWeaver 81). Today, there are around 700 users who have accepted the implementation in a positive manner. Benefits With SAP ERP, the company has one harmonized, standardized and integrated solution. The solution has enabled MRF to transform its business operation management from time consuming and inflexible to real-time and adaptable. The users can now count on easy access to accurate, complete, and up-to-the minute information, thanks to entralized, integrated data. This has led to quicker decision making and improved business transactions for MRF. SAP is the best thing that has happened to MRF,† Sathya Gautham, Manager IT Services The implementation of SAP has brought in a major shift in the work-culture in the company. â€Å"The core team was clearly aware that they are responsible for creating their future. Earlier, we were a top-driven company. Now, we have close to 60 personnel at the middle management level who have been empowered to take business decisions, and who are advising top management on what needs to be done o set up processes in the company. There is so much of enthusiasm among the core team members and the end-users. Also, we used to be a very silo-ed company. With SAP, the Heads of different Departments look to these people for resolution of problems.

Friday, November 8, 2019

Timeline of the Titanics First and Only Voyage

Timeline of the Titanic's First and Only Voyage From the time of its inception, the Titanic was meant to be gigantic, luxurious and safe. It was touted as being unsinkable because of its system of watertight compartments and doors, which of course proved to be just a myth. Follow the history of the Titanic, from its beginnings in a shipyard to its end at the bottom of the sea, in this timeline of the building of the ship through its maiden (and only) voyage. In the early morning hours of April 15, 1912, all but 705 of its 2,229 passengers and crew lost their lives in the icy Atlantic. The Building of the Titanic March 31, 1909: Construction of the Titanic begins with the building of the keel, the backbone of the ship, at Harland Wolffs shipyard in Belfast, Ireland. May 31, 1911: The unfinished Titanic is lathered up with soap and pushed into the water for fitting out. Fitting out is the installation of all the extras, some on the exterior, like the smokestacks and the propellers, and a lot on the inside, like the electrical systems, wall coverings, and furniture. June 14, 1911: The Olympic, sister ship to the Titanic, departs on its maiden voyage. April 2, 1912: The Titanic leaves the dock for sea trials, which include tests of speed, turns, and an emergency stop. At about 8 p.m., after the sea trials, the Titanic heads to Southampton, England. The Maiden Voyage Begins April 3 to 10, 1912: The Titanic is loaded with supplies and her crew is hired. April 10, 1912: From 9:30 a.m. until 11:30 a.m., passengers board the ship. Then at noon, the Titanic leaves the dock at Southhampton for its maiden voyage. First stop is in Cherbourg, France, where the Titanic arrives at 6:30 p.m. and leaves at 8:10 p.m, heading to Queenstown, Ireland (now known as Cobh). It is carrying 2,229 passengers and crew. April 11, 1912: At 1:30 p.m., the Titanic leaves Queenstown and begins its fated journey across the Atlantic for New York. April 12 and 13, 1912: The Titanic is at sea, continuing on her journey as passengers enjoy the pleasures of the luxurious ship. April 14, 1912 (9:20 p.m.): The Titanics captain, Edward Smith, retires to his room. April 14, 1912 (9:40 p.m.): The last of seven warnings about icebergs is received in the wireless room. This warning never makes it to the bridge. Last Hours of the Titanic April 14, 1912 (11:40 p.m.): Two hours after the last warning, ship lookout Frederick Fleet spotted an iceberg directly in the path of the Titanic. The first officer, Lt. William McMaster Murdoch, orders a hard starboard (left) turn, but the Titanics right side scrapes the iceberg. Only 37 seconds passed between the sighting of the iceberg and hitting it. April 14, 1912 (11:50 p.m.): Water had entered the front part of the ship and risen to a level of 14 feet. April 15, 1912 (12 a.m.): Captain Smith learns the ship can stay afloat for only two hours and gives orders to make first radio calls for help. April 15, 1912 (12:05 a.m.): Captain Smith orders the crew to prepare the lifeboats and get the passengers and crew up on deck. There is only room in the lifeboats for about half the passengers and crew onboard. Women and children were put into the lifeboats first. April 15, 1912 (12:45 a.m.): The first lifeboat is lowered into the freezing water. April 15, 1912 (2:05 a.m.) The last lifeboat is lowered into the Atlantic. More than 1,500 people are still on the Titanic, now sitting at a steep tilt. April 15, 1912 (2:18 a.m.): The last radio message is sent and the Titanic snaps in half. April 15, 1912 (2:20 a.m.): The Titanic sinks. Rescue of Survivors April 15, 1912 (4:10 a.m.): The Carpathia, which was about 58 miles southeast of the Titanic at the time it heard the distress call, picks up the first of the survivors. April 15, 1912 (8:50 a.m.): The Carpathia picks up survivors from the last lifeboat and heads for New York. April 17, 1912: The Mackay-Bennett is the first of several ships to travel to the area where the Titanic sank to search for bodies. April 18, 1912: The Carpathia arrives in New York with 705 survivors. Aftermath April 19 to May 25, 1912: The United States Senate holds hearings about the disaster; the Senate findings include questions about why there were not more lifeboats on the Titanic. May 2 to July 3, 1912: The British Board of Trade holds an inquiry into the Titanic disaster. It was discovered during this inquiry that the last ice message was the only one that warned of an iceberg directly in the path of the Titanic, and it was believed that if the captain had gotten the warning that he would have changed course in time for the disaster to be avoided. Sept. 1, 1985: Robert Ballards expedition team discovers the wreck of the Titanic.

Wednesday, November 6, 2019

The Green Mile (book) essays

The Green Mile (book) essays He wore chains on his arms and across his water barrel of a chest; He wore legirons on his ankles and shuffled a chain between them that sounded like cascading coins as it ran down the lime-coloured corridor between the cells You have just been introduced to the man who was convicted of raping and murdering two young girls, the man who was convicted to meet Old Sparkey on death row (The Green Mile), you have just met John Coffey. The Green Mile is Death row at Cold Mountain Penitentiary, it holds such condemned killers like Wild Billy Wharton and the possessed Cajun Eduard Delacroix with his pet mouse. The new inmate, John Coffey, seems to strike an emotional chord with the head prison guard, Paul Edgecombe, an understanding character but an unfortunate victim of a urinary infection. The minute Coffey is introduced to his cell he seems to break down and on being asked if he had any questions he replied Do you leave a light on after bedtime... Because I get a little scared in the dark sometimes, if its a strange place. This worried, discouraged voice is of a convicted killer but Paul Edgecombe seems to think otherwise. When reading this I seemed to feel sorry for John Coffey because he appears to be emotionally distraught and doesnt contain the mind and conscience of a killer. When Coffey is told to sleep he lay on his bed, feet hanging off the end, and silently started to weep. This part made the reader feel quite sorry for John Coffey as it becomes apparent that John could be innocent and he is going through hell in prison. It makes you wander that if John Coffey should be there. The story starts to turn when John Coffey asks Paul Edgecombe to approach his cell because Coffey claims to feel and know about Edgecombes pain. As Edgecombe draws nearer to the cell, Coffey sits up He patted the mattress beside him, his eyes never once leaving mine Paul Edgec...

Sunday, November 3, 2019

Qualitative method Essay Example | Topics and Well Written Essays - 3250 words

Qualitative method - Essay Example Broadly, there are two approaches in collection of information for research purposes in social sciences: qualitative research and quantitative research. Quantitative research originated in the natural sciences such as chemistry, physics, biology, geology and others, and focused on investigating things the researcher could observe and measure in some way. Evidently, applicability of this approach to social science research was rather limited: social world is impossible to objectively measure in the same way as natural world. Researchers working in the social sciences such as psychology, sociology, anthropology and others were interested in studying behaviour of human beings and various aspects of the social world inhabited by people. Attempts to explain human behaviour in simply measurable terms had only partial success: although measurements obtained with the help of quantitative research told researchers how often human beings demonstrate some or other type of behaviour or how often certain social phenomenon occur, no quantitative research could determine why people demonstrate such behaviour or why things in social world occurred in some specific way. Qualitative research is an effective alternative to find the answer to this question. Qualitative research is defined as "multimethod in focus, involving an interpretive, naturalistic approach to its subject matter" (Denzin and Lincoln, 1994: 2). Qualitative research is based upon a solid philosophical basis which includes a number of paradigms. Theorists outline four major philosophical paradigms that formed the basis of qualitative approach in social sciences: positivism, postpositivism, critical theory, and constructivism (Guba and Lincoln, 1994). Positivist philosophy founded by a famous French theorist A. Konte played exceptionally important role in development of qualitative research. Positivists argued that the objective reality did not depend upon the perspectives of taken by researchers. Consequently, there is no difference between reality and perception of reality, and the primary task of researchers is to disclose facts of the objective world. This paradigm is present in a diluted form in some qualitative research. Postpositivist philosophy is a contemporary modification of Konte's positivism. Adherents of this paradigm claim that human being is not capable of perfect and comprehensive understanding of reality admitting that serious analysis and accurate collection of information can bring the researcher close to such understanding. Postpositivism exerts substantial influence on qualitative research (Shaw, 1999: 45-47). Critical paradigm emerged in the second half of the last century in Germany. Proponents of this paradigm argued that reality could not be grasped without researcher's bias that is caused by historical, political, societal, ethnic, or gender conditions. Consequently, realisation of social conditions and values should be the primary purpose of research (Harvey, 1990). Critical ethnography, feminist research and participatory action research are the best known methods within qualitative approach which rely upon the critical paradigm. And finally representatives of constructivist paradigm claimed that reality was not possible to study and understand 'in pieces', but only holistically and in context. Therefore, the traditional relationship between researcher and subject of research was labelled

Friday, November 1, 2019

Customer Service Profile Essay Example | Topics and Well Written Essays - 1250 words

Customer Service Profile - Essay Example Customer service is the engine behind the moving of any successful firm. Good customer service involves selling the right product, which has good quantity and that which cannot harm the intended customer (Cavinato, 2001). This paper presents a detailed discussion of exceptional customer service offered by Sony Corporation. To do this, an evaluation of the company’s customer service success will be explored, and the customer service policies that  have had an impact on its performance determined. Sony Corporation, originally known as Tokyo Tsushin Kogyo (TTK), was established on 7th May 1946 in Tokyo Japan. Initially it was a radio repair shop before its development. The word Sony was derived from the Latin word ‘sonus’ which means sound as it dealt with the production of electronic materials that produced sound, and the slang word ‘sonny’ in American English. It widened its marketing from Japan and entered America, specifically the United States, be fore opening other branches in Spain, France and Germany. As per 2011 it had more than 168,000 employees and more than 100 branches spread worldwide making it one of the largest companies in the world (Kottler, 2001). Basically, sonny deals with electronic. Along the years since its establishment, sonny has produced some of the best and durable media formats like radios, televisions, laptops, memory sticks, and blue ray discs among many others. Sonny has its leading sales in the United States, Europe and Japan. It is a company that has a wide series of measures to enhance its operations with a mission of developing more innovative multimedia services for entertainment (Cavinato, 2001). Good customer relations and rapport can be established by providing customers with products at a set price, with the best services and convenience to their time schedule. A customer will always be happy to work with a seller who is flexible and reliable. This implies that if a customer misses to recei ve a product as per the stipulated time, he or she will be dissatisfied and will not come back to the seller in future. Maintenance of a good customer relationship is the key item in any firm. Some of the services that will keep a customer coming, and which enhance a positive attitude to an organization are; best price, offer in transportation costs, promotions in products, and at large levels offers in warehouse costs. Working along these customer service offers, a firm achieves best customer relations crucial for the success of it in the market place (Cavinato, 2001). Customer services may go to the extent of providing financial credits and offering repair to achieve a competitive advantage. Sonny has various customer policies that are specifically meant for the customer needs. In some of its customer service policies, customers have a right to be provided with services without any discrimination; customers are different and so each customer should be handled as per his or her wis h and character and customers should be given the best treatment. The organization ensures customers are offered the best services, offered with rewards to motivate them to keep coming back and that their feedback is received and responded to in time. Statistics indicate that Sony receives 85% positive feedback from customers daily, has all payment methods for customers, has contest and price offers for customers and has on time