Holdens Cry for Help in The Catcher in the Rye :: Essays Papers

Holden's Cry for Help in The Catcher in the Rye Catcher in the Rye is a complicated book about a young man going through, what appears to be a nervous break down. This is a book about the boy’s negative self-talk, horrible outlook on life, and a life itself that seems to keep swirling down the toilet. He keeps trying to fill his life with something, but the reality of it is he doesn’t exactly now what he needs. It’s complicated to understand at parts, because all he does is think of things in the worst possible conditions. Holden is the main character of the book. He is a complicated boy how seems to get thrown out of boarding schools left and right. He is constantly thinking about depressive thoughts of his past, like times he was with his brother, who is dead. His thoughts of his brother bring serious rage for some reason. In one instance he tells about the day after his brothers death, and Holden was filled with such anger and loneliness, he punched through all the glass doors in his garage. This required him to go to the hospital, and unfortunately his stay at the hospital forced him to miss his brothers funeral. He also keeps thinking about his old girl friend Jane. Holden is reminded of past times with her, where her father upset her, and Holden was the only one there to console her. So with that in mind, he thinks he still may have a place with her, and Holden believes that all his happiness will rest with her. Holden is just a guy who is searching for something to get him out of his depression , but he has no idea what it is, and above all how to get it. The one thing that stands in the way of what Holden needs is himself. He continues to cut himself off from everything he had once loved. His negative self will not let him get close to anyone else, while trying to get distant from those he once was close with. Holden never looks to the positive side of anything. He is just stuck in a deep hole and he can’t find a way out. Whenever Holden believes that he has found something that could help him, he himself some how shuts the door to his own happiness. Pond of which Holden keeps referring to is a very important.

Pestel on Winchester Theatre

PESTEL Political- The theatre is subsidized by the public purse in the form of local authorities and the arts council (Arts council, 2010). However, funding is under continual pressure after cuts made to the arts budget by the coalition government (Mintel, 2012). This has been evident since 2008 where the arts council of England stopped funding of the theatre meaning it is only supported by Winchester City Council, Hampshire city council, sponsors and friends of Theatre Royal Winchester (Burn, 2008), for example, sponsorship from the Hampshire Chronicle and wave FM (Theatre Royal Winchester, 2012).This could have an impact on the Theatre industry as it may mean they are forced to take a more commercial approach and lead to increased prices to ensure that they stay afloat. A recent 2012 survey on local authority arts spending by Arts Development UK has revealed there is a decline in partnership work between Arts Councils and local authorities. Also, 47 local authority arts services ha ve closed since 2003 and average expenditure on the arts is 16% down on 2010 and 38% down since  2008 and 15% of local authorities in England and Wales have lost their arts services since  2000.The outlook is also looking bleak as Chief Cultural and Leisure Officers Association reveals a planned 15% cut to arts services for  2012-13. The local Government Association is warning that unless central government policy changes, local funding for arts in England and Wales will have practically disappeared by  2020. The distribution of Arts Council funding across the English regions reveals a considerable imbalance: London gets over 50%, Midlands 12% and South East only 4% (2010-11 figures) (Gillet, 2013).Economical Due to the UK market slipping back into recession, this continues to restrain consumer spending and the performing arts as a whole are not immune from this common trend as the spending power of customers is hindered. It is also evident that household incomes have been r estricted by high inflation and static earnings further hindering spending power and consumer confidence (Mintel, 2012), meaning that consumers have less disposable income to spend on items such as the theatre.However, because of this trends in recent years have seen a fall in holiday trips taken abroad and therefore seen an increase in domestic holidays and theatre breaks are a popular form of weekend break and tourists spend is an important source of revenue for the theatre business (Mintel, 2012) as the west end enjoyed record box sales in 2011 for the 8th consecutive year (BBC, 2011). SocialThe theatre is seen to be most popular with those ranging from 35-55+ who account for 66% of theatre attendees showing that they are an ageing demographic with a strong female bias (Mirror, 2012) suggesting that the theatre is struggling to attract younger audience members as it may not be seen as attractive too them. Danny Boyle was quoted saying â€Å"†Theatre sustains local communit ies and does very positive things for local economies. But it also gives a sense of belonging† (Youngs, 2012) and are therefore hugely important part of the UK and British culture. TechnologicalNew technology is having a huge affect on the theatre industry. The ownership of mobile devices such as smartphones and Tablets are playing there role in this age of technology, as is the quality of TV’s, HD, 3D and the content that you can see within your own home that is most threatening to the theatre industry (Mintel, 2012). Technology is also being used in the form of multiple camera angles and high-definition technology, allowing Digital Theatre (2013) to bring the drama and emotion of each production to a global online audience to those who otherwise would not have seen the performance.Environmental- Environmental issues for the theatre can take several shapes and forms. For example they can include things such as energy bills and sets being scrapped at the end of performa nces especially for smaller theatres, as they cannot afford the storage. Bus miles generated by companies on tour and the audiences travelling into town are also factors that can be linked in with the theatre. There is also paper for the flyers, posters, programs and scripts that may be wasted and demands on power from theatre foyers, bars and offices, as well as the many exit signs that, by law, must be lit round he clock (Fisher, 2007) all add up and can prove costly for the theatre. There are several licenses that a business such as a theatre need to adhere to and these are monitored by bodies such as the Environmental Agency (2013) who aim to â€Å"protect and improve the environment, and to promote sustainable development. † Legal- Health and safety law applies to theatres as it does to other businesses. The Health and Safety at Work Act 1974 and related legislation places duties on employers, employees, the self-employed and those in control of premises.The responsibili ties include things such as working at height and manual handling as these are the two areas where most accidents/injuries occur (HSE, 2013) The Winchester theatre also holds 14 licenses ranging from food to alcohol licensing which must be handled with care responsibility. There are also important contracts between the theatre itself and the touring company’s/performers that must not be breached (Courtice, 2013). Reference List BBC, (2011) West end ticket sales hit ? 528 Million in 2011. Available at: http://www. bbc. co. uk/news/entertainment-arts-16795432 [Accessed 01/03/2013] Courtice, Mark (2013).Lecture at Oxford Brookes University. 19/03/2013 Digital Theatre, (2013). Available at: http://www. digitaltheatre. com [Accessed 01/03/2013] Fisher, M. (2007). The Guardian. Alas, Poor Planet. Available at: http://www. guardian. co. uk/environment/2007/feb/07/energy. theatre [Accessed 01/03/2013] Gillet, John. (2013). Local Authority Cutbacks: A report on Theatres 18/01/2013. Av ailable at: http://www. lost-arts. org/local-authority-cutbacks-theatres/ [Accessed 06/03/2013] Environmental Agency (2013). About us. Available at: http://www. environment-agency. gov. uk/aboutus/default. spx [Accessed 03/03/2013] HSE. (2013). Theatre. Available at: http://www. hse. gov. uk/entertainment/theatre-tv/theatre. htm [Accessed 03/03/2013] Mintel (2012) Performing arts UK, July 2012. Mirror, (2012) Theatre Goers Available at: http://audiences. visualdna. com/mirror/audience/entertainment/theatre_goers [Accessed 01/03/2012] Theatre Royal Winchester, (2012). Available at: http://www. theatre-royal-winchester. co. uk [Accessed 01/03/2013] Young’s, I. (15th Nov 2012) â€Å"Danny Boyle voices regional theatre fears†. Available at http://www. bbc. co. uk/news/entertainment-arts-20338771 [Accessed 03/03/2013]

Health Dissertation ideas †Applied Musculoskeletal Podiatry

Introduction Pathology that causes metatarsalgia Morton’s Neuroma can be described as a perineural fibrosis and nerve compression of the common digital nerve. This condition often occurs in the second and third intermetatarsal spaces, although it can be seen in other intermetatarsal spaces (Pace, Scammell and Dhar, 2010). According to Adams (2010) neuroma may be bilateral, are more prevalent in female adults starting their third decade of life. Whilst the actual cause of Morton’s neuroma is not clear, it is believed to be associated with hypermobility of the metatarsals, in addition to repetitive motions which ultimately grind nerves in metatarsals. There are suggestions from anecdotal studies that Morton’s neuroma is directly linked to crush injuries or repetitive running or jumping motions. The results of such repetitive actions may lead to damage or injury on the area of the forefoot. There is also the possibility of structural misalignment and mechanical abnormalities that may be experienced at the forefoot, which may consequently lead to creation of symptomatic Morton’s neuroma (Pace, Scammell and Dhar, 2010). Structural misalignment in this case may refer to lateral compression of foot, which can lead to invariable pain when inflamed bursa is squeezed between the metatarsal heads. Hauser (2011) observes that one of the most common structural concerns is the possibility that lax in intermetatarsal ligament may cause inter-digital nerve tissue to shift into a wrong place, particularly in between the areas of metatarsal heads and be subject to comprehensive trauma. The common subjective history based on patients’ reports is usually characterised by numbness and tingling, and radiating and burning pain. Patients’ reports also suggest that the pain is localised at the plantar aspect of the specific intermetatarsal space, although it can also extend itself and radiate into other adjacent toes of the infected person (Berry, Gonzalez, Bowman, 2012). Patients often describe their feeling of â€Å"lump† on the foot’s bottom. Significantly, these symptoms may rise when the infected carries out a weight-bearing activity. Reports indicate that closed-toed shoes, particularly the tight-fitting ones can lead to increase in symptoms, and patients report relief after they remove or change their shoes (Summers, 2010). Relief may also be experienced when the patient massages their foot or moves the toes around. Aetiology of this condition and how it would be recognised clinically Research has established that Morton’s neuroma is unique in terms of clinical diagnostic requirements or needs (Drury, 2011). This is because although patients frequently report symptoms such as numbness, there is evidence that sensory deficit may or may not be found when the patient goes through examination. Drury (2011) observes that there may be a demonstration of splaying or divergence of the digits when clinical presentation is carried out, and that more often than not little or no edema or inflammation can be observed clinically. Typically, reproducing pain with palpation to the intermetatarsal space is a normal activity, but care must be taken to put the pressure in the space, and avoid the metatarsal heads. There have been various clinical strategies to assist clinicians effectively diagnose Morton’s neuroma. Schreiber et al (2011); Faraj and Hosur (2010) report that patients may demonstrate a Mulder’s sign, which is provoked by squeezing the forefoot and conducting application of plantar and dorsal pressure. In other words, clinical test for Morton’s neuroma has all along been to compress the foot by applying pressure to the medical and lateral aspects of the foot at the metatarsophangeal joints, which in turn puts pressure on nerves (Pastides, El-Sallakh and Charalambides, 2010: 503). A positive clinical test outcome involves a pop or click that can be felt and heard at the same time. This pop or click is usually painful to the patient. There is a possibility of replicating symptoms of Morton’s neuroma in a process involving Gauthier’ test, where the forefoot is squeezed and medial to lateral pressure is applied (Beltran et al., 2010). Mayo Clinic (2010) has subsequently described a test consisting of hyperextending the toes and rolling the thumb of the examiner in the area of symptoms, a process that may identify a tender, thickened, and longitudinal mass of flesh. Clinical findings also indicate that Morton’s neuroma may also show Tinel’s sign as well as Valleix phenomenon (Berry, Gonzalez and Bowman, 2012). The other pathway for detecting Morton’s neuroma is diagnostic testing. This process involves plain radiography, ultrasound, and magnetic resonance imaging (Summers, 2010). Radiographs are routinely ordered to rule out musculoskeletal pathology, even though rise in proximity of the adjacent metatarsal heads is believed to result in increased pressure of the intermetatarsal nerve. Furthermore, Hause (2010) found no significant correlation between radiographic findings and the clinical presence of neuromas. In addition, there is the recommendation to use ultrasound in the diagnostic evaluation of the interspaces (Hause, 2010). Drury (2011: 19) observes that there is a likelihood of a neuroma appearing as an ovoid mass with hypoechoic signal-mass to the long axis of the metatarsals. . Adams (2010), however, advises that although MRI is a useful diagnostic tool, it should always be reserved for atypical presentations or to eliminate multiple neuromas. Significantly, neuroma can be best identified on T1 weighted images, and it’s likely to come out as a well-demarcated mass with minimal signal intensity. In summary, clinical diagnostic approach to identify Morton’s neuroma can be achieved by ensuring that examination and diagnostic testing has ruled out any other etiologies of symptoms. Conservative treatment intervention for Morton’s neuroma No best treatment interventions have been identified in the literature for treatment of Morton’s neuroma. Conservative intervention for Morton’s neuroma is considered to be one of the best treatments alternatives for the condition. However, some of the common conservative treatment options involve changing shoe type, use of metatarsal pads, and use of non-steroidal anti-inflammatory drugs, administering sclerosing alcohol injections, and surgically transposing the offending nerve (Summers, 2010). Many doctors and physical therapists have recommended that patients are put to rest for a specific period of time, and reduce activities that may elicit pain (Pastides, El-Sallakh and Charalambides, 2012). Injections as an intervention Various clinical studies have exposed the need to consider injection as a better treatment option for Morton’s neuroma over other non-surgical treatment options available. In a study conducted by Drury (2010) different conservative treatment measures often produce similar results. In a small randomised prospective study of 23 patients, the researchers compared reduction in neuroma pain when supinatory or pronatory insoles are used. In the study, there was no explicit inclusion or exclusion criteria other than clinical diagnosis, and no participant or evaluator was considered blind to the intervention allocations. The study had 13 percent of the participants (two patients) drop out after one month into the experiment. After 12 months, pain in the supination and pronation insole groups reduced by 50 percent and 45 percent, respectively- a reduction considered insignificant. In another study, a physically active 25-year-old female with diagnosed symptomatic Morton’s neuroma was put through a massage therapy sessions. The six-session massage therapy involved a 60-75 minute weekly massage exercise involving postural alignment in addition to localised foot and leg treatment. The patient was also put to complete at-home daily exercise, with a weekly monitoring of change by the therapist who reassessed the patient’s posture and ensuring the client fills out a pain survey based on a Visual Analog Scale. The results indicated progressive change on the side of the client in terms of pain character. Specific patient report indicates that the pain character changed from burning and stabbing to dull and pulsing sensation after three sessions. There was also a reduction in pain during exercise. Although this study suggests that massage therapy is a significant treatment for Morton’s neuroma, its weakness is based on the fact that the treatment only involved one client. No study has indicated the effectiveness of the method on a larger randomised control studies. In a prospective randomised study involving 82 patients, the researchers compared steroid injections alone based on shoe modifications (Berry, Gonzalez and Bowman 2012). Some of the recorded primary outcomes were patient satisfaction, which is basically the presence or absence of pain, the pain intensity, and return of pain afterwards. The results of the study indicated that steroid injections yielded better outcome in terms of patient satisfaction, compared with other conservative options such as shoe modifications alone. In this study, 23 percent of shoe-modification patients achieved complete satisfaction after one month of intervention. This was significantly lower than the 50 percent of patients who experienced significant pain reduction after one month of steroid injection. After six months, 28.6 percent of the participants experienced satisfaction with shoe modification, significantly lower than 73.5 percent satisfaction amongst those who had received injection. Although the difference was significant lower after one year with 63 percent satisfaction with shoe modification and 82 percent with injection, the reduction could have occurred because patients were allowed to cross over after six months. The researchers observed that no complications were reported, although the study was limited by a high cross-over rate from shoe modification group to injection group after 6moths. Some studies have investigated other techniques such as the use of sclerosing effects of alcohol (Pastides, El-Sallakh and Charalambides, 2012; Schreiber, 2011; Beltran, 2010; Pace, Scammell and Dhar, 2010), where delivery is done by multiple injections guided by ultrasound techniques over time. Improvements were reported in term of clients’ satisfaction with no long-term adverse effects in various case series. It is mostly recommended that even as an injection is used as the chosen treatment option, other supplementary management options such as shoe adjustments and calf-stretching exercises should also be implemented concurrently. However, in case the conservative interventions fail to work, many patients may be advised to undergo surgery to remove the neuroma or just to release pressure from ligaments. Studies have, however, indicated that 15 to 20 percent of these surgeries will not relieve the patient from pain, and may also lead to various complications such as local post-surgery infections, scar tissue, and damage of soft tissues which may affect normal foot functions. It has also been established that there is a possibility of neuroma recurring after the surgery. Conclusion Whilst the exact cause of Morton’s neuroma is not known, the common belief is that it is caused by hypermobility of the metatarsals. This may also be aggravated by repetitive motions involving grinding of nerve bundle. The common symptoms are patients describing their feeling of â€Å"lump† on the foot’s bottom. These symptoms may increase when the patient engages in weight-bearing activity. Research has established that symptoms that may be associated with Morton’s neuroma may not necessarily mean a person is suffering from the complication. This is why clinical diagnosis is often recommended. One of the most common clinical strategies that may be beneficial to clinicians diagnosing Morton’s neuroma is patients demonstrating Mulder’s sign. A positive clinical test outcome involves a pop or click that can be felt and heard at the same time. Clinical findings also indicate that Morton’s neuroma may also show Tinel’s sign as well as Valleix phenomenon (Berry, Gonzalez and Bowman, 2012). Although there are various conservative therapies used to manage Morton’s neuroma complications including rest, weight loss, and exercise for muscle strengthening, orthotics, massage therapy, physiotherapy, and manipulation, these methods are found to be very effective. It’s against this backdrop that injection is found to be a more effective way of managing the complication as reported by clients’ satisfaction studies. Injection may involve steroid injection, local anaesthetic injections or sclerosant injections. Injections have been found to yield better outcome in terms of patient satisfaction, compared with other conservative options such as shoe modifications alone. It has also been established that there are no complications reported in injections. Medical practitioners, however, recommend that patients may be advised to undergo surgical intervention in case conservative interventions fail to yield desired results. References Adams WR. (2010). Morton’s neuroma. Clin Podiatr Med Surg., (2)7: 535-545. Beltran LS, Bencardino J, Ghazikhanian V, Beltran J. (2010). Entrapment neuropathies III; lower limb. Semin Musculoskelet Radiol, 14: 501-111. Berry K, Gonzalez P, and Bowman RG. (2012). Physical Medicine and Treatment for Morton Neuroma. Available from: http://emedicine.medscape.com/article/308284-overview [Accessed November 17, 2014.]. Bronfort G, Haas M, Evans R, et al. (2010). Effectiveness of manual therapies: the UK evidence report, Chiropractic & Osteopathy, 18(3):1–33 Drury AL. (2011). Use of homeopathic injection therapy in treatment of Morton’s neuroma. Altern Ther Health Med, 2(1) 17-48. Faraj A, and Hosur A. (2010). The outcomes after using two different approaches for excision of Morton’s neuroma. Chinese Medical Journal, 12 (3): 2195- 2198. Hauser R. (2011). A retrospective observational study on Hackett-Hemwall dextrose prolotherapy for unresolved foot and toe pain at an outpatient charity clinical in rural Illinois. J of Prolotherapy 2 (3): 543-551. Mayo Clinic. (2010). Morton’s Neuroma. [Accessed September 16, 2010]. Available from: http://www.mayoclinic.com/health/mortons-neuroma/DS00468. Published & Updated October 5, 2010. Pastides P, El-Sallakh S, Charalambides C. (2012) Morton’s neuroma: A clinical versus radiological diagnosis. Foot Ankle Surg, 18: 22-4. Pace A, Scammell B, Dhar S. (2010). The outcome of Morton’s neurectomy in the treatment of metatarsalgia. Int Orthop, 3 (4):511-5. Schreiber K, Khodaee M, Poddar S, Tweed EM. (2011). Clinical Inquiry. What is the best way to treat Morton’s neuromaInt Orthop, 60: 157-158. Summers A. (2010). Diagnosis and treatment of Morton’s neuroma. Emerg Nurse, 1(8): 16-17.

Black Mamba essays

Black Mamba essays When choosing an exotic animal, my first thought was to choose something dangerous. After thinking, I remembered dendroaspis polyepsis. The black mamba is not only a beautiful creature, it is dangerous, exciting, and utterly fascinating. The black mamba, as a predator, is the unchallenged leader. The black mambas prey is almost solely warm-blooded animals, such as birds and small mammals, including dassies or rock hyraxes and rodents (Robert Burton). Mambas main enemies are mongooses, but only when they are young. Eagles and secretary birds may eat them and young ones may be eaten by snake-eating snakes (Robert Burton). A full-grown black mamba has little to fear except those age-old destroyers of serpents-people (Douglas Lee). I was not able to find information about a symbiotic relationship, nor was I able to find any information about competition. I think this is because the black mamba is the most feared predator in its habitat. The black mamba ranges from the east of Zaire and southern Ethiopia southwards to Natal and South West Africa (Robert Burton). My research has revealed that the black mamba is a very adaptable denizen, living anywhere from tree branches to holes in the ground. The favored place of residence is in areas of sparse brush, where it inhabits a variety of different shelters, including rocky areas, abandoned termite mounds, and animal holes (Chad H. Mummert). The black mamba will not build its own shelter, but will live in the same place for years if not disturbed. Black mambas will climb into low trees but are more given to climbing rocks, where they lie sunning themselves Robert Burton). The black mamba tends to live alone, only seeking other snakes when it is time to breed. The role the black mamba plays in its environment is mainly as a rodent control. Mating occurs in spring after the male finds a female from her scent trail. Copulation can be drawn out to hours or ...

Global Warming Is Inevitable No Matter What We Do Essays

Global Warming Is Inevitable No Matter What We Do Essays Global Warming Is Inevitable No Matter What We Do Paper Global Warming Is Inevitable No Matter What We Do Paper Essay Topic: Global Warming Global warming has perhaps become the most complicate issue facing by the worlds leaders as well as the public. To some extent agree that global warming is inevitable no matter what we do. It is not a result of one or two days activity but is the consequence Of addition Of the greenhouse gases, since the time of industrialization. Scientific evidence indicates that since 1950, the worlds climate has been warming and now, it has reached such a point where it may not be possible to instantly control the rate at which the temperature is rising. Indeed, the researchers say that globally averaged air temperatures would still rise one degree Fahrenheit by the year 2100, even if no more greenhouse gases were added to the atmosphere. However, scientists are working to bring our solutions for this ever increasing problem and it is also predicted that if we significantly reduce the pollution by reducing the emission of greenhouse gases or filtering the emission before releasing it in the atmosphere, controlling the use of bio-products and fuels, it is possible to reduce the rate at which it is proceeding. Groups of industrial powers, at he Earth Summit, have regarded to a goal of reducing the emission fifty percent by 2050. In many places, vehicles running by fuel have been replaced by the electric ones,and the use of solar panel has increased significantly. The Cuffs used in refrigerators and air-conditioners have been replaced by environment friendly products. People worldwide have become concerns and many awareness programs regarding global warming are being conducted regarding global warming-Even if it will take hundreds of years to bring about the change,people are committed towards it and hope that some day it will be n control. :

Greenland Shark Facts (Somniosus microcephalus)

Greenland Shark Facts (Somniosus microcephalus) The cold waters of the North Atlantic and Arctic Ocean are home to the worlds longest-lived vertebrate: the Greenland shark (Somniosus microcephalus). The large shark goes by several other names, including gurry shark, grey shark, and eqalussuaq, its Kalaallisut name. The Greenland shark is best known for its impressive 300 to 500 year life span, as well as its use for its use in the Icelandic national dish: kà ¦stur hkarl. Fast Facts: Greenland Shark Scientific Name: Somniosus microcephalusOther Names: Gurry shark, grey shark, eqalussuaqDistinguishing Features: Large gray or brown shark with small eyes, rounded snout, and small dorsal and pectoral finsAverage Size: 6.4 m (21 ft)Diet: CarnivorousLifespan: 300 to 500 yearsHabitat: North Atlantic and Arctic OceanConservation Status: Near ThreatenedKingdom: AnimaliaPhylum: ChordataClass: ChondrichthyesOrder: SqualiformesFamily: SomniosidaeFun Fact: Chef Anthony Bourdain said kà ¦stur hkarl was the single worst, most disgusting and terrible tasting thing he ever ate. Description Greenland sharks are large fish, comparable in size to great whites and in appearance to sleeper sharks. On average, adult Greenland sharks are 6.4 m (21 ft) long and weigh 1000 kg (2200 lb), but some specimens reach 7.3 m (24 ft) and 1400 kg (3100 lb). The fish are gray to brown in color, sometimes with dark streaks or white spots. Males are smaller than females. The shark has a thick body, with a short, round snout, small gill openings and fins, and small eyes. Its upper teeth are thin and pointed, while its lower teeth are broad with cusps. The shark rolls its jaw to cut away pieces of its prey. Greenland shark (Somniosus microcephalus). NOAA Okeanos Explorer Program Distribution and Habitat The Greenland shark is usually found in the North Atlantic Ocean and Arctic Ocean between sea level and a depth of 1200 m (3900 ft). However, the fish migrate to deeper water further south during the summer. One specimen was observed off the coast of Cape Hatteras, North Carolina at 2200 m (7200 ft), while another was documented at 1749 m (5738 ft) in the Gulf of Mexico. Greenland shark distribution. Chris_huh Diet The Greenland shark is an apex predator that feeds mainly on fish. However, it has never actually been observed hunting. Reports of scavenging are common. The shark supplements its diet with reindeer, moose, horse, polar bears, and seals. Adaptations While the shark feeds on seals, researchers are unclear how it hunts them. Because it lives in frigid water, a Greenland shark has an extremely low metabolic rate. In fact, its metabolic rate is so low that the species has the lowest swimming speed for its size of any fish, so it cannot swim fast enough to catch seals. Scientists hypothesize sharks may catch seals while they are sleeping. The low metabolic rate also leads to the animals slow growth rate and incredible longevity. Because sharks have cartilaginous skeletons rather than bones, dating their age requires a special technique. In a 2016 study, scientists performed radiocarbon dating on the crystals in the lenses of eyes of sharks caught as bycatch. The oldest animal in that study was estimated to be 392 years of age, plus or minus 120 years. From this data, it appears Greenland sharks live at least 300 to 500 years, making them the worlds longest-lived vertebrate. The biochemistry of the Greenland shark is adapted to allow the fish to survive extremely cold temperatures and high pressures. The sharks blood contains three types of hemoglobin, allowing the fish to obtain oxygen over a range of pressures. The shark is said to smell like urine, due to the high levels of urea and trimethylamine N-oxide (TMAO) in their tissue. These nitrogenous compounds are waste products, but the shark uses them to increase buoyancy and maintain homeostasis. Most Greenland sharks are blind, but not because their eyes are small. Rather, the eyes are colonized by copepods, occluding the fishs vision. Its possible the shark and copepods may have a mutualistic relationship, with the crustaceans displaying bioluminescence that attracts prey for the shark to eat. Reproduction Very little is known about Greenland shark reproduction. The female is ovoviviparous, giving birth to about 10 pups per litter. The newborn pups measure 38 to 42 cm (15 to 17 in) in length. Based on the animals slow growth rate, scientists estimate it takes about 150 years for a shark to reach sexual maturity. Greenland Sharks and Humans The high concentration of TMAO in Greenland shark flesh makes its meat toxic. The TMAO is metabolized into trimethylamine, causing potentially dangerous intoxication. However, the sharks meat is considered a delicacy in Iceland. The meat is detoxified by drying, repeated boiling, or fermenting. Hkarl hanging to dry in Iceland. Chris 73 Although a Greenland shark could easily kill and eat a human, there are no verified cases of predation. Presumably, this is because the shark lives in extremely cold water, so the chance of interaction with humans is very low. Conservation Status The Greenland shark is listed as near threatened on the IUCN Red List. Its population trend and the number of surviving adults is unknown. Presently, the species is caught as bycatch and intentionally for Arctic specialty food. In the past, Greenland sharks were heavily fished for their liver oil and were killed because fisheries thought they posed a threat to other fish. Because the animals grow and reproduce so slowly, they have not had time to recover. The shark is also threatened by overfishing and climate change. Sources Anthoni, Uffe; Christophersen, Carsten; Gram, Lone; Nielsen, Niels H.; Nielsen, Per (1991). Poisonings from flesh of the Greenland shark Somniosus microcephalus may be due to trimethylamine. Toxicon. 29 (10): 1205–12. doi:10.1016/0041-0101(91)90193-UDurst, Sidra (2012). Hkarl. In Deutsch, Jonathan; Murakhver, Natalya. They Eat That? A Cultural Encyclopedia of Weird and Exotic Food from around the World. pp. 91–2. ISBN 978-0-313-38059-4.Kyne, P.M.; Sherrill-Mix, S.A. Burgess, G.H. (2006). Somniosus microcephalus. The IUCN Red List of Threatened Species. IUCN. 2006: e.T60213A12321694. doi:10.2305/IUCN.UK.2006.RLTS.T60213A12321694.enMacNeil, M. A.; McMeans, B. C.; Hussey, N. E.; Vecsei, P.; Svavarsson, J.; Kovacs, K. M.; Lydersen, C.; Treble, M. A.; et al. (2012). Biology of the Greenland shark Somniosus microcephalus. Journal of Fish Biology. 80 (5): 991–1018. doi:10.1111/j.1095-8649.2012.03257.xWatanabe, Yuuki Y.; Lydersen, Christian; Fisk, Aaron T.; Kovacs, Kit M. (2012). The slowest fish: Swim speed and tail-beat frequency of Greenland sharks. Journal of Experimental Marine Biology and Ecology. 426–427: 5–11. doi:10.1016/j.jembe.2012.04.021

E-business Essay Example | Topics and Well Written Essays - 500 words - 1

E-business - Essay Example As a hedge against all liabilities for the company, the manger should develop a plan of insurance that covers the company’s legal costs, as estimated in advance, for middle and extreme examples of corporate liability. This type of insurance coverage will be analyzed by the manner to see to what extent the company remains open to civil and criminal suits for negligent business practices that may occur in the ecommerce operation. In establishing insurance coverage for the company in the case of corporate liability for services offered online, we must purchase the required policy for insurance in all instances of operating liability on the internet. Website security is most important in an ecommerce website, as the customer finds a sense of trust and operability in the existence of a website with secure credit card processing facilities and shopping cart. Secure servers use a type of connection that is different from typical web pages in HTML. The secure pages require a SSL connection which stands for â€Å"Secure Socket Level† encryption technology. The manager will purchase required SSL certificates as needed to operate the ecommerce site with security. For business conducted in England and the United Kingdom, the manager should develop a plan to meet all requirements of the Data Protection Act of 1998. This will require the ecommerce site to have a Privacy Statement and â€Å"Terms and Conditions† page to make clear all company policies relating to the collection of data. (The National Archives, 1998) The manager will be responsible for all third party contract negotiations conducted with foreign and national companies within the relationship of the ecommerce website facilities, logistics, warehousing, and distribution. The responsibility of the manager must override all concerns of the departments to present a clear plan of security that matches with the legal team’s views. Any requirements from upper management and staff