Art and Identity

Aussie stereotypes Essays

Aussie stereotypes Essays Aussie stereotypes Essay Aussie stereotypes Essay Around the universe. people are raised non to pigeonhole others. However. they frequently define their ain cultural individuality by pigeonholing themselves. Not merely do the stereotypes provide the theoretical account that persons seek to fit. they besides provide a sense of commonalty that makes people feel that they are portion of a community. For illustration. the Chinese have been described as: Peaceful. hardworking and easy content. They respect seniors. love kids and are patient with their chaps. Chinese in general are modesty and low. They believe in harmoniousness and neer expression for confrontation. It is non merely the Chinese that like to self-stereotype. The Italians self-stereotype themselves as holding great manner. the Gallic as holding elegance. the Japanese as being difficult workers. and the Spanish as being lovers of life. The stereotypes are picked up by foreigners and in bend multiplied. peculiarly in travel ushers where travelers are eager to cognize something about the sort of civilization they are about to see. In Australia. there are some persons who can appreciate the benefits of a cultural individuality and who have created stereotypes to have that individuality. One such Australian is Peter Cosgrove. ex-Chief of the Army. Harmonizing to Cosgrove. Without uncertainty the best quality we observe across the full Australian community is a natural willingness to flip in and hold a spell. to assist others. We see it of class whenever there is an exigency or a worthy cause. We see it in every community volunteer administration from the lifeguards to the bushfire brigades through to the 1000s of young person and mature age featuring nines and those great international service administrations like Rotary and many others. We see it in our professional organic structures such as the constabulary. fire and ambulance services and of class in the defense mechanism force. It is a generousness of spirit and a altruism that is possibly our most cherished heritage to manus on to younger and newer Australians – a state of people who care for and look out for each other. It is impossible to corroborate the truth of Cosgrove’s stereotype. Surely non all Australians volunteer to contend fires. guard beaches. fall in the ground forces. work in a Redemption Army shop. or pick up trash. However. even though a stereotype may non be true in pattern. it may be true in myth and for this ground belief in the stereotype is a fact in itself. Besides. when evoked in certain fortunes. the stereotype can go a self-fulfilling prognostication. Persons who believe it may conform to the positive societal individuality that the stereotype encourages. A myth of behavior can so go a fact of behavior. In other words. the stereotype becomes a usher about how to move and adjusts people in the procedure. Because persons frequently act in conformance with stereotypes. advertizers frequently define stereotypes in the hope that the mark audience will conform to them. For illustration. the lamb industry has frequently promoted the stereotype that there is something really Australian about eating lamb. ( sheep are really eaten all over the world. ) The run has been picked up by other concerns. such as McDonalds. which has besides exploited the stereotype that every bit good as eating lamb. Australians put Beta vulgaris rubra on beefburgers. For McDonalds. the stereotypes help construct a localized resonance that makes the fast nutrient concatenation appear less generic. Vegemite is another merchandise that is stereotyped as something that true Australians consume. Compared to lamb. it is possibly a better merchandise to make the Australian stereotype because it is a uniquely Australian merchandise ( made from beer barm ) and most people from other states can’t stand it.

Public International law Essay Example | Topics and Well Written Essays - 2500 words

Public International law - Essay Example With the approval of the majority of the Assembly, the Council may name additional Members of the League whose Representatives shall always be members of the Council; the Council, with like approval may increase the number of Members of the League to be selected by the Assembly for representation on the Council. Any Member of the League not represented on the Council shall be invited to send a Representative to sit as a member at any meeting of the Council during the consideration of matters specially affecting the interests of that Member of the League.Article 5 All matters of procedure at meetings of the Assembly or of the Council, including the appointment of Committees to investigate particular matters, shall be regulated by the Assembly or by the Council and may be decided by a majority of the Members of the League represented at the meeting. Article 6 The permanent Secretariat shall be established at the Seat of the League. The Secretariat shall comprise a Secretary General and such secretaries and staff as may be required. Secretary General shall be appointed by the Council with the approval of the majority of the Assembly. The secretaries and staff of the Secretariat shall be appointed by the Secretary General with the approval of the Council. ... Secretary General shall be appointed by the Council with the approval of the majority of the Assembly. The secretaries and staff of the Secretariat shall be appointed by the Secretary General with the approval of the Council. The Secretary General shall act in that capacity at all meetings of the Assembly and of the Council. Article 7 The Seat of the League is established at Geneva, Switzerland. Representatives of the Members of the League and officials of the League when engaged on the business of the League shall enjoy diplomatic privileges and immunities. The buildings and other property occupied by the League or its officials or by Representatives attending its meetings shall be inviolable. ART 3 to 6 Charter of United Nations on MEMBERSHIP requirements have almost the same requirements. PEACE AND ORDER (Art 8 - 17) Article 8. The Members of the League recognises that the maintenance of peace requires the reduction of national armaments to the lowest point consistent with national safety and the enforcement by common action of international obligations. The Council, taking account of the geographical situation and circumstances of each State, shall formulate plans for such reduction for the consideration and action of the several Governments. Such plans shall be subject to reconsideration and revision at least every ten years. After these plans shall have been adopted by the several Governments, the limits of armaments therein fixed shall not be exceeded without the concurrence of the Council. A permanent Commission shall be constituted to advise the Council on the execution of the provisions of Articles 1 and 8 and on military, naval and air questions generally. Article 10 The Members of the League

Analyzing Culture Researching Subculture Essay Example | Topics and Well Written Essays - 2500 words

Analyzing Culture Researching Subculture - Essay Example Despite the size and purpose of any subculture, one needs to be aware of the fact that it could leave a significant impact on the society and furthermore could present the possibility of proving to be life altering in the long run. This paper seeks to conduct a research into the origin of Bosozoku and how influential this subculture is in today's society - not only in Japan but also, the rest of the world. To begin with, it focuses on the starting place of the Japanese subculture called Bosozoku, when it started and by whom it was started. This has been critically analyzed to study the main purpose of their subculture and how is has changed over time. Secondly, this paper concentrates on how influential Bosozoku is within Japan and what lies behind the influence and the growth. Thirdly, it focuses on the impact it has on the rest of the world, especially the USA. Before introducing this subculture, it would be imperative to talk about the emerging trends. The rising volume of teenagers showing interest and rendering involvement to modified cars and motorbikes, boy racers and midnight rides are no longer an issue in today's society. But the question that needs to be answered pertains to where it all started and by whom. (Greenfield, 1995) In tandem with this perspective is a corresponding and rather common view is that a causal relationship exists between the policing system and low crime rates in Japan. According to these views, subcultures need to be reduced to a state where they hold minimal significance in Japan. However, numerous, visible, and significant subcultural formations continue to peacefully and unobtrusively exist in these parts. These include groupings of street youths, Bosozoku (hot-rodder) groups, and Yakuza, which may be further described as networks of male adult criminal organizations. (Sato, 1991) Bosozoku, a Japanese subculture has immensely grown to influence the Japanese society in the last 10 to 15 years (Jachim, 1993); from adults to even teenagers. Having originated as a bunch of bored bikers who went by the name of Kaminari - zoku, the Bosozokus have branched out as a group that believes in adorning themselves in traditional Japanese garb and boasting of a contrasting cosmopolitan perspective as well. The cities generally find them cruising around in sophisticated, and more often than not, bikes that are illegally modified, with an intention that seemingly revolves around teasing the local police in the peaceful suburbs. So why aren't they being taken to task The answer to that might have something to do with the implication that they might share connections with the Japanese underworld, otherwise known as Yakuza, as well as the Uyoku. That explains why most people are scared of them and regard them as dangerous. (Jachim, 1993; p. 277) Most of the assumptions that exist in the Western world regarding Japanese crime control seem to be based on notions of a specific Japanese "shame culture," in which social pressures force all individuals to conform to these laws and norms revolving around, or dictated by these subcultures. The subculture popularly referred to as "The Bosozoku - speed tribes" - basically consists of Japan's discontented youth. The Bosozoku have been around since Japan's rebirth as an industrial power after World War II; starting on September the 6th, 1959, when

Deficiency of General and Family Physicians in Canada Research Paper

Deficiency of General and Family Physicians in Canada - Research Paper Example Deficiency of general and family physicians results in protracted waiting lists to get appointments and receive services. For instance, in Massachusetts, health care coverage was expanded to comprise the uninsured in 2006. The objective was to provide residents with consistent access to physicians and treatments. With increased demand, the system became overburdened. An avalanche of disappointing statistics indicated that it takes two to five weeks to get the attention of some specialists. There is also a 15% rise in family physicians number who are not seeing new patients. The increase in levels of insured citizens shows an alarming physician shortage. It is expected that the effect will toll on the 46 million Americans presently without insurance coverage. Physician shortages are specifically evident in peri-urban and rural households, demonstrating a change in nationwide demographics relating to baby boomers and their health care desires. It also affects trends of enrollment in me dical school and their specialization. In spite of recent happenings, physician shortages have critical implications for patients. Shortage of doctors results in  poorer health output.  Patients delay in receiving care since the absence of a general physician to diagnose and treat consults with other doctors. They also move from one specialist to another to obtain a resolution. Presence of a primary care physician is significant in sustaining good health. It is problematic to have a doctor shortage, as well as general and family physicians. It is recommended by the American Association of Family Practitioners (AAFP) that 41.6 family physicians should be present in every 100,000 people. Many medical communities around the world are trying to struggle with the effects of doctor shortages. Many patients fail to seek care, regular prevention or management of chronic diseases, thus ending up in the emergency department. Many visit community health clinics since they accept walk-in patients.

Effect of Azadirachtin on Insects

Effect of Azadirachtin on Insects INTRODUCTION Humans have always been in direct competition with a myriad of insects, pests from our ancestral beginning. This competition for food with insects intensified when humans began to cultivate plants converting the natural ecosystem to an agroecosystem. Also insects serve as vectors of various diseases caused by bacterial, filarial nematode, protozoans and viruses. Therefore control of insects posed a major concern for the development of the economy. In 1939, the discovery of insecticidal properties of DDT (Dichlorodiphenyl trichloroethane) by Paul H. Mueller changed the scenario of pest management. During World War 2 DDT was extensively used to prevent epidemics of several insect vectored diseases such as yellow fever, typhus elephantiasis and malaria. This drew attention to the possibilities of more synthetic insecticides and as a result the use of pesticides in various arenas soared from 1940-60, complete reliance on pesticides intensive pest management was leading agriculture on a à ¢â‚¬Å"pesticide treadmill†. The overreliance on synthetic pesticides from late 1940s to mid-1960 was referred to as â€Å"Dark Ages† of pest control. The cheapness and effectiveness of synthetic insecticides threw natural compounds into shade. But very soon other shades also began to appear. In 1962, the appearance of book â€Å"Silent Spring† (by Rachel Carison) showed that pesticide residues were building up in ecosystem with detrimental effects on wildlife and beneficial insects. Due to extensive and intensive use, misuse and abuse of insecticides the following problems were becoming prominent and intolerable (ecological backlashes): Development of insecticide resistance- many insects started developing resistance against pesticides which increased the cost of management. Due to killing of natural controlling agents, the phenomenon of pest resurgence became more evident. Also minor pest were achieving the status of major pest i. e. secondary pest outbreak due to significant decline in its natural enemy (predators and parasites). Ecological imbalance due to poisoning of all the realms of environment. Increase in the concentration of hydrochlorinated insecticide in food chain. Intolerable residues on the food made the food obtained after such treatment uneconomical as it became unfit for consumption and unfit for exports due to high toxic residues. Killing and harmful effects on Non target organisms became more prominent (like birds, fishes and other wildlife). Overviewing these effects, there was an utmost need for the development of environmentally sound management practices. This lead to the idea of Integrated Pest Management (IPM) . A panel of experts put the concept of IPM in 1968. IPM as defined by FAO is a system which in consideration with the present environment and pest population dynamics, integrates all the sustainable techniques of pest management as compatible a manner as possible and maintain the population of pest below the level which can cause economic damage (i. e. below economic injury level). The approach is to minimize the dependence on insecticides and maximize the use of ecofriendly methods so as to cause minimum damage to the environment. Botanical pesticides, thus is an very important component of IPM as They are easily degradable. Dont affect non target organisms, natural controlling agents such as predator, parasites. Dont form residues And has no harmful effect on humans as they are very specific in action. Botanical pesticides refer to the use of chemical or organic compound produced by plants, plant products, which have harmful effects on the growth, development and survival of insect pests. Plants are a rich source of such organic compounds. HISTORY The practice of utilizing the derivatives of plant i. e. botanical pesticides in agriculture dates at least two millennia back in ancient China, Egypt, Greece and India. Even in North America and Europe, the documented use of botanicals extend back more than 150 years before the discovery of major class of synthetic chemical insecticides (OP, carbamates and pyretheroids) in mid 1930s to 1950. It is very clear from the recent history that the chemical insecticides have essentially relegated the botanical pesticides from an important role in agriculture to a trivial position in the market among various crop protection strategies. The total number of 20 phylochemicals is estimated to be 500000, so far only 10000 of these have been isolated. At present four major types of botanicals are being used for the control of insects. These include: Pyrethrum Neem (Azadirachtin). Rotenons. Essential oils. Others are in limited use like Ryania, Nicotine, Sabdella. Whereas Nicotine, Rotenene, Natural Pyrethrins constitute the outstanding example of older botanicals, extracts and compounds from the Neem tree (A. indica) have emerged as the most prominent phytochemical pesticides in recent years. Among the various biologically active compounds that can be extracted from the Neem tree like- triterpenoid, phenolic compounds, carotenoids, steroids, ketones; the tetranortriterpenoid azadirachtin has been the most extensively studied pesticide as 1) it is relatively abundant in Neem kernels. 2) has biological activity on a wide range of insects. PLANT SECONDARY METABOLITES Plants produce a large, diverse array of organic compounds that appears to have no function in growth and development. These substances are known as SECONDARY METABOLITES or secondary products or natural products. Secondary metabolites differ from Primary metabolites (amino acids, nucleotides, sugars, acyl lipids) as: They have no direct roles in photosynthesis, respiration, protein synthesis etc They have restricted distribution in plant kingdom. In a seminal paper Fraenkel stressed the role of secondary metabolites as defense system against insects, pests and other natural enemies. Though they play no role in growth and metabolism they play important ecological role in plants: They protect plants against being eaten by herbivore and being infected by microbial pathogen. They serve as attractants for pollinators and seed dispersing animals and as agents of plant-plant competition. Because of their ecological role, plant secondary metabolites are classified as ALLELOCHEMICALS, a term coined by WHITTAKER. An allelochmical is defined as a non nutritional chemical produced by an individual of one species that affects growth, health, behavior, population ecology of another species. Plants produce an astonishing array of Secondary metabolites. Even a single plant species may produce an extensive pharmacopeia of recondite chemicals. Periwinkle for example contains about more than 100 monoterpenoid indole alkaloids. It has been estimated that plant kingdom synthesizes hundreds of thousands of different secondary metabolites. The no of identified compounds now exceeds 10000. Secondary metabolites as plant defense is result of co evolution between plants and herbivores Plant secondary metabolites can be divided into three chemically distinct groups: TERPENES PHENOLICS NITROGEN CONTAINING COMPOUND TERPENES The terpenes constitute the largest class of secondary products . the diverse substances of this class are generally insoluble in water. They are biosynthesized from acetyl coA. Terpenes are classified by no of five carbon units they contain as: Monoterpenes: Contain 2 five carbon skeleton Sesquiterpenes: Contain 3 five carbon skeleton Diterpenes: Contain 4 five carbon skeleton Triterpenes: 30 carbons Tetraterpenes: 40 carbons Polyterpenoids: (C5)n,where n>8 Some terpenes have role in growth and development Terpenes defend against herbivore in many plants. Terpenes are toxins and feeding deterrentsto many plant feeding insects, thus they appear to play important defensive role in plant kingdom and protection of agricultural crops. Examples of important Terpenes: PYRETHROIDS: These are monoterpenoid that occurs in leaves and flowers of Chrysanthemum species show very striking insecticidal activity. Both natural and synthetic pyrethroids are popular ingredients in commercial insecticide because of their low persistence in the environment. Pyrethrum is the predominant botanical in use accounting for 80% of global botanical insecticide. ESSENTIAL OILS: These are the mixture of monoterpene and sesquiterpene that lends a characteristics odor to the foliage . e. g Menttholin Peppermint oil and Limonenein lemon oil are monoterpenes. Essential oils have well known insect repellent properties. They are frequently found in glandular hairs and serve to advertize the toxicity of plant repelling potential. Phytophagus insects even they take a trial bite. VOLATILE TERPENES: In corn wild tobacco certain monoterpenes and sesquiterpenes are produced and emitted only after insect feeding has already begun. These substances prevent oviposition and kill plant feeding insects and so help in controlling further damage. These also attract natural enemies of plant feeding insects so promise a sound means of pest control. LIMNOIDS: These are a group of nonvolatile Triterpene. Among these the most powerful deterrent to insects feeding known is Azadirachtin. It is a complex limnoid from Neem tree which is feeding deterrent to some insects at as low as 50ppm and it exerts a variety of toxic effect. It has considerable potential as a commercial insect control because of its low toxicity to mammals. PHENOLICS Plants produce a variety of secondary products that contain a phenol group, these are called phenolic compounds. Plants phenolics are a chemically heterogeneous group of nearly 10000 compounds . many of these serve as defense compounds against herbivores. The release of phenolics into soil limits the growth of other plants. LIGNIN a highly branched polymer of phenylpropanoid group has significant protective function in plants. Its physical toughness deters feeding by insects and chemical durability makes it relatively indigestible. The flavoids are one of the largest classes of plants phenolics e. g. anthocyanins, flavones etc. Anthocyanins are colored flavonoids that attract insects to flower and fruits by providing visual and olfactory signal. Flavonoids protect against damage by UV light. Tannins deter feeding by herbivores and it also act as feeding repellents to a great diversity of insects NITROGEN CONTAINING COMPOUND A large variety of plant secondary metabolites have nitrogen in their structure. This category includes well known defense against phytophagus insects as alkaloids and cyanogenic glycosides,glucosinolates. ALKALOIDS: These are a large family of more than 15000 nitrogen containing secondary metabolites with a heterocyclic ring. Several different types including nicotine and its relative are derived from ornithine . Most alkaloids now function as defenseagainst their predators because of their toxicity and deterrence capability. Alkaloids increase in response to initial damage fortifying against further damage e. g. wild tobacco produces higher level of nicotinefollowing damage by tobacco caterpillars. CYANOGENIC GLYCOSIDES: These are not toxic themselves but are readily broken down to give off volatile poisons; well known poisonous gas Hydrogen cyanide. When the leaf is damaged due to insects feeding on it, the cell content of different tissue mix and HCN is formed. HCN is a fast acting toxin that inhibits metalloprotiens such as iron containing cytochrome oxidase; a key enzyme of mitochondrial respiration, thus affecting physiology of insects. Thus presence of cyanogenic glycosides deters feeding by insects. GLUCOSINOLATES: A Class of plant glycosides that break down to release volatile defensive substances, also called Mustard oil glycosides. Found principally in the Brassicaceae and related plant families, where glucosinolates give off compounds responsible for smell and taste of vegetables like cabbage, cauliflower, mustards etc. These compounds function in DEFENCE as toxin and feeding repellent. But certain insects are adapted for feeding on glucosinolate containing plants without ill effects. For example glucosinolates serve as stimulant for Cabbage butterfly for feeding and egg laying and isothiocyanates serve as volatile attractants. PLANT PROTIENS: Certain plant protein also interfere with insect digestion, for example plants produce LECTINS,defensive proteins that bind to epithelial cell lining digestive tract and interfere with nutrient absorption. The best known anti digestive proteins in plants are protein inhibitors found in legumes, tomatoes, and other plants. After entering herbivores digestive tract they interfere with protein digestion, as a result insects suffer reduced rates of growth and development. THE NEEM TREE, PROPERTIES AND DISTRIBUTION The Neem tree also known by names like Indian Lilac, Margosa tree is an evergreen fastgrowing tree belonging to the order â€Å"Rutales† and family â€Å"Meliaceae†. The genus Azadirachta indica was described by A. juss in 1830. DISRIBUTION Neem tree is indigenous to Indian Subcontinent from where is has spread to many Asian and African countries such as Pakistan, Bangladesh, Mynamar, Sri Lanka, Thailand, Indonesia, Malaysia, Singapore, Iran, Yemen, Australia, New Guinea, Nigeria, Fizi, Tanzania, Madagascar, USA, Latin America, Germany, France, Portugal, Spain and UK. It is now grown in most tropical and sub-tropical parts of the worls. The origin of A. indica is not very clear. Some say that is has originated from Burma whereas others point it to south India. It is considered that it has originated from south-eastern and southern Asia. In Indonesia Neem exists in low lying Northern and Eastern parts of java. In Philippines it was introduced from India, Africa. Ketkar (1967) reported about 14 million trees in India. There are more than 20 million trees available in entire India. In Africa Neem was introduced from India and is concentrated in a belt stretching across the African continent from Somalia to Mauretania. In America Neem trees are prominent in Haiti, Surinam and propagation has started in Brazil, Puerto Rico, Cuba and Nicaragua. Neem trees also grow in our neighbouring countries, Middle East, Saudi Arabia and Yemen. HABITAT Neem tree is a fast growing sclerophyllous tree. It grows well in humid to semi-humid climate. It thrives well at altitudes upto 700-800m above the sea level. Neem trees are hardy and are able to grow in severe drought condition also. They thrive well in regions with less than 500 mm annual rainfall and upto 2500 mm annual rainfall. Neem tree exist in poor, shallow, sandy and stony soil. It also grows in black cotton soil in India. Neem tree can flourish in warm to very hot climates. It grows well between 21-320c temperatures but it can tolerate upto 500c during summer. Ph value between 6. 2-7 seems to the best for the growth of Neem tree. CHARACTERISTIC FEATURES It is a fast-growing tree, reaching a height of 4-7 m during the first 3 years and 5-11m during the following 5 years. It begins to bear fruit within 3-5 years and becomes fully productive in the 10th year, when it may yield up to 50 kg fruit per tree per year. The Neem tree produces its fruits, which are the main source for its production of pesticides, on drooping panicles, usually about once a year, although two fruiting periods per year occur in certain areas (e. g. West Africa). A mature Neem tree produces annually 30-50 kg of fruit, but this may depend upon rainfall and soil conditions. More conservative estimates range around 20 kg per tree; 40 kg of fresh fruit yield about 24 kg of dry fruit. Neem has the reputation of possessing a large number of biological activities which include insecticidal, nematicidal, bactericidal, and anti-fungal. It has attracted world-wide attention due to its wide ranging capacity as a biocide. PESTICIDAL CONSTITUENT OF NEEM Neem tree is the only tree in which every part of tree produces biologically active products which has various properties such as antifeedant, deterrent, growth regulation, oviposition alteration, insecticidal properties, fungicidal properties,etc. Though bark, heartwood, leaves, fruits of it produce these substances in various concentrations but it is the fruits specifically seeds which are of major importance. Neem seed kernels contain the highest amount of the active compound. 40-50 kg of fruit can yield about 5 kg of kernels (10% of fruit). Each seed contains about 1-3 kernels. Till date more than 140 active principles have been identified in different parts of the tree. Insecticidal properties of Neem is due to the presence of a class of Limnoids which include compounds like Azadirachtin, Melantriol, Salanin, Mimbines, Salannol and various sulfur containing compounds. Among these Azadirachtin is the most active and predominant insecticidal compound concentrated mainly in the seed kernels. The Azadirachtin occurs in seeds at the concentration of about 0. 1-0. 9%. It is estimated that 20-30 kg of Neem seeds are required per hectare if 2g of Azadirachtin per kg of sed is obtained. The highest yield of Azadirachtin obtained till date was about 10g/kg of seed. AZADIRACHTINAND ITS STRUCTURE Azadirachtin is a highly oxidized limnoid chemically being a tetranortriterpenoid and is the main component responsible for both anti-feedant and toxic effects in Azadirachtin. Butterworth and Morgan were the first to isolate Azadirachtin in 1968 from Neem seed. Morgan established correct molecular formula of Azadirachitn (C55H44O16). In 1971 they developed a simplified method to isolate azadirachitn by doing solvent partitioning followed by column and preparative thin layer chromatography. However its structure was determined in 1975 by Nakanishis team through the application of new NMR methods. There were some inaccuracies in the given model. Then again renewed efforts were made by the group of Ley, Kraus, Nakanishi and they gave the correct structure by using X-ray crystallography. A. indica produces a plethora of triterpenoids, the biosynthesis of which culminates in azadirachtin. The biosynthesis of azadirachtin starts with a steroid precursor tetracyclic triterpene â€Å"tirucallol†. Opening of C-ring followed by processing via two main levels of structural complexity i. e. furan ring formation leads to Azadirachtin. VARIOUS PESTICIDAL FORMULATIONS Neem insecticides which are obtained from Neem seeds contain various arelated triterpenoids in addition to the Azadirachtin. However their efficacy is related directly to the content of Azadirachtin. These compounds do possess biological activity and they add to its effects. Pure Azadirachtin was shown to be effective in the fields (Mordue et al, 1997) but the natural mixtures of azadirachtin in Neem insecticides may usefully mitigate against the development of resistance compared to azadirachtin alone (Feng and Isman, 1995). The complex nature of azadirachtin and other sophisticated Neem constituents prevent their mass production by synthesis in the foreseeable future. The pesticidal Neem products used in practice include dried leaves, whole seed, decorticated seed, seed kernels, Neem oil, and Neem cake, remaining after extraction or extrusion of the oil from the seeds. Several Indian companies or institutions produce commercially Neem-based insecticidal formulations, such as RD-9 Repelin and Wellgro, for spraying against cutworms and other insect pests in tobacco growing areas; Nimbosol and Biosol for control of whiteflies; and the products Neemrich and Neemark, the latter also as an azadirachtin-enriched granular Neem formulation. In the U. S. A. , the EPA hasgranted registration to Margosan-O, an azadirachtin-enriched, concentrated Neem seed kernel extract formulation, for use on non food crops and ornamentals. Margosan-0 was developed by R. Larson of Vikwood Botanicals Inc. at Sheboygan, WI, in colla boration with the USDA Agricultural Research Center at Beltsville, MD. The rights to this product, which contains 0. 3% azadirachtin and 14%Neem oil (the 0 in the name of the product stands for oil), and has an oral toxicity in excess of 5,000 mg/kg in rats. Margosan-0 has been evaluated successfully against an extensive series of insects in the U. S. A. and Canada, Lyriornizu leafminers on ornamentals and tomatoes, cotton bugs, cockroaches and mosquitoes. Margosan-0 demonstrated highest activity against Ostriniu nubilalis , and against leafhoppers, against two species of local cotton pests, Enrias insulana and Spodoptera littoralis. Recently in the U. S. A. a further Neem formulation, developed. under the auspices of the Natural Products Institute, Salt Lake City, UT is †Azatin†(Agridyne Technologies, Salt Lake City, UT). Also, Safer Ltd. , a Canadian manufacturer specializing in environmentally safe pest control formulations, developed insecticides based on Neem. Safer , however, has been acquired recently by Ringer Corp. , Minneapolis, MN, which distributes Margosan-0 in the home garden market under the tradenames of â€Å"Bioneem† and â€Å"Neemesis†. Contrary to registration practices in use until now, no precise chemical descriptions of all the ingredients of Margosan-0 were required, but rather, demonstration of the biological activity and innocuousness of the whole mixture to no target organisms was used in the registration process. Hopefully such specially tailored toxicity studies will be used to judge and register Neem and similar natural products in the future. A recent report claims that the EPA has approved a Neem-based biological pesticide developed by an Indian company for use on a wide range of food crops. MODES OF ACTION Major modes of action of azadirachtin are: Powerful IGR. Feeding Deterrant. Oviposition Deterrant. These are the three modes of action of azadirachtin which make azadirachtin much sought after biopesticide in todays agriculture industry. IGR: Azadirachtin acts as a powerful growth regulator for insects and this IGR effect is the most pronounced mode of action of Azadirachtin. Normally IGR effect the hormonal system of insects, preventing the insects from developing into normal mature insects. This IGR property of Azadirachtin doesnot leads to immediate death of insects, pests. Azadirachtin as an IGR: The IGR property of Azadirachtin arise due to the fact that: Azadirachtin is structurally analogous to natural hormone Ecdysone. As Ecdysone regulates the development of insect, any disruption in its balance leads to improper development. Also Azadirachtin interferes with the production and reception of Ecdysone at the time of insects growth and moulting. Thus Azadirachtin in this manner block the moulting cycle resulting in the death of the insect, pest. The main action of Azadirachtin appears to be at the release site of PTTH. The mode of action of Azadirachtin as IGR is thus an Indirect Physiological Effect. It is exerted via the endocrine system. The copora cardiaca is supposed to be the target for the Azadirachtin as is affects the PTTH, Eclosin Hormone, Bursicin Hormone release. PTTH release is inhibited rather than Ecdysine from Prothorasic gland. Thus the Azadirachtin affects the neurosecretory cells of Brain. Various experiments show that Azadirachtin doesnt directly act on Prothorasic Glands. In the in vitro culture of Prothorasic (H. virescens) gland showed that the PTTH induced release of the Ecdysine was medium (Bidmon et al, 1987, Barnby and Klocke, 1990). Also it was not blocked in PTTH simulated cultured glands from M. sexta pupa penetrated with Azadirachtin in last larval instar (Pener et al, 1988). However receptivity of Prothorasic gland to PTTH was affected in H. virescens. Neurosecretory proteins stained with paraldehyde in L. migratolia females when was compared with similar aged azadirachtin treated females there was an accumaulation of stainable material in corpora cardiaca of brain neurosecretory system in treated insects. Thus is appears that azadirachtin blocks release of neurosecretory material from corpora cardiac. It can thus be concluded that Azadirachtin does block the release of peptide hormones from brain neurosecretory cell corpora cardiac complex. Azadirachtin also exhibit IGR effect by altering the titre of Juvenile Hormone (JH). Azadirachtin affects the release of allotropins into corpora dillata hence block the synthesis and release of the Juvenile Hormone. This block leads to a rapid decrease in whole body JH titres, which is maintained for several days. Experiments prove that in M. sexta larvae, azadirachtin infection on day 0 (1. 0-10  µg/ larva) results in induction of supernumerary moults (Sch et al, 1985; Beckage et al, 1988) presumably due to an inhibition and subsequent delay in JH titre. In adult female L. migratolia also azadirachtin treatment causes a rapid decrease in juvenile hormone titres with associated disturbances in oogenesis (Rembold, 1984; Rembold et al, 1987). Thus, on a conclusionary note, the effect of azadirachtin is both dose and time dependent. It prevents both apolysis and ecdysis and thus can cause death before the moults, during the moults or delays of moult to form permanent larvae. Feeding Deterrance: Feeding behavior is both dependent on chemical senses stimulated due to contact chemoreceptors on trasi, mouthparts and oral activity and integration of the sensory code with the CNS. Azadirachtin acts as feeding deterrant. Inhibition of the feeding behavior occurs: There are receptors present on and around mouthparts of insects which normally respond to Phagostimulants. So azadirachtin may act by blocking the input from these receptors. Also there are present specific â€Å"deterrent cells† in insects which prevent insect from feeding. Azadirachtin acts to stimulate these â€Å"deterrent cells† leading to feeding deterrence. Many experiments were done in this regard. Using different concentration of sucrose and azadirachtin, either singly or together, the neurophysiological responses from  ­Ã‚ ­Ã‚ ­Ã‚ ­Ã‚ ­medial and lateral sensillia styloconica of maxillae showed different group of receptors are receptive to sucrose (sugar cells) or azadirachtin (deterrent cell) in S. exempta and M. brassicae in most of the cases, the rate of firing of sugar sensitive cells were reduced in presence of both chemicals (Simmonds and Blaney, 1984). Such an interaction was also found in P. brassicae. This leads to a reduced or complete inhibition of feeding. Direct mode of action: Incorporation of azadirachtin results in direct toxic effect after ingestion. Azadirachtin prevents the secretion of Proteolytic enzymes and thus significantly impair ability of insects to digest and absorb nitrogenous food. When azadirachtin is ingested it can result in the disfunctioning of gut, as a result of which midgut epithelial cells become round. Swelling of cells and organells occur with some vacuolization and cell burst resulting in necrosis (as observed in S. gregarea and L. migratolia Naseruddin and Mordue (Luntz), 1993a; Cottee, 1984). There is also reduction in the regenerative cells and increase in the connective tissue layer with some invading heomocytes. This would lead to disruption of enzyme secretion and nutrient absorption. Also the antifeedant effect can be attributed to the action of azadirachtin on the peristaltic movement of gut wall. The gut of treated insects lack tone, midgut to hindgut junction becomes flaccid and co-ordinated peristalsis is lacking which leads to antifeeding behavior. EFFECT OF AZADIRACHTIN ON INSECTS Effects on Feeding Azadirachtin is a classical example of a natural plant defence chemical affecting feeding. Antifeedancy is the major insecticidal effect of Azadirachtin. Antifeedant effect in insect pest on application of Azadirachtin is divided into two main categories: Primary Antifeedancy: It refers to the deterrence of feeding in insects. Primary Antifeedancy is also called Gustatory antifeedancy. It can be defined as the inability to ingest resulting from the perception of antifeedant at a sensory level (Schmutterer 1985). Insects fail to eat treated crops and as starvation ensued results in the death of insects. Secondary Antifeedant effect: It refers to the non-feeding after the ingestion of treated plant. Secondary antifeedancy is also called Non-Gustatory antifeedancy. It can be defined as the reduction in food consumption and digestive efficiency subsequent to and as a consequence of ingestion, application or injection of antifeedant (Schmutterer, 1985). Experiments conducted in the past in this regard by various persons: The first detailed experiment was conducted in S. gregaria (desert locusts) in India. Insects from different orders show marked difference in their response to azadirachtin. (Table 1) Lepidopteras showed extreme sensitivity to azadirachtin and depending upon species, effective anti-feedance was observed from less than 1 to 50 ppm. Hemiptera (Homoptera), Coleoptera are less sensitive to azadirachtin with 100 % antifeedancy observed at 100-600 ppm. However, in Orthoptera wide range of sensitivity has been observed. Reed and Pierce in 1981 tested the repellant effect of Neem extract to striped cucumber beetle (A. vittateim), by cutting leaves and dipping them in extract solution and placing them in a dish with untreated leaf pieces. When 5 fasting beetles were placed in a dish, 0. 1 % azadirachtin gave protection for atleast three days. The intake of food by various homopteran insects Nilaparvata lugens, Nephotettix virescens was significantly reduced on rice plants sprayed with 1-50% emulsion of Neem oil. ( ). In green rice leafhopper, N. virescens feeding on the phloem of neem oil treated plants (1. 25-10%) was significantly less than of solvent treated control plants, whereas xylem feeding increased. Hemipteran insects feeding on tobacco seedlings which had been systemically treated with 500 ppm azadirachtin, were shown initially to feed normally but, after termination of the initial feed, the interval prior to the next subsequent feed was significantly increased and feeding activity thereafter was suppressed (Nisbetet al. 1993). When azadirachtun was impregnated on discs at a concentration of 0. 1-10 ppm, S. littoralis(African cotton leafworm),Spodoptera frugiperda(J. E. Smith) (fall armyworm),Heliothis virescens(F. ) (Tobacco budworm) andHelicoverpa armigera(Hà ¼b. ) (Old world bollworm) showed significant beh avior response and are prevented from feeding on the discs dependent on species (Blaney et al. 1990, Simmonds et al. 1990, Mordue (Luntz) et al. 1998) Insects from different Orders differ markedly in their behavior responses to azadirachtin (Table 1). Lepidoptera are extremely sensitive to azadirachtin and show effective antifeedancies from

Identifying Lesbian and Mother :: Argumentative Persuasive Papers

Identifying Lesbian and Mother In her 1995 book, "On the Outside Looking In: The Politics of Lesbian Motherhood", Ellen Lewin presents the phenomenon of lesbian women who, through childbirth, gain access to the heterosexual community as an in-group member. At first glance, Lewin's observations seem to subvert traditional inside/outside ideology, portraying the boundaries of the hetero- and homosexual worlds as permeable rather than rigidly, relationally exclusive. A more exhaustive analysis, namely of the accounts of the women Lewin interviews, serves instead to reinforce inside/outside construction in relation to self and perceived identity. While the women are 'allowed' into the selective sphere of heteronormality, they do not cross these categorical lines as both 'lesbian' and 'mother'. This paper will argue that the terms 'lesbian' and 'mother' are mutually exclusive, perhaps not in reality, but in the capacities of identity, performance, and location within an inside/outside dynamic. Lewin prefaces her analysis with a glance at the classic Western representation of the lesbian. This depiction focuses on the exclusion of lesbians from typical female roles of "motherhood" and "nurturing"; being a mother carried an implied notion of heterosexuality, therefore, lesbianism and motherhood "cancelled each other out in the popular imagination" (107). Indeed, many of the women surveyed shared the sentiment of motherhood as "overwhelming and engulfing other dimensions of their lives—including what they considered the lesbian component" (109). While this may be ascribed to the daunting tasks of mothering and childcare, the women pointed to a more self-appropriated explanation as they echoed one another in their tendencies to "downplay the significance of their lesbianism in giving accounts of themselves [as mothers]" (110). Simultaneously, these women were rooting themselves more deeply in the heterosexual world and losing ties with the homosexual world. Many of the reports quote the lesbian mothers as feeling stronger ties to the world they share with straight women than with other lesbians. Many felt the lesbian community to be unfriendly to lesbian mothers. One woman was even asked to leave her all-lesbian rap group after her child was born, as her fellow group members believed she was no loner "attuned to lesbian issues" (124). The question remains as to why straight mothers, as a representation of the larger heterosexual community, would be so quick to ally themselves with lesbians, even lesbian mothers. For a scholar of feminist theorist Diana Fuss, this coalition seems to threaten the inside (read: dominant) status of heterosexual society.

Chemistry Experiment: Bubble Blowing

Bubble quality Is most positively affected by the mixture of sugar and dish detergent due to the sticky consistency of sugar when emerged in liquid. Procedure: First of all, three cups were labeled according to their solution.Then, a teaspoon of dish soap and two-thirds of a cup of water was added and mixed to make cup#l . Next, a half teaspoon of table sugar was added to the same control solution and was named cup #2, as well as half a teaspoon of table salt to cup #3. After that, a straw was used to blow bubbles, by being dipped into each solution separately and blown through. Finally, data was recorded.Control Sugar salt Appearance of Solution Colorless – More translucent than control – Cloudy Bubble Size – Generally small; occasionally medium – Consistently medium-sized; bigger than control – Medium to large Ease of Bubble Blowing – Easy to blow – Must be gentle – Moderately easy Some strength and speed needed – Diffi cult – Must be gentle and slow *Relative Time Before Bubbles Popped – 5-10 seconds 15-20 seconds – 10-15 seconds * Time started when bubble left straw and popped, under any circumstances, such as touching objects.Analysis: The effects of adding table salt and sugar are positive, In comparison to the control. Both of the added ingredients made the overall bubble quality stronger. The refusing to pop for about 15-20 seconds. This is most likely because when sugar dissolves, it becomes sticky; therefore, it would make a tackier bond with the dish soap than the control. On the other hand, although very slow and gentle blows were deed to produce adequate bubbles with the salt solution, it was much stronger than the control; its relative time before the bubbles popped was about 10-15 seconds, whilst the control only lasted around 5-10 seconds.Hence, if one were to pick out the strongest solution, the table sugar mixture would be the best. Conclusion: The previous hypo thesis that, bubble quality improves with the addition of sugar, has been proven true. To improve this experiment, an increase in amount of the table salt and sugar should be made. This will create a more drastic and clear difference. Also, a bigger area of space would allow the bubbles to freely move and give more accurate times on their survival.Another hypothesis regarding bubble making is that adding both, salt and sugar, to dish soap will boost the bubble quality. By taking in both strong qualities of the sugar solution's strength and the salt's size, this solution will be better than both the salt and sugar mixtures alone. In order to do this, one teaspoon of each ingredient, salt and sugar, should be added to a two- thirds cup of water. Stir well, and blow with adjustments to speed and strength, with a straw.

Federal Laws Protecting Employees in the Workplace essays

Federal Laws Protecting Employees in the Workplace essays Introduction: There are a number of federal laws protecting employees in the workplace. Included in them are the Fair Labor Standards Act, the Equal Pay Act, the Occupational Health and Safety Act, and the Age Discrimination in Employment Act. According to Dana Shilling in her book Human Resources and the Law, the Age Discrimination in Employment Act of 1967 (ADEA) was passed to protect older workers who are still able to carry out vital job functions. Under the ADEA, employers with twenty or more employees are prohibited from discriminating against employees over forty years of age in hiring, compensation or other employment related areas including training, promotions or layoffs and terminations. The ADEA does not prohibit the discharge of employees over the age of forty for good cause or employee misconduct. The ADEA does prohibit employers for retaliating against older workers that file complaints under the ADEA alleging that they are being discriminated against because of their membership in a protected class. Under the ADEA, the basis for termination must be a reasonable factor other than age. In any scenario in which retaliation by an employer is alleged, the burden of proving it can be difficult according to Shilling. Each federal law that protects workers has a different set of facts and factors used to determine if there is a prima facia case for a lawsuit. In the case of the ADEA, Shilling writes that a prima facia case for an ADEA lawsuit would be one in which the following criteria are met: The plaintiff or complainant is part of the protected group meaning he or she is over forty The plaintiff was qualified for the position that he or she held or was applying for The plaintiff was discharged, not hired, demoted, not given a raise, or in some other way was discriminated against on the basis of age (Shilling, 1998) Introduction: According to Mike Deblieux in his book L ...

Free Essays on Return With Honor

Return With Honor By: Capt. Scott O’Grady â€Å"Return With Honor† is a book whose author was an American pilot, Scott O’Grady, who was shot down above Yugoslavia in his F-16 fighting falcon. He tells about how he managed to survive and evade capture. He describes the religious trials he went through and what key events took place before, during, and after his ordeal. He begins by explaining how he had become an Air Force pilot, and how he managed to end up in the triple nickel squadron in Italy. On the day he was shot down his commanding officer, â€Å"Wilbur† asked him if he wanted to fly a mission that day. He hadn’t flown a mission all that month so if he flew one that day he would’ve gotten an extra 150$ for hazard pay, he figured why not and agreed. In the locker room he suited up, put on his G-suit, boots, and helmet, but he forgot his flight vest. O’Grady didn’t want to take everything off and put it back on again just for the vest, so he went on and decided to crank up the excellent climate control system in his F-16. He didn’t know how much he would need that extra layer of clothing in the up coming days. On this mission he was to be a wingman for â€Å"Wilbur†. They both took off and headed for Yugoslavian air space. On their trip they switched formations various times and their computers told them constantly that other radar stations were watching them. The both of them ignored the computer’s warning until it told Mr. O’Grady that a missile was tracking him. He looked around for the white trail of smoke and didn’t see the missile. It barely missed him and â€Å"Wilbur†, then he heard another warning that another Surface to Air missile was tracking him. Before he could turn his head the missile slammed directly into the middle of his fuselage. The airplane broke into two halves and he started to plummet towards the ground. O’grady pulled the handle of his ejection suit and rocketed out of his... Free Essays on Return With Honor Free Essays on Return With Honor Return With Honor By: Capt. Scott O’Grady â€Å"Return With Honor† is a book whose author was an American pilot, Scott O’Grady, who was shot down above Yugoslavia in his F-16 fighting falcon. He tells about how he managed to survive and evade capture. He describes the religious trials he went through and what key events took place before, during, and after his ordeal. He begins by explaining how he had become an Air Force pilot, and how he managed to end up in the triple nickel squadron in Italy. On the day he was shot down his commanding officer, â€Å"Wilbur† asked him if he wanted to fly a mission that day. He hadn’t flown a mission all that month so if he flew one that day he would’ve gotten an extra 150$ for hazard pay, he figured why not and agreed. In the locker room he suited up, put on his G-suit, boots, and helmet, but he forgot his flight vest. O’Grady didn’t want to take everything off and put it back on again just for the vest, so he went on and decided to crank up the excellent climate control system in his F-16. He didn’t know how much he would need that extra layer of clothing in the up coming days. On this mission he was to be a wingman for â€Å"Wilbur†. They both took off and headed for Yugoslavian air space. On their trip they switched formations various times and their computers told them constantly that other radar stations were watching them. The both of them ignored the computer’s warning until it told Mr. O’Grady that a missile was tracking him. He looked around for the white trail of smoke and didn’t see the missile. It barely missed him and â€Å"Wilbur†, then he heard another warning that another Surface to Air missile was tracking him. Before he could turn his head the missile slammed directly into the middle of his fuselage. The airplane broke into two halves and he started to plummet towards the ground. O’grady pulled the handle of his ejection suit and rocketed out of his...

In the character of Gatsby. Fitzgerald holds the idea of the american Essay

In the character of Gatsby. Fitzgerald holds the idea of the american dream up to ridicule. with reference to appropriately sele - Essay Example He based his life on the ever thoughts of money; how much he earned and how much possessions he made. He thought that money brings with it many other advantages. The only purpose behind his lust for wealth was to win back his lost old love. Why he pursued money was because his love had left him for money. Daisy, his love considered him unworthy in the past because he was a lower class person. He was sure that if he remained poor, she was never to allow him to make a reunion. He was poor and thought all the days and nights about Daisy that she was waiting for him to come and take her. He thought that Daisy â€Å"was tired of waiting around for me† (Fitzgerald, p131). Gatsby believed he could win her provided he reaches for what most of the people considered as â€Å"American Dream†. Money was his ideal. He had complete faith in wealth. His worthless life existed on the foundations of falsehood. Gatsby ridiculed the â€Å"American Dream†. He was able to get to his desire and aspiration when he became a wealth man. He employed in a number of jobs the whole of his life and this was but to show to Daisy what he could give her. He wants to win back his love by making yet another entry to Daisy’s life. When he meets her, he reminds her the past and assures her that he did not forget her. Her sweet memories always accompanied him. He reveals before the already married Daisy that he still loved her: â€Å"Look at this†, said Gatsby quickly. â€Å"Here’s a lot of clippings about you† (Fitzgerald, p93). Gatsby was the perfect personification of â€Å"American Dream† held up to ridicule. Wealth determined all his actions and he always thought with the mindset of a businessman, more suitable, a shopkeeper. He believed in wealth to the extent that he was sure he could bring his past back. He had a firm trust in his money to the extents that he thought Daisy would happily leave her husband in the pursuit of money he had. He was not influenced by the general perception that people change with respect to the passage of time. He once stressed his view when said rhetorically: â€Å"Can’t repeat the past. Why of course you can!† (Fitzgerald, p111). When he loses his love to a wealthy man, he decided at once to get to the status of the richest man of the world. Poor by birth, he gathers around him vast amounts of wealth and high social status. He ridicules the â€Å"American Dream† by desiring to become the wealthiest man of the world and ultimately the ruler of the whole world. He wants to be God. Nick speaks of him as an extravagant and flamboyant person. Gatsby is no doubt the real symbol of ridiculous excess and waste of Rich American Socialites. He believes that his royal mansion can be the key of his success. His â€Å"American Dream† turning into ridicule has been described by Nick when he refers to his mansion: â€Å"The one on my right was a colossal affair by any st andard-it was a factual imitation of some hotel de Ville in Normandy, with a tower on one side, spanking new under a thin beard of raw ivy, and a marble swimming pool, and more than a forty acres of lawn and garden† (Fitzgerald, p5). When Mayor Wolfsheim had seen the opportunity to achieve the â€Å"American Dream† by making enormous money at once after having fixed the World Series, Gatsby ensures his â€Å"American Dream† by appreciating Wolfsheim’

American Indians and horse culture Essay Example | Topics and Well Written Essays - 1000 words

American Indians and horse culture - Essay Example Makes me wonder how nomads make it? They abuse and take off. No holds bar to sentimentality or reason because this does not stay factual to them. They keep on relocating- must they be finding something they subconsciously know can never be theirs? The persistence results to instability and desire for what is not present. It seems as if we people, from all cultures relish the idea of wanting the impossible. The myth that lies between nomads comes real today because people endlessly desire and at the end of it all, they lose all of the little they ever had. Do people want anything they are not ? Unconventional approach is what the writer used in this poem and the directive phrases and words comprise a tone of demand that yields the inner questioning he has for himself. There is a constant mention of the horse culture. The relation of each of the characters presiding in the plot are brought about a commonality and this would be the horse culture. Inconsistent, unstable and restless – qualities of the people he is referring to. This I believe are the same people I deal with each and everyday. Everybody is a half-breed struggling to learn about their horse culture – One of the last lines in the poem that struck me the most and led me to my thesis statement. The struggle and competition is never ending because people want more and more when there is not much to consume aside from each other. This American Indian heritage symbolizes the globalization of all humanities that have converged to meet the demands of disorienting racial discrimination. People are opening their minds all across the globe to get the best of everything – since standards are rising, they must keep up. Their own â€Å"ghosts† – at least they ones they named for themselves are rapidly approaching and they must escape.