Thursday, October 31, 2019

Implementing Electronic Health Record innovations for Pressure Ulcer Essay

Implementing Electronic Health Record innovations for Pressure Ulcer Prevention and Management - Essay Example Regardless of the size of the project, the proper integration of a skilled workforce, proven strategies and technology at MICU, would see the successful implementation of the program in various units for easy use by clinicians. If properly utilized, EHR can be the silver bullet to the problem of inconsistencies that are the order of the day in documenting pressure ulcer management processes through paper-work. Prevention of Pressure Ulcer According to Hagens and Krose (2009), to maximize the benefits the EHR for Pressure Ulcer prevention and management, it would be vital to keep problem lists, medical prescription lists and sensitivity lists in all units handling the patients s(National Pressure Ulcer Advisory Panel, 2007). In the MICU case, medical assistants or skin care specialists should enter medications and sensitivities from the paper work, and physicians would enter the problem lists. It would be appropriate to enter data shortly before an appointment is due, and take the cha rt to scanning. In doing so, the pressure ulcer management units will have an entirely electronic chart ready for patient handling when the patient arrives at the units (Kerr, 2009). Alternatively, it would be appropriate to enlist registered nurses for the task of problem list entry before the program is ready for use by various clinicians. Assessment for Pressure Ulcer For acute care, the first assessment should be carried out on admission and after every 1-2 days or whenever the condition of the patient changes (Clarke, Bradley, Whytock, Handfield, Van der Wal, & Gundry, 2005). At MICU, the system would be programmed to notify the health care providers to do assessments every 24 hours. For home health, the first assessment would be carried out on admission, and re-examination done as soon as the patient resumes care, during recertification, refer or release, or whenever the patient’s health condition changes (Adler, 2010). At MICU, it would be appropriate to reassess the p atient’s condition at each nursing visit. And for long-term care in MICU, the initial screening for patients would be appropriately done on admission and every week during subsequent missions. Determining Risk Levels Several electronic tools for risk assessment are accessible to assist in predicting the level of risk of the disease (National Pressure Ulcer Advisory Panel, 2007). They include machines with values that when summed up together, can enable the health care providers to determine the risk score in totality. The Braden and Norton Scales are proven tools that can be used to provide an electronic data for predicting the risk of pressure ulcer risk in MICU. According to Ayello, Capitulo, Fife, Fowler, Krasner, Mulder, Sibbald, and Yankowsky (2009), these tools help clinicians to determine the risk values, which eventually can lead to the formulation of the most appropriate and opportune medical interventions. Norton Scale The Norton Scale comprises five groups: physica l and mental conditions; mobility, activity, and incontinence. These factors are valued from 1– 4 (Tavenner, & Sebelius, 2012). The total values usually range from 5 to 20. An entry of the following data to the EHR system can help clinicians to cope with the condition in a more effective and faster way: Mild Risk values at 14: Moderate Risk at 13: and High Risk at 12. The scale should be credible and kept in such condition to avoid errors in the final readings of data (Liang, 2007). Any alterations can change or render it an

Monday, October 28, 2019

Mardi Gra Social Impact Study Essay Example for Free

Mardi Gra Social Impact Study Essay Sydney has always been the destination of lesbian and gay tourists around the world to view this great spectacle at the South Pacific’s gay and lesbian capital. The Australian gay and lesbian tourism industry has always been on the go whenever the event comes into full view. The street parades and costume parties have always attracted tourists when compared to other events and affairs. Because of this, Sydney, the gay capital of the world, has changed from â€Å"an industrial port to a cosmopolitan, global capital increasingly dependent, for the last two to three decades, on an economy driven by consumption and leisure† (Markwell, 2002, p. 82). Therefore, it is evident that the Mardi Gra contributes solely on Australia’s tourism economy, as reflected in the paper that Kevin Markwell (2002) wrote. There are tensions and demands that leak from the Mardi Gras of Sydney, and the economic impacts of big events such as this cannot be completely ignored. Mardi Gras of Australia Localization as well as globalization can create a big impact on international events and issues that surround the nations. What Markwell (2002) has called localization-globalization dynamic refers to†¦ [T]he way in which a local, community event has challenged and overturned social mores and legislation at the state and national levels partly through its elevation to a national and international event. (Markwell, 2002, p. 83) This has an impact on the tourism industry, as it evades traditional mechanisms and instead, focuses more on the trend and movement of a certain population, creating an ever-increasing power while affecting government intervention and legislation. The tensions and demands of the Mardi Gras The first Sydney Gay and Lesbian Mardi Gra parade happened on the 24th of June 1978 (Markwell, 2002, p. 83). However, what was supposed to be an enjoyable event became one that was close to disaster, as the celebration turned out to be a riot â€Å"with fifty-three people arrested and several alleging vicious assaults by police† (Markwell, 2002, p. 83). There was this tension of distinguishing what exactly was the purpose of that event, especially that there were records on concealed systematic oppression, homophobia, as well as discrimination (Markwell, 2002, p. 83). As of last year, there were approximately 10,000 people who joined the Mardi Gra of Sydney, marking the event as the biggest Mardi Gra event ever to be held in Australia (Organizers say, 2008, p. 1). According to AAP General News Wire, â€Å"Crowds of up to 300,000 people are expected to line the central city route to watch the procession of themed floats, drag queens and many more costumed and flesh-revealing revelers† (Organizers say, 2008, p. 1). To avoid unwanted riots and insurgencies, 80 military personnel and defense force employees marched among the crowds. As stated, â€Å"Those charged will face a range of offenses including affray, assault police, possessing prohibited drugs, assault, and resisting arrest† (Mother Nature, 2007, p. 1). The demand of cleaning human debris is another demand, in addition to the demand of controlling 4,000 gays and lesbians in the event that triggered an economic relief of about $500,000 in the local economy (Bathersby, 2008, p. 1). The economic impact of Mardi Gras In the economy of New Orleans, there is a report that the chosen event can generate more than $1 billion in annual spending, benefiting the economy and the tourism industry of the state (Mardi Gras questions and answers, 2009, p. 1). Noosa, on the other hand, will have poured about $500,000 last year as stated above (Bathersby, 2008, p. 1). By March 2009, they earned about $300,000, as stated in the report (Lander, 2009, p. 1). It is therefore, apparent that this year is approximately 60% less the earned revenue of last year. Nevertheless, it still is helpful to the economy, earning in New South Wales an amount of about $100,000 million each year in the area of tourism (Santow, 2002, p. 1). Each state or nation earns different amounts each year, depending on the state of tourism of that state or nation. According to Simon Santow (2002) however, [T]he Mardi Gras is suffering from a combination of increased costs and falling revenue, at a time when, ironically, there’s been no significant drop in public interest. Unless half a million dollars is found, the organization could place itself in voluntary administration, so the call has gone out for some emergency funding from the state and federal governments [of Sydney]. (Santow, 2002, p. 1) The government issues the permits in parades such as these, but there are economic impacts on big events, such as the Mardi Gras events. Focusing on the economic impact of big events In a paper that Larry Dwyer, Robert Mellor, Nina Mistilis, and Trevor Mules (2000) wrote, they stated that, as the state government receives requests in funding special events and conventions (such as the Mardi Gra), the government focuses mainly on the alleged positive impacts of these events, especially the overall economic impact. There is a framework developed by the state of New South Wales in Australia used to estimate the economic impacts of events and conventions. This is done by using â€Å"accurate and uniform set of events or conventions expenditure as input into the forecasting model† (Dwyer, Mellor, Mistilis, Mules, 2000, pp. 191-192). Forecasting event-related expenditure is done by the following these steps: first is to estimate the number of inscope visitors; second is to estimate the inscope expenditure of visitors; third is to estimate inscope expenditure of organizers, participants, teams, and media; fourth is to estimate total event related inscope expenditure; fifth is to apply multipliers to estimate economic impacts; sixth is to estimate media impacts; seventh is to estimate fiscal impacts; eighth and final is the recognition of intangible costs and benefits (Dwyer et al. , 2000, pp. 192-194).Mardi Gra is a big event, and it covers some impacts on the economy and the society, as it affects the lives of people there and abroad. References Bathersby, D. (2008, March 2). Noosa set for pink invasion. Retrieved April 9, 2009, from The Daily database: http://www. thedaily. com. au/news/2008/mar/02/noosa-set-pink-invasion/. Brown, A. L. (2009, February 27). Mardi Gras boost. Retrieved April 9, 2009, from The Daily database: http://www. thedaily. com.au/news/2009/feb/27/mardi-gras-revellers-coast-boost/. Dwyer, L. , Mellor, R. , Mistilis, N. , Mules, T. (2000). Forecasting the economic impacts of events and conventions. Event Management, 6, 191-204. Lander, A. (2009, March 9). Mardi Gras recovery on the coast. Retrieved April 9, 2009, from The Daily database: http://www. thedaily. com. au/news/2009/mar/09/mardi-gras-recovery-coast/. Mardi Gras questions and answers. (2009). Retrieved April 9, 2009, from the Compucast Interactive database: http://www.mardigrasneworleans. com/faq. html. Markwell, K. (2002). Mardi Gras tourism and the construction of Sydney as an international gay and lesbian city. GLQ, 8, 1, 81-99. Mother Nature to star Sydney gay parade. (2007, day). NSW, p. 1. Organizers say Mardi Gras will be biggest ever. (2008, day). NSW, p. 1. Santow, S. (2002, August 1). Mardi Gras in danger. Retrieved April 9, 2009, from The World Today Archive of the ABC database: http://www. abc. net. au/worldtoday/stories/s637685. htm.

Saturday, October 26, 2019

Characteristics of Tilapia Fish

Characteristics of Tilapia Fish Tilapia is generic name of an African cichlids endemic group. This group is composed of three aquaculture important kind of Oreochromis, Sarotherodon and Tilapia. Various characteristics differentiate these three genera, but the main critical concerns to reproductive conduct. All species of tilapia are nesting in builders; a brood parent guards the fertilized eggs in the nest. Both species of Sarotherodon and Oreochromis are mouthing incubators; eggs gets fertilized in the nest but the parents instantly pick up those eggs in mouths and keep them through brooding and for many days after hatching. Brooding in mouth is found only in Oreochromis species, while in case of Sarotherodon either male or both female and male are holding brooders (SRAC, 2005). During the last half of 20th century fish farmers all over the tropical and semi-tropical world have commenced farming tilapia (FAO, 2000). Today, commercial production of important tilapia goes to genus Oreochromis beyond Africa, and more than 90 percent of the farmed tilapia are Nile tilapia outside of Africa. (Balarin and Haller, 1982) reported that Nile tilapia is the most popular tilapia species for aquaculture and is widely distributed in many countries other than native Africa. Adaptability: Oreochromis niloticus is a quickly growing species which can live in various types of waters. It is extremely adaptable and can use a wide range of various food sources (along with plants), but feeds mainly on phytoplankton along with benthic algae. Even though Nile tilapia is assumed as a freshwater species it has shown a great margin towards salt and can survive in briny situations (Beveridge et. al., 2000). Stickney et al., (1979) reported that Nile tilapia can tolerate to a wide range of environmental conditions, fast growth rate, efficient to convert organic matter into high quality protein and have a favorable taste. Feeding Habits: Tilapia has broad variety food organisms that are natural, along with plankton, some aquatic benthic invertibrates, macrophyte, plank tonic and benthic larval fish, breaking up organic matter, and detritus. With heavy auxiliary feeding, natural food beings typically account for 30 to 50 percent of growth of tilapia. Tilapia is often referred as filter feeders as they can efficiently reap water plankton. The gills of tilapia release a mucous which traps plankton. Then mucous rich with plankton or bolus, is swallowed (EL-Sayed A.F.M., 2006). Tilapia is an omnivore; means feeds on both plants and animals food sources. However, feeding behavior depends with size and age. Larvae usually feed on phytoplankton (algae), fingerlings feed on zooplankton (artemia, moina, and rotifer), and while adults consume both plants and animal food sources near the surface because are floating feeders. In this regard, Caulton 1976; Saha and Dewan 1979; Brummett 1995; Turker et al. 2003 bumped that little tilapia filtered substantially more phytoplankton regarding than larger ones. In addition, Azim et al. (2003) looked into consequence of periphyton quantity and size of fish (7 and 24 g) on ingestion rate by Nile tilapia, and they observed that ingestion rate between small fish significantly increased with density of periphyton, but not for fish with medium size. Protein Requirements: Including Tilapia Proteins are important nutrients for all living organisms for their structure and function. Continual use of protein is being used for maintenance, growth and reproduction. Therefore, continuous supply of proteins or their component amino acids are necessary. Many studies indicated that fish does not have true protein necessity, but instead needs a well equilibrized mixture of dispensable and indispensable amino acids. Insufficient intake of protein will result in retardation of growth due to withdraw of protein from fewer vital tissues to maintain the function of critical parts. Too much supply of protein, however, only part will be used to synthesize new tissues and remainder will be converted to energy (NRC, 1983). Many findings have been carried out about the optimum dietary protein level for tilapia. This level for tilapia appears to be influenced by size or age of the fish and ranges from 28% to 50%. For fry dietary protein levels ranging from 36 to 50% have been shown to produce best level growth (Davis and Stickney, 1978; Santiago and Laron, 1991; El-Sayed and Teshima, 1992). That for juvenile 29 to 40% has been determined to produce optimum growth (Cruz and Laudencia, 1977; Teshima et al., 1978); for young adult fish up to 40g 27.5 to 35% appears to be maximum (Jauncey and Ross, 1982; Siddiqui et al., 1988; Wee and Tuan, 1988; Twibell and Brown, 1998). Practical diets for grow out of tilapia usually contain 25 to 35% crude protein. In ponds, however, fish may have access to natural food that is rich in protein, thus dietary protein levels as low as 20 to 25% have been estimated to be adequate (Newman et al., 1979; Lovell, 1980; Wannigama et al., 1985). Proteins are made up of amino acids. Arginine, histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan and valine are the amino acids have been shown to be necessity for fish (Moyle and Cech 1982). The main problem is that quantity for each type required differs from species, and excessive quantity might be damaging a fishs health (Moyle and Cech 1982). Scoliosis (curvature of the spine) can result due to lack of amino acids in fish (Moyle and Cech 1982). Proteins are vital in the fish growth. Research has shown that due to certain proteins lack, growth will be scrawny. In the nature, omnivorous fish generally feed on ample alive organisms, protein enriched, that provide a valuable energy source (Moyle and Cech 1982). However, many commercial foods lack ample protein as it is expensive. Fish use large amount of energy to crush large and complex proteins. Due to this, carbohydrates and lipids are replaced as energy sources (Moyle and Cech 1982). Lipid requirement: On other hand, lipids are found in tissues of both animal and plant and are digestible completely (Moyle and Cech 1982). Symbiotic bacteria are present in guts of many herbivorous fish that helps to digest the carbohydrates and liberate its energy to fish. Lipids supply higher energy than do carbohydrates, and also render fatty acids, that are used for the energy construction reserves in fish. Predaceous fish normally have a maximum growth rate due to their diet of live fish, which are naturally high in lipids (Moyle and Cech 1982). Dietary lipids are the main source of essential fatty acids needed by fish for normal growth and development. They are vital carriers and assist in absorption of vitamins with fat-soluble. Lipids, especially phospholipids, are important for cellular structure and maintenance of membrane flexibility and permeability. Lipids serves as precursors of steroid hormones and prostaglandins, improve the flavor of diets and affect the diet texture and fatty acids composition of fish (Webster I. et al., 2002). Takeuchi et al. (1983) reported that essential fatty acid requirement of Nile tilapia was found to be 0.5% linoleic acid (18:2à Ã… ½6). Complete diets and Feeding Levels: Complete diets are important in semi intensive culture systems of Nile tilapia, for a provision of all essential nutrients to the fish. In order to develop such diets it is also necessary to know the specific nutrient requirements of the animal and optimize feed formulation in order to obtain fast growth of high quality fish at low costs, (Moore, 1985). Nutrient requirement of supplementary feed for Nile tilapia: Many studies have been done to find out the suitable optimum nutrient level for tilapia. Fineman and Camacho (1991) observed that 30% protein with 3500 kcal was better than 30% protein with 3000 kcal for supplementary feed for Oreochromis niloticus in brackish water ponds. Watanabe et al. (1990) found that final mean weight were high in 28% protein to 32% protein under all densities. Hanley (1990) found that increasing dietary lipid has no significant effect on growth rate, feed conversion ratio and protein gain. De Silva and Perera (1985) and Siddiqui et al.(1988) cited by Zonnveld and Fadholi (1991) found that optimum protein levels for fry and young Nile tilapia reared at maximum growth should be 28-30% respectively. Water Quality Requirements: Nile tilapia would grow well in water with a temperature range of 20-35 °c and optimum between 28 ° and 30 °C and productivity can be assumed at a maximum within this temperature range (Ballarin and Haller, 1982). Tilapia cannot survive at a temperature below 10 °c for more than few days. When it exposed to cold water, disease resistance is impaired and death may result in only few days (Lovell, 1989) The tolerance level of DO for Nile tilapia is as lower as 0.1 mg/L (Magid and Babiker, 1975). Chevrvinski (1982) reported that O. niloticus could survive by using atmospheric oxygen when dawn DO concentration drops to less than 1 mg/L. Colt (1987) demonstrated that Nile tilapia growth reduces as DO level reaches below 5mg/L.. However, its survival depends on the duration of low dissolved oxygen in the culture system. In tanks, fish survive at the oxygen level of 1.2 mg/L by gulping oxygen from the atmosphere for up to 36 hours if other water quality parameters remain at an optimum level (Balarin and Haller, 1982). Nile tilapia has a lethal pH limit at approximately 4 and 11 respectively and pH between 6.5 and 9 is the desirable range for fish culture (Swingle, 1969) Nile tilapia is more tolerant of high ammonia level than any other species of fish. The lethal ammonia level for tilapia is 2.3 mg NH3-N/L., but it was reported that by prolong exposure, it can tolerate levels of up to 3.4 mg/L (Stickney, 1985). A level of unionized ammonia above 0.5 mg/L frequency results in mortality when fish are further stressed by low oxygen, handling (Ballarin and Haller, 1982). Nile tilapia is not directly affected by alkalinity and tolerance level as high as 700 to 3,000 mg/L CaCo3 (Morgan, 1972). A total alkalinity range of 20 400mg/L is considered satisfactory for most aquaculture purpose (Tucker and Robinson, 1990 cited by Lawson, 1995). Phosphorous requirement The dietary requirement for phosphorus in tilapia varies from 0.9% (Watanabe et al., 1980), 0.45-0.6% (Viola and Arieli, 1983), 0.3-0.5% (Robinson et al 1984, Robinson et al., 1987) to 0.46% (Haylor et al., 1988) depending on species, fish size, food composition or expression of a reported requirement, available or final dietetic phosphorus. The diet containing the complete mineral premix contained 0.9% total phosphorus, whereas the unbalanced calcium and phosphorus diet contained 0.5% overall phosphorus. Although fish could partly absorb phosphorus from its environment (Lall, 1979, Lall, 1989, Lall, 19911, dissolved phosphorus is usually at very low levels of about 0.005-0.05 Mg/L, which is inadequate to meet their requirement (Nose and Arai, 1979 cited in Lall, 1991). Hepher (1954) (as cited in Hepher and Sandbank, 1984) noted that even in fish ponds fertilized with phosphates, the level of phosphorus does not increase much above its normal low level due to absorption to soil colloid and precipitation as insoluble compounds. Phosphorus is a component of phosphoproteins, nucleic acids and phospholipids, which play important roles in energy metabolism. Addition of dietary phosphorus has been reported to decrease the lipid content of muscle and viscera, whereas muscle protein content increased (Murakami, 1970 cited in Lall, 1979; Takeuchi and Nakazoe, 1981 cited in Viola et al., 1986; Shu, 1987; Hung, 1989; Wee and Shu, 1989). Calcium requirement The requirement for calcium in tilapia reared in calcium-free water was found to be 0.65% for 0. areus (Robinson et al., 1984, Robinson et al., 1987). In the calcium and phosphorus uncomplemented diet, the calcium level was about 1%. At this level, even without supplementation, it appears that the calcium level in the soybean-based diet would be sufficient to meet the requirement. The availability of dietary calcium to fish has not been studied. Furthermore, under normal conditions, one cannot demonstrate a calcium requirement in fish (Cowey and Sargent, 1979; Robinson et al., 1984, Robinson et al., 1987; Yarzhombed and Bekina, 1987) because of calcium uptake from the water (Dabrowska et al., 1989; Luquet, 1991). In Nile tilapia, calcium uptake takes place in the skin, particularly by the opercular membrane (McCormick et al., 1992). In contrast to phosphorus, it seemed, therefore, that the calcium requirement could be met from the rearing water. Activities such as liming of ponds are likely sources of calcium. The similarity of calcium levels in the final carcass of fish fed the calcium supplemented, calcium non-supplemented diets and the non-fed fish further support the likeliness of calcium uptake. The calcium is a must in the fish diet for balancing the calcium and phosphorus ratio. Maintaining an optimum Calcium and Phosphorus ratio is important in diets for red sea bream, eels, and brook trout but not for catfish, carp, and rainbow trout (NRC, 1973, NRC, 1983; Ogino and Takeda, 1976; Viola et al., 1986; Hepher, 1988; Lall, 1991). In tilapia, the role of the Ca: P ratio is not well defined and merits further study (Robinson et al. 1987). However, noted that in freshwater fish, dietary Ca: P ratio does not generally impair growth or tissue concentration as long as dietetic phosphorus is adequate and calcium is present in the rearing water. Feeding standards of supplementary feed for Nile tilapia This is a set of tables, which include the quantity of each dietary component required for each age and species of fish for different levels of production and maintenance. When complemented by tables of feeds composition, then it is possible to formulate accurate rations for individual or fish groups, an essential process for a least-cost ration feeding program operation. Marek (1975) composed a feeding chart of common carp and tilapia. The chart was having estimation of natural food in the pond and subtracted from the calculated feed requirements for maintenance and expected growth. The charts are based on the weight of fish, and changes are adjusted according to the daily growth of fish. In most cases, therefore ration is fixed for a longer period of time (Hepher, 1982). Feeding rate of Nile tilapia Underfeeding of fish can result in production loss. Overfeeding will cause a costly feed wastage and a potential cause of water pollution in addition, a condition ensuing loss of animals or needing expensive corrective measures. Hence, both overfeeding as well as under-feeding has serious economic effects that affect the farm viability. Bard et al (1976) stated that most of the supplemented feed is not fully eaten by fish; some drop to the bottom of the water contributes to development of phytoplankton, hence promoting growth of fish both direct and indirect way. Sometimes a vague instruction might be read, like feed 5% of biomass per day as a dry feed. This might be applied during whole growing cycle. This would most likely result in near famishment in the early stages and gross excessive feeding and later water quality problems. Feeding rates must not be steady throughout the whole of the growth cycle till table size. They must be changed according to the fish age and its size to conditions of water. Brown et al (1979) demonstrated that it is uneconomical to balance diets fed to fish in ponds according to the absolute nutrient requirement of the fish. Stocking density and size Feeding level of fish in the semi intensifier system increases with the increase of density of fish. As t density of fish in the semi intensive culture increases per unit area, the food requirement of fish also increases. This increase of biomass does not relate with the increase of raw food and in many cases is associated with a decrease in the production of food from nature due to limited supply to the overgrowing biomass stated (1979) that when the biomass of fish increased, each fish gets a smaller amount of natural food, which may not meet its nutrition requirement. This deficit can be covered by supplementary feed. Natural Food in a semi intensive culture Algae or phytoplankton is an microscopic weeds form the base of the fish food chain. Adequate temperature, sunlight, and nutrients are basic for all green plants needed for growth. In presence of the sufficient light and proper temperature, chemical fertilizers (nitrogen, phosphorous and potassium) nutrients are readily assimilated by phytoplankton and increasing their abundance. Manure comprises the same nutrients, is released and present to phytoplankton during and after decomposition. As phytoplankton absorbs fertilizer nutrients and reproduces to create dense communities pond water changes to brownish or greenish color. This is known as phytoplankton bloom. There are three basic feeding pathways by which input of fertilizer in the pond provides nutrition for fish: Direct consumption of organic matter by fish Autotrophic productivity of algae pursuant to fertilization and their consumption by filter feeding fish. Heterotrophic productivity of micro organisms and benthic micro organisms from manure inputs and their successive consumption by fish. These three basic feeding pathways can operate in a single aquaculture system, even though their relative importance still a subject of intense debate Colman and Edwards, (1987). In Israel experimental work reported that the heterotrophic pathway of organic manure was found to be more efficient than an autotrophic pathway, Schroeder (1980). It was stated that low fish production by an autotrophic food chain was due to the sunlight limitations of phytoplankton with filter feeding fish mainly depend on heterotrophic organisms that are not light dependent. Therefore, the autotrophic food chain is required to provide the necessary DO which limit to the heterotrophic feed chain Colman and Edwards, (1987). The fertilized ponds with nutrients stimulate the microscopic plants growth in the water (phytoplankton). Phytoplankton is food for other water creatures (zooplankton and larger animals) that fish eat. Water becomes turbid or greenish color (called a bloom) Martin et al (1999) because of abundant growth of microscopic plants. Evaluation of the nutritional value of natural food is a difficult because each fish species has its own nutrition requirement from its diet Determination of biomass of phytoplankton, zooplankton and benthos in the fish pond must be related to the food requirement of fishes. Until now, there is not a reliable method developed for determination of secondary production, although primary production can be estimated. Spataru et al (1979) reported that supplementary feed can replace some of the natural food. Aquino and Neilso (1982) supported that Oreochromis niloticus grow well in cages on food. The primary producers which are sourcing of food to different type of fish are not digested equally by fish. Blue green algae Anabaena, Microcystis, Oscillator was reported to be indigestible because they have copious moulage, cellulose wall, or firm periblast, (Zhang, 1989). Recent research work in China indicated that Tilapia can digest green-algae (Zhang, 1989). Mellamena, (1990) reported that algae contain protein, fat, Carbohydrates varies 22% to 48%, 2% to 16%, and 14% to 24% respectively. Zooplankton has more protein and fat content than any other phytoplankton except one gabber. Diatoms which have the more silicious cell wall contain higher quantities of inorganic matter. Tamiya, (1975) found that the average protein content of algae is about 50% on a dry matter basis. The biological value of algae is about 81.5% meaning that 124gram of algal protein corresponds to 100 grams of egg protein. The amino acid composition of algae is similar to that of FAO reference protein except, there is a slight deficiency in cystine and methionine. Lipids found in phytoplankton are typical ester of glycerol and fatty acids having a carbon number from C14 to C20. The major acids in diatoms are palmitic (16:0), hexadecanoic (16:1), Becker (1989). Blue green algae have a larger amount of polyunsaturated fats (25% to 68%) oftotaltriglyceride up to 80% of the totalalgae lipids. Lipid content of Cyanobacteria and green algaein outdoor mass culture is 7% to 15% lipids (Becker, 1989). (Nostocsp., Calothrex sp., Oscallaria and Spirulina sp., Urenima sp.) and 20% to 25% lipids in green algae (Scenedesmus),to 10% in dry weight. All plankton feeders fish reported to digest diatoms such as Silver carp and tilapia (Power, 1960, 1966). Tilapia zillii in Israel revealed that it had a capacity to disintegrate after gelatinous matrix colonies of blue green algae, especially Microcystis (Spataru, 1978).

Thursday, October 24, 2019

What Really Is A Hacker? :: essays research papers

What Really is a Hacker? There is a common misconception among the general public about what constitutes a hacker and what hacking is. Hacking is defined as "gaining illegal entry into a computer system, with the intent to alter, steal, or destroy data." The validity of this definition is still being debated, but most individuals would describe hacking as gaining access to information which should be free to all. Hackers generally follow some basic principles, and hold these principles as the "ethical code." There are also a few basic "Hacker rules" that are usually viewed by all in this unique group. The principles that hackers abide by are characteristic of most people who consider the themselves to be a hacker. The first, which is universally agreed upon is that access to computers should be free and unlimited. This is not meant to be a invasion of privacy issue, but rather free use of all computers and what they have to offer. They also believe that anyone should be able to use all of a computers resource with no restrictions as to what may be accessed or viewed. This belief is controversial, it not only could infringe upon people's right to privacy, but give up trade secrets as well. A deep mistrust of authority, some hackers consider authority to be a constriction force. Not all hackers believe in this ethic, but generally authority represents something that would keep people from being able to have full access and/or free information. Along with the "ethical code" of hackers there are a few basic "hacking rules" that are followed, sometimes even more closely then there own code. Keep a low profile, no one ever suspects the quite guy in the corner. If suspected, keep a lower profile. If accused, simply ignore. If caught, plead the 5th. Hackers consider a computer to be a tool and to limit its accessibility is

Wednesday, October 23, 2019

Decoding the Jargon Essay

Create a booklet which explain the function of hardware components and identify communication between components. The pages should include photographs and diagrams to illustrate the information you include. (P1) Components communication The following diagram shows how components communicate each other’s. CPU Also known as the processor, the CPU is the heart of the computer and has two part: Control Unit The control unit controls the flow of data through the processor. Arithmetic/Logic unit (ALU) The ALU performs mathematical, logical, and decision operations in a computer and is the final processing performed by the processor. RAM A computer can only run a program when it is in memory named RAM (Random Access Memory). List of RAM such as: Double data rate synchronous dynamic random access memory (DDR SDRAM), Static Random access memory (SRAM) and Dynamic random access memory (DRAM). Hard drive A HHD is a data storage device that provides storage and retrieving digital information. Serial Storage Architecture (SSA) is a serial transport protocol used to attach disk drives to server computers. A solid-state drive (SSD) it contains no actual â€Å"disk†, it is a data storage device using integrated circuit assemblies as memory to store data. It is more quiet when it runs, more resistant to physical shock, has a lower access time and less latency. Motherboard The motherboard is the main circuit board inside a computer. A number of major hardware components are plugged into it, including the CPU, hard  drive, the BIOS memory and RAM. The most commonly found and used motherboard is ATX motherboard. It is the standard motherboard which suit to any desktop computer. Fan A computer fan is any fan inside, or attached to, a computer case used for active cooling, and may refer to fans that draw cooler air into the case from the outside, expel warm air from inside, or move air across a heat sink to cool a particular component. CPU fan: Use to cool the CPU heat sink. Graphic card Fan: The specific fan to cool down the temperature of graphic card. PSU fan: The power supply unit fan play two rules that cool down the itself and removing the warm air from the case. PSU A power supply unit converts mains AC to low-voltage regulated DC power for internal components of computer. DVD DVD is digital optical disc that can store a large amount of digital data such as text, music, image or video. b. Add a new section to the booklet to explain the purpose of TWO different Operating Systems and compare the features functions of these operating systems. (P2, M1) Window 8 is the latest vision of the Windows operating system, which was developed by Microsoft. It acts as an interface between the hardware and the user. Purpose of Windows 8 The operating system was made for personal, home or business user in the desktop, laptop, tablet and smartphone market. It makes computer easy for users to control. 1. Graphical User interface The windows operating system designed originally to replace MS-DOS, which make the computer interface more user-friendly and allows you to use your mouse to operate. Windows 8 come with a new and unique kind of use interface (UI) called Metro. 2. Accessibility. Windows 8 increase the accessibility which includes features to enable disable people to use the computer more easily, such as: Optimize visual display to allow people to see more cleanly on screen, turn on audio description for people who are blind, adjust the setting of mouse for people are using different hand. 3. Multitasking Windows 8 provided people with the ability to do multitask more easily and steady. The Graphical User Interface makes easier to navigate from different tasks. 4. A Standard Part of windows’ purpose is to create a standard for third-part software developers. All windows programs will feature in a standard format, such as the position of menu options, the way programme opened and closed down. Purpose of DOS DOS known as Disk operating system that allow people to manage the storage devices such as hard disk, solid disk, flash disk or floppy disk. DOS is the basic system that people have to using Command line prompt to communicate with computer via simple interface which is not â€Å"friendly† user interface. The DOS can’t run multitask on computer which can only load one program until it finished. But some of the features still quite useful that people still use it. Such as: 5. CHKDSK 6. GBUPDATE 7. IPCONFIG 8. PING 9. FDISK Comparison of two operating systems We can see there are many different between those two computer operating system which the Windows 8 operating system have a lots of advance features and higher performance that suit to nowadays. The DOS system usually used to be run a specific program which prevents any virus or hacker attack in the solo computer such as sale program, data base in the hospital or council data base. c. In your document explain the purpose of different software utilities which is available. Explain how software utilities can improve the performance of computer systems (P3, D1) Windows 8 Utility Virus Protection The specific program used to prevent viruses, worms and Trojans which attached in the email or website. Every computer need to install an anti-virus software and have upgrade its regular that make sure the computer more securer. Firewall The Firewall is the software that build up to prevent attack from hacker which build a protective barrier in your computer when your computer connect to the network. It controlled which software’s data can thought the network and monitored the data thought the computer. Clean-up Tools The system utility that clean up system’s rubbish to make computer running more steady and smoothly. The list of clean-up content such as: Removal of cookies Internet history Defragmentation Drive formatting Drive formatting that means to delete everything on the drive or partition to install operating system or classify your partition. You can do it from Disk management or using Formatting Command in Command prompt just like type command in the DOS OS. Utility of DOS CHKDSK Checks a disk and repair your data that might lose or corrupt from take off your disk incorrectly or your computer lost electricity when it was running. The CHKDSK help computer more secure and repair the corruption when it detects. Ping is a computer network utility that to test how quickly the host to connect to the server. This utility could help user easier to check the connectivity with network. FDISK is utility software which using on DOS to partitioning disk and manage the partition. The FDISK that formatting your disk completely that not be able to recovery and it the common tool that used in 1990s during now. Scandisk is the command to run disk-repair on the current drive. DEFRAG is Command to reorganizes files on disks to optimize performance. DEBUG is command to run Debug, a program testing and editing tool.

Tuesday, October 22, 2019

Laws Regulating Federal Lobbyists

Laws Regulating Federal Lobbyists In public opinion polls, lobbyists rank somewhere between pond scum and nuclear waste. In every election, politicians vow never to be â€Å"bought out† by lobbyists, but often do. Briefly, lobbyists get paid by businesses or special interest groups to win the votes and support of members of the U.S. Congress and state legislatures.   Indeed, to many people, lobbyists and what they do represent the main cause of corruption in federal government. But while lobbyists and their influence in Congress sometimes seem to be out of control, they really do have to follow laws. In fact, lots of them.   Background: The Laws of Lobbying While each state legislature has created its own set of laws regulating lobbyists, there are two specific federal laws regulating the actions of lobbyists targeting the U.S. Congress.   Recognizing the need to make the lobbying process more transparent and accountable to the American people, Congress enacted the Lobbying Disclosure Act (LDA) of 1995. Under this law, all lobbyists dealing with the U.S. Congress are required to register with both the Clerk of the House of Representatives and the Secretary of the Senate. Within 45 days of becoming employed or retained to lobby on behalf of a new client, the lobbyist must register his or her agreement with that client with the Secretary of the Senate and the Clerk of the House. As of 2015, more than 16,000 federal lobbyists were registered under the LDA. However, merely registering with Congress was not enough to prevent some lobbyists from abusing the system to the point of triggering total disgust for their profession. Jack Abramoff Lobbying Scandal Spurred New, Tougher Law Public hatred for lobbyists and lobbying reached its peak in 2006 when Jack Abramoff, working as a lobbyist for the rapidly growing Indian casino industry, pleaded guilty to charges of bribing members of Congress, some of whom also ended up in prison as a result of the scandal. In the aftermath of the Abramoff scandal, Congress in 2007 passed the Honest Leadership and Open Government Act (HLOGA) fundamentally changing the ways in which lobbyists were allowed to interact with members of Congress. As a result of HLOGA, lobbyists are prohibited from â€Å"treating† Congress members or their staff to things like meals, travel, or entertainment events. Under HLOGA, lobbyists must file Lobbying Disclosure (LD) reports during each year revealing all contributions they made to campaign events for members of Congress or other expenditures of efforts they make that might in any way personally benefit a member of Congress. Specifically, the required reports are: The LD-2 report showing all lobbying activities for each organization they are registered to represent must be filed quarterly; andThe LD-203 report disclosing certain political â€Å"contributions† to politicians must be filed twice a year. What Can Lobbyists ‘Contribute’ to Politicians? Lobbyists are allowed to contribute money to federal politicians under the same campaign contribution limits placed on individuals. During the current (2016) federal election cycle, lobbyists cannot give more than $2,700 to any candidate and $5,000 to any Political Action Committees (PAC) in each election. Of course, the most coveted â€Å"contributions† lobbyists make to politicians are the money and votes of the members of the industries and organizations they work for. In 2015 for example, the nearly 5 million members of the National Rifle Association gave a combined $3.6 million to federal politicians opposed to tighter gun control policy. In addition, lobbyist must file quarterly reports listing their clients, the fees they received from each client and the issues on which they lobbied for each client. Lobbyists who fail to comply with these laws face could face both civil and criminal penalties as determined by the Office of the U.S. Attorney. Penalties for Violation of the Lobbying Laws The Secretary of the Senate and the Clerk of the House, along with U.S. Attorney’s Office (USAO) are responsible for ensuring that lobbyists comply with the LDA activity disclosure law. Should they detect a failure to comply, the Secretary of the Senate or the Clerk of the House notifies the lobbyist in writing. Should the lobbyist fail to provide an adequate response, the Secretary of the Senate or the Clerk of the House refers the case to the USAO. The USAO researches these referrals and sends additional noncompliance notices to the lobbyist, requesting that they file reports or terminate their registration. If USAO does not receive a response after 60 days, it decides whether to pursue a civil or criminal case against the lobbyist. A civil judgment could lead to penalties up to $200,000 for each violation, while a criminal conviction - usually pursued when a lobbyist’s noncompliance is found to be knowing and corrupt- could lead to a maximum of 5 years in prison. So yes, there are laws for lobbyists, but how many of those lobbyists are really doing the â€Å"right thing† by complying with the disclosure laws? GAO Reports on Lobbyists’ Compliance with the Law In an audit released on March 24, 2016, the Government Accountability Office (GAO) reported that during 2015, â€Å"most† registered federal lobbyists did file disclosure reports that included key data required by the Lobbying Disclosure Act of 1995 (LDA). According to the GAO’s audit, 88% of lobbyists properly filed initial LD-2 reports as required by the LDA. Of those properly filed reports, 93% included adequate documentation on income and expenses. About 85% of lobbyists properly filed their required year-end LD-203 reports disclosing campaign contributions. During 2015, federal lobbyists filed 45,565 LD-2 disclosure reports with $5,000 or more in lobbying activity, and 29,189 LD-203 reports of federal political campaign contributions. The GAO did find that, as in years past, some lobbyists continued to properly disclose payments for certain â€Å"covered positions,† as paid congressional internships or certain executive agency positions provided as part of the lobbyists’ â€Å"contributions† to lawmakers. GAO’s audit estimated that about 21% of all LD-2 reports filed by lobbyists in 2015 failed to disclose payments for at least one such covered position, despite the fact that most lobbyists told the GAO that they found the rules regarding reporting covered positions as being â€Å"very easy† or   Ã¢â‚¬Å"somewhat easy† to understand.

Monday, October 21, 2019

Running Head Organizational Behavior Case Study

Running Head Organizational Behavior Case Study Introduction Organizational behavior is a broad and interdisciplinary area in management, which relies on the research and ideas of many other disciplines which explain human interaction and behavior.Advertising We will write a custom research paper sample on Running Head: Organizational Behavior Case Study specifically for you for only $16.05 $11/page Learn More Such disciplines include psychology, sociology, industrial psychology, social psychology, anthropology and communication (MacGinins, n.d). The focus of organizational behavior is the study of organizational; design, management and effectiveness (Martin, 2005). Organizational behavior therefore involves the interdependences and interrelationships of various topics like motivation, emotions, change process, culture, power and control, ethics, management and leadership, job design and technology, organizational structure, conflict and politics, stress in groups and individuals, learning, and communicat ion which involves decision making and negotiations. Managers must therefore understand the relationships between all these topics, and see how they can strike a balance, to ensure that there is a conducive environment for the progress and survival of the organization (Martin, 2005). In this assignment, I will explore organizational behavior by the use of the case study of RR Feeds, Inc., which is a large feed processing plant located in North Dakota. I will identify the challenges, conduct an in depth analysis and provide recommendations to the Management team. Discussion Challenges facing RR Feeds, Inc One challenge facing the organization is that of economic down turn, which brings in the problems of financial instability for the company because it makes less profit as the expenses remain constant. This made the organization lay off some of the employees and cut spending, so as to survive. The other challenge is that of change of employees’ attitude towards the organizatio n. The employees no longer feel obliged to commit themselves to the organization, and that is why they are ready to do as little as they can for the organization.Advertising Looking for research paper on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More The employees’ morale in working is greatly reduced due to lack of or poor motivation for them to dedicate their efforts to the organization. The management is faced with the challenge of enabling the organization to survive under the economic down turn, as they safeguard the welfare of the employees. This is a challenge of change management. In depth analysis The problems facing the organization can be attributed to change management. The organization has had a good history in its relationships with the employees and it’s clients for a long time. It usually gave bonuses to employees, and committed a lot of resources in various activities of the organ ization. The employees were very satisfied and they had a very positive attitude towards the organization. The levels of the employee commitment, motivation and morale were high before the economic down turn. With the onset of the economic down turn, which is a universal economic catastrophe, the organization was faced with the challenge of maintaining the status quo, in terms of giving bonuses to employees, and spending in organization activities. This made the employees change their attitudes and perceptions towards the management of the organization. The fact that some employees were laid off did not go down well with some employees, who sensed something fishy in the management of the organization. Their perception was that the laying off of some of them was aimed at victimizing them for their reduced morale in their work at the company. The key problem for the organization is how to effect and manage change within the organization, which is necessary for its survival. When chang e happens within an organization, each individual reacts differently whereby some embrace the change while others do not. †¦ However, the organization must survive despite the challenges. When the management started laying off some employees, cutting on spending and bonuses, it did so as a reaction to the external forces to the organization. The employees on the other side reacted to the change by reducing their commitment to the organization due to lowered motivation.Advertising We will write a custom research paper sample on Running Head: Organizational Behavior Case Study specifically for you for only $16.05 $11/page Learn More Recommendations to the Management Organizational change is always a challenge to many managers because they are faced with the challenge of maintaining the status quo for the organization in terms of employee satisfaction on one hand and retaining the organizational performance and output on the other. Mr. Nates idea of redes igning the jobs for the employees is one way of initiating the desired change to deal with the prevailing situation. This is because the jobs would be redesigned to enable one employee handle various tasks which were being handled by the laid off staff. However, the management will need to train the remaining staff on the extra fields or dockets, so that they may be able to discharge the duties effectively. The idea of reexamining the performance evaluation program and aligning it to the current organizational situation is aimed at bringing some changes in the manner in which employees are compensated for their labor. Chances are that the manager may come up with a contract performance system of working, in which employees are given some targets to meet, then get paid depending on how they meet those targets†¦.. This is different from the normal payment in which employees are paid after the end of each month without any targets set for them. The idea is good because it would en sure that the company divides its workload to the number of employees and attach some time frames under which those targets must be met, and then pay the employees depending on how they meet the targets. This can increase productivity and flexibility in the organization, because each employee will work hard to see that he or she meets the targets, so as to receive the payment. It would increase flexibility because each employee would set his or her own work plan, and develop a time table to accomplish the tasks. The employees may work hard to meet the set targets within a short time, so as to spare some time to engage in other income generating activities so as to supplement what they earn at the company (Martin, Fellenz, 2010). Regarding the stress levels and new employee behavior of low commitment to the company, the management should use Lewin’s three phases of change management namely unfreezing, transition and refreezing of behavior.Advertising Looking for research paper on business economics? Let's see if we can help you! Get your first paper with 15% OFF Learn More During the unfreezing stage, the management should prepare the employees for the change through talking to them about the prevailing economic situations and how it is affecting the company, and therefore the need for the company to adapt and align itself to the prevailing economic situation in order for it to survive and remain in business. The management should then use push and pull strategies to prepare the employees for the change, which is implemented during the transition phase. At the refreezing phase, the management should refreeze the newly acquired behavior in line with the new work environment. This would make the employees satisfied and restore their confidence, loyalty and commitment to the organization (Lewin, 2011). Conclusion Organizational behavior is a very crucial field in management which is very broad in nature. Managers need to understand organizational behavior in order for them to be able to be able to deal with the dynamic nature of organizational environmen t, which keeps at changing. Organizational behavior entails interaction between the organization and the employees. One major challenge for organizations is how to deal with change, like the one which faced RR Feeds, Inc due to the economic down turn. In such cases, managers should borrow Lewin’s three phase strategy of dealing with change namely unfreezing, transition and refreezing of behavior, so as to align the employees’ behavior with the prevailing organizational environment (Lewin, 2011). References Lewin, K.(2011). Lewin’s Freeze Phases. Web. MacGinins, S.K.(n.d). Organizational Behavior and Management Thinking. Web. Martin, J. (2005).3rd ed. Organizational Behavior and Management. Andover SP10 5BE: Cengage Learning EMEA. Martin,J., Fellenz, M.(2010).4th ed. Organizational Behavior Management. Andover SP10 5BE: Cengage Learning EMEA.