Wednesday, August 26, 2020

Financial advice to manage a portfolio of 1,000,000 Essay

Money related guidance to deal with an arrangement of 1,000,000 - Essay Example This would preclude any counsel that may include purchasing theoretical offers on the stock trade. I would recommend that the bearing we have to take for this situation is a preservationist approach, with the expectation of shield the capital contributed while simultaneously, if conceivable, making a little pay to enhance. The other region we have to hold up under as a top priority is that you may likewise need to have sensibly brisk access to the funding to either enhance the expenses of your stay here, or for some other inevitably that may manifest that can't be met from your current pay sources. What we would recommend in this case is that between 20 †25% of the assets ought to be put into a money circumstance, for example, a structure society, restricted term security with the capacity to pull back the assets moderately rapidly if important. This will pull in intrigue. The parity of the assets ought to be put into groups, however it is important to guarantee that these are what we call safe, as opposed to garbage bonds. Garbage securities are those given by associations that the market considers to be suspicious in nature. While the arrival is higher, so is the hazard. I need to make reference to here that all ventures which are connected somehow or another to organization stocks and offers, even the bonds suggested, can diminish in an incentive just as increment, despite the fact that bonds esteems truly don't differ as much as offers. Its must likewise be recalled that there could be a duty suggestion, surely on any premium earned, except if one has contributed through a TESSA or ISA. Likewise one needs to considered the chance of capital additions charge, which comes into power should the increase surpass a given sum. Single guardians have some one of a kind circumstances with regards to their venture portfolio. You have to make four arrangements. One would be for the future, your retirement. The subsequent arrangement is to give money

Saturday, August 22, 2020

Critical Theory Today - Critical Analysis Paper Research

Basic Theory Today - Critical Analysis - Research Paper Example Thus every individual has a distinction story to advise particularly in the event that we have a place with various gatherings. The motivation behind why bunch enrollment is imperative to Delgado is on the grounds that basically two sorts of gatherings exist, the In-Group and the Out-Group. The In-bunch is inexactly characterized as standard society however more critically, the in-bunch is the gathering in power and the gathering that manages everything. Therefore, the out-bunch is the gathering that is minimized from standard society just as the gathering that faces the brunt of social segregation and is frequently liable to examples of social authority and mistreatment (Crenshaw et al.). Delgado’s take a shot at the Homo-Narran was an enormous accomplishment for basic race scholar as well as postmodernist too. He characterized how people follow up on others. While postmodernist such a Foucault accepts, that we follow up on philosophies, Delgado characterized where belief sys tems create and subsequently how we deconstruct them (Crenshaw et al.). This kind of social separation is found in present day America today, as the media depicts the limits of the in-bunch through its romanticizing of â€Å"what is cool†. This implies people who do fit the rules of cool are minimized and pushed to the limits of the social circle. To sum up the primary ideas or Critical race hypothesis, there are three principle qualities. Initially, that prejudice is conventional, not aberrational (â€Å"normal science†), the typical way society works, the incessant, regular experience of a great many people of shading (Crenshaw et al.). Second, most would agree that our arrangement of white-over-shading authority fills significant needs, both mental and material. The main element, normality, implies that bigotry is hard to fix or review. Partially blind, or â€Å"formal†, originations of correspondence, communicated in decides that demand just on treatment tha t is the equivalent no matter how you look at it would thus be able to cure just the most outright types of segregation, for example, contract redlining or the refusal to enlist a dark Ph.D. as opposed to a white secondary school dropout (Crenshaw et al.). The subsequent element, now and then called â€Å"interest convergence† or â€Å"material determinism†, includes a further measurement. Since bigotry progresses the interests of both white elites and common laborers individuals, huge sections of society have minimal impetus to destroy it. Consider Derrick Bell’s recommendation that Brown v. Leading body of Education, thought about an extraordinary triumph of social liberties prosecution, may have come about additional from the personal responsibility of world class whites than a craving to help blacks (Crenshaw et al.). In conclusion, the third topic of basic race hypothesis, the â€Å"social construction† proposition, holds that race and races are resu lts of social idea and relations. Not objective, intrinsic, or fixed, they compare to no organic or hereditary reality; rather, races are classifications that society imagines, controls, or resigns when helpful. Individuals with regular starting points share certain physical characteristics,

Sunday, August 16, 2020

Cut the Coupons How to Save Money on Groceries Without Them

Cut the Coupons How to Save Money on Groceries Without Them Cut the Coupons: How to Save Money on Groceries Without Them Cut the Coupons: How to Save Money on Groceries Without ThemFeeding your family doesn’t have to cost an arm and a leg; here are money-saving tips to help keep your budget in the black.Grocery stores are colorful and distracting places, and unless you are someone who splurges on grocery delivery services, they are impossible to avoid.   Yet for some families, trips to the grocery store can cut into a large chunk of the monthly budget.If coupon cutting isn’t your thing, there are plenty of ways you can keep your family, pantry, and fridge full even without a file folder full of tiny slips of paper. Below are several savvy ways to cut down on your grocery expenses while still eating well.Shop smarter not harderKeeping a shopping list is your first step to making wise food buying choices. If you know exactly why you’re at the store as well as all of the items you must purchase, you’re less likely to buy things you don’t need. You are also less likely to forget the one most impo rtant ingredient or household item that would make you take an extra trip back to the store.Stay outside the perimeterHave you ever noticed that produce, dairy, and meat tend to plank the three main walls of a grocery store? The outer aisles that line the store tend to be where the most necessary goods are found. That layout strategy is there to get you to venture into the middle aisles, which houses less necessary and more processed foods. By making customers go into those aisles, the store is more likely to get impulse buys out of you. So if you’re sticking to a budget, stick to the main aisles and try to avoid deviating from the outside walls of the store.Explore your surroundingsAs you shop around for the best prices let your eyes wander. Eye-level products tend to be the most expensive. Take a look at the items on the upper or lower shelves, which are probably cheaper and the same quality as the eye-level ones.Julie R. Thomson at the Huffington Post offers similar solutions t o grocery shopping savings. She advises customers to avoid buying brand name products and overpriced toiletries to ensure maximum savings.“You might be used to a particular brand of cereal or sugar, but the generic options are usually cheaper,” Thomson says. “Generic brands often use name-brand products with their own labels on it, and they offer it at a better price. Just check the ingredients to be sure you’re getting the same product.”Know what you already haveBefore you buy another box of pasta or a pantry staple, make sure you don’t already have six boxes of it at home. It seems silly, but before you go on a major grocery shopping spree it’s best to take inventory of your pantry, fridge, and freezer. This way you aren’t wasting money on a duplicate and you’ll use what you have while it’s still good.Everydollar suggests using home inventories as a means of meal planning, as well. If you already have meatballs and sauce, for example, you could pick up bread an d noodles and have yourself a spaghetti dinner in no time.In addition to making a list of what you absolutely need, Urban Tastebud suggests figuring out what products are running low in your fridge or pantry. If you know where you’re running short, you’re less likely to run out of an item (like milk, butter or certain spices) when you need it.This works in reverse, as well. “By keeping track of everything that is running low, you save yourself the risk of buying something when in reality you don’t need it yet,” Urban Tastebud adds.Consider sales (but carefully)Have you ever bought a bunch of bakery mixes after Christmas or Thanksgiving or stocked up on chocolate after Valentine’s Day? When it comes to taking advantage of seasonal savings, grocery stores can be your best budgeting friend.Urban Tastebud suggests taking advantage of post-holiday sales for certain grocery buys. “Many goods, including holiday-themed candy, baking mixes, spices, etc., are always heavily disc ounted after the holidays,” it says. “So if you don’t mind eating orange, yellow, and red candy, then shopping for goodies after Halloween can lead to major savings.”When it comes to other sales, it’s best to stock up on products you use a lot if you can get a good deal. Things like toilet paper, soda or certain kinds of cleaners are great stock-up items.The sales you should be wary of, however, are ones that price five items for $5 or 10 items for $10. At first glance they present a great way to stock up and save money, when they’re actually not a great deal if you look at the individual unit prices of the items that qualify.“If you ever see some items marked as 10 for $10, be sure to check the individual unit price because sometimes these [individual] items can be only $0.89, costing you $1.90 extra,” Urban Tastebud says.Don’t impulse buyHere’s an obvious one: Don’t buy impulse items at the register. You don’t need them, and they’re going to be more expen sive than their counterparts in other areas of the store. Urban Tastebud notes stores may jack up the price of individual items near the checkout counter, even though a bulk container of the same item can be found elsewhere in the aisles for a more reasonable unit price.Stay vigilant  Just as in anything else, if you go in with the right knowledge and determination, you can save a ton on groceries. Don’t let the bright sale signage or layouts overwhelm your budgetary goals, and you’ll be eating like a king with a wallet that’s as happy as your belly.To learn more about saving money on everyday expenses, check out these related posts and articles from OppLoans:Save Money This Summer by Saving EnergySave a Few Bucks on Fido with These DIY Pet ToysReusable Purchases That Will Save You Money in the Long RunCar Maintenance Tips That Will Save You Money Down the Road  |Instagram

Sunday, May 24, 2020

Copper Synthesis Experiment Essay example - 1188 Words

Experiment 1: Synthesis of Copper Compounds Introduction This experiment involves the synthesis of compounds originating from pure solid copper. By applying solubility rules and the reactive properties of substances, many compounds which would otherwise be costly to extract from nature are able to be synthesized in the laboratory. Laboratory synthesized may sometimes be more economical than natural extraction, however it poses its own problems with the amount of substance that is actually yielded from the production reactions (Stathopulos, 2007). Almost no reaction has 100% yield, thus scientists inadvertently produce undesired products that must be filtered or decanted out of solution (Petrucci et al, 2007). Beginning with pure copper†¦show more content†¦The intent of the experiment was to perform all the reactions only to return to the pure form of copper again. A reasonable percent recovery would be 90% +, however, the percent recovery obtained in our experiment was an outrageous and impossible figure of 3382%. Unless the law of conservation for matter is wrong, only error can explain that abnormal figure. Under the guidance of our TA, we were advised to remove our evaporating dish from the Bunsen burner to prevent overheating and the formation of copper oxide. A veryShow MoreRelatedClass Action Lab Report Essay examples1100 Words   |  5 Pages4/13/12-4/14/12 Class Action Lab Report Purpose: To determine, through observations, the identity of substances produced in a chemical reaction. Materials: Safety Goggles Stirring rod Magnesium ribbon Solid CuSO4†¢H2O Matches Test tubes Copper metal 3M HCl Red and blue litmus strips 0.1M AgNO3 Zinc metal 0.1M Pb(NO3)2 Test tube holder 0.1M KI Bunsen burner 0.1M Na2NO3 Crucible tongs 1.0M NaOH Water (H2O) 0.1M Ca(NO3)2 50mL beaker 1.0 CuSO4 Procedure: UsingRead MoreMetal Catalyzed Carbon899 Words   |  4 Pagesas an important reaction class in chemical synthesis.1 Nowadays, there is a variety of competitive methods for synthesis of aryl-nucleophile bonds with various sources of C-, O-, N-, P-, and S-nucleophiles.1-5 Researchers have extensively applied palladium-based catalysts in cross-coupling reactions in both academic and industrial settings,5, 6 however, our goal is the development of a range of copper-based catalysts for cross-coupling reactions. 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You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formulaRead MoreChemistry And Application Of Click Chemistry1411 Words   |  6 Pageschemical biology filed, the typical synthesis way of this concept, and current application in drug synthesis and research. Keywords: Click chemistry, vivo system, Huisgen 1,3-dipolar cycloaddition, CuAAC, Diels-Alder reaction Introduction: The phrase click chemistry was invented by K. Barry Sharpless in 1998, and was first integrally described by Sharpless, Hartmuth Kolb, and M.G. Finn of The Scripps Research Institute in 2001.[1][2] In Chemical synthesis, â€Å"Click Chemistry† is a category bio-compatibleRead MoreChemistry Lab : Preparation Of A Dye830 Words   |  4 PagesCH 220C – Organic Chemistry Lab Experiment 14: Preparation of a Dye: Azo Violet Rodan Devega Introduction The purpose of this laboratory experiment was to synthesize azo violet, and conduct a product analysis in the form of a dyeing test and indicator test. Synthesizing azo class dyes typically involves two steps, diazotization and diazonium coupling. Diazotization is the conversion of a p-nitroaniline’s amino substituent to a nitrogen-nitrogen triple bond, resulting in the formation of an arylRead MoreChemical Reactions And Chemical Reaction Types Essay1106 Words   |  5 Pages Abstract This paper is about chemical reactions and chemical reaction types. All the data gathered was from conducting multiple experiments. Each experiment was performed carefully and analyzed to obtain the necessary information for the paper. That information included the four signs of a chemical change, the rnx type, and more. Introduction A chemical reaction is a process in which elements or compounds react with one another to create new or different substances. There are twoRead MoreThe Elemental Exploration Of A Salt And Salt Solution, And The Synthesis And Crystallization Of Aluminum1609 Words   |  7 PagesProject A: The elemental exploration of the behavior of iron in physiological conditions, the acquisition of solid copper from a salt and salt solution, and the synthesis and crystallization of aluminum. Introduction: Iron is an essential element in the human body. It can be found in the hemoglobin and transferrin of the bloodstream, and in myoglobin in muscle tissue. The main purpose of iron is to transfer oxygen within the body. To gain iron, humans must consume a diet that consist abundantlyRead MoreThe Effects Of Lead Nitrate Contamination On The Plant Brassica Rapa1588 Words   |  7 PagesCorey Biology Department Birmingham-Southern College Date: October 24, 2016 Teacher: Jennifer Kelly Abstract In my biology class we conducted an experiment to determine if there was a direct correlation between the concentration of lead levels in soil and the effect it has on plant synthesis and plant height. The specimen used in the experiment is a species of plant, Brassica rapa. Seeds of B. rapa were careful planted within every cell of a cubical that was filled with six different concentrationsRead MoreProperties of Gases - Chem Labpaq Essay689 Words   |  3 PagesProperties of Gases General Chemistry 1 Lab 5 Abstract: The purpose of this experiment is to examine the properties of several gasses, which were the products of a reaction, and examine the way the gasses react under certain conditions. These conditions, such as introducing a flame to the gas as well as oxygen and CO2, caused other reactions to occur. Hypothesis: If the gasses are correctly synthesized then there will be a clear reaction with the introduction of the flame, O2, CO2, Air

Wednesday, May 13, 2020

Online Communities Essay - 1061 Words

Communities are all about groups of individuals who share something in common. This makes going on the internet seem like an odd way to find more communities, form new ones, or strengthen pre-existing ones. The internet however is full of communities. Communities can be based upon religion, location, ethnicity, an interest, or a personal matter. The internet itself is â€Å"a global distributed data communications network† (Kirmayer, Raikhel, Rahimi, 2013, p. 166). This is what makes the internet so full of communities because communication is the key to putting multiple individuals with commonalities into communication, which is the basis of any community. Online communities differ from communities that exists off the web in a couple of†¦show more content†¦This distinction of authority aids in creating a hierarchy within a community. With online communities, every member is often able to contribute equally, allowing their voice to be heard. This gives the impress ion that every individual is an authority figure on a subject due to their ability to be equally heard. (Cellary, 2008, p. 107) For example to post a video about cats on Youtube, it is equally as easy for one person as it is the next to post a video. They simply must own a camera, have a Youtube account, be willing to record something about cats, and post it on Youtube (How to upload videos, n.d.). A third and huge difference between the two types of community is that online communities offer up the chance to be anonymous. Online one can identify with the use of almost any name or image. The name doesn’t have to be a real one, and there’s not really any way for one to prove the image is truly theirs or of themselves (Cellary, 2008, p. 107). However, this ability for anonymity within an online community doesn’t necessarily mean privacy. The study Internet social network communities: Risk taking, trust, and privacy concerns by Fogel and Nehmad (2008) talks about how much university students are willing to share on social media. Although the study does strictly look at one set of university students, it gives an example of how much individuals are willing to share personal information such as pictures of oneself, ones’ email address, instant messenger address,Show MoreRelated Online Community Essay1489 Words   |  6 PagesOnline Community After searching through various online communities, I finally found one that looked very interesting and informative to me, fitness.com. I chose an online community in which I would not only gain helpful information and advice, but I could also communicate with people who are interested in the same topic as I am. I knew right away that it was a community rather than just a typical webpage that someone had made. A community has places where people can post messages onRead More My Online Community Essay1309 Words   |  6 PagesMy Online Community I aimlessly wondered the Internet trying to find a community suitable for me. I wasn’t sure what I was looking for. I have many interests, but I really don’t have a strong passion for something. So I decided to join a community in which I could express myself as a teen and talk about general issues. I joined the mtv.com community. There I expressed my thoughts on everything, ranging from music to daily events that shape our world. There I had a chance to share myRead More The Nature of Online Communities Essay1449 Words   |  6 PagesNature of Online Communities What brings people together on the internet? Is it the desire to find a friend and a community or is it the other extreme of finding someone to argue with and release all the anger that has built up inside? Do people not like who they are in real life and find the internet as a place to have a new identity, the person that they have always wanted to be? Or, is it what Rheingold states in his article â€Å"The Virtual Community,† â€Å"virtual communities treat themRead More Exploring Online Communities Essay1505 Words   |  7 PagesExploring Online Communities First language, then print, and now telecommunications allow us to link thoughts and form communities, or groups based on common interests or common localities. However, in the not so distant past of the pre-virtual reality and pre-telecommunications age, community was the place where people lived, worked or played. For most of human recorded history, community was close to home and place dependent. Nowadays, cyberspace exists and permeates the real world inRead More Online Communities - Chat Rooms and Discussion Boards Essay1343 Words   |  6 PagesOnline Communities - Chat Rooms and Discussion Boards To those who have never experienced an online community they may seem pointless, a waste of time or simply childish. However, for those that have expanded beyond the traditional means of communication such as, talking on the telephone or conversing face-to-face, online communities offer a new and exciting means of communication. They offer a chance to meet others, gain advice, voice an opinion, defend an argument, or to simply relax and haveRead More Diversity of Online Communities Essay1180 Words   |  5 PagesDiversity of Online Communities The article in U.S. News World Report called Go Play-On the Web represents a community of virtual gamers on the Internet. These games are a lot more complex than the online gaming of the past. When these people that belong to this particular community log on to the net they are interacting with each other in huge 3-D virtual worlds. Some of these games focus on a particular subject like playing virtual game shows with others on the net. Some of the new gamesRead More The Impact Of Online Communities On Physical Social Relationships1310 Words   |  6 PagesAbstract Nowadays, people spend much time in online communities to network with virtual friends and play role plays. They provide an advantage for people with special needs who cannot leave the house, because they benefit from the accessibility of the internet. Moreover, they help people who often move to stay in touch with their friends. Nevertheless, spending too much time in online communities leads to drawbacks in the development of the user’s personality. More energy is dedicated to the virtualRead MoreThe Pros and Cons of Three Types of Online Communities- Chat Rooms, Social Network Sites, and Online Classrooms1455 Words   |  6 PagesAn online community is a network of people who come together and communicate online, usually because of a common interest or goal. There are many different types of online communities. Some examples of online communities are: email distribution lists, message boards and newsgroups, instant message (IM) services, chat rooms, blogging sites, soci al networking sites such as MySpace and Facebook, and online classrooms/school groups. I intend to discuss three of these types of online communities –Read MoreSex Offenders Against Children are an Epidemic Overrunning the Online Communities556 Words   |  2 Pagesdecades ago. According to a report made by the U.S. Department of Justice; â€Å"one in five children (10 to 17 years old) receives unwanted sexual solicitations online† (Knetzger Muraski, 2008). One of this online sex-crime against children is known as child enticement. The Florida statute 847.0135 states that an individual is involved in online child enticement when â€Å"[†¦] utilizes a computer on-line service, Internet service, or [†¦] to seduce, solicit, lure, or entice, or attempt to [†¦] a child or anotherRead MoreOnline Communities.1879 Words   |  8 PagesOnline Communities. To start off my essay I would like to stress on the fact that an online community is not created online communities evolve and flourish. Most of the well built online communities take time and effort to establish them. In this essay I will be covering topics like how people interact in an online community, also will be looking at how to facilitate a successful online discussion and how to evaluate the success or failure of an online community. With the dawn of the new

Wednesday, May 6, 2020

Gangsterism in the 1920’s Free Essays

â€Å"The Roaring Twenties,†; what a perfect aphorism. It was certainly roaring with music and dance, but it also was roaring with gangsters. In the aspect of gangsterism, the thirties were also roaring. We will write a custom essay sample on Gangsterism in the 1920’s or any similar topic only for you Order Now Americans in this time period tolerated criminals, especially those involved in bootlegging. Bootlegging is the smuggling of illegal substances. Bootlegging could have possibly been tolerated because of the recent outlaw of alcohol during this time period, known as the Prohibition. Gangsters were involved in bootlegging, prostitution, gambling, organized crime, and racketeering. Al â€Å"Scarface â€Å" Capone, Bonnie and Clyde, and John Dillinger were the headliners of this era. Gangsterism provided a risky job but maximum rewards in a time when jobs were scarce and our country was in the midst of a depression. When Congress passed the eighteenth amendment, alcohol was banned in every way from America. People who were addicted to alcohol and even those who were accustomed to the casual drink still had a demand for it. Many would pay top dollar for a drink, they didn’t think obtaining alcohol would be too immoral because it was legal just a few years back. Citizens would hold private socials and would serve alcohol to all of the guests, this was usually done by the wealthy because of the high cost of alcohol. This opened up many opportunities for those who were willing to take risks and bootleg illegal alcohol to the country. With money flowing like water to many of these gangsters, greed began to grow rapidly among them. They began to explore more demoralizing fields of work. These gangsters began to open speakeasies, which were like old west taverns with prostitution, gambling, and of course, drinking. Speakeasies always had cover charges ranging from five dollars to twenty-five dollars, depending on the price of alcohol at the time. America’s obsession for alcohol allowed the owners to charge any price they wanted. Thousands of speakeasies were located in Chicago, which meant that tens-of-thousands of speakeasies were spread around the country, with most in the large cities. So many Americans were sneaking around under the law that moral values began to dwindle. Gangsters moved up in the ranks and began more vicious crimes such as murder and massive theft. Most of these crimes were necessary to keep business alive. Murder was widespread because some people who would be paid to keep quiet would talk, in return they would be dealt with†¦very harshly. In 1929, gangsters from across the country gathered in Atlantic City, New Jersey to meet with one another. Leaders from all of the major crime syndicates attended. At the meeting, they made agreements on boundaries and a their â€Å"government† to make sure relations between groups were peaceful. Anyone who broke these rules were, again, dealt with†¦very harshly. One of the most famous crime bosses ever was Al Capone. His nickname was â€Å"scarface. † which is used as a nickname in many mobster movies. He had his own army†¦seven thousand strong. He owned ten thousand speakeasies, and he was involved in all of the traditional gangster activities such as prostitution and gambling. Many politicians and police officers were on the payroll of Capone. Because of his one-hundred million dollar annual income, he had no problem maintaining this kind of lifestyle. Capon’s most famous quote is â€Å"When I sell liquor, it’s bootlegging. When my patrons serve it on silver trays on Lake Shore Drive, it’s hospitality. † In 1929, a rival boss, Bugs Moran, began to infringe on Capone’s territory. He sent some of his â€Å"boys†, disguised as police officers, to one of Moran’s drop-off spots for alcohol. They disarmed Moran’s men and then sprayed many rounds in to their bodies, ending Moran’s career as a gangster. This is known as the St. Valentine’s Day Massacre. After the Massacre, Capone’s freedom and iron-fisted control was on the decline because of the Public Enemies List. Law enforcement tried to nail him for any offense for which they could get proof, the only one was tax evasion. Capone served eleven years in prison and left wrecked by syphilis. He died peacefully in his home and was buried next to his father and grandfather in Chicago’s west side. Other criminals took advantage of corrupt law enforcement and went on sprees of killing and looting. Bonnie and Clyde are two famous sidekicks who drove over the country committing murder after murder and robbery after robbery. After eight years of ludicrous behavior, the couple was gunned down outside of Arcadia, Louisiana by law enforcement. Because it was as if the law was a minority, the couple’s bodies were displayed as if they were prizes. Another criminal was John Dillinger, he was a pioneer in organized crime. He would time switching of guards, find escape routes, and always have a safe house. He had many informants on the â€Å"inside† that were paid to assist him. One particular time in Wisconsin, the FBI and police officers had him surrounded in a lodge and charged in to capture him and he mysteriously vanished eaving the government embarrassed. Dillinger was finally killed when he and his girlfriend were exiting the movie theatre and was met by several rounds of ammunition fired by awaiting law enforcement. Law enforcement of the day was struggling badly. It had police who were under the payroll of organized crime, police who would participate in illegal activities themselves, and morale was hard to come by. Police would not cooperate with one another and share information. The men with the still-good hearts had a desire for personal glory, the hero. he Federal Bureau of Investigation began massive manhunts to destroy gangsterism, and they finally were successful by sending many undercover agents in to the mobs themselves and secretly in to the speakeasies. The success is remembered by an image the FBI has today. It is known as the country’s premier law enforcement agency. Gangsterism was a powerful part of the twenties and thirties. Gangsterism was caused by a domino effect, beginning with Prohibition. Unlike most at the time, they received the Prohibition with open arms. It meant monopoly on liquor, which meant opportunity for money. Greed and lust for power fed these â€Å"czars† of cities, commanders of armies. Prohibition ceased after 1933 with the passing of the twenty-first amendment, which legalized alcoholic beverages. Gangsters began to fade along with their prominent source of income†¦liquor. Some of these gangsters were thrown in jail and others quit before they could be caught. When Capone was apprehended, he said, chuckling, â€Å"All I ever did was supply a demand,† How to cite Gangsterism in the 1920’s, Essay examples

Monday, May 4, 2020

Critically examine one of Descartes arguments free essay sample

Thought and Reality Critically examine one of Descartes arguments for the existence of God Descartes Meditation Ill provides a causal and cosmological argument that God exists. Having used the Method of Doubt in Meditations I and II in order to reject his false beliefs, Descartes assumes that the only things he knows at this point are the conclusions reached at Meditations I and II. Having also doubted Judgements in arithmetic and geometry because of the possibility of the existence of an evil demon, Descartes wishes to find out if there is a God, and if so, is this God deceitful? If He is good, then t would follow that mathematics and simple natures could be reinstated. In order to disprove the evil demon hypothesis, Descartes examines the different degrees of reality In things in comparison to God. Descartes idea of God Is of an Infinite substance. The idea of infinite substances cannot be caused by a finite substance, but only by another infinite substance, such as God himself. We will write a custom essay sample on Critically examine one of Descartes arguments or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Therefore Descartes concludes that God as an Infinite substance exists. Several criticisms can be made concerning Meditation Ill. It Is arguable that Descartes causal proof does not leave room for simple religious faith. There are also other flaws in his proof of the existence of God, which will be discussed later in this essay. Descartes opens Meditation Ill by reminding himself that he is subject to a very confining perspective because the Method of Doubt is still in force: In order to try to extend my knowledge further, I shall now look around more carefully and see whether I cannot still discover In myself some other things which I have not hitherto perceived_l 1 . Ren © Descartes, Key Philosophical writings, ed. Enrique chÃ' vez-Arvlzo (Hertfordshire: Wordsworth Editions Limited, 1997b p. 148. All further references are o this edition and are given in the text. Descartes asserts that became certain that he Is a thinking being via a clear and distinct perception. He is convinced that all clear and distinct perceptions are true; sensory evidence, however, is not clear and distinct, therefore Descartes says he cannot trust it. Descartes doubts judgements in arithmetic and geometry because of the possibility of the existence of an evil demon. He asserts: n order to be able altogether to remove [this opinion], I must inquire whether there Is a God as soon as the occasion presents Itself; and If I find that there Is a God, I must also inquire whether He may be a deceiver; for without a knowledge of these two truths I do not see that I can ever be certain of anything. (p. 149) Descartes reels tnat unae rtaKlng an Investigation tnat proved s existence would mean that mathematics and simple natures could be reinstated. However, one might argue that if Descartes can know nothing without first knowing that God exists, how can he form premises for proving that God exists without circularity? Descartes divides thoughts into three categories in order to sort out where truth and error occur. He says that some ideas are images, some are volitions and some are Judgements. Images, if seen as occurrences in the mind, cannot be false. Descartes illustrates this point with the example of his having a mental event irrespective of whether he is picturing a goat or a chimera: Of my thoughts some are, so to speak, images of the things, and to these alone is the title idea properly applied; (p. 49) He says that the same is true of volitions insofar as they are seen as mental events. It is easy to Judge ideas inaccurately if one Judges an idea as being in conformity with the external world: inally it appears to me that sirens, hippogryphs, and the like, are formed out of my own mind. (p. 1 50) Descartes thinks that ideas are of three types: innate, adventitious or factitious. However, he wonders if any of his adventitious ideas could be caused by something outside himself. He concludes that there are different degrees of reality in things, and that ideas of infinite substance, such as God, have more reality than ideas of finite substance; therefore in Descartes opinion, God has more reality than a man who is only a finite substance. However, it is not at all obvious that there are degrees of reality in the ay that Descartes suggests. In the causal principle, Descartes claims that there must be at least as much reality in the cause ofa thing as in its effect. He is lead to believe this because he feels that it is a clear and distinct idea: supreme God, eternal, infinite, [immutable], omniscient, omnipotent, and Creator of all things which are outside of Himself, has certainly more objective reality in itself than those ideas by which finite substances are represented. (P. 152) The causal principle can be criticised, however, as there is no way of verifying that God is the cause of the idea of God. In addition, the whole causal principle seems to violat e the Method of Doubt which Descartes discusses in his first two meditations. One may say that Descartes is assuming too many things, but despite this, Descartes continues his argument for Gods existence by asserting that the more independently a thing exists, the more real it is. He says that ideas cannot have more formal reality than their causes; the cause of an ideas content must have at least as much reality as the idea: To take an example, the stone which has not yet existed not only cannot now ommence to be unless it has been produced by something which possesses within itself, either formally or eminently, all that enters into the composition of the stone P. 153) Although ideas of corporeal things, such as angels, could be produced by Descartes because he has more formal reality than they do, Descartes is only a finite substance so ne cannot De tne cause 0T an Idea 0T InTlnlte suDstance could not be caused by Descartes who is only a finite substance. Since ideas must have at least as much formal reality as their cause, Descartes says that the idea of G od can only be aused by an infinite substance. Therefore, Descartes says, we must conclude that God necessarily exists. (p. 56) However, another criticism which can be made of Descartes causal principle is that it is not obvious that it can be applied to ideas. In order to further strengthen his argument, Descartes raises three objections to Meditation Ill and systematically knocks them down. The first objection he raises is the possibility that he may not really have an idea of God, but that he has only formed an idea of the finite and tired to imagine away its boundaries. His response o this objection is that an infinite idea has more reality than a finite idea, and that an infinite idea is logically prior to a finite idea. The second objection that Descartes raises is that his idea of God may be like his ideas of hot and cold. For example, nothing in an object can be isolated as coldness or heat; similarly, nothing in the world corresponds to his idea of cold. Perhaps it is the same with God. The reply he makes is that he has a very clear and distinct idea of God. Finally, Descartes wonders whether he could perfect himself to become such a close approximation to God that e could suffice to produce an idea of God on his own. His reply to this last objection is that even if he could do this, he would only be potentially perfect. God, however, is actually perfect. Descartes final strategy is to consider that the self has the idea of God. He tries indirectly, by eliminating various possibilities to show that God is the cause of his existence. He begins by saying that the self does not exist independently. Descartes see that he is not the author of his own being. If he were completely independent he would be God, but he is not. In addition, Descartes asserts that because he ontinues to exist, there must be some conserver or conserving cause for this; the logical cause for this is God and no conserver lesser than God will suffice. Descartes also wonders how he obtained the idea of God, believing that it was not inherent or produced artificially, but that it is an innate idea that was planted in him by God Just as a tradesman stamps his work. However, it is questionable as to whether people really do have an idea of God. For example, babies and mentally retarded people do not seem to have an idea of God, and some people may never have an idea of God at all. Finally, Descartes ends Meditation Ill by contemplating the Divine Majesty: t seems to me right to pause for a while in order to contemplate God Himself, to ponder at leisure His marvellous attributes, to consider, and admire, and adore, the beauty of this light so resplendent (PP. 161-162) Descartes Meditation Ill does provide an examination into Gods existence, although at points his argument is flawed and incomprehensive. Often the premises are Descartes own assumptions, leading to unfounded conclusions. Descartes seems to make such assumptions in an att empt to validate the whole argument. In ddition, it is arguable that Descartes causal proof does not leave room for simple rellglous Taltn However, aesplte tne crltlclsms tnat can De made 0T Mealta Descartes argument is an inspired work in which he fully explores the idea of God in his own way. Although he imposes many of his personal feelings about God, Descartes does construct an argument that is logical in its structure and that gets to the heart of the questions he initially asks.

Sunday, March 29, 2020

Effective Guidelines for Writing an Excuse Letter Essay Example

Effective Guidelines for Writing an Excuse Letter Paper Generally, excuse letters are written when students miss their classes/schools or when company employees take a leave without informing their employer. This letter provides an explanation of their leave or the reason why they miss the school. The absence of an employee or a student can be because of numerous personal reasons. For instance, the person took a leave because of illness or they simply got tired of going through same tedious routine and wanted to take an intentional break from work. At some point in your life, you also have to turn in an excuse letter to the school or company to explain them the reason of your intentional leave. Although excuse letters are mostly given after the leave has taken place but sometimes it can also be given before taking the voluntary absence. In case if a student has taken an intentional leave and asked to submit an excuse letter, then usually their guardians will have to compose a brief and to the point absence note which passes on their reason for the absence to the principal. If the person has taken a leave because of a prolonged illness, then a doctor’s medical certificate would suffice for an absence note. Importance of an Excuse Letter We will write a custom essay sample on Effective Guidelines for Writing an Excuse Letter specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Effective Guidelines for Writing an Excuse Letter specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Effective Guidelines for Writing an Excuse Letter specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Writing an excuse letter is a very important job as it reflects the commitment of the individual to the job and show that they are devoted to fulfilling their professional life responsibilities. Moreover, it also signifies that the individual comprehends the importance of time and is committed to completing his/her pending tasks. An excuse letter clearly indicates to the recipient the earnestness and commitment of the individual to his/her work. Let us see some effective guidelines that will definitely help you with writing a professional excuse letter. Guidelines of Writing an Excuse Letter Composing an excuse letter is a task that should not be taken lightly. The letter should be an appealing one and it should also give a professional look. Excuse letters should be printed on clean and good quality papers. Start your excuse letter by mentioning the proper date. Just like any other letter, the name of the sender and the recipient is mentioned on the left hand side of the excuse letter. The name of the recipient, the person to whom the letter is being sent, will be written right after writing the date. For instance, April 12, 2013 To, Mr. Anderson, or The Principal In case if the excuse letter is intended to send to the principal of the school, the name of the guardian or sender will be mentioned unless the student is above 18 years old. Although it is not necessary but you may write a heading or a subject that mentions what the letter is about. Once the upper section of the letter is finished, come to the body of the letter. Remember that excuse letters are succinct, therefore, do not write the whole story instead mention only the reason of the absence in a line or two. Conclude the excuse letter with something like yours truly or yours sincerely.

Saturday, March 7, 2020

Tips on Writing a Strong Evaluation Essay

Tips on Writing a Strong Evaluation Essay Tips on Writing a Strong Evaluation Essay Many people are convinced that academic papers similar to evaluation essays are very complicated and difficult to understand. In fact, an evaluation essay is pretty simple to compose. All you have to do is to learn definite points that will help you complete this assignment properly. This type of essays can be compared with a review. However, it is more specific and rather detailed. A review of a book, movie or article gives the explanations of why you prefer something or dislike it. In the meanwhile, an evaluation essay demands the list of all positive and negative aspects of the researched topic. In other words, you are to show the definite criteria or specify your preferences. Accordingly, there seem to be no problems while performing this piece of academic writing. You simply express your own attitude towards the main idea of the research and provide explanations. Of course, you ought to pay close attention to the manner you write and the things you judge. There are several points, which will come you in handy. Choose a Topic Commonly, students are free to choose a topic they wish. If this is your case, you are extremely lucky. You have a nice opportunity to make the most beneficial combo in any academic piece of writing. You can choose a topic, which is interesting for both you and your audience. Don’t forget that your judgment is based on a set of definite criteria. Therefore, you ought to know the subject properly. Choose a theme which would be easy and captivating to evaluate. Compose Your Thesis Your next step is to formulate your thesis statement. It is understood that a thesis is the strongest element of any research. It tells the readers what you are studying and the direction the conversation or discussion would go. However, a thesis statement for an evaluation essay should be written with great caution. You should clearly express your intentions so that your readers could understand what criteria you have picked up. State the value or the lack of value. Say how you want to continue your research and select appropriate examples. Choose the Evaluation Criteria Another crucial point for this specific assignment is the choice of the evaluation criteria. It plays an utterly significant role. Consequently, you should learn all of them and pick up the most suitable and effective. It is remarkable that you shouldn’t stick to a single evaluation principle. Your judgments should be clear enough. In the meanwhile, your research is supposed to ignite the pure interest in your readers. Make your paper more vivid. This can be gained using several evaluation criteria. However, don’t overdo! You cannot mess the things up. Know the middle ground. You can choose your own criteria based on different methods. For instance, you may put to use the method of comparison and contrast; begin with your expectations before you undertook the topic and show your impressions in the end; provide an analysis based on visual, causal or social context; and other methods. Get the Evidence One more critical moment is to find the supporting evidence, which would prove your point of view. Depending on your topic, find as many facts and proofs as possible to sustain your main argument. For instance, you might be evaluating the services of a certain restaurant. Learn its menu, various conveniences, the quickness of service, attentiveness of waiters, professionalisms of the chef, and other criteria. Afterward, give grades in accordance with your own criteria. Draw an honest conclusion concerning the visited restaurant and tell whether it has met your expectations or not. Be reasonable and straight to the point. Highlight all advantages as well as possible drawbacks. Knowing all mentioned-above essentials, you may start writing your evaluation essay. However, you should not forget about the common elements of merely all essay types. You should follow the structure. It should contain the introduction, main body, and conclusion. Write the thesis statement at the end of the introductory section. Make the list of references, title, table of contents, and other things in accordance with the assigned style.

Wednesday, February 19, 2020

Claim (Who win) Essay Example | Topics and Well Written Essays - 1000 words

Claim (Who win) - Essay Example City and County of Honolulu, 1989). The US District Court of Hawaii, found that the oral ability to communicate effectively and clearly was a legitimate occupational qualification for the job in question (Fragante v. City and County of Honolulu, 1989). The court also found that defendants failure to hire Fragante was explained by his deficiencies in the area of oral communication, not because of his national origin (Fragante v. City and County of Honolulu, 1989). Finding no proof of a discriminatory intent or motive by the defendant, the court dismissed the suit, hence, an appeal by Fragante (Fragante v. City and County of Honolulu, 1989). Title VII enunciates the policy that unlawful discrimination based on national origin shall not be permitted to exist in the workplace and also provides for the ‘preservation of an employers remaining freedom of choice’ (42 U.S.C.  § 2000e-2(a)(1)(1982). The Court stated that Title VII aims to balance employee rights and employer prerogatives (Fragante v. City and County of Honolulu, 1989). The intent of the statute was to drive employers to focus on qualifications rather than on race, religion, sex, or national origin (Fragante v. City and County of Honolulu, 1989). The Court explained that an adverse employment decision may be predicated upon an individuals accent only when it interferes materially with job performance, and that there is nothing improper about an employer making an honest assessment of the oral communications skills of a candidate for a job when such skills are reasonably related to job performance (Fragante v. City and County of Honolulu, 1989). In this case, the defendants advertised for applicants to fill SR-8 vacancies (Fragante v. City and County of Honolulu, 1989). The job announcement required the ability to â€Å"deal tactfully and effectively with the public† and hence, the oral ability to communicate effectively in English, which is reasonably related

Tuesday, February 4, 2020

Wound care management Essay Example | Topics and Well Written Essays - 3750 words

Wound care management - Essay Example She also has type 2 diabetes, which is controlled with oral hypoglycaemic drugs. She developed pressure ulcer at sacral area over 2 - 3 week period. She was treated by a clinic doctor who instructed the home care nurses to do daily povidine gauze dressing. Mrs. Stanley is a retired school teacher and an extremely proud lady. She insists on maintaining her dignity at all times and she refused to accept that she had a pressure ulcer. She has a married daughter who stays in Singapore with her own family. She flew back from Singapore to accompany Mrs. Stanley on the day of her admission to hospital.√ On testing, she was discovered to have a pressure ulcer at her sacrum. When the wound was examined, she groaned with pain and tried to stop the nurses from touching the wound. The pressure ulcer to her sacral was measured approximately 10cm by 12 cm with a central area of slough which was surrounded by softer yellow tissue and some necrotic tissue. This is under the stage of dying. The surround tissue was erythema and oedematous (Fig 1). The dark staining to the surrounding edge of the wound shows iodine related staining. There is some tenderness and mild oedematous been detected by using gentle touch. Malodour was a concern and Mrs. Stanley was distressed by it. She was prescribed with intravenous antibiotics, subcutaneous hypoglycemic agent, and alternating mattress. v A holistic approach has been performed on Mrs. Stanley to initiate an effective wound healing to occur. Bale (2007) describes if the patient’s psychological needs and comprehensive understand of wound healing are met, the move from sick health to health might move ahead quickly and more proficiently. The two initial areas of concern for Mrs. Stanley were wound pain and exudate. Literature review for these two main areas has been done by using databases such as Medline and CINAHL. The key words which have been used for searching were pressure ulcer, pressure sore, decubitus, wound, ulcer, debridement, exudates, wound fluid, wound drainage, wound pain equipment, alternating mattr

Monday, January 27, 2020

Seedling Production Of Mud Crab Scylla Serrata Biology Essay

Seedling Production Of Mud Crab Scylla Serrata Biology Essay Seedling production of mud crab Scylla serrata has the potential to be an effective tool to support the demand of mud crab due depleted seed stock from the wild. Moreover, there is high consumer demand on the global production of mud crab Scylla serrata from 1999 to 2000. Generally, consumer for mud crab Scylla serrata is Chinese communities which particularly at China, Vietnam, Singapore, Taiwan, Hong Kong and also Malaysia (Liong, 1993). Further, Malaysia aquaculture only practices a growth out of mud crab until the marketable size. Malaysia is currently in progress to develop mud crab industry by not relying on seed stock from Thailand. The crab production is relatively small about 650 tonnes per year (Liong, 1992). In Malaysia, not many studies have been done on mud crab culture. Studies on the larvae culture by Jamari (1992) shows that the high mortality of the megalopa and crablet stages cause by cannibalism among the larvae. Several studies of rearing mud crab larvae had been reported in Indonesia (Marjono and Arifin ,1993), Philippine (Quinitio, 1997) ,Vietnam (Hoang, 1999) and Japan ( Hamasaki,2002 ) that shows the high percentage of survival rate were 3.2 % , 3.7 % ,24 % and 30%-40%. However, the survival rate is still low ranged from 1% to 30% from zoea to megalopa. Current status In Malaysia, the production of mud crab has been decreased begin 1995 to 2005 (625 tonnes to 162 tonnes). However, the production of mud crab in other countries such as Indonesia, Philippines and china were increased significantly. Recently, the market demand for mud crabs has exceeded wild harvest. Mostly, mud crabs were imported from India, Sri Lanka, Indonesia and Bangladesh. The present improvised status of mud crab stock in Malaysia is also compounded by other factor. These included a recent increasing interest in soft-shell and growth out mud crab framing .In addition, more conventional culture method were invented such as compact crab farming system for growth out mud crab. Further, this new breeding system has been widely implemented by Perlis state community under the Perlis State Economic Development Corporation. In addition, the most factors that contribute interest to the mud crab culture is due to high demand and fetches a good price compare to other crabs species such as blue crab (Callinectes sapidus). During this time, the price has increased from RM 10.00/kg in 2009 to RM 30.00/kg in 2010 (Khalidah, 2009).It seem that the increasing of mud crab price has encourage many coastal fishing communities to initiate trials in floating cage, in specially designed earthen ponds and more recently in pen enclosures in mangrove forests. Other factor that contributed to increase of mud crab farming is the physical characteristic of mud crab itself which is high tolerance to both nitrate and ammonia. High tolerance is beneficial for mud crab culture due to ammonia is often the most limiting factor on closed aquaculture systems. Their high ammonia tolerance may be attributed to various unique physiological responses which may have arisen due to their habitat preferences (mangrove forest). However, the larval survival is low and need to further investigate using alternative approaches. The first studies of crab seed has been done in Malaysia since 1995 by the Inland Fisheries Branch, Department of Agriculture, Sarawak (Tan, 1997) but the survival rates of megalopa are low. Since there is still no commercial-scale hatchery production of S.serrata, all forms of mud crab culture depend on natural seed supply. Currently, we still do not have any mud crab stock enhancement in Malaysia such as habitat improvement and restocking. However, there are studies has been made by Kosuge(2001) in brief assessment of stock of mud crab Scylla sp. in Matang forest, Malaysia and proposal for resources management. He proposed to the management plan of Matang Mangrove forest by provided separate fishing restrictions area and other indirect effect and basis information for management of mud crab resources. Broodstock management Berried S.serrata female were caught in open sea by using Trawl net. The broodstock were migrated to the shore for their spawning. The broodstock are commonly scrubbed to remove mud, encrusting algae, infestations and detritus before introducing the wild broodstock into the hatchery. Selection of good quality of broodstock has been discussed by several researchers in term of captive spawning pattern, environment manipulation, fecundity, egg size, egg quality, nutritional status, broodstock husbandry and stress and microbial influence. Mating process occur when the female is in soft shelled state just after moulting .While the female in soft shelled, the male of S.serrata were inseminated to the female for mating(Phelan et al,2007). Maturing and spawning in S.serrata species for tropical country shows high incidences of maturation in females appear to be associated with seasonal rain fall. During the spawning, the female mud crab were migrates to the sea to spawn and release their planktotrophic larvae (Vay, 2001). Normally, the duration of eggs to hatch may take 30 to 40 days. Factor that contribute to hatching success are environmental control such as salinity, temperature and photoperiod. Normally, the broodstock were kept in salinity at range of 30-35 g/L for captive maturation and spawning of S.serrata in the hatchery (Mann et al., 1999).Salinity is a one of the factor that can stimulate the hatching rate of mud crab S.serrata. A high hatching rate (93.6 %) of mud crab at salinity of 35 ppt was reported by Rusli et al. (1994) when incubated at water temperature of 29-30 oC. This report also indicated low hatching rate achieved when incubated at salinity 20 ppt to 30 ppt which is hatching rate dropped to 65. 9%-69.6 % .Moreover, Salinity at 15 ppt were lowered the hatching rate (15.2%) and the larvae died within 4 hours after hatching. In the mud crab, egg incubation period is stimulated by temperature in the range of 25 oC and 35 oC. A shorts period of egg incubation of broodstock is 10 days were recorded by Hamasaki (2003) .The temperature were varied seasonally as the broodstock were incubated. Different season has different range of temperature and as increasing temperature in the ranges 20.3-30 oC, the egg incubation period were decreased from 30 day to 10 day. In addition, lower temperature in the range of 18- 22 °C (Mann et al., 1999) has higher hatch rate and larger egg. It seems that temperature can affect the period of egg incubation and hatch rate of mud crab S.serrata. In term of fecundity, mud crab at large size has high fecundity (7.98  ± 1.79 million eggs) with crab size between 146 and 181 mm carapace width (Churchill, 2003).To get a good quality egg ,many factors have been study to determine the egg quality of mud crab. Effect of colour egg and diet were observed by Churchill (2003) to determine a good egg quality. However, the egg colour varies at pale yellow, orange and orange red are not an indicator of egg quality due to indifference of hatch rate. In addition, there is no difference on female size and fecundity was reported on egg quality. Moreover, there have been few studies of diet for mud crab broodstock in effects on larval health and reproductive performance. Millamena et al. (2001) highlighted the importance diet feeding for mud crab broodstock on egg development and larval production. Three difference diets were tested (natural food (mussel and fish), mixed diet (natural food and formulated diet) and formulated diet), each diet is capable to improve maturing and spawning of broodstock mud crab S.serrata. However, Broodstock performance and larval quality were improved when fed with mixed diet. In all treatment, all zoea larvae were successful reared to megalopa when fed mixed diet and the female were ablated. In addition, High fecundity and total zoea were obtained when the female are performed eyes stalked ablation method. Low survival rate of larvae may occur due pathogen and disease from the broodstock. Broodsrtock mud crabs are usually infested with ectoparasite, fouling organism, fungal and bacteria. Leaňo (2002) identified two species of Haliphthoros, namely H. philippinensis and H. milfordensis .Normally, Haliphthoros spp. were founded among broodstock which aborted their eggs prior to hatching. They reported that H. milfordensis was pathogenic to spawned eggs of S.serrata and it was observed the infection rate of H. milfordensis is 2-5 % at two day after inoculation of zoospores with increasing infection rate ( reaching up to 10% ) at five days. While, H. philippinensis is not pathogenic to spawned eggs of S.serrata. Other research on the ectoparasite is Lagenidium. The parasites may infest the recently hatched zoea of mud crab and ended in mass mortality (Prastowo and Wagimsan, 1996) .According to Zafran et al. (1993), Lagenidium grew best at 35oC and tolerated temperatures from 20-40oC and pH from 4 to 11. Fungus can be killed by exposure to 10 ppm formalin for 24 hours and it safe for zoea compare to 20 ppm formalin for 5 hours. To improved survival rate of larval, research on control Lagenidium in mud crab larval rearing has been conducted by Zafran and Taufik (n.d) and Prastowo and Wagiman (1996). Five kinds of fungicide (treflan, malachite green, formalin, potassium permanganate and caltocyn) have been studied in controlling the fungus and their toxicity to mud crab larvae. The minimum effective concentrations of treflan, malachite, formalin and permanganate to inhibit zoospore production were 0.1 ppm, 0.2 ppm 14 ppm and 9 ppm. High survival rate and hatching rate were reported by Prastowo and Wagiman (1996).Healthy zoea were recorded when zoea where treated with mixtures of caltrocyn (1.3 ppm) and treflan (0.02 ppm) in combination with water exchanged at the rate of 50% every three days. Effect of antibiotics (Penicillin G and Polymixin-B) in feeding treatments (rotifers and Artemia nauplii) has been tested by Kasry (1986).From his experiment, Kasry (1986) found that higher larval survival (52.1 %) at zoea 5 were obtained when the larval fed with combination of antibiotics (35 ppt Penicillin G and 7 ppm Polymixin-B), rotifer and artemia at density of 15 individual per ml. Previous studies on the luminescent vibriosis were originally reported in culture shrimp (Penaeus vannamei larvae).It is also a devastating disease in crab larvae. The experiment on the vibrios to zoea of mud crab were reported by Parenrengi et al (1993).They conclude that V. catch, V. alginolyticus and V. Parahaemolyticus are pathogenic to zoea but considered moderate compared to V.harveyii (Boer et al. ,1993; Parenrengi et al.,1993). It seems that zoea is very sensitive to luminous bacteria and it may contribute to the high mortality during early larval stage. Larval rearing Several studies were done in various aspects such as feed, stocking density, feeding protocol, disease and cannibalism to improve the survival of mud crab larvae. Moreover, others species of crab such as Chinese mitten crab (Eriocheir sinensis) in China (Zhang et al. ,1998; Li et al. ,2001), and blue crab (Callinectes sapidus) in Chesapeake Bay (Secor et al. ,2002; Zmora et al. ,2005) has been successful culture at the hatchery scale. Studies on the hatchery scale larval cultures of mud crab were conducted extensively by Australia country begin 1992. Seed stock of mud crab in Australia is dependent on hatchery while the wild seed stock is banned under their management plan in order to control mud crab fisheries. Low survival of mud crab larvae cultures for zoea to megalopa were recorded by Quitino (2001), Fortes (1999) and Nguyen Co Thach (1997) and had survival rate of 10%, 25 % and 1.5% respectively. Feeding and nutrition During the growth and moulting of mud crab larvae, the larvae are going through 5 zoea stages from zoea 1 to zoea 5 and metaphases to megalopa and crablet (Phelan et al., 2007). The hatched larvae leads a planktonic life and when they moult to megalopa stage, they migrated to the estuarine area and grow into adult in estuaries as a benthic juveniles (Vay,2001) .Moreover, early zoea stage shows the digestive system is not well develop and lack of enzyme to support the process of breakdown of food particle (Kumlu, 1999). The early zoea is 1 mm long (Phelan et al., 2007) and occupied with forked tail. The forked tail of larvae is used to capture food and transfer to their mouth (Zeng et al., 1991). During the megalopa stage, the pincher are developed and this development can causes the increasing of cannibalism by grasping among the larvae as survival rate is low (1.55-8%) recorded by Quinitio et al. (2004). Effects of feed and feeding on growth and survival of mud crab larvae have been tested by  several researchers. Yunus (1992) and Wang (2005) found that a higher density of rotifer at 60 ind/mL and 40 ind/ml are required to attain higher survival rates. A study on early feeding has been tested by several researchers such as live Artemia, cryst Artemia, copepod and rotifer. They found that, the early larval stage (Z1 and Z2) were physically weak to search food comparing to Z3, Z4, Z5 and megalopa due to physically active searching food. Currently, survival rate during Z1 and Z2 were improved when larvae fed rotifer. Further, decapsulated cyst of Artemia were tested by Jerome et al. (2005) to improve survival larval at early stage but the result were reported poorly. It seem that a high mortality at Z1 and Z2 due to unsuitable diet size where the size of SS type rotifer (147 ±11  µm) is bigger than size of the mouth opening of Z1 (100  µm) (Setyadi et al. ,n.d). Instead of live feed, there is a development of microbound diets for larval culture of mud crab S.serrata. Currently, the research on the nutritional requirements of S.serrata is limited. May-halen et al. (2006) tested three different microbound diets (fish meal, dried rotifer and dried artemia).The survival rate of megalopa to crablet stage showing lower survival those fed microbound containing dries rotifer and dried Artemia compare to microbound containing fish meal or squid (46.7% to 60.0%). The highest survival of megalopa to crablet was fed live Artemia (80%).Other studies on microboud diet were tested from zoea 3 to zoea 5, a high survival rate and development rate at the zoea 3 to zoea 5 stage (66%) were recorded for larvae fed the 50%:50% combination of microbound diet and Artemia from his experiment .They concluded that the microbound diet particle has a great potential for both zoea and megalopa diet and it is cost-effective for seedling production of mud crab S.serrata. Another factor that contributes to mortality in mud crab larva culture is due to poor nutritional, especially in highly unsaturated fatty acids (HUFA) in live food and cannibalism among megalopa and crablet (Truong, 2008). A study conducted by Suprayudi (2004) showed that the effects of Artemia enriched with eicosapentaenoic and docosahexaenoic acid on survival and occurrence of molting failure in megalop larvae .The larvae were fed enriched Artemia with different type of oil. Enriched Artemia appears to be superior to unenriched Artemia. High survival of larvae can be maintained and accelerating intermolt by provided an optimum EPA and DHA at 0.71-0.87% and 0.49-0.72% for larvae feeding. Further, the finding result on the level of EPA and DHA for survival larval were supported by Mann et al. (2001) as his found there were no significant improvement in larval survival as the mud crab larvae fed enriched Artemia at the levels of EPA (39 mg/g) and DHA (15 mg/g) .Moreover , Mann et al. (2001) found that the phospholipid is one of the nutritional component need to study in effect of survival of mud crab larval .Currently ,there are no study on phospholipid in the diet of mud crab larvae. Another report by Suprayudi et al. (2002) where indicated that survival rate of S.serrata increase with the increase of the total (n-3) highly unsaturated fatty acid (ÃŽ £ (n-3) HUFA) content of rotifers. From his experiment, Suprayudi et al. (2002) found that the total (n-3) highly unsaturated fatty acid (ÃŽ £ (n-3) HUFA) in rotifer can be increase from 3-5 mg/g to 7.6-8 mg/g. In term of survival for each larval stage, Suprayudi et al.(2002) found that high mortality through the moult to megalopa to first crab were recorded after fed boosted rotifer at 31 mg/g ÃŽ £(n-3) HUFA. Other research on the boosted rotifer indicated that a high mortality at metamorphosis to megalopa with fed boosted rotifer containing ÃŽ £(n-3) HUFA levels above 6 mg/g(Hamasaki et al. ,2002 ) .It seem that the specific (n-3) HUFAs may be more important for growth mud crab of mud crab larvae To improve survival rate of zoea and larvae nutrition, Suprayudi et al. (2004) examined the effect of essential fatty acids (EFA) on the survival, development and bioconversion of fatty acids in mud crab S.serrata larvae. From his experiment, he found that the content of EFA in Artemia were strongly influenced the survival of mud crab larvae compared to rotifers. They found that EFA deficiency were reported at each larvae fed unenriched Artemia, enriched Artemia and enriched rotifer, indicating that DHA was superior to that of EPA. They conclude that mud crab larvae have a limited or negligible capability to convert C18 unsaturated fatty acids to highly unsaturated fatty acids. Disease of mud crab larvae Bacteria infestations are major problem for rearing larvae and contribute high mortality. Studies on the bacteria profile in rearing water with Scylla serrata larvae was noted high mortality from zoea 5 to megalopa due to the increase in luminescent bacterial load in the larvae (Quitino, 2001). Further, protozoa can contribute high mortality during egg and larval stages. This protozoon has an ability to interfere with gas exchange that blocked respiratory surfaces of the egg and larvae (Lavilla-Pitogo et al., 2004). Although these organisms do not invade the underlying tissues, they make it difficult for the affected larvae to move and to feed. Cannibalism Cannibalism behaviour of mud crab larvae indicated high mortality when metamorphosis from megalopa and crablet stage. Study by Juliana (1999) showed that high survival at crablet stage when reared with mud substrate and without shelter. Crablet were tested with different treatment such as coconut leave, mangrove twigs and mud substrate. In addition, asynchronous moulting of mud crab larvae is a one of the factor that contributed to the increased mortality during zoea 4 and zoea 5 (Quinitio, 2001). Water quality parameter The optimal condition in rearing mud crab larvae has been conducted in China, Vietnam, South Africa and Australia. Parameters that have been studies are temperature, salinity and total ammonia. The early larvae has a ability to tolerate with range temperature between 25 oC to 30 oC but shorten their development time when reared at a upper temperature ( 29-30 oC) (Dat ,1999; Li et al. ,1999; Quinitio et al. ,1999; Mann et al. ,2001; Quinitio et al. ,2001). In addition, the highest survival rate and growth rate were recorded when the larval reared at higher temperature ranged 28.5 oC to 31 oC and the minimum were recorded when the larval reared at low temperature ranged 22-24 oC (Marichamy, n.d). The optimal salinity for all larval stages larvae are 27 ppt to 31 ppt (Gui-Zhong, 2005).Other experiment on the optimal salinity for larval rearing was observed by Marichamy (n.d).From his experiment, he found that the optimal salinity for larvae rearing was 35 ppt with the highest production of larval and poor survival when reared at the lower salinity (32-33 ppt).However, high salinity at 36 ppt were not suitable for larval growth. To improve survival of zoea, Baylon (2001) were investigated the effect of salinity on survival and metamorphosis from zoea to Megalopa of the mud crab S.serrata. Each of larval stages (Z1, Z2, Z3, Z4, and Z5) of Scylla Serrata was tested with different salinity (12, 16, 20, 24, 28 and 32 ppt) and different salinity regime. In all treatment, highest metamorphosis to megalopa occurred where salinity was constant at 32 ppt. Further, there is no significant difference on the duration of development of the surviving larvae in all salinity regimes. Other factor that contributes to high mortality is ammonia. However, there is a few research has been conducted on the ammonia tolerance in mud crab larvae. Churchill (2003) tested concentrations of total ammonia ranged (NH3 and NH4 +) ranged from 25 ppm to 450 ppm at 25 ppm intervals. They concluded that S.serrata larvae are highly tolerated with high levels of nitrogenous waste. From the stress test ammonia, the optimum concentrations of total ammonia for zoea mud crab are 20 and 30 mg/l where the zoea activity was remained normal during total ammonia test. Currently, there is no research has been conducted on the tolerance of Scylla larvae to extremes in pH and oxygen concentration. Culture systems Attempt to develop techniques for mud crab (S.serrata larvae) culture system has been made since 1999. Most of the culture systems were adapted from culture shrimp (Penaeus vannamei larvae) system. Currently, there are three different culture system have been used in larvae rearing ranged from exchanged of water system, mesocosm system and green water culture system. To control water quality during the larvae rearing, exchanged of water were done by either a constant flow-through basis, or by draining or siphoning 50-85% of the tank volume daily and replacing it with clean seawater, or by recirculation a biofilter (100% every 2-3 hours) (Nghia et al. 2001).Under green water culture system ,the water were not exchanged for the first three day .Thereafter, water exchange is slowly increased from 10-20% per day for Z2-Z3 to between 40 and 50% per day at the end of the rearing cycle (Z4-M) (Mann et al. ,1999 ;Quinitio et al. ,2001). For the mass culture,mesocosm system has been used in Japan where the tank are partially filled with green-water at Z1 (20-25% volume. As the larvae metamorphosis to Z2 and Z3 stages, clean seawater were used instead of green water and the water exchanged on flow-through basis (Hamasaki et al., 2002) during the Z4 and M stages. To improve water quality on the bottom of tank, dead larvae and uneaten food that accumulate on the tank bottom are daily siphoned out of rearing vessels (Quinitio et al., 2001; Baylon and Failaman, 2001) and care must be taken to avoid siphoning out larvae which have sunk to the bottom of the container. Another problem during larvae rearing is a development of biofilm on tank sides .A high survival were achieved when the biofilm was removed daily (Williams et al., 1998).In addition, improper cleaning the biofilm can release large amounts of bacterial flock into the water column. Green water culture system is functioned by provide the larvae with microalgae such as Tetraselmis, Skeletonema, Chlorella, Nannochloropsis, Chaetoceros and Isochrysis at densities ranging from 5104 to 5105 cells/ml (Djunaidah, et al. ,1998; Dat ,1999; Mann et al. ,1999; Williams et al. ,1999; Zeng and Li ,1999; Mann et al. ,2001; Quinitio et al. ,2001) in order to increases survival and to serve as food for rotifers and Artemia. However, there is not scientific study on the effect of background algae on larval survival and growth of mud crab S.serrata. Basically, the mud crabs inhabit a turbid estuaries and it seems to require phase. However, there is no significant effect on survival between 12 and 18 hour photoperiods (Nghia et al. ,2001).Further, there is a experiment on the effect of tank colour (black, dark green, maroon, sky blue and white) on larval survival and development of mud crab Scylla serrata .From his experiment, Abed Golam et al.(2005) found that a higher survival and shorter development of zoea were recorded in darker colour background compare to white background .Moreover, the larvae where reared with black background have more efficient feeding as reduced settlement on the bottom of rearing tank. They concluded that background colour was significantly affecting larval survival.

Sunday, January 19, 2020

Respecting Teachers Essay

Gender differences are beginning to appear in the content men and women are downloading to their mobile phones. Games are mainly downloaded by men, while women are leading the current craze for ringtones. The findings form part of a quarterly survey of mobile usage commissioned by mobile marketing firm Enpocket. The research also found that 3G video is slowly growing, though services are only being used by a small proportion of UK mobile phone owners. Less than 3% use 3G, up from just 1% a year ago. The research also found that 3G video is slowly growing, though services are only being used by a small proportion of UK mobile phone owners. Less than 3% use 3G, up from just 1% a year ago. Young audience Mobile gaming is proving more popular, with 1.9 million people (5.8%) downloading a game to their phone in the last three months. It is predominantly men – 58% – that are keen to play games on their phones, with the majority being under 34. Young women on the other hand are getting into ringtones. They make just more than half of the 5.9 million people who downloaded a ringtone to their phone in the previous three months. Most pop hits are available as ringtones, costing between  £1.50 and  £3.50 per download. It is estimated that  £70 million worth of ringtones were sold in 2003. They are becoming so popular that accountancy firm KPMG is to release a fortnightly chart on the 20 most popular ringtones. The fact that people are prepared to spend money and time downloading content to their mobiles is great news for mobile firms. â€Å"Mobile owners are getting to grips with the more advanced features on handsets, beyond SMS,† said the chief executive of Enpocket Jonathon Linner. There are some things for companies offering 3G services to ponder though. As well as the low number of people using existing services, the survey found that less than 40% of those that own a 3G handset were actually using 3G services.

Saturday, January 11, 2020

Cyber war Vs Cyber terrorism Essay

In this time and era, we have witnessed the emergence of electronic resources as the most important development of the modern day communication system. Technologies such as cellular phones, home computers, the internet and websites have added another dimension to the way we live our lives today. This presentation seeks to address and analyse the negative and positive aspects in view of the introduction of computers and telecommunications techniques as follows: Firstly, it raises awareness with regard to the new age of crimes, termed as cyber crimes. The paper focuses, in particular, on the difference between the two common types of cyber crimes, cyber war and cyber terrorism. Secondly, the paper examines the limitations and impact of having graduates through e-learning. Thirdly and lastly, the paper discusses on whether computer practitioners should be required to have a practicing license as it is with other professionals such as doctors, lawyers and teachers. 1. (a) Difference Between Cyber War and Cyber Terrorism The end result of both cyber war and cyber terrorism is the same, to damage critical infrastructures and computer systems. The major difference being  that cyber war is launched by governments whereas cyber terrorism is launched by individuals or a group of individuals. Cyber war, often done in conjunction with traditional military attacks, is an organised attack by one nation against another nation’s information and communication systems with an aim of gaining an advantage over the enemy by disrupting their ability to fight back. Cyber war attacks often targets an enemies systems such as command and control systems, intelligence collection and distribution, information processing and distribution, tactical communication, troop and weapons positioning and so on. For instance, when the United States of America invaded Iraq, they disrupted the country’s communication and defence systems, crippling their ability to find and take down US aircrafts. On the other hand, cybe r terrorism is when individuals or terrorist groups use computers, computer networks and the internet against persons or property to intimidate or coerce government, civilians, society in order to reach political, religious or ideological agenda. The things that are targeted are power plant systems, telephone systems, transportation systems, water or oil pipelines, financial institutions and so on. ([online] Available at: community.mis.temple.edu/mis2901001†¦[Accessed 5 April 2014]) Cyber terrorism takes many forms. One of the more popular is to threaten a large bank. The terrorist hacks into the bank’s system and then leave an encrypted message for senior directors demanding for a sum of money. If the bank does not cooperate, the terrorist threatens to use anything from logic bombs to electromagnetic pulses and high-emission guns to destroy the bank’s files. Most banks would rather pay the money than have the public know how vulnerable they are for fear of loss of business. ([online] Available at: csciwww.etsu.edu/../cases.htm [Accessed 6 April 2014]) One practical example is where banks in Zambia have lost an estimated US$4 million to cybercrime through Automated Teller Machines (ATMs) withdrawals. This was reported in the local Post newspaper dated 14 June 2013. This was after the state police discovered a scam in which three foreign criminals had recruited and trained Zambians in cyber-crime. ([online] Available at: www.postzambia.com/post-read †¦article [Accessed 6 April 2014]) Cyber terrorism can also include terrorists getting secret data from defence files, network with other terrorists, or raise and manage funds for terrorism by hacking. (b) Limitations and Impact of Having Graduates   Through E-learning E-learning has become an increasingly popular learning approach in higher educational institutions due to the rapid growth of internet technologies. Many foreign renowned universities offer all types of programmes ranging from Bachelor, Master and PhD programmes, to Short Courses. Essentially, emerging evidence suggests that having graduates through e-learning has substantial beneficial impact on social and economic development of our societies today and includes the following. It has enhanced skills development to would be graduates and their countries to cope with the demands of the 21st century where rapid change and globalisation is taking place. For instance, graduates have acquired an improved ability to conduct independent research, think critically to solve problems through the use of e-technology to communicate and collaborate. It has lead to an increased student turnover because of its flexibility and cost effectiveness and hence has broadened educati onal opportunity for many, especially financially disadvantaged students and those with disabilities. This has resulted in an increased human resource base and enhanced economic progress from direct job creation in the technology industry as well as from developing a better educated work force, much needed in developing countries such as Zambia. Online access promises a new access route for millions of students. This new approach of learning facilitates different students at different continents to attend the same classes almost at the same time. It has brought about improved learning methods and teachers have a more positive attitude towards their work and are able to provide personalized learning. On the other hand, although e-learning has brought about many benefits for students and organizations alike, it also has its limitations. In order to perform the tasks required by system, an e-learning environment requires basic state of the art equipment and minimum level of computer skills. Thus, a student that does not have the minimum computer knowledge, or have access to these equipment is disadvantaged and will not succeed in an e-learning program. Certain subjects, such as sports and public speaking, require physical exertion and practice. Thus, they cannot be applied in an e-learning environment. Needless to say, it can be a useful companion to traditional education for teaching backgroun d and technical information. A successful e-learning program requires students that are well organised, self motivated and have  good time management skills. In other words, an e-learning program is directly related to the amount of effort applied. Successful e-learning students are able to study independently and incorporate study time into their busy lives. Students that lack discipline and are not good at time management are disadvantaged and will not succeed. E-learning requires good reading and writing skills. Most activities and communications are written, and thus, the ability to efficiently interpret instructions is a critical skill to a successful e-learning program. Students that are not comfortable with the ability to express themselves through writing will not succeed in e-learning. 2. Are computer practitioners similar enough to other professionals that they should be required to have a License too? Licensing is not currently required for computer practitioners but is being considered by several professional computing organizations and is believed, in principle, as necessary as the certification and licensing of doctors, lawyers, teachers, hairdressers and other professionals. The question of licensing professional s in general is a very controversial and political question. Licensing generally means that to practice a certain profession requires a government licensee, usually administered through a professional organization. The general theory of licensing professional is that it is supposed to help the general public outside the professional to be assured that someone else is capable of doing certain jobs. For instance,  one of the top e-learning institutions, the University of Liverpool in conjunction with Laureate Online Education offer 41 distance learning courses from a wide area of disciplines. The notion that degrees through e-learning are perceived not to be as rewarding or valuable as full-time traditional degree has been proved not to be the case. In fact, in the late 1990s, the Quality Assurance Agency for Higher Education of the British Government measured academic excellence in more than 100 universities, including the Open University. Surprisingly, the Open University was ranked in the top ten of British Universities in terms of academic excellence. The only underlying difference between a traditional degree and e-learning degree is the manner in which information is conveyed. The traditional setup has been based on a face to face communication where students and lecturers are brought together at the same time and the same place in classes,  laboratories and recreation centers for the purpose of learning, whereas in e-learning systems use technology to separate the learner from the teacher, and the learner from the learning group while maintaining the integrity of the learning process. Follow up statistics placing the Open University in the top 10 with Oxford and Cambridge have been repeated for several years and cannot be statistically be explained as a mere coincidence. ([online] Available at: http.//www.webbasedtraining.com/ [Accessed 3 March 2014]) The main focus of this presentation is to gain insights into critical issues confronting two major stakeholders in the new era of WBT, the student and faculty. The question at hand requires objective views on the advantages and disadvantages of WBT from a student’s point of view as well as advantages of WBT from the college’s point of view. It further requires identifying ways that studying from a website is better than studying from written text as well as discuss in details the social and economical benefits and limitations of E-technology in Zambia. Systems Development Life Cycle The second part of this presentation discusses a linier Systems Development Life Cycle (SDLC) which is a technique used to assist developers effectively develop information systems. ‘Gaining competitive advantage and improving information delivery will urge an organization to restructure its activities. The information system has to be developed to suite the business scenario and objectives. It needs to be carefully planned and activities well thought of.’ (Ndhlovu, 2009). Thus, in an effort to answer the question at hand a description of the stages involved in a SDLC using annotated diagram shall be discussed. In addition, the discussion shall also include a description of techniques which can be used to investigate the existing system of an organization identifying the advantages and disadvantages of each and also give an alternative to SDLC for developing systems. Having said that, details of the mentioned topics in question is as follows. a) Web-Based Training Advantages and Disadvantages of WBT: Student’s Point of View Advantages Utilisation of the World Wide Web is a current and extensive source of  information and relatively easy to use. Some of the advantages from a student’s point of view include the following. There is unlimited source of information on the internet as compared to textbooks and class lectures as it provides a variety and quality of learning materials. Encountering a new experience of sourcing information on the web increases a motivation to learn among students. For example, the web allows browsing from one link to another on a particular subject or topic Access to meaningful resources foster critical thinking skills and allows the student to see new ways of interpreting and evaluating information. For instance, gathering view points and knowledge from various internet sites cause students to debate previously held values and ideas which they may have had misconceptions. Gain of competence with technology by learning to navigate and use the web successfully, apply computer skill s, use of conferencing tools such as e-mail and listservs. Integration of technology with content-related work provided a more meaningful interaction with the subject matter. For example, students reflected on the lack of relevance in acquiring computer skills in isolation noting that when combined with content, those applications become a tool to improve learning in their field of study. Technological aspects of course assignments encourage cooperative dialogue rather than isolation. For example, e-mail and listservs are used regularly providing a valuable resource for support and collaboration among classmates for help in completing assignments, support with technological frustration and to share acquired skills or content resources. In addition, e-mail communication with instructors gives a student individual attention that is not apparent in a traditional coursework setup. E-mail utilization has many assets that face-to-face classroom contact lacks. For example, student need not wait for class time in order to get or clarify a piece of information. The student who would normally shy away and not ask a question in class or participate in a class discus sion are more comfortable using e-mail as a medium of communication and thus is not left out on the much needed information. For the student, online course allows them to integrate work, family and school more efficiently as it eliminates travel time to and from class for commuters. Disadvantages The positive aspects of WBT are countered with some frustrations that are  experienced by some students. These include the following. Student lack of computer skills, internet server being down, difficulty in accessing computer, use of obsolete computers and lack of technical and instructional support are some of the frustrations that a student may encounter. Required assignments are time consuming as mastering computer application tools and learning to navigate the web efficiently take up most of the time. Advantages of WBT: College’s Point of View Higher education is evolving, consumer needs are shifting, and competition for students is increasing. Consequently, institutions must be driven to some extent by the needs and demands of the consumer. To satisfy the unique needs of growing numbers of nontraditional students and to make graduate degrees more attractive and feasible, the availability of online courses and distance learning opportunities is essential. Most of the faculties consider technology applications in university courses as the wave of the future citing their main reason for wanting its continuity as mainly being the benefits they believe their students receive. Moreover, in this time and era, a faculty member who does not use technology is often considered out of date and out of touch with skills that are needed for the coming millennium. Faculty respondents consistently identified convenience and improved learning as advantages for students enrolled in Web-based instruction. Other advantages identified by facul ty are as follows. Students gain knowledge on how to use numerous technology-based applications such as e-mail, PowerPoint, listservs, graphics programs, and HTML, many of which are considered essential skills for today’s workforce. Students also gain comfort with the medium, anxiety levels are reduced, and they are more willing to explore the potential of technology applications. Students tend to become independent learners, are more motivated to explore related topics on their own, and develop critical thinking skills. The quality of completed assignments is often better than in the traditional classroom because students have more time for reflection and better access to resources. More information can be included in a course with the potential for students to expand on the information received by providing links to related sites. Many students will click on a link more readily than obtaining a print resource identified in a bibliography. Students learning how to access the extensive  resources available on the WWW, online databases, and other technology-based resources. Student convenience. For example, online classes provide students with 24-hour access, eliminate the need to travel or find parking, and eliminate scheduling conflicts with jobs or family. These advantages may particularly benefit graduate students and nontraditional students. Connecting s tudents with technology allows the student to become part of a global community. Information and ideas can be exchanged with other students and experts throughout the world using e-mail and listserv discussions. Collaboration and communication among students are fostered, as well as communication between instructor and student. Online Studying Vs. Written Text Studying Among the several ways that studying from a website is better than studying from written text three distinct ways include the following. Text books become outdated almost immediately after publication and cannot be updated until the next publication which may take several years down the line. Information on the website can be updated daily and printing errors are corrected immediately. Written text is limited to the information on the page whereas educational websites can link to an infinite number of other educational sites to give supplemental detail in as much as possible on a particular subject or topic. Textbooks are limited to the points of view of their authors whereas the website allows multiple view points, which is essential for critical thinking especially if the author is too vague about a particular topic. ([online] Available at: English.varsavskyfoundation.org/education [Accessed 7 March 2014]) b) Social and Economical Benefits and Limitations of E-technology in Zambia Zambia is one of a number of countries in the Southern African region that have sought to include e-technology in its national development plans. E-technology is believed to contribute to improving development outcomes in two main ways: E-technology-based knowledge and products contribute directly to wealth creation. The use of e-technology contributes indirectly to national development through its impact in social and economic sectors such as agriculture, health and education, and by empowering individuals to take advantage of new opportunities. For example,  AfriConnect, in partnership with the Zambian Ministry of Education, have been piloting a project aimed at bringing web-based e-learning to schools in different parts of the country. The objective is to move from the traditional chalk-and-talk pedagogy to enquiry-based learning, while at the same time bringing the option of lifelong learning to people who have already left school. Individuals also benefit from the availability and use of e-technology in a number of ways. For example, by substituting phone calls for travel, which saves time and money, and by using e-technology to obtain information on prices, for their own produce and for purchases. In these various ways, e-technology can have a significant impact on a country’s ability to achieve the Millennium Development Goals (MDGs). There are, however, also constraints on the potential impact of e-technology in many developing countries. These constraints include inadequate technical infrastructure, limited human skills to use available networks and services, the relatively high cost of communications equipment, and poor policy and regulatory environments. These factors reduce the scope for countries and communities to realise the potential of e-technology for development. Question 2 Solution (a) Model of the Systems Development Life Cycle highlighting the maintenance PhaseThe systems development life cycle (SDLC) is a conceptual model used in project management that describes the stages involved in an information system development project, from an initial feasibility study through maintenance of the completed application. In general, an SDLC methodology follows the following steps: 1. Planning Stage The existing system is evaluated. Deficiencies are identified. This can be done by interviewing users of the system and consulting with support personnel. 2. Analysis Stage The new system requirements are defined. In particular, the deficiencies in the existing system must be addressed with specific proposals for improvement. 3. Design Stage The proposed system is designed. Plans are laid out concerning the physical  construction, hardware, operating systems, programming, communications, and security issues. The new system is developed. The new components and programs must be obtained and installed. Users of the system must be trained in its use, and all aspects of performance must be tested. If necessary, adjustments must be made at this stage. 4. Implementation Stage The system is put into use. This can be done in various ways. The new system can be phased in, according to application or location, and the old system gradually replaced. In some cases, it may be more cost-effective to shut down the old system and implement the new system all at once. 5. Maintenance Stage Once the new system is up and running for a while, it should be exhaustively evaluated. Maintenance must be kept up rigorously at all times. Users of the system should be kept up-to-date concerning the latest modifications and procedures. (b) The systems development life cycle (SDLC), also referred to as the application development life-cycle, is a term used in systems engineering, information systems and software engineering to describe a process for planning, creating, testing, and deploying an information system.[1] The systems development life-cycle concept applies to a range of hardware and software configurations, as a system can be composed of hardware only, software only, or a combination of both.[2] The waterfall model is a sequential design process, often used in software development processes, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of Conception, Initiation, Analysis, Design, Construction, Testing, Production/Implementation, and Maintenance. What is systems development life cycle (SDLC)? (SDLC is also an abbreviation for Synchronous Data Link Control.) The systems development life cycle (SDLC) is a conceptual model used in project  management that describes the stages involved in an information system development project, from an initial feasibility study through maintenance of the completed application. Various SDLC methodologies have been developed to guide the processes involved, including the waterfall model (which was the original SDLC method); rapid application development (RAD); joint application development (JAD); the fountain model; the spiral model; build and fix; and synchronize-and-stabilize. Frequently, several models are combined into some sort of hybrid methodology. Documentation is crucial regardless of the type of model chosen or devised for any application, and is usually done in parallel with the development process. Some methods work better for specific types of projects, but in the final analysis, the most important factor for the success of a project may be how closely the particular plan was followed. In general, an SDLC methodology follows the following steps: 6. The existing system is evaluated. Deficiencies are identified. This can be done by interviewing users of the system and consulting with support personnel. 7. The new system requirements are defined. In particular, the deficiencies in the existing system must be addressed with specific proposals for improvement. 8. The proposed system is designed. Plans are laid out concerning the physical construction, hardware, operating systems, programming, communications, and security issues. 9. The new system is developed. The new components and programs must be obtained and installed. Users of the system must be trained in its use, and all aspects of performance must be tested. If necessary, adjustments must be made at this stage. 10. The system is put into use. This can be done in various ways. The new system can phased in, according to application or location, and the old system gradually replaced. In some cases, it may be more c ost-effective to shut down the old system and implement the new system all at once. 11. Once the new system is up and running for a while, it should be exhaustively evaluated. Maintenance must be kept up rigorously at all times. Users of the system should be kept up-to-date concerning the latest modifications and procedures.