Library Research Assignment Essay Example | Topics and Well Written Essays - 750 words

Library Research Assignment - Essay Example Utilizing this plan of action, the organization can offer its items to the clients present in various pieces of the world. A suitable plan of action is one of the key necessities in redesigning an organization to the universe of online business. Advantages of the Website for the Company E-Business implies maintaining a business utilizing web advances so as to improve the degree of benefits, just as to extend the business. In today’s universe of rivalry, it has become the need of each retailer to have online nearness to expand the degree of deals. In such manner, site assumes the job of the most significant player as it is the principle approach to make individuals mindful of the items and administrations being offered by the organization. As Holub (2005) declares, â€Å"one of the least demanding approaches to enable your business to acquire introduction and potential clients is to have an expertly evolved website† (p. 1). Our organization, beginning to end Laptops, wil l likewise utilize a site for showcasing purposes. The organization will have an alluring site which will be put on the most well known web indexes, for example, Yahoo and Google so as to be accessible for general clients in a helpful way. The site will play out all key business tasks that incorporate promoting, deals, client assistance, and inner interchanges. The site will likewise diminish the need of having a physical area for exchanging. A completely planned and easy to use site will give a great deal of advantages to a to z Laptops. A portion of these advantages incorporate expanded volume of deals through drawing in more clients, improved and proficient client support, expanded business validity, and diminished business working expense. Advantages of Internet for the Company Some of the fundamental advantages of web for a to z Laptops incorporate web promoting to empower the business arrive at universal markets, online correspondence framework to serve customers’ inqui ries, and email framework to improve client support. A to z Laptops can utilize numerous strategies to offer its administrations to the clients. The absolute most well known ways incorporate characterized advertisements, web showcasing, selling through company’s site, and email promoting. Online advertisements and advancements hold a key spot in web showcasing. Start to finish Laptops can utilize advancement strategies and promotions put over celebrated sites and web indexes to make individuals mindful of the results of the organization. The organization can likewise utilize messages as an immediate showcasing instrument. As Williams (2012) states, â€Å"e-mail promoting is the most seasoned strategy to arrive at the possibilities and keep up generosity in the market† (p. 1). The company’s authorities can utilize messages to send relationship-fabricating and customized messages to the focused on populace. A significant advantage of direct showcasing is that it d iminishes promoting costs (Ojha, 2012). The organization cal additionally utilize interpersonal interaction sites to improve the procedure of socialization and increment open mindfulness about new advancements. Such sites are an extraordinary method to arrive at an enormous number of individuals (Hawkins, 2012). Utilitarian Specifications The key electronic business procedures of start to finish Laptops will incorporate web advertising, electronic preparing of request, and electronic client assistance. We will set up our contacts with the online providers of the PC embellishments and workstations to guarantee arrangement of things to clients on the due date and time. We will place a connection in the

Auditing Assurance Services organization †Myassignmenthelp.Com

Question: Examine About The Auditing And Assurance Services Organization? Answer: Presentation According to the contextual analysis the assessment of the review or a work of a reviewer was disclosed to Jason. The inspector is an individual who is named by the association and who offers an autonomous input about the companys budgetary structure. The reviewer checks whether the money related measures and detailing of the considerable number of norms are given by the organization. The evaluator helps in the getting a genuine reasonable and autonomous perspective on the financials of the organization. It acclimates that the monetary position, the cost sheet and the activity of the organization are in congruity with the different standards and principles of bookkeeping. Getting Audit A review is the comprehension of the assessment of the all the financials of the organization. The report of the evaluator is appeared in the yearly report and marked by the reviewer. The monetary report incorporates the asset report, the incomes and changes in the value position and the salary articulation and the benefit and misfortune .The reason and the purposes behind doing review is to frame a view whether the data introduced in the report will mirror the money related situation of the association or the organization (Arens et al., 2016). The inspector looks at the money related report and what the reviewer must adhere to and the examining norms set by the Government organization. When the examiner finished the work they will give the report clarifying the conclusion drawn from the work. Getting Auditor Inspectors are the individual named to talk about the extent of the review work with the association, the board and the executives may demand for extra strategies to be followed. Examiners keep up an autonomous type of work and along these lines they structure a judgment which is free, valid and reasonable picture. Examiners will decide the inspecting methodology the errand they will perform contingent upon the techniques that they will perform. The degree of the review methodology and the dangers recognized. The methods are composed just as the oral inquiry which is posed by the evaluator to the organization, and the inspector looks at monetary and bookkeeping records (Arens, Elder Beasley,2014). Idea and how sensible confirmation is shaped The reviewer draws in himself to render the sentiment on whether the companys budget reports are well and genuinely spoke to as per the materials and the fiscal summaries and revealing is done appropriately. The review is something which help people in general and the partners of the organization to come to think about the genuine image of the association, along these lines the loan specialists and speculators have the trust in the fiscal summaries of the association (Cohen, J. R. Simnett, 2014). Evaluator can't give total confirmation So as to frame a sentiment, the inspector accumulate different inside data which is proper and sees until increasing sensible affirmation. The examiner will at that point structure supposition with regards to the see whether the budget summaries are liberated from any blunder or adulteration or material misquote which causes extortion and in this way making mistake free undertaking. The significant inspecting standards are as per the following: Asking about the administration that will help in increasing a comprehension of the association and its capacities and money related detailing and the mistakes happened Assessing the financials and the interior control framework Performing systematic procedure and the difference for account adjusts of the exchanges Affirming about records receivable with the records with the outsider Toward the finish of review, the reviewer will offer guidance for improving budgetary answering to boost the presentation (Knechel et al.,2016). Idea of Professional Skepticism Proficient Skepticism implies a scrutinizing mind which is a mentality of being alert with the goal that the conceivable misquote because of mistake and extortion confirmations given by the inspector. The inspector is somebody who is wary as of late and crafted by the reviewer is to discover blunder and furthermore give the confirmations by the evaluator. The evaluators expertise is set by: The activity for proficient judgment and review quality Improving the viability of review technique Decreasing the chance of mistake Choosing proper review methodology (Louwers et al., 2015). Misconstrue review results Neglecting abnormal conditions The chiefs consistently attempt to give a misleading picture and the money related data about the organization and along these lines the figure probably won't be right accordingly the inspector gives a free perspective on the association and in this way makes the audit of the association in order to portray a right and genuine image of the association (William Jr et al., 2016). References Arens, A. An., Elder, R. J., Beasley, M. S., Hogan, C. E. (2016). Inspecting and affirmation administrations. Pearson. Arens, An., Elder, R., Beasley, M. (2014). Inspecting and affirmation benefits A coordinated methodology; incorporates inclusion of worldwide norms and worldwide examining issues, notwithstanding inclusion of. Boston: Aufl. Cohen, J. R., Simnett, R. (2014). CSR and affirmation benefits: An exploration motivation. Evaluating: A Journal of Practice Theory, 34(1), 59-74. Knechel, W. R., Salterio, S. E. (2016). Inspecting: Assurance and hazard. Taylor Francis. Louwers, T. J., Ramsay, R. J., Sinason, D. H., Strawser, J. R., Thibodeau, J. C. (2015). Inspecting affirmation administrations. McGraw-Hill Education. William Jr, M., Glover, S., Prawitt, D. (2016). Examining and confirmation benefits: A precise methodology. McGraw-Hill Education.

Asian American, Gifted Example

Asian American, Gifted Example Asian American, Gifted â€" Article Example > Asian American, GiftedIntroductionGifted children are endowed with abilities that are not normally found in children of their age group. Some of these abilities come as a special development of faculties far in advance of their ages. In certain cases gifted children also tend to suffer from Autism, or Dyslexia and other form of imbalance. They may thus have special skills in one area which is overshadowed by lack of development in another. Gifted children have special requirements in education, training and care. In the case of Asians who are now American citizens, the needs of the gifted children are complex as compared to the needs of native born American children. The issue is complex because Asian culture, language and communication are vastly different and even though the family is oriented well enough to adjust to the US environment, normal interactions in the case of gifted children from these countries differ. The method of identifying such children have to be revised and a unique method of assessing their potential closely linked to the culture and way of responding has to be evolved. Many factors, such as language, specific religious faith, cultural taboos and parental confusion will add to the problem of first identifying gifted children and then tailoring a program to suit them. The second objective would be to evolve a system that coaches and trains parents to help the children cope with the demands of the child and the education proposed to be given. This is a situation which requires multiple entity participation like the parents, the teachers and education experts who will eventually deal with the child, and the environment creators and facilitators who will support the programs intended for the children. While Native American children can cope with the available system, as they are born into it or otherwise accustomed to the information delivery system, their parents and educators are comfortable with dealing with them. In their case it is just advancing the child through a series of steps before time, like promoting to the next grade, skipping two semesters etc. In the case of Asian children, this can have negative ramifications because skipping a semester and advancing the child to another set of classes which he is suited for has an uprooting feeling. Feelings and EmotionsOne important thing to remember is that gifted children also have simple needs that have to be met just like other children of their age. Except for the fact that they are able to assimilate and transform information faster the biological social and psychological needs of these children are the same as those of their contemporaries not endowed with special skills. This is often overlooked. In the case of Asian children the needs vary largely from other communities. Asian children follow a typical lifestyle inherited from the community in their original homeland. Some requirements of their culture and psychological factors learned or given to th em by the system they inherit from their parents may be at tangent to the prevalent atmosphere they find themselves in, especially if they are treated as ‘special’.

Ways of Computing the Value of Alternative Projects Essay...

Ways of Computing the Value of Alternative Projects When deciding whether to invest in a project an investor first will compare investment or sunk costs to the expected profit and based on this decision will decide what to do. Depending on the specifics of the project calculating of sunk cost and expected profit might be rather different and will play the main role in the decision to invest, wait and invest later or not to invest at all. More detailed consideration of the standard NPV rule: to invest if present value of cash flow is greater than sunk cost will show that some projects cannot be simply estimated using this idea. For the irreversible projects such as building a factory or buying an option NPV method may not be proper†¦show more content†¦Now, consider the factory that can produce some product. There is F=100 the sunk cost of building the factory and the price of the product is P=$10 today. In a year there are two possible options: the price will go up to $15 with probability 1/2 or will go down to $5 with probab ility 1/2 and then stay at these levels. Let us calculate net present value of the project if invested today (expected price will be $10, because 1/2 ·15+1/2 ·5=10 and the interest r=0.1 for easy calculations): NPV=-100+Ó0[10/(1+r)t]=$10 notice that in this case we have summation from 0 to infinity because the process starts on the step one, it means we invest in project right now. Using our parameters we can see that NPV if invested today is equal $10. Now let us calculate net present value, but in this case we do not invest right now, but wait and invest only if the new price is 15, which happens with probability 1/2: NPV=0.5[-100/(1+r)+ Ó1[10/(1+r)t]]=$30 we have to discount the value of the sunk cost and also sum not from zero as in the first case but from 1, since we wait for a year. Thus, we can see that NPV if we wait is bigger by $20, this value is the value of flexibility or option to wait. The same thing can be computed for three-step process and more. Now we can see the difference in the calculations and gain if we wait. This gives an investor new option - to wait and gather information, so his expected profit will be higher. Of course, theShow MoreRelatedEssay On ECS1383 Words   |  6 PagesOCA is best positioned and qualified to stand up ECS: Cloud computing overview Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computer resources (e.g., networks, servers, storage, applications and services) tha can be rapidly provisioned and released with minimal management effort or service provider interaction. 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Agriculture industry is one example of industry that will benefit from this computer-to-computer communication, and produce long-term economic value for mid class farmers. In conclusion, for those internationally orientated SMEs who aspire to be at the cutting edge of technology, and for those SMEs who want to fully derive benefits from business opportunities across national borders no matter inRead MoreDesigning A Data Centre Topology Architecture1648 Words   |  7 Pagesarchitecture. †¢ Resilience – should be designed for high availability of the distributed cloud services that it carries and with â€Å"zero-downtime†. †¢ Automation – should support SDN for automated per minute consumption of capacity and automated failover to alternative paths. †¢ Scalability – support future growth without the need to redesign – ie by adding additional nodes with a simple building block approach 9.1.2. IP and Optical Networks implementation architecture options Simplification of our IP networks

What Foucault Calls `` Bio Power `` Essay - 1546 Words

What Foucault calls â€Å"Bio-power†, an institutional power of the life and death of the human species, a long-term result of the 17th century Cartesian mechanization of nature, could be considered dangerous. The question today is: is having power of manipulation, life, and death dangerous? Should someone have the power to be able to give, extend, or end a life? Is it overall helping or harming humanity? The subject of bio power, or the idea of someone having the power to control another, has been around since the stone age. The ability to â€Å"control† or manipulate someone has always been a possibility. In the stone age, the more strong, wise, and powerful caveman controlled the younger, weaker caveman. Today, our bosses, coaches, and professors have the ability to â€Å"control† us. It all seems to relate back to social anarchy, and who is on top of the â€Å"popularity ladder†. The word or expression â€Å"Bio power†, however was coined by Michel Foucault, a French scholar, historian, and social theorist in the late 1960’s. Foucault was interested in the regime of power he saw rising, which he termed â€Å"bio-power† or the power that governments and institutions exercised over man. Foucault took interest in the objectification of a human subject, and how knowledge became power, specifically the idea of how it could be used for the wro ng reasons. For example, how scientists and doctors have to the power of life and death in the palm of their hands. To fertilize, or sterilize a human being, toShow MoreRelatedState Of Exception As A Paradigm Of Government862 Words   |  4 Pagespolitical crises appear only to be understood on political and not juridical grounds. What is little recognized is that law possesses within itself an exception that traps humans and objects within the juridical order. 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Legal opinion Free Essays

In the instant case, defendant Panah was convicted in the trial court of murder and he was sentenced to death. His case is now before us on appeal because of the rule on automatic appeal in case of verdicts of death penalty. In this case, an eight-year-old girl named Nicole Parker was visiting his father, Edward Parker in Woodland Hills. We will write a custom essay sample on Legal opinion or any similar topic only for you Order Now At 11:00 in the morning of the said date, Nicole asked her father for a softball and glove and went outside the apartment complex of his father to play. Forty-five minutes after, Edward looked for Nicole but she is nowhere to be found. Thus, Edward looked for his daughter within the apartment complex to no avail. Edward Parker’s failure to find Nicole prompted him to call the police. Defendant Panah, the resident of apartment #122, talked to Edward and found out that the latter was looking for his missing daughter. When the police arrived, the defendant insisted that Edward come with him to Ventura Boulevard to look for Nicole, but Edward refused. Thereafter, one of the police was informed that Nicole was last seen talking to a man in his 20s who was living in apartment #122. Thus, the said policeman asked for the key to the said room from the manager and searched the apartment complex for Nicole but did not find her. Hours later, the detectives were informed that the defendant attempted to commit suicide and told a friend that he did something really bad that is in connection with the missing child. This friend told the police, which new information prompted the latter to conduct another warrantless search of apartment #122, wherein they found Nicole’s dead body wrapped in a bed sheet and stuffed inside a suitcase. The defendant was charged with murder, and he raised issues as to the illegality of the warrantless searches in his pre-trial motions. However, the trial judge ruled that the warrantless searches were valid, and the defendant was convicted. In this appeal, the defendant again raises the same issues, arguing that the warrantless search conducted in his apartment unit was a violation of his rights under the Fourth Amendment, and that   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   there were no exigent circumstances warranting a warrantless search. Opinion: Under this jurisdiction, we uphold the right of citizens to be secure in their houses and effects. This security is embodied in the Fourth Amendment to our Constitution and is guaranteed by the rule that searches should be reasonable and supported by a warrant based on a finding of probable cause. The Fourth Amendment states: â€Å"The right of the people to be secure in their persons, houses, papers and effects, against unreasonable searches and seizures shall not be violated, and no warrants shall issue, but on probable cause, supported by oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.’† Thus, it is clear that as a general rule, a search warrant must be secured by police officers before barging in another man’s home and searching it for effects. However, this general rule admits of certain exceptions. Precedent: The case of McDonald v. United States, decided in 1948 (355 U.S. 451, 93 L. Ed 15), explained that emergency situations that serve as compelling reasons may justify the absence of a search warrant. While this case decided in favor of the defendant and emphasized his right to be secure in his house and effects, it provides authority for the other position, that is, that given reasonable justification, the requirement of a search warrant may be dispensed with. However, care must be taken so that it is certain that exigent circumstances do exist to justify a warrantless search. After all, it is a fundamental right of all persons to be secure in their houses and effects, and trivial suspicions and the lack of adequate justification should not be an exception to Fourth Amendment rights.   In Kirk v. Louisiana (536 U.S. 635), promulgated in 2002, the Supreme Court again ruled that the police’s conduct of warrantless search was illegal, because they did not find exigent circumstances to justify the absence of a warrant. It should be noted that the court only struck down the validity of the search because there was no exigent circumstances to justify the warrantless search.  Nexus. These cases are authority to serve as the exact opposite of the case at bar. Here there is clearly an exigent and emergency situation. A child had gone missing, and the police did not know whether the girl was dead or alive. Time was of the essence, and the police had to make an immediate decision as to whether to conduct a search, if they were to save the life of the girl. Thus, in this situation, there is clearly an exigent circumstance justifying a warrantless search, because the life of a young girl is on the line. Moreover, probable cause exists, since even prior to the statement of the defendant’s friend regarding his confession, the police were able to gather information from other people that the victim was last seen talking to the defendant. Thus, since there was probable cause and exigent circumstances, this case clearly falls within the recognized exceptions to the Fourth Amendment, and the right of the defendant to be secure in his house and effects was not violated. Hence, the evidence derived from such warrantless search is admissible in evidence against him, and could form the basis of his conviction. The decision of the lower court is thus, affirmed. How to cite Legal opinion, Essay examples

Saint cecilia Essays - Ancient Roman Women, Saint Cecilia, Cecilia

Saint Cecilia is said to have heard heavenly music inside her heart when she was forced to marry the pagan, Valerian. A wealth of music, art and festivals in honor of St. Cecilia has grown from this little bit of information from her biography. She is the acclaimed patron saint of music, especially church music, as well as that of musicians, composers, instrument makers and poets. The name Cecilia means blind and so, although we don't know if she herself couldn't see, she is also the Catholic patron saint of the blind. It is believed that St. Cecilia was born in the 2nd or 3d century A.D., although the dates of her birth and martyrdom are unknown. A religious romance telling the love story of Saint Cecilia and Valerian appeared in Greece during the 4th century A.D., and there is a biography of St Cecilia dating from the 5th century A.D. She is purported to have been the daughter of a wealthy Roman family, a Christian from birth, who was promised in marriage to a pagan named Valerian. Cecilia, however, had vowed her virginity to God, and wore sackcloth, fasted and prayed in hopes of keeping this promise. Saint Cecilia disclosed her wishes to her husband on their wedding night. She told Valerian that an angel watched over her to guard her purity. He wanted to see the angel, so St. Cecilia sent him to Pope Urban(223-230). Accounts of how and when Valerian saw the angel vary, but one states that he was baptized by the Pope, and, upon his return to Saint Cecilia, they were both given heavenly crowns by an angel. Another version recounts that Tibertius, Valerian's brother, sees the crowns and he too is converted. The two brothers then make it their mission to bury Christian martyrs put to death by the prefect of the city. In turn, they were brought in front of the prefect and sentenced to death by the sword. Cecilia, in the meantime, continued to make many conversions, and prepared to have her home preserved as a church at her death. Finally, she too was arrested and brought before the prefect. He ruled that she should die by suffocation in the baths. Saint Cecilia was locked into the bathhouse and the fires vigorously stoked. She remained there for a day and a night but was still alive when the soldiers opened the doors. She was then ordered beheaded, but the executioner, after striking three times without severing St Cecilia's head, ran away, leaving her badly wounded. St. Cecilia Cicrular Medal The words, "St. Cecilia pray for us," form an arch over their heads. St. Cecilia hung onto life for three days after the mortal blows, preaching all the while. She made many more conversions and people came to soak up her flowing blood with sponges and cloths. There exists in Rome a church in St. Cecilia's honor that dates from about the fifth century. Her relics were believed to have been found by Pope Paschal I in 821 A.D., in the cemetery of St. Celestas. These remains were exhumed in 1599, when Cardinal Paul Emilius Sfondrati rebuilt the church of St. Cecilia, and said to be incorrupt. St. Cecilia's following flourished during the Middle Ages in Europe. Songs were sung in her name, poetry was written, paintings with St. Cecilia as the subject were created, and her feast day, on November 22 was happily celebrated. She continued to be a popular topic for the arts well into the 18th century. Hans Memling, in 1470, painted St. Cecilia playing the organ at the mystical marriage of Catherine of Alexandria. In 1584 she was named patroness of the academy of music founded in Rome. Raphael painted her at Bologna, Rubens at Berlin and Domenichino in Paris. Chaucer commemorates her in his Second Nun's Tale and Handel set John Dryden's "Ode to Saint Ceclia" to music in 1736. Never was so much made of such a tiny bit of pseudo-biographical information. St. Cecilia, said to have heard heavenly music at one moment of her life, became the patroness of all western music. Even the Andrews sisters, in 1941, recorded a song, "The Shrine of St. Cecilia." St. Cecilia Oval Medal Devotional medal with the beloved

Methamphetamine Information

Crystal Meth/Methamphetamine Information There are several different types of amphetamines, which are stimulants. Crystal methamphetamine or simply crystal meth is an illegal form of the drug. Heres what you need to know. What Is Crystal Meth? The chemical n-methyl-1-phenyl-propan-2-amine is called methamphetamine, methylamphetamine, or desoxyephedrine. The shortened name is simply meth. When it is in its crystalline form, the drug is called crystal meth, ice, Tina, or glass. See the table below for other street names of the drug. Methamphetamine is a highly addictive stimulant. How Is Crystal Meth Used? Usually, crystal meth is smoked in glass pipes, similar to how crack cocaine is used. It may be injected (either dry or dissolved in water), snorted, swallowed, or inserted into the anus or urethra. Why Is Crystal Meth Used? Females often take crystal meth because it can cause extremely rapid weight loss. However, the effects are short term. The body builds up a tolerance to the drug so weight loss tapers off and stops around six weeks after taking the drug. Also, the weight that is lost is regained once a person stops taking methamphetamine. For these reasons, combined with how addictive the drug is, methamphetamine tends not to be prescribed by doctors for weight loss. Some people take meth because of the long-lasting high that it gives. Methamphetamine causes numerous neurotransmitters to be released in the brain, producing a sense of euphoria that may last as long as 12 hours, depending on how the drug was taken. Methamphetamine is popular as a stimulant. As a stimulant, methamphetamine improves concentration, energy, and alertness while decreasing appetite and fatigue. Methamphetamines are also taken by people who are feeling depressed. They may be taken for their side effect of increasing libido and sexual pleasure. What Are the Effects of Methamphetamine Use? This is a list of effects associated with pure methamphetamine use. Because of how its made, crystal meth is never pure, so the dangers associated with taking the street drug extend beyond these effects. Common Immediate Effects EuphoriaIncreased energy and alertnessDiarrhea and nauseaExcessive sweatingLoss of appetite, insomnia, tremors, jaw-clenchingAgitation, irritability, talkativeness, panic, compulsive fascination with repetitive tasks, violence, confusionIncreased libidoIncreased blood pressure, body temperature, heart rate, blood sugar levels, bronchodilationConstriction of the walls of the arteriesIn pregnant and nursing women, methamphetamine crosses the placenta and is secreted in breast milk Effects Associated With Chronic Use Tolerance (needing more of the drug to get the same effect)Drug cravingTemporary weight lossWithdrawal symptoms including depression and anhedoniaMeth Mouth where teeth rapidly decay and fall outDrug-related psychosis (may last for months or years after drug use is discontinued) Effects of Overdose Brain damageSensation of flesh crawling (formication)Paranoia, hallucinations, delusions, tension headacheMuscle breakdown (rhabdomyolysis) which can lead to kidney damage or failureDeath due to stroke, cardiac arrest or elevated body temperature (hyperthermia) Physical and Chemical Properties of Crystal Meth Crystal meth may be distinguished from other drugs and compounds by its properties. The compound forms two enantiomers (compounds which are mirror images of each other), dextromethamphetamine and levomethamphetamine.Methamphetamine hydrochloride salt is a white crystal or crystalline powder at room temperature that is bitter-tasting and odorless, with a melting point  between 170 to 175  Ã‚ °C (338 to 347  Ã‚ °F). It readily dissolves in water and ethanol.The free base of methamphetamine is a clear liquid that smells like geranium leaves. It dissolves in ethanol or diethyl ether and mixes with chloroform.Although crystal meth is a persistent pollutant in soils, it is degraded by bleach or within 30 days in wastewater that is exposed to light. Where Does Crystal Meth Come From? Methamphetamine is available with a prescription for obesity, attention deficit hyperactivity disorder, and narcolepsy, but crystal meth is a street drug, made in illegal labs by chemically altering over-the-counter drugs. Making crystal meth usually involves reducing ephedrine or pseudoephedrine, found in cold and allergy medicine. In the US, a typical meth lab employs something called the Red, White, and Blue Process, which entails hydrogenation of the hydroxyl group on the ephedrine or pseudoephedrine molecule. The red is red phosphorus, white is the ephedrine or pseudoephedrine, and blue is iodine, used to make hydroiodic acid. Making crystal meth is dangerous to the people making it and dangerous to the neighborhood where its being made. White phosphorus with sodium hydroxide can produce poisonous phosphine gas, usually as a result of overheating red phosphorus, plus white phosphorus can auto ignite and blow up the meth lab. In addition to phosphine and phosphorus, various hazar dous vapors may be associated with a meth lab, such as chloroform, ether, acetone, ammonia, hydrochloric acid, methylamine, iodine, hydroiodic acid, lithium or sodium, mercury, and hydrogen gas. Street Names for Crystal Meth Crystal meth goes by a number of names: BatuBikers CoffeeBlack BeautiesBladeChalkChicken FeedCrankCristyCrystalCrystal GlassCrystal MethGlassGo-FastHanyakHiroponHot IceIceKaksonjaeL.A. GlassL.A. IceMethMethlies QuickPoor Mans CocaineQuartzShabuShardsSpeedStove TopSuper IceTinaTrashTweakUppersVentanaVidrioYabaYellow Bam

Modeling Meiosis Lab Lesson Plan

Modeling Meiosis Lab Lesson Plan Sometimes students struggle with some concepts that relate to evolution. Meiosis is a somewhat complicated process, but necessary to mix up genetics of offspring so natural selection can work on a population by choosing the most desirable traits to be passed down to the next generation. Hands-on activities can help some students grasp the concepts. Especially in cellular processes when it is difficult to imagine something so small. The materials in this activity are common and easily found. The procedure does not  rely on expensive equipment like microscopes or take up a lot of space. Preparing for Modeling Meiosis Classroom Lab Activity Pre-Lab Vocabulary Before starting the lab, make sure students can define the following terms: MeiosisChromosomeCrossing OverHaploidDiploidHomologous PairGametesZygote Purpose of the Lesson To understand and describe the process of meiosis and its purpose using models.   Background Information   Most cells in multicellular organisms like plants and animals  are diploid. A diploid  cell has two sets of chromosomes that form homologous pairs.  A cell with only one set of chromosomes are considered haploid. Gametes, like the egg and sperm in humans, are examples haploid. Gametes fuse during sexual reproduction to form a zygote which is once again diploid with one set of chromosomes from each parent. Meiosis  is a process that starts with one diploid cell and creates four haploid cells. Meiosis is similar to mitosis and must have the cells DNA replicate before it can begin. This creates chromosomes that are made up of two sister chromatids connected by a centromere. Unlike mitosis, meiosis requires two rounds of division to get half the number of chromosomes into all of the daughter cells.  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Meiosis begins with meiosis 1 when homologous pairs of chromosomes will be split.  The stages of meiosis 1 are similarly named to the stages in mitosis and also have similar milestones: prophase 1: homologous pairs come together to form tetrads, nuclear envelope disappears, spindle forms (crossing over may also happen during this phase)metaphase 1: tetrads line up at the equator following the law of independent assortmentanaphase 1: homologous pairs are pulled aparttelophase 1: cytoplasm divides, nuclear envelope may or may not reform The nuceli now only have 1 set of (duplicated) chromosomes. Meiosis 2 will see the sister chromatids split apart. This process is just like mitosis. The names of the stages are the same as mitosis, but they have the number 2 after them (prophase 2, metaphase 2, anaphase 2, telophase 2). The main difference is that the DNA does not go through replication before the start of meiosis 2. Materials and Procedure You will need the following materials: String4 different colors of paper (preferably light blue, dark blue, light green, dark green)Ruler or Meter StickScissorsMarker4 paper clipsTape Procedure: Using 1 m piece of string, make a circle on your desk to represent the cell membrane. Using a 40 cm piece of string, make another circle inside the cell for the nuclear membrane.Cut 1 strip of paper that is 6 cm long, and 4 cm wide from each color of paper (one light blue, one dark blue, one light green, and one dark green) Fold each of the four strips of paper in half, lengthwise. Then place the folded strips of each color inside the nucleus to represent a chromosome before replication. The light and dark strips of the same color represent homologous chromosomes. At one end of the dark blue strip write  a large B (brown eyes) on the light blue make a lower case b (blue eyes). On the dark green at a tip write T (for tall) and on the light green write a lower case t (short)Modeling interphase: to represent DNA replication, unfold each paper strip and cut in half lengthwise. The two pieces that result from cutting each strip represent the chromatids. Attach the two identical chromati d strips at the center with a paperclip, so an X is formed. Each paper clip represents a centromere.4 Modeling prophase 1:  remove the nuclear envelope and put it aside. Place the light and dark blue chromosomes side by side and the light and dark green chromosomes side by side.  Simulate crossing over by measuring and cutting a 2 cm tip for a light blue strip that includes the letters you drew on them earlier. Do the same with a dark blue strip. Tape the light blue tip to the dark blue strip and vice versa. Repeat this process for the light and dark green chromosomes.Modeling metaphase 1: Place four 10 cm strings inside the cell, so that two strings extend from one side into the center of the cell and two strings extend from the opposite side into the center of the cell. The string represents the spindle fibers. Tape a string to the centromere of each chromosome with tape. Move the chromosomes to the center of the cell. Make sure that the strings attached to the two blue chromosomes  come from opposite sides of the cell (same for the two green chromosomes).  Modeling anaphas e 1: Grab onto the ends of the strings on both sides of the cell, and slowly pull the strings in opposite directions, so the chromosomes move to opposite ends of the cell. Modeling telophase 1: Remove the string from each centromere. Place a 40 cm piece of string around each group of chromatids, forming two nuclei. Place a 1 m piece of string around each cell, forming two membranes. You now have 2 different daughter cells. MEIOSIS 2 Modeling prophase 2: Remove the strings that represent the nuclear membrane in both cells. Attach a 10 cm piece of string to each chromatid.Modeling metaphase  2:   Move the chromosomes to the center of each cell, so they are lined up at the equator. Make sure the strings attached to the two strips in each chromosome come from opposite sides of the cell.Modeling anaphase  2: Grab onto the strings on both sides of each cell, and pull them slowly in  opposite directions. The strips should separate. Only one of the chromatids should have the paper clip still attached to it.Modeling telophase  2: Remove the strings and paper clips. Each strip of paper now represents a chromosome. Place a 40  cm. piece of string around each group of chromosomes, forming four nuclei. Place a 1m string around each cell, forming four separate cells with only one chromosome in each.    Analysis Questions Have students answer the following questions to understand the concepts explored in this activity. What process did you model when you cut the strips in half in interphase?What is the function of your paper clip? Why is it used to represent a centromere?What is the purpose of placing the light and dark strips of the same color side by side?How many chromosomes are in each cell at the end of meiosis 1? Describe what each part of your model represents.What is the diploid chromosome number of the original cell in your model? How many homologous pairs did you make?If a cell with a diploid number of 8 chromosomes undergoes meiosis, draw what  the cell looks like after Telophase 1.What would happen to an offspring if cells did not undergo meiosis before sexual reproduction?How does crossing over change diversity of traits in a population?Predict what would happen if homologous chromosomes did not pair in prophase 1. Use your model to show this.

Developmental Evaluation Essay Example | Topics and Well Written Essays - 1000 words

Developmental Evaluation - Essay Example Researches have been conducted and theories have been articulated to assess and evaluate the cognitive, motivational and mental development of individuals. The same has been estimated by conducting a research on the individual under study. Based on the method of participant observation, the present study focuses on Mr. Andrew, an individual under study, hereinafter will be called as subject. The subject is an old man of ninety seven years having short height and thin body with weight only fifty two kg. He maintains grey hair as well as wrinkled countenance and hands; even then he enjoys sound health, and undergoes no impediment or physical difficulty while moving from one place to another. Further, there is no disability in his vocal, visual or aural fitness even at such an old age. He can easily understand the words delivered by others while interacting with him. In the same way, he can easily communicate his message to others without any complexity or intricacy. Thus, he is an individual full of energy and passion. The observation starts right from the subjects meeting with the members of his family and friends who have called on his residence at some special occasion. It took three and half hours during the whole course of observation. The subject has been living with one of his sons and grand-children, but is not in very good terms with them with whom he has been staying. It is therefore he looks at ease while communicating with his other children and grandchildren, who have not been living with him and have arrived just to see him and wish him on fathers day. His behavior while interacting with the guests presents him as a jovial, genial and amiable fellow, though his being reserved with the members living in his residence depict his dual personality. It is a pleasant evening of March, when the subject welcomes his children and grand-children at his house. He is seen sitting on a sofa

Why Abu Dhabi government band shisha from Coffee shops Research Paper

Why Abu Dhabi government band shisha from Coffee shops - Research Paper Example This was posing a great threat particularly to children who could openly see the awful act done publicly (Frank & Sloan 112). The condition made government, which form part of the stakeholders, to push for a ban of shisha business. In their opinion, they argued that the business would merely increase the immorality despite of earnings it receives in form of revenue from the same (Richard, & Thomas 79). This came out despite an acclamation from one the stakeholders ‘I expect that we will make no more than Dh 100 a day, our business greatly depends on shisha.’ Government had justification in their opinion and stand on the ban of the business in Abu Dhabi. This was in the fight against various severe implications associated with conducting the business legally. Cases of children who could see people smoke publicly and try to enumerate the same declined (Sue Pryce 94). Therefore, banning the business particularly from areas with high populations and different forms of human activities became a step in achieving habitable environment for the entire community (George Fisher & Elmer Berry 134). In the economy sector, there is improvement. This is from the fact of decline in the number of people reporting having shisha related complications. There is low expenditure of finances and other recourses used to curbing the menace. These resources go to profitably profitable and critical sectors that develop the economy. Additionally, human skills that were otherwise lost from deaths resulting from smoking shisha are no more there. In my opinion in support for the ban, it is very evident that currently death rate resulting from smoking is becoming alarming. This is from the actual statistics and data from countries and regions that are facing this menace of shisha smoking. The deaths results from several chronic illnesses arising smoking even other substances like tobacco (Michael & Lyman 68). Research

Test case prioritization and regression test selection

Test case prioritization and regression test selection 1. introduction The significance of software testing process and its affects on software quality cannot be taken too lightly. Software testing is a fundamental component of software quality assurance and represents a review of specification, design and coding. The greater visibility of software systems and the cost associated with software failure are motivating factors for planning, through testing. A number of rules that act as testing objectives are: * Testing is a process of executing a program with the aim of finding errors. * A good test case will have a good chance of finding an undiscovered error. * A successful test case uncovers a new error. Software maintenance is an activity, which includes enhancements, error corrections, optimization and deletion of obsolete capabilities. These modifications in the software may cause the software to work incorrectly and may affect the other parts of the software, as developers maintain a software system, they periodically regression test it, hoping to find errors caused by their changes. To do this, developers often create an initial test suite, and then reuse it for regression testing. Regression testing is an expensive maintenance process directed at validating modified software. Regression Test Selection techniques attempt to reduce the cost of regression testing by selecting tests from a programs existing test suite. The simplest regression testing method, retest all, it is one of the conventional methods for regression testing in which all the tests in the existing test suite are re-run. This method, however, is very expensive and may require an unacceptable amount of time to execute all tests in test suite. An alternative method, regression test selection, reruns only a subset of the initial test suite. In this technique instead of rerunning the whole test suite, we select a part of test suite to rerun if the cost of selecting a part of test suite is less than the cost of running the tests that regression test selection allows us to exclude. Of course, this approach is unsatisfactory as well test selection techniques can have significant costs, and can abandon tests that could disclose faults, possibly reducing fault detection effectiveness. [1] To reduce the time and cost during on testing process, another approach, Test Cases Prioritization in a testing procedure can be favorable for engineers and customers. In Test Case Prioritization techniques, test cases are executed in such a way, that maximum objective function like rate of fault detection can be achieved. In section 2 of this paper, we have described different types of Regression Test Selection techniques and we discussed various categories of these types point out by various authors then moving into the details of selective and prioritizing test cases for regression testing. In this section, we also describe several techniques for prioritizing test cases and we evaluate their ability to improve rate of fault detection, according to various authors. In the next section, we in particular describe the Regression Test Selection techniques and Test Case Prioritization problems. Subsequent sections present our analysis and conclusions 2. Regression testing During a software development life cycle, regression testing may start in development phase of system after the detection and correction of errors in a program. Many modifications may occur during the maintenance phase where the software system is corrected, updated and fine-tuned. There are three types of modifications, each arising from different types of maintenance. According to [2], corrective maintenance, commonly called fixes, involves correcting software failures, performance failures, and implementation failures in order to keep the system working properly. Adapting the system in response to changing data requirements or processing environments constitutes adaptive maintenance. Finally, perfective maintenance covers any enhancements to improve the system processing efficiency or maintainability. Based on of modification of specification authors identify two type of regression testing, Progressive regression testing involves a modified specification. In corrective regression testing, the specification does not change. Corrective regression testing Progressive regression testing * Specification is not changed * Involves minor modification to code (e.g., adding and deleting statements) * Usually done during development and corrective maintenance * Many test cases can be reused * Invoked at irregular intervals * Specification is changed * Involves major modification (e.g., adding and deleting modules) * Usually done during adaptive and perfective maintenance * Fewer test cases can be reused * Invoked at regular intervals Table 1: Differences between Corrective and Progressive Regression Testing According to [2], table 1 lists the major differences between corrective and progressive regression testing. Regression testing is defined [3] as the process of retesting the modified parts of the software and ensuring that no new errors have been introduced into previously tested code. There are various regression testing techniques as given by various researchers are: (I) Retest all, (II) Regression Test Selection and (III) Test Case Prioritization. Retest-All Technique reuses all tests existing in test suite. It is very expensive as compared to other techniques. In this report our main focus on Regression Test Selection and Test Case Prioritization. Let P be a procedure or program, let P be a modified version of P, and let T be a test suite for P. A typical regression test proceeds as follows: 1. Select T C T, a set of tests to execute on P. 2. Test P with T, establishing Ps correctness with respect to T. 3. If necessary, create T, a set of new functional or structural tests for P. 4. Test P with T, establishing Ps correctness with respect to T. 5. Create T, a new test suite and test history for P, from T, T, and T. Although each of these steps involves important problems, in this report we restrict our attention to step 1 which involves the Regression Test Selection problem. 2.1. REGRESSION TEST SELECTION Regression Test Selection technique is less expensive as compare to retest all technique. Regression Test Selection techniques reduce the cost of regression testing by selecting a subset of an existing test suite to use in retesting a modified program. A variety of regression test selection techniques have been describing in the research literature. Authors [1] describe several families of techniques; we consider five most common approaches often used in practice. 1) Minimization Techniques: These techniques attempt to select minimal sets of tests from T that yield coverage of modified or affected portions of P. One such technique requires that every program statement added to or modified for P be executed (if possible) by at least one test in T. 2) Safe Techniques: These techniques select, under certain conditions, every test in T that can expose one or more faults in P. One such technique selects every test in T that, when executed on P, exercised at least one statement that has been deleted from P, or at least one statement that is new in or modified for P. 3) Dataflow-Coverage-Based Techniques: These techniques select tests that exercise data interactions that have been affected by modifications. One such technique selects every test in T that, when executed on P, exercised at least one definition use pair that has been deleted from P, or at least one definition-use pair that has been modified for P. 4) Ad Hoc / Random Techniques: When time constraints prohibit the use of a retest-all approach, but no test selection tool is available, developers often select tests based on hunches, or loose associations of tests with functionality. One simple technique randomly selects a predetermined number of tests from T. 5) Retest-All Technique: This technique reuses all existing tests. To test P, the technique selects all tests in T. According to [3], Test Selection techniques are broadly classified into three categories. 1) Coverage techniques: These consider the test coverage criteria. These find coverable program parts that have been modified and select test cases that work on these parts. 2) Minimization techniques: These are similar to coverage techniques except that they select minimum set of test cases. 3) Safe techniques: These do not focus on criteria of coverage, in contrast they select all those test cases that produce different output with a modified program as compared to its original version. Regression test selection identifies the negative impact of modifications applied to software artifacts throughout their life cycle. In traditional approaches, code is modified directly, so code-based selective regression testing is used to identify negative impact of modifications. In model-centric approaches, modifications are first done to models, rather than to code. Consequently, the negative impact to software quality should be identified by means of selective model-based regression testing. To date, most automated model based testing approaches focus primarily on automating test generation, execution, and evaluation, while support for model-based regression test selection is limited [4]. Code-based regression test selection techniques assume specification immutability, while model-based techniques select abstract test cases based on models modifications. Thus, in model based Regression Test Selection techniques, the existing test suite can be classified into following three main types: 1) Reusable test cases: Reusable test cases are test cases from the original test suite that are not obsolete or re-testable. Hence, these test cases do not need to be re-executed. 2) Re-testable test cases: Test cases are re-testable if they are non-obsolete (model-based) test case and they traverse modified model elements. 3) Obsolete test cases: Test cases are obsolete if their input had been modified. Regression Test Selection techniques may create new test cases that test the program for areas which are not covered by the existing test cases. Model based Regression test suite selection that utilizes Unified Modeling Language (UML) based Use Case Activity Diagrams (UCAD). The activity diagrams are commonly employed as a graphical representation of the behavioral activities of a software system. It represents the functional behavior of a given use case. With behavior slicing we can built our activity diagram. This diagram gives us qualitative regression tests. Using behavior slicing each use case divided into a set of unit of behavior where each unit of behavior represents a user action.[5] An activity diagram has mostly six nodes: 1. Initial node 2. User Action node 3. System Processing node 4. System Output node 5. Condition node 6. Final node 2.3. TEST CASE PRIORITIZATION The main purpose of test case prioritization is to rank test cases execution order to detect fault as early as possible. There are two benefits brought by prioritization technique. First, it provides a way to find more bugs under resource constraint condition and thus improves the revealed earlier; engineers have more time to fix these bugs [6]. Zengkai Ma and Jianjun Zhao [6] propose a new prioritization index called testing-importance of module (TIM), which combines two prioritization factors: fault proneness and importance of module. The main advantages of this prioritization approach are twofold. First, the TIM value can be evaluated by analyzing program structure (e.g., call graph) alone and it also can be evaluated by incorporating program structure information and other available data (e.g., source code changes). Therefore, this approach can be applied to not only regression testing but also non-regression testing. Second, through analyzing program structure, we can build a mapping between fault severity and fault location. Those test cases covering important part of system will be assigned high priority and executed first. As a result, the severe faults are revealed earlier and the system becomes reliable at fast rate. The main contributions of authors [6] are: * They propose a new approach to evaluate the testing importance for modules in system by combining analysis of fault proneness and module importance. * They develop a test case prioritization technique, which can provide test cases priority result by handling multiple information (e.g., program structure information, source code changes) and can be applied to both new developed software testing and regression testing. * They implement Apros, a tool for test case prioritization based on the proposed technique, and perform an experimental study on their approach. The result suggests that Apros is a promising solution to improve the rate of severe faults detection. Authors consider a sample system, which consists of six modules: M1-M6 and there exist some call relationships between each module. A test suite includes six test cases T1-T6 that covers the M1-M6 respectively. Some modules are dependent on each other. They are finding fault proneness and fault severity by using TIM from this system. They conclude the prioritization result (T3, T6, T4, T2, T5, and T1) on the bases of analyzing structure of system. For calculating this result they had developed some formulas and equation. [6] They also did some experiment with two Java programs along JUnit test cases: xml-security and jtopas. They select three sequential versions of the two java programs and apply newly developed software testing and the regression testing. They perform some experiment for finding fault proneness and severe fault. They also introduce the importance of any module using weight fact. Authors [7] explore value-driven approach to prioritizing software system test with the objective of improving user-perceived software quality. Software testing is a strenuous and expensive process. Research has shown that at least 50% of the total software cost is comprised of testing activities.They conclude that, their approach of prioritization of test cases is work effectively with regression and non-regression testing by analyzing the program structure. They make a reach on prior TCP which have two goals: (1) to improve customer confidence on software quality in a cost effective way and (2) to improve the rate of detection of severe faults during system-level testing of new code and regression testing of existing code. They present a value-driven approach to system-level test case prioritization called the Prioritization of Requirements for Test (PORT). PORT based on following four factors. 1) Requirements volatility Is based on the number of times a requirement has been changed during the development cycle. 2) Customer priority Is a measure of the importance of a requirement to the customer? 3) Implementation complexity Is a subjective measure of how difficult the development team perceives the implementation of requirement to be. 4) Fault proneness Of requirements (FP) allows the development team to identify the requirements which have had customer-reported failures. They claim in research paper, Prioritization of Requirement Test (PORT) has great impact on finding severe fault at system level. They are emphasis on Customer priority in TCP for improve the fault detection. Today software industries are working on neutral manner. They set neutral value to all requirements use cases, test cases and defects. To improve the customer satisfactions in software engineering world they are presenting a value-driven approach for system level testing. In these days Regression Test Case Prioritization techniques use structural coverage criteria to select the test cases. They are leading their ideas from structure level to code level TCP for both new and Regression tests. This Paper has two main objectives: 1). Find severe faults earlier 2). Improve customer confidence on particular system. Researchers describe several techniques [8] for prioritizing test cases and they empirically evaluate their ability to improve rate of fault detectionà ¢Ãƒ ¢Ã¢â‚¬Å¡Ã‚ ¬a measure of how quickly faults are detected within the testing process. An improved rate of fault detection during regression testing can provide earlier feedback on a system under regression test and let developers begin debugging and correcting faults earlier than might otherwise is possible. Their results indicate that test case prioritization can significantly improve the rate of fault detection of test suites. Furthermore, their results highlight tradeoffs between various prioritization techniques. Test case prioritization can address a wide variety of objectives. In practice, and depending upon the choice of objective, the test case prioritization problem may be intractable: objectives, an efficient solution to the problem would provide an efficient solution to the knapsack problem [8]. Authors consider nine different test case prioritization techniques. T1: No prioritization One prioritization technique that authors consider is simply the application of no technique; this lets us consider untreated test suites. T2: Random prioritization Random prioritization in which authors randomly order the tests in a test suite. T3: Optimal prioritization An optimal ordering of test cases in a test suite for maximizing that suites rate of fault detection. In practice, of course, this is not a practical technique, as it requires knowledge of which test cases will expose which faults. T4: Total branch coverage prioritization We can determine, for any test case, the number of decisions (branches) in that program that were exercised by that test case. We can prioritize these test cases according to the total number of branches they cover simply by sorting them in order of total branch coverage achieved. T5: Additional branch coverage prioritization Total branch coverage prioritization schedules test cases in the order of total coverage achieved. However, having executed a test case and covered certain branches, more may be gained in subsequent test cases by covering branches that have not yet been covered. Additional branch coverage prioritization iteratively selects a test case that yields the greatest branch coverage. T6: Total fault-exposing-potential prioritization Statement- and branch-coverage-based prioritization consider only whether a statement or branch has been exercised by a test case. This consideration may mask a fact about test cases and faults: the ability of a fault to be exposed by a test case depends not only on whether the test case reaches (executes) a faulty statement, but also, on the probability that a fault in that statement will cause a failure for that test case. Although any practical determination of this probability must be an approximation, we wished to determine whether the use of such an approximation could yield a prioritization technique superior in terms of rate of fault detection than techniques based on simple code coverage. T7:Additional fault-exposing-potential (FEP) prioritization Analogous to the extensions made to total branch (or statement) coverage prioritization to additional branch (or statement) coverage prioritization, we extend total FEP prioritization to create additional fault-exposing-potential (FEP) prioritization. This lets us account for the fact that additional executions of a statement may be less valuable than initial executions. In additional FEP prioritization, after selecting a test case t, we lower the award values for all other test cases that exercise statements exercised by t. T8: Total statement coverage prioritization Total statement coverage prioritization is the same as total branch coverage prioritization, except that test coverage is measured in terms of program statements rather than decisions. T9: Additional statement coverage prioritization Additional statement coverage prioritization is the same as additional branch coverage prioritization, except that test coverage is measured in terms of program statements rather than decisions. With this technique too, we require a method for prioritizing the remaining test cases after complete coverage has been achieved, and in this work, we do this using total statement coverage prioritization. 2.3.1. Search Algorithms for Test Case Prioritization There are many search techniques for test case prioritization, which are being developed and unfolded by various researchers in the field. 1) Greedy algorithm: Works on the next best search philosophy. It [9] minimizes the estimated cost to reach a particular goal. Its advantage is that it is cheap in both execution time and implementation. The cost of this prioritization is O(mn) for program containing m statements and test suite containing n test cases. 2) Additional Greedy algorithm: This algorithm [9] uses the feedback from previous selections. It selects the maximum weight element from the part that is not already consumed by previously selected elements. Once the complete coverage is achieved, the remaining test cases are prioritized by reapplying the Additional Greedy algorithm. The cost of this prioritization is O(mn2) for program containing m statements and test suite containing n test cases. 3) Hill Climbing: It is one of the popular local search algorithms with two variations; steepest ascent and next best ascent. It is very easy and inexpensive to execute. However, this has cons of dividing O(n2) neighbors and is unlikely to scale. Steps of algorithm are explained in [9]. 4) Genetic Algorithms (GAs): Is a search technique [9] based on the Darwins theory of survival of the fit test? The population is a set of randomly generated individuals. Each individual is representing by variables/parameters called genes or chromosomes. The basic steps of Genetic Algorithm are (1) Encoding (2) Selection (3) Cross over (4) Mutation. 3. CONCLUSION In this paper we discussed about Regression test selection and Test Case Prioritization Selection. Regression testing is a style of testing that focuses on retesting after changes are made. In traditional regression testing, we reuse the same tests (the regression tests). In risk-oriented regression testing, we check the same module functionality as before, but we use different tests. Any test can be reused, and so any test can become a regression test. Regression testing naturally combines with all other test techniques. Therefore we use Test Case Prioritization technique inside Regression Testing. Test prioritization makes strengthen our regression testing for finding more severe fault in earlier stages. In this paper we discussed about different factor of prioritization. Customer priority has a great impact on PORT. Our view about both test case selection is, First version of test suite which developed by developer should have concrete test cases. Also at the same stage we should perform some prioritization. With earlier prioritization of test cases we can reduce our cost, time, effort and maximize customer satisfaction 4. References [1] Todd L. Graves, Mary Jean Harrold, Jung-Min Kim, Adam Porters, Gregg Rothermel, An Empirical Study of Regression Test Selection Techniques, Proceedings of the 1998 (20th) International Conference on Software Engineering, 19-25 April 1998 Page(s):188 197. [2] Leung, H.K.N., White, L., Insights into Regression Testing, Proceedings., Conference on Software Maintenance, 16-19 Oct. 1989 Page(s):60 69. [3] K.K.Aggarwal Yogesh Singh, Software Engineering Programs Documentation, Operating Procedures, New Age International Publishers, Revised Second Edition 2005. [4] Naslavsky L., Ziv H., Richardson D.J., A Model-Based Regression Test Selection Technique, ICSM 2009. IEEE International Conference on Software Maintenance, 20-26 Sept. 2009 Page(s):515 518. [5] Gorthi R.P., Pasala A., Chanduka K.K.P., Leong, B., Specification-Based Approach to Select Regression Test Suite to Validate [6] Changed Software, APSEC 08. 15th Asia-Pacific Software Engineering Conference, 3-5 Dec. 2008, Page(s):153 160 [7] Zengkai Ma, Jianjun Zhao, Test Case Prioritization based on Analysis of Program Structure, APSEC 08. 15th Asia-Pacific Software Engineering Conference, 3-5 Dec. 2008, Page(s):471 478 [8] Srikanth H., Williams L., Osborne J., System Test Case Prioritization of New and Regression Test Cases, 2005 International Symposium on Empirical Software Engineering, 17-18 Nov. 2005, Page(s):10 pp. [9] Rothermel G., Untch R.H., Chengyun Chu, Harrold M.J., Test Case Prioritization: An Empirical Study, (ICSM 99) Proceedings. IEEE International Conference on Software Maintenance, 30 Aug.-3 Sept. 1999, Page(s):179 188 [10] Zheng Li, Mark Harman, and Robert M. Hierons, Search algorithms for regression test case prioritization, IEEE Trans. On Software Engineering, vol 33, no.4, April 2007.

How Significant a Role Do Multinational Corporations (Mncs) Play in Today’s Uk Economy in Terms of Their Impact on Employment Relations (Er) and Labour Conditions?

How significant a role do multinational corporations (MNCs) play in today’s UK economy in terms of their impact on employment relations (ER) and labour conditions? This is the question the paper attempts to evaluate through drawing on academic literature and empirical evidence from the 2004 Wers survey. The first section profiles MNCs in the UK, currently dominated by US and German firms. Following this, there is a brief analysis of employment relations in the UK. The third section reviews literature from leading commentators on the subject, highlighting contrasting views and evidence of foreign IR and ER practices. The fourth section looks at key factors that influence the way labour is managed within MNCs subsidiaries. The country of origin effect, the home country effect, the global dominance effect and a global interaction effect as identified by Edwards and Ferner. This is important to assess to what extent MNCs use these factors in the management of labour. Finally, a conclusion will be drawn and a consideration whether MNCs have diffused home country employment relations practices to their UK foreign subsidiaries and if they have affected labour conditions for the UK workforce. Introduction Foreign direct investment (FDI) as a percentage of GDP (Ferner Industrial) in the UK is the highest of any developed country in the world. Since the deregulation of the labour market in the 1980’s the UK has seen a rise in foreign owned companies. According to the WERS 2004 survey, 19 per cent of private sector workplaces with 10 or more employees had some degree of foreign ownership, an increase of 4 per cent on the 1998 survey. Similarly, a rise from 8 per cent to12 per cent of companies were predominantly foreign owned and controlled. For what reason do MNCs choose to set up subsidiaries in the UK? Could it be to take advantage of the nature of the 1 open and deregulated national business system and transfer home country ER practices? Margaret Thatcher and the conservative government came to power in 1979 and in favour of capital markets rather than labour markets; legislations were put in place to weaken the power of unions. The national business system has changed dramatically resulting in an institutionally weak British system. These factors have altered the employment relationship, weakening the statutory and long established support for collective representation. A small proportion of the UK workforce is now covered by collective bargaining (McDonalds) in the employment relationship, although remains the principal form of pay setting (Primarily in the public sector). Union membership has decreased from 13. 2 million members at its peak in 1979 to 6. 7 million in 2005 and union density1 has declined from 32 per cent in 1995 to 29 per cent in 2005. Commentators suggest that MNCs are an important source of innovative work practices, such as a specialist HRM functions. Moreover, that they are able to transfer business models from parent companies, the ‘country of origin effect’ to UK subsidiaries with relative ease. This has been described as a ‘forward diffusion’ of practices. However, evidence suggests that some MNCs, dependant on their country of origin, will adhere to the host country practices even though they conflict with the parent companies policies and practices. This will be explored in more detail further into the paper. The following section of the paper will profile MNCs in the UK. Profile of MNCs MNCs are not homogeneous but are now heterogeneous and are spread across sectors, although are dominant in the fast food and manufacturing industries in the UK. At the 1 The unionised workforce expressed as a percentage of potential membership 2 turn of the century there were 18000 foreign subsidiaries (Contemporary Employment Relations) operating in Britain, with 5000 of these employing more than 1000 employees. They stem from the US, Europe and Asia. The US is dominant with 25 per cent of total FDI to the UK followed by Germany (Bach) with 21 per cent. Foreign subsidiaries employ 18 per cent (Warwick) of the workforce in the production sector in the UK and the incidence of foreign-ownership of UK workplaces has risen since 1998 (Wers 2004) by approximately a quarter. They tend to have commonality it its products and services across its subsidiaries with 52 per cent (Warwick) having an international product. It could be argued that for these reasons they have significant economic and political power and the potential to significantly impact UK employment relations and labour conditions. Employment Relations and Labour conditions in the UK Throughout the 1980’s the Thatcher government and the neo-liberal labour movement stripped unions of their power, collapsing the traditional IR pluralist system under the previous labour governments. Historically unions played a powerful role in the UK economy, with the emphasis on centralised collective bargaining over the employment relationship. Union recognition and membership has since been on the decline. Although, sectorial shifts from manufacturing industries were unionization was predominant to an increase in the services sector is a possible conclusion. Moreover, the increase in small enterprises were unions find it hard to organise is another possible answer. It is evident that unionisation in the UK has lost its appeal and there is a marked shift towards alternative means by firms to regulate the employment relationship. The emphasis is shifting away from the pluralist view to the unitarist view on the role of the individual. Successive Labour government under Tony Blair 3 supported the regulative reforms of the conservative government, although amended the union recognition procedure. This stipulates that unions must be recognised in a workplace if there is a majority consensus of employees. The UK is now under EU directives, most recently the information and consultative directive (ICE) which came into force in 2005. This stipulates that companies with more than 1000 employees must establish a works council. This gives the workers rights to information and consultation on company decisions. Employees are also protected by many employment legislations in areas such as discrimination, unfair dismissal, minimum wage and working time regulations, directives from both the EU and the UK. With the general trend away from union involvement and collective agreements there has been a rise in union substitution strategies in the form of HRM policies in domestic firms. ER in Foreign Subsidiaries The following section reviews business systems of different countries that have foreign subsidiaries in the UK and their stance towards trade unions and practices and policies on employment relations. The US is similar to the UK with respect to the national business system. The framework for union representation in the US is weak and the support for collective bargaining is declining. Throughout the 1990’s unionization rates have declined rapidly from 30 to14 percent (Policies) in US firms leading to widespread non-unionism and anti-unionism. Do US firms then transfer this stance to their subsidaireis? One argument is that many US MNCs, especially in the services sector, with low paid, low skilled workers will use strong union avoidance strategies, the ‘low road’ approach to industrial relations. McDonalds is a key example of this with union membership (MCDonalds) bordering at zero. UK 4 unions find it impossible to organise in the company. According to Royle, a possible reason is the strength of the corporate culture disseminated by management. The chief executive of McDonalds stated that ‘unions do not bring much to the equation of the company’s philosophy of service and employee motivation’. To many US MNCs unions are seen as conflicting with their corporate strategy, the philosophy geared towards shareholder value. This gives them the competitive edge in terms of financial markets in the ever increasing globalising world. However, this has only been observed in certain sectors and it is argued that strong anti-unionism is only existent in few MNCs. If it is existent then exploitative HR policies are commonplace (Policies) which is a ‘Bleak house’ model. Non-union US MNCs use innovative union substitution polices, introducing incentives such as favourable pay and conditions to gain commitment from employees. US firms are characterised by centralised decision making and formalised procedures stemming from the HQ. There is a high degree of employee participation involving direct communication and individualised HR function and pay is predominantly performance related. In contrast to the US and UK, Germany has a strong institutional framework to protect the rights of workers. Collective bargaining in firms is under the force of the law (Royle) and 80 to 90 per cent of the workforce is covered by collective agreements. Conversely to the US, German MNCs tend to adapt to their host country environment, not recognising unions in their subsidiaries, which is divergent to their home country practices. 5 Influences on Labour Management According to Ferner and Edwards there are key influences that affect the way labour is managed in MNCs. Firstly, the ‘country of origin’ effect as mentioned earlier. This is when the MNC exerts its parent company’s management style to their foreign subsidiaries. This contends that MNCs transfer ER practices to subsidiaries in order to converge the firm’s practices and policies across international boundaries. This comes under the convergence theory, were globalisation is pressurising companies to standardize ‘best practice’ policies across its international operations. According to Bach, the pace of convergence is increasing with growth of international trade and integrated financial systems, resulting in the erosion of distinctive national differences in the field of ER and industrial relations. This theory is argued by Traxler, who states that national differences remain intact and national variances will always occur due to differing cultural approaches. This is important as it determines the way employees are managed. Autonomy is not left to the subsidiary and policy making is in the hands of the parent company. This is evident in the report by Warwick that identified 61 per cent of MNCs having a worldwide philosophy on the management of employees. With a loosely regulated framework in the UK it is possible for MNCs do ‘forward diffuse’ certain practices and are able to circumvent the national business system if it is in their interests. The characteristics of a flexible workforce and the ease of dismissal in the UK is an example. This is taking advantage of the host country’s business system. Whether this is a positive or negative impact is dependant on the parent company’s country of origin, the culture of management and the sector of operations and of course their strategic objectives. The extent to which they are able to impact on UK ER through the country of origin effect is questionable. US MNCs 6 are the most likely to diffuse home country practices such as union avoidance and antunionism, as evidence suggests. It is argued that US MNCs will challenge traditional pluralist industrial relations. Although, it is evident that union recognition has been declining in the UK over the last twenty years so to suggest that US MNCs are at the forefront of this change is unsound. Companies are finding alternative methods of managing the employment relationship without the need for intermediaries (unions). A further example of forward diffusion is that of Japanese work practices transferred in the 1980’s. Renowned for the innovative work practice of lean production which was successfully transferred to their UK subsidiaries in the manufacturing industry. The ‘host country effect’ is when the MNC is influenced by the country of operation. Certain factors attribute to the extent to which subsidiaries adopt host countries practices. The regulatory framework of the UK is weak compared to its European counterparts so; therefore, open to MNCs devising policies to suit their strategies and the environment. The global dominance effect is associated with how dominant the MNC is and its country of origin in the global economy. It may either enable or constrain (Edwards, Ferner) MNCs to implement ER practices to foreign operations. This has an effect alongside the home country effect. The US is dominant in the global economy thus its practices of ER are seen as influential and innovative, as did the Japanese form of work organisation. There is evidence to suggest that European countries will adopt such characteristics of this liberal model in order to compete effectively in the ever increasing competitive global economy. The US has brought specialised HRM practices, such as recruitment and training and implemented them across foreign sites. 7 The global integration effect is when the MNC is globally integrated on their policies thus becomes one powerful global company. The best practice to standardise all operations in order to meet their oibjectives. Conclusion It is apparent that MNCs have the economic and political power to impact UK employment relations and labour conditions. Foreign direct investment is crucial in ensuring a progressive economy and creating employment. Margaret Thatcher favoured capital thus deregulated the labour market to encourage FDI. The institutional framework of the UK is now weak and open to the transfer of MNCs IR policies. There is evidence that foreign companies will take on union avoidance strategies but there are few that openly challenge the UK IR system. A possible reason to adhere to the national system could be to ‘keep the peace’ with employees and to maintain good community relations within the areas they operate. The UK environment is such that models of unionism, non-unionism and the ‘Bleak house’ exist in MNCs in the UK and that a cross fertilization of these strategies are forming. There is little impact on the UK framework for IR as it is already evolving from collectivism since the 1980’s towards individualism. Although, there is an increase in the services sector were MNCs are dominant and non-unionism is the preferred strategy. The global dominance effect is a crucial factor on the impact of employment relations in the UK. This is closely related to the country of origin effect and global integration effect. The US at present is the most dominant. The main emphasis is now geared towards the shareholder and a short-termist view is the leading strategy. This is impacting on the labour force as MNCs will use their power to dismiss employees if 8 the strategy is focused on shareholders returns. ER is fairly regulated in the UK, workers are protected by legislation, although MNCs do have the power to circumvent some areas. However, there is evidence that they have been influential in terms of HRM in the UK. There impact can be seen in other foreign subsidiaries and indigenous MNCs in creating specialised HR. The main issue is the speed of globalisation and firms will want to compete in countries that have a weak institutional framework, as capital is favoured compared to labour. It will be difficult for countries to keep their national identities with regard to their IR and ER framework. 9 References Alpin, C, Kersley, B (2006) Inside the Workplace: Findings from the 2004 Workplace Employment Relations Survey, Routledge Chapter 2, 11. Clark, I and Almond, P (2004) ‘Dynamism and embeddedness: towards a lower road? British subsidiaries of American multinationals. Industrial Relations Journal (IRJ), 35:6. Edwards, T. , Ferner, F, Bach, S (2002) ‘The renewed ‘American Challenge’: a review of employment practice in US multinationals’. Industrial Relations Journal, Vol. 33 No. 2, pp. 94-108. Edwards, T and Ferner, A (2005) ‘Managing Human Resources in Multinational Companies’. Managing Human Resources: Personnel Management in Transition (4th Edn), Oxford: Blackwell, Chapter 3. Ferner, A (2003) ‘Foreign Multunationals and Industrial Relations in Britain’, in Edwards, P (2003) Industrial Relations Theory and Practice (2nd Edn), Oxford: Blackwell, Chapter 4. Ferner, A et al (2005) ‘Policies on Union Representaion in US Multinationals in the UK: Between Micro-Politics and Macro-Institutions’, British Journal of Industrial Relations, 43:4. Lee, E (1997) ‘Globalisation and Labour Standards: a review of the issues’, International Labour Review, 136:2. Michael Muller-Camen, Phil Almond, Patrick Gunnigle, Javier Quintanilla, Anne Tempel (2001) Between Home and Host Country: Multinationals and Employment Relations in Europe Industrial RelIations Journal 32 (5) , 435–448 doi:10. 1111/1468-2338. 00210 Royle, T (1999) ‘The reluctant bargainers? McDonalds, unions and pay determination in Germany and the UK’. IRJ, 30:2. Tuselmann, H. , McDonald, F. , Heise, A. (2002). ‘Globalisation, nationality of ownership and employee relations – German multinationals in the UK’. Personnel Review, Vol. 31 No. 1, pp. 27-43. Williams, S and Adam-Smith, D (2006) Contemporary Employment Relations: A Critical Introduction, Oxford, Oxford University Press, pp 61-82. http://www. berr. gov. uk/files/file11423. pdf http://www2. warwick. ac. uk/fac/soc/wbs/projects/mncemployment/conference_papers/ voice_in_mncs. pdf http://www. certoffice. org/annualReport/index. cfm? pageID=annual 10 11

Red and White Mulberry Information and Identification

Red mulberry or Morus rubra is native and widespread in the eastern U.S. It is a rapid-growing tree of valleys, flood plains, and moist, low hillsides. This species attains its largest size in the Ohio River Valley and reaches its highest elevation (600 meters or 2,000 feet) in the southern Appalachian foothills. The wood is of little commercial importance. The trees value is derived from its abundant fruits, which are eaten by people, birds, and small mammals. The white mulberry, Morus alba, is native to China and has several differences including size, foliage, and color of fruit. Fast Facts: Red Mulberry Scientific name: Morus rubraPronunciation: MOE-russ RUBE-ruhFamily: MoraceaeUSDA hardiness zones: 3a through 9Origin: Native to North AmericaUses: Bonsai; shade tree; specimen; no proven urban toleranceAvailability: Somewhat available, may have to go out of the region to find the tree Native Range Red mulberry extends from Massachusetts and southern Vermont west through the southern half of New York to extreme southern Ontario, southern Michigan, central Wisconsin and southeastern Minnesota; south to Iowa, southeastern Nebraska, central Kansas, western Oklahoma and central Texas; and east to southern Florida. It is also found in Bermuda. Description Size: 60 feet tall; 50 foot spreadBranches: Dense branches that droop as the tree grows, and will require pruning for clearance; should be trained to a single leader.Leaf: Alternate, simple, broadly ovate to roughly orbicular, pointed, 3 to 5 inches long, serrate margin, even base, rough and fuzzy undersidesTrunk and Bark: Showy trunk; Gray colors with flattened and scaly ridges.Flower and Buds: Small and inconspicuous flowers with off-center buds; usually dioecious but can be monoecious (both male and female flowers on different branches); male and female flowers are stalked axillary pendulous catkins and appear in April and MayFruit: Reddish black and resembling blackberries; reach full development from June to August; composed of many small drupelets developed from separate female flowers ripening togetherBreakage: Susceptible to breakage either at the crotch due to poor collar formation, or the wood itself is weak and tends to break. Special Uses Red mulberry is noted for its large, sweet fruits. A favored food of most birds and a number of small mammals including opossum, raccoon, fox squirrels, and gray squirrels the fruits also are used in jellies, jams, pies, and drinks. Red mulberry is used locally for fence posts because the heartwood is relatively durable. Other uses of the wood include farm implements, cooperage, furniture, interior finish, and caskets. In landscape use. the species is considered invasive and fruits cause a mess on walks and driveways. For this reason, only fruitless cultivars are recommended. Differentiating White Mulberry When compared to red mulberry, the white mulberry has several key differences:Size: Smaller, at 40 feet tall and 40 foot spreadBranches: Less dense with fewer branchesLeaf: Brighter green, smoother, and more rounded with uneven basesTrunk and Bark: Brown with thick and braiding ridgesFlower and Buds: Centered budsFruit: Less sweet, smaller, and lighter in color, with creamy brownish white berries that start as green, purple, or even black; only females bear fruit Red and White Mulberry Hybrids Red mulberry hybridizes frequently with white mulberry, which has become naturalized and somewhat more common than its native sister throughout parts of the Eastern United States.