The Question Of Whether To Legalize Drugs Or Not Is A Very Essay Example For Students

The Question Of Whether To Legalize Drugs Or Not Is A Very Essay controversial and important issue. Drugs affect so many areas ofsociety. The U.S. population has an extremely high rate of alcoholand drug abuse (Grolier). Several groups have formed and spoken outregarding their position. Speaking Out Against Drug Legalizationis the first step in helping to deliver the credible, consistentmessage about the risks and costs of the legalization of drugs topeople in terms that make sense to them. The anti-legalization messageis effective when communicated by representatives of the FederalGovernment, but takes on even more credibility when it comes fromthose in the community who can put the legalization debate in localperspective (Internet). After learning about the issues regarding both sides of theargument, I would choose to support those who oppose legalizationof any drugs. Drugs simply create problems which effect society inseveral ways. The government has made several efforts to control drugsand their users, however, to most the problem appears too out of hand. Others see potential profit in legalizing drugs and still otherssimply believe that individual rights to take drugs should beprotected. The group also acknowledged that the legalization conceptappeals to people who are looking for simple solutions to thedevastating problem of drug abuse (Internet). Society’s answer tothe problem is to trick the drug user by giving him what he wants. We will write a custom essay on The Question Of Whether To Legalize Drugs Or Not Is A Very specifically for you for only $16.38 $13.9/page Order now People believe that making drugs legal will take away the temptationto use them. This idea is wrong and far from logical. If drugs arelegalized then they will be more accessible to the young, addicted,and ignorant. As a result the ready availability of addicting drugs, and asa result of their heavy use for medical problems, many individualsbecame addicted to the narcotics contained in these potent medicines. In fact, in 1900, there were more narcotics addicts, proportionate tothe population, than there are today. At that time, most of the userswho became addicts were medical addicts. Very few abusers took drugsfor recreational purposes. In 1914, in an effort to curb theindiscriminate use of narcotics, the federal government passed theHarrison Act, making it illegal to obtain a narcotic drug without aprescription. During the 1920’s the Supreme Court ruled thatmaintaining addicts on narcotic drugs, even by prescription, was inviolation of the Harrison Act. Some 30,000 physicians were arrestedduring this period for dispensing narcotics, and some 3,000 actuallyserved prison sentences. Consequently, doctors all but abandoned thetreatment of addicts for nearly half a century in the United States(Grolier). The only resulting effect will be a negative one. There are nopositive aspects of putting drugs on the streets with a label readinglegal. There are plenty of people in society that find enoughtrouble on their own without the help of their country. Legalizingdrugs would have a devastating result that would affect society as awhole. Audiences need to understand that 70% of drug users areemployed, and that the school bus driver who drives your childrento school could smoke marijuana, that the surgeon who operates on youmay have cocaine in his system, and that the driver in back of you maybe on speed. The debate needs to demonstrate graphically how thecommon man will be impacted by drug legalization (Internet). There is an idea that the drug user is a low class,unemployed junkie. This is untrue. The drug user is often a whitecollared worker with a family and a future. They are not all dirtywith missing teeth and poor grammar. The common misconceptions of theuser are dangerous to those members of society trying to rid theworld of the problem. .u2a4884dbcd2e1b7e636beaeec456d201 , .u2a4884dbcd2e1b7e636beaeec456d201 .postImageUrl , .u2a4884dbcd2e1b7e636beaeec456d201 .centered-text-area { min-height: 80px; position: relative; } .u2a4884dbcd2e1b7e636beaeec456d201 , .u2a4884dbcd2e1b7e636beaeec456d201:hover , .u2a4884dbcd2e1b7e636beaeec456d201:visited , .u2a4884dbcd2e1b7e636beaeec456d201:active { border:0!important; } .u2a4884dbcd2e1b7e636beaeec456d201 .clearfix:after { content: ""; display: table; clear: both; } .u2a4884dbcd2e1b7e636beaeec456d201 { display: block; transition: background-color 250ms; webkit-transition: background-color 250ms; width: 100%; opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #95A5A6; } .u2a4884dbcd2e1b7e636beaeec456d201:active , .u2a4884dbcd2e1b7e636beaeec456d201:hover { opacity: 1; transition: opacity 250ms; webkit-transition: opacity 250ms; background-color: #2C3E50; } .u2a4884dbcd2e1b7e636beaeec456d201 .centered-text-area { width: 100%; position: relative ; } .u2a4884dbcd2e1b7e636beaeec456d201 .ctaText { border-bottom: 0 solid #fff; color: #2980B9; font-size: 16px; font-weight: bold; margin: 0; padding: 0; text-decoration: underline; } .u2a4884dbcd2e1b7e636beaeec456d201 .postTitle { color: #FFFFFF; font-size: 16px; font-weight: 600; margin: 0; padding: 0; width: 100%; } .u2a4884dbcd2e1b7e636beaeec456d201 .ctaButton { background-color: #7F8C8D!important; color: #2980B9; border: none; border-radius: 3px; box-shadow: none; font-size: 14px; font-weight: bold; line-height: 26px; moz-border-radius: 3px; text-align: center; text-decoration: none; text-shadow: none; width: 80px; min-height: 80px; background: url(https://artscolumbia.org/wp-content/plugins/intelly-related-posts/assets/images/simple-arrow.png)no-repeat; position: absolute; right: 0; top: 0; } .u2a4884dbcd2e1b7e636beaeec456d201:hover .ctaButton { background-color: #34495E!important; } .u2a4884dbcd2e1b7e636beaeec456d201 .centered-text { display: table; height: 80px; padding-left : 18px; top: 0; } .u2a4884dbcd2e1b7e636beaeec456d201 .u2a4884dbcd2e1b7e636beaeec456d201-content { display: table-cell; margin: 0; padding: 0; padding-right: 108px; position: relative; vertical-align: middle; width: 100%; } .u2a4884dbcd2e1b7e636beaeec456d201:after { content: ""; display: block; clear: both; } READ: FOREIGN DIRECT INVESTMENT IN MEXICO (FDI) EssayDrinking on the job is a social and economic problem with along history. With the growing popularity of illegal drugs in the1960’s and 1970’s, it was to be expected that their use in theworkplace would emerge as a major issue by the 1980’s. Estimates ofemployee drug use vary greatly, ranging from 10 percent to 25 percentfor the proportion of workers who use drugs occasionally on the job. The safe performance of some occupations among them, airline pilot,air traffic controller, truck driver, and physician can becompromised by drug use (Grolier). One of the greatest concerns of drugs is their contributionto the crime rate. Crime will always be a problem as long as drugsexist and are abused. One category of crime is the victimless crime,which includes drunkenness, drug addiction, prostitution and gambling. The use of the term victimless is an extremely qualified one. Itrefers to acts committed by consenting adults in private; the actsinvolve only the participants and are not harmful to others. If harmoccurs; it is inflicted only upon the willing participants. Victimlesscrimes are often characterized by the exchange of sought aftergoods and services, and they generate huge amounts of illegal income. It has been argued, however, that no crime is victimless. The drugaddict suffers physical and emotional harm and often commits propertycrimes to obtain money for buying drugs (Grolier). Crime too often is the result of a drug problem. The crimerate would probably lower if drugs were illegal because the drugabusers wouldn’t need to steal to pay for their drugs. Legalizingdrugs would just add to an already rising problem. Compared with other countries that keep crime statistics, theUnited States has the highest rate per 100,000 population for reportedmurders, rapes, and robberies. It is important to remember, however,that the incidence of crime is influenced by such factors asindustrialization, urbanization, drug and alcohol abuse, unemployment,and the availability of fire arms (Grolier). This should be reason enough to make all drugs illegal. Legalizing drugs will just feed the problem that teenagers and youngadults face daily. Making drugs legal makes them more conscienceaccessible and easier on the The illegal use of psychoactive drugsis vast and extensive in the United States. Some 70 million Americansage 12 and over have tried at least one or more prohibited drugs forthe purpose of getting high. The illegal drug trade represents anenormous economic enterprise. Sales of illegal drugs in the UnitedStates may have totaled $100 billion in 1986, more than the totalnet sales of the largest American corporation, and more than Americanfarmers earned from all crops combined. About 60% of the illegal drugssold worldwide end up in the United States (Grolier). The problems that society already faces with the unemployed,homeless, criminals, and high school drop-out rate will simplyincrease. What society would want such problems to escalate. Thethought of how seriously this could impact our entire nation is bothridiculous and terrifying. I strongly believe that there are a great deal of people whohave not tried drugs out of fear of getting caught. If this fear weretaken from them, they would probably become drug addicts. As stated bythe National Commission of Marijuana and Drug Abuse, The term abusehas no functional utility and has become no more than an arbitrarycode word for that drug which is presently considered wrong(Grolier). I believe that our country should uphold a few basicstandards, and keep drugs and the problems they create out of oursociety. Legalization is an act of neglect and ignorance.

The Battle of the Wilderness - American Civil War

The Battle of the Wilderness - American Civil War The Battle of the Wilderness was fought May 5-7, 1864, during the American Civil War (1861-1865). In March 1864, President Abraham Lincoln promoted Ulysses S. Grant to lieutenant general and gave him command of all Union armies. Grant elected to turn over operational control of the western armies to Major General William T. Sherman and shifted his headquarters east to travel with Major General George G. Meades Army of the Potomac. For the coming campaign, Grant planned to attack General Robert E. Lees Army of Northern Virginia from three directions. First, Meade was to cross the Rapidan River east of the Confederate position at Orange Court House, before swinging west to engage the enemy. To the south, Major General Benjamin Butler was to advance up the Peninsula from Fort Monroe and threaten Richmond, while to the west Major General Franz Sigel laid waste to the resources of the Shenandoah Valley. Badly outnumbered, Lee was forced to assume a defensive position. Unsure of Grants intentions, he had placed Lieutenant General Richard Ewells Second Corps and Lieutenant General A.P. Hills Third Corps in earthworks along the Rapidan. Lieutenant General James Longstreets First Corps was positioned to the rear at Gordonsville from which it could reinforce the Rapidan line or shift south to cover Richmond. Union Commanders Lieutenant General Ulysses S. GrantMajor General George G. Meadeapprox. 102,000 men Confederate Commanders General Robert E. Leeapprox. 61,000 men Grant Meade Move Out In the pre-dawn hours of May 4, Union forces began departing their camps near Culpeper Court House and marching south. Divided into two wings, the Federal advance saw Major General Winfield S. Hancocks II Corps cross the Rapidan at Elys Ford before reaching camps near Chancellorsville around noon. To the west, Major General Gouverneur K. Warrens V Corps crossed over pontoon bridges at Germanna Ford, followed by Major General John Sedgwicks VI Corps. Marching five miles south, Warrens men reached Wilderness Tavern at the intersection of the Orange Turnpike and Germanna Plank Road before halting (Map). While Sedgwicks men occupied the road back to the ford, Grant and Meade established their headquarters near the tavern. Not believing that Lee could reach the area until late on May 5, Grant intended to use the next day to advance west, consolidate his forces, and bring up Major General Ambrose Burnsides IX Corps. As Union troops rested, they were forced to spend the night in the Wilderness of Spotsylvania, a vast area of thick, second-growth forest that negated the Union advantage in manpower and artillery. Their situation was further imperiled by a lack of cavalry patrols on the roads leading towards Lee. Lee Reacts Alerted to the Union movements, Lee quickly ordered Ewell and Hill to begin moving east to meet the threat. Orders were also issued for Longstreet to rejoin the army. As a result, Ewells men camped that night at Robertsons Tavern on the Orange Turnpike, only three miles from Warrens unsuspecting corps. Moving along the Orange plank road, Hills men made similar progress. It was Lees hope that he could pin Grant in place with Ewell and Hill to allow Longstreet to strike at the Union left flank. A daring scheme, it required him to hold Grants army with fewer than 40,000 men to buy time for Longstreet to arrive. The Fighting Begins Early on May 5, Warren spotted Ewells approach up the Orange Turnpike. Instructed to engage by Grant, Warren began moving west. Reaching the edge of a clearing known as Saunders Field, Ewells men began digging in as Warren deployed the divisions of Brigadier Generals Charles Griffin and James Wadsworth on the far side. Studying the field, Warren found that Ewells line extended beyond his own and that any attack would see his men enfiladed. As a result, Warren asked Meade to postpone any attack until Sedgwick came up on his flank. This was refused and the assault moved forward. Surging across Saunders Field, Union troops quickly saw their right shattered by Confederate flanking fire. While Union forces had some success south of the turnpike, it could not be exploited and the assault was thrown back. Bitter fighting continued to rage in Saunders Field as Wadsworths men attacked through the thick forest south of the field. In confused fighting, they fared little better. By 3:00 PM, when Sedgwicks men arrived at the north, the fighting had quieted. The arrival of VI Corps renewed the battle as Sedgwicks men unsuccessfully attempted to overrun Ewells lines in the woods above the field (Map). Hill Holds To the south, Meade had been alerted to Hills approach and directed three brigades under Brigadier General George Getty to cover the intersection of the Brock Road and Orange Plank Road. Reaching the crossroads, Getty was able to fend off Hill. As Hill prepared to assault Getty in earnest, Lee established his headquarters a mile to the rear at the Widow Tapp Farm. Around 4:00 PM, Getty was ordered to attack Hill. Aided by Hancock, whose men were just arriving, Union forces increased pressure on Hill forcing Lee to commit his reserves to the fight. Brutal fighting raged in the thickets until nightfall. Longstreet to the Rescue With Hills corps on the point of collapse, Grant sought to focus Union efforts for the next day on the Orange Plank Road. To do so, Hancock and Getty would renew their attack while Wadsworth shifted south to strike Hills left. Burnsides corps was ordered to enter the gap between the turnpike and plank road to threaten the enemy rear. Lacking additional reserves, Lee hoped to have Longstreet in place to support Hill by dawn. As the sun began to rise, the First Corps was not in sight. Around 5:00 AM, the massive Union assault began. Punching up the Orange Plank Road, Union forces overwhelmed Hills men driving them back to the Widow Tapp Farm. As the Confederate resistance was about to break, the lead elements of Longstreets corps arrived on the scene. Quickly counterattacking, they struck Union forces with immediate results. Having become disorganized during their advance, the Union troops were forced back. As the day progressed series of Confederate counterattacks, including a flanking attack utilizing an unfinished railroad grade, forced Hancock back to the Brock Road where his men entrenched. In the course of the fighting, Longstreet was severely wounded by friend fire and taken from the field. Late in the day, Lee conducted an assault on Hancocks Brock Road line but was unable to break through. On Ewells front, Brigadier General John B. Gordon found that Sedgwicks right flank was unprotected. Through the day he advocated for a flank attack but was rebuffed. Towards nightfall, Ewell relented and the attack moved forward. Pushing through the thick brush, it shattered Sedgwicks right forcing it back the Germanna Plank Road. Darkness prevented the attack from being exploited further (Map). Aftermath of the Battle During the night a brushfire broke out between the two armies, burning many of the wounded and creating a surreal landscape of death and destruction. Feeling that no additional advantage could be had by continuing the battle, Grant elected to move around Lees right flank towards Spotsylvania Court House where the fighting would continue on May 8. Union losses in the battle totaled around 17,666, while Lees were approximately 11,000. Accustomed to retreating after bloody battles, the Union soldiers cheered and sang when they turned south upon leaving the battlefield. Selected Sources CWSAC Battle Summary: WildernessHistory of War: Battle of the WildernessFredericksburg Spotsylvania National Military Park

The Law of Electronic Commerce and the Internet Research Paper

The Law of Electronic Commerce and the Internet - Research Paper Example Irrespective of the contractual arrangements between the parties, the misleading and deceptive conduct provisions of the TPA and/or equivalent Fair Trading legislation may well apply, provided a sufficient jurisdictional nexus is established in relation to the relevant conduct. However, this is on particular problems arose by eBuy and Mr. John Online auction transactions. In the case of an eBay, auction company has control over the goods that are being auctioned. In this case of the auction, the buyers Mr. Paul paid $ 1500 the eBuy company for the goods Television. Misleading and deceptive conduct will extend to the layout of the site itself. In this regard factors such as the size, type, and color of the font, the prominence and location of hyperlinks, visibility and location of key terms and conditions, whether any distracting graphics or technology are used as well as other relevant circumstances, may be relevant to whether the Internet-based conduct is misleading or deceptive. In this case, terms and conditions of the eBay Company were not clear and the size was big so that customers clicking "I Accept" Button without reading and understanding the terms and conditions. And Mr. John was clicking "I Accept" Button without reading and understanding the terms and conditions.Mr. John's claim would depend, essentially, on whether he could establish that he was led to believe that the auction site eBay, through terms and conditions or through representations on the website, misled him as to the characteristics and security of the auction process. This issue was considered in the case of Evagora v eBay Australia & New Zealand Pty Limited [2001] VCAT 49, although, being a Tribunal decision, its precedent value is limited. In that case, Evagora successfully bid for a computer in an eBay hosted auction, which was paid for but never arrived. The seller of the computer was based overseas. Evagora claimed for his loss against eBay, arguing that he did not read eBay's user agreement and that eBay represented that the auction site was safe, which overrode the terms of the user agreement. eBay was held liable by the Tribunal for the loss suffered by Evagora. It is important that the terms and conditions on which a consumer participates in Online auctions website are clear, accurate, and accessible to avoid potential claims under sections 52 and 53. It is also important not to reduce or nullify the effectiveness of any terms and conditions by contrary or inconsistent representations or impressions given to users via the actual content of the website. Answer 2 Harry's Burger Farm collects personal details from Paul. Two years later Paul is upset when his health insurer charges a higher health insurance premium because he is deemed a 'high risk' heart attack candidate. Another insurer refuses to ensure his car, citing high clash statistics for owners of mobile phones.

Rene Descartes The Method Essay Example | Topics and Well Written Essays - 1500 words

Rene Descartes The Method - Essay Example Four years earlier, before Descartes wrote and tried to publish The Method, Galileo was tried (persecuted) by the so-called Inquisition of the Catholic Church for his treatise on the solar system and the planetary movement, and was forced to retract all of his assumptions and theories. Galileo was teaching Copernicanism, and Descartes' book was Copernican in nature. It was one of the reasons why Descartes tried not to publish this treatise on reasoning, so as not to suffer the same fate as Galileo's. Nevertheless, the controversy and the many interpretations forced Descartes to make the move - let the world know of what should reason be all about. Descartes explains reason or reasoning as an application of what one thinks, or that which comes of his intellect or mind. It is not only important that you have a "rigorous" mind, Descartes argues, but that you know how to apply it in everyday life. Most thinking of today is influenced by Descartes' way of reasoning. Descartes deals on metaphysics, but also on the scientific way. The Method is divided into six parts, as follows: first touching the topic on the Sciences; in the second, the rules of the Method; the third, certain of the rules of Morals which he has deduced from this Method; in the fourth, the reasonings by which he establishes the existence of God and of the Human Soul; in the fifth, the order of the Physical questions which he has investigated, and in the last what Descartes believes to be required in order to have greater advancement in the investigation of Nature, or the experiments. Each of the chapters in The Method, relies on the reasonings, and so explained by the Author with logic and proofs prevalent in his times of reasoned thinking. Philosophers and thinkers dominated this era of world history. They wanted to dominate the world through reason, so that almost every aspect of man's endeavor at that time was influenced by it. The time is known as the age of enlightenment which refers to the enlightenment of the eighteenth century, down to 17th century, in European and American philosophy. It advocates reason as a means to establishing an authoritative system of aesthetics, ethics, government, and logic. Thinkers argued that some kind of systematic thinking as the Newtonian kinematics could be applied to all forms of human activity. This influenced almost every major activity or movement all throughout Europe and other areas of the world including the United States. It was during this time when the solar system was truly discovered. Descartes' theory or conce pt on skepticism and inquiry into the nature of "knowledge" was a 'product' of the enlightenment. Main target of the thinkers of the movement was religion, particularly the Catholic Church. In turn they were regarded as radicals. There were opposing thinkers however, and one of them was Edmund Burke who is known as the father of modern conservatism. Burke opposed the implementation of governing based on abstract ideas. He espoused liberal conservatism, supported organic reform, and openly attacked metaphysics. Descartes published a short work which was metaphysical rather than scientific. The Discourse on Method is best known as the source of the famous quotation "cogito ergo sum", "I think, therefore I am." In the first chapter, Descartes says: "For to

Law for Business Essay Example | Topics and Well Written Essays - 1000 words

Law for Business - Essay Example Since the two directors constitute the majority, their decision prevails. In the general meeting, the vote in favour of the motion must at least be 75% for the motion to pass, since this is the required majority to pass a special resolution. Another way of passing a special resolution is to directly circulate the motion in writing without calling for a meeting and have the same percentage of voting rights approve the proposal. The objective of this report is to outline a legitimate procedure, on behalf of Francesca, that will allow a change in the company name of Toys4U Ltd despite the objection of one of the three directors to the proposal. According to the Companies Act 2006, a company may change its name in compliance to an extraneous mandate such as one coming from the Secretary of State, an adjudicator upholding a protest on the company name’s use, the court or as a result of company name restoration. The company can also effect a change of its name upon its own initiative (Â § (1) & (2), s 78, Companies Act 2006). It is the latter that is the concern of this report since it is the directors who are interested in pursuing a company name change. According to the relevant provision of law, a change of company name effected by the company’s own initiative can be made either through a special resolution or through any other means prescribe by the company’s Articles of Incorporation (Â § (1)(a) & (b), Companies Act 2006). Under the British company law, there are two ways by which a company decides: an ordinary resolution, or; an extraordinary or special resolution. The two types of resolutions are distinguished from each other by the number of votes required to pass them. Whilst an ordinary resolution requires only a majority vote to be passed, an extraordinary or special resolution needs at least 75% of the votes cast by members (van Gerven & Storm 2006 468). Since the law mandated a special resolution to effect a change of a

Calcium Hydroxide in Simulated Lateral Canal Filling

Calcium Hydroxide in Simulated Lateral Canal Filling Aim: The aim of this study was to investigate the influence of calcium hydroxide dressing on the filling of simulated lateral canals by different obturation techniques. Materials and Methods: Sixty single root premolars were instrumented. Simulated lateral canals were drilled on each third of the roots. The teeth were divided into four groups: no dressing and obturation by lateral condensation technique (G1), dressing with calcium hydroxide and obturation by lateral condensation technique (G2), no dressing and obturation by hybrid technique (G3) and, dressing with calcium hydroxide and obturation by hybrid technique (G4). The teeth were maintained at 37oC in 100% humidity for seven days, and obturation techniques were performed. Radiographs were taken and lateral canals filled or unfilled were counted. Data were analyzed using ANOVA followed by Tukey’s test (ÃŽ ±=5%). Results: The hybrid technique filled large number of lateral canals compared to lateral condensation technique , regardless the use of intracanal medication (PPPConclusion: Regardless the obturation technique, calcium hydroxide dressing reduced the penetration of filling material in simulated lateral canals. Clinical significance: The persistence of calcium hydroxide residues reduces the penetration of filling material in simulated lateral canals, possibly representing a potential cause of failure in the future. Keywords: Calcium hydroxide, Endodontics, root canal obturation, laboratory research Introduction The root canal system has a very complex anatomy, characterized mainly by the presence of curvatures, accessory and lateral canals.1-3 The lateral canals can be observed anywhere along the root length of an important percentage of teeth, although more commonly in the apical third.1 Actually, the presence of lateral canals represents a challenge, as they are difficult to reach, clean, disinfect and fill during endodontic treatment,4 representing a potential cause of diseases.3,5-8 Considering that persisting bacteria may be located in not accessed areas like lateral canals, the intracanal medication and three-dimensional obturation of the root system becomes extremely important.4 The intracanal medication has been used to complete the disinfection and to prevent reinfection by these microorganisms,9-11 and can act chemically by killing microorganisms or physically by preventing bacterial penetration.12 The obturation also could prevent reinfection13 as the sealer isolates microorganisms without access to space and nutrients.14 Calcium hydroxide has been widely used as an intracanal medication for its antibacterial effect on most of the microorganisms identified in the root canal system.12 The therapeutic properties of this medication are associated with their pH value and with the period that they remain within the root canals.9,15 It has been pointed out that calcium hydroxide dressing for seven days with subsequent instrumentation and irrigation with sodium hypochlorite, improve the debridement of the root canal system and efficiently eliminate persistent bacteria.16,17 However, it was found that a considerable amount of calcium hydroxide paste remains attached to the root canal after instrumentation and irrigation with various solutions.18-20 Also, it is known that when calcium hydroxide is incompletely removed from the root canal, the residue compromises the endodontic sealing.20,21 Thus, it is possible that residual calcium hydroxide could obliterate the openings of the lateral canals, blocking their filling.19,22 Additionally, the type of obturation technique is a crucial factor to be considered in such situations, since the capability to ensure the filling of lateral canals is an important clinical parameter and may represent a favorable aspect of the filling technique. In this context, the aim of this in vitro study was to evaluate the influence of calcium hydroxide dressing on the filling of simulated lateral canals by different obturation techniques. Materials and Methods The study has been approved by an ethical committee from Pontifà ­cia Universidade Catà ³lica do Paranà ¡, under number of register 326/2004. Only one researcher has done the experimental procedures. Sample preparation In this in vitro study, a total of sixty human single root mandibular premolars with medium length between 21 to 23 mm were selected. The teeth were autoclaved and stored in 0.5% thymol solution prior to the experimental assays. The coronal access was gained with a #2 round and a #3080 diamond bur (KG Sorensen, Barueri, SP, Brazil). Then, the coronal and middle thirds of the root canal were shaped using #1, #2, and #3 Gates-Glidden drills (Dentsply Maillefer, Ballaigues, Switzerland). The canal length was visually established by placing a #10 K-file (Dentsply Maillefer, Ballaigues, Switzerland) in each root canal until it was seen emerging through the apical foramen. The working length was determined by subtracting 1 mm from this measurement. The teeth were instrumented at the working length using a #35 K-File (Dentsply Maillefer, Ballaigues, Switzerland). Simulated lateral canals Three simulated lateral canals were drilled on the mesial and distal surfaces (one in each third: coronal, middle and apical) by using a device. This device consisted by a #10 K-File (Dentsply Maillefer, Ballaigues, Switzerland) with 4 mm from its tip sectioned, which was adapted in a low-speed contra-angle handpiece. The root canals were then instrumented using a #45 K-File (Dentsply Maillefer, Ballaigues, Switzerland) to the working length to create a smear layer. After every change of file size and at the completion of instrumentation, the canals were irrigated with 5 mL of a 1% sodium hypochlorite solution. Following this, the root canal was irrigated with 5 mL of 17% ethylene diaminetetraacetic acid (EDTA) (Merck Brasil, Sà £o Paulo, SP, Brazil) followed by a final flush of distilled water. The root canals were dried with paper points (Tanariman Manufacturer, Amazonas, AM, Brazil). Experimental groups Afterwards, the sixty teeth were randomly divided into four equal groups of fifteen. The groups were separated according to the use or not of calcium hydroxide dressing, and the type of obturation technique, as follow: no dressing and obturation by lateral condensation technique (G1), dressing with calcium hydroxide and obturation by lateral condensation (G2), no dressing and obturation by Tagger’s hybrid technique (G3) and, dressing with calcium hydroxide and obturation by Tagger’s hybrid technique (G4). Dressing procedure In G2 and G4, the calcium hydroxide paste was prepared by mixing two parts of lab grade calcium hydroxide and 1 mL saline solution to obtain a creamy consistency. The paste was inserted using a #25 Lentulo drill (Dentsply Maillefer, Ballaigues, Switzerland), subtracting 2 mm from the working length. The access cavities were temporarily sealed with a cotton pellet and temporary seal (Coltosol, Coletene, Rio de Janeiro, RJ, Brazil). The samples were maintained at 37oC in 100% humidity for seven days. Afterwards, the temporary seal was removed and the calcium hydroxide was cleaned using a #35 K-File (Dentsply Maillefer, Ballaigues, Switzerland) and irrigation with 1% sodium hypochlorite solution and 17% EDTA (Merck Brasil, Sà £o Paulo, SP, Brazil). The root canals were dried with paper points (Tanariman Manufacturer, Amazonas, AM, Brazil). Obturation techniques For obturation procedures, the AH Plus sealer (Dentsply Maillefer, Ballaigues, Switzerland) was used in all groups. The sealer was manipulated according with manufacturer’s instructions. The obturation technique was performed as follow. Lateral condensation For G1 and G2, it was used the lateral condensation technique. For this, a well-fitting master gutta-percha cone #35 (Dentsply Maillefer, Ballaigues, Switzerland) coated with sealer was taken up 1 mm from the working length. Then, the master cone was left seated and the lateral condensation was performed using a finger spreader B (Dentsply Maillefer, Ballaigues, Switzerland). This spreader was inserted with the sealer toward the canal’s wall and then counterclock wisely removed to create room for the insertion of the accessory gutta-percha cones (Dentsply Maillefer, Ballaigues, Switzerland). This procedure was repeated until the insertion of new accessory cones was not possible. After the obturation completion, the excess of filling material was removed and the cold vertical condensation was executed. Tagger’s hybrid technique For G3 and G4, it was used the Tagger’s hybrid technique. For this, a master cone was seated as described above. An initial lateral condensation was performed with the finger spreader B (Dentsply Maillefer, Ballaigues, Switzerland), and one accessory gutta-percha cone was inserted. Next, a McSpadden compactor #70 (Dentsply Maillefer, Ballaigues, Switzerland) was coupled to a low-speed contra-angle handpiece and introduced passively into the root canal. The penetration of the condenser inside root canal was obtained with the aid of a rubber marker 1 mm short of the working length. With the condenser inside the root canal, next to the gutta-percha cones, it was driven by forward and backward movements up to reach working length, staying in that position for about 1 second. The condenser was removed from root canal with the motor still driven with gentle pressure on one side of the canal’s wall. Following, the vertical condensation of the plasticized gutta-percha was perfo rmed through heat Paiva’s condensers in order to obtain a better adaptation of the filling material. Postoperative radiographs Immediately after filling, postoperative radiographs were taken and all of them were identically exposed, developed, and fixed. The radiographs were placed in slide mounts and projected in order to count the lateral canals filled or unfilled in each group. Only completely filled lateral canals were considered. Three calibrated examiners analyzed the images. Statistical analysis Data were statistically analyzed by the SAS/LAB package (SAS Software, version 9.0; SAS Institute Inc., Cary, USA). Firstly, Kappa’s test was performed to evaluate the examiner’s level of agreement. The assumptions of equality of variances and normal distribution of errors were checked and the data were transformed as suggested by the software. The simulated lateral canals were analyzed using three-way ANOVA followed by Tukey HSD test, considering the dressing, obturation technique and root thirds as study factors. The significance level was set at 5%. Results The value of the test of agreement between examiners was 0.89. In Figure 1, it is observed representative radiographs after obturation by different techniques. The Tagger’s hybrid technique filled large number of simulated lateral canals compared to the lateral condensation technique, regardless the use of intracanal medication (PP Although the coronal and apical thirds had a somewhat larger number of filled lateral canals than the middle third, this difference was not statistically significant (P>0.05) (Table 1). Significant differences were observed when comparing the number of filled and unfilled canals in the same root third of each group (PP>0.05). Discussion After shaping and cleaning the root canal, persisting bacteria may be located in not accessed areas like lateral canals, and this must be considered potentially pathogenic and a cause of future endodontic failure.3,5-8 For this reason, dressing and three-dimensional obturation of the root canal system becomes important steps.4 The use of calcium hydroxide dressing is established in the literature,23 however, persistence of this medication in the root canal walls could prevent the sealer penetration into the dentinal tubules,21 compromising the obturation procedure. Also, several techniques have been developed to achieve an adequate three-dimensional obturation of lateral canals.24 For this, we purposed to evaluate the influence of calcium hydroxide dressing on the filling of simulated lateral canals by different obturation techniques. The actual need to fill lateral canals has been a largely discussed in the current literature.2,4,19 However, it is important to point out that both lateral canals and apical ramifications have been implicated with treatment failure when they are sufà ¯Ã‚ ¬Ã‚ ciently large to harbor signià ¯Ã‚ ¬Ã‚ cant numbers of bacteria and to provide these bacteria with access to the periradicular tissues.3,25 Therefore, disinfection, dressing and filling of lateral canals in cases of pulp necrosis and apical and/or lateral periodontitis should be considered important goals of the treatment, although difà ¯Ã‚ ¬Ã‚ cult to achieve.3 Calcium hydroxide is widely used as an intracanal medication,12 and several techniques have been used to remove it from the root canal.18,21,26,27 The enlargement of the canal to the next file size and copious irrigation with sodium hypochlorite and/or EDTA, which are the procedures commonly used in clinical practice, seems to be unable in completely remove calcium hydroxide from root canal.21,26 There is a consensus that the residues of the medicament persists in the canal even with different techniques for removal.28,29 The results of our study demonstrated that residual calcium hydroxide blocked the openings of the lateral canals, reducing and/or preventing the penetration of sealer or gutta-percha into the lateral canals, corroborating with a previous study.19 Regardless the obturation technique, we demonstrated that when calcium hydroxide was applied as a dressing medication (G2 + G4), 99 of the 180 simulated lateral canals were obturated. On the other hand, when calcium hydroxide was not used (G1 + G3), 129 of the 180 simulated lateral canals were filled. Also, in our study, simulated lateral canals were created in each third of the canal root. We showed that no differences were found among the different root thirds in the same group. About the ability of different obturation techniques to fill simulated lateral canals the literature indicates that warm gutta-percha techniques are superior.2 According to our results, the Tagger’s hybrid technique resulted in large number of filled simulated lateral canals, although it was reduced with the dressing with calcium hydroxide. Also, the lateral condensation showed the worst ability in filling simulated lateral canals, particularly when calcium hydroxide dressing was employed. It is possible that the cold condensation of gutta-percha difficult the penetration of the filling material.30 Thermoplasticized techniques improve the expansion of the material against the dentinal walls.31 A recent study about the interference of calcium hydroxide previous to the filling revealed that the medication can difficult the hermetic filling of the root canal system because of its property of obliterates lateral canals.22 Overall, the persistence of calcium hydroxide residues should be considered as a side effect when selecting this medication as an interappointment dressing in root canal therapy,19,22 regardless the obturation technique to be employed. Conclusions Regardless the obturation technique, calcium hydroxide dressing reduced the penetration of filling material in simulated lateral canals. Clinical significance The persistence of calcium hydroxide residues reduces the penetration of filling material in simulated lateral canals, possibly representing a potential cause of failure in the future. 1

Executive Summary of Camar Automotive Hoist Essays -- Executive Summar

Executive Summary of Camar Automotive Hoist Camar Automotive Hoist has built its reputation on a quality product in the Canadian market however in 2000 the company is facing the problem of sustaining future growth of its business. In an attempt to address this need of sustaining growth we recommend that Camar Automotive Hoist clearly defines its position as a safe and convenient scissor lift producer on international wheel alignment markets; and transfers its focus mainly on the US and the European Union markets. Our suggestion is to spotlight the US market by working closely with the wholesalers instead of using a direct sales-force; while exporting products to Europe by means of indirect exportation instead of through other ventures. By doing this, the company will efficiently allocate its resources and achieve its goal of sustaining growth gradually with low risks. The Canadian market potential is limited thus we believe that US market is a quick growth opportunity for us immediately with low risks while exploring the EU no w will allow us to search for long term future growth. The implementation of our strategic plan for the US market is to build our brand image with to the wholesalers by giving incentives to their representatives for working hard and selling our products. For the EU market, we will find distributors who are familiar with the market and familiarize them with our product. Recommendation For the next fiscal year we recommend that Cama...