The effect of salt on the boiling temperature of water research paper Essay

Project Design Plan Everyone knows that water boils at 212Â °F, but does adding salt to a pot of water make it boil at a higher temperature? Being a person that cooks frequently at home, I wanted to test the debated idea that adding salt to my water will make it boil faster. One of my friends says it does raise the temperature and therefore cooks it faster. My other friend says it only helps it taste better. Literature Review Table salt is often added to water before the boiling process in hopes that the water will boil faster. It has been argued that the boiling temperature difference is insignificant with a small pot of water. However, when adding salt to larger amounts of water, the change is more noticeable. Southwest Research Institute states that the heat capacity of salt water is less than that of pure water, which means that it takes less energy to raise the temperature of the salt water 1Â ° C. than pure water. The time it takes a pot of water to boil is controlled by three things, first is how much heat you put into the pot, second is how fast the temperature rises and third is the boiling point of the liquid (Southwest Research Institute, 2014). Salt elevates the boiling temperature of water using a process known as boiling point elevation. With water being a known solvent and salt a non-volatile solute, when you add salt to the water, it makes the water an impure solvent, and raises its boiling point above that of pure solvents (Effect of Salt on the Boiling Temperature of Water). Experimental Design Steps Water will be boiled four different times as follows: 1.2 cups of distilled water are added to a 2 quart cooking pot a. First run add NO salt – this is the control b. Second run add 1 Tablespoon of table salt – Trial #1 c. Third run add 1 Tablespoon of table salt – Trial #2 d.Fourth run add 1 Tablespoon of table salt – Trial #3 2. For each run, bring water to boil 3. For each run, record the highest temperature reading of the boiling water 4. After first through third runs, allow pot and burner to cool 5. Wash pot after each run to clean salt residue Reasoning A typical recipe will call for a dash of salt in the water. The articles I read made me believe that adding more salt would make the temperature difference more noticeable, I upped the salt to 1 tablespoon of salt to each pot of water per run, instead of a dash. Adding a dash of salt could skew the results, because when adding a dash, you will not have the same measurement of salt to each pot of water as you would when measuring the salt with a tablespoon. In order to reduce error, so I used three trials. Sequence of Events During each trial I will be measuring the temperature of the water with a thermometer. Once it reaches its highest temperature, I will record it in my data table. This will be the process for each trial. Tools, Technologies, and Measurement Units Table Salt Distilled Water 2 Quart Cooking Pot Pint measuring cup Teaspoon and tablespoon measuring spoons Thermometer (Degrees Fahrenheit) Stirring spoon Stove top burner (electric) Variables Independent Variable: Amount of salt added to the water Dependent Variable: Temperature at which the water boils Controlled Variables: Temperature of stove setting, pot, type of water, brand of salt, amount of water, thermometer Threat Reduction to Internal Validity By washing the pot and thermometer between each trial, I will reduce the amount of salt residue that is on the pot that could alter my results. I will use the same heating unit, pot, and thermometer each time to get more valid results. Hypothesis The hypothesis of this experiment is that adding table salt to water will raise the boiling temperature of the water. Process of Data Collection Boiling Point of Two Cups of Water Amount of salt added (IV) Temperature of boiling water in Fahrenheit (DV) No Salt (Control) 212.7Â °F 1 Tablespoon Salt Run #1 214.9Â °F 1 Tablespoon Salt Run #2 215.3Â °F 1 Tablespoon Salt Run #3 215.1Â °F As predicted, adding salt to water does raise the boiling temperature of the water, even if only minimally. Variations in the boiling temperature may be contributed to slight variations in the measurements of the salt added to the water. It is important to measure both the water and salt accurately to ensure accurate results. Appropriate Methods For each run, 2 cups of water were added to a 2 quart saucepan; 1 tablespoon of salt was then added to the water and stirred to mix the two ingredients together. The saucepan was then put on the stove and brought to a boil. Once the water reached a full boil the final temperature was recorded using a Go-Temp thermometer. The tools and methods used in this are appropriate to the experiment. Results The results were larger than anticipated. The average temperature of the water with the salt was 215.1 degrees Fahrenheit, while the temperature of the control was 212.7 degrees Fahrenheit. This was a difference of 2.4 degrees. Conclusion Confirmation of Hypothesis My hypothesis was confirmed. Adding table salt to water causes the water to boil at a higher temperature. The temperature readings were hard to make. Oven mitts had to be worn to keep my hands from getting burned. I had to be sure that the thermometer wasn’t too close to the stove or the temperature would be skewed. Experimental Design as a Key Factor How you design your experiment is key to helping you keep your results reliable and valid. You only need one independent variable. If you have more than one, you won’t know which one is actually affecting your results, it will also be harder to measure. Making as many variables as possible constant will help increase the reliability of the experiment. Replication By following this plan and report, you can replicate this experiment. One might try adding different amounts of salt to see if there is a point at which the amount of salt added stops increasing the boiling point. Evaluation of Validity Replicating this experiment will add to the validity of my results and others results. If the experiment is replicated numerous times this will add to the validity, resulting in a more accurate conclusion. It is important to measure both the water and salt accurately to ensure that the results collected are as accurate as possible. References Does water boil faster if you put salt in the water? (n.d.). Retrieved July 19, 2014, from http://www.swri.org/10light/water.htm EXPERIMENTAL SCIENCE PROJECTS: The Effect of Salt on the Boiling Temperature of Water. (n.d.). Retrieved July 19, 2014, from http://www.freesciencefairproject.com/projects/effect_salt_boiling_water.html Effect of Salt on the Boiling Temperature of Water. (n.d.). Retrieved July 19, 2014, from http://www.actiondonation.org/articles/effect-of-salt.html Post navigation. (n.d.). Retrieved July 19, 2014, from http://www.sciencebase.com/science-blog/how-does-salt-affect-the-boiling-point-of-water.html

Seperation of Power

The separation of powers essay | Law Teacher Latest Update >> Writing a law dissertation appendix Search site†¦ My Account Order online anytime – Need help? Tel: 0115 966 7966 Like 1. 8k We're the most liked Law Essay Writing Service! ; Home Prices Services Order Guarantees About Us Law Help Law Essay Help Contact Us You are here: Law Teacher  » Constitutional Law  » Essays  » Separation Of Powersessay Translate this Free Law Essays page ? The separation of powers essay Search all our free law essays†¦These essays have been written by students for you to use to help you with your studies. If you need your own custom law essay then we can help†¦. Get a quote for your own law essay†¦ Dissertation Help Select Language Coursework Help Search Share & Download Like 0 Don't Get Ripped Law Study Guides BVC/BPTC Guides Off Print Download LPC Letter Drafting How to avoid Law Cases getting ripped off by other essay writing companies. 0 Email Law Essay Areas Find out more Helpful Law Info ‘The Separation of Powers, as usually understood, is not a concept to which the United Kingdom constitution adheres. Discuss This essay aims to examine the reasons for and why it is important to have a separation of powers, to examine the United Kingdom's constitution, assessing our somewhat unclear separation of powers, and discussing the reasons why we do not have a strict separation, taking into account the overlaps and relationships between each limb of Government and the checks and balances required for it to operate efficiently. The political doctrine of the Separation of Powers can be traced back to Aristotle, who states: â€Å"There are three elements in each constitution .. irst, the deliberative, which discusses everything of common importance; second the officials; and third, the judicial element. † This highlights the three elementary functions that are required for the organisation of any state. Nowadays, they are defined as the l egislature, the executive and the judiciary, and are carried out by Government. The legislature is the law-making body, and is comprised of the House of Commons and the House of Lords. The legislative function involves ‘the enactment of general rules determining the structure and powers of public authorities and regulating the conduct of citizens and private organisations.Australian Law Resources Free Australian law resources to help you with your studies! Find out more Need A Law Essay Quote? Use our online calculator to get an instant quote online for your law essay. Find out more Not studying law but still need writing help? http://www. lawteacher. net/constitutional-law/essays/separation-of-powersessay. php[20-03-2013 01:11:41 PM] The separation of powers essay | Law Teacher The executive is all the institutions and persons concerned with the implementation of the laws made by the legislature.It involves central and local government and the armed forces. The role of the ex ecutive ‘.. includes initiating and implementing legislation, maintaining order and security, promoting social and economic welfare, administering public services and conducting the external relations of the state. The judiciary is made up mainly of professional judges, and their main function is ‘to determine disputed questions of fact and law in accordance with the law laid down by Parliament and expounded by the courts and .. is exercised mainly in the civil and criminal courts. The question which now arises is whether or not there should be a strict separation of each of the above functions. Locke stated: .. it may be too great a temptation to human frailty.. for the same persons who have the power of making laws, to have also their hands the power to execute them, whereby they may exempt themselves from obedience to the laws they make, and suit the law, both in its making and execution, to their own private advantage. We can also help you with essay writing in other areas of study†¦ Find out more Law Essay Writing ServiceFind out how our custom law essay writing service can help you get the grade you deserve. Find out more Similarly, Montesquieu believed that: When legislative power is united with executive power in a single person or in a single body of the magistracy, there is no liberty #46; is there liberty if the power of judging is not separate from the legislative power and from the executive power. If it were joined to legislative power, the power over the life and liberty of the citizens would be arbitrary, for the judge would be the legislator.If it were joined to executive power, the judge could have the force of an oppressor. All would be lost if the same man or the same body of principal men, either of nobles, or of the people, exercised these three powers: that of making the laws, that of executing public resolutions, and that of judging the crimes or the disputes of individuals. These statements illustrate that both academi cs felt if one, or a group of persons, controlled more than one limb, the result would inevitably be corruption and an abuse of power.Tyranny and dictatorship would ensue and this, in turn, would mean a loss of liberty for the people. However, although each emphasise the importance of a strict separation, it can be seen that in the UK, this is not the case. Parpworth states: ‘a separation of powers is not, and has never been a feature of the UK constitution. An examination of the three powers reveals that in practice they are often exercised by persons which exercise more than one such power. ‘ Why is this so? Why is there not a strict separation? Saunders explains that: ‘.. very constitutional system that purports to be based on a separation of powers in fact provides, deliberately, for a system of checks and balances under which each institution impinges upon another and in turn is impinged upon. ‘ If there was a strict separation, and we did not have overl aps or checks and balances, our system of Government would become unmoveable. A lack of cooperation between limbs would result in constitutional deadlock and therefore, ‘.. complete separation of powers is possible neither in theory nor in practice. There are numerous examples of overlap and checks and balances between the three functions of government, and these shall now be explored. The main instance of overlap, in recent years, was the position of Lord Chancellor. This role has been continually citied to support the view that there is no separation of powers in the United Kingdom. Historically, the position of Lord Chancellor was distinctive in that he was a http://www. lawteacher. net/constitutional-law/essays/separation-of-powersessay. hp[20-03-2013 01:11:41 PM] The separation of powers essay | Law Teacher member of all three branches of Government and exercised all three forms of power. He would sit as speaker in the House of Lords (legislative function), was head of th e judiciary (judicial function), and was a senior cabinet minister (executive function). After the Human Rights Act 1998 and the case of McGonnell v UK (2000) , the Government announced changes to the role of Lord Chancellor in the UK. In McGonnell, the European Court of Human Rights eld that the Royal Court Bailiff of Guernsey had too close a connection between his judicial functions and his legislative and executive roles and as a result did not have the independence and impartiality required by Article 6(1) of the European Convention on Human Rights 1950. This had implications on the Lord Chancellors role, as he performed very similar functions in the UK. It was after this that the Government enacted the Constitutional Reform Act 2005, which meant that the Chancellor was replaced as head of the judiciary by the Lord Chief Justice .He was replaced as speaker in the House of Lords by the creation of the post of Lord Speaker , and now only appoints judges on the basis of recommendat ion from a Judicial Appointments Commission . These changes show that there is a strong importance still placed upon the doctrine of separation of powers. However it is still possible to see overlaps within the three limbs. Examining the relationship between the legislature and the executive Bagehot stated that there was a close union and nearly complete fusion of these powers.This notion had been criticised, particularly by Amery, who wrote that: Government and Parliament, however intertwined and harmonized, are still separate and independent entities, fulfilling the two distinct functions of leadership direction and command on the one hand, and of critical discussion and examination on the other. They start from separate historical origins, and each is perpetuated in accordance with its own methods and has its own continuity. So let us examine this relationship. Firstly, the question to ask is whether the same persons form part of both the legislature and executive.It can be seen that ministers are members of one House of Parliament, but there are limitations as to how many ministers can sit in the House of Commons. As well as this, most people within the executive are disqualified from the Commons. These include those in the armed forces and police and holders of public offices. So it can be seen from this that it is ‘only ministers who exercise a dual role as key figures in both Parliament and the executive. ‘ The second question is whether the legislature controls the executive or visa versa. The legislature has, in theory, ultimate control as it is the supreme law making body in this country.However in reality, the executive can be seen to dominate the legislature. Government ministers direct the activities of central government department and have a majority in the House of Commons. Lord Halisham, the former Lord Chancellor, has referred to the executive as an elective dictatorship. He means Parliament is dominated by the Government of the d ay. Elective dictatorship refers to the fact that the legislative programme of Parliament is determined by the government, and government bills virtually always pass the House of Commons because of the nature of the governing party's majority.However, the legislature has opportunities to scrutinise the executive, and does so during question time, debates and by use of committees. The final question in this area is whether or not the legislature and executive exercise each other's functions. It can be seen that the executive performs legislative functions in respect of delegated legislation. Parliament does not have enough time to make all laws and so delegates its power. This is ‘convenient to the executive that ministers and local authorities and departments can implement primary legislation by making regulations. However effective parliamentary procedures exist that scrutinise the use made of delegated power which will be discussed below. http://www. lawteacher. net/constitu tional-law/essays/separation-of-powersessay. php[20-03-2013 01:11:41 PM] The separation of powers essay | Law Teacher The next relationship to be examined is that of the executive and the judiciary, and again, the questions we ask are similar. Firstly, do the same persons form part of the executive and the judiciary? Originally, the executive had the power to appoint judges and the Lord Chancellor sat in the House of Lords.However, following the Constitutional Reform Act 2005, as discussed above, the executive has less control. Judges are now appointed by the Judicial Appointments Committee. The second question is whether the executive control the judiciary or do the judiciary control the executive. Judicial independence is controlled by law. Since the Act of Settlement 1700, superior judges can only be dismissed by an address from both Houses of Parliament. But the judiciary do exercise some control over the executive. This is via judicial review. Bradley and Ewing state that this is an ‘essential function to protect the citizen against unlawful acts of overnment agencies and officials'. It involves the courts determining the lawfulness of executive power and is principally concerned with the legality of the decision-making process when delegated legislation is created. This demonstrates a definitive crossover between the judiciary and executive. However, some public bodies are exempt. For example, in R v Parliamentary Commissioner for Standards, ex parte Al Fayed (1998) the court of Appeal ruled that the Parliamentary Commissioner for Standards could not be subjected to judicial review.This was largely due to the principles of the separation of powers. The third question is whether or not the executive and judiciary control one another's functions. Once again, overlap can be seen, with the executive exercising a judicial function through the growth of administrative tribunals which adjudicate over disputes involving executive decisions. The final relat ionship to examine is that of the judiciary and legislature, and again, the same questions must be asked. Firstly, do the same persons exercise legislative and judicial functions?To honor the separation of powers, the House of Commons Disqualification Act 1975 provides that all full time members of the judiciary are barred from membership of the House of Commons. In previous years, the Law Lords from the House of Lords sat in the upper house of the legislature. As a result they: ‘took part, to a limited extent, in legislative business. ‘ However, since the Constitutional Reform Act 2005, they no longer execute legislative functions due to the newly created Supreme Court, which is separate from the House of Lords.Secondly, does the legislature control the judiciary or does the judiciary control the legislature. It is a constitutional convention that MP's should respect judicial independence and not comment on the activities of judges unless there is motion to dismiss a su perior judge. Judges, although they may examine acts of the executive to make sure they conform with the law, cannot review the validity of legislation passed by the legislature due to the doctrine of legislative supremacy. They are under a duty to apply and interpret the laws enacted by Parliament.If a Parliamentary Act is in breach of the European Convention on Human Rights, then, under the Human Rights Act 1998, judges in superior courts can make a declaration of incompatibility. However this does not mean the act is not valid, because, again honoring the separation on powers; only the Parliament can make or unmake law. The final question is whether the legislature and judiciary exercise each other's functions. ‘Each House of Parliament has the power to enforce its own privileges and to punish those who offend against them'. This once again is an example of overlap.The judiciary, when developing the common law, interpret statutes and delegated legislation. Thus, Bradley and Ewing describe them to have a quasi legislative function. They have a narrow ability to legislate, but their ‘decisions are important as a source of law on matters where the Government is unwilling to ask Parliament to legislate, and .. directly affect the formal relationship between the judiciary and Parliament. ‘ In conclusion, it can be seen there are definite relationships between each limb of government, and this shows that the separation of powers is not a concept to which the United Kingdom fully adheres.However, the view of the courts is one of absolute separation. ‘.. it is a feature of the peculiarly British conception of the separation of powers that Parliament, the executive and the courts have their distinct and largely exclusive domain. ‘ Whilst the courts remain of this view, and whilst the three limbs, although they overlap in many ways, remain distinct and largely separate, we can say there is at least a partial separation of powers in the U K.And rightly, as Parpworth points out: ‘an absolute separation would in practice be counterproductive in that it would prevent the abuse of power by preventing the exercise of power. Government could not operate if this were the case. ‘ The recent changes to the constitution as a result of the Constitutional Reform Act 2005 prove that the concept is still firmly believed in, and while not always respected, it remains something the Munro states should not be ‘lightly dismissed'. http://www. lawteacher. net/constitutional-law/essays/separation-of-powersessay. hp[20-03-2013 01:11:41 PM] The separation of powers essay | Law Teacher How do you rate the quality of the essay above? Good Neutral Poor ORDER YOUR OWN LAW ESSAY GET A LAW ESSAY QUOTE Request the removal of this law essay http://www. lawteacher. net/constitutional-law/essays/separation-of-powersessay. php like http://www. facebook. com/LawTeacherNet AVomUz8N 0 Like 1. 8k 960 readers Get a quote Order now! 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Ada-approved Fluoride Toothpaste

Toothpaste is a paste or gel dentifrice used with a toothbrush as an accessory to clean and maintain the aesthetics and health of teeth. Toothpaste is used to promote oral hygiene: it serves as an abrasive that aids in removing the dental plaque and food from the teeth, assists in suppressing halitosis, and delivers active ingredients (mainly fluoride) to help prevent tooth and gum disease (gingivitis). [1] Most of the cleaning is achieved by the mechanical action of the toothbrush, and not by the toothpaste.Salt and sodium bicarbonate (baking soda) are among materials that can be substituted for commercial toothpaste. Toothpaste is not intended to be swallowed, but is generally not very harmful if accidentally swallowed in small amounts. Ingredients In addition to 20-42% water, toothpastes are derived from a variety of components, including three main ones: abrasives, fluoride, and detergents. Abrasives Abrasives constitute at least 50% of a typical toothpaste. These insoluble parti cles help remove plaque from the teeth.The removal of plaque and calculus helps minimize cavities and periodontal disease. [citation needed] Representative abrasives include particles of aluminum hydroxide (Al(OH)3), calcium carbonate (CaCO3), various calcium hydrogen phosphates, various silicas and zeolites, and hydroxyapatite (Ca5(PO4)3OH). Abrasives, like the dental polishing agents used in dentists' offices, also cause a small amount of enamel erosion which is termed â€Å"polishing† action. Some brands contain powdered white mica, which acts as a mild abrasive, and also adds a cosmetically pleasing glittery shimmer to the paste.The polishing of teeth removes stains from tooth surfaces, but has not been shown to improve dental health over and above the effects of the removal of plaque and calculus. [2] Fluorides Fluoride in various forms is the most popular active ingredient in toothpaste to prevent cavities. Fluoride occurs in small amounts in plants, animals, and some n atural water sources. The additional fluoride in toothpaste has beneficial effects on the formation of dental enamel and bones. Sodium luoride (NaF) is the most common source of fluoride, but stannous fluoride (SnF2), olaflur (an organic salt of fluoride), and sodium monofluorophosphate (Na2PO3F) are also used. Stannous fluoride has been shown to be more effective than sodium fluoride in reducing the incidence of dental caries[3] and controlling gingivitis. [4] Much of the toothpaste sold in the United States has 1000 to 1100 parts per million fluoride. In European countries, such as the UK or Greece, the fluoride content is often higher; a NaF of 0. 312% w/w (1,450 ppm fluoride) is not uncommon.Surfactants Many, although not all, toothpastes contain sodium lauryl sulfate (SLS) or related surfactants (detergents). SLS is found in many other personal care products, as well, such as shampoo, and is mainly a foaming agent, which enables uniform distribution of toothpaste, improving its cleansing power. [2] Other components Antibacterial agents Triclosan, an antibacterial agent, is a common toothpaste ingredient in the United Kingdom. Triclosan or zinc chloride prevent gingivitis and, according to the American Dental Association, helps reduce tartar and bad breath. 1][5] A 2006 review of clinical research concluded there was evidence for the effectiveness of 0. 30% triclosan in reducing plaque and gingivitis. [6] Flavorants Toothpaste comes in a variety of colors, and flavors intended to encourage use of the product. Three most common flavorants are peppermint, spearmint, and wintergreen. Toothpaste flavored with peppermint-anise oil is popular in the Mediterranean region. These flavors are provided by the respective oils, e. g. peppermint oil. [2] More exotic flavors include anise, apricot, bubblegum, cinnamon, fennel, lavender, neem, ginger, vanilla, lemon, orange, and pine.More unusual flavors have been used, e. g. peanut butter, iced tea, and even whisky. Unfl avored toothpastes exist. Remineralizers Hydroxyapatite nanocrystals and calcium phosphate are included in some formulations for remineralization,[7] i. e. the reformation of enamel. Miscellaneous components Agents are added to suppress the tendency of toothpaste to dry into a powder. Included are various sugar alcohols, such as glycerol, sorbitol, or xylitol, or related derivatives, such as 1,2-propylene glycol and polyethyleneglycol. [8] Strontium chloride or potassium nitrate is included in some toothpastes to reduce sensitivity.Sodium polyphosphate is added to minimize the formation of tartar. Safety Fluoride Although water fluoridation has been praised as one of the top medical achievements of the 20th century,[9] fluoride-containing toothpaste can be acutely toxic if swallowed in large amounts. [10][11] The risk of using fluoride is low enough that the use of ‘full-strength' toothpaste (1350-1500ppm fluoride) is advised for all ages (although smaller volumes are used for young children; a ‘smear' of toothpaste until three years old). [11] A major concern of dental fluorosis is for children under 12 months ingesting excessive fluoride through toothpaste.Several non-fluoride toothpastes are available. Diethylene glycol The inclusion of sweet-tasting but toxic diethylene glycol in Chinese-made toothpaste led to a several nation, multiple brand toothpaste recall in 2007. [12] The world outcry made Chinese officials ban the practice of using diethylene glycol in toothpaste. [13] Miscellaneous issues and debates With the exception of toothpaste intended to be used on pets such as dogs and cats, and toothpaste used by astronauts, most toothpaste is not intended to be swallowed, and doing so may cause nausea or diarrhea. Tartar fighting' toothpastes have been debated. [14] Case reports of plasma cell gingivitis have been reported with the use of herbal toothpaste containing cinnamon. [15] SLS has been proposed to increase the frequency of mouth ulcer s in some people, as it can dry out the protective layer of oral tissues, causing the underlying tissues to become damaged. [16] Alteration of taste perception After using toothpaste, orange juice and other juices have an unpleasant taste. This effect is attributed to products of the chemical reaction between stannous fluoride in toothpaste and the acetic acid in the juices. 17] Sodium lauryl sulfate alters taste perception. It can break down phospholipids that inhibit taste receptors for sweetness, giving food a bitter taste. In contrast, apples are known to taste more pleasant after using toothpaste. [18] Distinguishing between the hypotheses that the bitter taste of orange juice results from stannous fluoride or from sodium lauryl sulfate is still an unresolved issue and it is thought that the menthol added for flavor may also take part in the alteration of taste perception when binding to lingual cold receptors.Other types of toothpaste Whitening toothpastes Many toothpastes mak e whitening claims. Some of these toothpastes contain peroxide, the same ingredient found in tooth bleaching gels. The abrasive in these toothpaste remove the stains, not the peroxide. [19] Whitening toothpaste cannot alter the natural color of teeth or reverse discoloration by penetrating surface stains or decay. To remove surface stains, whitening toothpaste may include abrasives to gently polish the teeth, and/or additives such as sodium tripolyphosphate to break down or dissolve stains.When used twice a day, whitening toothpaste typically takes two to four weeks to make teeth appear more white. Whitening toothpaste is generally safe for daily use, but excessive use might damage tooth enamel. Teeth whitening gels represent an alternative. [20] Herbal and â€Å"natural† toothpastes Many consumers have started to switch over to natural toothpastes to avoid synthetic and artificial flavors that are commonly found in regular toothpastes. [21] Due to the increased demand of nat ural products, most of the toothpaste manufacturers now produce herbal toothpastes.This type of toothpaste does not contain dyes or artificial flavors. Many herbal toothpastes do not contain fluoride or sodium lauryl sulfate. The ingredients found in natural toothpastes vary widely but often include baking soda, aloe, eucalyptus oil, myrrh, plant extract (strawberry extract), and essential oils. In addition to the commercially available products, it is possible to make one's own toothpaste using similar ingredients. History Early toothpastes The Greeks, and then the Romans, improved the recipes for toothpaste by adding abrasives such as crushed bones and oyster shells. 22] In the 9th century, the Persian musician and fashion designer Ziryab invented a type of toothpaste, which he popularized throughout Islamic Spain. [23] The exact ingredients of this toothpaste are unknown,[24] but it was reported to have been both â€Å"functional and pleasant to taste†. [23] It is not know n whether these early toothpastes were used alone, were to be rubbed onto the teeth with rags, or were to be used with early toothbrushes, such as neem-tree twigs and miswak. Toothpastes or powders came into general use in the 19th century. Tooth powderTooth powders for use with toothbrushes came into general use in the 19th century in Britain. Most were homemade, with chalk, pulverized brick, or salt as ingredients. A 1866 Home Encyclopedia recommended pulverized charcoal, and cautioned that many patented tooth powders that were commercially marketed did more harm than good. Arm & Hammer marketed a baking soda-based toothpowder in the United States until approximately 2000, and Colgate currently markets toothpowder in India and other countries. Modern toothpaste An 18th century American and British toothpaste recipe called for burnt bread.Another formula around this time called for dragon's blood (a resin), cinnamon, and burnt alum. [25] By 1900, a paste made of hydrogen peroxide a nd baking soda was recommended for use with toothbrushes. Pre-mixed toothpastes were first marketed in the 19th century, but did not surpass the popularity of tooth-powder until World War I. In 1892, Doctor Washington Sheffield of London manufactured toothpaste into a collapsible tube, Dr. Sheffield's Creme Dentifrice. He had the idea after his son traveled to Paris and saw painters using paint from tubes.In York in 1896, Colgate & Company Dental Cream was packaged in collapsible tubes imitating Sheffield. The original collapsible toothpaste tubes were made of lead. [26][27] Fluoride was first added to toothpastes in the 1890s. â€Å"Tanagra†, containing calcium fluoride as the active ingredient, was sold by Karl F. Toellner Company, of Bremen, Germany, based upon the early work of chemist Albert Deninger. [28] An analogous invention by Roy Cross, of Kansas City, Mo. , was initially criticized by the American Dental Association (ADA) in 1937. Fluoride toothpastes developed in the 1950s received the ADA's approval.To develop the first ADA-approved fluoride toothpaste, Procter & Gamble started a research program in the early 1940s. In 1950, Procter & Gamble developed a joint research project team headed by Dr. Joseph Muhler at Indiana University to study new toothpaste with fluoride. In 1955, Procter & Gamble's Crest launched its first clinically proven fluoride-containing toothpaste. On August 1, 1960, the ADA reported that â€Å"Crest has been shown to be an effective anticavity (decay preventative) dentifrice that can be of significant value when used in a conscientiously applied program of oral hygiene and regular professional care. The amount of fluoride in toothpastes varies from country to country. In 2006 BioRepair appeared in Europe with the first toothpaste containing synthetic hydroxylapatite as an alternative to fluoride for the remineralization and reparation of tooth enamel. The â€Å"biomimetic hydroxylapatite† is intended to protec t the teeth by creating a new layer of synthetic enamel around the tooth instead of hardening the existing layer with fluoride that chemically changes it into fluorapatite. [29] In June 2007, the US Food and Drug Administration and similar agencies inPanama, Puerto Rico and Australia advised consumers to avoid certain brands of toothpaste manufactured in China after some were found to contain the poisonous diethylene glycol, also called diglycol or labeled as â€Å"DEG† on the tube. [30] Striped toothpaste Striped toothpaste was invented by a New Yorker named Leonard Lawrence Marraffino in 1955. The patent (US patent 2,789,731, issued 1957) was subsequently sold to Unilever, who marketed the novelty under the ‘Stripe' brand-name in the early 1960s. This was followed by the introduction of the ‘Signal' brand in Europe in 1965 (UK patent 813,514).Although ‘Stripe' was initially very successful, it never again achieved the 8% market share that it cornered durin g its second year. Marraffino's design, which remains in use for single-color stripes, is simple. The main material, usually white, sits at the crimp end of the toothpaste tube and makes up most of its bulk. A thin pipe, through which that carrier material will flow, descends from the nozzle to it. The stripe-material (this was red in ‘Stripe') fills the gap between the carrier material and the top of the tube. The two materials are not in separate compartments.The two materials are sufficiently viscous that they will not mix. When pressure is applied to the toothpaste tube, the main material squeezes down the thin pipe to the nozzle. Simultaneously, the pressure applied to the main material causes pressure to be forwarded to the stripe material, which then issues out through small holes (in the side of the pipe) onto the main carrier material as it is passing those holes. In 1990 Colgate-Palmolive was granted a patent (USPTO 4,969,767) for two differently colored stripes. In this scheme, the inner pipe has a cone-shaped plastic guard around it, and about half way up its length.Between the guard and the nozzle-end of the tube is then a space for the material for one color, which then issues out of holes in the pipe. On the other side of the guard is space for second stripe-material, which has its own set of holes. Striped toothpaste should not be confused with layered toothpaste. Layered toothpaste requires a multi-chamber design (e. g. USPTO 5,020,694), in which two or three layers then extrude out of the nozzle. This scheme, like that of pump dispensers (USPTO 4,461,403), is more complicated (and thus, more expensive to manufacture) than either the Marraffino design or the Colgate design.

How organizational citizenship behavior is determined and how it Essay

How organizational citizenship behavior is determined and how it impacts on the efficiency of performance in Ministry of Interior in UAE - Essay Example Organizational Citizenship behavior exceeds the required limits as formal organizational roles require so; it is not possible to hold the staff accountable for failing to undertake it. However, in many occasions, levels of productivity of performance could be sacrificed for the sake of serving colleagues and bossed or serving public objectives at the organizational level. From the practical viewpoint, the significance of organizational citizenship behavior lie in its capability of developing organization’s effectiveness and efficiency though, protecting organization resources, presenting necessary creative and developmental suggestions, achieving the levels resilience in the face of challenges and unexpected emergencies. Introduction and Problem Statement Employment in the government commands the highest level of social responsibility and moral conduct in addressing the needs of the citizenry. This is because government service is essentially public service, which implies a subordination of personal interest and even comfort to the greater interest of the nation and its citizens. Nowhere is there a more fitting application of this construct that in the Ministry of Interior, where the imperative to apply force to ensure law and order is tempered by the need to observe organizational citizenship behaviour in the implementation of its police and security function.

Working With a Family Article Example | Topics and Well Written Essays - 750 words

Working With a Family - Article Example This essay stresses that the migrants are given the opportunity of quality houses and also other social resources. More so, the migration network always paves way for the new migrants to gain information that is related to other economic opportunities and employment that is known to them. For the Political Reasons, these migrants tend to move from one country to another by force. This is due to the constellation of the various interrelated political events like violent persecution, war, oppression, tribal conflicts or unresolved religious and, life-threatening conditions. This paper makes a conclusion that there are three non-mutually principal motive that explain the differences of the migrants. More so, there are also theoretical explanations that can facilitate effective intervention and practice among the policy planners and social work practitioners. These are: Social Assistance, Legal Support and Social support. These are just ways in which these migrants can be supported in three deferent ways. For social support for example, there can be a widely establish social network that can help the migrants to secure jobs within their reach. For legal support, migrants; legal status are of great influence to their adaptation in the society. Economic Assistance involves the ability to improve the lives of the migrants. As a social worker, these are the things that should be given first priority when dealing with migration issues that affects the migrants.

Education - Field Placement Essay Example | Topics and Well Written Essays - 1000 words

Education - Field Placement - Essay Example Furthermore when theoretical lessons were taught, discussion between students was not allowed. The rules were not posted in the classroom but were an understanding between the teacher and the students. 3. Teacher Procedures The most common procedure for distributing materials used by the teacher is emailing these materials to students. Other than this method the teacher also prints class based materials and distributes them physically to all the students in class (Walberg, 2010). These physical materials generally include instructions. The materials in class are collected through email as the students email their work to the teacher. Classroom helpers are assigned by the teacher on a need basis that is when the teacher feels a requirement to do so. These helpers are designated by oral instructions of the teacher. Students can ask the teacher to go to the bathroom at anytime by raising their hand. Moreover the teacher has all the relevant teaching materials well organized before each lesson. 4. Instructional Activities The teacher grabs student attention by pedagogical design and through intervention. The instructions of the teacher are highly simplified to make them clear to all kinds of students in class. In order to refresh the attention spans of children the teacher allows for activities in between theoretical lessons and instructions. ... The students are encouraged to interact with the teacher and amongst themselves but in allocated time spaces. For example the students interact with the teacher at the end of instructions for clarifications. Similarly students are allowed to interact with each other when deemed necessary by the teacher and are allowed free discourse. As the students are working the teacher moves around the classroom in a bid to gauge their efforts at work and advises them for corrections where required. After the end of seat activity the teacher monitors students through effective feedback from the students themselves. 5. Monitoring Student Behavior Groups are formed based on the students’ performance in the last three tests. This method ensures that each group consists of children who perform well, average and poorly. Such group composition ensures that the poor performers learn from those doing better. When working individually the students are seated separate from each other at a specific d istance from each other such that they cannot peak at other’s work. Materials are distributed to students who further disperse them amongst themselves but talking is not allowed while the distribution of materials proceeds. The teacher actively ensures that materials are used safely and intervenes if felt necessary. Talk and movement is neither allowed nor encouraged during work unless absolutely necessary for some reason. The students can grab the teacher’s attention for queries or other reasons by simply raising one hand in the air after which the teacher addresses their concern. Similarly the teacher grabs student attention by either calling their name or pointing to them (Lovat, Toomey, & Clement, 2010). When students work in small groups they are seated together such

The financial crisis and credit crunch that occurred world-wide Essay

The financial crisis and credit crunch that occurred world-wide between 2007-09 - Essay Example Impact of Recession on Economy of United States The main reason behind the occurrence of any recession is decrease in the total expenditure of a country. Real GDP is considered as the most appropriate indicator which gauges an economy’s movement. If the real GDP of any economy speeds up its growth rate, the chances for the economy to grow in the broader respects increases sharply and a â€Å"boom† stage of business cycle can be observed. On the other hand, once people start sensing that their income would no longer be enough to manage their expenditures, they start cutting their expenditures. As a result, the overall confidence level of the people shakes up which in turn leads to a massive decrease in the overall expenditures of the people. The demand side gets shrink thus putting a stoppage to the overall production of the country. In this way, the production process suffers and experiences severe thus inviting a recession. It takes years for the people to believe that their expenditures would be met easily and they would be able to incur expenditure on luxury items (2008 Financial Crisis & Global Recession, n.d.). 1. Residential Investments In United States, the collapse of the housing market and sub prime mortgage was the major reason behind this whole debacle which pushed the US economy into dark valleys of recession. US economy experienced such a massive decline in its real GDP after post Word War II era, but at this time tight monetary policy was the main reason behind the recession. The tumbling situation of the housing market of US stated off showing its deeper effects in the last quarter of 2005 where the growth rate in terms of housing investment remained at breakeven level and did not find any increase. That was the first sign of the recession of the US economy (2008 Financial Crisis & Global Recession, n.d.). First quarter of 2006 reflected a decline of around -3.6% in the residential housing which was the first real shock to the econo mists. But with a massive and sharp decline of -16.6% in the growth rate of US economy buzzed the voice of a major financial crisis which eroded almost everything in later 2008. The same declining phase kept going along till the first quarter of 2009 when they reported a negative growth of around -32%. So overall it is basically the extreme underperformance of the US housing market that lead to a major debacle which turned into a global financial crisis and took every country into its effects (2008 Financial Crisis & Global Recession, n.d.). 2. Labor Market The effect of recession that started off in 2006 due to steep declines in growth faced by the housing market, hit labor market in late 2007. Since the inception of the housing market down fall in late 2006, the unemployment rate remained constant at 4.4%. That unemployment rate of 4.4% lasted till December 2007 and after that it just began to climb up so rapidly that in mid 2009 it reached to more than double of what used to be i n December 2007 such that it amounted to around 9.4% in the mid 2009 which has been the highest unemployment rate since 1983. 3. Business Investments The recession also created mess on different other investment areas such that the all other kinds of investments followed the same track the one followed by residential investment sector. Business investment especially investments in respect of equipments and software started their declining pattern in the beginning of 2008 and the whole