Dont Let These 3 Tools Out of Your Sight

Dont Let These 3 Tools Out of Your Sight Whether you’ve taken a break from work for family or personal reasons or have been in the same job since printer paper had those tear-off edges, it’s important that you keep your skills current. This obviously applies to your technical skills and job-specific responsibilities, but here are some simple professional areas to make sure you’re keeping up with the times. 1. GmailAside from their professional email address (their names @ employer.com), my parents still share a personal email address. Until AOL got hacked a year ago, it was an AOL.com address. This is not how to be current.I give this advice to the college freshmen I teach too- get yourself a gmail address with your real name in it. If yours is taken, try a combination with initials or underscores, but don’t get cute with the numbers. In fact, just don’t get cute at all- avoid RollerSkateDiva@Hotpants.com, for example.2. LinkedInWhile my dad is an avid Facebook oversharer (don’t wor ry, I made sure his profile went friends-only once he retired), my mom doesn’t want her face anywhere on the internet. If she’s looking for a new job someday, I worry that she won’t have the kind of positive professional presence that most employers look for. I’m lobbying to get her to set up a LinkedIn profile- it will only have professional information, it allows her to connect with colleagues and potentially useful members of her extended network, and it puts her firmly in control of the reputation her name has online.If you have a LinkedIn already, congratulations! Welcome to 2009! Make sure your summary has up to date contact info, including phone, your new professional email, and a few highlights from your resume’s achievements section.3. SkypeThis is apparently the post where I heckle my nearest and dearest, but my husband has some kind of Skype-induced rage syndrome. Somehow, every time he logs on to use it when he’s working from hom e or out sick, it won’t load or glitches or takes forever to update (the way programs you haven’t opened in a million years often do).My recommendation, should you be in the market for interviews that may ask you to call in over Skype, is to set up your profile (and give it a professional, recognizable handle) a few days early, and practice with a friend or relative you should really be calling more anyway. Practice logging in, locating your contact, initiating and receiving a call, and hanging up so you’ll be ready and professional come game time.  Staying Current is Key to Managing a Successful Career  Read More at www.social-hire.com

Why Soda Is Bad for Your Teeth

Why Soda Is Bad for Your Teeth Youve heard soda is bad for your teeth, but it is really true? If it is, why is it bad? Answer: Yes, soda damages your teeth. Drinking a carbonated beverage is actually one of the worst things you can do for your dental health. The reason is because the carbonation that makes soda bubbly also makes it extremely acidic. Many sodas also contain citric acid, which gives the drink a tangy flavor, but destroys teeth. Its a one-two punch with sweetened sodas, because the low pH attacks tooth enamel, while the sugar feeds bacteria that cause decay. Youre not off the hook drinking diet soda, because its mainly the acid in soda that harms teeth. How To Minimize Damage To Teeth From Soda The best way to minimize damage to your teeth from soda is to avoid drinking it. If you cant give it up, try to reduce how often you drink it and follow these tips: Avoid colas and regular orange soda. Regular, diet, or flavored cola is the most acidic. The one with the highest sugar content is regular orange soda. Consider testing a sweetened soda to see how much sugar it contains. The results may surprise you! Non-colas drinks are still terrible for your teeth because they contain higher levels of citric acid. The pH of these drinks may be higher, but citric acid binds to calcium and erodes enamel.Sip soda through a straw. Drinking through a straw minimizes the contact between teeth and the acidic drink.If you must drink soda, try to have it with food rather than by itself. Food helps regulate the pH inside your mouth, limiting the acid attack on teeth.Rinse your mouth with water after drinking soda. This will help neutralize the pH and reduce the level of sugar. Alternatively, eat a dairy food. Dairy products help remineralize tooth enamel. You could also chew on a crunchy vegetable or xylitol-containing gum. This helps clean teeth.Dont brush your teeth right after drinking a soda. It sounds like it would be a good idea, but it actually makes a bad situation worse because the mechanical action of the toothbrush erodes weakened enamel. Allow at least half an hour after drinking soda (or eating anything acidic, like citrus or sour candy) before grabbing the toothbrush. Switch to root beer. Genuine root beer contains natural carbonation, so it doesnt contain the same levels of destructive phosphoric acid or citric acid. You can test how bad soda is for your teeth. If you can get hold of teeth (they dont need to be human teeth), soak them in soda and watch how quickly the dissolve. An easier option is to soak chicken bones. Bones arent quite as hard as teeth, but are chemically similar. The acid strips calcium from teeth and bones. Bones are left rubbery because they contain a lot of collagen. Teeth dissolve almost completely.

Foundation - DBQ 1 Assignment Example | Topics and Well Written Essays - 250 words

Foundation - DBQ 1 - Assignment Example Therefore, a strong foundation entails the development of a framework that provides for the development of school counselling programs. This will ensure that counselling professionals do not address issues when they arise, but develop strategies that ensure issues do not occur. In addition, the prior development of the foundation ensures that the school counselling program is comprehensively integrated into the schools mission (Young and Kaffenberger 20). The integration of the program will ensure that each student in the school is included in the program, irrespective of whether the student indicates problems that require counselling or those that do not. Establishing a foundation before counselors can delve into the counselling curricula facilitates the identification of the key components of a developmental school counselling program (Young and Kaffenberger 6). Furthermore, critical factors such as the skills, attitudes and knowledge that students should acquire as a result of the schools’ counselling program are identified before the counselors can begin their work. Therefore, the development of this foundation ensures that the schools counselling strategy is comprehensively designed and delivered systematically for each and every student in the school. Evidently, the foundation of the schools counselling program can be described as program standards that facilitate consistency in the creation, design and implementation of these programs in schools. Young, Anita and Carol Kaffenberger. Making DATA work: A process for conducting action research. Journal of School Counselling 11 (2013): 1-31. Web. 12 September 2014.

Health Care Disparities in the United States Research Paper

Health Care Disparities in the United States - Research Paper Example Yes, it is possible to eliminate health disparities in the United States. Eliminating the disparities that exist in healthcare is politically sensitive and rather challenging because they are somehow intertwined with a controversial record of race relationships in the US. Â  Some of the approaches that can be applied in eliminating health care disparities include increasing the competence and number of healthcare practitioners in areas which are underserved, expanding health insurance coverage, increasing the awareness base on root and arbitration to decrease the occurrence of health care disparities and raising community and health care practitioners understanding of racial or ethnic health care disparities. These strategies combined with others by the government are bound to be successful in eliminating health care disparities in the US. Â  The similar theme is that exists in the assigned articles is that eliminating health care disparities is key to improving the general quality of health care provided in the US. Most Americans do not often receive the quality health care that they deserve or on other occasions, the health care they get causes them harm (Williams, 2007). It is such incidences that have resulted in health care disparities in America.

Should central banks be independent Essay Example | Topics and Well Written Essays - 1000 words

Should central banks be independent - Essay Example They all have different origins hence the difference in the roles and functions that they are expected to play. While some of them were established as a special purpose upon which the government banks were brought up to bring about order in the way that bank notes are issued, others were developed to act as sources of funding for the governments (Downes & Vaez-Zadeh 92). There are other central banks that started off as large commercial banks that dominated and subsequently were able to boost the economy by offering the monopoly rights to provide bank notes. Most of the central banks started their operation during the 20th century as central banks that held the public policy agencies to conduct the functions related to central banking. However, the bundles of functions associated with the central bank have always differed in a substantial way from one country to the other. In this paper the main functions and roles of the central banks will be analyzed and an evaluation performed o w hether the central banks should be made independent (Touffut 52). The key functions of the central bank revolve around the fact that the central bank is an agency that is expected to perform the conducts of monetary policy and provide the means through which it can be settled. In the past, they functioned as the government’s bankers, the monopoly of issuing notes, the banker’s bank, the last resort lender, controller and regulator of credit and the maintenance of external stability (Goodhart xiii). The most important function of the central bank has been linked to the role of financial stability. However, it is considered as the objective that extends or goes beyond the objectives of functions, which contribute towards financial stability. Nonetheless, it is still applicable in many countries where for example in China, it is the role of the People’s bank to ensure that financial risks are mitigated with the effort to provide financial stability

Laboratory Report on Properties of Carboxylic acids

Laboratory Report on Properties of Carboxylic acids Ramona Mae S. Rajaratnam Abstract: This report presents the different properties of carboxylic acids including solubility, acidity of some carboxylic acids, difference in strength of carboxylic acids compared to phenols, action of oxidizing agent on the carboxylic group and the neutralization equivalent of carboxylic acids. Carboxylic acids like acetic acid, butyric acid, oleic acid, succinic acid, stearic acid and benzoic acid were each mixed with water to test their solubility. The same acids were each mixed with 10% sodium bicarbonate to test their acid strength. The typical pKa values of carboxylic acids, phenols, HCO3 and CO32- were used to compare the acid strength of carboxylic acids with phenols and to judge whether both Na2CO3 and NaHCO3 can be used to successfully separate phenols from carboxylic acids. Carboxylic acids like acetic acid, formic acid, lactic acid, succinic acid and oxalic acid were each mixed with 0.5% KMnO4 to look at the action of KMnO4, an oxidizing agent, on the carboxylic acid group. Thi s report also focuses on the finding the neutralization equivalent to determine the unknown molar mass of a carboxylic acid. An accurately weighed sample of an unknown carboxylic acid was dissolved, heated and titrated with a previously standardized NaOH solution to find the neutralization equivalent and ultimately, the molar mass of the unknown carboxylic acid. Introduction: This experiment focuses on the different properties of carboxylic acids. The experiment aims to compare the solubility of acetic acid and stearic acid in water and to describe the relationship between molecular weight and solubility of carboxylic acids in water. The experiment also intends to infer the relative acidities of carboxylic acids and phenols based on the relative differences of their reaction with NaHCO3 and explain how NaHCO3 can be used to separate a mixture containing a water-insoluble carboxylic acid and a water insoluble phenol. The experiment also aims to identify reducing acids and the functional groups responsible for their reduction potential. The experiment also intends to describe a physical property such as physical state, color, odor or solubility that can differentiate succinic acid and oxalic acid, acetic acid and lactic acid, acetic acid and formic acid, benzoic acid and stearic acid and acetic acid and butyric acid. And lastly, the experiment looks into th e determination of the neutralization equivalent and molar mass of an unknown mono- and dicarboxylic acid. Experimental Details: The following apparatus were used in the experiment: Vials Vial rack Micro spatula Dropper Test Tubes Test Tube Rack Weighing boat 50 mL Buret Iron stand Buret clamp Erlen Meyer flasks Funnel Corks Graduated Cylinder Bunsen burner Wire gauze Test tube brush Vial brush Safety goggles The following materials were used in the experiment: Distilled water Acetic acid Butyric acid Oleic acid Stearic acid Succinic acid Benzoic acid Formic acid Lactic acid Oxalic acid 10% NaHCO3 0.5% KMnO4 0.09413 M NaOH Bromthymol blue indicator unknown carboxylic acid (at least 0.2 g) The following procedures were carried out in the experiment: a. Solubility in Water. The solubility of carboxylic acids in water was tested by mixing water with the following acids: acetic, butyric, oleic, stearic, succinic and benzoic. Three drops of the liquid or one micro spatula of the solid acid were added to 2 mL of water. The qualitative results obtained with the solubilities listed for the compounds were checked in a chemical handbook. The data were tabulated. b. Reaction with 10% Sodium Bicarbonate. The solubility test of the same acids was repeated with 10% sodium bicarbonate solution. Three drops of the liquid or one micro spatula of the solid acid were added with 2 mL of 10% sodium bicarbonate solution. The evidence for reaction when water soluble acetic acid and succinic acid when added to reagent was noted. The typical pKa values of carboxylic acids, phenols, HCO3 and CO32- were compared. c. Action of an Oxidizing Agent on the Carboxylic Acid Group. Five drops of acetic acid were added to three to five drops of 0.5 KMnO4 in a vial. The test was repeated with the following acids: formic, lactic, oxalic and succinic. d. Neutralization Equivalent of Carboxylic Acids. A 0.2 g sample of unknown carboxylic acid was weighed accurately to four significant figures. The acid was dissolved in 50 mL water or ethanol. The mixture was heated to dissolve completely the compound. The solution was titrated with a previously standardized NaOH solution. A bromthymol blue indicator was used. The neutralization equivalent and molar mass of the unknown carboxylic acid were calculated. Results and Discussion: Carboxylic acids are organic compounds containing a carboxy group (COOH). The carbon atom of a carboxy group is surrounded by three groups, making it sp2 hybridized and trigonal planar, with bond angles of approximately 120Ã ¢-Â ¦. Figure 1: Carboxylic Acid structure Carboxylic acids exhibit dipole-dipole interactions because of their polar C-O bond and O-H bond. They also exhibit intermolecular hydrogen bonding because they possess a hydrogen atom bonded to an electronegative oxygen atom. Carboxylic acids are one of the most polar organic compounds. Most carboxylic acids exist as cyclic dimmers, held together by two hydrogen bonds. Figure 2: Carboxylic acid dimer Acetic acid is soluble in water. Carboxylic acids with less than 5 carbons in their alkyl group are soluble in water. The carbon skeleton is not too large for the OH group to solubilize by hydrogen bonding. The hydrophilic nature of the carboxylic group dominates than the hydrophobic nature. This is the reason why acetic acid and butyric acid are soluble in water. Figure 3: Acetic acid and butyric acid On the other hand, oleic acid and stearic acid are insoluble in water. Both have long, bulky carbon chains exceeding the five carbon limit. The OH group cannot solubilize the carbon skeleton via hydrogen bonding. Its hydrophobic character dominates than its hydrophilic nature. Figure 4: Oleic acid Figure 5: Stearic acid A good solvent for stearic acid would be organic solvents like ether, chloroform and carbon tetrachloride. Figure 6: Solvents for stearic acid Benzoic acid is insoluble in water because the benzene ring is too bulky and large, and because of its stability, the OH group cannot solubilize it using hydrogen bonding. Figure 7: Benzoic acid Succinic acid contains two COOH groups because it is a dicarboxylic acid. This tells us that there is an increase in the hydrogen bonding capacity which makes it slightly soluble only because the carbon chain exceeds the five carbon chain limit and its hydrophobic character also shows. Figure 8: Succinic acid Carboxylic acids readily react with Bronsted Lowry bases to form carboxylate ions which are done through deprotonation. Figure 9: Carboxylic acids react with sodium carbonate In the experiment, sodium bicarbonate was used to deprotonate the carboxylic acid. This was a simple neutralization reaction forming a carboxylate salt, carbon dioxide and water. Acetic acid, butyric acid, succinic acid and benzoic acid react with the sodium bicarbonate. Succinic acid undergoes two deprotonation steps because it contains two COOH groups. An acid can be deprotonated by a base that has a conjugate acid with a higher pKa. The pKa values of acetic acid, butyric acid, benzoic acid and succinic acid are all ~5, thus bases that have conjugate acids with pKa values higher than 5 are strong enough to deprotonate them. Oleic acid and stearic acid have pKa values of 9.85 and 10.15 respectively. These pKa values are higher than the conjugate acid of the base (NaOH) which is H2CO3. This tells us that sodium bicarbonate is not strong enough to deprotonate both carboxylic acids. Stronger bases are needed to deprotonate them such as NaOH which has a conjugate acid with a pKa of 15.7. Figure 10: Dissociation and pKa values of carboxylic acids When comparing the pKa values of carboxylic acids and phenols, phenols always have a higher pKa value which tells us that phenols are weaker acids than carboxylic acids. Figure 11: pKa values of phenol and carboxylic acid Carboxylic acids and phenols are both acidic. Looking into the Arrhenius definition of an acid, both when dissolved in water, increases the H+ concentration. Also looking at the Bronsted-Lowry definition of an acid, acids are proton donors. Figure 12: Bronsted Lowry definition of an acid Aside from these two famous definitions of an acid, we must also look into the stability of the conjugate base. A rule states that anything that stabilizes a conjugate base makes the starting reagent acidic. When we talk about phenols, its conjugate base which is the phenoxide is resonance stabilized. It has five resonance structures which disperse the negative charge to three carbons and one oxygen atom. This makes phenols more acidic than alcohols which cannot stabilize its conjugate base via resonance. When we compare phenols with carboxylic acids, carboxylic acids are stronger compared to phenols. For carboxylic acids, their conjugate base which is the carboxylate ion is a lot more stable because they contain two oxygen atoms that delocalize the negative charge. As an effect, carboxylic acids are stronger acids than phenols which is evident in their pKa values. Looking at the pKa values of phenols and carboxylic acids, we could conclude that NaHCO3 can be used to separate a water insoluble carboxylic acid and a water insoluble phenol considering that this insoluble carboxylic acid does not exceed the pKa value of HCO3 (when protonated H2CO3 which is the conjugate acid) which is 6.4. Sodium bicarbonate can successfully separate a water insoluble phenol and a water insoluble carboxylic acid because typical pKa values for phenol which is 10 exceeds 6.4. The NaHCO3, therefore, is not strong enough to deprotonate the phenol but is strong enough to deprotonate the carboxylic acid. It will most likely form two layers: an organic layer with the phenol and an aqueous layer with the water and carboxylate ion which are products of the reaction of the carboxylic acid with the base. Sodium carbonate is not effective in separating a mixture containing a water insoluble carboxylic acid and a water insoluble phenol. The pKa of CO32- (when protonated becomes HCO3) is close to 10. This tells us that Na2CO3 reacts with some of the phenol and ofcourse with the carboxylic acid. Thus, no complete separation between the two occurs. Figure 13: Sodium bicarbonate and sodium carbonate Some carboxylic acids undergo oxidation. These are called reducing acids. In the experiment, lactic acid, formic acid and oxalic acid are all oxidized to carbon dioxide and water with the presence of a brown precipitate which is the reduced KMnO4. Acetic acid and Succinic acid are both non-reducing acids because they do not oxidize in the presence of a strong oxidizing agent, KMnO4. Lactic acid is oxidized into pyruvic acid because it contains an oxidizable group which is OH. Figure 14: Oxidation of lactic acid Formic acid is oxidized to carbon dioxide and water. Figure 15: Oxidation of formic acid Oxalic acid also oxidizes into carbon dioxide and water. Figure 16: Oxidation of oxalic acid The neutralization equivalent of an acid is mathematically defined as: Neutralization equivalent (NE) = To determine the molar mass: Molar mass = (X) x neutralization equivalent *Where X is the number of COOH groups The molar mass of an unknown carboxylic sample could be determined by computing its neutralization equivalent. Finding the neutralization equivalent requires titrating the solution of unknown carboxylic acid with a previously standardized solution of NaOH. The exact molarity of the NaOH was found to be 0.09413 M. Two trials were carried out in this section of the experiment. The solid form of the unknown carboxylic acid was water soluble. Weighing of sample: Titration: Computations: Trial 1: Volume of NaOH used = Final buret reading – Initial buret reading = 33.80 mL – 0.50 mL = 33.30 mL Neutralization equivalent (NE) = = = 66.36 g/mol Molar mass = 2 x (66.36 g/mol) = 132.72 g/mol Trial 2: Volume of NaOH used = Final buret reading – Initial buret reading = 32.50 mL -0.30 mL = 32.20 mL Neutralization equivalent (NE) = = = 66.35 mL Molar mass = 2 x (66.35 g/mol) = 132.70 g/mol Average molar mass = = 132.71 g/mol This molar mass was determined to be 95% near the true molar mass of the unknown carboxylic acid. Calculations for determining identity of unknown: = 139. 69 139.69 – 132.71 = 6.98 (error) For MM1 = 132.71 +6.98 = 139.69 MM2 = 132.71 – 6.98 = 125.73 For the 1st probable molar mass: 139.69 – 90.02 (2 X molar mass of COOH) = 49.67 CnH2n = 49.67 (12.01)n + (1.00)2n = 49.67 14.01 n = 49.67 n= 3.5/4 For the 2nd probable molar mass: 125.73 – 90.02 (2 X molar mass of COOH) = 35.71 CnH2n = 35.71 (12.01)n + (1.00)2n = 35.71 14.01n = 35.71 n= 2.5/3 Possible identities for the carboxylic acid include Glutaric acid, Glutaconic acid and Adipic acid. Conclusion: Therefore, the solubility of different carboxylic acids can be rationalized from the structure of the carboxylic acid itself. Acetic acid and butyric acid are soluble since their OH groups are able to solubilize their alkyl chain which does not exceed five carbons. Oleic acid and stearic acid are insoluble in water because their alkyl chain exceeds 5 carbons and the OH group cannot solubilize the long, bulky alkyl chain. A good solvent for stearic acid would be organic solvents like ether, chloroform and carbon tetrachloride. Benzoic acid is insoluble in water because the benzene ring, due to its stability, cannot be solubilized by the OH group. Succinic acid on the other hand, is soluble in water due to greater capacity of hydrogen bonding because it has two OH groups. Carboxylic acids also react with sodium carbonate through deprotonation. Only acetic acid, succinic acid, benzoic acid and butyric acid give a reaction because these acids have a lower pKa value than the conjugate aci d of the base which is NaHCO3. Oleic acid and Stearic acid do not react with NaHCO3 because they have higher pKa values than the conjugate acid of the base. This tells us that sodium bicarbonate is not strong enough to deprotonate both carboxylic acids. The rule here is: an acid can be deprotonated by a base that has a conjugate acid with a higher pKa. By looking at the pKa values, phenols are weaker acids than carboxylic acids. Phenols are resonance stabilized by carboxylic acids is more stable because they have conjugate bases with two oxygen atoms which delocalize the negative charge. NaHCO3 can be used to separate a mixture containing a water insoluble carboxylic acid and a water insoluble phenol because phenols do not react with this because it has a higher pKa than its conjugate acid. Na2CO3 is not effective because both phenols and carboxylic acids react, therefore, no separation occurs. Some carboxylic acids react with KMnO4 and are oxidized. Examples are lactic acid which i s oxidized to pyruvic acid and formic acid and oxalic acids which are oxidized to carbon dioxide and water. Non-reducing acids include acetic acid and succinic acid. And for the last part of the experiment, the molar mass of an unknown carboxylic acid may be determined by identifying how many COOH groups are present and by computing its neutralization equivalent. Neutralization equivalent (NE) = Molar mass = (X) x neutralization equivalent Supporting information: In determining the molar mass or formula for an unknown carboxylic acid, it may be possible to have an unsaturated compound. If the molecular formula is given, plug in the numbers into this formula: DoU= C= number of carbons N= number of nitrogens X= number of halogens (F, Cl, Br, I) H= number of hydrogens References: Organic Chemistry by John McMurry Organic Chemistry by Janice Smith http://chemwiki.ucdavis.edu/Organic_Chemistry/Hydrocarbons/Alkenes/Properties_of_Alkenes/Degree_of_Unsaturation Wikiperdia.org www.studymode.com

The Law of God and the Laws of the Cities in Philo of Alexandria :: Philosophy Philosophical Papers

The Law of God and the Laws of the Cities in Philo of Alexandria ABSTRACT: I evaluate the position of philosophy within Philo’s theory of education as well as its relation to encyclical studies and to the highest forms of knowledge. According to Philo, true knowledge is knowledge of the law of God. Such is the role of philosophy. There exists a strong relation among the various fields of study reflecting the order that exists in all spheres of reality. Order and harmony are the same in an individual, in a state, and in the cosmos. Order and harmony reflects the law set down by God, who is both creator and foundation of such an order. The study of higher truth and the attempt to reach wisdom enlightens secular knowledge and behavior as well. The question is not merely one of maintaining political order; it is, rather, one of adhering to the order established by God. Such order is not open to discussion or alteration. My aim is to study the position of philosophy within Philo's theory of education, its relation to encyclical studies and to the highest forms of knowledge. As true knowledge is the knowing of the law of God and all the studies should aim to transmit and explain it, philosophy gets its role within this view point. There is a strong relation among the various fields of study, as one and the same the order is in all the different spheres of reality. Order and harmony in an individual and in a state are the same as in the cosmos; they are the order and the harmony of the law set down by God, who is both creator and foundation of such order. So, one and the same the law is for an individual, for a state, for the cosmos.(1) Thus the study of higher truths and the attempt to reach wisdom enlightens also secular knowledge and behaviours. There is no difference between unbalance within a city and within a soul; the first relies on the second and the transgression of the Law consists in abandoning the observance of divine word. It isn't only a question of knowing how to maintain a situation established by rulers or by individuals ethically engaged, but also of following an order and a law which come from God, which, as such, are not discussable and alterable. However, many peoples in the world don't relate to divine law.