Sunday, January 19, 2020
Synthesis of Cinnamaldehyde from Benzaldehyde
Vidallon, Mark Louis P. Date Performed: February 20, 2012 CHEM44. 1 2LDate Submitted: March 12, 2012 MIXED-ALDOL CONDENSATION Synthesis of Cinnamaldehyde I. Introduction Cinnamaldehyde, cinnamic aldehyde or 3-phenyl-2-propenal is the major constituent of cinnamon oil, extracted from several species of Cinnamomum (C. verum, C. burmanii, C. cassia), under the family Lauraceae, a group of evergreen trees. Cinnamon bark (particularly C. verum) yields 0. 4-0. % oil, which contains 60-80% cinnamaldehyde, 4-5% sesquiterpenoids (? -humulene, ? -caryophyllene, limonene and others), eugenol, cinnamyl acetate, eugenol acetate, cinnamyl alcohol, methyl eugenol, benzaldehyde, benzyl benzoate, cuminaldehyde, monoterpenes (linalool, pinene, phellandrene and cymene), safrole and others (List and Horhammer; Masada; Ravindran qtd. from Khan and Abourashed, 2011). Isolation of cinnamaldehyde from cinnamon oil of Cinnamomum sp. ark, called ââ¬Å"quillsâ⬠, ââ¬Å"quillingsâ⬠, ââ¬Å"feathering sâ⬠and ââ¬Å"chipsâ⬠depending on quality, was first done in 1834 by Dumas and Peligot (Attokaran, 2011). It has been proven that cinnamaldehyde from cinnamon oil has a very high potential in the pharmaceutical industry, aside from its well known role in the food preparation, specifically as spice, odorant and colorant. Several researches have proven the antimicrobial activity of cinnamaldehyde against Salmonella typhimurium and Bacillus subtilis (Council of Europe, 2008).Also, cinnamaldehyde has been proven to inhibit microbial growth of opportunistic human pathogenic fungi, such as Aspergillus niger, Candida albicans and Rhizopus oligosporus, and various bacteria (Escherichia coli, Enterobacter cloacae, Micrococcus luteus, Staphylococcus aureus, Streptococcus faecalis, and others) (Khan and Abourashed, 2011). Several studies have also unraveled the hypoglycemic (insulin-like) and hypolipidemic properties of cinnamaldehyde since it can cause: elevated glucose oxidation and uptake, causing decrease in blood plasma glucose levels; decreased glycosylated hemoglobin, serum total cholesterol and riglyceride levels; increased plasma insulin, hepatic glycogen and high-density lipoprotein; and restored modified plasma enzyme concentrations to almost normal level (Babu, Prabuseenivasan and Ignacimuthu, 2006). Though effective approaches in the isolation of cinnamaldehyde from cinnamon oil from quills, low amounts of pure cinnamaldehyde can only be obtained from effective separation processes. Feature Article Relative Rates:à Free-Radical BrominationDue to this demarcation in the discovery and investigation of other potential medicinal and non-medicinal values of cinnamaldehyde, chemists have also developed synthetic procedures to obtain high amounts of pure cinnamaldehyde, one of which is the mixed aldol condensation of benzaldehyde and acetaldehyde. Mixed aldol condensation is a reaction of different aldehydes or ketones leading to the formation of aldols (? -hydroxyaldehydes) or ketols (? -hydroxyketones), accompanied by the removal of water to result finally to enals (? , ? -unsaturated aldehydes) or enones (? , ? -unsaturated ketones).Aldol additions are due to the reaction of enolate ions of carbonyl compounds (from the reaction of acidic ? -hydrogens of aldehydes and ketones with bases) with the electrophilic centers of other carbonyl compounds. Synthesized aldols and ketols can dehydrate spontaneously or can be dehydrated, especially when heated, to form enals an d enone, the final product(s) of aldol condensations (Moore and Langley, 2010). Possible side reactions were the Canizzarro reaction of benzaldehyde and the self-condensation of acetaldehyde. Minimization of the possibilities of the stated reactions was done by following a special scheme of procedure.Characterization tests that were done in to confirm the identity of the products are boiling point determination, reactions with nitric acid and with sodium bisulfite and derivatization with 2,4-dinitrophenylhydrazine. In the experiment conducted, the objectives of the author were as follows: 1. To synthesize cinnamaldehyde from the base-catalyzed mixed aldol condensation of benzaldehyde and acetaldehyde; and 2. To characterize the synthesized product using its boiling point, results of simple chemical tests and derivatization reactions, along with the determination of the elting points of the hydrazones and comparison of the hydrazones using their RGB values. II. Materials and Methods A. Reagents The following are the reagents were used in the experiment: Benzaldehyde Acetaldehyde 15% sodium hydroxide solution Sodium chloride 95 % ethanol solution 40% sodium bisulfite solution 2, 4-dinitrophenylhydrazine Nitric acid Ice B. Apparatus and Equipment The following are the apparatus and equipment were used in the experiment: 50-mL round-bottom flask 50-mL beaker 10-mL graduated cylinder 10-mL pipet Pasteur pipet Micro distilling flask Test tubes Evaporating dish Thermometer Bunsen burnerMicroreflux Watch glass Iron ring Iron clamp Iron stand Separatory funnel Wire gauze Hot plate Electronic top loading balance Fisher-Johns melting point apparatus III. Schematic Diagrams C. Synthesis of Cinnamaldehyde (in round-bottom flask) 3. 06mL ââ¬â cool in ice bath + 3. 00mL 15% NaOH + 0. 50mL dropwise with swirling + 3. 00mL 15% NaOH + 0. 50mL dropwise with swirling + 3. 00mL 15% NaOH + 0. 68mL dropwise with swirling ââ¬â reflux for 10-15 minutes ââ¬â cool to room te mperature ââ¬â cool in ice bath ââ¬â separate layers Organic layer , very minimal (in 10-mL graduated cylinder) Aqueous layer very minimal, unreactedH2O with Na+ and Cl- Measure amount and save for characterization discard D. Characterization 1. Boiling Point Determination Product (in distilling flask) ââ¬â distill Note temperature at which liquid starts to boil 2. Reaction with Nitric Acid (Test for presence of benzene ring) 1-2 drops of test compound1 (in test tube) + 1-2 drops HNO3 Observe visible changes and temperature changes 3. Reaction with Sodium Bisulfite (Test for presence of carbonyl compounds) 4. 0mL 40% NaHSO3 + 1. 0mL ethanol ââ¬â filter Residue Filtrate Save and label ââ¬Å"alcoholic NaHSO3â⬠1-2 drops of test compound1 (in test tube) + 1-2 drops alcoholic NaHSO3Observe visible changes 4. Derivatization with 2, 4-Dinitrophenylhydrazine 1-2 drops of test compound1 (in test tube) + 4. 0mL ethanol + 3. 0mL ââ¬â filter ââ¬â recrystallize usi ng 95% ethanol Colored hydrazone crystals Determine melting point and RGB values Compared appearance, melting points and RGB values with other hydrazones 5. Combustion Test 2-4 drops of test compound1 (in evaporating dish) ââ¬â flame carefully using Bunsen burner flame Observe flammability, flame color and sootiness and compared with other test substances 1 Compounds to be tested are: cinnamaldehyde (product), benzaldehyde and acetaldehyde.IV. Data and Results Table 1. Observations on the synthesis of cinnamaldehyde. Reagent/Action Taken| Observations| Benzaldehyde| Clear, colorless, dense liquid| Acetaldehyde| Clear, colorless liquid| Sodium hydroxide| Colorless liquid| Benzaldehyde + NaOH| White mixture| Mixture + dropwise addition of acetaldehyde| Yellow oil (upper layer) and off-white lower layer| Reflux| Dark brown, opaque, viscous liquid mixture| Cooling| Formation of layers| Extraction:| | Organic layer| (Upper) Dark brown, opaque viscous liquid with cinnamon scent| Aqueo us layer| (Lower) Light brown, translucent liquid|Product| Dark brown, opaque viscous liquid with cinnamon scent| Table 2. Percent yield of the synthesis of cinnamaldehyde. Compound| Amount (mL)| Benzaldehyde| 3. 06| Acetaldehyde| 1. 68| Cinnamaldehyde:| | Theoretical| 3. 78| Experimental| 3. 46| % Yield| 91. 6 %| Table 3. Boiling points of compounds used and synthesized in the experiment. Compound| Boiling point (oC)| Benzaldehyde| 179| Acetaldehyde| 65-82| Cinnamaldehyde:| | Theoretical| 250-252| Experimental| Decomposed| Table 4. Results of the characterization tests of the product and reactants. Compound| Reaction with HNO3| Reaction with NaHSO3| Observations| (+/-)| Observations| (+/-)| Benzaldehyde| Yellow-orange liquid;Heat production | + | White precipitate | + | Acetaldehyde| Clear, colorless liquid (N. R. ) | ââ¬â | White precipitate | + | Cinnamaldehyde| Two layers: opaque, dark brown (upper) and translucent, chocolate brown (lower) | + | Brown precipitate | + | Table 5. Results of the derivatization with 2,4-DNP. Compound| Observations| Melting point of hydrazone (oC)| Mean RGB Values (in hexadecimal)| | | Theoretical| Experimental| | Benzaldehyde| Orange yellow solids| 255. 25| 218| E7B01A| Acetaldehyde| Crimson red solids| 221. 6| 174| C75B34| Cinnamaldehyde| Red orange solids| 267. 76| Decomposed| AF6D21| Table 6. Observations on the combustion test of the reagents and the product. Compound| Flammability| Flame color| Sootiness| Benzaldehyde| Flammable| Orange| Sooty| Acetaldehyde| Moderately flammable| Blue| Very sooty| Cinnamaldehyde| Very flammable| Orange| Extremely sooty with black residue| Sample Calculations: V benzaldehyde = mol benzaldehyde ? MW benzaldehyde ? 1/? benzaldehyde V benzaldehyde = (0. 03 mol)(106. 12 g/mol)(1. 00 mL/1. 0415 g) V benzaldehyde = 3. 06 mL V acetaldehyde = mol acetaldehyde ?MW acetaldehyde ? 1/? acetaldehyde V acetaldehyde = (0. 03 mol)(44. 05 g/mol)(1. 00 mL/0. 788 g) V acetaldehyde = 1. 68 mL Theoretical yield = mol cinnamaldehyde ? MW cinnamaldehyde ? 1/? cinnamaldehyde Theoretical yield = (0. 03 mol)(132. 16 g/mol)(1. 00 mL/1. 05 g) Theoretical yield = 3. 776 mL %Yield = (3. 46 mL/3. 776 mL) ? 100% %Yield = 91. 6% Maximum loss by solvation V cinnamaldehyde = ? cinnamaldehyde ? solubility in H2O ? V water V cinnamaldehyde = (1. 00 mL/1. 05 g)(4. 09? 10-4 g/mL)[9. 00 mL+(0. 030 mol)(18. 016 g/mol)](1. 00 mL/g) V cinnamaldehyde = (1. 00 mL/1. 05 g) (4. 09? 0-4 g/mL)(9. 54 mL) V cinnamaldehyde = 3. 72? 10-3 mL %Loss by solvation = (V cinnamaldehyde lost/ Theoretical yield) ? 100% %Loss by solvation = (3. 72? 10-3 mL/3. 776 mL) ? 100% %Loss by solvation = 0. 098% V. Discussion Cinnamaldehyde, cinnamic aldehyde or 3-phenyl-2-propenal is the dominant component of cinnamon oil, extracted from several species of Cinnamomum (C. verum, C. burmanii, C. cassia), under the family Lauraceae, a group of evergreen trees. Cinnamon bark (particularly C. verum) yields 0. 4-0. 8% oil, which contains 6 0-80% cinnamaldehyde (List and Horhammer; Masada; Ravindran qtd. rom Khan and Abourashed, 2011), which was first isolated in 1834 by Dumas and Peligot (Attokaran, 2011). It has been proven that cinnamaldehyde from cinnamon oil has a very high potency in the field of medicine, aside from its well known role in the cooking and baking, specifically as spice, odorant and colorant. Several researches have explained and proven the anti-diabetic properties of cinnamaldehyde (Babu, Prabuseenivasan and Ignacimuthu, 2006); also, studies have shown the antimicrobial activity of cinnamaldehyde against Salmonella typhimurium and Bacillus subtilis (Council of Europe, 2008).Cinnamaldehyde has been proven to inhibit microbial growth of opportunistic human pathogenic fungi and various bacteria (Khan and Abourashed, 2011). Though effective approaches in the isolation of cinnamaldehyde from cinnamon oil from quills, low amounts of pure cinnamaldehyde can only be obtained from effective separation proc esses. Due to this demarcation in the discovery and investigation of other potential medicinal and non-medicinal values of cinnamaldehyde, chemists have also developed synthetic procedures to obtain high amounts of pure cinnamaldehyde, one of which is the mixed aldol condensation of benzaldehyde and acetaldehyde.The synthesis of cinnamaldehyde through mixed-aldol condensation was done by mixing, in a cooled microreflux, benzaldehyde, portions of 15% sodium hydroxide solution and acetaldehyde, added in a dropwise manner, and then refluxing the mixture for 15-20 minutes. Isolation of the synthesized cinnamaldehyde was done simply by separating the water insoluble cinnamaldehyde layer from the aqueous layer. Aldol condensation is the reaction of aldehydes and/or ketones leading to the formation of ? -hydroxyaldehydes (aldols) or ? hydroxyketones (ketols), also known as the aldol addition, accompanied by the removal of water molecule (dehydration) from these compounds result finally to enals (? , ? -unsaturated aldehydes) or enones (? , ? -unsaturated ketones) (Moore and Langley, 2010; McMurry and Simanek, 2008; Fox and Whitesell, 2004). Aldol additions are due to the reaction of enolate ions of carbonyl compounds (from the reaction of acidic ? -hydrogen atoms of aldehydes and ketones with bases) with the electrophilic centers of other carbonyl compounds.Dehydration, which can be spontaneous due to formation of a more conjugated system or promoted by heating, then leads to the generation of the ? , ? -unsaturated carbonyl compounds as the final product of the aldol condensation (McMurry and Simanek, 2008; Fox and Whitesell, 2004). Aldol condensations can be classified as simple and mixed-(or cross-) aldol condensation. The difference between the two classifications is that simple aldol condensation utilizes only one aldehyde or ketone substrate while the mixed-aldol condensation uses two different carbonyl compounds as the substrate for the reaction (Fox and White sell, 2004).The mixed-aldol condensation was type of reaction employed in the experiment; however, simple aldol condensation, also known as self-condensation was one of the expected side reactions in the conducted study. The general equation for the synthesis of cinnamaldehyde was: The mechanism of the synthesis reaction can be proposed as: 6. Formation of ethenolate ion nucleophile 7. Aldol addition: Formation of 3-hydroxy-3-phenylpropanal 8. Dehydration: Formation of cinnamaldehyde The initial step done in the experiment was combining 3. 06 milliliter benzaldehyde with three 3. 0 milliliter portions of 15% sodium hydroxide with dropwise addition of 1. 68 milliliter acetaldehyde while swirling the mixture, which was in the microreflux, dipped in an ice bath. Benzaldehyde, followed by 3. 00-milliliter portion of 15% sodium hydroxide solution, was first put into the microreflux instead of the acetaldehyde to prevent acetaldehyde from undergoing self-condensation with the following ge neral equation: Compared to acetaldehyde, benzaldehyde has no 3 ? -hydrogen atoms, which can react with the nucleophile, hydroxide ions, to form a strong nucleophile, the ethenolate ion.Ethenolate ions can attack acetaldehyde instead of attacking benzaldehyde. Thus, benzaldehyde, which can remain as it is in sodium hydroxide, was put in first until the formation and attack of the nucleophile, which was formed right after acetaldehyde was dropped into the reaction mixture. The following is the mechanism of the self-condensation of acetaldehyde, which was minimized by the procedure carried out: Addition of 3. 00-milliliter portions of 15% sodium hydroxide solution, a dilute base, was done to compensate for the combination of benzaldehyde and sodium hydroxide, before adding acetaldehyde.Benzaldehyde reacts with strong, concentrated bases to form benzenecarboxylate and hydroxymethylbenzene; this is known as the Canizzarro reaction. Canizzarro reaction (mechanism shown below) was minimiz ed by the addition of the strong base in small portions, before adding the acetaldehyde, and using a dilute solution of it. Cooling of the mixture in ice bath was done to favor the reaction aldol condensation of benzaldehyde and acetaldehyde, a spontaneous reaction due to the higher degree of conjugation of the product, while disfavoring the self-condensation of acetaldehyde, a heat-requiring reaction (Fox and Whitesell, 2004).Dropwise addition of the enolizable compound, acetaldehyde, was performed to minimize the drastic formation of ethenolate ions while unreacted acetaldehyde molecules still exist in the mixture. The phenomenon was prevented since it would have entailed the self-condensation of acetaldehyde, which could have caused lower yield in the experiment since the reagent would have been consumed in the unnecessary reaction just stated. The microreflux was shaken while the mixture was still being prepared to distribute the ethenolate ions formed though the mixture for the m to react with the electrophile, benzaldehyde.This procedure was also done to minimize the possibility of the self-condensation of acetaldehyde since the ethenolate ions generated were expected to have reacted with benzaldehyde since they were distributed with the aid by shaking before the next drop of acetaldehyde came in contact with mixture. Furthermore, since the reaction mixture was cold, the reaction was expected to be slow; thus, shaking can compensate for the slow movement of molecules and ions in the mixture by somehow supplying the energy needed for the slow-moving benzaldehyde molecules and ethenolate ions to collide.Refluxing was done to: (1) react the still unreacted benzaldehyde molecules and ethenolate ions; and (2) promote the dehydration of the 3-hydroxy-3-phenylpropanal to finally form the 3-phenyl-2-propenal or the cinnamaldehyde. Refluxing intimately mixes substances by increasing the contact between the reactant particles through boiling and evaporation, follow ed by the condensation in the reflux condenser (due to the removal of heat by the cold water flowing in the condenser) and restoration of the synthesized compound and the little (expected) amount of the unreacted reagents on their original vessel (Mayo, Pike and Forbes, 2001).Refluxing the mixture was very advantageous to the conducted experiment since it ensured higher yield and faster dehydration of the 3-hydroxy-3-phenylpropanal, though the stated reaction was expected to be spontaneous due to the higher degree of conjugation of the product (3-phenyl-2-propenal) compared to the 3-hydroxy-3-phenylpropanal. The synthesized cinnamaldehyde was readily separable (solubility of cinnamaldehyde in water=4. 09? 10-4gram/milliliter) with the lower aqueous layer; however, cooling of the mixture was done first to decrease the solubility of the cinnamaldehyde to achieve higher recoverable amount of the product.Liquid-liquid extraction to recover the solvated cinnamaldehyde was not done since the maximum amount of solvated cinnamaldehyde was just 0. 098% of the theoretical yield (see Sample Calculations), thus the recovery of such little amount of product would be wasteful in terms of effort and reagents. Graduated cylinder was used directly as the receiver of the organic layer separated to determine right away the amount of synthesized cinnamaldehyde. The determination of the amount of product in this kind of manner was performed to minimize the loss of products due to the adherence of the very viscous product on the sides of different containers.The amount of the synthesized cinnamaldehyde was found to be 3. 46 milliliter, 91. 6% of the theoretical yield which was computed as 3. 776 milliliter. Possible sources of error in the experiment were: the losses of minimal amount of reagents due to their adherence on the sides of the Pasteur pipets and 50-milliliter beakers; and the losses of the synthesized cinnamaldehyde caused by its adhesion on the sides of the microreflux , surface of the boiling chip and the inside surface of the separatory, caused by the high viscosity of cinnamaldehyde.The lack of further purification process on the cinnamaldehyde, which could still contain traces of benzaldehyde, acetaldehyde and other side products, could also be a factor, leading to the incorrectness of the results of the experiment. The synthesized cinnamaldehyde was expected to be constituted of the cis- and trans- diastereomers; however, it was expected that the trans-isomer was the major component of the product. The reason for the claim was that higher possibility of existence of its trans-isomer-forming transition state conformation compared to the cis-isomer-forming transition state conformation.Elimination to a trans double bond from the staggered conformation of the 3-hydroxy-3-phenylpropanal transition state, wherein the carbonyl group and the phenyl group are in the anti position to minimize the steric effects on the molecule, was still favored, thou gh the carbonyl group is relatively small, compared to the energetically less stable gauche conformation (due to steric interactions of the carbonyl group and the large phenyl group) of the 3-hydroxy-3-phenylpropanal, which can cause the cis-isomer formation (Carey and Sundberg, 2001). (a)(b) Figure 1.Balls and sticks representation of 3-hydroxy-3-phenylpropanal in the conformations for the formation of (a) trans-cinnamaldehyde and (b) cis-cinnamaldehyde. Carbon 2 shadows carbon 3 to show the anti-conformation in (a) and the gauche conformation in (b) of the phenyl and the carbaldehyde groups. Further proof that the formation of the trans-cinnamaldehyde was favored in the reaction was the coplanar arrangement of the highly conjugated aldol condensation product. According to Fox and Whitesell (2004), extended conjugation of the benzene ring with the alkene double bond and carbon-oxygen double bond of the carbonyl group in the ? ? -unsaturated aldehyde product leads to the flat, copla nar arrangement of the product. The p orbital overlap of extensive ? system of the carbonyl group and the alkene is greatest as the ? systems arrange in a single plane, which leads to higher stability of the molecule in terms of the conjugation present. Having a flat product would cause the increased torsional strain on the molecule due to the very close distance of the carbonyl group and the benzene ring. Therefore, cis-benzaldehyde, given the stated situation, is highly unstable and is not preferentially formed over trans-benzaldehyde. (a) (b) Figure 2.Balls and sticks representation of (a) trans-cinnamaldehyde and (b) cis-cinnamaldehyde, viewed at different perspectives to show the differences in the flatness of the two molecules that contribute to their stabilities. Possible side reactions in the experiment conducted were the self-condensation of acetaldehyde and Canizzarro reaction as previously stated along with the preventive measures exercised to minimize their occurrence. S elf-condensation of acetaldehyde was expected to be greatly minimized by the procedure employed and the fact that it is energetically unfavorable, according to Fox and Whitesell (2004).Furthermore, even if the reaction took place, it would have been very minimal since it is a reversible reaction, which was competed with a more favorable reaction that is followed by an irreversible somehow spontaneous dehydration reaction. Depletion of the ethenolate ions (due to the consumption in the addition of benzaldehyde and ethenolate ions, then conversion of the intermediate to cinnamaldehyde) causes the competing self-addition of acetaldehyde to proceed backwards, forming back the acetaldehyde and ethenolate ions, which can be consumed in the aldol condensation of cinnamaldehyde and acetaldehyde.Simple distillation was done to determine the boiling point of the synthesized cinnamaldehyde; however, decomposition was observed in the middle of the procedure, causing the failure of the melting p oint determination attempt; but supported that it was possible that cinnamaldehyde. The observed decomposition can be attributed to the instability of cinnamaldehyde, usually denoted by thickening and decomposition, when exposed for a long time to air at elevated temperatures but lower than its boiling point (>70à °C) (Gholivand and Ahmadi, 2008).Decomposition of natural cinnamaldehyde, however, is not observable in baking and cooking due to the presence of eugenol impurities on cinnamon oil, which has antioxidative properties that protect cinnamaldehyde from heat-induced decomposition (ââ¬Å"Cinnamaldehyde Contentâ⬠). The chemical tests performed were reaction with nitric acid, formation of the sodium bisulfite addition complex and derivatization with 2, 4-dinitrophenylhydrazine.Reaction with nitric acid is a test for the differentiation of aromatic and aliphatic aldehydes. Aromatic aldehydes undergo nitration with concentrated nitric acid under normal conditions. Positive t est results can are color changes and/or heat production. The general equation for the nitration of aromatic aldehydes is: Results of the reaction with nitric acid were shown in Table 4. Figure 3. Test results for the reaction of nitric acid with acetaldehyde (left), benzaldehyde (middle) and cinnamaldehyde (right).Positive test results were observed with benzaldehyde and with cinnamaldehyde by the production of colored mixtures, yellow and brown, respectively, accompanied by heat production as shown by the following specific mechanism: 1. Formation of nitrosonium ion 2. Electrophilic addition of the nitrosonium ion to the aromatic aldehyde (a) Cinnamaldehyde Ortho attack Para attack (b) Benzaldehyde (Meta attack) (c) Acetaldehyde Reaction with alcoholic sodium bisulfite solution is a confirmatory test for aldehydes and ketones, having the following reaction and mechanism: Mechanism:Results of the reaction of the compounds with alcoholic sodium bisulfite solution were listed in Tabl e 4. Positive results were observed with acetaldehyde, benzaldehyde and cinnamaldehyde, which were denoted by the formation of transparent accumulation which turned to white precipitate, white precipitate and brown precipitate, respectively. Figure 4. Test results of the reaction of alcoholic sodium bisulfite with cinnamaldehyde (left), benzaldehyde (middle) and acetaldehyde (right). Sodium bisulfite addition complexes were the observed precipitates of the following reactions:Derivatization with 2, 4-dinitrophenylhydrazine was done to support the identity of the cinnamaldehyde by the determination of the melting point of the hydrazone formed in the derivatization since the boiling point of the cinnamaldehyde was impractical to measure given that it is relatively high and the product, being impure can undergo decomposition. Derivatization with 2, 4-dinitrophenylhydrazine was performed by dissolving the test compound (cinnamaldehyde, acetaldehyde and benzaldehyde) in 4. 00 milliliter of ethanol and adding 3. 0 milliliter 2, 4-dinitrophenylhydrazine solution. The formed precipitate was then filtered and then recrystallized using minimum amount of 95% ethanol solution. The general equation and the mechanism of the reaction can be proposed as: Mechanism: Results of the derivatization, with 2, 4-dinitrophenylhydrazine, were shown in Table 5. The following are the equations for the derivatization of each aldehyde with 2,4-DNP in the experiment: Colors of the derivatives obtained were qualitatively different due to the differences in their degrees of conjugation.Decomposition of the cinnamaldehyde hydrazone was observed, which hindered the determination of the melting point of the hydrazone. Deviations from theoretical melting point values of the two other hydrazones were observed on the experimental melting points gathered. The observed discrepancies maybe ascribed to the efficiency of the Fisher-Johns melting point apparatus and/or the quality of the reagents (benza ldehyde, acetaldehyde and 2, 4-dinitrophenylhydrazine) used.To compensate for the failure in the melting point determination of the cinnamaldehyde hydrazone, the RGB (Red, Blue, Green) values or the web color keywords used by computer monitors to generate colors (McFarland, 2009), of the three hydrazones were determined and tested for significant differences using Analysis of Variance (ANOVA). Figure 5. Isolated and purified hydrazones of benzaldehyde (left), acetaldehyde (middle) and cinnamaldehyde (right). Mean RGB values obtained for cinnamaldehyde, acetaldehyde and benzaldehyde were shown in Table 5.Results of the Analysis of Variance revealed significantly differences among the red values and among the green values of the three hydrazones and no significant differences among the blue values of the hydrazones. Having significantly different values on at least one of the RGB values proves that the composition of the hydrazones was significantly different, thus implying that the p robable presence of benzaldehyde and acetaldehyde in the product was negligible and that cinnamaldehyde can be the compound present.Results of the combustion test were shown in Table 6. Combustion is a chemical reaction between a substance and oxygen that proceeds with the evolution with heat and light as flame (Stoker, 2009). It can be complete, where all of the substance totally undergoes combustion with carbon dioxide and water as the product (general) or incomplete, caused by several factors, which brings about carbon monoxide and elemental carbon formation (soot).Observed differences in the sootiness of acetaldehyde, benzaldehyde and cinnamaldehyde were due to the differences in the number of carbon atoms and the differences in the degrees of unsaturation of the molecules of each of the compounds. Incomplete combustion is generally observed in long chain hydrocarbons and other organic compounds given that oxygen is limited (Johnson, 1999; Macomber, 1996) since oxygen is consume d along with the carbon of the organic compound to produce carbon dioxide while hydrogen atoms are utilized, also along with oxygen, to produce water.Furthermore, unsaturated organic compounds (having as much carbon-carbon double bond) favors incomplete combustion since the number of carbon atoms is relatively higher than the number of hydrogen atoms; excess carbon atoms cannot be used up in the combustion process to produce carbon dioxide (when oxygen supply limited) and thus soot forms (Lister and Renshaw, 2000). It has been show in the balanced equations of the combustion each compound that cinnamaldehyde requires the highest amount of oxygen, followed by benzaldehyde and, lastly, by acetaldehyde.Given that, in the combustion test conducted, oxygen supply was almost uniform among the three, soot formation was predicted to be observed more prominently on cinnamaldehyde (product), followed by benzaldehyde and lastly by acetaldehyde due to the amount of carbon atoms and the relative number of unsaturations on each molecules. The same arrangement was also the experimental arrangement of the compounds with respect to the observed degrees of sootiness after the carried out combustion test.The structure of cinnamaldehyde was supported by the positive reaction of cinnamaldehyde with nitric acid and with alcoholic sodium bisulfite. Though it can be inferred that the detected compound can also be benzaldehyde, the cinnamaldehyde color (yellow to brown), viscosity and the cinnamon aroma of the compound (which are qualitatively different from the color, viscosity and odor of benzaldehyde), the characteristic decomposition of cinnamaldehyde below its boiling point and the results of the combustion test can be used as further evidence of the identity of the compound produced.Possible sources of error in the experiment were the quality of the reagents used, intervals of dropping acetaldehyde on the mixture, lack of further purification process, lack of more evident physic al and chemical characterization method for the product, efficiency of the melting point apparatus utilized and the storage of cinnamaldehyde product for too long prior to derivatization. I. Summary and ConclusionThe special synthesis experiment, entitled ââ¬Å"Mixed-Aldol Condensation: Synthesis of Cinnamaldehydeâ⬠, was conducted to synthesize cinnamaldehyde from the base-catalyzed mixed aldol condensation of benzaldehyde and acetaldehyde; and characterize the synthesized product using its boiling point, results of simple chemical tests and derivatization reactions, along with the determination of the melting points of the hydrazones and comparison of the hydrazones using their RGB values.The synthesis of cinnamaldehyde through mixed-aldol condensation was done by mixing, in a cooled microreflux, benzaldehyde, portions of 15% sodium hydroxide solution and acetaldehyde, added in a dropwise manner, and then refluxing the mixture for 15-20 minutes. Isolation of the synthesized c innamaldehyde was done simply by separating the water insoluble cinnamaldehyde layer from the aqueous layer. Determination of the volume of the synthesized substance was then performed.Chemical test carried out were test for aromatic ring (reaction with nitric acid), test for aldehydes (reaction with alcoholic sodium bisulfite) and derivatization with 2, 4-dinitrophenylhydrazine while the physical characterization test done were boiling point determination using simple distillation and melting point determination of the derivatized hydrazones. RGB values of the isolated and recrystallized hydrazones were obtained and tested for significant differences using Analysis of Variance (ANOVA). It was shown that positive test results were exhibited by cinnamaldehyde and benzaldehyde in their reactions with nitric acid.It was also shown that positive test results were displayed by cinnamaldehyde, benzaldehyde and acetaldehyde in their reactions with alcoholic sodium bisulfite. The boiling po int of the isolated product and the melting point of the cinnamaldehyde hydrazone were not obtained due to the decomposition of the stated compound. However, RGB values of the hydrazones were obtained. Results of the Analysis of Variance of the RGB values of the hydrazones revealed significantly differences among the red values and among the green values and no significant differences among the blue values of the hydrazones.Based on the results, it can be concluded that that synthesized product was different from the starting materials and that it was possible that the product was cinnamaldehyde due to the highly colored hydrazone formed. Though chemical tests were successfully done, boiling point determination of the product and melting point determination of its hydrazone were unsuccessfully performed due to the decomposition of both product and its hydrazone; however, chemical tests done and physical properties exhibited by the compound were considerable as enough indicant of the identity of the compound.Based on the readily perceivable physical characteristics of the compound produced and the results of the chemical tests performed and observed, it can be concluded that the synthesized compound was genuinely cinnamaldehyde. Based on the results of the experiment, it was proven that cinnamaldehyde, constituted primarily of trans-cinnamaldehyde, with a percent yield of 91. 6%, was successfully synthesized using the described procedure of the student.Furthermore, the procedure constructed and performed was proven to have minimized the possible side reactions which could have impeded the yield, physical properties and authenticity of the executed chemical tests. Possible sources of error in the experiment were the quality of the reagents used, intervals of dropping acetaldehyde on the mixture, lack of further purification process, lack of more evident physical and chemical characterization method for the product, efficiency of the melting point apparatus utili zed and the storage of cinnamaldehyde product for too long rior to derivatization. II. References ABOURASHED EA and KHAN IA. 2011. Leungââ¬â¢s Encyclopedia of Common Natural Ingredients: Used in Food, Drugs and Cosmetics. Germany: J. Wiley and Sons. ATTOKARAN M. 2011. Natural Food Flavors and Colorants. Germany: J. Wiley and Sons. BABU P, PRABUSEENIVASAN S and IGNACIMUTHU S. 2006. Cinnamaldehyde: A Potential Antidiabetic Agent. Phytomedicine. 1:15-22. CAREY FA and SUNDBERG RJ. 2001. Advanced Organic Chemistry Part B: Reactions and Synthesis. 4th Ed. USA: Plenum Publishers. COUNCIL OF EUROPE. 008. Natural Sources of Flavorings. France: Council of Europe. FOX MA and WHITESELL JK. 2004. Organic Chemistry. 3rd Ed. USA: Jones and Bartlett Publishers. GHOLIVAND MB and AHMADI F. 2008. Simultaneous Determination of Trans-Cinnamaldehyde and Benzaldehyde in Different Real Samples by Differential Pulse Polarography and Study of Heat Stability of Trans-Cinnamaldehyde. Analytical Letters. 41: 3324-3341. JOHNSON W. 1999. Invitation to Organic Chemistry. USA: Jones & Bartlett Learning. LISTER T and RENSHAW J. 2000.Understanding Chemistry for Advanced Level. China: Nelson Thornes. MACOMBER R. 1996. Organic Chemistry. USA: University Science Books. MAYO D, PIKE R. and FORBES, D. 2001. Microscale Organic Laboratory: With Multistep and Multiscale Syntheses. USA: John Wiley and Sons, Inc. MCFARLAND, DS. 2009. CSS: The Missing Manual. 2nd Ed. USA: Oââ¬â¢Reilly Media Inc. MCMURRY J and SIMANEK E. 2008. Fundamentals of Organic Chemistry. 6th Ed. Singapore: Thomson Learning. MOORE JT and LANGLEY RH. 2010. Organic Chemistry II for Dummies.USA: Wiley Publishing. STOKER S. 2009. General, Organic and Biological Chemistry. USA: Cengage Learning. ââ¬Å"Cinnamaldehyde Content Foods Determined Gas Chromatography-Mass Spectrometryâ⬠. Retrieved from APPENDIX A Randomly Selected RGB Values of Different Hydrazones Table 7. Sample RGB values of acetaldehyde, benzaldehyde and cinnamald ehyde hydrazones and their mean values. Sample No. Acetaldehyde| Benzaldehyde| Cinnamaldehyde| | Red| Green| Blue| Red| Green| Blue| Red| Green| Blue| 1| 202| 90| 52| 203| 168| 25| 185| 107| 22| 2| 189| 85| 50| 239| 170| 17| 173| 106| 53| 3| 195| 97| 58| 233| 185| 25| 185| 114| 22| 4| 206| 101| 54| 236| 171| 43| 174| 102| 18| 5| 199| 80| 40| 232| 176| 19| 173| 109| 37| 6| 201| 81| 57| 236| 181| 29| 174| 123| 40| 7| 201| 99| 59| 236| 179| 28| 170| 103| 24| 8| 198| 92| 42| 232| 178| 18| 164| 105| 45| Mean Values (decimal)| 199| 91| 52| 231| 176| 26| 175| 109| 33| Mean Values (hexadecimal)| C7| 5B| 34| E7| B0| 1A| AF| 6D| 21|APPENDIX B Analysis of Variance (ANOVA) of the RGB Values of the Hydrazones RED Source| DF| SS| MS| FC| FTAB| Treatment| 2| 12682. 75| 6341. 375| 90. 76086216| 3. 466800112| Error| 21| 1467. 25| 69. 86904762| | | Total| 23| 14150| | | | GREEN Source| DF| SS| MS| FC| FTAB| Treatment| 2| 32406. 08| 16203. 04| 328. 5193| 3. 4668| Error| 21| 1035. 75| 49. 32143| | | To tal| 23| 33441. 83| | | | BLUE Source| DF| SS| MS| FC| FTAB| Treatment| 2| 2888. 083| 1444. 042| 1. 039985| 3. 4668| Error| 21| 29158. 96| 1388. 522| | | Total| 23| 4899. 958| | | |
Friday, January 10, 2020
Sociology in Everyday Life
Sociology in Every Life One central and important study of sociology is the study of everyday social life. Everyday life and sociology are definitely two distinct terms and situations, but they hold a close relationship. While sociology studies human interaction, everyday life consists of everyday human interaction. Everyday life is filled by human beings interacting with one another, institutions, ideas, and emotions. Sociology studies the interactions with all of these and shows how mere interaction resulted in things like ideas and institutions.Everyday that you wake up and come into contact with what you do and the people you speak to is sociological. You wake up and interact with objects. Some of these objects you see yourself in such as your clothes, and your music, would be called the sociology of identification. If you live with your parents and siblings, you wake up and interact with them, by saying good morning and having breakfast with them. You recognize and participate i n the family institution. When you go to school, or church, or your job, you know what's expected of you and you know how to act in the way that is labeled normal.Therefore, you interact with a set of norms by conforming to them or breaking them which is deviance. The fact that we have an everyday life in which there are patterns in ways of living is what sets a foundation for sociological analysis and for being a witness in what we do, in order to understand ourselves better. You use sociology in many ways everyday. Race and ethnicity are important concepts in the field of sociology and are ones that are studied a great deal.Race plays a large role in everyday human interactions and sociologists want to study how, why, and what the outcomes are of these interactions. There are several sociological theories about why prejudice, discrimination, and racism exist. Current sociological theories focus mainly on explaining the existence of racism. The three major sociological perspectives are, functionalist theory, symbolic interaction theory, and conflict theory they each have their own explanations to the existence of racism. The Structural-Functional theoryà argues that in order for race and thnic relations to be functional and contribute to the conduct and stability of society, racial and ethnic minorities must assimilate into that society. Assimilation is a process by which minorities gradually adopt patterns of a dominant culture. It is believed that deviance encourages social change. A good example of this would be how race and ethnicity are strongly linked to crime rates. The amount of African Americans that were involved in crimes was a higher proportion than any other race. African Americans makes up 13 percent of the population but were accounted for 28. percent of the arrest. There are several reasons why arrest for African American could be this high but the main cause would probably be because of social standing. Some disadvantages to the African Ame rican population are that white people have an overall higher occupational standing and they also receive schooling beyond high school. Many people of this race are brought into single parent homes which lead to a huge gap in wealth and these children receive less supervision which puts them in a greater risk of living in poverty.Over 40 percent of African American children grow up in poor families leaving the high crime rates to not be a surprise. Prejudice is also another factor to the high crime rates because white police tend to arrest black people more readily. If crime involved drunk driving, business fraud, embezzlement, and cheating on tax returns the white population rate of crime would rise dramatically. These factors have made many people of this race strive for the best while others are still not trying at all.Although we operate from a class system it seems like many African Americans are stuck between a rock and a hard place. Individual achievement isnââ¬â¢t happeni ng. If more people would aim for individual achievement, social standing wouldnââ¬â¢t be such an issue in todayââ¬â¢s time. I believe categorizing people according to their color, sex, or social background is wrong. The only way to overcome these negative stereotypes is to stand above the descriptions that have been applied to your race. I have learned that hardwork is the key to success, whether it is in life, work, or your social standing.Even though social stratification carries over from generation to generation it doesnââ¬â¢t mean you have to have the same life your parents had. Everyone is able to achieve a better life if they work for it. Social stratification is found everywhere and what is equal and unequal is different in all societies. In my society it seems like wealth and power is the key element of difference. People who are poor or have lower position are downed on. While writing this paper, I learned many things. I learned society has a huge impact on my lif e and those around me. Related post: Social Studies SBA on Teenage PregnancyI learned that personal issues can manifest into a social issue that affects the whole society as a whole, just as the major social issues can affect my personal life. Overall, writing this paper has benefited me to look closer at society and see how different issues affect me in my life. References Macionis, J. (2009). Society the basics. (12th ed. ). The sociology of race and ethnicityà . (n. d. ). Retrieved from http://www. trinity. edu/mkearl/race. html Winant, H. (n. d. ). Race and race theory. Retrieved from http://www. soc. ucsb. edu/faculty/winant/Race_and_Race_Theory. html
Thursday, January 2, 2020
Local Hospital Review - 1053 Words
Johnnese M. Jones Local Hospital Reviews MHA 5026 (u02a1) Dr. Beauvais October 20, 2013 Baylor Scott amp; White Health (Dallas, TX and Temple, TX) Scott and White Hospital was founded in 1904 by Dr. Scott and Dr. White and was named Temple Sanitarium. By 1922, Dr. White had passed away and the conversion of the hospital was changed to Scott amp; White Memorial Hospital. It has been comprised of the mission towards delivering an affordable, high quality of healthcare services to all the patients that walk through the doors of Scott and White. Recently, on September 30, 2013, the hospital merged with Baylor Health Care System in Dallas, TX to increase the spectrum of Healthcare in North and Central Texas. It consists of 43â⬠¦show more contentâ⬠¦In Central Texas there are two medical centers in Temple and Waco along with four outpatient clinics in Brownwood, Bryan/College Station, Cedar Park, and Palestine (CentalTexasVA, 2013). The VA also has affiliations with Texas Aamp;M College of Medicine and University of Texas Southwestern Seton Healthcare Network for residents programs for over 1,500 trainees per year medica l students. ï⠷ Type of organization. Organization that is accredited by the Joint Commission Inpatient Clinics for rehabilitation and psychiatric Four Community Based Outpatient Clinics ï⠷ Tax status, for example, For Profit (FP) or Not for Profit (NFP). Does not state (Federal/Government Organization) ï⠷ Key executive leaders: 1. Sallie Houser-Hadfelder, Director 2. William F. Harper, MD, FACP, Chief of Staff 3. Russell E. Lloyd, Associate Director of Resources 4. Karen Spada MSN, MPH, MHA, FNP Associate Director for Patient and Nursing Service 5. Douglas R. Young, Assistant Director for Operations, Waco 6. Andrew Garcia, MHA Associate Director for Operations, Temple ï⠷ Key Web sites: http://www.centraltexas.va.gov/about/index.asp ï⠷ Basic marketShow MoreRelatedThe Department of Veterans Affairs Nsqip1336 Words à |à 6 Pagessurgery of each medical center, comparing local outcomes with those of other (anonymous) VA hospitals and to the performance of all VA hospitals combined. â⬠¢ An annual performance evaluation by an executive committee that communicates praise or concerns about high- and low-performing centers. â⬠¢ The provision of self-assessment tools for use by local centers to improve care. â⬠¢ Structured site visits by a team of experts, when requested by local centers, to evaluate potential problems andRead MoreCare Review of Baby Peter879 Words à |à 4 PagesSerious Care Review of Baby Peter: Baby Peter was admitted at the North Middlesex University Hospital on 3rd August 2007 after his mother called for an ambulance to her home address. Peter was admitted as an apparently lifeless body and was pronounced death after 40 minutes in the hospital despite of attempts by both the ambulance and hospital staff to revitalize him. Based on the initial examination of Peters body, the baby had several marks to his head, bruises in the body, a torn frenum, andRead MoreHospital Management System Chapter 11013 Words à |à 5 Pagescertain amount of time. Great amount of time is being consumed by information storage, retrieval and the billing process of most local hospitals and clinics. To be able to provide the medical needs of the rapidly growing population, local hospitals must be flexible to the current trends and innovation in today s changes in technology. One of the concerns of local hospitals nowadays is how to reduce the number of paper works in having a transaction with the patient that could fasten the process ofRead MoreOnline Upload743 Words à |à 3 PagesHealth Care Insurance The hospital honors major third-party coverage such as Medicare, Medicaid, Workers Compensation and other public assistance. Your third-party coverage may require prior approval of your hospitalization. Failure to obtain prior approval may result in reduced benefits requiring additional uninsured or personal charges. The admitting office can assist you in obtaining prior approval for your hospitalization. We accept commercial insurance and we participate in most managed careRead MoreSt. Marys Hospital Case Essay1644 Words à |à 7 PagesSt. Maryââ¬â¢s Hospital Case Solution 1) Upon the story presented, necessary actions should be taken to overcome the hospitalââ¬â¢s problems. St. Maryââ¬â¢s Hospital last yearââ¬â¢s numbers showed the necessity of such actions. For the first time, since the hospital started operating, they presented deficit on its revenue. St. Maryââ¬â¢s hospital had some major problems in a few departments. During the last few years, the occupancy, or the number of patients in the hospital, has been declining. Such problem is explainedRead MoreAn Investigation At Winterbourne View Hospital843 Words à |à 4 Pagesled to changes in the way care is delivered. These include inquiries at Winterbourne View hospital, Mid-Staffordshire hospital(Mid staffs) and Harold shipman to name a few. At Winterbourne View Hospital, an undercover investigation for the BBC panorama revealed practices that amounted to criminal abuse by staff towards patients. A serious case review set up by the government in collaboration with the CQC, Local NHS and Police found that patients were subjected too many incidences of Physical restraintRead MoreWe Call This A Community Health Needs Assessment ( Chna )1705 Words à |à 7 Pagesare already being addressed, and determine any barriers (Reed Fleming, 2014). For LHD facilities to received accreditation, state laws require CHNAs to be conducted while federal laws require for federally qualified health centers and nonprofit hospitals to conduct CHNAs (Alfano-Sobsey, Ledford, Decosimo, Horney, 2014). Often times, facilities will go beyond their walls and collaborate with other facilities to address the health needs of the community. This will also enable them to establish additionalRead MoreThe Patient Protection And Affordable Care Act Of 2010 Essay917 Words à |à 4 Pagesthe quality of care (Kennedy, Wetzel Wright, 2013). Hospitals may experience a decrease in revenue initially, however, it is theorized that the increase of transparency and accountability will serve as an incentive for improvements in the overall quality of care provided in the United States. Reimbursement under VBP involves both clinical and patient satisfaction targets. In order to measure the patient satisfaction aspect, the Hospital Consumer Assessment of Healthcare Providers and SystemsRead MoreEssay on NTC362 Week 2 INDP part 1703 Words à |à 3 Pagesï » ¿ Integrative Network Design Project, Part 1 NTC/362 Patton Fuller Hospital Patton Fuller is a community hospital that has been proudly serving the community since 1975. Patience care is number one, and they thrive to ensure each of their patients experience is as pleasant as possible. Hospitals are under enormous pressure to treat patients in the most effective and efficient way. By leveraging the best IT systems, health organizations provide the type of patient care withRead MoreHsm 541 Week 2 You Decide1600 Words à |à 7 PagesCOM HSM 541 WEEK 2 YOU DECIDE HSM 541 Week 2 You Decide Scenario Summary You are the new Chief Executive Officer (CEO) of Middlefield Hospital. Middlefield Hospital is a 450-bed tertiary care facility in a major urban area in the Northeast. The hospital is an integrated health system that provides the full array of inpatient and outpatient services. The hospital enjoys a reputation for quality care in the area. As the new CEO, you have learned that the hospitalââ¬â¢s employee turnover rate exceeds
Wednesday, December 25, 2019
The Pain of Essay Talking about Yourself
The Pain of Essay Talking about Yourself What Everybody Dislikes About Essay Talking about Yourself and Why Our order form is as easy as it gets. The structure of private statement is a lot simpler. Therefore, if you begin with a terrible topic, not only will you wind up with a poor essay, but you risk ruining the excellent impression that the remainder of your application makes. The Auto-Save feature will ensure you won't lose any changes while editing, even in the event you leave the website and return later. You might also want to incorporate a brief discussion of more research that ought to be completed in light of your work. The principal idea of all of the criticism is to give an opinion both of positive or negative implication. With the proper focus, you will get there. If you sum up, individuals won't need to read the remainder of your private essay. The One Thing to Do for Essay Talking about Yourself There are broadly four kinds of essays. Formal essays are usually academic in nature and tackle significant topics. In order to comprehend how a personal essay appears like, you ought to go through few successful samples. Irrespective of the quantity or variety of research involved, argumentative essays must set a very clear thesis and follow sound reasoning. You see, the conventions of English essays are somewhat more formulaic than you may think and, in various ways, it can be as easy as counting to five. Before continuing from the debut, readers need to have a fantastic idea about what is to follow in the essay, and they shouldn't be confused regarding what the essay is all about. At times, writers can begin their essay in the center or at the end, instead of at the start, and work backward. To write this kind of essay, the author should have real and extensive understanding of the topic. Essays are extremely personalized. Stephen's essay is rather effective. Writing your essay will be a lot simpler if you find out the entirety of it first and just then return and work out precisely the way that it should start. As soon as you adhere to the above strategies about how to compose a narrative essay about yourself, you'll be in a position to turn your real life into an attractive essay. It is preferable to find professional writing assistance from the corresponding support. Our 1-hour essay writing service may be ideal solution for you. Other essay services might be more efficient when it comes to their operations but they're not quite as effective as us. Today, there are numerous services online that provide essay writing help to people. Needless to say that a few individuals are all set to do anything rather than writing an academical paper. 1 thing to remember is that for your private essay to genuinely stand out, you will need to write about an experience that not everybody goes through. In fact, it is a complicated question to reply. Unique things to various individuals, since the situation demanded. Although you will be focusing on a single component of your life, it will nonetheless convey a lot about your nature and life. If you're like most other young folks, it's still true that you haven't changed the Earth, but you need a bright future ahead. Do not become stuck with material possessions and what you've achieved in life. Therefore, in case you have some really excellent life stories to share, don't hesitate to do it.
Tuesday, December 17, 2019
College Students Cheating and Morality Essay - 2463 Words
Introduction Academic dishonesty is a threat to every student and every institution of higher education. The very act runs contrary to the fundamental values of higher education (Bowers, 1964). Dishonesty compromises the integrity of the individual student as well as the reputation of the institution (Engler, Landau, Epstein, 2008; Gallant, 2008). Many researchers have indicated that cheating is a serious problem on campuses (Bowers, 1964; Engler et al., 2008; Gallant, 2008; Leming, 1978; McCabe, Trevino, Butterfield, 2001). Studies completed by Bowers (1964) and McCabe and Trevino (1996) revealed nearly identical results regarding student-cheating behavior despite the 30 year time span; both studies identified thatâ⬠¦show more contentâ⬠¦The need to systematically foster academic integrity is critical (Whitley Keith-Spiegel, 2001). While the problem of cheating has persisted in higher education, the perceived seriousness of cheating continues to change (McCabe Trevino, 1996; Ste phens, Young, Calabrese, 2007). Notably, students with higher moral development levels view cheating more seriously than those with lower moral development levels (Leming, 1978; Semerci, 2006). While the process of going to college promotes students moral development (King Mayhew, 2002) and higher moral development levels correlate to lower incidences of cheating (Leming, 1978), determining the relationship between the two is necessary. Prior research has demonstrated a positive relationship between higher moral development levels and lower cheating incidences; however, most data is more than 30 years old (Leming, 1978). Since 1978, only three studies have been published relating moral development and cheating (Austin, Simpson, Reynen, 2005; Leming, 1978; Semerci, 2006). Leming (1978) used Kohlbergs (1958) theory of moral development (Appendix B) and James Rests Defining Issues Test (DIT) (1979) (Appendix C), to determine relationships between cheating and non-cheating behav iors. Kohlbergs theory and the DIT have been widely used and proven valid during the past three decades (King Mayhew,Show MoreRelatedFamily Structure Affects Students Academic Life878 Words à |à 4 PagesFamily structure affects studentsââ¬â¢ academic Life Colleen Wenke, a graduate from Boston College, wrote an essay ââ¬Å"Too Much Pressureâ⬠. In the essay Wenke states that the pressure of cheating in school was difficult to overcome because everyone was doing it. She also gives different examples in her essay to illustrate how overcoming cheating was difficult for some students in the 1990s. Cheating can increase by the lack of morality in school and family, family stress on children, and anxiety of failureRead MoreAcademic Dishonesty Essay1197 Words à |à 5 Pagestrendââ¬âacademic dishonesty is on the rise. More than half of college students surveyed admit to at least one instance of serious cheating in the past year (McCabe and Pavela). Information is incredibly easy to access on the Internet, and devices such as iPhones put that power, literally, into the palms of studentsââ¬â¢ hands. Many students entering universities today face extraordinary amounts of pressure for results academically, leading them to believe tha t cheating is necessary to succeed. This mentality is furtherRead MoreEssay on Ethics in Todays Universities1539 Words à |à 7 PagesBeliefs; The universitys role in instilling a moral code among students? None whatever, some argue is an article written by Peter Steinfels. The article focuses on the opinion of several college professors about whether morality and an ethical code of conduct should be taught in universities. The article presents both sides of the argument and quotes from different educators but does not take a stand on whether ethics should be part of the university curriculum or not. My initialRead MoreCheating: Academic Dishonesty and Honor Code974 Words à |à 4 PagesCheating used to be considered an unmentionable sin. However, in this day and age, it has become more common and somewhat of a daily occurrence. Cheating is more widespread today than in the past. According to the article titled Education: The New Morality, cheating has not been an issue of values, but simply one of practicality. This shows that many view cheating as a mere occurrence and something that can often be skipped over. The reason cheating has become such a pervasive movement is becauseRead MoreEssay on Cheating966 Words à |à 4 PagesCheating Cheating used to be considered an unmentionable sin. However, in this day and age, it has become more common and somewhat of a daily occurrence. Cheating is more widespread today than in the past. According to the article titled Education: The New Morality, cheating has not been an issue of values, but simply one of practicality. This shows that many view cheating as a mere occurrence and something that can often be skipped over. The reason cheating has become such a pervasive movementRead More Does the Honor System Work Essay1561 Words à |à 7 Pagesthat continue to cheat at every opportunity. While most colleges and universities would like to think that this does not happen on their campuses, the fact is that it happens everywhere. People have tried solving the cheating problem with various methods, most of which donââ¬â¢t work. The most popular procedure seems to be to spread the students out and keep a close watch. This method is most widely used to make sure that students do not look on each others papers or use a ââ¬Å"cheat sheetâ⬠Read MoreAnalysis Of Laura Bobnaks The Price Of Silence1386 Words à |à 6 Pagesââ¬Å"Now that I am in college, however, I see the situation differently.â⬠In her essay ââ¬Å"The Price of Silence,â⬠Laura Bobnak explains an experience from school in which she learned a valuable lesson. At first, she did not recognize what she had learned in high school, but upon entering college, Bobnak became aware of the influence of her peer groups. She also became conscious of the way those at school influenced her moral judgement. In these situations, an individual must question his or herself, andRead MoreIs Cheating Ethical1654 Words à |à 7 Pagessociety, fairness, or specific virtues. Secondly, ethics refers to the study and development of oneââ¬â¢s ethical standards (Williams, 2010, pp. 2-4). Cheating is defined in the dictionary as, to deceive by trickery; swindle, however the dictionary fails to tell you if it is right or wrong to cheat. People have many different beliefs when it comes to cheating; some think its fine to do while others completely disapprove (Sullivan, 1992). Consequentialism/Utilitarianism: Utilitarianism is the bestRead MoreWhere Do We Draw The Line Between What Should And Should1605 Words à |à 7 Pagesscandal. The dignitaries behind this wrongdoing range from the SMU football coach, Coach Bobby Collins to then Texas Governor, Bob Hitch. These university and state officials felt the pressure to win just like students are now feeling the pressure more than ever to produce the highest college entrance scores and GPA. I understand that moral and ethical development are both enormously important aspects of decision making, but classes focused around these topics should not be a required course by aRead MoreAnalysis of Academic Dishonesty Essay2549 Words à |à 11 Pagescomplications and confusion arises by students and teachers perception of themselves and their role in the problem. I will address the changing culture and how it can be a useful smokescreen that tries to make cheating a social issue as well as a moral one. I will use morality to discredit a view that certain forms of dishonesty are more acceptable than others forms. I hope to end my research by showing that this is a serious problem for all us, if only by the effect cheating can have on the economy. This
Monday, December 9, 2019
A1 Steak Sauce free essay sample
The issue is that retailers generally support only one brand in a particular category in a given week. In recent years A1 has always locked in that spot. Aside from Lawryââ¬â¢s promotion dates, their promotion price is also a major concern. A1 sells over ten percent of their yearly volume each promotion during the summer holiday promotion weeks of Memorial Day and the Fourth of July. Generally A1 would run a fifty cent off promotion with the unit sale price lowered to $4. 49. As the category leader in the steak sauce, A1 has been able to continually increase sales revenue by relying on price increases. The price increase is the primary way that A1 is able to increase revenue since volume has been stagnant the past few years. [Appendix A is a SWOT analysis displaying the internal and external factors that contributes to A1ââ¬â¢s current dilemma] Evaluating Alternatives A1 Steak Sauce has several alternatives to evaluate. We will write a custom essay sample on A1 Steak Sauce or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page A1 can be proactive or reactive. By taking the proactive approach, A1 can beat Lawry at its own game of strategic pricing. Option 1: A1 can directly price match and copy the promotions of Lawry. A1 Steak Sauce will considerably drop its prices, which will clutch all of Lawryââ¬â¢s forecasted sales. However, it will not only affect Lawry but it will decrease A1ââ¬â¢s potential of future revenue too. Option 2: A1 can do a similar price match of a ââ¬Å"two-forâ⬠special. Rather than a two-for-$5, A1 could shoot for a more reasonable approach of two-for- $8. Although both scenarios will require the same amount of units sold (sold in pairs) in order to breakeven. [Appendix B shows Pro Forma for Option 1 and Appendix C shows a Pro Forma for Option 2] A1 can also take a reactive approach by increase its advertising while Lawry is running its two-for-$5 promotion. A1 Steak Sauce can pay for more efficient shelf spacing in the retail outlet. This will include end caps, more facings in the stores, larger and increase signage (bigger and better than what they have done in years past). A1 can also use their brand recognition to their advantage by ensuring more restaurants that publically use A1 display their products, rather itââ¬â¢s on the menu or tables. Currently A1 spends roughly 15% of total revenue on advertising. Option 3: A1 could simply increase their percentage of revenue to marketing and adverting from 15% to 20%. This approach will decrease A1ââ¬â¢s net profit by roughly 7. 5million (with the worst case scenario that A1 will not increase sales at all) but it will allow A1 to increase its brand awareness and make it substantially harder for Lawry to penetrate the market with its new steak sauce. [Appendix D displays A1ââ¬â¢s pro forma with the original 15% of revenue funding its marketing while Appendix E displays an increase to 20% of revenue funding marketing initiatives]Recommendation: Based on the financial analysis of each option, Option 2 would be the best approach for A1. Although each scenario is profitable, Option 2 has more incentives than the other options. Option 2 would be a better deal for A1 because it will generate over 17 million dollars more in profit than Option 1. It will take 38k units to breakeven or 19k pairs on sale for two-for-$8. The breakeven amount is not that far off from what A1 is already accustom to meeting. The price cut alone would be also be great incentive for the customers because they will save $2 ($1 per unit) rather than the normal fifty cent. That $2 reduction will be very favorable for A1 granted that itââ¬â¢s will go into effect during the holiday season when shoppers are looking for a bargain, especially while the cost of beef is going through inflation. Additionally, the amount of money spent on advertising will not increase compared to Option 3, so A1 can stick to their normal tactics and not have to focus on cutting cost elsewhere to cover the increase in advertising. | APPENDIX Appendix A: SWOT Analysis
Sunday, December 1, 2019
Sparta Essay Research Paper The early expansion free essay sample
Sparta Essay, Research Paper The early enlargement of Sparta Sparta is a town located South of the Arcadian Highlandss in Greece. One of a figure of townships that arose on the Laconia field was Sparta, which consisted of Pitane, Mesoa, Limnae, and Conoura, all little small towns. Sparta so conquered other nearby small towns and took over the field of Laconia. Sparta, which may intend? scattered, ? was made up of places and estates spread around an country focus oning on a little hill that came to be named Acropolis. Sparta was unwalled, unlike other ancient metropoliss, until after 200 B.C. The Messenian Wars The go oning enlargement led Sparta to Northeast of Mt. Parnon to get the better of the field of Thyrea, but the Argives defeated the Spartans at the Battle of Hysiae. Sparta lost involvement in that country for more than 100 old ages. The enlargement led toward the West into Messenia a field which was settled by the Dorians. A 19 twelvemonth war began and the Spartans won. Then Messenia gave Sparta their extended land, and when Messenia combined with Laconia, the country was suitably called Lacedaemon. Everyday LIFE IN SPARTA: page 1 Male childs Trained as Combatants Sparta was run like an ground forces cantonment, life was really competitory, and the people lived like barbarians. This manner of life was highly different than the lives of the people that lived in other Grecian communities because they feared that the serfs, or their slaves, would revolt every bit good as other enemies. Spartans were tough people who raised their kids to be tough every bit good. The male childs had to walk around barefoot, and in cold conditions they were allowed to have on merely one cloak. They were starved and told to steal nutrient, but if they got caught they were beaten. This was to learn them to steal more expeditiously in the hereafter. The whip was portion of the upbringing in Sparta, and it was used on younger male childs by the older 1s during stealing competitions. Serfs were slaves that greatly outnumbered the Spartans, and the learning the kids to have was learn the male childs to run runaway serfs. This involves remaining in the countryside undetected for yearss and stealing nutrient to survive. Strength and bravery are necessary traits for the male childs to possess in conflicts against enemies from other provinces. They learn to fear authorization and make what they are told so that when they are in conflict they will non reason bids. In other Grecian metropoliss, the aged were non given every bit much power and regard as in Sparta. page 2 Spartan misss besides trained in sports. They were involved in running, jumping, wrestle, and throwing the discus and the javelin. This was so that they could raise strong healthy kids. Why Spartans despised Family Life Male childs do non ever g o place to their households at dark, and immature married twosomes were non allowed to be seen with one another in populace. Wife and hubby were non meant to go close. Work force of all ages ate in military musss and adult female were non about. That was because the differences created from being raised in separate households can do people dislike one another. Families tend to be loyal to themselves, and this can take to contending with other households. If that happened, Sparta would go vulnerable to the serfs and their other enemies. Encouraging Bravery by Contemning Weakness Spartans were banned from heavy imbibing because this would let the serfs a opportunity to revolt. All other Grecian metropoliss had relaxed and happy times because they did non hold the Spartan? s concerns, and they had spiritual festivals with mass inebriation. page 3 Humiliation was a common pattern to learn younger citizens. A adult male who failed to travel into conflict and battle courageously was made to shave merely one side of his face and turn a face fungus on the other so he could be laughed at and scorned. The Peloponnesian War Athinais wanted to make one province of all the city states and do Athens the capital of all of Greece. Their navy started to assail metropoliss to coerce them to fall in Athenian imperium. Sparta refused to fall in the Delian League, and Sparta, with the aid of other protagonists, formed the Peloponnesian League. The Peloponnesian War lasted for 27 old ages. Finally, a Spartan general, Lysander, defeated the Athenian fleet by a surprise onslaught in the seaport at Aegospotami on the Hellespont. Lysander so sailed to Piraeus, a topographic point where strong metropolis walls linked the metropolis with the seaport, and his ships stopped nutrient from acquiring to Athens. The famishment caused by this action forced Athinais to give up in 404 B.C. When the war was over, the city states were happy to be free of the rough regulation of the Athenian imperium, until they realized that they were in a far worse state of affairs so earlier. Spartan were rough swayers who were non trusters in democracy. The city states rebelled and the powerful Spartans were defeated for the really first clip by a smaller ground forces in the twelvemonth 371 B.C. page 4 The Three Classes of the Spartan State The three categories were the Spartiatai, or true Spartans, the perioikoi, made up of the dwellers of federated towns that surrounded the metropolis of Sparta, and the Helots. Merely the Spartiatai had vote privileges and a say in the authorities. The perioikoi carried on the necessary trade and industry of the state. They were non involved in the authorities, but did hold certain rights. The Helots carried on all the day-to-day work and Sparta was able to concentrate on military preparation. BY: Krystal page 5
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