Posted by admin on Jan 28, 2017 in |
One of the important aspects of modern toxicology research is the prediction of toxicity of environmental pollutants from their molecular structure A Quantitative Structure Toxicity Relationship (QSTR) study was applied to a dataset of 35 polychlorinated dibenzofurans (PCDFs) to investigate the relationship between toxicities of the compounds and their structures. The molecular descriptors were obtained by Density Functional Theory (DFT) (B3LYP/6-31G*) level of calculation. The QSTR model was built using Genetic Function Algorithm (GFA) method. The model with the best statistical significance (N = 24, Friedman LOF = 0.361, R2 = 0.963, R2adj. = 0.955 R2cv = 0.889, R2pred= 0.8286, P95% ˂ 0.05) was selected. The accuracy of the model was evaluated through Leave one out (LOOV) cross-validation, external validation using test set molecules, Y-randomization, and applicability domain techniques. The prediction results are expected to be useful in predicting and identify structural features responsible for the toxicity of the chemicals and other congeneric compounds that fall within the model’s applicability...
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Posted by admin on Jan 28, 2017 in |
This study has been overviewed to observe the nutritional effect of (Spinacia oleraecea) on human health by consuming it in to various form as raw or cooked because of its antioxidant compound, dietary fiber, minerals vitamins, and iron compound prevents ones health from various diseases anaemia, and also it contains many anticancer agents. It also contains omega 3 fatty acids and anti-inflammatory agent. It is concluded that eating fresh green vegetables prevents many diseases, which results in good...
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Posted by admin on Dec 25, 2016 in |
Aim: To study the errors during processing on temporary partial denture. Objectives: To assess the errors during processing on temporary partial denture done by Saveetha Dental College students. Materials and Methods: A questionnaire for assessing the errors in processing temporary partial denture containing 24 questions are administered. The participants are dental students from Saveetha Dental College. Background: Temporary partial dentures are for patients who are missing some of their teeth on a particular arch. Certain kinds of removal partial dentures can be used as permanent tooth replacement system especially for people who aren’t candidates for dental implants or fixed bridges. However the same rigidity and thickness that gives these rigid TPDs their durability can make them uncomfortable to wear, while the acrylic material they are made of is capable of staining and breaking. Overtime, the TPDs are prone to become loose-and they are also easy to flip in and out with the tongue. RPDs must be removed regularly for throughout the cleaning. Partial dentures make it easier for you...
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Posted by admin on Dec 25, 2016 in |
Aim: Calotropis procera is a perennial shrub belonging to the family Asclepiadaceae. The aim and objective of the study are to screen the ethanolic, methanolic, and chloroform extract of leaves for their phytochemical constituents and the comparison of the phytochemical components. Further evaluation of fractions of methanolic extracts of C. procera leaf. Methods: The various extracts viz. ethanolic, methanolic, and chloroform of leaves of Calotropis procera screened for the various secondary metabolites like alkaloids, flavonoids, tannins, glycosides, saponin, proteins, etc. the methanolic extract of C. procera was fractionated by using Column Chromatography with ethyl acetate and acetone. Results: The methanolic and chloroform extract of Calotropis procera shows the presence of alkaloids, glycosides, saponins, flavonoids, and proteins. While the ethanolic extract of C. procera shows the presence of alkaloids, tannins, saponins, protein, and flavonoids. The ethyl acetate fractions mainly contain the flavonoids and...
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Posted by admin on Nov 28, 2016 in |
Aim and Objective: A survey on awareness among dentists about cross infection with questionnaires was conducted. Materials and Methods: A self-administered questionnaire was prepared and given to 100 dental students in Saveetha dental college, Chennai. A set of 15 questions were given in the questionnaire. The results were analyzed and demonstrated in the form of pie charts. Results: Out of 100, 69% of the students knew about cross infection, 100% of the students wore mask while doing a procedure, 100% of students changed their gloves after each check-up, 97% of the students washed their hands after degloving and when the students were asked to rate themselves on a scale of 10 based on the awareness they had about nosocomial cross infection, 18% the students rated them between 7-10 and the rest 82% rated them between 5-7. Conclusion: From the results, it was evident that the students had sufficient knowledge about cross-infection and the only need was to apply the knowledge in their daily...
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