ABSTRACT
Background: Exam anxiety is a global troublesome psychological problem, impairing the academic perfor-mance of medical students. This study was planned to estimate the prevalence and associated risk factors of Exam anxiety among Indian medical students Methodology: A cross-sectional analytical study was conducted among 230 Indian medical undergraduate students. Westside Test Anxiety Inventory (WTAI) was used to estimate the level of Exam anxiety among medical students. We utilized multivariable logistic regression to identify independent risk factors among medical students. Results: The prevalence of high Exam Anxiety among medical students was 49.6 % (95% CI 43.9-57.0). The mean age of the students was 21.3 years. Multivariable logistic regression revealed the presence of excessive course load [AOR=2.22,95% CI:(1.03,4.78)], the presence of psychological stress [AOR=2.89,95% CI:(1.51,5.48)] and low self-esteem [AOR=8.15,95% CI:(1.51,43.96)] to be independent risk factors for exam anxiety. Conclusions: Our studyfindings suggest that the prevalence of Exam anxiety is very high among Indian un-dergraduate medical students. Our study also showed that the perception of excessive course load, psycholog-ical stress and low self-esteem were the independent risk factors in medical students.
ABSTRACT
Introduction: Protocol for immunocytochemical (ICC) staining in May-Grünwald Giemsa (MGG)–stained smears has been difficult to establish. It is the need of the hour to be able to use prestained slides for ICC in specific cases to deliver timely diagnoses and reduce inconvenience to patients. Aims and Objectives: To evaluate and compare the use of MGG-stained smears for the purpose of ICC, after de-staining and saline rehydration to that of routine standard ICC. Materials and Methods: A prospective study was conducted on 40 FNAC samples: 25 cases of breast disease and 15 cases of reactive lymphoid hyperplasia known to express pancytokeratin and leukocyte common antigen (LCA)/CD45, respectively. Air-dried smears of each case were stained by standard MGG stain and after the report was dispatched, one smear was selected and sent for ICC. The smears were analyzed to determine the overall result and grade each smear semi-quantitatively with respect to staining-intensity, stain-localization, staining-uniformity, counter-staining, and background-staining. Observations and Results: The proposed protocol was inferior to conventional ICC in all the parameters, more pronounced in pancytokeratin than LCA/CD45. Only 8% of air-dried smears stained for pancytokeratin showed optimal stain intensity (as opposed to 44% of wet-fixed smears), whereas only 14.3% of air-dried smears were optimally stained for LCA (as opposed to 85.7% of wet-fixed smears). Conclusion: The proposed protocol of de-stained Giemsa smears as an alternative to conventional technique for ICC was unsuccessful in giving satisfactory results.
ABSTRACT
Molecular geometries of some substituted (pyrroloamino)pyridines which possess anti-Alzheimer activity were optimized and potential-derived CHelpG point charges were computed using ab initio SCF molecular orbital approach employing the 3-21G basis set. AM1 molecular orbital calculations were performed using these optimized geometries and thus optimized Hybridization. Displacement Charges (HDC) combined with Löwdin charges continuously distributed in three dimension were obtained. Molecular electrostatic potential (MEP) maps of the molecules were obtained in two ways: (i) using the HDC-based model with the help of which MEP minima near the molecules were located, and (ii) using the CHelpG point charges, MEP values on the van der Waals surfaces of the molecules were computed. The MEP maps computed using both the methods have negative MEP regions near the pyridine nitrogen atom which appears to be the main binding site of the molecules with the appropriate receptor. Both electrostatic interaction and lipophilic association between these molecules and the receptor appear to contribute to biological activity.