Oral Health-Related Quality of Life, Locus of Control, Self-Reported Oral Health and Oral Health Status among Nursing Students in Moradabad.

Introduction: Oral health related quality of life (OHRQoL), locus of control, dental health as assessed by oneself and oral health situation have all been the subject of several research, but none of them have yet been investigated in combination. Materials and Methods: This cross-sectional study was carried out on 525 nursing students to investigate these ideas. The Oral Health Impact Profile-14 (OHIP-14) scale was employed to evaluate the standard of living associated with oral health. Results: Both chance participants and group internals reported having good OHRQoL. Nursing students in the internals group accurately assessed the deteriorated aspect of their self-reported oral health. However, it was found that participants from the chance locus and powerful others were unable to accurately rate the decayed component (P < 0.05). Conclusion: Internal nursing students had the highest OHRQoL, followed by random and influential students. Individuals from locus internals and random gave accurate ratings of their dental deterioration.

Temperature dependent mortality and behavioral changes in a freshwater mussel Lamellidens marginalis to dimethoate exposure.

Temperature is a crucial determinant of biogeography, directly affecting the behavioral responses of the organisms. An acute static bioassay was conducted to evaluate the effect of temperature on dimethoate toxicity in a freshwater mussel Lamellidens marginalis. The mussel, were exposed for 96 hr at different concentrations of dimethoate (155.00, 160.00, 165.00, 170.00, 175.00, 180.00, 185.00, 190.00, 195.00, and 200.00 mgl(-1)) in the month of January when water temperature was 14.9 +/- 1.2 degrees C and at concentration 35.00, 37.00, 39.00, 41.00, 43.00, 45.00, 47.00, and 49.00 mgl(-1) in the month of August when the water temperature was 28.0 +/- 0.5 degrees C. The LC50 values were calculated from the mortality data obtained (using EPA-Probit analysis version 1.5, statistical software). The 96 hr LC50 value recorded at higher temperature was 36.34 mgl(-1) and at low temperature was 163.59 mgl(-1). The mussel exposed at higher temperature showed more sensitive behavioral responses like huge mucus secretion, sudden closure of shell valves, quick post-mortem changes and increased oxygen consumption in comparison to exposure at low temperature. Therefore, the increasing threat of global warming increases the risk of pesticide toxicity in the exposed organisms.