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Background: This study has been carried out to determine the prevalence and pattern of Musculo Skeletal Disorders (MSD) among software professionals and to evaluate the association between socio-demographic factors, computer work related factors and MSD. Methods: The study design was cross sectional with software professionals working in information technology (IT) companies in Chennai, Tamilnadu as the study population. The sampling method used for the survey is the nonprobabilistic purposive sampling. Data was collected using a questionnaire which includes personal data, job details and standardized Nordic questionnaire. Results: Prevalence of work related MSD during last 12 months, during last 7 days and annual disability were 69%, 49.2% and 16.6% respectively. The common prevalence of work related MSD reported during last 12 months based on their body region were neck (29.56%), lower back (22.89%), shoulders (12.17%) and knees (9.56%). There was a statistically significant difference in terms of gender, regular exercise, more than 5 working days per week, more than eight hours of work per day and habit of taking lesser breaks during work hours at regular intervals. There were no statistically significant difference in terms of age, BMI and years of employment. Conclusions: The study has concluded that MSD is widely reported among software professionals working in the IT field in India. Hence, an appropriate prevention strategy needs to be carried out in order to enable them work comfortably.

The quest for affordable and efficient electrocatalyst for Oxygen Evolution Reaction and Oxygen Reduction Reaction is vital for Metal-Air Batteries. In this work, we present Mesoporous Lithium Cobalt Oxide on Nitrogen and Sulfur doped Graphene annealed at 400oC (designated as LT-LiCoO2/N,S-GO). The spinel structured LT-LiCoO2 shows better electrocatalytic activity than Co3O4 and layered LiCoO2 (HT-LiCoO2) for Oxygen Evolution Reaction due to the direct coupling on adjacent Co3+/ Co4+ ions across a large number of cubanes which facilitates the formation of O–O bonds with ease.[1] Even though LT-LiCoO2 exhibits higher OER activities, it shows poor ORR activity than that of Co3O4. Electrocatalysts having mixed-valent Co3+ /Co4+ were expected to show better ORR activities, so as to enhance the ORR activity of the LT-LiCoO2, graphene a two-dimensional material was incorporated, however the zero-band gap of graphene decreases its catalytic activity.[2] The introduction of hetero atoms modifies the electron density and also creates more active sites for ORR. Further, the electrocatalytic activity can be improved by increasing the surface area which can be achieved by a simple and facile post templating method.[3] Herein, In this work we present Mesoporous LT-LiCoO2/N,S-Graphene a hybrid bifunctional electrocatalyst.References:[1] Maiyalagan et al., Nature communications 5.1 (2014): 1-8.[2] Wu et al., Journal of the American Chemical Society 134.22 (2012): 9082-9085.[3] Bruce et al., Angewandte Chemie 117.40 (2005): 6708-6711.