ABSTRACT
Introduction: The rapid spread and mutation rate of severe acute respiratory syndrome corona virus (SARS-CoV2) demands continuous monitoring in terms of genomic and serosurvival. The current study is designed to track the seroprevalence of health care workers (HCWs) postvaccination, as they may be more susceptible to contracting the SARS-CoV-2 infection compared to the general population. Objective: The objective was to identify the seroprevalence rate for SARS-CoV-2 immunoglobulin G (IgG) antibody (N, S1, S2) amongst HCWs of various levels of exposure working in a tertiary care teaching hospital in Puducherry. Materials and Methods: The present study followed a nonprobability consecutive sampling technique, which involved 216 study participants HCWs from the hospital. IgG antibody levels were measured using EUROIMMUNE Anti SARS-COV-2 ELISA KIT (IG g) ELISA at two points: firstly, 2 weeks after the second dose of vaccination, followed by 2 weeks after the booster dose. Results: Out of the total 216 participants enrolled in the survey, there were 140 males and 76 females, and the maximum number of candidates studied were in the 41-50 age group. Almost 46.7% of the HCWs who participated in the study were seropositive for SARS-CoV-2 in the case of those who were high-risk exposed, while only 30.4% were amongst those who were low-risk exposed. The proportion of study participants who became seropositive increased considerably after the booster dose (65.7%), from 38.0% when tested three months after infection. Conclusion: A significant increase in antibody titres amongst high-risk HCWs postboost vaccination demands continuous monitoring of soluble IgG levels for recommendations of vaccination schedules.
ABSTRACT
The main focus of the work is to determine the performance efficiency of water-%CuO nanofluids and water at varied flow rate of 0.035 lit/sec, 0.045 lit/sec, and 0.065 lit/sec in an evacuated tube collector integrated with an heat exchanger. A heat exchanger made of copper tube connected to a horizontal pipe for collection of heat from a vertical tube, and a vertical copper tube for collection of heat from an evacuated tube collector for solar radiation were used in the investigation. Water showed no absorption, a low thermal capacity when it was not suitable for high thermal application for improvement in performance, the base fluid with colloidal dispersion of %vol CuO nanofluids in the force convection mode. The evacuated tube collector produced the highest efficiency of water -0.3% vol CuO nanofluids at flow rate 0.035 lit/sec compared to 0.1% and 0.2% vol of CuO nanofluids at flow rate of 0.045, 0.065 lit/sec and water. A comparison to the water CuO nanofluids with the highest effective concentration showed a greater increase in thermal efficiency.The performance of theworking fluid performances was examined for parameters like exit temperature, specific heat, thermal conductivity, energy productivity, and efficiency utilizing.
Subject(s)
Copper , Solar Energy , Sunlight , WaterABSTRACT
Introduction: Health-related quality of life (HRQOL) is a measure of an individual's psychosocial, emotional, and physical well-being. Around 1 in 20 children are less than 15 years of age and are living with a moderate-to-severe form of disability. Thus, our study aims to determine the HRQOL of intellectual disabled (ID) children attending a special school in Puducherry and to determine the socio-demographic factors influencing the level of HRQOL. Methodology: A cross-sectional analytical study was conducted among 350 ID children attending a selected special school in Puducherry over 1 year. By the universal sampling method, all the caregivers of ID children were recruited and the parent proxy form of Pediatric Quality of life Inventory scale version 4.0 (PedsQL ver 4.0) was used to assess the level of HRQOL of ID children. The data were analyzed using the Statistical Package for Social Science version 16.0 (SPSS ver. 16.0) and the statistical significance was set at P value <0.05. Results: Among the 350 respondents, a majority of the caregivers were mothers (78.9%) and 65.7% were homemakers by occupation. Most of the respondents were from the nuclear family (77.7%) and 55.1% were from urban areas. The mean age of ID children was 12 (±3.8) years; 61.2% were males and 40.8% of the children had a moderate form of ID. Conclusion: The HRQOL of ID children is found to be lower. The factors influencing the lower HRQOL were age, the intelligent quotient (IQ) of ID children, and type of marriage of the caregivers.
ABSTRACT
Solar energy will assist in lowering the price of fossil fuels. The current research is based on a study of a solar dryer with thermal storage that uses water and waste engine oil as the working medium at flow rates of 0.035, 0.045, and 0.065 l/s. A parabolic trough collector was used to collect heat, which was then stored in a thermal energy storage device. The system consisted of rectangular boxes containing stearic acid phase change materials with 0.3vol % Al2O3 nanofluids, which stored heat for the waste engine oil medium is 0.33 times that of the water medium at a rate of flow of 0.035 l/s which was also higher than the flow rates of 0.045 and 0.065 l/s. The parabolic trough reflected solar radiation to the receiver, and the heat was collected in the storage medium before being forced into circulation and transferred to the solar dryer. At a flow rate of 0.035 l/s, the energy output of the solar dryer's waste engine oil medium and water was determined to be roughly 12.4, 14, and 15.1, and 9.8, 10.5, and 11.5 times lower than the crops output of groundnut, ginger, and turmeric, respectively. The energy output in the storage tank and the drying of groundnut, ginger, and turmeric crops with water and waste engine oil medium at varied flow rates of 0.035, 0.045, and 0.065 l/s were studied. Finally, depending on the findings of the tests, this research could be useful in agriculture, notably in the drying of vegetables.
