Search

This paper deals with the investigation of N identical compound parabolic concentrator evacuated tubular collector included single slope solar desalting unit (N‐CPC‐ETC‐SSU) by incorporating energy metrics for solving contemporary issue of water scarcity in the society. It will contribute to the sustainable development of society and recede the dependency on fossil fuels, too. The energy metrics investigation is important for energy system because it talks about the feasibility of the system. The methodology consists of getting fundamental equations from energy balance equations. All fundamental equations with relevant data are fed to the code developed in MATLAB followed by the computation of overall energy and exergy. All types of climatic situations have been considered for the analysis. Data required for the same are accessed from IMD, Pune, India. The energy payback period, energy production factor, and life cycle conversion efficiency for N‐CPC‐ETC‐SSU have been calculated at eight number of collectors, 0.012 mass flow rate and 0.14 m water depth. Results of N‐CPC‐ETC‐SSU have been compared with results of SSU included with ETCs. Concludingly, energy payback period is lower by 6.41%, energy production factor is higher by 6.25% and exergy‐based life cycle conversion efficiency is higher by 96.39% for N‐CPC‐ETC‐SSU than N‐ETC‐SSU. [ABSTRACT FROM AUTHOR]

On-demand work applications (ODWAs), a type of digital platforms (DPs), are technology-enabled intermediaries for gig workers. In this paper, we study these platforms and their impact on women belonging to the low socio-economic section in a developing economy. These women act as primary unpaid workers while being expected to make an economic contribution. Hence, they suffer from time scarcity where they need to find mechanisms to generate economic success from the limited time they have, in a largely informal economy. We employed the theoretical lens of affordances to delineate the affordances that are provided by the various features of ODWAs and their impact on life satisfaction of women. We conducted a mixed method study using interviews of 20 female gig workers, supplemented by a survey of 927 workers on one of the largest ODWAs in India. Our analysis points to the sense of identity and individuality that these platforms provide as well as lowering the market boundaries for greater inclusion. Our research is significant from both, the information systems and inclusion research perspectives, as it contributes to the theoretical understanding of the impact of DPs on breaking societal structures and providing avenues to marginalised sections. [ABSTRACT FROM AUTHOR]

The COVID-19 pandemic brought forth many restrictions and changes in the lifestyle of people across the globe. There was a need for social distancing and contactless exchanges, which accelerated the uptake of services such as digital payment platforms (DPP). In this study, we examine how the adoption of these DPPs was accelerated during the pandemic. Our focus is subsistence entrepreneurs (SEs) who suffer double jeopardy of resource scarcity as well as institutional voids that hinder their technology adoption. We use the exploratory approach to delve into this under-studied area in IS research using constructivist grounded theory. Using data from the in-depth interviews of these subsistence entrepreneurs, we develop a framework of a process that entails not only adoption and persistent use but also the mechanisms for the spread of this technology amongst a section of society that is characterized by poverty, illiteracy, and socio-economic barriers. [ABSTRACT FROM AUTHOR]

Objectives: This study was conducted to find out knowledge, attitude and practice (KAP) of epilepsy among 12 th -class students in Uttarakhand state. Secondly data of Uttarakhand was compared with KAP study from other parts of the country. Materials and Methods: All 12 th - class students studying in six schools of randomly selected 36 villages in Chakrata block of Dehradun district of Uttarakhand state were provided a printed questionnaire having answer as "yes or no". This questionnaire used was used previously by various authors and validated for KAP analysis. These filled questionnaires were collected by village health workers and medical officer. Results: This study conducted on 219, 12 th -class students revealed that epilepsy was heard by 98%, 74.9% thought epilepsy a mental disease and 4.8% believed that it is contagious. Negative attitude showed as nearly 2/3 rd students stated that epilepsy is hindrance in marriage and occupation. Nearly 41% would use onion or shoe for terminating seizure attack. Ayurvedic treatment was preferred over allopathic drugs. Conclusions: Study on 12 th -class students of Uttarakhand revealed poor knowledge, attitude and practice for epilepsy and needs special education program to dispel these misconceptions.

This work presents a sensitivity analysis of double slope solar still having N similar compound parabolic concentrator integrated evacuated tubular collectors in series connection (NCPCETC-DS) by incorporating heat transfer coefficient, exergy gain and exergy efficiency using one-at-a-time method. The sensitivity investigation for collector has also been done. All expressions of various parameters have been fed to computational code developed in MATLAB - 2015a for May month of New Delhi climatic situation. Heat transfer coefficients, exergy gain and exergy efficiency values have been estimated for different cases in which one input variable is varied keeping other input parameters as constant and the computation is continued till the completion of estimation for all input parameters. The exergy gain for collector, exergy gain for NCPCETC-DS and exergy efficiency for NCPCETC-DS have been estimated to be most sensitive with regard to concentration ratio having mean sensitivity figure values as 1.88, 1.97 and 1.94 in that order. [ABSTRACT FROM AUTHOR]

Individual clinical experience is combined with the best possible external clinical data from systematic research in the practice of evidencebased medicine. Data-based treatment is a complete approach to treating healthcare problems that allow the best available research evidence to be combined with clinical experience and patient choices. Evidence-based medicine's obligations to the medical industry and allied areas in terms of creating a platform for integrating research findings into healthcare delivery and raising awareness of the need to take individual patient preferences into account. In terms of culture and medical practice, South Asian countries are different. This region has little understanding of evidence-based medicine. Evidence-based medications have been adopted in some parts of South Asia, according to multiple survey data, while it is yet unknown in others. Treatments for mobile phones are fast expanding, and a preliminary study indicates that South Asian countries could benefit from this technology as well. People can benefit from digital healthcare initiatives in a variety of ways, including improved skill-training opportunities in real-world situations, continual assistance from medical practitioners, and better drug management. Evidence-based medications will become more accessible and successful as a result of the combination of Evidence-based medications with mobile technologies. It will also allow for a timelier deployment of Evidence-based medications [ABSTRACT FROM AUTHOR]

ABSTRACT Concerning the objectives of green chemistry, silica‐coated magnetite nanoparticles provide a new way to implement an efficient and effective system for assisting catalyst recovery across multiple organic reactions. With Fe3O4 spheres serving as the core shell, the synthesis of sulfonic acid‐functionalized silica‐coated magnetic nanoparticles is presented in this paper. FTIR, PXRD, SEM, TEM, EDX, TGA, XPS, and VSM techniques were used to assess the prepared catalyst. The proposed nanocatalyst was employed to produce biological relevance 2‐substituted benzimidazole and bis indole methane derivatives. High yield, quick reaction time, soothing reaction conditions, extended functional group tolerance, and an accessible workup approach are the main advantages of synthesized nanoparticles. Furthermore, the present nanocatalyst may be recovered using an external magnet and retaining its effectiveness for up to six cycles. These are distinctive functions of the present approach. [ABSTRACT FROM AUTHOR]

Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine. One of the three diazines (six-membered heterocyclics with two nitrogen atoms in the ring), it has the nitrogens at positions 1 and 3 in the ring. Pyrimidines are typically synthesized by the "Principal Synthesis" involving cyclization of beta-dicarbonyl compounds with N-C-N compounds. Reaction of the former with amidines to give 2- substituted pyrimidines, with urea to give 2-pyrimidiones, and guanidines to give 2-aminopyrimidines are typical. Pyrimidines can be prepared via the biginelli reaction. Many other methods rely on condensation of carbonyls with diamines for instance the synthesis of 2-Thio-6- methyluracil from thiouria and ethyl acetoacetate or the synthesis of 4-methylpyrimidine with 4, 4-dimethoxy-2-butanone and formamide. Pyrimidine derivatives show antimicrobial activity, anticancer activity, anti-inflammatory activity, antidiabetic, and analgesic activity. [ABSTRACT FROM AUTHOR]

Low temperature is the key to maintain the high quality for chilled food. The single jet air curtain is used for doorways opening insulation in the current circumstances is an idealization of the single jet air curtain used in the supermarket open refrigerated display cabinets. Open refrigerated display cabinets are going through some of the changes in their thermal behavior and of its overall performance due to variations in air conditions like air curtain temperature, velocity, height/width ratio, deflection module, specific cooling load, stability and thermal efficiency. A detailed experimental and comprehensive Artificial Neural Network Analysis of air conditions and energy transfer in an open refrigerated display cabinet is performed in this study. Numerical ANN predictions are 99.77% accurate and can be used to enable quick calculations and parametric analyses for the designing purposes of open refrigeration equipment that reduce the thermal infiltration of the Open Refrigerated Display Cabinet and increase the food safety. [ABSTRACT FROM AUTHOR]

Byline: Deepak. Goel, J. Dhanai, Alka. Agarwal, V. Mehlotra, V. Saxena Background : Community-based studies of epilepsy in India have reported variable prevalence rates, 5−10/1000 population. Reasons for this wide [...]

Byline: Deepak. Goel, Alka. Agarwal, J. Dhanai, V. Semval, V. Mehrotra, V. Saxena, B. Maithili Sir, Uttarakhand is the youngest state of India covering hills of Himalayas. We conducted community-based [...]

The interaction of four benzothiazole tethered triazole analogues (MS43, MS70, MS71, and MS78) with human serum albumin (HSA) was investigated using various spectroscopic techniques (ultraviolet–visible (UV–vis) light absorption, fluorescence, circular dichroism (CD), molecular docking and density functional theory (DFT) studies). Fluorescence quenching constants (~1012) revealed a static mode of quenching and binding constants (Kb ~104) indicating the strong affinity of these analogues for HSA. Further alteration in the secondary structure of HSA in the presence of these analogues was also confirmed by far UV–CD spectroscopy. The intensity loss in CD studied at 222 nm indicated an increase in random coil/β‐sheet conformations in the protein. Binding energy values (MS71 (−9.3 kcal mol−1), MS78 (−8.02 kcal mol−1), MS70 (−7.16 kcal mol−1) and MS43 (−6.81 kcal mol−1)) obtained from molecular docking revealed binding of these analogues with HSA. Molecular docking and DFT studies validated the experimental results, as these four analogues bind with HSA at site II through hydrogen bonding and hydrophobic interactions. [ABSTRACT FROM AUTHOR]

Background: Adequate nutrition is critical to child health and development. The current status of feeding practices in India as cited by National Family Health Survey-3 (2005-2006) is rather dismal. Objectives: To study the prevalence of IYCF practices and its socio-demographic determinants among children under two years of age in Vivekvihar and Nandnagri To compare IYCF practices between the two study areas Materials and Method: A cross-sectional study was done in children between 0 - 23 months of age in September, 2010 using pretested semi-structured interview schedule in two colonies with different socioeconomic settings. Convenience sampling was done to include a total of 725 children in the study. Results: Breastfeeding was initiated within 1 hour of birth for 38% of newborns, 18.75% received prelacteal feeds while 93% received colostrum. 57% of infants had received exclusive breast feeding for 6 months. Practice of pre-lacteal feed was seen to be significantly more in infants of Nandnagri as compared to Vivekvihar (p value 0.029). However, infants of Vivekvihar were more likely to be exclusively breastfed as compared to Nandnagri (p value <0.001) and also more likely to receive Colostrum (p value <0.001). Conclusion: Overall the prevalence of IYCF practices were falling short of national goals set for the year 2007. Socio-demographic factors like place of residence, place of delivery, mother's occupation do have a significant impact on IYCF practices. [ABSTRACT FROM AUTHOR]