Antipartum surveillance by scoring system for pregnancy outcome of cesarean section in a tertiary referral centre of Madhya Pradesh, India

Background: It is imperative to find out high risk pregnancy for providing apt care to the needy mother and fetus, so application of risk scoring system helps in pin pointing the at-risk patient and also gives a notion about the prognosis of fetal and maternal wellbeing. This study aims to evaluate the clinical application of risk scoring system in cesarean delivery for identification and management of risk pregnancies appropriately to improve perinatal and maternal morbidity and mortality.Methods: LNMC Bhopal M.P. a tertiary referral centre with approximately 2100 delivery / year and cesarean rate of 33%, serving primarily rural population. This prospective analytical study conducted from July 2017 till June 2018. Focused on the combination of the principal predictors of obstetric outcome taken from the previously published scoring system were applied on 120 cases of unplanned at risk caesarean section and summed up to identify risk-pregnancy and its predictive value for maternal and perinatal outcome.Results: It was determined by birth weight, APGAR score, birth asphyxia and NICU admission, Perinatal and maternal morbidity and mortality. Out of 120 caesarean cases 25% grouped in high risk, 58.3% low risk and 16.6%moderate group and their perinatal outcome was compared. 90% and 15% of the high risk and moderate group respectively had high risk neonates. In the high-risk group 2% had neonatal death, while no mortality in low risk cases. Maternal outcome was analysed by HDU admission 3% mothers were admitted in HDU with eclampsia and multi organ failure with one maternal mortality due to HELLP syndrome other recovered well, while one patient left against medical advice due to high expenses.Conclusions: Risk evaluation by simplified scoring system is an easy and economical way to identify high risk pregnancy to provide quick, comprehensive and quality health services to needy mother and neonate at right time, thus help in lowering the perinatal and maternal mortality and morbidity even at PHC level

Design and simulation of thin-film silicon quantum well photovoltaic cell

A new thin-film silicon photovoltaic cell could be designed by inserting quantum well layers in the intrinsic region. Calculations show the improvement in spectral absorption due to the quantum well layer insertion. This article reports the design parameters and enhanced spectral absorption for a newly designed thin-film silicon quantum well photovoltaic cell. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/1057

Coulomb blockade and quantum tunnelling in the low-conductivity phase of granular metals

We study the effects of Coulomb interaction and inter-grain quantum tunnelling in an array of metallic grains using the phase-functional approach for temperatures $T$ well below the charging energy $E_{c}$ of individual grains yet large compared to the level spacing in the grains. When the inter-grain tunnelling conductance $g\gg1$, the conductivity $\sigma$ in $d$ dimensions decreases logarithmically with temperature ($\sigma/\sigma_{0}\sim1-\frac{1}{2\pi gd}\ln(gE_{c}/T)$), while for $g\to0$, the conductivity shows simple activated behaviour ($\sigma \sim \exp(-E_c/T)$). We show, for bare tunnelling conductance $g \gtrsim 1$, that the parameter $\gamma \equiv g(1-2/(g\pi)\ln(gE_{c}/T))$ determines the competition between charging and tunnelling effects. At low enough temperatures in the regime $1\gtrsim \gamma \gg 1/\sqrt{\beta E_{c}}$, a charge is shared among a finite number $N=\sqrt{(E_{c}/T)/\ln(\pi/2\gamma z)}$ of grains, and we find a soft activation behaviour of the conductivity, $\sigma\sim z^{-1}\exp(-2\sqrt{(E_{c}/T)\ln(\pi/2\gamma z)})$, where $z$ is the effective coordination number of a grain.Comment: 11 pages REVTeX, 3 Figures. Appendix added, replaced with published versio