PERFORMANCE ENHANCEMENT OF POWER SYSTEM BY STATCOM -INTEGRATED ARCHITECTURE

The paper aims to discuss the Performance Evaluation of STATCOM integrated with 118 – IEEE Test System and the Integrated Design Architecture for Efficient Management of Power System. Modern day Power System is constituted of Electrical components integrated with electronic devices and automated with Software. The components hardware and functionality is complex. To support the enhancement of the Life Cycle activities both the physical and the abstract components are modularized. The paper discusses the Key concepts of modularization, and the Life Cycle Stages. Taxonomy of Power Systems is presented. The paper presents the implementation of a modular FACTS device - STATCOM in 118Bus IEEE Test System and the results analyzed

Neuropsychological side effects of anti-epileptic drugs in epilepsy patients: a cross sectional study

Background: Epilepsy is the fourth most common neurological disorder in world. Managing an epilepsy with anti-epileptic drugs (AEDs) either as monotherapy or polytherapy is necessary to reduce the deleterious effect of the disease and to provide neuroprotection. AEDs exert their negative effects on cognition by suppressing neuronal excitability or enhancing inhibitory neurotransmission. These neuropsychological side effects are found to be modest when the drug level is within the therapeutic concentration and used as monotherapy. Objectives were to assess the prevalence of neuropsychological side effects among epilepsy patients who were on antiepileptic drug therapy. Methods: An open label, cross-sectional, clinical study was conducted at a tertiary care hospital, 126 participants were recruited. Participants demographic data, detailed medical and seizure history followed by neuropsychological tests was performed. The prevalence was assessed based on the number of participants scoring <15th percentile in one or more tests. Results: Out of 126 participants who were recruited, 82 participants were on monotherapy and 44 participants were on polytherapy. Levetiracetam was the most commonly prescribed drug as monotherapy, followed by phenytoin, carbamazepine and valproate; whereas in polytherapy levetiracetam, clobazam followed by phenytoin were the commonly prescribed AED. The most common adverse effect was drowsiness, followed by headache, hypersensitivity reaction, giddiness, tremors, anxiety etc. The prevalence of neuropsychological side effects was 77.8%. The prevalence of impairment between monotherapy and polytherapy was statistically insignificant (p=0.727). Conclusions: In this study, levetiracetam was the most commonly prescribed drug and the most common adverse effect was drowsiness due to AEDs. The subgroup analyses between monotherapy and polytherapy did not show any statistically significant neuropsychological impairment when compared based on the gender, age groups, duration of epilepsy with medication and duration of current therapy

Hypertension guidelines and coronary artery calcification among South Asians: Results from MASALA and MESA

Untreated hypertension may contribute to increased atherosclerotic cardiovascular disease (ASCVD) risk in South Asians (SA). We assessed HTN prevalence among untreated adults free of baseline ASCVD from the MASALA & MESA studies. The proportion of participants who received discordant recommendations regarding antihypertensive pharmacotherapy use by the 2017-ACC/AHA and JNC7 Guidelines across CAC score categories in each race/ethnic group was calculated. Compared with untreated MESA participants (n = 3896), untreated SA (n = 445) were younger (55±8 versus 59±10 years), had higher DBP (73±10 versus 70±10 mmHg), total cholesterol (199±34 versus 196±34 mg/dL), statin use (16% versus 9%) and CAC=0 prevalence (69% versus 58%), with fewer current smokers (3% versus 15%) and lower 10-year-ASCVD-risk (6.4% versus 9.9%) (all p\u3c0.001). A higher proportion of untreated MASALA and MESA participants were diagnosed with hypertension and recommended anti-hypertensive pharmacotherapy according to the ACC/AHA guideline compared to JNC7 (all p\u3c0.001). Overall, discordant BP treatment recommendations were observed in 9% SA, 11% Whites, 15% Blacks, 10% Hispanics, and 9% Chinese-American. In each race/ethnic group, the proportion of participants receiving discordant recommendation increased across CAC groups (all p\u3c0.05), however was highest among SA (40% of participants). Similar to other race/ethnicities, a higher proportion of SA are recommended anti-hypertensive pharmacotherapy by ACC/AHA as compared with JNC7 guidelines. The increase was higher among those with CAC\u3e100 and thus may be better at informing hypertension management in American South Asians

Design, synthesis and biological evaluation of indole and N-benzylated indole Mannich bases as potent antitubercular agents

210-224Though effective medicines have been available for treating drug-susceptible tuberculosis infections, the chances go from bleak to null as we move from multidrug resistant (MDR) to extremely drug resistant (XDR) or totally drug resistant (TDR) disease. Coordinated efforts made by international community have resulted in the identification of a few important anti TB agents like BM212, SQ109, AZD5847 and Sutezolid which are in the late phases of clinical trials. After Rifampicin, only two drugs Bedaquiline (2013) and Delaminid (2014) have been approved for the treatment of tuberculosis. This clearly shows the need for new leads towards fighting tuberculosis. In our present work, we have synthesized a series of indole and substituted indole Mannich bases designed by using structural features of BM212. Further, these synthesized derivatives have been analyzed by IR, NMR and mass spectral studies and are screened for anti-tubercular and antimicrobial activity. Among these, 23 compounds have shown potent anti TB activity with a MIC ≤3.12 μg/mL against M. tuberculosis H37Rv. We report here the synthesis, screening data and SAR studies of indole and substituted indole derivatives as antitubercular agents

Discordance between 10-year cardiovascular risk estimates using the ACC/AHA 2013 estimator and coronary artery calcium in individuals from 5 racial/ethnic groups: Comparing MASALA and MESA

Background and aims: South Asian (SA) individuals are thought to represent a group that is at high-risk for atherosclerotic cardiovascular disease (ASCVD). However, the performance of the Pooled Cohort Equations (PCE) remains uncertain in SAs living in the US. We aimed to study the interplay between predicted 10-year ASCVD risk and coronary artery calcium (CAC) in SAs compared to other racial/ethnic groups. Methods: We studied 536 SAs from the Mediators of Atherosclerosis in South Asians Living in America (MASALA) study, and 2073 Non-Hispanic Whites (NHWs), 1514 African Americans (AAs), 1254 Hispanics, and 671 Chinese Americans (CAs) from the Multi-Ethnic Study of Atherosclerosis (MESA) who were not currently on statins. We used logistic regression models to assess the association between race/ethnicity and CAC within each ASCVD risk stratum. Results: SAs at low and at intermediate estimated ASCVD risk were more likely to have CAC = 0 compared to NHWs, while SAs at high risk had a similar CAC burden to NHWs. For example, intermediate-risk SAs had a 73% higher odds of CAC = 0 compared to NHWs (95% 1.00-2.99), while high-risk SAs were equally likely to have CAC = 0 (OR 0.95, 95% CI 0.65-1.38) and CAC > 100 (OR 0.86, 95% CI 0.61-1.22). Conclusions: Our results suggest that the extent of ASCVD risk overestimation using the PCEs may be even greater among SAs considered at low and intermediate risk than among NHWs. Studies with incident ASCVD events are required to validate and/or recalibrate current ASCVD risk prediction tools in this group

System-level factors influencing refugee women's access and utilization of sexual and reproductive health services: A qualitative study of providers’ perspectives

Refugee women have poor outcomes and low utilization of sexual and reproductive health (SRH) services, which may be driven by access to and quality of SRH services at their resettled destinations. While healthcare providers offer valuable insights into these topics, little research has explored United States (U.S.) providers' experiences. To fill this literature gap, we investigate U.S. providers' perspectives of healthcare system-related factors influencing refugee women's access and utilization of SRH services. Between July and December 2019, we conducted in-depth, semi-structured interviews with 17 providers serving refugee women in metropolitan Atlanta in the state of Georgia (United States). We used convenience and snowball sampling for recruitment. We inquired about system-related resources, facilitators, and barriers influencing SRH services access and utilization. Two coders analyzed the data using a qualitative thematic approach. We found that transportation availability was crucial to refugee women's SRH services access. Providers noted a tension between refugee women's preferred usage of informal interpretation assistance (e.g., family and friends) and healthcare providers’ desire for more formal interpretation services. Providers reported a lack of funding and human resources to offer comprehensive SRH services as well as several challenges with using a referral system for women to get SRH care in other systems. Culturally and linguistically-concordant patient navigators were successful at helping refugee women navigate the healthcare system and addressing language barriers. We discussed implications for future research and practice to improve refugee women's SRH care access and utilization. In particular, our findings underscore multilevel constraints of clinics providing SRH care to refugee women and highlight the importance of transportation services and acceptable interpretation services. While understudied, the use of patient navigators holds potential for increasing refugee women's SRH care access and utilization. Patient navigation can both effectively address language-related challenges for refugee women and help them navigate the healthcare system for SRH. Future research should explore organizational and external factors that can facilitate or hinder the implementation of patient navigators for refugee women's SRH care

Elevated Expression of Squamous Cell Carcinoma Antigen (SCCA) Is Associated with Human Breast Carcinoma

Squamous cell carcinoma antigen (SCCA) belongs to the serine protease inhibitor (Serpin) family of proteins. Elevated expression of SCCA has been used as a biomarker for aggressive squamous cell carcinoma (SCC) in cancers of the cervix, lung, head and neck, and liver. However, SCCA expression in breast cancer has not been investigated. Immunohistochemical analysis of SCCA expression was performed on tissue microarrays containing breast tumor tissues (n = 1,360) and normal breast epithelium (n = 124). SCCA expression was scored on a tiered scale (0-3) independently by two evaluators blind to the patient's clinical status. SCCA expression was observed in Grade I (0.3%), Grade II (2.5%), and Grade III (9.4%) breast cancers (p<0.0001). Comparing tissues categorized into the three non-metastatic TNM stages, I-III, SCCA positivity was seen in 2.4% of Stage I cancers, 3.1% of Stage II cancers, and 8.6% of Stage III breast cancers (p = 0.0005). No positive staining was observed in normal/non-neoplastic breast tissue (0 out of 124). SCCA expression also correlated to estrogen receptor/progesterone receptor (ER/PR) double-negative tumors (p = 0.0009). Compared to SCCA-negative patients, SCCA-positive patients had both a worse overall survival and recurrence-free survival (p<0.0001 and p<0.0001, respectively). This study shows that SCCA is associated with both advanced stage and high grade human breast carcinoma, and suggests the necessity to further explore the role of SCCA in breast cancer development and treatment

The upcoming epidemic of heart failure in South Asia

Currently, South Asia accounts for a quarter of the world population, yet it already claims ≈60% of the global burden of heart disease. Besides the epidemics of type 2 diabetes mellitus and coronary heart disease already faced by South Asian countries, recent studies suggest that South Asians may also be at an increased risk of heart failure (HF), and that it presents at earlier ages than in most other racial/ethnic groups. Although a frequently underrecognized threat, an eventual HF epidemic in the densely populated South Asian nations could have dramatic health, social and economic consequences, and urgent interventions are needed to flatten the curve of HF in South Asia. In this review, we discuss recent studies portraying these trends, and describe the mechanisms that may explain an increased risk of premature HF in South Asians compared with other groups, with a special focus on highly relevant features in South Asian populations including premature coronary heart disease, early type 2 diabetes mellitus, ubiquitous abdominal obesity, exposure to the world’s highest levels of air pollution, highly prevalent pretransition forms of HF such as rheumatic heart disease, and underdevelopment of healthcare systems. Other rising lifestyle-related risk factors such as use of tobacco products, hypertension, and general obesity are also discussed. We evaluate the prognosis of HF in South Asian countries and the implications of an anticipated HF epidemic. Finally, we discuss proposed interventions aimed at curbing these adverse trends, management approaches that can improve the prognosis of prevalent HF in South Asian countries, and research gaps in this important field

Effect of storage on resistant starch content of processed ready-to-eat foods

In recent years, there has been an increased demand for processed convenient foods, particularly for the Armed Forces. Such foods should provide energy and other nutrients in the required proportions to promote health and nutrition of the army personnel. This study evaluated the effect of storage on the resistant starch (RS) content of selected ready-to-eat (RTE) foods, viz., vegetable kichidi, vegetable pulav, chicken pulav, mutton pulav, sooji halwa, upma, cauliflower peas curry and potato peas curry prepared by Defence Food Research Laboratory (DFRL). Resistant starch was quantified directly in the residues obtained after removing digested starch in simulated physiological conditions. Nutrient content and carbohydrate profile of the foods were also analysed. Nutrient content varied depending on the basic ingredients used in their preparation. Total starch ranged from 18–74 and dietary fibre 13–20, respectively. Storage of 4 months resulted in a significant increase (P<0.05) in the RS content of all foods except mutton pulav. It appeared that in addition to processing methods used, duration of storage could be an important factor, affecting RS formation in RTE foods