187 research outputs found

    Albert algebras over curves of genus zero and one

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    Albert algebras and other Jordan algebras are constructed over curves of genus zero and one, using a generalization of the Tits process and the first Tits construction due to Achhammer.Comment: 37 page

    Quality Aware Generative Adversarial Networks

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    Generative Adversarial Networks (GANs) have become a very popular tool for implicitly learning high-dimensional probability distributions. Several improvements have been made to the original GAN formulation to address some of its shortcomings like mode collapse, convergence issues, entanglement, poor visual quality etc. While a significant effort has been directed towards improving the visual quality of images generated by GANs, it is rather surprising that objective image quality metrics have neither been employed as cost functions nor as regularizers in GAN objective functions. In this work, we show how a distance metric that is a variant of the Structural SIMilarity (SSIM) index (a popular full-reference image quality assessment algorithm), and a novel quality aware discriminator gradient penalty function that is inspired by the Natural Image Quality Evaluator (NIQE, a popular no-reference image quality assessment algorithm) can each be used as excellent regularizers for GAN objective functions. Specifically, we demonstrate state-of-the-art performance using the Wasserstein GAN gradient penalty (WGAN-GP) framework over CIFAR-10, STL10 and CelebA datasets.Comment: 10 pages, NeurIPS 201

    Study of intrapartum fetal distress with the help of cardiotocography and its correlation with umbilical cord blood sampling

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    Background: Even in low risk mothers, fetal acidosis occurs as in high risk groups. Aim of fetal monitoring is to detect early response to intrauterine hypoxia and prevent irreversible neurological damage and death. Objective of this study was to correlate the intrapartum fetal distress with the help of cardiotocography CTG with umbilical cord blood sampling.Methods: A total 100 consecutive patients attending the labor ward were studied. Immediately at birth, before the baby’s first breath and before delivery of the placenta, the umbilical cord blood was collected as per the standard guidelines laid down in the standard textbooks. Fetal acidosis was assessed by umbilical cord arterial blood pH. Fetal acidosis was considered when umbilical artery pH <7.2. Cardiotocography features were used to clinically diagnose fetal distress.Results: Most of the mothers were multigravida. They belonged to the age group of 20-25 years. Only 18% had abnormal CTG. Out of 50 mothers with normal vaginal delivery, all had normal CTG. Out of 43 mothers who were delivered by LSCS, no one had normal CTG, 25 had indeterminate CTG and 18 had abnormal CTG. As CTG became abnormal, proportion of mothers with the thick meconium increased. NICU admission proportion increased as CTG changed from normal to the abnormal. There was a significant association between the abnormal CTG and the umbilical cord blood pH being acidic.Conclusions: CTG is a simple test, easy to perform and can alert obstetrician for necessary interventions in case of an abnormal CTG. It can detect fetal distress in labor thus helping to reduce neonatal morbidity by early intervention in cases of abnormal tracing

    Assessing the Performance of Nano Lubricant on Zinc Aluminium Alloy

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    In the field of tribology, Zinc Aluminium (ZA) alloys have been widely investigated for their superior wear characteristics. They were found to be suitable alternatives for bearing bronzes for the operating conditions of high mechanical load and moderate sliding speeds. Addition of nano-particles in the lubricating oil (base oil) to enhance the characteristics of the base oil is known as nano lubrication. In this study, sliding wear behaviour of ZA27 was investigated under dry, base oil and nano oil lubrication conditions, by varying load, sliding distance and sliding speed. With the base oil as SAE 40, nano graphite was added in two step method which was further used to identify the lubrication regime under different lubrication conditions. From the limited study of single melt samples, the results appear that the wear behaviour of ZA27 alloy improved under nano lubrication conditions with reduction in operating temperature. It could be observed from SEM images that the presence of nano-particles reduced scarring and wear, leading to enhancement in the tribological performance of ZA27 alloy

    IMPACT OF NEUROCOGNITION ON TEACHING COMPETENCY

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    Teachers' can facilitate a life time of successful learning by equipping students with a repertoire of strategies and tools for learning. The teacher plays an important role in the educational process. Effective teaching depends upon the evolution of innovative strategies and also the methodology of teaching. As we gain a more scientifically based understanding about today's novel brain and how it learns, we must rethink about what we do in classroom and school. Neuro scientists are mapping the pathways between body and brain, providing tangible evidence of the benefits of hands-on, experimental learning. Neurocognitive process includes a number of human functions through neuronal networks. Brain cells communicating with each other through on electrochemical process. Neurocognition includes perceiving, recognizing, conceiving, judging and reasoning processes. The neurocognitive approach is based upon certain irrefutable facts concerning brain functions, which are applied to the intervention strategies of student teachers developmental difficulties. The teachers must develop the competencies like content competency, contextual competency, communication competency, classroom management and evaluation competency. In this paper, we discuss how the brain and its functions are helpful to the teachers in teaching and bringing out the dimensions of teaching competency such as induction, content, pedagogy, organisation and assessment. We elucidate the Neurocognitive strategies are how helpful to bring out the secrets of amygdala and hippocampus involving in teaching strategies. We also emphasize that the recent development of designing Neurocognitive programme that focus on both cognitive and social development has theoretical and practical challenges

    LEAVES OF ANDROGRAPHIS PANICULATA IS AN ANTIOXIDANT AND ANTICANCER AGENT

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    Objective: Andrographis paniculata (Family: Acanthaceae) is a well-known medicinal plant used in the Indian traditional system of medicine for the treatment of many chronic diseases. The present study was aimed to quantify secondary metabolites, determine antioxidant, and anticancer activity of ethanol extract of A. paniculata leaves. Methods: Leaf sample was macerated with ethanol solvent. Alkaloids, terpenoids, saponins, phenols, and flavonoids were quantified with standard calibrations. The antioxidant potential was tested using 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid (ABTS), and ferric reducing antioxidant power (FRAP) assays. In vitro anticancer activity was evaluated using human epithelial type 2 (HEp-2) cell line. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay was used to estimate the cytotoxicity of the extracts. Apoptotic and necrotic effects were characterized by DNA fragmentation assay and fluorescence microscopy using the dual acridine orange/ethidium bromide (AO/EB) staining method. Results: The phytochemical analysis reveals the presence of alkaloids, saponins, phenols, flavonoids, terpenoids, and steroids. Alkaloids, terpenoids, saponins, phenol, and flavonoid content were recorded as follows: 9.84%, 8.42%, 13.94%, 44.37 mg gallic acid equivalent/100 g, and 904 mg quercetin equivalent/100 g, respectively. The antioxidant activity from DPPH, ABTS, and FRAP assays showed dose-dependent inhibition of free radicals. In cell viability tests, cell death with increasing extract concentration was observed. DNA fragmentation and AO/EB stain confirmed apoptosis and necrosis in extract-treated cells. Conclusion: The results indicate that A. paniculata is a promising source for the development of antioxidant and anticancer drugs

    EFFECT OF FLAVONE AND ITS MONOHYDROXY DERIVATIVES ON ANIMAL MODELS OF DEPRESSION IN SWISS ALBINO MICE

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    Objectives: This research was designed to investigate the antidepressant activity of a few structurally related flavones (flavone, 3‑hydroxyflavone, and 7‑hydroxyflavone) and the possible mechanisms involved. Methods: Antidepressant activity was evaluated in mice by subjecting them to forced swim test and tail suspension test. The involvement of adrenergic, serotonergic, nitric oxide (NO), and opioid mechanisms was investigated using suitable interacting chemicals. Results: Flavone, 3‑hydroxyflavone, and 7‑hydroxyflavone exhibited a significant and dose‑dependent reduction in total time of immobility in the forced swim test and tail suspension test. Pre‑treatment with alpha‑methyl‑para‑tyrosine and parachlorophenyl alanine attenuated the reduction in immobility period produced by flavone and its derivatives in forced swim test. Naloxone pre‑treatment partially reversed the effect of flavone while L‑arginine pre‑treatment did not alter their effect. Conclusion: The investigated flavones exhibited promising antidepressant activity in both the animal models of depression. However, the flavone compounds did not alter the motor coordination and ambulatory behavior in the Rotarod and locomotor activity test. The participation of serotonergic, adrenergic, and opioid mechanism in the antidepressant activity of these compounds was elucidated from the results, and the role of NO pathway was excluded

    Neutrosophic Nano ideal topological structure

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    METABOLIC EFFECTS OF THREE DIFFERENT BARIATRIC PROCEDURES-A RETROSPECTIVE STUDY

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    Objective: In this study it is proposed to compare the effect of three different bariatric metabolic procedures such as Laparoscopic Roux-en-Y gastric bypass (RYGB) Laparoscopic Mini gastric bypass (MGB) and Laparoscopic sleeve gastrectomy (SG) on diabetes remission and reduction in co-morbidities.Methods: A retrospective analysis of prospectively collected data base of three bariatric metabolic surgery groups were screened from the year 2010-2014 at the study centre for patients satisfying the inclusion criteria. Three follow up data at an interval of three months and a base line value for all the three groups were collected. Outcome measure the percentage of patients achieved diabetes remission according to American Diabetes Association Criteria (ADA)/International Diabetic Federation (IDF) criteria i.e. Glycosylated haemoglobin (HbA1c)&lt;6 % or&lt;6.5 % without active pharmacological therapy at least I year post surgically and percentage patients lost&gt;60% excess body weight. Secondary outcome includes the percentage reduction in cardiovascular risk factors, changes in medication associated with diabetes and cardiovascular diseases and immediate and later complications of the three different procedures of surgery. All calculations were performed using SPSS Version 18 statistical software. Descriptive statistics included are calculation of mean and standard deviation. Chi–square test and two factor ANOVA for comparison of means between groups under study.Results: All the three surgical groups were comparable in reducing the excess body weight, HbA1c and cardiovascular complications. Highest response to weight reduction at 9 to 12 mo was reported from MGB group which was statistically significant between groups. Percentage of patients achieved diabetes remission according to ADA/IDF criteria was not statistically significant between groups but within group it was highly significant. Hypercholestremia reduction between MGB and GB was highly significant P value is **0.002. The lowest percentage of complications after surgery was reported by MGB group followed by SG.Conclusion: MGB relatively a new surgical procedure seems to be a better option for treating, obesity, uncontrolled diabetes and related co-morbidities

    EFFECT OF METABOLIC SURGERY ON TYPE 2 DIABETES REMISSION: A MATCHED GROUP ANALYSIS

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    Objectives: In this study it is proposed to analyse the effect of bariatric metabolic surgery on diabetes remission in obese type 2 diabetic patients compared to conventionally treated similar patients.Methods: A retrospective review, of prospectively collected data base of conventionally treated group and metabolic group were screened from the year 2010-2013 at the study centre for patients satisfying the inclusion criteria. Three follow up data at an interval of three months and a base line value for both group were collected. Primary outcome measures the percentage of patient achieved diabetes remission, i.e. glycosylated haemoglobin (HbA1c)&lt;6 % without active pharmacological therapy at one year and percentage of patients who achieved excess weight loss more than 60 % at one year.Secondary outcome includes percentage reduction in medication use. Statistics used in the study is student‘t' test, Chi-square and ANOA (Analysis of Variance). The treatment effects were found to be significant to the least significant difference (LSD) at 5% level of significance.Results: The patients underwent bariatric surgery had a significant improvement in glycemic status (HbA1c&lt;6 %). In conventionally treated group less than 5% achieved HbA1c less than 6.5 % level with active pharmacological therapy. There was an increased use of antidiabetic medication with 2-5% increase in mean body weight in conventional group.Conclusion: Compared to conventional therapy bariatric surgery markedly improves diabetes and results in discontinuation or marked reduction of anti-diabetic medications in majority of patients treated. So bariatric surgery seems to be a better option for the obese diabetic patients.Â
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