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Amit Singh

Bio: Amit Singh is an academic researcher from National Institute of Technology, Patna. The author has contributed to research in topics: Digital watermarking & Watermark. The author has an hindex of 57, co-authored 640 publications receiving 13795 citations. Previous affiliations of Amit Singh include Ithaca College & Center for Infectious Disease Research and Policy.


Papers
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Journal ArticleDOI
TL;DR: A prospective observational study on 55 patients who underwent laparotomy for adhesiolysis and to assess the post-operative complications related to adhesion, demonstrating the substantial clinical burden of adhesIOlysis, particularly when a bowel defect occurs.
Abstract: Background: One of the most common causes of morbidity caused during adhesiolysis is inadvertent enterotomy. It is important to have awareness about the adhesiolysis-related morbidity to properly inform the patients of the risks before surgery, for surgeons to take these risks into consideration while making operative decisions, and to get better at the diagnosis of post-operative complications. Patients and Methods: We did a prospective observational study on 55 patients who underwent laparotomy for adhesiolysis at the J.L.N. Medical College, Ajmer. Study period was 24 months, from January 2015 to January 2017, including a follow-up period of 6 months. Our primary aim was to do a detailed assessment and analysis of adhesiolysis and to assess the post-operative complications related to adhesiolysis. Results: The incidence of full thickness bowel defects was 9 (16.36%). Bowel resection and anastomosis were required in five operations (55.56%). The severity of adhesions and adhesiolysis time was more with patients with two or more previous laparotomies, mean 132 ± 40.27 min. Re-admission rates were also much higher in patients who had enterotomy. Conclusion: This study has demonstrated the substantial clinical burden of adhesiolysis, particularly when a bowel defect occurs.

1 citations

Journal ArticleDOI
TL;DR: Wang et al. as mentioned in this paper presented a pattern-classification-based TCC detection method using an artificial neural network that is trained with a large volume of spectrum traces of TCC signals.
Abstract: In response to growing security challenges facing many-core systems imposed by thermal covert channel (TCC) attacks, a number of threshold-based detection methods have been proposed. In this paper, we show that these threshold-based detection methods are inadequate to detect TCCs that harness advanced signaling and specific modulation techniques. Since the frequency representation of a TCC signal is found to have multiple side lobes, this important feature shall be explored to enhance the TCC detection capability. To this end, we present a pattern-classification-based TCC detection method using an artificial neural network that is trained with a large volume of spectrum traces of TCC signals. After proper training, this classifier is applied at runtime to infer TCCs, should they exist. The proposed detection method is able to achieve a detection accuracy of 99%, even in the presence of the stealthiest TCCs ever discovered. Because of its low runtime overhead ($< 0.187\%$<0.187%) and low energy overhead ($< 0.072\%$<0.072%), this proposed detection method can be indispensable in fighting against TCC attacks in many-core systems. With such a high accuracy in detecting TCCs, powerful countermeasures, like the ones based on dynamic voltage and frequency scaling (DVFS), can be rightfully applied to neutralize any malicious core participating in a TCC attack.

1 citations

Journal ArticleDOI
TL;DR: This study aimed at the isolation of Mycobacteria from clinical specimens of patients suspected of extra pulmonary tuberculosis using BACTEC MGIT, Lowenstein Jensen (LJ) media and direct acid-fast bacilli smear examination and found MGIT gives higher yield and faster results.
Abstract: Background: Tuberculosis is an important public health problem in India and globally. Extra pulmonary tuberculosis (EPTB) constitutes for approximately 15 to 20 per cent of all cases of tuberculosis in immunocompetent patients and accounts for more than 50 per cent of the cases in HIVpositive individuals. Main problem with the extra-pulmonary tuberculosis is the paucibacillary nature of the specimen, which makes the diagnosis difficult and delay the treatment. With this in background, this study aimed at the isolation of Mycobacteria from clinical specimens of patients suspected of extra pulmonary tuberculosis using BACTEC MGIT, Lowenstein Jensen (LJ) media and direct acid-fast bacilli smear examination. Methods: A total of 66 samples were processed for direct AFB smear examination, and culture on MGIT and LJ media. Acid fast staining of the specimens was done using the Ziehl-Neelsen method. Results: Among 66 specimens, MGIT gave a higher yield of mycobacteria (46.9%), lower contamination rate (3%) and shorter time to positive culture as compared to LJ media. Conclusions: MGIT gives higher yield and faster results.

1 citations

Journal Article
TL;DR: In this paper, an investigation was conducted to examine age/parity specific incidence of disposal and to assess the effect of various non-genetic factors on disposal of Sahiwal cattle maintained at the Institute.
Abstract: The present investigation was conducted to examine age/parity specific incidence of disposal and to assess the effect of various non-genetic factors on disposal of Sahiwal cattle maintained at the Institute. The analysis was carried out on data of 1,984 calving records of 519 Sahiwal cows born between 1985 and 2009, and 830 female calves born between 1986 and 2009. Traits considered in present study were abnormal calving, disposal of female calves up to age at first calving (AFC) and disposal of adult cows up to 4 lactations. The overall incidence of abnormal calving was 5.75% and was significantly affected by season and period of calving. Higher incidence of abnormal calvings were found during autumn and rainy seasons and it also revealed an increasing trend over the periods. Overall incidence of disposal of female calves up to AFC was 33.78%, comprising 9.11% due to culling and 24.67% due to mortality. Overall disposal of adult cows up to 4 lactations was 76.65%, comprising 11.85% due to mortality and 64.80% due to culling and was significantly affected by period of first calving. Major reasons of disposal were mortality during calfhood stage and culling during adult life. Maximum mortality was observed during first month of age. Therefore, intensive care of calves especially during first month of age against inclement weather conditions and improved breeding and management of cows to reduce involuntary culling would be expected to result in reduced likelihood of undesirable disposal of animals.

1 citations


Cited by
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28 Jul 2005
TL;DR: PfPMP1)与感染红细胞、树突状组胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作�ly.
Abstract: 抗原变异可使得多种致病微生物易于逃避宿主免疫应答。表达在感染红细胞表面的恶性疟原虫红细胞表面蛋白1(PfPMP1)与感染红细胞、内皮细胞、树突状细胞以及胎盘的单个或多个受体作用,在黏附及免疫逃避中起关键的作用。每个单倍体基因组var基因家族编码约60种成员,通过启动转录不同的var基因变异体为抗原变异提供了分子基础。

18,940 citations

Christopher M. Bishop1
01 Jan 2006
TL;DR: Probability distributions of linear models for regression and classification are given in this article, along with a discussion of combining models and combining models in the context of machine learning and classification.
Abstract: Probability Distributions.- Linear Models for Regression.- Linear Models for Classification.- Neural Networks.- Kernel Methods.- Sparse Kernel Machines.- Graphical Models.- Mixture Models and EM.- Approximate Inference.- Sampling Methods.- Continuous Latent Variables.- Sequential Data.- Combining Models.

10,141 citations

Journal ArticleDOI
TL;DR: The 11th edition of Harrison's Principles of Internal Medicine welcomes Anthony Fauci to its editorial staff, in addition to more than 85 new contributors.
Abstract: The 11th edition of Harrison's Principles of Internal Medicine welcomes Anthony Fauci to its editorial staff, in addition to more than 85 new contributors. While the organization of the book is similar to previous editions, major emphasis has been placed on disorders that affect multiple organ systems. Important advances in genetics, immunology, and oncology are emphasized. Many chapters of the book have been rewritten and describe major advances in internal medicine. Subjects that received only a paragraph or two of attention in previous editions are now covered in entire chapters. Among the chapters that have been extensively revised are the chapters on infections in the compromised host, on skin rashes in infections, on many of the viral infections, including cytomegalovirus and Epstein-Barr virus, on sexually transmitted diseases, on diabetes mellitus, on disorders of bone and mineral metabolism, and on lymphadenopathy and splenomegaly. The major revisions in these chapters and many

6,968 citations

Journal ArticleDOI
TL;DR: A comprehensive review of current research activities that center on the shape-controlled synthesis of metal nanocrystals, including a brief introduction to nucleation and growth within the context of metal Nanocrystal synthesis, followed by a discussion of the possible shapes that aMetal nanocrystal might take under different conditions.
Abstract: Nanocrystals are fundamental to modern science and technology. Mastery over the shape of a nanocrystal enables control of its properties and enhancement of its usefulness for a given application. Our aim is to present a comprehensive review of current research activities that center on the shape-controlled synthesis of metal nanocrystals. We begin with a brief introduction to nucleation and growth within the context of metal nanocrystal synthesis, followed by a discussion of the possible shapes that a metal nanocrystal might take under different conditions. We then focus on a variety of experimental parameters that have been explored to manipulate the nucleation and growth of metal nanocrystals in solution-phase syntheses in an effort to generate specific shapes. We then elaborate on these approaches by selecting examples in which there is already reasonable understanding for the observed shape control or at least the protocols have proven to be reproducible and controllable. Finally, we highlight a number of applications that have been enabled and/or enhanced by the shape-controlled synthesis of metal nanocrystals. We conclude this article with personal perspectives on the directions toward which future research in this field might take.

4,927 citations