Lipid peroxidation and glutathione peroxidase in ischemic heart disease     

K. S. Motghare  Anil Bhutey  B. B. Murrhar  Madhur Gupta  A. W. Meshram  Y. Balsubramanium 《Indian journal of clinical biochemistry : IJCB》2001,16(2):213-215

With the growing interest in the concept of free radicals in the pathogenesis of myocardial ischemia, it was thought worthwhile to study the changes in lipid peroxides and antioxidant enzyme glutathione peroxidase (GPx) in ischemic heart disease (IHD). The study was carried out on 76 patients of IHD-38 of acute myocardial infarction (AMI) and 38 of stable ischemic heart disease (SIDH). They were age and sex matched with 38 normal healthy controls. A significant increase (p<0.001) in lipid peroxides as malondialdehyde (MDA) (5.9±0.7 mmol/L) and a decrease in GPx (24.6±2.2 U/gmHb) was found in patients of AMI when compared with controls. There was no significant difference in these values in SIHD. Thus this study confirms the earlier findings that MDA and GPx are useful parameters in IHD and their magnitude is dependent on severity and/or duration of ischemia. We suggest that these tests would be of use in smaller institutions with limited facilities.  相似文献   

Survey of recent Indian writings on distance education     

Arun K. Gupta 《Distance Education》1986,7(2):281-288

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A science need: Designing tasks to engage students in modeling complex data     

Richard Lesh  James A. Middleton  Elizabeth Caylor  Shweta Gupta 《Educational Studies in Mathematics》2008,68(2):113-130

In this information age, the capacity to perceive structure in data, model that structure, and make decisions regarding its implications is rapidly becoming the most important of the quantitative literacy skills. We build on Kaput’s belief in a Science of Need to motivate and direct the development of tasks and tools for engaging students in reasoning about data. A Science of Need embodies the utility value of mathematics, and engages students in seeing the importance of mathematics in both their current and their future lives. An extended example of the design of tasks that require students to generate, test, and revise models of complex data is used to illustrate the ways in which attention to the contributions of students can aid in the development of both useful and theoretically coherent models of mathematical understanding by researchers. Tools such as Fathom are shown as democratizing agents in making data modeling more expressive and intimate, aiding in the development of deeper and more applicable mathematical understanding.

James A. MiddletonEmail:

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Distance education in Ethiopia     

Sushma Gupta 《Distance Education》1991,12(2):279-285

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Electricity     

D. P. Sen Gupta 《Resonance》1997,2(10):46-53

In the early years of power generation the alternating voltage from a single coil (with 2 or more parallel paths) wascommutated to convert it to DC. Commutation essentially means reversing the negative polarity of the AC voltage so that the voltage produced does not alternately change, its sign and the current delivered by the generator flows in one direction. The purpose of producing direct current was that it could be used to run motors available in those days and light electric bulbs. AC motors which constitute more than 80% of today’s motors had not been invented at that time.  相似文献   

Accessing the elite figured world of science     

Rachel Chaffee  Preeti Gupta 《Cultural Studies of Science Education》2018,13(3):797-805

This review explores Jackson and Seiler’s “I am smart enough to study postsecondary science: A critical discourse analysis of latecomers’ identity construction in an online forum” by considering the analytic framework for figured worlds guiding this study. We consider the specific affordances of cultural production theory for examining how sociohistorical and cultural discourses of science as elite impact individuals at every level of education. We then extend this discussion by exploring how an informal learning space at a prestigious science museum was designed to explicitly tackle cultural discourses of science as elite that act as barriers to identification with science.  相似文献   

A Survey of Educational Psychologists’ Views on the Delivery of Behaviour Modification     

P. Coxhead  R. M. Gupta 《Educational studies》1989,15(1):15-22

The survey reported here was principally aimed at exploring the views of practising educational psychologists in the United Kingdom as to their implementation of behaviour modification. Approximately 10‐15 questionnaires were sent to each of 22 Psychological Services randomly selected from the Directory of School Psychological Services and Child Guidance Services. Seventy‐eight questionnaires (nearly 31% of those sent out) were received in time for their contents to be analysed. Two findings of the present survey are that an overwhelming majority of practising educational psychologists do not recommend behaviour modification in its traditional form, and that few educational psychologists believe that traditional behaviour modification can or should be implemented without any adaptation. An interesting, and somewhat unexpected finding, is that a vast majority of the respondents hold somewhat ‘and’ attitudes towards the traditional form of behaviour modification, although more experienced educational psychologists are somewhat less antagonistic.  相似文献   

Effect of herbal drug on serum lipid profile in albino rabbits     

S. B. Sharma  M. Gupta  M. C. Pant 《Indian journal of clinical biochemistry : IJCB》1995,10(2):116-118

Abana, a herbal preparation of Himalaya Drug Co. significantly increases HDL—cholesterol and lowers LDL—cholesterol. Moreover, it antagonises the HDL lowering effect of metoprolol.  相似文献   

Unmasking text plagiarism using syntactic-semantic based natural language processing techniques: Comparisons,analysis and challenges     

Vani K.  Deepa Gupta 《Information processing & management》2018,54(3):408-432

The proposed work aims to explore and compare the potency of syntactic-semantic based linguistic structures in plagiarism detection using natural language processing techniques. The current work explores linguistic features, viz., part of speech tags, chunks and semantic roles in detecting plagiarized fragments and utilizes a combined syntactic-semantic similarity metric, which extracts the semantic concepts from WordNet lexical database. The linguistic information is utilized for effective pre-processing and for availing semantically relevant comparisons. Another major contribution is the analysis of the proposed approach on plagiarism cases of various complexity levels. The impact of plagiarism types and complexity levels, upon the features extracted is analyzed and discussed. Further, unlike the existing systems, which were evaluated on some limited data sets, the proposed approach is evaluated on a larger scale using the plagiarism corpus provided by PAN¹ competition from 2009 to 2014. The approach presented considerable improvement in comparison with the top-ranked systems of the respective years. The evaluation and analysis with various cases of plagiarism also reflected the supremacy of deeper linguistic features for identifying manually plagiarized data.  相似文献   

Innovations in science education: infusing social emotional principles into early STEM learning     

Pamela W. Garner  Nuria Gabitova  Anuradha Gupta  Thomas Wood 《Cultural Studies of Science Education》2018,13(4):889-903

We report on the development of an after-school and summer-based science, technology, engineering, and mathematics curriculum infused with the arts and social emotional learning content (STEAM SEL). Its design was motivated by theory and research that suggest that STEM education is well-suited for teaching empathy and other emotion-related skills. In this paper, we describe the activities associated with the development and design of the program and the curriculum. We provide expert-ratings of the STEAM and social emotional elements of the program and present instructor and participant feedback about the program’s content and its delivery. Our results revealed that infusing the arts and social emotional learning content into science education created a holistic STEM-related curriculum that holds potential for enhancing young children’s interest in and appreciation for science and its applications. The data also suggested that the program was well-developed and, generally well-executed. However, experts rated the STEAM elements of the program more positively than the SEL elements, especially with regard to sequencing of lessons and integration among the lessons and hands-on activities, indicating that program revisions are warranted.  相似文献