A naive bayes approach for converging learning objects with open educational resources     

A. Sai Sabitha  Deepti Mehrotra  Abhay Bansal  B. K. Sharma 《Education and Information Technologies》2016,21(6):1753-1767

Open educational resources (OER) are digitised material freely available to the students and self learners. Many institutions had initiated in incorporating these OERs in their higher educational system, to improve the quality of teaching and learning. These resources promotes individualised study, collaborative learning. If they are coupled with Learning Objects of Learning Management System (LMS), they can lead to opportunities for further pedagogical innovation. It has become increasingly important for educational institutions to support these resources, in a planned and systematic manner. Adapt, assemble and conceptualise existing OERs to respond to diverse learning needs of students and support a variety of learning approaches for a given learning goal is a challenge. In this work, convergence of OERs with Learning Objects is done through metadata using classification techniques. Localisation of these high quality learning materials with the learning content of LMS, delivered as a single instructional unit may help in greater knowledge delivery and this can satisfy the learning needs of diverse student.  相似文献   

Alfred Wegener—From continental drift to plate tectonics     

A F Saigeetha  Ravinder Kumar Banyal 《Resonance》2005,10(6):43-59

What is the nature of the force or mechanism that moves massive continents thousands of miles across? What causes violent earthquakes to displace huge landmasses abruptly? How could great mountain ranges like Himalayas and Alps rise to such incredible heights? What makes earth's interior so restless? Answers to some of these questions may lie in understanding the Earth's interior itself.  相似文献   

Effect of computer interfaces on chemistry problem solving among various ethnic groups: A comparison of Pen-Point and Powerbook computers     

David D. Kumar  Stanley L. Helgeson 《Journal of Science Education and Technology》1996,5(2):121-130

This study investigated the effect of Pen-Point and Powerbook computers on solving a multiple step chemistry (molaritý) problem among White, Afro-American and Hispanic students (N=60) at the high school level. The screens on both computers were partitioned into a work field and a reasoning field. Both computers were programmed to record the time spent in each field, the number of entries made, and a copy of the entries made. Statistical analysis of data showed that more of the White and Afro-American Pen-Point computer users solved the problem correctly than did students using the Powerbook computer. All three ethnic groups made fewer entries, and took less time using the Pen-Point computer than the Powerbook. Attitude survey results of all ethnic groups showed that more Pen-Point computer users felt comfortable working with computers. Over all, the results suggest that the Pen-Point computer has a more positive effect on the problem solving performance and attitude of students towards computers than the Powerbook computer.  相似文献   

Computer Technology,Science Education,and Students with Learning Disabilities     

Kumar  David  Wilson  Cynthia L. 《Journal of Science Education and Technology》1997,6(2):155-160

The ways computer technology could be used to teach science to students with learning disabilities (LD) are explored. Science is for all students and that includes students with LD. Learning science has both cognitive and affective implications for students with LD. In this context, computer technology provides cognitively engaging and motivating instructional tools for individualizing the mode of delivery; developing expert tutors; anchoring instruction; integrating science with other subjects; reducing cognitive load on working memory; and motivating students to stay on task. These applications are discussed with implications for teaching science to students with LD.  相似文献   

Complementary Approaches to Evaluation of Technology in Science Education     

David D. Kumar  James W. Altschuld 《Journal of Science Education and Technology》2002,11(2):179-191

An interesting and relevant case involving two distinct systematic evaluations, traditional as well as somewhat nontraditional, of a science teacher education project with a heavy technology emphasis is discussed. Comparisons of the two separate evaluations of the same project revealed the complexity of evaluating technology projects and the multifaceted ways in which the evaluation endeavor could be approached, and provided an unusual situation and seldom seen opportunity for thinking about such evaluations. Additionally, what some other authors have said about the evaluations of efforts that take advantage of technology in the training of science teachers will also be explored. Evaluators must become active players in guiding the infusion of technology in preservice science programs. If evaluators, don't function to identify what works and what doesn't and what induces the best supportive environment, then who will?  相似文献   

Giant magnetoresistance     

Debakanta Samal  P. S. Anil Kumar 《Resonance》2008,13(4):343-354

The 2007 Nobel Prize in Physics was awarded to Albert Fert and Peter Grünberg for the discovery of giant magnetoresistance (GMR). GMR is achieved in metallic multilayers, where the resistance of the multilayer changes considerably by the application of a magnetic field. This has paved the way for high density data storage in magnetic media. (left) Debakanata Samal is a research scholar at the Deaprtment of Physics at IISc, Bangalore. His research interests are in magnetotransport in oxide multilayers, spintronics. (right) P S Anil Kumar is an Asst. Professor at the Department of Physics, IISc Bangalore. His research interests are in spintronics, magnetic nano-structures, surface-and thin-film magnetism, magnetotransport in metallic multilayers and oxides, and spin-polarized electron scattering.  相似文献   

Stakeholder perspectives on barriers and facilitators of inclusive education in the Solomon Islands          下载免费PDF全文

Umesh Sharma  Tim Loreman  Janine Simi 《Journal of Research in Special Educational Needs》2017,17(2):143-151

This paper reports perceived barriers and facilitators of disability‐inclusive education, and outcomes of an effective system of inclusive education in the Solomon Islands. Data were gathered from a variety of stakeholder group participants (n = 10) and individual key informants (n = 2), ranging from parents of children with disabilities to government representatives. The results revealed a unique perspective on disability‐inclusive education in this context, and provided insight into possible directions towards a more inclusive system.  相似文献   

Vitamin E status in protein energy malnutrition     

Pankaj Abrol  Neeraj Sharma  Harbans Lal 《Indian journal of clinical biochemistry : IJCB》1997,12(2):125-127

Serum vitamin E and cholesterol concentrations were measured in 50 children with protein energy malnutrition (PEM) and results were compared with a group of 50 normal controls. Mean serum vitamin E concentration as well as vitamin E/cholesterol ratio were found to be reduced in children with PEM while their mean serum cholesterol level was not significantly different from the control group. Data suggest that the reduced levels of serum vitamin E in PEM may be a result of malnutrition per se.  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   

Lotka's law and institutional productivity   总被引：1，自引：0，他引：1  

Suresh Kumar  Praveen Sharma  K. C. Garg 《Information processing & management》1998,34(6):775-783

The present study aims at determining the applicability of Lotka's law, negative binomial distribution and lognormal distribution for institutional productivity, in the same way as it is to authors and their productivity in the field of engineering sciences and the patents filed by industrial firms in laser S&T. The study indicates that non of the three distributions are applicable for institutional productivity in engineering sciences. However, Lotka's law holds good for full as well as truncated set of data for the patents filed by industrial firms.  相似文献