Assessment of expert-novice chemistry problem solving using HyperCard: Early findings     

David D. Kumar 《Journal of Science Education and Technology》1993,2(3):481-485

Results of a HyperCard method for assessing the performance of expert and novice high school chemistry students solving stoichiometric chemistry problems (balancing chemical equations) have been reported. The assessment involved the use of a HyperCard instrument (Hyperequation) developed on a Macintosh platform to administer a set of five chemistry problems, register student responses, and collect data related to student performance. The chemistry problems have been previously tested and validated in traditional (pen-paper) assessment settings by other researchers. MANOVA results indicate a significant difference between the performance of expert and novice students solving the five stoichiometric chemistry problems using the Hyperequation. The study shows promise in that a HyperCard assessment method could differentiate between the performance of experts and novices in problem solving. The implication is that HyperCard might be a suitable technology for developing performance assessment methods not only in chemistry but also in other science disciplines.  相似文献   

Quality assurance strategies for affiliated institutions of HE: a case study of the affiliates under National University of Bangladesh   总被引：1，自引：0，他引：1  

Gazi Mahabubul Alam  Pradip Kumar Mishra  Mirja Mohammad Shahjamal 《Higher Education》2014,68(2):285-301

Presently, education is considered as the main weapon for national development. However, this tenet has been challenged by several economists. Their findings give rise to a further question: whilst expansion of education increases globally, what is it exactly that continues to hinder a country’s progression? There is no short answer, but one major area of concern is the quality and relevance of the education available. Research for this paper, the first of its kind in Bangladesh, has been carried out by interviews and observation in the affiliates of the National University of Bangladesh, where 80 % of the students in higher education are the underprivileged. The findings show that the legislators ignore the fact that quality of education in the affiliates is perceived as important.  相似文献   

Significance of interactive sessions in teaching anatomy     

Sanjib Kumar Ghosh M.D. 《Anatomical sciences education》2013,6(6):440-441

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Usage of E-journals by researchers in Aligarh Muslim University     

M. Masoom Raza  Ashok Kumar Upadhyay 《International Information and Library Review》2013,45(3):170-179

Abstract

This article presents a study that seeks to examine the usage of e-journals by the researchers at Aligarh Muslim University. The survey reveals that all the researchers are aware of e-journals in AMU. From this survey, the investigator has been able to find out that many research scholars are consulting e-journals from their departmental labs and computer centers, not only for research purposes but also to update their own knowledge. However, the study also revealed several problems, including lack of training and slow downloading. The researchers’ feelings about the need for print journals as well as electronic journals are also discussed.  相似文献   

Decay and half-life period of online citations cited in open access journals     

B.T. Sampath Kumar  K.S. Manoj Kumar 《International Information and Library Review》2013,45(4):202-211

This study investigates the decay and half-life of online citations cited in four open access journals published between 2000 and 2009. A total of 1158 online citations cited in 1086 research articles published in two science and social science journals spanning a period of 10 years (2000–2009) were extracted. Study found that 24.58% (267 out of 1086) of articles had online citations and these articles contained a substantially very less number of online citations (2.98%) compared to previous study results. 30.56% (26% in Science and 52.73% in Social Science) of online citations were not accessible and remaining 69.44% of online citations were still accessible. The ‘HTTP 404 error message-page not found’ was the overwhelming message encountered and represented 67.79% of all HTTP message. Domains associated with .ac and .net had higher successful access rates while .org and .com/.co had lowest successful access rates. The half-life of online citations was computed to be approximately 11.5 years and 9.07 years in Science and Social science journal articles respectively.  相似文献   

A Quantitative Analysis of Research Output of Jawaharlal Nehru University,New Delhi,India     

Manorama Tripathi  Sunil Kumar 《International Information and Library Review》2013,45(1-2):39-51

This study provides an overview of the research output of Jawaharlal Nehru University, New Delhi, India, in terms of number of publications contributed by faculty members and researchers. The study analyzes bibliometric indicators of published research of Jawaharlal Nehru University as indexed in the Web of Science. There were 5,007 research publications from Jawaharlal Nehru University in the four decades from 1971–2010 (70s; 80s; 90s; and 2000s). The study noted encouraging trends in collaborative research work with multiple-authored research papers. International collaboration in research was also observed among the faculty members and researchers. English was the predominant language of communication. The social scientists and humanists of Jawaharlal Nehru University publish books which are not indexed in the Web of Science. Similarly, research work published in regional languages or published in national level journals are seldom included in the Web of Science. It suggests that research needs to be done by collecting data from the Indian Citation Index and books published by the researchers in order to get an accurate and consolidated picture of the research output of the university.  相似文献   

Transparency,accountability and good governance: Role of new information and communication technologies and the mass media     

Shahid Akhtar  Mahesh Kumar Malla  John Gregson 《媒体管理杂志》2013,15(3-4):124-132

Abstract

Customer orientation has been suggested to create competitive advantage of firms (Kohli &; Jaworski, 1990 Kohli, A. K. and Jaworski, B. J. 1990. Market orientation: The construct, research propositions, and managerial implications. Journal of Marketing, 54(2): 1–18. [Crossref], [Web of Science ®] , [Google Scholar]). Therefore, the recommendation to media managers has been to let the creation and delivery of customer value guide their strategies for advertising sales (Aris &; Bughin, 2005 Aris, A. and Bughin, J. 2005. Managing media companies: Harnessing creative value, Chichester, , England: Wiley.  [Google Scholar]). However, the concept of customer value, what it is, and how it is created remains unclear in many ways. This article explores the concept of customer value in advertising media purchasing from the media seller's perspective. Between December 2007 and February 2008, sales representatives from three Swedish TV networks were studied through in-depth interviews and observations as they progressed through a negotiation process with a large advertiser and its media agency. A qualitative analysis of the media sellers' experiences shows that they see advertiser and agency to perceiving the value of advertising media differently. Also, they see the customer side parties as diverging in the processes by which these value perceptions are formed. The article reveals the inherent problem of customer orientation on advertising markets—that within media purchasing practice, several actors have their own idea of value, and an advertiser's understanding of value is not always a decisive factor. The TV networks in the study have all chosen different strategies to deal with these dualities.  相似文献   

Circadian rhythms     

Koustubh M. Vaze  Vijay Kumar Sharma 《Resonance》2013,18(7):662-672

Living organisms ranging from bacteria to human beings exhibit 24-h rhythms in various behaviours and physiological processes. Matching of the period of such rhythms with that of the daily environmental cycles gives an impression that they are mere passive responses to environmental changes. Here, we discuss the change in our perception about daily biological rhythms, from their identity as rhythmic phenomena occurring as passive response to environmental changes, to the biological clocks. This is the first article in a series of articles on circadian rhythms which will cover discussion on the genetic and molecular basis, circadian organization and its adaptive significance.  相似文献   

A serpentine way to signaling     

Vignesh Narayan Hariharan  Raji R. Nair  Deepak Kumar Saini 《Resonance》2013,18(6):530-542

The Nobel Prize in Chemistry, 2012 has been awarded to Robert J Lefkowitz and Brian K Kobilka for their studies on G-Protein Coupled Receptors (GPCRs). GPCRs are receptor proteins present on the cell surface, which are involved in sensing molecules outside the cell and initiating a cellular response. They can sense a wide variety of ligands ranging from light to hormones and small peptides, triggering various physiological responses. Today we understand the molecular mechanisms by which these receptors work largely due to the contributions of Lefkowitz and Kobilka. Owing to the role of GPCRs in cell communication and involvement in various disease conditions, they are targets of over 40% of current drugs in the market. These findings have not only revealed how GPCRs work, but have also made a huge impact on the field of GPCR-associated drug discovery.  相似文献   

From inactivity to encouragement: the contribution of Lord Elphinstone to the educational development of the Madras Presidency (1837–1842)     

Gautam Chandra  Veerendra Kumar Mishra   《History of education》2013,42(6):763-778

In light of the focus placed on English education by the colonial government, and the petition signed by 70,000 local inhabitants of the Madras Presidency, Lord John Elphinstone, the Governor, made efforts to disseminate English education during his governorship (1837–1842). Spurred on by the petition, Elphinstone wrote two fundamental educational minutes, in 1839 and 1841, and established Madras High School. Later, the School was transformed into Presidency College and became the first home of the University of Madras. Elphinstone’s planning led to the first systematic effort by the Madras government to impart English education. Subsequently, Elphinstone emphasised the dissemination of secular education and inclusion of native people in educational administration. Against this background, this paper discusses the contribution of Elphinstone to the educational development of Madras. It also questions the historiographical neglect of Elphinstone and challenges the established post-colonial discourse that the establishment of English institutions was a ‘colonialist’ imposition.  相似文献