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   

The influence of achievement goal orientation on plagiarism     

Ravinder Koul  Roy B. Clariana  Kalayanee Jitgarun  Alisa Songsriwittaya 《Learning and individual differences》2009,19(4):506-512

This investigation considered how undergraduate students with different achievement goal orientation profiles view plagiarism. Thai student volunteers (N = 867) completed an achievement goal survey [Niemivirta, M. (1998). Individual differences in motivational and cognitive factors affecting self-regulated learning — A pattern-oriented approach. In P. Nenninger, R. S. Jäger, A. Frey, & M. Woznitza (Eds.), Advances in motivation (pp. 23–42). Landau, DE: Verlad Empirische Pädagogik] and a “Dimensions of Plagiarism” survey [Koul, R. (2007). Dimensions of Plagiarism. Downloaded April 8, 2008 from http://dimensions-of-plagiarism.wikispaces.com/]. Mixed analysis of variance of attitudes towards plagiarism with goal orientation and gender showed several significant findings: high performance oriented students were substantially stricter than low performance orientated students in evaluating all Dimensions of Plagiarism. Low mastery oriented students were stricter regarding the “motive” dimension of plagiarism while high mastery oriented students were stricter regarding the “source” dimension of plagiarism. Significant differences between females and males were observed across the six factors of the Dimensions of Plagiarism survey. These results are interpreted within the framework of social comparison theory in respect to competitive learning environments.  相似文献   

Human governance: A neglected mantra for continuous performance improvement     

Arfah Salleh  Aziuddin Ahmad  Naresh Kumar 《Performance Improvement》2009,48(9):26-30

Every individual should be entrusted with an internal driver to strive their best towards achieving their potential and to manifest their performance through innovative means. This can be reached only under circumstances where the abstract human values and principles are recognized and indoctrinated in the culture. The strategies discussed in this article will serve as input in proposing the areas of focus toward the practice of human governance.  相似文献   

Building a customized module for the treatment of drug addiction under the remedial programs to be implemented on inmates at the drug rehabilitation centers in Malaysia     

Jamaludin Ahmad Tajularipin Sulaiman Saifuddin Kumar Abdullah Junaidi Shamsuddin 《美中教育评论》2009,6(11):57-64

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The ‘brand name’ research university goes global     

Ravinder Sidhu 《Higher Education》2009,57(2):125-140

This paper traces attempts by two ‘brand-name’ research universities to transnationalise: the US-based Johns Hopkins University, and the University of New South Wales from Australia. Both endeavours were located in, and supported by, Singapore, a city–state with knowledge economy aspirations. The paper explores the globalisation of the research university, and offers insights into the regimes of value that are being assembled in, and through knowledge economies. Both institutions examined in this study failed in their attempts ostensibly because of a lack of fit in goals and commitment. The paper also highlights the ethical issues that frame the globalizing rationalities of research-intensive universities and developmental states seeking competitive advantage in a neoliberalising environment.  相似文献   

Surface-enhanced Raman spectroscopy
Recent advancement of Raman spectroscopy     

Ujjal Kumar Sur 《Resonance》2010,15(2):154-164

In Raman spectroscopy, inelastic scattering of photons from an atomor molecule in chemical entities is utilized to analyze the composition of solids, liquids and gases. However, the low cross-section limits its applications. The introduction of surface-enhancedRamanspectroscopy in 1974has attracteda lot of attention fromresearchers due to the large enhancement of weak Raman signal,which facilitates identification in chemical and biological systems. Recently, single-molecule Raman scattering has enhanced the detection sensitivity limit of Raman Spectroscopy.  相似文献   

A Sneak Peek into 5G Communications     

Udit Narayana Kar  Debarshi Kumar Sanyal 《Resonance》2018,23(5):555-572

The world of mobile communications is poised for yet another disruptive transformation – the introduction of 5G. It will change the way mobile phones communicate. New technologies at the device level and novel network architectures to manage them will be soon seen everywhere. This article explores what 5G is all about. It also talks briefly about the preparations underway across the globe to deploy 5G by 2020.  相似文献   

Burning,Fluttering, and Extinguishing of a Candle Flame in a Tube     

Pratyush Agarwal  Navneet Kumar  Jaywant H Arakeri 《Resonance》2018,23(11):1273-1281

In this article, we report some experimental results on the behaviour of the flame of a candle kept at the bottom of a glass tube, which is open at the top and closed at the bottom. Thus, the supply of oxygen for the continuous burning of the flame is possible only from the top open end of the tube. We find that the candle burns steadily below a critical tube height. Above this height, the flame oscillates in size, and a further increase in tube height leads to the flame extinguishing quickly.  相似文献   

Neurochemical and Behavioral Dysfunctions in Pesticide Exposed Farm Workers: A Clinical Outcome     

Rajesh Kumar Kori  Manish Kumar Singh  Abhishek Kumar Jain  Rajesh Singh Yadav 《Indian journal of clinical biochemistry : IJCB》2018,33(4):372-381

The problem of pesticides is not new and its exposure to human due to indiscriminate use is largely associated with the health related problems including neurotoxicological alterations. High levels of pesticide residues and their metabolites in the dietary constituents, food materials, maternal blood, cord blood, placenta breast milk have been reported and linked to alterations in birth weight, crown heel length, head circumference, mid-arm circumference and ponderal index of the neonates. Epidemiological studies have suggested that exposure of pesticide to human could be a significant risk factor for neurological disorders, including Parkinson’s disease, Alzheimer’s disease and multiple sclerosis. Cholinergic and non-cholinergic dysfunctions in pesticide exposed population, especially in children have also been frequently reported in recent years. Developmental neurotoxicity is another concern in the area where pregnant are more prone towards its exposure and which results in the abnormalities in the fetus. In view of the increasing risk of human health through pesticide exposure, the present review has been focused on the studies pertaining to pesticide induced neurochemical alterations and associated behavioral abnormalities in farm workers which could establish a possible link between the its exposure and associated health hazards.  相似文献   

A Narrative Review of Potential Future Antidiabetic Drugs: Should We Expect More?     

Gaurav Chikara  Pramod Kumar Sharma  Pradeep Dwivedi  Jaykaran Charan  Sneha Ambwani  Surjit Singh 《Indian journal of clinical biochemistry : IJCB》2018,33(2):121-131

Prevalence of diabetes mellitus, a chronic metabolic disease characterized by hyperglycemia, is growing worldwide. The majority of the cases belong to type 2 diabetes mellitus (T2DM). Globally, India ranks second in terms of diabetes prevalence among adults. Currently available classes of therapeutic agents are used alone or in combinations but seldom achieve treatment targets. Diverse pathophysiology and the need of therapeutic agents with more favourable pharmacokinetic-pharmacodynamics profile make newer drug discoveries in the field of T2DM essential. A large number of molecules, some with novel mechanisms, are in pipeline. The essence of this review is to track and discuss these potential agents, based on their developmental stages, especially those in phase 3 or phase 2. Unique molecules are being developed for existing drug classes like insulins, DPP-4 inhibitors, GLP-1 analogues; and under newer classes like dual/pan PPAR agonists, dual SGLT1/SGLT2 inhibitors, glimins, anti-inflammatory agents, glucokinase activators, G-protein coupled receptor agonists, hybrid peptide agonists, apical sodium-dependent bile acid transporter (ASBT) inhibitors, glucagon receptor antagonists etc. The heterogeneous clinical presentation and therapeutic outcomes in phenotypically similar patients is a clue to think beyond the standard treatment strategy.  相似文献