Classics     

J. Srinivasan 《Resonance》2008,13(11):1082-1086

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Second sound     

R. Srinivasan 《Resonance》1999,4(6):15-19

In Part 1¹ we describe the propagation of temperature and entropy as waves superfluids emphasizing the experimental demonstration of their existence. Here we dwell upon a microscopic view of these waves and point out that they can exist even in crystals at low temperatures.  相似文献   

A review of ranking approaches for semantic search on Web     

Vikas Jindal  Seema Bawa  Shalini Batra 《Information processing & management》2014

With ever increasing information being available to the end users, search engines have become the most powerful tools for obtaining useful information scattered on the Web. However, it is very common that even most renowned search engines return result sets with not so useful pages to the user. Research on semantic search aims to improve traditional information search and retrieval methods where the basic relevance criteria rely primarily on the presence of query keywords within the returned pages. This work is an attempt to explore different relevancy ranking approaches based on semantics which are considered appropriate for the retrieval of relevant information. In this paper, various pilot projects and their corresponding outcomes have been investigated based on methodologies adopted and their most distinctive characteristics towards ranking. An overview of selected approaches and their comparison by means of the classification criteria has been presented. With the help of this comparison, some common concepts and outstanding features have been identified.  相似文献   

Double codes: Community radio in Bolivia     

Ramesh Srinivasan  Juan Ramos-Martín 《The Information Society》2013,29(5):289-301

Abstract

In this article, we report results of interviews conducted with 20 informants at 8 community radio stations across the major regions of Bolivia. We explore the activism and community practices that have energized Bolivian community radio stations over a sustained period. We are in particular interested in the bottom-up networking by these community stations to interlink with each other. These networks actualize the goals of horizontal and participatory communication called for by Latin American theorists. We seek to learn from these endeavors and also contribute to their continued flourishing by analyzing potential threats to them.  相似文献   

Indian = Hindu? The Development of Nationalist Attitudes Among Hindu and Muslim Children in India     

Monica E. Ellwood-Lowe  Catherine Berner  Yarrow Dunham  Mahesh Srinivasan 《Child development》2020,91(4):1375-1394

Many political movements across the world today define citizenship in exclusionary ethnic or religious terms. This study extends research on ethnic–national associations in adults to children, adding to the relatively sparse literature on the development of national associations in children and in nonwestern contexts. Explicit and implicit religious–national associations were examined in a sample of 160 nine- to sixteen-year-olds (79 Hindu; 81 Muslim) in Gujarat, India. Results suggest that while Hindu children show a strong Indian = Hindu association by age 9, Muslim children appear to be buffered from this association. Furthermore, this association uniquely predicts variance in children’s attitudes about social policy and their concept of nationality, above and beyond their age, religion, and intergroup attitudes.  相似文献   

Does LDL-C Estimation Using Anandaraja’s Formula Give a Better Agreement with Direct LDL-C Estimation than the Friedewald’s Formula?     

Shalini Gupta  Minni Verma  Kamaljit Singh 《Indian journal of clinical biochemistry : IJCB》2012,27(2):127-133

Estimation of low density lipoprotein cholesterol (LDL-C) is crucial in management of coronary artery disease patients. Though a number of homogenous assays are available for estimation of LDL-C, use of calculated LDL-C by Friedewald’s formula (FF) is common in Indian laboratories for logistic reasons. Recently Anandaraja and colleagues have derived a new formula for calculating LDL-C. This formula needs to be evaluated before it is extensively applied in diagnosis. We measured LDL-C by homogenous method (D-LDL-C) in 515 fasting samples. Friedewald’s and Anandaraja’s formulas were used for calculation of LDL-C (F-LDL-C and A-LDL-C, respectively). The mean LDL-C levels were 123.3 ± 53.2, 112.4 ± 50.2 and 109.2 ± 49.8 mg/dl for D-LDL-C, F-LDL-C and A-LDL-C, respectively. There was a statistically significant difference between the results (P > 0.001) obtained by calculation formulas compared to the measured LDL-C. There was underestimation of LDL-C by 10.8 and 14 mg/dl by Friedewald’s and Anandaraja’s formulas respectively. The Pearson’s correlation between F-LDL-C and D-LDL-C was 0.931 and that between A-LDL-C and D-LDL-C was 0.930. Bland–Altman graphs showed a definite agreement between mean and differences of the calculation formulas and direct LDL-C with 95% of values lying with in ±2 SD limits. The mean percentage difference (calculated as {(Calculated LDL-C)-(D-LDL-C)}/D-LDL-C × 100) for F-LDL-C was maximum (−11.6%) at HDL-C ≥ 60 mg/dl and TG levels of 200–300 mg/dl (−10.4%) compared to D-LDL-C. A-LDL-C results gave highest mean percentage difference at total cholesterol concentrations <100 mg/dl (−37.3%) and HDL-C < 40 mg/dl (−17.1%), respectively. The results of our study showed that FF is better in agreement with D-LDL-C than Anandaraja’s formula for estimation of LDL-C by calculation though both lead to its underestimation.  相似文献   

The wonder years: A profile of Madhav Chavan     

Shalini Mukerji 《Prospects》2017,47(3):293-304

An idea took shape in the slums of Mumbai in the early nineties and went on to become a peoples’ movement to address the problem of providing quality education for all of India’s children. This piece profiles Dr. Madhav Chavan, the man who provided the dynamic vision for and creative leadership of that mission/movement. Dr. Chavan combined the wisdom of an ancient Chinese philosopher and lessons from the fast-food restaurant model to develop innovations in education that are enabling children and youth to learn. His unwavering focus on the human values behind the big numbers, as well as his celebration of the joy and wonder at the heart of all learning, are a large part of the educational story that is unfolding in faraway villages in India and providing a trigger for social change. This article is an attempt to present his contributions to education innovation in India.  相似文献   

Examining the relationship among student perception of support, course satisfaction, and learning outcomes in online learning     

Sang Joon Lee  Sandhya Srinivasan  Trudian Trail  David Lewis  Samantha Lopez 《The Internet and Higher Education》2011,14(3):158-163

Support for student learning is a key element in optimizing student learning experiences in any learning environment and its importance has been widely discussed. This study looked at student support, particularly in the course context, focusing mainly on guidance provided to students within a course. Three categories of support were identified and used for the purpose of this study: instructional, peer, and technical support. A total of 110 students completed an online survey on students' perceptions of support and course satisfaction in an undergraduate online course at a large southeastern university. The results showed perceived support was significantly related to their overall satisfaction of the online course. The findings of this study suggest that teachers should communicate what types of support are available to students and provide an easy way of accessing and taking advantage of the support.  相似文献   

The dynamics and stability of lubricating oil films during droplet transport by electrowetting in microfluidic devices     

Jairus Kleinert  Vijay Srinivasan  Arnaud Rival  Cyril Delattre  Orlin D. Velev  Vamsee K. Pamula 《Biomicrofluidics》2015,9(3)

The operation of digital microfluidic devices with water droplets manipulated by electrowetting is critically dependent on the static and dynamic stability and lubrication properties of the oil films that separate the droplets from the solid surfaces. The factors determining the stability of the films and preventing surface fouling in such systems are not yet thoroughly understood and were experimentally investigated in this study. The experiments were performed using a standard digital microfluidic cartridge in which water droplets enclosed in a thin, oil-filled gap were transported over an array of electrodes. Stable, continuous oil films separated the droplets from the surfaces when the droplets were stationary. During droplet transport, capillary waves formed in the films on the electrode surfaces as the oil menisci receded. The waves evolved into dome-shaped oil lenses. Droplet deformation and oil displacement caused the films at the surface opposite the electrode array to transform into dimples of oil trapped over the centers of the droplets. Lower actuation voltages were associated with slower film thinning and formation of fewer, but larger, oil lenses. Lower ac frequencies induced oscillations in the droplets that caused the films to rupture. Films were also destabilized by addition of surfactants to the oil or droplet phases. Such a comprehensive understanding of the oil film behavior will enable more robust electrowetting-actuated lab-on-a-chip devices through prevention of loss of species from droplets and contamination of surfaces at points where films may break.  相似文献   

Evaluation of the changes in serum iron levels in pre-eclampsia     

Shalini Gupta  Smiti Nanda  Uma Singh  Sadhna Bansal  Harbans Lal 《Indian journal of clinical biochemistry : IJCB》1997,12(1):91-94

Serum iron levels were studied in 50 patients with pre-eclampsia and the results were compared with 50 control cases. Their serum iron levels were found to be higher than the controls. Increase in serum iron was directly proportional to the increased levels of uric acid, urea and creatinine. Mean reticulocyte counts, plasma free haemoglobin and unconjugated bilirubin levels were also higher in these patients. It is suggested that haemolysis may be a major contributory factor for the increased levels of serum iron in pre-eclampsia.  相似文献