Orthographic characteristics speed Hindi word naming but slow Urdu naming: evidence from Hindi/Urdu biliterates     

Chaitra Rao  Jyotsna Vaid  Narayanan Srinivasan  Hsin-Chin Chen 《Reading and writing》2011,24(6):679-695

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Reality versus Simulation   总被引：1，自引：1，他引：1  

Srilekha Srinivasan  Lance C. Pérez  Robert D. Palmer  David W. Brooks  Kathleen Wilson  David Fowler 《Journal of Science Education and Technology》2006,15(2):137-141

A systematic study of the implementation of simulation hardware (TIMS) replacing software (MATLAB) was undertaken for advanced undergraduate and early graduate courses in electrical engineering. One outcome of the qualitative component of the study was remarkable: most students interviewed (4/4 and 6/9) perceived the software simulations as “fake”. Professionals, on the other hand, find such simulations as essentially perfectly replacing data from “real” systems. The implications of this large difference in perception between advanced undergraduate/early graduate students and professionals are discussed. At present, suitable theoretical frameworks related to motivation do not afford satisfactory explanation for this observation.Work done at the Department of Electrical Engineering, University of Nebraska-Lincoln  相似文献   

Climate change,greenhouse gases and aerosols     

J. Srinivasan 《Resonance》2008,13(12):1146-1155

The surface temperature of the earth is controlled by the balance between the absorbed solar radiation and the emitted infrared radiation. During the past 150 years the amount of carbon dioxide in the earth’s atmosphere has increased from 280 parts per million to more than 380 parts per million on account of burning of fossil fuels. The higher absorption of infrared radiation by the atmosphere (on account of higher carbon dioxide) has resulted in an increase in the surface temperature of the earth. The burning of fossil fuels has also caused an increase in sulphate and soot aerosols in the atmosphere. Both these aerosols reduce the solar radiation incident at the earth surface. Hence the surface of the earth has cooled on account of increase in aerosols. The sulphate aerosols have also cooled the atmosphere but the soot aerosols, which absorb solar radiation, have heated the atmosphere. The net impact of increase in carbon dioxide and aerosols has been an increase in the surface temperature of the earth by 0.7 degrees centigrade in the past 100 years. J Srinivasan is a Professor at the Centre for Atmospheric and Oceanic Sciences at Indian Institute of Science, Bangalore. He was a lead author in the second and fourth reports of the Intergovernmental Panel on Climate Change (IPCC).  相似文献   

Reliability — How to quantify and improve?     

N. K. Srinivasan 《Resonance》2000,5(5):55-63

The basic concepts relating to reliability, including the statistical distributions employed are explained in this article. The approach of physicists, material scientists and engineers to improve reliability are emphasized.The qualitative measures would greatly help in improving quality and life of the products we use.  相似文献   

A paradox in radiation heat transfer     

J Srinivasan 《Resonance》2007,12(4):85-91

Heat transfer between two surfaces usually increases when the temperature difference between the two surfaces increases. Here we highlight an unusual situation in radiation heat transfer wherein the heat transfer decreases when the temperature difference increases.  相似文献   

Effect of hemodialysis on circulating cystatin c levels in patients with end stage renal disease     

N. Krishnamurthy  K. Arumugasamy  U. Anand  C. V. Anand  V. Aruna  G. Venu  R. Gayathri 《Indian journal of clinical biochemistry : IJCB》2010,25(1):43-46

Plasma cystatin C is an emerging parameter to assess kidney function. Its utility in assessing the adequacy of hemodialysis in patients with end-stage-renal disease has however not been established with certainty. This study was therefore carried out to assess the usefulness of serum cystatin C estimation in patients undergoing low flux membrane hemodialysis. Serum creatinine and cystatin C were estimated in 20 patients before and after undergoing hemodialysis. The mean serum creatinine decreased from a pre-dialysis value of 7.72 mg/dL to a post-dialysis value of 2.90 mg/dL. On the contrary, the mean serum cystatin C levels were found to increase from a pre-dialysis value of 5.97 mg/L to a post-dialysis value of 8.25 mg/L. Therefore, serum cystatin C cannot be used to monitor dialysis adequacy. It however, serves as a surrogate marker of the inadequacy of low flux membrane bicarbonate hemodialysis in clearing low molecular weight proteins from the circulation.  相似文献   

Digital Museums and Diverse Cultural Knowledges: Moving Past the Traditional Catalog     

Ramesh Srinivasan  Robin Boast  Jonathan Furner  Katherine M. Becvar 《The Information Society》2013,29(4):265-278

Web 2.0 technologies have introduced increasingly participatory practices to creating content, and museums are becoming interested in the potentials of “Museum 2.0” for reaching and engaging with new audiences. As technological advances are opening up the ways in which museums share information about the objects in their collections, the means by which museums create, handle, process, and transmit knowledge has become more transparent. For this to be done effectively, however, some underlying contradictions must be resolved between museum practices, which privilege the account of the “expert,” and distributed social technology practices, whose strengths lie in allowing for many, sometimes contradictory, perspectives. This article presents a theoretical position and framework for the adaptation of Web 2.0 technologies within the traditional work of the museum, in ways that support the generation and representation of knowledge in, by, and for diverse communities. We then expand on this theoretical perspective by discussing several case studies of exploratory work in this area, and close the article by presenting a few tactical, bottom-up initiatives that museums and distributed communities can take to facilitate the diffusion of this new conceptual framework. Though the subject of this article is online museums, the issues are relevant to all online collections, in particular portals, online public access catalogs (OPAC), and content management systems.  相似文献   

Transportation infrastructure settlement and heave distress: challenges and solutions     

Anand J. Puppala  Bhaskar C. S. Chittoori 《浙江大学学报(A卷英文版)》2012,13(11):850-857

Transportation agencies spend millions of dollars annually to repair civil transportation infrastructure including pavements, earth structures and approach slabs distressed by soft compressible soils and expansive soils. Several research studies performed at the University of Texas at Arlington (UTA) focused on stabilizing these problematic soils so that they will provide better and more stable support to the transportation infrastructure. This paper focuses on a summary of two major distresses and mechanisms, and remedial measures for addressing these distress problems. A combined lime-cement stabilization method is fully evaluated in providing better support of pavement infrastructure, and these results are described here. Another major transportation infrastructure problem involving bridge approach slabs requires different treatment methods, and these results are briefly described. As a part of the recently completed research study assessments, both shallow and deep soil treatment methods for stabilizing soils are fully evaluated for their effectiveness in arresting the distress posed to the pavements and bridge approach slabs. These results along with a few future research needs are presented in this paper.  相似文献   

Interrelationship Between Procalcitonin and Organ Failure in Sepsis     

Dimple Anand  Sabari Das  Sumit Ray  Seema Bhargava  Lalit Mohan Srivastava 《Indian journal of clinical biochemistry : IJCB》2014,29(1):93-96

Sepsis suffers from lack of specific clinical symptoms which contribute to one of the major causes of mortality. In the present study, our aim was to evaluate the role of a recent biomarker Procalcitonin (PCT) in predicting organ dysfunction. 71 patients admitted with sepsis were included in the study. PCT levels were measured at 0, 24, 72 h and 7th day and sequential organ failure assessment score (SOFA) scores were calculated. PCT levels significantly decreased (p < 0.001) in 89.3 % of surviving patients, whereas, in 60 % non surviving patients the PCT level increased significantly (p < 0.001). A significant positive correlation between PCT and SOFA score was observed in survivors at each hour. These observations indicate that PCT concentration is significantly associated with severity of multi organ dysfunction and also helps in determining the prognosis of septic patients.  相似文献   

The effect of school inspections on school improvement     

Holger Gaertner  Sebastian Wurster  Hans Anand Pant 《School Effectiveness & School Improvement》2013,24(4):489-508

This study uses a school-level longitudinal control-group design to examine how teachers and principals of inspected versus uninspected schools perceive school improvement at their schools. During the phasing in of school inspections in the states of Berlin and Brandenburg (Germany), both inspected and uninspected schools were surveyed with respect to school improvement activities over a 1-year period. The main finding is that principals’ and teachers’ perceptions of school quality were highly stable, irrespective of the introduction of school inspections. The results show school inspections had a comparatively low impact on the aspects of school quality measured here.  相似文献