14 research outputs found

    Sociological perspectives sociological perspectives on everyday life and the on everyday life and the social construction of school social construction of school failure a literature review

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    The sociological study of everyday life has developed largely around four major interconnected theoretical streams: symbolic interactionism, dramaturgical sociology, ethnomethodology and phenomenological sociology. Scholars who combine these with the study of social inequality have developed several ways of seeing how school failure gets created in everyday life. They have pointed to the importance of how oppressed and exploited communities look at education, at the relations of power in pedagogy and curricula, how students internalize ways of looking at class life that come from their social location and so on. These lead to both the reproduction of social inequality as well as resistances to it. Indian studies of the everyday life of schools are influenced by several of these theoretical perspectives. However, only a few studies have used them to explore how school failure gets socially constructed in the classroom. They tell us of the importance of designing curricula and pedagogies which connect with the knowledges, senses of the self and interactional modes of less powerful communities. Work in this area is underdeveloped and fragmented. While we have some insightful studies and theoretical perspectives to guide us in our interventions, there are also gaps and blind spots

    A survey on scheduling and mapping techniques in 3D Network-on-chip

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    Network-on-Chips (NoCs) have been widely employed in the design of multiprocessor system-on-chips (MPSoCs) as a scalable communication solution. NoCs enable communications between on-chip Intellectual Property (IP) cores and allow those cores to achieve higher performance by outsourcing their communication tasks. Mapping and Scheduling methodologies are key elements in assigning application tasks, allocating the tasks to the IPs, and organising communication among them to achieve some specified objectives. The goal of this paper is to present a detailed state-of-the-art of research in the field of mapping and scheduling of applications on 3D NoC, classifying the works based on several dimensions and giving some potential research directions

    Multiscale 3D hybrid carbon microelectrodes with candle soot and reduced GO nanoparticles as binder-free anode: An approach beyond 3D for high rate & high performance Li-ion batteries

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    The full potential of electrodes for superior electrochemical performance in lithium-ion batteries (LIB) is beyond the limits of conventional planar electrodes with higher mass loadings. In this article, we report a unique way to fabricate a hierarchical hybrid 3D microelectrodes architecture with low mass loading (~1.3 mg/cm2) for more effective and efficient lithium charge transport in LIB. To fabricate such hierarchical 3D microelectrodes, first, 3D carbon microelectrodes are prepared on stainless steel (SS) wafer via the carbon-MEMS approach followed by drop-casting reduced graphene oxide (rGO) nanoflakes and candle soot carbon nanoparticles solution on these 3D microelectrodes. As-fabricated hierarchical 3D microelectrodes are then tested as an anode in LIB that enabled high current density operations with enhanced specific capacities. 3D carbon hierarchical microelectrodes based on rGO and candle soot carbon nanoparticles with SS substrate deliver high specific capacities of 560 and 462 mAhg−1 at 250 mAg−1 current density after 100 cycles, respectively. Post cycling analysis after 100 cycles confirms the structural integrity of the electrodes. Further, the finite element method is used to investigate and predict the time-dependent Li-ion gradient within the 3D microelectrodes that confirms much improved Li-ion diffusion kinetics over conventional flat electrodes. © 2020 Elsevier B.V

    Sociological Perspectives on Everyday Life and The Social Construction of School Failure: A Literature Review

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    The sociological study of everyday life has developed largely around four major interconnected theoretical streams: symbolic interactionism, dramaturgical sociology, ethnomethodology and phenomenological sociology. Scholars who combine these with the study of social inequality have developed several ways of seeing how school failure gets created in everyday life. They have pointed to the importance of how oppressed and exploited communities look at education, at the relations of power in pedagogy and curricula, how students internalize ways of looking at class life that come from their social location and so on. These lead to both the reproduction of social inequality as well as resistances to it. Indian studies of the everyday life of schools are influenced by several of these theoretical perspectives. However, only a few studies have used them to explore how school failure gets socially constructed in the classroom. They tell us of the importance of designing curricula and pedagogies which connect with the knowledges, senses of the self and interactional modes of less powerful communities. Work in this area is underdeveloped and fragmented. While we have some insightful studies and theoretical perspectives to guide us in our interventions, there are also gaps and blind spots

    Sociological perspectives sociological perspectives on everyday life and the on everyday life and the social construction of school social construction of school failure a literature review

    No full text
    The sociological study of everyday life has developed largely around four major interconnected theoretical streams: symbolic interactionism, dramaturgical sociology, ethnomethodology and phenomenological sociology. Scholars who combine these with the study of social inequality have developed several ways of seeing how school failure gets created in everyday life. They have pointed to the importance of how oppressed and exploited communities look at education, at the relations of power in pedagogy and curricula, how students internalize ways of looking at class life that come from their social location and so on. These lead to both the reproduction of social inequality as well as resistances to it. Indian studies of the everyday life of schools are influenced by several of these theoretical perspectives. However, only a few studies have used them to explore how school failure gets socially constructed in the classroom. They tell us of the importance of designing curricula and pedagogies which connect with the knowledges, senses of the self and interactional modes of less powerful communities. Work in this area is underdeveloped and fragmented. While we have some insightful studies and theoretical perspectives to guide us in our interventions, there are also gaps and blind spots

    Carbon-MEMS based rectangular channel microarrays embedded pencil trace for high rate and high-performance lithium-ion battery application

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    The miniaturization of a lithium-ion battery has been an aspiration in portable electronic devices and a possible method of implementation is by changing the electrode configuration from a 2D system to a 3D one. A carbon microelectromechanical system is a plausible execution of lithium-ion storage from 2D carbon films to 3D structures. However, the use of semiconducting silicon as a substrate for 3D structures and dendrite formation are hurdles. The present work describes the fabrication of 3D carbon rectangular channels on a pencil-traced stainless steel current collector and its utilization as the anode in a lithium-ion battery. Detailed physical and electrochemical studies demonstrate the advantage of this electrode in terms of reversible storage capacity and the establishment of a low resistance path for an electrochemical reaction. The cell exhibits an extraordinary capacity of 2000 mA h g-1 at 150 mA g-1 and it retained a capacity of ∼400 mA h g-1 even at 10 000 mA g-1 after 1750 cycles. Also, the full-cell prototype further proves the potency of this electrode. Additionally, the time-dependent Li-ion concentration gradient across the 3D carbon rectangular channels is estimated using a diffusion-limited model. These simulation studies clearly suggest that Li-ion diffusion is more favorable in 3D carbon rectangular channels than in 2D films. This journal is © The Royal Society of Chemistry

    Protective interlayer for trapping polysulfides and a conducting host for sulfur: dual role of candle soot carbon for the development of high performance lithium–sulfur batteries

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    The commercial realization of next-generation lithium-sulfur (Li-S) batteries is mainly hindered due to the unwanted lithium polysulfide shuttling and the insulating nature of the sulfur cathode. In the present work, we aim to overcome these critical challenges by the first-time usage of candle soot carbon as a conducting host as well as an inbuilt interlayer. The Li-S battery thus fabricated delivers an impressive capacity of 1182 mA h g-1 with 92% coulombic efficiency at 0.1C. This excellent electrochemical performance is further maintained in long cycling even at a higher C-rate (1C) and exhibits a capacity of 667 mA h g-1 after 200 cycles with coulombic efficiency ∼95% (an extremely slow capacity decay rate of 0.03% per cycle). Moreover, for a high-sulfur loading (4.5 mg cm-2) electrode the Li-S battery retains 61.3% of the initial capacity after cycling for 150 cycles at 2.0C. Further, to understand the functional mechanism of the carbon interlayer for anchoring lithium polysulfides, first principles calculations are performed based on density functional theory. To the best of our knowledge, this is the first such report on using inexpensive candle soot carbon as a cathode host and as an interlayer that results in outstanding electrochemical performance

    To study the association between various levels of cord serum albumin (CSA) and significant neonatal hyperbilirubinemia requiring interventions like phototherapy or exchange transfusion

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    Introduction: Hyperbilirubinemia is most common normal physiological phenomenon in neonates affecting almost one third of newborn.it may lead to neuro disability leading to deafness and cerebral palsy which can be prevented if detected and treated as soon as possible. Albumin is produced in seventh week of intrauterine life and it can be measured by cord blood and in this study we can establish serum albumin with neonatal hyperbilirubinemia and can be treated by phototherapy or exchange transfusion. Material and Method: The study consists of 55 randomly selected eligible term neonates delivered at Rajendra Institute of Medical sciences from March 2019 to August 2020. Conclusion: In this study, in term neonates, level of serum albumin in umbilical cord less than 2.8 g/dl has no correlation with occurrence significant hyperbilirubinemia, so a level 3.4 gm/dl is considered safe in neonates who are the candidates for early discharge in the absence of other risk factors
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