Conservative force or contradictory resource? Education and affirmative action in Jharkhand,India

This article explores the combination of education and affirmative action in challenging historic inequalities faced by adivasis, or indigenous peoples, living in a remote region of Eastern India. We show how the combined effects of education and affirmative action can act as a ‘contradictory resource’. On the one hand, policies of affirmative action are enabling young educated adivasis – the children of subsistence farmers and manual labourers – to benefit from the creation of new, rural state jobs. We show how without affirmative action, such jobs may well have been monopolised by a local elite of higher castes. On the other hand, we argue several conservative processes have accompanied these changes. First, the reserved jobs secured by adivasis are relatively badly paid and insecure. Second, these jobs have not enabled relative progress for adivasis vis-à-vis traditional elites who are moving out of rural areas and diversifying their livelihoods. Third, young educated adivasis have begun to emulate the norms, values and ways of life of the local elite. This ‘culture of emulation’ is fostering new inequalities between educated adivasis and their poorer kin, who face increasing proletarianisation. The contradictory resource, we argue, concerns not only inequalities in accessing certain jobs, but also the creation of new forms of differentiation among historically marginalised people. We conclude by setting these findings within the wider complex relations emerging between caste, ethnicity and class in contemporary India.     

Renewing quality assurance at a time of turbulence

The current national and institutional focus on teaching and learning in higher education (HE) in the UK has led to a growing credentialisation of those teaching in this sector. There is now more emphasis on being recognised as being qualified to teach in HE and this information is being included in statistical reports, marketing documentation and other promotional materials. Thus, having a recognised qualification is becoming requisite for many, both those new to teaching in this sector and experienced colleagues, who hitherto had never needed to consider this. This paper considers some of the practicalities and potential pitfalls of introducing a professional recognition scheme for those involved in teaching and supporting learning across a university.     

Involvement of endothelial progenitor cells in the formation of plexiform lesions in broiler chickens: possible role of local immune/inflammatory response

Plexiform lesions (PLs), which are often accompanied by perivascular infiltrates of mononuclear cells, represent the hallmark lesions of pulmonary arteries in humans suffering from severe pulmonary arterial hypertension (PAH). Endothelial progenitor cells (EPCs) have been recently implicated in the formation of PLs in human patients. PLs rarely develop in rodent animal models of PAH but can develop spontaneously in broiler chickens. The aim of the present study was to confirm the presence of EPCs in the PLs in broilers. The immune mechanisms involved in EPC dysfunction were also evaluated. Lungs were collected from commercial broilers at 1 to 4 weeks of age. The right/total ventricle ratios indicated normal pulmonary arterial pressures for all sampled birds. Immunohistochemistry was performed to determine the expressions of EPC markers (CD133 and VEGFR-2) and proangiogenic molecule hepatocyte growth factor (HGF) in the lung samples. An EPC/lymphocyte co-culture system was used to investigate the functional changes of EPCs under the challenge of immune cells. PLs with different cellular composition were detected in the lungs of broilers regardless of age, and they were commonly surrounded by moderate to dense perivascular mononuclear cell infiltrates. Immunohistochemical analyses revealed the presence of CD133⁺ and VEGFR-2⁺ cells in PLs. These structures also exhibited a strong expression of HGF. Lymphocyte co-culture enhanced EPC apoptosis and completely blocked HGF-stimulated EPC survival and in vitro tube formation. Taken together, this work provides evidence for the involvement of EPCs in the development of PLs in broilers. It is suggested that the local immune cell infiltrate might serve as a contributor to EPC dysfunction by inducing EPC death and limiting their response to angiogenic stimuli. Broiler chickens may be valuable for investigating reversibility of plexogenic arteriopathy using genemodified inflammation-resistant EPCs.     

小学语文教本才中创新教育素材资源的开发与利用

站在资源科学的角度，将小学语文教学与创造性人才的培养有机地结合起来，即充分发现和科学加工小学语文教材中存在的创造性案例、创造性成果等方面的创新教育素材资源，并针对它们各自的特点，恰当地用于课堂教学，这是小学语文教师有效地实施创新教育的良策。     

Leading multi‐ethnic schools: adjustments in concepts and practices for engaging with diversity 1

The student population across world is increasingly reflective of diverse cultures, religions and ethnicities. This rich diversity may become a challenge for educational leaders, teachers, and policy‐makers in the absence of an understanding of diverse sources of knowledge people draw on for directing their beliefs and daily practices. This paper explores the multi‐ethnic context in Britain with a focus on Muslim students in English secondary schools, and argues for drawing on diverse ethnic knowledge sources to inform and enrich approaches towards managing diversity. It discusses the concept of Adab derived from Muslim ethics and philosophy, and debates possible contributions of such conceptual adaptations towards improving educational engagement and performance.     

Using Learning Style Instruments to Enhance Student Learning

The emergence of numerous learning style models over the past 25 years has brought increasing attention to the idea that students learn in diverse ways and that one approach to teaching does not work for every student or even most students. We have reviewed five learning style instruments (the Kolb Learning Style Indicator, the Gregorc Style Delineator, the Felder–Silverman Index of Learning Styles, the VARK Questionnaire, and the Dunn and Dunn Productivity Environmental Preference Survey) in this article in order to describe the learning style modes or dimensions measured in the instruments; find the common measures and the differences; report on research on instrument validity, reliability, and possible improvement in student performance; suggest classroom activities that work with the different student learning styles; and recommend selection of models under several conditions. We also review one additional learning style instrument, the Revised Approaches to Studying Inventory, as a complementary approach to using one or more of the first five learning style instruments.     

FOR THE GOOD OF OTHERS: CENSORSHIP AND THE THIRD-PERSON EFFECT

The third person effect hypothesis, which states that individualsexposed to a mass media messaage will expect the communicationto have a greater effect on others than on themselves, may helpto explain the growing trend in support of media censorship.It is suggested here that overestimating the effect of mediaon others may play an important role in the forces underlyinga willingness to restrict various types of communication. Toexamine this relationship, this study focused on the discrepancybetween perceived media effects on others and self, and itsrelation to pro-censorship attitudes within three major topics:the media in general, violence on television, and pornography.The results of this study support the existence of the third-personeffect in mass communication. The findings also indicate thatas the gap between perceived firstand third-person effects increases,individuals are more likely to manifest pro-censorship attitudes.This relationship remained for all three topics even when avariety of potentially confounding demographic, media use, andattitudinal variables were controlled. The data also suggestthat for pornography the effects gap is related to a willingnessto act in favor of censoring.     

A comparative study of conventional and supercritical fluid extraction methods for the recovery of secondary metabolites from <Emphasis Type="Italic">Syzygium campanulatum</Emphasis> Korth

Syzygium campanulatum Korth is a plant, which is a rich source of secondary metabolites (especially flavanones, chalcone, and triterpenoids). In our present study, three conventional solvent extraction (CSE) techniques and supercritical fluid extraction (SFE) techniques were performed to achieve a maximum recovery of two flavanones, chalcone, and two triterpenoids from S. campanulatum leaves. Furthermore, a Box-Behnken design was constructed for the SFE technique using pressure, temperature, and particle size as independent variables, and yields of crude extract, individual and total secondary metabolites as the dependent variables. In the CSE procedure, twenty extracts were produced using ten different solvents and three techniques (maceration, soxhletion, and reflux). An enriched extract of five secondary metabolites was collected using n-hexane:methanol (1:1) soxhletion. Using food-grade ethanol as a modifier, the SFE methods produced a higher recovery (25.5%?84.9%) of selected secondary metabolites as compared to the CSE techniques (0.92%?66.00%).     

Sickle Cell Trait Presenting as Chronic Calcific Pancreatitis with Pseudocyst- A Case Report

Sickle cell disease is known to cause acute pancreatitis either due to gall stones obstructing the pancreatic duct or by vaso-occlusive mechanism. However chronic pancreatitis is a very rare complication in sickle cell anemia. We report a case of sickle cell trait presenting with chronic pancreatitis with pseudo cyst. USG abdomen and CT abdomen confirmed the diagnosis of chronic calcific pancreatitis with pseudocyst. Etiological work up for other causes did not reveal anything except sickle cell trait. This case represents a rare association between chronic calcific pancreatitis and sickle cell trait.