Connecting inside out: Development of the social brain in infants and toddlers with a focus on myelination as a marker of brain maturation     

Nora Schneider  Elizabeth Greenstreet  Sean C. L. Deoni 《Child development》2022,93(2):359-371

Early childhood is a sensitive period for learning and social skill development. The maturation of cerebral regions underlying social processing lays the foundation for later social-emotional competence. This study explored myelin changes in social brain regions and their association with changes in parent-rated social-emotional development in a cohort of 129 children (64 females, 0–36 months, 77 White). Results reveal a steep increase in myelination throughout the social brain in the first 3 years of life that is significantly associated with social-emotional development scores. These findings add knowledge to the emerging picture of social brain development by describing neural underpinnings of human social behavior. They can contribute to identifying age-/stage-appropriate early life factors in this developmental domain.  相似文献   

Heredity, reproduction, and perfectibility in revolutionary and Napoleonic France, 1789-1815     

Quinlan S 《Endeavour》2010,34(4):142-150

During the French Revolution, there appeared a striking and far-ranging medical literature on heredity, reproduction and biological 'perfectibility'. In some ways anticipating ideas associated with modern eugenics, these writings emerged from radical revolutionary projects for 'physical and moral regeneration' and incarnated deep-seated desires to transform French society and make a 'new man' in mind and body. But by breaking down boundaries between public and private life, doctors did more than just try to regulate intimate sexual behaviour. Instead, they proffered a more intimate vision of civic volunteerism, in which sexual hygiene and domestic practices allowed their patients to imagine new forms of society and gave them ways to attain these socio-political dreams. Moreover, they were responding to powerful new worries about heredity and sought to counsel their patients in the ways of family panning. By the end of revolutionary period, then, medical and lay thinkers had transformed the marriage bed and household into a specially controlled environment - a kind of affective laboratory - in which conscientious parents could make healthy children and raise them in the context of specific political and social values.  相似文献   

Using Sociocultural Theory to Understand the Relationship between Teacher Change and a Science-based Professional Education Program     

Catherine Milne  Kathryn Scantlebury  Tracey Otieno 《Cultural Studies of Science Education》2006,1(2):325-352

This paper focuses on a model of teacher change based on a study of a science discipline-based professional education program and on an understanding of teacher change in terms of an agency| structure dialectic. Professional education programs should expand teachers' capacity to act in a range of fields. Conducted over one year, this study used socio-cultural theory to examine the role of cultural schema and resources in the enactment of new pedagogical structures by two teachers who demonstrated widely variable responses to their experience of a professional chemistry education program. Hermeneutic and phenomenological methods of study supported the examination of teacher actions and narratives as sources of data. The analyses of these data sources resulted in greater understanding of the relationship between schema, resources and structure and the relationship between structure and teacher agency. Structures are dynamic and if a teacher uses a resource such as an inquiry-based instruction protocol without the attendant cultural schema such as the value of questioning then the structure that is implemented will be different from that the teacher experienced in the professional education program. This understanding supported an explanation of teacher change in terms of teacher agency that constituted our learning from the study and resulted in changes to aspects of the professional education program.  相似文献   

A review of primary and secondary influences on sport expertise     

Joseph Baker  Sean Horton 《High Ability Studies》2004,15(2):211-228

Sport scientists have examined numerous factors influencing the acquisition and manifestation of high levels of performance. These factors can be divided into variables having a primary influence on expertise and variables that have a secondary influence through their interaction with other variables. Primary influences on expertise include genetic, training, and psychological factors while secondary influences include socio‐cultural and contextual elements. This paper reviews the factors affecting the development of expert performance in sport and suggests directions for future research.  相似文献   

An ethic of care and educational practice     

Marcia McKenzie  Sean Blenkinsop 《Journal of Adventure Education & Outdoor Learning》2006,6(2):91-105

This article explicates the theoretical framework of an ethic of care and outlines recommendations for applying the framework to practice in adventure education, offering possibilities for re-imagining organizations as centrally concerned with compassion and care. Focusing on the work of Gilligan and Noddings, we suggest an understanding of an ethic of care that is contextual, ungendered, and inclusive of both the private and public spheres of life, and draw parallels between this ethic and the philosophies underlying Outward Bound specifically, and adventure education more generally. Finally, we outline possibilities for organizing educational curricula around centres of care for self, others, and the natural world, using Noddings' suggested curricular components of modeling, dialogue, practice, and confirmation.  相似文献   

Design,validation, and use of an evaluation instrument for monitoring systemic reform     

Kathryn Scantlebury  William Boone  Jane Butler Kahle  Barry J. Fraser 《科学教学研究杂志》2001,38(6):646-662

Over the past decade, state and national policymakers have promoted systemic reform as a way to achieve high‐quality science education for all students. However, few instruments are available to measure changes in key dimensions relevant to systemic reform such as teaching practices, student attitudes, or home and peer support. Furthermore, Rasch methods of analysis are needed to permit valid comparison of different cohorts of students during different years of a reform effort. This article describes the design, development, validation, and use of an instrument that measures student attitudes and several environment dimensions (standards‐based teaching, home support, and peer support) using a three‐step process that incorporated expert opinion, factor analysis, and item response theory. The instrument was validated with over 8,000 science and mathematics students, taught by more than 1,000 teachers in over 200 schools as part of a comprehensive assessment of the effectiveness of Ohio's systemic reform initiative. When the new four‐factor, 20‐item questionnaire was used to explore the relative influence of the class, home, and peer environment on student achievement and attitudes, findings were remarkably consistent across 3 years and different units and methods of analysis. All three environments accounted for unique variance in student attitudes, but only the environment of the class accounted for unique variance in student achievement. However, the class environment (standards‐based teaching practices) was the strongest independent predictor of both achievement and attitude, and appreciable amounts of the total variance in attitudes were common to the three environments. © 2001 John Wiley & Sons, Inc. J Res Sci Teach 38: 646–662, 2001  相似文献   

Barriers to professional education of NSW correctional officers: A case of distance learning     

Sean Otoole 《Distance Education》1999,20(2):295-312

This study aimed to determine whether NSW prison officers who attempt tertiary education are confronted with any unique cultural and contextual impediments during their studies and, if so, the effects of these impediments. Semi‐structured interviews were carried out, face‐to‐facc with 16 prison officers. The study also contrasts the experiences of commissioned and non‐commissioned correctional officers.

Three major thematic strands emerged from the data. The first clear theme involves the general barriers to learning encountered by prison officers engaged in tertiary studies. These barriers include time constraints and time management, family commitments and access to support mechanisms. The second major theme concerns the influence on the education process of the powerful occupational culture that has developed in the prison workplace. The third theme highlights the difficulties the occupation of prison officer presents for those individuals pursuing tertiary studies in the distance education mode. Geographically isolated work locations, a changing shift roster and high levels of job‐related stress all conspire against the success of prison officers as ‘distance learners’.  相似文献   

Accounting for Model Uncertainty in the Prediction of University Graduation Rates     

Cullen F. Goenner  Sean M. Snaith 《Research in higher education》2004,45(1):25-41

Empirical analysis requires researchers to choose which variables to use as controls in their models. Theory should dictate this choice, yet often in social science there are several theories that may suggest the inclusion or exclusion of certain variables as controls. The result of this is that researchers may use different variables in their models and come to disparate conclusions with respect to predicted effects and their statistical significance. In such cases one is uncertain of which particular set of regressors forms the model that represents the data. The approach used below accounts for uncertainty in variable selection by using Bayesian model averaging (BMA). Accounting for uncertainty, we demonstrate that BMA provides better out-of-sample prediction for university graduation rates than results based on alternative variable selection methods.  相似文献   

Assessment of semi-empirical mass transfer correlations for pervaporation treatment of wastewater contaminated with chlorinated hydrocarbons     

LIU Sean X. 《浙江大学学报(A卷英文版)》2006,7(11):1911-1916

INTRODUCTION Chlorinated hydrocarbons, a class of widely used dry-cleaning liquids, industrial organic solvents, and degreasers, increasingly find their way into drinking water sources, thus posing a very serious health and environmental problem (Love and Eliers, 1982). These organic solvents are known for their stability in the environment and cancer-causing po- tency and cannot be effectively and economically eliminated by current conventional treatment tech- nologies. One of the few av…  相似文献   

Editors’ Note on Transparency and Reporting Standards     

Sean F. Reardon  Elizabeth A. Stuart 《Journal of research on educational effectiveness》2019,12(1):1-4

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