Magnetic compass orientation in C57BL/6J mice   总被引：1，自引：0，他引：1  

Muheim R  Edgar NM  Sloan KA  Phillips JB 《Learning & behavior》2006,34(4):366-373

We report evidence for a robust magnetic compass response in C57BL/6J mice. Mice were trained to build their nests in one of four magnetic directions by creating a light gradient along the long axis of a rectangular cage and positioning a nest box at the opposite (dark) end. The mice were then tested overnight in a circular, visually symmetrical arena in one of four magnetic field alignments. The positions of the nests built in the test arena showed strong unimodal orientation in the magnetic direction coinciding with the dark end of the training cage.  相似文献   

Educational Truth Telling in a More Reflexive Modernity     

Peter Kelly  Christopher Hickey  Richard Tinning 《British Journal of Sociology of Education》2000,21(1):111-122

Postmodernist and poststructuralist discourses have, in the process of problematising what intellectual work looks like, opened up new spaces in which an examination of the processes of intellectual knowledge production can be located. Our intent in this article is to explore the problems and possibilities which emerge for particular forms of educational truth-telling under these conditions. While we examine these processes at a general level, our discussion is also grounded in an analysis of various attempts to tell particular truths about 'good' pedagogy in Physical Education (PE) in the transformed intellectual spaces of the contemporary university. There has been a long-running debate between various forms of expertise claiming to tell the truth about what constitutes good pedagogy in PE. This paper revisits this debate via a mobilisation of Hall's theorisation of articulation, and the reflexive modernisation thesis of Beck, Giddens and Lash. We argue that a more reflexive modernity profoundly problematises all forms of truth-telling in education.  相似文献   

Student's interaction with computer representations: Analysis of discourse in laboratory groups     

Gregory J. Kelly  Teresa Crawford 《科学教学研究杂志》1996,33(7):693-707

Language use in student laboratory groups makes apparent students' conceptions in science, their interpretation of the activity or task, and the negotiation of the roles of the members. This article reports on a methodological approach to analyze student discourse systematically. Four Grade 12 lab groups working on microcomputer-based laboratories (MBL) are the focus of the study. The MBL experiences were used to help students link oscillatory motion to graphical representations. Study of student discourse reveals the role the computer plays in the group context and the ways that this context is shaped by the computer. Developing a better understanding of the role of the computer in student conversations suggests ways to fruitfully construct contexts for learning physics. © 1996 John Wiley & Sons, Inc.  相似文献   

The Impact of Three-Dimensional Printed Anatomical Models on First-Year Student Engagement in a Block Mode Delivery     

Nicholas Tripodi  Kate Kelly  Maja Husaric  Rebecca Wospil  Michael Fleischmann  Susan Johnston  Katherine Harkin 《Anatomical sciences education》2020,13(6):769-777

Student engagement is known to have several positive effects on learning outcomes and can impact a student's university experience. High levels of engagement in content-heavy subjects can be difficult to attain. Due to a major institutional restructure, the anatomy prosection laboratory time per subject was dramatically reduced. In response, the authors set out to redesign their anatomy units with a focus on engaging the learning activities that would increase time-on-task both within and outside of the classroom. One of these curriculum changes was the implementation of a suite of anatomy learning activities centered on sets of three-dimensional printed upper limb skeleton models. A two-part mixed-method sequential exploratory design was used to evaluate these activities. Part one was a questionnaire that evaluated the students' engagement with and perceptions of the models. Part two involved focus groups interviews, which were an extension of the survey questions in part one. The results of the study indicated that the majority of students found the models to be an engaging resource that helped improve their study habits. As a result, students strongly felt that the use of the models inspired greater academic confidence and overall better performance in their assessments. Overall, the models were an effective way of increasing the engagement and deep learning, and reinforced previous findings from the medical education research. Future research should investigate the effects of these models on student's grades within osteopathy and other allied health courses.  相似文献   

Reviews     

John Hedley Brooke  Terry Dartnall  Celia Roberts  Sally Newcomb  Rafe Champion  Andrew Milne  Martin Kelly  Wendy Varney  Orin Thomas  Craig R. Stillwell  Leonard G. Wilson  Peter Anstey  Jay L. Garfield  Mark Colyvan  Mark Cortiula  John Merson  Nicolas Rasmussen  Nickolas Vakas  John Forge  Sunny Y. Auyang  Clair Scrine  Katharina Rowold 《Metascience》1999,8(3):444-514

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Calibration of two objective measures of physical activity for children   总被引：9，自引：7，他引：2  

Evenson KR  Catellier DJ  Gill K  Ondrak KS  McMurray RG 《Journal of sports sciences》2008,26(14):1557-1565

A calibration study was conducted to determine the threshold counts for two commonly used accelerometers, the ActiGraph and the Actical, to classify activities by intensity in children 5 to 8 years of age. Thirty-three children wore both accelerometers and a COSMED portable metabolic system during 15 min of rest and then performed up to nine different activities for 7 min each, on two separate days in the laboratory. Oxygen consumption was measured on a breath-by-breath basis, and accelerometer data were collected in 15-s epochs. Using receiver operating characteristic curve (ROC) analysis, cutpoints that maximised both sensitivity and specificity were determined for sedentary, moderate and vigorous activities. For both accelerometers, discrimination of sedentary behaviour was almost perfect, with the area under the ROC curve at or exceeding 0.98. For both the ActiGraph and Actical, the discrimination of moderate (0.85 and 0.86, respectively) and vigorous activity (0.83 and 0.86, respectively) was acceptable, but not as precise as for sedentary behaviour. This calibration study, using indirect calorimetry, suggests that the two accelerometers can be used to distinguish differing levels of physical activity intensity as well as inactivity among children 5 to 8 years of age.  相似文献   

Evangelical christianity in central Europe     

James Kelly 《British Journal of Religious Education》1935,2(3):137-143

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Freedom's Witness: The Civil War Correspondence of Henry McNeal Turner. Jean Lee Cole,Editor. Morgantown: West Virginia University Press, 2013.     

Lori Duin Kelly 《Journal of American culture (Malden, Mass. : 2003)》2014,37(1):87-88

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Predicting centre of mass horizontal speed in low to severe swimming intensities with linear and non-linear models     

Kelly de Jesus  Helon Vicente Hultmann Ayala  Leandro dos Santos Coelho  João Paulo Vilas-Boas  Ricardo Jorge Pinto Fernandes 《Journal of sports sciences》2019,37(13):1512-1520

We aimed to compare multilayer perceptron (MLP) neural networks, radial basis function neural networks (RBF) and linear models (LM) accuracy to predict the centre of mass (CM) horizontal speed at low-moderate, heavy and severe swimming intensities using physiological and biomechanical dataset. Ten trained male swimmers completed a 7 × 200 m front crawl protocol (0.05 m.s^?1 increments and 30 s intervals) to assess expiratory gases and blood lactate concentrations. Two surface and four underwater cameras recorded independent images subsequently processed focusing a three-dimensional reconstruction of two upper limb cycles at 25 and 175 m laps. Eight physiological and 13 biomechanical variables were inputted to predict CM horizontal speed. MLP, RBF and LM were implemented with the Levenberg-Marquardt algorithm (feed forward with a six-neuron hidden layer), orthogonal least squares algorithm and decomposition of matrices. MLP revealed higher prediction error than LM at low-moderate intensity (2.43 ± 1.44 and 1.67 ± 0.60%), MLP and RBF depicted lower mean absolute percentage errors than LM at heavy intensity (2.45 ± 1.61, 1.82 ± 0.92 and 3.72 ± 1.67%) and RBF neural networks registered lower errors than MLP and LM at severe intensity (2.78 ± 0.96, 3.89 ± 1.78 and 4.47 ± 2.36%). Artificial neural networks are suitable for speed model-fit at heavy and severe swimming intensities when considering physiological and biomechanical background.  相似文献   

Christianity and Humanitarianism in the Doukhobor Campaign, 1895–1902     

Luke Kelly 《Cultural and Social History》2016,13(3):339-355

This article examines the campaign undertaken by British Quakers in the 1890s to defend the Doukhobor sect of Russian Christians. The notion of humanitarian sympathy is too often applied as if it were a constant. Quakers are seen by many as exemplars of humanitarian action. By contrast this article argues that the concern that led to defend the Doukhobors came from very specific images of Christian suffering, and that the campaign to defend the sect was shaped by religious, not humanitarian, aims and methods and the particular history and repertoire of Quaker campaigning. It contributes to the history of humanitarianism by showing how humanitarian campaigning derives from the social and cultural history of various actors, and how humanitarian activity is coloured, at all levels, by its social and ideological positioning.  相似文献