Research-informed practice improvements: exploring linkages between school district use of research evidence and educational outcomes over time     

Carolyn J. Heinrich  Annalee Good 《School Effectiveness & School Improvement》2018,29(3):418-445

The field of education is progressively building capacity and tools for producing rigorous research evidence to use in improving educational practice and outcomes. The knowledge base is lacking, however, in explicating the dynamics of research-based decision making and exploring connections between the work of research–practice partnerships and changes in educational outcomes. Drawing on experiences and data collected over a decade in mixed-methods research, we describe a case example of how research evidence developed in a multidistrict collaboration was used by one district partner to inform ongoing improvements in publicly funded tutoring programs. We employ both qualitative and quantitative analysis in exploring probable linkages between research-based changes made by the district partner and academic outcomes over time.  相似文献   

The injurious action of alkalies on cotton fibre     

Messrs Heinrich Caro  William Dancer 《Journal of The Franklin Institute》1865,79(6):402-404

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A deterministic model based on evidence for the associations between kinematic variables and sprint kayak performance     

Lisa K. McDonnell  Patria A. Hume  Volker Nolte 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(3):205-220

The aim of this narrative review was to propose a deterministic model based on a review of previous research documenting the evidence for the associations between average kayak velocity and kinematic variables in sprint kayaking. Literature was reviewed after searching electronic databases using key words ‘kayak,’ ‘biomechanics,’ ‘velocity,’ ‘kinematics,’ and ‘performance.’ Our kinematic deterministic model for sprint kayaking performance shows that the average kayak velocity is determined by kayak stroke displacement and stroke time. Stroke time had the strongest correlation with 200-m race time (r = 0.86, p < 0.001), and stroke rate (inversely proportional to stroke time) was strongly correlated with average horizontal velocity over two consecutive strokes at race pace (r = ? 0.83, p < 0.05). Increased stroke rate via decreased absolute water phase time and increased relative water phase time were indicative of more elite performance. There was no significant relationship between stroke displacement and velocity; however, a large decrease in stroke displacement may be detrimental to performance. Individual characteristics may be responsible for a paddlers’ ability to achieve and sustain a given stroke rate. Coaches should theoretically focus interventions on increasing stroke rate while maintaining stroke displacement; however this hypothesis should be confirmed with prospective studies.  相似文献   

Three dimensional musculoskeletal modelling of the seated biceps curl resistance training exercise     

Nolte K  Krüger PE  Els PS 《Sports biomechanics / International Society of Biomechanics in Sports》2011,10(2):146-160

The aim of this study was to evaluate the benefits and limitations of using three dimensional (3D) musculoskeletal modelling (LifeModeler) in assessing the safety and efficacy of exercising on a seated biceps curl resistance training machine. Three anthropometric cases were studied, representing a 5th percentile female, 50th percentile and 95th percentile male. Results indicated that the LifeModeler default model was not adequate to solve the forward dynamics simulations. Therefore adjustments had to be made to the default model to successfully complete the forward dynamics simulations. The software was able to sufficiently highlight the shortcomings of the biceps curl machine's engineered adjustability in relation to the anthropometric dimensions of the studied cases, as the 5th percentile female could not be accommodated suitably on the machine. High lumbar spine anterior/posterior shear forces for all anthropometric cases and maximum muscle tensions for the female and 50th percentile male indicate that the seated biceps curl exercise may pose risks for injuries. To conclude, it appears that 3D musculoskeletal modelling can be used to evaluate resistance training equipment such as the seated biceps curl machine. However the limitations as indicated by this study must be taken into consideration, especially when using the default LifeModeler model.  相似文献   

Der Wiederaufbau des österreichischen Schulwesens nach dem Zweiten Weltkrieg     

Heinrich Peter 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1956,2(1):52-65

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Robuste Indizes für Projection Pursuit     

Tobias Rohatsch  Gerhard P?ppel  Heinrich Werner 《Informatik - Forschung und Entwicklung》2002,4(1):53-59

Die moderne und hoch komplexe Fertigung, z.B. in der Halbleiterindustrie, erfordert für die dabei anfallenden Messdaten der Anlagen- bzw. Prozessparameter multivariate Analysemethoden. Eine dieser m?glichen Analysemethoden ist Projection Pursuit (PP). Dieses Verfahren ist durch geschickte Wahl des so genannten Projektionsindex in der Lage, verschiedenste Datencharakteristika zu detektieren und diese auf anschauliche Weise zu visualisieren. Bei den Projektionsindizes handelt es sich um Funktionen, die eine Projektion auf unterschiedliche Merkmale hin bewerten und dabei jeder Projektion einen Funktionswert zuweisen. Dieser Funktionswert spiegelt die Aussagekraft der Projektion (in Abh?ngigkeit vom verwendeten Index) wider. Die Auswahl bzw. der Aufbau dieser Indizes ist hierbei von entscheidender Bedeutung. Alle hier vorgestellten Indizes zeichnen sich vor allem durch ihren robusten Charakter gegenüber durch Ausrei?er kontaminierte Daten, wie sie in realen Datenszenarien vorkommen, aus. Die durch Anwendung dieser Indizes gewonnenen Einblicke in die komplexe Struktur der Daten erm?glichen es, hochdimensionale Parameterabweichungen und komplexe Zusammenh?nge innerhalb der Daten zu finden.  相似文献   

Teaching groups as midlevel sociocultural contexts for developing teaching and learning: a case study and comparison to microcultures     

Eva Heinrich 《高等教育研究与发展》2017,36(4):702-715

Using a case-study approach, the structures, interactions and cultures in four teaching groups at a New Zealand university are explored. The aim of the research is to better understand the potential of teaching groups for assisting academic development. To contextualize this work, the case-study outcomes are compared to research on microcultures. Similarities between strong teaching groups and strong microcultures are found, pointing to the potential of drawing on findings from microculture research. In particular, the use of social commons as a theoretical framework seems indicated, presenting teaching quality as a group and not just individual concern. Differences between the contexts stem from the sole focus of teaching groups on teaching compared to the combined research and teaching mandate of microcultures. As research often dominates teaching, the suggestion is made that teaching groups provide more suitable contexts for addressing teaching issues. The research recommends that organizational units in higher education should identify and analyse teaching groups and build on those groups in addressing teaching quality.  相似文献   

诺贝尔奖得主寄语中国未来的科学发展   总被引：1，自引：0，他引：1       下载免费PDF全文

Sidney Altman  丁肇中  野依良治  Heinrich Rohrer  Michael Spence  Alan G.Mac Diarmid 《中国科学院院刊》2006,21(4):274-275

5月25—26日,在纪念国家自然科学基金委员会成立20周年的“21世纪科学前沿与中国的机遇”高层论坛上,6位诺贝尔奖得主做了精彩报告。在对中国科学的未来发展寄予殷切期望的同时,他们也对中国的科技政策提出了具有启发性的建议。现摘编如下:诺贝尔化学奖得主、美国耶鲁大学教授S  相似文献   

从德国法学的角度研究国际体育法     

熊燕  周子伦 《考试周刊》2008,(45)

国际体育法具有自治规范和国家制定的法规共存的特性,通常被称为体育法的双重性.私人体育组织的自治规范形成了体育法的第一大支柱.国家制定的用以解决体育问题的法规被称为体育法的第二大支柱.在现代竞技体育中,国家的界限逐渐消失,随之出现越来越多的国际体育纠纷.体育纠纷是否由国家法院来裁决、体育纠纷应该使用哪个程序法、体育纠纷应该使用哪些实际法律法规、欧洲法在德国体育法中的使用成为德国体育法学界普遍关注的问题.  相似文献   

The passionate scholar: A mid-life,woman doctoral student's quest for voice     

Kathleen T. Heinrich 《International journal of qualitative studies in education》2013,26(1):63-83

The feminist, esthetic, cooperative inquiry described in this article is the first longitudinal study to trace the development of scholarly identity in a group of mid-life women participants during their doctoral years. This 18-month project involved an experiential workshop and four reunions shaped around the metaphor of the hero's journey grounded in feminist pedagogy and expressive methods. Entering doctoral programs with voices made tenuous by life events characteristic of mid-life, participants' scholarly development was intimately linked with their recovery of personal voice and the development of an authentic sense of self. Expressive methods as well as group support were integral to participants developing a scholarly identity that manifested itself in passionate dissertation scholarship. This suggests that participants' scholarly identity development transcended the intellectual and involved psychological, emotional, and spiritual dimensions. Based on these findings, doctoral educators are encouraged to create experiences that offer mid-life women opportunities to reflect on their doctoral journeys within a community of scholarly caring through the creative mediums of metaphor; esthetic, expressive representation; and dialogue.  相似文献