Meaning making in a community of learners: Struggles and possibilities in an urban science class     

Maria Varelas  Barbara Luster  Stacy Wenzel 《Research in Science Education》1999,29(2):227-245

In this study, we embark on an exploration and analysis of a community of learners of science in a classroom of one of the authors (Barbara Luster)—a group of Year 8 African American girls and boys in an urban, inner-city school. This study is a collaborative action research project that examines closely the practice of teaching and learning science within a socio-cultural perspective that Barbara has espoused and brought to her classroom. We study the two dimensions of a community of learners—social-organisational, and intellectual-thematic—and how each evolved and influenced the other. As we explore these dimensions we pay particular attention to the gender of the students, looking for similarities and differences between boys and girls in the patterns that emerge. Our findings indicate that in Barbara's class the relative success of the learning community in terms of the social-organisational dimension was not accompanied by a relative success in the intellectual-thematic dimension. Barbara and her students, for the most part, succeeded in developing a community of people coming together to ask questions, offer their thinking, and respectfully sometimes build on each other's contributions and sometimes disagree with each other. However, Barbara and her students did not quite succeed in developing shared understandings, and we discuss the reasons for this.  相似文献   

Scite     

Stacy Brody 《Journal of the Medical Library Association》2021,109(4):707

Scite. Scite Inc., 334 Leonard St., Brooklyn, NY 11211; https://scite.ai/; tiered pricing model with free, basic ($7.99/month), premium ($19.99/month or $100/year), premium+ ($59.99/month), and enterprise plans.

Scite (https://scite.ai/) was founded by Josh Nicholson and Yuri Lazebnik and previously funded by the National Science Foundation (NSF) and National Institute on Drug Abuse (NIDA) [1, 2, 3]. The Scite database contains over 800 million citation statements [4] tagged by a machine learning algorithm as supporting, mentioning, or contrasting the findings of cited articles [5] and by their locations in the citing articles (introduction, results, methods, discussion, or other). Scite also provides a count of editorial notices for each article. Users can search the website and install plug-ins for browsers Chrome and Firefox and reference management tools such as Zotero. Additional tools include reports and dashboards, badges, and automated reference checks. Scite can be used by researchers to locate evidence and evaluate references; librarians to enhance research impact projects; publishers and editors to check reference lists of submissions [6, 7]; and journals, publishers, and databases to create context and showcase impact [4, 8, 9].  相似文献   

University research funding and publication performance—An international comparison     

Otto Auranen  Mika Nieminen 《Research Policy》2010,39(6):822-834

In current science policies, competition and output incentives are emphasized as a means of making university systems efficient and productive. By comparing eight countries, this article analyzes how funding environments of university research vary across countries and whether more competitive funding systems are more efficient in producing scientific publications. The article shows that there are significant differences in the competitiveness of funding systems, but no straightforward connection between financial incentives and the efficiency of university systems exists. Our results provoke questions about whether financial incentives boost publication productivity, and whether policy-makers should place greater emphasis on other factors relevant to high productivity.  相似文献   

An Innovative Course Featuring Action Research Integrated with Unifying Science Themes     

Charlotte A. Otto  Gail R. Luera  Susan A. Everett 《Journal of Science Teacher Education》2009,20(6):537-552

In this article, we describe an innovative capstone course for preservice K-8 teachers integrating action research and a unifying theme in science (AAAS in Science for all Americans. Oxford University Press, New York, 1989; NRC in National science education standards. National Academy Press, Washington, DC, 1996). The goals of the capstone course are to increase student knowledge of the unifying theme, improve written communication skills, and introduce students to educational research. We provide evidence that each of these goals is met. Student growth in theme knowledge is demonstrated through concept maps, questionnaires, and previously reported assessments. Improved writing ability is demonstrated using the spelling and grammar checking feature of Microsoft Word. The analysis of action research reports demonstrates that students are able to connect their action research project results to previous research.  相似文献   

The Metabolic Cost of Two Ranges of Arm Position Height with and without Hand Weights during Low Impact Aerobic Dance     

Maureen W. Carroll  Robert M. Otto  John Wygand 《Research quarterly for exercise and sport》2013,84(4):420-423

Abstract

To determine the energy cost of low impact aerobic dance while varying arm movement height and the use of hand weights, 10 adults volunteered to participate in four choreographed trials. All trials consisted of identical leg movements. Arm movements, however, were performed above shoulder level both with and without 0.9-kg hand weights and below shoulder level both with and without 0.9-kg hand weights. Open circuit spirometry was employed throughout the 10-min videotape guided trials, and heart rate was measured by telemetry. Neither the use of hand weights nor the change in arm position height significantly altered the energy cost of low impact aerobic dance. However, heart rate responses were significantly different. Caution should be observed by aerobics instructors and participants as to the use of heart rate as an indicator of intensity for low impact aerobic dance.  相似文献   

Ball launch conditions for skilled golfers using drivers of different lengths in an indoor testing facility     

E. S. Wallace  S. R. Otto  A. Nevill 《Journal of sports sciences》2013,31(7):731-737

Abstract

The displacement of the golf ball struck by a driving club is affected by several player characteristics and equipment parameters and their interrelationships. Some modelling and simulation studies have shown a relationship between shaft length and clubhead speed, supported by a few experimental studies. The aim of the present study was to examine the relationship between driver length and ball launch conditions in an indoor test facility using a ball launch monitor. Nine males considered to be skilled golfers participated in the study. Four driving clubs of total length 117, 119, 124, and 132 cm were assembled from commercially available components and were used to strike golf shots while initial ball velocity, backspin rate, and launch angles were measured. Statistical analysis identified a significant difference in initial launch speed due to club length, a significant difference between participants, but no difference between the trials for a given golfer. A positive trend was noted between backspin and launch angle for all four clubs, and significant inverse associations between initial launch speed and backspin rate and launch angle. However, the combined launch conditions associated with increasing length were not considered optimal, with uncontrolled swingweight and moment of inertia effects considered to be limiting factors.  相似文献   

Determination of the swing technique characteristics and performance outcome relationship in golf driving for low handicap female golfers     

Susan J. Brown  Alan M. Nevill  Stuart A. Monk  Steve R. Otto  W. Scott Selbie  Eric S. Wallace 《Journal of sports sciences》2013,31(14):1483-1491

Abstract

Previous studies on the kinematics of the golf swing have mainly focused on group analysis of male golfers of a wide ability range. In the present study, we investigated gross body kinematics using a novel method of analysis for golf research for a group of low handicap female golfers to provide an understanding of their swing mechanics in relation to performance. Data were collected for the drive swings of 16 golfers using a 12-camera three-dimensional motion capture system and a stereoscopic launch monitor. Analysis of covariance identified three covariates (increased pelvis–thorax differential at the top of the backswing, increased pelvis translation during the backswing, and a decrease in absolute backswing time) as determinants of the variance in clubhead speed (adjusted r ² = 0.965, P < 0.05). A significant correlation was found between left-hand grip strength and clubhead speed (r = 0.54, P < 0.05) and between handicap and clubhead speed (r = ?0.612, P < 0.05). Flexibility measures showed some correlation with clubhead speed; both sitting flexibility tests gave positive correlations (clockwise: r = 0.522, P < 0.05; counterclockwise: r = 0.711, P < 0.01). The results suggest that there is no common driver swing technique for optimal performance in low handicap female golfers, and therefore consideration should be given to individual swing characteristics in future studies.  相似文献   

‘What about the community impact?’: The Corpus Christi ‘hook’     

Emily S. Sparvero  Stacy Warner 《Sport Management Review》2013,16(4):524-532

This case study draws on theory in the following areas (1) public financing of sport facilities and in particular, the method of bonds and the impact on and involvement of local taxpayers, (2) community impact of minor league sport teams, and (3) leveraging of sport teams and facilities. This case is centered on Justin Drew, the president of the Corpus Christi Hooks, who must work with city officials to ensure that his minor league baseball team does not lose local support. The city of Corpus Christi helped finance the Hooks’ stadium a few years prior, and now with new members on City Council, tough economic times, and a history of folded professional sports teams in the city, Drew must be proactive in seeing that the Hooks do not meet a similar fate.The case presents a common challenge confronted by communities that host professional sport teams. In many cases, cities must provide some level of public financing for sport facilities in order to attract or retain a team. To gain public support, various promises are made about the potential for the team to transform the community. However, once public funding is secured and a team and facility is in place, it is unclear who has the responsibility for delivering on these promises. The situation presented in this case is not unique. In fact, similar claims are made about the impact of a sports team, regardless of the size of the host community or the type of team. This case gives students the opportunity to measure impact and also think critically about how to leverage a sports team to create value for the community. Although the characters in the case are fictitious the case draws upon actual facts and data from public records regarding Corpus Christi and their minor league baseball team, the Hooks; thus, providing students with a realistic dilemma to consider. The case is intended for use in Sport Finance/Economics and Sport Policy courses, but could also be adapted for other courses such as Sport Marketing, Sport Communication, Facilities and Event Management or even Research Methods.  相似文献   

Book reviews     

Langeveld  M. J.  Idenburg  Ph. J.  Quattrocchi  Luigi  Völcker  Otto  de Bousingen  R. Durand  Gillett  C. R. E.  Trébous  Madeleine  Bohnsack  Fritz  Kirchhoff  Hans  Lauwerys  J. A. L. 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》1956,2(3):345-359

International Review of Education -  相似文献   

Ladenthin/Rekus, Die Ganztagsschule     

Thomas Coelen  Hans-Uwe Otto 《Zeitschrift für Erziehungswissenschaft》2006,9(1):141-142

  相似文献