Authoring systems reassessed     

Craig Locatis  Eldon Ullmer  Victor Carr  Richard Banvard  Quang Le  Raulie Lo  Matthew Williamson 《Educational technology research and development : ETR & D》1992,40(2):77-82

A study of authoring system technology was done to update a previous study done in 1985. While the earlier study focused on software selection methods, the current one emphasizes trends in authoring tool characteristics, vendor approaches to the market-place, and evaluation methods. It also raises questions about some of the often tacit assumptions underlying the technology's development and use.  相似文献   

User-design in the creation of human learning systems     

Alison A. Carr 《Educational technology research and development : ETR & D》1997,45(3):5-22

Systems theory and thinking are fundamental for the effective application of human performance technologies and instructional design to organizational and educational change efforts. One of the cornerstones of systemic change is the involvement of all stakeholders in what is termed participatory- or user-design. While the value of including the users in the creation of large systems of education and human performance (such as training, computer systems, and curriculum) is apparent, the reality of such inclusive efforts has a history of failure. Meeting the challenge of shifting power dynamics, empowering stakeholders and educating for design must, at some level, fall to the leaders of any dynamic organization. This paper describes systemic change as a context for user-design and defines user-design in that context. Approaches to user-design are explored, including ethnographic field methods, cooperative design, and action research-based user-design as applied to the creation and implementation of new technologies. A proposed research plan for the advancement of user-design practice concludes the work.  相似文献   

Virtue and Character in Higher Education     

David Carr 《British Journal of Educational Studies》2017,65(1):109-124

Despite much recent concern with the possibilities of moral character education in elementary schooling and professional training, the university and higher educational prospects of such education have only lately received much attention. This paper begins by considering – and largely endorsing – the general case for character education in contexts of pre-adult schooling and adult professional and vocational training. However, it proceeds to argue that the case for intervention in character formation in some educational contexts is not generally applicable to university and higher education. Key points are that there can be no clear normative warrant for such intervention in the case of learners who are: (i) beyond the age of majority and (ii) voluntarily engaged in study wherein significant professional or public implications of personal character development are not a pressing concern. In short, while good moral character is clearly of general human importance, its deliberate or explicit promotion may not be equally warranted in all educational contexts.  相似文献   

Research report: Gender differences in primary teachers’ self-estimates of their competence to teach national curriculum science     

D. S. G. Carter  C. Carré 《The Australian Educational Researcher》1991,18(2):31-41

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Pain-elicited aggression in the squirrel monkey: An implicit avoidance contingency     

Philip J. Dunham  Adam Carr 《Learning & behavior》1976,4(1):89-95

Squirrel monkeys were given either forward pairings of a bite-tube CS and shock US or backward pairings of these stimuli. Backward pairings produced stronger control of biting by the bite tube alone than did forward pairings. In a second experiment, subjects received backward pairings of US and CS with either a fixed ITI or a random ITI. Conditioned biting was obtained only when trials were presented with a fixed ITI. The magnitude of unconditioned biting was also significantly greater with the fixed ITI. It was argued that these results demonstrate that conditioning in this situation depends upon the degree to which biting predicts a relatively long shock-free period. When trials occur randomly in time, biting predicts no definite shock-free period; hence, it is not learned.  相似文献   

Rooty-toot-toot,here comes the substitute     

Rey A. Carr  Kathleen E. Ryan 《Interchange》1974,5(4):49-52

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The effect of normal load force and roughness on the dynamic traction developed at the shoe–surface interface in tennis     

James Clarke  Sharon J. Dixon  Loic Damm  Matt J. Carré 《Sports Engineering》2013,16(3):165-171

During tennis-specific movements, such as accelerating and side stepping, the dynamic traction provided by the shoe–surface combination plays an important role in the injury risk and performance of the player. Acrylic hard court tennis surfaces have been reported to have increased injury occurrence, partly caused by increased traction that developed at the shoe–surface interface. Often mechanical test methods used for the testing and categorisation of playing surfaces do not tend to simulate loads occurring during participation on the surface, and thus are unlikely to predict the human response to the surface. A traction testing device, discussed in this paper, has been used to mechanically measure the dynamic traction force between the shoe and the surface under a range of normal loading conditions that are relevant to real-life play. Acrylic hard court tennis surfaces generally have a rough surface topography, due to their sand and acrylic paint mixed top coating. Surface micro-roughness will influence the friction mechanisms present during viscoelastic contacts, as found in footwear–surface interactions. This paper aims to further understand the influence micro-roughness and normal force has on the dynamic traction that develops at the shoe–surface interface on acrylic hard court tennis surfaces. The micro-roughness and traction of a controlled set of acrylic hard court tennis surfaces have been measured. The relationships between micro-roughness, normal force, and traction force are discussed.  相似文献   

The effects of surface traction characteristics on frictional demand and kinematics in tennis     

LoI¨c Damm  Daniel Low  Andrea Richardson  James Clarke  Matt Carré  Sharon Dixon 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(4):389-402

The interaction between footwear and surfaces influences the forces experienced by tennis players. The purpose of this study was to investigate traction demand and kinematic adaptation during tennis-specific movements with changes in traction characteristics of surfaces. We hypothesised that players would increase the utilised coefficient of friction (horizontal to vertical ground reaction force ratio) when the shoe surface combination had a high coefficient of friction and flex their knee after contact to facilitate braking. Eight participants performed two separate movements, side jump out of stance and running forehand. Ground reaction force was measured and three-dimensional kinematic data were recorded. Clay surface and cushioned acrylic hard court (low vs. high shoe–surface friction) were used. The peak utilised coefficient of friction was greater on clay than the hard court. The knee was less flexed at impact on clay ( ? 5.6 ± 10.2°) and at peak flexion ( ? 13.1 ± 12.0°) during the running forehand. Our results indicate that tennis players adapt the level of utilised friction according to the characteristics of the surface, and this adaptation favours sliding on the low friction surface. Less knee flexion facilitates sliding on clay, whereas greater knee flexion contributes to braking on the hard court.  相似文献   

Library and informatics skills competencies statements from major health professional associations     

Eldredge JD  Morley SK  Hendrix IC  Carr RD  Bengtson J 《Medical reference services quarterly》2012,31(1):34-44

Every major health profession now provides competency statements for preparing new members for their respective professions. These competency statements normally include expectations for training health professions students in library/informatics skills. For purposes of this article, searches were conducted using various sources to produce a comprehensive 32-page Compendium that inventories library/informatics-related competency statements. This compendium should aid readers in integrating their library/informatics skills training into various health professions education curricula.  相似文献   

Autonomic Regulation on the Stroop Predicts Reading Achievement in School Age Children     

Derek R. Becker  Sybil Carrère  Chelsea Siler  Stephanie Jones  Bonnie Bowie  Cheryl Cooke 《Mind, Brain, and Education》2012,6(1):10-18

In this study we examined high frequency heart rate variability (HF‐HRV, a parasympathetic index) both at rest and during challenge, to assess if variations in cardiovascular activity measured during a Stroop task could be used to predict reading achievement in typically developing children. Reading achievement was examined using the Peabody Individual Achievement Test–Revised. Results showed that greater HF‐HRV suppression during both the Stroop word and Stroop word–color conflict tasks was associated with better reading achievement. Higher basal levels of HF‐HRV did not predict better reading scores. These results are among the first to show a link between HF‐HRV and reading achievement in a normative school age population, and offer new insight into the association between cognitive activity and autonomic regulation of the heart.  相似文献