Getting Started with GIS: A LITA Guide     

Suzanne Duncan 《Journal of the Medical Library Association》2013,101(3):230-231

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Reviews-in-Brief: Related Subjects of Interest     

Darby Orcutt 《资料收集管理》2013,38(1):46-47

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New books     

J. Duncan Spaeth  Bertha Forbes Herring 《Quarterly Journal of Speech》2013,99(3):306-317

Adenoids and Tonsils. By Algernon Coolidge, M.D.: Harvard University Press, Cambridge, 1916. Cloth, price 50 cents.  相似文献   

ATTITUDES TOWARD EDUCATIONAL MEDIA: IMPLICATIONS FOR EDUCATIONAL GERONTOLOGY     

Marvin E. Duncan  Ronald K. Bass 《Educational gerontology》2013,39(1):77-91

This study was conducted to determine if there is or is not a difference in attitudes toward educational media between older adults and younger adults. Attitudinal information was gathered from the two groups utilizing an instrument entitled “Controversy in Academia” a 39‐item Likert‐type questionnaire. The questions from the instrument were divided into six groups, and six operational hypotheses were generated to effect testing. The results indicated that there were no basic differences between the attitudes toward educational media expressed by older adults and those expressed by younger adults.  相似文献   

Using decision support systems to facilitate the social process of knowledge management     

Gilberto?Montibeller  Duncan?ShawEmail author  Mark?Westcombe 《知识管理研究与实践》2006,4(2):125-137

The social processes involved in engaging small groups of 3–15 managers in their sharing, organising, acquiring, creating and using knowledge can be supported with software and facilitator assistance. This paper introduces three such systems that we have used as facilitators to support groups of managers in their social process of decision-making by managing knowledge during face-to-face meetings. The systems include Compendium, Group Explorer (with Decision Explorer) and V*I*S*A. We review these systems for group knowledge management where the aim is for better decision-making, and discuss the principles of deploying each in a group meeting.  相似文献   

Breakthrough thinking By Gerald Nadler & Shozo Hibino     

Gregory T. Duncan 《Performance Improvement》1992,31(5):42-43

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Analyzing and Selecting Instructional Strategies and Tactics     

David H. Jonassen  R. Scott Grabinger  N. Duncan C. Harris 《Performance Improvement Quarterly》1990,3(2):29-47

“Formulation of instructional strategy to match subject matter and learner requirements” is an integral part of most instructional design models (Andrews & Goodson, 1980, p.5). Yet the meaning and purpose of instructional strategies in these design models vary considerably. An instructional strategy in traditional design models usually refers to the selection of instructional delivery vehicles (e.g., lecture, demonstration, computer-assisted instruction) and support activities (e.g., practice exercises, tutoring) (cf. Tracey, Flynn, <& Legere, 1970). Contrast those conceptions with the many instructional strategies described in elaboration theory (Reigeluth & Stein, 1983), such as sub-sumptive sequencing, internally consistent orienting structures, synthesizers, summarizers, and cognitive strategy activators. What is obvious from these disparate conceptions is that instructional designers do not share a consistent definition of instructional strategies. Many of the activities that are referred to as instructional strategies are not in fact strategies, but rather are presentation vehicles. In this article, we first define instructional strategies and tactics in the context of an iterative design model. Instructional strategies are then distinguished from instructional tactics, which are the implementation of strategies. We then list the range of instructional strategies and tactics that implement them. Finally, we provide a decision tree for assisting designers to select appropriate instructional tactics.  相似文献   

The biomechanical characteristics of high-performance endurance running     

Stephen J. Preece  Christopher Bramah  Duncan Mason 《European Journal of Sport Science》2019,19(6):784-792

The biomechanical profile of high-level endurance runners may represent a useful model that could be used for developing training programmes designed to improve running style. This study, therefore, sought to compare the biomechanical characteristics of high-performance and recreational runners. Kinematic and kinetic measurements were taken during overground running from a cohort of 14 high-performance (8 male) and 14 recreational (8 male) runners, at four speeds ranging from 3.3 to 5.6?m?s^?1. Two-way ANOVA analysis was then used to explore group and speed effects and principal component analysis used to explore the interdependence of the tested variables. The data showed the high-performance runners to have a gait style characterised by an increased vertical velocity of the centre of mass and a flight time that was 11% longer than the recreational group. The high-performance group were also observed to adopt a forefoot strike pattern, to contact the ground with their foot closer to their body and to have a larger ankle moment. Importantly, although observed group differences were mostly independent of speed, the tested variables showed a high degree of interdependence suggesting an underlying unitary phenomenon. This is the first study to compare high-performance and recreational runners across a full range of kinematic and kinetic variables. The results suggest that high-performance runners maintain stride length with a prolonged aerial phase, rather than by landing with a more extended knee. These findings motivate future intervention studies that should investigate whether recreational runners could benefit from instruction to decrease shank inclination at foot contact.  相似文献   

Changes in kinematics and arm–leg coordination during a 100-m breaststroke swim     

Samuel W. Oxford  Rob S. James  Michael J. Price  Carl J. Payton  Michael J. Duncan 《Journal of sports sciences》2017,35(16):1658-1665

The purpose of this study was to compare arm–leg coordination and kinematics during 100 m breaststroke in 26 (8 female; 18 male) specialist breaststroke swimmers. Laps were recorded using three 50-Hz underwater cameras. Heart rate and blood lactate were measured pre- and post-swim. Arm–leg coordination was defined using coordination phases describing continuity between recovery and propulsive phases of upper and lower limbs: coordination phase 1 (time between end of leg kick and start of the arm pull phases); and coordination phase 2 (time between end of arm pull and start of leg kick phases). Duration of stroke phases, coordination phases, swim velocity, stroke length (SL), stroke rate (SR) and stroke index (SI) were analysed during the last three strokes of each lap that were unaffected by turning or finishing. Significant changes in velocity, SI and SL (P < 0.05) were found between laps. Both sexes showed significant increase (P < 0.05) in heart rate and blood lactate pre- to post-swim. Males had significantly (P < 0.01) faster swim velocities resulting from longer SLs (P = 0.016) with no difference in SR (P = 0.064). Sex differences in kinematic parameters can be explained by anthropometric differences providing males with increased propelling efficiency.  相似文献   

The influence of cycling intensity upon cognitive response during inferred practice and competition conditions     

Michael J. Duncan  Neil D. Clarke  Martin Cox  Mike Smith 《Journal of sports sciences》2017,35(19):1865-1871

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