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LB Lane 《Canadian Metallurgical Quarterly》1993,18(2):366-368
The scaphoid test described by Watson has generally been accepted as the definitive test for scaphoid instability and uses pressure against the scaphoid tubercle as the wrist moves from ulnar to radial deviation for the evaluation. This article describes a stress test done with the wrist in neutral position, which actively provokes scaphoid instability. Variations in stability can be used to grade scaphoid laxity. 相似文献
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Remote delivery of video services using mm-waves and optics 总被引:2,自引:0,他引:2
Advantages of a radio-based final drop for video delivery are outlined and spectral availability constraints that lead to the identification of the mm-wave region of the radio spectrum as the most appropriate for this application are discussed. The possibility of simultaneously supporting other broadband services, such as B-ISDN and traffic information systems (IVHS), enhance the attractiveness of a radio link. A large number of antenna units need to be served due to the limited propagation distances achievable at mm-wave frequencies, and therefore, a low-cost generation and delivery method has to be developed. In this paper, alternatives for the optical generation and distribution of mm-wave signals are reviewed and a new method is proposed that eases the bandwidth, and hence the cost, of the required optoelectronic components. An assessment of the relative merits of the methods is given 相似文献
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Presents an obituary of R. Fine, a psychologist-psychoanalyst who also excelled in chess. Fine worked for the government during World War II as a mathematician and consultant to the US Armed Forces, earned a PhD in clinical psychology in 1948, and was one of the founders of the National Psychological Association for Psychoanalysis. Fine also organized several centers for psychoanalytic training and was the founder of the American Psychological Association's Division 29, Psychotherapy. He wrote more than 100 articles and some 20 books on psychoanalysis, with an emphasis on love and work. (0 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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The purpose of this study was to examine predictors and consequences of spouses' involvement in each others' strategies for pursuing important personal goals called life tasks. Husbands and wives within 39 short- and long-term marriages described five life tasks and provided appraisals of whether each was shared with their spouse. Participants later completed 14 consecutive diary entries recording daily life task pursuit strategies, the extent of spouse involvement in each, and measures of positive and negative affect. Results indicated that interdependence in life task appraisals prospectively predicted greater spouse involvement, and greater spouse involvement was associated with more positive affect for that day. Life task appraisals may provide avenues for understanding couples' strategies for dealing with goals or stressors and how those strategies affect mood. (PsycINFO Database Record (c) 2011 APA, all rights reserved) 相似文献