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No authorship indicated 《Canadian Metallurgical Quarterly》1994,49(4):271
The Early Career Awards, given for the first time in 1974, recognize the large number of excellent young psychologists. Recipients of this award may not have held a doctoral degree for more than nine years. For purposes of this award, psychology has been divided into 10 areas: animal learning and behavior, comparative; developmental; health; cognition/human learning; psychopathology; behavioral and cognitive neuroscience; perception/motor performance; social; applied research; and individual differences. Five areas are considered each year, with areas rotated in two-year cycles. The citation, biography, and selected bibliography of Robert M. Nosofsky, one of the 1993 recipients of the Award for Distinguished Scientific Early Career Contributions to Psychology (Cognition/Human Learning), are presented here. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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During the previous century, the wetland area in the lower Missouri River alluvial valley was reduced by 39% because of river channelization and bank stabilization projects. The Great Flood of 1993 reversed the trend of wetland loss by creating 466 new wetlands in the alluvial valley between Kansas City and St. Louis, Missouri. We estimated amphibian occupancy, detection probability and number of species exhibiting evidence of reproduction in eight flood‐created and 16 pre‐flood existing wetlands from 1996 through 1998. We also evaluated whether hydroperiod (the number of days any water was present in a wetland from 20 February through 31 August) and distance to river predicted those values. Detection probabilities for adult amphibian species were relatively constant across years and ranged from 0.013 [Great Plains toad (Anaxyrus cognatus)] to 0.280 [Woodhouse's toad (Anaxyrus woodhousii woodhousii)]. Occupancy of adult amphibians differed across years and was not correlated with habitat features. Estimated occupancy probabilities for amphibian species ranged from 0.126 [Plains spadefoot (Spea bombifrons)] to 0.896 [boreal chorus frog (Pseudacris maculata)]. Almost double the number of amphibian species showed evidence of reproduction in existing wetlands (wetlands created before the Great Flood of 1993) when compared with that in flood‐created wetlands. Similarly, temporary wetlands had nearly double the number of amphibian species showing evidence of reproduction when compared with permanent wetlands. Finally, the highest number of species showed evidence of reproduction in wetlands with spring–summer hydroperiods between 135 and 140 days. All these relationships suggest that the invasion and persistence of predators in wetlands negatively influence amphibian reproduction. If the Missouri River is allowed to reconnect with the alluvial valley, more predators may be introduced into wetlands, leading to reduced amphibian occupancy and reproduction. However, this connection will not likely occur over the entire alluvial valley and, therefore, should not adversely impact amphibians that find refuge in higher‐elevation, non‐connected regions of the alluvial valley. Copyright © 2011 John Wiley & Sons, Ltd. 相似文献
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1993年汛期黄河下游河势遥感调查 总被引:2,自引:0,他引:2
利用MERIDIAN遥感图象处理系统,通过TM图象最佳波段组合、线性拉伸放大、密度分割等处理手段,首次在黄河上进行了卫星遥感河势调查,其优势在于:(1)可以弥补目估河势的不足;(2)能够对河势流路、主流线位置、洪漫滩范围及水边线、生产堤、主要滩区洪水进出口门位置、进水和水围村庄等准确定位;(3)可以详细计算各类滩区面积与分布密度。 相似文献
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为了给科技论文著者和编辑在选择国家标准GB 3102.11—1993《物理科学和技术中使用的数学符号》中偏导数的诸多符号与读法时提供参考,针对标准中关于偏导数符号与读法的规定,根据数学逻辑与数理统计,对偏导数各种符号与读法的适用性进行分析,并提出几点商榷。分析表明:在偏导数的5种符号、、、fx、中,首选为宜,其次是fx;而在“偏导数”、“偏微商”这2种读法中,首选“偏导数”为宜;研究结果从高等数学专业的角度指出了标准中偏导数诸多符号与读法的适用性,为科技论文撰写与编辑中偏导数诸多符号与读法的选择提供了依据。 相似文献
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No authorship indicated 《Canadian Metallurgical Quarterly》1994,49(4):279b
The Board for the Advancement of Psychology in the Public Interest presents two awards annually to persons who, in the estimation of the Committee on Psychology in the Public Interest Awards, have advanced psychology as a science and/or profession by a single extraordinary contribution or a lifetime of outstanding contributions in the public interest. One award is presented to a senior psychologist, and the other recognizes a psychologist who has made a significant contribution to the public interest less than 15 years after the receipt of his or her degree. This article presents the citation, biography, and selected bibliography for one of the 1993 recipients of this award, Laura C. Leviton. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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