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1.
Posttraumatic stress in children and adolescents exposed to family violence: I. Overview and issues.
Exposure to child physical abuse and parents' domestic violence can subject youth to pervasive traumatic stress and can lead to posttraumatic stress disorder (PTSD). This article presents evolving conceptualizations in the burgeoning field of trauma related to family violence exposure and describes how the often repeating and ongoing nature of family violence exposure can complicate a PTSD diagnosis. In addition, recent literature indicates that children exposed to family violence may experience problems in multiple domains of functioning and may meet criteria for multiple disorders in addition to PTSD. Considerations salient to the recognition of traumatic stress in this population and that inform assessment and treatment planning are presented. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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HHD型核子秤电离室已成功地使用于HCS型核子秤.对它的各种物理性能指标进行了检测,各项性能指标都达到了设计要求。 相似文献
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H.Honda T.Fukuda Institute of Advanced Material Study Kyushyu University Kasuga Fukuoka Japan 《热科学学报(英文版)》1992,1(2):123-129
A theoretical study has been made to optimize the fin geometry of a horizontal finned tube which is to be usedfor condensers that handle the vapor load of a liquid phase change cooling module.Systematic numerical calcu-lations of the vapor to coolant heat transfer have been performed for parametric values of fin height,fin spacing,vertical bundle depth and tubeside heat transfer coefficient.Three dielectric fluids (R-113,FC-72,and FC-87)at atmospheric pressure were selected as the working fluids.For a single tube with optimized fin geometry,theaverage heat flux increased in the order of FC-87,R-113 and FC-72.Both the optimum fin height and optimumfin spacing increased with increasing vertical bundle depth. 相似文献
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Capital cost correlations are given for oil-water separators, equalization basins, primary clarifiers, clarifiers and clarifier mechanisms, reverse osmosis unit, ultrafiltration units, gravity filters and miroscreens. Data are included for raw sewage, intermediate and recirculation pumping stations and for preliminary treatment (or bar screens, grit removal, overflow and bypass chamber and Parshall flume), for grit removal, comminution and gas stripping. The correlations are accurate to ± 30%, expressed in Canadian dollars and adjusted to a Marshall and Swift value of 1000. Details as to what components are included in the cost are given. Data are given for the labour and material costs to create a working process module. For inflation indices, a critique of the Engineering News Record, EPA small city, Marshall and Swift, Chemical Engineering and Southam inflation indices suggested that the Marshall and Swift index is most appropriate for the construction and process equipment studied here. Concerning the currency exchange, for the equipment and processes in this study, equipment costs the same whether expressed directly in US or Canadian dollars. To put the current data into perspective, several hundred sources of cost data were analyzed. The major correlations are compared, on a consistent basis, with current data. 相似文献
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本文在制备AgBr八面体乳剂初液中,加入一系列不同量的1,7,10,16-四氧-4,13-二硫代杂环十八烷(2S-18-C-6),结果由于(2S-18-C-6)与银离子产生了络合,降低了乳剂成核的过饱和度,所得乳剂的颗粒大小与加入2S-18-C-6的量成正比。由于所得乳剂颗粒大小分布产生了变化,而使乳剂的光化学性质以及介电损耗也产生了规律性的变化。同时还发现,在乳剂成熟过程中,加入含杂质原子不同的冠醚化合物1,4,7,10,13,16-六氧环十八烷(18-C-6),1,7,10,16-四氧-4,13-二氮代杂环十八烷(2N-18-C-6),N-对甲苯磺酰基-7-氮杂-1,4,10,13-四氧硫杂环十六烷(NTsTTH)对晶体的物理成熟作用有很大差异,2S-18-C-6是很好的物理成熟剂,2N-18-C-6、NTsTTH是AgBr的溶剂,18-C-6的成熟作用很弱,说明冠醚化合物对AgBr的溶解成熟作用与其环上所含杂原子有关。 相似文献
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R. M. Tubaileh M. M. Graciani Constante M. Léon Camacho A. López López E. Graciani Constante 《Journal of the American Oil Chemists' Society》2002,79(10):971-976
Changes in the content of aliphatic waxes during industrial deodorization and/or physical refining of bleached olive oil were
studied in an experimental discontinuous pilot plant of 250 kg deodorizer using nitrogen as stripping gas in place of steam.
The kinetic constants for the decomposition of waxes during the deodorization process were determined. The reaction orders
studied are zero (or can be considered zero) within the working interval. The values of rate constants, activation energy,
frequency factor, increment of activation Gibbs free energy, activation enthalpy, and activation entropy are established. 相似文献
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在现代社会中,平板电脑、智能手机在人们日常生活的方方面面发挥着巨大的作用。通过分析电子产品在儿童和青少年的视力、身体发育、社交能力和学习能力等方面的负面影响,提出了加强亲子陪伴、合理引导控制等应对措施。 相似文献