大学生就业压力问卷的编制

在大学生就业压力理论维度构建的基础上,以广州地区1048名大学生为被试,编制了大学生就业压力问卷。问卷由六个维度构成,问卷的理论维度结构合理,具有良好的信度,总问卷对大学生心理健康水平具有良好的预测作用,可以作为评估大学生就业压力水平的有效测量工具。     

构建和谐校园进程中大学生就业压力问题研究

在构建和谐社会的进程中,校园和谐是一项重要内容,而日益严重的大学生就业压力问题,已经成为阻碍和谐校园建设进程的重要因素,文章以分析大学生就业压力源为基础,从社会、学校以及大学生自身因素几个方面积极地探索了解决这一问题的途径以促进和谐校园的建设。     

压裂水平井产能影响因素的实验研究

压裂缝改变了水平井周围的渗流场，是影响压裂水平井产能的主要因素，压裂前需研究裂缝参数对压裂水平井产能的影响趋势。利用电模拟实验研究了水平井筒与压裂缝成不同夹角的压裂水平井的等压线分布特点及压裂缝各参数对压裂水平井产能的影响。结果表明：夹角改变了压裂水平井等压线的形状，等压线因夹角而发生了扭转，随夹角增大相同压力的等压线所控制的泄流面积增加，且产能随夹角α的增大而增大，与sinα成明显的线性关系；在具体的油藏地质条件下，存在裂缝夹角、裂缝数、裂缝长度、水平井筒长度及裂缝间距的最优匹配关系。电模拟实验结果为压裂水平井的施工设计和其产能预测提供了理论依据。     

脉动燃烧器及其尾管传热分析

开发研制了Helmholtz型膜片阀式脉动燃烧器及其实验数据采集系统，脉动燃烧器的功率为25KW，以液化石油气为燃料，其工作频率从60-105Hz可调，研究了脉动燃烧器燃烧室内压力及其尾管传热特性，结果表明，脉动流传热系数是非脉动流传热系数的2.5-3.2倍。     

梁柱式支架法在客运专线高墩连续梁施工中的应用

结合广深港客运专线铁路水田特大桥(40+64+40)m高墩连续梁现浇施工,介绍跨路高墩梁柱式支架的设计与施工。该桥梁主墩高31 m,跨越繁忙的石观公路及河流,受地形条件限制,在跨路、跨河处支架采用19.46 m和19.23 m跨径的加强型贝雷梁式支架,贝雷支架上部搭设碗扣支架以满足箱梁变截面要求,下部结构采用钢管支墩、钢筋砼扩大基础,距离河岸边仅3.5 m的扩大基础采用河床堆载反压的方式增强地基承载力,顺利完成了现浇桥梁浇筑,为解决跨路、跨河支架搭设难题积累了经验。     

多裂缝系统垂直裂缝井不稳定渗流分析

高能气体压裂和脉冲压裂能在近井地带形成多条径向裂缝，对此建立了均质油藏和双重介质油藏多裂缝系统垂直裂缝井的物理模型。利用叠加原理，在单裂缝系统压力分布公式的基础上，得到了多裂缝系统垂直裂缝井不稳定渗流压力响应的计算方法，绘制并分析了油藏参数、裂缝条数和裂缝分布影响下的压力动态典型曲线。结果表明：流体在多裂缝系统的流动特征与裂缝条数和裂缝分布有关，当裂缝条数较少并且夹角较大时，压力动态曲线主要分为3个流动阶段：线性流段、椭圆流段和拟径向流段；当裂缝较多或者夹角较小时，由于裂缝之间相互影响，线性流段和椭圆流段之间的过渡段变长，线性流段可能消失；裂缝条数越多，供液能力越强，相同时间下，井底压力下降得越少。     

四川高校教职工心理压力现状的调查研究

目的:了解四川省高校教职工心理压力现状。调查对象:四川7所高校682名教职工的心理压力情况。调查结果:1)感受到中重度心理压力的教职工占75.9%,感到压力对自己目前的生活产生了中重度影响的教职工占63.7%,仅有35.3%的教职工应对压力的方式是基本有效的;2)教职工的压力源主要来自工作方面,压力源对30~45岁的中等资历教职工群体,离婚、再婚等特殊困难教职工群体的影响程度较大;3)部分教职工的压力认知还存在偏差,多数教职工的压力应对方式还不够完善。学校可通过针对不同群体的心理压力实际情况相应改善政策、普及心理压力知识、构建组织文化等途径来缓解教职工的心理压力。     

A Test of the Family Stress Model Using a Remarriage Sample

ABSTRACT

The family stress model delineates the connections between economic hardship, economic pressure, marital interactions, marital quality, and, finally, marital instability. This study evaluated the family stress model in a sample of 661 remarried couples using structural equation modeling. The model was evaluated both within and between spouses. Consistent with the family stress model, marital instability and quality were influenced by economic hardship and pressure through decreased spousal warmth and increased spousal hostility. Implications for remarriage education and counseling are discussed.     

Racial and Gender Differences in Pressure Ulcer Development Among Nursing Home Residents in the Southeastern United States

Objective: To determine whether there is a difference in the incidence of pressure ulcers (PU) between African American (AA) and White nursing home (NH) residents in the Southeastern United States. Methods: Data from the Centers for Medicare and Medicaid Services Minimum Data Set were examined for 113,869 residents who were free of PU at NH admission during 1999–2002. Facility and neighborhood characteristics were abstracted from the Online Survey Certification and Reporting database and the 2000 U.S. Census respectively. Results: The incidence of PU in NH among AAs and Whites was 4.7% (95% CI: 4.4–5.0) and 3.4 % (95% CI: 3.3–3.5) respectively. The association between race and PU development varied between males and females. Differences were noted between AA and White males who were dependent in mobility and between AA and White females who were bedfast and resided in facilities with less than 200 beds. Unlike for females, facility and neighborhood characteristics were not significant confounders in risk for PU incidence among males. Conclusion: PU occurred more frequently in AAs than in Whites. Results suggest that racial differences are marked among males and females with specific characteristics. Interventions for reducing this disparity should target these at-risk groups.     

The Influence of Parental,Peer, and School Factors on Marijuana Use Among Native American Adolescents

ABSTRACT

Marijuana use among Native American (NA) adolescents continues to be an ongoing concern and is often cited as the most critical health issue facing this population. Despite this recognition, few studies have examined the roles played by parental monitoring and school relationships among NA youth. This cross-sectional study used secondary data from the 2010 National Survey in Drug Use and Health to examine the combined influence of parental, peer, and school indicators on marijuana use among NA adolescents aged 12 to 17 years old (N = 287). The results of structural equation modeling suggest that peer factors and parental monitoring were significantly associated with marijuana use. In fact, the peer network was the most influential predictor. However, a significant relationship was not found between school relationships and marijuana use. Given the insignificance of school relationships, further research should examine the influence of peer interactions on marijuana use and the development of family-based prevention and intervention programs.