人体血液体外电击致血细胞穿孔的扫描电镜观察

目的探讨血细胞体外电击时细胞膜的结构变化。方法对成人血液分别分组通过220V交流电电击5,10,20,30s和1min后,用扫描电镜观察血细胞膜的变化。结果电击后,即可以观察到红细胞与白细胞的细胞膜穿孔,其中红细胞穿孔可为一个或多个,形状多为圆形或卵圆形,白细胞穿孔则为多个,呈筛网状;穿孔细胞数随电击时间延长而增多;电击5s时为6%左右,以后逐渐增加,至电击1min时,穿孔细胞数可达40%左右。结论电流作用可以使血细胞膜发生穿孔,穿孔细胞数随通电时间延长而增多。     

New findings on the transfer of computing applications among cities

This paper presents a study of the concepts of transferring computer technology among city governments. A sample of cities from a domestic population and an international population are used as the basis of the research. Contrary to expectation, and for both populations, the survey indicated the level of computer applications transfer among cities was found to be low compared to the amount of total application development. It was determined that an important source of transfer information was from “centers” such as the federal government, vendors, and transfer agencies, rather than city to city. International cities that were studied seem to experience a propensity toward centralized control at the national level. These controls often include the transfer of technical information. Further, the types of transfer may vary widely between the domestic vs the international cities. That is, domestic city transfers tend to be operations-oriented, while transfers from national centers tend to be management oriented. In general the study supported prior conclusions concerning the difficulties of transfer. The problem of mismatch and difficulties in modification make transfers very risky. Even so, there are many persons willing to take the risks in order to try to achieve lower costs and to realize the opportunity to obtain sophisticated applications.     

The development of an enzyme-linked immunosorbent assay for 19-OH PG F1 alpha/F2 alpha

An enzyme-linked immunosorbent assay (ELISA) has been developed for the detection of semen-specific 19-OH prostaglandin F1 alpha/F2 alpha (PGF). The assay can reliably and reproducibly detect as little as 2 pg 19-OH PGF/100 microliters and allows for the rapid analysis of large numbers of swab and stain extracts for the presence of semen.     

网络空间的“延异”特性浅析——兼议网络思想政治工作应对策略

网络空间具有互文性、变异性、解构性、干扰性以及边缘性等特性,表现在人的心理性结构反映上主要是心态浮躁,专注力下降;思维浅显,思想力不深;颠覆传统,个人至上等.这对于思想政治工作者深刻理解网络的内涵具有重要意义,因而也能使其依据网络本身的特点和对人的心理性影响,思考针对性良策.     

探寻19802010年法院收案数的变化规律——兼谈对未来收案数变化趋势的展望和预测

虽然改革开放30年来人民法院案件数的年均递增速度高达10％以上,但人民法院的一审收案数和执行收案数并非始终保持着直线型上升发展态势,而是呈现出一种有升有降、升多降少的波浪型上升发展态势;经济的高速增长、城镇化水平不断提高、人民群众法治意识和维权意识不断增强是人民法院收案数30年来保持高速增长的根本原因,司法政策的变化更是促使人民法院收案数产生阶段性变化的核心因素;在当前相对较低的诉讼收费标准等因素刺激下,未来法院各类案件的收案数量仍将继续保持上升态势,但增速会低于过去30年来的平均增速。     

Child maltreatment histories among female inmates reporting inmate on inmate sexual victimization in prison: the mediating role of emotion dysregulation

Despite data indicating that child maltreatment (CM) in various forms is associated with adult sexual victimization among community women, few studies have explicitly explored how types of CM might relate to prison sexual victimization. Because little is known about how CM might give rise to prison sexual victimization, the present study also examined emotion dysregulation emanating from early abuse experiences as a potential mediator in the link between early CM and inmate-on-inmate prison sexual victimization. Approximately 168 incarcerated women completed self-report inventories assessing various types of childhood maltreatment, emotion dysregulation, and coerced or forced sexual experiences in prison. Nearly 77% of the sample endorsed experiencing at least one form of CM, with 64% of inmates reporting that they experienced two or more forms of CM. Approximately 9% of inmates reported sexual coercion and 22% reported a forced sexual experience in prison. Each form of CM was associated with prison sexual coercion; however, fewer associations emerged between CM and forced prison sexual experiences. Emotion dysregulation was found to mediate links between CM, particularly co-occurring CM, and sexual coercion in prison, but it was unrelated to forced prison sexual experiences. Implications are discussed.     

Medical regulation of cognitive enhancement devices: some concerns

The authors present a cogent and detailed case for altering the Medical Devices Directive to allow regulation of cognitive enhancement devices (CEDs). Protection against significant risk of harm, especially for the vulnerable, and promotion of benefit through informed use of CEDs are all good features of the proposal. However, the pre-market approval process has limitations, which we explore. We raise the possibility of ‘risk compensation’ in response to the introduction of safety measures, which could alter its effectiveness. The proposal alludes to use of ‘formally trained practitioners,’ which provide a further tier of regulation for CEDs within the proposal. We consider some positive and negative implications of this aspect of the proposal that might warrant further consideration.