计算机技术与公安机关的科学管理

21 世纪是计算机技术高速发展的时代,快捷、准确、安全的信息传递在公安机关的工 作中起着重要作用。随着计算机技术在公安信息科学管理中的广泛使用,公安工作必 将被推向一个新的时代。     

溺死相关浮游生物基因座的复合扩增体系

目的构建溺死相关浮游生物基因座的复合扩增体系,验证体系特异性并评估其在法医溺死诊断中的应用价值。方法针对溺死相关浮游生物同源基因序列,设计特异性引物,并用FAM、HEX、TAMRA、ROX、SIZ荧光染料分组标记,构建复合扩增体系;进行体系特异性验证;以16例实验猪样本评估体系检验效能;复合扩增体系、硅藻形态学MD-VF-Auto SEM检测法及硅藻rbc L基因PCR-CE检测法分别检测28例案件样本,比较分析应用效果。结果该复合扩增体系共包含14个基因座,可特异性扩增35种浮游藻类和3种浮游细菌,人、3种人体共生菌及8种浮游细菌均为阴性。以该体系检测溺死实验猪,阳性率为90%,非溺死实验猪均未检出;检测溺死案件样本,阳性率为96%,非溺死案件均未检出。复合扩增体系与MD-VF-Auto SEM法检测案件尸体肺、肝和肾的阳性率均不具有统计学差异(P>0.05),但其与硅藻rbcL基因PCR-CE法检测案件肝和肾的阳性率均具有统计学差异(P<0.05)。结论本文针对多种溺死相关浮游生物14个基因建立的复合扩增体系,具备多种靶物种的特异性遗传标记,且所需检材量小,提高了检测效能,在法医溺死鉴定中具有良好的应用前景。     

A road to institutionalization： China＇s corruption and struggle for political reform

This essay is a study of China＇s political corruption and countermeasure for it. The author will focus on the cultural factors and the incompleteness of the market economy because these show us the reason why the corruption became severe after the initiation of the economic reform. The author will move on to search a solution within the field of political reform. The author will deal with the problem by two approaches. The first one is to focus on the democratization and the second one is to focus on the political institutionalization. The goal of the author＇s analysis is to examine which approach will work as a proper solution. The author＇s argument is that institutionalization will be the better one. The author will outline the grounds briefly. Firstly, unlike democratization, this solution shows possibility of realization. Secondly, political institutionalization has its own value of political development which was not considered sufficiently before. And finally there are advantages of strengthened accountability and limit discretion. To consolidate the author＇s argument the author will use Hong Kong＇s case where have been successfully controlled the problem by political institutionalization.     

重新认识马克思的社会发展规律思想

西方近代不少思想家立足于唯心史观探求人类社会发展规律,马克思确立了其截然不同的研究历史规律性的方法论:历史规律性是根植于人类的物质实践活动之中的,应当到那里去寻求历史规律.许多研究者把马克思早期根据西欧历史而概括出的"五形态"理论,错误地当作马克思所发现的人类社会历史发展规律,而没有看到马克思晚年在这个问题上所发生的看法的改变.真正可以代表马克思历史规律思想的,是"三形态"理论.     

关于当前世界经济危机的十点思考

当下,正在蔓延的世界经济危机不仅波及资本主义大国和小国,而且波及社会主义大国,如中国.因此,我们应给这次经济危机定性、定量、定级;同时给这次经济危机寻根、下药;并且认清这次经济危机与中国、与经济学、与经济学家的关联,从而作深层次思考.     

Profiles of Language Brokering Experiences and Contextual Stressors: Implications for Adolescent Outcomes in Mexican Immigrant Families

Adolescents from Mexican immigrant families are often embedded in a challenging social environment and experience multiple contextual stressors, including economic stress, discrimination, and foreigner stress. We consider how the effects of these contextual stressors may be amplified or diminished for adolescents who function as language brokers, interpreting and mediating for their English-limited parents. Using two waves of survey data collected from a sample (N?=?604 at Wave 1; N?=?483 at Wave 2) of Mexican American adolescents with ages ranging from 11 to 15 (M_age?=?12.41, 54% female), four distinct brokering—stress profiles were identified. Latent profile analyses revealed that with moderate levels of contextual stress, adolescents with more positive language brokering experiences (protective group) demonstrated more favorable outcomes than those with neutral language brokering experiences (moderate group) and those who did not involve themselves as frequently in language brokering activities (less-involved group). In contrast, high levels of contextual stress, coupled with more negative language brokering experiences (risk group), produced the least favorable outcomes among adolescents.     

Effects of Work Boundary Strength on Employees' Emotional Exhaustion:The Mediating Role of Role Stress

Based on organizational support theory and “stressor-strain-outcome” model, this study constructs a moderated mediation model to research the mechanism between workload boundary and employees’ emotional exhaustion. Using a questionnaire survey, the results show that there is a U-shape relationship between the workload boundary and the employees’ emotional exhaustion; and this relationship is mediated by employees’ role stress. Furthermore, boundary flexibility moderates the U-shape relationship between workload boundary and employees’ role stress. This means that the boundary flexibility can help reduce the negative effects of the workload boundary on the employees’ role stress, and compared with too strong and too weak workload boundary, the reduced negative effects are the most appropriate when the workload boundary is in the middle. Lastly, workload flexibility moderates the mediation effects of employees’ role stress.     

Self-Injurious Thoughts and Behaviors Among Youth in an Underserved Area of the Southern United States: Exploring the Moderating Roles of Gender,Racial/Ethnic Background,and School-Level

Despite the clinical relevance of self-injurious thoughts and behaviors (SITB) among youth, little is known about the subset of youth most at-risk for SITB. This study examined the moderating roles of gender, racial/ethnic background, and school-level (and their interactions) on rates of SITB within a large (N = 2638, 52.2% female), ethnically-diverse sample of middle- and high-school youth in a relatively poor and underserved area of the Southern United States. Extending extant research in this area, findings indicated a significant interaction between gender and race for self-injurious behaviors, with African–American boys reporting higher rates than all other groups. Findings also indicated significant interactions between school-level and both gender and race for self-injurious thoughts. Whereas comparable levels of self-injurious thoughts were reported across middle- and high-schools for girls and African–American youth, the frequency of these thoughts was higher among both boys and White students in high-school (vs. middle-school). Results highlight the need for further research on SITB among diverse youth in underserved areas.     

Cultural Orientation as a Moderator of the Relationship Between Chinese American Adolescents’ Discrimination Experiences and Delinquent Behaviors

The purpose of this study was to examine the relationships among Chinese American adolescents’ discrimination experiences, cultural orientations, and delinquent behaviors. Data were collected from three hundred and eleven Chinese American adolescents (58% girls) and their parents when the adolescents were 7th or 8th graders and again 4 years later. The data analyses demonstrated that adolescents’ perceptions of discrimination and victimization experiences were significantly related to their delinquent behaviors conditionally based upon their cultural orientation. Specifically, adolescents’ high Chinese cultural orientation amplified the negative impact of discriminatory experiences on delinquent behaviors whereas high Western cultural orientation protected them against that impact. The significance of both ethnic and mainstream cultural orientations for understanding ethnic minority adolescents’ adjustment and improving their adjustment outcomes is discussed.