狗舌草提取物诱导淋巴细胞性白血病L1210细胞分化的研究

以单猪屎豆碱(MO)、槲皮素(QU)和环磷酰胺(CY)为参照,观察了狗舌草600 mL/L乙醇提取物(EX)对淋巴细胞性白血病L1210细胞体外试验的形态变化;利用流式细胞术,从DNA分子水平上检查了EX对L1210细胞各周期相的影响,探讨EX对L1210细胞的分化机理。结果发现,EX能够使L1210细胞向淋巴细胞方向发展;经EX作用24 h后,L1210细胞G0 G1期的百分比较对照组明显升高。提示EX对L1210细胞增殖的抑制作用可能是由于G1期的阻滞所致。     

芪丹通脉片对健康犬冠状动脉血流量及阻力影响

目的：观察复方中药制剂芪丹通脉片对健康犬心脏冠状动脉血流量及阻力的影响,方法：分离犬的冠状动物左旋支及主动脉根部,放置电磁流量计探头,测定不同药物在给药前后不同时刻碱诉冠状动脉血流量,计算冠状动脉阻力。结果：芪丹通脉片高剂量（生药2g/kg)能明显增加冠状动脉血流量,减少冠状动脉阻力,结论：芪丹通脉片能够增加冠状动脉血流量,调整和改善心肌供血,为缺血性心脏病的治疗提供了实验论据。     

关于长春市职工工作满意度的调查

工作满意度表达着人们对工作状况的自我感受,与职业变动、社会流动有一定的关联,可以成为测量社会流动的一个指标。调查发现,目前长春市职工的工作满意度并不是很高,得分仅为3．22。提高职工的工作满意度。必须做好多方面的工作,对此本提出了相应的建议。     

The optimisation of fingermark enhancement by VMD and Lumicyano™ on thermal paper

The enhancement of fingermarks on thermal paper can be challenging due to background staining caused by polar solvents used in fingermark enhancement techniques such as ninhydrin. This study explored a commercial one-step superglue fuming process, Lumicyano™, and Vacuum Metal Deposition (VMD) to develop fingermarks on this substrate and overcome this issue. Different sequential treatments involving Lumicyano™ and a combination of VMD methods were investigated with varying degrees of success with some sequences being highly sensitive. The VMD processes, however, were observed to generally be more effective at enhancing marks, whereas Lumicyano™ provided little or no benefit on this paper type. The results indicate that Lumicyano™ is only beneficial as a pre-treatment when the entire sequence of gold/zinc and silver/zinc is taken to completion. The gold/zinc and silver/zinc VMD processes were optimised on five different thermal papers, and the optimised techniques were then directly compared to determine which was more successful on each thermal paper type as a single treatment.     

广域组织RCEP下我国货物贸易流量的影响因素——基于静态面板数据的贸易引力模型

在广域一体化组织RCEP的区域范围内,运用基于静态面板数据的贸易引力模型分析方法,对我国货物贸易流量影响因素的问题进行了研究。首先探讨了什么是RCEP及其发展历程,其次对我国与其他RCEP成员国间的货物贸易流量进行描述性统计,接着对货物出口流量与GDP等诸多影响因素间的关系进行实证研究,再通过对描述性统计和计量研究进行总结,认为我国与其他RCEP成员国间的货物贸易增长较快但增长率并不稳定,GDP和距离因素是影响相互间贸易的主要因素,人口数量、TPP及FTA是次要因素。     

数字经济时代的全球数据安全治理与中国策略

进入数字经济时代以来,日益严峻的数据安全风险与变幻莫测的国际形势交织叠加,各国围绕数据安全治理规则博弈呈现加剧态势,引发全球数据安全治理问题。各国际行为体虽然已经意识到数据安全治理的重要性,但对全球数据安全治理并未形成统一的治理框架。全球数据安全治理仅仅由单边、双边和多边框架以及贸易规则拼凑而成,相关治理议题在公民个人、社会、经济以及国家安全等多个层面相继涌现。多领域多维度的数据安全问题难免造成治理主体利益诉求的差异,也导致全球数据安全治理出现了规则碎片化、机制效用不足、治理乏力等问题。与此同时,个别国家的数据霸权主义行为更是使得国际行为体难以凝聚共识,全球数据安全治理步履蹒跚,重视和加强对全球数据安全问题的治理迫在眉睫。中国高度重视数据安全的相关议题,由于中国在数据治理领域起步较晚,仍存在立法不完善、技术创新能力薄弱、国际合作不足、治理乏力等问题。中国需要全面、系统地分析影响数据安全的各种重大风险因素,准确把握全球数据安全趋势,进一步优化中国在全球数据安全治理中的策略选择。     

A Rationale and Method for Examining Reasons for Linkages Among Adolescent Risk Behaviors

A large volume of research has investigated interrelations among adolescent risk behaviors. Although several theoretical accounts have been proposed, researchers have not directly examined hypotheses for why risk behaviors are linked. In the present paper, a distinction is drawn between predictive factors that explain variance in risk behaviors and “linkage factors” which may provide an explanation for why risk behaviors are interrelated. The relevance of linkage factors to risk behavior research, theory, and practice is described. Further, a simple to use and easy to interpret analytic technique for exploring linkage-related issues is illustrated. Using this technique, hypotheses regarding the role of predictors in explaining linkages among risk behaviors can be tested directly. The proposed line of inquiry will provide valuable input for intervention efforts and theoretically relevant information concerning linkages among adolescent risk behaviors. Research Associate at the Brock Research Institute for Youth Studies at Brock University, Ontario, Canada. He received his M.A. in Clinical Psychology from the University of North Dakota. His major research interests are adolescent risk behavior involvement and youth activity involvement as a context for positive development. Professor in the Department of Child and Youth Studies at Brock University, Ontario, Canada. She received her Ph.D. in Developmental Psychology from the University of Waterloo. Her major research interests include adolescent risk taking and resilience, including academic underachievement and media/technology influences on lifestyle choices and learning. Assistant Professor in the Department of Child and Youth Studies at Brock University, Ontario, Canada. She received her Ph.D. in Developmental Psychology from Brock University. Her major research interests are adolescent risk-behavior involvement, particularly related to gambling, and risk and resilience.     

Profiles of Victimized Women Among the Child Welfare Population: Implications for Targeted Child Welfare Policy and Practices

Despite the call to address domestic violence along with child maltreatment, little information exists to guide services for victimized women involved with child welfare. Research shows that victimized women contend with multiple problems stemming from violent victimization. Unfortunately less is known about combinations of needs and resources among victimized women, especially for those involved with child welfare. Through an examination of needs and resources among families with child maltreatment and domestic violence, we aimed to help address this knowledge gap. Needs and resources among 1,229 victimized caregivers were examined using the National Survey of Child and Adolescent Well-being (NSCAW). Using latent class analysis, four distinct multivariate profiles of needs and resources among victimized caregivers were identified. Significant differences were found among the profile groups in the family violence they experienced in the 18 months following child welfare investigations. Based on these findings, we discuss implications for tailored practices to enhance the safety of victimized caregivers involved with child welfare. An earlier version of this paper was presented at the 9th Annual Conference of the Society for Social Work and Research, Miami, Florida in January 2005.     

延安精神与中国传统文化

延安精神是中国共产党在延安时期培育出来的。延安精神是在马克思主义、毛泽东思想指导下形成和发展的，但中国传统文化对延安精神的形成和发展同样有着深刻的影响。它们之间是继承与批判的关系，延安精神是民族精神与时代精神的汇流。     

Developmental validation of a novel lateral flow strip test for rapid identification of human blood (Rapid Stain Identification™-Blood)

Human blood is the body fluid most commonly encountered at crime scenes, and blood detection may aid investigators in reconstructing what occurred during a crime. In addition, blood detection can help determine which items of evidence should be processed for DNA-STR testing. Unfortunately, many common substances can cause red-brown stains that resemble blood. Furthermore, many current human blood detection methods are presumptive and prone to false positive results. Here, the developmental validation of a new blood identification test, Rapid Stain Identification™-Blood (RSID™-Blood), is described. RSID™-Blood utilizes two anti-glycophorin A (red blood cell membrane specific protein) monoclonal antibodies in a lateral flow strip test format to detect human blood. We present evidence demonstrating that this test is accurate, reproducible, easy to use, and highly specific for human blood. Importantly, RSID™-Blood does not cross-react with ferret, skunk, or primate blood and exhibits no high-dose hook effect. Also, we describe studies on the sensitivity, body fluid specificity, and species specificity of RSID™-Blood. In addition, we show that the test can detect blood from a variety of forensic exhibits prior to processing for DNA-STR analysis. In conclusion, we suggest that RSID™-Blood is effective and useful for the detection of human blood on forensic exhibits, and offers improved blood detection when compared to other currently used methods.