面对经济新形势的理性思考

“十五”第一年开局良好 ,扩大内需的战略方针仍需坚持。但扩张型财政政策和货币政策已经出现边际效应递减的势头和政策长期化的危险倾向 ,应当适时把政策的重点转向化解经济风险。     

犬冠状病毒YS1株的致弱驯化与免疫试验

应用猫肾传代细胞(CRFK)单层接毒方法将犬冠状病毒(CCV)强毒YS1株连续传代驯化至60代,经安全性试验和免疫原性测定,该强毒株己驯化至弱毒水平,对犬安全,免度原性良好.     

论《三国演义》中的文势——兼及毛宗岗的“文势”观

毛宗岗评点《三国演义》时 ,提及“文势”一词 ,但缺乏严密的论证和总结 ,其主要弊端在于回避作者的主观命意评文势。本文通过对《三国演义》的具体论证 ,认为作者的主观命意决定作品内在结构的具体形态 ,当这一形态与读者审美心理机制之间产生契合 ,文势才得以最终生成     

Empirical analysis of the STR profiles resulting from conceptual mixtures

Samples containing DNA from two or more individuals can be difficult to interpret. Even ascertaining the number of contributors can be challenging and associated uncertainties can have dramatic effects on the interpretation of testing results. Using an FBI genotypes dataset, containing complete genotype information from the 13 Combined DNA Index System (CODIS) loci for 959 individuals, all possible mixtures of three individuals were exhaustively and empirically computed. Allele sharing between pairs of individuals in the original dataset, a randomized dataset and datasets of generated cousins and siblings was evaluated as were the number of loci that were necessary to reliably deduce the number of contributors present in simulated mixtures of four or less contributors. The relatively small number of alleles detectable at most CODIS loci and the fact that some alleles are likely to be shared between individuals within a population can make the maximum number of different alleles observed at any tested loci an unreliable indicator of the maximum number of contributors to a mixed DNA sample. This analysis does not use other data available from the electropherograms (such as peak height or peak area) to estimate the number of contributors to each mixture. As a result, the study represents a worst case analysis of mixture characterization. Within this dataset, approximately 3% of three-person mixtures would be mischaracterized as two-person mixtures and more than 70% of four-person mixtures would be mischaracterized as two- or three-person mixtures using only the maximum number of alleles observed at any tested locus.     

“三个代表”与“三大规律”—学习十六大与胡锦涛“七一”重要讲话

"三个代表"重要思想是与马克思主义理论"一脉相承"而又与时俱进的科学体系,体现着我们党适时把握了两大历史性课题的统一及其解决的基本原则和机制,反映了我们党中央以社会主义建设规律为中心的"三大规律"的统一把握,达到了具体化、系统化的新高度,蕴涵了主体能动性与规律客观性统一的深刻内容.     

论比例原则与公安行政强制措施的适用

比例原则包括妥当性、必要性与相称性原则。结合公安行政强制措施的实践 ,比例原则适用时应依照考虑目的的正当性 ;措施选择的多种可能性 ;选择时的相关考虑 ;选择最温和措施 ;不可过度及目的达成应立即终止等六个步骤进行。     

Risk factors for sexual victimization among male and female homeless and runaway youth

Risk factors associated with the likelihood of being sexually victimized by a stranger or friend/acquaintance since being on the street was examined among 372 homeless and runaway youth. Young people were interviewed on the streets and in shelters by outreach workers using a systematic sampling strategy. Youth who engaged in more high-risk behaviors were expected to be at greater risk for sexual victimization by both known and unknown assailants. Results indicated that for females, running from home for the first time at an earlier age was associated with sexual victimization by both a stranger and friend/acquaintance. However, engaging in deviant subsistence strategies, survival sex, and grooming predicted being sexually victimized by a friend/acquaintance. For males, survival sex and grooming predicted stranger sexual victimization, whereas sexual orientation was associated with sexual victimization by a friend/acquaintance. Overall, 35% of the sample had been sexually victimized.     

Systematic differences in electropherogram peak heights reported by different versions of the GeneScan software

DNA profiling using STRs on the 310 and 3100 Genetic Analyzers routinely generates electropherograms that are analyzed with the GeneScan software available from the instrument's manufacturer, Applied Biosystems. Users have been able to choose from three different smoothing options that have been known to result in significant differences in the peak heights that are reported. Improvements in the underlying algorithm of the most recent version of the software also result in significant and somewhat predictable differences in peak height values. Laboratories that have performed validation studies using older versions of GeneScan should either reanalyze the data generated in those validation studies with the newest version of the software or otherwise take into consideration the systematically higher peak height values obtained as they begin following the recommendation of the manufacturer and use the new algorithm.     

浅谈计算机实践教学

在《计算机应用基础》教学中,应对内容有所取舍,注重知识理解与上机实践同步,以提高实践教学的效益。