The single most polymorphic STR Locus: SE33 performance in U.S. populations

The STR locus SE33 (ACTBP2) located on chromosome 6 (6q14) is arguably the most polymorphic marker examined thus far by the forensic community with a heterozygosity of >0.95 in some populations. Three different primer sets were utilized in this study in order to assess the possibilities of primer binding site mutations. Population variation was measured in 460 U.S. Caucasian, 445 African American, 336 Hispanic, and 202 Asian samples along with mutation rates from almost 400 father–son pairs. In addition, the 10 genomic DNA components in NIST Standard Reference Material SRM 2391b were sequenced and found to exhibit a variety of additional base changes, insertions, and deletions outside of the SE33 repeat region.     

对我国资本充足率监管中次级债发行的辩证思考

与其说次级债的发行给商业银行的有效监管带来了一种福音,倒不如说它更意味着对监管者监管能力、边缘性法律制度之完善及一国金融法治水平的莫大挑战。事实上,次级债的诞生本就是一种博弈的产物,这妥协之中必定隐含着制度固有的瑕疵（创新之成本）。而且,制度预设价值的兑现也是一个因国而异的问题。因此,制度理性的创新需要我们透过次级债“债”的本质并基于现实可用的资源进行冷静的思考。     

美国次贷危机的再思考

本文以美国次贷危机为大背景,深入探讨其产生的原因及其后果,认为美元为主导的浮动汇率制是导致资产泡沫产生的土壤,以债权衍生品为主导的扩张是系统性风险的直接传递者,而相应监管的缺失导致危机蔓延,其结果必然导致美元危机。依据危机所带来的必然趋势,相应提出了我国应对危机转变增长方式的策略思考。     

Pinpoint authentication watermarking based on a chaotic system

Watermarking technique is one of the active research fields in recent ten years, which can be used in copyright management, content authentication, and so on. For the authentication watermarking, tamper localization and detection accuracy are two important performances. However, most methods in literature cannot obtain precise localization. In addition, few researchers pay attention to the problem of detection accuracy. In this paper, a pinpoint authentication watermarking is proposed based on a chaotic system, which is sensitive to the initial value. The approach can not only exactly localize the malicious manipulations but reveal block substitutions when Holliman-Memon attack (VQ attack) occurs. An image is partitioned into non-overlapped regions according to the requirement on precision. In each region, a chaotic model is iteratively applied to produce the chaotic sequences based on the initial values, which are determined by combining the prominent luminance values of pixels, position information and an image key. Subsequently, an authentication watermark is constructed using the binary chaotic sequences and embedded in the embedding space. At the receiver, a detector extracts the watermark and localizes the tampered regions without access to the host image or the original watermark. The precision of spatial localization can attain to one pixel, which is valuable to the images observed at non-ordinary distance, such as medical images and military images. The detection accuracy rate is defined and analyzed to present the probability of a detector making right decisions. Experimental results demonstrate the effectiveness and advantages of our algorithm.     

武汉市内环线交通秩序评价及改善

道路交通秩序定量评价与分析是交通管理过程中很重要的一项工作。本课题试图对武汉市内环线道路进行交通秩序评价和分析,并针对存在的问题制定改善交通秩序状况的对策或建议,以达到促进内环线交通安全、畅通、秩序良好之目的。     

本轮经济下行阶段增长与就业相背离了吗?

近年来,伴随中国经济进入下行阶段,中国经济增长由高速转向中高速,从官方公布的数据来看,总体就业形势却并未如预期那样恶化,以致有观点认为目前我国经济运行出现了“增长与就业相背离”的现象。本文试图解释“增长与就业相背离”这一现象的发生。通过利用相关数据并构造科学的方法计算中国经济下行阶段失业率,以此判断中国经济下行阶段经济增长是否与就业相背离,通过实证分析发现在本轮经济下行阶段增长与就业并没有相背离。本文的研究结论对于深刻理解中共中央关于就业优先政策具有重要现实意义。     

A Comparative Analysis and Evaluation of Specialist PPP Units’ Methodologies for Conducting Value for Money Appraisals

Governments throughout the world are turning to public?private partnerships (PPPs) as a means of providing new infrastructure. The decision to adopt a PPP over conventional government procurement is usually based on a value for money (VfM) appraisal, but this analysis is conducted differently in different countries. This article describes the correct way to conduct VfM analysis if the goal is to minimize the present value of the costs to the Treasury and if the goal is to maximize social welfare. It then compares the documented methodologies of nine specialist PPP units. It identifies four ways in which these methodologies depart from either of the correct approaches, and shows how each departure favors the PPP option. Finally, it shows how the UK approach might be augmented to determine the best value to society.     

韩国废弃物循环利用制度探析

为了解决经济高速增长以及大量生产、大量消费所带来的大量废弃、资源浪费、生态退化和环境污染等问题,韩国较早开始了废弃物的处理和再利用事业,建立和实施了生活废弃物从量制、废弃物保证金制度及负担金制度、EPR制度等,结果废弃物的再利用率得到了不断的提高。虽然这些制度还存在一些问题,有待于在实践中进一步完善,但韩国在这方面所做的努力和探索,会给我们提供有益的启示。     

抢劫银行犯罪研究--实证分析:张君、鹿宪州等22起抢劫银行案

抢劫银行犯罪大致经过犯罪决意、犯罪准备、犯罪实施、犯罪善后四个阶段.犯罪人选择犯罪目标不是盲目的,是理性选择的结果.导致抢劫银行犯罪高成功率的主要因素有犯罪职业化程度的提高,涉暴武器的管理失控,银行自身存在的不良因素等.在防范银行抢劫方面,除了注重技术设施的硬件防范外,严格的管理,平时对职员的严格培训及其安全意识的培养也是降低银行抢劫案件发生及其成功的关键因素之一.     

汇率水平、生产成本与贸易发展——基于动态博弈模型分析

该文基于动态博弈模型分析了一国汇率和产品生产成本变化对国内贸易和进出口贸易的影响,得出一国汇率与国内贸易和出口正相关,而产品生产成本与国内贸易和出口负相关,同时汇率对生产成本发挥作用的程度具有乘数效应的结论。充分认识这种关系有利于正确把握社会主义市场经济条件下的宏观调控方向,对中国实现经济又好又快发展意义重大。