公安工作应对新型经济犯罪的对策

新型经济犯罪主要有工具新型、领域新型、对象新型和主体新型几种类型,这类犯罪具有相当的社会危害性,公安机关在应对时应当树立"稳定第一"的指导思想,坚持"打防结合,以防为主";树立创新意识,在查处新型经济犯罪的工作中努力探索新思路、新途径、新机制;建立高素质的公安经侦队伍,适应打击新型经济犯罪的需要;强化经侦基础业务建设,增大科技含量,为打击新型经济犯罪提供强有力的支持。     

物权请求权与消灭时效

法学理论关于物权请求权的性质有物权说、债权说和独立请求权说。债权说的物权请求权的性质定位,不仅符合法律关系或权利类型的模式化法典建构需要,而且也为消灭时效制度的适用找到了法学依据,同时也为完善立法提供了方法上的指导。     

2007-2011年广东省猪圆环病毒2型分离株的遗传变异分析

为了解广东省2007-2011年猪圆环病毒2型(PCV2)流行毒株的遗传变异情况,采用PCR方法对本实验室分离到的49株PCV2分离株进行全基因组克隆和序列分析。所分离的毒株全长分别为2株1 766bp、45株1 767bp、2株1 768bp。通过序列比对进行遗传变异分析,无论是这49株病毒间还是与GenBank中的8株PCV2基因组间的核苷酸同源性均为93.2%～99.9%;在遗传演化关系上,49株分离株分布于2个大群,分别为PCV2b和PCV2d分支。提示目前疫苗毒株不处于广东地区PCV2流行毒株分支中,应该引起高度的重视。     

PCV2 ORF2 B细胞表位与PPV VP2真核表达质粒的构建及其免疫原性

为了研究猪圆环病毒2型(PCV2)ORF2B细胞表位与猪细小病毒(PPV)VP2重组真核表达质粒的免疫原性,将PCV2ORF2的B细胞表位基因(141～257bp)重组到PPV SC-1株VP2基因的N端,构建了真核表达质粒pCI-VP2.ORF2B。用脂质体转染法将重组质粒pCI-VP2.ORF2B转染至Vero细胞中,利用间接免疫荧光法检测其在体外的表达情况。将重组质粒免疫小鼠,并设猪细小病毒灭活疫苗、猪圆环病毒亚单位疫苗和空载体对照组,采用MTT比色法、流式细胞术和ELISA法分别对免疫小鼠脾淋巴细胞的转化功能,外周血CD4+和CD8+淋巴细胞比例,PCV2和PPV IgG抗体效价进行了检测。结果表明,转染Vero细胞后第48小时用间接免疫荧光法能在荧光显微镜下观察到绿色荧光,检测到特异性蛋白的表达;pCI-VP2.ORF2B免疫组脾淋巴细胞从第7天开始对ConA有明显反应,显著高于对照组;CD3+CD4+、CD3+CD8+T淋巴细胞的数量高于或显著高于对照组;在免疫后第14天检测到PPV/PCV2IgG抗体。提示pCI-VP2.ORF2B能够有效诱导机体产生细胞免疫和体液免疫反应。     

Regime Age and Terrorism: Are New Democracies Prone to Terrorism?

One of the earlier empirical studies of the relationship between regime type and terrorism published in International Interactions determined that while established democracies were significantly less likely to experience terrorist attacks than were nondemocratic countries, newly established democracies were highly vulnerable to terrorism. Subsequent empirical studies have routinely controlled for both regime type and age, but scholarly understanding of the effect of regime longevity on terrorism remains underdeveloped. This study revisits the relationship between terrorism and regime type and regime age using updated data, analytical techniques, and time-series and finds that while young democracies experience more terrorism than older democracies, dictatorships of any age experience less terrorism than any other type of regime.     

Credibility and Flexibility: Political Institutions,Governance, and Foreign Direct Investment

This article argues that the relationship between political institutions and foreign direct investment is both nonlinear and conditional upon status quo policies. The empirical analysis demonstrates an inverted U-shaped relationship between political institutions and foreign direct investment in developing countries, with four veto players being the most attractive institutional arrangement. Countries with too few or too many veto players are not favored because of either high policy uncertainty or high policy rigidity. In addition, the benefits and costs of credibility and flexibility vary in good times and hard times. The benefits of maintaining status quo tend to outweigh the costs in countries with good initial regulatory environment. The costs of maintaining status quo tend to outweigh the benefits when countries are more vulnerable to exogenous shocks.     

高度近视者眼球结构及其功能变化的法医学意义

高度近视者眼球可发生一系列不可逆的组织形态学改变。其中,眼轴、角膜曲率、前房深度、眼底形态、黄斑神经上皮厚度等改变与眼球的屈光状态及视觉功能有着密切的关系,玻璃体混浊、玻璃体脱离、白内障、青光眼、后巩膜葡萄肿、视网膜脱离等并发症的发生率也随着近视屈光度数的加深而增高。越来越多的研究表明高度近视者视觉功能改变是上述多种结构变化共同作用的结果。因此有望通过应用多项检查方法观察高度近视者眼球的结构变化,并根据这些变化分析评估高度近视者视觉功能的损害程度,为法医学评价眼部外伤与疾病的关系以及眼外伤的司法鉴定提供支持和依据。     

Persistence of innovation: stylised facts and panel data evidence

This paper investigates whether firms innovate persistently or discontinuously over time using an innovation panel data set on German manufacturing and service firms for the period 1994–2002. It turns out that innovation behaviour is permanent at the firm level to a very large extent. Using a dynamic random effects discrete choice model and a new estimator recently proposed by Wooldridge (2005), I further shed some light on the driving forces for this phenomenon. The econometric results show that past innovation experience is an important determinant for manufacturing as well as for service sector firms, and hence confirm the hypothesis of true state dependence. In addition, the results highlight the important role of knowledge provided by skilled employees and unobserved individual heterogeneity in explaining the persistence of innovation.

烧骨个体识别的研究进展

烧骨DNA检测在火灾、焚尸、爆炸等事故中的个体识别和亲权鉴定方面,发挥着越来越重要的作用。STR作为重要的遗传标记系统,已广泛应用于法医学个体识别、亲权鉴定等领域。本文从焚烧温度及时间对烧骨STR分型的影响、烧骨STR基因座的选择和烧骨DNA的提取方法三个方面结合目前的研究进展进行了概述。     

视野空间注意的事件相关电位研究进展

在视野脑机制的研究中,事件相关电位（event-related potential,ERP）具有高时间分辨率的特点。近年来高密度记录技术和脑成像技术的发展,提高了ERP在脑功能定位方面的应用。本文概述了近年来有关ERP在视野空间注意研究的实验方法、结果和初步结论,并提出今后相关问题的研究方向及法医学意义。