Determination of cocaine and benzoylecgonine in human amniotic fluid using high flow solid-phase extraction columns and HPLC.

A new solid-phase extraction procedure for the determination of cocaine and benzoylecgonine in amniotic fluid, using high flow co-polymeric sorbents is reported. The recoveries of cocaine and benzoylecgonine within the range 0.1-1 mg/l were 95.7% and 50.3%, respectively. The use of high-flow sorbents allowed the easy extraction of amniotic fluid regardless of sample viscosity or physical nature. The use of these solid-phase columns provided many advantages over the more commonly used solvent extraction, including an increase in extraction speed and efficiency, reduced operator time, reduced solvent use and disposal volumes and exceptional extract quality. Further, the determination of amniotic fluid obtained from pregnant cocaine users may provide important information about handling of cocaine by the fetus at various gestational ages. The procedure was successfully applied to amniotic fluid from suspected cocaine abusers.     

用酶标抗人精液单克隆抗体A_(10)C_6建立ELISA斑点法快速鉴定人精(液)斑

作者用过氧化物酶标记自己研制的抗人精液单克隆抗体A10C6建立了简便快速鉴定人精斑的ELISA斑点法，直接通过酶标抗体上的酶催化底物显示颜色变化，来判断结果，阳性呈灰色斑点，阴性为无色。其结果只对人精斑浸出液显示阳性斑点，对人的其他组织器官及体液均呈阴性，对动物精斑也无交叉反应，精斑浸出液稀释到1：3200倍仍呈阳性结果。     

Trends in North Korean foreign policy

North Korea’s foreign policy track record in the post-cold war era is mixed. Most notable setbacks are the diplomatic normalization between the Soviet Union (now Russia) and South Korea; the reversal of its UN policy that paved the way for the simultaneous admission of the two Korean states to the world organization; and the diplomatic normalization between China and South Korea. On the credit side of Pyongyang’s diplomatic ledger are changes in its relations with Tokyo and Washington. While tangible results have yet to materialize, particularly in North Korea-Japan relations, the groundwork has nonetheless been laid for significant improvement. North Korea’s suspected nuclear weapons development program has played a major role in the unfolding of its relations with the United States. Conceptually, North Korean foreign policy can be explained in terms of its quest for three interrelated goals: security, legitimacy, and development. In the post-cold war era security appears to have emerged as the most important of the three goals. North Korea is at a crossroads. The choices it makes in foreign policy will determine not only the direction of its domestic policy but, ultimately, the survival of the regime itself. The external players in Seoul, Washington, Tokyo, Beijing, Moscow, and Vienna (the IAEA) have varying degrees of leverage over Pyongyang’s policy as well.     

Sudden death in angiodysplasia of the gastroesophageal junction.

A 22-year-old Korean soldier, who had received blows to the neck and epigastrium from an officer 10 h earlier, suddenly died after massive hematemesis. He had been in relatively good health except for episodes of blood-tinged vomiting approximately 5 and 7 months prior to this event. Postmortem examination revealed angiodysplasia involving the gastroesophageal junction, and the stomach was distended with blood. No abnormal findings were present around the whole viscera, and the duodenum was free of blood. The pathologic significance of upper gastrointestinal angiodysplasia as a potential source of bleeding and a chronologic correlation between the trauma and bleeding are discussed.     

民办高校兴起所引发的社会治安问题及其对策

作为新事物的民办高校,人们在肯定其积极作用的同时,对其在教育环境、管理体制等方面所引发的社会治安问题也是不容忽视的。各级管理部门应针对民办高校发展的独特性,从其教学模式等各方面解决问题,促其更好地为我国教育事业服务。     

WINNING COALITIONS AND ETHNO-REGIONAL POLITICS: THE FAILURE OF THE OPPOSITION IN THE 1990 AND 1995 ELECTIONS IN COTE D'IVOIRE

Why is that former dominant or single party regimes, especiallythose in Africa, have generally survived and even emerged strengthenedafter the introduction of multi-party competitive elections?In Côte d'lvoire since 1990 the ruling party has beenable to win elections by using incumbency to present itselfas the organization most likely to be capable of putting togethera winning coalition. In a society segmented by a multiplicityof cultural and religious divisions and where political poweris a zero-sum game, the logic of democratic representation meansthat no group can afford to be excluded. Yet in the 1990 and1995 Ivorian elections .the opposition attacked die ethnic characterof the government and deliberately mobilized ethnic minorities,regional and religious (Islamic) sentiments. They thereforefailed to escape, in electoral terms, from their extremely localizedstrongholds. Their attempt to mobilize around an anti-foreignerplatform in 1990 rebounded in 1995 when the government itselftook over their ‘ultra-nationalist’ stance by excludingnon-Ivorians from the elections. The consequent exclusion ofthe opposition's favoured Presidential candidate and the failureof the opposition alliance to agree on a non-northern, non-Islamicalternative candidate led to a violent boycott and the eventualcollapse of the opposition alliance.     

出入境法律制度与北京奥运安全

安全问题始终是所有奥运主办城市面对的核心问题。从世界范围来看,奥运举办国家对出入本国国境的活动进行了有效的控制和防范,这是保障国家安全和奥运安全的第一步。我国现行出入境法律制度能否适应这一历史要求,为2008年北京奥运提供安全、完善的社会法制环境?如何完善出入境领域的立法、加强执法以保障奥运安全?本文在深入调研基础上,对出入境领域的立法、执法现状中存在的问题进行了深入研究,并提出了相应的对策。     

Examining the empirical relationship between prison crowding and inmate misconduct: A meta-analysis of conflicting research results

Incarceration rates in the United States dramatically increased over the past several decades. This trend has drawn significant academic attention to prison overcrowding and its potential effect on inmate misconduct. The empirical relationship between inmate misconduct and overcrowding, however, is less than clear. To be sure, studies indicating positive, negative, and null relationships can all be found in the literature. The current research subjects this body of literature to a meta-analysis in an effort to: (1) clarify the direction and strength of the relationship between overcrowding and rates of prison misconduct across all studies, and (2) to uncover the degree to which variation in research outcomes can be attributed to methodological differences across studies. Results indicate that prison crowding has little substantive impact on inmate misconduct. Implications of the findings are discussed in detail.     

我国专利法对职务发明规定之不足与完善——由一起专利纠纷案引发的思考

我国专利法对职务发明及其判断标准的规定存在若干不足,特别是在立法指导思想和具体法律条文的设置方面存有不合理的地方,不利于促进科技进步,需要加以修改。建议立法树立契约优先的原则,尊重当事人对职务发明的权属和利益分配进行约定,改变职务发明与非职务发明“二分法”的形式,严格单位对职务发明的举证责任要求,并从主要利用单位物质技术条件、发明人离职、转职和奖励措施等方面对专利法进行完善。