SPE/UPLC法检测血中吗啡、苯丙胺类及氯胺酮

目的建立SPE/UPLC方法在同一条件下同时检测血中吗啡、苯丙胺类及氯胺酮。方法采用SCX 3cc（60mg）固相萃取柱萃取血中吗啡、MA、MDMA、MDA及氯胺酮,用超高效液相色谱（UPLC）-二极管阵列检测器（PDA）检测,结合保留时间和紫外光谱进行定性、定量分析,对实验各环节进行优化,并进行实际案例检测。结果吗啡、MA、MDMA、MDA、氯胺酮的固相萃取提取回收率分别为81.4%±2.51%、88.2%±2.48%、91.8%±2.03%、93.8%±1.46%、74.8%±2.27%,峰面积和质量浓度的线性关系良好（r〉0.999）,线性范围分别为0.08～100μg/mL、0.4～100μg/mL、0.2～75μg/mL、0.3～75μg/mL、0.4～100μg/mL,检出限分别为30pg、200pg、80pg、100pg、200pg。结论本文所建方法适用于血中吗啡、苯丙胺类、氯胺酮常见毒品的筛选及定量分析。     

Legitimacy of Inequality in a Highly Unequal Context: Evidence from the Chilean Case

Economic inequality is usually assumed to be a threat to social cohesion and democracy. Nevertheless, this opposition of inequality and democracy is based on further assumptions such as (a) that people perceive economic inequality accurately, and (b) that, by and large they consider inequality unjust. Research into distributive issues has not found consistent support for neither of these assumptions. Quite the contrary, empirical evidence indicates that economic inequality is widely misperceived and that inequality is to some extent considered legitimate. So far most of the empirical evidence in the area of legitimacy comes from experimental studies in the developed world. The present research aims at widening the scope of legitimacy studies by focusing on Chile as a case country, one of the societies with the highest economic inequality worldwide, guided by the question to what extent is economic inequality considered legitimate in a context of high economic inequality? In addressing this question, and based on previous evidence, the article proposes a way to evaluate (a) the legitimacy of inequality at a country level via survey research, and (b) the role of inequality perception and justice ideologies in the justification of economic inequality. The data to be analyzed is the public opinion survey International Social Justice Project (ISJP), implemented in Chile in the year 2007 (n = 890). Multivariate analysis results reveal signs of legitimacy of inequality in Chile, opening a series of issues regarding the acceptance and stability of unequal distributions.     

The Status and Characteristics of Couple Violence in China

A couple’s relationship is very important to marital well-being as well as the harmony of family and society. Violent behaviors in marriage have bad effects on people’s physical and mental health and cause large social burdens. In this study, we investigated 194 couples in Beijing to explore the status and characteristics of couple violence from three aspects by using Revised Conflict Tactics Scale (CTS2). We conclude that: (1) Couple violence is universal, although the frequency is not so high. Prevalence and frequency of psychological violence are higher than physical and sexual violence; rate of wives’ victimization is significantly higher than that of husbands; frequency of the perpetration of sexual violence by husbands is significantly higher than that by wives. (2) There is concurrence of different types of couple violence. Specifically, physical and sexual violence are usually accompanied by psychological violence; however, psychological violence exists independently. (3) Couple violence is often bidirectional, especially in psychological violence. (4) Marital length is negatively correlated to wives’ perpetration of physical violence and their victimization of sexual violence.     

收入风险与个人职业选择——基于风险态度的研究

本文采用"北京市企事业单位职工就业状况调查"的数据,对北京市国有部门和私人部门职工的收入风险、风险态度与其职业选择之间的关系进行了实证研究。结果发现:越愿意冒风险的个体,越不会选择去国有部门工作,这反映了风险态度对个人职业选择的影响;个人选择在国有部门工作,主要是考虑到收入、工作压力、社会地位、工作稳定性这四个因素;就我们的调查样本而言,只有受过较高教育程度(硕士及以上)的个体选择私人部门工作才获得了收入风险补偿。据此,文章提出了完善劳动力市场的政策建议。     

Insiders or outsiders? Argentinean immigrants in Spain

Immigration and citizenship laws mark the boundaries of the imagined community that is the nation. However, these boundaries are not stable constructs: quite the contrary, they are sites of constant struggle and change. This paper discusses the evolving status of Argentinean-born immigrants in Spain since 1985 in these two bodies of legislation. After a brief introduction to the history of population exchanges between Spain and Argentina throughout the twentieth century, I draw from official statistics and Spanish legislation to discuss how changes in the legislation have impacted the arrival and settlement of Argentineans in Spain since 1985, when the country joined the European Union. I then analyse material gathered in more than 30 in-depth interviews conducted in the fall of 2006 and explore respondents' efforts to preserve the political privileges that Argentineans traditionally enjoyed in Spanish immigration and citizenship legislation. I conclude that further work is needed to understand the impact of the changes introduced in these two bodies of legislation in the face of increased immigration flows, particularly in the contexts where colonial histories and the europeanisation of national institutions collide.     

论我国古代行政派出组织的缘起、特点与影响

我国古代政府为了实现中央对地方的监察,对特定区域的治理,完成特定的任务,派出机关、派出机构以及派出官吏等形式各异的政府派出组织,利用自身虚位性、临时性、灵活性的特点,通过分权的方式分散派往各地的派出组织来强化中央集权国家控制的同时,对地方政府行政区划的设置、监察制度、职官制度的演变发展等方面均产生了深远影响。     

信息披露:政府采购腐败防治的新审视

阳光采购对政府采购信息披露具有四大目标诉求:公开、明确、及时与诚信。然而,当前我国政府采购信息披露在认识、制度、执行和技术层面等四重缺失造成的信息不对称,严重影响了政府采购的公平公正,并诱发腐败行为的产生。因此,只有加强认知教育、完善制度建设、优化执行管理、强化技术支持,才能真正发挥信息披露在预防和遏制政府采购腐败中的作用。     

甘肃省人口老龄化趋势预测分析——基于ARIMA模型分析

本文运用ARIMA模型对甘肃省老年人口数量和比重进行了预测,进一步探讨了甘肃省人口老龄化将带来的各种社会问题并提出了相应的解决措施,以应对老龄化带来的挑战。     

教学智慧:提高小学英语课堂教学效率的途径

课堂教学是一种通过知识引导学生智慧成长的艺术,是教师对学生智慧的引导、激发和唤醒,是师生精神的交流与对话。在小学英语课堂教学中,发挥教学智慧的作用,在教学设计环节用智慧建构生态课堂,在教学实施环节用智慧实现动态生成,在教学评价环节用智慧完善课堂教学,是提高小学英语课堂教学效率的重要途径。