马兰多糖的含量测定

目的 测定马兰中多糖含量,为马兰的应用和质量评价提供科学依据。方法 以葡萄糖为对照品,采用苯酚-硫酸比色法,在490 nm波长下测定多糖含量。结果 不同产地、采收时间的马兰多糖含量差异显著。结论 苯酚-硫酸比色法操作简单,重复性好,结果准确可靠,可用于马兰中多糖的含量测定。     

执行结构转换下的权力互动——宁波市审批制度改革的政策过程分析

在宁波市审批制度的改革过程中,削减审批事项和规范政府行为的审批制度改革(以下简称审改)是如何展开的,有哪些变量影响审改政策执行的成功与失败,这些变量之间又有着什么样的逻辑关系,通过对宁波市审改的政策过程分析,运用执行结构转换理论,对宁波市审改政策的执行过程进行了解释.认为审改政策执行是政策执行结构不断转换的过程.在审改政策的执行过程中,改革决策团体和执行团体之间是权力互动的.执行结构转换和权力互动过程是影响审改政策执行成败的因素.在宁波市审改的案例中,削减审批事项的执行结构从"有限分权"模式开始,逐渐向"有限分权与关系主导互动"模式转换;在规范政府行为时,政策执行结构又从"有限分权与关系主导互动"模式开始,逐渐向新的"有限分权"模式转换.在不同的执行结构模式下,审改决策团体和执行团体运用各自的权力资源讨价还价、策略互动的方式是不同的,从而影响到审改政策的执行结果.     

侗族大歌的符号学解读

根据符号学理论,音乐是一种特定社会以及文化的符号,音乐符号形式成为人类认知和参与社会活动的意向。侗族大歌作为音乐形式是一种原声态符号,在侗族的社会生活中有其独特的文化价值和社会功能。它不仅是音乐、语言和生态环境符号的结合体,也是侗族文化、历史、生态、社会规约、道德准则等的载体,是侗族社会不可缺少的具有社会凝聚力的民族符号。     

采用高效液相色谱-串联质谱法检测鲫鱼组织3-甲基喹(噁)啉-2-羧酸残留量

将待测鱼肉和鱼皮匀浆样品经碱水解、液-液萃取后,采用HPLC-TMS方法对其中的3-甲基喹(噁)啉-2-羧酸(MQCA)残留量进行了检测.结果,此方法的最低检测限为1.16μg/kg,市售鲫鱼样品中MQCA的含量低于检测限.结果表明,HPLC-TMC灵敏,易操作,能满足鱼组织内MQCA残留量检测的要求.     

蟾酥对产气肠杆菌抑制作用的方差分析和相关分析

把采自中华大蟾蜍的蟾酥用蒸馏水稀释成4、6、81、0 mg/mL共4种浓度,作为因素A,用LB液体培养基将活化的产气肠杆菌原液按1∶104和1∶105稀释,作为因素B,采用二因子(A和B)方差分析观察了蟾酥对产气肠杆菌抑菌圈直径的影响,并分析了蟾酥浓度与抑菌圈直径之间的相关关系。结果显示,蟾酥浓度与抑菌圈直径之间存在显著正相关(r=0.988~0.997);不同浓度的蟾酥溶液对产气肠杆菌均有抑制作用;且随着蟾酥浓度的升高,抑制作用加强。     

酒后驾车血液呼气中乙醇检测方法评价

回顾了乙醇中毒检测的一些重要事件和发展趋势,对此领域内的一些先驱及其主要贡献略加介绍,并对血-气乙醇检测方法的原理、优缺点作了说明。血液检测方法包括湿化学方法、酶法、气相色谱法,呼气检测方法包括湿化学方法、电化学方法、气相色谱法和红外光谱法。欧洲血液检测方法进行地比较早,且较深入,北美则对呼气检测方法有比较透彻的研究。     

寄生虫谷胱甘肽转移酶的研究进展

谷胱甘肽转移酶(glutathione S-transferase,GST)是由多基因编码、具有多种功能的超基因家族酶,是细胞内转运的"通用"载体蛋白.哺乳动物的GST可调控细胞增殖和死亡信号通路,具有参与运输、新陈代谢和生理反应等的能力.已有研究表明,多种寄生虫的GST参与虫体的生命活动.综述了有关寄生虫GST的研究...     

Criminogenic patterns in the management of Boko Haram’s human displacement situation

This article interrogates the management of the internal displacement caused by the activities of Boko Haram in Nigeria. The study utilizes qualitative methods to explicate the lived realities of internally displaced persons (IDPs) at three IDP camps. It accentuates the invention of criminogenic patterns that have fostered several state crimes in the management of the displacement situation. A series of cyclical patterns is highlighted: these patterns are constituted by and constitutive of the social conditions of the IDPs. The operations of a constellation of institutional and non-institutional actors in the displacement situation has led to (1) hoarding, diversion and theft of relief materials, (2) embezzlement of funds meant for IDPs, (3) use of ghost IDPs, (4) sexual and gender-based violence and (5) human trafficking and other forms of violence. The article concludes that this situation portends grave risks for state efforts to combat Boko Haram, as it may result in renewed grievances against the government.     

The Perception and Reaction of Indonesia to the Belt and Road Initiative and Suggestions for China's Response

Participation,support and understanding of countries along the Belt and Road are requisites for promoting and implementing this major initiative.Indonesia,a major ASEAN economy,is crucial but Indonesia has a limited perception of the B&R initiative.Although its government welcomes it and the ruling coalition cooperates positively,parts of the military and opposition are skeptical of China's intent.The B&R initiative is well-received among the Indonesian Chinese group,while Indonesian academic circles remain cautious and somewhat critical.From a Chinese viewpoint,easing negative or hostile emotions appropriately would be well-timed.China should settle the Natuna issue,adjust its publicity in Indonesia,use diplomacy,and promote Sino-Indonesia cultural exchange and commtnications.Chinese enterprises should focus on project quality and uphold social responsibilities.Short-term goals are reducing Indonesia's opposition and obstruction of B&R,while long-term goals are enhancing the recognition and likeability of the Initiative 's worthwhile plans.     

Female Officers and Community Policing: Examining the Connection between Gender Diversity and Organizational Change

This study aimed to evaluate the temporal relationship between gender diversity and the adoption of community policing. The results from three separate structural equation models suggest that gender diversity is the stronger temporal predictor. The findings highlight the potential importance of gender diversity in organizational change. In theory, increasing the number of female officers may increase organizational agility through the creation of an alternative cultural ethos. More research is needed to understand how gender diversity affects police agencies, as well as how calls to reform the institution of policing affect women in law enforcement.