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。     

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。     

锦灯笼和枸杞子水提液对乳酸菌的促生作用

目的 研究锦灯笼和枸杞子对乳酸菌的促生作用,为微生态制剂的开发及中药合理使用提供理论依据。方法 将不同浓度的锦灯笼和枸杞子水提液添加到乳酸菌的体外生长培养基中,37 ℃培养48 h,活菌计数。结果 2%和5%的锦灯笼以及0.5%和1%的枸杞子对乳酸菌生长具有明显的促进作用（P<0.01）,5%的锦灯笼促进乳酸菌生长的效果最好,菌数分别是对照组的1.6倍左右,但随着药物浓度的增加,两种药物促乳酸菌生长的作用显著减弱。结论 一定浓度的锦灯笼和枸杞子水提液能够促进乳酸菌的生长。     

基于板蓝根中（R,S）-告伊春含量研究板蓝根加工方法

目的 研究不同干燥方法及软化切制方法对板蓝根中（R,S）-告伊春含量的影响,从而建立提升黑龙江产板蓝根质量的加工方法。方法 采用高效液相色谱法对板蓝根中（R,S）-告伊春含量进行测定,比较晒干与烘干板蓝根药材的（R,S）-告伊春含量差异,比较不同投料形式板蓝根颗粒和饮片中（R,S）-告伊春含量差异。结果 60 ℃烘干后的板蓝根药材中（R,S）-告伊春含量高于晒干的板蓝根药材,且能明显缩短板蓝根药材的产地干燥时间;经软化切制的板蓝根饮片中（R,S）-告伊春含量明显高于板蓝根粗颗粒。结论 在板蓝根产地加工过程中,可用烘干法代替晒干法;以板蓝根药材作为中成药投料,建议采用软化切制后的板蓝根饮片。     

化痰通瘀解毒方提取物对人胃癌细胞SGC-7901侵袭转移能力的影响

目的 观察化痰通瘀解毒方提取物对人胃癌细胞株SGC-7901侵袭转移能力的影响。方法 10、20、40 μg/mL化痰通瘀解毒方提取物分别干预人胃癌细胞SGC-7901 24 h后,采用Transwell小室法检测人胃癌细胞SGC-7901的侵袭、迁移能力,分别采用酶联免疫吸附试验和Western blot法检测SGC-7901细胞中基质金属蛋白酶9（matrix metalloproteinase 9, MMP-9）和E-钙黏蛋白（E-cadherin）的表达水平。结果 4组SGC-7901的侵袭细胞数和迁移细胞数以及E-cadherin和MMP-9表达水平比较,差异均具有统计学意义（P＜0.05）,呈现明显的剂量依赖性,以高剂量化痰解毒方提取物的效应最明显。结论 化痰解毒方可抑制人胃癌细胞SGC-7901侵袭和迁移能力,其作用机制可能与上调E-cadherin表达,下调MMP-9的表达有关。     

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.