用丙硫苯咪唑检测羊线虫抗药性的体外虫卵孵化试验

为探讨用丙硫苯咪唑进行体外虫卵孵化试验检测羊线虫对苯并咪唑类药物的抗药性,对23个羊场的25份田间样品用丙硫苯咪唑和噻苯咪唑进行了虫卵孵化试验并与先前减卵试验(faecal egg count re-duction test,FECRT)的结果比较。结果表明,25份样品中,丙硫苯咪唑和噻苯咪唑对受检虫卵的半数致死量(LD50)均值分别为0.050 1和0.054 0μg/mL,差异不显著。FECRT检测有抗药性的4个羊场,75%的样品对丙硫苯咪唑和噻苯咪唑的LD50均值均在0.1μg/mL以上,只有1个羊场的的LD50值分别为0.068 9μg/mL(丙硫苯咪唑)和0.071 2μg/mL(噻苯咪唑)。检测为可疑的2个羊场,其样品的LD50值为0.04~0.07μg/mL;FECRT检测敏感的蠕虫群体的LD50均在0.04μg/mL以下。此外,丙硫苯咪唑用纯的二甲基亚砜溶解和稀释后于4℃保存7 d,LD50值变化不大,提示药效无明显下降,而保存14 d后药效有下降趋势。     

气功对经络系统的平衡调节作用

The unbalance levels (UL) and the deviation levels (DL)of the 72 cases'' skin resistance for the three Yin and three Yang meridians of upper limbs were examined and analysed simulaneously by jinluo unbalance instrument ( JUI). The results as follows, after Qigong, variety of conscious symptoms of the cases take a evident turn for the improvement. The UL of Pericardium Meridian ( P相似文献   

柔嫩艾美球虫对复方抗球虫制剂抗药性的诱导

柔嫩艾美球虫(Eimeriatenella)敏感株在复方抗球虫制剂剂量递增的情况下,经过10次传代,诱导出其对复方抗球虫制剂的抗药性;经过8次传代,诱导出柔嫩艾美球虫抗氯嗪苯乙氰株对复方抗球虫制剂的抗药性。与单一用药相比,柔嫩艾美球虫对复方抗球虫制剂的抗药性产生较慢,复方抗球虫制剂控制柔嫩艾美球虫敏感株的效果比控制抗氯嗪苯乙氰株的效果要好。     

鸡毒霉形体耐氟喹诺酮类gyrA基因的突变特征

按常规方法提取鸡毒霉形体 3株临床分离株和参考株 (S6 - 10 )的基因组DNA ,扩增各菌株DNA旋转酶gyrA基因片段 ,并克隆、测序 ,用DNAsis软件对测序结果进行分析。结果表明 ,HS1、HS2株均在GyrA亚基第 87位发生了Glu87→Gly氨基酸取代 ,除此之外 ,耐药水平较高的HS2株还在第 83位发生了Ser83→Ile氨基酸取代 ,而FL分离株虽对氟喹诺酮类药物产生了低水平耐药 ,但在GyrA亚基未发生任何氨基酸突变。     

公共议题下的权力 “抵抗”逻辑——— “彭水诗案”中舆论监督与公权力之间的博弈分析简

近年来,公共舆论对公权力的监督日益呈现出多样化、博弈化的复杂态势,通过彭水诗案的分析表明,媒体舆论经过“公共议题”设置后形成了层级推进、多维质疑的追问方式,但公权力在这种强大的舆论监督压力面前,则往往会采取迂回“死扛”、暗渡陈仓的回应方式和策略,其中演绎着公权力的“抵抗”与“就范”逻辑,而这也是当下加快法治国家建设进程所需要认真反思和应对的。     

Hezbollah and the framing of resistance

Abstract

Hezbollah is a holistic network whose social, political, military and cultural dimensions are all parts of a discourse of resistance. Conducting a qualitative frame analysis of speeches by Hezbollah’s General Secretary Nasrallah, supported by interviews with Hezbollah leadership privy to its ideology, this study analyses the construction of muqawama (resistance). It argues that resistance is a complex social phenomenon, which can be manifested, for example, in the differences in how resistance is framed in varying contexts, often addressing different audiences. However, three unifying themes emerged from the frame analysis: diversity of resistance, normalisation of resistance and social dimensions of resistance.     

“积极同意”的是与非--关于美国性侵认定标准争议的一个综述

积极同意是判断性侵的一个标准,强调沉默和缺乏抵抗不能被视作对性行为的同意,只有口头上或者行为上表达的同意才构成有效的同意,而未经同意的性行为、性接触即构成强奸或者其他性侵犯。这个标准在美国的刑事法领域并没有获得广泛接受,却在教育法领域被大多数大学作为判断性侵的标准。支持者认为这种标准最大限度地维护了女性的性自主权,彻底抛弃了性侵判断标准中的暴力和反抗要件。反对者或者认为"同意"概念本身就是有问题的,或者认为积极同意标准固化了男性担负责任、女性无助被动的刻板印象。不同女权主义流派对积极同意表达了多元丰富的观点,深化了对这一问题的认识。     

Intimidation and Street Gangs: Understanding the Response of Victims and Bystanders to Perceived Gang Violence

While research routinely examines the influence of gang membership on the quantity of violent crime involvement, less is known about the influence of gang violence on the situational characteristics of violent victimization. Felson’s discussion of street gangs highlights the possible functional role gang membership plays in the commission of violent crime; what he terms “the street gang strategy.” This study examines the functionality of gang membership during violent crimes by investigating the influence of perceived gang membership on the likelihood of victim resistance, bystander intervention, and police reporting using data from the National Crime Victimization Survey. Findings offer little support for the idea that gang members intimidate victims and bystanders to the extent that their behavior during and after violence differs systematically from responses resulting from non‐gang violence. Results are discussed in terms of their policy relevance and implications for future research.     

利用车辆动力性原理计算事故车车速误差的探究

目的高速公路上追尾事故时有发生,事故责任判定常要求鉴定被追尾车的车速,尤其对超载货车的车速鉴定。方法本文利用车辆动力性与车速的关系对发生追尾事故的事故车车速计算问题进行了研究。结果应用此法明确了功率平衡方程中主要参数的不同取值对最终车速计算误差的不同影响程度。结论研究表明,滚动阻力系数与坡度两者的取值误差对车速计算结果影响明显,应予高度重视。