应用气相色谱电子捕获检测器检测生物体内拟除虫菊酯杀虫剂

本文研究了一种同时测定生物样品中二氯苯醚菊酯、氯氰菊酯、杀火菊酯、溴氰菊酯的方法,并详细介绍了试管提取净化的过程。在安装电子捕获检测器的气相色谱仪上,选择不同极性的色谱柱和优选操作参数,能使上述4种杀虫剂达到基线分离,并在20～25分钟内同时完成分析。添加生物样品肝、胃,脑、血中的回收率达到70～90％;变异系数在±0.03～0.08范围。应用本文建立的方法,对中毒兔(溴氰菊酯和杀灭菊酯)各脏器均检出了原体杀虫剂,并成功地运用于一些法庭中毒案件的鉴定。     

Correlation of paternity index with probability of exclusion and efficiency criteria of genetic markers for parternity testing

The statistical correlation between the chance of paternity exclusion and paternity index is explored to derive a new criterion of judging the efficiency of an array of genetic determinations for parentage diagnosis. The theoretical basis is illustrated with allele frequency data on genetic markers used in a paternity testing protocol to examine the possible effects of changing the genetic systems on the prospect of identifying fathers by genetic markers.     

“一边倒”外交战略的得失评析

"一边倒"是新中国成立后直至50年代指导我国对外交往活动的大政方针.这一外交战略的实施对改善我国的国际生存空间,粉碎以美国为首的帝国主义封锁、遏制、禁运的阴谋,为新中国政权的巩固、国民经济的恢复和发展具有重大的历史意义.由于这一战略是特定历史条件下的产物,难免存在一些弊端.     

现代心理学与企业人职匹配的研究

现代社会的激烈竞争和种种挑战,实质上是知 识和智力的竞争,也就是人才的竞争。所谓“得人才 者,得天下”,准确有效地挖掘和使用人才,实现人职 匹配,已成为企业生存和发展的关键因素。然而,目 前在许多企业中,由于受传统观念的影响、管理体制 的束缚、落后考评方法的限     

Y chromosome STR haplotypes and allele frequencies in Illinois Caucasian, African American, and Hispanic males

POPULATION: Population: Illinois Caucasian ( n =117), Illinois African American ( n =218), and Illinois Hispanic ( n =68).     

日本“政治大国”走向与自主防卫

进入20世纪80年代以后,作为经济强国的日本已经不再满足于“经济大国政治小国”的地位,历届内阁开始要求与经济大国地位相适应的政治大国地位。日本政府在寻求实现政治大国目标的过程中,主要选择了以军事领域作为突破口,以成为军事大国带动政治大国目标的实现。具体体现在强化日美同盟、建立和完善有事法制、保持自主、高效的自卫力量与积极参与联合国维和行动四个方面。     

Protection and Dignity in Johannesburg: Shortcomings of South Africa's Urban Refugee Policy

Since the end of apartheid, South African cities have becomedestinations for refugees and asylum seekers from across Africa.In line with its constitutional commitments to human rightsand dignity, South Africa has enacted a refugee policy intendedto maximize freedom and protection by promoting refugees' temporaryintegration into local communities. In doing so, the law guaranteesfreedom of movement, access to many social services, and rightsto compete in labour and housing markets. This article arguesthat because refugees and asylum seekers are effectively unableto convert these legal entitlements into effective protection,South Africa has failed to meet its domestic and internationalobligations. This argument draws particular attention to institutionalfailures in determining refugee status and issuing recognizableidentity documents; denial of essential social services; andabuse at the hands of law enforcement agents. It concludes bysuggesting a positive obligation for the state to counter thefull range of obstacles that prevent asylum seekers and refugeesfrom securing effective protection.     

Diabetes mellitus and hypopituitarism

A 38-year-old diabetic woman developed hyponatraemia and fatal non-ketotic coma after elective cholecystectomy. At the autopsy, it was revealed that the immediate cause of death was cerebral oedema with secondary pontine haemorrhage. The cerebral oedema was associated with severe hyponatraemia and atrophy of the endocrine organs, including the adrenal glands. Biochemical analysis of serum taken immediately before death indicated that the primary defect was pituitary insufficiency, a recognised but rare complication of diabetes.     

劳动者知情权的法律思考

知情权是指公民知悉、获取信息的自由与权利 ,它是指人们有权了解他应该知道的事情。它包括的范围很广 ,如对有关的个人信息 ,对社会出现的新鲜事物 ,对国家的政治、经济发展状况等都有了解的权利 ,劳动者的知情权也是其内容之一。应尽最大限度地保护弱者 ,给予劳动者较多的知情权 ,以便实现其劳动权。知情权的行使要有限度。