美国危机管理系统的发展及启示

美国成立了以预防、处理非自然的危机(恐怖主义)为主要目标的国土安全部,标志着美国危机管理已经结束了单一的、分散管理阶段,成为面向全方位的、以国土安全为目的的完整系统。     

GC／MS法检验杀扑磷

杀扑磷(methidathion),又名甲噻硫磷,灭达松,商品名称:速扑杀(Supracide),化学名称:5-2,3一二氢-5-甲氧基-2-氧代-1,3,4-硫二氮卓()-3基甲基O,O-二甲基二硫代磷酸酯,分子式:C6H11N2O4PS3,分子量:302,结构式见图1。理化性质:纯品为无色结晶,20℃时比重1.495,熔点39℃～40℃,蒸气压186.6×10-6Pa,20℃时溶解度水中250mg/L,丙酮中690g/L,乙醇中260g/L,环已酮中850g/L,二甲苯中600g/L。制剂由有效成分和稳定剂、乳化剂、溶剂及染料组成,外观为深蓝色液体,比重1.04～1.08,闪点24℃～28℃。据中国农药毒性分级标准,杀扑磷是一种广谱、高毒的…     

丰田零库存管理对我国企业库存管理优化的启示

零库存管理对丰田公司经营的成功发挥了重要作用,对我国现代化企业经营也具有较强的借鉴意义.鉴于我国企业对库存管理存在的认识误区,基于对丰田零库存管理的内涵及应用效果的分析,提出我国企业应学习丰田库存管理的先进经验,避免对零库存管理的认识误区,进一步转变观念、建立新型库存管理模式的观点,并在此基础上针对我国制造业企业在借鉴丰田零库存管理方面提出对策建议.     

UPLC-MS/MS法同时检测全血中16种除草剂

目的建立全血中16种除草剂的超高效液相色谱-串联质谱(UPLC-MS/MS)同时检测方法,为除草剂中毒案事件及其他刑事案件血液中该16种除草剂的检验鉴定提供依据。方法取200μL的血液,加入800μL乙腈-水(体积比80/20),进行蛋白沉淀后,采用Acquity BEH C18(2.1mm×100mm,1.7μm)色谱柱,以水(5mmol/L的甲酸铵,0.1%的甲酸)-乙腈为流动相进行梯度洗脱,采用电喷雾离子源(ESI)、多反应监测(MRM)正离子模式对16种化合物进行检测。结果在1~200ng/mL范围内线性关系良好,R2均大于0.996;基质效应(ME%)为85.2%~104.4%,相对标准偏差(RSD%)为0.72%~4.84%;仪器检出限(IDLs)为0.2~2 ng/mL(信噪比S/N≥3),方法检出限(MDLs)为0.5~3ng/mL(信噪比S/N≥3),最低定量限(LOQs)为1~7ng/mL(信噪比S/N≥10)。结论本实验建立的全血中16种除草剂同时检验方法,前处理简便快捷、回收率高、精密度好、方法检出限低,可作为该16种除草剂中(投)毒案件的检验方法。     

Racial Disparities in Service Referrals for Families in the Child Welfare System

Among families in the child welfare system, family reunification depends largely upon the services to which families are referred. This study examines whether race/ethnicity influences the number and types of services to which families are referred. Findings suggest that compared to African American families, Hispanic families were more often referred to psychosocial services (e.g., mental health) than basic needs (e.g., housing). These findings indicate a need to reduce service referral disparities between ethnic groups.     

Transportation Access,Rental Vouchers,and Neighborhood Satisfaction: Evidence From the Moving to Opportunity Experiment

The Housing Choice Voucher (HCV) program is designed in part to expand the neighborhood choices of assisted households, thereby enabling assisted households to find a living environment that simultaneously meets their housing and neighborhood preferences. While several studies have examined the impact of rental subsidies on neighborhood satisfaction, few have examined whether access to adequate transportation enables HCV recipients to locate housing in more desirable locations. This article relies on data from the Moving to Opportunity experiment to examine the impact of transportation access, rental housing vouchers, and geographic constraints on neighborhood satisfaction. We find that access to both vehicles and public transit positively influences neighborhood satisfaction, and the influence of vehicle access varies with transit proximity. These findings point to the importance of transportation in helping low-income assisted renter households locate housing in more desirable neighborhoods.     

Household composition and family structures of Ukrainian Cossacks in the second half of the eighteenth century

One of the main problems faced by social historians of the Cossack Hetmanate (Cossacks' autonomous territory situated on the Left Bank of the Dnieper River) is a poor knowledge of population issues. This article therefore focuses on the history of the family and households in eighteenth-century Ukraine. Unlike the historiography of Western Europe, where active research in this field started in the 1960s, contemporary Ukrainian historiography includes only a few studies dedicated to these issues. Recently renewed interest in population issues is due to the widening scope of historical research and to changes in the methodological paradigm that started in the twenty-first century. Historical research of the Ukrainian family and population is thus in its infancy and reconsidering these aspects is crucial for a global scholarship.     

‘Donors are not interested in reality’: the interplay between international donors and local NGOs in Kyrgyzstan's HIV/AIDS sector

This article explores the interplay between international donors and local NGOs in Kyrgyzstan's HIV/AIDS sector. It argues that donors have transposed ready-made policies without sufficient consideration of the local context and that NGOs have responded strategically, adapting their proposals and reports to the expectations of donors. This complex interplay has resulted in unintended consequences that have undermined an effective response to the HIV/AIDS epidemic. It has given rise to ‘virtual realities’ detached from developments on the ground. The funding system has also led to corruption and misappropriation of funds and the failure of NGOs to become sustainable. Largely bypassing the state in the allocation of funds, international donors have also undermined an already weak state.     

Fatal Fentanyl Patch Misuse in a Hospitalized Patient with a Postmortem Increase in Fentanyl Blood Concentration

Opioid‐related mortality happens, even in healthcare settings. We describe serial postmortem fentanyl blood concentrations in a hospital inpatient who fatally abused transdermal fentanyl. This is a single‐patient case report. A 42‐year‐old man with lymphoma was started on transdermal fentanyl therapy while hospitalized for chronic abdominal pain. The patient was last seen awake 1.3 h prior to being found apneic and cyanotic. During the resuscitation attempt, a small square‐shaped film was removed from the patient's oropharynx. Femoral blood was collected 0.5 and 2 h postmortem, and the measured fentanyl concentration increased from 1.6 to 14 ng/mL. Study limitations include potential laboratory or collection errors and missing data. (i) Providers must be vigilant for signs of fentanyl patch abuse. (ii) Postmortem blood concentrations are not static postmortem, likely secondary to decreasing pH, increased aqueous solubility, and tissue redistribution, and are therefore unlikely to accurately represent antemortem blood concentrations.     

Congressional Activism in the Foreign Policy Arena: A Case Study of the 1994 Rwandan Genocide

This article analyzes congressional activism during an international crisis. Using the 1994 Rwandan genocide as a case, this study explores executive–congressional relations during a time when immediate policy responses are needed. A content analysis of policy statements made during committees, on the House floor, and on the Senate floor is used to investigate the specific policy ideas proposed by members of Congress. The models presented pay particular attention to the actions of Congressional Black Caucus (CBC) members, in relation to other more common predictors of congressional activism. In addition to the results for CBC members, other conclusions indicate that foreign policy leaders in Congress are international affairs policy experts without serious concerns of being defeated in their next election.