多权力格局的冲突与协调——以本轮房地产调控为中心所展开

房居事关民生,中央政府已出台一系列政策,仍无法控制房价的飞涨.需求和供给能解释大部分高房价,但仍无法解释为什么中央政策的失效.高房价是一系列主体的行为所导致,政府之间、政府部门间的冲突放纵了房价的上涨.更深刻的原因在于我国政制的不足,权力行使应被制约,但也要使它有效协调运作.     

猪圆环病毒2型感染裸鼠及BALB/c小鼠的研究

用猪圆环病毒2型(PCV2)经腹腔注射BALB/c小鼠及裸鼠各15只,每隔2周1次,共感染3次。BALB/c小鼠初次、再次感染后均未出现明显的临床症状,仅有2只小鼠出现病理变化;从血清中可检测到PCV2核酸及其ORF2抗体;同时淋巴细胞增殖反应显著增强,NK和CTL细胞杀伤率显著升高;CD4+、CD8+、CD3+T淋巴细胞及CD19+B淋巴细胞数量显著减少。裸鼠也未出现明显的临床症状,从血清中可检测到PCV2核酸,但未检测到PCV2 ORF2抗体;除NK细胞杀伤率显著升高外,其余免疫学指标无显著改变。结果表明,BALB/c小鼠比裸鼠对PCV2易感,各项免疫学指标变化与PCV2感染猪一致,但不表现临床症状,仅个别BALB/c小鼠出现病理变化,说明BALB/c小鼠对PCV2不如猪易感。     

A NEW LOOK AT AN OLD ISSUE:

In 1997, the Office of Child Support Enforcement initiated the State Child Access and Visitation (AV) Grant Program, which involves annual awards of $10 million to states to promote the development of programs to alleviate access problems. Telephone interviews with 970 parents who used mediation, parent education, and supervised visitation programs funded by AV grants in nine states revealed that the programs are reaching diverse groups of parents including many low-income, non-White, and unmarried parents who receive no other type of access assistance. The programs also appear to be achieving the major objectives posited for them by the federal government. One-third to one-half of noncustodial parents in every program type reported that parent–child contact increased following program participation, with supervised visitation users who typically had the lowest levels of parent–child contact reporting a significant increase in the number of days of contact. A review of child support records for 173 program users in three states revealed that child support payments increased among participants following program participation, especially for never-married parents who paid a significantly higher proportion of what they owed. These findings are similar to results reported in a five-state study of mediation programs funded by AV grants that was conducted by the Office of the Inspector General. However, both studies have some serious limitations, including low response rates and the absence of a nontreatment comparison group.     

SUPERVISED VISITATION: A CALL FOR A SECOND GENERATION OF RESEARCH

With the divorce rate rising and related child visitation disputes becoming an increasingly difficult issue before the courts, supervised visitation programs have proliferated over the last decade. The literature demonstrates that ongoing contact between children and both parents following separation and/or divorce is important for children's socio‐emotional adjustment and positive child/parent relations. However, there is a paucity of literature demonstrating a relationship between supervised visitation programs and child/parent relationship outcomes. Based on the lack of outcome research the authors argue for a second generation of research regarding intended and unintended consequences of supervised visitation. This article reviews and synthesizes the current literature, highlighting strengths, limitations, significant findings and proposes a critical need for evidence‐based research.     

Umschichtungen im Konzern – keine Änderung der wirtschaftlichen Einflussmöglichkeiten

Keine ?nderung der wirtschaftlichen Einflussm?glichkeiten liegt vor, wenn es zu Anteilsübertragungen oder Umgründungen zwischen konzernverbundenen Gesellschaften kommt, aber sich bei jenen Personen nichts ?ndert, die auf der obersten Ebene den Einfluss ausüben. Derartige Handlungen innerhalb eines Konzernverbunds verwirklichen nicht den Tatbestand des § 12a Abs 3 MRG.     

顶空固相微萃取气相色谱法快速检测尿液中氯胺酮

目的建立快速检测吸毒人员尿液中氯胺酮的顶空固相微萃取(HS/SPME)-GC/NPD的方法。方法样品瓶中加入尿液、氢氧化钠溶液、氯化钠,在95℃下加热搅拌,用聚二甲基硅氧烷SPME萃取头(100μm)顶空萃取20min,气相色谱氮磷检测器检测,外标法定量。结果尿液中氯胺酮浓度在0.2~20.0μg/ml范围内呈现线性关系(r2=0.9965),尿液添加1.0μg氯胺酮,平均回收率102.6%,RSD=3.39%(n=7),检测限1.13ng/ml(S/N=3)。结论建立的方法简单、快速、灵敏、准确,十分适合尿液等生物检材中氯胺酮的快速定性定量分析。     

哈巴罗夫斯克边疆区的旅游业正在迅速崛起

哈巴罗夫斯克边疆区旅游业的特点在于出入境旅游和国内旅游同步发展。优越的地理环境为其面向中国、日本和韩国等相邻国家发展入境游创造了良好的条件，也为其发展地区旅游经济打下了坚实的基础。     

马克思主义与时俱进的最新成果 --学习江泽民"5·31"重要讲话

江泽民同志“5·31”重要讲话.充分阐释了“三个代表”重要思想的时代价值、科学内涵和实践意义,是马克思主义与时俱进的最新理论成果。讲话深刻揭示了时代性和实践性的统一是马克思主义与时俱进的基本要素,“三个代表”是全球化和市场化背景中发展着的马克思主义,更是我们党完成执政兴国两大历史性任务的根本要求。贯彻“三个代表”重要思想.必将加速当代中国的文明——物质文明、精神文明和政治文明——的有机联系、协调发展、整体推进的历史进步趋势。