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21.
基尼系数与流动人口犯罪   总被引:6,自引:0,他引:6  
伴随着中国加入世贸组织和农业产业结构的调整 ,我国大批农村“剩余劳动力”形成了人类历史上规模最大的“移民潮”。伴随这一进程 ,流动人口犯罪问题日渐突显 ,运用基尼系数这一经济学指标研究流动人口犯罪 ,从经济学的角度探讨原因 ,并以其为依据 ,提出流动人口管理的相关对策  相似文献   
22.
对目前我国高校人才培养结构现状及高校人才培养结构与产业人才需求的匹配状况做了比较深入的定量分析,并通过对分行业(部门)人才就业弹性系数和人才就业产出弹性系数的计算,结果显示出目前高校大学生就业潜力较大与较小的专业,这应引起有关部门和社会各界注意.  相似文献   
23.
    
Intraobserver error (INTRA‐OE) is the difference between repeated measurements of the same variable made by the same observer. The objective of this work was to evaluate INTRA‐OE from 3D landmarks registered with a Microscribe, in different datasets: (A) the 3D coordinates, (B) linear measurements calculated from A, and (C) the six‐first principal component axes. INTRA‐OE was analyzed by digitizing 42 landmarks from 23 skulls in three events two weeks apart from each other. Systematic error was tested through repeated measures ANOVA (ANOVA‐RM), while random error through intraclass correlation coefficient. Results showed that the largest differences between the three observations were found in the first dataset. Some anatomical points like nasion, ectoconchion, temporosphenoparietal, asterion, and temporomandibular presented the highest INTRA‐OE. In the second dataset, local distances had higher INTRA‐OE than global distances while the third dataset showed the lowest INTRA‐OE.  相似文献   
24.
    
Decentralization can inadvertently lead to local fiscal disparity. One type of intergovernmental fiscal transfers, the general-purpose grant, can help equalize local fiscal imbalances. This article examines the extent to which the general-purpose grant systems in Indonesia and Thailand help mitigate local fiscal disparity. The findings show that the general-purpose grant system in Thailand does not effectively address disparities in local fiscal conditions. Localities with more own-source revenues and higher per capita income receive more general-purpose grants than those with weak fiscal capacity. In contrast, Indonesia’s general-purpose grant allocation system provides more resources for economically disadvantaged and conflict-ridden provinces.  相似文献   
25.
  总被引:1,自引:0,他引:1  
When scientists use DNA evidence in court, coancestry effects such as population structure and relatedness are usually ignored. In paternity cases, only if a particular man has the child's paternal allele at a certain locus, can he not be excluded in the paternity dispute. However, it is certainly true that close relatives will be far more likely to have the child's paternal allele than will random members of the reference population. In particular, the probability that the true father's brother has the paternal allele is very much greater than that for any other relationship. In this paper, the authors describe a method for inference in a case where the true father may be a relative of the alleged father. This paper also reports that most current methods overstate the probability that the alleged father is the father.  相似文献   
26.
The purpose of this study was to assess the viability of using slip risk (as quantified during human subject walking trials) to create a reference standard against which tribometer readings could be compared. First, human subjects (N=84) were used to rank objectively the slipperiness of three different surfaces with and without a contaminant (six conditions). Second, nine tribometers were used to independently measure and rank surface slipperiness for all six conditions. The slipperiness ranking determined from the walking trials was considered the reference against which the tribometer measurements were compared. Our results revealed that only two of the nine tribometers tested (Tortus II and Mark III) met our compliance criteria by both correctly ranking all six conditions and differentiating between surfaces of differing degrees of slipperiness. These findings reinforce the need for objective criteria to ascertain which tribometers effectively evaluate floor slipperiness and a pedestrian's risk of slipping.  相似文献   
27.
尽管侦查冒险在侦查实践中有产生风险的现实可能性,但是其无疑在侦查破案中发挥了巨大的作用。只有充分分析侦查过程中风险的来源,因源施策,从多方面对其进行规制,尽量减低侦查中的风险系数,才能将侦查冒险引向一个健康发展的方向,更好的为侦查服务。  相似文献   
28.
基于重心模型与泰勒系数的陕西省空间差异   总被引:6,自引:0,他引:6  
文章通过重心模型以及泰勒系数对陕西省1989—2006年区域增长格局与地区差距进行了实证分析。分析结果表明,国家西部大开发战略实施以后陕北地区增速明显加快,区域增长重心持续向东北转移;通过泰勒系数及其分解的演变显示,三大地区间差距持续不断扩大,并且地区间差距的扩大快于总体经济差距的扩大。地带内的差距一直是影响陕西区域差距的主要影响力量,但是各地带内部地区经济差距在1995年之后呈现不同的特征。通过分析我们也注意到在1999—2006年陕北地区迅速崛起的同时,伴随区域增长格局“热点”的转移。热点区域内的地区差距会存在一个缩小的趋势,但是局部实证的结论能否适用于更大的范围区域内还需要进一步的检验。  相似文献   
29.
在我国体制转型过程中,出现了一个新的群体——一城市低收入群体。研究这些低收入群体的特征对我国政治经济的健康稳步发展具有一定的现实意义。本文从区域性、阶段性等六方面详尽论述了城市低收入群体的经济特征。  相似文献   
30.
泥沙恢复饱和系数是泥沙数学模型中一个非常重要的参数,其取值合理与否将直接关系到利用泥沙数学模型进行河床演变及相关研究的成败.基于三峡水库蓄水后长江中游荆江河段的实测水沙资料,以本河段三峡水库蓄水前多年平均输沙水平作为泥沙输移方程中的挟沙能力,对水库下游非均匀沙恢复饱和系数进行了率定与分析,并在总结其规律的同时从多个方面对率定结果的合理性进行了讨论.研究结果表明,水库下游非均匀沙恢复饱和系数的数量级一般可达10-3~10-1,并且一般随着泥沙粒径的增大而减小,随着河床冲刷历时的增加和床沙粗化程度的提高而呈递减的趋势.  相似文献   
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