青年流动人口教育健康效应及群体差异研究

在“健康中国”战略背景下,如何更充分地发挥青年流动人口的健康人力资本效用,值得关注。本研究基于2014年流动人口动态监测调查社会融合专题调查数据,采用Logistic回归和OLS回归方法,就受教育程度对青年流动人口不同健康指标的影响进行了分析。研究表明：青年流动人口受教育程度由初中向高中提升能够促进正向健康自评,但高等教育加剧了健康随时间推移而变差的感知;女性、农业户籍、80后青年流动人口的健康状况更明显地受到受教育程度的影响。研究建议：通过缩小城乡教育质量差距、加强多元化心理健康支持、提高流动人口社会融合水平等举措,提升青年流动人口的人力资本质量,促进青年流动人口全面发展。     

流动人群未成年人犯罪防控机制的构建

由于升学、就业、社会保障等方面存在的差别待遇,户籍在社会群体的分野中发挥重要作用。在犯罪学中将流动人群作为研究犯罪成因和防控的特定社会群体,有着现实的意义。未成年人犯罪问题日益为社会所关注,而流动人群中的未成年人受到所处环境等因素的影响,犯罪呈高发、上升态势,严重影响未成年人的身心健康和社会稳定。除了从犯罪遏制力、社区矫正等方面探讨流动人群未成年人犯罪的预防与控制外,我们还应结合流动人群未成年人的特殊性,采取必要的辅助手段。     

银发浪潮下的中国老年人力资源开发

人口老龄化是中国当前及今后很长时期都必须面临的重要问题,充分认识到老年人力资源开发的重要意义,挖掘老年人口红利将成为经济社会发展的新动力。中国拥有规模庞大的老年人力资源,但老年人口实际就业率并不高。影响老年人力资源开发和利用的因素既有社会观念、强制的退休年龄制度等宏观因素,也有老年人的就业意愿、健康状况、受教育程度等微观因素。促进老年人就业,实现老有所为是中国积极应对人口老龄化的重要举措。研究提出如下政策建议:转变社会观念,营造老年人力资源价值观念;重点开发低龄健康老年人力资源;加强对老年人的教育和培训;重视对老年就业的法律保护;改革现有的强制退休年龄制度,实行弹性退休制度。     

Crime: The amount and disparity of sentencing – A comparison of corporate and occupational white collar criminals

Research carried out previously, aimed at examining differences in the length of the sentencing and type of offence, have typically compared white collar and street criminality. The main aim of the current study is to examine the differences in sentence length for white collar occupational and corporate offenders from street crime offenses and to identify which factors eventually could explain such differences. The crime amount was smaller in occupational convictions despite the fact that the average crime amount was significantly less in this group compared to the crime amount among corporate criminals. Socioeconomic status and company size were not found to be associated with the length of the sentence. We discuss whether the difference in length of the sentence could be explained by the fact that occupational crime is committed for the criminals' own purposes or enrichment, while this is often not the case among corporate criminals.     

Genetic investigation of Chinese she ethnic based on autosomal STRs and X-STRs

The She ethnic is a large minority in China with approximately 700,000 individuals. For more than one thousand years, they mainly resided in Zhejiang and Fujian provinces. To obtain a better understanding of the genetic background of She, we investigate 21 autosomal STRs (A-STRs) and 16 X-STRs in 296 unrelated healthy individuals from Zhejiang She population. Allele frequencies and forensic parameters prove these markers are useful for forensic application. We also investigate the genetic background with the two types of markers. Nei genetic distances between She and Eastern Han population are always the lowest, regardless of the markers used for analysis. Although the tested STRs are located on different chromosomes with different inheritance laws, A-STRs and X-STRs provided in general congruent phylogenetic signal and similar cluster among compared groups. These results demonstrated that geographic isolation and interactions play significant roles in differentiation of genetic constitution of ethnic groups.     

Haplotype data for the 12 RM Y-STR loci in a Syrian population

Researches with RM Y-STRs have shown that these loci provide substantially higher haplotype diversity and haplotype discrimination capacity in worldwide populations when compared with the YSTRs commonly used in genetic forensics. The aim of this study was to develop an allelic frequency database for the Syrian population living in Turkey in order to obtain population data of 12 RM Y-STRs. A total of 80 unrelated males from the Syrian population living in Turkey were typed with 12 RM Y-STRs loci: DYF387S1, DYF399S1, DYF404S1, DYS449, DYS518, DYS526a/b, DYS547, DYS570, DYS576, DYS612, DYS626 and DYS627. The highest GD was observed for the locus DYF399S1 (0.91), followed by loci DYS449 (0.86) and DYS518 (0.83). RM Y-STR haplotype diversity was found 1.00 in these samples. Based on the results of this study, the RM YSTR loci showed remarkable haplotype resolution power in the Syrian population, high genetic diversity and, therefore, demonstrating their usefulness in forensic identification cases.     

Development of a new 17 Y-STRs system using fluorescent-labelled universal primers and its application in Shanxi population in China

Y-chromosomal short tandem repeats (Y-STRs) polymorphisms are useful in forensic identification, population genetics and constructing of human structures. Increasing the number of Y-STRs and their polymorphism will drastically narrow down the matching number of genealogy populations or pedigrees when searching against a forensic DNA databank. In this study, we develop a system containing 17 complementary Y-STRs that are compatible and reinforce the current commercially available Y-STR kits. This system was constructed by multiplex PCR with expected size of 126bp-400bp using home-made universal primers labeled by different fluorescence (DYS715, DYS709, DYS716, DYS713, DYS607, DYS718, DYS723, DYS708, DYS714, DYS712, DYS717, DYS721, DYS605, DYS719, DYS726, DYS598 and DYS722). The genetic data were obtained from 394 individuals in Shanxi province, China. The Y-STR system has 131 haplotypes and high discrimination power is 1. In conclusion, our study provides a robust, sensitive and cost-effective genotyping method for human identification, which is beneficial for narrowing the searching scope when applying to the genealogy searching with Y-STR DNA databank.     

Genetic variation of high-altitude Ecuadorian population using autosomal STR markers

Fifteen autosomal STRs were analyze in order to elucidate the differences between low and high land Ecuadorian population. Seven Ecuadorian geographic areas (Tisaleo-Mocha, Cañar, Quito, Rocafuerte, Santa Rosa, Guayaquil and Lago Agrio) from different altitude were selected for the study. After the analysis, little genetic distances were observed between all cities, the more distant cities (F_ST = 0.02354) were Rocafuerte at an elevation of 17 m.a.s.l. and Quito at 2850 m.a.s.l. and the similar cities (F_ST = 0.00033) were Rocafuerte (17 m.a.s.l.) and Santa Rosa (10 m.a.s.l). In conclusion, there is not a great genetic distance in the 15 STRs reported in high and low land Ecuadorian population, therefore previously reported frequencies could been used in identification and paternity cases under analysis.     

日本开发老年人力资源的经验及启示

在人口老龄化不断加剧的情况之下,社会发展将更多地依赖于老年人的积极参与。而且随着长寿社会的到来,老年人的参与愿望和参与能力都在提升。日本是世界上人口老龄化程度最高的国家,已进入人口减少和超老龄社会。人口下降和老龄化将带来劳动力减少问题,对日本整个社会的均衡和可持续发展产生严重影响。为了应对劳动力不足问题,日本不仅修改《老年人就业稳定法》逐渐延长退休年龄,保障老年人继续工作,而且开展老年志愿者活动积极为退休的老年人创造再就业的环境。     

Application of Enhanced Point Estimators to a Sample of In Vivo CT‐derived Facial Soft Tissue Thicknesses

Facial approximations based on facial soft tissue depth measurement tables often utilize the arithmetic mean as a central tendency estimator. Stephan et al. (J Forensic Sci 2013;58:1439) suggest that the shorth and 75‐shormax statistics are better suited to describe the central tendency of non‐normal soft tissue depth data, while also accommodating normal distributions. The shorth, 75‐shormax, arithmetic mean, and other central tendency estimators were evaluated using a CT ‐derived facial soft tissue depth dataset. Differences between arithmetic mean and shorth mean for the tissue depths examined ranged from 0 mm to +2.3 mm (average 0.6 mm). Differences between the arithmetic mean plus one standard deviation (to approximate the same data points covered by the 75‐shormax) and 75‐shormax values ranged from ?0.8 mm to +0.7 mm (average 0.2 mm). The results of this research suggest that few practical differences exist across the central tendency point estimators for the evaluated soft tissue depth dataset.