刍议公安机关行政执法中的自由裁量权

行政自由裁量权是现代行政的必然产物,是公安机关行政执法权力的重要组成部分,但由于自由裁量权本身所固有的"自由"属性使其在公安行政执法中出现被滥用的现象。为防止自由裁量权被滥用,除了要求执法人员在适用自由裁量权时应遵循一定的原则外,关键是采取有效措施对适用自由裁量权的行为进行监督和控制。     

Characterization and haplotype analysis of 10 novel Y-STR loci in Chinese Han population

In this study, we analyzed allelic sequences of 10 novel Y-specific STR loci, DYS454, DYS510, DYS513, DYS520, DYS542, DYS544, DYS552, DYS561, DYS587 and DYS593, surveyed the distribution of haplotypes in a Chinese Han population. Extracted DNA was amplified with PCR, followed by a horizontal non-denaturing polyacrylamide gel electrophoresis with discontinuous buffer system. Purified alleles were sequenced on DNA sequencer (ABI Model 377) to verify the number of motif repeats. The number of alleles observed at each locus ranged from 3 to 8, yielding 102 haplotypes in 103 unrelated males samples. The allele diversity values for each locus ranged from 0.2099 (DYS544) to 0.7523 (DYS552). The haplotype diversity using all these loci was 0.9998. Our study revealed that they were valuable Y-specific markers for forensic applications.     

Sex differences in suicidal ideation in a community sample from China

In a large sample of over 4,000 Chinese residents in the Wuling and Sino-Vietnamese border regions of China, females had a higher incidence of ever wishing that they were dead. This sex difference was found regardless of marital status, age, and occupation.