水牛原生殖细胞核移植的研究

以水牛原生殖细胞(PGCs)为核供体,成熟水牛卵母细胞为受体,采用电融合法和胞质内直接注核法对水牛PGCs的核移植进行了研究.从水牛胎儿的生殖嵴或生殖腺分离得到PGCs,在胎儿成纤维细胞饲养层上传代培养后,进行核移植.结果显示,当采用电融合法时,PGCs核移植的融合率、分裂率、囊胚率和总囊胚率均显著高于胎儿成纤维细胞(P＜0.05);当采用直接注核法进行核移植时,PGCs的核移植囊胚率显著高于胎儿成纤维细胞(P＜0.05),但分裂率差异不显著(P＞0.05).结果表明,水牛PGCs细胞是理想的核移植供体细胞.     

The legal role of medical professionals in decisions to withhold or withdraw life-sustaining treatment: part 1 (New South Wales)

This is the first article in a series of three that examines the legal role of medical professionals in decisions to withhold or withdraw life-sustaining treatment from adults who lack capacity. This article considers the position in New South Wales. A review of the law in this State reveals that medical professionals play significant legal roles in these decisions. However, the law is problematic in a number of respects and this is likely to impede medical professionals' legal knowledge in this area. The article examines the level of training medical professionals receive on issues such as advance directives and substitute decision-making, and the available empirical evidence as to the state of medical professionals' knowledge of the law at the end of life. It concludes that there are gaps in legal knowledge and that law reform is needed in New South Wales.     

试论苗族鼓社的社会作用

鼓社是苗族古代社会的三大支柱之一,鼓社祭在苗族社会中存在了几千年,虽然它的核心是家祀祖先,具有浓厚的原始宗教色彩,但它在苗族社会发展历程中却发挥着积极作用,为维系苗族的生存和进步作出了应有的贡献。。     

Data for 15 autosomal STR markers (Powerplex 16 System) from two Tunisian populations: Kesra (Berber) and Zriba (Arab)

Allele frequencies, together with some parameters of forensic interest, for 15 STRs included in the Powerplex 16 System (CSF1PO, D3S1358, D5S818, D7S820, D8S1179, D13S317, D16S539, D18S51, D21S11, FGA, Penta D, Penta E, TH01, TPO and VWA) were estimated from two samples of unrelated individuals from Tunisia, of different ethnicity: Kesra (Berber) and Zriba (Arab). No deviations from Hardy-Weinberg equilibrium were observed after Bonferroni's correction for the number of loci analysed. Comparative analyses between our population data and other North African databases showed that significant differences were concentrated on loci with lowest values of diversity (mainly CSF1PO and D13S317), irrespective of ethnicity and geographic location.