内蒙古7个群体优势眼的调查

1987～1991年间4次调查了内蒙古7个群体3 247例优势眼的分布特征。研究结果显示：（1）7个群体中右优势眼出现率约为70%～80%。呼和浩特回族、阿拉善蒙古族右优势眼出现率明显低于其他5个群体;（2）右优势眼出现率无性别间差异;（3）优势眼与惯用手这两个性状间存在一定的联系。Abstract：　A survey on distribution of eye preference of 3247 cases among seven groups in Inner Mongolia were carried out from 1987 to 1991. The results showed that：（1）The right-eye preference showed a frequency of 70%～80% in seven groups. The Hui ethinc group of Huhhot city and Mongols of Alashan League had a obviously lower frequency of this trait than the other five groups.（2）The frequency of this trait showed no sexual signi-ficant difference.（3）There were cor-relations between the eye preference and handedness.     

大熊猫与黑熊显带染色体的比较研究

以体外培养的大熊猫（Ａｉｌｕｒｏｐｏｄａｍｅｌａｎｏｌｅｕｃａ）与黑熊（Ｓｅｌｅｎａｒｃｔｏｓｔｈｉｂｅｔａｎｕｓ）外周血淋巴细胞为实验材料,应用ＢｒｄＵ复制带显示技术,研究了大熊猫和黑熊染色体晚复制带带型。通过对大熊猫与黑熊显带染色体带型的比较,发现黑熊部分具端着丝粒的染色体与大熊猫部分具中,亚中,或亚端着丝粒的染色体的整个短臂或整个长臂有明显的带型相似性,在黑熊具中,亚中着丝粒染色体中,仅３３     

遗传多代的13/21罗伯逊易位家系的调查研究

一个13/21染色体罗伯逊易位家系中, 易位染色体携带者4人,易位型先天愚型患者3人,易位染色体至少已经遗传了4代。该家系中有同性双生子的聚集现象。讨论了罗伯逊易位的遗传机理。Abstract:A pedigree with 13/21 robertsonian translocation was reported.There were four carriers and three patients with Downs syndrome in the padigree.The Robertsonian chromosome translocation had been transmitted at leart for four generations.A family aggregation of monozygotic twines was found in this pedigree too.The inheritance principle of robertsonian translocation was discussed and that the origin of monozygotic twins may be genetically involved were considered.     

The language of ethnicity and self‐identity in American Spanish and Brazilian Portuguese*

This article investigates whether cultural models of behaviour can explain the persistently higher unemployment rate of non-whites in the UK. Such models argue that the prevalence of unemployment among non-whites may induce a greater tolerance of joblessness and poorer attitudes towards working which act to further reduce their employment chances. However, estimates from a hazard model of unemployment durations indicate that such factors play no role in explaining longer ethnic minority spells. This casts some doubt on the power of cultural models to account for the UK experience.     

中华民族基因组多态性数据库的构建

为配合总体的实验研究构建了中华民族基因组多态性(Genomic Polymorphism of Chinese Ethnic Groups,简称GPCEG)数据库,现已初步建成包括民族名称、基本情况介绍、体态特征、基因多态性数据、永生细胞株系、参考文献、国际相关数据库连接等内容的数据库,并完成了其可视化浏览及查询系统的建立,为建成具有中国特色的国家自有数据库奠定了基础,也可为从事相关研究的科学工作者提供信息服务。     

内蒙古哈素海发现池鹭繁殖群

正池鹭(Ardeola bacchus)在内蒙古夏季见于呼伦贝尔市、赤峰市克什克腾旗和敖汉旗、呼和浩特市哈素海、包头和鄂尔多斯市黄河沿岸、巴彦淖尔市乌梁素海,但未见繁殖记录的报道。哈素海(E 110°56'~111°01',N 40°34'~40°38')位于大青山南部土默川平原北端,在呼和浩特市区向西70km处的土默特左旗境内,是黄河改道而遗留的椭圆形牛轭湖,属于大黑河水系的外流性淡水湖泊,主要水源来自     

褪黑素对内蒙阿白山羊在非生绒季节促绒生长及绒产量的影响

用简易的外科手术在阿白山羊梳绒后的非长绒季节,给羊体颈部皮下埋植一种含褪黑素的胶囊试验,经５周后受试羊群长出了新绒,对照群则未见新绒生长。在８月下旬天然生绒季节快下到时,试验组羊绒已长至近３公分;而对照群才开始生绒,但绒长不足１分分。表明含上述激素胶囊促绒生长首次成功。翌年对上述羊群跟踪检测结果：受试羊群个体产绒量的特级（≥４５０克／头）率。提高为５０－６８．４％,与对照群（３５％）相比,提高１５     

内蒙古根瘤菌的数值分类

对63株新分离的内蒙古根瘤菌与6株来自Rhizobiumleguminosarum及Sinorhizobiummililoti的参比菌株一起进行了数值分类。结果表明：所有测试菌株在67％的相似性水平上分为三个表观群,群Ⅰ包括3株Sinorhizobiummeliloti的参比菌和9株新分离的内蒙古根瘤菌;群Ⅱ包括3株RhizobiumLoguminosarum参比菌和37株新分离的内蒙古根瘤菌;群Ⅲ全部由20株新分离的内蒙古根瘤菌组成。在78％的相似     

褪黑素对中国绒山羊在非生绒期促绒生长与绒产量的影响

用简易的外科手术对阿白羊,盖县红山羊及二者杂交改良型绒山羊在梳绒后于其颈部皮下埋植一种含褪黑素的胶囊,经５周后受试羊群开始长绒,而对照群羊则未见绒生长。在９月中旬天然生绒开始时,受试群羊绒已分别长至３－５ｃｍ,,而对照群则刚开始生长至２ｃｍ。表明上述各受试群当年被成功地诱发二次生绒。     

A new middle Miocene pliopithecid from Inner Mongolia, China

In addition to the new fragments of the Omo I skeleton, renewed fieldwork in the Kibish Formation along the lower reaches of the Omo River in southwestern Ethiopia has yielded new hominin finds from the Kibish Formation. The new finds include four heavily mineralized specimens: a partial left tibia and a fragment of a distal fibular diaphysis from Awoke's Hominid Site (AHS), a parietal fragment, and a portion of a juvenile occipital bone. The AHS tibia and fibula derive from Member I and are contemporaneous with Omo I and II. The other specimens derive from Chad's Hominid Site (CHS), and derive from either Member III or IV, which constrains their age between approximately 8.6 and approximately 104ka.     

内蒙古被子植物新记录

报道了内蒙古被子植物3个分布新记录种:昆仑锦鸡儿(Caragana polourensis Franch.)、甘肃霸王(Zygophyllum kansuense Y.X.Liou)、口外糙苏(Phlomis jeholensis Nakai et Kitag.)。相关凭证标本均存放于内蒙古大学植物标本馆(HIMC)。     

记准噶尔巨犀(Dzungariotherium)一新种

本文记述了准噶尔巨犀(Dzungariotherium)的一个新种。标本为中苏古生物考察队1960年在内蒙古沙拉木伦地区额尔登敖包的早渐新世乌兰戈楚组内所采。由于这一新种的时代为早渐新世,因而有可能是发现于新疆的晚渐新世霍尔果断准噶尔巨犀(Dzungariotherium org-osensis)的祖先类型。