尔苏人与木雅人身体成分分析

为了解中国西南地区2个未识别族群(尔苏人和木雅人)的体成分状况,采用生物电阻抗法测量四川尔苏人120例(男性为69例,女性为51例)、木雅人157例(男性为77例,女性为80例)的20项体成分指标,包括身高、体质量、脂肪及肌肉发育状况等,并且与甘肃和西藏藏族人群进行体成分的比较.结果表明:尔苏人和木雅人男性的体成分各项指标均接近;木雅人女性除体质量、总能量代谢、躯干肌肉量大于尔苏人女性外(P0.05),其余指标均与尔苏人女性接近.随年龄增长,木雅人和尔苏人的总肌肉量、推定骨量、总能量代谢、躯干肌肉量呈线性下降(P0.01).尔苏人和木雅人的体脂率高于西藏藏族,超重及肥胖出现率均高于甘肃藏族和西藏藏族,腰臀比的出现率小于西藏藏族而大于甘肃藏族.     

中国木雅人、尔苏人、八甲人与空格人的皮褶厚度

在云南省西双版纳与四川省石棉县调查了157例木雅人、120例尔苏人、158例八甲人与71例空格人的皮褶厚度,包括面颊皮褶、肱二头肌皮褶、肱三头肌皮褶、肩胛下皮褶、髂前上棘皮褶、髂嵴上皮褶、小腿内侧皮褶共7项.比较研究了4个族群与我国西南地区15个族群的皮褶厚度并进行聚类分析.结果表明:①木雅人、尔苏人、八甲人与空格人男性的7项皮褶厚度均显著低于女性数值;②木雅人与尔苏人的各项皮褶厚度值较接近,二者的面部皮下脂肪堆积水平较高,八甲人身体躯干和四肢皮下脂肪堆积水平优于其他3个族群,空格人的各项皮褶厚度均较小,皮下脂肪堆积水平较低;③同西南地区其他15个族群的皮褶厚度相比,八甲人的数值偏大,尔苏人和木雅人的数值属于偏大或中等偏大,空格人的数值较小;④聚类分析结果显示,木雅人与尔苏人接近,八甲人与四川汉族族群接近,而空格人与云南傣族和云南蒙古族接近.     

广西防城港市的族群认同(中)

本文是《广西防城港市的族群认同》的中篇,继上篇“族群的自我认同”后,本篇从语言文字、节庆、礼仪、生产习俗、服饰饮食、宗教信仰等方面论述了族群间的相互认同     

中国尔苏人、木雅人、空格人与八甲人的成人围度特征

为了解中国西南地区4个未识别族群(尔苏人、木雅人、八甲人和空格人)的体质状况和亲缘关系,对四川省的尔苏人120例和木雅人157例、云南省的空格人71例和八甲人158例进行身体围度特征的调查,包括头围、颈围、胸围、吸气胸围、呼气胸围、腰围、腹围、臀围、大腿围、小腿围、上臂围、前臂围、上臂最大围13项指标.选取中国南方的11个族群与之进行围度特征的比较.结果表明:4个族群中,男性躯干部的3项围度按大小排列顺序均为胸围臀围腹围;女性排列顺序则为臀围腹围胸围.男性的上肢围度(上臂围、前臂围、上臂最大围)普遍大于女性,女性的臀围和大腿围普遍大于男性.基于围度的聚类分析结果表明,尔苏人、木雅人、八甲人的亲缘关系较为接近,并且与云南傣族的亲缘关系接近;空格人则与贵州革家人的亲缘关系较为接近.     

四川省尔苏人与木雅人5项舌运动类型的人类学分析

在四川省雅安市对尔苏人和木雅人进行了5项舌运动类型的调查,包括卷舌、叠舌、翻舌、尖舌和三叶舌.应用整群随机抽样的方法,对尔苏人采样120例(男性69例,女性51例),对木雅人采样157例(男性77例,女性80例).调查结果表明,尔苏人的卷舌率为42.50%,叠舌率为0.83%,翻舌率为3.33%,尖舌率为59.17%,三叶舌率为1.67%;木雅人的卷舌率为46.50%,叠舌率为1.27%,翻舌率为3.82%,尖舌率为66.24%,三叶舌率为4.46%.与国内外其他族群相比,尔苏人和木雅人的尖舌率处于中等或较高水平,其余4项的出现率处于极低或较低水平.尔苏人仅在叠舌和尖舌之间存在相关性,木雅人仅在卷舌和三叶舌之间存在相关性.与南方10个族群基于舌运动类型的聚类分析结果表明,尔苏人和木雅人的亲缘关系最近,二者与四川彝族和羌族的亲缘关系较近.     

华裔族群:语言、国籍与认同

华裔族群认同的持续并不在于任何汉语使用的持续 ,因此需区分文化认同和族群认同。然而文化——特别是其中的语言部分——可表现认同的类型 ;而文化涵化的不同层次导致了对华人认同的不同理解。因此研究华裔族群的认同应该从“语言、语言的涵化与认同的关系 ;中文能力与认同的关系 ;国籍与认同的关系”综合考虑。     

珠江三角洲外来企业中的族群与族群关系(下)——以深圳中成文具厂为例

从衡量族群关系的文化、社会交往或基层组织的相互进入、通婚、族群认同、偏见、歧视、资源与权利分析等 7个变量解析了中成文具厂的族群关系及族群关系的主要特征 ,并通过一个典型个案进一步揭示其族群认同和族群关系     

我校1项目获全国教育科学“十一五”规划立项

由我校文学院刘永文教授申报的全国教育科学“十一五”规划“藏族大学生族群认同的跨文化教育研究”获全国教育科学规划领导小组办公室立项。该项目具体研究跨文化教育中的师资队伍建设、教材建设、教学方法改革等问题，探讨如何通过师资队伍建设、教材建设、教学方法改革使跨文化教育更加科学化、系统化，在此基础上解决藏族大学生的语言认同、身份认同、宗教认同、行为认同等问题。     

论族群与族群关系

有关族群和族群性的概念多种多样。族群与民族均来源于西方,但它们之间是有区分的。在对族群的研究中,族群认同被视为一个主要的内容,族群认同总是通过一系列的文化要素表现出来,文化是维持族群边界的基础。关于族群关系的讨论有许多不同的理论：同化理论、文化多元理论、生物学的理论、人文生态理论、权力和分层理论及整合的族群关系理论等。     

中国的民族政策与族群认同的几个问题——与于鹏杰同志商榷

于鹏杰同志的《族群认同的现代含义:以湖南城步苗族为例》认为中国政府的民族政策使得许多民族自愿或不自愿的采用了汉族的生活方式,并导致了新时代文化认同与族群认同的困惑。如此评价,实有误解乃至歪曲中国政府民族政策的嫌疑。新时代族群认同的困惑不是由于中国政府的民族政策造成的,而是在于“族群”概念的不确定性和民族、族群认同表现的多样性。     

藏彝走廊尔苏藏族研究综述

尔苏藏族是藏族的一个支系,其历史演变和复杂的文化现象,都表现出藏彝走廊内族际互动的深度和广度,是研究民族走廊文化互动的典型个案。     

凉山州尔苏藏族民歌特征研究

本文以四川省凉山州尔苏藏族民歌为研究对象,在田野采风和资料分析的基础上,对尔苏藏族民歌的结构、内容和艺术特点作了一些探讨。尔苏藏族民歌的结构多为一段体,每句有六、七、八个小节不等。内容以酒歌居多,还有其它反映人民生活的歌曲,诸如思念歌、打猎歌、出嫁歌等。艺术特点为音调悠长、潇洒豪放、节奏自由等,均具有藏民族特有的个性和风格,所不同的是尔苏藏族处在藏彝文化交叉带之上,音乐风格又有其独特之处。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.