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1.
收集了上海郊区13个具有明显方言差异人群的头面部数据4项,和台湾高山族10个群体的参数进行聚类分析,发现上海郊区居民中的南方土著人群与台湾高山的遗传关系较近。  相似文献   

2.
选取中国28个少数民族人群的13项体质人类学指标进行聚类分析与主成分分析.研究结果显示:(1)聚类分析结果表明中国少数民族可分为南方人群组与北方人群组.甘肃、青海少数民族体质与南方人群较为接近.3个蒙古族人群体质较为接近,东乡族与保安族体质接近,撒拉族与土族体质接近.(2)主成分分析结果表明北方、南方人群体质差异主要在体部高度.在南、北人群之外,还存在一个过渡类型,即生活在甘、青的少数民族,他们身材居中,面部较高,头较长,五官宽度较窄.  相似文献   

3.
上海是中国近代历史中具有非常独特个性和世界影响的城市。由于它的特殊形成和它的发展个性,在中国人的心目中,“海派”已不仅是上海人代名词,而且成了中西文化交融、不同移民和平相处、共同发展的代名词。本文所说的上海人,就是在这样一种中国近代史的特殊历程和上海城市文化畸形发展,以及上海人移民的大汇聚的历史背景下铸就的。  相似文献   

4.
为了探索南北方老年人出行行为之间的差异,选取北方城市东营市和南方城市恩平市为研究对象。基于两个城市的居民出行调查数据,对南北方60岁以上老年人群的出行特征进行统计,并进行对比分析。总结了南北方老年人在出行率、出行方式、出行目的以及出行时间上的差异和特点。另外,利用多项Logit模型分别建立南方和北方老年人出行方式选择模型,定量分析南方和北方老年人在出行方式选择的影响因素,并分析两者之间的差异性。研究发现性别、年龄这些个人属性对南北方老年人出行方式选择行为影响不显著,家庭属性对南北方老年人出行方式选择的影响有显著的差异。对于出行时间,则表现出某种出行方式出行时间越长,越不利于老年人选择该种出行方式。  相似文献   

5.
奉贤县东西部2个人群的体质差异   总被引:3,自引:0,他引:3  
从历史学的材料看,上海奉贤县金汇镇的居民主要是南方土著居民,头桥镇的居民主要是从北方迁徒过来的,二地方言有很明显的差异,对金汇,头桥2个群体的头面部特征,体部特征和肤纹3大类65项观察测量特征进行了比较,以此对2群体间的差异进行了显著性测试,发现2群体间大部分项目有显著差异,说明语言差异能反映遗传差异的观点是有根据的,2个群体的差异可能是因为其来源的不同引起的,在所有特征中,鼻部特征,眼部特征,颧骨,额骨体现的群体间差异最大,提示这些特征可能是面貌遗传研究的突破口。  相似文献   

6.
韩起澜(EmilyHonig)的《苏北人在上海,1850-1980》一书的重要价值在于运用族群理论对一个在很大程度上被无视的人群、社会关系和历史过程进行了重建。作为过渡地带的淮北、江淮地区在历史上见证了两次相似的族群建构,一次是西周时期的淮夷,一次则是韩起澜论述的苏北人。两者都是在中心一边缘结构中形成的,前者相对于西周王朝,后者相对于上海,族群的建构中,移民是一个重要的历史情境。  相似文献   

7.
在澳大利亚南方海面上,有一个大岛名叫塔斯马尼亚岛,隔巴斯海峡与澳大利亚大陆相望,岛上曾经生活着被称为塔斯马尼亚人的土著居民。塔斯马尼亚土著与澳大利亚大陆土著的种族特征有所不同,分别称为塔斯马尼亚种人和澳大利亚种人。据欧洲传教士的记载  相似文献   

8.
历史上被北方人称为“蛮夷之地”的岭南地区,其独具特色的岭南土著文化能够与中原文化、荆楚文化、巴蜀文化、吴越文化等地域文化交流融合,发展成为具有共同特质的岭南文化,是与其既封闭又开放的地理区位、丰富多样的自然环境与资源、土著居民的历史作用、安定的社会政治环境、内部地理环境差异、移民等因素分不开的,这些因素构成了岭南文化形成发展的历史地理基础。  相似文献   

9.
三叶木通种质资源形态多样性研究   总被引:5,自引:0,他引:5  
收集全国三叶木通种质资源73份,测量各种质16个生物学性状,运用SPSS软件对各形态指标进行方差分析和主成分分析,并对各种质进行聚类分析.方差分析结果表明,描述果实的各指标变异幅度最大,各种质间果实差异较大.主成分分析把16种形态学指标归结为果实因子、叶片因子、种子因子、果肉因子4个主成分.聚类分析把73份种质资源分为5大类.为三叶木通种质资源的收集整理以及优良种质的选育提供了重要的形态学依据.  相似文献   

10.
韶关开发韶乐的历史根据及其价值   总被引:1,自引:0,他引:1  
人们普遍认为,舜在韶石奏韶乐及韶关得名于韶乐,都是因唐宋人的附会而产生的传说和结果。先秦的可靠献把韶乐的发祥地指向南方苗蛮分布区的南岭周边地区,而非北方中原地区。这证明韶乐当是南方苗蛮部族的化成分,唐宋人的说法是有历史传说根据的。韶关是韶乐最有可能的发祥地,韶乐是韶化中最值得珍视和开发利用的历史化资源和旅游资源。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
王慧 《科技信息》2008,(10):240-240
Wuthering Heights, Emily Bronte's only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.  相似文献   

14.
The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.  相似文献   

15.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

16.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

17.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

18.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

19.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

20.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

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