族际社会中的族群与族群认同--以俫人为个案

“族群边界”理论认为造成族群的是“边界”,它产生于族群互动的过程,是族群的主观认知和选择,并以此区分不同人群。以侏人为例,他们通过对祖先记忆的诠释而形成边界,实现族群认同。“边界论”立足于主位视角,重视动态过程,与“客观特征论”用客观特征来判断族群身份的静态模式形成鲜明对比。     

微空心阴极放电的计算机模拟

给出了圆筒形微空心阴极氦气放电的三维、时域、自恰流体方程组(粒子连续性方程、电子能量平衡方程和泊松方程)及其稳态的差分方程组和合理的边界条件,并利用计算机模拟计算,得出了放电稳态时形成的粒子密度、电子平均能量、电位等值线和电场分布图。结果表明在放电过程中存在明显的阴极位降区和负辉区,空心阴极效应明显,存在高能电子以及放电空间中以径向电场为主。并对计算结果进行讨论,为微空心阴极放电器件提供了理论依据。     

旅游企业一体化的边界分析

一体化行为作为一种高级化的竞争战略在给旅游企业带来快速发展的同时也产生了诸多问题。本文从经济学的角度深层剖析了旅游企业一体化扩张的影响因子,然后在此基础上构筑边界模型,深入研究了一体化扩张的最优规模和最优边界点,并对此展开了实证研究,为旅游企业一体化的实践活动提供理论指导。     

光学优化设计中的定域法研究

介绍了一种定域型优化设计算法──不等式法,借助于Ｃ＋＋开发程序将该方法运用于光学优化设计中,设计了几种典型的光学系统。设计过程和设计结果表现出了这种算法的快速、稳定收敛性,且符合传统的设计思想。     

中国经济适度稳定增长的货币供给边界研究(三)--寻求适度经济增长率的选择

首先分析货币供给与经济增长速度之间的内在联系,并运用发展经济学家钱钠里(H.B.chenery)在“大国模型”中提出的标准,对照我国具体国情,得出中国经济发展实际已经进入了工业化起飞阶段,最后通过统计确定中国经济增长率的中长期政策目标。     

体制转轨时期的电力企业运行机制研究

体制转轨期指我国正从完全的计划经济向较为完善的市场经济过渡的一段时期,从电力角度讲,要建立完善的电力市场包括建立完善的交易规则、现代电力企业制度。目前,我国电力企业电力供给等出现较为混乱的局面,一方面部分电力企业严重亏损、部分企业盈利丰厚,另一方面农村用电、工业用电紧张。本文着重探讨电力企业的内在运行机制,研究电力体制、电力企业、电力工业的改革理论。     

零售业竞争的对策模型分析

零售商家主要是通过价格竞争和非价格竞争两种方式来实施竞争策略,无论是通过何种途径展开竞争,都是一个对策过程。采用对策论的分析方法,建立了价格竞争与非价格竞争的对策分析模型,并在对模型分析的基础上,提出竞争商家间的合作条件。     

上凸函数的充要条件

上凸函数是一类重要函数,本文给出了上凸函数的两个充要条件,并用二进制小数、有理数列逼近无理数的方法证明了这两个充要条件.     

Ecologies of Boundaries: Modes of Boundary Work in Professional Proto‐Jurisdictions

Ecological approaches to professional work, authority, and regulation have seen a resurgence in the sociology of professions, as epitomized in the linked ecologies framework of Andrew Abbott. Alongside this resurgence comes a renewed attention to the way symbolic and material boundaries within and between professions, as well as between professional, university, and political institutions, come to be defined, negotiated, and changed as part of ongoing professional projects. Building on and comparing case studies set in Denmark into three emerging professional “proto‐jurisdictions”—of water‐related climate adaptation, lifestyle disease prevention, and innovation management—this article identifies three key modes of interprofessional boundary work important for such projects. In doing so, it grounds Abbott's meso‐level framework of linked ecologies in more situated accounts of workplace‐level boundary interaction, by reconnecting to a wider tradition of symbolic interactionist studies of professions.     

Urban growth boundary policy and residential suburbanization: Riyadh, Saudi Arabia

The process of suburbanization of Riyadh, a city of 4.5 million inhabitants, offers a unique situation in which the urban morphology of the city can be examined in light of socio-political and economic conditions. Central government ordinances helped create ‘dysfunctional’ sprawl by mandating big lots and overly wide streets. Fifty percent of the city’s urban plan of approximately 1300 km² represents a pattern of untimely, undeveloped subdivisions. Much of this premature sub-divisioning was a result of speculative land deals. The current area of undeveloped subdivided land is approximately 650 km², which is roughly the equivalent to the city’s land currently developed.The author argues that government policies and inefficient urban planning practices have encouraged the transformation of the peripheral desert landscape into unchecked land sub-divisioning championed by land developers and speculators. Using a comparative approach, the paper attempts to highlight sociopolitical and other cultural factors that underlie this inefficient sprawl at the fringe. It closes with recommendations to alleviate such a costly pattern that can be generalized to other developing world cities.