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1.
本文依据近半个世纪以来海外华人宗族的变化和发展,探讨了海外华人宗族文化的实质与特征。认为海外华人宗族文化是华夏宗族文化的外延和演变,具有悠久的历史渊源,深厚的社会基础和丰富的思想文化内涵,以及开放、兼容、更新的自我发展能力,因而它具有强大的生命力。并据此对海外华人宗族文化在21世纪的发展前景与历史使命作了展望和简要论述。  相似文献   
2.
上个世纪七八十年代以来,西方各国相继进行一系列的司法改革,取得了显著成效。当前我国也处于司法改革的关键时期,作为司法改革组成部分的检察制度的改革自然也是重中之重。检察改革的目标是实现公正和效率。但应当改革哪些内容,除以目标为导向外,适当地借鉴其他国家检察改革合理的经验对中国检察改革将大有裨益。文章首先考察了当今世界几个主要国家检察制度改革的新动向,试图从中发现域外检察制度发展的趋势;并结合中国现行检察制度中存在的主要问题,尝试性地提出了一些检察改革的建议。  相似文献   
3.
Direct applications of remote sensing thermal infrared (TIR) data in landscape ecological research are rare due to limitations in the sensors, calibration, and difficulty in interpretation. Currently there is a general lack of methodology for examining the relationship between land surface temperatures (LST) derived from TIR data and landscape patterns extracted from optical sensors. A separation of landscapes into values directly related to their scale and signature is a key step. In this study, a Landsat ETM+ image of Indianapolis, Unites States, acquired on June 22, 2000, was spectrally unmixed (using spectral mixture analysis, SMA) into fraction endmembers of green vegetation, soil, high albedo, and low albedo. Impervious surface was then computed from the high and low albedo images. A hybrid classification procedure was developed to classify the fraction images into seven land use and land cover (LULC) classes. Using the fractional images, the landscape composition and pattern were examined. Next, pixel-based LST measurements were correlated with the landscape fractional components to investigate LULC based relationships between LST and impervious surface and green vegetation fractions. An examination of the relationship between the LULC and LST maps with landscape metrics was finally conducted to deepen understanding of their interactions. Results indicate that SMA-derived fraction images were effective for quantifying the urban morphology and for providing reliable measurements of biophysical variables. LST was found to be positively correlated with impervious surface fraction but negatively correlated with green vegetation fraction. Each temperature zone was associated with a dominant LULC category. Further research should be directed to the theoretical and applied implications of describing such relationships between LULC patterns and urban thermal conditions.
Dengsheng LuEmail:
  相似文献   
4.
Each year thousands of immigrants and refugees begin their lives in new places, speaking new languages, and facing new challenges. Challenges include access to health/mental care, education, transportation, and employment. Researchers and practitioners frequently focus on challenges of newcomers and their deficits in meeting needs for self-sufficiency. This study explores newcomers’ giving back and emphasizes an untapped reservoir of strength and capacity. Based on qualitative semi-structured interviews with 54 immigrants and refugees, themes identified include (1) a desire to maintain ethnic identity and connection; (2) ethnic community as an extension of family; (3) a sense of duty and obligation; and (4) measure of achieved success. Researchers and practitioners should shift their view to recognize the strengths and capacities of newcomers who give back to their communities.  相似文献   
5.
Random eigenvalues are the key elements in parallel analysis. When analyzing Likert-type data, is it necessary to convert the continuous random data to discrete type before estimating eigenvalues? The study compared the random eigenvalues obtained from continuous and categorized random data from two popular computer programs to be used as the basis for comparison in conducting parallel analysis on Likert-type data. Results indicated that categorized random data gave eigenvalues and number of factors similar to those obtained from continuous random data. It is suggested that when conducting parallel analysis on Likert-type data by the two programs, the conversion is unnecessary.  相似文献   
6.
阶级或阶层意识中的心理因素:公平感和态度倾向   总被引:5,自引:0,他引:5  
本文按照客观社会位置→公平感→态度倾向→阶级意识这一思路探讨个体的公平感和态度倾向等心理因素在阶级阶层意识形成过程中的作用。在研究方法上,以聚类分析、因子分析等统计手段作为建立态度倾向等主观变量的工具,以多项逻辑斯蒂回归(multinomial logistic regression)模型验证变量之间的关系。研究结果表明,不公平感强的人在社会态度上容易出现嫌富怜贫等倾向,公平感等心理因素具有分解来自客观社会位置影响的作用,导致在客观社会位置的维度下,人们的阶级意识呈现碎片化特征;进而认为,阶级意识不是自发形成的。  相似文献   
7.
In this paper, we introduce a combinatorial problem faced in the tire industry and then define it and optimize it by tabu search from the perspective of operational research. Such a problem is termed the pitch arrangement problem and involves both selecting and sequencing problems along with noninteger design variables. Pitch arrangement is an essential procedure for tires before their manufacture. Using this procedure, engineers have to choose an optimal groove distribution on tire treads for the purpose of manufacturing low-noise tires. Most research works on pitch arrangement are supported by tire companies, and their results are patented instead of being published. In this study, we define the abovementioned problem clearly and optimize it by tabu search. Two actual manufactured tires are chosen for the case studies. In addition, two patents and two types of pitch sequences optimized by genetic algorithms are also applied to these two tires for comparison. The pitch arrangement is optimized successfully and the performance of tabu search is found to be outstanding.  相似文献   
8.
面向动态完全竞争构建多维协同组合战略   总被引:2,自引:0,他引:2  
现有战略管理理论以不完全竞争市场为前提条件,因而越来越难以应对日益激烈的超竞争环境.有甚于此,笔者的研究发现,在技术进步和收入增长效应足够大的情况下,传统上认定不会出现完全竞争的差别产品最终也会出现每个企业都按边际成本定价的动态完全竞争.面向动态完全竞争的战略管理的基本任务随之转为运用介观视野去发现并实施具备多维协同组合特性的新的商务模式,同时做到差异准确、成本领先、反应敏捷和分享得力.  相似文献   
9.
黑井千次是日本战后文学流派内向的一代的代表作家,在他的前期作品中,始终贯穿着个人在集团中的自我确认问题。本文分析作者之所以把自我确认作为小说主题的原因。  相似文献   
10.
Emergency response is directly related to the allocation of emergency rescue resources. Efficient emergency response can reduce loss of life and property, limit damage from the primary impact, and minimize damage from derivative impacts. An appropriate risk analysis approach in the event of accidents is one rational way to assist emergency response. In this article, a cellular automata‐based systematic approach for conducting risk analysis in emergency response is presented. Three general rules, i.e., diffusive effect, transporting effect, and dissipative effect, are developed to implement cellular automata transition function. The approach takes multiple social factors such as population density and population sensitivity into consideration and it also considers risk of domino accidents that are increasing due to increasing congestion in industrial complexes of a city and increasing density of human population. In addition, two risk indices, i.e., individual risk and aggregated weighted risk, are proposed to assist decision making for emergency managers during emergency response. Individual risk can be useful to plan evacuation strategies, while aggregated weighted risk can help emergency managers to allocate rescue resources rationally according to the degree of danger in each vulnerable area and optimize emergency response programs.  相似文献   
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