Adolescent Peer Groups and Social Identity

This study investigated processes by which adolescents form positive evaluations of their peer groups. One‐hundred and fifteen male and female adolescents aged 14–15 years made a series of comparisons between their own peer group (the ingroup) and a group of which they were not a member (the outgroup). In line with the predictions of social identity theory ( Tajfel and Turner, 1979 ), participants behaved consistently in ways which favoured the ingroup: compared to the outgroup, the ingroup was associated to a greater extent with positive characteristics (e.g. being fun, nice, and honest) and to a lesser extent with negative characteristics (e.g. being ignorant, unfriendly, and boring). Their responses were also related to levels of identification with the ingroup: at higher levels of identification participants reported more favourable evaluations of their groups. These findings extend earlier research and show how the benefits derived from group membership in adolescence are in part realised through intergroup processes.     

图书馆读者调查统计与分析

问卷调查情况表明，读者对学校图书馆服务满意度以及图书馆数据库资源的利用率两项均偏低。需要我们牢田树立“以人为本”的管理和服务理念，调整图书馆管理工作思路，提高馆员自身素质，才能适应时代发展的要求。     

INVERSE GAUSSIAN CONTROL CHARTS

Control charts typically used to monitor process centrality and dispersion either assume normally distributed output or appeal to the viability of the central limit theorem. This appeal to the central limit theorem is frequently made on behalf of samples consisting of 10 or fewer items. Control charts for centrality and dispersion are presented for processes with inverse Gaussian distributed output.     

Statistics on statistics: Measuring research productivity by journal publications between 1985 and 1995

Sixteen international journals publishing statistical theory were surveyed over the 11-year period beginning in 1985. Paper, author and adjusted page counts yield cursory measures of productivity for institutions and countries that contributed to fundamental statistical research during that period. These data clearly identify Canada as one of the main contributors to the development of the discipline in the past decade. They also provide valuable information on the evolution of publication habits, in terms of the volume of research, the length of papers, coauthorship practices, etc.     

膜传质的统计力学模型研究

本文根据压力驱动膜分离过程的特点,采用统计力学传质模型,通过相关的热力学理论和数学方法,建立了考虑粘性流动在内的适用于低浓度非理想多组分溶液的可实际应用的统计力学膜传质模型,并通过实验对该模型进行了检验,结果表明该模型与实验结果符合较好.     

近二十年中国化工翻译研究——以知网收录重点期刊文献为例

选取中国近二十年的化工翻译期刊文献为研究样本,以Excel为统计工具统计了中国化工翻译研究文献的数量,归纳整理了化工翻译的研究角度;然后以知网收录核心期刊文献为分析样本,从理论指导、运用、翻译策略、技巧和方法等角度对其进行对比与分析,归纳总结出当前化工翻译所存在的不足。     

农业全要素生产率影响因素的社会嵌入性研究

农业发展的根本出路在于提升全要素生产率,并扩大其对农业增长的贡献.采用Malquist指数法测算了1998-2015年各省的农业全要素生产率,通过多层线性模型实证分析了其在社会嵌入性视角下的影响因素.结果表明:各省农业全要素生产率的总体差异中,有36.46%是由其社会嵌入性的不同所造成的;农业结构系数、城市化进程、受灾率、农村人力资本和物流关系嵌入对农业全要素生产率有直接影响,认知关系嵌入、资金量关系嵌入、结构关系嵌入、文化关系嵌入、政治关系嵌入有间接影响,间接影响可通过调节农业结构系数、城市化进程和农村人力资本与农业全要素生产率之间的关系实现.因此,提高农业全要素生产率要同时考虑基本影响因素和社会嵌入因素.     

劳动力市场歧视成本究竟谁买单？*

本文基于雇主的性别歧视模型对长、短期劳动力市场歧视成本收益进行分析,研究表明,短期劳动力市场上歧视性雇主为歧视成本的“消费者”,被歧视的女性劳动力为歧视成本的“买单者”;长期劳动力市场上歧视性雇主和被歧视的女性劳动力都是歧视成本的“买单者”,而离职的不再被歧视的女性劳动力却成为抵抗歧视的“受益者”;无论在短期还是长期劳动力市场上歧视性雇主获得的利润都低于非歧视性雇主。劳动力市场歧视程度主要取决于劳动力供给数量、非歧视性雇主数量以及歧视性雇主的偏见程度。     

A metadata approach to statistical query processing

Concerning the task of integrating census and survey data from different sources as it is carried out by supranational statistical agencies, a formal metadata approach is investigated which supports data integration and table processing simultaneously. To this end, a metadata model is devised such that statistical query processing is accomplished by means of symbolic reasoning on machine-readable, operative metadata. As in databases, statistical queries are stated as formal expressions specifying declaratively what the intended output is; the operations necessary to retrieve appropriate available source data and to aggregate source data into the requested macrodata are derived mechanically. Using simple mathematics, this paper focuses particularly on the metadata model devised to harmonize semantically related data sources as well as the table model providing the principal data structure of the proposed system. Only an outline of the general design of a statistical information system based on the proposed metadata model is given and the state of development is summarized briefly.     

数理统计：科技英语语法研究的二元属性分析法

科技英语作为一种特殊的语言变体已引起广泛关注。许多学者曾对其进行研究并取得成果 ,但都缺乏必要的数理依据。介绍科技英语的数量统计方法 ,即先对科技文献进行随机抽样 ,进而采用二元属性分析法进行数理统计 ,再附之以归纳与演绎法综合应用从而过滤出数据 ,找出型式 ,这样即可检验现有假设 ,又可为科技英语的翻译及教学提供一个科学范式 ,以规范此领域的工作。