两个代数不等式的简证及推广

本文通过例子对[1]中不等式猜想给出了肯定的回答。找到了这个不等式成立的另一个充分条件,并给出了它的一个新的推广．     

The perpetrators of medical child abuse (Munchausen Syndrome by Proxy) – A systematic review of 796 cases

IntroductionLittle is known about the perpetrators of medical child abuse (MCA) which is often described as “Munchausen’s syndrome by proxy” or “factitious disorder imposed on another”. The demographic and clinical characteristics of these abusers have yet to be described in a sufficiently large sample. We aimed to address this issue through a systematic review of case reports and series in the professional literature.MethodA systematic search for case reports and series published since 1965 was undertaken using MEDLINE, Web of Science and EMBASE. 4100 database records were screened. A supplementary search was then conducted using GoogleScholar and reference lists of eligible studies. Our search yielded a total sample of 796 perpetrators: 309 from case reports and 487 from case series. Information extracted included demographic and clinical characteristics, in addition to methods of abuse and case outcomes.ResultsNearly all abusers were female (97.6%) and the victim’s mother (95.6%). Most were married (75.8%). Mean caretaker age at the child’s presentation was 27.6 years. Perpetrators were frequently reported to be in healthcare-related professions (45.6%), to have had obstetric complications (23.5%), or to have histories of childhood maltreatment (30%). The most common psychiatric diagnoses recorded were factitious disorder imposed on self (30.9%), personality disorder (18.6%), and depression (14.2%).ConclusionsFrom the largest analysis of MCA perpetrators to date, we provide several clinical recommendations. In particular, we urge clinicians to consider mothers with a personal history of childhood maltreatment, obstetric complications, and/or factitious disorder at heightened risk for MCA. Longitudinal studies are required to establish the true prognostic value of these factors as our method may have been vulnerable to publication bias.     

图书馆文献资源建设现状及数据共享措施

本文通过两大编目中心书目数据的差异分析,探讨了图书馆文献资源数据库建设的现实问题,并且为文献资源的共建共享提出了一些建设性措施。     

汉语框架网络知识本体构建研究

汉语框架网络知识本体是以框架语义学为理论基础,有丰富的语料库支撑,揭示了概念的本体关系。其获取,是在构建语料库的基础上,利用叙词表、分类表和其他知识分类体系等现有的知识本体,识别领域内外相关的概念并抽取相应属性,建立概念之间的关系,并利用所识别的概念和关系创建新的本体,融合已有的本体和新建本体。图2。参考文献4。     

倡导全民阅读 共建书香城区——重庆渝中区市民阅读现状调查报告

为了解市民阅读情况，对重庆渝中区部分社区图书室和图书馆进行了市民阅读现状的调查。并对市民阅读现状的成因进行了分析。提出了改善市民阅读现状的措施。     

Web2.0?还是让我们先使用Web1.0吧!

本文阐述了要在完善web1．0的基础上使用web2．0。     

国内外网络内容分析应用现状研究

以文献计量方式描述国内外网络内容分析文献（案例）的出版年代分布、学科分布、网络内容分析应用的媒介类型及应用主题与目的;归纳建立内容分析应用程序及指标体系,并以此为依据,通过案例文献分析目前国内外网络内容分析在主要操作指标上的应用规范状况,最后给出几点建议。     

网络环境下高校图书馆管理的价值取向

网络环境下高校图书馆管理的价值取向主要有：以读者用户为中心的总体价值取向、共建共知享的资源建设取向，一切从方便读者出发的服务取向、图书馆管理的人本取向，主动塑造，主动参与的行为取向和塑造为教学科研服务的全校信息中心和学术机构的形象取向。     

山西省农村中学课外体育活动的现状调查与分析

采用问卷调查法对山西省农村中学课外体育活动的现状进行研究,对促进山西省农村中学课外体育活动健康有序地开展提出建议,旨在进一步贯彻学校体育有关法规,为上级部门制定有关政策和深化学校体育改革提供有益参考。