隐形网页资源的开发与利用

隐形网页资源是因特网上重要的信息资源,如何充分高效利用这些信息资源是广大网络用户非常重视和急需解决的问题。文章对隐形网页资源进行了多角度全方位的论述,重点探讨了隐形网页资源在开发利用中存在的问题以及开发利用的措施与途径。     

全文电子期刊数据库利用率统计分析研究——以天津大学Elsevier SDOL为例

本文通过对天津大学图书馆Elsevier SDOL数据库使用情况的分析,从其全文下载量、单篇成本、用户使用行为和学科文献需求等几个方面,总结了该校读者使用该数据库的整体情况.探讨了如何根据该校全文电子资源的使用情况来优化配置不同栽体类型的全文资源,优化培训内容与方式,从而使电子资源及其服务更符合用户的需要,利用率更高.     

奥林匹克教育价值之我见

奥林匹克教育是奥林匹克运动的核心价值。奥运会不仅给我们带来了精彩的体育比赛,也带来了丰富的教育资源和良好的教育契机。为迎接2008北京奥运会,本刊推出专题"奥林匹克教育的价值",意在宣传奥林匹克精神,倡导奥林匹克理念,传播奥林匹克知识,推动学校体育运动的健康发展,提高青少年素质。     

禾本科植物幼苗性状的聚类分析

本文用201种禾本科植物幼苗的60个形态和解剖性状进行了聚类分析，将禾本科植物分为四个大类(一级聚合单位)—狐茅类(Festucoid)、黍类(Panicoid)，竹类(Bambusoid)和画眉草类(Eragrostidoid)。这四类基本上与分类系统中的亚科相吻合，只是芦竹亚科植物的幼苗分散聚到了其它类中。推测芦竹亚科是一个比较原始的类群，狐茅亚科、黍亚科和画眉草亚科可能是在芦竹亚科的基础上进化而来的。  除个别种外，大多数同属的种在较低的聚合水平上聚在一起，超族在亚聚合单位中基本上能够反映出来。  研究证明禾本科植物的幼苗性状在禾本科植物分类中具有重要的分类学意义。     

中外数字图书馆之比较研究

近年来，数字图书馆的发展受到了世界各国的普遍重视。本文通过对中外数字图书馆的研究和发展情况的比较分析，提出我国数字图书馆建设应在借鉴国外先进经验的基础上，结合我国具体情况，建设具有本国特色的数字图书馆。     

Construction scheme comparison with comprehensive evaluation of independent perspectives

Considering both the characteristics of construction scheme evaluation and the lack of consideration of index proportionality after introducing comprehensive evaluation of independent perspectives into construction scheme evaluation, a construction scheme evaluation model of independent perspectives was put forward through the study and optimization of comprehensive evaluation of independent perspectives. The feasibility and rationality of the optimized method were illustrated through a case study and the evaluation results were compared between the optimized method and non-optimized method. The ootimized method has the nractical value in construction scheme comparison.     

On the Application of Booth’s Rhetorical Theory in A Good Man Is Hard to Find

A Good Man Is Hard to Find is a famous fiction which attracts many scholars to analyze the characters of the protagonists. According to Booth’s rhetorical theory, it tries to analyze how the rhetorical skills influence the readers’interpretation to the work by analyzing the application of narrative visual conversion, irony and foreshadowing. It will help readers understand the full fiction better.     

以文科复合应用型人才培养为核心加强应用文科综合实验教学中心建设

人才培养是高校教育的核心,实践教学是应用型人才培养的重要手段。文科综合实验教学示范中心在不断地探索中,明确建设思路与目标,以实验教学体系改革为核心,深入开展实践教学改革;以有效的管理体制和运行模式为保障,加强师资队伍建设,创新人才培养体系,建成了服务于全校性人文社科类专业的综合实验教学平台,为文科复合应用型人才培养发挥了重要作用。同时对北京市学院路地区高校教学共同体、附近社区居民和相关行业有良好辐射作用。中心将继续贯彻落实教育部、北京市相关文件精神,进一步开发文科综合性、设计性、创新性实验课程,健全文科实验室开放与共享的机制,确保中心的教学理念、教学手段、教学方法等引领全国文科实验教学工作,发挥更大的示范引领作用。     

Ecological principle meets cancer treatment: treating children with acute myeloid leukemia with low-dose chemotherapy

Standard chemotherapy regimens for remission induction of pediatric acute myeloid leukemia (AML) are associated with significant morbidity and mortality. We performed a cohort study to determine the impact of reducing the intensity of remission induction chemotherapy on the outcomes of selected children with AML treated with a low-dose induction regimen plus granulocyte colony stimulating factor (G-CSF) (low-dose chemotherapy (LDC)/G-CSF). Complete response (CR) after two induction courses was attained in 87.0% (40/46) of patients receiving LDC/G-CSF. Post-remission therapy was offered to all patients, and included standard consolidation and/or stem cell transplantation. During the study period, an additional 94 consecutive children with AML treated with standard chemotherapy (SDC) for induction (80/94 (85.1%) of the patients attained CR after induction II, P = 0.953) and post-remission. In this non-randomized study, there were no significant differences in 4-year event-free (67.4 vs. 70.7%; P = 0.99) and overall (70.3 vs. 74.6%, P = 0.69) survival in the LDC/G-CSF and SDC cohorts, respectively. After the first course of induction, recovery of white blood cell (WBC) and platelet counts were significantly faster in patients receiving LDC/G-CSF than in those receiving SDC (11.5 vs. 18.5 d for WBCs (P < 0.001); 15.5 vs. 22.0 d for platelets (P < 0.001)). To examine the quality of molecular response, targeted deep sequencing was performed. Of 137 mutations detected at diagnosis in 20 children who attained hematological CR after two courses of LDC/G-CSF (n = 9) or SDC (n = 11), all of the mutations were below the reference value (variant allelic frequency <2.5%) after two courses, irrespective of the treatment group. In conclusion, children with AML receiving LDC/G-CSF appear to have similar outcomes and mutation clearance levels, but significantly lower toxicity than those receiving SDC. Thus, LDC/G-CSF should be further evaluated as an effective alternative to remission induction in pediatric AML.     

消费与浪费

消费与浪费是两个对经济增长有强制约作用的因素。消费与浪费在人类社会的不同发展阶段又各处不同的地位。树立正确的消费观 ,对我国扩大内需 ,促进宏观经济增长和提高微观经济效益具有极其重要的意义。