基于Ontology的传统中医药知识的概念检索

研究选取传统中医药知识中的方剂部分,构造基于资源描述框架的Ontology作为概念检索的基础,设计并实现药学文摘数据库概念检索平台,探讨概念检索对中医药传统知识检索的解决方法。     

网络环境下高校图书馆图书流通服务工作探讨

简要介绍了网络环境下高校图书馆图书流通服务工作的特点,阐述了高校图书馆图书流通服务工作存在的一些问题,并提出了相应的解决对策。     

基于标记树的XML文档自动分类研究

本文首先介绍了XML文档和DTD标记树的生成方法,并对标记树中节点的概念进行了扩充,使之不但包括元素,同时也包括连接符,以适应DTD结构的要求。随后将标记树中的元素分为共有元素、文档元素和DTD元素,并提出层次权重和结构权重以衡量元素的层次和结构复杂程度,给出具体计算方法。在此基础上提出了一个衡量XML文档和DTD之间相似度的算法,将其应用于XML文档自动分类中,并给出该算法的时间复杂度计算公式。从实验结果可以看出,该分类方法准确率较高。     

地方高师院校课程设置状况个案研究

文章以两所地方高师院校的现状调查为例,分析了当前高师院校人才培养在课程设计、教学管理等方面存在的问题与不足,并由此提出了优化课程结构、强化实践环节、健全教学管理机制等若干条建设性的思路与对策。     

“通专结合”下设计专业通识课教学改革研究——以“设计认知与思维导入”课程为例

在"新学分"背景下对设计基础课重新定位,整合教学资源,优化课程设置,打造多专业"设计通识课程"。"设计认知与思维导入"课程针对设计类专业培养诉求,把握设计认知和思维规律的通识性,量身打造通识化的课程内容和个性化的专业接口,实现与后续课程的精准对接。在一门课程中达到"通识"与"专业"的结合。让学生初步了解创意设计的流程、方法,提升学生的创意素养,从而使学生打开思路、举一反三,培养学生的创意思维能力。     

阅读教学中提升学生系统思维能力的有效方法

"思维能力发展和提升"是语文核心素养之一.在阅读教学中,教师需要引导学生发现问题、解决问题并提升其思维能力.教师在教学过程中需借助一定的学习支架,组织有效的阅读活动,通过语文阅读教学提升学生的思维能力.拟结合教学实践,从问题设置、过程批注、情境创设等方面探讨阅读教学中思维能力提升的有效方法.     

(NH4)3B11PO19F3: a deep-UV nonlinear optical crystal with unique [B5PO10F]∞ layers

Deep-ultraviolet (DUV) nonlinear optical (NLO) crystals that can extend the output range of coherent light below 200 nm are pivotal materials for solid-state lasers. To date, KBe₂BO₃F₂ (KBBF) is the only usable crystal that can generate DUV coherent light by direct second harmonic generation (SHG), but the layered growth habit and toxic ingredients limit its application. Herein, we report a new fluoroborophosphate, (NH₄)₃B₁₁PO₁₉F₃ (ABPF), containing four different functional units: [BO₃], [BO₄], [BO₃F] and [PO₄]. ABPF exhibits a KBBF-like structure while eliminating the limitations of KBBF crystal. The unique [B₅PO₁₀F]_∞ layers enhance ABPF’s performance; for example, it has a large SHG response (1.2 × KDP) and a sufficient birefringence (0.088 at 1064 nm) that enables the shortest phase-matching wavelength to reach the DUV region. Meanwhile, the introduction of strong B-O-P covalent bonds decreases the layered growth habit. These findings will enrich the structural chemistry of fluoroborophosphate and contribute to the discovery of more excellent DUV NLO crystals.     

适应课改形势改进思想品德课教学

为适应新课改的要求,在思想品德的教学实践中,我尝试从以下几个方面作改进。 1．课前做好充分的准备 教学是教师的“教”与学生的“学”的统一。现代教学理论指出,教学过程是师生交流、积极互动、共同发展的过程。只有师生之间的积极交流,才能达到共识、共享、共进、教学相长的目的。师生之间、学生之间要成功交流,就必须做好课前的充分准备。     

The neutrophil-lymphocyte ratio to predict poor prognosis of critical acute myocardial infarction patients: a retrospective cohort study

IntroductionInflammation is closely related to adverse outcomes of acute myocardial infarction (AMI). This study aimed to evaluate whether neutrophil-lymphocyte ratio (NLR) can predict poor prognosis of critical AMI patients.Materials and methodsWe designed a retrospective cohort study and extracted AMI patients from the “Medical Information Mart for Intensive Care-III” database. The primary outcome was 1-year all-cause mortality. The secondary outcomes were 90-day and in-hospital all-cause mortalities, and acute kidney injury (AKI) incidence. The optimal cut-offs of NLR were picked by X-tile software according to the 1-year mortality and patient groups were created: low-NLR (< 4.8), high-NLR (4.8 - 21.1), and very high-NLR (> 21.1). Cox and modified Poisson regression models were used to evaluate the effect of NLR on outcomes in critically AMI patients.ResultsFinally, 782 critical AMI patients were enrolled in this study, and the 1-year mortality was 32% (249/782). The high- and very high-NLR groups had a higher incidence of outcomes than the low-NLR group (P < 0.05). The multivariate regression analyses found that the high- and very high-NLR groups had a higher risk of 1-year mortality (Hazard ratio (HR) = 1.59, 95% CI: 1.12 to 2.24, P = 0.009 and HR = 1.73, 95% CI: 1.09 to 2.73, P = 0.020), 90-day mortality (HR = 1.69, 95% CI: 1.13 to 2.54, P = 0.011 and HR = 1.90, 95% CI: 1.13 to 3.20, P = 0.016), in-hospital mortality (Relative risk (RR) = 1.77, 95% CI: 1.14 to 2.74, P = 0.010 and RR = 2.10, 95% CI: 1.23 to 3.58, P = 0.007), and AKI incidence (RR = 1.44, 95% CI: 1.06 to 1.95, P = 0.018 and RR = 1.34, 95% CI: 0.87 to 2.07, P = 0.180) compared with low-NLR group. NLR retained stable predictive ability in sensitivity analyses.ConclusionBaseline NLR is an independent risk factor for 1-year mortality, 90-day mortality, in-hospital mortality, and AKI incidence in AMI patients.