9个不同居群虎耳草光合特性及有效成分含量分析

为比较筛选虎耳草优良品种,运用LI-6400便携式光合仪对虎耳草叶片光合特性进行了测定,并且采用HPLC测定了虎耳草全株岩白菜素和没食子酸含量.结果表明:湖南中方仙人谷虎耳草叶片净光合速率最高,为6.85μmol·m-2·s-1,该居群虎耳草的岩白菜素含量也最高,为3.94 mg·g-1.相关性分析结果表明,岩白菜素含量与净光合速率显著正相关,与总叶绿素含量极显著正相关;没食子酸含量与光合参数的相关系数均未达显著水平.     

Enhancement of anatomical learning and developing clinical competence of first‐year medical and allied health profession students

Hands‐on educational experiences can stimulate student interest, increase knowledge retention, and enhance development of clinical skills. The Lachman test, used to assess the integrity of the anterior cruciate ligament (ACL), is commonly performed by health care professionals and is relatively easy to teach to first‐year health profession students. This study integrated teaching the Lachman test into a first‐year anatomy laboratory and examined if students receiving the training would be more confident, competent, and if the training would enhance anatomical learning. First‐year medical, physician assistant and physical therapy students were randomly assigned into either the intervention (Group A) or control group (Group B). Both groups received the course lecture on knee anatomy and training on how to perform the Lachman test during a surface anatomy class. Group A received an additional 15 minutes hands‐on training for the Lachman test utilizing a lightly embalmed cadaver as a simulated patient. One week later, both groups performed the Lachman test on a lightly embalmed cadaver and later completed a post‐test and survey. Students with hands‐on training performed significantly better than students with lecture‐only training in completing the checklist, a post‐test, and correctly diagnosing an ACL tear. Students in Group A also reported being more confident after hands‐on training compared to students receiving lecture‐only training. Both groups reported that incorporating clinical skill activities facilitated learning and created excitement for learning. Hands‐on training using lightly embalmed cadavers as patient simulators increased confidence and competence in performing the Lachman test and aided in learning anatomy. Anat Sci Educ 7: 181–190. © 2013 American Association of Anatomists.     

GSM手持设备射频芯片内集成多相滤波器的设计

作为低中频接收机关键模块之一,多相滤波器在镜像抑制和邻道干扰方面扮演着重要的角色.它的性能指标直接影响整个接收链路的灵敏度.本文采用有源RC电路架构设计了一个五阶切比雪夫多相滤波器.仿真结果表明,该滤波器的中心频率在100kHz,3dB带宽是220kHz.最大电压增益为63dB,镜像抑制比大于30dB.设计的滤波器完全满足GSM手持设备的要求.     

高校医学学报青年编辑的培养及其自身发展

编辑发展的过程其实就是编辑不断学习,形成自己的编辑理念从而实现自身价值的过程。编辑可以通过编辑间的交流、向审稿人和作者请教等途径来实现知识的累积,提高编辑对论文的鉴别能力;通过各种途径主动学习,促进编辑自身的发展。而编辑的良性发展只有在良好工作环境和学习氛围中才能实现。     

体育生活方式与健康

健康是人类生存发展的基本要素，随着科学技术的发展和人民生活水平的提高．生活方式的变化，出现许多现代文明病。本文主要探计生活方式、体育生活方式与健康之间的关系，以此促进人们提高生活质量，建立健康、文明和科学的体育生活方式。     

本科生物学实验教学新体系的构建

从创新的角度重新认识实验教学,对本科生物学实验教学进行改革,对其目标定位、特征及学生的评价方法进行引阐述。     

活性半月板移植

本研究采用新鲜半月板，保持其活性进行移植，用于修复损伤退变的半月板。有12例患在术后2年仍可见活性半月板组织。术后用HSS评分来评价，第1年得分高，超过175的占72％，4年后67％的患评分仍然高于175，22％的人评分在100－175之间，11％的人评分低于100。短期的术后随访不足以得出正确结论，但目前尚未发现负面影响，对其能否取得功能上的远期疗效还需进一步探索。     

The Skills of A Practical Writing for a Tour Guide(Ⅰ)--Language Differentials

This thesis is about the skills of practical writing for Tour Guide.In this article,the differences between English and Chinese are discussed.As a Tour Guide,one needs to grasp these characteristics of the two languages,and has ability of describing sceneries beautifully and accurately by writing.     

河北省高校乒乓球运动开展现状及对策研究

采用文献资料法、问卷调查法和数理统计法，对河北省高校乒乓球运动开展现状进行研究。指出了当前河北省高校乒乓球运动发展过程中课程设置、场地器材、师资队伍、竞赛组织等方面的问题，并提出了对策。     

积极财政政策的含义及成效分析

积极财政政策作为一种相机选择的短期政策 ,在我国已连续实施了 5年。短期政策中长期化在我国是一次新的尝试。从我国实施积极财政政策的背景出发 ,阐述积极财政政策的涵义 ,并系统分析和总结实施这一政策以来所取得的成效 ,充分肯定了积极财政政策对国民经济的拉动作用