视交叉与蝶鞍关系的临床解剖学研究     

张国徽  董建峰  齐效勇 《河北北方学院学报(医学版)》2005,22(2):5-6

目的:研究视交叉的解剖特点,进而为垂体肿瘤切除手术提供解剖学依据.方法:在20例成年男性头部标本上,对视交叉进行观察与测量.结果:视交叉前缘与鞍结节相距4.42±1.17mm,视交叉前缘与交叉前沟相距7.0±1.1mm,视交叉与镰状韧带颅前窝附着处后缘相距10.7±1.02mm,视交叉宽度为10.6±1.2mm,在出视神经管、入颅处,两侧视神经内缘相距14.8±1.9mm.结论:视交叉的解剖关系是垂体瘤手术成功与否的关键.  相似文献   

教育见习与师范生职前专业胜任力的提升     

彭丽云 《桂林师范高等专科学校学报》2007,21(4):108-111

从教育见习的特点与性质分析入手,结合教师胜任力结构要求,探讨教育见习在师范生职前专业胜任力提升中的地位、作用,并就此对当前师范院校的教育见习工作提出改进建议。  相似文献   

试谈新闻作品思想的形成     

刘诗静  王侠 《鸡西大学学报》2003,3(2):79-79,90

新闻的思想性是近年来新闻界关注的一个议题。笔者从历史、宏观和微观三个方面去论证新闻作品思想性形成的主客观条件，从而证实了新闻思想性形成的几个重要条件和基础，使新闻作品的思想性形成了一个比较清晰的论证。  相似文献   

Validation of the Microsoft Kinect® camera system for measurement of lower extremity jump landing and squatting kinematics     

Moataz Eltoukhy  Adam Kelly  Chang-Young Kim  Hyung-Pil Jun  Richard Campbell 《Sports biomechanics / International Society of Biomechanics in Sports》2016,15(1):89-102

Cost effective, quantifiable assessment of lower extremity movement represents potential improvement over standard tools for evaluation of injury risk. Ten healthy participants completed three trials of a drop jump, overhead squat, and single leg squat task. Peak hip and knee kinematics were assessed using an 8 camera BTS Smart 7000DX motion analysis system and the Microsoft Kinect® camera system. The agreement and consistency between both uncorrected and correct Kinect kinematic variables and the BTS camera system were assessed using interclass correlations coefficients. Peak sagittal plane kinematics measured using the Microsoft Kinect® camera system explained a significant amount of variance [Range_hip = 43.5–62.8%; Range_knee = 67.5–89.6%] in peak kinematics measured using the BTS camera system. Across tasks, peak knee flexion angle and peak hip flexion were found to be consistent and in agreement when the Microsoft Kinect® camera system was directly compared to the BTS camera system but these values were improved following application of a corrective factor. The Microsoft Kinect® may not be an appropriate surrogate for traditional motion analysis technology, but it may have potential applications as a real-time feedback tool in pathological or high injury risk populations.  相似文献   

Using Google Forms to track library space usage     

Beth Daniel Lindsay 《Journal Of Access Services》2016,13(3):159-165

This article is a response to the excellent “Using Mobile Technology to Observe Student Study Behaviors and Track Library Space Usage” by Susan Thompson. Thompson reviews the literature regarding user counts on mobile devices and describes the California State University San Marcos (CSUSM) Library's evaluation of SUMA, Counter+, and CloudOn. After trialing these mobile technologies, CSUSM selected CloudOn. At New York University Abu Dhabi, we use Google Forms to conduct user counts on an iPad and Google Sheets to evaluate these data. We find that Google Forms are easy to set up, modify as necessary, and present the data in easy-to-manipulate spreadsheets.  相似文献   

酸碱滴定可行性的经典理念及其存在的问题   总被引：2，自引：0，他引：2  

王趁义 《湖州师范学院学报》2005,27(1):41-43

酸碱滴定可行性的经典理念是以终点误差为根据，以弱酸的平衡浓度Csp和离解常数Ka来表征酸碱滴定可行性，并把CspKa≥10^-8作为表征酸碱滴定反应可行性的判据．这种观点是片面的，只有根据终点观测误差推导酸碱滴定可行性才有实际意义，即根据平衡浓度Csp和酸与碱之间滴定反应的平衡常数Kt来表征酸碱滴定可行性．相应地，表征酸碱滴定反应可行性的判据应该是CspKt≥10^6．  相似文献   

新型化学电源--燃料电池     

马德良  路再生 《洛阳师范学院学报》2004,23(5):49-52

燃料电池是一种等温并直接将储存在燃料和氧化剂中的化学能高效、环境友好地转化为电能的新型发电装置．燃料电池不受热机效率的限制，能量转换效率高，无污染、无噪音，具有满足环境保护的要求．预计燃料电池系统将在洁净煤燃料电池电站、电动汽车、移动电源、不间断电源、潜艇及空间电源等方面有着广泛的应用前景和巨大的潜在市场．本文介绍了燃料电池的的优点、主要种类、工作原理、国内外发展概况以及燃料电池的前景展望。  相似文献   

联胎组织病理对比分析及临床联系     

闵静  景玉萍  沈文英  严菊华 《孝感职业技术学院学报》2006,9(2):85-88

目的:对少见的胸腹联体双胎婴儿进行病理组织学分析,为临床诊断与治疗提供依据;方法:常规组织病理切片后显微镜下观察;结果:A、B女婴大部分脏器结构相似,子宫腺体密度差异性较大,各脏器存在程度不同的细胞水肿现象;结论:①联体在胚胎发育过程中仍然存在着一定的差异,②联体常因分娩异常出现死亡,加强产前诊断并采取相应措施尤为重要。  相似文献   

Triadic interaction in clinical task-based interviews with mathematics teachers     

Boris Koichu  Guershon Harel 《Educational Studies in Mathematics》2007,65(3):349-365

A clinical task-based interview can be seen as a situation where the interviewer–interviewee interaction on a task is regulated by a system of explicit and implicit norms, values, and rules. This paper describes how documenting and mapping triadic interaction among the interviewer, the interviewee, and the knowledge negotiated can be used to increase procedural replicability of the interview and accuracy of drawn conclusions about the interviewee’s thinking process. Excerpts from interviews with 25 inservice mathematics teachers working on a task to make up a problem whose solution requires division of two fractions are discussed. The excerpts illustrate the relationship between methodological decisions taken by the interviewer during the interview and the applicability of the interview output to the research questions. A divergent analysis of the interviews with these teachers, which spanned over two years and were conducted by four interviewers, is used to offer a framework for analyzing data collected in clinical task-based interviews.  相似文献   

海洋综合调查船设置开放航次之构想     

赵忠生  黄磊  李延刚  袁志伟 《实验室研究与探索》2006,25(7):758-760

在日益重视现场科学观测和考察研究的海洋科学发展的现阶段,建立海上观测可移动共享平台,设置基于长期观测的开放航次,在海洋环境观测、生物资源调查和工程勘测方面具有独到之处。  相似文献