教学课程资源库 更多>>

关键词： 武术   糖   ATP-CP   乳酸   酵解   运动生理学   能量代谢   营养素   运动训练  

摘要： 根据运动生理学有关运动中人体能量代谢的相关理论,对武术运动训练中补充糖类营养的重要性作了相关探讨。在分析武术训练特点的基础上,指出武术训练中供能系统主要为ATP-CP系统和糖酵解系统,并就糖补充的时机、种类和量等作了详细阐述,以求为竞技武术运动训练中糖营养补充提供有益的参考。

关键词： 病理生理学   实验设计   新方案  

摘要： 实验总目的与要求:(1)通过给定条件的简单动物实验的设计,使学生初步学会动物实验的设计方法并初具实验性研究疾病的能力.(2)在自己设计的前提下,自己动手进行实验,培养学生动脑和动手的能力.

关键词： 中老年人   健身锻炼   运动负荷   运动生理学  

摘要： 按照美国运动医学会推荐的中老年人运动锻炼标准,通过问卷访谈与心率检测从运动生理学角度分析杭州市社区中老年居民健身活动的质与量.结果发现:体育锻炼前,64.1%的锻炼者未做任何健康检测或体能评估;在运动中,以适宜强度运动者为59.6%;在运动量方面,43.5%符合推荐标准;社区中老年人的热身活动参与率较高达到61%;但运动后42.8%的人缺乏必要的身体整理与放松.笔者认为:健身者运动前缺乏对自身健康状况的了解,对运动的绝对与相对禁忌证认识不足,对运动中的潜在危险缺乏监控与指导;由于运动强度过低或过高以及运动时间的不足,许多健身者的运动没有起到对健康的维持与提升,未达到锻炼效果,需要进行健康教育的干预指导.

关键词： Genomics   Proteomics   Bacillus subtilis   Bacterial Proteins   Electrophoresis   Gel   Two-Dimensional   Oxidative Stress   Research Support   Non-U.S. Gov't  

摘要： Complementing proteomic technologies enable an unbiased view of cellular adaptation and thus may provide a new understanding of cellular physiology, particularly for microorganisms because a major fraction of their proteome is accessible to currently available technology. In combination with transcriptional profiling expression proteomics provides access to interesting candidate genes and proteins that will then need to be validated and supplemented by traditional physiological, biochemical and genetic approaches. After a description of the current status of the technology, we display the potential of microbial proteomics using the model organism Bacillus subtilis as example. Starting from a proteome map a proteomic view of the metabolism will be provided. Furthermore, we demonstrate that proteomics complemented by transcriptomics is also useful for the study of stress and starvation responses and that integration of these data will lead to a comprehensive understanding of the adaptational network of bacterial cells. Thus, B. subtilis constitutes a highly versatile and tractable model organism for the study of generic stress responses and the expertise that has been gained can easily be transferred to the study of the cellular physiology of related Gram-positive pathogens and their pathophysiology.

关键词： amino acids   gene expression   lucerne   Medicago sativa L.   phosphate nutrition   phosphate transporter   protein   starch   sugar  

摘要： Phosphorus deficiency reduces forage yield and stand persistence of alfalfa (Medicago sativa L.). Our objectives were to isolate and characterize a high-affinity phosphate-transporter (P-transporter) from alfalfa roots (Medicago sativa L.);determine how phosphorus (P) nutrition impacts P-uptake, growth, and carbohydrate and protein metabolism of alfalfa cells;and learn how expression of the P-transporter is influenced by P nutrition. An 1087-base pair (bp) sequence was isolated using RT-PCR that possessed high nucleotide and amino acid sequence similarity to high-affinity P-transporters. Cultured cells were sampled at 3-day intervals for 9 days while growing in media containing P concentrations ranging from 0 to 10 mM. Media P concentrations declined rapidly in all P treatments by day 6. Low media P concentrations (0, 0.1 and 0.5 mM) reduced cell growth rates compared to higher media P levels (2.5, 5 and 10 mM). Suspension cell cultures supplied 0.5, 2.5, 5, and 10 mM P had lower starch concentrations by day 3 compared to cells cultured in media containing 0 and 0.1 mM P. Steady-state transcript levels for the high-affinity P- transporter were high in P-deprived cells, but declined within 1 day when cells were provided 10 mM P.

关键词： 生理学   实验教学   改革  

摘要： 培养掌握一定理论基础知识,具有较强实际工作能力的实用型人才,是医学专业学校教育的主要目的.而生理实验教学在培养"实用型人才"方面起着至关重要的作用.生理实验作为一门医学学生必修课,要求很高,它既要学生善于动脑,观察和思考各种实验现象;又要善于动手,以便牢固掌握实验基本操作和技能.新教学大纲实施后生理实验课时大幅度压缩,但内容并未删减.要利用较短的课时达到理想的实验教学目标,实验教学改革势在必行.

关键词： allergy   CRH   histamine   mast cells   migraines   stress  

摘要： Mast cells are critical players in allergic reactions, but they have also been shown to be important in immunity and recently also in inflammatory diseases, especially asthma. Migraines are episodic, typically unilateral, throbbing headaches that occur more frequently in patients with allergy and asthma implying involvement of meningeal and/or brain mast cells. These mast cells are located perivascularty, in close association with neurons especially in the dura, where they can be activated following trigeminal nerve, as well as cervical or sphenopalatine ganglion stimulation. Neuropeptides such as calcitonin gene-related peptide (CGRP), hemokinin A, neurotensin (NT), pituitary adenylate cyclase activating peptide (PACAP), and Substance P (SP) activate mast cells leading to secretion of vasoactive, proinflammatory, and neurosensitizing mediators, thereby contributing to migraine pathogenesis. Brain mast cells can also secrete proinflammatory and vasodilatory molecules such as interieukin-6 (IL-6) and vascular endothelial growth factor (VEGF), selectively in response to corticotrop in-releasing hormone (CRH), a mediator of stress which is known to precipitate or exacerbate migraines. A better understanding of brain mast cell activation in migraines would be useful and could lead to several points of prophylactic intervention. (c) 2005 Elsevier B.V. All rights reserved.

关键词： 实验教学   教学改革   综合能力  

摘要： 目的探讨和研究生理学实验教学改革对培养学生能力、提高教学质量的影响。方法将2004级临床医学专业的学生随机分成对照组和实验组。对照组沿用传统的生理学实验教学内容和教学方法。实验组采用改革后的实验教学内容和教学方法。结果实验组学生综合能力考核的各项结果明显优于对照组（P〈0．01）。问卷调查显示94．95％的学生认为实验教学内容和方法的改革有必要。大多数学生认为学习本课程后提高了综合运用知识能力、综合分析问题能力和实验动手能力。结论启发式、问题式教学方法和开设综合性实验有利于学生综合能力的培养。