论光与眼睛及色彩的关系

“花开红树乱莺啼．草上平湖白鹭飞。”试想．如果没有太阳，你会感知到花开鸟飞的美景吗？也不会有什么蓝天、白云、青山、绿水、红色的苹果、黄色的柑橘、金首饰、银餐具、宽阔的马路、高大的楼房、美丽的脸蛋、华丽的时装等等。如果是在一片漆黑的夜晚里，再好看的一切，也都会失去它的魅力。     

植物生物学实验教学改革

通过更新植物生物学实验内容,建立模块化实验教学内容体系,实行灵活和开放式的教学方法和全面综合的考核机制,努力培养学生的创新意识、实际操作技能和创新能力。     

Yangxueqingnao particles inhibit rat vascular smooth muscle cell proliferation induced by lysophosphatidic acid

Objective: To observe the effect of Yangxueqingnao particles on rat vascular smooth muscle cell (VSMC) proliferation induced by lysophosphatidic acid (LPA). Methods: The amount of3H-TdR (3H-thymidine) admixed in cultured rat VSMC was measured and mitogen-activated protein kinase (MAPK) activity and lipid peroxidation end product malondialdehyde (MDA)content of the VSMC were assayed. Results: 1×10-9, 1×10-8, 1×10-7 mol/L LPA in a concentration dependent manner, induced the amount of 3H-TdR admixed, MAP kinase activity, and MDA content of the cultured rat VSMC to increase. However, 5%, 10%,and 15% Yangxueqingnao serum preincubation resulted in a decrease of 23.0%, 42.0%, and 52.0% (P＜0.01) respectively in the amount of 3H-TdR admixed, a decline in VSMC MAP kinase activity of 13.9% (P＜0.05), 29.6% (P＜0.01), and 48.9% (P＜0.01)respectively, and also, a decrease in MDA content of VSMC of 19.4%, 24.7%, and 43.2% (P＜0.01) respectively, in the 1×10-7mol/L LPA-treated VSMC. Conclusions: LPA activates the proliferation and lipid peroxidation of VSMC in a concentration dependent manner. The LPA-induced VSMC proliferation is related to the activity of MAP kinases, enzymes involved in an intracellular signalling pathway. The results of the present study showed that Yangxueqingnao particles can effectively inhibit LPA-induced VSMC proliferation, MAP kinase activation, and reduce lipid peroxidative lesion.     

我国新型农村合作医疗制度实施中值得关注的几个问题

新型农村合作医疗制度的试点工作,通过3年多的试点,取得了可喜的成绩,但仍然存在着发展不平衡、资金筹集难度大、管理人员及技术力量薄弱、监管力度不够等问题,如何建立稳定长效的筹资机制,完善地方政府和医疗机构的监管制度,是提高新型合作医疗保障水平的关键所在。     

大医华佗的医术、医德及医著

华佗是汉魏时期一代全能名医，医术精湛，医德高尚，具有大医风范。其医术在养生、方药、针灸、外科诸领域都达到了至高境界。用麻沸散对患者实施外科手术，只是其全能中之一能。华佗高尚的医德对纠正当今医务界的不正之风有很强的警示意义。华佗有丰富的医著流传下来。说其医著未能传世，值得商榷。     

生物学教学中学生思维训练实验报告

分析了我院高职生《医学生物学》失分的主要原因，制定了思维训练的实验方案，通过整合教材、优化组合教学媒体、实施“以问题为中心”的教学模式、开设选修课、改革考核内容和方式，让学生学在其中、思在其中、乐在其中，提高了学生思维能力和生物学学习质量。     

强化管理,提高医疗设备使用效益

提高医疗设备的使用效益,是医疗设备投资管理中的关键环节。针对医院现有的不同资金来源、不同使用性质的医疗设备,采取恰当的管理模式和合理有效的评价体系,强化管理,使医疗设备能够真正体现其投资的价值。     

对农村居民医疗保障问题的思考

农村居民的医疗保障存在不少问题 ,应采取必要的一些政策性措施 :加强对农村的医疗卫生投入和预防保健 ,完善合作医疗 ,以及其他形式的农村医疗保障形式。     

Reasons for suboptimal learning in medical microbiology

Medical microbiology presents a challenge to undergraduate students, mostly due to its extensive content and complexity of unfamiliar terminology. In addition to a narrative review of the literature, we report findings on students’ motivation for and approach to learning in the Infections module of an undergraduate medical curriculum, and their perceived lack of retention of knowledge acquired in the module, as determined by a self-administered, anonymous questionnaire. When students experienced information overload, they reverted to performance goals and the wrong motivation for learning. Their focus turned primarily to being successful in tests and examinations, and they consequently adopted a surface approach to learning. Surface learning and memorisation of facts without understanding its content usually result in moderate retention of knowledge, which could handicap the development of clinical reasoning. However, the concern about students’ perceived poor retention of knowledge can be laid to rest – the prognosis is not discouraging after all.     

白细胞介素18及其生物活性

白细胞介素18(IL-18)是新近发现的一种细胞因子，能诱导TH1细胞等产生IFN-r，GM-CSF等细胞因子及Fas配体，具有增强THI细胞和NK细胞的细胞毒作用等免疫调节功能，在抗病原微生物感染、抗肿瘤及抗超敏反映等方面具有潜在的应用前景，同时，它也是内毒素诱导的小鼠肝坏死性休克的关键因子。