共查询到20条相似文献,搜索用时 78 毫秒
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正我国大多数高等医学院校在组织学与胚胎学课程设置上存在几个特点:(1)理论课时多,实验课时少;(2)理论课满堂灌输专业知识;(3)基础与临床脱节;(4)教师在人才培养中主导性很大,而学生主观能动性发挥较少。近年来,本教研室已逐渐意识到教学中存在的不足,已在实验考试、形成性评价及多元化考核方面进行了改革[1-3],在教学中采用互助学习小组方式和混合式 相似文献
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过去认为病理生理学实验课的目的有三:(1) 验证课堂理论;(2) 训练基本操作技能;(3) 培养独立思考独立工作能力。但实际上长期以来实验课形成了以验证课堂理论为主,很少注意培养同学独立思考独立工作能力。近年来实验课教学的这种弊病引起了许多病理生理工作者的重视,呼吁实验课必须尽快进行改革。全国高等医学院校协作教材《病理生理学实验指导》(以下简称实验教材)的出版,对实验课提出了新的要求,并在其《前言》中指出:“病理生理实验课的目的,除了验证课堂 相似文献
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组织学是一门基础医学形态学学科 ,标本考试是教学的重要环节 ,试题的质量是衡量考试效果最重要的因素。笔者在教学过程中建立了组织学标本音像题库 ,并经过实践应用和不断完善 ,目前已广泛用于本院大多数专业的实验考核。本文以泸州医学院临床医学系 99级 3 2个班为对象 ,对其标本考试成绩进行深入分析 ,旨在通过用量化手段评价考试成绩和标本考试试题库的质量 ,改革考试方法 ,提高考试的客观性和科学性。1 材料与方法1.1 组织学标本音像试题库的建立硬件设备 :显微摄像系统、闭路电视系统等。制作方法 :用显微摄像系统将实验课学生观察… 相似文献
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为正确评价学生应用知识解决问题的能力,突出培养具有创新能力的医学人才,教研室通过平时阶段性考试、绘图作业、随堂抽问、综合性实验考试、理论闭卷考试等多元化考试形式,以基础知识为主、突出学生综合能力与创新能力的考核内容为导向,总成绩等于综合理论考试占70%(期末理论占60%,课堂提问10%)+综合标本考试占30%(期末多媒体标本考试10%,组织芯片考试10%,平时随堂考核与绘图作业10%)的评价方式,创立了科学的组织学考试模式,使成绩结构多样化、考试形式多元化,能更真实地反映学生的学习情况,也提高了教学质量。 相似文献
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A further analysis of already published data supports the position that retardates of low ability level less frequently have retarded siblings, retarded parents, and parents low in occupational level than do retardates higher in ability level. The analysis supports the position that there are two types of retarded individuals, persons retarded as a result of gene or chromosomal anomalies, brain injury, etc., who more frequently occur in the lower-level retardate group, and persons whose retardation represents polygenic segregation, who more frequently occur in the higher-level group. 相似文献
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背景:局部注射具有成骨作用的辛伐他汀,可显著增加骨质疏松大鼠股骨颈及股骨髁部的骨密度及力学强度,分析局部注射辛伐他汀对股骨髁骨小梁的影响。
目的:进一步研究骨质疏松大鼠股骨内局部注射辛伐他汀对股骨髁骨小梁的影响。为将辛伐他汀应用于临床骨质疏松局部治疗提供实验基础。
方法:18只雌性SD大鼠双侧卵巢切除后3个月,制备大鼠骨质疏松模型。实验大鼠随机数字表法均分为3组,分别在实验大鼠的右侧股骨髓腔内单次注射辛伐他汀溶液5 mg、10 mg,对照组单纯注射空白载体。分别在注射后1个月处死大鼠并取材。Micro-CT扫描并定量分析骨组织形态变化。
结果与结论:给药后1个月,Micro-CT扫描结果显示,辛伐他汀治疗组的骨微结构参数如骨皮质厚度、骨小梁密度及连接率明显优于对照组。说明疏松骨骼单次注射小剂量辛伐他汀可显著促进股骨髁部骨小梁改建,改善骨骼微结构,可为强化局部、防治骨质疏松骨折的新选择进一步提供实验基础。 相似文献
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石斛属民族药用植物的分类及生药学研究 总被引:2,自引:0,他引:2
中药石斛早在《神农本草经》中就被列为上品,其应用历史悠久,具有养阴生津、补肾益气、润喉护嗓、活血明目、抗癌防老等功效。本文对国内外石斛属民族药用植物的分类及生药学研究进行了综述。 相似文献
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目的我科自2001~2005年4月对59例67膝的骨性关节炎(0A),进行关节镜检查及镜下清理术。方法镜检:膝关节骨性关节炎伴不同程度滑膜炎,滑膜皱壁粘连纤维片,关节软骨不同程度破坏。镜下清除增生滑膜,松解粘连,去除剥脱软骨、修复关节面。结果随访2月~4年,平均1.5年,术后综合评估2月~1年,优良率94%;1~2年,优良率79.2%;2年以上优良率54.8%。结论关节镜对膝关节骨性关节炎诊断能提供了比较全面的资料,并对骨性关节炎早期有良好疗效,具有创伤小、恢复快、并发症少和重复治疗等优点。 相似文献
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Since the cutaneous veins of the four limbs have been used as autogenous grafts in the treatment of cardiovascular disorders, knowledge of distribution of the valves is increasingly required depending upon the use. In the gross anatomical study of distribution of valves of the trunci venae, there has been argument about locational relationships between the venous roots and the valves in the vicinity of the roots and the inter-valvular distance. However, there have been only few reports discussing detailed information about valves of the cutaneous veins of the four limbs. The authors observed patterns of distribution of the cutaneous venous valves of the four limbs of cadavers prepared for practice in anatomy. The following parts were excised from each cadaver: the cephalic, basilic, and the great saphenous veins, which originate from the acral venous network and flow into the proximal deep veins, and the venous roots communicating with these veins. An incision was made on each excised vein in the direction of the long axis under observation with a stereoscopic microscope, and the inter-valvular distance and the distance between the valve and the orifice of venous root in the vicinity of the valve were measured. The inter-valvular distance varied with type of the truncus venae, and it varied according to area even in the same truncus venae. 相似文献
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L. S. Eliseeva 《Bulletin of experimental biology and medicine》1993,115(4):428-431
Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 115, N
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4, pp. 401–404, April, 1993 相似文献
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J Siddiqui A H Siddiqi T Itoh T Matsumoto 《Molecular and biochemical parasitology》1985,15(2):143-148
Sterols of three digenetic trematodes were isolated and characterized by infrared and 1H nuclear magnetic resonance spectroscopies, and gas-liquid chromatography and gas chromatography-mass spectrometry. Sterols identified were cholesterol, cholestanol, 24-methylcholesterol, 24-methylcholestanol, 24-ethyl-22-dehydrocholesterol, 24-ethyl-22-dehydrocholestanol, 24-ethylcholesterol and 24-ethylcholestanol. 相似文献
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V. N. Yakovenko 《Bulletin of experimental biology and medicine》1999,128(4):1045-1048
New electrophysiologic devices were used for the diagnostics of the state of excitable structures in the gastrointestinal
tract and correction of their motor functions. Bioelectrical and biomechanical activities form the basis of functioning of
internal organs. The mechanisms of generation of slow bioelectrical activity that are important for clinical and physiological
studies are described. One of these mechanisms is a capacitance parametric transducer converting the energy of contractions
into specific electric signals reflecting muscle functions. Another mechanism results from slow oscillations of resting potentials
of interrelated excitable cells in large neuromuscular structures of internal organs. The elaborated procedure is efficient
for preventing early postoperative paresis of the gastrointestinal tract.
Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 128, No. 10, pp. 448–452, October, 1999 相似文献
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Yu. F. Isakov V. N. Fedorova V. V. Shafranov A. V. Butorina E. E. Faustova S. S. Bykovskaya N. V. Fomicheva 《Bulletin of experimental biology and medicine》1995,119(6):647-650
Assessment of the aftereffects of cryoexposure and ultrahigh-frequency cryoexposure on hemangioma tissue of various types,
cavernous and squamous, showed a higher cryogenic effect in hemangiomatous tissue preexposed to ultrahigh-frequency waves.
A quantitative criterion is proposed for assessing the efficacy of the studied methods of exposure.
Translated fromByulleten' Eksperimental'noi Biologii i Meditsiny, Vol. 119, N
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6, pp. 669–672, June, 1995 相似文献