首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 62 毫秒
1.
以问题为基础的教学法在医学课程中的应用   总被引:4,自引:0,他引:4  
本文介绍了以问题为基础的教学(PBL)的运行规则与适用对象,指出PBL的引导示范作用不可低估。同时,还对鉴定PBL教学实施效果的标准和教学规律在基础医学教育中的运用这两方面的问题进行了论述,进而提出应当将PBL教学与国家执业医师考试结合起来。  相似文献   

2.
《计算机基础与应用》教学中实施PBL教学法初探   总被引:1,自引:0,他引:1  
PBL教学模式是近年来国际上受到广泛关注的一种教学模式,探讨了PBL教学模式在《计算机基础与应用》教学中的应用,指出了PBL教学应用于《计算机基础与应用》教学的优势,设计了PBL应用于该课程教学的基本流程,并提出了PBL应用中需要注意的一些问题。  相似文献   

3.
生理学教学中以问题为基础学习应用效果的评价   总被引:2,自引:0,他引:2  
以问题为基础学习(problem-baged learning,PBL)是一种有效的教学方法,北京大学医学部生理学与病理生理学系从2004年起开展PBL教学.为了改善PBL教学效果,本系对PBL教学进行了连续3年的跟踪调查,收集了大量数据,形成了对PBL较为客观的评价.这些反馈信息既显示了PBL教学方法的优势,也发现了其中存在的问题,为继续推进PBL教学、改善教学效果提供了依据.  相似文献   

4.
PBL教学模式是留学生教学的发展趋势   总被引:14,自引:3,他引:14  
介绍了以问题为基础的学习(PBL)教学模式的衍生发展、目前留学生教学的现状和对曼彻斯特大学PBL教学的借鉴与思考,结合几年来的留学生教学经验和在英国曼彻斯特大学的教学学习体会,阐述了PBL教学模式是留学生教学发展趋势的观点,进而提出制定与实际相适应符合专业特点的PBL教学模式的必要性。  相似文献   

5.
PBL教学法的研究综述和评价   总被引:33,自引:6,他引:27  
PBL是“基于问题式学习”的教学法,文章依据现有的PBL教学研究成果和自己的PBL教学体会,剖析了实施PBL教学法的必要性、意义和PBL教学法的优势,总结归纳出PBL教学法的一般模式和实施过程中常见的主要问题,并认为:PBL教学法与传统教学法相比有明显优势,值得推广。  相似文献   

6.
以问题为基础的学习(problem-based learning,PBL)已经在国内得到广泛应用,但教学实践过程中对PBL的认识仍存在许多误区。如,把问题误解为要求回答题目而非需要加以解决的疑难,把案例教学(case-based learning, CBL)等同为PBL,把以团队为基础的学习(team-based learning,TBL)误认为PBL,降低了PBL教学效果。为此,结合文献及教学实践经验,在简要探讨PBL教学中“问题”内涵的基础上,比较PBL与CBL、PBL与TBL、PBL与翻转课堂的特征和内涵,从而对PBL教学认识的误区进行深入剖析。由此提出,只有利用临床案例情景引导学生发现自身解决问题所需知识的缺陷,并通过学生自主学习获取隐含于问题背后的科学知识的过程,才是真正意义上的PBL。  相似文献   

7.
PBL是"基于问题式学习"的教学法,根据我校临床医学院近20年PBL教学研究成果和自己的PBL教学体会,在矫形外科临床教学的不同时期和教学目的开展了组合式PBL教学法,发现组合式PBL教学对培养学生未来的科研与临床的综合素质和能力具有更明确的指向性和优势。  相似文献   

8.
PBL教学模式在急诊护理教学中的应用   总被引:1,自引:0,他引:1  
李桂芬 《中国医疗前沿》2009,4(24):71-71,85
目的探讨以问题为基础的教学(PBL)在急诊护理教学中的应用效果。方法在急诊科的护理教学中采用PBL教学法,并设LBL(课堂传授为基础)教学为对照,对学生进行理论与技能的测试,以评价PBL教学效果。结果PBL教学法比LBL教学法可提高学生对应用型知识的掌握,并可提高学生的操作技能。结论PBL通过培养学生分析问题、解决问题的能力,提高了教学效果。  相似文献   

9.
PBL教学法已广泛应用于高等医药教学领域,但在实践过程中也发现了一些不足,利用BB网络化教学平台能够解决其中一些问题,从而提高教学质量,更好地发挥PBL教学优势.本文从目前国内PBL教学法中存在的问题、利用BB教学平台解决PBL教学问题的实施方案及PBL教学中应用BB教学平台需要注意的问题三个方面进行了分析讨论,发现将BB教学平台应用于医学PBL教学中,对培养学生的学习兴趣、自主学习能力,全面提高PBL教学质量有重要意义.  相似文献   

10.
PBL在实习前期口腔内科学教学中的应用   总被引:1,自引:0,他引:1  
为培养学生灵活综合的运用知识、 理论联系实际和科学的临床思维能力,在口腔内科的教学改革中于实习前期进行了PBL临床病例分析教学的探讨.分析了PBL教学与传统教学相结合的重要性及开展PBL教学的时机、实习前期PBL教学的优点及要注意的问题.  相似文献   

11.
Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P< 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P< 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.  相似文献   

12.
Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P <0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.  相似文献   

13.
Objective: To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods: SD rats served as both donors and recipients. 4℃ sodium lactate Ringer's was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava (IVC) inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results: Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion: This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.  相似文献   

14.
Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.  相似文献   

15.
Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.  相似文献   

16.
A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care(~'4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.  相似文献   

17.
Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.  相似文献   

18.
Journal of Nanjing Medical University (English Edition) JNMU, sponsored by Nanjing Medical University, was established in 1987. It is a bimonthly comprehensive English medical journal published locally and abroad.Since 2007, Journal of Nanjing Medical University (English Edition )was granted Elsevier the full publishing and distribution rights worldwide for the Electronic Edition, excluding the People's Republic of China.  相似文献   

19.
Objective To measure Derpl and Blot5 allergen levels in asthmatics' homes in Hongkong.Methods Seventy houses were enrolled for a mite indoor environment study. Dust samples were obtained from two sites of each patients' house: bed and floor. Derpl and Blot5 levels were quantified by a two-site monoclonal antibody-based ELISA technique.Results The levels of Derpl allergens found in bed (geometric mean (GM) 3.43 μg/g of dust; 95%CI, 1.89-4.96 μg/g)and on the floor (GM 1.12 μg/g of dust; 95%CI, 0.71-1.53 μg/g) indicated significant differences (P=0.005). However, the levels of Blot5 allergens found in bed (GM 19.00 μg/g of dust; 95%CI, 0.89-38.90 μg/g) and on the floor (GM 6.14 μg/g of dust; 95%CI, 0.40-11.90 μg/g) showed no statistically significant difference. In addition, in regards to the exposure index for Derpl and Blot5 allergens found in bed and on the floor, 17.6% in bed and 8.6% on the floor had levels of Blot5 ≥ 10 μg/g of dust, higher than those obtained for Derp1 (7.2% and 0% in bed and on the floor respectively, P< 0.05); higher percentages in bed and on the floor (25.0% and 35.7%) were observed for levels of Blot5 =0 μg/g of dust as compared with Derpl in bed and on the floor (4.3% and 14.5% respectively, P< 0.05).Conclusions Derpl and Blot5 are the major allergens found in this regional study, Blot5 is a more potent allergen in Hongkong, probably reflecting the high level of exposure to Blomia tropicalis (Bt). Bt and Dermatophagoides pteronyssinus (Dp) allergens should be included for precise diagnosis and effective immuno-therapeutic treatment of mite allergy in Hongkong.  相似文献   

20.
ANTI-PROLIFERATION EFFECT OF ORIDONIN ON HL-60 CELLS AND ITS MECHANISM   总被引:4,自引:0,他引:4  
Objcetive To investigate the anti-proliferation effect of oridonin on leukemic HL-60 cells and its mechanism. Methods HL-60 cells in vitro in culture medium were given different concentrations of oridonin. The inhibitory rate of cells were measured by microculture tetrazolium (MTT) assay, cell apoptotic rate was detected by flow cytometry (FCM), morphology of cell apoptosis was observed by hoechst 33258 fluorescence staining, and the activity of telomerase was detected using telomere repeat amplification protocol (TRAP) PCR-ELISA before and after apoptosis occurred. Results Oridonin could decrease telomerase activity, inhibit growth of HL-60 cells, and cause apoptosis significantly. The suppression was both in time- and dose-dependent manner. Marked morphological changes of cell apoptosis including condensation of chromatin and nuclear fragmentation were observed clearly by hoechst 33258 fluorescence staining especially after cells were treated 48-60 hours by oridonin. Conclusions Oridonin has apparent anti-proliferation and apoptotic effects on HL-60 cells in vitro, decreasing telomerase activity of HL-60 cells may be one of its most important mechanisms. These results will provide strong laboratory evidence of oridonin for clinical treatment of acute leukemia.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号