语言实验室教学的利与弊

通过期末考试成绩对实验班与参照班学生语言基础知识和应用能力2方面进行比较，分析产生差异的原因，以便更合理地利用现有教学资源，取得最佳教学效果。     

Advances in TCM Treatment of Senile Vascular Dementia

Senile vascular dementia refers to organic loss of intellectual function due to cerebral damages caused by insufficient blood supply. The following is a summaryon achievements in its etiology, pathogenic mechanism, type identification and treatment in TCM, and the compound formulas, special formulas and drugs, and thepatent drugs used successfully for its treatment.     

淋巴因子水平改变与妊高征的关系

近年来的研究结果发现由Th1/Th2细胞分泌的淋巴因子与妊娠高血压综合征联系密切 ,可能参与了其病因及病理生理过程 ,对它的深入研究有利于妊娠高血压综合征诊断、治疗水平的提高     

种植牙手术的导向模板定向法临床研究

本文介绍了用于人工牙根种植手术的一种导向模板定向法。该导向模板由圆柱形金属定向杆、导向钛管、负压成型的塑料牙列套及自凝塑料增强基托组成。临床应用35例.效果满意。     

医械时代

曾几何时,一个小药箱,一个听诊器,就是一个医生的全部家当。但今天这也许意味着医疗事故官司和失去患者信任度的双重危险。在科学日益昌明的现在,医者和患者都越来越仰仗更昂贵、更先进的仪器,而在这现象之后,是各种医疗仪器设备的迅速普及,是诊疗过程的快速、高效和缜密,是更多科技新发明对人体的近距离关照,当然随之衍生出来的,还有过度医疗服务的不当取利,和种种难见阳光的幕后交易。     

Prof. Shan Zhaowei＇s Experience in Treating Atrophic Gastritis

Prof. Shan Zhaowei （ 单兆伟 ）, the author＇s teacher, has been engaged in TCM for more than 30 years, with profound knowledge in the treatment of diseases of the spleen and stomach, which are introduced in the following.     

Role of mast cells and monoamines in the thrombocytopaenia and mortality elicited by tumour necrosis factor in mice.

We explored the thrombocytopaenia elicited by the i.v. injection of mouse recombinant tumour necrosis factor (TNF) in mice. Injection of 10 micrograms of TNF led to a thrombocytopaenia (evident after 0.5 hr) which was caused by decreased platelet survival, as seen by the injection of labelled platelets. TNF-induced thrombocytopaenia was not prevented by heparin, nor by depletion of either fibrinogen or C'. TNF-induced thrombocytopaenia was markedly attenuated in mice treated with reserpine, an agent that depletes monoamines from mast cells and other cells, and in the mast-cell-deficient WWv mice. In vitro, TNF elicited a modest release of monoamine from peritoneal mast cells and from a mast cell line. When mice are injected with 3H-serotonin (3H-5HT) before TNF, TNF injection increased the plasma 3H-5HT content 1 hr later, modifications absent in reserpine pretreated or mast-cell-deficient mice. 3H-5HT content of the small intestine was markedly depleted in TNF-injected mice, suggesting that this organ is the source of the plasma 3H-5HT. Drop in body temperature and mortality induced by TNF were also attenuated in mast-cell-deficient, and in reserpine pretreated mice. These results indicate that TNF can induce a release of monoamines from mast cells, mainly from those of the small intestine, a process that contributes to TNF-induced thrombocytopaenia and mortality.     

经尿道等离子双极汽化电切(TUPKVP)治疗前列腺增生症580例

目的:探讨经尿道等离子前列腺双极汽化电切术(TUPKVP)治疗前列腺增生的效果。方法:回顾性分析580例良性前列腺增生(BPH)患者行TUPKVP的临床资料。结果:中转开放手术2例,切除前列腺组织10~80 g,平均32.5 g。手术时间25~150 min,平均60 min,术中输血10例,无电切综合征(TURS)发生。术后随访2~36个月,患者最大尿流率升高,IPSS症状评分值降低,排尿通畅,疗效好,并发症少。结论:TUPKVP出血少,手术安全,疗效确切,是治疗前列腺增生的有效方法。     

Time-frequency analysis of heart murmurs. Part II: Optimisation of time-frequency representations and performance evaluation

The basic parameters of the spectrogram, the Choi-Williams, and the Bessel distributions are adjusted to provide the best time-frequency representations (TFRs) of the simulated murmur signals of mitral stenosis, mitral regurgitation, aortic stenosis, aortic regurgitation, and of two musical murmurs. The initial adjustment of the parameters of each TFR technique is performed by computing and minimising the relative averaged absolute error between the frequency contours at −3dB and −10dB of each TFR of the simulated murmurs and those of the theoretical distribution of the same signals. The results show that the spectrogram generally provides very good to excellent performance in representing the TFRs of stenotic and regurgitant murmurs. Improvements provided by the Choi-Williams and the Bessel distributions are minor but not systematic for the two signal-to-noise ratios tested (0 and 30 dB) and for the two frequency contours estimated. The Bessel and the Choi-Williams distributions provide the best performance for the musical murmurs. The study shows that although a single technique cannot be optimal for all six murmurs, the spectrogram using a Hamming window of 30 ms is an acceptable compromise to detect the six simutated heart murmurs.     

恶性梗阻性黄疸的外科姑息治疗

不能切除肿瘤的恶性梗阻性黄疸的外科姑息治疗方法繁多，本文介绍自1989年以来，采取开腹经不同途径的带支撑导管胆肠内引流的方法治疗30例，减黄确切，尚对7例高位胆管癌在解除胆道梗阻的基础上行术后(192)Ir和(60)Co联合放疗，提高了病人生存质量及延长了生命。