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慢性皮肤溃疡是一种中医外科疑难病,病因复杂,现代医学尚缺乏疗效确切的治疗手段。中医药对该病有许多独特疗法,文章主要从中药膏外敷、中药熏洗与湿敷、按摩、针灸、情志饮食等各方面护理特色进行归纳、阐述,为本病的临床护理提供参考。 相似文献
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目的：探讨EGCG对女性皮肤抗衰老效果及安全性。方法：收集88名健康志愿者作为本研究的研究对象,所有志愿者每天早晚用韩后有机茶蕊嫩白洁面乳洁面后,各使用一次、韩后有机茶蕊嫩白水、韩后有机茶蕊极嫩精华30ml、韩后有机茶蕊嫩白乳或嫩白霜,连续12周,且在此期间不使用其他护肤品,并分别于使用前、使用后6周、使用后12周测量志愿者的皮肤干燥程度、脱屑程度,皮肤角质层含水量,分析皮肤纹理及是否出现不良反应。结果：使用含有EGCG成分的护肤品前皮肤表面脱落的角质细胞数量为62134.91±7692.34,显著性高于使用6周、12周后的21098.234±6582.14、8134.974±5989.38（P〈0.05）。使用含有EGCG成分的护肤品前皮肤角质层含水量为49.234±19.29,与使用后的49.114±25.12、53.764±12.94无差异性（P〉0.05）。皮肤纹理分析：轮廓线的平均深度与平均粗糙程度在使用前后存在较大的差异性（P〈0.05）。结论：合有EGCG成分的护肤品抗衰老效果明显且没有副作用。 相似文献
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刘凯民 《宁波广播电视大学学报》2008,6(1):125-128
本文论述了用脑机制、用脑动机和用脑保健的神经生物学机制,着重对“用进废退”在构建神经联结上的正、负强化作用和前额叶与杏仁核在学习动机形成中的影响力作了探讨,并提出了“勤思防脑衰、用脑要适度、保证脑营养”等健脑策略． 相似文献
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目的:通过对兔背部真皮下血管网皮瓣断蒂时及断蒂后10d血流量的监测,分析血流量变化与皮瓣成活的关系,探求皮瓣断蒂指征,提出皮瓣成活的客观标准,为临床治疗提供依据。方法:以兔为实验动物,行背部真皮下血管网皮瓣成形术,术后7d断蒂,断蒂前使用激光多普勒血流仪(Laser Doppler flowmetry,LDF)测定皮瓣阻断实验前后皮瓣血流灌注量(Perfuse unit,PU),并对皮瓣断蒂后10d的PU进行连续监测并与周围正常皮区PU值进行比较,10d后处死动物取皮瓣组织行病理检查,按坏死与否将皮瓣分为两组:成活组与坏死组。分析两组皮瓣血流量变化情况并得出结论。结果:成活组断蒂时阻断试验前后PU比值(阻断比值)明显高于坏死组,且成活组PU值在断蒂后1~10d均显著高于坏死组(P<0.01);成活组与坏死组断蒂后10d周边皮区的PU值无统计学差异(P>0.05);成活组断蒂后10d皮瓣与周围正常皮区PU比值(瓣周比值)为70.1±11.2。结论:真皮下血管网皮瓣断蒂后皮瓣血流灌注量随皮瓣断蒂时阻断实验前后PU比值增高而增高;皮瓣的最佳断蒂时机为:①皮瓣成形术后7d以上。②肉眼观察皮瓣存活。③LDF测量阻断比值大于44.6%。皮瓣成活的标准为:断蒂术后10d肉眼观察成活且皮瓣与周围正常皮区灌注量比值大于58.9%。 相似文献
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郭宇 《鞍山师范学院学报》2008,10(6):24-26
皮肤颜色的客观化测量是皮肤医学领域最受关注的问题之一．近年来,随着科技的飞速发展,数字成像法实现了在肤色测量中的应用,该方法主要采用数字成像技术和图像处理技术来测量待测样品的颜色．文中首先简要叙述了皮肤颜色的形成过程,然后着重介绍了数字成像法在肤色测量中的几个应用实例,最后展望了该方法的发展方向和应用前景．事实表明,数字成像法已成为当今肤色测量领域中的一个重要研究方向． 相似文献
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试论探究式教学模式在医学神经生物学教学中的应用 总被引：1，自引：0，他引：1
现代高等医学教育越来越注重学生科研能力和学术思维的培养,．因此应该对传统教学模式有所改变。探究式教学是按照科学探究的要素来组织教学内容和教学活动、着重培养学生科学探究能力的一种教学方式,它以学生为主体．其宗旨是培养创造性人才。在神经生物学中引入探究式教学,不仅对教学过程的互动性有所提升,也能促进教师从知识的传授者向引导者转变,从而在更好地培养学生的综合素质和创新能力的过程中起到积极的作用。 相似文献
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Background: Our previous studies revealed cyclicity in the incidence rate of skin malignant melanoma (SMM; ICD9, Dx: 172) in the Czech Republic (period T=7.50～7.63 years), UK (T=11.00 years) and Bulgaria (T=12.20 years). Incidences com-pared with the sunspot index Rz (lag-period dT= 2, 4, 6, 10 or 12 years) have indicated that maximal rates are most likely to appear on descending slopes of the 11-year solar cycle, i.e., out of phase. We summarized and explored more deeply these cyclic variations and discussed their possible associations with heliogeophysical activity (HGA) components exhibiting similar cyclicity. Methods: Annual incidences of SMM from 5 countries (Czech Republic, UK, Bulgaria, USA and Canada) over various time spans during the years 1964～1992 were analyzed and their correlations with cyclic Rz (sunspot number) and aa (planetary geomagnetic activity) indices were summarized. Periodogram regression analysis with trigonometric approximation and phase-correlation analysis were applied. Results: Previous findings on SMM for the Czech Republic, UK and Bulgaria have been validated, and cyclic patterns have been revealed for USA (T=8.63 years, P<0.05) and Canada (Ontario, T=9.91 years, P<0.10). Also, various 'hypercycles' were established (T=45.5, 42.0, 48.25, 34.5 and 26.5 years, respectively) describing long-term cyclic incidence patterns. The association of SMM for USA and Canada with Rz (dT= 6 and 7 years, respectively) and aa (dT=-10 and 9 years, respectively) was described. Possible interactions of cyclic non-photic influences (UV irradiation, Schumann resonance signal, low-frequency geomagnetic fluctuations) with brain waves absorbance, neuronal calcium dynamics, neuro-endocrine axis modulation, melatonin/serotonin disbalance and skin neuro-immunity impairment as likely causal pathways in melanoma appearance, were also discussed. Conclusion: The above findings on cyclicity and temporal association of SMM with cyclic environmental factors could not only allow for better forecasting models but also lead to a better understanding of melanoma aetiology. 相似文献
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Multi-face detection based on downsampling and modified subtractive clustering for color images 总被引：1，自引：0，他引：1
KONG Wan-zeng ZHU Shan-an 《浙江大学学报(A卷英文版)》2007,8(1):72-78
INTRODUCTION Face detection has been widely used in fields such as security, multimedia retrieval, human com-puter interaction, etc. Therefore it becomes one of the most active research areas in computer science. Re-cently, approaches to face detection include neural network (Rowley et al., 1998), boosting (Viola, 2001; Viola and Jones, 2004), template matching (Kim et al.,2000) and skin color (Cai and Goshtasby, 1999; Wang and Yuan, 2001; Soriano et al., 2003), etc. The methods of n… 相似文献