老年人肱骨近端二部分和三部分移位骨折19例临床分析

目的 探讨老年人肱骨近端二部分和三部分移位骨折的手术治疗方法。方法 回顾性分析19例老年肱骨近端二部分和三部分移位骨折患者的临床资料，其中二部分骨折13例、三部分骨折6例，采用切开复位，肱骨近端解剖钢板固定治疗。结果 二部分骨折术后优良率为76．9％，未出现骨折不愈合及肱骨头坏死；三部分骨折术后优良率为66．7％，肱骨头坏死率16．7％。结论 老年人肱骨近端二部分和三部分骨折应尽量采用有限切开复位，选择肱骨近端解剖钢板固定。     

增溶分光光度法测定人发中铝

目的：建立一种测定人发中铝的新方法。方法：以铬天青S－溴化十六烷基三甲铵为表面活性剂增溶分光光度法测定人发中铝。结果：方法检出限为0.006μg/ml，相对标准偏差小于1．3％，加标回收率在91％－104％之间。结论：方法简便，不需要特殊仪器，易于推广使用。     

农民工结核病健康教育效果评价

目的 探讨开展结核病健康教育对提高农民工相关知识知晓率和态度正确率的作用.方法 对重庆市南岸区农民工进行结核病相关知识的健康教育,教育方式是由专科医生进行专题讲座.健康教育讲座前后在同一现场统一发放问卷,并当场收回,对教育前后农民工的结核病相关知识作一一配对比较.结果 调查15项内容,其中有14项内容教育前后有显著性差异.教育前农民工结核病知识知晓率为67.5%,教育后知晓率为99.5%;正向态度报告率从教育前的44.1%提高到60.1%.结论 健康教育能提高农民工防治结核病知识知晓率和态度正确率,此方法值得推广.     

Polymer strength and chain conformation

It is found that the expected maximum strength of polymers is not proportional to the number of polymer chains per unit area. Under uniaxial stressing only part of polymer chains, i.e., overstressed chains, contribute to the strength of the polymer. The number of overstressed chains obtained here for some polymers is consistent with the results of electron paramagnetic resonance and stress-Fourier-transform IR measurements: (a) Polymers with all-trans conformation of their chains have more overstressed chains than those with helix conformation; (b) in the case of polymers with helix conformation, those with smaller side groups have more overstressed chains. Under uniaxial stress, the polymer chains change their conformation from gauche to trans which results in a relief of stress. Polymer with helix conformation thus have less overstressed chains and, hence, lower strength than polymers with all-trans conformation.     

Cultural perspectives and current consumption changes of cooked rice in Korean diet

Cooked rice is a staple food for Koreans which provides more than 60% of daily required energy. In 1960''s, Koreans ate 600 g-800 g of cooked rice per meal and the energy obtained from cooked rice was almost more than 80% of the daily intake of energy. However, as the economy of Korea improved, the major industry has been shifted from agriculture to various manufacturing industries and the export of those products has been increased thus increasing the national income but decreasing the farming population and thus rice consumption have been decreased. It has been said that the decreased rice consumption is caused solely by decreased farming population but it can also be said that the decreased farming population is caused by decreased rice consumption.As the national income increases, the type of foods people consume have become diversified. Various processed foods such as convenience food or ready-to-eat food have been widespread, which are mostly made of wheat flour rather than rice.     

特素联合卡铂治疗晚期非小细胞肺癌28例临床研究

目的 评价特素（紫杉醇注射液）联合卡铂（伯尔定）方案治疗晚期非小细胞肺癌（NSCLC）的疗效和不良反应.方法 收集我院2004年3月～2006年12月收治的Ⅲb～Ⅳ期的NSCLC患者28例,进行特素（紫杉醇注射液）联合卡铂（伯尔定）化疗.全部患者均有可测量的指标.给药方法：特素135～175mg/m2d1＋卡铂5mg·ml^-1·min^-1d2,静脉注射,28天为一周期.结果 全组总有效率50.0%,Ⅲb期有效率62.5%,Ⅳ期有效率45.0%.化疗副反应主要是骨髓抑制及消化道反应,其中Ⅲ～Ⅳ度分别为24.0%、10.7%.结论 特素联合卡铂治疗晚期非小细胞肺癌治疗有效,耐受性良好.     

EEG source imaging: correlating source locations and extents with electrocorticography and surgical resections in epilepsy patients.

SUMMARY: It is desirable to estimate epileptogenic zones with both location and extent information from noninvasive EEG. In the present study, the authors use a subspace source localization method (FINE), combined with a local thresholding technique, to achieve such tasks. The performance of this method was evaluated in interictal spikes from three pediatric patients with medically intractable partial epilepsy. The thresholded subspace correlation, which is obtained from FINE scanning, is a favorable marker, which implies the extents of current sources associated with epileptic activities. The findings were validated by comparing the results with invasive electrocorticographic (ECoG) recordings of interictal spike activity. The surgical resections in these three patients correlated well with the epileptogenic zones identified from both EEG sources and ECoG potential distributions. The value of the proposed noninvasive technique for estimating epileptiform activity was supported by satisfactory surgery outcomes.     

Association of the expressions of platelet-derived growth factor receptor and c-Fos with the biological characteristics of bladder cancer.

OBJECTIVE: To elucidate the relation of platelet-derived growth factor receptor (PDGFR) and c-Fos protein expressions with human bladder transitional epithelial cell carcinoma (BTCC). METHODS: The expressions of PDGFR and c-Fos were investigated in 11 normal bladder tissue samples, 14 adjacent non-carcinoma tissues and 43 BTCC tissues by means of SP immunohistochemical technique. RESULTS: The c-Fos expression was found in the cell nuclei and cytoplasm, and PDGFR in the nuclear membrane, cytoplasm, and cellular membrane. PDGFR and c-Fos were detected in 81.40% and 48.83% of the BTCC tissues respectively, at the rates both significantly higher than those in normal and adjacent non-carcinoma tissues (P<0.05). Correlation between the expression of c-Fos and the tumor grading was noted (P<0.05). The expressions of PDGFR and c-Fos in tumor blood vessels were significantly higher than those in normal vessels. CONCLUSIONS: The expressions of PDGFR and c-Fos might be involved in the development of BTCC, possibly related to the angiogenesis of the tumors. c-Fos expression can indicated the cell proliferative status of the BTCC.     

多分类有序反应变量logistic回归应用条件的检验

目的 对多分类有序反应变量logistic回归的应用条件寻求科学合理的检验方法。方法 使用卡方分布的理论，SAS软件及抽样调查方法。结果 设计出多分类有序反应变量logistic回归应用条件的卡方检验方法，推导出反应变量取各水平的概率计算公式及卡方检验中理论值、自由度的计算公式，并在作者主持的国家医师资格临床实践技能考试研究中取得了成功效果。结论 多分类有序反应变量logistic回归得到完善和补充，具有较大的理论和实际意义。