山谷型垃圾填埋场渗滤液场内收集管网系统的设计计算方法研究

以苏州七子山垃圾填埋场为背景，采用理论分析的方法，探讨山谷型垃圾填埋场合理的渗滤液收集系统的形式和定量计算方法。     

Neural classifier construction using regularization, pruning and test error estimation

In this paper we propose a method for construction of feed-forward neural classifiers based on regularization and adaptive architectures. Using a penalized maximum likelihood scheme, we derive a modified form of the entropic error measure and an algebraic estimate of the test error. In conjunction with optimal brain damage pruning, a test error estimate is used to select the network architecture. The scheme is evaluated on four classification problems.     

Global bifurcation structure of chaotic neural networks and its application to traveling salesman problems

This paper studies global bifurcation structure of the chaotic neural networks applied to solve the traveling salesman problem (TSP). The bifurcation analysis clarifies the dynamical basis of the chaotic neuro-dynamics which itinerates a variety of network states associated with possible solutions of TSP and efficiently ‘searches’ for the optimum or near-optimum solutions. By following the detailed merging process of chaotic attractors via crises, we find that the crisis-induced intermittent switches among the ruins of the previous localized chaotic attractors underly the ‘chaotic search’ for TSP solutions. On the basis of the present study, efficiency of the ‘chaotic search’ to optimization problems is discussed and a guideline is provided for tuning the bifurcation parameter value which gives rise to efficient ‘chaotic search’.     

The anterior inferior cerebellar arterial network supplying the rat cochlea and its role in autoregulation of cochlear blood flow

Summary The sensitivity of the cochlea is dependent upon maintenance of a delicate homeostatic environment. One mechanism which participates in providing this environment is the autoregulation of cochlear blood flow. This autoregulation is ensured through the interaction of sympathetic, peptidergic and hemodynamic mechanisms. The current study demonstrates an adaptation that also participates in cochlear blood flow autoregulation. Specifically, an anterior inferior cerebellar arterial network is described and the relative contributions of each of its vessels to total cochlear blood flow is measured using laser Doppler flowmetry. The results show that each collateral vessel contributes to the blood supply of the cochlea and that reperfusion is accompanied by hyperemia. These findings suggest an adaptation that provides stable blood flow through redundancy and compensatory potential. Additionally, these observations have implications for experimental models of ischemia.     

术前术野剃毛与术后切口感染关系的Meta分析

目的探讨术前术野剃毛能否降低术后切口感染率.方法在中文期刊全文库、中国生物医学文献光盘数据库、PUBMED 3个电子文献数据库中,检索出10篇有关术前术野剃毛与术后切口感染关系的文献进行Meta分析.结果术前术野剃毛组与非剃毛组的术后切口感染率差异没有统计学意义（P〉0.05）.结论术前术野剃毛不能减低术后切口感染率.推荐只剪去影响手术操作的毛发,不必进行常规的术野剃毛.     

真皮下血管网皮瓣修复感染创面的研究

目的：探讨真皮下血管网皮瓣的抗菌能力和临床修复感染创面的应用。方法：以家猪为实验动物，在臀部两侧分别形成传统的岛状皮瓣和真皮下血管网岛状皮瓣，用细菌计数、吖啶橙荧光染色测定白细胞吞噬指数和白细胞内杀菌率等方法，进行对比。结果：真皮下血管网岛状皮瓣的抗菌力明显降低。 １９８９年起临床应用 ５例，创面彻底清创后用吻合血管的真皮下血管网游离皮瓣修复，全部成活。结论：该皮瓣抗菌力虽低于传统皮瓣，但仍可用于修复感染创面。     

用神经网络法预测药物在体透过人皮肤的渗透性

目的：预测药物在体透过人皮肤的渗透性。方法：以正辛醇／水分配系数(logP)、分子体积(V)、氢键酸度(∑β2^H)和氢键碱度(∑β2^H)等理化参数作为输入层神经元，以药物在一定时间内在体透过人皮肤的透过比的对数值(R，透过量／未透过量)作为输出层神经元，建立起合适的BP(Back—propagation)神经网络。结果：17个药物在一定时间内在体透过人皮肤的透过比的神经网络计算值和实测值均相当符合。结论：用BP神经网络法可以较好地预测药物在体透过人皮肤的渗透性。     

应用计算机网络系统提高门急诊管理水平

作者介绍的门急诊计算机管理网络系统，应用软件使用ＦＯＸＰＲＯ２．５ＦＯＲＤＯＳ语言，在两台网络服务器之间应用镜像技术，门诊号的录入使用光笔和条形码技术，实行划价、收费一体化，采用星型拓扑网络结构，保证了网络的先进性、安全性、稳定性和可扩充性。网络系统实现挂号、划价收费、调剂、药品使用管理、工作量统计及经济核算的全程闭环管理格局，有效地堵塞了管理和经济上的漏洞，提高了工作效率和管理水平。该系统已正常运行了１２个月，并通过省级科技成果鉴定。     

Sensitivity of effect variables in rheumatoid arthritis: A meta-analysis of 130 placebo controlled NSAID trials controlled NSAID trials

In a meta-analysis of placebo controlled NSAID trials, the sensitivity of the effect variables was calculated as the correlation coefficient and as the difference between drug and placebo, divided by the placebo group standard deviation. The patient's global evaluation was the most sensitive variable overall. Pain was more sensitive than Ritchie's index. Several variables may be omitted from clinical trials, especially if two active drugs are being compared. For example, the best maximum estimate for the difference in ESR between NSAADs and placebo was 1.0 mm/hr (95% confidence interval −1.5 to 3.4 mm/hr), and for joint size 0.44% (−1.0 to 1.9%), corresponding to a quarter of a millimeter for each of the 10 joints usually measured. It is suggested to record only the patient's global evaluation, pain, and morning stiffness.