Inhibiting effect of melittin on pathogens of crops

The spectrum of antimicrobial effects of melittin were investigated on 19 pathogens by using a cylin-der-plate method with serial dilutions. Bacteriostatic efficiency and possible mechanistic effects were monitored via growth curves. The mechanism of inhibition was further analyzed by SDS-PAGE, flow cytometry and electron microscopy. Melittin had a wide inhibition spectrum and killed pathogens ef-fectively, and bacteriostatic action was influenced by factors such as pH and temperature. We eluci-dated three inhibitory mechanisms: melittin integrated with the cell membrane causing cell bursting and cytoplasm release, inhibited the synthesis of proteins and caused the cytoplasm to condense, and delayed pathogens in phase I (or phase G1) so that they could not complete the cell cycle. These re-sults suggest that melittin could serve as a broad-spectrum biological pesticide with fast-action and high-efficiency.     

船舶压载水沉积物的无害化处理与资源化利用

阐述了一些国内外对船舶压载水沉积物的处理方法及其资源化利用现状.考虑到压载水沉积物的特殊理化性质,提出了两种可用于压载水沉积物无害化处理的可行性方案,并针对处理后沉积物的性质提出了资源化利用方案.     

论邓小平外交思想的创新

邓小平的外交思想是邓小平理论的重要组成部分，他继承了毛泽东外交思想的精髓，是与之一脉相承的科学理论体系。同时，他又在时代主题和国际局势、维护国家利益、“韬光养晦，有所作为”、解决国际争端的方式四个方面进行了创新发展，形成了具有鲜明时代特色的邓小平外交理论，从而有力的促进了中国对外关系的新发展。     

基于BP网络的水火弯板局部收缩量建模研究

以实船板水火加工成型的测试数据为样本，应用的ＢＰ网络，分别建立了帆型曲板的最大收缩长度、收缩面积的７参数和５参数的４个神经网络模型，介绍了网络的结构设计及其训练过程，进行了网络的误差分析；算例结果证明该模型具有实用意义。     

论城市人-地系统相互作用及其环境制约

建立了城市人－地系统相互作用的全球概念模型，分析阐述了城市发展环境相互作用的依存关系以及环境对城市发展的制约影响。     

区域矿产资源可持续发展流图分析

建立了区域矿产资源的因果关系模型，流量反馈模型及不同开发模式下的状态方程与轨迹，结果表明，状态轨迹不是自然减的指数曲线，也非常见的Ｓ型曲线，而是具有幂函数曲线的特征，但资源的替代方程及发展轨迹与自然界生物竞争具有相似性，是一条组合的准Ｌｏｇｉｓｔｉｃ曲线。     

Micro/-nanoscaled topography-coupled-mechanical action into functional biointerface

The micro/-nanoscaled functional biointerfaces aroused much interest of their key unit element to present unique functions. So far it is still difficult to describe the whole picture of this process. More and more evidences are beginning to support the theory of ‘‘mirco/-nanotopography-coupled-mechanical(TCM) action' into functional biointerfaces.Herein, we aim to highlight TCM action on varied micro/-nanoscaled functional biointerfaces, namely to achieve better understanding of micro/-nanoscaled structures by introducing interfacial mechanical behaviors. In this article, recent progressions on ‘‘TCM on air/liquid/solid-phase biointerfaces in nature', ‘‘in vivo TCM behaviors at micro/-nanoscales' ',‘‘TCM in micro/-nanoscaled artificial surface with living Cells' ' and ‘‘topography, interfacial curvature, mechanics' 'are reviewed. Certain new concepts of ‘‘TCM action based on spatial curvature', ‘‘medically functional biointerfaces' ' and‘‘biomechanopharmacology' are also proposed.     

Numerical modeling and simulation of temperature distribution uncertainty subject to ferromagnetic thermoseeds hyperthermia

In the process of ferromagnetic thermoseeds mediated magnetic induction hyperthermia, the tempera- ture distribution in the tumor region is a key factor to determine the therapy effect. During the preoperative treatment planning, discrepancies of the treatment parameters may lead to the temperature distribution uncertainty within the target area. Inaccurate prediction of temperature distribution may induce the treatment failure; therefore, it would be significant to investigate the uncertainty of tissue temperature prediction caused by the disturbance of calculation parameters. In this paper, 3D temperature field and necrosis zone of tissues in ferromagnetic thermoseeds hyperthermia are simulated by the finite volume algorithm, and effects of parameter uncertainties on the temperature distribution are revealed. Results show that selecting appropriate magnetic field parameters for treatment is a priority to guarantee therapeutic effect. Thermoseed properties and blood perfusion rate are the obvious disturbing terms for temperature distribution, while the metabolic heat of bio-tissues can often be ignored within limits. Our investigation is of importance for guiding reasonable and optimal preoperative treatment planning.     

试论英语话剧与跨文化交际能力的培养

文章试论以英语话剧为载体,通过研读剧本、表演话剧、与观众的交流等一系列的实践环节,培养学生的跨文化交际能力。     

Resolution for Conflicts of Inter-Operation in Multi-Domain Environment

This paper proposes a method to formalize the interoperation in multi-domain environment. Through employing the algebra method, we conclude four types of the conflicts for the interoperation, and analyzes the cause of the policy conflicts. For each type of conflicts, we formalize it and proposes the method of detection and resolution. Finally, the method is illuminated be effective through comparing our work with others.