取代苯胺和苯酚类化合物对大型■(Daphnia magna Straus)的定量结构-活性关系研究

研究了３６个取代苯胺和苯酚类化合物对大型的急性毒性，应用正辛醇／水分配系数、线性溶解能关系参数和分子连接性指数得出了该类化合物的定量构效关系方程，这些方程可以用来进行该类化合物危害性初评．ＬＳＥＲ法得到的ＱＳＡＲ方程拟合效果较好，增大分子体积及偶极性极化性，均可增大毒性．化合物与蛋白质等生物大分子的氢键键合作用是导致该类化合物毒性高于其基本毒性的原因．     

英语阅读方法和能力的研究与指导

本文试从英语阅读的心理与习惯，对阅读中所遇到的新、生词汇的处理及阅读方法与技巧几个方面来论述，加强学生英语阅读能力及提高学生的综合素质。     

职业安全健康管理体系在冶金建筑施工企业中的应用

通过对冶金建筑施工企业伤亡事故现状的分析，提出建立职业安全健康管理体系的意义和重要性，最后指出冶金建筑施工企业在建立职业安全健康管理体系时存在的问题及建议。     

我国中水回用现状及对策

我国水资源短缺问题日益严重，从长远发展来看，中水回用作为一项保护环境、节约资源的措施，将有力地促进城市的可持续发展和加速生态城市的建设。中水回用是解决我国水资源危机的有效途径之一。     

日喀则台观测环境存在的问题和解决办法

西藏日喀则地震台处于特殊的地理位置和地理环境，观测环境受到来自自然和人为因素的诸多干扰，本文剖析了各个干扰因素对观测环境影响，提出了一些具体而可行的解决办法。     

高等院校教师有效激励机制的探讨

高等院校管理者必须思考如何更加有效的激励教师工作的积极性。高等院校教师的有效激励机制包括教师工作激励机制、教师成就激励机制和优秀教师的价值激励机制。三者有机结合，才能更好的促进教师的工作积极性、主动性、创造性，实现高等院校教师的自我价值。     

纳米材料对环境和健康的潜在危害

随着越来越多的纳米商品材料在生产和生活中的应用，纳米材料的环境安全问题逐渐引起关注，纳米科技和纳米材料的潜在风险及其负面影响已成为专家共识。文章综述了纳米材料对环境和生命健康带来的可能危害及其毒性特性，并认为深入研究纳米材料的环境安全问题将有助于建立正确生产，使用和处理纳米材料的科学规范。     

大直径TA2卷焊坯制备工艺

此文介绍尺寸为φ1547×L900×δ30的大直径TA2卷焊坯的制备工艺。主要包括卷焊坯设计、展开下料的计算、卷圆工艺、焊接工艺等,可供同类材质圆筒件卷圆时参考。     

BOD测定中微生物传感器法与稀释接种法的比较

用微生物传感器快速法和稀释接种法对地表水和污水处理厂出水中的生化需氧量(BOD)进行了测定,用数理统计的方法对两种方法测定的结果进行了比较。     

Mitigation and adaptation synergy in forest sector

Mitigation and adaptation are the two main strategies to address climate change. Mitigation and adaptation have been considered separately in the global negotiations as well as literature. There is a realization on the need to explore and promote synergy between mitigation and adaptation while addressing climate change. In this paper, an attempt is made to explore the synergy between mitigation and adaptation by considering forest sector, which on the one hand is projected to be adversely impacted under the projected climate change scenarios and on the other provide opportunities to mitigate climate change. Thus, the potential and need for incorporating adaptation strategies and practices in mitigation projects is presented with a few examples. Firstly, there is a need to ensure that mitigation programs or projects do not increase the vulnerability of forest ecosystems and plantations. Secondly, several adaptation practices could be incorporated into mitigation projects to reduce vulnerability. Further, many of the mitigation projects indeed reduce vulnerability and promote adaptation, for example; forest and biodiversity conservation, protected area management and sustainable forestry. Also, many adaptation options such as urban forestry, soil and water conservation and drought resistant varieties also contribute to mitigation of climate change. Thus, there is need for research and field demonstration of synergy between mitigation and adaptation, so that the cost of addressing climate change impacts can be reduced and co-benefits increased.