基于ORACLE的强地震记录数据库

强震记录的收集、管理是地震工程和工程抗震的基础工作之一，据此，采用国际上先进的关系型数据库ORACLE设计建立强震记录数据库，该库能将来自国内外不同媒介上不同格式的数据自动转换，具有多个字段任意截断的检索功能，并用第4代语言（4GL）FORMS设计成友好的用户界面，该库还能和图形库GKS连接，使用户在检索到某一记录后能直接在屏幕上得到该记录的曲线．     

First congenital prosopagnosia case reported in China

Congenital prosopagnosia (CP) refers to the deficiency in recognizing faces without reportable brain damage. In this study we reported a CP patient (X.L.), the first CP case reported in China, and tested her with a battery of face recognition and visual cognition tasks to explore what aspects of face processing are impaired in CP individuals. Our results show that X.L. possesses a normal ability to detect the presence of faces yet her ability to discriminate between individual faces is significantly impaired compared to normal controls. In contrast, her ability to detect nonface objects is greatly preserved, suggesting that she suffers from a selective deficiency in face recognition. Further face tests reveal that she has intact feature-based analysis ability while configural and holistic processing are both impaired. We further evaluate her general capacity of holistic processing, and the results showed that her impairment in holistic processing is not restricted to faces, but to a more general level.     

First congenital prosopagnosia case reported in China

Congenital prosopagnosia (CP) refers to the deficiency in recognizing faces without reportable brain damage. In this study we reported a CP patient (X.L.), the first CP case reported in China, and tested her with a battery of face recognition and visual cognition tasks to explore what aspects of face processing are impaired in CP individuals. Our results show that X.L. possesses a normal ability to detect the presence of faces yet her ability to discriminate between individual faces is significantly impaired compared to normal controls. In contrast, her ability to detect nonface objects is greatly preserved, suggesting that she suffers from a selective deficiency in face recognition. Further face tests reveal that she has intact feature-based analysis ability while configural and holistic processing are both impaired. We further evaluate her general capacity of holistic processing, and the results showed that her impairment in holistic processing is not restricted to faces, but to a more general level.     

微波宽带放大器的计算机辅助设计

本文论述了微波宽带放大器计算机辅助分析和设计的基本原理和方法。介绍了电路分析子程序和A—S转换子程序以及优化子程序。讨论了目标函数的建立和最优化技术,最后给出设计实例。     

Application of Xenopus laevis in ecotoxicology (I)—Introduction and quality control of laboratory animal

The aim of the series of papers is to discuss the application of Xenopus laevis, as model animal in biology, in ecotoxicology. X. laevis as model animal is wildly used in biological study and has provided a lot of relating data because of many advantages, such as living in water and being easily maintained, laying eggs in the whole year, and externally fertilizing and developing. Embryos and larvae of X. laevis like other amphibians are directly exposed in the aquatic environment and sensitive to pollutants. In addition, sex differentiation and sex organ development of X. laevis are sensitive to sex hormones and endocrine disruptors with sex hormone activities, which enable X. laevis to be used in studies on sex hormone disruption and reproductive toxicity of endocrine disruptors. Metamorphic development of X. laevis is very sensitive to thyroid hormones and thyroid disruptors, which enables X. laevis to be used for evaluating thyroid disruptors. Also, X. laevis ecotoxicology can be linked with amphibian population declines and malformed frog occurrence, being one of the hotspots in ecology. Thus, more and more laboratories have introduced X. laevis to ecotoxicological study. The quality of laboratory animals correlates with scientificity and reliability of results from animal experiments. It is especially important for toxicology. Quality control of X. laevis involving several factors such as water and food is discussed in this paper.     

仿生新材料的应用及展望

 仿生材料的最大特点是可设计性,运用仿生的手段可以将自然界生物材料的结构及功能赋予人工制造的智能化材料。综述了目前仿生新材料在信息通信、建筑行业、生物医疗、节能减排等领域的应用,分析了仿生材料在未来的应用方向,并对仿生材料的前景提出了展望。     

大连市旅顺口区与经济技术开发区水足迹初步研究

水足迹将实物形态的水与虚拟形态的水联系起来,为分析经济模式对区域水资源的影响、解决区域水资源缺乏问题提供了一种新思路.计算了大连市旅顺口区和大连市经济技术开发区的水足迹.结果表明,2003年旅顺口区的总水足迹不足开发区的50%,但实体水的消耗量约为开发区的1.5倍.旅顺口区水资源压力大的主要原因是该区施行农业为主要产业、在贸易过程中大量输出虚拟水的发展模式.考虑到两个地区的水资源特点及经济模式对用水的影响,提出了增加工业在产业中的比率和发展精品农业等的发展策略.     

生物课堂教学中创设问题情境的方法举例

提问能力是学生终生需要的能力,也是生物课堂当中亟待培养的能力,但我国中学生提出问题的能力明显不足.这其中一部分原因是由于教师缺乏让学生自主提出问题的引导,对创设问题情境的意识不足及创设问题情境的方法不够.故在此提出生物课堂中常见的创设问题情境的方法.     

世界植物园的现状与展望

世界植物园的发展史，是一部人类加深认识、进行保护和扩大利用植物的历史。随着植物园数量的增长，植物园可分为综合性、园林和观赏园艺、经济植物及种质保存等类型。当前植物瞻的任务主要为植物多样性的保护、植物资源利用、展示教育与咨询和科学研究。由于植物资源的竞争更加激烈但规范化、管理更加现代化与科学化、植物园更加开放与联合，展望植物园今后的发展，可能将在植物园学和科学植物园、专类园建设及群落建园、植物园信息管理系统、虚拟植物园与科普、植物园网络化、推动植物资源可持续利用等方面不断加强与完善。