MapInfo与Visual Basic动态数据变换（DDE）的实现

简述了桌面地图信息系统ＭａｐＩｎｆｏ及其开发环境－ＭａｐＢａｓｉｃ的主要功能和特点;介绍了通过由源处目标发送数据,实现ＭａｐＩｎｆｏ与Ｖｉｓｕａｌ Ｂａｓｉｃ之间动态数据交换（ＤＤＥ）的方式。     

Unitary Symmetry of the Triatomic Molecular Spectra

ＵｎｉｔａｒｙＳｙｍｍｅｔｒｙｏｆｔｈｅＴｒｉａｔｏｍｉｃＭｏｌｅｃｕｌａｒＳｐｅｃｔｒａＭａｎｕｓｃｒｉｐｔｒｅｃｅｉｖｅｄＭａｒ．７，１９９７ＹａｎｇＢｏｊｕｎａｎｄＹｕＬｉ（ＤｅｐａｒｔｍｅｎｔｏｆＢａｓｉｃＳｃｉｅｎｃｅｓ，ＢｅｉｊｉｎｇＵｎ...     

The Least Square Constant Modulus Algorithm for Blind Adaptive Multiuser Detection

1　ＩｎｔｒｏｄｕｃｔｉｏｎＭｕｌｔｉｕｓｅｒＤｅｔｅｃｔｉｏｎ (ＭＵＤ)ｉｓｍａｉｎｌｙａｐｐｌｉｅｄｉｎＣＤＭＡｔｏｃａｎｃｅｌｔｈｅｍｕｌｔｉａｃｃｅｓｓｉｎｔｅｒｆｅｒｅｎｃｅ.Ｔｈｅｓｉｎｇｌｅ ｕｓｅｒｍａｔｃｈｅｄｆｉｌｔｅｒｏｒｒａｋｅｒｅｃｅｉｖｅｒｔｒｅａｔｓｔｈｅｉｎｔｅｒｆｅｒｅｎｃｅｆｒｏｍｏｔｈｅｒｕｓｅｒｓａｓｎｏｉｓｅ ,ｂｕｔＭＵＤｔａｋｅｓａｄｖａｎｔａｇｅｏｆｔｈｅｏｔｈｅｒｕｓｅｒ’ｓｉｎｔｅｒｆｅｒｅｎｃｅ[1 ].ＢｌｉｎｄａｄａｐｔｉｖｅＭＵＤｈａｓｂｅｅｎｔ…     

优化Visual Basic查询的方法

Ｖｉｓｕａｌ Ｂａｓｉｃ 允许用户使用结构化语言（ＳＱＬ） 从Ｊｅｔ ｄａｔａｂａｓｅｓ（ＭＤＢ 文件） 中取出数据,本文提出了一些优化查询操作的方法     

Visual新秀──Delphi

Ｖｉｓｕａｌ新秀──Ｄｅｌｐｈｉ司晓萍，曹雁Ｄｅｌｐｈｉ一开始被人称为ＶＢＫ（ＶｉｓｕａｌＢａｓｉｃＫｉｌｌｅｒ）。因为Ｂｏｒｌａｎｄ公司开始是想开发一套针对微软ＶｉｓｕａｌＢａｓｉｃ为假想敌的工具，由于Ｄｅｌｐｈｉ是采用面向对象的开发语言Ｏｂｊｅｃ...     

Fuzzy Set Operation Based on Measure Theory

ＦｕｚｚｙＳｅｔＯｐｅｒａｔｉｏｎＢａｓｅｄｏｎＭｅａｓｕｒｅＴｈｅｏｒｙＭａｎｕｓｃｒｉｐｔｒｅｃｅｉｖｅｄＭａｙ１２，１９９６ＬｕＪｉａｎｐｉｎｇ（ＤｅｐａｒｔｍｅｎｔｏｆＣｏｍｐｕｔｅｒ，Ｘｉ＇ａｎＩｎｓｔｉｔｕｔｅｏｆＰｏｓｔｓａｎｄＴｅｌｅ...     

On the Design of Nonlinear Neural Networks for Associative Memories

ＯｎｔｈｅＤｅｓｉｇｎｏｆＮｏｎｌｉｎｅａｒＮｅｕｒａｌＮｅｔｗｏｒｋｓｆｏｒＡｓｏｃｉａｔｉｖｅＭｅｍｏｒｉｅｓＸｕＳｈｕｎｄｏｕ（ＤｅｐａｒｔｍｅｎｔｏｆＢａｓｉｃＣｏｕｒｓｅｓ，ＳｈｉｊｉａｚｈｕａｎｇＰｏｓｔａｌＣｏｌｅｇｅ，Ｓｈｉｊｉａｚｈ...     

Depletion Mode HEMT with Refractory Metal Silicide WSi Gate

ＤｅｐｌｅｔｉｏｎＭｏｄｅＨＥＭＴｗｉｔｈＲｅｆｒａｃｔｏｒｙＭｅｔａｌＳｉｌｉｃｉｄｅＷＳｉＧａｔｅ￥ＣＨＥＮＤｉｎｇｑｉｎ；ＺＨＯＵＦａｎ（ＩｎｓｔｉｔｕｔｅｏｆＳｅｍｉｃｏｎｄｕｃｔｏｒｓ，ＡｃａｄｅｍｉａＳｉｎｉｃａ，Ｂｅｉｊｉｎｇ１０００８...     

基于蜂窝式信息包无线数据（CDPD）网的交通管理系统

介绍一种在ＣＤＰＤ网络上应用的客户／服务器模式交通管理系统,该系统以Ｗｉｎｄｏｗｓ ＮＴ Ｓｅｒｖｅｒ／Ｗｉｎｄｏｗｓ９５为平台。服务器端使用Ｍｉｃｒｏｓｏｆｔ ＳＱＬ Ｓｅｒｖｅｒ数据库进行统一数据管理;利用开放数据库连接（ＯＤＢＣ）及Ｖｉｓｕａｌ Ｂａｓｉｃ５．０开发客户端应用程序。     

Ku波段8W GaAs内匹配微波功率FET

Ｋｕ波段８ＷＧａＡｓ内匹配微波功率ＦＥＴ李祖华（南京电子器件研究所，２１００１６）Ｋｕ－Ｂａｎｄ８ＷＧａＡｓＩｎｔｅｒｎａｌｌｙＭａｔｃｈｅｄＭｉｃｒｏｗａｖｅＰｏｗｅｒＧａＡｓＦＥＴ￥ＬｉＺｕｈｕａ（ＮａｎｊｉｎｇＥｌｅｃｔｒｏｎｉｃＤｅｖｉｃｅｓ...     

Designing an Embedded Video Processing Camera Using a 16-bit Microprocessor for a Surveillance System

This paper describes the design and implementation of a hybrid intelligent surveillance system that consists of an embedded system and a personal computer (PC)-based system. The embedded system performs some of the image processing tasks and sends the processed data to the PC. The PC tracks persons and recognizes two-person interactions by using a grayscale side view image sequence captured by a stationary camera. Based on our previous research, we explored the optimum division of tasks between the embedded system and the PC, simulated the embedded system using dataflow models in Ptolemy, and prototyped the embedded system in real-time hardware and software using a 16-bit CISC microprocessor. This embedded system processes one 320 × 240 frame in 89 ms, which yields one-third of the rate of 30 Hz video system. In addition, the real-time embedded system prototype uses 5.7 K bytes of program memory, 854 K bytes of internal data memory and 2 M bytes external DRAM. Koichi Sato is a Ph.D. student in the Department of Electrical and Computer Engineering at The University of Texas at Austin. He earned his B.S. in University of Tokyo, Japan in 1993. He worked for Automotive Development Center in Mitsubishi Electric Corporation where he was involved in lane and automobile recognition in vehicle video processing products such as automatic cruise control and drowsiness detection systems. He enrolled in the current University at 1998 and received an M.S in 2000. In his Master's thesis he worked on human tracking and human interaction recognition. His current work includes velocity extraction using the TSV transform, object tracking, and 3D object reconstruction. Brian L. Evans is a tenured Associate Professor in the Department of Electrical and Computer Engineering at The University of Texas at Austin. His research and teaching efforts are in embedded real-time signal and image processing systems. In signal processing, his research group is focused on the design and real-time software implementation of ADSL and VDSL transceivers, for high-speed Internet access. In image processing, his group is focused on the design and real-time software implementation of high-quality halftoning for desktop printers, smart image acquisition for digital still cameras, and 3-D sonar imaging systems. In signal and image processing, Dr. Evans has published over 100 refereed conference and journal papers. Dr. Evans is the primary architect of the Signals and Systems Pack for Mathematica, which has been on the market since October 1995. He was a key contributor to UC Berkeley's Ptolemy Classic electronic design automation environment for embedded systems, which has been successfully commercialized by Agilent and Cadence. His BSEECS (1987) degree is from the Rose-Hulman Institute of Technology, and his MSEE (1988) and PhDEE (1993) degrees are from the Georgia Institute of Technology. From 1993 to 1996, he was a post-doctoral researcher in the Ptolemy project at UC Berkeley. He is a member of the Design and Implementation of Signal Processing Systems Technical Committee of the IEEE Signal Processing Society, and a Senior Member of the IEEE. He is the recipient of a 1997 National Science Foundation CAREER Award. J.K. Aggarwal has served on the faculty of The University of Texas at Austin College of Engineering since 1964 and is currently Cullen Professor of Electrical and Computer Engineering and Director of the Computer and Vision Research Center. His research interests include computer vision and pattern recognition focusing on human motion. A Fellow of IEEE since 1976 and IAPR since 1998, he received the Senior Research Award of the American Society of Engineering Education in 1992, the 1996 Technical Achievement Award of the IEEE Computer Society and the graduate teaching award at The University of Texas at Austin in 1992. He has served as Chairman of the IEEE Computer Society Technical Committee on Pattern Analysis and Machine Intelligence (1987--1989); Director of the NATO Advanced Research Workshop on Multisensor Fusion for Computer Vision, Grenoble, France (1989); Chairman of the IEEE Computer Society Conference on Computer Vision and Pattern Recognition (1993), and President of the International Association for Pattern Recognition (1992--1994). He is a Life Fellow of IEEE and Golden Core member of IEEE Computer Society. He has authored and edited a number of books, chapters, proceedings of conferences, and papers.     

米酵菌酸对小鼠肝和心肌细胞毒性作用的超微结构研究

目的：观察米酵菌酸对小鼠肝、心肌细胞毒性作用的超微结构改变，探讨米酵菌酸中毒的机理，方法：小鼠腹腔注射不同剂量的米酵菌酸，2h后取其肝和心肌组织，通过电镜观察其细胞超微结构的改变，结果：电镜下可见肝细胞和心肌细胞的线粒肿胀，内嵴断裂，模糊或消失，基质局部或全部空亮，呈囊泡样变，偶见其中含髓样小体，上述线粒体内嵴和膜结构的病变随米酵菌酸剂量的增加而加重，结论：米酵菌酸对小鼠肝、心肌细胞毒性作用以线粒体的损伤较为突出，因此我们认为，线粒体内膜的破坏造成线粒体的功能障碍，影响细胞呼吸，使细胞缺氧导致小鼠中毒死亡。     

Mechanical Sensitivity Enhancement of an Area-Changed Capacitive Accelerometer by Optimization of the Device Geometry

A study of the enhancement of the mechanical sensitivity of an area-changed capacitive accelerometer by optimization of the device geometry is presented. The movable mass of the accelerometer was designed with many fingers connected in parallel and suspended over the stationary electrodes composed of differential comb fingers by means of mechanical beams anchored onto the substrate. The maximum displacement possible based on the chosen design structure was determined. From this displacement value the spring constant was calculated, and based on this spring constant value various combinations of the beam length and width were selected. The lengths and the widths were then varied and simulated using the Coventorware 2001.3 software. This was done as theoretical analysis showed that the mechanical beam dimensions are significantly more dominant in the overall device sensitivity. The displacement and spring constant variations with the beam dimensions at an applied acceleration was observed and analyzed. The same process was done for the number of fingers, length and thickness of each finger. Each of these was done in isolation based on the optimum geometry of the mechanical beams and tested to ensure that alterations of these aspects do not have a significant effect on the overall sensitivity. The modal and harmonic analysis were also simulated and observed to ensure the linearity and the stability of the dominant mode of the operation of the device. Optimum results of the device geometry are presented and discussed, along with suggested next steps.Badariah Bais received the B.S. and M.S. degrees from the Worcester Polytechnic Institute, Worcester, MA, in 1990 and 1992, respectively. Since 1997, she has been serving at the Department of Electrical, Electronics and Systems Engineering at Universiti Kebangsaan Malaysia as a teaching staff. She is currently pursuing her Ph.D. in Microelectronics at the Institute of Microengineering and Nanoelectronics (IMEN) at Universiti Kebangsaan Malaysia. Her research interests include MEMS sensors and microfabrication. She is a member of the Institute of Electrical and Electronics Engineer (IEEE).Burhanuddin Yeop Majlis received his Ph.D. in Microelectronics from University of Durham, UK in 1988, MSc. in Microelectronics from University of Wales, UK in 1980 and BSc. (Hons.) in Physics from Universiti Kebangsaan Malaysia in 1979. Now he is the director of Institute of Microengineering and Nanoelectronics (IMEN). He is a senior member of the Institute of Electrical and Electronics Engineer (IEEE) and the Chairman of IEEE Electron Devices Malaysia Chapter since 1994. He is also a member of Malaysian Solid State Science and Technology (MSSS). He has published three text books in electronics and one book on Integrated Circuits Fabrication Technology for undergraduate courses and more than 110 academic research papers. His current interest are MEMS sensor for automotive and RF applications.     

Towards Mobile Ubiquitous Service Environment

In this article we present a perspective on future vision of mobile communications and services which is referred to as Mobile Ubiquitous Service Environment (MUSE). Based on analysis of wireless communications and services, we exploit a conceptual model for MUSE via a top-down approach. The conceptual model consists of three major elements: Terminal Service Environment (TSE), Network Service Environment (NSE) and User Identity (UID). The concept of Always the Best Experience (ABE) is addressed as the hinge in design and development such that the user-centric services could be provided automatically and intelligently in the future diverse wireless world Based on these, we further discuss the issues on design and implementation of architecture of future wireless communication system. Requirements for architecture brought by the new features of MUSE are listed. Moreover, we also address several tradeoffs that should be taken into consideration in design. Finally, the deployment challenges for MUSE, such as reflectiveness of system, security and privacy, as well as peer-to-peer AAA are predicted.Ji Yang received PhD degree on Circuit and System, Bachelor degree on Telecommunication Engineering from Beijing University of Posts and Telecommunications (BUPT) in 2002 and 1993 respectively. Currently, he is an associate professor of BUPT, chief technical supervisor of Wireless Technology Innovation Institute, and vice manager of MTlab of Sino-Germany Software Institute. He leads the research on service and application in Future Forum in China. He also made much contribution to the China Communication Standardization Association (CCSA), including the vision of future Mobile Ubiquitous Service Environment, architecture of future B3G mobile terminal, etc. His research interests include architecture design for mobile ubiquitous networks, theory of self-organization, etc.Zhang Ping is now the professor of Beijing University of Posts and Telecommunications and director of Wireless Technology Innovation (WTI) Institute, BUPT. He has also served on the senior member of C3G Group, China MOST 863 future mobile communication FuTURE project, vice-chairman of China FuTURE Forum, and member of Vision Committee of World Wireless Research Forum(WWRF), he was vice chair of WWRF in 2005. He is also invited as the consultants for many domestic and oversea communication companies. He is very active on the international research activity on Beyond 3G area. He also participated in several European projects such as E2R and MOCCA. Until now, he has published 6 books, around 400 publications in journals and conferences in the area of telecommunications. His main research interests are theory and applications in wireless communication area. He was awarded by government, city of Beijing and Ministry of Information Industry several times for his great contribution to the industry and research activity in China.Hu Zheng is a PH.D candidate in mobile communications engineering in Wireless Technology Innovation Institute (WTI) at Beijing University of Posts and Telecommunications (BUPT). He received B.S degree from Nanjing University of Posts and Telecommunications in 2002, majoring in computer communications engineering. He currently works on serivce aspects of mobile ubiquitous communication system with focus on design and performance evaluation of interaction protocols and services in self-organized service environment.Wang Xu received the B.Tech. degree in electronic engineering from Beijing Polytechnic University (now named as Beijing University of Technology), Beijing, China, in 2002. Now he is working for his Ph.D. degree in Wireless Technology Innovation (WTI) Institute, Beijing University of Posts and Telecommunications (BUPT). His current interests include wireless communications in personal area, ad hoc networks and peer-to-peer system.Li Yinong received the BS degree major in Telecommunication Engineering in 1993 from Beijing University of Posts and Telecommunications, the MS degree and PhD degree major in Telecommunication and Electronic System in 1995 and 2003 from the Beijing University of Posts and Telecommunications. He is currently a lecture of STE (School of Telecommunication Engineering) of BUPT. His main research interests include service modeling, service composition approach, and intelligent service. In BUPT, he has given several lectures to both graduate and undergraduate students such as Information Theory, Speech Recognition, Pattern Recognition and Artificial Intelligence.     

All-Learning: The state of the art of the models and the methodologies educational with ICT

This paper presents a systematic review of models and methodologies that integrate information and communication technologies (ICT) and education. The systematic review was based on the methodology of Kitchenham. The steps used and developed correspond to the steps proposed in the methodology. The starting point of the review are the research questions, then keywords, selection of the databases, definition of the inclusion and exclusion criteria, the definition of the search chains, search process and selection of papers, the analyzes of the paper and the results of the systematic review to answer the questions posed. In the systematic review, 919 papers were found in 6 academic databases and 129 relevant papers were selected. The work developed intends to know the different models and methodologies that integrate the ICT and the education. Develop an analysis and characterize to find common elements among models and methodologies. The idea is to find limitations, disadvantages and spaces that allow to propose a new model. This systematic review is the first step in the development of a doctoral research in which the development of a U-Learning model based on Connective Learning and Experience Learning is proposed.     

《电工与电子技术》实验系列教材的建设与研究

本文阐述了在科技高速发展的新形势下,高等学校理工科专业加强“电工与电子技术”课程实验教学环节的重要性和进行实验教学改革的必要性;介绍了结合进行省级教学改革试点课程“电工与电子技术”实验教学的实际改革经验,编写出的3本实验系列教材对实验内容的优化与整合、体系的改革、与教材配套的网络电子课件和CAI学习测试软件的情况,以及教材的特点及应用等方面的有关问题;总结了使用该实验教材的教学经验和实际使用结果等方面的情况。     

化合物半导体器件与电路的研究进展

介绍了GaAs,InP和GaN等几种重要化合物半导体电子器件的特点、应用和发展前景。回顾了GaAs,InP和GaN材料的材料特性及其器件发展历程与现状。分别讨论了GaAs基HEMT由PHEMT渐变为MHEMT结构和性能的变化,GaAs基HBT在不同电路应用中器件的特性,InP基HEMT与HBT的器件结构及工作特性,GaN基HEMT与HBT的器件特性参数。总体而言,化合物半导体器件与电路在高功率和高频电子器件方面发展较快,GaAs,InP和GaN材料所制得的各种器件电路工作在不同的频率波段,其在相关领域发展潜力巨大。     

Service Composition for Mobile Environments

Service Composition, that is, the development of customized services by discovering, integrating and executing existing services has received a lot of attention in the last couple of years with respect to wired-infrastructure or Internet web services. With the advancement in the wireless technology and rapid deployment of mobile devices, we envision that in the near future wirelessly connected mobile devices in a given vicinity will also provide services that can be leveraged in the composition process. This is particularly true of what have been described as “pervasive computing” environments. However, wired-infrastructure based service composition architectures are not designed to consider the various factors like mobility, device heterogeneity, resource variability and reliability in a mobile environment. In this paper, we describe the issues related to service composition in mobile environments and evaluate criteria for judging protocols that enable such composition. We present a distributed architecture and associated protocols for service composition in mobile environments that take into consideration mobility, dynamic changing service topology and device resources. The composition protocols are based on distributed brokerage mechanisms and utilize a distributed service discovery process over ad-hoc network connectivity. We present simulation results of our protocols, and compare them with a centralized service composition protocol traditionally used for wired-infrastructure environments. The results show that our approach clearly outperforms the existing centralized approaches, and that our protocols are able to adapt and better utilize the changing service topology and resources in a mobile environment.This work is supported in part by NSF awards 9875433 and 0070802, DARPA DAML program and IBM. Dipanjan Chakraborty is a Ph.D candidate and a research member of ebiquity research group at University of Maryland, Baltimore County (UMBC). His reserach is in the areas of mobile and pervasive computing environments, mobile and e-commerce, peer-to-peer systems with special interests in the fields of service discovery, information aggregation and composition, ad-hoc network application-centric routing, agent-based systems. He specializes in the development and modeling of distributed architectures to enable mobile and pervasive commerce in ubiquitous environments. His thesis is in the area of service discovery and composition for pervasive environments. He has been a fellow of IBM during the 3 years of his Ph.D candidacy. Anupam Joshi is an Associate Professor of Computer Science and Electrical Engineering at UMBC. Earlier, he was an Assistant Professor in the CECS department at the University of Missouri, Columbia. He obtained a B. Tech degree in Electrical Engineering from IIT Delhi in 1989, and a Masters and Ph.D. in Computer Science from Purdue University in 1991 and 1993 respectively. His research interests are in the broad area of networked computing and intelligent systems. His primary focus has been on data management for mobile computing systems in general, and most recently on data management and security in pervasive computing and sensor environments. He has created agent based middleware to support discovery, composition, and secure access of services/data over both infrastructure based (e.g. 802.11, cellular) and ad-hoc wireless networks (e.g. Bluetooth). He is also interested in Semantic Web and Data/Web Mining, where he has worked on personalizing the web space using a combination of agents and soft computing. His other interests include networked HPCC. He has published over 50 technical papers, and has obtained research support from NSF, NASA, DARPA, DoD, IBM, AetherSystens, HP, AT&T and Intel. He has presented tutorials in conferences, served as guest editor for special issues for IEEE Personal Comm., Comm. ACM etc., and served as an Associate Editor of IEEE Transactions of Fuzzy Systems from 99-03. At UMBC, Joshi teaches courses in Operating Systems, Mobile Computing, Networking, and Web Mining. He is a member of IEEE, IEEE-CS, and ACM. Tim Finin is a Professor in the Department of Computer Science and Electrical Engineering at the University of Maryland Baltimore County (UMBC). He has over 30 years of experience in the applications of Artificial Intelligence to problems in information systems, intelligent interfaces and robotics and is currently working on the theory and applications of intelligent software agents, the semantic web, and mobile computing. He holds degrees from MIT and the University of Illinois. Prior to joining the UMBC, he held positions at Unisys, the University of Pennsylvania, and the MIT AI Laboratory. Finin is the author of over 180 refereed publications and has received research grants and contracts from a variety of sources. He has been the past program chair or general chair of several major conferences. He is a former AAAI councilor and is a member of the the board of directors of the Computing Research Association. Yelena Yesha received the B.Sc. degree in Computer Science from York University, Toronto, Canada in 1984, and the M.Sc. and Ph.D degrees in Computer and Information Science from The Ohio State University in 1986 and 1989, respectively. Since 1989 she has been with the Department of Computer Science and Electrical Engineering at the University of Maryland Baltimore County, where she is presently a Verizon Professor. In addition, from December, 1994 through August, 1999 Dr. Yesha served as the Director of the Center of Excellence in Space Data and Information Sciences at NASA. Her research interests are in the areas of distributed databases, distributed systems, mobile computing, digital libraries, electronic commerce, and trusted information systems. She published 8 books and over 100 refereed articles in these areas. Dr. Yesha was a program chair and general co-chair of the ACM International Conference on Information and Knowledge Management and a member of the program committees of many prestigious conferences. She is a member of the editorial board of the Very Large Databases Journal, and the IEEE Transaction on Knowledge and Data Engineering, and is editor-in-chief of the International Journal of Digital Libraries. During 1994, Dr. Yesha was the Director of the Center for Applied Information Technology at the National Institute of Standards and Technology. Dr. Yesha is a senior member of IEEE, and a member of the ACM.This revised version was published online in August 2005 with a corrected cover date.     

E-government familiarity influence on Jordanians’ perceptions

E-government is becoming an important topic and is attracting more and more research. Its adoption is determined by many factors among which user’s familiarity is not a well researched one. Without a real longitudinal research, familiarity cannot be investigated. To explore the influence of e-government familiarity, we utilized two samples with two different objectives. The first sample utilized 241 responses to understand the relative awareness of 20 concepts that are known to belong to e-government topic. The second sample included a two stage method, with an extended survey. A survey including the 20 concepts and an additional 14 items measured four constructs: perceived usefulness, perceived ease of use, privacy and security assurance, and trust in e-government. The second survey was distributed to a class of 50 students at the start of an e-government course and at the end of it.Results of the first survey indicated high levels of awareness in regard to service provision, time and location, and necessity of information needed. Dimensions like digital divide (gender and accessibility) and social change were among the highly recognized topics. On the other hand, e-participation and political concepts of e-government were moderately perceived by the sample. Results of the second sample indicated a significant influence of familiarity with e-government (gained from the course content) on 14 items out of the 20 used. Also, perceived usefulness and privacy and security assurance were significant predictors of trust in e-government. Finally, all item means increased in the second stage except for one item only. Governments need to raise awareness regarding e-government initiatives and improve citizens’ familiarity with the topic.     

植物园

植物园（含树木园）以科学研究、保护、展示和教育为目的,收集保存活植物并保有其档案记录。其主要任务是迁地保护植物多样性、实现其资源的可持续利用,开展相应的植物展示、科普教育和科学研究。全世界现有约2 000个各种类型的植物园和树木园,保存了80 000种植物,包括许多珍稀、濒危的植物种类。中国的植物园目前已达约160个,在植物引种、驯化、开发利用、保护方面取得了巨大成绩,在科普教育、旅游服务方面的重要性得到承认。植物园工作者在相关研究领域取得了理论和技术的创新成果,在管理、政策、培训和植物记录系统计算机化方面也在和世界接轨。面临生物多样性保护与可持续发展的挑战和机遇,我们期待中国的植物园在建园、植物收集保存、科普旅游、能力建设、科学研究等领域取得更大成绩,更好地满足经济和社会发展、环境和资源保护利用的需求,与世界植物园同步前进。