As globalization moves forward, many IS/IT investments are being deployed across organizations located in different countries and world regions. Cross-system and inter-system integration and collaboration technologies play essential roles and often determine investment success or failure. However, economic, social and other factors outside the system must also be taken into consideration for gl...

Single lines and gratings oriented vertically or at 45 dcg were observed as prolonged afterimages in two experiments. The duration of complete visibility exhibited consistent orientation selectivity for the gratings but not for single lines; vertical gratings were visible for longer than were 45-deg gratings. The results are discussed in relation to the hypothesized spatial frequency channels i...

Users perceive good Internet performance as characterized by low latency, high throughput and high availability. When browsing the Web, users are concerned with the performance of entire pages. Understanding and identifying the sources of the performance problems are very important issues, especially for e-business. Therefore, there is the need to have a service for testing and measuring e-busi...

There is huge amount of data generated in modern hospitals, such as medical records, lab reports and doctor notes. Health care systems employ a large number of categorization and classification systems to assist data management for a variety of tasks such as patient care, record storage and retrieval, statistical analysis, insurance and billing. One of these systems is the International Classif...

the internet has transformed the manner of conducting commercial transactions and has created regulatory gaps. these regulatory gaps may impact the effective development of electronic commerce. attempts are being made to regulate electronic contracts both at the national and international level. the present research analyses these attempts, in particular the electronic transaction legislation o...

about electronic signatures there are more or less some writings concerning their legal aspect. but in those writings there has been a little attention to credibility and evidential value of the electronic signatures. some questions and ambiguities despite being set before has not been answered at all or answered unsatisfactorily. meanwhile, some authors have made mistakes and some have set tri...