background and aim of study: long span is seen in many clinical situations, treatment planning options of these cases are difficult and may require: fpd, rpd or isp. each option has its own disadvantages: mechanical, patient relief and cost respectively. this article will evaluate the stress distribution of another treatment option which is adding a single supporting implant to the fpd by using...

background and aims. in contrast to prepared natural dentin abutments, little is known concerning factors influencing the retention of fixed prostheses cemented to implant abutments. the aim of this study was to investigate the effect of implant abutment height on the retention of single castings cemented to wide and narrow platform implant abutments. materials and methods. thirty-six parallel-...

computer-supported collaborative learning (cscl) is a new trend in educational sciences. this study investigates how knowledge sharing and transferring can be facilitated by using cscl in a problem-solving setting. intervention of research is education regarding sustainable water resources management (swrm) by computer-supported collaborative learning (cscl). the purpose of this research was to...

crestal bone loss is a biological complication in implant dentistry. the aim of this study was to compare the effect of progressive and conventional loading on crestal bone height and bone density around single osseointegrated implants in the posterior maxilla by a longitudinal radiographic assessment technique.twenty micro thread implants were placed in 10 patients (two implants per patient). ...

the difficult to handle and store zinc borohydride, zn(bh4)2, is stabilized by supporting it on polyvinylpyridine. this new mild, efficient, selective, and regenerable polymer supported borohydride reducing agent reduces a variety organic compounds such as, aldehydes, a-b-unsaturated carbonyl compounds, acid chlorides, epoxides, disulfides, as well as reductive acetylation of carbonyl compounds...

This paper discusses a three-year experiment to build a distributed research group, equipped with state-of-the-art computing facilities, spread over three cities in Australia. Despite the provision of the sorts of facilities to be expected in cooperative buildings, such as high-speed networks and videoconferencing, significant synergy (i.e., closely-coupled collaborations) among the distributed...

Cooperation is significantly influenced by participants’ awareness of relevant information. The objective of this paper is to propose a methodology to design and develop applications that assist individuals to identify their awareness. Through extending Cooperative management Methodology for Enterprise Networks (CoMEN), this article introduces Policy-based Awareness Management (PAM) a software ...

This paper investigates some of the issues which will determine the viability of the world-wide web as an infrastructure for cooperative work. In fact, taking a weak definition of collaboration, the web is already a very successful collaborative environment. In addition, it is already being used as the basis for experimental and commercial groupware. The paper takes this as a starting point and...

Networked multimedia applications are increasingly deployed to support cooperative work. They may, however, pose novel challenges to design and implementation of the technology. This paper presents an empirical study of a video-based telemedicine project the DIMedS project (Development of Interactive Medical Services). The experiences from the project are summarised, with focus on the requireme...

In this paper is described how computer supported cooperative work can be used to enhance project development memory, focusing on software development. The collaboration model that is presented is based upon the concepts of communication, coordination and cooperation. Each of these concepts is analyzed regarding software specification. The paper presents some examples of systems that seek to ca...