1 Currently two projects are on their way to standardize physical layer and medium access control for wireless LANs-IEEE 802.11 and ETSI RES10 Hiperlan. This paper presents an introduction to both projects focussing on the applied access schemes. Fyrther we will present our simulation results, analyzing the performance of both access protocols depending on the number of stations and on the pack...

An open model called QEST (Quality factor + Economic, Social & Technical dimensions) has been developed to handle, simultaneously and concurrently, threedimensional viewpoints of performance. This model was developed initially to represent multiple views of performance of completed projects. It originally represented a static view of projects. This paper presents an extension to this QEST model...

Understanding the evolutionary processes driving the adaptive differentiation of populations is of broad interest in biology. Genome-wide nucleotide polymorphisms provide the basis for population genetic studies powered by advances in high-throughput sequencing technologies. These advances have led to an extension of genome projects to a variety of non-genetic model organisms, broadening our vi...

Impact loading is a major factor in the high prevalence of musculoskeletal injuries among military personnel during operational tasks. One of the therapeutic purposes of a pedorthic approach is to attenuate impact load through footwear and supportive device cushioning. The following research pilot project attempts to investigate this relationship. Vertical acceleration was collected at the four...

Reminiscence may help in resolving conflicts from the past and making up the balance of one's life. Life-review may be further enhanced by the creative expression of memories in stories, poems or drawings. In this way people are encouraged to create and discover metaphors, images and stories that symbolically represent the subjective and inner meaning of their lives. In this article, a new inte...

This study is carried out in the framework of SUCCESS (Smaller Urban Communities in CIVITAS for Environmentally Sustainable Solutions), an European project funded by the European Commission under the CIVITAS program. These demonstration projects provide a means of testing out a wide range of projects in a number of cities and the results of the evaluation will assist in showing which were succe...

Post-harvest losses represent a significant threat to food security and farmer incomes worldwide. It is an inefficiency in the global food production system that is avoidable. In deducing principles of designing and implementing agricultural extension programs to reduce post-harvest losses, valuable lessons can be gleaned from the handful of previous extension projects and programs addressing p...

the governments of the People's Republic of China and Portugal through a contribution to the UNU Endownment Fund. As well as providing two-thirds of the endownment fund, the Macau authorities also supply UNU/IIST with its ooce premises and furniture and subsidise fellow accommodation. The mission of UNU/IIST is to assist developing countries in the application and development of software techno...