pseudo-aneurysm of the femoral artery is the most common arterial complication in drug injecting abusers. scholars in vascular surgery have published debating statements regarding techniques of successful surgical management during last two decades. we present the results of simple arterial ligation in a series of 32 patients presenting with infected femoral pseudo-aneurysm. most of the patient...

For several years, the structuring approaches for modular product families have been developed in industry. The modularization leads often to the use of configurator, which is a computer application used to manage the relations of modules, connections and rules between different customer segments. Configurator brings benefits to the whole delivery process, by removing the information gaps from ...

Introduction We often use the word “agent” to describe people who have a helping or assistive relationship to us – travel agents, secretaries, butlers. The job of such an agent is to act autonomously to satisfy goals that we may have, give us a greater sense of productivity and reduce our workload. In this article, we’ll use the word agent to describe software that plays a similar role – provid...

We introduce a usability evaluation system that provides automatic, quantitative analysis of usage trace data. A problem with existing usability evaluation techniques such as expert evaluation and walk-throughs is that the results are subjective and qualitative. Observational research leads to the most relevant results, but it can be expensive, and analysis of the results is tedious. In the sys...

Suppose that sometimes he found it impossible to tell the difference between the real men and those which had only the shape of men, and had learned by experience that there were only two ways of telling them apart: first, that these automata never answered in word or sign, except by chance, to questions put to them; and second, that though their movements were often more regular and certain th...

One of the main challenges in the biomedical sciences is the determination of reaction mechanisms that constitute a biochemical pathway. During the last decades, advances have been made in building complex diagrams showing the static interactions of proteins. The challenge for systems biologists is to build realistic models of the dynamical behavior of reactants, intermediates and products. For...

Virtual reality exposure therapy is slowly becoming a viable option for therapists. For virtual reality systems to be used in the daily practice of therapists, their usability needs to be taken into consideration. This paper describes the current state-of-the-art in interfaces for these systems, and describes several proposals for improving the design of these systems. An exploratory evaluation...

A number of factors have been identified that are related to sexual and injecting HIV transmission. We developed a probabilistic mathematical model to put these factors together and interpret risks in the context of individual behavior among injecting drug-using (IDU) couples in St. Petersburg, Russia. Some HIV-discordant couples have unprotected sex and sometimes inject drugs together but stay...