Relevance has become a major area of research in the ®eld of Information Retrieval, despite the fact that the concept relevance is not well understood. This paper models manifestations of relevance within a system of relevance attributes to show that the attributes function in di€erent dimensions for the di€erent manifestations of relevance. It is shown that motivational relevance, as a manifes...

Although left-right items are a standard tool of public opinion research, there remains some difference of opinion on the optimal response format. Two disputes can be identified in the literature: (a) whether to provide respondents with a small or large number of answer categories and (b) whether or not to administer the response scale including a midpoint. This study evaluates the performance ...

background: thalassemia is a chronic, inherited blood disorder, which in its most severe form, causes life-threatening anemia. thalassemia patients not only engage with difficulties of blood transfusion and iron chelating therapy but also have some social challenges and health threatening factors. there are some reports on quality of life in thalassemia patients around the world from southeast ...

A number n is said to be economical if the prime power factori-sation of n can be written with no more digits than n itself. We show that under a plausible hypothesis, related to the twin prime conjecture, there are arbitrarily long sequences of consecutive economial numbers, and exhibit such a sequence of length 9.

In 1994 Orlikowski and Gash articulated Technological Frames of Reference as a systematic theoretical lens to examine technological developments in organisations. A decade later, in 2004, Davidson and Pai expressed concern that while the lens was widely cited in academic discourse, the incidence and adoption of the model as an analytical framework for socio-cognitive analysis and interpretation...

We describe a general methodology, socio-cognitive engineering, for the design of human-centred technology. It integrates software, task, knowledge and organizational engineering and has been refined and tested through a series of projects to develop computer systems to support training and professional work. In this paper we describe the methodology and illustrate its use through a project to ...

aim: evidence indicates that demographic factors such as age, gender, and mother's literacy are important predictors of fruit and vegetable consumption among adolescents. so, this study was conducted in order to survey the relation between socio-demographic factors and fruit and vegetable consumption among tehranian adolescents in 2013. methods: this cross-sectional study (descriptive-analytic)...

objectives: stroke survivors develop their own strategies to combat disabilities, developing strategies to maintain or reestablish a sense of continuity after the disruptive life event that stroke represents, using strategies to foster hope during the process of adjusting to life after stroke and drawing on spiritual practices. the aim of this study is to identify the used and recommended strat...