269 research outputs found

    AGM-Style Revision of Beliefs and Intentions from a Database Perspective (Preliminary Version)

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    We introduce a logic for temporal beliefs and intentions based on Shoham's database perspective. We separate strong beliefs from weak beliefs. Strong beliefs are independent from intentions, while weak beliefs are obtained by adding intentions to strong beliefs and everything that follows from that. We formalize coherence conditions on strong beliefs and intentions. We provide AGM-style postulates for the revision of strong beliefs and intentions. We show in a representation theorem that a revision operator satisfying our postulates can be represented by a pre-order on interpretations of the beliefs, together with a selection function for the intentions

    PREDICTOR VALIDITY OF MORPHOLOGICAL AND BASIC MOTOR VARIABLES FOR ASSESSMENT AND MONITORING OF THE KARATE PUNCH WITH THE LEAD ARM (OI-TSUKI)

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    The purpose of this study was to determine the influence of morphological and basic motor variables on the karate forward punch (oi tsuki) as the only criterion variable, and secondly, to design a test battery for the assessment and monitoring of boys in karate, based on the predictive validity of the tested variables. A system of 25 variables in total – 12 morphological, 12 basic motor (the system of predictor variables) and 1 variable of situational moving structure (criterion variable), i.e. the karate punch with the lead arm (oi-tsuki) – was applied on a sample of 82 karate trainees aged between 10 and 14. The results of regression analysis showed that a system of morphological and basic motor variables had a significant impact on punching with the lead arm (p<0.01). The stepwise method identified the largest individual value in the case of morphological variables of arm length, upper arm skinfold and body mass at the level of significance p<0.01, whereas basic motor variables (long jump from a standing start and half squat with weight) also have a level of significance p<0.01. This shows that respondents with longer arms, less subcutaneous fat tissue on the upper arm, higher body mass and greater static and explosive strength of the lower extremities achieve better results. Determining predictor validity by regression analysis and the stepwise method is employed in order to diagnose, assess, monitor and evaluate the direct punch with the lead arm, so the next battery of measurement instruments can be constructed: arm length, upper arm skinfold, body mass, half squat with weight, long jump from a standing position

    Prevalence of behavioral risk factors of non-communicable diseases among urban and rural population in the Federation of Bosnia and Herzegovina

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    Introduction The objective of the paper is to analyze and to assess prevalence of the major behavioral risk factors among adult population (25-64 years of age) in the rural and urban areas in the Federation of Bosnia and Herzegovina (FBIH).Methods Data were taken from cross-sectional population survey on the health status population in the FBIH. To ensure a sample representative for the adult population in the FBIH it was applied the two-stage stratified systematic sample. The survey covered a total of 2735 adult population aged 25-64 years, of which 1087 in the urban areas and 1648 in rural areas.Results. The prevalence of smoking among men in rural areas is significantly higher than among men in urban areas (69% vs. 55%), while the prevalence of smoking among women is higher in urban than in rural areas (45% vs. 31%). There is no statistically significant difference in prevalence of obesity and physical activity according to the age groups among men and women in the urban and rural areas. The frequency of changes in behavior related to acquiring healthy living habits in the rural areas is statistically significant among men and women, while in the urban areas there is no statistical significance among the sexes.Conclusions. The results indicate that there are no significant differences in prevalence of factor risks in urban and rural areas. Prevalence of unhealthy lifestyles is high, and the results should be used to improve standard planning of health promotion-prevention programs

    Awareness, treatment, and control of hypertension among adult population in the Federation of Bosnia and Herzegovina over the past decade

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    Background. Many studies throughout the world show that hypertension is not effectively treated and controlled, which continued to pose an important challenge in health systems in the world. Design and methods. Population surveys were carried out in 2002 and 2012 in the Federation of Bosnia and Herzegovina (FBIH) on representative sample at the age of 25-64. The surveys used systematic stratified sample. Questionnaires and anthropometric measure protocols were adapted from internationally recommended surveys. Results. In the past ten years there has been a slight increase in hypertension prevalence in researched population (41% vs. 42%). Percentage of hypertensive male and female respondents who are not aware of their hypertension actually dropped in the past decade from 54.3% to 51.4%. In 2002 total number of hypertensive respondents aware of their hypertension included 8.1% of male respondents and 10.3% female respondents whose condition was not treated and this rate effectively dropped during the 10-year period. Number of hypertensive, treated, and uncontrolled respondents dropped as reported in the 2012 survey; consequently percentage of hypertensive, treated, and controlled respondents in the 2012 survey increased, in particular in female population.Conclusions. Investments in primary health care, improved availability, and improved quality of health care in the FBIH in the past 10 years can explain increased rate of hypertension detection and treatment; however, efforts should be continued to introduce hypertension screening programs and hypertension control programs

    Influence of intermittent drying on mass and heat transport phenomena during drying of spherical shaped material

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    Prikazana je procedura modelovanja prekidnog sušenja materijala sfernog oblika u tankom sloju, nakon čega je pokrenuta računarska simulacija procesa na osnovu predloženog modela. Zatim, odrađeno je eksperimantalno istraživanje, za šta su korišćeni svježe ubrani orasi u ljusci, bez komine. Nakon što je statistički potvrđena pouzdanost modela, on je iskorišćen kao baza formiranje modela za simulaciju sušenja u debelom sloju. Posle toga su urađeni eksperimenti i za druge materijale različitih osobina (krompir, bundeva i kestenje), da bi se izveli zaključci o mogućnosti energetske uštede u procesima konvektivnog sušenja u zavisnosti od fizičkih osobina materijala. Ovim istraživanjem pokazano je da su sa stanovišta uštede energije prekidni režimi konvektivnog sušenja preporučljiviji kod materijala koji imaju veću efektivnu difuzivnost.This research shows the procedure of modeling the intermittent drying of sphereshaped materials in a thin-layer, after which the computer simulation was done, based on the proposed model. Тhe experimental investigation has been done, where the fresh collected in-shell walnuts had served as the main drying material. As the model reliability was experimentally confirmed, it was used as а basis for creating а model for deep-bed drying simulation. Afterwards, the experimental investigation was done for other materials as well (potato, pumpkin and chestnuts), in order to draw the conclusions concerning the possibility of energy saving in convective drying processes, as it depends on physical properties of a material. This research showed that, from the perspective of energy saving, it is more advisable to use an intermittent regime if a material has a higher effective diffusivity

    Measures of inconsistency and defaults

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    AbstractWe introduce a method for measuring inconsistency based on the number of formulas needed for deriving a contradiction. The relationships to previously considered methods based on probability measures are discussed. Those methods are extended to conditional probability and default reasoning

    Influence of intermittent drying on mass and heat transport phenomena during drying of spherical shaped material

    Get PDF
    Prikazana je procedura modelovanja prekidnog sušenja materijala sfernog oblika u tankom sloju, nakon čega je pokrenuta računarska simulacija procesa na osnovu predloženog modela. Zatim, odrađeno je eksperimantalno istraživanje, za šta su korišćeni svježe ubrani orasi u ljusci, bez komine. Nakon što je statistički potvrđena pouzdanost modela, on je iskorišćen kao baza formiranje modela za simulaciju sušenja u debelom sloju. Posle toga su urađeni eksperimenti i za druge materijale različitih osobina (krompir, bundeva i kestenje), da bi se izveli zaključci o mogućnosti energetske uštede u procesima konvektivnog sušenja u zavisnosti od fizičkih osobina materijala. Ovim istraživanjem pokazano je da su sa stanovišta uštede energije prekidni režimi konvektivnog sušenja preporučljiviji kod materijala koji imaju veću efektivnu difuzivnost.This research shows the procedure of modeling the intermittent drying of sphereshaped materials in a thin-layer, after which the computer simulation was done, based on the proposed model. Тhe experimental investigation has been done, where the fresh collected in-shell walnuts had served as the main drying material. As the model reliability was experimentally confirmed, it was used as а basis for creating а model for deep-bed drying simulation. Afterwards, the experimental investigation was done for other materials as well (potato, pumpkin and chestnuts), in order to draw the conclusions concerning the possibility of energy saving in convective drying processes, as it depends on physical properties of a material. This research showed that, from the perspective of energy saving, it is more advisable to use an intermittent regime if a material has a higher effective diffusivity
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