background and purpose:     methods:       results:       between the two settings. however, the mean score for lecture sessions was slightly higher in lecture settings. conclusion:     key words       : l ecturing , c omputer b ased l earning , d istance e ducation since this study reveals that the learning outcomes in traditional lecture based settings and computer based study are not signifi...

The purpose of this study was to compare the participation in physical activity and computer games on the social development of students. The population of this research was made up entirely of male students from secondary schools in the city of Marivan (mean age of 13.5 years). Among them, 300 were selected purposively (150 athletes, 150 computer games players). In order to collect the informa...

We use our method of approximation to relate various classes of computable functions over the reals. In particular, we compare Computable Analysis to the two analog models, the General Purpose Analog Computer and Real Recursive Functions. There are a number of existing results in the literature showing that the different models correspond exactly. We show how these exact correspondences can be ...

background and purpose: presently, the method of medical teaching has shifted from lecture-based to computer-based. the learning style may play a key role in the attitude toward learning computer. the goal of this study was to study the relationship between the learning style and attitude toward computer among iranian medical students. methods: this cross-sectional study included 400 medical st...

Neural classifier for multi-purpose image recognition systems is developed. One of the applications is an adaptive control system based on image recognition system for micromechanics where the limited receptive area (LIRA) neural classifier is proposed for texture recognition of mechanically treated metal surfaces. The performance of the proposed classifier was tested on image database with fou...

We investigate the computational complexity of the solution of y′ = f(t, y) when f : R → R is primitively recursive computable. In particular, we show that there is some f and initial conditions with complexity on the level E, n ≥ 3, of Grzegorczyk’s hierarchy, such that the complexity of the unique solution y does not collapse to the previous level E. As a corollary, we present some connection...

In this paper we revisit one of the first models of analog computation, Shannon’s General Purpose Analog Computer (GPAC). The GPAC has often been argued to be weaker than computable analysis. As main contribution, we show that if we change the notion of GPACcomputability in a natural way, we compute exactly all real computable functions (in the sense of computable analysis). Moreover, since GPA...

purpose: to investigate associations between computer use data and sleep quality among university students. materials and methods: this descriptive, cross-sectional study was performed on 312 students of tehran university of medical sciences, iran. data was collected using epworth sleepiness scale (ess), insomnia severity index (tsi), pittsburgh sleep quality index (psqi), and a background and ...