هدف: هدف پژوهش حاضر، ساخت و اعتبار­سنجی سیاهه آسیب‌شناسی روانشناختی نوجوانان در فضای مجازی بود. روش: روش آمیخته اکتشافی (کیفی-کمی) بدین منظور با استفاده از تحلیل مضمون مقالات مصاحبه‌های انجام‌شده متخصصان فعال مجازی، آسیب­ ها شناسایی شدند بر اساس آن ­ای ساخته شد. جامعه آماری بخش کیفی شامل مقالات، اساتید دانشگاه­ های اراک، اصفهان، امام خمینی قزوین شهر اراک بودند که نمونه هدفمند آنها انتخاب کمی بو...

Data distribution among processors and internode message routing are two central issues in the implementation of a parallel algorithm on a multiprocessor computing system (MCS); see [3, 6]. Graphical representations of the parallel algorithm and the interconnection network of the MCS are useful in theoretically analyzing the implementation details. A parallel algorithm P is represented by a gra...

(1) sk = { vk if k ≤ n , ∑n−1 i=0 aisk−n+i if k > n , consists of all nonzero elements of V for k = 1, . . . , p − 1. Such generating patterns are of interest because they provide simple algorithms for generating the linear span of independent subsets of vector spaces over Fp (see [1] for details). In this paper we generalize a number of the results from [1] by working over Fq where Fq is the f...

Let Fq be the finite field with q elements and, for each positive integer n, let Aq(n) number of non isomorphic functional graphs arising from Fq-linear maps T:Fqn→Fqn. In 2013, Bach and Bridy proved that, every prime power q, we have that 12≤liminfn→+∞log⁡log⁡Aq(n)log⁡n≤limsupn→+∞log⁡log⁡Aq(n)log⁡n≤1. By combining some ideas linear algebra, combinatorics theory, in this paper provide sharper e...

We study the existence of non-special divisors of degree g and g − 1 for algebraic function fields of genus g ≥ 1 defined over a finite field Fq. In particular, we prove that there always exists an effective non-special divisor of degree g ≥ 2 if q ≥ 3 and that there always exists a non-special divisor of degree g − 1 ≥ 1 if q ≥ 4. We use our results to improve upper and upper asymptotic bounds...

We study the existence of non-special divisors of degree g and g − 1 for algebraic function fields of genus g ≥ 1 defined over a finite field Fq. In particular, we prove that there always exists an effective non-special divisor of degree g ≥ 2 if q ≥ 3 and that there always exists a non-special divisor of degree g − 1 ≥ 1 if q ≥ 4. We use our results to improve upper and upper asymptotic bounds...