This paper summaries our recent work on the application of the concepts of capacity per unit cost and reliability function per unit cost to models of fading channels. The cost is taken to be the energy, or a certain fourth moment functional that is sensitive to the bursti-ness of the signals, and is related to the ambiguity function of the input signal. The channel is assumed to be a Wide-Sense...

The study aimed to shed light on the use of gesture in resolving lexical ambiguity employed by TEFL students. To this end, 60 intermediate Iranian learners, studying at Kish Way Language School in Iran were recruited. The participants were randomly put into two experimental groups and one control group. Both of the experimental groups received the same teaching approach, i.e. teaching homonyms ...

Analyzing political conservatism as motivated social cognition integrates theories of personality (authoritarianism, dogmatism-intolerance of ambiguity), epistemic and existential needs (for closure, regulatory focus, terror management), and ideological rationalization (social dominance, system justification). A meta-analysis (88 samples, 12 countries, 22,818 cases) confirms that several psycho...

هدف: پژوهش حاضر با هدف شناسایی پیامدهای تحمل ابهام رهبران و طراحی الگوی جامعی از این پیامدها صورت ­گرفته ­است.طراحی/ روش‌شناسی/ رویکرد: رویکرد کیفی روش تحلیل­ مضمون انجام­ شده­ است. جامعه­ آماری عبارتند خبرگان دانشگاهی اجرایی وزارت نفت که تجربه تصمیم‌­گیری مدیریت در شرایط عدم اطمینان را دارند. نمونه نوزده نفر بوده ­است. نمونه‌­گیری پژوهش، هدفمند گلوله‌برفی انجام ­شد. داده‌ها نیز طریق مصاحبه گرد...

We analyzed the effect of time and frequency domain windowing, or weighting, of the transmitted signal for least squares (LS) and minimum mean-square error (MMSE) estimators when the channel is time-variant. We considered the estimation error for different windows and we found that the windows can be selected independently. We explained the performance of the estimators with the help of the rad...

This empirical study which is based in Malta seeks to characterize the personality/psychological profile of Maltese entrepreneurs (business owners and self-employed persons) and employed managers. The characteristics investigated in this study are the need for achievement, locus of control, tolerance towards ambiguity, self-confidence, creativity/innovativeness, risk-taking propensity and self-...

Background: Unethical behavior among nurses is gradually becoming a serious problem in the health sector of Nigeria and this call for urgent concern. However, it may be associated with issues inside health care organizations. This therefore prompted this study to investigate the relationship between role ambiguity, organizational justice and unethical behavior among nurses. Methods: The study ...