نتایج جستجو برای: and similar themes
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An ordinary differential equation x = f (t, x(t)) (ODE) uniquely assigns the time derivative x (t) = d dt x(t) as a function of t and x. A differential inclusion x ∈ F (t, x(t)), (DI) on the other hand, only requires that the derivative x be inside a given set F (t, x) ⊂ R n. Therefore, given an initial condition x(0) = ¯ x, one can usually find several solutions of (DI). f(x) x _ x _ x x F(x) ...
Background: Various methods have been proposed for sampling when data on the population are limited. However, these methods are often biased. We propose a new method to draw a population sample using Global Positioning Systems and aerial or satellite photographs. Results: We randomly sampled Global Positioning System locations in designated areas. A circle was drawn around each location with ra...
Introduction: schizophrenia is a chronic condition that leads to debilitating consequences, is associated numerous challenges. So families need long-term psychosocial support. Methods: the study was performed by interpretive descriptive method. Using purposive sampling, 30 participants participated in the study. Data were collected through individual interviews and coded, codes with similar the...
Background: Conflicts between work and family wants are inevitable in organizations and families. This, in turn, creates psychological problems in people's personal and working life. The aim of this study is to present a model of work-family conflict management among employees of Iran University of Medical Sciences during COVID-19 pandemic. Methods: This was a qualitative study conducted in 20...
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