نتایج جستجو برای: evolution
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background: responsiveness is one of the three main goals of the health system introduced by world health organization. this study aimed at examining health system responsiveness after health sector evolution plan in kermanshah, western iran. methods: a sample of 335 hospitalized patients was selected using proportionate allocation to population size method in the city of kermanshah (iran) in 2...
the political and social system involved in the limbo between tradition and modernity of the qajar era caused widespread and quick developments in iranian culture, art, and architecture as well as a challenge between tradition and modernity. relatively numerous palaces built in this era were signs of greatness and distinction-seeking of the qajar kings and aristocrats, who embraced all transfor...
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ibn-khaldun,s social change theory has been often classified as cyclic theoty of social changes that has three stages includes in generation, growth and progress and ultimately regressive and decadence. but, what is inferred by rethink in text of ibn-khaldun,s moghaddame, are two different courses,as interrelated to each other, “civilizational evolution” and “cyclic changes of state.avoiding ma...
background and aims: visit quality is a crucial component of patient-physician interaction that its inadequacy can negatively influence the diagnosis and treatment efficiency. the waiting time and visit length are important determinants of quality in the outpatient care setting. thus, the aim of this study was to determine waiting time and visit length and to compare them before implementation ...
asymptotically exact and nonlocal third order nonlinear evolution equations are derivedfor two counterpropagating surface capillary gravity wave packets in deep water in thepresence of wind flowing over water.from these evolution equations stability analysis ismade for a uniform standing surface capillary gravity wave trains for longitudinal perturbation. instability condition is obtained and g...
Studies on the evolutionary history of ascomycetes in terms of time scale will help to understand historical patterns that shape their biodiversity. Until now most of dating studies of ascomycetes have focused on major events in fungal evolution but not on divergence events within smaller groups of fungi e.g. within Sordariomycetes. We used molecular dating to estimate the time of separation of...
We characterize hyperbolic evolution families on a Banach space X by means of spectral properties of the induced semigroup on the spaces C 0 (IR; X) and L p 1. Exponentially dichotomic and hyperbolic evolution families Given a non{autonomous Cauchy problem _ u(t) = A(t)u(t); u(s) = x s 2 X ; t s 2 IR; (nCP) on a Banach space X with possibly unbounded operators A(t), t 2 IR, on X, the solutions ...
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