We show that the oscillatory driving of crystal surfaces can induce pattern formation or smoothening. Depending on driving conditions, step bunching and meandering, mound formation, or surface smoothening may be seen in the presence of a kinetic asymmetry at the steps or kinks. We employ a step model to calculate the induced mass flux along misoriented surfaces, which accounts for surface dynam...

The aim of this study was to investigate the effect of executive programs of infection control committees on the incidence of nosocomial infections in hospitals affiliated with the Kermanshah University of Medical Sciences (Kermanshah, Iran) during 2010 and 2011. The numbers of patients admitted in 2010 and 2011 were 8084 and 7166, respectively, and the average prevalence of nosocomial infectio...

OBJECTIVE To describe the number and nature of emergency department (ED) attendances by immigration detainees in Darwin, in the Northern Territory, over a 12-month period. DESIGN AND SETTING Retrospective observational study of immigration detainees attending the Royal Darwin Hospital ED during the 2011 calendar year. MAIN OUTCOME MEASURES Number of ED attendances and primary diagnoses. R...

Introduction: A normal sexual desire plays an important role in marital stability; therefore, it is essential to identify factors affecting it. Aim: The present study aimed predict based on emotional self-regulation, experiential avoidance, and depressive symptoms female teachers Bafq, Iran. Method: In this descriptive-correlational study, the statistical population consisted of 225 teachers, w...

BACKGROUND Women's health is a key factor affecting the health of the whole population. Tackling inequality in determinants of health is recognized as the main path toward reducing the inequality in health outcomes. This study aimed to analyze the provincial inequality in determinants of women's health and health care in Iran. METHODS Using the Moss's model (2002) as a comprehensive framework...

We study the control of modulational instability and pattern formation in a nonlinear dissipative feedback system with a periodic modulation of the material refractive index. We use a one-dimensional photonic lattice in a single-mirror feedback configuration and identify three mechanisms for pattern control: bandgap suppression of instability modes, periodicity induced pattern modes, and orient...

We present some numerical results obtained from a simple individual-based model that describes clustering of organisms caused by competition. Our aim is to show that, even when a deterministic description developed for continuum models predicts no pattern formation, an individual-based model displays well-defined patterns, as a consequence of fluctuation effects caused by the discrete nature of...

Background: Gastrointestinal (GI) tract is the most common site for extranodal lymphoma. The primary GI lymphoma pattern in Iran different from western countries and has been changed during past 40 years. Objectives: This study was done to determine clinical pathological characteristics of Tehran, Hamedan, Mashhad regions Iran. Methods: In this cross-sectional comparative-descriptive study, 200...