Title of dissertation: PRODUCTIVITY DISPERSION, PLANT SIZE, AND MARKET STRUCTURE Sasan Bakhtiari, Doctor of Philosophy, 2008 Dissertation directed by: Professor John Haltiwanger Department of Economics Ample evidence from micro data suggests that productivity at establishment level is dominated by idiosyncratic factors. The productivity differences across establishments are very large and persi...

OBJECTIVES Klebsiella pneumoniae is a gram-negative rod bacterium, a known cause of community-acquired bacterial pneumonia and is an important hospital-acquired pathogen that causes severe morbidity and mortality. The aim of this study was to identify the TEM and SHV genes in K. pneumoniae isolated from cockroaches obtained from hospitals. METHODS In this study, 250 cockroaches were collected...

Introduction: Ursolic Acid (UA) is the main compound present in apple cuticular wax as well as in the leaves. Hypertrophic effects of UA on the skeletal muscle ventured us to investigate if UA might activate satellite cells proliferation, and also generate new muscle fibers is so-called ” hyperplasia”. Methods: To confirm this hypothesis, UA administrated twice daily for 7 days to 8 weeks old m...

Introduction: Congenital hypothyroidism (CH) is one of the most common endocrine and metabolic disorders a preventable cause mental retardation across world. This disorder can be prevented if diagnosed treated before age four weeks. Objectives: study was performed to investigate incidence rate CH in infants Chaharmahal Bakhtiari province. Patients Methods: The data this were obtained by screeni...

spatial pattern of trees can possibly indicate stand history, population dynamics, and species competition. this research was investigated in the chahartagh forest reserve, ardal region, chaharmehal and bakhtiari province, central zagros forest, and southwest iranian state. in this study 53 hectare of the study area was selected and perfect inventory.  information includes the position and kind...