background: placenta previa (pp) is an obstetric complication that can affect maternal and fetal morbidity and mortality. its prevalence is rising due to cesarean sections. there is no quantitative data of placenta in pp. in this study, quantitative parameters of placenta in cases with pp in comparison with normally implanted controls were investigated. methods: in this quasi experimental study...

objective: the present study aimed to determine whether castration altered osmotically stimulated vasopressin (vp) release and urinary volume and what is the role of endocrine-stress axis in this process. materials and methods: totally 108 mice were studied in two main groups of castrated (n=78) and control (n=30). each group was extracted by acute cold stress (4◦c for 2h/day), restraint stress...

introduction: the use of stereological methods in evaluation of volume changes in vital organs such as kidney is very important. in this study, the volume of glomeruli in glycerol-induced acute renal failure in rats was determined. methods: 48 sprague-dawley male rats were divided into 2 groups (1control, 1experiment). experimental group was injected 10ml/kg of 50% glycerol intramuscularly, whi...

In this study, the effects of nitrogen addition on the production of ultrafine/nano grained AISI 201L stainless steel by advanced thermo-mechanical process were investigated. Cast samples were first homogenized at 1200 °C for 4 h, hot-rolled at 1100 °C and finally, solution-annealed at 1150 °C for 2.5 h. Unidirectional and cross multipass cold rolling at 25 °C was carried out to 90% reduction i...

Background:This study aimed to investigate changes in calcitonin cells (C cells) and parathyroid glands (PTG) induced by cypermethrin exposure in rats and evaluate the protective effects of jamun seeds (Syzygium cumini; JSE) and orange peels (Citrus sinensis; OPE) extracts. Methods:Wistar rats (N=120) were treated in groups of 20 each as: Group A: Controls; Group B: cypermethrin (CY); Group C:...

background prolonged intensive care unit (icu) and hospital stay after cardiac surgery is vitally important and is influenced by both intraoperative and postoperative factors. objectives this randomized clinical trial study was designed to assess whether vitamin c supplementation could reduce the length of icu and hospital stay in post-cardiac surgery patients. patients and methods two hundred ...

In this paper we prove: if a bounded domain with $C^2$ boundary covers manifold which has finite volume respect to either the Bergman volume, Kähler–Einstein or Kobayashi–Eisenman then is biholomorphic unit ball. This answers question attributed Yau. Further, when convex can assume that only $C^{1,\epsilon}$ regularity.

macrocyclops albidus and cyclops vicinus are the two important copepods living in hazar lake.for this study, 50 females for each species were collected. samples were taken between december 1999 andmarch 2000. length (pl), width (pw), and height (ph) of prosome and length (ul) and width (uw) ofurosome were measured in each female and subsequently, the following ratios pl/pw, pl/ph, pw/ph,pl/ul a...