"> In this research an extensive literature search into the mechanism of cavitation dynamics and its consequences was conducted. A cavitation venturie rig was designed <span style="font-size: 10pt; col...

Background: Sj?gren’s syndrome is an autoimmune syndrome involving the exocrine glands specially the salivary and lacrimal glands leading to xerostomia and xerophtalmia. This paper presents a case with primary Sj?gren’s syndrome that severe dental caries were the first clinical manifestation. Case Presentation: A 42-year-old man was referred to the School of Dentistry, Tehran University of Medi...

We describe how the 2016 documentary The Man Who Discovered Capitalism can be used in classroom to provide an entry point life and economics of Joseph A. Schumpeter, whose work on innovation, entrepreneurship, creative destruction remains relevant for students today. summarize key ideas conveyed offer four criticisms: its failure capture role fin-de-siècle Vienna Schumpeter’s intellectual devel...

celiac disease can be accompanied with multiorgan involvement in addition to gastro-intestinal involvement. a 16-year-old young man - known case of celiac disease - was admitted because of exacerbation of gastrointestinal complaints. during further investigations, hypothyroidism and membranous glomerulonephritis were discovered. the patient was improved with a gluten-free diet and specific trea...

background: sj?gren’s syndrome is an autoimmune syndrome involving the exocrine glands specially the salivary and lacrimal glands leading to xerostomia and xerophtalmia. this paper presents a case with primary sj?gren’s syndrome that severe dental caries were the first clinical manifestation. case presentation: a 42-year-old man was referred to the school of dentistry, tehran university of medi...

this study deals with bioleaching of the low grade uranium ore of saghand mine in iran using a mixed culture of mesophilic bacteria (acidithiobacillus ferrooxidans, acidithiobacillus thiooxidans and leptospirillum ferrooxidans). experiments were carried out in shaking flask examining the effect of temperature, initial ferrous ion concentration, pulp density and particle size. variations of ph, ...

Objective(s): Iron is an essential element for living organisms. Iron overload can have detrimental effects on health. This study pertains to the protective role of berberine against ferrous sulfate-induced hepatic and renal functional disorders and histological damages in rats.Materials and Methods: The rats were divided into four groups (n=7): Sham, Ber (10 mg/kg/day for 14 days, by gavage), ...

the oxidation of ferrous iron (fe2+) in solution using acidithiobacillus ferrooxidans has industrial applications exclusively in the regeneration of ferric iron (fe3+) as an oxidizing agent for the removal of hydrogen sulfide from waste gases, desulfurization of coal, leaching of non-ferrous metallic sulfides and treatment of acid mine drainage. the aim of this investigation was to increase the...