background spirulina is one of the most profitable known microalgae in the world, which is used as food and superfood. in the other hand, spirulina is a useful source of healthy components. it seems that the spirulina is transformable so that the introduction of a selectable marker is needed. objectives the purpose of this study was to determine a suitable selection marker for spirulina platens...

the chronic exposure to elf-emf (extremely-low frequency electromagnetic field) has been shown as an effective factor at biological systems. in order to determine the possible effects of whole-body exposure to emf on plasma levels of testosterones and corticosterone, weight gain and testicular gene expression of gstt1 of male rats, the present study was performed by the following procedure: thi...

fungi produce a wide range of secondary metabolites such as antibiotics, toxins, alkaloids, fatty acids, ketones and alcohols during active cell growth. the present study was aimed to identify secondary metabolites from some penicillium species, using gc-ms. many important compounds such as 3-oxoquinuclidine in penicillium jenseii, formamidine in penicillium pusillum, orcinol and 1,3,8-p-mentha...

abstract distal pancreatectomy has been a standard technique for pancreatic body and tail lesions for years ago. recently, it is being performed laparoscopically in a perfect manner. there are two common methods for this procedure. one is distal pancreatectomy with splenectomy and the other is distal pancreatectomy with spleen preservation. in patients with splenic vessels involvement, it is no...

background due to a recent alarming increase in the number of hiv-hcv co-infected patients in romania. objectives a cross sectional study was conducted to assess the baseline predictors of liver disease evolution. patients and methods 83 hiv-hcv co-infected patients, untreated for hcv infection, were evaluated for viral replication, liver fibrosis (estimated by a noninvasive marker - fib4), and...

background: in the recent years nanostructured materials have been the focus of researches due to their wide-spread possibilities to provide new shapes and structures for some materials. microemulsions can provide uniform nano-sized droplets for templating. microemulsions are isotropic, thermodynamically-stable systems of oil, water and surfactant with a 20-200 nm droplet size. they can be prep...

in this research, the effects of the addition of powdered activated carbon (pac) into the aeration zone of an activated-sludge (as) system for treating tehran oil refinery effluent, was investigated during more than 12 months in a pact pilot-scale model. besides the evaluation of organics removal efficiency and determination of basic design factors kinetic coefficients, a series of experiments ...