The influence of the herbivorous snail (Physa sp.) on the algal periphyton community from theGamasiyab River, Kermanshah province in western Iran was examined by establishing a gradient of Physa sp.density in artificial ...

Ferulago angulata (Apiaceae), a medicinal plant of western Asia, contains essential oils that areused as a food preservative. This study examined and compared the composition of leaf oil with seed oil andof the oils from ...

The study area is a part of the Sanandaj-Sirjan metamorphic belt comprising low- to high-graderegional and contact metamorphic rocks that are intruded by various plutonic bodies. Garnet crystals areabundant in pelitic ...

Glucose 6- phosphate dehydrogenase from streptomyces aureofaciens was purified andinactivated by pyridoxal 5′-phosphate (PLP). The inactivation was a pseudo-first order and time-dependentreaction. Complete inactivation was ...

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), ...

Calcium crystals are evident in many parts of anther. There is little literature about differentiationof crystal-containing cells and crystal formation during anther development. Petunia hybrid grandifloraFlower buds ...

The genus Aegilops is one of the wheat relatives which comprise the main part of its gene pool.The identification of the Aegilops species is difficult due to their vast morphological similarities and geneflow among different ...

– The normal and lateral line cycloid scales of a cyprinid fish Capoeta damascina (Valenciennes inCuvier and Valenciennes, 1842) have been subjected to the scanning electron microscopy technique in orderto study their ...

A simple, rapid and sensitive spectrophotometric method has been proposed for the determinationof Vanadium (IV). The method is based on the catalytic effect of V (IV) on the oxidation of Alkali Blue bypotassium bromate at ...

The proline-rich β-casein was digested in vitro with trypsin, and the oligopeptides producedwere then isolated by RP-HPLC and subsequently identified by amino acid analysis and ion massspectrometry. The peptide fractions ...

For this study, Asmari (Oligo-Miocene) and Bangestan (Cretaceous) reservoir oils from theMarun oilfield were studied geochemically. Gas chromatograms and stable isotopes of carbon and sulfur indifferent oil fractions were ...

It is well known that several plant extracts have a lactogenic effect. This response may be inducedthrough the stimulation of prolactin release from lactotrope cells. A partial purification of the activecompound indicated ...

Electron transport system (ETS) activity was found to be related to the initial inoculum size,culturability and viability of E. coli. In this experiment, ETS activity of Flexibacter chinensis was measuredby INT-method under ...