One of the industrial areas in the south of Iran is Bandar Imam Petrochemical Economic Zone which has a lot of petrochemical complex, Farabi Petrochemical complex is one of those places. Coagulation/flocculation could be a typical methodology in water and wastewater treatment that a number of chemicals are added to assist the coagulation/flocculation and causes to the sedimentation. In this pap...

Supernatants of rat skeletal muscle homogenates were fractionated by differential centrifugation and by zonal centrifugation in sucrose density gradients. Cytochrome oxidase was employed as an enzymatic marker for locating mitochondria. The subcellular fractions were also assayed for their ability to prevent the ATP-induced contraction of myofibrils. Both the mitochondrial and microsomal fracti...

The disc electrophoresis advanced by Ornstein and Davis1 is the most useful method among various zone electrophoreses for separating proteins in sera. Using this method, the present author has observed and published in the pre vious paper2 the change of protein fraction patterns of human serum in several diseases and other biological materials. A marked increase of amount of serum mucoid in inf...

The spatial and temporal distribution of suspended solids, turbidity, temperature, salinity, chlorophyll a and total phosphorus were estimated and mapped with various degrees of success in Matla Estuary using satellite (Landsat Thematic Mapper) imagery. All the indicators exhibit a similar spatial pattern within the estuary. High values are found at both the saltwater and freshwater ends of the...

Lactate dehydrogenase (LDH) X has been isolated in crystalline form from mouse testes. Homogeneity of the protein preparation was established by disc gel electrophoresis, analytical ultracentrifugation, and immunochemical analyses. LDH-X is clearly distinct in amino acid composition from LDH-1 and LDH-5 with respect to numbers of residues of leucine, glycine, threonine, and methionine. When 6 t...

Highly purified, concentrated foot-and-mouth disease virus, type A, was homogeneous and monodisperse by carrier-free zone electrophoresis in a glucose density gradient. Virus mobilities in veronal-acetate buffer, pH 8.6 and ionic strength 0.1, were identical whether determined by infectivity or optical methods. Low passage calf-kidney virus had a significantly higher mobility, 3.28 x 10 ~ 5 cm2...

A chromatin associated protein kinase was used to add 3 moles of phosphate to seryl side chains of 1 mole of histone H1. The DNA binding properties of this in vitro phosphorylated H1 were compared with those of unmodified H1. Considerably more radioactive superhelical DNA was retained on nitrocellulose filters at 20mM-40mM NaCl by phosphorylated H1 than by unmodified H1. However, zone velocity ...

-Local characteristics in the upwelling of Galicia (NW Iberian Peninsula) are studied in terms of dissolved silicate patterns in the seawater column and opal distribution in the sediments. Freshwater input, upwelling, remineralization and sedimentation are considered. The freshwater silicate input is not important during the upwelling season. Upwelling is the main process controlling silicate b...

The deoxyribonucleic acid (DNA) of Escherichia coli B is converted by colicin E2 to products soluble in cold trichloroacetic acid; we showed previously that this DNA degradation (hereafter termed solubilization) is subject to inhibition by infection with phage T4 and that at least two modes of inhibition can be differentiated on the basis of their sensitivity to chloramphenicol (CM). This repor...