When light is absorbed within the outer segment of a vertebrate photoreceptor, the conformation of the photopigment rhodopsin is altered to produce an activated photoproduct called metarhodopsin II or Rh(*). Rh(*) initiates a transduction cascade similar to that for metabotropic synaptic receptors and many hormones; the Rh(*) activates a heterotrimeric G protein, which in turn stimulates an eff...

The purpose of the present work is to show that light straight-run gasoline fraction can be used as feedstock for hydro-catalytic isomerization process, and isomerized product serve a component obtaining pure ecological commercial brand Euro-4 Euro-5. Transformation n-alkanes Zhanazhol oil’s with boiling temperature 180°C was studied. Isomerization carried out in flow unit stationary layer modi...

A SIMPLIFIED METHOD FOR ESTIMATING FREE-THYROXINE FRACTION IN SERUM Ralph R. Cavalieri, James N. Castle and Gilbert L. Searle 565 NEW PATTERNS OF ABNORMAL PULMONARY PERFUSION ASSOCIATED WITH PULMONARY EMBOLI: 1. SCINTIGRAPHIC MANIFESTATIONS S. Boyd Eaton, A. Everette James, Reginald E. Greene, Joseph H. Lyons, Majic S. Potsaid and Felix G. Fleischner 571 STUDIES ON THE METABOLISM OF 75Se-L-SELE...

The ultrasonic velocities in binary liquid mixtures of carbon tetrachloride with benzene, toluene, m-xylene, ethyl benzene and chloro benzene have been measured at entire mole fraction range at 303.15K, using ultrasonic interferometer of frequency 2 MHz. Isentropic compressibilities KS, deviations of KS from ideal mole fraction mixture law ΔKS, available volumes Va, Lennard Jones potential repu...

Four obligately photoautotrophic blue-green algae were shown to assimilate acetate. This reaction was light dependent and was greatly decreased in the absence of carbon dioxide. Acetate was incorporated mainly into the ethanol extractable (lipid) fraction of the organisms and into the protein fraction. Only four amino acids (glutamate, proline, arginine, leucine) were significantly radioactive ...

A bstract. A supernatant fraction, free of plstids, was prepared by centrifugation from Euglena gracilis and used to ascertain whether or not the inhibition of carbon dioxide fixation by oxygen, known as the Warburg effect, is entirely independent of the light-driven phase of photosyn-thesis. This fraction exhibited in the dark the main features of the Werburg effect; namely, an inverse relatio...

The properties of black carbon (BC) are described very differently in the literature, even when determined by same methodological procedure. To clarify this discrepancy, BC was investigated clay Cambisols southern Bohemia, Czech Republic, groups soils with lower and higher deposition its atmospheric fallout. determination performed according to a modified method Kuhlbusch Crutzen (1995). amount...

The macroscopic motion of liquids on a flat solid surface was manipulated reversibly by photoirradiation of a photoisomerizable monolayer covering the surface. When a liquid droplet several millimeters in diameter was placed on a substrate surface modified with a calix[4]resorcinarene derivative having photochromic azobenzene units, asymmetrical photoirradiation caused a gradient in surface fre...