Titrimetric estimation of calcium with disodium ethylene diamine tetra-acetate (E.D.T.A., sodium edetate), as performed on serum (Baron and Bell, 1957), cannot be applied directly to most other biological specimens because of their high concentration of phosphate. A high ratio of phosphate to calcium in the material titrated causes a drawnout and inaccurate endpoint. A rapid procedure for calci...

nical ability for plant transformation increases daily, the practicality of using transgenic plants in complex The halobacteria are the only organisms that are tolerbreeding programmes seems rarely to be given enough ant of salinity at the molecular level. All other bacteria, thought. If intervention at the molecular level is to lead all fungi, all plants, and all animals avoid the need for to ...

Respiration in intertidal salt marshes generates dissolved inorganic carbon (DIC) that is exported to the coastal ocean by tidal exchange with marsh platform. Understanding link between physical drivers of water and chemical flux a key constraining wetland contributions regional budgets. The spatial temporal (seasonal, annual) variability pore DIC export was assessed from microtidal (Sage Lot P...

The effect of relative humidity (RH) on aerosol formation by the semi-volatile oxidation products of the a-pinene/O3 system has been comprehensively studied. Experiments were performed in the presence of ammonium sulfate (aqueous, dry), ammonium bisulfate seed (aqueous, dry), and aqueous calcium chloride seed aerosols to ascertain their effect on the partitioning of the oxidation products. The ...

Shoots of the halophyte Salicornia bigelovii are larger and more succulent when grown in highly saline environments. This increased growth and water uptake has been correlated with a large and specific cellular accumulation of sodium. In glycophytes, sensitivity to salt has been associated with an inability to remove sodium ions effectively from the cytoplasm in order to protect salt-sensitive ...

Forward osmosis (FO) has recently drawn attention as a promising membrane based method for seawater and brackish water desalination. In this study, we focus on the use of calciun chloride (CaCl2) and potassium bicarbonate (KHCO3) as inorganic salt draw solution candidates due to their appropriate performance in water flux and reverse salt diffusion as well as reasonable cost. The experiments we...

The loss of inorganic and organic material export and habitat produced by freshwater tidal wetlands is hypothesized to be an important contributing factor to the long-term decline in fishery production in San Francisco Estuary. However, due to the absence of freshwater tidal wetlands in the estuary, there is little information on the export of inorganic and organic carbon, nutrient or phytoplan...

The possibility of detection methane using fiber-optical sensor with ZnO-SnO2-Fe2O3 photocatalyst was demonstrated. Photocatalytic composite element prepared by non-isothermal polymer-salt method from solutions inorganic metal salts and polyvinylpyrrolidone. Optical is carrying out Bragg diffraction grating at the temperature variations during photocatalytic oxidation.