Which compound in each pair is more basic: (a) (CH3)2NH and NH3; (b) CH3CH2NH2 and ClCH2CH2NH2? What is an element and what is a compound? Give examples of each. What is the correct formula for the compound containing calcium ions and nitrogen ions? a. Ca3N2 b. Ca2N3 c. Ca...
Metallothioneinsare other proteins having a role in metal detoxification due to their strong affinity for metallic ions such as Cd, Cu, Zn and Ag (Langston et al., 1998). Also, the antioxidant role played by metallothionein-like proteins (MTLPs) has been described for several animal models (...
Which proton in A is most acidic? What is the prevalent form of alanine in an acidic solution? What two products are formed when acids reacts with bases? For C_5H_{10}O write the relative acidity or basis. Which of the following would you expect to be the most acidic?
The genome of phage η is 42,724 bp in length with a mol% GC of 49.9. This value is significantly less than that of the host, S. marcescens at 58 mol% GC, which is somewhat unusual for temperate phages where the overall base composition of the host and phage are usually remarkably ...
1. A composition comprising calcium phosphate in granular form having an X-ray diffraction pattern characteristic of hydroxyapatite in which up to 10% of the phosphate anions of the crystal lattice are substituted with carbonate anions, and having a particle size such that at least 90% of the ...
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The compounds of the invention are potent inhibitors of Na+/Ca2+ exchange mechanism. BACKGROUND OF THE INVENTION Na+/Ca2+ exchange mechanism is one of the ion transport mechanisms that regulate the concentration of sodium and calcium ions in the cells. Compounds which selectively inhibit Na+/Ca2...
Photographic elements, processes for forming images in photographic elements and new compounds are disclosed. Generally, the invention relates to immobile compounds which can be used to provide positive images from negative recording-developing photographic materials such as negative silver halide emulsions....
Among the nutrient inorganic salts which can be incorporated in the culture media are the customary soluble salts capable of yielding zinc, sodium, magnesium, calcium, ammonium, chloride, carbonate, sulfate, nitrate and like ions. Essential trace elements necessary for the growth and development of...
other, electric current is supplied between both the electrodes 2, 3 from a power source 4 to attract Ca ions and Mg ions as dissolved components in the seawater 1 to the cathode 3 and insoluble CaCO3 and Mg(OH)2 are deposited as electrodeposited matter 5 on the surface of the cathode ...