CRACs

CATALYSTS - REGENERATION - FLUID CATALYTIC CRAC KING UNITS] (Vol 5) [CONTROLLED RELEASE TECHNOLOGY - PHARMACEUTICAL] (Vol 7)... 

The materials leaving containment are source terms for offsite convective-diffusion transport calculations. Codes. such as CRAC-2 calculate atmospheric diffusion with different probabilities of meteorological conditions to estimate the radiological health effects and costs. 

According to the free-radical theory of molecular transformation, thermal crac "". ... 

CRAC determined the consequences of a reactor accident using meteorological data for six reactor sites. Each site was taken to represent an entire region, and all of the 68 sites of the first 100 reactors were assigned to one of these six regions. Wind. speed and stability for each of the six sites was assumed to be representative of the entire region out to a distance of 500 miles. Wind direction because with so many sites, the wind direction was assumed random, but the population dish ibution for all 68 sites was used. 

Turnbull, A., (ed-)> Corrosion Chemistry within Pits, Crevices and Crac , HMSO ... 

Calcium channels in the plasma membrane activated after receptor-mediated calcium release from intracellular stores. Diese channels are present in many cellular types and play pivotal roles in a multitude of cell functions. It was recently shown that Orai proteins are the pore-forming subunit of CRAC channels. They are activated by STIM proteins that sense the Ca2+ content of the endoplasmic reticulum. 

The NHR contains also the conserved Calcineurin docking site, PxlxIT, required for the physical interaction of NEAT and Calcineurin. Dephosphorylation of at least 13 serines residues in the NHR induces a conformational change that exposes the nuclear localization sequences (NLS), allowing the nuclear translocation of NEAT. Rephosphorylation of these residues unmasks the nuclear export sequences that direct transport back to the cytoplasm. Engagement of receptors such as the antigen receptors in T and B cells is coupled to phospholipase C activation and subsequent production of inositol triphosphate. Increased levels of inositol triphosphate lead to the initial release of intracellular stores of calcium. This early increase of calcium induces opening of the plasma membrane calcium-released-activated-calcium (CRAC) channels,... 

Store-operated Ca2+ channels (593), of which CRACs (Ca2+-release activated channels) are the best characterized (594),... 

Because the amplitude of a two-center donor orbital crAc is generally maximal near the bond midpoint (rather than at the ends, where only one of the two hybrids contributes), the preferred ubc hb geometry is generally T-shaped,... 

CRAC is the basic client organization within CMA. It consists of 15 company representatives, one-third of which are replaced each year by new representatives. This standing technical committee is served by CMA staff, outside consultants and outside counsel, as appropriate. While the various sections of the Toxic Substances Control Act are interrelated and interdependent this se c t i o n - b y - s e c t i o n task group structure has so far proved extremely effective in dealing with the various proposals which EPA has issued. Our key organizational theme, therefore, has been to utilize a multidisciplinary team concept to... 

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