Internal sequestration

A simj ar suggestion has been made that internal sequestration of Ca by mitochondria occurs o -J-y at high internal Ca concentrations, based on their low Ca content in studies using x-ray diffraction analysis of sections rapidly ozen to minimize trgijislocations (52,53) and on studies of the Ca dependence for Ca transport (54,55). In humgiji myometrium, however, isolated mitochondria could transport Ca from concentrations less than 1 yM (56). 

Internal sequestration by extraradical hyphae (Berreck and Haselwandter,... 

There are a number of different mechanisms by which microorganisms resist metal toxicity (Table 11.1). Five mechanisms that microbes use to mediate metal toxicity have been proposed and they include (1) formation of a permeability barrier,21-24 (2) active transport,25-29 (3) sequestration,30-32 (4) enzymatic detoxification,33 34 and (5) reduction in sensitivity.35,36 Microbes may use one or more of these mechanisms to exclude nonessential metals and regulate internal concentrations of essential metals. 

R.W. Klusman Comparison of Surface and Near-Surface Geochemical Methods for Detection of Gas Microseepage from Carbon Dioxide Sequestration. International Journal of Greenhouse Gas Control. 2011. 5,1369-1392. 

Stevens S.H., Kuuskara V.A., et al. Sequestration of C02 in depleted oil and gas fields global capacity, costs and barriers. In Proceedings of Fifth International Con-... 

OkwenR.T., TstewartM.T., et al. Analytical solution for estimating storage efficiency of geologic sequestration of C02. 2010 International Journal of Greenhouse Gas Control 4(1) 102-107. 

PagnierH.J.M., et al. C02-sequestration in the Netherlands inventory of the potential for the combination of subsurface carbon dioxide disposal with enhanced coalbed methane production. In Proceedings of Fifth International Conference on Greenhouse Gas Control Technologies, CSIRO Publishing, Collingwood, Australia. 2001 555-560. 

Hovorka S.D. and Knox P.R. Frio brine sequestration pilot in the Texas gulf coast. In Proceedings of Sixth International Conference on Greenhouse Gas Control Technologies, Kyoto, Japan. 2003 583-587. 

Today s rapidly increasing activities on hydrogen focus mostly on vehicle applications and less on stationary applications. For fuel cells, stationary applications are also relevant, but natural gas will be the dominant fuel here. The dominance of the transport sector is also reflected in the hydrogen roadmaps developed, among others, in the EU, the USA, Japan, or at an international level. Whereas in the beginning, onsite or decentralised production options based on fossil fuels or electricity are seen as the major option for hydrogen production, later on central production options will dominate the market. Here, several options could play a role, from coal, with carbon capture and sequestration, through natural gas and renewables (wind, biomass) to nuclear. A C02-free or lean vision can be identified in every roadmap. The cost... 

Faussner, A., Proud, D., Towns, M., and Bathon, J. M. (1998) Influence of the cytosolic carboxyl termini of human B1 and B2 kinin receptors on receptor sequestration, ligand internalization, and signal transduction. J. Biol. Chem. 273, 2617-2623. 

Abstract Alkaloids are a special group of secondary compounds and are part of an organism s adaptation mechanism to its living environment. They are not toxic when stored, but become toxic as a result of cell pH change. The defensive function of alkaloids is only secondary, and connected to internal immune and regulation processes. Animal responses to alkaloids are very diverse. Some animals can tolerate alkaloids relatively well, while others are harmed or even poisoned by them. Animal behaviour in relation to alkaloids depends on evolutionary and co-evolutionary factors. Sequestration of alkaloids is connected with these processes. Alkaloids are a part of plant-derived nutrition. A selective toxicity of these compounds in vertebrates is clearly observed. Vertebrates have the capacity to recognize alkaloids. 

Balancing internal equilibrium constants sequestration of unstable intermediates12... 

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