Results 261 to 270 of about 519,930 (304)
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Chloride Pumps in Biological Membranes
1992(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Gerencser, George A, Zelezna, Blanka
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2007
Book's abstract: The oceans are vitally important to an understanding of how the Earth works as an integrated system because its chemical composition records transfer of elements through the Earth’s geochemical reservoirs as well as defining how physical, biological and chemical processes combine to influence issues as diverse as climate change and the
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Book's abstract: The oceans are vitally important to an understanding of how the Earth works as an integrated system because its chemical composition records transfer of elements through the Earth’s geochemical reservoirs as well as defining how physical, biological and chemical processes combine to influence issues as diverse as climate change and the
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The Biological Pump in the Past
2014Abstract The ocean's ‘biological pump’ refers to the coupled biological, chemical, and physical processes that work to concentrate carbon and other biologically active elements in the voluminous ocean interior, sequestering them from the surface ocean and the atmosphere.
M.P. Hain, D.M. Sigman, G.H. Haug
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Biological Pump in Northwestern North Pacific
Journal of Oceanography, 2003The northwestern North Pacific is considered to be one of the most productive areas in the global ocean. Although the marginal zones along the Japanese and Kuril islands, Kamchatka Peninsula, and Aleutian Islands are certainly productive, recent studies do not always show high primary production values in the western subarctic gyre (WSG).
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Biological Considerations of Pumped Storage Development
Transactions of the American Fisheries Society, 1976The decision to build pumped storage projects must be made with the knowledge that there will be changes in the environment. Many of the biological considerations of pumped storage are quite similar to those of the more conventional types of reservoir development and operations. There are special considerations which deserve the attention of workers in
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Sacrificial capillary pumps to engineer multiscalar biological forms
NatureNatural tissues are composed of diverse cells and extracellular materials whose arrangements across several length scales-from subcellular lengths1 (micrometre) to the organ scale2 (centimetre)-regulate biological functions. Tissue-fabrication methods have progressed to large constructs, for example, through stereolithography3 and nozzle-based ...
Subramanian Sundaram +9 more
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The Biological Pump in Island-Induced Eddies
1992Eddies are important not only because they may store and transport large amounts of energy or alter the mesoscale circulation of an area, but because they may accelerate the vertical transport of carbon through the water column.
J. Arístegui +4 more
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Electro-chemical modeling challenges of biological ion pumps
Electrical Performance of Electronic Packaging IWCE-04, 2004There are two major classes of proteins that control the movement of ions across biological membranes: channels and transporters. Ion channels allow the passive movement of ions down their electrochemical gradients whereas transporters power uphill movements. Two major questions have challenged channel biophysicist for nearly a half-century: permeation
null Rakowski, null Kaya
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Pressure versus flow in biological pumps.
Symposia of the Society for Experimental Biology, 1996The pumps with which organisms move fluids span nearly a ten-million-fold pressure range. As in human technology, positive displacement pumps (osmotic, valve-and-chamber, peristaltic, etc.) are used for high-pressure applications and fluid dynamic pumps (using hydrofoils, cilia, aspirators, etc.) for low pressures.
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Microbial Processes and the Biological Carbon Pump
1993Since the content of carbon in the worlds oceans is about 60 times that of the atmosphere, and since there is a large exchange of carbon dioxide between the oceanic reservoir and the atmosphere, an understanding of the mechanisms regulating storage of carbon in the oceans interior is central to the discussion of the greenhouse effect.
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