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	Sedimentation - Wikipedia, the free encyclopedia
		Sedimentation describes the motion of particles in solutions or suspensions in response to an external force such as gravity, centrifugal force or electric force.
		For electrophoresis, the sedimentation coefficient corresponds to the particle charge divided by its drag (the electrophoretic mobility).
		Similarly, for dielectrophoresis, the sedimentation coefficient equals the particle's electric dipole moment divided by its drag.
	en.wikipedia.org /wiki/Sedimentation (374 words)

	Sedimentation Velocity
		Sedimentation velocity is an analytical ultracentrifugation (AUC) method that measures the rate at which molecules move in response to centrifugal force generated in a centrifuge.
		The minimum width of the sedimentation boundary is related to the diffusion coefficient of the molecule; the presence of multiple species with similar sedimentation coefficients will cause the boundary to be broader than expected on the basis of diffusion alone.
		A sedimentation coefficient of 6.5 S is actually rather low for a 150 kDa species, which is consistent with high hydrodynamic friction from its highly asymmetric, non-globular 'Y' shape.
	www.ap-lab.com /sedimentation_velocity.htm (1457 words)

	DS-820: Determination of Molecular Weights by Sedimentation Equilibrium
		Sedimentation equilibrium is especially preferred over sedimentation and diffusion in studies of polydisperse solutes, or for solutions containing high concentrations of salts or denaturing agents.
		Conventional sedimentation equilibrium experiments are defined as those experiments that utilize a fluid column length of 3 to 5 mm in the centrifuge cell, with rotor speeds sufficiently low so that solute concentration at the meniscus is not zero, and with the entire contents of the cell at sedimentation equilibrium.
		During the initial period, bulk solute is transported by sedimentation toward the bottom of the cell, so that the quantity of material in the upper and lower halves of the cell grossly approximates that required for the final equilibrium condition.
	www.beckman.com /resourcecenter/labresources/sia/ds820.asp (2812 words)

	Grain sedimentation and pipette analysis (Site not responding. Last check: 2007-08-07)
		Sedimentation analysis is the only sizing technique that utilizes settling velocity; and, consequently, interpretations concerning sedimentological history based on it tend to be more valid than interpretations based on physical size alone.
		In order for a sedimentation analysis of the size distribution of a sample to be valid, the different grains comprising the sample must be physical entities; that is, they must not be attached to one another.
		The sedimentation diameter is analogous to the "norm" of petrology; that is, it is somewhat artificial, but is worthwhile because of the interpretations that can be made from it.
	hjs.geol.uib.no /hovedlab/analysis_sedimentation_eng_printer.html (6449 words)

	Erythrocyte sedimentation rate - Wikipedia, the free encyclopedia
		The erythrocyte sedimentation rate (ESR), also called a sedimentation rate, sed rate or Biernacki Reaction, is a non-specific measure of inflammation that is commonly used as a medical screening test.
		To perform the test, anticoagulated blood is placed in an upright tube and the rate at which the red blood cells fall is measured and reported in mm/h.
		The erythrocyte sedimentation rate (ESR) can also be used to assess response to therapy in certain inflammatory diseases such as temporal arteritis, polymyalgia rheumatica, rheumatoid arthritis.
	en.wikipedia.org /wiki/Sedimentation_rate (317 words)

	Sedimentation Pollution Control Act of 1973 (SPCA)
		Sedimentation occurs from the erosion or depositing of soil and other materials into the waters, principally from construction sites and road maintenance.
		Control of erosion and sedimentation is deemed vital to the public interest and necessary to the public health and welfare, and expenditures of funds for erosion and sedimentation control programs shall be deemed for a public purpose.
		In recognition of the desirability of early coordination of sedimentation control planning, it is the intention of the General Assembly that preconstruction conferences be held among the affected parties, subject to the availability of staff.(1973, c.
	www.dlr.enr.state.nc.us /pages/sedimentpollutioncontrol.html (5888 words)

	Sedimentation Introduction
		Corals differ greatly in their ability to resist sedimentation, with most species being highly intolerant of even small amounts while a minority are able to tolerate extremely muddy conditions, and a few are even able to live directly in muddy bottoms.
		The sediment tolerant corals are able to push sediment off their surface through a variety of mechanisms, but these all require expenditure of metabolic energy and when sedimentation is excessive they eventually reach the point where they can no longer spare the energy to keep themselves clean, and the affected tissue dies back.
		Quantitative assessment of sedimentation is always difficult because sediment concentrations and settling rates are extremely variable, depending on the detailed history of rain, wind, and waves at each site.
	globalcoral.org /SEDIMENTATION.html (699 words)

	ARS \| Publication request: Sedimentation of Harbors and Counter-Measures in the Greek and Roman Era
		Impacts from upland erosion and coastline sedimentation during the Greek and Roman era are illustrated for the harbors of Ephesos on the Aegean Sea and Seleukeia Piereia on the eastern Mediterranean coast.
		Technical Abstract: Harbor protection from upland erosion and coastline sedimentation during the Greek and Roman era are illustrated for the harbors of Ephesos on the Aegean Sea and Seleukeia Piereia on the eastern Mediterranean coast.
		Sedimentation and delta propagation forced the harbor of Ephesos to be relocated and its access protected from the effects of coastline sedimentation.
	ars.usda.gov /research/publications/Publications.htm?seq_no_115=160836 (407 words)

	Sedimentation Rate — Complete medical explanation regarding this common blood test on MedicineNet.com
		A sedimentation rate is common blood test that is used to detect and monitor inflammation in the body.
		The sedimentation rate is also called the erythrocyte sedimentation rate because it is a measure of the red blood cells (erythrocytes) sedimenting in a tube over a given period of time.
		A sedimentation rate is performed by measuring the rate at which red blood cells (RBCs) settle in a test tube.
	www.medicinenet.com /sedimentation_rate/article.htm (285 words)

	Erosion and Sedimentation Control in North Carolina
		Sedimentation destroys fish-spawning beds, reduces the useful storage volume of reservoirs, clogs streams, and increases filtration costs for municipal water supplies.
		Off-site sedimentation must be prevented, and a ground cover sufficient to prevent erosion must be provided within 30 working days or 120 calendar days after activity is completed, whichever is shorter.
		Effective erosion and sedimentation control includes: (1) minimizing erosion by protecting the soil surface from the erosive forces of wind, rain, and runoff; and (2) preventing eroded soil from moving from the site.
	www.p2pays.org /ref/01/00055.htm (1464 words)

	Sedimentation Rate
		The sedimentation rate (sed rate) blood test measures how quickly red blood cells (erythrocytes) settle in a test tube in one hour.
		When inflammation is present in the body, certain proteins cause red blood cells to stick together and fall more quickly than normal to the bottom of the tube.
		A high sedimentation rate (sed rate) may indicate inflammation caused by an infection.
	www.webmd.com /hw/lab_tests/hw43353.asp (830 words)

	What are Playa Lakes? (Site not responding. Last check: 2007-08-07)
		They are a precious resource for wildlife, providing oases of water and forage in an otherwise arid and desert-like landscape.
		The majority of playa lakes are located in or adjacent to farms, grazing lands and feedlots, which can create a number of impacts on playas including: pesticide and fertilizer runoff, contaminants from feedlot runoff, overgrazing and sedimentation.
		Sedimentation is the primary threat to playa lakes.
	www.pljv.org /whatare.html (607 words)

	National Sedimentation Laboratory : Home (Site not responding. Last check: 2007-08-07)
		The Staff of the National Sedimentation Laboratory (NSL) is very pleased that you have taken the opportunity to pay a visit to the NSL and to become familiarized with our research program, personnel, and research environment.
		We hope that this visit will be informative, instructive, and helpful in furthering mutual interest in problems of soil erosion, sedimentation, and soil and sediment related water quality and ecology research.
		The National Sedimentation Laboratory is comprised of the *Watershed Physical Processes Research Unit and the Water Quality and Ecology Research.
	ars.usda.gov /main/site_main.htm?modecode=64-08-05-00 (241 words)

	Sedimentation of Wetlands (Site not responding. Last check: 2007-08-07)
		Thus, the value placed on wetlands to trap sediments is in conflict with maximizing the effective topographic life of wetlands.
		Herein, we provide an overview of sedimentation, identify associated impacts on wetlands, and suggest remedial management strategies.
		We also highlight the need to evaluate the impact of agricultural practices on wetland functions from an interdisciplinary approach to facilitate development of best management practices that benefit both wetland and agricultural interests.
	www.npwrc.usgs.gov /resource/1998/sediment/sediment.htm (269 words)

	Ocean 540: Overview--Marine Sedimentation (Site not responding. Last check: 2007-08-07)
		Translating this to a vertical rate of accumulation requires some assumption as to the porosity (volume of fluid filled pore space).
		As the plate subsides, the dissolution of carbonate increases such that this material is no longer preserved and only residual clay material accumulates (at a much lower sedimentation rate).
		As the site passes beneath the equator, the rate of supply of biogenic silica exceeds the rate of dissolution and it accumulates.
	bell.mma.edu /~jbouch/UWMarineGeology/McDuffSediments.html (1171 words)

	Sedimentation of Prairie Pothole Wetlands (Site not responding. Last check: 2007-08-07)
		The objectives of maintaining productive lands for agriculture and wildlife are not mutually exclusive; both benefit under sound resource management.
		We examined the influence of sedimentation on wildlife values in wetlands.
		Sedimentation of prairie pothole wetlands: the need for integrated research by agricultural and wildlife interests.
	www.npwrc.usgs.gov /resource/1998/pprwtlnd/pprwtlnd.htm (339 words)

	Sedimentation
		One such "picked-up" method was boundary sedimentation which was begotten in geology to study the sizes of sediments.
		In the top view picture above, the cuvette is filled with a mix of two sedimentable components in water.
		What you see on the UV photograph are the top boundaries of each component as each is making its way to the bottom of the whirling cuvette under forces of greater than 100,000xG.
	www.science-projects.com /Sediment-Bndry.htm (947 words)

	Sedimentation Control Commission expresses disappointment with agricultural sedimentation strategy (Site not responding. Last check: 2007-08-07)
		The strategy was developed by NCASWCD in response to a recommendation from a workgroup on agricultural sedimentation set up to develop a Plan of Action to strengthen the state’s Erosion and Sedimentation Control Program.
		Identify where agricultural sedimentation and erosion is being effectively managed by agricultural producers.
		Reckhow said that verifying causes of sedimentation in streams cannot be accomplished without water quality monitoring and that goals should be modified to be consistent with the proposed efforts.
	www2.ncsu.edu /ncsu/CIL/WRRI/news/jf00scc.html (718 words)

	Table of Contents -- PROCEEDINGS INTERAGENCY SEDIMENTATION CONFERENCE
		This conference was sponsored by the 21-member Subcommittee on Sedimentation of the Interagency Advisory Committee on Water Data.
		The first four meetings were conferences involving federal agencies only: papers and discussions were given only by the staff of the agencies on the Subcommittee and by individuals engaged in cooperative sedimentation work with the agencies.
		Every 5 years, the participating agencies publish current reservoir sedimentation data in a "Summary of Reservoir Deposition surveys Made in the United States." The data are now included in a relational data base developed by the Natural Resources Conservation Service (See the Lyle Steffen paper on RESIS).
	water.usgs.gov /wicp/proceedings.html (1516 words)

	Erosion and Sedimentation Control in North Carolina AG 473-20
		Erosion and Sedimentation Control in North Carolina AG 473-20
		Specific questions regarding the interpretation of this law should be addressed to your regional office of the Division of Land Resources of the North Carolina Department of Environment, Health, and Natural Resources (DEHNR).
		Administered by the Division of Soil and Water Conservation, DEHNR, the objective of this program is to reduce the impacts of agricultural nonpoint source pollution.
	www.bae.ncsu.edu /programs/extension/publicat/wqwm/130 (1476 words)

	Sedimentation Rate - Page 1 - HeartCenterOnline:
		The sedimentation rate (sed rate) is a type of
		It is a screening test and not used to diagnose any diseases or conditions.
		Rather, the sed rate, also called the erythrocyte sedimentation rate (ESR), can be one of the earliest indicators that something is wrong.
	heart.healthcentersonline.com /bloodtest/erythrocytesedrate.cfm (280 words)

	Lake Sedimentation Project Home Page (Site not responding. Last check: 2007-08-07)
		The purpose of the Lake Sedimentation Project is to develop geophysical, analytical, and modeling techniques to assess reservoir sedimentation and water yield.
		Project researchers are using advanced new technologies to build and validate methods and models that will enable reservoir managers to better assess sedimentation in lakes and reservoirs.
		Components of the project include watershed hydrology upstream from the reservoirs, the development of field geophysical techniques, physical monitoring, and development of simulation models.
	www3.baylor.edu /Geology/lake/lake.html (207 words)

	Lymphoma Information Network - Testing: Erythrocyte Sedimentation Rate (ESR)
		Additional tests would have to be performed to get an accurate diagnosis.
		Paper: Clinical Utility of the Erythrocyte Sedimentation Rate Malcolm L. BrigdenN, M.D., American Family Physician, October 1999
		Paper: Erythrocyte Sedimentation Rate, A Textbook of Natural Medicine, 1992 (PDF)
	www.lymphomainfo.net /tests/esr.html (664 words)

	Sedimentation Announcement
		BACKGROUND: Federal Interagency Sedimentation Conferences (FISC) began in 1947, and the Sixth FISC was held in 1996.
		As a continuation of these highly successful conferences, the Seventh FISC will provide Federal and non-Federal scientists and managers from various disciplines the opportunity to discuss recent accomplishments and progress on research and technology developments in the physical, chemical, and biological aspects of sedimentation.
		FIELD TRIPS and SHORT COURSES: Several field trips and short courses are planned for before and after the conference.
	water.usgs.gov /wicp/Sedimentation_ann.html (239 words)

	Soil Erosion and Sedimentation Control (Site not responding. Last check: 2007-08-07)
		Browsers that can not handle javascript will not be able to access some features of this site.
		Soil Erosion and Sedimentation Control Program was implemented to regulate the pollution of Michigan waters by improper construction site management practices.
		Special provisions for all development sites where there will be a disruption in the site land cover is required.
	www.michigan.gov /deq/0,1607,7-135-3311_4113---,00.html (81 words)

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