Results 261 to 270 of about 512,638 (310)

Optimization of total RNA isolation from human urinary sediment

Clinica Chimica Acta, 2016
Extracting RNA from human urinary sediment is notoriously challenging because of cell paucity and hostile environment and column-based commercial kits using silica technology are commonly used. Nonetheless, in our experience, this methodology yields low amounts of total RNA and has low rates of success.
Maria Beatriz, Monteiro, Daniele Pereira, Santos-Bezerra, Karina, Thieme, Marisa, Passarelli, Ubiratan Fabres, Machado, Chin Jia, Lin, Maria Lúcia, Corrêa-Giannella   +6 more
openaire   +2 more sources

Sediment and total phosphorous contributors in Rock River watershed

Journal of Environmental Management, 2014
Total phosphorous (TP) and total suspended sediment (TSS) pollution is a problem in the US Midwest and is of particular concern in the Great Lakes region where many water bodies are already eutrophic. Increases in monoculture corn planting to feed ethanol based biofuel production could exacerbate these already stressed water bodies.
Eric G, Mbonimpa, Yongping, Yuan, Maliha S, Nash, Megan H, Mehaffey   +3 more
openaire   +2 more sources

ERYTHROCYTE SEDIMENTATION RATE IN INFECTION OF TOTAL HIP REPLACEMENTS

Orthopedics, 1991
Abstract Erythrocyte sedimentation rate was studied in 79 patients who underwent reoperations for prosthetic hip failures. Fifty-one patients had infected prostheses, confirmed on the basis of sinus formation and cultures taken at the revision operation. Twenty-eight had proven mechanical loosening of their hip prostheses, as five out of five
B, Thorén, A, Wigren
openaire   +2 more sources

Determination of total phosphorus in lake sediments

Hydrobiologia, 2012
Several methods are in use to measure total phosphorus in lake sediments making cross-study comparisons tenuous, and may lead to potential errors in calculating other phosphorus fractions. Four methods in common use in the limnological literature were compared using sediments spanning a range of organic content from 2 to 35% C.
openaire   +1 more source

Total Sediment Load Measurement Using Point-Source Suspended-Sediment Data

2023
Source: https://erdc-library.erdc.dren.mil/jspui/
openaire   +1 more source

Determination of total chromium in sediments by FAAS

Fresenius' Journal of Analytical Chemistry, 1995
The determination of chromium by flame atomic absorption spectroscopy (FAAS), e.g. as performed for environmental matrices, is still a controversial matter as can be concluded from a literature review. Most controversy is due to the measurement conditions or the effect of the interferences; other conditions such as digestion seem to be less critical ...
A. Sahuquillo, R. Rubio, G. Rauret, B. Griepink   +3 more
openaire   +1 more source

Stratigraphy of total metals in PIRLA sediment cores

Journal of Paleolimnology, 1992
Sediment cores from 30 low-alkalinity lakes in northern New England (NE), New York (NY), the northern Great Lakes States (NGLS) of Minnesota, Michigan, and Wisconsin, and Florida (FL) have been dated by 210Pb and analyzed for water and organic content, eight major elements (Al, Ti, Fe, Mn, Ca, Mg, Na, K) plus four trace metals (Pb, Zn, Cu, and V ...
Stephen A. Norton, Ray W. Bienert, Michael W. Binford, Jeffrey S. Kahl   +3 more
openaire   +1 more source

The ratio of measured to total sediment discharge

International Journal of Sediment Research, 2019
Abstract It is important to examine the ratio of measured to total sediment discharge to determine the error in measured sediment transport rates from depth-integrated samplers. The ratio of measured to total sediment discharge as well as the ratio of suspended to total sediment discharge are examined based on the Modified Einstein Procedure.
Chun-Yao Yang, Pierre Y. Julien
openaire   +1 more source

Process Based Modeling of Total Longshore Sediment Transport

Journal of Coastal Research, 2004
Abstract Waves, currents, and longshore sand transport are calculated locally as a function of position in the nearshore region using process based numerical models. The resultant longshore sand transport is then integrated across the nearshore to provide predictions of the total longshore transport of sand due to waves and longshore currents.
Kevin A. Haas, Daniel M. Hanes
openaire   +1 more source

Determination of Total Mercury in Soils and Sediments

Journal of Environmental Quality, 1975
AbstractA simple one‐step digestion procedure was evaluated for extracting total mercury from soils and sediments. The procedure evaluated involves digesting soil or sediment samples with concentrated HNO3 and 4N K2Cr2O7 (2:1, vol/vol) for 4 hours at 55C and analyzing mercury in the extract by flameless atomic absorption. Recovery of total mercury from
M. Floyd, L. E. Sommers
openaire   +1 more source