Gastroenterology

CRP can help assess severity of acute ulcerative colitis

(HealthDay)—A C-reactive protein (CRP) cutoff is a sensitive and practical alternative to erythrocyte sedimentation rate (ESR) as a criterion to help determine ulcerative colitis (UC) activity, according to a study published ...

Genetics

Pleistocene sediment DNA from Denisova Cave

Max Planck researchers have analyzed DNA from 728 sediment samples from Denisova Cave. Their study provides unprecedented detail about the occupation of the site by both archaic and modern humans over 300,000 years. The researchers ...

Diseases, Conditions, Syndromes

Recommendations developed for evaluating chronic diarrhea

(HealthDay)—In new American Gastroenterological Association (AGA) clinical practice guidelines, published in the September issue of Gastroenterology, recommendations are presented for laboratory evaluation of chronic watery ...

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Sediment

Sediment is any particulate matter that can be transported by fluid flow, and which eventually is deposited.

Sediments are most often transported by water (fluvial processes) transported by wind (aeolian processes) and glaciers. Beach sands and river channel deposits are examples of fluvial transport and deposition, though sediment also often settles out of slow-moving or standing water in lakes and oceans. Desert sand dunes and loess are examples of aeolian transport and deposition. Glacial moraine deposits and till are ice transported sediments.

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