Detachment characteristics of root-permeated soils from laboratory jet erosion tests

Measuring Erodibility of Cohesive Soils Using Laboratory Submerged Jet Test

Shigella flexneri causes a severe form of bacillary dysentery characterized by cramping, diarrhea, and fever. S. flexneri uses a type three seceretion system (TTSS) to invade the colonic epithelium by injecting effector proteins directly into the host cell cytoplasm. The TTSS consists of a basal body, spanning both the outer and inner membranes, and a surface exposed needle. After the proper en...

Sprinkler Irrigation Runoff and Erosion Control with Polyacrylamide — Laboratory Tests

Many semiarid and arid soils are prone to irrigation-induced erosion. Polyacrylamide (PAM) greatly reduces erosion from furrow irrigation. We hypothesized that PAM applied via sprinklers will provide erosion control and benefit water infiltration and aggregate stability. Screened (6.4 mm) Rad silt loam (coarse silty, mixed, superactive mesic Durinodic Xeric Haplocambid) was placed in 1.5 by 1.2...

Interference in laboratory tests

Interference in clinical laboratory testing can create discrepancies in test results which can lead to patient harm.  In clinical chemistry, interference is defined as a cause of medically significant difference in the measurand test result due to another component or property of the sample. Interference by endogenous and exogenous substances with assays for clinical analytes is a common prob...

Modeling of piping erosion in loess soils

Extended abstract Introduction Piping erosion is one of the common water erosions usually occurs in soil with low infiltration and soluble minerals that finally changes landscape. Different factors control its occurrence and development. To predict piping occurrence/hazard through modeling, effective factors should be prioritized and considered as inputs of the model. The present study...

Laboratory characteristics of poxviruses isolated from captive elephants in Germany