The Dyslexia Candidate Locus on 2p12 Is Associated with General Cognitive Ability and White Matter Structure

Peer reviewe

Erosion Characteristics of Alabama Soils Obtained with the Erosion Function Apparatus and Correlations with Classification Properties Erosion Characteristics of Alabama Soils Obtained with the Erosion Function Apparatus and Correlations with Classificatio

ABSTRACT This report presents measurements of soil erosion properties obtained with the Erosion Function Apparatus (EFA) and correlations between soil erosion properties and routine soil classification properties. Shelby tube soil samples from bridge sites in Alabama were tested in the EFA to determine their erosion function (scour rate vs. shear stress). Properties determined from the erosion functions were the critical shear stresses and the initial slopes ofthe erosion functions (initial erodibility). Erosion functions were measured for 20 soils. More cohesive behavior, quantified in the erosion functions, corresponded to sites ofmirrimal historical scour. Classification properties considered were: soil description, particle size distribution, plasticity index, and blow counts from the standard penetration tests. Correlations indicated that critical shear stress decreases as particle size increases, initial erodibility decreases as critical shear stress increases, critical shear stress increases as plasticity index increases, and critical shear stress was not strongly related to blow counts. 1 ACKNOWLEDGMENT