Assessing aquifer vulnerability from lumped parameter modeling of modern water proportions in groundwater mixtures: Application to California's South Coast Range.

Groundwater in agriculture-dominated regions of California has historically experienced nitrate pollution due to the application of excess nitrogen fertilizers. This study examines the nitrate pollution vulnerability of groundwater in sedimentary aquifers of California's South Coast Range using stepwise logistic regression (LR) modeling. Our results indicate an overall excellent model fit, but an acceptable statistical significance, according to a Wald statistic (p-Wald) cutoff of 0.

Emotion recognition in faces and the use of visual context in young people with high-functioning autism spectrum disorders.

We compared young people with high-functioning autism spectrum disorders (ASDs) with age, sex and IQ matched controls on emotion recognition of faces and pictorial context. Each participant completed two tests of emotion recognition. The first used Ekman series faces.

Pulsed radiofrequency application in the treatment of chronic pain.

The efficacy of pulsed radiofrequency (PRF) in the treatment of painful lumbosacral spondylosis has been reported. This case series reviews 22 consecutive patients presenting to clinic who had been previously treated with PRF with good results. Patients being prescribed opioids were excluded.