Soil carbon response to long-term biosolids application.

Astudy was conducted in three agroecosystems in California (Sacramento, Solano, and Merced counties) that received biosolids applications for 20 yr. Management varied in application rates and frequencies, resulting in average cumulative amount of biosolids applied of 74 (Solano), 105 (Merced), and 359 (Sacramento) Mg biosolids ha , resulting in the addition of 26 (Solano), 36 (Merced), and 125 (Sacramento) Mg biosolids-C ha . Measurements included soil organic carbon (SOC) and total nitrogen (N) concentrations from 0 to 100 cm and microbial biomass C (MBC) and microbial biomass N (MBN) from 0 to 30 cm in biosolids-amended and control sites.

Risk-taking behaviors among Israeli adolescents exposed to recurrent terrorism: provoking danger under continuous threat?

Objective: This study aimed to assess 1) the relationship between risk-taking behaviors and exposure to terrorism, 2) the relationship between posttraumatic symptoms and risk-taking behaviors, and 3) gender differences in the type and frequency of risk-taking behaviors and their differential associations with posttraumatic symptoms.

Method: The participants were 409 Israeli adolescents 15 to 18 years of age. Exposure to terrorism was assessed with a questionnaire developed specifically for the Israeli security situation.

Clinical characteristics and outcome of complicated pneumococcal pneumonia in a pediatric population.

The incidence of complicated pneumonia caused by S. pneumoniae is reported to be increasing. This increase may be related to host susceptibility and/or pathogen virulence.

Symptomatic urinary tract infections following voiding cystourethrography.

The objective of this study was to assess the frequency of symptomatic urinary tract infections (UTIs) following voiding cystourethrography (VCUG) while using prophylactic antibiotics. Medical records of 421 patients who underwent a VCUG during a period of 4 years were reviewed. Three hundred forty-nine had a VCUG following a febrile UTI, and 72 had the test for evaluation of hydronephrosis.