Closely Related Brucella Species Widely Differ in their Vegetative and Intracellular Growth.

Growth rate is a key prokaryotic trait that allows for estimating fitness and understanding cell metabolism. While it has been well studied in model organisms, there is limited data on slow-growing bacteria. In particular, there is a lack of quantitative studies on Brucella species.

Mobile phone ownership, social media use, and substance use at ages 11-13 in the ABCD study.

Introduction: There is ongoing concern about the impact of increasing use of social media and digital devices on unhealthy behaviors such as substance use in youth. Mobile phone and social media use have been associated with substance use in adolescent and young adult samples, but few studies have evaluated these relationships in younger samples.

Methods: This secondary analysis of data drawn from the ABCD Study examined associations between youth-reported mobile phone ownership and social media use at age 11-12 and use of alcohol, nicotine/tobacco, and cannabis over the next 18 months.

Social cognitive influences associated with susceptibility to nicotine and tobacco use in youth in the ABCD Study.

Introduction: Chronic use of nicotine and tobacco products (NTP) continues to be a leading cause of morbidity and mortality. Uptake is most common among youth and young adults but knowledge about effective prevention and intervention approaches is insufficient. The goal of the present study was to examine the impact of social cognitive factors on NTP risk over time among youth in the national ABCD cohort.

Undercover story.

The covers for and for display enigmatic portraits. That for carries a face, the origins of which remain mysterious whereas contains a portrait of Gustav Theodor Fechner which hovers around the threshold for detection.