Bridging of a Liquid Chromatography-Tandem Mass Spectrometry Method for Oxytetracycline, Chlortetracycline, and Tetracycline in Bovine Kidney with the Official Microbial Growth Inhibition Assay.

Background: Oxytetracycline (OTC), chlortetracycline (CTC), and tetracycline (TC) are approved antibiotics used to treat bacterial infections in cattle. To ensure human food safety, a tolerance has been established for the sum of these three TC residues as 12 parts per million in bovine kidney in the United States The current official regulatory method for quantifying these antibiotics in the target organ is a labor-intensive microbiological assay.

Objective: Our laboratory developed and validated a fast, selective, and less laborious method utilizing LC-tandem mass spectrometry for the determination and confirmation of the three tetracyclines (TET) in bovine kidney.

Examining the population level and individual level longitudinal stability of psychosocial measures in the US Army's Global Assessment Tool (GAT).

As a component of the US Army's Comprehensive Soldier and Family Fitness program (CSF2), the Global Assessment Tool (GAT) represents a multidimensional constellation of measures designed to assess characteristics related to resilience. Using a foundation of validated measures from prior research, the GAT has been the vehicle for self-assessment to provide Soldiers, their families, and Army Civilians snapshots of their psychosocial wellness. Despite the long history of the measurement instrument (first implemented in 2009) and widespread use (mandatory for all active-duty Soldiers annually), the longitudinal capabilities of the GAT has received little attention.

Impacts and Echoes: The Lasting Influence of the White House Conference on Food, Nutrition, and Health.

The 1969 White House Conference on Food, Nutrition, and Health had a significant influence on the direction of food and nutrition policy in the United States. The conference produced recommendations leading to federal legislation and programs to alleviate hunger and malnutrition, improve consumers' nutrition knowledge through education and labeling, and monitor the nutritional status of the population. Fifty years later, its legacy was revisited at a conference convened by Harvard University and Tufts University.

Multivariate Statistical Analysis of Cigarette Design Feature Influence on ISO TNCO Yields.

The aim of this study is to explore how differences in cigarette physical design parameters influence tar, nicotine, and carbon monoxide (TNCO) yields in mainstream smoke (MSS) using the International Organization of Standardization (ISO) smoking regimen. Standardized smoking methods were used to evaluate 50 U.S.