Normal aging can result in a decline of memory and muscle function. Exercise may prevent or delay these changes. However, aging-associated frailty can preclude physical activity. In young sedentary animals, pharmacological activation of AMP-activated protein kinase (AMPK), a transcriptional regulator important for muscle physiology, enhanced…

This paper describes a series of laboratory exercises for upper level biology courses, independent research and/or honors programs. Students sampled fish from a local water body with the assistance of a local fish and wildlife agency. Tissue samples from collected fish were utilized to obtain estimates of the stable isotopes delta[superscript 13]C…

Describes an experiment in which rat adipose tissue samples are exposed to labeled glucose; insulin is added to one sample. Subsequent scintillation counting demonstrates the ability of insulin to facilitate the entry of glucose into the tissue. (MLH)

Red snapper, "Lutjanus campechanus," were sampled with hook and line at natural (n = 33) and artificial (n = 27) reef sites in the northern Gulf of Mexico from 2009-2011. Stomachs (n = 708) were extracted and their contents preserved for gut content analysis, and muscle tissue samples (n = 200) were dissected and frozen for stable…

Magnetic resonance imaging (MRI) is a new technique that affords anatomic images in multiple planes and may provide information on tissue characterization. This document describes how MR images are obtained and discusses how they differ from those produced by x-rays. The major portion of this report covers a conference held in October, 1987, which…

Children spend more time in school than anywhere else with the exception of home. This bulletin provides information to help support healthy and productive school environments for our nation's school children. It contains contributions from American Medical Journals, compiled from the year July, 1914 through July 1915. The following contents are…