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  • B R Smith
  • 2001
Magnetic resonance microscopy (MRM) is a fast and non-destructive imaging technique that can analyze the three-dimensional structure of the embryonic heart both qualitatively and quantitatively. Intravascular contrast agents have been developed to accentuate the anatomy of cardiac chambers, the cardiac outflow tract, and major arteries and veins throughout(More)
The metabolic and mechanical requirements of walking are considered to be of fundamental importance to the health, physiological function and even the evolution of modern humans. Although walking energy expenditure and gait mechanics are clearly linked, a direct quantitative relationship has not emerged in more than a century of formal investigation. Here,(More)
Neural sites that interact with the suprachiasmatic nuclei (SCN) to generate rhythms of unrestricted feeding remain unknown. We used the targeted toxin, leptin conjugated to saporin (Lep-SAP), to examine the importance of leptin receptor-B (LepR-B)-expressing neurons in the arcuate nucleus (Arc) for generation of circadian feeding rhythms. Rats given Arc(More)
Partitioning locomotor metabolic rates into resting and locomotor components is a common practice that has both basic and applied value. Here, we evaluated the quantitative influence of the specific baseline value subtracted (quiet standing vs. resting metabolic rates) from the gross metabolic rates measured during walking. We quantified resting, standing(More)
We formulated a "one-size-fits-all" model that predicts the energy requirements of level human walking from height, weight, and walking speed. Our three-component model theorizes that the energy expended per kilogram per stride is independent of stature at mechanically equivalent walking speeds. We measured steady-state rates of oxygen uptake of 78 subjects(More)
Science content is one area of general curriculum access that needs more investigation. Explicit instruction is effective for teaching students with high incidence disabilities a variety of skills, including science content. In this study, we taught three elementary aged students with autism spectrum disorder to acquire science descriptors (e.g., wet) and(More)
Rat spermatozoa from the cauda epididymidis, freed from their cytoplasmic droplets and acrosomes, were found to have a lower lipid content and to incorporate [14C]glucose into their glycerides and glycerophosphatides at a lower rate than spermatozoa from the caput epididymidis. Against the background of the activities of some glycolytic enzymes which(More)
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