BACKGROUND Accurate assessment of dietary intake continues to challenge researchers, especially in field, or non-laboratory settings. OBJECTIVE In this study, digital food photography (DFP) methodology was used to assess nutritional intake (NI) of Soldiers participating in the US Army's Ranger Selection and Assessment Program (RASP). METHODS During this high-intensity six-week course, Soldi...

Diisopropylfluorophosphonate (DFP) is a drug which has been made available for physiological and pharmacological investigation as a result of researches carried out on the alkylfluorophosphonates by McCombie and Saunders (1946) for the Ministry of Supply. The anticholinesterase action of these compounds was recognized in 1941 by Adrian, Feldberg, and Kilby (1947). Later, Mackworth and Webb (194...

The distribution of acetylcholinesterase (ACHe) in the twitch fibers of the extraocular muscles of the mouse was examined by light and electron microscope autoradiography after labeling with radioactive diisopropyl fluorophosphate (DFP) with, and without, 2-pyridine aldoxime methiodide (2-PAM) reactivation. The values obtained were compared with those previously reported for the diaphragm and s...

The subcellular localization of plasminogen activator (PA) in human neutrophils was studied. The cells were disrupted by nitrogen cavitation and fractionated on Percoll density gradients into three major components containing the plasma membranes, the specific granules, and the azurophilic granules. The biochemical markers we used to identify these organelles were alkaline phosphatase, vitamin ...

There is growing evidence for the assumption that the profound biological effects produced by some compounds in low concentrations may be attributed to an interaction with enzymes. This is true for certain cell constituents as well as for toxic compounds not existing normally in the body. Several vitamins have been found to be prosthetic groups of enzymes and for a number of drugs it could be d...

There is growing evidence for the assumption that the profound biological effects produced by some compounds in low concentrations may be attributed to an interaction with enzymes. This is true for certain cell constituents as well as for toxic compounds not existing normally in the body. Several vitamins have been found to be prosthetic groups of enzymes and for a number of drugs it could be d...

Oil-induced mononuclear phagocytes (MN) were quantitatively assayed for various hydrolases as unfractionated suspensions of frozen and thawed cells. They apparently contain two proteases. The first, measured with urea- or acid-denatured hemoglobin, was similar to purified Proteinase I of lung with respect to pH optimum (pH 4), stability, hydrolytic and polymerizing activities, and reactions to ...

Montmorillonite K-10 functionalized with α-nucleophilic 2-pralidoxime (PAM) and its zwitterionic oximate form (PAMNa) is introduced as a versatile material for chemical protection against organophosphorous (OP) compounds such as pesticides and chemical warfare agents (CWA). Upon inclusion into the montmorillonite interlayer structure, the pyridinium group of PAMNa is strongly physisorbed onto a...

In this paper we propose a new measure for judging the dynamic behavior and testability of integrated circuits. This measure, called delay fault probability (DFP), is based on a statistical analysis of delay faults. For its computation, a sequence of signal delay faults along a path, their correlation, and the clock cycle time are considered. In order to properly model these distributed delays ...