A phase distribution parameter has been added to the one-dimensional two-phase horizontal flow conservation equations. The phase distribution parameter was incorporated into the conservation equations in an attempt to add stability and remove correlation switching by incorporating gravity. Determination of the phase distribution parameter requires an average void fraction profile...
Geochemical characterization methods are commonly used in the reconstruction of prehistoric raw material use and procurement systems. Trace element studies of lithic source material and artifacts, specifically those made of obsidian, can reveal important information about the environmental and cultural factors which influence the prehistoric distribution of raw material. The...
The incorporation of experimental archaeology into the study of lithic technologies has provided archaeologists with a framework to understand past behaviors. The analysis of stone tools has the potential to reveal morphologic characteristics unique to the manufacture, use, and maintenance of stone tools. The implementation of controlled experiments to identify...
Plasma vitamin B₁₂ concentrations of 16 elderly women were
measured using the growth response of the microorganism, Ochromonas
malhamensis. The method required major modifications which
are described in detail. All women had plasma concentrations of
vitamin B₁₂ above the normal minimum of 200 pg/ml despite the fact
that the diets...
Federally designated wilderness areas in the United States are uniquely required to provide opportunities for particular types of recreational experiences. According to the Wilderness Act of 1964, the law that governs the management of designated wilderness in the U.S., wilderness areas are to provide “outstanding opportunities for solitude or a...
With increased resource development on the western Arctic coastal plain of Alaska (especially within the oil extraction industry) it is important to understand the basic life history attributes of whitefish stocks in the region in order to ensure appropriate management. These fish are a crucial part of subsistence harvests for...
To observe the effects of oviposition as related to time of insemination
on fertility, four trials were conducted in which individually
caged White Leghorn hens were artificially inseminated with 0.05 cc
of undiluted mixed semen obtained from 4 to 5 cockerels. These inseminations
were made at 9:45 a.m. , 10:00...