نتایج جستجو برای: missoula
تعداد نتایج: 218 فیلتر نتایج به سال:
Let W be an arbitrary Coxeter group. If two elements have expressions that are cyclic shifts of each other (as words), then they are conjugate (as group elements) in W . We say that w is cyclically fully commutative (CFC) if every cyclic shift of any reduced expression for w is fully commutative (i.e., avoids long braid relations). These generalize Coxeter elements in that their reduced express...
BACKGROUND Association between perceived social support and quality of life in hemodialysis patients represents a new area of interest. AIM The aim of this study was to explore the effect of social support on the quality of life of hemodialysis patients. MATERIAL AND METHODS In this study 258 hemodialysis patients were enrolled. Data was collected using a questionnaire which consisted of th...
This is an expository invited paper presented at a Conference on the Influence of Computing on Mathematical Research and Education, at the summer meeting of the American Mathematical Society at Missoula, Montana, August, 1973. AN INTRODUCTION TO SOME CURRENT RESEARCH IN NUMERICAL COMPUTATIONAL COMPLEXITY J. F. Traub This is a Conference on the Influence of Computing on Mathematical Research and...
OBJECTIVES To validate the QUAL-E, a new measure of quality of life at the end of life. METHODS We conducted a cross-sectional study to assess the instrument's psychometric properties, including the QUAL-E's associations with existing measures, evaluation of robustness across diverse sample groups, and stability over time. The study was conducted at the VA and Duke University Medical Centers,...
Smog chamber experiments were conducted to investigate the chemical and physical transformations of organic aerosol (OA) during photo-oxidation of open biomass burning emissions. The experiments were carried out at the US Forest Service Fire Science Laboratory as part of the third Fire Lab at Missoula Experiment (FLAME III). We investigated emissions from 12 different fuels commonly burned in N...
Organic aerosol (OA) emission ratios (ER) have been characterized for 67 burns during the second Fire Laboratory at Missoula Experiment. These fires involved 19 different species representing 6 major fuels, each of which forms an important contribution to the U.S. biomass burning inventory. Average normalized ΔOA/ΔCO ratios show a high degree of variability, both between and within different fu...
Research was conducted in order to assess potential exposure to asbestos while harvesting firewood from amphibole-contaminated trees near Libby, MT, USA. Three firewood-harvesting simulations took place in the summer and fall of 2006 in the Kootenai Forest inside the US Environmental Protection Agency (EPA) restricted zone surrounding the former W.R. Grace vermiculite mine. Another simulation w...
Croplands are highly productive ecosystems that contribute to land–atmosphere exchange of carbon, energy, and water during their short growing seasons. We evaluated and compared net ecosystem exchange (NEE), latent heat flux (LE), and sensible heat flux (H) simulated by a suite of ecosystem models at five agricultural eddy covariance flux tower sites in the central United States as part of the ...
A pilot cropland carbon sequestration program within north central Montana has allowed farmers to receive carbon credit for management adjustments associated with changing from tillage-based agricultural systems to no-till. Carbon credit can also be obtained by adopting conservation reserve, where cropland is planted into perennial vegetation. Summer fallowing is also considered within the cred...
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