4,154 research outputs found
Determination of picomole quantitites of hydroperoxides by a coupled glutathione peroxidase and glutathione disulfide specific glutathione reductase assay
No full textCopper-Marginal and Copper-Deficient Diets Decrease Aortic Prostacyclin Production and Copper-Dependent Superoxide Dismutase Activity, and Increase Aortic Lipid Peroxidation in Rats
No full textAOM, G-35 Sec. BB, NATTC, Millington, Tennessee, May 1944
No full textAOM (Aviation Ordnanceman) class G-35 Sec. BB at the Naval Air Technical Training Center in Millington, Tennessee, in May 1944. Front row (l-r): Arthur Jules Gamache, Edward M. Chwala, Anthony J. Fanelli, Edward H. Allen (section leader), John C. Terry, Reynold Trenton Devinney, Elmer B. Fournier. Middle row: Frank Leroy Fogg, Howard Ernest Corbett, Richard John Dawes, Nils S. Gustafson, Charles Kelton Ford, Edward B. Danvir, Hugh Alfred Good. Back row: Wallace J. Farver, Robert Louis Dimka, William F. Harwood, Ladd D. Gintz, Kenneth W. Fink, James Preston Dameron, Peter S. Geydoshek.https://digitalcommons.memphis.edu/speccoll-mss-wwtwo1/1000/thumbnail.jp
Growth differentiation factor 9: bone morphogenetic protein 15 synergism and the potential involvement of heterodimerization
No full textLetterDavid G. Mottershead, Craig A. Harrison, Thomas D. Mueller, Peter G. Stanton, Robert B. Gilchrist and Kenneth P. McNatt
HUMAN CAPITAL ASSESSMENT INDICATORS AS INFLUENTIAL DETERMINANTS PERTAINING TO THE ADMISSION CRITERIA UTILIZED BY PRE-LICENSURE PROGRAMS FOR NURSING EDUCATION
Get PDFThe attainment of educational credentials contributes to the acquisition of human capital. Academic preparedness is a component therein that allows for the attainment of increased levels of education. Most institutions of higher education utilize measures of academic preparedness, such as grade point averages or standardized tests. Requirements for the levels of academic preparedness are based upon many factors. The requirements most relevant to this study are the selectivity of the institution and the academic preparedness of potential candidates of pre-licensure programs for nursing education.
The pre-licensure education of nurses is enigmatic when compared to other professional disciplines. Pre-licensure education for registered nurses exists in three distinct and differently classified programs: a hospital-based diploma program, an associate degree program, or a baccalaureate program. (There is an additional baccalaureate program, known as accelerated second degree programs, for students possessing a baccalaureate degree in another discipline. These accelerated programs are not included in this discussion.) The National Center for Education Statistics classifies each of the three programs, making clear that the differing program levels of post-secondary education are neither equivalent nor interchangeable.
According to the literature, the academic preparedness of individuals and the level of selectivity of higher education institutions vary greatly depending upon the particular classification of nursing program. What then, is the level of programmatic selectivity, given that all three pre-licensure programs produce candidates for the identical occupational certification while attracting candidates known to have varying levels of academic preparedness? This study aimed to determine the levels of selectivity of the three pre-licensure nursing education programs types so as identify trends and patterns within and across pre-licensure program types. In order to determine these trends and patterns, the author examined the admissions requirements that are transparent to the public on schools’ websites in which these programs are housed, employing the methodology of document analysis. The determination for the level of selectivity was based upon Barron’s Measure of Selectivity (Barron’s Educational Series, 2011)
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The Life History and Ecology of the Mayfly Neochoroterpes mexicanus Allen (Ephemeroptera: Leptophebiidae)
Get PDFThe life history and ecology of Neochoroterpes mexicanus was studied from data collected September, 1971, to August, 1972, and January to December, 1973, in the Brazos River, Texas. Nymphal development, instar analysis, voltinism, standing crops, and production estimates were determined from the quantitative samples taken in 1971 and 1972. Aspects of the life history and food habits of 230 specimens were arrived at from qualitative samples and light box captures in 1973. Laboratory investigation in 1973 helped in establishing instar analysis, egg incubation and description, and first instar descriptions. Neochoroterpes mexicanus appeared to have three generations per year with brood overlap in the summer and fall. It displayed 16 and 19 instars for overwintering and combined summer generations respectively
Surface density of states in the many-neighbor approximation
No full textPT: J; CR: DAVISON SG, 1969, CHEM PHYS LETT, V3, P424 DAVISON SG, 1972, INT J QUANTUM CHEM, V6, P387 DAVISON SG, 1976, INT J QUANTUM CHEM, V10, P867 ECONOMOU EN, 1983, SOLID STATE SCI SER, V7 KALKSTEIN D, 1971, SURF SCI, V26, P85 LAVIS DA, UNPUB LAVIS DA, 1985, J PHYS C SOLID STATE, V18, P1387; NR: 7; TC: 4; J9: J PHYS CHEM; PG: 4; GA: A0336Source type: Electronic(1
Heat Transfer to Sprays and Flowing Gases
No full textTitle: Heat Transfer to Sprays and Flowing Gases, Author: Kenneth G. Pollock, Location: ThodeAn experimental investigation of an Atomized Suspension Technique
system was carried out in an experimental apparatus of semi-pilot plant
scale. The complex gas flow patterns which occur in such systems as the
result of the interaction of natural convection and forced convection
prevented a quantitative analysis of the system. The problem was then approached by dividing the overall process into
a number of idealized studies; these were convection in the entrance region,
radiation to a gas, radiation to a cloud of droplets. A theoretical model was developed to predict heat-transfer rates
and gas temperature profiles in the entrance region (x/D < 2) of a
cylindrical coolumn. The model was verified experimentally. A theoretical gas- radiation model was developed using the zoning
technique of Hottel. Experimental gas-temperature measurerrents qualitatively
verified the model. An investigation of the established immersion cell technique for
the determination of drop-size distributions in sprays indicated that
this technique could not be used with any confidence in systems where
the spray is moving at low velocities. Several experimental devices and techniques were developed
throughout the course of this study.ThesisDoctor of Philosophy (PhD
Molecular Dynamics Simulations of Bromine Clathrate Hydrates.
No full textA polarizable force field that explicitly includes contributions from exchange repulsion, dispersion, charge penetration, and multipole electrostatics was developed to describe the interaction between bromine and water. This force field was combined with a polarizable force field for water and used in molecular dynamics simulations to calculate the relative energetics of three bromine clathrate hydrates. The simulations predict the tetragonal structure (Allen, K. W.; Jeffrey, G. A. J. Chem. Phys. 1963, 38, 2304) to be the most stable, with the CS-I and CS-II cubic structures being less stable. Although the CS-II species is not the most stable energetically, we argue that it could be formed under conditions of low bromine concentration, in agreement with recent measurements (Goldschleger, I. U.; Kerenskaya, G.; Janda, K. C.; Apkarian, V. A. J. Phys. Chem. A 2008, 112, 787) that provide evidence for three different bromine hydrate crystal types.\ud
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Centrifuge modeling of the impact of local and global scour erosion on the monotonic lateral response of a monopile in sand
Get PDFCopyright © 2020 by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. The majority of offshore wind turbines are founded on large-diameter, open-ended steel monopiles. Monopiles must resist lateral loads and overturning moments because of environmental (wind and wave) actions, whereas vertical loads tend to be comparatively small. Recent developments in turbine sizes and increases in hub heights have resulted in pile diameters increasing rapidly, whereas the embedment length to diameter ratio (L/D) is reducing. Soil erosion around piles, termed scour, changes the soil strength and stiffness properties and affects the system's load resistance characteristics. In practice, design scour depths of up to 1.3D are routinely assumed during the turbine lifetime; however, the impact on monopiles with low L/D is not yet fully understood. In this article, centrifuge tests are performed to assess the effect of scour on the performance of piles with low L/D. In particular, the effect of combined loads, scour type (global, local), and depth are considered. A loading system is developed that enables application of realistic load eccentricity and combined vertical, horizontal, and moment loading at the seabed level. An instrumented 1.8-m-diameter pile with L/D = 5 is used. A friction-reducing ball-type connection is designed to transfer lateral loads to the pile without inducing any rotational pile-head constraint, which is associated with loading rigs in tests of this nature. Results suggest that vertical and lateral load interaction is minimal. Scour has a significant impact on the lateral load-bearing capacity and stiffness of the pile, leads to increases in bending moment magnitude along the pile shaft, and lowers the location of peak pile bending moment. The response varies with scour type, with global scour resulting in larger moments than local scour. The size of the local scour hole is found to have a significant impact on the pile response, suggesting that scour hole width should be explicitly considered in design
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