2,106 research outputs found
The Gay-Berne mesogen: a paradigm shift?
No full textA Commentary on the paper “Computer simulation studies of anisotropic systems XIX. Mesophases formed by the Gay-Berne model mesogen„, by G.R. Luckhurst, R.A. Stephens and R.W. Phippen. First published in Liquid Crystals, 8, 451-464 (1990)
Computer simulation studies of anisotropic systems XIX: mesophases formed by the Gay-Berne model mesogen
No full textWe report the results of a molecular dynamics computer simulation of particles interacting via the Gay-Berne potential with parameters selected to approximate those of mesogenic molecules. The system was found to form a variety of mesophases as the temperature was lowered. We have characterized these phases with the aid of computer graphics techniques to visualize the molecular organization within configurations taken from the production stage of the simulations. The phases have been identified, on the basis of such images, as isotropic, nematic, smectic A, smectic B and crystal
"Top Men of the WPA in Oklahoma in 1939"
No full textPhotograph of "Top Men of the WPA in Oklahoma in 1939." Seated: Ron Stephens. L to R: standing, Roy W. Kenny, Steve Bowman, Charles H. Tompkins, R.W. Stinson, and George Love, c. 1939
What remains of monetarism?
No full textIn October 1979 the Federal Reserve, in an attempt to curb double-digit inflation, announced that it would place more weight on monetary aggregates in policy deliberations. This policy shift helped reduce inflation but sent the economy into a recession. Three years later the Fed abandoned monetary targets and returned to targeting the federal funds rate. ; Monetary growth targets currently play no official role in the setting of U.S. monetary policy. Is such disregard justified by the data any more today than it was twenty years ago? This article provides a historical perspective on the development and apparent failure of monetarism as a policy guide. ; The author also explores whether the basic monetarist propositions still hold true for a sample of fifteen countries. The analysis suggests that it is premature to dismiss monetary aggregates as uninformative. The data from the economies studied indicate that, in general, nominal income growth and inflation are positively related to money growth. While these results do not support short-term manipulation of the monetary aggregates to deliver precise control over movements in income and prices, they also do not reject the notion that changes in money growth have important long-term effects on the economy. What the results suggest, therefore, is that failure to acknowledge this empirical fact could lead to undesirable policy consequences.Monetary policy ; Monetary theory
The spatial concept of spas development of W. Pencakowska and Tourism Area Life Cycle of R.W. Butler – similarities and differences of both evolutionary models
No full textPraca omawia dwie koncepcje ewolucji obszaru turystycznego, które przybliżają mechanizm rozwoju funkcji turystycznej i uzdrowiskowej. Pierwsza to koncepcja W. Pencakowskiej, natomiast druga to model ewolucji obszaru turystycznego TALC R.W. Butlera. Obie prace przybliżają wyjaśnienie mechanizmu rozwoju przestrzenno-społecznego obszarów turystycznych. W artykule przedstawiono podobieństwa i różnice obu koncepcji.Article discusses two evolutionary concepts of tourism area development, which broaden knowledge about the development mechanism of tourism destinations and spas. One of them is the concept of W. Pencakowska, while the second is a model of Tourism Area Life Cycle (TALC) of R.W. Butler. Both concepts allow the explain the mechanism spatial and social development of the tourist areas. The author points out the similarities and differences of both concepts
FAIR Models
No full textGreen Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Water Resource
1935-36 Diploma Class
No full textBlack and white photo; unmounted.Back - L.L. Donohue, J.M. O'Neill, J.W. Gilchrist; R. Roberts, R.W. Cowley, E.H. Orchard; middle - W.M.C. Hackett, G.S. Jenkins,G.C. Kay, A.E.A. Alcock, D.B. Muirhead, R.L. Robertson, C.R. Mackay; front - C.A. Stephens, S.A. Ward, L.S. Mann, Dr. A.R. Callaghan (Principal), H.V. Chamberlain, K.K. Kain
November 22, 1911 Page one Council spectators disappointed
No full textMarcy, W.R.; Biles, Robert; Green, Milo; Moore, J. White; Rogers, Jerry S.; Heath, J.C.; Fuge, J.E.; Thorbeck, William; Kuehn, W.A.; Forsyth, R.W.; Stockand, Peter; Watson, Van; Maxwell, J.W.; Wiggins, Charles; Stephens, W.R.; Ryan, J.N.; Mainland, Donald; Crowell, John; Eskildson, S.M.; Peters William; Gnagey, U.D.; Tibbals, Harvey L.; Anderson, George; Intermela, Charles; Wanamaker, Clarence I.; Beduhn, Theodore; Olberg, C.H.; Hanson, H.L.; Westergard, C.; Pleasance, F.R.
The Northern Entrance to Moreton Bay
No full textAt the northern entrance to Moreton Bay there is a large and complex tidal delta system of sand banks and channels, which stretches from Comboyuro in the southeast to Caloundra in the northwest. The system forms a barrier to the passage of beach and surf-zone sand and has trapped large quantities of sand, much of which is being transported from Moreton Island towards the mainland. The sandbanks are formed by the continuously evolving patterns of ebb and flood dominated channels, which are enclosed by linear tidal current ridges and often terminated by parabolic sand ridges. Traction load transport by powerful currents is appreciable producing a variety of large- and small-scale asymmetic sand ripples
Carbon: Phosphorus stoichiometry and food chain production
No full textIncident light was manipulated in large plankton towers containing algae, microbes, and herbivores. Paradoxically, food chain production was lower with greater light energy input. This apparent paradox is resolved by recognizing stoichiometric constraints to food chain production. At high light, elevated algal biomass was achieved mainly by increases in cellular carbon. Consumers have a high phosphorus demand for growth, and thus a large excess of carbon inhibited, rather than stimulated, their growth. These experiments may help us predict the consequences of anthropogenic perturbations in nutrients, carbon, and solar energy. They also may help us to understand the wide range of consumer biomass and production at a given level of primary productivity in ecosystems. [ABSTRACT FROM AUTHOR]Peer reviewedfinal article publishedcarbonzooplanktontrophiclevelphytoplanktonphosphorusnutrient limitationenergybacteri
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