1,689 research outputs found
Inland extent of the Weddell Sea Rift imaged by new aerogeophysical data
No full textThe Weddell Sea Rift was a major focus for Jurassic extension and magmatism during the early stages of Gondwana break-up and underlies the Weddell Sea Embayment, which separates East Antarctica from a collage of crustal blocks in West Antarctica. Newly-collected aerogeophysical data over the catchments of Institute and Möller ice streams reveal the inland extent of the Weddell Sea Rift against the Ellsworth-Whitmore block and a hitherto unknown major left-lateral strike slip boundary between East and West Antarctica. Aeromagnetic and gravity anomalies define the regional subglacial extent of Proterozoic basement, Middle Cambrian rift-related volcanic rocks, Jurassic intrusions and sedimentary rocks of inferred post-Jurassic age. 2D and 3D magnetic depth-to-source estimates were used to help constrain joint magnetic and gravity models for the region. The models reveal that Proterozoic crust similar to that exposed at Haag Nunataks, extends southeast of the Ellsworth Mountains to the margin of the Coastal Basins. Thick granitic Jurassic intrusions are modelled at the transition between the Ellsworth-Whitmore block and the thinner crust of the Weddell Sea Rift and within the Pagano Shear Zone. The crust beneath the inland extension of the Weddell Sea Rift is modelled as being either ~ 4 km thinner compared to the adjacent Ellsworth-Whitmore block or as underlain by an up to 8 km thick mafic underplate
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
Underground waters of the coastal plain of Georgia /
No full textPrepared in cooperation with the Geological Survey of Georgia.TC801.U2 no. 341 with: Surface water supply of the Yukon-Tanana region, Alaska / by C.E. Ellsworth and R.W. Davenport. Washington : Govt. Print. Off.,1915. Bound together subsequent to publication.Includes bibliographical references and index.Mode of access: Internet
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
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
Designing for acceptance: Exchange design for electronic intermediaries
No full textElectronic business has brought many success stories as well as failures. Intermediaries are a particularly interesting application domain: on the one hand, they are given opportunities by electronic business to reinvent their value logic, while on the other they are threatened by opportunities for customers and suppliers to deploy electronic business to do business directly. Designing for Acceptance addresses the acceptance of electronic intermediaries by studying the design of the exchange. For example, should a web catalogue provide price information and should it consider an extension with transaction functionality? Developing the right exchange design is a complex undertaking because of the many design options and the interests of multiple actors that need to be taken into account. Four cases were studied: Tapestria (interior fabrics), SeaQuipment (maritime products), Meetingpoint (insurances) and Voogd & Voogd (insurances). The results are an exchange design model and patterns that are derived from numerous case lessons and are supported by insights from theories on electronic intermediaries, acceptance and business design. The exchange design model offers a systematic insight into generic exchange design themes that are relevant to the interests of customers, intermediary and suppliers. Exchange design patterns discuss specific trade-offs with respect to one or more themes. This study contributes to current knowledge by providing support for balancing interests in exchange design beyond simple prescriptions like "creating win-win situations". The exchange design themes and patterns are convenient instruments that offer constructive support for developing a vague electronic business idea into a concrete service concept.Technology, Policy and Managemen
Report on Graham Island, British Columbia:
No full textby R.W. Ells.At head of title: Canada. Dept. of Mines. Geological Survey Branch
On the application of the semi-closed thermosyphon system to gas turbine blade cooling
No full textMechanical, Maritime and Materials Engineerin
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