5,513 research outputs found
What remains of monetarism?
Full text linkIn 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
Robust H∞ control of networked control systems with access constraints and packet dropouts
No full textWe consider a class of networked control systems (NCSs) where the plant has time-varying norm-bounded parameter uncertainties, the network only provides a limited number of simultaneous accesses for the sensors and actuators, and the packet dropouts occur randomly in the network. For this class of NCSs with uncertainties and access constraints as well as packet dropouts, we derive sufficient conditions in the form of linear matrix inequalities that guarantee robust stochastic stabilisation and synthesis of H∞ controller. An example is provided to illustrate our proposed method
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
Rapid and mask-less laser-processing technique for the fabrication of microstructures in polydimethylsiloxane
No full textWe report a rapid laser-based method for structuring polydimethylsiloxane (PDMS) on the micron-scale. This mask-less method uses a digital multi-mirror device as a spatial light modulator to produce a given spatial intensity pattern to create arbitrarily shaped structures via either ablation or multi-photon photo-polymerisation in a master substrate, which is subsequently used to cast the complementary patterns in PDMS. This patterned PDMS mould was then used for micro-contact printing of ink and biological molecules
Exposure assessment and modeling of particulate matter for asthmatic children using personal nephelometers
No full textDesigning 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:
Full text linkby R.W. Ells.At head of title: Canada. Dept. of Mines. Geological Survey Branch
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