1,845 research outputs found
Breeding and Evaluation of Squash and Pumpkin for Multiple Disease and Insect Resistance
No full textNYS IPM Type: Project ReportThe summer squash ‘Whitaker’, developed in a Cornell breeding program partially funded by the NYS IPM Program, is resistant to more diseases than any other squash variety. Crosses were made this year with ‘Whitaker’ to incorporate resistance to additional diseases and an insect into ‘Whitaker’ and other varieties. Resistance to watermelon mosaic virus was emphasized in the crosses and virus tests. Crosses and tests were also made for resistance to cucumber beetles
Breeding and Evaluation of Squash and Pumpkin with Multiple Disease and Insect Resistance
No full textNYS IPM Type: Project ReportThe summer squash variety ‘Whitaker’ developed in this breeding program was introduced in 1998. It should reduce the need for pesticide application since it is resistant to four important diseases - cucumber mosaic virus, zucchini yellow mosaic virus, papaya ringspot virus, and powdery mildew. ‘Whitaker’ has four species, more than other squash varieties, in its complex pedigree. This variety is named in honor of the late Dr. T.W. Whitaker, who discovered one of the wild species we used as a source of multiple disease resistance
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
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Infrasonic Monitoring
No full textInfrasound signals are regular acoustic signals in that they are longitudinal pressure waves albeit at rather low frequency. Many researchers would place infrasound frequencies in the range of 0.1 to 10.0 Hertz, with corresponding wavelengths of 3,300 to 33 meters. As with most wave phenomena, absorption decreases with decreasing frequency and infrasound propagates well in the earth's atmosphere, with geometric loss dominating other losses. This makes infrasound useful in remote monitoring activity such as the CTBT International Monitoring System (IMS). Atmospheric explosions generate a wide spectrum of acoustic frequencies; those in the audible domain are absorbed in the atmosphere and do not propagate to large distance. Lower frequency components are also present, and these do propagate to great distance. As the yield of the explosion decreases, the acoustic energy is concentrated at higher frequency than that for higher yield sources
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
Analysis of Case Records to Identify Setting Events to Challenging Behaviours in People with Learning Disabilities
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:
No full textby R.W. Ells.At head of title: Canada. Dept. of Mines. Geological Survey Branch
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