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| Registros recuperados: 16.191 | |
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| Ofwegen, L.P. van; Groenenberg, D.S.J.. |
| The current centuries old classification of the family Nephtheidae is still mostly based on colony morphology. In this family the Indo-Pacifc genera Litophyton, Nephthea, Dendronephthya and Stereonephthya, and the Atlantic genus Neospongodes form a complex mix of closely related, poorly described species which cannot be recognized using only colony morphology. Attempts with the more modern approach of comparing skeleton composition (sclerites) have been only partly successful because of the extreme variation of sclerite forms present in these genera. The genus Chromonephthea Van Ofwegen, 2005, introduced for several species previously assigned to Dendronephthya, Nephthea and Stereonephthya, was established with sclerite morphology, but the true generic... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Soft corals; Octocorallia; Nephtheidae; Dendronephthya; Litophyton; Neospongodes; Nephthea; Stereonephthya; Taxonomy; Internal transcribed spacer I and II; Indo-Pacific; 42.72. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/256122 |
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| Kuster, Robert; Ellersdorfer, Ingo; Fahl, Ulrich. |
| The paper establishes a CGE/MPSGE model for evaluating energy policy measures with emphasis on their employment impacts. It specifies a dual labor market with respect to qualification, two different mechanisms for skill specific unemployment, and a technology detailed description of electricity generation. Non clearing of the dual labor market is modeled via minimum wage constraints and via wage curves. The model is exemplarily applied for the analysis of capital subsidies on the application of technologies using renewable energy sources. Quantitative results highlight that subsidies on these technologies do not automatically lead to a significant reduction in emissions. Moreover, if emission reductions are achieved these might actually partly result from... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2007 |
URL: http://purl.umn.edu/12035 |
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| Hu, Wuyang. |
| This article introduces a discrete choice model which incorporates a nonlinear structural adjustment to the standard utility coefficients or decision weights. The proposed model is theoretically and empirically appealing when compared to several alternative approaches, and it can be estimated by conventional maximum likelihood. Application of the proposed model in a case study shows that it outperforms two competing approaches in model fit. Given its simplicity, this model is also capable of revealing consumers' heterogeneous choices. It is shown that based on consumers' different characteristics, their product choice and its welfare implications are also potentially different. |
| Tipo: Journal Article |
Palavras-chave: Logit models; Stated choice; Structural adjustment; Weights; Demand and Price Analysis. |
| Ano: 2007 |
URL: http://purl.umn.edu/7076 |
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| Paull, John. |
| The Australian National Standard for Organic and Bio-Dynamic Produce was first issued in 1992, and revised editions have appeared in 1998, 2002 and 2007. It is an export standard and serves as a de facto domestic standard. It is currently freely available for download. There is a proposaal that the copyright residing in organic standards in Australia be relinquished to a private company which licences and profits from the sale of standards. This article questions this standards-for-sale model and asks whether the community and the organic cause are better served by the standard remaining as an Open Access document, rather than a pay-per-view document. |
| Tipo: Newspaper or magazine article |
Palavras-chave: Australia Knowledge management Values; Standards and certification. |
| Ano: 2007 |
URL: http://orgprints.org/13093/1/13093.pdf |
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| Denis Tweddle; Eric Anderson. |
| Collections of fishes from demersal trawl surveys to 800 m depth off the Angolan coast in 2001, 2002 and 2005 resulted in several range extensions tabulated here. Specimens of species poorly represented in previous collections allowed improved diagnoses of Myxine ios, Torpedo bauchotae, Dysommina rugosa, Pisodonophis semicinctus, Xenomystax congroides, Lestidiops cadenati, Ophidion lozanoi, Cataetyx bruuni, Dibranchus atlanticus, Diceratias pileatus, Himantolophus paucifilosus, Neomerinthe folgori, Careproctus albescens, Paracaristius maderensis and Pachycara crossacanthum. All specimens accessioned into the Fish Collection of the South African Institute for Aquatic Biodiversity are listed and colour plates show a selection of species from the trawl catches |
| Tipo: Journal Contribution |
Palavras-chave: Demersal fish; Trawls; Fish species; Marine fish. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/5148 |
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| Brasili, Cristina; Fanfani, Roberto; Maccarini, Elisa Ricci; Monasterolo, Irene. |
| In the last years, a lot of important changes occurred inside the European Union after the entering of 12 new member States. The rate of economic growth of the new member States has been higher the other EU members. In Hungary, particularly, the growth level has reached an intermediate position, placing itself at 4% GDP per capita. Comparative analysis are needed to better understand the process of catching-up and to evaluate how the integration between EU regions and countries is going on. The aim of this paper is to compare the economic and efficiency performance of firms in Hungary and Emilia-Romagna, considering a specific sector, meat processing and storage, of the food industry). We will investigate if in the last years the integration process has... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Firms financial-economic performances; Stochastic production function; Agri-food districts; Meat processing industry; Hungarian and Emilia-Romagna food industry; Livestock Production/Industries. |
| Ano: 2007 |
URL: http://purl.umn.edu/7845 |
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| Canavari, Maurizio; Ghelfi, Rino; Olson, Kent D.; Rivaroli, Sergio. |
| Recent discussion surrounding organic agriculture (also referred to as organic farming) has turned from just whether it represents a viable alternative to conventional agriculture to whether it would be adopted by a significant percentage of farmers. After a beginning phase in which the adoption was mainly due to an ethically based choice of the farmer, the success in the market and the increasing demand for organic products are increasing the number of farmers converting their farming system. Despite the continuing importance of non-economic factors and the uncertainty given by short-term and mid-term fluctuations of prices, a decisive point is whether the conversion to organic farming may be worthwhile from an economic perspective. The aim of the paper... |
| Tipo: Book chapter |
Palavras-chave: Farm economics. |
| Ano: 2007 |
URL: http://orgprints.org/12108/1/978%2D0%2D387%2D39581%2D4_BookPDF1_03Rivaroli.pdf |
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| Registros recuperados: 16.191 | |
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