24 research outputs found

    Towards a territorial definition of a circular economy: exploring the role of territorial factors in closed-loop systems

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    This paper deals with the territorial dimension of a circular economy. We review the territorial factors shaping closed-loop systems, upon which a territorial definition of a circular economy is developed. We consider six categories of territorial factors: (1) Land-based factors emphasize the significance of physical endowment to satisfy the growing demand of secondary and biotic materials in a circular economy; (2) agglomeration factors are important determinants for a circular economy, as these provide circular businesses with the necessary access to resources, knowledge and collaboration, as well as viable markets; some of these functions are enabled by (3) hard territorial factors, in particular by accessibility and connectivity infrastructures as well as by (4) access to state-of-the-art technologies; softer territorial factors, including (5) knowledge-related factors and (6) governance and institutional arrangements, support collaboration among companies and between them, as well as among consumers and public institutions. Our review shows that agglomeration and land-based factors contribute to define the framework conditions of circular transformations, the harder territorial factors (accessibility and technologies) enable the circular economy in practice, and the softer factors (knowledge, awareness, governance and milieus) contribute to catalyse circular transformations. These findings base and complement research done in the ESPON CIRCTER project.This work was supported by ESPON 2020 Cooperation Programme

    Laboratory Evaluation of Flurox, a Chitin Synthesis Inhibitor, on the Termite, Microcerotermes diversus

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    Microcerotermes diversus (Silvestri) (Isoptera: Termitidae) is the most economically destructive termite in structures in southwest Iran. One sustainable control strategy that usually helps to reduce subterranean termite damage in buildings, is the use of insect growth regualtors in a suitable bait matrix that are safe to the user and the environment. In the laboratory assays described here, the delayed toxicity of Flurox, a chitin synthesis inhibitor, to M. diversus was evaluated under force-feeding and choice trials. Flurox induced worker and nymph mortality and incomplete ecdysis in nymphs of M. diversus under no-choice and two-choice feeding tests. These adverse effects may cause disruption of the caste balance in M. diversus, leading to the collapse of the colony. These assays determined concentrations of Flurox that can be used in bait formulations

    Erfahrungen mit medikament�ser Ovulationsausl�sung

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    Insektenhormone als nicht-neurotoxische Insektizide fuer den Einsatz in Holzschutzmitteln Abschlussbericht

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    SIGLEAvailable from TIB Hannover: F04B303 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekDeutsche Bundesstiftung Umwelt, Osnabrueck (Germany)DEGerman

    Biotechnologische Verwertung und Entsorgung von cellulytischen und lignocellolytischen Abfaellen. Teilvorhaben 5: Verfahrensentwicklung zur biologischen Holzimpraegnierung

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    SIGLEAvailable from TIB Hannover: F97B1936+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman

    How to Protect Free Flowing Rivers: The Bita River Ramsar Site as an Example of Science and Management Tools Working Together

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    The Orinoco river basin is the third largest river in the world by volume. Its catchment encompasses 27 major sub-basins including the Bita with a catchment area of about 825,000 ha, which originates in the Colombian high plains in the Llanos ecoregion. It has been recognized as a priority area for conservation through different gap analyses and overall determined to have good health according to the Orinoco report card 2016. The natural climate and hydrologic processes, and their synergies with flooded forests, savannas, wetlands, species diversity and local economic activities, are part of a dynamic and sensitive system. With the purpose of conserving the ecological, social and cultural benefits that it brings, the Colombian Government, with the support of regional and local civil society organizations, promoted the designation of a conservation area. Technical exercises were carried out including biological and socioeconomic surveys, local stakeholder consultations and future scenario modeling. In June 2018, the Bita River basin was designated as the largest Ramsar site in Colombia, providing a worldwide example of explicit protection of riverine systems. In order to maintain this free-flowing river, land use and fisheries management, in conjunction with other conservation actions, are being implemented and provide a model of protection for freshwater ecosystems that could be replicated elsewhere
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