1,657 research outputs found

    Was bringt's? : ein Projekt der Nachhaltigkeitskommunikation verspricht mehr Wirkung in der Umweltbildung

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    Umweltbildner sehen sich vermehrt mit der Frage konfrontiert, was ihre Arbeit bringt. So verlangen beispielsweise Geldgeber, meist Stiftungen oder die öffentliche Hand, immer häufiger Nachweise zur Wirkung ihrer Investitionen. Die vier grossen Anbieter von Umweltweiterbildungen in der Schweiz – Pusch, Sanu, SILVIVA und der WWF – haben sich zusammen mit dem IUNR auf den Weg gemacht, Antworten zu erarbeiten

    Schlussevaluation Wirkungsverstärkung Umweltunterricht

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    Praktischer Umweltschutz Schweiz Pusch bietet an den Volksschulen der Deutschschweiz Umweltunterricht zu den drei Themenbereichen Abfall und Konsum, Energie und Klima sowie Wasser an. Im Rahmen des Projekts «Wirkungsverstärkung Pusch Schulbesuche» überarbeitete Pusch den Umweltunterricht, um mehr Wirkung zu erzielen und unter anderem mess- und sichtbare Umwelthandlungen bei den Schülerinnen und Schülern (SuS) auszulösen. Die Forschungsgruppe Nachhaltigkeitskommunikation der ZHAW unterstützte die Wirkungsorientierungen und evaluierte die Wirkung des Umweltunterrichts. In dieser Schlussevaluation wurden Schulbesuche zwischen dem 15. August und dem 8. Dezember 2017 berücksichtigt. Über alle Unterrichtsstufen konnte eine beeindruckende Wirkung der drei Umweltunterrichtsarten festgestellt werden. Bezogen auf die SuS ist hervorzuheben, dass die Handlungsziele durchwegs erreicht werden konnten. Beispielsweise konnten über 30% der SuS durch Pusch zu konkreten Umwelthandlungen angestossen werden

    Éducation à l‘environnement et efficacité : un outil de travail

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    Au fil des ans, l’éducation à l’environnement a acquis une grande expérience pratique et la qualité des offres est élevée. Avec la diminution des ressources, l’accent est désormais mis davantage sur l’efficacité. La brochure « Éducation à l‘environnement et efficacité » est conçue pour vous aider à identifier, améliorer et mesurer l’efficacité de vos offres de formation

    Umweltbildung mit Wirkung : eine Arbeitshilfe

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    Umweltbildung hat über die Jahre viel Praxiserfahrung aufgebaut, die Qualität der Angebote ist hoch. Mit knapper werdenden Ressourcen rückt nun vermehrt die Wirkung der Umweltbildung ins Blickfeld. Mit einer Arbeitshilfe werden Anbietende dabei unterstützt, die Wirkung Ihrer Angebote benennen zu können, zu steigern und zu messen

    Classical biological control: exploiting enemy escape to manage plant invasions

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    Practitioners of classical biological control of invasive weeds are confronted with a dual expectation: to achieve successful control of plant invaders and to avoid damage to nontarget plants and adverse indirect effects. In this paper we discuss key issues that we consider to be crucial for a safe, efficient, and successful classical biological control project, and that have also caused some recent controversy. These include selection of effective control agents, host specificity of the biological control agents, implications of the genetic population structure of the target populations, and potential impact on native food webs. With regard to improving the success rate of biological control of plant invaders, we first emphasize the importance of a clear a priori definition of success and a more ecosystem-based approach to better document both negative effects of the invasive plant as well as potential positive and negative effects of introducing biological control agents. Secondly, pre-release impact assessment could be improved by better focusing on how to reach high densities of the control agents and by including tolerance to and compensation of herbivory. Thirdly, we advocate a reinforced effort to integrate and combine biological control in combination with existing or potential management options. Finally, we propose various ecological and evolutionary hypotheses in the framework of our topic to document that biological control programmes against plant invaders also offer a great opportunity to gain new insights into basic processes in ecology and evolution

    Classical biological control: exploiting enemy escape to manage plant invasions

    Get PDF
    Practitioners of classical biological control of invasive weeds are confronted with a dual expectation: to achieve successful control of plant invaders and to avoid damage to nontarget plants and adverse indirect effects. In this paper we discuss key issues that we consider to be crucial for a safe, efficient, and successful classical biological control project, and that have also caused some recent controversy. These include selection of effective control agents, host specificity of the biological control agents, implications of the genetic population structure of the target populations, and potential impact on native food webs. With regard to improving the success rate of biological control of plant invaders, we first emphasize the importance of a clear a priori definition of success and a more ecosystem-based approach to better document both negative effects of the invasive plant as well as potential positive and negative effects of introducing biological control agents. Secondly, pre-release impact assessment could be improved by better focusing on how to reach high densities of the control agents and by including tolerance to and compensation of herbivory. Thirdly, we advocate a reinforced effort to integrate and combine biological control in combination with existing or potential management options. Finally, we propose various ecological and evolutionary hypotheses in the framework of our topic to document that biological control programmes against plant invaders also offer a great opportunity to gain new insights into basic processes in ecology and evolutio

    Back related outcome assessment instruments

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    A literature review of the most widely used condition specific, self administered assessment questionnaires for low back pain had been undertaken. General and historic aspects, reliability, responsiveness and minimum clinically important difference, external validity, floor and ceiling effects, and available languages were analysed. These criteria, however, are only part of the consideration. Of similar importance are the content, wording of questions and answers in each of the six questionnaires and an analysis of the different score results. The issue of score bias is discussed and suggestions are given in order to increase the construct validity in the practical use of the individual questionnaire

    Software Grand Exposure: SGX Cache Attacks Are Practical

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    Side-channel information leakage is a known limitation of SGX. Researchers have demonstrated that secret-dependent information can be extracted from enclave execution through page-fault access patterns. Consequently, various recent research efforts are actively seeking countermeasures to SGX side-channel attacks. It is widely assumed that SGX may be vulnerable to other side channels, such as cache access pattern monitoring, as well. However, prior to our work, the practicality and the extent of such information leakage was not studied. In this paper we demonstrate that cache-based attacks are indeed a serious threat to the confidentiality of SGX-protected programs. Our goal was to design an attack that is hard to mitigate using known defenses, and therefore we mount our attack without interrupting enclave execution. This approach has major technical challenges, since the existing cache monitoring techniques experience significant noise if the victim process is not interrupted. We designed and implemented novel attack techniques to reduce this noise by leveraging the capabilities of the privileged adversary. Our attacks are able to recover confidential information from SGX enclaves, which we illustrate in two example cases: extraction of an entire RSA-2048 key during RSA decryption, and detection of specific human genome sequences during genomic indexing. We show that our attacks are more effective than previous cache attacks and harder to mitigate than previous SGX side-channel attacks
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