399 research outputs found

    Pioniere von den Inseln: Nationale Qualifikationsrahmen in England, Schottland und Irland

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    This article addresses the central difficulties observed in the search for consensus during the current development of a national German qualifications framework (Deutscher Qualifikationsrahmen, DQR). As well as the difficulty in blending in the German national »dual system« of vocational training with the EQF, the main difficulties identified are in certifying and accrediting skills which have been acquired informally and non-formally. To integrate lifelong learning into the traditional model of education and employment, a comprehensive, standardised accreditation and certification system would be required. However, this affects certain groups' specific interests in skills assessment. The author is a member of the DQR working group, which, on behalf of the central government and federal states, brings in relevant stakeholders to work on the development of the DQR.Die Diskussion um die richtige Gestalt eines nationalen Qualifikationsrahmens wird derzeit fast ausschließlich in der Berufsbildung gefĂŒhrt. Das ist bedauerlich, stehen doch mit dem DQR VerĂ€nderungen ins Haus, die erheblich auch die Erwachsenenbildung betreffen, wenn auch vermittelt ĂŒber den Umweg der Erfassung und Zertifizierung informell und non-formal erworbener Kompetenzen. Welche Herausforderungen sich in diesem Themenfeld lebenslangen Lernens durch den EQF stellen, erklĂ€rt Prof. Thomas Deißinger, der als Vertreter der Wissenschaft in die Bund- LĂ€nder-Beratungen zum Qualifikationsrahmen einbezogen ist. Seine Diagnose lautet: Die »Baustellen« der deutschen Bildungspolitik im Zeichen von EQF und DQR bestehen ĂŒberall dort, wo DurchlĂ€ssigkeit, ÜbergĂ€nge und Akkreditierungen erschwert oder unmöglich gemacht werden

    In Situ Characterisation of Permanent Magnetic Quadrupoles for focussing proton beams

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    High intensity laser driven proton beams are at present receiving much attention. The reasons for this are many but high on the list is the potential to produce compact accelerators. However two of the limitations of this technology is that unlike conventional nuclear RF accelerators lasers produce diverging beams with an exponential energy distribution. A number of different approaches have been attempted to monochromise these beams but it has become obvious that magnetic spectrometer technology developed over many years by nuclear physicists to transport and focus proton beams could play an important role for this purpose. This paper deals with the design and characterisation of a magnetic quadrupole system which will attempt to focus and transport laser-accelerated proton beams.Comment: 20 pages, 42 figure

    Demographic characteristics of Australian humpback dolphins reveal important habitat toward the southwestern limit of their range

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    Open Access under Creative Commons by Attribution Licence. Use, distribution and reproduction are un-restricted. Authors and original publication must be credited.ABSTRACT: The paucity of information on the recently described Australian humpback dolphin Sousa sahulensis has hindered assessment of its conservation status. Here, we applied capture-recapture models to photo-identification data collected during boat-based surveys between 2013 and 2015 to estimate the abundance, site fidelity and residence patterns of Australian humpback dolphins around the North West Cape (NWC), Western Australia. Using Pollock’s closed robust design, abundance estimates varied from 65 to 102 individuals, and POPAN open modelling yielded a super-population size of 129 individuals in the 130 km2 study area. At approximately 1 humpback dolphin per km2, this density is the highest recorded for this species. Temporary emigration was Markovian, suggesting seasonal movement in and out of the study area. Hierarchical clustering showed that 63% of individuals identified exhibited high levels of site fidelity. Analysis of lagged identification rates indicated dolphins use the study area regularly, following a movement model characterised by emigration and re-immigration. These density, site fidelity and residence patterns indicate that the NWC is an important habitat toward the southwestern limit of this species’ range. Much of the NWC study area lies within a Marine Protected Area, offering a regulatory framework on which to base the management of human activities with the potential to impact this threatened species. Our methods provide a methodological framework to be used in future environmental impact assessments, and our findings represent a baseline from which to develop long-term studies to gain a more complete understanding of Australian humpback dolphin population dynamics

    Quasiperiodicity and non-computability in tilings

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    We study tilings of the plane that combine strong properties of different nature: combinatorial and algorithmic. We prove existence of a tile set that accepts only quasiperiodic and non-recursive tilings. Our construction is based on the fixed point construction; we improve this general technique and make it enforce the property of local regularity of tilings needed for quasiperiodicity. We prove also a stronger result: any effectively closed set can be recursively transformed into a tile set so that the Turing degrees of the resulted tilings consists exactly of the upper cone based on the Turing degrees of the later.Comment: v3: the version accepted to MFCS 201

    Benefits of a marketing cooperative in transition agriculture: MĂłrakert purchasing and service co-operative

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    The paper analyses the potential benefits of marketing cooperatives in Hungary, employing a transaction cost economics framework. We found that the purchased quantity, the existence of contracts, flexibility and trust are the most important factors farmers consider when selling their products via a cooperative. The most striking result is that diversification has positive influences on the share of cooperatives in farmers’ sale. Furthermore, farmers with larger bargaining power have less willingness to sell their product to the cooperative. Surprisingly, asset specificity has rather negative effects on the share of cooperatives in members’ sales

    Opening the way to molecular cycloaddition of large molecules on supported silicene

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    Within density functional theory, the adsorption of the H2Pc molecule on the (3 × 3) silicene/(4 × 4) Ag(111) surface has been investigated. We observe an electronic redistribution in the central macrocycle of the H2Pc molecule and the formation of two Si − N covalent bonds between the molecule and the silicene, in agreement with a cycloaddition reaction. However, while on SiC(0001)(3 × 3) or Si(111)(3√×3√)R30 °-boron, the H2Pc molecule remains planar, and the H2Pc molecule takes a butterfly conformation on the silicene/Ag substrate due to an electrostatic or a polarization repulsion between the molecule and the silicene. Our study opens a way to the experimental adsorption of large organic molecules on supported silicene
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