104 research outputs found

    Organic Action Plans. Development, implementation and evaluation. A resource manual for the organic food and farming sector

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    In 2004, the European Action Plan for Organic Food and Farming was launched. Many European countries have also developed national Organic Action Plans to promote and support organic agriculture. As part of the EU funded ORGAP project (“European Action Plan of Organic Food and Farming - Development of criteria and procedures for the evaluation of the EU Action Plan for Organic Agriculture”) a toolbox to evaluate and monitor the implementation of national and European Action Plans has been developed. In order to communicate the results of this project as widely as possible, a practical manual for initiating and evaluating Organic Action Plans has been produced. This manual has been created to inspire the people, organisations and institutions involved, or with an interest, in the organic food and farming sector to engage in the initiation, review, revision and renewal of regional, national and European Organic Action Plans. The objectives of the manual are to provide: ‱ a tool for stakeholder involvement in future Action Plan development and implementation processes at EU, national and regional level ‱ a guide to the use of the Organic Action Plan Evaluation Toolbox (ORGAPET) developed through the project The manual summarises the key lessons learnt from more than 10 years experience of development, implementation and evaluation of Organic Action Plans throughout Europe. The Organic Action Plan Evaluation Toolbox (ORGAPET), which includes comprehensive information to support the Organic Action Plan development and evaluation process is included with the manual as a CD-ROM, and is also accessible on-line at www.orgap.org/orgapet. The ORGAP website www.orgap.org provides a further information on the project and the European and national organic action plans. Published by: Research Institute of Organic Agriculture (FiBL), Frick, Switzerland; IFOAM EU Group, Brussels Table of contents Foreword 1 1 Introduction 3 1.1 About this manual 3 1.2 Organic farming – origins, definition & principles 6 1.3 Development of organic food & farming in Europe 8 1.3.1 Organic food and farming regulation in Europe 10 1.3.2 Policy support for organic food and farming in Europe 11 2 Organic Action Plans – what are they about? 16 2.1 Why Organic Action Plans? 16 2.2 European Organic Action Plan 21 2.3 Overview of national and regional Organic Action Plans 23 3 Planning and implementing Organic Action Plans 28 3.1 Policy development 28 3.2 Defining organic sector development needs and potential 31 3.3 Defining policy goals and objectives 34 3.4 Involving stakeholders 40 3.4.1 The case for stakeholder involvement 40 3.4.2 Identifying relevant stakeholders 42 3.4.3 Participatory approaches for stakeholders involvement 44 3.5 Decision making: selecting, integrating and prioritising relevant measures 46 3.5.1 Deciding on policy instruments and action points 47 3.5.2 Priorities for action – allocating resources 50 3.6 Implementing Organic Action Plans 52 3.7 Including monitoring and evaluation of Organic Action Plans from outset 56 3.8 Managing communication 58 3.9 Development of Action Plans in countries that joined the EU in 2004 and later 59 4 Evaluating Organic Action Plans 61 4.1 Principles of evaluation 61 4.2 Conducting an evaluation 64 4.3 Evaluating Action Plan design and implementation 70 4.3.1 Evaluating programme design and implementation processes 70 4.3.2 Evaluating programme coherence 72 4.3.3 Evaluating stakeholder involvement 74 4.4 Evaluating Action Plan effects 78 4.4.1 Developing and using indicators for evaluation 78 4.5 Overall evaluation of Organic Action Plans – judging success 85 4.6 Evaluating Action Plans in countries that joined the EU in 2004 and later 89 5 Organic Action Plans – the Golden Rules 91 5.1 Key elements of Organic Action Plan development 91 5.2 The Golden rules for Organic Action Plan 93 References 96 Annex Detailed synopsis of ORGAPET 10

    Features of “All LNA” Duplexes Showing a New Type of Nucleic Acid Geometry

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    “Locked nucleic acids” (LNAs) belong to the backbone-modified nucleic acid family. The 2â€Č-O,4â€Č-C-methylene-ÎČ-D-ribofuranose nucleotides are used for single or multiple substitutions in RNA molecules and thereby introduce enhanced bio- and thermostability. This renders LNAs powerful tools for diagnostic and therapeutic applications. RNA molecules maintain the overall canonical A-type conformation upon substitution of single or multiple residues/nucleotides by LNA monomers. The structures of “all” LNA homoduplexes, however, exhibit significant differences in their overall geometry, in particular a decreased twist, roll and propeller twist. This results in a widening of the major groove, a decrease in helical winding, and an enlarged helical pitch. Therefore, the LNA duplex structure can no longer be described as a canonical A-type RNA geometry but can rather be brought into proximity to other backbone-modified nucleic acids, like glycol nucleic acids or peptide nucleic acids. LNA-modified nucleic acids provide thus structural and functional features that may be successfully exploited for future application in biotechnology and drug discovery

    temporary implementation and testing of a confocal sr ÎŒxrf system for bone analysis at the x ray fluorescence beamline at elettra

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    Abstract The confocal ÎŒ XRF spectrometer of Atominstitut (ATI) was transported and set up at the X-ray Fluorescence beamline at Elettra - Sincrotrone Trieste. It was successfully adjusted to the incoming beam (9.2 keV). Test measurements on a free-standing Cu wire were performed to determine the size of the focused micro-beam (non-confocal mode, 56 × 35 ÎŒ m 2 ) and the size of the confocal volume (confocal mode, 41 × 24 × 34 ÎŒ m 2 ) for the Cu–K α emission. In order to test the setup's capabilities, two areas on different human bone samples were measured in confocal scanning mode. For one of the samples the comparison with a previous ÎŒ XRF measurement, obtained with a low power X-ray tube in the lab, is presented

    Absorption and mobility of foliar-applied boron in soybean as affected by plant boron status and application as a polyol complex

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    In the present study (i) the impact of plant Boron (B) status on foliar B absorption and (ii) the effect of B complexation with polyols (sorbitol or mannitol) on B absorption and translocation was investigated. Soybean (Glycine max (L.) Meer.) plants grown in nutrient solution containing 0 ÎŒM, 10 ÎŒM, 30 ÎŒM or 100 ÎŒM 11B labelled boric acid (BA) were treated with 50 mM 10B labelled BA applied to the basal parts of two leaflets of one leaf, either pure or in combination with 500 mM sorbitol or mannitol. After one week, 10B concentrations in different plant parts were determined. In B deficient leaves (0 ÎŒM 11B), 10B absorption was significantly lower than in all other treatments (9.7% of the applied dose vs. 26%–32%). The application of BA in combination with polyols increased absorption by 18–25% as compared to pure BA. The absolute amount of applied 10B moving out of the application zone was lowest in plants with 0 ÎŒM 11B supply (1.1% of the applied dose) and highest in those grown in 100 ÎŒM 11B (2.8%). The presence of sorbitol significantly decreased the share of mobile 10B in relation to the amount absorbed. The results suggest that 11B deficiency reduces the permeability of the leaf surface for BA. The addition of polyols may increase 10B absorption, but did not improve 10B distribution within the plant, which was even hindered when applied a sorbitol complex

    Foliar lead uptake by lettuce exposed to atmospheric fallouts

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    Metal uptake by plants occurs by soil−root transfer but also by direct transfer of contaminants from the atmosphere to the shoots. This second pathway may be particularly important in kitchen gardens near industrial plants. The mechanisms of foliar uptake of lead by lettuce (Lactuca sativa) exposed to the atmospheric fallouts of a lead-recycling plant were studied. After 43 days of exposure, the thoroughly washed leaves contained 335 ± 50 mg Pb kg−1 (dry weight). Micro-X-ray fluorescence mappings evidenced Pb-rich spots of a few hundreds of micrometers in diameter located in necrotic zones. These spots were more abundant at the base of the central nervure. Environmental scanning electron microscopy coupled with energy dispersive X-ray microanalysis showed that smaller particles (a few micrometers in diameter) were also present in other regions of the leaves, often located beneath the leaf surface. In addition, submicrometric particles were observed inside stomatal openings. Raman microspectrometry analyses of the leaves identified smelter-originated Pb minerals but also secondary phases likely resulting from the weathering of original particles. On the basis of these observations, several pathways for foliar lead uptake are discussed. A better understanding of these mechanisms may be of interest for risk assessment of population exposure to atmospheric metal contamination

    Plans d’action pour l’agriculture biologique. DĂ©veloppement, mise en Ɠuvre et Ă©valuation. Un manuel de ressources pour le secteur de l’alimentation et de l’agriculture biologiques

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    Avant-propos La Commission europĂ©enne a publiĂ© en juin 2004 le Plan d’action europĂ©en pour l’alimentation et l’agriculture biologiques. Avec ce plan, la Commission visait Ă  Ă©valuer la situation de l’agriculture biologique et Ă  fonder les bases de dĂ©veloppement de sa politique future. Au niveau national, de nombreux gouvernements ont Ă©galement dĂ©veloppĂ© des plans d’action pour promouvoir l’agriculture biologique. Il est donc apparu nĂ©cessaire de considĂ©rer comment de tels plans d’action pouvaient ĂȘtre Ă©valuĂ©s avec succĂšs. Le plan d’action europĂ©en a Ă©tĂ© la motivation principale pour la DG Recherche de la Commission europĂ©enne de financer un projet de soutien spĂ©cifique, l’ORGAP, Projet No. CT-2005-006591 au sein du 6Ăšme programme-cadre de recherche. Ce projet, intitulĂ© “Plan d’action europĂ©en pour l’alimentation et l’agriculture biologiques – dĂ©veloppement de critĂšres et de procĂ©dures d’évaluation du Plan d’action UE pour l’agriculture biologique”, a dĂ©butĂ© en mai 2005 et s’est terminĂ© en avril 2008. Des outils ont Ă©tĂ© dĂ©veloppĂ©s au sein du projet pour Ă©valuer et surveiller la mise en Ɠuvre du Plan d’action europĂ©en dans les domaines suivants : information, formation et pĂ©dagogie, recherche, production, traitement, dĂ©veloppement du marchĂ©, certification et dĂ©penses publiques. Ces outils ont Ă©tĂ© testĂ©s sur un Ă©chantillon de Plans d’action nationaux existants, et pour partie aussi sur le Plan d’action europĂ©en, en plaçant principalement l’accent sur les processus de mise en Ɠuvre. En outre, des recommandations politiques de la Commission europĂ©enne, des autoritĂ©s nationales et autres acteurs ont Ă©tĂ© Ă©mises. Afin de communiquer les recommandations relatives Ă  ce projet aussi largement que possible, ce manuel pratique d’initiation et d’évaluation des plans d’action a Ă©tĂ© crĂ©Ă©. La fonction de ce manuel est double : a) Outil de participation des acteurs dans le dĂ©veloppement de futurs plans et mise en Ɠuvre au niveau UE, national et rĂ©gional ; b) Guide d’utilisation d’ORGAPET, des outils d’évaluation du projet ORGAP (fourni sur CD-ROM avec le manuel et disponible en ligne sur le site www.orgap.org). Le manuel, crĂ©Ă© dans le cadre du projet ORGAP, est largement basĂ© sur les documents inclus dans l’Organic Action Plan Évaluation Toolbox (Outils d’évaluation du plan d’action biologique) (ORGAPET). Les institutions suivantes ont contribuĂ© au dĂ©veloppement d’ORGAPET et du manuel : - UniversitĂ© de Hohenheim (UHO), Stuttgart (Prof. Stephan Dabbert, Christian Eichert) ; - Aberystwyth University (UWA), Pays de Galles, Grande-Bretagne (Dr. Nic Lampkin, Ian Jeffreys) ; - Polytechnic University of Marche, Ancona (UNIVPM), Italie (Prof. Raffaele Zanoli, Dr. Daniela Vairo) ; - University of Southern Denmark (USD), Danemark (Dr. Johannes Michelsen)

    The crystal structure of an ‘All Locked’ nucleic acid duplex

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    ‘Locked nucleic acids’ (LNAs) are known to introduce enhanced bio- and thermostability into natural nucleic acids rendering them powerful tools for diagnostic and therapeutic applications. We present the 1.9 Å X-ray structure of an ‘all LNA’ duplex containing exclusively modified ÎČ-d-2â€Č-O-4â€ČC-methylene ribofuranose nucleotides. The helix illustrates a new type of nucleic acid geometry that contributes to the understanding of the enhanced thermostability of LNA duplexes. A notable decrease of several local and overall helical parameters like twist, roll and propeller twist influence the structure of the LNA helix and result in a widening of the major groove, a decrease in helical winding and an enlarged helical pitch. A detailed structural comparison to the previously solved RNA crystal structure with the corresponding base pair sequence underlines the differences in conformation. The surrounding water network of the RNA and the LNA helix shows a similar hydration pattern

    Interaction between a bisphosphonate, tiludronate, and biomimetic nanocrystalline apatites.

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    Bisphosphonates (BPs) are well established as successful antiresorptive agents for the prevention and treatment of bone diseases such as osteoporosis and Paget's disease. The aim of this work was to clarify the reaction mechanisms between a BP molecule, tiludronate, and the nanocrystalline apatite surface. The adsorption of tiludronate on well characterized synthetic biomimetic nanocrystalline apatites with homogeneous but different compositions and surface characteristics was investigated to determine the effect of the nanocrystalline apatite substrate on the adsorption behavior. The results show that the adsorption of tiludronate on nanocrystalline biomimetic apatite surfaces varies over a large range. The most immature apatitic samples exhibited the highest affinity and the greatest amount adsorbed at saturation. Maturation of the nanocrystals induces a decrease of these values. The amount of phosphate ion released per adsorbed BP molecule varied, depending on the nanocrystalline substrate considered. The adsorption mechanism, although associated with a release of phosphate ions, cannot be considered as a simple ion exchange process involving one or two phosphate ions on the surface. A two-step process is proposed consisting of a surface binding of BP groups to calcium ions associated with a proton release inducing the protonation of surface orthophosphate ions and their eventual solubilization

    Reassessing associations between white matter and behaviour with multimodal microstructural imaging

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    Several studies have established specific relationships between White Matter (WM) and behaviour. However, these studies have typically focussed on fractional anisotropy (FA), a neuroimaging metric that is sensitive to multiple tissue properties, making it difficult to identify what biological aspects of WM may drive such relationships. Here, we carry out a pre-registered assessment of WM-behaviour relationships in 50 healthy individuals across multiple behavioural and anatomical domains, and complementing FA with myelin-sensitive quantitative MR modalities (MT, R1, R2∗). Surprisingly, we only find support for predicted relationships between FA and behaviour in one of three pre-registered tests. For one behavioural domain, where we failed to detect an FA-behaviour correlation, we instead find evidence for a correlation between behaviour and R1. This hints that multimodal approaches are able to identify a wider range of WM-behaviour relationships than focusing on FA alone. To test whether a common biological substrate such as myelin underlies WM-behaviour relationships, we then ran joint multimodal analyses, combining across all MRI parameters considered. No significant multimodal signatures were found and power analyses suggested that sample sizes of 40-200 may be required to detect such joint multimodal effects, depending on the task being considered. These results demonstrate that FA-behaviour relationships from the literature can be replicated, but may not be easily generalisable across domains. Instead, multimodal microstructural imaging may be best placed to detect a wider range of WM-behaviour relationships, as different MRI modalities provide distinct biological sensitivities. Our findings highlight a broad heterogeneity in WM's relationship with behaviour, suggesting that variable biological effects may be shaping their interaction

    Study of ultrathin Pt/Co/Pt trilayers modified by nanosecond XUV pulses from laser-driven plasma source

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    We have studied the structural mechanisms responsible for the magnetic reorientation between in-plane and out-of-plane magnetization in the (25 nm Pt)/(3 and 10 nm Co)/(3 nm Pt) trilayer systems irradiated with nanosecond XUV pulses generated with laser-driven gas-puff target plasma source of a narrow continuous spectrum peaked at wavelength of 11 nm. The thickness of individual layers, their density, chemical composition and irradiation-induced lateral strain were deduced from symmetric and asymmetric X-ray diffraction (XRD) patterns, grazing-incidence X-ray reflectometry (GIXR), grazing incidence X-ray fluorescence (GIXRF), extended X-ray absorption fine structure (EXAFS) and transmission electron microscopy (TEM) measurements. In the as grown samples we found, that the Pt buffer layers are relaxed and that the layer interfaces are sharp. As a result of a quasi-uniform irradiation of the samples, the XRD, EXAFS, GIXR and GIXRF data reveal the formation of two distinct layers composed of Pt1-xCox alloys with different Co concentrations, dependent on the thickness of the as grown magnetic Co film but with similar ∌1% lateral tensile residual strain. For smaller exposure dose (lower number of accumulated pulses) only partial interdiffusion at the interfaces takes place with the formation of a tri-layer composed of Co-Pt alloy sandwiched between thinned Pt layers, as revealed by TEM. The structural modifications are accompanied by magnetization changes, evidenced by means of magneto-optical microscopy. The difference in magnetic properties of the irradiated samples can be related to their modification in Pt1-xCox alloy composition, as the other parameters (lateral strain and alloy thickness) remain almost unchanged. The out-of-plane magnetization observed for the sample with initially 3 nm Co layer can be due to a significant reduction of demagnetization factor resulting from a lower Co concentration
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