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    One variation on Lloyd's theme

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    One random spin-1/2 XY chain that after Jordan-Wigner fermionization reduces to the extended Lloyd's model is considered. The random-averaged one-fermion Green functions have been calculated exactly that yields thermodynamics of the spin model.Comment: 15 pages, Latex, 5 figures (in TeX format

    Results of the EISfOM project investigation into the current situation of data collection and processing

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    Conclusion - Currently few public data collection and processing systems on an international level exist with regard to the organic agriculture and food sector (however FAO, EUROSTAT, IFOAM have startes activities). - Less activities aree run to harmonise national organic data collection systems on an international level. - Investment decisions of market actors and support decisions of policy makers are taken under conditions of great uncertainty. - Organic data know-how in most countries concentrated on less and private minds. - Public demand for organic data presently often are just statements and action plan points to support organic farming in theory. - Partly the link is missing between political objectives (on national and international level) and realisation by statistic authorities. - The EU-project European Inforamtion Systems for Organic Markets will assist all national and international efforts to improve organic data collecting in next two years
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