121,864 research outputs found
One variation on Lloyd's theme
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
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
- …