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The ethical contract as a tool in organic animal husbandry.

This article explores what an ethic for organic animal husbandry might look like, departing from the assumption that organic farming is substantially based in ecocentric ethics. We argue that farm animals are necessary functional partners in sustainable agroecosystems. This opens up additional ways to argue for their moral standing. We suggest an ethical contract to be used as a complementary to t

Solid Oxide Fuel Cell Auxiliary Power Units for Heavy Duty Trucks

This paper explores the potentials of solid oxide fuel cells (SOFCs) as 3 kW auxiliary power units for trucks and military vehicles operating on diesel fuel. Various issues are discussed, e.g., the requirements and specifications for the unit as well as the advantages, challenges, and development issues for SOFCs in such applications. System design and analysis are carried out. The major component

External Mycelia of Mycorrhizal Fungi - responses to elevated N in forest ecosystems

Popular Abstract in Swedish De flesta växter lever i symbios med mykorrhizasvampar. I mykorrhizaroten, som utgör kontaktzonen mellan växten och den omgivande marken, sker ett utbyte av energi (kolhydrater) från växten till svampen, och näringsämnen (t.ex. kväve och fosfor) som tagits upp av mykorrhizasvampen överförs till växten. Från mykorrhizaroten utgår det externa mycelet, nätverket av svamphyMost plants live in symbiosis with mycorrhizal fungi. Mycorrhizal roots constitute the interface between the plant and the soil, and almost every fine root of forest trees in nitrogen-limited boreal and temperate forests is colonised by ectomycorrhizal (EM) fungi. The mycelia of EM and ericoid mycorrhizal (ErM) fungi are very important for plant N uptake and N cycling in forest soils. Earlier labo

High-resolution study of the C-12(gamma,p gamma')B-11 reaction using a HpGe detector to resolve excited states of B-11 through the observation of their gamma-ray decays

Relative populations of states in 11B following the 12C(,p)11B reaction have been measured with high resolution using a 70% HpGe detector to observe decay rays from the residual nucleus. The triplet of states near 7 MeV in 11B are resolved and the measured populations compared to previous data. The analysis includes a consideration of -proton angular correlations, which was not made in the previou

The appropriateness of colonoscopy: a multi-center, international, observational study

Objective. To examine the appropriateness and necessity of colonoscopy across Europe. Design. Prospective observational study. Setting. A total of 21 gastrointestinal centers from 11 countries. Participants. Consecutive patients referred for colonoscopy at each center. Intervention. Appropriateness criteria developed by the European Panel on the Appropriateness of Gastrointestinal Endoscopy, u