103,021 research outputs found
Lesebuch für die Mittel- und Oberklassen schweizerischer Volksschulen : enthaltend den tufenmässig geordneten Lernstoff für den vereinigten Sprach- und Realunterricht
No full textTeil 2 Fünftes Schuljahrvon Gerold Eberhard und G. Gattiker ; für die Schulen des Kantons Glarus neu bearb. von Jakob Schiesse
Lesebuch für die Mittel- und Oberklassen schweizerischer Volksschulen : enthaltend den stufenmässig geordneten Lernstoff für den vereinigten Sprach- und Realunterricht
No full textvon Gerold Eberhar
Lesebuch für die Mittel- und Oberklassen schweizerischer Volksschulen : enthaltend den stufenmässig geordneten Lernstoff für den vereinigten Sprach- und Realunterricht : erster Teil
No full textvon Gerold Eberhard, Lehrer an der Mädchensekundarschule in Zürich ; [bearbeitet von] G. Gattiker, Lehrer in Zürichmit 25 Holzschnitte
The impact of the warm phase of ENSO (El Niño Southern Oscillation) events on water resource availability of tropical catchments in Central Sulawesi, Indonesia
No full textPrecipitation anomalies caused by the warm phase (El Niño) of the ENSO cycle lead to a strong decrease of water resources in South-East Asia. The aim of this work is to study the impact of warm phase ENSO caused precipitation anomalies on the water balance of a mesoscale tropical catchment in Central Sulawesi, Indonesia using a scenario analysis. We applied statistically generated precipitation anomalies caused by warm phase ENSO events on a validated hydrological model of the Palu River catchment (2694 km2) to investigate the implications of the generated ENSO scenarios on the total annual water balance, the annual discharge regime and the discharge variability. Moreover we analysed the influence of various catchment characteristics during warm phase ENSO conditions on the discharge variability through a comparison of different sub-catchment types. The results of the scenario analysis proved a severe decline of the annual discharge rate during warm phase ENSO conditions and an increase of the overall discharge variabilit
Long first metacarpal in monozygotic twins with probable Baller-Gerold syndrome
No full textCase report of 2 siblings with possible Baller Gerold syndrome and typical metacarpophalangeal profil
Analysis of land management and legal arrangements in the Ecuadorian Northeastern Amazon as preconditions for REDD+ implementation
No full textShort-term effects of an exceptionally hot and dry summer on decomposition of surface peat in a restored temperate bog
No full textThe restoration of drained peat bogs in Northwest (NW) Europe is an important task of soil protection, but needs to cope with warmer and drier summers. Our examination took place in the Pietzmoor bog (Schneverdingen, NW Germany) that had been drained for fuel peat extraction until the 1970s and rewetted since then. We determined carbon dioxide (CO2) efflux in situ and in laboratory incubations. Also, we analyzed pore water for dissolved organic carbon (DOC), total and dissolved organic N (DON), nitrate (NO3-) and ammonium, (NH4+) concentration. In Schneverdingen, the summer 2003 was record-breaking hot (mean temperature June to August elevated > 3 K compared to long-term average) and dry (precipitation during the same period 42 cm below the surface in July 2003,when in Situ Soil CO2 efflux was up to 23.4 g m(-2) d(-1) compared to 15.7 g m(-2) d(-1) in September. Prior to March 2003, DOC concentrations in pore water were < 180,mg l(-1) and NH4+ was the dominant fraction of mineral N. In July 2003, DOC concentration rose to 249 g l(-1), DON concentrations. more than doubled, and NO3- became the dominant fraction of mineral N. Due to the increased future likelihood of,hot and dry summers in NW Germany, peat bog restoration efforts need take care that a water table close to the surface is maintained. (c) 2006 Elsevier Masson SAS. All rights, reserved
Breeding goats for organic production in Germany
No full textWith only 120,000 females (year 2000), goat keeping is a niche activity in animal husbandry in Germany. Most of the goats (about 90%) are kept on part-time farms. The main reasons they are kept are as a hobby, for milk production and for landscape management; in many cases it is a non-profit oriented activity. There are estimates (no official statistics exist) that 20,000 goats are milked and 10,000 are used in landscape management to avoid shrub succession on protected biotopes. In the year 2000 10% of the goats (12,000) were kept on organic farms but not all for economic reasons.
Because the dairy breeds in Germany (White and Brown German Alpine) are selected under intensive keeping conditions, breeding under the restrictions of organic farming is necessary to get adopted and high yielding flocks. This is even more true in the case of harsh environmental conditions in landscape management. The German breeds are not suitable for the needs while grazing on marginal biotopes. This paper will show some results of:
· a ten-year breeding programme for more milk ingredients, fat and protein, in a flock of 30 mother goats on an organic farm and
· the breeding programme of the “Witzenhäuser Landschaftspflegeziege WLZ” for the new purposes of landscape management
Effect of false flax oilcake in thermophilic biogas production
No full textFalse flax oilcake has been found to be suitable for anaerobic fermentation in mixtures with cattle slurry and straw. In organic farms, digestion of cattle dung and wheat straw with 8 % dry matter content mixed with 5 % of total material weight false flax oilcake is a feasible option for utilizing false flax oilcake to produce farm-own renewable energy and offering farm-own high nitrogen (ammonia) content fertilizer (2.48 g kg-1 wet wt).
In field digesters, the biogas yield of 8 % dry matter pure material under thermophilic condition was 0.24 l g-1 VS fed. The biogas yield could be increased by mixing 5 % false flax oilcake to get 0.37 l g-1 VS fed and a VS conversion efficiency with 0.83 l g-1 VS destroyed. Under laboratory controlled conditions, the biogas yield of slurry with 0.5 % oilcake was a little higher than biogas yield of the digestion of pure material, which was 0.26 and 0.24 l g-1 VS fed, respectively. Compared with the field experiment, only small amounts of biogas were produced in the lab-scale when 5 % oilcake was mixed in. The mixing can improve the biogas yield and substrate reduction in the digesters which have sufficient material.
Further research is needed to find out the best controlled conditions (high-efficient bacteria, mixing frequency and time) and best equipment (for example: two phases digesters)
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