9,397 research outputs found
Grazing and management of saltland shrubs
areas of bare saltland on farms need not be unproductive etesores. Many Western Australian farmers are now successfully growing salt-tolerant or halophytic shrubs such as bluebush (Maireana brevifolia), saltbushes (Atriplex spp.) and samphires (Halosarcia spp.) on these areas.
Department of agriculture trials and farmers\u27 experience indicate that if saltland is planted with recommended shrubs, it can provide two months\u27 valuable grazing for sheep during autumn and early winter, a time when paddock feed is scarce. Research by the Department has also identified a range of salt-tolerant shrubs suited to the various types of saltland.
Grazing trials to determine the value of salt-tolerant shrub pasture for sheep started at Wickepin and Kondut in the 1970s and the early results were reported in this Journal in 1982 (Clarke, 1982). The Kondut trial has been continued and the results from six years\u27 grazing are discussed here. This article also contains additional information from the large grazed plots on farms and from farmers experienced in management and use osd saltland shrub pastures
Torsion models for tensor-triangulated categories: the one-step case
Given a suitable stable monoidal model category and a
specialization closed subset of its Balmer spectrum one can produce a Tate
square for decomposing objects into the part supported over and the part
supported over spliced with the Tate object. Using this one can show that
is Quillen equivalent to a model built from the data of local
torsion objects, and the splicing data lies in a rather rich category. As an
application, we promote the torsion model for the homotopy category of rational
circle-equivariant spectra from [18] to a Quillen equivalence. In addition, a
close analysis of the one step case highlights important features needed for
general torsion models which we will return to in future work.Comment: 35 pages, minor changes in the introductio
Phase behaviour of binary mixtures of diamagnetic colloidal platelets in an external magnetic field
Using fundamental measure density functional theory we investigate
paranematic-nematic and nematic-nematic phase coexistence in binary mixtures of
circular platelets with vanishing thicknesses. An external magnetic field
induces uniaxial alignment and acts on the platelets with a strength that is
taken to scale with the platelet area. At particle diameter ratio lambda=1.5
the system displays paranematic-nematic coexistence. For lambda=2, demixing
into two nematic states with different compositions also occurs, between an
upper critical point and a paranematic-nematic-nematic triple point. Increasing
the field strength leads to shrinking of the coexistence regions. At high
enough field strength a closed loop of immiscibility is induced and phase
coexistence vanishes at a double critical point above which the system is
homogeneously nematic. For lambda=2.5, besides paranematic-nematic coexistence,
there is nematic-nematic coexistence which persists and hence does not end in a
critical point. The partial orientational order parameters along the binodals
vary strongly with composition and connect smoothly for each species when
closed loops of immiscibility are present in the corresponding phase diagram.Comment: 9 pages, to appear in J.Phys:Condensed Matte
School health in Europe:a review of workforce expenditure across five countries
Background: Most European countries have implemented a form of school health services (SHS) to provide young children and adolescents with various types of healthcare. No estimations on SHS expenditure for European countries have been published until now. We estimated SHS workforce expenditure in Europe, expected to serve as the main driver of school healthcare costs. Methods: Using two networks of experts on healthcare provision for children we contacted various country representatives to provide data on the number of professionals working in SHS and salaries. These data were used, together with publicly available data, to estimate annual SHS workforce expenditure on the national level. Results: We received sufficient data for five European countries, and estimated the SHS workforce expenditure. Nurses were the most widely reported professionals working in this field, followed by doctors and psychologists. Our SHS expenditure estimations ranged from 43,000 for Estonia to 195,300 in Norway (per 1000 pupils). For Norway, Estonia, Finland and Iceland, school nurses were the main drivers of SHS expenditure, mainly due to their large numbers, while in Austria, school doctors played the largest role in SHS expenditure. Conclusions: We estimated the spending on SHS workforce for five European countries, which comprises relatively minor parts of total healthcare spending (0.16 to 0.69%). Many questions regarding SHS spending in Europe remain, due to a general lack of data on national levels
The Effects of Dried Distillers Grains on Heifers Consuming Low or High Quality Forage
Two forage sources, high and low quality, were used to evaluate effects of five levels of dried distillers grains on forage intake. Ninety heifer calves were fed high or low quality forage, supplemented with 0, 1.5, 3, 4.5, or 6 lb DM dried distillers grains. Forage intakes linearly decreased as dried distillers grains increased. Average daily gain increased linearly with increased dried distillers grains indicating that dried distillers grains can be a protein and energy supplement source and a substitute for forage. Dried distillers grains are an economical supplement to cattle on either high or low quality forage diets
The Effects of Dried Distillers Grains on Heifers Consuming Low or High Quality Forage
Two forage sources, high and low quality, were used to evaluate effects of five levels of dried distillers grains on forage intake. Ninety heifer calves were fed high or low quality forage, supplemented with 0, 1.5, 3, 4.5, or 6 lb DM dried distillers grains. Forage intakes linearly decreased as dried distillers grains increased. Average daily gain increased linearly with increased dried distillers grains indicating that dried distillers grains can be a protein and energy supplement source and a substitute for forage. Dried distillers grains are an economical supplement to cattle on either high or low quality forage diets
Same but different: A typology of Voting Advice Application users in first-and second-order elections
Issue framing in online voting advice applications: The effect of left-wing and right-wing headers on reported attitudes
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