1,900 research outputs found
The Winners' Choice: Sustainable Economic Strategies for Successful 21st Century Regions
Throughout the second half of the 20th Century, urbanization, new technologies, rapid labor-saving productivity growth in primary industries, and improved highways combined to create large-scale rural-urban functionally integrated regions. These forces have raised the stakes for regions in their pursuit of economic development and growth, making successful regional policy even more important. Changes to the governance structures consistent with the increased interdependence within broad rural-urban regions will improve the region's competitiveness; adopting fad-based approaches and policies aimed at “picking winners†will be less fruitful. Going forward, continuing globalization and environmental sustainability have the potential to fundamentally reshape relative regional attractiveness.
The Winner's Choice: Sustainable Economic Strategies for Successful 21st Century Regions
Throughout the second half of the 20th Century, urbanization, new technologies, rapid labor-saving productivity growth in primary industries, and improved highways combined to create large-scale rural-urban functionally integrated regions. These forces have raised the stakes for regions in their pursuit of economic development and growth, making successful regional policy even more important. Changes to the governance structures consistent with the increased interdependence within broad rural-urban regions will improve the region's competitiveness; adopting fad-based approaches and policies aimed at “picking winners” will be less fruitful. Going forward, continuing globalization and environmental sustainability have the potential to fundamentally reshape relative regional attractiveness.Regional Policy, Rural Development
Determinants of non-farm labour participation rates among farmers in Australia
In recent decades, non‐farm employment has become prevalent and an important source of income for Australian farm families. However, models identifying the relative significance of the socioeconomic variables influencing non‐farm employment participation rates have never been estimated in Australia. In this paper, a bivariate probit model of non‐farm employment participation rates was estimated, using information from the Australian Bureau of Agricultural Resource Economics (ABARE) 1994–1995 surveys. It was found that the participation decision of the farm operator and spouse is likely to be jointly determined, that non‐farm employment participation increased at a declining rate with age among farmers and that university education enhances the participation rates particularly among spouses. Participation rates were also higher among spouses with lower other income and with no dependent children.Farm Management,
The Winners' Choice: Sustainable Economic Strategies for Successful 21st Century Regions
Throughout the second half of the 20th Century, urbanization, new technologies, rapid labor-saving productivity growth in primary industries, and improved highways combined to create large-scale rural-urban functionally integrated regions. These forces have raised the stakes for regions in their pursuit of economic development and growth, making successful regional policy even more important. Changes to the governance structures consistent with the increased interdependence within broad rural-urban regions will improve the region's competitiveness; adopting fad-based approaches and policies aimed at "picking winners" will be less fruitful. Going forward, continuing globalization and environmental sustainability have the potential to fundamentally reshape relative regional attractiveness
REGKLAM Entwicklung und Erprobung eines integrierten regionalen Klimaanpassungsprogramms für die Modellregion Dresden
Dies ist ein Poster aus dem REGKLAM-Vorhaben, welches einen Überblick über das Projekt als Ganzes liefert
Wettability characteristics of carbon steel modified with CO2, Nd:YAG, Excimer and high power diode lasers
Interaction of CO2, Nd:YAG, excimer and high power diode laser (HPDL) radiation with the surface of a
common mild steel (EN8) was found to effect changes in the wettability characteristics of the steel,
namely changes in the measured contact angle. These modifications are related to changes in the surface
roughness, changes in the surface oxygen content and changes in the surface energy of the mild steel. The
wettability characteristics of the selected mild steel could be controlled and/or modified by laser surface
treatment. A correlation between the change of the wetting properties of the mild steel and the laser
wavelength was found
Carbon steel wettability characteristics enhancement for improved enamelling using a 1.2 kW high power diode laser
High-power diode laser (HPDL) surface treatment of a common engineering carbon steel(EN8) was found to effect significant changes to the wettability characteristics of the metal. These modifications have been investigated in terms of the changes in the surface roughness of the steel, the presence of any surface melting, the polar component of the steel surface energy and the relative surface oxygen content of the steel. The morphological and wetting characteristics
of the mild steel and the enamel were determined using optical microscopy, scanning
electron microscopy (SEM), X-ray photoemission spectroscopy (XPS), energy-dispersive X-ray
(EDX) analysis and wetting experiments by the sessile drop technique. This work has shown
that HPDL radiation can be used to alter the wetting characteristics of carbon steel so as to
facilitate improved enamelling
Effective density of Aquadag and fullerene soot black carbon reference materials used for SP2 calibration
The mass and effective density of black carbon (BC) particles generated from aqueous suspensions of Aquadag and fullerene soot was measured and parametrized as a function of their mobility diameter. The measurements were made by two independent research groups by operating a differential mobility analyser (DMA) in series with an aerosol particle mass analyser (APM) or a Couette centrifugal particle mass analyser (CPMA). Consistent and reproducible results were found in this study for different production lots of Aquadag, indicating that the effective density of these particles is a stable quantity and largely unaffected by differences in aerosol generation procedures and suspension treatments. The effective density of fullerene soot particles from one production lot was also found to be stable and independent of suspension treatments. Some differences to previous literature data were observed for both Aquadag and fullerene soot at larger particle diameters. Knowledge of the exact relationship between mobility diameter and particle mass is of great importance, as DMAs are commonly used to size-select particles from BC reference materials for calibration of single particle soot photometers (SP2), which quantitatively detect the BC mass in single particles
Actual and potential distribution of an invasive canola pest, Meligethes viridescens (Coleoptera: Nitidulidae), in Canada
Meligethes viridescens (Fabricius), bronzed or rape blossom beetle, is a widespread and common pest of oilseed rape [Brassica napus L. and Brassica rapa L. (Brassicaceae)] in the western Palaearctic subregion. The establishment of M. viridescens in eastern North America has raised concern that its presence is a potential risk to the Canadian canola industry, especially to the prairie ecozone of western Canada where up to 4 million ha of summer canola (B. napus and B. rapa) are grown annually. Study of museum specimens indicated that M. viridescens was first recorded in Nova Scotia in 1947. Field surveys indicated that, as of 2001, M. viridescens was established as far west as Saint-Hyacinthe, Quebec. A CLIMEXTM model for M. viridescens in Europe was developed and validated with actual distribution records. In Canada the model predicted that once introduced, M. viridescens would readily survive in the canola-growing areas. The actual distribution of M. viridescens in eastern Canada matched the predicted distribution well. The westward dispersal to and establishment of M. viridescens in canola-growing areas of Ontario and western Canada, particularly southern Manitoba, appear to be inevitable. Establishment in these areas presents the risk of substantial production losses to canola producer
Alpha adrenergic receptor blockade increases capillarisation and O2 extraction and lowers blood flow in contracting human skeletal muscle
Aim: To investigate the effect of increased basal shear stress on angiogenesis, and the role of enhanced skeletal muscle capillarisation on blood flow and oxygen extraction. Methods: Limb haemodynamics and oxygen extraction were measured at rest and during one-leg knee-extensor exercise (12 and 24W) in 10 healthy untrained young men before and after 4 weeks treatment with an α1 receptor-antagonist (Terazosin, 1-2 mg day-1). Biopsies were taken from the m. vastus lateralis. Results: Resting leg blood flow was > 6 hours following Terazosin treatment (P<0.05). Basal capillary-to-fibre ratio was 1.68±0.07 and increased to 1.89±0.08 after treatment (P<0.05). Leg oxygen extraction during knee-extensor exercise was higher (4-5% ; P<0.05), leg blood flow and venous lactate levels lower (6-7%; P<0.05) and leg VO2 similar after Terazosin treatment. Conclusion: These results demonstrate that daily treatment with an α-adrenergic receptor blocker and a consequent increase in resting blood flow induces capillary growth in human skeletal muscle, likely due to increased shear stress. The increase in capillarisation led to enhanced O2 extraction in the exercising leg, concomitant with a lower blood flow and venous lactate levels
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