Search Results - "Walker, D.A."

Biofuels - for better or worse by Walker, D.A

“…The present world population is largely fed by 'industrialised agriculture'. This, in turn, depends on massive inputs of fossil fuels. While this energy…”
Get full text

The shifting mosaic of ice-wedge degradation and stabilization in response to infrastructure and climate change, Prudhoe Bay Oilfield, Alaska, USA by Kanevskiy, Mikhail, Shur, Yuri, (Skip) Walker, D.A., Jorgenson, Torre, Raynolds, Martha K., Peirce, Jana L., Jones, Benjamin M., Buchhorn, Marcel, Matyshak, Georgiy, Bergstedt, Helena, Breen, Amy L., Connor, Billy, Daanen, Ronald, Liljedahl, Anna, Romanovsky, Vladimir E., Watson-Cook, Emily

“…We studied processes of ice-wedge degradation and stabilization at three sites adjacent to road infrastructure in the Prudhoe Bay Oilfield, Alaska, USA. We…”
Get full text

Primary postoperative chemotherapy without radiotherapy for treatment of brain tumours other than ependymoma in children under 3 years: Results of the first UKCCSG/SIOP CNS 9204 trial by Grundy, R.G, Wilne, S.H, Robinson, K.J, Ironside, J.W, Cox, T, Chong, W.K, Michalski, A, Campbell, R.H.A, Bailey, C.C, Thorp, N, Pizer, B, Punt, J, Walker, D.A, Ellison, D.W, Machin, D

“…Abstract Background Radiotherapy is an effective adjuvant treatment for brain tumours arising in very young children, but it has the potential to damage the…”
Get full text

Seizure characteristics and their treatment in pediatric brain tumour patients: A proposal for a service evaluation criteria by Pilotto, C, Whitehouse, W.P, Liu, J, Grundy, R, Wilne, S, Walker, D.A

Get full text

Data on the number and frequency of scientific literature citations for established medulloblastoma cell lines by Ivanov, D.P., Walker, D.A., Coyle, B., Grabowska, A.M.

“…This article collates information about the number of scientific articles mentioning each of the established medulloblastoma cell lines, derived through a…”
Get full text

Rescuing Valuable Arctic Vegetation Data for Biodiversity Models, Ecosystem Models and a Panarctic Vegetation Classification by Walker, D.A., Alsos, I.G., Bay, C., Boulanger-Lapointe, N., Breen, A.L., Bültmann, H., Christensen, T., Damgaard, C., Daniëls, F.J.A., Hennekens, S., Raynolds, M.K., Le Roux, P.C., Luoto, M., Pellissier, L., Peet, R.K., Schmidt, N.M., Stewart, L., Virtanen, R., Yoccoz, N.G., Wisz, M.S.

“…Two workshops held in Roskilde, Denmark, on 29 - 31 May and 17 - 19 December 2012, brought together key Arctic vegetation scientists and bio-diversity modelers…”
Get full text

Long-term studies of snow-vegetation interactions by Walker, D.A. (University of Colorado, Boulder, CO), Halfpenny, J.C, Walker, M.D, Wessman, C.A

“…Research was conducted to determine the regional hydrological, biogeochemical and atmospheric processes in snowy alpine regions. The consequences of changed…”
Get full text

Transmission of Bovine viral diarrhea virus 1b to susceptible and vaccinated calves by exposure to persistently infected calves by Fulton, R.W, Briggs, R.E, Ridpath, J.F, Saliki, J.T, Confer, A.W, Payton, M.E, Duff, G.C, Step, D.L, Walker, D.A

“…Bovine viral diarrhea virus (BVDV) persistently infected (PI) calves represent significant sources of infection to susceptible cattle. The objectives of this…”
Get full text

The relative importance of clinical acumen and advanced investigations in the diagnosis of chest pain in the parturient by Berry, M.I, Walker, D.A, Walker, F

Get full text

Combining Research and Education: Bioclimatic Zonation along a Canadian Arctic Transect by Gould, W. A., Walker, D. A., Biesboer, D.

“…Scientists and students from five countries combined research and education in an investigation of bioclimatic zonation along a Canadian Arctic transect, from…”
Get full text

Loess ecosystems of northern Alaska: regional gradient and toposequence at Prudhoe Bay by Walker, D. A., Everett, K. R.

“…Loess-dominated ecosystems cover @?14%(11 000 km^2) of the Arctic Coastal Plain and much of the northern portion of the Arctic Foothills. Knowledge of this…”
Get full text

The Circumpolar Arctic vegetation map by Walker, Donald A, Raynolds, Martha K, Daniëls, Fred J. A, Einarsson, Eythor, Elvebakk, Arve, Gould, William A, Katenin, Adrian E, Kholod, Sergei S, Markon, Carl J, Melnikov, Evgeny S, Moskalenko, Natalia G, Talbot, Stephen S, Yurtsev, Boris A

“…Question: What are the major vegetation units in the Arctic, what is their composition, and how are they distributed among major bioclimate subzones and…”
Get full text

C[O.sub.2] Emission and Organic Carbon Pools in Soils of the Northern Taiga Ecosystems of Western Siberia under Different Geocryological Conditions by Bobrik, A.A, Ryzhova, I.M, Goncharova, O.Yu, Matyshak, G.V, Makarov, M.I, Walker, D.A

“…Statistical analysis of a vast body of data collected during five field seasons (2011-2015) was performed to characterize the biological activity of soils in…”
Get full text

Circumpolar Arctic vegetation: a hierarchic review and roadmap toward an internationally consistent approach to survey, archive and classify tundra plot data by Walker, D A, Daniëls, F J A, Alsos, I, Bhatt, U S, Breen, A L, Buchhorn, M, Bültmann, H, Druckenmiller, L A, Edwards, M E, Ehrich, D, Epstein, H E, Gould, W A, Ims, R A, Meltofte, H, Raynolds, M K, Sibik, J, Talbot, S S, Webber, P J

“…Satellite-derived remote-sensing products are providing a modern circumpolar perspective of Arctic vegetation and its changes, but this new view is dependent…”
Get full text

Cryogenesis and soil formation along a bioclimate gradient in Arctic North America by Ping, C.L, Michaelson, G.J, Kimble, J.M, Romanovsky, V.E, Shur, Y.L, Swanson, D.K, Walker, D.A

“…In arctic tundra, cryoturbation resulting from frost heave, cracking, and other cryogenic processes produces patterned ground such as nonsorted circles,…”
Get full text

NDVI patterns and phytomass distribution in the circumpolar Arctic by Raynolds, M.K., Walker, D.A., Maier, H.A.

“…The Circumpolar Arctic Vegetation Map (CAVM) was used to analyze the distribution of NDVI and phytomass in the Arctic, providing data for understanding arctic…”
Get full text

Secondary fluorescence kinetics of spinach leaves in relation to the onset of photosynthetic carbon assimilation by Walker, D.A

“…When spinach leaves are re-illuminated, after dark periods of 90 s or less, an initial fluorescence peak is observed which rapidly gives way to a much lower…”
Get full text

Therapeutic recreation camps: an effective intervention for children and young people with chronic illness? by Walker, D A, Pearman, D

“…Since the 1930s, therapeutic recreation (TR) has been used in the UK to help young people cope with severe illness. This article surveys four systematic…”
Get full text

Antibiotic use for febrile neutropaenia in children with cancer by Harwood, B, Pinnick, T, Kendall, D, Walker, DA, Alukar, S

“…Objectives To assess if the antibiotic regimens being instituted are according to the NUH febrile neutropaenia guideline. To determine if gentamicin levels are…”
Get full text

Reversible changes in macroorganization of the light-harvesting chlorophyll a/b pigment-protein complex detected by circular dichroism by Garab, Gyozo, Leegood, Richard C, Walker, David A, Sutherland, John C, Hind, Geoffrey

“…Light-induced changes in circular dichroism (CD) were studied in thylakoids isolated from spinach. The following features of CD responses occurring in the time…”
Get full text