Zobrazeno 1 - 10
of 60
pro vyhledávání: '"S. G. Robinson"'
Publikováno v:
Hydrological Processes. 19:2973-2989
Upper North Grain (UNG) is a heavily eroding blanket peat catchment in the Peak District, southern Pennines, UK. Concentrations of lead in the near-surface peat layer at UNG are in excess of 1000 mg kg � 1 . For peatland environments, these lead co
A 30 year perspective of the quality of evidence published in 25 clinical journals: Signs of change?
Publikováno v:
Postgraduate Medical Journal. 82:397-399
Methods The quality of clinical studies published in five different specialties, over three decades was evaluated. Computerised search of the Medline database was undertaken to evaluate the articles published in 25 clinical journals in 1983, 1993, an
Publikováno v:
Geophysical Research Letters. 22:1961-1964
We describe the results of rock-magnetic measurements of a sediment core from the Madeira Abyssal Plain which contains multiple turbidites. Previous studies of trace element (e.g. U) concentration and observations of sediment color changes have shown
Publikováno v:
Paleoceanography. 10:593-610
Fine sediment size (< 63 Ixm) is best measured by a sedimentation technique which records the whole size distribution. Repeated size measurement with intermediate steps of removal of components by dissolution, allows inference of the size distributio
Publikováno v:
Nature. 346:737-739
QUATERNARY sequences of interbedded aeolian silts (loess) and buried soils (palaeosols) potentially provide one of the best terrestrial records of past climates1–5. Magnetic susceptibility variations in loess and palaeosol sequences from China are
Publikováno v:
Synfacts. 2009:1212-1212
Publikováno v:
Journal of the Marine Biological Association of the United Kingdom. 56:247-257
A stereocamera system is described, built-up mostly from commercially obtainable items. Special features include use of standard 55 mm focal length lenses down to 0.5 m focus, adjustable flash duration to improve image resolution, and a visual and au
Publikováno v:
Journal of Microscopy. 145:89-96
Coolants used for freezing biological specimens were tested for cooling performance in the continuous plunge mode. Results from bare thermocouples showed that ethane cooled faster than propane or a propane:pentane mixture, even when warmed to 25 K ab
Publikováno v:
Journal of the Marine Biological Association of the United Kingdom. 68:287-293
An event/time recorder is described which is contained in a sealed waterproof case, with no external electrical connections and which uses novel methods for communicating control and data signals, and for charging the internal battery. The instrument
Publikováno v:
Minutes of the Proceedings of the Institution of Civil Engineers. 183:74-84