Results 151 to 160 of about 3,374 (202)

Spatial variations in reconstruction methods for CT

, 2012
L. Plantagie (Linda), W.J. Palenstijn (Willem Jan), J. Sijbers (Jan), K.J. Batenburg (Joost)   +3 more
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Identification of a new cell cycle variant during multiciliated cell differentiation

Serizay J, Damaa MK, Boudjema A, Balagué R, Faucourt M, Delgehyr N, Noûs C, Zaragosi L, Barbry P, Spassky N, Koszul R, Meunier A.   +11 more
europepmc   +1 more source

Contribution à l'étude de la variation spatiale et interannuelle de la température en Tunisie

Mediterranee, 1988
In Tunisia the spatial and time change of temperature is less brutal than the change in the rainfall. This explains partly why this last climate characteristic attracted the scientists' attention more than the previous one.
Henia, Latifa, Latifa Henia
exaly   +2 more sources

Spatial Variation in Abundance

Ecology, 1995
To quantify the magnitude and pattern of spatial variation in local population density within a single species, we analyzed large numbers of samples, representing a large geographic area or a wide range of ecological conditions. Our analyses focused on, but were not limited to, censuses of birds recorded in the North American Breeding Bird Survey ...
James H. Brown, David W. Mehlman, George C. Stevens   +2 more
openaire   +1 more source

SPATIAL VARIATION IN ABUNDANCE CREATED BY STOCHASTIC TEMPORAL VARIATION

Ecology, 1997
A central question in ecology is explaining spatial variation in the abundance of species. Patterns of spatial variation in abundance can often be explained by spatial variation in the environment, including resource availability, climatic variables, and other factors that influence a species’ reproduction and survival. We show that spatial patterns in
Anthony R. Ives, Eric D. Klopper
openaire   +1 more source

Spatial variation in larval concentrations as a cause of spatial variation in settlement for the barnacle, Balanus glandula

Oecologia, 1985
Settlement rates of the high intertidal barnacle, Balanus glandula, were monitored at three sites in the rocky intertidal zone in Central California simultaneously with measurements of larval concentrations in the adjacent water column. In both 1983 and 1984, settlement rates onto vacant substrate differed among the sites by nearly two orders of ...
Steven, Gaines, Stephen, Brown, Jonathan, Roughgarden   +2 more
openaire   +2 more sources

Spatial Variation of Radiocaesium Deposition in Cumbria

Geographical and Environmental Modelling, 2002
Over the past five decades Cumbria has been subject to radiocaesium deposition from a number of sources. In the event of a future nuclear accident, estimates of baseline radiocaesium deposition in Cumbria would be indispensable. This paper describes the application of ordinary block kriging to estimate the spatial variation of total 137 Cs and 134 Cs ...
Wright, S.M., Howard, D.C., Barry, J., Smith, J.T.   +3 more
openaire   +2 more sources

On the temporal and spatial variation of ozone in Cyprus

Science of The Total Environment, 2014
More than sixteen years (1997-2013) of continuous ozone concentrations at the rural Agia Marina (EMEP, 532 ma.s.l.) station in Cyprus, together with a number of ancillary chemical and meteorological parameters have been analyzed on a multiannual, annual and diurnal basis.
Savvas Kleanthous, Mihalis Vrekoussis, Nikolaos Mihalopoulos, Pavlos Kalabokas, Jos Lelieveld   +4 more
openaire   +3 more sources

Spatial vision of the cat: Variation with eccentricity

Visual Neuroscience, 1991
AbstractWe examined the grating acuity and contrast sensitivity of cats whose eye position was monitored with a scleral search-coil technique. During each trial, the cat was required to maintain fixation on a laser spot and respond to the presence or the absence of a grating by pressing a right or left pedal.
T, Pasternak, K, Horn
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Hydroclimate spatial variations

2008
Spatial scale Hydroclimate displays notable variations from place to place in response to multiple influences exerted by the Earth's climate system on the hydrologic cycle. These spatial variations exist on a continuum and produce an infinite number of hydroclimatic expressions.
openaire   +1 more source