Results 31 to 40 of about 1,257,382 (329)
Temporal Variability of Gallium in Natural Plants. [PDF]
Toxics, 2023 The aim of the research was to study the distribution of gallium (Ga) in rhizosphere soil and in plants growing under natural conditions in uncontaminated sites, with an emphasis on temporal fluctuations of Ga concentration in plants. For this purpose, two field experiments were conducted in St. Petersburg, Russia, in 2019 and 2020, at two sites. Three
Shtangeeva I.
europepmc +4 more sources
Sky Variability in the y Band at the LSST Site [PDF]
, 2010 We have measured spatial and temporal variability in the y band sky brightness over the course of four nights above Cerro Tololo near Cerro Pachon, Chile, the planned site for the Large Synoptic Survey Telescope (LSST).
Gilmore, David Kirk +4 more
core +2 more sources
A modal logic with temporal variables. [PDF]
Notre Dame Journal of Formal Logic, 1978 There appear thus far to have been five general methods suggested in the literature for formalizing indeterministic tense-modal logics. The first consists in the introduction of a third truth-value, but this has the absurb consequence that the law of non-contradiction must be denied since the conjunction of any two propositions having the indeterminate
openaire +2 more sources
Acquired Dysarthria within the Context of the Four-level Framework of Speech Sensorimotor Control
South African Journal of Communication Disorders, 2007 The Four-Level Framework of speech sensorimotor control (Van der Merwe, 1997) complicates the traditional view of dysarthria as a purely motor execution disorder.
Alexandra Stipinovich +1 more
doaj +1 more source
The vertical structure of upper ocean variability at the Porcupine Abyssal Plain during 2012-2013 [PDF]
, 2016 This study presents the characterization of variability in temperature, salinity and oxygen concentration, including the vertical structure of the variability, in the upper 1000m of the ocean over a full year in the northeast Atlantic.
Binetti, Umberto +4 more
core +2 more sources
The place of the Sun among the Sun-like stars [PDF]
, 2013 Context. Monitoring of the photometric and chromospheric HK emission data series of stars similar to the Sun in age and average activity level showed that there is an empirical correlation between the average stellar chromospheric activity level and the ...
Cessateur, G. +3 more
core +1 more source
Temporal and spatial variability of snow accumulation in central Greenland [PDF]
, 1997 Snow accumulation records from central Greenland are explored to improve the understanding of the accumulation signal in Greenland ice core records. Results from a “forest” of 100 bamboo poles and automated accumulation monitors in the vicinity of Summit
Bolzan +15 more
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Temporal variability in snow distribution [PDF]
Annals of Glaciology, 2004 AbstractSnow-courses data have been collected in order to investigate the temporal variability of snow distribution in two catchments in southern Norway during the 2002 melt season. The profiles represent different elevations, aspects and terrain types.
Alfnes, Eli +4 more
openaire +2 more sources
Frontiers in Water, 2022 Rates of nitrogen (N) cycling processes like denitrification and dinitrogen (N2) fixation, which together are the primary contributors to N2 flux rates from surface waters, may change at different time scales from seasons to weeks to days.
Kevin C. Nevorski, Amy M. Marcarelli
doaj +1 more source
Pink landscapes: 1/f spectra of spatial environmental variability and bird community composition [PDF]
, 2002 Temporal and spatial environmental variability are predicted to have reddened spectra that reveal increases in variance with the period or length sampled. However, spectral analyses have seldom been performed on ecological data to determine whether these
Cepák, J., Gaston, K.J., Storch, D.
core +2 more sources