Results 31 to 40 of about 494,000 (315)

Time or Space? Relative Importance of Geographic Distribution and Interannual Variation in Three Lineages of the Ascidian Pyura chilensis in the Southeast Pacific Coast

open access: yesFrontiers in Marine Science, 2021
Spatial and temporal variation of environmental parameters can affect dispersal, recruitment and population persistence of marine benthic species. Studies including inter-annual comparisons of genetic structure often indicate high/moderate temporal ...
Pilar A. Haye   +5 more
doaj   +1 more source

A modal logic with temporal variables. [PDF]

open access: yesNotre 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

Spatial and temporal variability of rainfall erosivity factor for Switzerland [PDF]

open access: yes, 2011
Rainfall erosivity, considering rainfall amount and intensity, is an important parameter for soil erosion risk assessment under future land use and climate change.
Steel, A.   +14 more
core   +1 more source

Wave Energy Resource Assessment for Small-Scale WEC near a Harbour

open access: yesJournal of Marine Science and Engineering, 2022
Accurate evaluations of the available and technically exploitable wave energy resources are fundamental to optimise the design and implementation of energy converters in the marine environment.
Nicolas Guillou   +2 more
doaj   +1 more source

Altered static and dynamic intrinsic brain activity in unilateral sudden sensorineural hearing loss

open access: yesFrontiers in Neuroscience, 2023
IntroductionSudden sensorineural hearing loss (SSHL) is a critical otologic emergency characterized by a rapid decline of at least 30 dB across three consecutive frequencies in the pure-tone audiogram within a 72-hour period.
Jing Li   +10 more
doaj   +1 more source

Temporal Variability of Cortical Gyral-Sulcal Resting State Functional Activity Correlates With Fluid Intelligence

open access: yesFrontiers in Neural Circuits, 2019
The human cerebral cortex is highly convoluted as convex gyri and concave sulci. In the past decades, extensive studies have consistently revealed substantial differences between gyri and sulci in terms of genetics, anatomy, morphology, axonal fiber ...
Shimin Yang   +11 more
doaj   +1 more source

High Daily and Year-Round Variability in Denitrification and Nitrogen Fixation in a Northern Temperate River

open access: yesFrontiers 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

Modelling within-region spatiotemporal variability in grapevine phenology with high resolution temperature data

open access: yesOENO One, 2019
Aim: While it is well recognised that climate can vary spatially so that grapevine phenology significantly varies within a winegrowing region, the magnitude of temporal variability in climate determining factors to engender a significant difference in ...
Andrew Hall, John Blackman
doaj   +1 more source

Temporal-spatial dynamic functional connectivity analysis in schizophrenia classification

open access: yesFrontiers in Neuroscience, 2022
With the development of resting-state functional magnetic resonance imaging (rs-fMRI) technology, the functional connectivity network (FCN) which reflects the statistical similarity of temporal activity between brain regions has shown promising results ...
Cong Pan   +4 more
doaj   +1 more source

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