Results 31 to 40 of about 4,411,385 (345)

Spatial heterogeneity of the shorebird gastrointestinal microbiome [PDF]

open access: yesRoyal Society Open Science, 2020
The gastrointestinal tract (GIT) consists of connected structures that vary in function and physiology, and different GIT sections potentially provide different habitats for microorganisms.
Kirsten Grond   +2 more
doaj   +1 more source

Heterogeneous timescales are spatially represented [PDF]

open access: yesFrontiers in Psychology, 2014
There is little doubt that cognitive processes involved in perceiving and comparing the duration of the sounds played by a musical instrument are very different from those involved, for instance, in recalling when our latest holidays took place. However, despite their clear difference, we ascribe both processes to the time domain, either in the form of
BONATO, MARIO, UMILTA', CARLO ARRIGO
openaire   +3 more sources

Combined effects of soil 3D spatial heterogeneity and biotic spatial heterogeneity (plant clumping) on ecosystem processes in grasslands

open access: yesEcology and Evolution, 2023
Soil heterogeneity has been shown to enhance plant diversity, but its effect on grassland productivity is less clear. Even less is known about the effect of plant clumping (intraspecific aggregation) and its potential interaction with soil heterogeneity.
O. Vindušková   +5 more
doaj   +1 more source

Effects of Plateau Pika Disturbance on the Spatial Heterogeneity of Vegetation in Alpine Meadows

open access: yesFrontiers in Plant Science, 2021
Herbivory is one of the important factors that influence spatial heterogeneity of vegetation in grasslands. In this study, we focused on plateau pika (Ochotona curzoniae) to investigate the effects of the presence of small semi-fossorial herbivores and ...
Jie Li   +3 more
doaj   +1 more source

Spatial localization in heterogeneous systems [PDF]

open access: yesPhysical Review E, 2014
We study spatial localization in the generalized Swift-Hohenberg equation with either quadratic-cubic or cubic-quintic nonlinearity subject to spatially heterogeneous forcing. Different types of forcing (sinusoidal or Gaussian) with different spatial scales are considered and the corresponding localized snaking structures are computed.
Kao, H-C, Beaume, C, Knobloch, E
openaire   +3 more sources

Spatial heterogeneity can lead to substantial local variations in COVID-19 timing and severity [PDF]

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2020
Significance We examine the effects of an uneven population distribution on the spread of the COVID-19 disease spread, using a diffusion model based on interpersonal contact networks.
Lori Thomas   +6 more
semanticscholar   +1 more source

Spatial Heterogeneity in Bistable Figure-Ground Perception

open access: yesi-Perception, 2020
The appearance of visual objects varies substantially across the visual field. Could such spatial heterogeneity be due to undersampling of the visual field by neurons selective for stimulus categories?
Nonie J. Finlayson   +2 more
doaj   +1 more source

Modeling Spatial Interaction in Stochastic Frontier Analysis

open access: yesFrontiers in Sustainable Food Systems, 2021
We compare farm level efficiency rankings derived from non-spatial and a variety of spatial model specifications that account for unobserved heterogeneity in both the production and the efficiency sides of the stochastic frontier model in an empirical ...
Francisco J. Areal, Valerien O. Pede
doaj   +1 more source

Effect of the intratumoral microbiota on spatial and cellular heterogeneity in cancer

open access: yesNature, 2022
The tumour-associated microbiota is an intrinsic component of the tumour microenvironment across human cancer types 1 , 2 . Intratumoral host–microbiota studies have so far largely relied on bulk tissue analysis 1 – 3 , which obscures the spatial ...
J. L. Galeano Niño   +13 more
semanticscholar   +1 more source

Resource competition and coexistence in heterogeneous metacommunities: many-species coexistence is unlikely to be facilitated by spatial variation in resources [PDF]

open access: yesPeerJ, 2013
There is little debate about the potential of environmental heterogeneity to facilitate species diversity. However, attempts to show the relationship between spatial heterogeneity and diversity empirically have given mixed results.
Donald R. Schoolmaster Jr
doaj   +2 more sources

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