Results 21 to 30 of about 3,984,310 (349)

Non-genetic evolution drives lung adenocarcinoma spatial heterogeneity and progression.

open access: yesCancer Discovery, 2021
Cancer evolution determines molecular and morphological intra-tumor heterogeneity and challenges the design of effective treatments. In lung adenocarcinoma, disease progression and prognosis are associated with the appearance of morphologically diverse ...
Daniele Tavernari   +12 more
semanticscholar   +1 more source

A Lacunarity‐Based Index for Spatial Heterogeneity

open access: yesEarth and Space Science, 2022
Characterizing spatial heterogeneity is fundamental in numerous areas, yet defining spatial patterns often depends on qualitative assessments or a priori knowledge.
R. Scott   +4 more
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

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

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

A Bayesian spatial random effects model characterisation of tumour heterogeneity implemented using Markov chain Monte Carlo (MCMC) simulation [PDF]

open access: yes, 2016
The focus of this study is the development of a statistical modelling procedure for characterising intra-tumour heterogeneity, motivated by recent clinical literature indicating that a variety of tumours exhibit a considerable degree of genetic spatial ...
Grech-Sollars, M, King, MD
core   +1 more source

Landscape composition and configuration relatively affect invasive pest and its associator across multiple spatial scales

open access: yesFrontiers in Sustainable Food Systems, 2023
Landscape structures affect pests, depending on compositional heterogeneity (the number and proportions of different habitats), configurational heterogeneity (spatial arrangement of habitats), and spatial scales.
Zhi Wen   +15 more
doaj   +1 more source

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

Species richness-environment relationships of European arthropods at two spatial grains : habitats and countries [PDF]

open access: yes, 2012
We study how species richness of arthropods relates to theories concerning net primary productivity, ambient energy, water-energy dynamics and spatial environmental heterogeneity.
Ben A. Woodcock   +8 more
core   +7 more sources

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

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