Results 51 to 60 of about 518,510 (312)

Hierarchical development of dominance through the winner-loser effect and socio-spatial structure.

open access: yesPLoS ONE, 2022
In many groups of animals the dominance hierarchy is linear. What mechanisms underlie this linearity of the dominance hierarchy is under debate. Linearity is often attributed to cognitively sophisticated processes, such as transitive inference and ...
Erik van Haeringen, Charlotte Hemelrijk
doaj   +1 more source

Systematic comparison of modeling fidelity levels and parameter inference settings applied to negative feedback gene regulation.

open access: yesPLoS Computational Biology, 2022
Quantitative stochastic models of gene regulatory networks are important tools for studying cellular regulation. Such models can be formulated at many different levels of fidelity. A practical challenge is to determine what model fidelity to use in order
Adrien Coulier   +3 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Fast and flexible estimation of effective migration surfaces

open access: yeseLife, 2021
Spatial population genetic data often exhibits ‘isolation-by-distance,’ where genetic similarity tends to decrease as individuals become more geographically distant.
Joseph Marcus   +3 more
doaj   +1 more source

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

Fracturing process of granite inferred from measurements of spatial and temporal variations in velocity during triaxial deformations

open access: yesJournal of Geophysical Research: Solid Earth, 1989
Fracturing in fine‐grained homogeneous granite during triaxial deformation was investigated by measuring the spatial and temporal variations of elastic wave velocities. Velocities along 20 ray paths were measured with 12 piezoelectric transducers attached to a sample under confining pressures up to 400 MPa.
openaire   +2 more sources

SpaGraphCCI: Spatial cell–cell communication inference through GAT‐based co‐convolutional feature integration

open access: yesIET Systems Biology
Spatially resolved transcriptomics technologies potentially provide the extra spatial position information and tissue image to better infer spatial cell–cell interactions (CCIs) in processes such as tissue homeostasis, development, and disease ...
Han Zhang   +9 more
doaj   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

open access: yesMolecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

High-Order Composite Likelihood Inference for Max-Stable Distributions and Processes [PDF]

open access: yes, 2014
In multivariate or spatial extremes, inference for max-stable processes observed at a large collection of points is a very challenging problem and current approaches typically rely on less expensive composite likelihoods constructed from small subsets of
S. Castruccio, Raphael Huser, M. Genton
semanticscholar   +1 more source

Pairwise interaction point processes for modelling bivariate spatial point patterns in the presence of interaction uncertainty [PDF]

open access: yes, 2015
Current ecological research seeks to understand the mechanisms that sustain biodiversity and allow a large number of species to coexist. Coexistence concerns inter-individual interactions. Consequently, there is an interest in identifying and quantifying
Nightingale, Glenna Faith   +5 more
core  

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