Results 111 to 120 of about 2,912,298 (341)

Population dynamics in a random environment

, 2000
We investigate the competition between barrier slowing down and proliferation induced superdiffusion in a model of population dynamics in a random force field. Numerical results in $d=1$ suggest that a new intermediate diffusion behaviour appears.
Bouchaud, Jean-Philippe, Giardina, Irene, Mezard, Marc   +2 more
core   +1 more source

A scale-invariant model of marine population dynamics

, 2010
A striking feature of the marine ecosystem is the regularity in its size spectrum: the abundance of organisms as a function of their weight approximately follows a power law over almost ten orders of magnitude.
Capitan, Jose A., Delius, Gustav W.
core   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source

Association between the number of comorbidities and all-cause mortality during the COVID-19 pandemic: A Danish nationwide, retrospective cohort study

Journal of Public Health Research
Objectives: Chronic illnesses have been linked to elevated risks of hospitalization and mortality during the COVID 19 pandemic. While many studies have examined how specific comorbidities influence outcomes among hospitalized COVID 19 patients, less is ...
Virginia Zarulli, Cosmo Strozza, Silvia Rizzi   +2 more
doaj   +1 more source

Population Dynamics of Breeding South Polar Skuas of Unknown Age [PDF]

, 1971
Robert C. Wood
openalex   +1 more source

Population dynamics of two competing species in an advective heterogeneous two-patch environment

, 2023
Yingchun Qi, Linlin Su, Mingxin Wang
openalex   +2 more sources

Simulation of large deviation functions using population dynamics

, 2008
In these notes we present a pedagogical account of the population dynamics methods recently introduced to simulate large deviation functions of dynamical observables in and out of equilibrium.
Joaquín Marro, Julien Tailleur, Pablo I. Hurtado, Pedro L. Garrido, Vivien Lecomte   +4 more
core   +1 more source

Mobility and Population Dynamics

, 2007
Contains fulltext : 160919.pdf (Publisher’s version ) (Open Access)
Smith, L., Hebinck, P.G.M.
openaire   +2 more sources

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

State-dependent delay differential equations in population dynamics: Modeling and analysis [PDF]

, 2001
Ovide Arino, Eva Sánchez, Ashraf Fathallah   +2 more
openalex   +1 more source