Results 71 to 80 of about 23,603 (268)

Microbiome‐blood–brain barrier interactions in aging — mechanisms and therapeutic potential

open access: yesFEBS Letters, EarlyView.
Aging reshapes the gut microbiome (↓SCFA‐producing commensals; ↑pro‐inflammatory outputs), shifting circulating metabolites (↓SCFAs; ↑LPS, ↑TMAO, ↑PAA) that act at the BBB to increase nonspecific transcytosis, alter transport, and promote astrocyte reactivity, heightening brain vulnerability.
Daniel Cuervo‐Zanatta   +3 more
wiley   +1 more source

Chaos, Percolation and the Coronavirus Spread

open access: yesFrontiers in Physics, 2020
The dynamics of the spreading of the COVID-19 virus has similar features to turbulent flow, chaotic maps, and other non-linear systems: a small seed grows exponentially and eventually saturates.
Aldo Bonasera   +2 more
doaj   +1 more source

The percolating cluster is invisible to image recognition with deep learning

open access: yesNew Journal of Physics, 2023
We study the two-dimensional site-percolation model on a square lattice. In this paradigmatic model, sites are randomly occupied with probability p ; a second-order phase transition from a non-percolating to a fully percolating phase appears at ...
Djénabou Bayo   +2 more
doaj   +1 more source

Self‐destructive percolation [PDF]

open access: yesRandom Structures & Algorithms, 2004
AbstractConsider ordinary site percolation on an infinite graph in which the sites, independent of each other, are occupied with probability p and vacant with probability 1 − p. Now suppose that, by some “catastrophe,” all sites which are in an infinite occupied cluster become vacant.
J. van den Berg (Rob)   +1 more
openaire   +3 more sources

Structure‐forward targeting of claudins with synthetic binders

open access: yesFEBS Letters, EarlyView.
Claudins form the paracellular barriers between epithelial and endothelial tissues at tight junctions and are targets for molecular binders with the goal of modulating barrier permeability. Claudin‐binding molecules are relevant in drug delivery or in altering claudin interactions with disease‐causing proteins.
Alex J. Vecchio
wiley   +1 more source

Practical Guidelines for Water Percolation Capacity Determination of the Ground

open access: yesGeologija, 2011
Determination of water infiltration capacity of ground soils and rocks represents important part of design and construction procedures of the facilities for the infiltration of clean precipitation water.
Mihael Brenčič
doaj  

Physical Realizations of Interdependent Networks: Analogy to Percolation

open access: yesEntropy
Percolation on interdependent networks generalizes the well-studied percolation model in a single network to multiple interacting systems, unveiling spontaneous cascading failures, abrupt collapses, and high vulnerability.
Bnaya Gross, Shlomo Havlin
doaj   +1 more source

Mobilidade vertical de cátions influenciada pelo método de aplicação de cloreto de potássio em solos com carga variável Vertical mobility of cations as influenced by the method of potassium chloride application to variable charge soils

open access: yesRevista Brasileira de Ciência do Solo, 2007
A magnitude da mobilidade vertical dos nutrientes no perfil afeta o contato destes com as raízes e a lixiviação e, por isso, influencia a época e o método de aplicação dos fertilizantes ao solo.
Paulo Roberto Ernani   +3 more
doaj   +1 more source

Epigenetic reprogramming of lineage switching in cancer

open access: yesFEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı   +4 more
wiley   +1 more source

Deposição do enxofre atmosférico no solo pelas precipitações pluviais e respostas de culturas à adubação sulfatada em sistema plantio direto Soil sulphur atmospheric depositions by pluvial precipitations and crops responses to sulfated fertilization in no-tillage system

open access: yesCiência Rural, 2007
Entre vários fatores que podem mascarar a ocorrência de respostas das plantas ao enxofre, destaca-se a deposição atmosférica via água da chuva. O objetivo deste trabalho foi avaliar a quantidade de sulfato presente na água das chuvas e as respostas de ...
Benjamin Dias Osório Filho   +4 more
doaj   +1 more source

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