Results 101 to 110 of about 6,267,247 (357)
Localized shear generates three-dimensional transport
, 2017 Understanding the mechanisms that control three-dimensional (3D) fluid transport is central to many processes including mixing, chemical reaction and biological activity.
Lester, Daniel R. +3 more
core +1 more source
FEBS Letters, EarlyView.The protonated form of butyrate, as well as other short‐chain fatty acids (SCFAs), is membrane permeable. In acidic extracellular environments, this can lead to intracellular accumulation of SCFAs and cytosolic acidification. This phenomenon will be particularly relevant in acidic environments such as the large intestine or tumor microenvironments ...
Muwei Jiang +2 more
wiley +1 more source
A physical derivation of high-flux ion transport in biological channel via quantum ion coherence
Nature CommunicationsBiological ion channels usually conduct the high-flux transport of 107 ~ 108 ions·s− 1; however, the underlying mechanism is still lacking. Here, by applying the KcsA potassium channel as a typical example, and performing multitimescale molecular ...
Yue Wang +5 more
doaj +1 more source
Scaling theory of transport in complex networks
, 2007 Transport is an important function in many network systems and understanding its behavior on biological, social, and technological networks is crucial for a wide range of applications.
Almaas +11 more
core +3 more sources
A stepwise emergence of evolution in the RNA world
FEBS Letters, EarlyView.How did biological evolution emerge from chemical reactions? This perspective proposes a gradual scenario of self‐organization among RNA molecules, where catalytic feedback on random mixtures plays the central role. Short oligomers cross‐ligate, and self‐assembly enables heritable variations. An event of template‐externalization marks the transition to
Philippe Nghe
wiley +1 more source
Ecological aspects of using biological diesel oil in railway transport [PDF]
Transport, 2008 The number of various transport facilities used in Europe is rapidly growing. They release a big amount of pollutants into the atmosphere. Therefore, environment protection from these pollutants ejected by internal combustion engines is a key problem ...
L. P. Lingaitis, S. Pukalskas
doaj +2 more sources
Confined gas transport in low-dimensional materials
International Journal of Smart and Nano MaterialsGas transport under confinement exhibits a plethora of physical and chemical phenomena that differ from those observed in bulk media, owing to the deviations of continuum description at the molecular level.
Hongwei Duan +4 more
doaj +1 more source
The particle in the spider's web: transport through biological hydrogels.
Nanoscale, 2017 Biological hydrogels such as mucus, extracellular matrix, biofilms, and the nuclear pore have diverse functions and compositions, but all act as selectively permeable barriers to the diffusion of particles.
Jacob Witten, K. Ribbeck
semanticscholar +1 more source
Towards a model of non-equilibrium binding of a metal ion in a biological system [PDF]
, 2008 We have used a systems biology approach to address the hitherto insoluble problem of the quantitative analysis of non-equilibrium binding of aqueous metal ions by competitive ligands in heterogeneous media.
Christopher Exley, James Beardmore
core +1 more source
Long-Lived Electronic Coherence in Dissipative Exciton-Dynamics of Light-Harvesting Complexes
, 2012 The observed prevalence of oscillatory signals in the spectroscopy of biological light-harvesting complexes at ambient temperatures has led to a search for mechanisms supporting coherent transport through larger molecules in noisy environments.
Kramer, Tobias, Kreisbeck, Christoph
core +1 more source