Results 61 to 70 of about 6,511,507 (299)

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

Implementation of a Second-Order TVD Transport Algorithm in the General Ocean Model (GOM)

open access: yesJournal of Marine Science and Engineering
This study presents the implementation of a scalar transport algorithm in the recently developed General Ocean Model (GOM), a three-dimensional, unstructured grid, finite volume/finite difference model.
Jungwoo Lee   +3 more
doaj   +1 more source

Asymptotic periodicity of flows in time-depending networks

open access: yesNetworks and Heterogeneous Media, 2013
We consider a linear transport equation on the edges of a network with time-varying coefficients. Using methods for non-autonomous abstract Cauchy problems, we obtain well-posedness of the problem and describe the asymptotic profile of the solutions ...
Fatih Bayazit   +2 more
doaj   +1 more source

Transport Equations and Criteria for Active Transport [PDF]

open access: yesAmerican Zoologist, 1970
The relation between driving forces and the flux of solutes that would be expected in a passive system is derived. This relation is a differential equation and different solutions are obtained which apply to different experimental conditions. Solutions are given for the cases of pure convective flow, diffusion, electrophoretic mobility, balance between
openaire   +2 more sources

On a transport equation with nonlocal drift [PDF]

open access: yes, 2014
In \cite{CordobaCordobaFontelos05}, C\'ordoba, C\'ordoba, and Fontelos proved that for some initial data, the following nonlocal-drift variant of the 1D Burgers equation does not have global classical solutions \[ \partial_t \theta +u \; \partial_x ...
L. Silvestre, V. Vicol
semanticscholar   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

open access: yesFEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo   +2 more
wiley   +1 more source

Blow-up criterion for the 2D Euler-Boussinesq system in terms of temperature

open access: yesElectronic Journal of Differential Equations, 2016
In this article, we study the blow-up slutions for the 2D Euler-Boussinesq equation. In particular, it is shown that if $$ \int_0^{T^*} \sup_{r\geq 2}\frac{\|\Lambda^{1-\alpha} \theta(t)\|_{L^{r}}} {\sqrt{r\log r ...
Chenyin Qin
doaj  

Structured first order conservation models for pedestrian dynamics

open access: yesNetworks and Heterogeneous Media, 2013
In this contribution, we revisit multiple first order macroscopic modellingapproaches to pedestrian flows and computationally compare the results with amicroscopic approach to pedestrian dynamics.
Dirk Hartmann, Isabella von Sivers
doaj   +1 more source

On a universal solution to the transport-of-intensity equation.

open access: yesOptics Letters, 2019
The transport-of-intensity equation (TIE) is one of the most well-known approaches for phase retrieval and quantitative phase imaging. It directly recovers the quantitative phase distribution of an optical field by through-focus intensity measurements in
Jialin Zhang   +4 more
semanticscholar   +1 more source

Structural insights into lacto‐N‐biose I recognition by a family 32 carbohydrate‐binding module from Bifidobacterium bifidum

open access: yesFEBS Letters, EarlyView.
Bifidobacterium bifidum establishes symbiosis with infants by metabolizing lacto‐N‐biose I (LNB) from human milk oligosaccharides (HMOs). The extracellular multidomain enzyme LnbB drives this process, releasing LNB via its catalytic glycoside hydrolase family 20 (GH20) lacto‐N‐biosidase domain.
Xinzhe Zhang   +5 more
wiley   +1 more source

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