Results 71 to 80 of about 4,557,251 (286)

Existence and uniqueness of a positive solution to generalized nonlocal thermistor problems with fractional-order derivatives

open access: yes, 2011
In this work we study a generalized nonlocal thermistor problem with fractional-order Riemann-Liouville derivative. Making use of fixed-point theory, we obtain existence and uniqueness of a positive solution.Comment: Submitted 17-Jul-2011; revised 09-Oct-
Ammi, Moulay Rchid Sidi   +1 more
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Solutions of fourth-order partial differential equations in a noise removal model

open access: yesElectronic Journal of Differential Equations, 2007
In this paper, we discuss the existence and uniqueness of weak solutions for a fourth-order partial differential equation stemmed from image processing for noise removal. We also present some numerical tests for high order filters.
Yuanyuan Ke, Zhengan Yao, Qiang Liu
doaj  

Existence Theorems for Ordered Variants of Weyl Quantization

open access: yesPublications of the Research Institute for Mathematical Sciences, 1999
We consider some mathematical properties of Weyl-like quantizations based on two families of orderings of e^{t(αP+δQ)} : the first family, W_{(λ,0)} interpolates ...
Dubin, Daniel A.   +2 more
openaire   +3 more sources

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

Existence of solutions for second-order integral boundary value problems

open access: yesNonlinear Analysis, 2016
In this paper, using a new comparison result and monotone iterative method, we consider the existence of solution of integral boundary value problem for second-order differential equation.
Yujun Cui, Yumei Zou
doaj   +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

Existence theorems for a nonlinear second-order distributional differential equation

open access: yes, 2017
In this work, we are concerned with existence of solutions for a nonlinear second-order distributional differential equation, which contains measure differential equations and stochastic differential equations as special cases.
Liu, Wei   +3 more
core   +1 more source

The role and implications of mammalian cellular circadian entrainment

open access: yesFEBS Letters, EarlyView.
At their most fundamental level, mammalian circadian rhythms occur inside every individual cell. To tell the correct time, cells must align (or ‘entrain’) their circadian rhythm to the external environment. In this review, we highlight how cells entrain to the major circadian cues of light, feeding and temperature, and the implications this has for our
Priya Crosby
wiley   +1 more source

An existence theorem for second order parabolic equations [PDF]

open access: yesTransactions of the American Mathematical Society, 1958
0. THE EXISTENCE THEOREM. Let aii, bz for 1
openaire   +2 more sources

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