Results 51 to 60 of about 5,984 (300)

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

Uniform Convergence of the Spectral Expansion for a Differential Operator with Periodic Matrix Coefficients

open access: yesBoundary Value Problems, 2008
We obtain asymptotic formulas for eigenvalues and eigenfunctions of the operator generated by a system of ordinary differential equations with summable coefficients and the quasiperiodic boundary conditions.
O. A. Veliev
doaj   +2 more sources

Ordinary and calibrated differential operators, connections and application to curvilinear webs

open access: yesPracì Mìžnarodnogo Geometričnogo Centru
Abelian relations of a curvilinear web are the solutions of the partial differential equation defined by a certain differential operator that we prove to be always "ordinary" and "calibrated".
Daniel Lehmann
doaj   +1 more source

Bispectral commutative ordinary differential operators.

open access: yesJournal für die reine und angewandte Mathematik (Crelles Journal), 1993
Let \(A\) be a commutative algebra of ordinary differential operators. We say \(A\) is bispectral if there is a family \(\psi(x,z)\) of joint eigenfunctions for the operators in \(A\) that also satisfies a differential equation of the form \(\Lambda\psi= \theta(x)\psi\), where \(\Lambda\) is some ordinary differential operator in the spectral parameter
openaire   +1 more source

Commutants of ordinary differential operators

open access: yesJournal of Differential Equations, 1980
This paper is concerned with the algebraic and analytic structure of the commutant g’(L) of a regular ordinary differential operator L with Cz matrix-valued coefficients. The main algebraic result is that V(L) is a free module of rank at most EW over the polynomial ring U&L], where K is the six of the matrices in the coefficients of L and n is the ...
Carlson, R.C, Goodearl, K.R
openaire   +2 more sources

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

open access: yesFEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara   +3 more
wiley   +1 more source

Spectral analysis of singular ordinary differential operators with indefinite weights

open access: yes, 2020
In this paper we develop a perturbation approach to investigate spectral problems for singular ordinary differential operators with indefinite weight functions.
Jussi Behrndt, Friedrich Philipp
core  

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Functional Determinants for Radially Separable Partial Differential Operators

open access: yesActa Polytechnica, 2007
Functional determinants of differential operators play a prominent role in many fields of theoretical and mathematical physics, ranging from condensed matter physics, to atomic, molecular and particle physics.
G. V. Dunne
doaj  

Home - About - Disclaimer - Privacy