Results 81 to 90 of about 183,763 (314)

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

Testing Multi-Frequency Low-Cost GNSS Receivers for Geodetic Monitoring Purposes

open access: yesSensors, 2020
Global Navigation Satellite System (GNSS) technology is widely used for geodetic monitoring purposes. However, in cases where a higher risk of receiver damage is expected, geodetic GNSS receivers may be considered too expensive to be used.
Veton Hamza   +4 more
doaj   +1 more source

The influence of out-of-plane stress on a plane strain problem in rock mechanics

open access: yes, 1987
This paper analyses the stresses and displacements in a uniformly prestressed Mohr-Coulomb continuum, caused by the excavation of an infinitely long cylindrical cavity.
M. B. Reed, Reed, M B
core  

Vertical displacements for various values of K0: (a) Vertical displacements; (b) Peak displacements.

open access: yes
Vertical displacements for various values of K0: (a) Vertical displacements; (b) Peak displacements.
Zhenbo Zhang (579190)   +7 more
core   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

open access: yesFEBS Letters, EarlyView.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez   +2 more
wiley   +1 more source

Les effets d’une politique municipale sur les déplacements des jeunes. Une approche socio-ethnographique

open access: yesSociétés et Jeunesses en Difficulté, 2008
Observing the interactions between a social group : the young people, and spaces : the city and its political organisation, makes it possible to understand the impact of a local policy towards youth on their ways of moving in public space. The strategies
Véronique Bordes
doaj  

Behaviour of unimorph ring-shaped piezoelectric actuator in fluidic valve

open access: yesThe Journal of Engineering, 2018
This article focuses on the behaviour analysis of an unimorph ring-shaped piezoelectric plate that is used as an actuator in a fluidic valve. First, the system modelling is discussed by using the material mechanical properties of the piezoelectric plate ...
XuDong Wang   +3 more
doaj   +1 more source

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

Surface Displacements under Harmonic Concentration

open access: yes, 2013
Expressions are obtained for the surface displacements over a thermodiffusive elastic half space in which the concentration is assumed to be a harmonic function. As expected, these expressions are found to be extensions of the classical results. Some
Mathai, Elizabeth
core   +2 more sources

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

open access: yesFEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

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