Results 141 to 150 of about 1,407,102 (317)

Extending Event-B with discrete timing properties

open access: yes, 2013
Event-B is a formal language for systems modelling, based on set theory and predicate logic. It has the advantage of mechanized proof, and it is possible to model a system in several levels of abstraction by using refinement.
Sarshogh, Mohammad Reza
core  

Timing requirement description diagrams for real-time system verification [PDF]

open access: yes, 2008
TURTLE is a real-time UML profile introduced a few years ago to address the analysis, design and deployment of time-constrained systems. The profile has a formal semantics. Further, it is supported by an open source toolkit: TTool.
Fontan, B   +5 more
core  

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

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

Author Correction: Distinct circadian mechanisms govern cardiac rhythms and susceptibility to arrhythmia

open access: yesNature Communications, 2021
Edward A. Hayter   +12 more
doaj   +1 more source

Time, it needs time [PDF]

open access: yesThe Journal of Thoracic and Cardiovascular Surgery, 2015
openaire   +2 more sources

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

Housing Wealth and Retirement Timing [PDF]

open access: yes
We use data from the Health and Retirement Study (HRS) and the Office of Housing Enterprise Oversight to measure the effect of changes in housing wealth on retirement timing.
Martin Farnham, Purvi Sevak
core  

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

Actual share repurchases, timing and liquidity [PDF]

open access: yes
Research on the impact of open market share repurchases has been hindered by the lack of data available on actual share repurchases in many countries, including the US.
Jacques Hamon, Edith Ginglinger
core  

Home - About - Disclaimer - Privacy