Results 161 to 170 of about 4,330,886 (309)

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

The Oxfordshire home visiting study : 3 year follow-up [PDF]

open access: yes, 2008
Background The Oxfordshire Home Visiting Study is one of the few UK-based randomised controlled trials to evaluate the effectiveness of a professionally delivered, intensive home visiting programme beginning during the antenatal period, in improving ...
Peters, Rebecca   +6 more
core  

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

Incidence and Predictors of Loss to Follow-Up Among ART Patients on Follow-Up at Public Health Facilities in Southwest Ethiopia. A Time-to-Event Analysis

open access: yesJournal of the International Association of Providers of AIDS Care
Background Loss to follow-up (LTFU) remains a major challenge to successful antiretroviral therapy (ART), contributing to increased morbidity, mortality, and drug resistance, particularly in Sub-Saharan Africa.
Oftana Daba MPH   +2 more
doaj   +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

Lexis: An R Class for Epidemiological Studies with Long-Term Follow-Up

open access: yes
The Lexis class in the R package Epi provides an object-based framework for managing follow-up time on multiple time scales, which is an important feature of prospective epidemiological studies with long duration.
Martyn Plummer, Bendix Carstensen
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

Orchidopexy Timing and Follow Up: From Guidelines to Clinical Practice

open access: yesDiagnostics
Background: Undescended testis (UDT) is the most frequent pediatric anomaly of the male genitals, with a high incidence in premature male neonates. Due to the risk of long-term complications such as infertility, testicular malignancy, and psychological distress, special attention on the accuracy of management is needed.
Cristina Gavrilovici   +10 more
openaire   +2 more sources

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

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