Results 71 to 80 of about 2,398,337 (305)

Dual and generalized dual cones in Banach spaces

open access: yesOptimization Letters
Abstract This paper proposes and analyzes the notion of dual cones associated with the metric projection and generalized projection in Banach spaces. We show that the dual cones, related to the metric projection and generalized metric projection, lose many important properties in transitioning from Hilbert spaces to Banach spaces.
Akhtar A. Khan, Dezhou Kong, Jinlu Li
openaire   +3 more sources

On dual-Bimodules

open access: yesTsukuba Journal of Mathematics, 1992
The following concept of dual-bimodules is introduced, a generalization of dual rings [\textit{C. R. Hajaranvis}, \textit{N. C. Norton}: J. Algebra 93, 253-266 (1985; Zbl 0595.16009)] and in particular of quasi-Frobenius rings: Let \(R\) and \(S\) be rings with identity.
Kurata, Y., Hashimoto, K.
openaire   +2 more sources

The Altitude Adaptive Dual Bell Nozzle [PDF]

open access: yes, 2012
The dual bell nozzle has been found out to be one of the most promising concepts for alti-tude adaption of the nozzle jet. The wall contour inflection linking the base nozzle with the ex-tension provides two stable operating modes, circumventing the area
Génin, Ch.   +3 more
core  

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

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

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

Dual left ventricular pseudoaneurysms following osteomyelitis of the femur in a child

open access: yesAnnals of Pediatric Cardiology
Left ventricular pseudoaneurysm is a rare complication following infective pericarditis in children. We report a very rare case of dual left ventricular pseudoaneurysms in a 4-year-old girl, who was diagnosed following osteomyelitis of the right femur ...
Samir Shakya   +3 more
doaj   +1 more source

Mapping of dual-use related intangible technology transfers in EUP2P partner countries and other third countries through "TIM Dual-Use"

open access: yes, 2022
Mapping of Dual-Use related ITTs in EUP2P partner countries and other third countries through “TIM Dual ...
Guest, Clara   +2 more
core  

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

open access: yesFEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi   +6 more
wiley   +1 more source

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