Results 191 to 200 of about 95,743 (302)

Land birds on atolls: diversity, origin, and function

open access: yesBiological Reviews, EarlyView.
ABSTRACT Oceanic islands are global hotspots of avian biodiversity and endemism. Their isolation and distinct environmental conditions have uniquely shaped the evolutionary trajectories of island birds, while, in turn, land bird communities have become critical providers of ecological functions to island ecosystems.
Sebastian Steibl   +6 more
wiley   +1 more source

Clinical Outcomes of the Allegra Transcatheter System in Bioprosthetic Aortic Valve Failure: A Multicentre Valve‐in‐Valve Registry

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT Introduction The prevalence of bioprosthetic aortic valve failure is increasing due to the broader use of bioprosthetic valves, both surgical and transcatheter, and an ageing population. Registry data indicate a higher risk of coronary obstruction and elevated gradients following valve‐in‐valve transcatheter aortic valve implantation (TAVI ...
Hilal Khan   +14 more
wiley   +1 more source

Characterization of the Interaction of Known G‐quadruplex Ligands With a Minimal i‐Motif Structure

open access: yesChemistry – A European Journal, EarlyView.
The destabilization of a minimal i‐Motif (iM) structure by TMPyP4 is driven by ligand recognition of one terminal iM structural domain. ABSTRACT Peculiar genomic regions are prone to evolve transiently from double‐helix DNA to noncanonical secondary structures in response to physiological stress.
Davide Auricchio   +3 more
wiley   +1 more source

DNA Nanotechnology Meets Peptide and Protein Self‐Assembly

open access: yesChemistry – A European Journal, EarlyView.
Combining DNA nanotechnology with peptide and protein assembly provides complementary platforms for the rational engineering of functional biomaterials. This Perspective discusses the emerging field of self‐assembling DNA‐peptide and DNA‐protein hybrid systems that combine the structural precision and programmability of DNA nanotechnology with the ...
Marcel Hanke   +4 more
wiley   +1 more source

Hercules Brabazon Brabazon 1821-1906

open access: yes, 1989
Chris Beetles Ltd. (London)
core  

Reverse Engineering and Performance Evaluation of a Pump Impeller Fabricated With Additive Manufacturing

open access: yesChemie Ingenieur Technik, EarlyView.
This study explores the process chain for reverse engineering and additive manufacturing of a water pump impeller in a process plant. Key aspects include digital twin creation, CAD redesign, material certification, Hirtisation postprocessing, and performance testing. Insights highlight iterative design for improved precision and reliability.
Michael Stadler   +3 more
wiley   +1 more source

Home - About - Disclaimer - Privacy