Results 141 to 150 of about 20,949 (333)

Harnessing Synergistic Cooperation of Neighboring Active Motifs in Heterogeneous Catalysts for Enhanced Catalytic Performance

open access: yesAdvanced Materials, EarlyView.
This review examines the critical role of neighboring active motifs in heterogeneous catalysts, emphasizing how their synergistic cooperativity can be rationally designed to modulate catalytic properties. The discussion centers on the modulation of electronic and geometric structures, categorizing the catalytic systems into metal‐acid (Brønsted/Lewis ...
Peng Yuan   +2 more
wiley   +1 more source

Mechanisms of Supraventricular Tachycardia [PDF]

open access: yes, 1973
In summary, we have found a close association between the stress of A-V nodal conduction and the occurrence of atrial dispersion or aberration. We could not explain atrial dispersion on the basis of incomplete recovery of atrial activity, slowing of ...
Lazzara, Ralph, Scherlag, Benjamin J.
core   +1 more source

Designing Physical Unclonable Functions From Optically Active Materials

open access: yesAdvanced Materials, EarlyView.
Assigning unforgeable “fingerprints” to manufactured goods is a key strategy to fight global counterfeiting. Optical physical unclonable functions (PUFs) are chemically generated random patterns of optically active materials serving as unique authenticators.
Maxime Klausen   +2 more
wiley   +1 more source

Idiopathic Epicardial Ventricular Arrhythmias: Diagnosis and Ablation Technique from the Aortic Sinus of Valsalva [PDF]

open access: yes, 2005
Idiopathic outflow tract arrhythmias (ventricular tachycardias or symptomatic premature ventricular contractions; OT-VT/PVCs) can originate from the left ventricular (LV) epicardium (Epi-VT/PVCs), and radiofrequency (RF) energy applications from the ...
Tada, Hiroshi
core   +1 more source

Volumetric 3D Printing and Melt‐Electrowriting to Fabricate Implantable Reinforced Cardiac Tissue Patches

open access: yesAdvanced Materials, EarlyView.
This study presents an implantable reinforced cardiac patch (RCPatch) combining volumetrically 3D‐printed metamaterials with melt‐electrowritten (MEW) meshes. The design integrates tunable stiff polymer structures with soft, cell‐laden hydrogels. The RCPatch withstands suturing, intraventricular pressure, and cardiac contraction in a large animal ...
Lewis S. Jones   +12 more
wiley   +1 more source

Hemodynamic Effects of Permanent His Bundle Pacing Compared to Right Ventricular Pacing Assessed by Two-Dimensional Speckle-Tracking Echocardiography [PDF]

open access: gold, 2021
Jędrzej Michalik   +6 more
openalex   +1 more source

Galvanic‐Cell‐Based Self‐Powered Bioelectronic Devices

open access: yesAdvanced Materials, EarlyView.
The emerging galvanic‐cell‐based self‐powered bioelectronics for biomedical applications with passive and active control strategies are summarized. In addition, the challenges and opportunities for galvanic devices are also discussed. Abstract Bioelectronic devices hold significant promise for advancing biomedical technologies, addressing critical ...
Yu Xin   +4 more
wiley   +1 more source

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