Results 191 to 200 of about 59,486 (332)

Integrated optical sigma-delta modulators

, 1995
Modern avionics equipment, such as super resolution direction-finding systems, now require resolutions on the order of 20 to 22 bits. Oversampled analog-to-digital converter architectures offer a means of exchanging resolution in time for that in amplitude and represent an attractive approach to implementing precision converters without the need for ...
openaire   +1 more source

Human Brain Vasculature‐on‐a‐Chip Model Constructed With Microvessels Isolated From Cryopreserved Postmortem Human Brain Tissue

Advanced Healthcare Materials, EarlyView.
This manuscript describes the cultivation of viable microvessels from cryopreserved human brain tissue. When embedded in hydrogels and cultured in microfluidic devices, these microvessels exhibit complex architectures reminiscent of arterioles and capillaries, can be perfused, and display intact barrier function. Collectively, these results demonstrate
Brian J. O'Grady, A. Scott McCall, Samuel Cullison, Daniel Chavarria, Matthew S. Schrag, Ethan S. Lippmann   +5 more
wiley   +1 more source

The Role of Insular Cortex and Prefrontal Cortex in the Pathogenesis of Fibromyalgia: Biochemical and Electrophysiological Rodent Study. [PDF]

Neurochem Res
Abouelnaga AF, Hussein AM, Abass M, Shafiek MZ, Zaki HF, Mohamed AF, Ibrahim WW.   +6 more
europepmc   +1 more source

Génération numérique de signaux RF pour les terminaux de communication mobile par modulation delta-sigma

, 2007
Antoine Frappé
openalex   +1 more source

Multi-stage sigma delta modulators. [PDF]

, 2018
openaire   +1 more source

Dual‐Functional Polyphosphoesters for Gene Delivery: Synergistic Effects of Guanidinium and Hydrophobic Side Chains in Degradable Polymers

Advanced Healthcare Materials, EarlyView.
This study presents guanidinium‐ and indole‐functionalized polyphosphoesters as degradable, non‐viral gene delivery vectors. Through precise tuning of charge density and hydrophobicity, these polymers form stable polyplexes with low toxicity. Remarkably, minor structural changes yield up to 200‐fold differences in transfection efficiency, highlighting ...
Markus Kötzsche, Andreas Dzierza, Jan Egger, Timo Rheinberger, Christin Weilandt, Frederik R. Wurm, Ivo Nischang, Dagmar Fischer, Kalina Peneva   +8 more
wiley   +1 more source

Tonic-clonic seizures induce hypersomnia and suppress rapid eye movement sleep in mouse models of epilepsy. [PDF]

Sleep Adv
Wang R, Teng S, Turanchik M, Zhen F, Peng Y.   +4 more
europepmc   +1 more source

Video Transmission by Delta-Sigma Modulation

, 1963
Hiroshi Takano, Yasuhiko Yasuda, Hiroshi Inose   +2 more
openalex   +2 more sources

Tunable Bioresorbable Scaffolds With Marine Sulfated Polysaccharides for Small‐Caliber Vascular Grafts: A Multi‐Layered Strategy Combining Electrospinning and 4‐Axis Printing

Advanced Healthcare Materials, EarlyView.
A multilayered small‐caliber vascular scaffold combining electrospinning and 4‐axis printing is developed and biofunctionalized with marine sulfated polysaccharides from Holothuria tubulosa. The resulting construct exhibits enhanced hemocompatibility, tunable mechanical properties, and supports endothelial and smooth muscle cell adhesion and ...
Gabriele Obino, Alberto Sensini, Tim ten Brink, Gabriele Nieddu, Tristan Bodet, Giovanni Andrea Deiana, Martijn van Griensven, Marilena Formato, Antonio J. Lepedda, Lorenzo Moroni   +9 more
wiley   +1 more source

Suk-SaiYasna Remedy, a Traditional Thai Medicine, Mitigates Stress-Induced Cognitive Impairment via Keap1-Nrf2 Pathway. [PDF]

Int J Mol Sci
Masraksa W, Daodee S, Monthakantirat O, Boonyarat C, Khamphukdee C, Kwankhao P, Mading A, Muenhong P, Maneenet J, Awale S, Matsumoto K, Chulikhit Y.   +11 more
europepmc   +1 more source