Results 11 to 20 of about 622,951 (269)

Silicon-Based Multilayer Waveguides for Integrated Photonic Devices from the Near to Mid Infrared

open access: yesApplied Sciences, 2021
Advancements in spectroscopy, quantum optics, communication, and sensing require new classes of integrated photonic devices to host a wide range of non-linear optical processes involving wavelengths from the visible to the infrared.
Iñaki López García   +5 more
doaj   +1 more source

α-catenin switches between a slip and an asymmetric catch bond with F-actin to cooperatively regulate cell junction fluidity

open access: yesNature Communications, 2022
By using laser tweezers, the authors show that a single α-catenin molecule does not resist force on F-actin. However, clustering of multiple molecules and force applied toward F-actin pointed end engage a molecular switch in α-catenin, which unfolds and ...
C. Arbore   +8 more
doaj   +1 more source

Vesicular Trafficking, a Mechanism Controlled by Cascade Activation of Rab Proteins: Focus on Rab27

open access: yesBiology, 2023
Vesicular trafficking is essential for the cell to internalize useful proteins and soluble substances, for cell signaling or for the degradation of pathogenic elements such as bacteria or viruses.
Camille Menaceur   +4 more
doaj   +1 more source

Assessing brain state and anesthesia level with two-photon calcium signals

open access: yesScientific Reports, 2023
Brain states, such as wake, sleep, or different depths of anesthesia are usually assessed using electrophysiological techniques, such as the local field potential (LFP) or the electroencephalogram (EEG), which are ideal signals for detecting activity ...
Núria Tort-Colet   +5 more
doaj   +1 more source

Highlighting In Vitro the Role of Brain-like Endothelial Cells on the Maturation and Metabolism of Brain Pericytes by SWATH Proteomics

open access: yesCells, 2023
Within the neurovascular unit, brain pericytes (BPs) are of major importance for the induction and maintenance of the properties of the blood-brain barrier (BBB) carried by the brain microvessel endothelial cells (ECs).
Camille Menaceur   +9 more
doaj   +1 more source

Some counterexamples for (strong) persistence property and (nearly) normally torsion-freeness

open access: yesExamples and Counterexamples, 2023
In this article, we present some rare counterexamples, which are related to (strong) persistence property and (nearly) normally torsion-freeness of monomial ideals.
Mehrdad Nasernejad
doaj   +1 more source

The Blood–Brain Barrier, an Evolving Concept Based on Technological Advances and Cell–Cell Communications

open access: yesCells, 2021
The construction of the blood–brain barrier (BBB), which is a natural barrier for maintaining brain homeostasis, is the result of a meticulous organisation in space and time of cell–cell communication processes between the endothelial cells that carry ...
Camille Menaceur   +3 more
doaj   +1 more source

Miniaturization and Automation of a Human In Vitro Blood–Brain Barrier Model for the High-Throughput Screening of Compounds in the Early Stage of Drug Discovery

open access: yesPharmaceutics, 2021
Central nervous system (CNS) diseases are one of the top causes of death worldwide. As there is a difficulty of drug penetration into the brain due to the blood–brain barrier (BBB), many CNS drugs treatments fail in clinical trials.
Elisa L. J. Moya   +7 more
doaj   +1 more source

Hydrophobic versus hydrophilic acrylic intraocular lens on posterior capsule opacification: a Meta-analysis [PDF]

open access: yesInternational Journal of Ophthalmology, 2022
AIM: To conduct a Meta-analysis pooling randomized controlled trials (RCTs) to compare hydrophobic with hydrophilic acrylic intraocular lenses in terms of posterior capsule opacification (PCO) development.
Qiong Wu, Yan Li, Lian Wu, Cong-Yi Wang
doaj   +1 more source

Colored visual stimuli evoke spectrally tuned neuronal responses across the central nervous system of zebrafish larvae

open access: yesBMC Biology, 2020
Background Visually guided behaviors such as optomotor and optokinetic responses, phototaxis, and prey capture are crucial for survival in zebrafish and become apparent after just a few days of development.
Chiara Fornetto   +3 more
doaj   +1 more source

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