Results 21 to 30 of about 95,308 (203)

Quantitative phase microscopy for non-invasive live cell population monitoring

open access: yesScientific Reports, 2021
We present here a label-free development based on preexisting Quantitative Phase Imaging (QPI) that allows non-invasive live monitoring of both individual cells and cell populations.
Sherazade Aknoun   +7 more
doaj   +1 more source

Relationships between serotonin availability and frontolimbic response to fearful and threatening faces

open access: yesScientific Reports, 2023
Serotonin is a critical neurotransmitter in the regulation of emotional behavior. Although emotion processing is known to engage a corticolimbic circuit, including the amygdala and prefrontal cortex, exactly how this brain system is modulated by ...
R. Janet   +4 more
doaj   +1 more source

A 2-dimensional Geometry for Biological Time [PDF]

open access: yes, 2011
This paper proposes an abstract mathematical frame for describing some features of biological time. The key point is that usual physical (linear) representation of time is insufficient, in our view, for the understanding key phenomena of life, such as ...
Bailly   +29 more
core   +4 more sources

Deletion of Proton Gradient Regulation 5 (PGR5) and PGR5-Like 1 (PGRL1) proteins promote sustainable light-driven hydrogen production in Chlamydomonas reinhardtii due to increased PSII activity under sulfur deprivation

open access: yesFrontiers in Plant Science, 2015
Continuous hydrogen photo-production under sulfur deprivation was studied in the Chlamydomonas reinhardtii pgr5 pgrl1 double mutant and respective single mutants.
Janina eSteinbeck   +8 more
doaj   +1 more source

VEGF-A/Notch-Induced Podosomes Proteolyse Basement Membrane Collagen-IV during Retinal Sprouting Angiogenesis

open access: yesCell Reports, 2016
During angiogenic sprouting, endothelial tip cells emerge from existing vessels in a process that requires vascular basement membrane degradation. Here, we show that F-actin/cortactin/P-Src-based matrix-degrading microdomains called podosomes contribute ...
Pirjo Spuul   +7 more
doaj   +1 more source

Endurance Exercise Ability in the Horse: A Trait with Complex Polygenic Determinism

open access: yesFrontiers in Genetics, 2017
Endurance horses are able to run at more than 20 km/h for 160 km (in bouts of 30–40 km). This level of performance is based on intense aerobic metabolism, effective body heat dissipation and the ability to endure painful exercise.
Anne Ricard   +12 more
doaj   +1 more source

Proteomic Study of SUMOylation During Solanum tuberosum–Phytophthora infestans Interactions

open access: yesMolecular Plant-Microbe Interactions, 2017
Invasive plant pathogens have developed the ability to modify the metabolism of their host, promoting metabolic processes that facilitate the growth of the pathogen at the general expense of the host.
Bertrand Colignon   +6 more
doaj   +1 more source

The genome and diet of a 35,000‐year‐old Canis lupus specimen from the Paleolithic painted cave, Chauvet‐Pont d'Arc, France

open access: yesEcology and Evolution, 2022
The Chauvet‐Pont‐d'Arc Cave (Ardèche, France) contains some of the oldest Paleolithic paintings recorded to date, as well as thousands of bones of the extinct cave bear, and some remains and footprints of other animals.
Jean‐Marc Elalouf   +6 more
doaj   +1 more source

Bioart et bioéthique. Compte-rendu de Bioart : transformations du vivant, sous la direction d’Ernestine Daubner et Louise Poissant [PDF]

open access: yes, 2014
Compte-rendu / ReviewÀ travers des exemples d’œuvres bioartistiques et des réflexions sur celles-ci, l’ouvrage collectif Bioart : transformations du vivant met en exergue l’intérêt de cette approche artistique pour soulever les enjeux éthiques liés au ...
Lieutenant-Gosselin, Mélissa
core   +1 more source

Proximity‐Induced Transfer of a Mass Tag Enables Direct Profiling of Active Matrix Metalloproteases

open access: yesAngewandte Chemie International Edition, EarlyView.
A proximity‐induced, mass‐encoded activity‐based protein profiling (ABPP) approach transfers a MALDI‐detectable α‐cyano‐4‐hydroxycinnamic acid (CHCA) tag directly to active proteases. This tag enables the direct, multiplexed, and quantitative detection of enzyme activity in complex proteomes without enrichment or purification.
Lomane Berthy   +20 more
wiley   +1 more source

Home - About - Disclaimer - Privacy