Results 41 to 50 of about 791,711 (328)

Thermal neutrino portal to sub-MeV dark matter [PDF]

Physical Review D, 2018
Thermal relics lighter than an MeV contribute to the energy density of the universe at the time of nucleosynthesis and recombination. Constraints on extra radiation degrees of freedom typically exclude even the simplest of such dark sectors.
A. Berlin, N. Blinov
semanticscholar   +1 more source

Analysis of Sugar Component of a Hot Water Extract from Arabidopsis thaliana Pollen Tubes Using GC-EI-MS

Bio-Protocol, 2015
Extraction with hot water is the oldest and simplest method used to recover pectin from an alcohol insoluble residue extract, although this method has not been widely used for the cell wall analysis of pollen tube, a model used to study cell wall.
Marie Dumont, Arnaud Lehner, Corinne Loutelier-Bourhis, Jean-Claude Mollet, Patrice Lerouge   +4 more
doaj   +1 more source

Characterization of a GDP-Fucose Transporter and a Fucosyltransferase Involved in the Fucosylation of Glycoproteins in the Diatom Phaeodactylum tricornutum

Frontiers in Plant Science, 2019
Although Phaeodactylum tricornutum is gaining importance in plant molecular farming for the production of high-value molecules such as monoclonal antibodies, little is currently known about key cell metabolism occurring in this diatom such as protein ...
Peiqing Zhang, Carole Burel, Carole Burel, Carole Plasson, Carole Plasson, Marie-Christine Kiefer-Meyer, Marie-Christine Kiefer-Meyer, Clément Ovide, Clément Ovide, Bruno Gügi, Bruno Gügi, Corrine Wan, Gavin Teo, Amelia Mak, Zhiwei Song, Azeddine Driouich, Azeddine Driouich, Patrice Lerouge, Patrice Lerouge, Muriel Bardor, Muriel Bardor, Muriel Bardor   +21 more
doaj   +1 more source

In Vitro Proliferation and Production of Cytokine and IgG by Human PBMCs Stimulated with Polysaccharide Extract from Plants Endemic to Gabon

Molecules, 2014
Polysaccharides were extracted from seven plants endemic to Gabon to study their potential immunological activities. Peripheral blood mononuclear cell (PBMC) (5 × 105 cells/mL) proliferation, cytokine and immunoglobulin G (IgG) assays were performed ...
Line Edwige Mengome, Aline Voxeur, Jean Paul Akue, Patrice Lerouge   +3 more
doaj   +1 more source

Electron Acceleration to MeV Energies at Jupiter and Saturn

Journal of Geophysical Research - Space Physics, 2018
The radiation belts and magnetospheres of Jupiter and Saturn show significant intensities of relativistic electrons with energies up to tens of megaelectronvolts (MeV).

semanticscholar   +1 more source

meV Resolution in Laser-Assisted Energy-Filtered Transmission Electron Microscopy [PDF]

, 2017
The electronic, optical, and magnetic properties of quantum solids are determined by their low-energy (
E. Pomarico, I. Madan, G. Berruto, G. Vanacore, Kangpeng Wang, I. Kaminer, J. F. Garcia de Abajo, F. Carbone   +7 more
semanticscholar   +1 more source

Neonatal stroke enhances interaction of microglia-derived extracellular vesicles with microglial cells

Neurobiology of Disease, 2021
Microglial cells support brain homeostasis under physiological conditions and modulate brain injury in a context-dependent and brain maturation-dependent manner. Microglial cells protect neonatal brain from acute stroke.
Matthieu Lecuyer, Praneeti Pathipati, Joel Faustino, Zinaida S. Vexler   +3 more
doaj   +1 more source

Further search for a neutral boson with a mass around 9 MeV/c2 [PDF]

, 2001
Two dedicated experiments on internal pair conversion (IPC) of isoscalar M1 transitions were carried out in order to test a 9 MeV/c2 X-boson scenario. In the 7Li(p,e+e-)8Be reaction at 1.1 MeV proton energy to the predominantly T=0 level at 18.15 MeV, a ...
Asakimori K, Asakimori K, Buda A, Buda A, de Boer F W N, de Boer F W N, de Boer F W N, de Boer F W N, de Shalit A, Fröhlich O, Goldring G, Paul P, Schadmand S, Skorka S J, Stiebing K E, Wilczynski H   +15 more
core   +2 more sources

Novel Cosmic-Ray Electron and Positron Constraints on MeV Dark Matter Particles. [PDF]

Physical Review Letters, 2016
MeV dark matter (DM) particles annihilating or decaying to electron-positron pairs cannot, in principle, be observed via local cosmic-ray (CR) measurements because of the shielding solar magnetic field.
M. Boudaud, J. Lavalle, P. Salati
semanticscholar   +1 more source

A Simple Protocol for the Immunolabelling of Arabidopsis Pollen Tube Membranes and Cell Wall Polymers

Bio-Protocol, 2015
The pollen tube, a fast tip-growing cell, is an excellent model to study membrane and cell wall biosynthesis. Here, we describe a simple protocol using an easy to use device to perform immunofluorescence labelling of pollen tube membrane and cell wall ...
Marie Dumont, Céline Cataye, Arnaud Lehner, Eric Maréchal, Patrice Lerouge, Denis Falconet, Jean-Claude Mollet   +6 more
doaj   +1 more source