Results 61 to 70 of about 10,314,776 (281)

Désherbage des sols céréaliers cultivés en semis direct (région des hauts plateaux Algériens) par utilisation de l’extrait aqueux des feuilles d'Eucalyptus globulus

open access: yesRevue Marocaine des Sciences Agronomiques et Vétérinaires, 2019
Les céréales et le blé dur en particulier, revêtent une importance cruciale dans de nombreux pays dont l'Algérie aussi bien sur le plan agronomique que sur le plan socio-économique. Ainsi, pour réaliser la sécurité alimentaire durable, il faut améliorer
Mostefa KOUADRIA   +2 more
doaj  

Heterotropic regulation and negative homotropic cooperativity

open access: yesFEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea   +5 more
wiley   +1 more source

La gestion des écosystèmes cultivés en semis direct sur couverture végétale permanente.

open access: yes, 2009
Ouvrage de vulgarisation In : Manuel pratique du semis direct à Madagascar. Volume I. Chapitre 2.
Séguy, L.   +12 more
core  

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

open access: yesFEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain   +11 more
wiley   +1 more source

Le choix des itinéraires techniques : Chapitre 2. La mise en place de systèmes de culture en semis direct.

open access: yes, 2009
Ouvrage de vulgarisation In : Manuel pratique du semis direct à Madagascar. Volume II .
Moussa, N.   +21 more
core  

Robust, affordable, semi-direct Mars mission [PDF]

open access: yesActa Astronautica, 2016
Abstract A new architecture is proposed for the first manned Mars mission, based on current NASA developments (SLS and Orion), chemical propulsion for interplanetary transit, aerocapture for all vehicles, a split strategy, and a long stay on the surface.
openaire   +2 more sources

Lagrangian Mechanics on Centered Semi-direct Products [PDF]

open access: yes, 2015
Comments Welcome!
Colombo, Leonardo J., Jacobs, Henry O.
openaire   +2 more sources

MARK4 enhances stress granule formation under oxidative stress and increases tau accumulation

open access: yesFEBS Open Bio, EarlyView.
MARK4 (red dots) localizes to stress granules (orange dots) and promotes their formation under oxidative stress by modulating TIA1 (blue dots). MARK4 and TIA1 synergistically increase tau (purple) accumulation, and the reduction of the TIA1 ortholog suppresses neurodegeneration in a fly model.
Sho Nakajima   +8 more
wiley   +1 more source

Using fluorescence fluctuation spectroscopy to quantify molecular dynamics within cells

open access: yesFEBS Open Bio, EarlyView.
Microscopy techniques like fluorescence correlation spectroscopy (FCS) and number and brightness analysis (N&B) allow to quantify concentrations, diffusion rates, and oligomerization of fluorescently labeled molecules in the living cell. In this protocol the principles of how to set up these types of experiments are described including calibration ...
Mark A. Hink
wiley   +1 more source

Semis direct de riz pluvial sur couverture d'avoine. Pour les rizières avec mauvais contrôle de l'eau [PDF]

open access: yes, 2002
Pour les rizières avec un mauvais contrôle de l'eau (terrasses sans accès à l'eau par exemple), le semis direct de variétés de riz pluvial ou mixtes (irrigué x pluvial) sur une couverture végétale d'avoine peut être proposé.
Séguy, Lucien   +4 more
core  

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