Results 21 to 30 of about 446,693 (296)

Hémangiome vertébral neuro-agressif de révélation tardive: cas clinique

open access: yesThe Pan African Medical Journal, 2020
Dans la majorité des cas asymptomatiques, les hémangiomes vertébraux peuvent être, dans de rares cas, symptomatiques avec des manifestations cliniques purement neurologiques.
Komi Ignéza Agbotsou   +5 more
doaj   +1 more source

Hierarchical nickel valence gradient stabilizes high-nickel content layered cathode materials

open access: yesNature Communications, 2021
High-nickel content cathode materials offer high energy density. However, the structural and surface instability may cause poor capacity retention and thermal stability of them.
Ruoqian Lin   +16 more
semanticscholar   +1 more source

Focus sur le projet « Z », un espace de production de fruits renforçant les régulations biologiques dans un objectif zéro phyto

open access: yesSciences, Eaux & Territoires, 2022
Comment produire des fruits tout en renforçant le service écosystémique de régulation des bio-agresseurs pour limiter voire supprimer l’utilisation des pesticides ?
Sylvaine SIMON   +2 more
doaj   +1 more source

Lattice oxygen activation enabled by high-valence metal sites for enhanced water oxidation

open access: yesNature Communications, 2020
Anodic oxygen evolution reaction (OER) is recognized as kinetic bottleneck in water electrolysis. Transition metal sites with high valence states can accelerate the reaction kinetics to offer highly intrinsic activity, but suffer from thermodynamic ...
Ning Zhang   +9 more
semanticscholar   +1 more source

Valence Sequences [PDF]

open access: yesProceedings of the American Mathematical Society, 1980
Let V 0 , V 1 , … , V k , … {V_0},{V_1}, \ldots ,{V_k}, \ldots be an infinite sequence of positive integers (where we include ∞
openaire   +1 more source

Application de la résonance magnétique nucléaire du proton au dosage de l'éthanol dans les boissons alcoolisées

open access: yesOENO One, 1989
Une équation pour le calcul de la teneur en éthanol basée sur les surfaces d'un spectre (H1-RMN) (Résonance magnétique du proton) est décrite. Les résultats obtenus par application de cette équation dans le vin et dans les boissons alcoolisées sont ...
J. L. Guiñon, M. Belanche
doaj   +1 more source

A Case of Delayed Diagnosis of Bilateral Ureteral and Bladder Injury after Laparoscopic Hysterectomy: An Unusual Complication

open access: yesCase Reports in Urology, 2012
The incidence of ureteral and bladder lesions after laparoscopic hysterectomy is the most encountered urinary complication in gynaecological surgery. We report the unusual case of 42-year-old woman who had a delayed diagnosis of bilateral ureteral injury
Maximilien C. Goris-Gbenou   +4 more
doaj   +1 more source

Photoswitchable mixed valence [PDF]

open access: yesChemical Society Reviews, 2012
For a molecular electronics technology to be fully serviceable, switching functions will be indispensable. Specifically, it will be desirable to control the conductivity of a given molecule using an external stimulus. This tutorial review discusses photoswitchable mixed valence systems that are comprised of a reversibly photoisomerizable bridging unit ...
openaire   +5 more sources

Genetically identified amygdala-striatal circuits for valence-specific behaviors

open access: yesNature Neuroscience, 2021
The basolateral amygdala (BLA) plays essential roles in behaviors motivated by stimuli with either positive or negative valence, but how it processes motivationally opposing information and participates in establishing valence-specific behaviors remains ...
Xian Zhang   +14 more
semanticscholar   +1 more source

Transient Headache and Neurological Deficits with Cerebrospinal Fluid Lymphocytosis Associated with IgM Antibodies to the Epstein-Barr Virus Viral Capsid Antigen

open access: yesCase Reports in Neurological Medicine, 2013
Some authors have suggested that the syndrome of transient headache and neurological deficits with cerebrospinal fluid lymphocytosis (HaNDL) results from an immunological response directed against a viral agent.
Kossivi Apetse   +6 more
doaj   +1 more source

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