Results 61 to 70 of about 45,505 (183)

Diverse lithologies in Bennu stones revealed using X‐ray computed tomography under pristine conditions

Meteoritics &Planetary Science, EarlyView.
Abstract The OSIRIS‐REx mission collected a 121.6 g regolith sample from the surface of asteroid Bennu. Preliminary examination (PE) was conducted jointly by JSC Curation and the OSIRIS‐REx Sample Analysis Team. To enable advanced, non‐destructive characterization during PE, 59 centimeter‐scale stones were individually scanned using X‐ray computed ...
Scott A. Eckley, Nicole G. Lunning, Evan W. O'Neal, Julia Plummer, Rachel C. Funk, Curtis Calva, Wayland D. Connelly, Jannatul Ferdous, Gabriel C. Garcia, Neftali Hernandez, Gabriel Lugo, Salvador Martinez, Maritza Montoya, Erika V. Rivera, Daniel J. Rohmer, Francis M. McCubbin, Jemma Davidson, Timothy J. McCoy, Sara S. Russell, Pierre Haenecour, Jason P. Dworkin, Harold C. Connolly Jr., Dante S. Lauretta   +22 more
wiley   +1 more source

Mise en équation d'un capteur RMN bi-canaux

, 2011
International audienceLes capteurs multicanaux sont de plus en plus utilisés en RMN du petit animal. Dans ce travail nous présentons la mise en équation d'un capteur RMN bi-canaux par une approche de transformation d'impédance.
Beuf, Olivier, Litaudon, Philippe, Ravel, Nadine, Grenier, Denis, Perrier, Anne-Laure, Esclassan, Frederic, Pouzin, Audrey   +6 more
core   +4 more sources

Tripartite assembly of RND multidrug efflux pumps

Nature Communications, 2016
Tripartite efflux systems consist of inner membrane, outer membrane and periplasmic components. Here, Daury et al. reconstitute native versions of RND transporters in nanodiscs and present projection structures emphasizing the role of the periplasmic ...
Laetitia Daury, François Orange, Jean-Christophe Taveau, Alice Verchère, Laura Monlezun, Céline Gounou, Ravi K. R. Marreddy, Martin Picard, Isabelle Broutin, Klaas M. Pos, Olivier Lambert   +10 more
doaj   +1 more source

Efficacy of Physical Therapy on Maximal Mouth Opening in Patients Affected by Disc Displacement and Degenerative Temporomandibular Joint Diseases: A Systematic Review

Oral Diseases, EarlyView.
ABSTRACT Background Among temporomandibular disorders (TMDs), the main arthrogenic entities are disc‐condylar complex disorders and degenerative diseases. Objective This systematic review aimed to evaluate the effectiveness of physiotherapy in patients with temporomandibular joint (TMJ) disorders. Methods A systematic review was conducted across PubMed,
Martina Ferrillo, Alfredo De Rosa, Vincenzo Quinzi, Chiara Conte, Antonio Francica, Antonio Ammendolia, Amerigo Giudice, Alessandro de Sire   +7 more
wiley   +1 more source

Navigating the Zero Fluoroscopy Frontier: Current Tools, Evidence and Future Directions in Electrophysiology Procedures

Pacing and Clinical Electrophysiology, EarlyView.
Graphical Abstract ABSTRACT Fluoroscopy has traditionally been the mainstay imaging technique for guidance during electrophysiology (EP) ablation procedures. The numerous disadvantages associated with radiation exposure for both operators and patients have created the need for zero‐fluoroscopy (ZF) approaches. Today, electrophysiologists have access to
Dimitrios Kotzadamis, Georgios Giannopoulos, Vaios Schismenos, Alexandros Evangeliou, Prokopios Mamolis, Antonios Antoniadis, Vassilios Vassilikos   +6 more
wiley   +1 more source

COMPLETA ASIGNACIÓN DE LOS ESPECTROS DE 1H Y 13C RMN DE DOS GUAYANOLIDAS CONOCIDAS AISLADAS DE Centaurea musimomum

Revista Colombiana de Química, 2008
Se complementan los datos espectroscópicos de dos guayanolidas conocidas aisladas de C. musimomum por 1H, 13C y 2D RMN (HSQC, HMBC, 1H-1H COSY).
K. Medjroubi, F. Benayachel, F. León, J. Bermejo   +3 more
doaj  

SINTEZA ȘI STUDIUL LIGANZILOR ȘI COMPUSULUI COORDINATIV AL OXOVANADIULUI(IV) ÎN BAZA HIDRAZIDEI ACIDULUI IZONICOTINIC ȘI S-METILTIOSEMICARBAZIDEI

Acta et Commentationes: Ştiinţe Exacte şi ale Naturii, 2019
Au fost sintetizați doi liganzi: izonicotinoilhidrazona 1-fenil-1,3-butandionei (L1 ) și S-metiltiosemicarbazona o-vanilinei (L2 ) și un compus coordinativ al oxovanadiului IV [VOL1 (OCH3)]2 și investigați cu spectroscopia RMN 1H și 13C RMN ...
Mihaela ROTARU, Maria COCU
doaj   +1 more source

Effects of essential amino acids on phagostimulation and reproduction in adults of the Mediterranean fruit fly Efectos de amino ácidos esenciales en la fago‐estimulación y reproducción en adultos de la mosca de las frutas del Mediterráneo

Physiological Entomology, EarlyView.
The phagostimulation and reproductive effects of individual essential amino acids, without other nutrient except fructose, were investigated. Methionine, Arginine and Leucine display significantly higher phagostimulation strength than fructose. Arginine and Methionine showed a significant improvement in reproductive activity compared to other tested ...
David Nestel, Eleni Verykouki, Santiago J. Aguirre‐Ibáñez, Martha N. Guillen‐Rivera, Carlos Pascacio‐Villafán, Polychronis Rempoulakis, M. Teresa Vera   +6 more
wiley   +1 more source

RMN du

, 2017
Pour des alcynes ramifiés, nous avons caractérisé en RMN du 13C l’influence des substitutions alcoyles sur les déplacements chimiques des carbones sp.
Jean-Pierre Doucet, Jean-Michel Kornprobst   +1 more
core   +1 more source

Qualificação e quantificação de óleo fixo em sementes de Sacha inchi e seus produtos por RMN. [PDF]

, 2020
Este trabalho visa qualificar o teor de óleo fixo extraído de amêndoas de Sacha inchi por RMN 1H de três acessos (dois brasileiros e um peruano) nos meses de outubro e novembro de 2018, bem como quantificar, por RMN-DT, o teor lipídico nas amêndoas e na ...
PRESTES, M. L. D. de A., MARINHO, M. O., QUEIROZ, L. C. de, CHAVES, F. C. M., DAIRIKI, J. K., MACHADO, M. B.   +5 more
core