Results 81 to 90 of about 92,626 (194)

Sequential domain assembly of ribosomal protein S3 drives 40S subunit maturation

Nature Communications, 2016
Ribosome biogenesis involves the hierarchical assembly of several proteins and RNA components. Here the authors describe a mechanism for ribosomal protein S3 incorporation into 40S ribosomal subunits that involves S3 dimerization and stepwise ...
Valentin Mitterer, Guillaume Murat, Stéphane Réty, Magali Blaud, Lila Delbos, Tamsyn Stanborough, Helmut Bergler, Nicolas Leulliot, Dieter Kressler, Brigitte Pertschy   +9 more
doaj   +1 more source

1H NMR Analysis of Cerebrospinal Fluid from Alzheimer’s Disease Patients: An Example of a Possible Misinterpretation Due to Non-Adjustment of pH

Metabolites, 2014
Two publications from the same research group reporting on the detection of new possible biomarkers for the early diagnosis of Alzheimer’s disease (AD), based on the analysis of cerebrospinal fluid samples (CSF) with 1H Nuclear Magnetic Resonance (NMR ...
Thomas Cruz, Stéphane Balayssac, Véronique Gilard, Robert Martino, Christian Vincent, Jérémie Pariente, Myriam Malet-Martino   +6 more
doaj   +1 more source

Effect of temperature, oxidation time and substrate: oxidant agent ratio in the yield and composition of humic acids derived from coal, monitored by ¹H NMR and FT-ir

Revista Técnica de la Facultad de Ingeniería
Se estudió el rendimiento y composición de los ácidos húmicos (AH) obtenidos por oxidación de un carbón bituminoso venezolano con permanganato de potasio en medio alcalino bajo condiciones variables de temperatura, tiempo de reacción y relación sustrato:
Eliasara Contreras, Edgardo Leal, Manuel Martínez   +2 more
doaj  

Determination of Exchangeable and Easily Reducible Manganese in Soil by ICP-OES with Ammonium Chloride Extraction

Yankuang ceshi
Manganese is an essential and important mineral element for plants. The content of available manganese in soil is very beneficial to plant growth. Exchangeable manganese (ExMn) and easily reducible manganese (RMn) are the two most important forms of ...
Zhangxiong HAN, Ailing DUAN, Chunmiao LI, Gengyuan LIU, Shujun YANG, Linhua ZHANG, Zhenzhen LI   +6 more
doaj   +1 more source

Temperature and Concentration Induced Complex Behavior in Ternary Microemulsion

Applied Rheology, 2013
Viscosity measurements were performed in water/AOT (sodium bis(2-ethylhexyl) sulfoccinate)/isooctane microemulsions as a function of temperature between 25 and 55°C, molar ratio W0 = water/AOT ranging from 3 to 45 and three values of AOT/isooctane volume
Guettari Moez, Naceur Imen Ben, Kassab Ghazi, Ponton Alain, Tajouri Tahar   +4 more
doaj   +1 more source

LA RESONANCIA MAGNÉTICA NUCLEAR DE LA HEPATOCARCINOMA EN LA CIRROSIS HEPÁTICA Y LOS HALLAZGOS DE LA PATOLOGÍA DEL EXPLANTE HEPÁTICO

Revista de la Facultad de Medicina Humana, 2017
Objetivos: Determinar la sensibilidad y especificidad de la RMN trifásica con gadolinio en la detección de hepatocarcinoma en pacientes cirróticos que fueron a trasplante hepático y su correlación con los hallazgos del estudio patológico del explante ...
Consuelo Elsa Cornejo-Carrasco
doaj   +1 more source

INTERVALOS DE INTEGRACIÓN UNIFICADOS PARA LA CARACTERIZACIÓN ESTRUCTURAL DE PETRÓLEOS, CARBONES O SUS FRACCIONES POR RMN 1H Y RMN 13C

Revista Colombiana de Química, 2010
Con base en la revisión de publicaciones, hechas entre 1972 y 2006, se evidenció que hay imprecisiones en los límites de los intervalos de integración que los autores asignan a las señales en resonancia magnética nuclear (RMN) para hacer la ...
Avella Eliseo, Ricardo Fierro
doaj  

Radio mean labeling of a graph

AKCE International Journal of Graphs and Combinatorics, 2015
A Radio Mean labeling of a connected graph G is a one to one map f from the vertex set V(G) to the set of natural numbers N such that for two distinct vertices u and v of G, d(u,v)+⌈f(u)+f(v)2⌉≥1+diam(G).
R. Ponraj, S. Sathish Narayanan, R. Kala
doaj   +1 more source

Pseudo-Killing Spinors, Pseudo-supersymmetric p-branes, Bubbling and Less-bubbling AdS Spaces

, 2011
We consider Einstein gravity coupled to an n-form field strength in D dimensions. Such a theory cannot be supersymmetrized in general, we nevertheless propose a pseudo-Killing spinor equation and show that the AdS X Sphere vacua have the maximum number ...
AA Tseytlin, B Chen, D Berenstein, E Witten, G Papadopoulos, H Lin, H Lü, H Lü, H Lü, H Lü, H. Lü, J Grover, J Grover, J Perz, JB Gutowski, JM Figueroa-O’Farrill, JM Maldacena, JP Gauntlett, JP Gauntlett, JP Gauntlett, JT Liu, K Skenderis, R Güven, S Corley, S Cucu, SS Gubser, U Gran, Zhao-Long Wang   +27 more
core   +1 more source

Resonancia Magnética Nuclear en Costa Rica: una perspectiva histórica

Tecnología en Marcha
La Resonancia Magnética Nuclear (RMN) es una técnica ampliamente utilizada para la elucidación y caracterización estructural de moléculas orgánicas gracias a la interacción de la materia con un campo magnético.
José Andrés Borloz-Chinchilla, Isaac Fabián Céspedes-Camacho   +1 more
doaj   +1 more source