Search results for "Spect"
showing 10 items of 28650 documents
Aplicaciones de la Resonancia Magnética Nuclear en el estudio de la Infertilidad
2015
En los últimos años se ha producido una reducción en el número de nacimientos en muchos países, fundamentalmente europeos. Esta reducción puede ser debida a diversos factores que afecten a la fertilidad de la mujer tales como factores culturales, sociales y económicos que aumentan la edad de la mujer para concebir su primer hijo, causas inmunitarias, alteraciones del aparato reproductor femenino, causas hipotalámico-hipofisarias y factores relacionados con el estilo de vida entre otros. Estos problemas de fertilidad se pueden solucionar mediante diversos tratamientos de reproducción asistida, como la inseminación artificial o la fecundación in vitro. En estos últimos, el ovocito que se empl…
Descripción del perfil metabólico de adenomas hipofisarios mediante espectroscopia "ex-vivo", por resonancia magnética de alta resolución con rotació…
2017
INTRODUCCION La técnica experimental de espectroscopia ex¬ vivo, mediante resonancia magnética de alta resolución con rotación al ángulo mágico, utilizada en el estudio de muestras intactas de tejidos biológicos, ha demostrado ser una herramienta útil para la obtención de datos relevantes acerca de su perfil metabólico. Como ejemplo, su aplicación al estudio de tumores gliales del sistema nervioso central, se ha trasladado a la clínica diaria y tiene un papel relevante en el manejo y toma de decisiones terapéuticas. Los adenomas hipofisarios son tumores frecuentes, con características biológicas que hacen de su diagnóstico y manejo una tarea compleja que requiere un abordaje multidisciplina…
Study of the thermochromic phase transition in CuMo1−xWxO4 solid solutions at the W L3-edge by resonant X-ray emission spectroscopy
2021
This is the peer reviewed version of the following article: I. Pudza, A. Kalinko, A. Cintins, A. Kuzmin, Acta Mater. 205 (2021) 116581, which has been published in final form at https://www.sciencedirect.com/science/article/abs/pii/S1359645420310181 This article may be used for non-commercial purposes in accordance with Elsevier Terrms and Conditions for Self-Archiving.
A la recherche du principe d'égalité dans l'arbitrage commercial international
2008
International audience
Ideas of religious gerontology based on the Letter of his holiness Pope John Paul II to the elderly
2013
Application of algae in active biomonitoring of the selected holding reservoirs in swietokrzyskie province
2016
During the years 2014-2015, biomonitoring studies were carried out at three holding reservoirs located in Swietokrzyskie Province (central Poland): Kielce artificial lake, Chancza reservoir and Sielpia reservoir. In sea water algae Palmaria palmata (Linnaeus) Weber & Mohr, exposed in the analysed waters, the increases of concentrations were determined by the atomic absorption spectrometry method (AAS), of the following: Mn, Fe, Cu, Zn, Cd and Pb. Conductivity and pH were also determined in the reservoirs waters. The differences between the increases of heavy metal concentrations in the samples of algae found along the coastline were indicated; they result from different distances from the p…
Regulation of the HTRA2 Protease Activity by an Inhibitory Antibody-Derived Peptide Ligand and the Influence on HTRA2-Specific Protein Interaction Ne…
2021
The mitochondrial serine protease HTRA2 has many versatile biological functions ranging from being an important regulator of apoptosis to being an essential component for neuronal cell survival and mitochondrial homeostasis. Loss of HTRA2 protease function is known to cause neurodegeneration, whereas overactivation of its proteolytic function is associated with cell death and inflammation. In accordance with this, our group verified in a recent study that the synthetic peptide ASGYTFTNYGLSWVR, encoding the hypervariable sequence part of an antibody, showed a high affinity for the target protein HTRA2 and triggered neuroprotection in an in vitro organ culture model for glaucoma. To unravel t…
4812 - A0028 Gangliosides in the retina: a comparative inventory with brain and other ocular structures
2016
Purpose: Gangliosides (GG) make an extremely diverse family of glycosphingolipids particularly abundant in the brain and neural tissues. While it is known that alterations in GG metabolism are associated with visual defects, the precise biological roles of these compounds in the retina are still largely unknown. In this context, we performed an exhaustive inventory and thorough characterization of the human eye GG aiming to reveal specificities and common features of the retina compared to other ocular tissues and brain.Methods: Retina, RPE/Choroid, ciliary body, optic nerve and brain samples were collected from deceased human donors (N=7). GG were extracted and analysed by a comprehensive …
D.RE.A.M.: A software for uncertainties analysis in retrospective dosimetry
2018
Accidental exposures to ionising radiations are nowadays managed with assistance from biological and physical retrospective dosimetry which are able to provide individual estimates of dose absorbed by victims. The aim of this work is to describe the development of biodosimetry analysis software within the "EURADOS Working Group 10—Retrospective dosimetry" Task group 10.6. Methods The software has been developed in Python code language that is easy to learn, read, use and extensible (it is possible to add new modules). It can implement C/C++/Fortran, Java functions. It is embeddable in applications and is open source. It is extremely portable to Unix/Linux, Windows, Mac operating systems. Th…
FUNCIONAMIENTO EJECUTIVO TEMPRANO EN NIÑOS CON DIFICULTADES MATEMÁTICAS PERSISTENTES
2016
El objetivo del presente estudio consistió en examinar las diferencias en las funciones ejecutivas de inhibición y memoria de trabajo (MT) evaluadas en Educación Infantil entre sujetos con dificultades persistentes en el área de matemáticas en 2º de Educación Primaria y niños con un rendimiento adecuado. La muestra final del estudio estuvo conformada por 180 niños (inicialmente compuesta por 209 preescolares), de los cuales un 6.6% presentaron dificultades matemáticas persistentes (n = 12) y el 45.5% mostraron un rendimiento adecuado en ambas mediciones (n = 82). En Educación Infantil, se administraron seis tareas neuropsicológicas relacionadas con las funciones ejecutivas de inhibición, MT…