Search results for "ESOL"
showing 10 items of 2444 documents
Towards high-resolution laser ionization spectroscopy of the heaviest elements in supersonic gas jet expansion
2017
Resonant laser ionization and spectroscopy are widely used techniques at radioactive ion beam facilities to produce pure beams of exotic nuclei and measure the shape, size, spin and electromagnetic multipole moments of these nuclei. However, in such measurements it is difficult to combine a high efficiency with a high spectral resolution. Here we demonstrate the on-line application of atomic laser ionization spectroscopy in a supersonic gas jet, a technique suited for high-precision studies of the ground- and isomeric-state properties of nuclei located at the extremes of stability. The technique is characterized in a measurement on actinium isotopes around the N=126 neutron shell closure. A…
Considerations on the modelling and optimisation of resolution of ionisable compounds in extended pH-range columns
2005
Abstract The problems associated to the modelling and optimisation of the chromatographic resolution of mixtures involving ionisable solutes at varying pH and acetonitrile content are discussed. Several retention models that separate the contributions of solute, column and stationary phase, were used. The retention was predicted with low errors in large pH domains (2–12), which was an essential requirement to face the optimisation of resolution. The selected mixture was particularly problematic under the viewpoint of resolution, owing to the excessively diverse acid–base behaviour of solutes. This variety led to sudden drops in retention at different pH for each solute, yielding numerous pe…
A Domino Ring‐Closure Followed by Retro‐Diels–Alder Reaction for the Preparation of Pyrimido[2,1‐ a ]isoindole Enantiomers
2016
A simple method was developed to prepare pyrimido[2,1-a]isoindole derivatives by using di-endo- and di-exo-ethyl 3-aminobicyclo[2.2.1]hept-5-ene-2-carboxylate enantiomers as chiral sources. The method is based on a domino ring-closure reaction of norbornene 2-aminohydroxamic acid followed by microwave-induced retro-Diels–Alder reaction. In the case of enantiomeric starting substances, the chirality is transferred from norbornene derivatives to pyrimido[2,1-a]isoindoles. The configurations of the synthesized compounds were determined by 1D and 2D NMR spectroscopy [based on 2D NOE cross-peaks and 3JH,H coupling constants] and X-ray crystallography.
Histochemistry of the Mitochondrial System
1964
It has been customary to introduce any discussion on the mitochondrion by summing up its functions as the energy center of the cell. Because of the extensive reviews and symposia in this field in recent years such an introduction would be repetitious and will therefore be omitted. — The relative ease by which mitochondria can be isolated from various cells and the considerable purity of such fractions permitted an analysis of the overall functions of mitochondria and the extrapolation of these results, on a statistical basis, to a single mitochondrion. Further fragmentation of isolated mitochondria into sub-units that carry segments of the functional activity of the whole organelle signific…
Las ADR en la justicia del siglo XXI, en especial la mediación (The Alternative Dispute Resolution ‘ADR’ in the Justice of the 21st Century, Especial…
2011
Spanish Abstract: El presente ensayo busca exponer en torno a experiencias poco analizadas por los sistemas juridicos europeos de corte continental, pero muy bien conocidas por los sistemas anglosajones. El objetivo trazado es fomentar el debate en torno a estas alternativas para la resolucion de los conflictos en la sociedad, con especial atencion a la mediacion. English Abstract: This is essay seeks to expose not very much analyzed experiences by the legal systems of the continental Europeans, but very well known by the Anglo-Saxon systems. The stated goal is to encourage debate on these alternatives to resolve conflicts in society, with special attention to mediation.
Quick Recovery of Renal Alterations and Inflammatory Activation after a Marathon
2018
<b><i>Purpose:</i></b> We evaluated the incidence of acute kidney injury in a cohort of marathon participants. <b><i>Methods:</i></b> We conducted a prospective observational study focused on evaluating the incidence of kidney damage after a marathon, and its evolution in the first 48 h after the marathon in 88 runners who completed the Valencia Marathon. <b><i>Results:</i></b> From the 88 participants, 42 (48.28%) presented with acute kidney injury, mainly grade 1 (95.20%). Microscopic haematuria was observed in 29 runners (33%). Levels of interleukin 6, leukocytes, and neutrophils were markedly increased at the marath…
Automated untargeted stable isotope assisted lipidomics of liver cells on high glucose shows alteration of sphingolipid kinetics
2020
Abstract Untargeted lipidomics is a powerful tool to discover new biomarkers and to understand the physiology and pathology of lipids. The use of stable isotopes as tracers to investigate the kinetics of lipids is another tool able to supply dynamic information on lipid synthesis and catabolism. Coupling the two methodology is then very appealing in the study of lipid metabolism. The main issue to face is to perform thousands of calculations in order to obtain kinetic parameters starting from the MS raw data. An automated computerized routine able to do accomplish such task is presented in this paper. We analyzed the lipid kinetics of palmitic acid (PA) in hepatoma liver cells cultured in v…
A geostatistical approach to map near-surface soil moisture through hyperspatial resolution thermal inertia.
2021
Thermal inertia has been applied to map soil water content exploiting remote sensing data in the short and long wave regions of the electromagnetic spectrum. Over the last years, optical and thermal cameras were sufficiently miniaturized to be loaded onboard of unmanned aerial systems (UASs), which provide unprecedented potentials to derive hyperspatial resolution thermal inertia for soil water content mapping. In this study, we apply a simplification of thermal inertia, the apparent thermal inertia (ATI), over pixels where underlying thermal inertia hypotheses are fulfilled (unshaded bare soil). Then, a kriging algorithm is used to spatialize the ATI to get a soil water content map. The pr…
Formación para el mundo del trabajo desde la resolución de problemas
2015
Nuestra aportación se concreta en una experiencia de aula realizada en Formación Profesional que se inserta en un planteamiento de intervención educativa que mejore el proceso de enseñanza-aprendizaje desde la resolución de problemas y la implementación de una metodología docente participativa y colaborativa. Se ha llevado a cabo en el contexto de las Escuelas de Artesanos de Valencia (curso 2014-2015); en concreto, en el Ciclo Formativo de Grado Superior “Gestión Comercial y Marketing”. En nuestra práctica docente optamos por potenciar una formación integral que no sólo capacite al alumnado profesionalmente sino que contribuya al mismo tiempo en dotarle de unas competencias personales de s…
Resolution of singularities for multi-loop integrals
2007
We report on a program for the numerical evaluation of divergent multi-loop integrals. The program is based on iterated sector decomposition. We improve the original algorithm of Binoth and Heinrich such that the program is guaranteed to terminate. The program can be used to compute numerically the Laurent expansion of divergent multi-loop integrals regulated by dimensional regularisation. The symbolic and the numerical steps of the algorithm are combined into one program.