Search results for "FOS"
showing 10 items of 15075 documents
Commensal Staphylococcus isolates from the nasal cavity of community older adults in Valencia (Spain) and their resistance to methicillin and other a…
2019
espanolLas cepas de Staphylococcus aureus resistentes a meticilina (SARM) estan ampliamente diseminadas, causando infecciones hospitalarias y comunitarias, y los portadores sanos de SARM constituyen un reservorio del patogeno. Otras especies de estafilococos coagulasa negativos (CoNS) colonizan animales y humanos, e incluyen cepas resistentes a meticilina (CoNSRM). En este trabajo hemos determinado la prevalencia de S. aureus y CoNS en la cavidad nasal de adultos mayores sanos (n= 27, edad media: 63.7 anos) y su resistencia a meticilina y otros antibioticos. Se obtuvieron 35 aislados de Staphylococcus. Todos los individuos (100%) portaban al menos una cepa de Staphylococcus; el 15% eran por…
Mecanismos de percepción y de respuesta a bajas temperaturas en Saccharomyces cerevisiae
2014
A lo largo de los años, la levadura S. cerevisiae se ha convertido en organismo modelo tanto en la industria, como en el campo de la investigación básica, debido a sus características metabólicas y su fácil manipulación. Es conocido que, cuando la célula se enfrenta a una situación de estrés, debe modificar su fisiología para mantener la homeostasis celular. En el ámbito industrial, el aumento en la demanda de levaduras con características especiales, ha hecho patente la necesidad de nuevas cepas que se adecuen a los requerimientos y necesidades del consumidor. En esta línea, las estrategias de mejora y selección de cepas industriales se ven limitadas por el escaso conocimiento que disponem…
De entre los libros prohibidos: Gamaliel
2011
Este artículo se centra en la difusión e importancia de los libros devocionales como exponentes de la cosmovisión religiosa de la cotidianeidad a través de uno de ellos, Gamaliel. Obra anónima sobre la pasión y muerte de Cristo que tuvo su origen en el evangelio apócrifo de Nicodemo y ampliamente difundida durante los siglos XIV-XV en la zona valenciano-catalano-balear. También se estudia cómo, a pesar de su popularidad, fue incluida en los índices de libros prohibidos por la Inquisición Española y su supervivencia hasta nuestros días. This article explores the relevance of devotional literature as representing Medieval popular piety and a non-learned religious vision of the world at the ti…
The use of calcined paper mill sludge as a chemical precipitant in the simultaneous removal of ammonium and phosphate : paper mill waste recycling an…
2020
Currently, recycling and re-use of materials is extremely important due to the diminishing of natural resources. The objective of the European Union’s circular economy strategy is to increase recycling and the use of industrial waste materials and side streams as secondary raw materials. In this study, a chemical precipitation method to simultaneously remove ammonium nitrogen and phosphate from the liquid phase of anaerobic digestate using calcined paper mill sludge was studied. Papermill sludge is a waste material that forms in the paper-making process. In addition, commercial calcium oxide (CaO) was used as a reference precipitant. The suitability of the formed precipitate’s composition f…
Complex dynamics, hidden attractors and continuous approximation of a fractional-order hyperchaotic PWC system
2018
In this paper, a continuous approximation to studying a class of PWC systems of fractionalorder is presented. Some known results of set-valued analysis and differential inclusions are utilized. The example of a hyperchaotic PWC system of fractional order is analyzed. It is found that without equilibria, the system has hidden attractors.
Voisinages tubulaires épointés et homotopie stable à l'infini
2022
We initiate a study of punctured tubular neighborhoods and homotopy theory at infinity in motivic settings. We use the six functors formalism to give an intrinsic definition of the stable motivic homotopy type at infinity of an algebraic variety. Our main computational tools include cdh-descent for normal crossing divisors, Euler classes, Gysin maps, and homotopy purity. Under-adic realization, the motive at infinity recovers a formula for vanishing cycles due to Rapoport-Zink; similar results hold for Steenbrink's limiting Hodge structures and Wildeshaus' boundary motives. Under the topological Betti realization, the stable motivic homotopy type at infinity of an algebraic variety recovers…
Seasonal Modulation of the $^7$Be Solar Neutrino Rate in Borexino
2017
We detected the seasonal modulation of the $^7$Be neutrino interaction rate with the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy. The period, amplitude, and phase of the observed time evolution of the signal are consistent with its solar origin, and the absence of an annual modulation is rejected at 99.99\% C.L. The data are analyzed using three methods: the sinusoidal fit, the Lomb-Scargle and the Empirical Mode Decomposition techniques, which all yield results in excellent agreement.
Recent changes in chironomid communities and hypolimnetic oxygen conditions relate to organic carbon in subarctic ecotonal lakes
2018
A key question in aquatic elemental cycling is related to the influence of bottom water oxygen conditions in regulating the burial and release of carbon under climate warming. In this study, we used head capsules of Chironomidae larvae to assess community and diversity change between the past (estimated as Pre-Industrial Period) and present and to reconstruct changes in hypolimnetic oxygen conditions from 30 subarctic ecotonal lakes (northeastern Lapland) using the top-bottom paleolimnological approach applying surface sediment (topmost 0-2 cm) and reference (4-5 cm) samples. Subsequently, we tested the findings against dissolved organic carbon (DOC) concentration of the sites. We found tha…
Local regularity estimates for general discrete dynamic programming equations
2022
We obtain an analytic proof for asymptotic H\"older estimate and Harnack's inequality for solutions to a discrete dynamic programming equation. The results also generalize to functions satisfying Pucci-type inequalities for discrete extremal operators. Thus the results cover a quite general class of equations.
Ledrappier-Young formula and exact dimensionality of self-affine measures
2017
In this paper, we solve the long standing open problem on exact dimensionality of self-affine measures on the plane. We show that every self-affine measure on the plane is exact dimensional regardless of the choice of the defining iterated function system. In higher dimensions, under certain assumptions, we prove that self-affine and quasi self-affine measures are exact dimensional. In both cases, the measures satisfy the Ledrappier-Young formula. peerReviewed