Search results for "Acs"
showing 10 items of 259 documents
Lymphatic endothelial progenitors bud from the cardinal vein and intersomitic vessels in mammalian embryos.
2012
Abstract The lymphatic vasculature preserves tissue fluid balance by absorbing fluid and macromolecules and transporting them to the blood vessels for circulation. The stepwise process leading to the formation of the mammalian lymphatic vasculature starts by the expression of the gene Prox1 in a subpopulation of blood endothelial cells (BECs) on the cardinal vein (CV) at approximately E9.5. These Prox1-expressing lymphatic endothelial cells (LECs) will exit the CV to form lymph sacs, primitive structures from which the entire lymphatic network is derived. Until now, no conclusive information was available regarding the cellular processes by which these LEC progenitors exit the CV without co…
Digital Palaeography of Hieratic
2020
After a short history of research into hieratic palaeography, the first experiences with digital methods to conduct the study of handwritten documents, in Egyptology as well as in other fields, are presented. The needs and goals of a future digital palaeography are then explained in detail. Such a palaeography is expected to become a modern research tool for ancient Egyptian handwritings that allows the depiction, description, classification, and encoding of cursive signs and that includes information about the entire manuscripts and their materiality. In constructing such a tool, some questions are essential, for instance: How should the signs be represented—as image sections from a scan o…
A multilayer anisotropic plate model with warping functions for the study of vibrations reformulated from Woodcock's work
2013
Abstract In this paper, a suitable model for static and dynamic analysis of inhomogeneous anisotropic multilayered plates is described. This model takes into account the variations of the transverse shear strains through the thickness of the plate by means of warping functions. Warping functions are determined by enforcing kinematic and static assumptions at the interfaces. This model leads to: a 10×10 stiffness matrix coupling to each other the membrane strains, the bending and torsion curvatures, and the x and y-derivatives of the transverse shear strains; and a classical 2×2 transverse shear stiffness matrix. This model has been proven to be very efficient, especially when high ratios be…
Libro de la invencion liberal y arte del juego del Axedrez : muy vtil y prouechosa, assi para los que de nueuo quisieren deprender à jugarlo, como p…
1561
Sig. *4, [signe]4, A-S8, T6 Capitals grav. Text amb postil·les marginals. - Reclams. - Errates de fol.
Libro de la invencion liberal y arte del juego del Axedrez : muy vtil y prouechosa, assi para los que de nueuo quisieren deprender à jugarlo, como pa…
1561
Sig. *4, [signe]4, A-S8, T6 Capitals grav Text amb postil·les marginals. - Reclams. - Errates de fol
Análisis prospectivo de selección inmunomagnética en espermatozoides para la mejora de los resultados de las técnicas de reproducción asistida
2017
Introducción La infertilidad afecta a una de cada 5 parejas con la intención de concebir solucionado en parte por el desarrollo de las distintas técnicas de reproducción asistida (TRAs), aunque a pesar de los logros alcanzados, todavía existe un elevado porcentaje de casos en los que estas técnicas no son 100% efectivas o son necesarios repetidos intentos para lograr una gestación. La responsabilidad del éxito reproductivo está compartida entre el gameto masculino y el femenino. Los gametos femeninos son el factor limitante en cualquier técnica de reproducción, ya que se generan muy pocos, cuesta mucho de obtenerlos y todos ellos se utilizan, por lo que en principio no va a ser posible sele…
Measurement of the cosmic ray energy spectrum using hybrid events of the Pierre Auger Observatory
2012
The energy spectrum of ultra-high energy cosmic rays above 10$^{18}$ eV is measured using the hybrid events collected by the Pierre Auger Observatory between November 2005 and September 2010. The large exposure of the Observatory allows the measurement of the main features of the energy spectrum with high statistics. Full Monte Carlo simulations of the extensive air showers (based on the CORSIKA code) and of the hybrid detector response are adopted here as an independent cross check of the standard analysis (Phys. Lett. B 685, 239 (2010)). The dependence on mass composition and other systematic uncertainties are discussed in detail and, in the full Monte Carlo approach, a region of confiden…
La seduzione squadrista in un fascismo periferico. Memoria e ceto politico a Palermo
2019
During Mussolini's dictatorship, the concept of squadrismo was an essential aspect of the Fascist identity. Squadrismo was widespread in Central and Northern Italy in particular, and certain cities in the South subsequently resorted to fabricating their own squadrist myths and traditions. This essay focuses on the case of Palermo. The relationship between the fascist squads' origins and certain local leaders' life histories is underlined. More specifically, an attempt is made to show how Palermo had more "political" prefects than many other Italian provinces. As Fascism emerged later in the South than elsewhere in Italy, the local party hierarchies had not taken part in the original Fascist…
Simulation of mid-IR amplification in Er3+-doped chalcogenide microstructured optical fiber
2009
International audience; This paper deals with the design of an erbium doped microstructured optical fiber (MOF) amplifier operating in the mid-infrared (mid-IR) wavelength range, more precisely around 4.5 µm wavelength. A homemade numerical code which solves the rate equations and the power propagation equations has been ad hoc developed to theoretically investigate the feasibility of mid-IR MOF amplifier. On the basis of the measured energy level transition parameters of a Er3+-doped Ga5Ge20Sb10S65 chalcogenide glass, the amplifier feasibility is demonstrated exhibiting high gain and low noise figure.
Electronic Design for a Bleeding Detector to be Used in Intraoperative Radiotherapy Applications
2021
An electronic design for a bleeding detector used with mobile linac during intraoperative radiotherapy (IORT) is presented. It consists on a readout circuit based on a De Sauty Bridge and a wireless power supply using a supercapacitor. The goal is the measurement of the height of fluid present in the applicator in order to avoid a misadministration dose during the irradiation process. A minimum measurement height of 5 mm is required by clinic to be confident with the selected radiation dose. The measurement circuit uses a capacitive sensor which detects variations lower than 0.1 pF. The readout circuit converts dynamic capacitance variation from the bleeding detector into an analog voltage …