Search results for "Axia"
showing 10 items of 638 documents
On the mechanical stability and out-of-plane dynamics of a travelling panel submerged in axially flowing ideal fluid : a study into paper production …
2011
Improved calculations of beta decay backgrounds to new physics in liquid xenon detectors
2020
We present high-precision theoretical predictions for the electron energy spectra for the ground-state to ground-state $\beta$ decays of $^{214}$Pb, $^{212}$Pb, and $^{85}$Kr most relevant to the background of liquid xenon dark matter detectors. The effects of nuclear structure on the spectral shapes are taken into account using large-scale shell model calculations. Final spectra also include atomic screening and exchange effects. The impact of nuclear structure effects on the $^{214}$Pb and $^{212}$Pb spectra below $\approx100$ keV, pertinent for several searches for new physics, are found to be comparatively larger than those from the atomic effects alone. We find that the full calculatio…
Implementation of a wireless instrumented sphere for fruit processing
2020
The aim of this study was to implement a wireless instrumented sphere to study the critical points in a citrus packing line by real-time measuring the impacts experienced by fruits. The noncommercial device was based on a MEMS (microelectro-mechanical system) sensor node with a sensing range from ±1 g to ±400 g (g = 9.8 m s-2), a ferroelectric RAM (FRAM) memory, a radio frequency (RF) transmitter, a microcontroller, and a 75 mAh lithium battery. The sensor node was placed inside an appropriate case with a total weight of 100 g to represent a 'Tardivo di Ciaculli' mandarin. An FR receiver allowed real-time transmission of the measured data. Total acceleration values, representing the stresse…
Axial Flux Permanent Magnet Synchronous Generators for Pico Hydropower Application: A Parametrical Study
2022
A pico hydropower plant is an energy harvesting system that allows energy production using the power of the water flowing in small watercourses, and in water distribution network. Axial Flow Flux Permanent Magnet Synchronous Generator (AFPMSG) are particularly suitable for this application, being efficient machines that achieve high power with small dimensions. This paper presents a parametrical study of several configurations and topologies of three-phase and single-phase AFPMSG, for pico hydropower application, to assess the most suitable dimensional characteristics for the most energy production using a safe voltage of 25 V. The AFPMSGs here considered has a simple single stator and roto…
Papel de las Membranas Asociadas a Retículo Endoplasmático y Mitocondria (MAMs) en la fisiopatología celular de la Ataxia de Friedreich y su relevanc…
2022
Calcium (Ca2+) is involved in different cellular functions and signaling pathways, mediating between extracellular and intracellular signals. MAMs (Endoplasmic reticulum-mitochondria associated membranes) are specific close appositions formed by the physical interaction of the ER and the mitochondria, thus regulating the main intracellular Ca2+ flux by means of the communication between the two compartments. This is fundamental to maintain cell function and so it has been proposed as a common mechanism in neurodegeneration. Friedreich's Ataxia (FRDA) is an autosomal recessive neurodegenerative disorder in which patients show reduced levels of frataxin (FXN), a protein fundamentally associat…
Impact of
2018
Drosophila melanogaster has been for over a century the model of choice of several neurobiologists to decipher the formation and development of the nervous system as well as to mirror the pathophysiological conditions of many human neurodegenerative diseases. The rare disease Friedreich’s ataxia (FRDA) is not an exception. Since the isolation of the responsible gene more than two decades ago, the analysis of the fly orthologue has proven to be an excellent avenue to understand the development and progression of the disease, to unravel pivotal mechanisms underpinning the pathology and to identify genes and molecules that might well be either disease biomarkers or promising targets for therap…
Estudio de la fusión celular en respuesta a diversas condiciones patológicas
2015
La hipótesis de la fusión celular considera que una célula derivada de la médula ósea se fusiona con un precursor local o con una célula madura, transfiriendo su material genético y mezclando sus citoplasmas. La fusión celular supone un cambio conceptual en los campos de la terapia celular y de la genética, ya que las células de la médula, al fusionarse, aportarían material genético nuevo que podría permitir el rescate de una célula en proceso de degeneración, o corregir un defecto genético de la misma. Por tanto, la fusión celular posee un gran potencial terapéutico. Sin embargo, el papel de la fusión celular en el tratamiento de sintomatologías del sistema nervioso esta aun en fase de est…
Absolute kinematics of radio source components in the complete S5 polar cap sample
2008
We report on the first wide-field, high-precision astrometric analysis of the 13 extragalactic radio sources of the complete S5 polar cap sample at 15.4 GHz. We describe new algorithms developed to enable the use of differenced phase delays in wide-field astrometric observations and discuss the impact of using differenced phase delays on the precision of the wide-field astrometric analysis. From this global fit, we obtained estimates of the relative source positions with precisions ranging from 14 to 200 μas at 15.4 GHz, depending on the angular separation of the sources (from ∼1.6 to ∼20.8 degrees). These precisions are ∼10 times higher than the achievable precisions using the phase-refere…
Análisis clínico y valoración de las alteraciones fonéticas, musculares y deglución atípica en pacientes infantiles
2017
El avance de la odontología y su vinculación con otras disciplinas, como es el caso de la logopedia, ha originado un área de investigación en la infancia que tiene como resultado la prevención de patologías y el adecuado desarrollo del niño/a. Las ciencias odontológicas se encargan del estudio, diagnóstico, tratamiento y prevención de las enfermedades del aparato estomatognático. La logopedia es una ciencia que se dedica al estudio de la comunicación. Como disciplina se ocupa de la prevención, evaluación e intervención de los trastornos de la voz, el habla, el lenguaje, la audición y la deglución. REVISIÓN DE LA LITERATURA Desde mediados del siglo XX numerosos autores estudiaron la importan…
23 GHz VLBI observations of SN 2008ax (Research Note)
2009
We report on phase-referenced 23 GHz Very-Long-Baseline-Interferometry (VLBI) observations of the type IIb supernova SN 2008ax, made with the Very Long Baseline Array (VLBA) on 2 April 2008 (33 days after explosion). These observations resulted in a marginal detection of the supernova. The total flux density recovered from our VLBI image is 0.8 ± 0.3 mJy (one standard deviation). As it appears, the structure may be interpreted as either a core-jet or a double source. However, the supernova structure could be somewhat confused with a possible close by noise peak. In such a case, the recovered flux density would decrease to 0.48 ± 0.12 mJy, compatible with the flux densities measured with the…