Search results for "LESS"
showing 10 items of 2452 documents
Effects of coaching on generalist primary music teachers´ classroom practice and their `musical self-concept´
2016
The majority of music lessons in primary schools are covered by generalist primary music teachers, usually with little or no training in teaching it. This practice-based research project is part a PhD program to professionalize generalist music teachers in primary schools to teach music lessons. The aim of this study was to describe changes in the generalist primary music teachers´ didactic classroom practices in teaching music. Moreover, this study aimed to analyze the generalist primary music teachers´ development of their `musical self-concept` (Spychiger, 2010). This longitudinal intervention study is qualitative in character. Participants were 8 generalist primary music teachers and 4 …
Cuidado y responsabilidad: de Hans Jonas a Carol Gilligan
2019
El objetivo de este trabajo es situar la ética del cuidado en contexto de las éticas de la responsabilidad. Para ello analizamos la orientación hacia el cuidado en las éticas de la responsabilidad mostrando la transición de una responsabilidad limitada por el cálculo consecuencialista en la actividad política, a una responsabilidad integral exigida por la preservación de la naturaleza ante los desafíos de la ciencia y la técnica. Interpretamos la aportación de Carol Gilligan en términos de «provocación » a la ética contemporánea para que el cuidado no sea únicamente una categoría sentimental o afectiva sino una categoría con la que reconstruir reflexivamente la justicia social. Esta interpr…
Latviešu valodas nebalsīgo troksneņu akustisks un auditīvs raksturojums
2013
Elektroniskā versija nesatur pielikumus
Exotic properties of neutrinos using effective Lagrangians and specific models
2013
289 páginas. Tesis Doctoral del Departamento de Física Teórica, de la Universidad de Valencia, y del Instituto de Física Corpuscular (IFIC).
Event reconstruction in NEXT using a ML-EM algorithm
2017
La desintegración doble beta sin neutrinos es un proceso hipotético en el que dos neutrones de un núcleo se transforman en dos protones emitiendo únicamente dos electrones, sin neutrinos. La detección de un proceso así demostraría que los neutrinos son partículas de Majorana y que el número leptónico total no se conserva (las oscilaciones de neutrinos ya han demostrado que el número leptónico por familia no se conserva). La determinación de la naturaleza del neutrino podría responder a varias preguntas de diversa índole dentro de la física de partículas. Primero, podría dar explicación a la escala de masas del neutrino a través de un mecanismo de balancín (see-saw). Por…
The NEXT experiment for neutrinoless double beta decay searches
2015
211 páginas. Tesis Doctoral del Departamento de Física Atómica, Molecular y Nuclear, de la Universidad de Valencia y del Instituto de Física Corpuscular (IFIC).
Measurement of the 2νββ decay half-life of 150Nd and a search for 0νββ decay processes with the full exposure from the NEMO-3 detector
2016
We present results from a search for neutrinoless double-β (0νββ) decay using 36.6 g of the isotope 150Nd with data corresponding to a live time of 5.25 y recorded with the NEMO-3 detector. We construct a complete background model for this isotope, including a measurement of the two-neutrino double-β decay half-life of T2ν 1=2 ¼ ½9.34 0.22ðstatÞ þ0.62 −0.60 ðsystÞ × 1018 y for the ground state transition, which represents the most precise result to date for this isotope. We perform a multivariate analysis to search for 0νββ decays in order to improve the sensitivity and, in the case of observation, disentangle the possible underlying decay mechanisms. As no evidence for 0νββ decay is observ…
High-precision measurement of the mass difference between 102Pd and 102Ru
2019
The Q-value for the neutrinoless double electron capture on 102Pd, Qϵϵ(102Pd), is determined as the atomic mass difference between 102Pd and 102Ru. A precise measurement of the Qϵϵ(102Pd) at the SHIPTRAP Penning trap showed a more than 10σ deviation to the adopted Atomic Mass Evaluation (AME) value. The reliability of the SHIPTRAP measurement was challenged because the AME value was based on numerous experiments including β and electron capture decays and very precise (n, γ) data, all agreeing with each other. To solve the discrepancy, the Qϵϵ(102Pd) has now been determined with the JYFLTRAP Penning trap at the IGISOL facility in the Accelerator Laboratory of the University of Jyväskylä. Th…
Activation of Stainless Steel 316L Anode for Anion Exchange Membrane Water Electrolysis
2023
The increased emphasis on renewable energy has resulted in a surge of R&D efforts into hydrogen and battery research. The intensive electrochemical environment surrounding the anodic oxygen evolution reaction (OER) has plagued both the activity and stability of the catalytic layer, substrate and porous transport layer, ultimately affecting both these industries. Herein, we report the benefits of potential cycling (PC) a 316L stainless steel felt porous transport layer (PTL) for use in anion exchange membrane water electrolysis. The PC increased surface roughness and created a CrFe5Ni2-OxHy layer through the oxidation of iron as shown by SEM, EDS, XPS, XRD and Raman spectroscopy. Post-PC tes…
Noiseless Quantum Measurement and Squeezing of Microwave Fields Utilizing Mechanical Vibrations
2017
A process which strongly amplifies both quadrature amplitudes of an oscillatory signal necessarily adds noise. Alternatively, if the information in one quadrature is lost in phase-sensitive amplification, it is possible to completely reconstruct the other quadrature. Here we demonstrate such a nearly perfect phase-sensitive measurement using a cavity optomechanical scheme, characterized by an extremely small noise less than 0.2 quanta. We also observe microwave radiation strongly squeezed by 8 dB below vacuum. A source of bright squeezed microwaves opens up applications in manipulations of quantum systems, and noiseless amplification can be used even at modest cryogenic temperatures.