Search results for "14"
showing 10 items of 9841 documents
Familias reconstituidas: el cuestionamiento de los roles tradicionales parentales encarnados en las madres y las madrastras
2019
Logística, trabajo y almacenes: el lado oscuro de la digitalización
2021
Comparison of mechanical properties and composition of magnetron sputter and plasma enhanced atomic layer deposition aluminum nitride films
2018
A comparative study of mechanical properties and elemental and structural composition was made for aluminum nitride thin films deposited with reactive magnetron sputtering and plasma enhanced atomic layer deposition (PEALD). The sputtered films were deposited on Si (100), Mo (110), and Al (111) oriented substrates to study the effect of substrate texture on film properties. For the PEALD trimethylaluminum–ammonia films, the effects of process parameters, such as temperature, bias voltage, and plasma gas (ammonia versus N2/H2), on the AlN properties were studied. All the AlN films had a nominal thickness of 100 nm. Time-of-flight elastic recoil detection analysis showed the sputtered films t…
Enhancing Optomechanical Coupling via the Josephson Effect
2013
Cavity optomechanics is showing promise for studying quantum mechanics in large systems. However, smallness of the radiation-pressure coupling is a serious hindrance. Here we show how the charge tuning of the Josephson inductance in a single-Cooper-pair transistor (SCPT) can be exploited to arrange a strong radiation pressure -type coupling $g_0$ between mechanical and microwave resonators. In a certain limit of parameters, such a coupling can also be seen as a qubit-mediated coupling of two resonators. We show that this scheme allows reaching extremely high $g_0$. Contrary to the recent proposals for exploiting the non-linearity of a large radiation pressure coupling, the main non-linearit…
Precision measurement of the mass difference between light nuclei and anti-nuclei
2015
The measurement of the mass differences for systems bound by the strong force has reached a very high precision with protons and anti-protons. The extension of such measurement from (anti-)baryons to (anti-)nuclei allows one to probe any difference in the interactions between nucleons and anti-nucleons encoded in the (anti-)nuclei masses. This force is a remnant of the underlying strong interaction among quarks and gluons and can be described by effective theories, but cannot yet be directly derived from quantum chromodynamics. Here we report a measurement of the difference between the ratios of the mass and charge of deuterons and anti-deuterons, and $^{3}{\rm He}$ and $^3\overline{\rm He}…
Development of a New Clusterization Method for the GEM-TPC Detector
2022
The Facility for Antiproton and Ion Research FAIR, in Darmstadt Germany, will be one of the largest accelerator laboratories worldwide. The Superconducting FRagment Separator (Super-FRS)* is one of its main components. The Super-FRS can produce, separate and deliver high-energy radioactive beams with intensities up to 1e11 ions/s, covering projectiles from protons up to uranium and it can be used as an independent experimental device. The Gas Electron Multiplier-based Time Projection Chambers (GEM-TPC) in twin configuration is a newly developed beam tracking detector capable of providing spatial resolution of less than 1 mm with a tracking efficiency close to 100% at 1 MHz counting rate. Th…
Elegancia, comodidad, belleza
2009
Accarezzare i luoghi del progetto, guardare verso la storia per configurare gli spazi del presente, predisporre ambiti di vita in cui la dignità del lavoro possa trovare con naturalezza la misura del proprio essere. Questi paradigmi Ignazio Gardella articola, attraverso l'uso magistrale ed elegante degli strumenti del progetto, nel rispondere, da militante professionista del mestiere di architetto, alla richiesta di un imprenditore “illuminato” quale fu Adriano Olivetti. Eleganza, comodità, qualità dell’architettura, bellezza estetica, delicato rapporto con il paesaggio contiguo, diventano un diritto che il progettista riconosce e consegna agli utenti, perchè lo esercitino liberamente, lont…
Structure of superheavy nuclei along decay chains of element 115
2014
[Introduction] A recent high-resolution α , X -ray, and γ -ray coincidence-spectroscopy experiment offered the first glimpse of excitation schemes of isotopes along α -decay chains of Z = 115. To understand these observations and to make predictions about shell structure of superheavy nuclei below 288 115, we employ two complementary mean-field models: the self-consistent Skyrme energy density functional approach and the macroscopic-microscopic Nilsson model. We discuss the spectroscopic information carried by the new data. In particular, candidates for the experimentally observed E 1 transitions in 276 Mt are proposed. We find that the presence and nature of low-energy E 1 transitions in w…
Does better education mitigate risky health behavior? A mendelian randomization study.
2022
Education and risky health behaviors are strongly negatively correlated. Education may affect health behaviors by enabling healthier choices through higher disposable income, increasing information about the harmful effects of risky health behaviors, or altering time preferences. Alternatively, the observed negative correlation may stem from reverse causality or unobserved confounders. Based on the data from the Cardiovascular Risk in Young Finns Study linked to register-based information on educational attainment and family background, this paper identifies the causal effect of education on risky health behaviors. To examine causal effects, we used a genetic score as an instrument for year…
Expectativas de parto de las gestantes de La Ribera: una aproximación cualitativa
2017
Objetivo: El cambio de modelo asistencial en la atención al parto normal, el interés por parte de las autoridades sanitarias en que se exploren las expectativas de parto de las gestantes, y su especificidad cultural y social, hacen que el estudio de tales expectativas sea pertinente en este momento. El objetivo del presente estudio es conocer cuáles son las expectativas de parto de una muestra de gestantes españolas y estudiar las diferencias entre las expectativas de las gestantes primíparas y multíparas. Metodología: Estudio cualitativo basado en una pregunta de respuesta libre sobre expectativas de parto. Se recogieron datos a gestantes de tercer trimestre del área de salud de La Ribera …