Search results for "Model"
showing 10 items of 24058 documents
La qualità nei servizi sanitari: uno studio sugli approcci più usati in italia
2006
Simbolizzazioni e costruzione del setting formativo: verso un modello psicologico della qualità universitaria
2010
Introduzione Il tema della qualità universitaria ha acquisito negli ultimi anni una centralità crescente che si è spesso tradotta nell’adozione di modelli di valutazione dell’offerta formativa di impronta economico-gestionale. Minore risonanza hanno invece avuto proposte che, basate su un’idea della qualità dell’esperienza universitaria come dispositivo capace di favorire l’investimento progettuale degli studenti tramite l’avvio di processi di co-costruzione di significati e di elaborazione della loro domanda di formazione, possano costituire importanti occasioni di empowerment. Obiettivi e metodi Nell’ambito di un più articolato progetto di ricerca finalizzato alla validazione di un modell…
Analysis of the determinants of entrepreneurial intention: the case of Burkina Faso
2018
International audience; In this study, we propose to analyze students' entrepreneurial intention, drawing on Lazear's (2004) self-selection model. This model captures the role of "human capital" in employment assignment and emphasizes the importance of the variety of skills in the individual's entrepreneurial orientation. For this purpose, we have a database collected in 2017 from over 1000 students at Ouaga I and Ouaga II universities in Burkina Faso. The results of estimates obtained using the quantile regression method show a positive and significant effect of the diversity of skills on the intention score, mainly at the median level. Even if the effect is not strong, this result support…
Superradiant Quantum Phase Transition for an Exactly Solvable Two-Qubit Spin-Boson Model
2023
A spin-boson-like model with two interacting qubits is analysed. The model turns out to be exactly solvable since it is characterized by the exchange symmetry between the two spins. The explicit expressions of eigenstates and eigenenergies make it possible to analytically unveil the occurrence of first-order quantum phase transitions. The latter are physically relevant since they are characterized by abrupt changes in the two-spin subsystem concurrence, in the net spin magnetization and in the mean photon number.
Enhancing Metastability by Dissipation and Driving in an Asymmetric Bistable Quantum System.
2018
The stabilizing effect of quantum fluctuations on the escape process and the relaxation dynamics from a quantum metastable state are investigated. Specifically, the quantum dynamics of a multilevel bistable system coupled to a bosonic Ohmic thermal bath in strong dissipation regime is analyzed. The study is performed by a non-perturbative method based on the real-time path integral approach of the Feynman-Vernon influence functional. We consider a strongly asymmetric double well potential with and without a monochromatic external driving, and with an out-of-equilibrium initial condition. In the absence of driving we observe a nonmonotonic behavior of the escape time from the metastable regi…
Novel qutrit circuit design for multiplexer, De-multiplexer, and decoder
2022
AbstractDesigning conventional circuits present many challenges, including minimizing internal power dissipation. An approach to overcoming this problem is utilizing quantum technology, which has attracted significant attention as an alternative to Nanoscale CMOS technology. The reduction of energy dissipation makes quantum circuits an up-and-coming emerging technology. Ternary logic can potentially diminish the quantum circuit width, which is currently a limitation in quantum technologies. Using qutrit instead of qubit could play an essential role in the future of quantum computing. First, we propose two approaches for quantum ternary decoder circuit in this context. Then, we propose a qua…
Like Parents, like Teenagers: A Romanian Youth Smoking Overview
2015
AbstractThis paper estimates how family model influences youth's smoking behaviors and describes smoking behavior in Romania nowadays. A questionnaire-based survey was used and data was collected from a national sample (1,364 people: 536 male and 828 female; average age 22,71 years and SD=3,128). The paper analyses only the items relevant for smoking behavior.Using a quasi-experimental design, we found a significant difference determinated by father's model (ρ(1364)= 0,158, p < 0,05), mother's model (ρ(1362)=0,155, p < 0,05), and brothers/sisters’ model (ρ(1362)=0,219, p < 0,05), regarding smoking behavior.Keywords: smoking behaviour, Romanian teenagers, parental model, Health Psychology
Comparison of Microscopic Interacting Boson Model and Quasiparticle Random Phase Approximation 0νββ Decay Nuclear Matrix Elements
2021
The fundamental nature of the neutrino is presently a subject of great interest. A way to access the absolute mass scale and the fundamental nature of the neutrino is to utilize the atomic nuclei through their rare decays, the neutrinoless double beta (0νββ) decay in particular. The experimentally measurable observable is the half-life of the decay, which can be factorized to consist of phase space factor, axial vector coupling constant, nuclear matrix element, and function containing physics beyond the standard model. Thus reliable description of nuclear matrix element is of crucial importance in order to extract information governed by the function containing physics beyond the standard m…
Desarrollo de metodologías sostenibles de análisis
2017
Uno de los retos actuales en la Química Analítica reside en el desarrollo de metodologías analíticas sostenibles que respeten los principios planteados por la Química Verde, de manera su impacto sobre el entorno sea mínimo. Para conseguir este objetivo se han establecido diferentes estrategias o líneas de investigación. En primer lugar, las técnicas de microextracción están aportando numerosas ventajas, aunque todavía presentan algunas limitaciones. Por consiguiente, resulta necesario desarrollar técnicas que automaticen la etapa relativa al pretratamiento de la muestra con el fin de disminuir tanto el tiempo de análisis como la manipulación de la muestra. En segundo lugar, y atendiendo a l…
Double role of music criticism : a model of the inner structure of the funding of music
2008
Tarkoituksena on tarkastella, kuinka musiikkikritiikki vaikuttaa musiikin rahoitukseen. Aineistoni muodostuu eri osa-alueiden teksteistä. Tutkimukseni näkökulma perustuu Bourdieu´n, Beckerin ja Maussin määrittelemään kenttään ja sen dynamiikkaan. Kentän asiantuntijaosan muodostavat koulutus, kulttuuripolitiikka, ja muusikko (imagon saajan osana). Kaiken keskiössä on kriitikko, taiteellista tasoa evaluoimassa. Näin muodostuvassa sisäpiirissä voi liikkua päätöksiin vaikuttavaa tietoa. Tämä muodostaa rahoituksen yhden haaran. Toinen haara syntyy lipputuloista. Innovaattoreitta on tutkimusten mukaan 10-15% yleisöstä (, ja sillä saattaa olla sija sisäpiireissäkin), suurin osa yleisöä seuraa inno…