Results 131 to 140 of about 50,759 (202)

Interventions to promote child development in institutionalized children: a scoping review. [PDF]

open access: yesRev Esc Enferm USP
Martins V   +7 more
europepmc   +1 more source

Estudio de transiciones de fase cuánticas en el modelo de Rabi

open access: yes, 2019
In this work, we carry out a study of the quantum phase transitions present in the Rabi model, a radiation-matter interaction model between a two-level atom and a bosonic field. We will present and analyze its Hamiltonian in order to, from it, characterize the quantum phase transitions that affect both the ground state and the excited states of the ...
openaire   +2 more sources

Estudio por correlaciones angulares perturbadas de transiciones de fase en Zr-Hf

open access: yes, 1993
Time Differential Perturbed Angular Correlations (TDPAC) were used to detect the phonon softening that takes place in the α → β and β →α phase transitions in Zr-1.3 at. % Hƒ and Zr-4,5 at. % Hƒ alloys and to investigate, at atomic level, the changes ocurrying on those transitions related to observed diffusion ...
Damonte, Laura Cristina   +3 more
openaire   +3 more sources

Crecimiento, propiedades estructurales, térmicas, ópticas y eléctricas del CuIn5S8

open access: yesRevista Técnica de la Facultad de Ingeniería
En el presente trabajo el compuesto CuIn5S8 es obtenido por fusión directa de la mezcla estequiométrica de los elementos químicos constituyentes. Los datos de la difracción de rayos X en polvo, indexados con el programa TREOR 90, muestran un cristal ...
Josefa Estévez   +6 more
doaj  

[Cancer stem cells in oral squamous cell carcinoma. Literature review]. [PDF]

open access: yesRev Cient Odontol (Lima), 2022
Rodríguez-Vargas MP   +4 more
europepmc   +1 more source

Liquid Organic Hydrogen Carrier Concepts and Catalysts for Hydrogenation and Dehydrogenation Reactions. [PDF]

open access: yesMolecules
Cabrera G   +5 more
europepmc   +1 more source

[Challenges and strategies to recover and dynamize primary care: SWOT-CAME analysis in a Health Department]. [PDF]

open access: yesAten Primaria
Guilabert M   +6 more
europepmc   +1 more source

Modelos de superficies e intercaras : transiciones de fase, desorden y aplicaciones

open access: yes, 2005
En esta memoria estudiamos varios modelos formulados en una dimensión. Primero estudiamos el modelo de sine-Gordon, que es adecuado para estudiar el crecimiento de superficies sólidas, encontrando un comportamiento de tamaño finito semejante a una transición de fase termodinámica.
openaire   +2 more sources

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