Results 51 to 60 of about 2,358,232 (253)

Reading Resistances in Ralph Waldo Emerson and José Martí

open access: yesJournal of American Studies, 2020
This article takes as its starting point a consideration of the ways in which the ideological methodology of “New Americanist” criticism has closed off possibilities of reading that might choose to value ambiguity, contradiction, and excess – elements ...
Andrew S. Taylor
semanticscholar   +1 more source

Oriented for Efficiency: Textured Se Thin Films Fabricated by Vapor Transport Deposition for Emerging Photovoltaic Applications

open access: yesAdvanced Energy and Sustainability Research, Volume 6, Issue 12, December 2025.
A low‐temperature vapor transport deposition (VTD) method enables controlled crystallographic texture in Se thin films. Higher annealing temperatures promote vertical (003)‐preferred orientation, enhancing film quality and device efficiency. Optimized morphology and orientation yield solar cells with > 4% efficiency under AM1.5 G and up to 10% under ...
Ivan Caño   +18 more
wiley   +1 more source

Los mapas conceptuales, las TIC y el e-learning

open access: yesRevista Iberoamericana de Educación, 2007
A principio de los años 60 las computadoras habían comenzado a extenderse por las universidades, sobre todo en Estados Unidos y su uso empezó a ser parte integrante de la formación de los estudiantes universitarios en algunas carreras.
Lydia Rosa Ríos Rodríguez   +4 more
doaj  

Los fundadores del pensamiento cubano. De Félix Varela a José Martí. [Reseña] [PDF]

open access: yes, 2007
Reseña de: Ignacio DELGADO GONZÁLEZ, Los fundadores del pensamiento cubano. De Félix Varela a José Martí, edición preparada por Raúl Fornet- Betancourt, Wissenschaftsverlag Mainz, Aachen 2006, 184 ...
Saranyana, J.I. (Josep Ignasi)
core  

Una propuesta didáctica para el aprendizaje de la Física

open access: yesRevista Iberoamericana de Educación, 2006
Hoy en día se produce un gran impacto de la ciencia y la tecnología en la producción y la vida de las personas, provocando la necesidad apremiante de una formación científica masiva (UNESCO, 1993), lo que conduce a que el encargo social de la escuela ...
Guillermo Bernaza Rodríguez   +2 more
doaj  

Radio Emission from 3D Relativistic Hydrodynamic Jets: Observational Evidence of Jet Stratification [PDF]

open access: yes, 1999
We present the first radio emission simulations from high resolution three dimensional relativistic hydrodynamic jets, which allow for a study of the observational implications of the interaction between the jet and external medium.
Ewald Müller   +7 more
core   +2 more sources

Highly Efficient Air Sterilization via Low‐Temperature Interfacial Evaporation in Inductively Heated Superhydrophilic Ferromagnetic Filters

open access: yesAdvanced Science, Volume 12, Issue 44, November 27, 2025.
The first low‐temperature interfacial evaporation air sterilization technology is presented. It is based on a superhydrophilic ferromagnetic micro/nano‐structured stainless‐steel filter, showing ultra‐efficient inductive heating. This technology has demonstrated over 99.6% of SARS‐CoV‐2 and RSV elimination at temperatures in the 60–80 °C range.
Arnau Fons   +15 more
wiley   +1 more source

José Martí: del liberalismo al democratismo antiimperialista

open access: diamondRevista Novos Rumos, 2019
José Martí, salvo de versos y una novela, no llegó nunca a escribir un libro. No obstante, su extensa y prolífica labor de prosista llena varios volúmenes. Las expresiones que dejó de su pensamiento político y social ha habido que rastrearlas, dispersas,
Isabel Monal
openalex   +2 more sources

Ethics and Personalized Training: An Experience with Cuban University Professors Training Administrative Personnel

open access: yesRevista Electrónica Educare, 2018
The postulates of Víctor García Hoz, on teaching staff’s behaviors characterized by preferences and attitudes, have been little analyzed in postgraduate teaching programs.
Adilen Carpio-Camacho   +3 more
doaj   +1 more source

Producción de textos escritos. Lo epistémico y lo desarrollador

open access: yesCiencia e Interculturalidad, 2020
La escritura posee una función heurística,que permite la investigación de ciertos códigos que le permiten ofrecen significación a hechos los cuales deben explicarse.
Israel Acosta Gómez   +2 more
doaj   +1 more source

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