Results 1 to 10 of about 113,315 (209)

A Metal‐Organic Polyhedron‐to‐Coordination Polymer Transition Revealed by 3D Electron Diffraction [PDF]

open access: yesAngewandte Chemie, Volume 137, Issue 43, October 20, 2025.
Here, we show that 3D electron diffraction (3D ED) is an effective technique to observe structural transformations in porous metal‐organic polyhedra (MOPs), as well as for obtaining the structure of the activated phases of these materials. A MOP‐to‐coordination polymer transition is revealed, and explains the reduction in cooperative gas uptake by the ...
Matthew P. Snelgrove   +12 more
wiley   +3 more sources

Individual and combined effects of chemical and mechanical power on postoperative pulmonary complications: a secondary analysis of the REPEAT study [PDF]

open access: yesAnaesthesia, Volume 80, Issue 12, Page 1510-1518, December 2025.
Summary Introduction Intra‐operative supplemental oxygen and mechanical ventilation expose the lungs to potentially injurious energy. This can be quantified as ‘chemical power’ and ‘mechanical power’, respectively. In this study, we sought to determine if intra‐operative chemical and mechanical power, individually and/or in combination, are associated ...
Lukas M. Müller‐Wirtz   +517 more
wiley   +2 more sources

De minotauro yendo a mariposa : aproximación a los símbolos prehispánicos en la poesía de José Martí [PDF]

open access: diamond, 2011
On April 8, 1895, on his wat to the way to Cabo Hatiano, Martí wrote in his diary: "I read about Indians." Later he would require that the reading was about the heroic resistance of the Aztecs against the troops of Hernán Cortés.
Moris Campos, Judith
core   +4 more sources

Challenges of IoT Deployment in the Context of Developing Countries

open access: yesTH Wildau Engineering and Natural Sciences Proceedings, 2021
The concept of the Internet of Things (IoT) is not exactly a novelty, even if it has not burst out yet with all the force that the market expected. The 5th generation of mobile telephony (5G) is rushing to deploy in the midst of a real trade war, and ...
Bernardo Y. León-Ávila   +4 more
doaj   +1 more source

La prehistoria. Dilema Conceptual

open access: yesDebates por la Historia, 2022
Es común que por adherirse a la tradición y presupuestos teóricos que datan de muchos años, al abordar la periodización de la historia, se haga alusión a la añeja división entre Prehistoria e Historia.
Mariano Próspero Álvarez Farfán   +2 more
doaj   +1 more source

El sentido de una comprensión de textos con sentido. Un estudio de caso.

open access: yesRehuso, 2020
La comprensión es un proceso mediante el cual originamos significados al comprender un texto, y en donde el receptor comienza por reconocer las palabras y signos auxiliares, dependiendo del contexto, de las características del texto y la situación ...
Israel Acosta Gómez   +4 more
doaj   +1 more source

Actividades que contribuyen al conocimiento de la Historia Local en estudiantes de noveno grado del ESBU Mártires de la Sierpe

open access: yesCiencia e Interculturalidad, 2021
Este artículo ha abordado actividades que contribuyen al vínculo de los conocimientos de Historia Local con los de Historia de Cuba, a tenor de las necesidades objetivas descubiertas en los estudiantes de 9no.
Isolidia Hernández Torrez   +2 more
doaj   +1 more source

Loving melancholy in amistad funesta by José Martí [PDF]

open access: yes, 2017
Existe una multitud de formas de acercarnos a la obra literaria de José Martí. En esta ocasión, se va mostrar de qué forma está impregnado el concepto de melancolía en su novela Amistad funesta.
Segura Zariquiegui, Ainhoa
core   +2 more sources

Neoadjuvant endocrine therapy for luminal breast cancer treatment: a first-choice alternative in times of crisis such as the COVID-19 pandemic [PDF]

open access: yes, 2020
The epidemiological emergency caused by CoV-2 (COVID-19) has changed priorities in breast cancer management. In those places where the pandemic has had the greatest effect, it is of paramount importance for most patients to be at home, reducing or ...
Martí, Covadonga   +1 more
core   +1 more source

Co-inoculation of microbial biofertilizers in cucumber and green bean and its effect on growth and yield

open access: yesTemas Agrarios, 2023
Inoculation between bacteria and fungi can be an efficient and viable alternative for production of horticultural crops. The purpose of this research was to evaluate the effects of co-inoculation between Trichoderma harzianum and the biostimulant ME-50 ...
Alexander Calero Hurtado   +5 more
doaj   +1 more source

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