Results 61 to 70 of about 475,498 (193)

Isostructural Analysis in Proposed Crystallization Mechanisms at the Molecular Level of Methyl 4‐bromobenzoate and Methyl 4‐iodobenzoate

open access: yesHelvetica Chimica Acta, Volume 109, Issue 9, September 2026.
Proposed molecular‐level crystallization mechanisms for halogenated aryl esters were developed based on theoretical energetic and topological data regarding intermolecular and supramolecular interactions. Energetic analysis was used to determine the hierarchy of interactions guiding supramolecular structure growth along the three axes, as well as to ...
Patrick Teixeira Campos   +2 more
wiley   +1 more source

Referencia bibliográfica [PDF]

open access: yes, 2023
Referencia ...
Zapata-Castañeda, Pedro Nel
core  

Biases and Uncertainties in Radiosonde‐Based Precipitable Water Vapor

open access: yesEarth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Precipitable water vapor (PWV) plays an important role in weather and climate phenomena. Accurate PWV measurements based on radiosonde observations are essential for assessing remote‐sensing measurements and long‐term trends. This study examines the performance of PWV algorithms, including their intrinsic biases and their sensitivity to ...
António P. Ferreira   +2 more
wiley   +1 more source

Comunicación Académica y Acceso Abierto: Acciones para un Política Pública en América Latina

open access: yes, 2019
Documento redactado como insumo para las autoridades regionales que asistieron a la reunión anual del Global Research Council con acuerdo del Consejo Directivo.
LA Referencia. Consejo Directivo
core   +1 more source

Still navigating across the Atlantic: a view of a virtual reference service for academic libraries. [PDF]

open access: yes, 2006
This paper presents the Via Virtual Project, a virtual reference service designed by the University of Cadiz as a strategy in response to the new educational model in Europe.
Fernández Alfaro, Leonor   +4 more
core   +1 more source

Muralismo como encargo participativo: Holografía de lo (in)visible en comunidades a’i cofán de la selva colombiana

open access: yesAnthropology of Consciousness, Volume 37, Issue 2, Fall 2026.
ABSTRACT When mural art in indigenous communities is commissioned as a participatory project, several methodological, epistemological, and aesthetic questions arise. This text proposes a horizontal and investigative approach to what we can simply call ‘muralism in the A'i Cofán community context,’ not as significant works executed in communities, but ...
Daniel Alberto Restrepo Hernández   +2 more
wiley   +1 more source

El servicio, leitmotiv de los bibliotecarios de consulta o de referencia. Trabajo final del cuarto semestre presentado en el curso "Administración de Bibliotecas I" de la Licenciatura en Bibliotecología, Facultad de Filosofía y Letras, Universidad Autónoma de Nuevo León, México [PDF]

open access: yes, 1995
This is an academic final course research paper ("Service, the leitmotiv of reference librarians") where I highlight a very important concept for the work of the reference librarian: service.
Muela-Meza, Zapopan Martín
core   +1 more source

The linguistic and stylistic content in teaching Spanish in Gabon: attitudes and teaching practices

open access: yesAula, 2016
Always it has made us perplex, the position thought by the majority of the professorship gabonés as for if we have to or not to be interested to the partial or complete study of the linguistic and semantic aspects during the explanation and comment of a ...
Jeanne Berthe MAKAYA MAVOUNGOU
doaj   +1 more source

Effects of Temperature Peaks and Water Stress on Tropical Seed Germination: Experimental Trials With Species From Brazil's Northeastern Coastal Zone

open access: yesBiotropica, Volume 58, Issue 5, September 2026.
ABSTRACT Understanding the effects of high temperatures and water deficit on germination provides valuable insights into seed stress tolerance, guiding the use of native seeds in ecological restoration. This study aimed to evaluate the effects of (1) temperature peaks and (2) water stress treatments and post‐stress recovery on the germination of some ...
Hipolyana Simone de Oliveira   +5 more
wiley   +1 more source

Mutational analysis of HIV in Colombian patients

open access: yes, 2011
Objetivo. La resistencia a los medicamentos antirretrovirales se ha asociado con mutaciones características en los genes que codifican las enzimas que son el blanco de la terapia antirretroviral. En el presente trabajo se busca evaluar, desde el punto de 
Gómez, Alberto; Instituto de Referencia Andino; Pontificia Universidad Javeriana   +6 more
core  

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