Results 31 to 40 of about 1,821 (117)

Uma incursão pelo universo das publicações em Portugal

Linguamática, 2012
Neste artigo descrevemos um projeto de colaboração entre a Linguateca e o RCAAP (Repositório Científico de Acesso Aberto de Portugal) no sentido de determinar a possibilidade de melhorar a procura no meta-repositório deste último com ferramentas de ...
Diana Santos, Fernando Ribeiro
doaj  

Deep Eutectic Solvent‐Type Mixture as a Green Catalyst in the Solvent‐Free Cycloaddition of CO2 and Epoxides

ChemSusChem, Volume 19, Issue 14, 29 July 2026.
A green, metal‐free catalytic system based on a deep eutectic solvent‐type mixture of tetrabutylammonium iodide and levulinic acid enables the solvent‐free cycloaddition of carbon dioxide (CO2) to epoxides. Cooperative acid–nucleophile activation affords cyclic carbonates in up to 95% yield at atmospheric pressure using only 1.4 mol% of catalyst.
Tatiana Martí, Xavier Marset, Celia Guillem, Gabriela Guillena, Santiago Aparicio, Diego J. Ramón   +5 more
wiley   +1 more source

Atenção online da produção científica dos repositórios institucionais brasileiros

Biblios
Objetivo. Analisar a visibilidade e a atenção online das produções científicas depositadas em Repositórios Institucionais brasileiros, por meio da altmetria. Método.
Rejane Valéria Santos, Ronaldo Ferreira de Araújo   +1 more
doaj   +1 more source

Indicadores para la evaluación de repositorios institucionales de acceso abierto

Anales de Documentación, 2014
Después de 10 años de la declaración de Berlín, se ha realizado un estudio para definir unos indicadores de evaluación de repositorios, enfocados a la gestión interna y a la satisfacción de los usuarios.
Rocío Serrano Vicente, Remedios Melero Melero, Ernest Abadal   +2 more
doaj   +1 more source

The patient journey for people with dementia and their carers in Peru: From first symptoms to diagnosis and treatment

Alzheimer's &Dementia, Volume 22, Issue 7, July 2026.
Abstract INTRODUCTION We explored how people with dementia (PwD) and their carers navigate Peru's health system for diagnosis and treatment. METHODS We interviewed PwD (n = 4), carers (n = 18), and healthcare workers (n = 17) from four sites. We developed a patient journey map using thematic analysis and participant validation.
Daniela Rossini‐Vilchez, Francisco Jose Tateishi‐Serruto, Christopher Butler, María Sofía Cuba‐Fuentes, Silvana Perez‐Leon, Miriam Lúcar‐Flores, Guillermo Almeida‐Huanca, L. Carolina Olaya‐Silva, J. Jaime Miranda, Maria Kathia Cardenas, Jose Carlos Vera Tudela, Antonio Bernabe‐Ortiz, Rafael A. Calvo, Francisco Diez‐Canseco, Filipa Trigo Landeiro, Graham Moore, Lee White, William Whiteley, María Lazo‐Porras, Jemma Hawkins, the IMPACT Salud Research Group   +20 more
wiley   +1 more source

High Childhood Leukemia Mortality Rates in Mexico Associated to Water Contamination in Areas of Oil and Gas Extraction

GeoHealth, Volume 10, Issue 7, July 2026.
Abstract Acute lymphoblastic leukemia (ALL) is the leading cause of death in Mexican children, yet water‐mediated environmental pathways remain largely unexplored as contributors to its spatial distribution. We analyzed ALL mortality records for individuals aged 0–19 years across all Mexican municipalities from 2003 to 2023, using publicly available ...
Madeleine Nicolas, Elizabeth Ortiz Gutiérrez, Jesús Andrés Barranco Pérez, Omar Amador‐Muñoz, Jaqueline Calderón Hernández, Elena R. Álvarez‐Buylla, Juan Carlos Martínez‐García   +6 more
wiley   +1 more source

Es un repositorio, es un depósito, es un archivo...: Open Access, colecciones digitales y valor

Arbor: Ciencia, Pensamiento y Cultura, 2009
En el contexto del Acceso Abierto a la literatura científica y académica, los repositorios, tanto los institucionales como los disciplinares o temáticos, van a jugar un papel importante.
Jean-Claude Guédon
doaj   +1 more source

Phylogenetic analysis and the recognition of a new genus for Mexican Crassulaceae segregated from Echeveria

TAXON, Volume 75, Issue 3, June 2026.
Abstract Systematic knowledge of the Mexican Crassulaceae is slowly progressing as data from new DNA regions and species sampling efforts increase. We compiled and generated new rbcL, matK, rps16, ITS/ITS2, and ETS DNA sequences and performed an updated phylogenetic reconstruction for a group of 131 Mexican Crassulaceae terminals from 11 of the 13 ...
Luis Emilio de la Cruz‐López, David Espinosa   +1 more
wiley   +1 more source

Humanism at the Council of Constance. Diego de Anaya, Classical Manuscripts and Education in Salamanca

Renaissance Studies, Volume 40, Issue 3, Page 469-488, June 2026.
Abstract Due to their prolonged and multicultural nature, councils functioned historically as hubs for the exchange of ideas, discourse, diplomacy and rhetoric, reflecting broader cultural trends. In the Middle Ages, no international forums were comparable to ecumenical councils, where diverse and influential groups from various regions convened to ...
Federico Tavelli
wiley   +1 more source

Acceso libre y antiplagio en los repositorios institucionales y bibliotecas de las Facultades de Educación en España

Revista Latinoamericana de Tecnología Educativa, 2018
Los repositorios institucionales constituyen una estrategia de promoción de la producción científica y de los recursos educativos abiertos en las universidades.
Violeta Cebrián-Robles, Manuela Raposo-Rivas, María do Carmo Duarte-Freitas   +2 more
doaj   +1 more source