Results 41 to 50 of about 3,352 (176)

Craneotomías mínimamente invasivas y su identificación imagenológica, serie de casos

open access: yesRevista Chilena de Radiología
Objetivo: Los esfuerzos por descubrir accesos quirúrgicos cada vez más seguros, efectivos y cosméticamente satisfactorios han permitido el desarrollo de variadas técnicas neuroquirúrgicas, las cuales pueden identificarse en controles imagenológicos ...
Ivanko Grlica-Bahamondes   +2 more
doaj   +1 more source

Camarones, camaroneros y escasez hídrica: desafíos para la sostenibilidad pesquera de Cryphiops caementarius en la cuenca semiárida del río Choapa, Chile

open access: yesMarine and Fishery Sciences, 2022
Cryphiops caementarius es un camarón anfídromo nativo de relevancia ecológica y pesquera en cuencas hidrográficas del norte de Chile. Esta especie representa un componente importante de la identidad cultural de las comunidades de camaroneros que ...
Carlos Velásquez Gallardo   +4 more
doaj   +1 more source

Reseña y futuro del sector forestal Región de Coquimbo, Chile = Review and future of the forest sector Región of Coquimbo, Chile

open access: yesCiencia & Investigación Forestal, 2021
Partiendo de la base que la Región de Coquimbo es una zona de transición en lo climático y vegetacional, que detenta un especial sistema de tenencia de la tierra, que carece de una tradición forestal y posee una alta proporción de su territorio afectado por distintos grados de erosión, tanto que el mayor problema ambiental es la desertificación, se ...
openaire   +2 more sources

Photoperiod modulates male sexual maturation in the Emperor tetra (Nematobrycon palmeri), a strictly tropical ornamental fish

open access: yesJournal of the World Aquaculture Society, Volume 57, Issue 3, June 2026.
Abstract Photoperiod manipulation is widely used to regulate reproduction in temperate fish species, but little is known about its effects in strictly tropical species. This study evaluated whether the Emperor tetra (Nematobrycon palmeri), a tropical ornamental fish, can modulate sexual maturation in response to artificial light regimes.
Lury N. García   +2 more
wiley   +1 more source

Presentación

open access: yesRevista de Derecho (Coquimbo)
No resulta fácil presentar esta Revista. Su contenido, ya lo verán los lectores, es muy variado, tanto en su esencia como en su forma y ello, porque no es un ejemplar más de una revista de Derecho, sino el reflejo de las actividades desarrolladas en un ...
Luz María Reyes S.
doaj   +1 more source

Prior Exposure and Educational Environment towards Entrepreneurial Intention

open access: yesJournal of Technology Management & Innovation, 2017
This research is based on the responses to a questionnaire applied to 351 students of business management in Chile and Colombia. Through the analysis of structural equations on Ajzen’s model, we found that entrepreneurial education, the University ...
Karla Soria-Barreto   +3 more
doaj   +1 more source

Molecular characterization and expression patterns of peroxiredoxin V (PrxV) from the scallop Argopecten purpuratus after Vibrio splendidus challenge

open access: yesAquaculture Reports, 2021
The scallop Argopecten purpuratus is a species of importance for aquaculture in Chile and Peru, but in recent years, they have decreased their growth rates and experienced massive mortalities potentially associated with pathogenic infections ...
Roxana González   +3 more
doaj   +1 more source

Meridional Dipole in Eddy Activity Along Peruvian Coast During Eastern Pacific El Niño Events

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Mesoscale oceanic eddies (O $O$(100)km) play a key role in regulating climate by affecting the transport of heat and water mass properties. However, most climate models struggle to simulate these eddies due to coarse horizontal resolution. Using a 120‐year ultra‐high‐resolution simulation with 1/10° ${}^{\circ}$ horizontal ocean resolution ...
Carlos Conejero   +5 more
wiley   +1 more source

Non-invasive Diagnostic of Helicobacter pylori in Stools by Nested-qPCR [PDF]

open access: yesPolish Journal of Microbiology, 2018
The aim of this study was to develop a non-invasive diagnostic test for the detection of Helicobacter pylori in stool samples from digestive symptomatic patients, using a new protocol of nested-qPCR. A total of 143 patients were invited to participate in
María I. Taborda   +10 more
doaj   +1 more source

A composite‐loss graph neural network for the multivariate post‐processing of ensemble weather forecasts

open access: yesQuarterly Journal of the Royal Meteorological Society, Volume 152, Issue 777, April 2026 Part B.
The dual graph neural network (dualGNN), trained with a composite loss combining the energy score (ES) and variogram score (VS), consistently outperformed models optimized solely for ES or the continuous ranked probability score in the multivariate setting, as well as empirical copula approaches.
Mária Lakatos
wiley   +1 more source

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