Results 31 to 40 of about 13,337 (182)

Prospects of multipurpose biomonitoring for fisheries assessment based on environmental nucleic acids

open access: yesJournal of Fish Biology, EarlyView.
Abstract Methods using environmental nucleic acids have become highly effective for monitoring aquatic biodiversity, with an array of suitable use cases, including metrics for fisheries assessment. Traditional methods for assessing fish populations often rely on invasive techniques with limited spatial and temporal coverage.
Ana Ramón‐Laca   +6 more
wiley   +1 more source

Cryptic diversity and recent diversification in the Pyrrhulina australis species complex (Characiformes, Lebiasinidae) revealed by mitochondrial DNA

open access: yesJournal of Fish Biology, EarlyView.
Abstract Pyrrhulina australis Eigenmann & Kennedy, 1903, is widely distributed across the main hydrographic basins of South America. The taxonomic integrity of this species is nevertheless challenged by the lack of clear diagnostic characters, its marked geographic variation and the morphological overlap with its congeners. In this context, the present
Taina Barbosa De Souza   +6 more
wiley   +1 more source

Trophic niche overlap between native and non‐native fishes in central Anatolian lakes, Türkiye

open access: yesJournal of Fish Biology, EarlyView.
Abstract The Central Anatolian region of Türkiye exhibits exceptionally high freshwater fish diversity and endemism and is increasingly exposed to the introduction of non‐native taxa. We examined the diet composition, prey selectivity and interspecific dietary overlap among eight native and five non‐native fish species across seven lakes in Central ...
Arely Ramírez‐García   +17 more
wiley   +1 more source

Calidad en la Educación Superior española: los estudios de doctorado en Educación Matemática

open access: yesEducatio Siglo XXI, 2003
Este artículo ofrece una discusión extensa sobre la calidad de la investigación española en Educación Matemática, en base a los estudios de doctorado, utilizando una serie de criterios. En un breve balance, se consideran las realizaciones generales y las
Manuel Torralbo Rodríguez   +3 more
doaj  

Early Parenthood and Educational Outcomes. Are There Differences Between Young Teenage Mothers and Fathers?

open access: yesOxford Bulletin of Economics and Statistics, EarlyView.
ABSTRACT A broad literature has established the negative effects of teen motherhood on educational outcomes. Yet relatively little is known about the educational effects of becoming a teen father. Using siblings fixed effects on population‐level data from Chile I compare educational outcomes of young teen‐mothers and teen‐fathers and provide new ...
Maria Palma Carvajal
wiley   +1 more source

Hacia la estandarización de los perfiles de egreso de los programas de doctorado

open access: yesRevista Digital de Investigación en Docencia Universitaria, 2019
En este artículo se presenta el análisis de los perfiles de egreso declarados por los programas de Doctorado en Educación dictados en territorio chileno.
Karen Núñez-Valdés   +1 more
doaj   +1 more source

Epidemiological, Clinical and Allergic Profile of Patients With Dyshidrotic Eczema (Acute and Recurrent Vesicular Dermatitis): Evaluation of the Spanish Registry of Research in Contact Dermatitis and Cutaneous Allergy (REIDAC)

open access: yesContact Dermatitis, Volume 95, Issue 3, Page 286-294, September 2026.
In this exploratory analysis, dyshidrotic eczema demonstrated a distinct sensitisation pattern compared with non‐dyshidrotic hand eczema. The lower proportion of clinically relevant reactions amongst positive patch tests suggests a multi‐factorial and not exclusively allergic background.
Araceli Sánchez‐Gilo   +28 more
wiley   +1 more source

Percepciones de Investigadores en Formación respecto al Desarrollo de Competencias

open access: yesRevista Digital de Investigación en Docencia Universitaria, 2018
Los estudios de doctorado conducen al nivel más alto de cualificación académica, promoviendo el desarrollo de competencias que habiliten para el desempeño como líderes en la generación de conocimiento científico y en la aplicación del mismo a la mejora ...
Lourdes Villardón-Gallego   +1 more
doaj   +1 more source

Key Strategies for Improving Psychiatric Home‐Based Care in Spain: A Modified Delphi Study

open access: yesScandinavian Journal of Caring Sciences, Volume 40, Issue 3, September 2026.
ABSTRACT Aims This study aimed to identify and prioritize key strategies for improving a psychiatric home‐based care programme, the Crisis Resolution and Home Treatment (CRHT) intervention in Catalonia, Spain. The objective was to incorporate the perspectives of service users, family caregivers and healthcare professionals to guide quality improvement ...
Ana María Besoaín‐Cornejo   +4 more
wiley   +1 more source

Retos formativos y pedagógicos del doctorado en el siglo XXI / Training and educational challenges of the XXI century Ph.D.

open access: yesCuaderno de Pedagogía Universitaria, 2015
Resumen El artículo analiza algunos de los retos que se plantean a los programas de doctorado en el siglo XXI. Tras explicar la naturaleza de todo doctorado, se describe la situación actual de estos estudios en algunos países destacados del mundo: tanto
Enrique Sánchez Costa
doaj   +1 more source

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