Results 61 to 70 of about 767,044 (165)

Early Cambrian U-Pb zircon age and Hf-isotope data from the Guasayán pluton, Sierras Pampeanas, Argentina: implications for the northwestern boundary of the Pampean arc [PDF]

open access: yes, 2016
An Early Cambrian pluton, known as the Guasayán pluton, has been identified in the central area of Sierra de Guasayán, northwestern Argentina. A U?Pb zircon Concordia age of 533 ± 4 Ma was obtained by LA-MC-ICP-MS and represents the first report of ...
Alasino, Pablo Horacio   +8 more
core   +2 more sources

Role of protected areas in mitigating range loss and local extinctions of terrestrial mammals

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Protected areas (PAs) are a major tool in biodiversity conservation, but the extent to which they mitigate species declines is often unclear. We evaluated the effectiveness of PAs in mitigating range contraction and local extinction for 483 terrestrial mammal species.
Andrea Cristiano   +5 more
wiley   +1 more source

Estudio de habilidades metacognitivas en docentes universitarios colombianos

open access: yesPapeles, 2020
Se realiza un estudio sobre habilidades metacognitivas que reportan 118 docentes universitarios de Bogotá a través de un inventario de habilidades metacognitivas para docentes (MAIT).
Andrea Barrera-Bernal   +1 more
doaj  

Late Cambrian acritarchs from the Santa Rosita Formation: implications for the Cambrian-Ordovician boundary in the eastern Cordillera of northwest Argentina [PDF]

open access: yes, 2003
Marine phytoplankton from the Late Cambrian are described for the first time in the Eastern Cordillera of northwest Argentina. The acritarch assemblage was recovered from an offshore lower mudstone unit towards the base of the Casa Colorada Member (Santa
Buatois, Luis Alberto   +2 more
core  

Correlación entre mediciones séricas y gasométricas de glucosa, sodio y potasio en pacientes pediátricos críticos del Hospital Nacional de Niños, Costa Rica (julio-octubre, 2024)

open access: yesCiencia & Salud
En el laboratorio clínico del Hospital Nacional de Niños de Costa Rica se reciben actualmente muestras duplicadas para el monitoreo de glucosa, sodio y potasio en pacientes críticos.
Arlín Méndez Sáenz   +2 more
doaj   +1 more source

Patologías glandulares del endocervix y su correlación citohistológica [PDF]

open access: yes, 2015
Tesis (Tecnólogo Médico, mención morfofisiopatología y citodiagnóstico)El desarrollo de neoplasias en epitelio glandular del cuello uterino difiere de las que se originan en epitelio escamoso, principalmente porque la etiopatogenia si bien en la ...
Figueroa Muñoz, Daniela Francisca   +1 more
core  

Role of forest edges and other seminatural linear landscape features in structuring wild bee habitat connectivity in intensively managed landscapes

open access: yesConservation Biology, Volume 39, Issue 6, December 2025.
Abstract Pollinator conservation schemes typically focus on conserving existing, restoring degraded, or creating new wild bee habitats. Their effectiveness depends on dispersal corridors enabling habitat colonization by bees. However, the role of seminatural linear landscape structures (LLS) in connecting pollinator communities across intensively ...
Markus A. K. Sydenham   +6 more
wiley   +1 more source

Metabolismo óseo en niños aragoneses con normopeso y niños con sobrepeso/obesidad

open access: yesAdvances in Laboratory Medicine
En la infancia y adolescencia se produce un aumento de masa ósea, hasta alcanzar un pico máximo, determinante para la salud ósea. Los marcadores óseos evalúan los procesos de formación-resorción ósea.
Cuenca Alcocel José   +6 more
doaj   +1 more source

Relación entre gamificación y rendimiento académico en estudiantes de superior, un estudio desde la pedagogía social

open access: yesClío
La presente investigación examina cómo las estrategias gamificadas influyen en los logros académicos de estudiantes universitarios, adoptando un enfoque de pedagogía social que privilegia la construcción colectiva del conocimiento por encima del ...
José Alfredo Corrales Lozano   +3 more
doaj   +1 more source

Muscle glycogen and blood lactate in yellowfin tuna, Thunnus albacares, and skipjack, Katsuwonus pelamis, following capture and tagging [PDF]

open access: yes, 1964
ENGLISH: Tagging and the recovery of tagged yellowfin (Thunnus albacares) and skipjack (Katsuwonus pelamis) tunas are important aspects of the investigations conducted by the Inter-American Tropical Tuna Commission in the Eastern Tropical Pacific Ocean.
Barrett, Izadore, Connor, Anne Robertson
core  

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