Results 51 to 60 of about 7,691 (182)

Mars Alteration on Earth: A Spectroscopic Study of Hydrated Silica and Biomarker Preservation in La Palma Lava Tubes

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Volcanic tubes provide stable environments where unique mineralogical assemblages can form and be preserved, making them valuable terrestrial analogs for Martian studies. This work investigates tree‐like structures within two lava tubes on La Palma Island (Canary Islands, Spain) through a comprehensive geochemical and mineralogical ...
F. Alberquilla   +10 more
wiley   +1 more source

Así ama un amigo a su amigo

open access: yesEstudios Nietzsche, 2010
En este artículo se considera que la relación de identidad construida por Nietzsche entre el amigo y el enemigo es uno de los aspectos más polémicos de su pensamiento. Para introducir este tema se exponen las ideas de dos de los pensadores que influyeron en él a este respecto, para luego analizar el sentido en que desde esta filosofía el amigo es un ...
openaire   +2 more sources

Velhos amigos [PDF]

open access: yesPsicologia USP, 2008
Este texto faz uma breve apresentação do livro de estórias Velhos Amigos, de Ecléa Bosi, do ponto de vista do tom dominante, do estilo, dos temas e de suas principais motivações.
openaire   +4 more sources

Understanding the Molecular Landscape of Alopecia Areata: Key Genes, Regulatory Networks, and Therapeutic Targets

open access: yesHealth Science Reports, Volume 9, Issue 7, July 2026.
ABSTRACT Introduction Alopecia areata (AA) is an autoimmune disorder characterized by hair loss due to immune‐mediated destruction of hair follicles. The polygenic nature of AA, influenced by genetic and environmental factors, complicates its pathogenesis.
Ahmed Ibrahim AbdElneam   +4 more
wiley   +1 more source

La alimentación de los adolescentes: el lugar y la compañía determinan las prácticas alimentarias

open access: yesAquichan, 2011
DOI: 10.5294/aqui.2011.11.2.6 Objetivo: presentar los significados de la alimentación y las prácticas relacionadas de un grupo de adolescentes escolarizados del colegio Nuestra Señora de Guadalupe, de Cali, Colombia.
Olga Osorio-Murillo   +1 more
doaj  

Integrating Nuclear Magnetic Resonance into Bioprocess Control of Clinical‐Grade Extracellular Vesicle Manufacturing

open access: yesJournal of Extracellular Vesicles, Volume 15, Issue 7, July 2026.
Nuclear magnetic resonance (NMR) in bioprocess design for the production of extracellular vesicles (EVs). NMR‐metabolomics enables real‐time bioprocess intelligence, bridging biological complexity with GMP rigor and accelerating the clinical translation of EV‐based therapies.
Santiago Roura   +2 more
wiley   +1 more source

Parameter Hierarchies and Language Contact: The Present Perfect in Ecuadorian Spanish1

open access: yesTransactions of the Philological Society, Volume 124, Issue 2, Page 513-546, July 2026.
Abstract This article explores the hypothesis that the ‘fine‐grained’ grammatical differences that adult grammars under contact are said to be sensitive to (e.g., Hicks et al. 2023) amount to micro/nanoparametric distinctions, in the sense of Roberts (2019).
Norma Schifano
wiley   +1 more source

Population dynamics of the migratory fish Prochilodus lineatus in a neotropical river: the relationships with river discharge, flood pulse, El Niño and fluvial megafan behaviour

open access: yesNeotropical Ichthyology
The relative importance of flood pulse dynamics and megafan behaviour for the Sábalo (Prochilodus lineatus) catches in the neotropical Pilcomayo River is studied.
Marinke J. M. Stassen   +5 more
doaj   +1 more source

Elementos para una crítica ecologista a la venta de fijación de carbono

open access: yesCiencias Ambientales, 1998
No disponible/Not ...
Gabriel Rivas
doaj   +1 more source

A randomized comparative effectiveness trial to evaluate two programs for promotion of physical activity after spinal cord injury in manual wheelchair users

open access: yesFrontiers in Sports and Active Living
ObjectiveThe goal of this study was to determine the effectiveness of a novel whole of day activity accumulation (WODAA) physical exercise program. WODAA physical activity and physiological outcomes were compared to outcomes from individuals using a ...
Jenna M. Martinez   +5 more
doaj   +1 more source

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