Results 41 to 50 of about 318,828 (161)

Climatic and Edaphic Drivers of Soil Organic Carbon and Pyrogenic Carbon Stocks Across Elevation and Disturbance Gradients in Colombian Andean Forests

open access: yesGlobal Change Biology, Volume 31, Issue 7, July 2025.
This study examined soil organic carbon (SOC) and pyrogenic carbon (PyC) stocks in tropical Andean soils across elevation and disturbance gradients in Colombia. SOC stocks to 100 cm depth averaged 433.10 Mg C ha−1 while PyC was 34.13 Mg C ha−1. Key drivers of PyC stocks include soil clay (%), mean annual precipitation (PA), pH, Ca, and NDVI, which ...
Carmen R. Montes‐Pulido   +5 more
wiley   +1 more source

Oceanographic observations from the eastern Pacific Ocean collected by the R/V Shoyo Maru, October 1963 – March 1964 [PDF]

open access: yes, 1965
ENGLISH: The Nankai Regional Fisheries Research Laboratory of Kochi, Japan conducted a long-line fishery exploration and hydrographic survey in the eastern Pacific Ocean aboard the R/V Shoyo Maru during October 1963- March 1964.
Broenkow, William W., Forsbergh, Eric D.
core  

Discrimination Among New Vegetative Materials of Passiflora edulis Sims. From Canary Islands by Their Volatile Profile

open access: yesFlavour and Fragrance Journal, Volume 40, Issue 2, Page 365-383, March 2025.
The volatile compound profiling of different passion fruit samples grown in the Canary Islands is performed by HS‐SPME‐GC–MS, while applying novel green metrics to show sustainability, and with linear discrimination analysis able to discriminate a new variety. ABSTRACT This study shows the successful discrimination among different passion fruit samples
Montse Saura‐Cayuela   +6 more
wiley   +1 more source

Assessment of atmospheric corrosivity in coastal zones: Case study in port Lopez, Manabí, Ecuador

open access: yesCase Studies in Chemical and Environmental Engineering
This manuscript investigates the atmospheric corrosion of carbon steel in Puerto Lopez, a coastal region in Manabí Province, Ecuador. For the study, six outdoor exposure sites (OES) were strategically placed at different distances from the coast to ...
Juan Carlos Guerra-Mera   +4 more
doaj   +1 more source

ELABORACIÓN DE GALLETAS ENRIQUECIDAS CON BARRILETE NEGRO (Euthynnus lineatus): CARACTERÍZACION QUÍMICA, INSTRUMENTAL Y SENSORIAL

open access: yesEcosistemas y Recursos Agropecuarios, 2014
El objetivo de la presente investigación fue la catacterización química, instrumental y sensorial de ocho formulaciones de galletas enriquecidas con carne de barrilete negro (Euthynnus lineatus); la técnica de perfil  flash fue empleada por un panel ...
Fátima Karina Delgado -Vidal   +3 more
doaj   +1 more source

Evaluating endophyte‐rich leaves and leaf functional traits for protection of tropical trees against natural enemies

open access: yesFunctional Ecology, Volume 39, Issue 2, Page 371-389, February 2025.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plants use physical barriers and chemical compounds to defend themselves against natural enemies. For instance, tough leaves are considered to be better defended than soft leaves, part of a spectrum of defences defined by functional traits such as leaf chemistry ...
Bolívar Aponte Rolón   +3 more
wiley   +1 more source

Caracterización de biomasas lignocelulósicas y su procesamiento térmico: Estado y oportunidades en el Instituto Tecnológico de Costa Rica

open access: yesTecnología en Marcha, 2022
Las biomasas lignocelulósicas son materias primas con baja huella de carbono, útiles para la producción de energía, materiales y productos químicos, las cuales pueden provenir de diferentes fuentes, incluyendo actividades agroindustriales y plantaciones ...
Allen Puente-Urbina
doaj   +1 more source

La microfauna de los sondeos de ENUSA en la Depresión Intermedia (provincias de Cuenca y Guadalajara) [PDF]

open access: yes, 1992
En este trabajo se describen los resultados de la determinación paleontológica de restos de micromamíferos, provenientes del lavado de testigos de sondeos realizados por ENUSA, en los materiales cenozoicos de la Depresión Intermedia (provs.
Torres Pérez-Hidalgo, Trinidad José
core   +1 more source

Cliquepolitik: Multimodal online discourse coalitions on CRISPR‐Cas genome editing technology

open access: yesReview of Policy Research, Volume 42, Issue 1, Page 50-76, January 2025.
Abstract The influence of visualizations on decision‐making about controversial policy issues is increasingly recognized in the political and policy sciences. In this paper, we explore how combinations of visuals and text on Twitter (now X) lead to the formation of networks of actors sharing similar textual and visual framings about a policy issue in ...
Eduardo Rojas‐Padilla   +2 more
wiley   +1 more source

Preliminary chemical and petrographic results of the march-april "El Chichon" volcanics

open access: yesGeofísica Internacional, 1982
Se efectuaron análisis químicos y petrográficos de tres muestras de los productos de la erupción del volcán "El Chichón" (marzo-abril 1982). Los análisis químicos muestran que se trata de magma de composición andesítica con un alto contenido de gases. El
R. M. Prol Ledesma   +6 more
doaj   +1 more source

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