Results 51 to 60 of about 4,468 (194)

Biomass production of tropical trees across space and time: The shifting roles of diameter growth and wood density

open access: yesJournal of Ecology, Volume 113, Issue 11, Page 3141-3158, November 2025.
Diameter growth is an important and good indicator of forest carbon production. However, size‐related changes in wood density, which are usually neglected, are critical for accurate short‐ and long‐term carbon assessments, especially in tropical humid sites.
Bruna Hornink   +18 more
wiley   +1 more source

Metodología de medición de la huella de carbono para edificaciones en Costa Rica y su aplicación en el módulo habitacional Trópika

open access: yesTecnología en Marcha, 2016
Se analizaron metodologías internacionales de medición de huella de carbono para productos, con el fin de identificar la que mejor se ajusta al sector de la construcción costarricense.
Silvia Solano-Quesada   +1 more
doaj   +1 more source

Effect of primate protection on threatened and endemic vertebrates, plants, ecosystem services, and future climate refugia

open access: yesConservation Biology, Volume 39, Issue 5, October 2025.
Abstract Primates, 69% of which are threatened with extinction, are the third most specious order of mammals. We used primates as model taxa to examine the umbrella effects of primates on ecosystem services and the protection of other vertebrates and seed plants in Yunnan Province, China.
Yin Yang   +21 more
wiley   +1 more source

Carbon and nitrogen release from cover crop roots is poorly predicted by their chemical composition

open access: yesAgronomy Journal, Volume 117, Issue 5, September/October 2025.
Abstract Root‐derived carbon (C) and nitrogen (N) release in relation to chemical composition has rarely been quantified in field studies. The objectives of this study were to evaluate C and N release from six summer cover crop roots and to correlate it with their chemical composition. Root decomposition and N release from velvet bean (Mucuna aterrima),
Douglas Adams Weiler   +7 more
wiley   +1 more source

Preparación de una molécula en tribloque conteniendo bis-azobenceno por transesterificación [PDF]

open access: yes, 2018
Universidad de Sevilla.
González González, Ismael Manuel
core  

NaHSO3 as a Key Component in Developing Enhanced Performance Electrolytes for All‐Iron Redox Flow Batteries

open access: yesBattery Energy, Volume 4, Issue 5, September 2025.
A novel electrolyte for all‐iron redox flow batteries has been proposed with NaHSO3 as a key component. Even in small amounts, it significantly increases the plating/stripping processes occurring in the negative half‐cell (limiting step). Thanks to the formation of a FeHSO3+ intermediate, which acts as a very effective catalyst for the metallic iron ...
Alejandro Concheso   +7 more
wiley   +1 more source

O lado saudável da carne vermelha. [PDF]

open access: yes, 2013
bitstream/item/89902/1/Proci-07.00260 ...
COLNAGO, L. A., FORATO, L. A.
core  

Nível de energia ultra-sônica para estudo da estabilidade de agregados de um Latossolo sob diferentes usos [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2002
O objetivo deste trabalho foi identificar o nível de energia ultra-sônica mais adequado para se detectar diferenças na estabilidade de agregados influenciada pelo uso do solo. Coletaram-se três repetições de amostras de agregados
Marcos Aurélio Carolino de Sá   +2 more
doaj   +1 more source

Validación del test del aliento con carbono 13 para el diagnóstico de Helicobacter pylori

open access: yes, 2020
Introducción: La infección por H. pylori tiene alta prevalencia a nivel mundial y predispone al desarrollo de múltiples enfermedades, de ahí su importancia para una detección precoz. El Test del aliento con Carbono 13 es un método no invasivo propuesto para el diagnóstico inicial en menores de 45 años sin factores de riesgo y para seguimiento del ...
Bernui Vigo, Grazia María   +2 more
openaire   +1 more source

Wood density variation across an Andes‐to‐Amazon elevational gradient

open access: yesJournal of Ecology, Volume 113, Issue 9, Page 2370-2385, September 2025.
We study how wood density varies along a 3500‐m elevational gradient, spanning from the Andean tree line to the Amazon basin. Our results reveal that wood density decreases from low to mid‐elevations, then increases toward the tree line. These patterns underscore the influence of species composition, life forms such as tree ferns, and local ...
William Farfan‐Rios   +17 more
wiley   +1 more source

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