Results 31 to 40 of about 252 (144)

Tracing Groundwater‐Surface Water Interactions in a Volcanic Maar Lake Using Stable Isotopes and 222Rn

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 129, Issue 12, December 2024.
Abstract Isotope hydrological studies to understand groundwater‐surface water interactions in tropical, high‐elevation catchments are limited. These interactions are important in controlling lake water residence time, aqueous biogeochemistry, and water availability for downstream communities and ecosystems. To better comprehend the complexity of spatio‐
Germain Esquivel‐Hernández   +8 more
wiley   +1 more source

Informe final de servicios realizados en el área de propagación del cultivo de Hule (Hevea brasiliensis), en finca “El Rosario Boy”C San Antonio Suchitepéquez, Suchitepéquez [PDF]

open access: yes, 2015
La práctica profesional supervisada, fue realizado en la unidad de práctica de la finca “El Rosario Boy”, ubicada en el municipio de San Antonio Suchitepéquez, del departamento de Suchitepéquez, dicha unidad cuenta con la explotación de hule (Hevea ...
Guzmán García, Aníbal Alexander
core  

FGF21 increases the sensitivity of hepatocellular carcinoma to sorafenib under hypoxia

open access: yesMalignancy Spectrum, Volume 1, Issue 2, Page 99-112, June 2024.
When combined with sorafenib (SORA), fibroblast growth factor 21 (FGF21) could increase the sensitivity of hepatoma cells to SORA and inhibit the growth and migration of hepatoma cells. FGF21 may increase the sensitivity of SORA to hepatocellular carcinoma (HCC) by enhancing phosphorylation of mothers against decapentaplegic homolog 3 through the ...
Ting Zhang   +11 more
wiley   +1 more source

On quantifying heterogeneous treatment effects with regression‐based individualized treatment rules: Loss function families and bounds on estimation error

open access: yesStat, Volume 13, Issue 2, June 2024.
Summary Heterogeneity in response to treatment is a pervasive problem in medicine. Many researchers have proposed individualized treatment rule methods for this problem, which personalize treatment recommendations based on an individual's recorded covariates.
Michael T. Gorczyca, Chaeryon Kang
wiley   +1 more source

Road Salt Legacies: Quantifying Fluxes of Chloride to Groundwater and Surface Water Across the Chicago Metropolitan Statistical Area

open access: yesWater Resources Research, Volume 60, Issue 2, February 2024.
Abstract Freshwater chloride concentrations have been increasing in North American surface waters for decades, largely driven by increases in the use of road salt, which is commonly applied as a deicer. In Chicago, thousands of tons of road salt are applied to roadways each winter, and increases in surface water chloride concentrations have been noted ...
K. J. Van Meter, E. Ceisel
wiley   +1 more source

10-year natural carbonation of concretes with limestone, flyash, volcanic ash, and slag and exposed to tropical climate in India

open access: yes
The data set includes the concrete properties and natural carbonation depths of 45 different concretes exposed to tropical climate in India. There are three sets of data. Set A contains information about the mix proportions, including the type of cement,
Hule, U (via Mendeley Data)
core   +2 more sources

"A huge block of rubber". A short story about the Guatemala Pavilion at the 1900 Paris Universal Exposition

open access: yes, 2022
By Alejandro Martínez, Universidad Nacional de La Plata While exploring the collections of Central American plants housed in the Herbarium of the Museum of Natural History in Paris, our attention was drawn to a sample belonging to the tree known as ...
Nathalie Richard
core   +1 more source

Informe final de servicios del cultivo de Hule (hevea brasiliensis) Finca Entre Rios, municipio de Cuyotenango, departamento de Suchitepéquez [PDF]

open access: yes, 2017
RESUMEN En Finca Entre Ríos ubicada en Cuyotenango, Suchitepéquez, durante el periodo de los meses de Agosto a Octubre se llevó a cabo la Práctica Profesional Supervisada en la cual se desarrollan los servicios planteados en el presente documento ...
Esteban Cifuentes, Percy Manuel
core  

Specialization and competitiveness of natural rubber (Hevea brasiliensis [Willd. ex A. Juss.] Müll. Arg.) production in Mexico

open access: yes, 2019
[ES] Introducción: La dinámica e interacción comercial entre países ha generado transformaciones en sus estructuras económicas, y un proceso de especialización productiva en el sector agropecuario. Objetivo: Analizar el comportamiento de la producción
Jonathan Fresnedo-Ramírez   +13 more
core   +1 more source

Situación de la gestión del mantenimiento de las fábricas procesadoras de hule natural técnicamente especificado en Guatemala, según la matriz de clase mundial

open access: yes, 2012
Realizar el diagnóstico de la situación de la gestión del mantenimiento de las ocho fábricas procesadoras de hule natural técnicamente especificado, que operan en Guatemala según la matriz de clase mundial, así determinar las iniciativas de clase mundial
Vásquez García, Jhonny Francisco
core  

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