Results 11 to 20 of about 58,709,603 (165)

Estrutura fitossociológica, estoques de volume, biomassa, carbono e dióxido de carbono em Floresta Estacional Semidecidual [PDF]

Revista Árvore, 2012
O objetivo deste estudo foi analisar o estoque e o crescimento em volume, biomassa, carbono e dióxido de carbono em duas áreas de Floresta Estacional Semidecidual Submontana em estágios médio e médio/avançado de sucessão da vegetação secundária.
Agostinho Lopes de Souza, Aline Boina, Carlos Pedro Boechat Soares, Benedito Rocha Vital, Ricardo de Oliveira Gaspar, Jacinto Moreira de Lana   +5 more
doaj   +2 more sources

DIÓXIDO DE CARBONO Y CLIMA EN EL LITORAL MEDITERRÁNEO

Investigaciones Geográficas, 1996
El dióxido de carbono, principal protagonista del efecto invernadero, ha incrementa- do notablemente su concentración desde el inicio de la Revolución Industrial.
J. Quereda Sala, E. Montón Chiva
doaj   +2 more sources

Microstructural examination of carbonated 3D‐printed concrete

Journal of Microscopy, Volume 286, Issue 2, Page 141-147, May 2022., 2022
Abstract The recent interest in 3D printing with concrete has generated great interest on how inhomogeneities arise and affect performance parameters, in particular strength and durability. With respect to durability, of particular interest is how 3D‐printed layer interfaces can impact transport of species of interest, such as moisture, chlorides or ...
Asel Maria Aguilar Sanchez, Timothy Wangler, Matteo Stefanoni, Ueli Angst   +3 more
wiley   +1 more source

Physiological performance and inflammatory markers as indicators of complications after oesophageal cancer surgery

BJS Open, Volume 4, Issue 5, Page 840-846, October 2020., 2020
C‐reactive protein concentration and peak oxygen uptake are collective independent risk factors that can account for over half of major morbidity following oesophagectomy for oesophageal cancer. A composite risk score, the Combined Inflammatory and Physiology Score (CIPS) (range 0–2), predicted major morbidity (17·9 per cent in patients with a CIPS of ...
A. G. M. T. Powell, C. Eley, T. Abdelrahman, A. H. Coxon, C. Chin, I. Appadurai, R. Davies, D. M. Bailey, W. G. Lewis   +8 more
wiley   +1 more source

Randomized clinical trial of the effect of intraoperative humidified carbon dioxide insufflation in open laparotomy for colorectal resection

BJS Open, Volume 4, Issue 1, Page 45-58, February 2020., 2020
Open abdominal surgery leads to peritoneal desiccation and damage, resulting in inflammation. This peritoneal damage can be mitigated by the use of warmed, humidified carbon dioxide. Peritoneal inflammation and open surgery Background Animal studies have shown that peritoneal injury can be minimized by insufflating the abdominal cavity with warm ...
J. Y. Cheong, B. Chami, G. M. Fong, X. S. Wang, A. Keshava, C. J. Young, P. Witting   +6 more
wiley   +1 more source

Analizador básico de gases para emisiones vehiculares

Revista de Iniciación Científica, 2021
En la presente investigación se desarrolló el prototipo de un analizador básico de gases para emisiones vehiculares propuesto por Johan Julián Molina M., et al.
Samantha Ortega, Carlos Valdés, Chris Iglesias, Celine Rodríguez, Victoria Serrano   +4 more
doaj   +1 more source

Taxing Flaring and the Politics of State Methane Release Policy

Review of Policy Research, Volume 37, Issue 1, Page 6-38, January 2020., 2020
Abstract Methane is a potent greenhouse gas but it has received strikingly less social science attention than carbon dioxide in examining climate policy options. This article explores American state policy toward methane that is not captured and instead released into the atmosphere during oil and gas production.
Barry Rabe, Claire Kaliban, Isabel Englehart   +2 more
wiley   +1 more source

HUELLA DE CARBONO, UTILIZANDO LA NORMA ISO-14064:1, EN LA MAESTRÍA DE QUÍMICA AMBIENTAL, ANTES Y DURANTE LA PANDEMIA POR COVID-19.

Revista Bases de la Ciencia, 2023
Las actividades antropogénicas en universidades latinoamericanas y su impacto directo sobre el calentamiento global son un desafío para la gestión medioambiental de los campus universitarios.
Larissa Sacoto Palacios, Cesar Zambrano Torres, Carlos Rivas Cobo   +2 more
doaj   +1 more source

Estrutura produtiva do estado do Paraná e pegada de carbono em 2013

Economia & Região, 2022
A identificação de setores-chave para o desenvolvimento regional sustentável é a motivação do estudo. O objetivo foi utilizar o sistema inter-regional de insumo-produto Paraná-Restante do Brasil para estimar indicadores econômicos e ambientais para ...
Patrícia Pompermayer Sesso, Irene Domenes Zapparoli, Umberto Antonio Sesso Filho, Paulo Rogério Alves Brene, Ronaldo Raemy Rangel   +4 more
doaj   +1 more source

Purificación de biogás usando Cianobacterias

Investigación e Innovación en Ingenierías, 2019
Objetivo: Investigar técnicas biológicas para purificar biogás. Metodología: El biogás con bajo contenido de dióxido de carbono fue burbujeado en dos soluciones acuosas que contenían cianobacterias filamentosas de diferentes cepas de Leptolyngbya sp ...
José Leiton, Laura Brenes , Lorena Uribe-Lorío   +2 more
doaj   +1 more source