Results 51 to 60 of about 503,392 (181)

Cuantificación de coliformes totales en estuario del río ranchería

Biotecnología en el Sector Agropecuario y Agroindustrial, 2017
La cuantificación de coliformes totales en el estuario del río Ranchería es un factor importante tanto para las actividades agrícolas como para la vida urbana.
Geomar Enrique Molina Bolivar, Iris Agustina Jiménez Pitre, Diofanor Acevedo Correa   +2 more
doaj   +1 more source

Mapping the density of giant trees in the Amazon

New Phytologist, Volume 249, Issue 1, Page 152-168, January 2026.
Summary Tall trees (height ≥ 60 m) are keystone elements of tropical forests, strongly influencing biodiversity, carbon storage, and ecosystem resilience. Yet, their density and spatial distribution remain poorly quantified, especially in remote Amazonian regions, limiting our understanding of their ecological roles and contribution to forest–climate ...
Robson Borges de Lima, Diego Armando Silva da Silva, Matheus Henrique Nunes, Paulo R. de Lima Bittencourt, Peter Groenendyk, Cinthia Pereira de Oliveira, Daniela Granato‐Souza, Rinaldo L. Caraciolo Ferreira, José A. Aleixo da Silva, Jesús Aguirre‐Gutiérrez, Toby Jackson, João R. de Matos Filho, Perseu da Silva Aparício, Joselane P. Gomes da Silva, José Julio de Toledo, Marcelino Carneiro Guedes, Danilo R. Alves de Almeida, Niro Higuchi, Fabien H. Wagner, Jean Pierre Ometto, Eric Bastos Görgens   +20 more
wiley   +1 more source

Managing Water Supply Infrastructure in Medium‐Sized Cities to Meet User Demands: A Case Study of Natal, Brazil

World Water Policy, Volume 11, Issue 4, Page 1000-1014, November 2025.
ABSTRACT The article investigates the management of water supply infrastructure in Natal, Brazil, analyzing the alignment between the utility's investments and user demands during the period from 2016 to 2019. Using data from the Customer Service Center (CAU) and official investment information, it was identified that approximately 67% of complaints ...
Loiane Tamara dos Santos Alves Romanato, Neilton Fidelis da Silva, Sheyla Varela Lucena, Leandro Andrei Beser de Deus   +3 more
wiley   +1 more source

Great minds map alike: Citizen and expert distribution models of schistosome snail hosts in rural west Uganda

Ecological Solutions and Evidence, Volume 6, Issue 4, October–December 2025.
Citizen scientists and an expert jointly monitor Biomphalaria snails (the intermediate host of Schistosoma mansoni) in rural areas of southwest Uganda, generating over 4500 georeferenced records. By comparing expert‐ and citizen‐based distribution models under perfect and imperfect detection, we demonstrate that site type and NDVI consistently ...
Noelia Valderrama‐Bhraunxs, Tine Huyse, Emiel van Loon, Anton Van Rompaey, Ronald Twongyirwe, Liesbet Jacobs   +5 more
wiley   +1 more source

Las estructuras de captación de agua mediante galerías con lumbreras en el Campo de Cartagena

Revista Murciana de Antropología, 2007
Se ha observado que hay sistemas de recogida, transporte y distribución de agua de acuíferos no muy profundos respecto a la superfi cie en zonas áridas y semiáridas del SE de la Península Ibérica.
J. Mª Gómez Espín, E. Gil Meseguer, R. Martínez Medina, J. A. López Fernández   +3 more
doaj  

El abastecimiento de agua en las ciudades del Mediterráneo

Arbor: Ciencia, Pensamiento y Cultura, 1999
En las ciudades costeras, como en las no costeras, una buena parte del agua captada se pierde en las redes de distribución; además, el usuario no es siempre consciente de la necesidad de ahorrar al máximo este recurso.
Antonio Pulido Bosch, Pablo A. Pulido Leboeuf   +1 more
doaj   +1 more source

Using Environmental DNA Sampling for Simultaneous Detection of Hosts and Their Pathogens: A Case Study With the Critically Endangered Frog Genus Atelopus

Animal Conservation, Volume 28, Issue 5, Page 663-674, October 2025.
Environmental DNA is a powerful tool for simultaneous detection of rare species and their pathogens. We confirmed the presence of Atelopus at multiple sampling locations and found that the concentration of the amphibian pathogen Bd in eDNA samples was correlated with stream characteristics and the pathogen load of the amphibian community.
Jamie Voyles, Corinne L. Richards‐Zawacki, Allison Q. Byrne, Angie Estrada, Roberto Ibáñez, Keely M. Rodriguez, Caren S. Goldberg   +6 more
wiley   +1 more source

Diseño de una metodología para estimar los consumos de la red de distribución de agua potable de Barquisimeto, Venezuela [PDF]

, 2002
En el presente trabajo se desarrolló una metodología para la estimación de consumos de una red de distribución de agua potable, cuando no se cuenta con equipos de medición instalados en la red para la cuantificación de los mismos. Para tal fin se analizó
Verruschi, Elisa, Alvarez, Asis, Vela, Antonio, González, Yris, Caravacas, Antonio   +4 more
core   +4 more sources

DISTRIBUCIÓN DE CAMPOS MAGNÉTICOS LOCALES EN FERROFLUIDOS DE BASE ACUOSA

Anales (Asociación Física Argentina), 2013
Se presenta un estudio de los espectros de Resonancia Magnética Nuclear de los protones y deuterios en dos ferrofluídos diferentes. Uno de ellos contiene partículas magnéticas surfactadas dispersadas en una mezcla de agua y agua deuterada. Las particulas
C. E. González, D. J. Puisol, A. M. Figueiredo Neto, M. E. Ramia   +3 more
doaj  

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

Conservation 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, Chen Li, Yi‐Hao Fang, Guo‐Peng Ren, Zhi‐Pang Huang, Yan‐Peng Li, Liang‐Wei Cui, Meng‐Ran Chu‐yuan, Colin A. Chapmman, Cyril C. Grueter, Jian Zhou, Wen‐Bo Yan, Xin Liu, Li‐Xiang Zhang, Rui‐An Tang, Ying‐Ping Tian, Fei Li, Ke‐Guo Hang, Peng‐Ying Li, Paul A. Garber, Rui‐Dong Wu, Wen Xiao   +21 more
wiley   +1 more source