Results 91 to 100 of about 2,029 (256)

Impacto económico y calidad microbiológica de aguas tratadas con ozono

open access: yesRevista CENIC Ciencias Químicas, 2007
Los objetivos del trabajo consistieron en evaluar el impacto econó- mico y la calidad microbiológica de aguas tratadas con ozono, tecnología que ha sido instalada en embotelladoras de agua, en instalaciones para la cría de animales libres de gérmenes ...
Mayra Bataller Venta   +3 more
doaj  

Alternativas a los animales de laboratorio en docencia

open access: yes, 2014
En este artículo se hace una revisión sobre la utilización de animales y de métodos alternativos en docencia y se constata que todavía se siguen utilizando animales, a pesar de los avances tecnológicos que permiten cada vez métodos mejores y más efectivos para reemplazar a los animales en las prácticas docentes. Así mismo se analizan las ventajas y las
openaire   +1 more source

Business Model and Sustainable Development Goals for an Innovative Agricultural Waste Management: Distributed Biogas Production

open access: yesSustainable Development, EarlyView.
ABSTRACT Technological progress and population growth have increased global pork demand; leading to a rise of methane emission from pig farming, a key contributor to climate change. Anaerobic digestion offers a sustainable solution by converting manure into biogas.
María‐Pilar Martínez‐Hernando   +5 more
wiley   +1 more source

Organic and Inorganic Pollutants, Oxidative Stress Biomarkers, and Electrophoretic Protein Profiles in an Endangered Thresher Shark (Alopias vulpinus) From Southeastern Brazil: A Case Study

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT A comprehensive screening of different environmental contaminants (total metals, thermostable metal fractions associated with detoxification, and persistent organic pollutants) was conducted in an endangered common thresher shark (Alopias vulpinus ) individual incidentally captured in southeastern Brazil.
Sidney Fernandes Sales Junior   +10 more
wiley   +1 more source

Revisiting the Association of Pesticide Exposure and Parkinson's Disease: Systematic Review and Meta‐Analysis

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The association between pesticide exposure and Parkinson's disease (PD) is substantial, but heterogeneity in methodology and lack of categorization according to the type of exposure and pesticide classes in previous meta‐analyses impair the interpretation of data. This study aims to update evidence of the association between pesticide exposure
Pedro Henrique Passos da Silva   +6 more
wiley   +1 more source

Desarrollo de lesiones displásicas y neoplásicas linguales en animales de laboratorio

open access: yes, 2015
Fil: Zavala, Walther David. Universidad Nacional de Cuyo.
Zavala, Walther David   +1 more
openaire   +1 more source

Assessment of Oxidative Stress, Vitellogenin, and Human Health Risks Derived From Nile Tilapia Exposed to Metals and Metalloids in Southeastern Brazil

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Urban coastal lagoons are highly vulnerable ecosystems increasingly affected by metal contamination, as well as multiple anthropogenic stressors. This study evaluated ecotoxicological and human health risks associated with chronic metal exposure in Nile tilapia (Oreochromis niloticus) from an anthropogenically impacted lagoon in southeastern ...
Julia Araújo Alves   +8 more
wiley   +1 more source

Mortalidad en crías de Aotus sp. (Primates: Cebidae) en cautiverio: una limitante para estudios biomédicos con modelos animales

open access: yesRevista Peruana de Medicina Experimental y Salud Pública, 2006
Aotus es un primate neotropical nocturno usado como modelo experimental en investigaciones biomédicas. En 1979 el Centro de Reproducción y Conservación de Primates del Proyecto Peruano de Primatologia (CRCP-PPP) Iquitos- Perú, inició la cría en ...
Nofre Sánchez   +3 more
doaj  

Antimicrobial Residues in a Key Cerrado River: Distribution, Persistence, and Effects on Zebrafish Embryo‐Larval Development

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT The current study aimed to quantify the antimicrobials amoxicillin (AMX), cefazolin (CFZ), chloramphenicol (CHL), metronidazole (MTZ), and sulfamethoxazole (SX) in effluents and surface water of an important Cerrado river, calculate their half‐lives, and analyze their ecotoxicity following single and combined exposures.
Náthala Maria Simão   +12 more
wiley   +1 more source

Métodos usados en Colombia para el estudio del virus de la fiebre amarilla

open access: yesRevista de la Facultad de Medicina, 1946
El presente artículo tiene por objeto describir las técnicas empleadas en el laboratorio de Villavicencio (Meta, Colombia) para el estudio y mantenimiento del virus de la fiebre amarilla. Las características de dicho virus son mencionadas brevemente, Se
Manuel Roca García, Marston Bates
doaj  

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