Results 11 to 20 of about 390,215 (290)

Influence of seasonality on macroinvertebrate diversity associated with the aquatic fern Salvinia biloba Raddi

EntomoBrasilis, 2020
. The genus Salvinia is composed of fast-growing floating ferns, capable of surviving in different environmental conditions. Some authors suggest that the relationships between this genus and macroinvertebrates may serve as water quality indicators.
Rennan Leite Martins Coutinho, Isabella Rodrigues Lancellotti, Arthur Ribeiro Flores, Marcelo Guerra Santos   +3 more
doaj   +1 more source

Microbial Contamination of Dental Unit Waterlines and Potential Risk of Infection: A Narrative Review

Pathogens, 2020
Several studies have revealed that dental unit waterlines (DUWLs) are often contaminated by large numbers of various micro-organisms (bacteria, fungi, protozoa, viruses).
Anna Maria Spagnolo, Marina Sartini, Maria Luisa Cristina   +2 more
doaj   +1 more source

Occurrence of coliforms in water samples of the Perequê and Penedo Rivers in Paraná, Brazil

Brazilian Archives of Biology and Technology, 1998
The Perequê and Penedo rivers flow through the plains of Praia de Leste and fall into the sea between the municipalities of Pontal do Sul and Ponta do Poço.
Ilma Hiroko Higuti, Ivone Rodrigues Macena, Setuko Masunari, Mario de Oliveira Branco Filho, Marita Maciel Moreira Blaskowiski, Aguinaldo José do Nascimento   +5 more
doaj   +1 more source

Aeromonas Isolates from Human Diarrheic Stool and Groundwater Compared by Pulsed-Field Gel Electrophoresis

Emerging Infectious Diseases, 2003
Gastrointestinal infections of Aeromonas species are generally considered waterborne; for this reason, Aeromonas hydrophila has been placed on the United States Environmental Protection Agency Contaminant Candidate List of emerging pathogens in drinking ...
Mark A. Borchardt, Mary E. Stemper, Jon H. Standridge   +2 more
doaj   +1 more source

Disinfectant, Soap or Probiotic Cleaning? Surface Microbiome Diversity and Biofilm Competitive Exclusion

Microorganisms, 2020
This study extends probiotic cleaning research to a built environment. Through an eight-month cleaning trial, we compared the effect of three cleaning products (disinfectant, plain soap, and a probiotic cleaner containing a patented Bacillus spore ...
Wendy Stone, Janke Tolmay, Keira Tucker, Gideon M. Wolfaardt   +3 more
doaj   +1 more source

Recuento y determinación de viabilidad de giardia spp. y Cryptosporidium spp. en aguas potables y residuales en la cuenca alta del rio Bogotá.

Biomédica: revista del Instituto Nacional de Salud, 2005
Introducción. La transmisión de enfermedades de origen hídrico está relacionada con la contaminación de origen fecal en aguas residuales y potables. Estas enfermedades son causadas por la presencia de bacterias, virus y parásitos, los cuales generan ...
Marlén Andrea Alarcón, Milena Beltrán, Martha Liliana Cárdenas, María Claudia Campos   +3 more
doaj   +1 more source

Methylacidimicrobium thermophilum AP8, a Novel Methane- and Hydrogen-Oxidizing Bacterium Isolated From Volcanic Soil on Pantelleria Island, Italy

Frontiers in Microbiology, 2021
The Favara Grande is a geothermal area located on Pantelleria Island, Italy. The area is characterized high temperatures in the top layer of the soil (60°C), low pH (3–5) and hydrothermal gas emissions mainly composed of carbon dioxide (CO2), methane ...
Nunzia Picone, Pieter Blom, Anna J. Wallenius, Carmen Hogendoorn, Rob Mesman, Geert Cremers, Antonina L. Gagliano, Walter D’Alessandro, Paola Quatrini, Mike S. M. Jetten, Arjan Pol, Huub J. M. Op den Camp   +11 more
doaj   +1 more source

Assessment of the Microbiological Quality of Caspian Seawater and the Role of Physicochemical Factors on Microbial Load

Journal of Environmental Health and Sustainable Development, 2020
Introduction: Analyzing the health risk associated with the microbial contamination of seawater is necessary to ensure that there is not any threat to human or environment.
Ali Shahryari, Hassan Safari, Bagher pahlavanzade   +2 more
doaj  

Evaluation of activities aimed at preventing microbiological risks in dental practice

Medycyna Pracy, 2013
Background: Microbiological contamination of water in dental unit waterlines (DUWL) creates a risk of cross-infections, and is a source of biological risk factors in the work environment of a dentist.
Jolanta Szymańska, Jolanta Sitkowska
doaj   +1 more source

Drinking Water Microbiology [PDF]

, 2015
Every year, on a global basis, billions of cases of illness result from ingestion of microorganisms in drinking water. The majority of these illnesses are caused by fecal contamination, resulting in diarrhea. In places where access to medical care is not readily available, diarrhea can lead to death from dehydration; unfortunately, 1.5 million people ...
openaire   +1 more source