Results 51 to 60 of about 75,640 (234)

Temporal factors and habitats drive the variation of microbial distributions and co-occurrence patterns in the Pearl River Estuary

BMC Microbiology
Background Estuaries are dynamic and complicated aquatic ecosystems, where both abiotic and biotic factors heavily vary across seasons and among habitats. However, the distributions and co-occurrence patterns of microorganisms in estuarine ecosystems are
Changyu Zhu, Cuiyi Wang, Jianlin Han, Zijing Quan, Jinghan Zhang, Xuan Lei, Ruixin Zhang, Zhenzhen Yi   +7 more
doaj   +1 more source

Could the fluoride-tolerant species Panicum maximum replace sensitive plants in fluoride biomonitoring?

Ecological Indicators, 2021
Fluoride (F) is the most phytotoxic atmospheric pollutant. The use of plants for passive or active biomonitoring has been a common strategy to detect abnormal atmospheric F concentrations.
Bruno Francisco Sant'Anna-Santos, Larisse de Freitas-Silva, Aristéa Alves Azevedo, Marcelo Pedrosa Gomes   +3 more
doaj   +1 more source

Conclusions of the French Food Safety Agency on the toxicity of bisphenol A [PDF]

, 2011
Since more than 10 years, risk assessment of bisphenol A (BPA) is debated at the international level. In 2008, the U.S. National Toxicology Program (NTP) expressed some concern for adverse effects, at current level of exposure to BPA, on developmental ...
Arnich, Nathalie, Canivenc-Lavier, Marie-Chantal, Coffigny, Hervé, Cravedi, Jean-Pierre, Grob, Konrad, Kolf-Clauw, Martine, Macherey, Anne-Christine, Masset, Dominique, Maximilien, Rémi, Narbonne, Jean-François, Nesslany, Fabrice, Stadler, Jeanne, Tulliez, Jacques   +12 more
core   +2 more sources

Complex evolutionary patterns within the tubulin gene family of ciliates, unicellular eukaryotes with diverse microtubular structures

BMC Biology
Background Tubulins are major components of the eukaryotic cytoskeletons that are crucial in many cellular processes. Ciliated protists comprise one of the oldest eukaryotic lineages possessing cilia over their cell surface and assembling many diverse ...
Hua Su, Tingting Hao, Minjie Yu, Wuyu Zhou, Lei Wu, Yalan Sheng, Zhenzhen Yi   +6 more
doaj   +1 more source

Leveraging Epidemiology to Improve Risk Assessment. [PDF]

, 2011
The field of environmental public health is at an important crossroad. Our current biomonitoring efforts document widespread exposure to a host of chemicals for which toxicity information is lacking.
Burke, Thomas A, Fox, Mary A, Nachman, Keeve E, Rodricks, Joseph V, Sheehan, Mary C, Woodruff, Tracey J   +5 more
core  

Reference intervals for urinary cotinine levels and the influence of sampling time and other predictors on its excretion among italian schoolchildren [PDF]

, 2018
(1) Background: Environmental Tobacco Smoke (ETS) exposure remains a public health problem worldwide. The aims are to establish urinary (u-) cotinine reference values for healthy Italian children, to evaluate the role of the sampling time and of other ...
Andreoli, Roberta, Avino, Pasquale, Manigrasso, Maurizio, Mutti, Antonio, Protano, Carmela, Vitali, Matteo   +5 more
core   +2 more sources

Severity of effect considerations regarding the use of mutation as a toxicological endpoint for risk assessment: A report from the 8th International Workshop on Genotoxicity Testing (IWGT)

Environmental and Molecular Mutagenesis, EarlyView.
Abstract Exposure levels without appreciable human health risk may be determined by dividing a point of departure on a dose–response curve (e.g., benchmark dose) by a composite adjustment factor (AF). An “effect severity” AF (ESAF) is employed in some regulatory contexts.
Barbara L. Parsons, Marc A. Beal, Kerry L. Dearfield, George R. Douglas, Min Gi, B. Bhaskar Gollapudi, Robert H. Heflich, Katsuyoshi Horibata, Michelle Kenyon, Alexandra S. Long, David P. Lovell, Anthony M. Lynch, Meagan B. Myers, Stefan Pfuhler, Alisa Vespa, Andreas Zeller, George E. Johnson, Paul A. White   +17 more
wiley   +1 more source

Alteration of the Intestinal Bacterial Community in Rainbow Trout (Oncorhynchus mykiss): The Role of Animal, Plant, and Microbial Diets

Microbiology Research
Intestinal bacterial community in rainbow trout (Oncorhynchus mykiss) is increasingly recognized as important for aquaculture and fish health. This review summarizes the current knowledge on how various feed components, including animal- and plant ...
Aleksandra S. Chervochkina, Nadezhda O. Pastukhova, Andrey S. Aksenov   +2 more
doaj   +1 more source

A review on freshwater biomonitoring with benthic invertebrates in Ethiopia

Environmental and Sustainability Indicators, 2022
This paper reviews freshwater biomonitoring studies conducted in Ethiopia using benthic invertebrates. It encompasses the sampling tools, protocols, indices and taxonomic resolutions that have been used by researchers to assess the status of the ...
Amare Mezgebu
doaj   +1 more source

The micronucleus assay in radiation accidents [PDF]

, 2009
The cytokinesis-block micronucleus assay in peripheral blood lymphocytes is a standardised and validated technique for biodosimetry. Automated scoring of micronuclei allows large scale applications as in population triage in case of radiation accidents ...
Thierens, Hubert, Vral, Anne
core   +1 more source