Results 41 to 50 of about 777,176 (211)

Experimental evolution reveals high insecticide tolerance in Daphnia inhabiting farmland ponds [PDF]

open access: yes, 2015
Exposure of nontarget populations to agricultural chemicals is an important aspect of global change. We quantified the capacity of natural Daphnia magna populations to locally adapt to insecticide exposure through a selection experiment involving ...
Agra   +36 more
core   +2 more sources

The Effect of Natural Dissolved Organic Carbon on the Acute Toxicity of Copper to Larval Freshwater Mussels (\u3cem\u3eGlochidia\u3c/em\u3e) [PDF]

open access: yes, 2010
The present study examined the effect of dissolved organic carbon (DOC), both added and inherent, on Cu toxicity in glochidia, the larvae of freshwater mussels.
Ackerman, Josef D.   +4 more
core   +1 more source

Characteristics of Methadone Intoxicated Children Presenting to Emergency Department; a Cross Sectional Study

open access: yesArchives of Academic Emergency Medicine, 2017
Introduction: Each year a large number of patients present to emergency departments (EDs) following accidental or intentional poisoning with methadone.
Parvin Kashani   +5 more
doaj   +1 more source

Influence of molecular structure on the antimicrobial function of phenylenevinylene conjugated oligoelectrolytes. [PDF]

open access: yes, 2016
Conjugated oligoelectrolytes (COEs) with phenylenevinylene (PV) repeat units are known to spontaneously intercalate into cell membranes. Twelve COEs, including seven structures reported here for the first time, were investigated for the relationship ...
Bazan, Guillermo C   +5 more
core   +2 more sources

The ecological impact of different mechanisms of chronic sub-lethal toxicity on feeding and respiratory physiology [PDF]

open access: yes, 1994
Sub-lethal toxicity tests, such as the scope-for-growth test, reveal simple relationships between measures of contaminant concentration and effect on respiratory and feeding physiology.
Willows, R.
core  

Organoid-based platforms for investigating microplastic-induced human organ toxicity [PDF]

open access: yesOrganoid
Micro- and nano-plastics (MNPs) have emerged as widespread environmental contaminants, raising increasing concerns regarding their potential adverse effects on human health.
Yeongseon Cho, Hong Nam Kim
doaj   +1 more source

Malondialdehyde - a potential marker of nanoparticle toxicity in an aquatic environment

open access: yesOne Health & Risk Management, 2020
Introduction. As a result of increased production and spread in the environment, nanoparticles can pose a significant risk to public health. To date, the toxicity data of nanoparticles collected, using traditional models and methods, are contradictory ...
Liliana CEPOI   +4 more
doaj   +2 more sources

In Vitro Mutagenic and Genotoxic Assessment of a Mixture of the Cyanotoxins Microcystin-LR and Cylindrospermopsin [PDF]

open access: yes, 2019
The co-occurrence of various cyanobacterial toxins can potentially induce toxic effects different than those observed for single cyanotoxins, as interaction phenomena cannot be discarded. Moreover, mixtures are a more probable exposure scenario. However,
Cameán Fernández, Ana María   +4 more
core   +1 more source

Evaluation of toxicity from leachate lagoons sediments, using the toxicity leaching procedure - TCLP and acute toxicity tests

open access: yesDyna, 2019
Landfills have been the most used alternative for final municipal solid wastes disposal, however, this system is the responsible of contamination problems associated with the generation of leachates, sediments and toxic gasses emissions.
Patricia Torres Lozada   +2 more
doaj   +1 more source

Safety Assessment of a New Strain of Lactobacillus pentosus (IBRC=11143) as a Candidate Probiotic

open access: yesPharmaceutical and Biomedical Research, 2020
Background: It is believed that the consumption of an adequate amount of live lactic acid bacteria (as probiotic) may improve the health of the host. Many strains of lactic acid bacteria are generally considered to be safe.
Saba Bahrehvar   +3 more
doaj  

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