Results 11 to 20 of about 487,432 (309)

Toxicities and Cross-Resistance of Imidacloprid, Acetamiprid, Emamectin Benzoate, Spirotetramat, and Indoxacarb in Field Populations of Culex quinquefasciatus (Diptera: Culicidae)

open access: yesInsects, 2022
Culex quinquefasciatus is a major vector of several pathogens and is capable of breeding in various aquatic habitats. The extensive and injudicious use of synthetic chemicals against the mosquito species has led to the problem of insecticide resistance ...
Muhammad Kamran   +6 more
doaj   +1 more source

Toxicity of Methylcyclohexane and Its Effect on the Reproductive System in SD Rats

open access: yesSafety and Health at Work, 2011
Objectives: There is limited data regarding the toxicity of methylcyclohexane, despite its wide use in rubber adhesives, paint diluents, and cleansing agents.
Hyeon-Yeong Kim   +3 more
doaj   +1 more source

Peppermint essential oil as an anesthetic for and toxicity to juvenile silver catfish [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2019
: The objective of this work was to evaluate peppermint (Mentha piperita) essential oil toxicity to and potential as an anesthetic for juvenile silver catfish (Rhamdia quelen).
Diogo Bessa Neves Spanghero   +5 more
doaj   +1 more source

The dose makes the poison: have “field realistic” rates of exposure of bees to neonicotinoid insecticides been overestimated in laboratory studies? [PDF]

open access: yes, 2014
Recent laboratory based studies have demonstrated adverse sub-lethal effects of neonicotinoid insecticides on honey bees and bumble bees, and these studies have been influential in leading to a European Union moratorium on the use of three neonicotinoids,
BARON G L   +16 more
core   +1 more source

Acute toxicity of synyhetic resin effluent to African Catfish, Clarias gariepinus [BURCHELL, 1822]. [PDF]

open access: yes, 2012
Aquatic pollution as a field has gained a lot of attention over the decades majorly because of the vital role the aquatic environment plays in the human lifecycle.
Dahunsi, S. O., Oranusi, S. U.
core   +1 more source

Method of reliable determination of minimal lethal antibiotic concentrations [PDF]

open access: yesAntimicrobial Agents and Chemotherapy, 1980
The lack of a standardized, statistically reliable method for in vitro determinations of the minimal lethal or bactericidal concentrations of antibiotics has complicated analyses of isolates of Staphylococcus aureus which appear to be inhibited but not killed by the usual concentrations of cell wall-active antibiotics.
R D, Pearson   +3 more
openaire   +2 more sources

Caffeine. cognitive and physical performance enhancer or psychoactive drug? [PDF]

open access: yes, 2015
Caffeine use is increasing worldwide. The underlying motivations are mainly concentration and memory enhancement and physical performance improvement. Coffee and caffeine-containing products affect the cardiovascular system, with their positive inotropic
Aromatario, Mariarosaria   +3 more
core   +1 more source

Probit Analysis of Carbamate-Pesticide-Toxicity at Soil-Water Interface to N2-Fixing Cyanobacterium Cylindrospermum sp

open access: yesRice Science, 2015
Toxicity-data of two carbamate insecticides, carbaryl and carbofuran, and three fungicides, ziram, zineb and mancozeb with rice-field N2-fixing cyanobacterium Cylindrospermum sp., obtained by in vitro growth and at soil-water interface, were analyzed by ...
Rabindra N. Padhy, Shakti Rath
doaj   +1 more source

Ameliorating Effect of Chloride on Nitrite Toxicity to Freshwater Invertebrates with Different Physiology: a Comparative Study Between Amphipods and Planarians [PDF]

open access: yes, 2008
High nitrite concentrations in freshwater ecosystems may cause toxicity to aquatic animals. These living organisms can take nitrite up from water through their chloride cells, subsequently suffering oxidation of their respiratory pigments (hemoglobin ...
Alonso, A., Camargo, J.A.
core   +2 more sources

Bem1p contributes to secretory pathway polarization through a direct interaction with Exo70p. [PDF]

open access: yes, 2014
The exocyst serves to tether secretory vesicles to cortical sites specified by polarity determinants, in preparation for fusion with the plasma membrane.
Liu, Dongmei, Novick, Peter
core   +1 more source

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