Results 131 to 140 of about 95,173 (266)

Biochemical Responses of Anopheles spp. Larvae to a Novel Brazilian BR101 Bacillus thuringiensis var. israelensis Formulation: Oxidative Stress, Detoxification Enzymes, and Safety for Nontarget Notonectidae and Gerridae Aquatic Insects

open access: yesChemistry &Biodiversity, Volume 23, Issue 2, February 2026.
Bti BR101 exhibits strong larvicidal activity against Anopheles larvae spp., with dose‐dependent mortality and LC50 of 3.13 µg/mL. Bti increases ROS, lipid and protein oxidation, and activates antioxidant enzymes (SOD, CAT, GPx) and detoxification pathways (MFO and esterases), indicating moderate oxidative stress.
Izabel Cristina de Oliveira Bentes   +14 more
wiley   +1 more source

Phenolic Profile and Biological Evaluation of Salvia ceratophylloides Ard.: A Novel Source of Rosmarinic Acid

open access: yesChemistry &Biodiversity, Volume 23, Issue 2, February 2026.
Among the various extraction techniques investigated, the methanolic ultrasound‐assisted extract (MGME‐UAE) of Micromeria graeca L exhibited the strongest bactericidal effect, selectively inhibiting Proteus mirabilis (inhibition zone 12.7 ± 0.6 mm; MIC = 6.25 mg/mL).
Douaa Bekkai   +6 more
wiley   +1 more source

The effects of water quality on freshwater fish populations - final report [PDF]

open access: yes, 1990
There is a need to determine quantitative relationships between fishery status and water quality in order to make informed judgements concerning fishery health and the setting of environmental quality standards for fishery protection.
Gulson, J., Mainstone, C.P.
core  

Ricinus Communis: Nutritional Importance, Health Benefits, and Industrial Applications

open access: yeseFood, Volume 7, Issue 1, February 2026.
The current paper summarizes the nutritional composition, phytochemistry, health benefits, safety studies, and applications of castor beans and their oil. Moreover, the diverse bioactive compounds, including saponins, emodins, terpenoids, anthraquinones, flavonoids, steroids, and alkaloids, exhibit therapeutic properties such as antioxidant, anticancer,
Hassan Raza   +13 more
wiley   +1 more source

LETHAL EFFECTS OF 2,2-DICHLOROVINYL DIMETHYL PHOSPHATE (DDVP) ON FINGERLING AND JUVENILE Clarias gariepinus (BURCHELL, 1822) [PDF]

open access: yesCroatian Journal of Fisheries, 2013
This study investigated the lethal toxicity of 2,2-dichlorovinyl dimethyl phosphate (DDVP) on African mud catfish, Clarias gariepinus fingerlings (mean weight 7.02 ± 2.56 g) and juveniles (mean weight 13.54 ± 1.46 g) in a static renewable bioassay. DDVP,
Isaac Tunde Omoniyi   +2 more
doaj  

Bioavailability of pesticides in freshwater sediments [PDF]

open access: yes, 2007
In ecological risk assessment standardized sediment toxicity tests are used to predict the hazard of chemicals for sediment-living organisms. Feeding is a prerequisite in these long-term tests to avoid starvation of test organisms.
Åkerblom, Nina
core  

Salvia coccinea and Apigenin: A Natural Treasure of Lamiaceae in Pharmacological Innovation

open access: yesFood Science &Nutrition, Volume 14, Issue 2, February 2026.
Salvia coccinea is rich in bioactive phytochemicals, notably the flavonoid apigenin, offering strong antioxidant, anti‐inflammatory, and antimicrobial effects. By modulating inflammatory and oxidative pathways, it shows potential for managing chronic diseases.
Muhammad Usman Khalid   +7 more
wiley   +1 more source

Larvicidal activity of Hypoestes forskaolii (Vahl) R. Br root extracts against Anopheles gambiae Giless.s, Aedes aegypti L, and Culex quinquefasciatus Say

open access: yesJournal of Experimental Pharmacology, 2019
Albert J Sillo, Winisia E Makirita, Hulda Swai, Musa ChachaSchool of Life Sciences and Bio-Engineering, Nelson Mandela African Institution of Science and Technology, Arusha, TanzaniaAim: This study aimed to evaluate larvicidal activity of Hypoestes ...
Sillo AJ, Makirita WE, Swai H, Chacha M
doaj  

Effects of Chronic Waterborne Nickle Exposure on Two Successive Generations of \u3cem\u3eDaphnia Magna\u3c/em\u3e [PDF]

open access: yes, 2004
In a 21-d chronic toxicity test in which an F0 generation of Daphnia magna were exposed to waterborne Ni, the noobservable-effect concentration (for survival, reproduction, and growth) was 42 μg Ni L-1, or 58% of the measured 21-d median lethal ...
McGeer, James C.   +2 more
core   +1 more source

Conjugative Transfer of Disease‐Encoding Plasmid Variants in Serratia spp. Alter Production of Enzymes and Virulence Properties

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 1, February 2026.
Analysis of plasmid transconjugants relative to plasmid‐free and plasmid‐carrying Serratia spp. demonstrates erratic disease phenotypes and reduced fitness. Transconjugants also show reduced ability to degrade substrates associated with virulence, supported by transcriptomic data.
Amy L. Vaughan   +3 more
wiley   +1 more source

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