Results 81 to 90 of about 39,384 (212)

Purification and Biochemical Properties of Carboxylesterase from Saga Seeds (Adenanthera pavonina) [PDF]

Journal of Stress Physiology & Biochemistry, 2021
Carboxyl esterase (E.C.No.3.1.1.1) was partially purified from Adenanthera pavonina (Saga) using ammonium sulfate fractionation (0-60%) and DEAE (diethyl aminoethyl) ion exchange chromatography, the purified enzyme was characterized.
Shafia Hoor F. , Nagesh Babu R.
doaj  

Analysis of the Detection of Organophosphate Pesticides in Aqueous Solutions Using Hydrogen-Bond Acidic Coating on SH-SAW Devices [PDF]

, 2012
The work presented in this paper focuses on the synthesis and characterization of a hybrid organic/inorganic chemically sensitive layer for rapid detection and analysis of OPs in aqueous solutions using SH-SAW devices.
Josse, Fabien, PhD, Mensah-Brown, Arnold Kweku, Mlambo, Darlington, Schneider, Susan C., PhD   +3 more
core   +1 more source

Outcome of secondary root canal treatment: a systematic review of the literature.

, 2008
UNLABELLED: AIMS (I): To investigate the effects of study characteristics on the reported success rates of secondary root canal treatment (2 degrees RCT or root canal retreatment); and (ii) to investigate the effects of clinical factors on the success of
Gulabivala, K, Mann, V, Ng, Y-L
core   +1 more source

Long‐term impact of exposure to Royal Guard, a pyriproxyfen‐based bed net, on pyrethroid‐resistant malaria vectors from Cameroon using DNA‐based metabolic resistance markers

Pest Management Science, Volume 81, Issue 4, Page 2165-2180, April 2025.
We used recently detected P450 DNA‐based markers of pyrethroid resistance in both Anopheles funestus and Anopheles gambiae to demonstrate that although pyrethroid‐resistant mosquitoes have higher ability to survive and live longer after exposure to Royal Guard, this net significantly affects their lifespan, blood feeding ability and interestingly ...
Emilie S Ngongang‐Yipmo, Magellan Tchouakui, Benjamin D Menze, Riccado F Tiomela, Derrick Fofie, Vanessa B Ngannang‐Fezeu, Jean L Mugenzi, Flobert Njiokou, Charles S Wondji   +8 more
wiley   +1 more source

Crystal structure and catalytic activity of tetrakis(μ2-ethyl 2,6-di-tert-butyl-4-methylphenyl phosphato-κ2O:O′)bis(ethyl 2,6-di-tert-butyl-4-methylphenyl phosphato-κ2O,O′)dilutetium n-heptane disolvate

Acta Crystallographica Section E: Crystallographic Communications, 2018
The title complex, [Lu2(C17H28O4P)6]·2C7H16, was formed in the reaction between potassium 2,6-di-tert-butyl-4-methylphenyl ethyl phosphate, [K(2,6-tBu2-4-MeC6H2-O)(EtO)PO2], and LuCl3(H2O)6 in water, followed by vacuum drying and recrystallization from ...
Mikhail E. Minyaev, Alexander N. Tavtorkin, Sof'ya A. Korchagina, Ilya E. Nifant'ev, Andrei V. Churakov   +4 more
doaj   +1 more source

The effects of methyl parathion on the colony dynamics of Apis mellifera : a thesis submitted in partial fulfilment of the requirements for the degree of Master of Science in Ecology at Massey University, Palmerston North, New Zealand [PDF]

, 2000
The detrimental effects of pesticides to honey bee colonies were assessed using a combination of electronic and manual sampling techniques. Initial experiments determined that electronic bee counters could be used to identify and monitor toxic events ...
Taylor, Michelle Anne
core  

Toxicity of Four Common Environmental Chemicals Across Caenorhabditis elegans Life Stages Supporting the One Health Concept

Environmental Toxicology, EarlyView.
ABSTRACT Pesticides and pharmaceuticals are among the most common chemical groups in waterbodies and soils, and their universal distribution raises concerns about potential adverse effects on nontarget organisms and humans. Reproductive output disruption is of particular concern, as it transposes effects from the individual to the next generations at ...
Fábio Campos, Maria D. Pavlaki, Amadeu M. V. M. Soares, Susana Loureiro   +3 more
wiley   +1 more source

Agricultural Fungicide Mancozeb in Leaf Litter Enhances Survival and Growth of Aedes aegypti (Diptera: Culicidae)

Environmental Toxicology, EarlyView.
ABSTRACT Mancozeb is one of the most widely used agricultural fungicides, exhibiting strong efficacy against a broad spectrum of phytopathogenic fungi. However, its widespread application comes at the cost of environmental contamination. Here, we show the effects of Inga vera leaf litter contamination with Mancozeb on life‐history traits of Aedes ...
Heloise Restello Remus, Gilberto Dinis Cozzer, João Tauchert, Raquel de Brito, Cássia Alves Lima‐Rezende, Jacir Dal Magro, Natalia Bastiani da Luz, Daniel Albeny‐Simões, Renan de Souza Rezende   +8 more
wiley   +1 more source

Morpho-toxicology of chlorpyrifos to prolactin cells of a freshwater catfish, Heteropneustes fossilis =Morpho-toxicology of chlorpyrifos to prolactin cells of a freshwater catfish, Heteropneustes fossilis [PDF]

Acta Scientiarum: Biological Sciences, 2012
In the present study, an organophosphorus compound Coroban (active ingredient chlorpyrifos – E.C. 20%) was used. In short-term exposure the fish were subjected to 0.8 of 96h LC50 value of chlorpyrifos (1.76 mg L-1) for 96h.
Diwakar Mishra, Sarojni Tripathi, Sanjay Kumar Srivastava, Ajai Kumar Srivastav, Sunil Kumar Srivastav   +4 more
doaj  

Russian wheat aphid: a model for genomic plasticity and a challenge to breeders

Insect Science, EarlyView.
Invasive foundress finds suitable habitat and reproduces through pathogenesis. Wingless females produce life offspring quickly, which leads to high population densities. High population densities result in competition, which may induce epigenetic changes and wing development for dispersal.
Astrid Jankielsohn, Vicky L. Tolmay, Marlon‐Schylor Luke le Roux, Lintle Mohase, Mpho S. Mafa, Vittorio F. Nicolis, Eduard Venter, Nicolaas Francois Visser Burger, Anna‐Maria Botha   +8 more
wiley   +1 more source