Results 101 to 110 of about 76,323 (380)

POTENTIAL FARM-LEVEL IMPACTS OF PROPOSED FQPA IMPLEMENTATION: THE TENNESSEE CASE [PDF]

open access: yes
This research estimates farm-level impacts of a potential ban on organophosphates and carbamates under the FQPA. Insecticide expenditure and first- and fifth-year yield impacts are estimated for five Tennessee representative farms.
Ray, Daryll E.   +3 more
core   +1 more source

Comparative in vitro evaluation of contact activity of fluralaner, spinosad, phoxim, propoxur, permethrin and deltamethrin against the northern fowl mite, Ornithonyssus sylviarum. [PDF]

open access: yes, 2017
BackgroundNorthern fowl mites (Ornithonyssus sylviarum) are obligate hematophagous ectoparasites of both feral birds and poultry, particularly chicken layers and breeders.
Flochlay-Sigognault, Annie   +5 more
core   +1 more source

Logic‐Gated Release of a Dual Payload from a β‐Lactam Mechanophore with a Rotaxane Actuator

open access: yesAngewandte Chemie, EarlyView.
A rotaxane device operates as a logic AND gate to release a single or dual cargo payload upon application of force in the absence or the presence of water, respectively. This concept was demonstrated with the release of a ketene and varied drugs, paving the way for precision release applications.
Lei Chen, Guillaume De Bo
wiley   +2 more sources

Resistance status of main malaria vector, Anopheles stephensi Liston (Diptera: Culicidae) to insecticides in a malaria Endemic Area, Southern Iran

open access: yesAsian Pacific Journal of Tropical Medicine, 2019
Objective: To evaluate the susceptibility of Anopheles stephensi (An. stephensi) Liston, the main malaria vector in southern Iran, to WHO recommended insecticides. Methods: Larvae of An.
Madineh Abbasi   +10 more
doaj   +1 more source

Animal models of lung cancer: Phenotypic comparison of different animal models of lung cancer and their application in the study of mechanisms

open access: yesAnimal Models and Experimental Medicine, EarlyView.
Grafts used to construct lung cancer animal models come from various sources, primarily cell lines, patient‐derived tumor tissues, and circulating tumor cells. Based on the sources of grafts and research objectives, lung cancer animal models can be categorized into several types: chemical‐induced models, orthotopic transplantation models, heterotopic ...
Zixuan Yang   +7 more
wiley   +1 more source

Recent developments in the Suzuki-Miyaura reaction: 2010-2014 [PDF]

open access: yes, 2015
The Suzuki-Miyaura reaction (SMR), involving the coupling of an organoboron reagent and an organic halide or pseudo-halide in the presence of a palladium or nickel catalyst and a base, has arguably become one of most utilized tools for the construction ...
Maluenda, Irene, Navarro, Oscar
core   +2 more sources

Intramolecular Lithiation‐Borylation for the Stereoselective Synthesis of Cyclopentyl and Cyclobutyl Bis‐Boronic Esters

open access: yesAngewandte Chemie, EarlyView.
Cyclopentyl and cyclobutyl 1,3‐bis‐boronic esters have been prepared from benzylic carbamates with excellent regio‐, diastereo‐ and enantioselectivity. The method enables the asymmetric cycloalkanes bearing bis‐boronic esters which can be manipulated independently. Abstract Saturated carbocycles are common motifs in natural products and pharmaceuticals,
Christopher J. Cope   +8 more
wiley   +2 more sources

Biodegradation of Carbamates

open access: yesWater Science and Technology, 1988
A carbofuran-metabolizing Pseudomonas sp. was investigated for its capability to degrade some other toxic carbamates and its effectiveness as a decontaminant for carbamate-polluted water samples. The organisms degraded both aldicarb and carbaryl. It also decontaminated carbofuran-fortified water samples from various sources in the absence of additional
W. B. Wheeler, G. Rasul Chaudhry
openaire   +2 more sources

Die Chemie und Biologie der Tetrodotoxin Naturstofffamilie

open access: yesAngewandte Chemie, EarlyView.
Tetrodotoxin ist vor allem als das Gift des Kugelfisches bekannt, einer Delikatesse in der japanischen Küche. Seine Toxizität beruht auf der selektiven Blockade von NaV Kanälen, wie am Beispiel der NaV1.7 Pore dargestellt, wobei das DEKA Motiv hervorgehoben ist, das für die Durchlässigkeit von Natriumionen verantwortlich ist.
Benedikt Nißl   +6 more
wiley   +1 more source

Control of the Colorado Potato Beetle (Coleoptera: Chrysomelidae) on Tomatoes with \u3ci\u3eBacillus Thuringiensis\u3c/i\u3e Var. \u3ci\u3eThuringiensis\u3c/i\u3e [PDF]

open access: yes, 2017
(excerpt) The Colorado potato beetle, Leptinotarsa decemlineata (Say), is a serious pest of tomatoes grown in this country. This beetle is also developing resistance to several classes of chemical insecticides including most of the carbamates ...
Cantelo, W. W, Cantwell, G. E
core   +2 more sources

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