Results 121 to 130 of about 79,056 (283)

Isolation of Bacteria from Agricultural Soils and Evaluation of Their Degradative Capacity for Organochlorine and Organophosphorus Pesticides

open access: yesAgronomy
In this work, OP- and OC-degrading bacteria were isolated from agricultural soil samples taken in the department of Bolivar, Colombia. The objective of this research was to degrade organochlorine and organophosphorus pesticides using bacterial colonies ...
Victor A. Rodríguez-Orozco   +2 more
doaj   +1 more source

A modular phosphate tether-mediated divergent strategy to complex polyols

open access: yesBeilstein Journal of Organic Chemistry, 2014
An efficient and divergent synthesis of polyol subunits utilizing a phosphate tether-mediated, one-pot, sequential RCM/CM/reduction process is reported. A modular, 3-component coupling strategy has been developed, in which, simple “order of addition” of ...
Paul R. Hanson   +4 more
doaj   +1 more source

A Stepwise [4 + 3] Cycloaddition Reaction of the 1,3-Diphenyl-2-azaallyl Anion [PDF]

open access: yes, 1993
The 1,3-diphenyl-2-azaallyl anion (1) undergoes [3 + 2] cycloaddition reactions with the s-cis-fixed 1,3-dienes 8-11. In contrast, 1,1,2,2,3,3-hexamethyl-4,5-bis(methylene)cyclopentane (7) reacts with 1 to give the [4 + 3] cycloadduct 13 and the linear 1,
Anh   +23 more
core   +1 more source

Analytical study of organophosphorus poisoning

open access: yesMRIMS Journal of Health Sciences, 2018
Background: Organophosphorus (OP) compounds constitute a heterogeneous category of chemicals specially designed for the control of Pests, weeds or plant diseases. The importance of pesticides in India can be understood from the fact that agriculture is a
M Narayana Reddy, S Shavukath Ali
doaj   +1 more source

Evaluation of the Protective Effects of Hydroalcoholic Extract of Satureja avromanica Against Malathion-induced Oxidative Stress in the Liver: An Experimental Study

open access: yesPharmaceutical and Biomedical Research, 2020
Background: Studies have shown that organophosphorus pesticides such as malathion induces oxidative stress injury and tissue damage.  Objectives: This research aimed to determine the effects of the hydroalcoholic extracts of Satureja avromanica (SA) on ...
Akram Ranjbar   +6 more
doaj  

Cyclic phosphonium ionic liquids

open access: yesBeilstein Journal of Organic Chemistry, 2014
Ionic liquids (ILs) incorporating cyclic phosphonium cations are a novel category of materials. We report here on the synthesis and characterization of four new cyclic phosphonium bis(trifluoromethylsulfonyl)amide ILs with aliphatic and aromatic pendant ...
Sharon I. Lall-Ramnarine   +8 more
doaj   +1 more source

Rational design of cyclopropane-based chiral PHOX ligands for intermolecular asymmetric Heck reaction

open access: yesBeilstein Journal of Organic Chemistry, 2014
A novel class of chiral phosphanyl-oxazoline (PHOX) ligands with a conformationally rigid cyclopropyl backbone was synthesized and tested in the intermolecular asymmetric Heck reaction.
Marina Rubina   +3 more
doaj   +1 more source

The impact of weather variability and climate change on pesticide applications in the US - An empirical investigation [PDF]

open access: yes
Weather variability and climate change affect the application of pesticides in agriculture, in turn impacting the environment. Using panel data regression for the US, we find that weather and climate differences significantly influence the application ...
Nikolinka G. Koleva   +2 more
core  

Imidazole aldoximes effective in assisting butyrylcholinesterase catalysis of organophosphate detoxification. [PDF]

open access: yes, 2014
Intoxication by organophosphate (OP) nerve agents and pesticides should be addressed by efficient, quickly deployable countermeasures such as antidotes reactivating acetylcholinesterase or scavenging the parent OP.
Amitai, Gabriel   +5 more
core  

Malathion-increased Hepatotoxicity in Diabetic Rats

open access: yesPharmaceutical and Biomedical Research, 2020
Background: Malathion (MT), an organophosphorus pesticide, induces hepatotoxicity and is associated with hyperglycemia and the development of diabetes mellitus.  Objectives: This study was aimed to evaluate the effects of sub-acute exposure to sub-lethal
Seyedeh Azam Hosseini   +5 more
doaj  

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