Results 111 to 120 of about 15,926 (251)

Status of resistance to phosphine in insect pests of stored products in Vietnam

, 2016
In response to numerous reports of failures to control insect pests of stored products with phosphine in Vietnam, a national survey for resistance to this key fumigant was undertaken in 2009–2011. Data from a more limited survey undertaken by the authors
Duong, Tu M., Bui, Nhung T. T., Collins, Patrick J.   +2 more
core   +1 more source

Unlocking Catalyst Activation as a Critical Bottleneck in Cross‐Coupling Reactions: Room‐Temperature Couplings of Weak Nucleophiles Enabled by [Pd(1‐MeNAP)TFA]2 Precatalysts

Angewandte Chemie International Edition, EarlyView.
In many Pd‐catalyzed cross‐couplings, catalyst performance has been found to be limited by catalyst activation. Methylnaphthyl (MeNAP) palladium trifluoroacetate dimers are presented as easy‐to‐store and easy‐to‐handle precursors, which rapidly activate under reaction conditions, even when only weakly coordinating, non‐reducing nucleophiles are present.
Sourav Manna, Henric F. Janning, Nikolaos V. Tzouras, Jane Anto Simplica Sagayaraj, Fadil Faizal Mannighayil, Angelino Doppiu, Lukas J. Gooßen   +6 more
wiley   +1 more source

Life stage and resistance effects in modelling phosphine fumigation of Rhyzopertha dominica (F.)

, 2010
Resistance to phosphine in insect pests of stored grain is a serious problem and there is a world-wide need for the development of sustainable resistance management strategies.
Thorne, J., Fulford, G., Ridley, A., Schlipalius, D., Collins, P.   +4 more
core   +1 more source

Caenorhabditis elegans mutants resistant to phosphine toxicity show increased longevity and cross-resistance to the synergistic action of oxygen

, 2003
Phosphine (hydrogen phosphide, PH3) is the fumigant most widely used to protect stored products from pest infestation. Despite the importance of this chemical, little is known about its mode of action. We have created three phosphine-resistant lines (pre-
Cheng, Qiang, Reilly, Paul E.B., Collins, Patrick J., Valmas, Nicholas, Kopittke, Rosemary A., Ebert, Paul R.   +5 more
core   +2 more sources

Zinc Phosphide Poisoning

Case Reports in Critical Care, 2014
Zinc phosphide has been used widely as a rodenticide. Upon ingestion, it gets converted to phosphine gas in the body, which is subsequently absorbed into the bloodstream through the stomach and the intestines and gets captured by the liver and the lungs.
Erdal Doğan, Abdulmenap Güzel, Taner Çiftçi, İlker Aycan, Feyzi Çelik, Bedri Çetin, Gönül Ölmez Kavak   +6 more
doaj   +1 more source

A Ruthenium‐(Ph‐BPE) Catalyst for Asymmetric Alkynylation of Fluoral: Enantioselection From 1 of 12 Fluxional Stereogenic‐at‐Ruthenium Complexes

Angewandte Chemie International Edition, EarlyView.
The first enantioselective alkynylations of aqueous fluoral are described. These processes are catalyzed by an iodide‐bound ruthenium‐(Ph‐BPE)‐catalyst; an octahedral metal complex that can exist as 12 diastereomeric‐at‐metal isomers. Calculations reveal that 2 of 12 stereoisomeric complexes account for 99.9% of the Boltzmann population and that ...
Weijia Shen, Sebastian Höthker, Colin E. Hayter, Nicholas K. Bowers, Andrea Pellegrini, Stefan Grimme, Michael J. Krische   +6 more
wiley   +1 more source

Integrated approach to manage strong resistance to phosphine (PH3) in rusty grain beetle, Cryptolestes ferrugineus

, 2017
Populations of rusty grain beetle, Cryptolestes ferrugineus, a cosmopolitan grain insect pest, have recently developed a very high-level of resistance (1300×) to fumigant phosphine in Australia, threatening the country’s international grain market worth ...
Pavic, Hervoika, Jagadeesan, Rajeswaran, Daglish, Gregory J., Nayak, Manoj K., Ebert, Paul R.   +4 more
core  

Atomically precise metal cluster enzymes for pathological tissue regeneration

BMEMat, EarlyView.
Schematic illustration of atomically precise metal cluster enzymes (MCEs) for pathological tissue regeneration. Atomically precise MCEs can modulate biological processes, such as attenuation of inflammatory responses, eradication of bacterial pathogens, regulation of angiogenesis, and promotion of cell development.
Ziqiang Xiong, Zhifeng Shi, Mengqing Li, Jien Han, Haoyan Chen, Maofei Ran, Shaojian Zhong, Limin Ma, Chengyun Ning, Youzhun Fan, Zhenghua Tang, Peng Yu   +11 more
wiley   +1 more source

Monosubstituted N‐Arylhydroxylamine Chemistry: Integrating Contemporary Synthetic Approaches for the Efficient Construction of Diverse Heterocyclic Scaffolds

Chemistry – A European Journal, EarlyView.
Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis, Kyriakos D. Nikopoulos, Ioannis N. Lykakis   +2 more
wiley   +1 more source

Fumigant toxicity of allyl isothiocyanate against phosphine-resistant populations of five major stored-grain insect pests

European Journal of Entomology
Given the development of resistance in stored-grain insect pests to phosphine (PH3), the grain industry is seeking alternative methods for effective pest and resistance management.
Sudhan SHAH, Rajeswaran JAGADEESAN, Manoj K. NAYAK   +2 more
doaj   +1 more source