Results 11 to 20 of about 292,308 (268)
Organic Matter in Cosmic Dust [PDF]
Elements, 2016 Organics are observed to be a significant component of cosmic dust in nearly all environments were dust is observed. In many cases only remote telescope observations of these materials are obtainable and our knowledge of the nature of these materials is very basic. However, it is possible to obtain actual samples of extraterrestrial dust in the Earth's
Sandford, Scott A. +2 more
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Design, Synthesis and Various Bioactivity of Acylhydrazone-Containing Matrine Analogues
Molecules, 2023 Compounds with acylhydrazone fragments contain amide and imine groups that can act as electron donors and acceptors, so they are easier to bind to biological targets and thus generally exhibit significant biological activity.
Wanjun Ni +4 more
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Synthesis and Evaluation of 11-Butyl Matrine Derivatives as Potential Anti-Virus Agents
Molecules, 2022 Matrine derivatives were reported to have various biological activities, especially the ester, amide or sulfonamide derivatives of matrine deriving from the hydroxyl or carboxyl group at the end of the branch chain after the D ring of matrine is opened ...
Wanjun Ni +4 more
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Phosphine Oxide-Promoted Rh(I)-Catalyzed C–H Cyclization of Benzimidazoles with Alkenes
Molecules, 2023 Ligands play a critical role in promoting transition-metal-catalyzed C–H activation reactions. However, owing to high sensitivity of the reactivity of C–H activation to metal catalysts, the development of effective ligands has been a formidable challenge
Mingzhen Lu, Weiwei Xu, Mengchun Ye
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European Journal of Soil Science, 2011 [Guest Editors' Introduction]
Powlson, D. S. +4 more
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Research progress of anti-plant virus agents based on marine natural products
Advanced Agrochem, 2023 Plant virus diseases are a serious threat to food crops, vegetables, and cash crops, their prevention and control are extremely difficult, known as ‘plant cancer’, and effective prevention and control agents are extremely short.
Hongjian Song, Yuxiu Liu, Qingmin Wang
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Organic matter in space - An overview [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractOrganic compounds are ubiquitous in space: they are found in diffuse clouds, in the envelopes of evolved stars, in dense star-forming regions, in protoplanetary disks, in comets, on the surfaces of minor planets, and in meteorites and interplanetary dust particles.
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Agronomy, 2021 Rice straw is an abundant resource, but its use as a sandy soil amendment does not increase soil organic matter (SOM) accumulation. Our study aimed to determine the altered decomposition processes that result from mixing rice straw (RS) (low N, high ...
Wimonsiri Pingthaisong, Patma Vityakon
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Antibiotics, 2023 Methicillin-resistant Staphylococcus aureus (MRSA) is a worldwide health threat and has already tormented humanity during its long history, creating an urgent need for the development of new classes of antibacterial agents.
Fan-Fei Meng +8 more
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Isolation and characterization of bis(silylene)-stabilized antimony(I) and bismuth(I) cations
Nature Communications, 2023 Monovalent group 15 cations L2Pn + (L = σ-donor ligands, Pn = N, P, As, Sb, Bi) have attracted significant experimental and theoretical interest because of their unusual electronic structures and growing synthetic potential.
Xuyang Wang +7 more
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