Results 61 to 70 of about 149,608 (284)
Insights into DNA platination within unusual structural settings [PDF]
, 2011 2D [1H, 15N] HSQC NMR spectroscopy has been used to monitor reaction and product formation between [Pt(15NH3)2I2] and nucleic acids possessing irregular topologies and containing site specific phosphorothioate substitution in the phosphodiester backbone.
Harvie, Stephanie +2 more
core +2 more sources
Advanced Science, EarlyView.This review highlights recent advancements in stabilizing single metal atoms on graphitic carbon nitride emphasizing innovative synthesis strategies and emerging applications in electrocatalysis, photocatalysis and organic transformations, along with key challenges and future perspective. Abstract Emerging as a new frontier in catalysis science, single‐
Wenyao Zhang +6 more
wiley +1 more source
Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides
Angewandte Chemie, EarlyView.A phosphorus ylide‐mediated strategy achieves the direct fixation of nitrous oxide (N2O) to access diazo compounds, which after intra‐ or intermolecular trapping, afford N2‐containing organic building blocks. This approach provides an alternative to hazardous diazo‐transfer reagents and establishes N2O fixation as a sustainable methodology.
Jhen‐Kuei Yu +4 more
wiley +2 more sources
Scientia Agricola, 2003 Most studies dealing with the utilization of 15N labeled plant material do not present details about the labeling technique. This is especially relevant for legume species since biological nitrogen fixation difficults plant enrichment.
Edmilson José Ambrosano +9 more
doaj +1 more source
Advanced Science, EarlyView.A targeted metabologenomic strategy integrating genomic and metabolomic hallmarks enabled the discovery of two new thioamides, thiogochangamides A and B, from bacteria. Their absolute configurations, previously unresolved within the thioviridamide family, were fully assigned through various chemical derivatizations and computational analysis ...
Young Eun Du +18 more
wiley +1 more source
Global Nitrogen Deposition Promotes Carbon Sink Formation in Terrestrial Ecosystems
Advanced Science, EarlyView.Nitrogen deposition alleviates ecosystem N limitation and enhances carbon sinks. Using 829 observations, we show 36% of deposited N is retained globally (39.15 Tg N yr−1), with distinct NHx and NOy contributions. This retention drives a terrestrial C sink of 0.88 Pg C yr−1 (25.48%), highlighting the importance of pool‐specific C:N stoichiometry ...
Lei Li +6 more
wiley +1 more source
Nitrogênio proveniente da adubação nitrogenada e de resíduos culturais na nutrição da cana-planta
Pesquisa Agropecuária Brasileira, 2011 O objetivo deste trabalho foi avaliar a recuperação, pela cana-planta, do nitrogênio (15N) proveniente da ureia e de resíduos culturais da palhada e do sistema radicular da cultura da cana (Saccharum spp.) incorporados ao solo.
André Cesar Vitti +6 more
doaj +1 more source
, 2010 Excess levels of 15N isotopes which have been detected in primitive solar system materials are explained as a remnant of interstellar chemistry which took place in regions of the protosolar nebula. Chemical models of nitrogen fractionation in cold clouds
Bergin +34 more
core +1 more source
Advanced Science, EarlyView.In maize, the bHLH transcription factor ZmbHLH118 directly binds to the promoter of ZmCLCa and inhibits its expression. Tonoplast‐localized ZmCLCa mediates NO3− influx into the vacuole to regulate intracellular NO3− homeostasis, modulating nitrate uptake and metabolism, plant growth, and grain yield.
Chaonan Zhang +13 more
wiley +1 more source
Recuperação do nitrogênio (15N) da uréia e da palhada por soqueira de cana-de-açúcar (Saccharum spp.) [PDF]
Revista Brasileira de Ciência do Solo, 2003 Desenvolveu-se um experimento com vistas em avaliar a utilização do nitrogênio mineralizado da palhada (15N) e do nitrogênio da uréia (15N) aplicada em soqueira de cana-de-açúcar.
G. J. C. Gava +3 more
doaj +1 more source