Results 41 to 50 of about 149,608 (284)

Applicability of a “Multi-Stage Pulse Labeling” 15N Approach to Phenotype N Dynamics in Maize Plant Components during the Growing Season

Frontiers in Plant Science, 2017
HighlightsThis work utilizes “multi-stage pulse labeling” 15N applications, primarily during reproductive growth stages, as a phenotyping strategy to identify maize hybrids with superior N use efficiency (NUE) under low N conditions.Research using ...
Amanda de Oliveira Silva, James J. Camberato, Tristan Coram, Timothy Filley, Tony J. Vyn   +4 more
doaj   +1 more source

The identification of histidine ligands to cytochrome a in cytochrome c oxidase [PDF]

, 1985
A histidine auxotroph of Saccharomyces cerevisiae has been used to metabolically incorporate [1,3-15N2] histidine into yeast cytochrome c oxidase. Electron nuclear double resonance (ENDOR) spectroscopy of cytochrome a in the [15N]histidine-substituted ...
Chan, Sunney I., Martin, Craig T., Scholes, Charles P.   +2 more
core  

The Terminal Domains of Collagen‐Like Silk Direct Molecular Interactions and Liquid–Liquid Phase Separation‐Mediated Material Assembly

Advanced Functional Materials, EarlyView.
Terminal domains of recombinant collagen‐like silk regulate hierarchical self‐assembly across molecular and material scales. We show that terminal domains of collagen‐like silk enhance triple‐helix stability and drive liquid–liquid phase separation, enabling reversible formation of fibers and self‐healing films.
Mengjie Shen, Daniil Astapov, Nur Alia Oktaviani, Mami Goto, Keiji Numata, A. Sesilja Aranko   +5 more
wiley   +1 more source

Nitrogen superfractionation in dense cloud cores

, 2008
We report new calculations of interstellar 15N fractionation. Previously, we have shown that large enhancements of 15N/14N can occur in cold, dense gas where CO is frozen out, but that the existence of an NH + N channel in the dissociative recombination ...
Alexander C. M. O'D., Brown P. D., Brown P. D., Pineau des Forets G., S. B. Charnley, S. D. Rodgers   +5 more
core   +1 more source

In Situ Amine Formation to Modulate MOF‐Derived PdIn N‐Doped Carbon Catalysts

Advanced Materials, EarlyView.
An amine‐assisted approach converts PdIn‐MOF into PdIn intermetallic nanoparticles embedded in N‐doped carbon. In situ‐generated amines trigger early Pd nucleation, producing smaller PdIn domains than direct pyrolysis. Amine sterics and basicity tune composition and particle size, while solvent and amine co‐determine textural features.
Gonzalo Egea, Jordan Santiago Martinez, M. Asunción Molina, Jaime Mazarío, Lucy Costley‐Wood, Christian Cerezo‐Navarrete, Carlo Marini, Eduardo Villalobos‐Portillo, Andrew M. Beale, Pascual Oña‐Burgos   +9 more
wiley   +1 more source

Isolation and Reactivity of a Square‐Planar Trisamido Silane

Angewandte Chemie, EarlyView.
We report the synthesis and comprehensive characterisation of a square‐planar Si(+IV) hydride supported by an unsymmetric, trianionic and dearomatised N,N,N‐pincer ligand. This system enables element–ligand cooperative reactivity as an alternative to silicon‐centred redox chemistry, illuminating a largely unexplored regime in high‐valent silicon ...
David M. J. Krengel, Xiaobai Wang, Christopher Golz, Regine Herbst‐Irmer, Oliver P. E. Townrow, Malte Fischer   +5 more
wiley   +2 more sources

The 15N-enrichment in dark clouds and Solar System objects

, 2013
The line intensities of the fundamental rotational transitions of H13CN and HC15N were observed towards two prestellar cores, L183 and L1544, and lead to molecular isotopic ratios 140 6 14N/15N 6 250 and 140 6 14N/15N 6 360, respectively.
Bonal, Lydie, Faure, Alexandre, Hily-Blant, Pierre, Quirico, Eric   +3 more
core   +2 more sources

White‐Light Emission in Zeolitic Imidazolate Framework Glasses

Advanced Materials, EarlyView.
Broadband blue emission is discovered in ZIF‐62 through vitrification and hot‐pressing. This emission is significantly enhanced and redshifted when the ZIF‐62 glass is annealed above the critical temperature (1.07Tg), being attributed to an enhancement of ligand‐to‐ligand charge transfer.
Zhencai Li, Zihao Wang, Huotian Zhang, Xuan Ge, Ivan Hung, Bozhao Yin, Fengming Cao, Pritam Banerjee, Tianzhao Xu, Lars R. Jensen, Joerg Jinschek, Morten M. Smedskjaer, Zhehong Gan, Laurent Calvez, Guoping Dong, Jianbei Qiu, Donghong Yu, Feng Gao, Haomiao Zhu, Yuanzheng Yue   +19 more
wiley   +1 more source

The Isolated Thumb Domain of Acid‐Sensing Ion Channels Forms a Minimal Folding Unit Enabling Ligand Binding Studies

Angewandte Chemie, EarlyView.
An independently folded thumb domain from acid‐sensing ion channels (ASICs) preserves ligand‐binding and proton‐sensing properties. NMR‐based interaction and pKa analyses uncover how endogenous and exogenous peptides modulate ASICs, providing a simplified model for rational drug discovery targeting proton‐gated ion channels.
Biswa P. Mishra, Ben Cristofori‐Armstrong, Elena Budusan, Mimi Golder, Neville J. Butcher, Junyu Liu, Theo Crawford, Yanni K.‐Y. Chin, Anneka Pereira Schmidt, Xinying Jia, Taylor B. Smallwood, Richard J. Clark, Jan P. Wurm, Lachlan D. Rash, Mehdi Mobli   +14 more
wiley   +2 more sources

15Nitrogen uptake from shallow- versus deep-rooted plants in multi-species mixtures and monoculture grassland [PDF]

, 2010
Only few studies have explored the importance of functional diversity in temperate agricultural grasslands in relation to nitrogen (N) uptake. This study investigates the consequence of growing deep-rooted plants together with grass-clover mixtures in ...
Eriksen, J., Høgh-Jensen, H., Pirhofer-Walzl, K., Rasmussen, J., Rasmussen, J., Søegaard, K.   +5 more
core