Results 241 to 250 of about 1,110,939 (298)
Advanced Functional Materials, EarlyView.The role of novel thiophene‐based ligands with halogen substitutions in enhancing the chiroptical and optoelectronic properties of 2D chiral HOIPs has been investigated. By tailoring ligand design, enhanced CD and CPL properties are achieved, with improved CPL discrimination in photodetectors.
Boesung Kwon +4 more
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Advanced Functional Materials, EarlyView.We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong +6 more
wiley +1 more source
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The evolution of nitrogen cycling
Origins of life and evolution of the biosphere, 1988Based upon arguments concerning properties of the environment and the energetics of nitrogen transformation reactions, new hypotheses regarding their evolution are presented. These hypotheses are supported by new calculations and observations germane to understanding the evolution of the nitrogen cycle. From calculations of shock production by meteor
R L, Mancinelli, C P, McKay
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The nitrogen and sulphur cycles
Biochemical Systematics and Ecology, 1988This book contains 17 selections. Some of the titles are: Genetic regulation of nitrogen fixation; On the analysis of symbiotic genes of Rhizobium; Regulation of nitrogen assimilation by bacteria; Alternative and conventional nitrogenases; and The role of oxygen and hydrogen in nitrogen fixation.
J. R. Etherington +2 more
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Annual Review of Nutrition, 1998
▪ Abstract This review examines the involvement of the gastrointestinal tract in the utilization of nitrogen, the identities of the nitrogenous substances entering and leaving the gut, and the significance of this recycling in the overall nitrogen economy of the body. It is concerned with nonruminant mammals, including man.
M F, Fuller, P J, Reeds
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▪ Abstract This review examines the involvement of the gastrointestinal tract in the utilization of nitrogen, the identities of the nitrogenous substances entering and leaving the gut, and the significance of this recycling in the overall nitrogen economy of the body. It is concerned with nonruminant mammals, including man.
M F, Fuller, P J, Reeds
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Current Opinion in Chemical Biology, 1998
The minimal nitrogen cycle involves five reduction reactions and three oxidation reactions, each of which poses interesting problems in bioinorganic chemistry, energy transduction and protein structure/function relationships. Many of the major recent developments in this field have depended on the acquisition of protein crystal structures, including ...
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The minimal nitrogen cycle involves five reduction reactions and three oxidation reactions, each of which poses interesting problems in bioinorganic chemistry, energy transduction and protein structure/function relationships. Many of the major recent developments in this field have depended on the acquisition of protein crystal structures, including ...
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2006
Elemental nitrogen (N2) makes up 80% of the atmosphere (by volume) and represents the dominant form of atmospheric nitrogen gas. Despite its high atmospheric abundance, N2 is generally nonreactive, due to strong triple bonding between the N atoms, making much of this N2 pool unavailable to organisms.
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Elemental nitrogen (N2) makes up 80% of the atmosphere (by volume) and represents the dominant form of atmospheric nitrogen gas. Despite its high atmospheric abundance, N2 is generally nonreactive, due to strong triple bonding between the N atoms, making much of this N2 pool unavailable to organisms.
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1981
Nitrogen has a crucial role to play in primary productivity, and indeed is the plant nutrient required in greatest quantity. In the biosphere it undergoes what is essentially a cyclical eight-electron shuttle between the most oxidized form at valence +5 (NO 3 - ) and the most reduced form at valence -3 (NH3).
W. D. Grant, P. E. Long
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Nitrogen has a crucial role to play in primary productivity, and indeed is the plant nutrient required in greatest quantity. In the biosphere it undergoes what is essentially a cyclical eight-electron shuttle between the most oxidized form at valence +5 (NO 3 - ) and the most reduced form at valence -3 (NH3).
W. D. Grant, P. E. Long
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1982
The purpose of this paper is to review the biogeochemical nitrogen cycle. The importance of nitrogen derives mainly from its fundamental nutritional role, but is also due to the fact that nitrogenous substances are important environmental pollutants. The possible effect of the interaction between nitrogen oxides and the stratospheric ozone layer is a ...
R. Söderlund, T. Rosswall
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The purpose of this paper is to review the biogeochemical nitrogen cycle. The importance of nitrogen derives mainly from its fundamental nutritional role, but is also due to the fact that nitrogenous substances are important environmental pollutants. The possible effect of the interaction between nitrogen oxides and the stratospheric ozone layer is a ...
R. Söderlund, T. Rosswall
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Nitrogen Cycle Electrocatalysis
Chemical Reviews, 2009Victor, Rosca +3 more
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