Results 181 to 190 of about 70,737 (245)

End-Member Mixing Model for Methane Carbon Isotope Fractionation During Shale Gas Desorption and Its Application. [PDF]

ACS Omega
Zhai C, Tao C, Zou Y, Yang Z, Ye X, Nie H.   +5 more
europepmc   +1 more source

Environmental microbiology explains the largest positive carbon isotope excursion in Earth history, the Lomagundi-Jatuli Event. [PDF]

Appl Environ Microbiol
Prave AR.
europepmc   +1 more source

Extreme precipitation reduces the recent photosynthetic carbon isotope signal detected in ecosystem respiration in an old-growth temperate forest. [PDF]

Tree Physiol
Diao H, Wu J.
europepmc   +1 more source

Biosynthesis of the Fully Saturated C16 Homosesquiterpene Descartane Through Deprotonation With Cyclopropanation

Angewandte Chemie International Edition, EarlyView.
A non‐canonical C16 sesquiterpene synthase from Morganella morganii produces the unusual scaffold descartane. Its cyclisation mechanism was rationalised by isotopic labelling experiments and DFT calculations. Site‐directed mutagenesis altered enzyme function, resulting in alternative products, including voltairene, which requires a different ...
Kexin Yang, Philip Troycke, Bernd Goldfuss, Michael Groll, Jeroen S. Dickschat   +4 more
wiley   +1 more source

The Carbon Isotope Ratio as an Objective Biomarker of Added Sugar Intake: A Scoping Review of Current Evidence in Human Nutrition. [PDF]

Adv Nutr
Tripicchio GL, Smethers AD, Johnson JJ, Olenginski JA, O'Brien DM, Fisher JO, Robinson VA, Nash SH.   +7 more
europepmc   +1 more source

Generation of secondary microbial methane of high-rank coals: insights from the microbial community and carbon isotope. [PDF]

Front Microbiol
Nai H, Xu S, Chen B, Zhong J, Fang L, Qin S, Sano Y.   +6 more
europepmc   +1 more source

Highly Enantio‐ and Diastereoselective Synthesis of Tetrahydrofuran Frameworks via Chiral Lewis Acid‐Catalyzed Formal [3+2] Cycloaddition of Allylsilanes

Angewandte Chemie International Edition, EarlyView.
The first catalytic asymmetric formal [3+2] cycloaddition of allylsilanes delivers cis‐2,5‐disubstituted tetrahydrofuran‐3‐ones that serve as versatile intermediates for the synthesis of diverse bioactive scaffolds. ABSTRACT A formal [3+2] cycloaddition via cyclization/1,2‐hydride shift initiated by nucleophilic attack of allylsilanes has been ...
Hosung Lee, Dong Kyu Kim, Pingshan Xin, Jin Won Lee, Terim Seo, Do Hyun Ryu   +5 more
wiley   +1 more source

Associations of Food Group Intakes with Serum Carbon Isotope Ratio Values in Youth: Results from 2 Prospective Pediatric Cohort Studies. [PDF]

J Nutr
Cohen CC, Peng MQ, Davy BM, Perng W, Shankar K, Dabelea D.   +5 more
europepmc   +1 more source

Pulsed‐Laser Ablation for the Synthesis of High‐Entropy Alloy Aerogels Toward H2O2 Production and Water Decolorization

Angewandte Chemie International Edition, EarlyView.
This work establishes a universal strategy for fabricating compositionally complex solid solution alloy aerogels via pulsed‐laser ablation and the sol‐gel process. The electrocatalytic capabilities of these aerogels are subsequently evaluated for H2O2 electrosynthesis and water treatment applications.
Cui Wang, Varatharaja Nallathambi, Lingwei Wang, Johannes Kresse, Natalia F. Shkodich, Michael Farle, René Hübner, Alexander Eychmüller, Sven Reichenberger, Stephan Barcikowski, Bin Cai   +10 more
wiley   +1 more source

Variable carbon isotope fractionation of photosynthetic communities over depth in an open-ocean euphotic zone. [PDF]

Proc Natl Acad Sci U S A
Henderson LC, Wittmers F, Carlson CA, Worden AZ, Close HG.   +4 more
europepmc   +1 more source