Results 91 to 100 of about 49,863 (262)

Organics in comet 67P – a first comparative analysis of mass spectra from ROSINA–DFMS, COSAC and Ptolemy [PDF]

, 2017
The ESA Rosetta spacecraft followed comet 67P at a close distance for more than 2 yr. In addition, it deployed the lander Philae on to the surface of the comet.
A. Bieler, A. Morse, Balsiger, Biele, C.-Y. Tzou, Calmonte, Capaccioni, Cottin, F. Goesmann, Finzi, Fornasier, Fray, Goesmann, Goesmann, Graf, Grün, H. Balsiger, Huebner, Hässig, I. Wright, J. de Keyser, J.J. Berthelier, Kathrin Altwegg, Korth, Krüger, L. Le Roy, M. G. G. T Taylor, M. Rubin, M. Schuhmann, Meier, Mitchell, Morse, Morse, Nevejans, Quirico, Rubin, Rubin, S. Gasc, S.A. Fuselier, Stein, Stern, T. I. Gombosi, Thomas, U. Calmonte, Ulamec, Wright   +45 more
core   +4 more sources

Simultaneous Formation of Arsenic Nitride Chalcogenides As3NS3 and As3NSe3 and Arsenic–Chalcogen Zintl Anions by Ammonothermal Reactions

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Mn, As, and S or Se react in liquid NH3 to the Zintl ions (As4S6)2– and (As2Se6)2–. Simultaneously, the arsenic nitride chalcogenides As3NS3 and As3NSe3 are formed. Their isotypic structures contain planar trigonal NAs3 groups connected via chalcogen bridges to 1D‐strands forming channels that can host solvent molecules.
Frederik Hermann, Jörg Daniels, Gregor Schnakenburg, Thomas Bredow, Johannes Beck   +4 more
wiley   +1 more source

Dichloridobis(methylamine-κN)boron(III) chloride

Acta Crystallographica Section E, 2008
The title compound, C2H10BCl2N2+·Cl− or [BCl2(H3CNH2)2]+·Cl−, is the first crystallographically characterized di(alkylamine)–BCl2+ salt. The B atom is tetrahedrally coordinated by two Cl and two methylamine N atoms.
Martin Jansen, Jürgen Nuss, Markus Weinmann   +2 more
doaj   +1 more source

Comparison of Three Sympatric Desert Lizards: Digestive Tract Structure, Digestive Enzyme Activities, Gut Microbiota, and Metabolites

Integrative Zoology, EarlyView.
We performed 16S rDNA sequencing and metabolite profiling for three sympatric lizard species—Teratoscincus roborowskii, Phrynocephalus axillaris, and Eremias roborowskii—and compared their goblet cell and enzyme activities in the digestive tract. Our study suggests that the dietary niche may promote divergence or convergence of microbiota across host ...
Yi Yang, Ziyi Wang, Ruichen Wu
wiley   +1 more source

N-(2-Nitrophenylsulfonyl)-N-(4-nitrophenylsulfonyl)methylamine

Acta Crystallographica Section E, 2008
In the crystal structure of the title compound, C13H11N3O8S2, molecules are linked by intermolecular C—H...O hydrogen bonds into zigzag chains running parallel to the c axis.
Haiyan Lu
doaj   +1 more source

Inhibitor specificity of amine oxidase [PDF]

, 1943
Although at the present time it appears clear that amine oxidase oxidation of adrenalin, or other o-diphenolic pressor amines such as were studied by Richter (6), does not play a significant physiological role, it is equally clear that the inactivation ...
Alles, Gordon A., Heegaard, Erik V.
core  

Gut Microbial Metabolism and Nonalcoholic Fatty Liver Disease. [PDF]

, 2019
The gut microbiome, the multispecies community of microbes that exists in the gastrointestinal tract, encodes several orders of magnitude more functional genes than the human genome. It also plays a pivotal role in human health, in part due to metabolism
Lynch, Susan V, Sharpton, Suzanne R, Terrault, Norah A, Yong, Germaine JM   +3 more
core   +1 more source

Investigation into the delivery and evaluation of a unique Avena sativa (Oat) Lipid Extract on skin barrier using LC‒MS/MS, Raman spectroscopy, immunostaining analysis and skin efficacy

International Journal of Cosmetic Science, EarlyView.
Abstract Objectives Oat lipids are rich in ceramides. In this investigation, we analysed the delivery of a specific Oat Lipid Extract derived from Avena sativa, comprising ‘skin identical’ ratios of fatty acids, ceramides and cholesterol/sterol. This investigation is the first reported investigation of oat lipids utilizing Raman spectroscopy for the ...
E. Gombert, C. Dewis
wiley   +1 more source

Simulating Methylamine Using a Symmetry-Adapted, Qubit Excitation-Based Variational Quantum Eigensolver

Quantum Reports
Understanding the capabilities of quantum computer devices and computing the required resources to solve realistic tasks remain critical challenges associated with achieving useful quantum computational advantage. We present a study aimed at reducing the
Konstantin M. Makushin, Aleksey K. Fedorov   +1 more
doaj   +1 more source

N-(2-Aminophenylsulfonyl)-N-(2-nitrophenylsulfonyl)methylamine

Acta Crystallographica Section E, 2008
In the title molecule, C13H13N3O6S2, the two benzene rings form a dihedral angle of 28.59 (7)°. The crystal sructure exhibits weak intermolecular N—H...O, C—H...O and C—H...N hydrogen bonds and π–π ...
Zu-Wei Song, Xu-Yun Li
doaj   +1 more source