Results 71 to 80 of about 37,872 (210)

Ambiguities in Assigning Single‐Crystal NMR Data to Individual Atoms in the Crystal Structure: A Case Study of Hambergite, Be2$$ {}_2 $$BO3$$ {}_3 $$OH, by 9Be and 11B NMR Spectroscopy, XRD Measurements and DFT Calculations

Magnetic Resonance in Chemistry, EarlyView.
The fundamental question of how to assign NMR resonances to specific atoms in the unit cell is addressed by using the 9Be and 11B spectra of the natural mineral hambergite as a model system. ABSTRACT The NMR interaction tensors of 9Be and 11B of hambergite, Be2$$ {}_2 $$BO3$$ {}_3 $$OH, were derived from single‐crystal NMR experiments.
Jennifer Steinadler, Georg Krach, Kristian Witthaut, Tobias Stürzer, Rupert Hochleitner, Wolfgang Schnick, Thomas Bräuniger   +6 more
wiley   +1 more source

Mineral Speciation for CO2 Captured by Potassium Hydroxide

ChemistryOpen, EarlyView.
Multimodal and deconvolution analysis of the crystalline and amorphous mineral products from the rapid capture of CO2 in aqueous, aqueous‐ethanol, and aqueous‐acetone solutions of potassium hydroxide by complementary single‐crystal and powder X‐ray diffraction, and high field 1H, 13C, and 39K NMR, provides new insight into the speciation of both KHCO3‐
Ehsan Ezzatpour Ghadim, Stephanie Bachmann, Rodrigo S. Correa, Dinu Iuga, Joanna F. Collingwood, Peter J. Sadler   +5 more
wiley   +1 more source

When should firms watch for cross‐industry competition? A demand‐side perspective

Strategic Management Journal, EarlyView.
Abstract Research Summary Research on competitor identification has primarily focused on intra‐industry competition. However, cross‐industry competitive threats are prevalent and consequential. We adopt a consumer‐oriented perspective to examine how consumer perceptions shape de facto competition across industry boundaries.
Ying Li, Samira Reis, Olga M. Khessina
wiley   +1 more source

Erving Goffman at 100: A Chameleon Seen as a Rorschach Test within a Kaleidoscope

Symbolic Interaction, EarlyView.
The 100th anniversary of Erving Goffman's birth was in 2022. Drawing on his work, the Goffman archives, the secondary literature, and personal experiences with him and those in his university of Chicago cohort, I reflect on some implications of his work and life, and the inseparable issues of understanding society.
Gary T. Marx
wiley   +1 more source

A Systems Engineering Methodology for System of Autonomous Systems: Test and Evaluation

Systems Engineering, EarlyView.
ABSTRACT Recent advances in artificial intelligence and machine learning (AI/ML) have resulted in autonomous systems that reduce operators' workload and involvement in hazardous missions. Integrating these systems into an existing system of systems (SoS) can evolve it into a system of autonomous system (SoAS).
Mohammadreza Torkjazi, Ali K. Raz
wiley   +1 more source

Between the Sheets: CH3SO3H Molecules Intercalating B2O3 Layers

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
The intercalation compound B6O9·CH3SO3H can be seen as the stabilization of a new B2O3 modification by methanesulfonic acid. The structure elucidation was performed by X‐ray diffraction and solid‐state NMR measurements. The reaction of boric acid and methanesulfonic acid yielded single crystals of B6O9·CH3SO3H (monoclinic, I2/a, Z = 8, a = 873.19(3), b 
Christian Logemann, Michael Daub, Jörn Bruns, Jan Konrad Wied, Jörn Schmedt auf der Günne, Harald Scherer, Anke Schaub, Mathias S. Wickleder   +7 more
wiley   +1 more source

Towards an anthropology of acquisition: ‘How did you get that?’ Vers une anthropologie de l'acquisition : « Où as‐tu trouvé ça ? »

Journal of the Royal Anthropological Institute, EarlyView.
The production‐distribution‐consumption triad has structured how anthropologists understand exchange for roughly a century. This article argues for expanding this triad to include an explicit focus on acquisition – the systems, processes, and practices of acquiring.
Hanna Garth
wiley   +1 more source

Distance magic labeling in complete 4-partite graphs [PDF]

, 2014
Daniel Kotlar
openalex   +1 more source

‘Vitamins’, shortcuts, and athletic citizenship in Ethiopia and Cameroon: considering sporting ethics beyond biomedicine « Vitamines », courts‐circuits et citoyenneté sportive en Éthiopie et au Cameroun : l’éthique du sport, au‐delà de la biomédecine

Journal of the Royal Anthropological Institute, EarlyView.
This article argues that the current way of thinking about ethics in sport in primarily biomedical terms, and in particular in terms of the presence of particular pharmaceutical substances, fails to account for broader notions of sporting ethics and fairness in the Global South.
Michael Crawley, Uroš Kovač
wiley   +1 more source

The agency of a marmalade machine: Gender, class and mechanical gadgets in the British Kitchen, c.1870–1938

Gender &History, EarlyView.
Abstract This article explores the marmalade machine, a mechanical device designed to slice orange peel. These niche objects were manufactured between roughly 1870 and 1938 in Britain. As a so‐called ‘labour‐saving’ gadget, the marmalade machine sliced orange peel quickly and effectively, removing the tedious process of slicing orange peel by hand ...
Katie Carpenter
wiley   +1 more source