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10. Extension and the Ground in Motion’s Gestalt: Literal and metaphoric

Author

Mastandrea Stefano and Kennedy John M.

Subjects
motion, extension, gestalt, animals, dancers, ground, shadows, extremes, Philosophy. Psychology. Religion, Psychology, BF1-990
Abstract

We propose that in pictures both the extended limbs of actors and the ground are involved in gestalts for movement. Limbs extend to suggest more motion literally when a dancer is in air and refer to a canonical pose when on the ground. A running pony’s curled limbs off the ground depict fast action literally. A horse’s flying-gallop off the ground suggests speedy motion metaphorically. Cast shadows indicate the actor’s location with respect to the ground. We consider extended and curled limbs, on-ground and off, in literal and metaphoric pictures.

Published
2024
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11. InBRIEF

Author

Freilich, Chuck and Kennedy, John F.

Published
2023

23. Oxygen incorporation effects on the structural and thermoelectric properties of copper(I) iodide.

Author

Markwitz, Martin, Malone, Niall, Back, Song Yi, Gobbi, Alexander, Hardy, Jake, Murmu, Peter P., Mori, Takao, Ruck, Ben J., and Kennedy, John V.

Subjects
THERMOELECTRIC materials, PARTIAL pressure, THIN films, THERMOELECTRIC effects, OPTICAL measurements
Abstract

Oxygen is a ubiquitous contaminant in thin films grown in high vacuum systems, and it was hypothesized to play an important role in the properties of the p -type conductivity of transparent copper(I) iodide, CuI. We study the ambient properties of CuI deposited at various partial pressures of oxygen gas. Through a variety of experimental techniques, we find that achieving a critical oxygen partial pressure of below p(O2) = 3 × 10 − 5 mbar is essential for depositing stoichiometric and conductive CuI thin films. Notably, we relate the commonly reported copper excess to the presence of oxygen within the CuI films. Notably, we relate the commonly reported excess of copper in CuI thin films to to the presence of oxygen. Finally, we infer from transport and optical measurements that the hole transporting properties of sputtered CuI films are dominated by an abundance of VCu defects with an acceptor transition energy of 84 ± 3 meV rather than OI defects with an acceptor transition energy of 175 ± 14 meV. [ABSTRACT FROM AUTHOR]

Published
2024
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