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Journal of Algebra and Its Applications, 2019 In analogy to the elementwise definitions of UU- and UJ-rings, a ring [Formula: see text] is called UNJ if [Formula: see text]. After presenting several characterizations and properties, we consider the UNJ-rings within many well-studied classes of rings.
Kosan, M. Tamer +2 more
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Rings of rings: calixpyrrole cyclotrimers
Arkivoc, 2021 Los calixpirroles son una clase de heteromacrociclos que han sido un tema de considerable interés en las últimas dos décadas debido a su rica química huésped-huésped como receptores de aniones. Se han informado varias estructuras que comprenden más de una unidad de calixpirrol como receptores multitópicos y multivalentes.
Rakia Saidi +4 more
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Assessment of agar gel loaded with micro-emulsion for the cleaning of porous surfaces
CeROArt : Conservation, Exposition, Restauration d'Objets d'Art, 2010 Agar gel loaded with micro-emulsion could be used to extract lipophilic materials from porous surfaces. The physical properties of the gels are good enough for a conservation work. They allow the micro-emulsion to flow on the porous surface and to wet it
Florence Gorel
doaj +1 more source
Relationship Between a Homoderivation and a Semi-Derivation
Journal of New TheoryLet $\wp$ be a ring. It is shown that if an additive mapping $\vartheta$ is a zero-power valued on $\wp$, then $\alpha:\wp\rightarrow\wp$ such that $\alpha=\vartheta+1$ is a bijective mapping of $\wp.$ The main aim of this study is to prove that ...
Selin Türkmen
doaj +1 more source
Book Review: Thinking About Art [PDF]
, 1988 Book review for Thinking About Art, Edmund Burke Feldman, Prentice Hall, Englewood Cliffs, NJ ...
Ring, Laurie Gomon
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Propagation-invariant beams with quantum pendulum spectra: from Bessel beams to Gaussian beam-beams [PDF]
, 2013 We describe a new class of propagation-invariant light beams with Fourier transform given by an eigenfunction of the quantum mechanical pendulum. These beams, whose spectra (restricted to a circle) are doubly-periodic Mathieu functions in azimuth, depend
Dennis, Mark R, Ring, James D
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Rings, rings, rings: what does CN tell us? [PDF]
Proceedings of the International Astronomical Union, 2017 AbstractCN emission lines are among the brightest, and have been observed in the last 20 years with single dish observations. With modern interferometers, we are now able to spatially resolve CN emission, which often shows ring-like structures. We investigate whether such structures trace the morphology of the disks, or if they have a chemical origin ...
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Oral mucositis is a common and debilitating side effect of childhood cancer and stem cell transplant treatments. It affects the quality of life of children and young people (CYP) and places a strain on services. Photobiomodulation is recommended for oral mucositis prevention in international guidance but is poorly implemented in UK ...
Claudia Heggie +4 more
wiley +1 more source
Fabrication of large ceramic electrolyte disks [PDF]
, 1972 Process for sintering compressed ceramic powders produces large ceramic disks for use as electrolytes in high-temperature electrolytic cells. Thin, strain-free uniformly dense disks as large as 30 cm squared have been fabricated by slicing ceramic slugs ...
Ring, S. A.
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The D-ring, Not the A-ring, Rotates in Synechococcus OS-B' Phytochrome [PDF]
, 2014 Phytochrome photoreceptors in plants and microorganisms switch photochromically between two states, controlling numerous important biological processes.
Borucki +40 more
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