Results 41 to 50 of about 1,681 (176)

Physicochemical Characterization of Solid Catalysts: Morphological, Structural, Textural, Reducibility, and Acid‐Base Insights

ChemCatChem, Volume 17, Issue 23, December 8, 2025.
This review provides a practical guide for the characterization of solid catalysts, emphasizing key techniques such as SEM, TEM, XRD, Raman spectroscopy, and gas physisorption. It also covers reducibility and acid‐based analyses through TPR, TPD, and FTIR.
Luis A. Gallego‐Villada, Julieth T. García‐Sánchez, Gabriela Lauer, Päivi Mäki‐Arvela, Julián E. Sánchez‐Velandia, Dmitry Yu. Murzin   +5 more
wiley   +1 more source

Nadejda Mandelstam — gardienne de la mémoire

ILCEA, 2017
Nadejda Mandelstam a sauvegardé de multiples façons les poèmes de son mari, mort en déportation en 1938. Ce travail ne portera pas uniquement sur la transmission mais aussi sur la préservation de la mémoire, à une époque et sous un régime où tout est ...
Natalia Leclerc
doaj   +1 more source

Holomorphic field theories and higher algebra

Bulletin of the London Mathematical Society, Volume 57, Issue 10, Page 2903-2974, October 2025.
Abstract Aimed at complex geometers and representation theorists, this survey explores higher dimensional analogs of the rich interplay between Riemann surfaces, Virasoro and Kac‐Moody Lie algebras, and conformal blocks. We introduce a panoply of examples from physics — field theories that are holomorphic in nature, such as holomorphic Chern‐Simons ...
Owen Gwilliam, Brian R. Williams
wiley   +1 more source

Counting and construction of holomorphic primary fields in free CFT4 from rings of functions on Calabi-Yau orbifolds

Journal of High Energy Physics, 2017
Counting formulae for general primary fields in free four dimensional conformal field theories of scalars, vectors and matrices are derived. These are specialised to count primaries which obey extremality conditions defined in terms of the dimensions and
Robert de Mello Koch, Phumudzo Rabambi, Randle Rabe, Sanjaye Ramgoolam   +3 more
doaj   +1 more source

Global Lunar Boulder Map From LRO NAC Optical Images Using Deep Learning: Implications for Regolith and Protolith

Journal of Geophysical Research: Planets, Volume 130, Issue 7, July 2025.
Abstract Boulders on the lunar surface indicate relatively recent surface activity, related to mass wasting or bedrock excavation by impact cratering, and degrade over time, producing regolith. Previously, the distribution of boulders was indirectly assessed using the anisothermality effects observed by the Lunar Reconnaissance Orbiter (LRO) Diviner ...
B. Aussel, O. Rüsch, B. Gundlach, V. T. Bickel, S. Kruk, E. Sefton‐Nash   +5 more
wiley   +1 more source

Large N bilocals at the infrared fixed point of the three dimensional O(N) invariant vector theory with a quartic interaction

Journal of High Energy Physics, 2018
We study the three dimensional O(N) invariant bosonic vector model with a λ N ϕ a ϕ a 2 $$ \frac{\lambda }{N}{\left({\phi}^a{\phi}^a\right)}^2 $$ interaction at its infrared fixed point, using a bilocal field approach and in an 1/N expansion. We identify
Mbavhalelo Mulokwe, João P. Rodrigues
doaj   +1 more source

When Everything Old Was New Again: Reclaiming Ethnonational Tradition in Post‐Soviet Buryatia

The Russian Review, Volume 84, Issue 3, Page 443-461, July 2025.
Abstract Why greet your family in Buryat rather than Russian? What does it matter how many times you fold the dough of a meat dumpling? How should one celebrate a holiday? In early twenty‐first‐century Buryatia, the Buryat Buddhist New Year, Sagaalgan, emerged as an important domain within which such small practices were reified as expressive of Buryat
Kathryn E. Graber
wiley   +1 more source

Symbolic value and the limits of good‐for theory

Noûs, Volume 59, Issue 2, Page 542-563, June 2025.
Abstract Good‐for theorists claim that to be valuable is to be good for someone, in the sense of being beneficial for them. Their opponents deny this, arguing that some things are good‐simpliciter: good independently of being good for anyone. In this article I argue in favor of good‐simpliciter.
Aaron Abma
wiley   +1 more source

LITURGICAL POLITICS IN THE POETRY OF PAUL CELAN*

German Life and Letters, Volume 78, Issue 2, Page 237-255, April 2025.
ABSTRACT Drawing on Celan's conception of poetry as a means of orienting the individual towards the ‘completely Other’, this paper emphasises poetry's ability to create community without reproducing exclusionary group identities. The analysis reveals a latent politics in Celan's poetry, emphasising its ability to gather disparate individuals into a ...
Lukas Hoffman
wiley   +1 more source

Notes of a commentator. 7. On Osip Mandelstam’s iconography [PDF]

Литературный факт, 2018
The article presents extracts from Elza Zander-Radlova’s letters written while she was working at the graphic portrait of Pallada Bogdanova-Belskaya and Osip Mandelstam in early autumn 1917.
Roman Timenchik
doaj   +1 more source