Results 61 to 70 of about 134,857,117 (217)

Gaussian resolutions for equilibrium density matrices [PDF]

open access: yes, 2003
The Gaussian wavepacket propagation method of Hellsing et al. [Chem. Phys. Lett. 122 (1985) 303] for the computation of equilibrium density matrices ρ T is revisited and modified.
P. Frantsuzov   +2 more
semanticscholar   +1 more source

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

open access: yesChemCatChem, 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   +5 more
wiley   +1 more source

Holomorphic field theories and higher algebra

open access: yesBulletin 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

Molecular dataset for: The tribal placement of Urocorthylus Petrov, Mandelshtam & Beaver, with a description of the male of U. hirtellus Petrov et al., and notes on its biology (Coleoptera: Curculionidae: Scolytinae)

open access: yes, 2023
<p>Sequence sources, alignments and phylogenetic trees accompanying the research paper "The tribal placement of <em>Urocorthylus </em>Petrov, Mandelshtam & Beaver, with a description of the male of <em>U. hirtellus</em&
Johnson, Andrew J   +4 more
core   +1 more source

Comparison of Mandelshtam's Conditions with Convergence Conditions for Iterative Procedures in the Analysis of Complex Dynamic Systems by Means of Partial Models

open access: yesEngineering Transactions, 1992
The convergence conditions for iterative procedures in the analysis of dynamic systems with the use of partial models are compared with Mandelshtam's conditions (uncoupling of vibrations of partial models). Both basic iteration procedures are discussed.
T.L. Stańczyk
doaj  

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

open access: yesJournal 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   +5 more
wiley   +1 more source

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

open access: yesThe 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

Hapalogenius tuberculifer Mandelshtam 2006

open access: yes
7. Hapalogenius tuberculifer Mandelshtam, 2006 Nomen nudum Distribution in South Africa: Eastern Cape Specimens examined: Mbotje Forest, Eastern Cape, South Africa, 31°27'S, 29°43'E, November 2003, Leg. M. Muller & R. Burger, Det. Mandelshtam [DMNH, holotype]. Notes: Nomen nudum.
Nel, Wilma J.   +8 more
openaire   +1 more source

Symbolic value and the limits of good‐for theory

open access: yesNoûs, 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

FIGURE 3 in Dryocoetiops krivetsae sp. n. (Coleoptera: Curculionidae: Scolytinae: Dryocoetini), the northernmost species of the genus: conflicts between molecular and morphological data in the tribe Dryocoetini

open access: yes, 2023
FIGURE 3. The maximum likelihood phylogenetic tree of the tribe Dryocoetini based on the 406 bp 28S rRNA region. The GenBank or BOLD accession numbers are indicated. The new species Dryocoetiops krivetsae is highlighted in bold.
Kerchev, Ivan A.   +3 more
core   +1 more source

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