Results 71 to 80 of about 45,469 (189)

Functional evolution of quantum cylindrical waves [PDF]

open access: yes, 2006
Kucha{\v{r}} showed that the quantum dynamics of (1 polarization) cylindrical wave solutions to vacuum general relativity is determined by that of a free axially-symmetric scalar field along arbitrary axially-symmetric foliations of a fixed flat 2+1 ...
Allen M   +13 more
core   +2 more sources

Nonlocal Mechanical Metamaterials Enabling Soliton Mode Conversion

open access: yesSmall Structures, Volume 6, Issue 12, December 2025.
A mechanical metamaterial (MM) system with nonlocal interactions is presented, where elastic (nontopological) solitons encountering a boundary defect undergo mode conversion and generate backward‐propagating topological solitons. This finding reveals a new mechanism for soliton dynamics in nonlocal systems, offering insights into energy transport, wave
Liang Bai   +4 more
wiley   +1 more source

Analysis of the payment discipline of trade-licence holders regarding social insurance contributions in the Slovak Republic

open access: yesFinancial Internet Quarterly
Guarantee of autonomy and stability of economic subjects from the government can be considered an important gauge of state security. Due to the financial, migration and energy crisis, we can observe a notable increase of social problems, which gives more
Hajdúková Tatiana, Lukáčiková Edita
doaj   +1 more source

Quantum Hamilton-Jacobi Approach to Two Dimensional Singular Oscillator

open access: yes, 2008
We have obtained the solutions of two dimensional singular oscillator which is known as the quantum Calogero-Sutherland model both in cartesian and parabolic coordinates within the framework of quantum Hamilton Jacobi formalism.
Demircioglu, Bengu, Yesiltas, Ozlem
core   +1 more source

Expansion of bound state energies in powers of m/M and (1-m/M) [PDF]

open access: yes, 2001
Elaborating on a previous letter, we use a new approach to compute energy levels of a non-relativistic bound-state of two constituents, with masses m and M, by systematic expansions - one in powers of m/M and another in powers of (1-m/M).
A. Czarnecki   +26 more
core   +2 more sources

Development of an Electromagnetic‐Thermal Circuit Model for Single‐Phase Three‐Limb Transformers

open access: yesHigh Voltage, Volume 10, Issue 6, Page 1545-1557, December 2025.
ABSTRACT Analysing the heat states of transformers under DC bias requires careful consideration of their own structural and material characteristics. Although the 3D finite element method (FEM) is a reliable way of simulating all the details of transformers, it may be time‐consuming or have encountered convergence difficulties due to the complex ...
Yidan Hu   +5 more
wiley   +1 more source

Luigi Spaventa in Consob (Luigi Spaventa at Consob)

open access: yesMoneta e Credito, 2013
L'articolo fornisce una descrizione dettagliata del lascito di Luigi Spaventa alla testa della Consob, l'autorità di vigilanza italiana sul mercato mobiliare e borsistico.Così facendo, l'articolo tratta della recente storia della regolamentazione dei ...
Filippo Cavazzuti
doaj   +1 more source

Azobenzene‐Based Glycomacrocycles: Synthesis, Photoisomerization, and Photomodulation of Liquid Crystal Helical Pitch with Helix Inversion

open access: yesChemistry – A European Journal, Volume 31, Issue 64, November 17, 2025.
Macrocyclic glycoazobenzenes: Four new azobenzene‐functionalized glycomacrolactones bearing different substituents on the glucopyranoside ring have been synthesized. These photoswitchable chiral macrocycles behave as chiral dopants of NLCs, with an amplification of helix upon E to Z photoisomerization and enforcement of HTP at Z‐rich state.
Gaoyu Li   +5 more
wiley   +1 more source

The impact of government accounting supervision on insider trading in China

open access: yesBorsa Istanbul Review
This study examines how government accounting supervision influences insider trading in Chinese firms. Using data from 2007 to 2024 and a staggered difference-in-differences model, we find that accounting supervision significantly restrains insider ...
Lin Zhang, Fan Yong
doaj   +1 more source

Could a Weak Coupling Massless SU(5) Theory Underly the Standard Model S-Matrix?

open access: yes, 2010
The unitary Critical Pomeron connects to a unique massless left-handed SU(5) theory that, remarkably, might provide an unconventional underlying unification for the Standard Model.
White, Alan. R.
core   +1 more source

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