Results 51 to 60 of about 33,619 (222)

Getting just the Supersymmetric Standard Model at Intersecting Branes on the Z6-orientifold

open access: yes, 2004
In this paper, globally N=1 supersymmetric configurations of intersecting D6-branes on the Z6-orientifold are discussed, involving also fractional branes.
Boris Körs   +44 more
core   +4 more sources

Bianchi I solutions of effective quadratic gravity

open access: yes, 2012
It is believed that soon after the Planck time, Einstein's general relativity theory should be corrected to an effective quadratic theory. Numerical solutions for the anisotropic generalization of the Friedmann "flat" model $E^3$ for this effective ...
de Deus, Juliano A., Müller, Daniel
core   +1 more source

Realizations of Real Low-Dimensional Lie Algebras [PDF]

open access: yes, 2005
Using a new powerful technique based on the notion of megaideal, we construct a complete set of inequivalent realizations of real Lie algebras of dimension no greater than four in vector fields on a space of an arbitrary (finite) number of variables. Our
  +73 more
core   +1 more source

Spillover effects of unconventional monetary policy on capital markets in the shadow of the Eurozone: A sample of non-Eurozone countries

open access: yesReview of Economic Perspectives, 2020
The transmission mechanism has been dominated by direct monetary measures since the crisis of 2008. While the indirect impacts of the unconventional monetary instruments have not been fully explored yet.
Mészáros Mercédesz   +1 more
doaj   +1 more source

Impact of Covid-19 Pandemic on Financial Innovation, Cashless Society, and Cyber Risk

open access: yesECONOMICS, 2022
The global pandemic, as an unprecedented event in the recent past, has significantly changed the modern world. Numerous companies and individuals have faced various challenges that are still present.
Fabris Nikola
doaj   +1 more source

The Bethe ansatz approach for factorizable centrally extended S-matrices

open access: yes, 2007
We consider the Bethe ansatz solution of integrable models interacting through factorized $S$-matrices based on the central extention of the $\bf{su}(2|2)$ symmetry.
Andrei   +60 more
core   +1 more source

Compact Spectral Imaging: A Review of Miniaturized and Integrated Systems

open access: yesLaser &Photonics Reviews, EarlyView.
This review explores the rapid shift toward compact spectral imaging systems by examining four key design paradigms: Do‐It‐Yourself (DIY) platforms, freeform optics, filter‐on‐chip integration, and multifunctional metasurfaces. The discussion highlights critical applications in medicine, agriculture, and environmental monitoring, providing comparative ...
Sani Mukhtar, Amir Arbabi, Jaime Viegas
wiley   +1 more source

Examining the effect of credit on monetary policy with Markov regime switching: Evidence from Turkey

open access: yesEconomics and Business Review, 2022
This paper analyses the effect of credit on monetary policy responses for different regimes in Turkey. To do so, the Taylor rule augmented with the credit gap is estimated by using a Markov regime switching model from January 2006 to December 2019.
İlhan Ali
doaj   +1 more source

Polarization dependence of coherent phonon generation and detection in highly-aligned single-walled carbon nanotubes

open access: yes, 2010
We have investigated the polarization dependence of the generation and detection of radial breathing mode (RBM) coherent phonons (CP) in highly-aligned single-walled carbon nanotubes.
C. J. Stanton   +15 more
core   +1 more source

Time-Varying Housing Market Fluctuations: Evidence from the U.S. Housing Market

open access: yesReal Estate Management and Valuation, 2020
The objective of this paper is to investigate how the housing market and credit market factors contribute to US business and interest rate cycles in a time-varying transition probability modeling framework.
Ozdemir Dicle
doaj   +1 more source

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