Results 1 to 10 of about 32,334 (167)

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

open access: yesPhysical Review B 83, 195411 (2011), 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   +2 more sources

Quantum Affine Algebras and Universal $R$-Matrix with Spectral Parameter

open access: yes, 1993
Using the previous obtained universal $R$-matrix for the quantized nontwisted affine Lie algebras $U_q(A_1^{(1)})$ and $U_q(A_2^{(1)})$, we determine the explicitly spectral-dependent universal $R$-matrix for the corresponding quantum Lie algebras $U_q ...
B. Davies   +11 more
core   +3 more sources

Three-dimensional modeling of the asymmetric blast wave from the 2006 outburst of RS Ophiuchi: Early X-ray emission

open access: yes, 2008
Chandra/HETG observations of the recurrent nova RS Ophiuchi at day 13.9 of its 2006 outburst reveal a spectrum covering a large range in plasma temperature and characterized by asymmetric and blue-shifted emission lines.
Anupama   +48 more
core   +1 more source

Safety and intestinal microbiota modulation by the exopolysaccharide-producing strains Bifidobacterium animalis IPLA R1 and Bifidobacterium longum IPLA E44 orally administered to Wistar rats [PDF]

open access: yesInternational Journal of Food Microbiology, 2011
Bifidobacterium animalis subsp. lactis IPLA R1 and Bifidobacterium longum IPLA E44 strains were tested for their safety and ability to modulate the intestinal microbiota in vivo. Chemically simulated gastrointestinal digestion showed considerably lower survival of E44 than R1 strain, the first microorganism also being more sensitive to refrigerated ...
Celestino González   +9 more
openaire   +4 more sources

Piezoelectric resonance in Rochelle salt: the contribution of diagonal strains

open access: yes, 2012
Within the framework of two-sublattice Mitsui model with taking into account the shear strain $\varepsilon_4$ and the diagonal strains $\varepsilon_2$ and $\varepsilon_3$, a dynamic dielectric response of Rochelle salt X-cuts is considered ...
A.P. Moina   +19 more
core   +1 more source

$U_q[\hat{sl(2|1)}]$ Vertex Operators, Screen Currents and Correlation Functions at Arbitrary Level [PDF]

open access: yes, 1999
Bosonized q-vertex operators related to the 4-dimensional evaluation modules of the quantum affine superalgebra $U_q[\hat{sl(2|1)}]$ are constructed for arbitrary level $k=\alpha$, where $\alpha\neq 0, -1$ is a complex parameter appearing in the 4 ...
Bougourzi A. H.   +11 more
core   +2 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

The impact of the Russia–Ukraine war on stock prices, profits and perceptions in the food supply chain

open access: yesAgribusiness, EarlyView.
Abstract The Russian invasion of Ukraine in February 2022 had profound consequences for the global economy. As both countries are major commodity exporters, the food value chain was also affected. This study investigates the impact of the invasion on stock prices, profitability and sentiments of agribusinesses along the food supply chain by using an ...
Julia Höhler   +2 more
wiley   +1 more source

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

Gag Gifting: The Joke and the Poke

open access: yesPsychology &Marketing, EarlyView.
ABSTRACT Gag gifting is a ritual involving a gift along with a joke at the expense of the recipient (i.e., a “poke”). This study shows that gag gifting occurs frequently, at various occasions. Findings from a qualitative study illustrate the way gag gifts are purchased or handmade into unique or personalized items.
Robert M. Schindler   +2 more
wiley   +1 more source

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