Results 51 to 60 of about 24,860 (159)

Razionamento del credito e dimensioni di impresa (Credit rationing and firm size)

Moneta e Credito, 2012
This paper examines the likelihood of credit rationing faced by firms of dif­ferent size. Cantrary to common thought, several recent contributions on this topic argue that, when rationing credit, size alone is not a sufficient con­dition for ...
Giorgio Calcagnini, Donato Iacobucci, Davide Ticchi   +2 more
doaj   +1 more source

Isoscalar meson spectroscopy from lattice QCD

, 2011
We extract to high statistical precision an excited spectrum of single-particle isoscalar mesons using lattice QCD, including states of high spin and, for the first time, light exotic JPC isoscalars.
Dudek, Jozef J., Edwards, Robert G., Joo, Balint, Peardon, Michael J., Richards, David G., Thomas, Christopher E.   +5 more
core   +1 more source

Phosphatidylinositol transfer protein α binds microcolins in its open conformation

Acta Crystallographica Section D, Volume 82, Issue 3, Page 246-252, March 2026.
We report the crystal structure of human PITPα in complex with microcolin H at 2.0 Å resolution, revealing that microcolins bind covalently within the lipid‐binding cavity and stabilize PITPα in an open conformation with a markedly enlarged cavity relative to the lipid‐bound state.
Andrea Eisenreichova, Martin Klima, Tamas Balla, Evzen Boura   +3 more
wiley   +1 more source

Symmetry breaking and restoration for interacting scalar and gauge fields in Lifshitz type theories

, 2012
We consider the one-loop effective potential at zero and finite temperature in field theories with anisotropic space-time scaling, with critical exponent $z=2$, including both scalar and gauge fields.
Aitchison, Alexandre, Alexandre, Alexandre, Alexandre, Alexandre, Alexandre, Alexandre, Anagnostopoulos, Anselmi, Anselmi, Anselmi, Brandenberger, Brandenberger, Cai, Charmousis, Chen, Coleman, D. Metaxas, Dhar, Dijkgraaf, Dolan, Eune, Eune, Farias, Fukuda, Horava, Horava, Horava, Horava, Iengo, Jackiw, Jamil, K. Farakos, Kehagias, Kiritsis, Koutsoumbas, Koutsoumbas, Metaxas, Metaxas, Metaxas, Mukohyama, Mukohyama, Nacir, Nielsen, Orlando, Soo, Thompson, Visser, Wetterich   +49 more
core   +1 more source

On Models of New Physics for the Tevatron Top A_FB [PDF]

, 2011
CDF has observed a top forward-backward asymmetry discrepant with the Standard Model prediction at 3.4 \sigma. We analyze models that could generate the asymmetry, including flavor-violating W's, horizontal Z'_Hs, triplet and sextet diquarks, and ...
Gresham, Moira I., Kim, Ian-Woo, Zurek, Kathryn M.   +2 more
core   +3 more sources

Validated ligand geometries for macromolecular refinement restraints and molecular‐mechanics force fields

Acta Crystallographica Section D, Volume 82, Issue 3, Page 216-226, March 2026.
A database of validated ligand restraints computed using various levels of quantum mechanics is generated and distributed with Phenix to streamline and improve macromolecular refinement results.In macromolecular structure refinement, the low observation‐to‐parameter ratio and the lack of high‐resolution data are countered by using a priori information ...
Nigel W. Moriarty, David A. Case, Dorothee Liebschner, Paul D. Adams   +3 more
wiley   +1 more source

Deep‐learning methods for contrast enhancement and artifact reduction in cryo‐electron tomography: a systematic analysis of the state of the art and proposed improvements

Acta Crystallographica Section D, Volume 82, Issue 3, Page 168-186, March 2026.
Cryo‐ET is a rapidly emerging technique that enables 3D visualization of complex biological structures, but present limits on signal‐to‐noise ratio and reconstruction quality pose challenges for downstream analysis. Here, we present a systematic analysis of state‐of‐the‐art deep‐learning methods for contrast enhancement and propose improvements in ...
Henry N. Jones, Aneesh Deshmukh, Kanupriya Pande   +2 more
wiley   +1 more source

$SL(2,R)$ symmetry and quasi-normal modes in the BTZ black hole

, 2011
With the help of two new intrinsic tensor fields associated with the $SL(2,R)$ quadratic Casimir of Killing fields, we uncover the $SL(2,R)$ symmetry satisfied by the solutions to the equations of motion for various fields in the BTZ black hole in a ...
A Castro, B Chen, B Chen, D Anninos, D Birmingham, GT Horowitz, Hongbao Zhang, I Sachs, JM Maldacena, M Guica, RM Wald, V Balasubramanian, Y Choquet-Bruhat   +12 more
core   +1 more source

Herding and Contrarian Behavior in Financial Markets: An Experimental Analysis [PDF]

, 2009
We are the first paper to analyse and confirm the existence and extent of rational informational herding and rational informational contrarianism in a financial market experiment, and to compare and contrast these with the equivalent irrational phenomena.
Park, A., Sgroi, Daniel
core   +3 more sources

Decision‐making in serial crystallography: a simple test to quickly determine whether sufficient data have been collected

Acta Crystallographica Section D, Volume 82, Issue 3, Page 227-236, March 2026.
We describe a simple test to determine whether sufficient data have been collected during a serial crystallographic experiment, and its incorporation into the autoprocessing pipeline at the T‐REXX endstation on beamline P14 at the PETRA III synchrotron.In standard rotational data collection for macromolecular crystallography, data are normally ...
David von Stetten, Arwen R. Pearson
wiley   +1 more source