Results 41 to 50 of about 2,375,747 (287)

Pion-photon and photon-pion transition form factors in light-cone formalism

, 2003
We derive the minimal Fock-state expansions of the pion and the photon wave functions in light-cone formalism, then we calculate the pion-photon and the photon-pion transition form factors of $\gamma ^{\ast}\pi ^{0}\to \gamma $ and $\gamma ^{\ast}\gamma \
A.V. Radyushkin, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-Q. Ma, B.-W. Xiao, Bo-Qiang Ma, Bo-Wen Xiao, C. Caso, C.-W. Hwang, E. Wigner, E.B. Dally, F. Schlumpf, F. Schlumpf, F.-G. Cao, F.-G. Cao, G. West, G.P. Lepage, H.-J. Behrend, H.J. Melosh, H.J. Weber, H.M. Choi, J. Gronberg, L.A. Kondratyuk, M. Sawicki, M.V. Terent’ev, P. Kroll, P.L. Chung, P.L. Chung, P.L. Chung, S.D. Drell, S.J. Brodsky, S.J. Brodsky, S.J. Brodsky, S.J. Brodsky, T. Huang, V.A. Karmanov, W. Jaus, W. Jaus   +44 more
core   +1 more source

Offensive alliances in cubic graphs [PDF]

, 2006
An offensive alliance in a graph $\Gamma=(V,E)$ is a set of vertices $S\subset V$ where for every vertex $v$ in its boundary it holds that the majority of vertices in $v$'s closed neighborhood are in $S$.
Rodriguez, J. A., Sigarreta, J. M.
core   +3 more sources

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

FEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Gamma(*)Gamma(*) reaction at high energies

, 2000
The energy available for gamma(*)gamma(*) physics at LEP2 is opening a new window on the study of diffractive phenomena, both non-perturbative and perturbative.
A Donnachie, Abbiendi G (OPAL Collaboration), Abbiendi G (OPAL Collaboration), Acciari M (L3 Collaboration), Anisovich V V, Ball R D, Boonekamp M, Donnachie A, Donnachie A, Donnachie A, Donnachie A, Donnachie A, Donnachie A, Engel R, Forshaw J R, Golec-Biernat K, Hautmann F, Hill C T, McDermott M, Nachtmann O, Rueter M, S Söldner-Rembold, Witten E   +22 more
core   +3 more sources

Prolonged Survival following Repetitive Stereotactic Radiosurgery in a Patient with Intracranial Metastatic Renal Cell Carcinoma

Case Reports in Neurological Medicine, 2015
Patients with metastatic renal cell carcinoma (RCC) to the brain have a very poor prognosis of three months if left untreated. SRS is an effective treatment modality in numerous patients.
Ethan A. Ferrel, Andrew T. Roehrig, Wayne T. Lamoreaux, Alexander R. Mackay, Robert K. Fairbanks, Jason A. Call, Jonathan D. Carlson, Benjamin C. Ling, John J. Demakas, Barton S. Cooke, Aaron Wagner, Christopher M. Lee   +11 more
doaj   +1 more source

Benchmarking the Retrieval of Biomass in Boreal Forests Using P-Band SAR Backscatter with Multi-Temporal C- and L-Band Observations

Remote Sensing, 2019
The planned launch of a spaceborne P-band radar mission and the availability of C- and L-band data from several spaceborne missions suggest investigating the complementarity of C-, L-, and P-band backscatter with respect to the retrieval of forest above ...
Oliver Cartus, Maurizio Santoro, Urs Wegmüller, Björn Rommen   +3 more
doaj   +1 more source

Function‐driven design of a surrogate interleukin‐2 receptor ligand

FEBS Letters, EarlyView.
Interleukin (IL)‐2 signaling can be achieved and precisely fine‐tuned through the affinity, distance, and orientation of the heterodimeric receptors with their ligands. We designed a biased IL‐2 surrogate ligand that selectively promotes effector T and natural killer cell activation and differentiation. Interleukin (IL) receptors play a pivotal role in
Ziwei Tang, Zelin Cheng, Teng Li, Fulian Wang, Liangminghui Zhang, Xiuxiu He, Lili Liu, Wei Wang, Aibin Liang, Guang Yang   +9 more
wiley   +1 more source

Long Distance Contribution to $s \to d\gamma$ and Implications for $\Omega^-\to \Xi ^-\gamma, B_s \to B_d^*\gamma$ and $b \to s\gamma$

, 1995
We estimate the long distance (LD) contribution to the magnetic part of the $s \to d\gamma$ transition using the Vector Meson Dominance approximation $(V=\rho,\omega,\psi_i)$.
A. Ioannissian, A.J. Buras, B.A. Campbell, E. Golowich, E. Paul, F. Gilman, G. Burdman, G. Eilam, G. Ricciardi, I.F. Albuquerque, J. Lach, J. Soares, J.J. Aubert, J.L. Hewett, J.O. Eeg, K. Terasaki, L. Bergström, L. Montanet, M. Baure, M. McGuigan, M.A. Shifman, M.S. Alam, N.G. Deshpande, P. Singer, P. Singer, P. Zenczykowski, R. Ammar, R. R. Mendel, R. Safadi, R.L. Anderson, S. Bertolini, S. Pokorski, S.G. Kamath, S.L. Glashow, Ya.I. Kogan   +34 more
core   +1 more source

New tools in percutaneous minimally invasive chronic subdural hematomas evacuation

Interdisciplinary Neurosurgery, 2020
Background: Incidence of chronic subdural hematomas (cSDH) is expected to progressive rise in the next decades. There is no univocal indication of the approach to be used.
Giuseppe Emmanuele Umana, Stefano Chiriatti, Elena Roca, Gianluca Scalia, Marco Fricia, Nicola Alberio, Giovanni Federico Nicoletti, Salvatore Cicero, Angelo Spitaleri   +8 more
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

FEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo, Carolin Ector, Hanspeter Herzel   +2 more
wiley   +1 more source