Results 81 to 90 of about 138,138 (280)

Wick Theorem for General Initial States

, 2012
We present a compact and simplified proof of a generalized Wick theorem to calculate the Green's function of bosonic and fermionic systems in an arbitrary initial state.
A. L. Fetter, E. Runge, G. Nenciu, G. Stefanucci, L. V. Keldysh, R. van Leeuwen   +5 more
core   +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

A Soluble Model for Scattering and Decay in Quaternionic Quantum Mechanics II: Scattering

, 1993
In a previous paper, it was shown that a soluble model can be constructed for the description of a decaying system in analogy to the Lee-Friedrichs model of complex quantum theory.
Horwitz, L. P.
core   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

FEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira, Sílvia Arroz‐Madeira, Cláudio A. Franco, Sara Silva Pereira   +3 more
wiley   +1 more source

Pedagogical introduction to equilibrium Green's functions: condensed-matter examples with numerical implementations

Revista Brasileira de Ensino de Física
The Green's function method has applications in several fields in Physics, from classical differential equations to quantum many-body problems. In the quantum context, Green's functions are correlation functions, from which it is possible to extract ...
Mariana M. Odashima, Beatriz G. Prado, E. Vernek   +2 more
doaj   +1 more source

Kinetic energy driven superconductivity in doped cuprates

, 2003
Within the t-J model, the mechanism of superconductivity in doped cuprates is studied based on the partial charge-spin separation fermion-spin theory. It is shown that dressed holons interact occurring directly through the kinetic energy by exchanging ...
C.C. Tsuei, D. Poilblanc, D.A. Brawner, D.A. Wollman, D.H. Wu, D.J. Scalapino, D.N. Zubarev, E. Dagotto, Feng Yuan, Feng Yuan, G.B. Martins, G.B. Martins, G.B. Martins, G.M. Eliashberg, H. Ding, H. Ding, H.J.A. Molegraaf, J. Kondo, J.A. Martindale, M. Capone, M. Chiao, M.A. Kastner, N.C. Yeh, P. Chaudhari, P.W. Anderson, P.W. Anderson, P.W. Anderson, S. Sorella, S.F. Lee, S.M. Anlage, Shiping Feng, Shiping Feng, Shiping Feng, Shiping Feng, Shiping Feng, Shiping Feng, Shiping Feng, T. Jacobs, T.E. Mason, W.N. Hardy, W.O. Putikka, Y.J. Uemura, Y.J. Uemura, Z.X. Shen, Z.X. Shen   +44 more
core   +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

Diagrammatic expansion for positive density-response spectra: Application to the electron gas

, 2015
In a recent paper [Phys. Rev. B 90, 115134 (2014)] we put forward a diagrammatic expansion for the self-energy which guarantees the positivity of the spectral function. In this work we extend the theory to the density response function.
Pavlyukh, Y., Stefanucci, G., Uimonen, A. -M., van Leeuwen, R.   +3 more
core   +1 more source

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

FEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf, Nicholas F. Downing, Kaitlyn M. Mills, Samuel C. Metcalfe, Alexander E. Kritzer, Lindsey D. Mayo, Peter C. Hollenhorst   +6 more
wiley   +1 more source

The Green's functions for the Broadwell Model in a half space problem

Networks and Heterogeneous Media, 2006
We study an initial boundary value problem for the Broadwellmodel with a supersonic physical boundary. The Green's function for an initialvalue problem is constructed and its detailed pointwise structure is obtainedthrough the novel decompositions ...
Chiu-Ya Lan, Huey-Er Lin, Shih-Hsien Yu
doaj   +1 more source