Results 41 to 50 of about 290,242 (293)

Estimating the radiative part of QED effects in systems with supercritical charge [PDF]

open access: yesEPJ Web of Conferences, 2019
The effective interaction of the electron magnetic moment anomaly with the Coulomb fileld of superheavy nuclei is investigated by taking into account its dynamical screening at small distances.
Roenko Artem, Sveshnikov Konstantin
doaj   +1 more source

Design of A-D-A-Type Organic Third-Order Nonlinear Optical Materials Based on Benzodithiophene: A DFT Study

open access: yesNanomaterials, 2022
The acceptor-donor-acceptor (A-D-A) type conjugated organic molecule has been widely applied in the organic optoelectronics field. A total of Nine compounds (1–9) were designed under the A-D-A framework, with the electron donor benzodithiophene as the ...
Pingping Gong   +5 more
doaj   +1 more source

Quantum replica approach to the under-screened Kondo model

open access: yes, 2004
We extend the Schwinger boson large N treatment of the underscreened Kondo model in a way that correctly captures the finite elastic phase shift in the singular Fermi liquid. The new feature of the approach, is the introduction of a flavor quantum number
A. A. Abrikosov   +11 more
core   +1 more source

ATF4‐mediated stress response as a therapeutic vulnerability in chordoma

open access: yesMolecular Oncology, EarlyView.
We screened 5 chordoma cell lines against 100+ inhibitors of epigenetic and metabolic pathways and kinases and identified halofuginone, a tRNA synthetase inhibitor. Mechanistically halofuginone induces an integrated stress response, with eIF2alpha phosphorylation, activation of ATF4 and its target genes CHOP, ASNS, INHBE leading to cell death ...
Lucia Cottone   +11 more
wiley   +1 more source

Bounds of Degree-Based Molecular Descriptors for Generalized F-sum Graphs

open access: yesDiscrete Dynamics in Nature and Society, 2021
A molecular descriptor is a mathematical measure that associates a molecular graph with some real numbers and predicts the various biological, chemical, and structural properties of the underlying molecular graph. Wiener (1947) and Trinjastic and Gutman (
Jia Bao Liu   +4 more
doaj   +1 more source

From Kondo Effect to Fermi Liquid

open access: yes, 2004
The Kondo effect has been playing an important role in strongly correlated electon systems. The important point is that the magnetic impurity in metals is a typical example of the Fermi liquid.
Abrikosov A. A.   +52 more
core   +1 more source

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

open access: yesMolecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon   +13 more
wiley   +1 more source

Low-energy electron collisions with tetrafluoroethene, C_2F_4 [PDF]

open access: yes, 2002
We report calculated cross sections for elastic and inelastic collisions of low-energy electrons with tetrafluoroethene, C_2F_4. The elastic cross section shows a number of resonance features, which we classify according to symmetry and analyze in ...
McKoy, V., Winstead, C.
core  

Resonant Tunneling and Charging Effects, a Path Integral Approach

open access: yes, 1995
Electron tunneling through small metallic islands with low capacitance is studied. The large charging energy in these systems is responsible for nonperturbative Coulomb blockade effects.
Fazio, Rosario   +3 more
core   +2 more sources

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

open access: yesFEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

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