Results 111 to 120 of about 5,195 (203)

Testing Parity with Atomic Radiative Capture of $\mu^-$

open access: yes, 2012
The next generation of "intensity frontier" facilities will bring a significant increase in the intensity of sub-relativistic beams of $\mu^-$. We show that the use of these beams in combination with thin targets of $Z\sim 30$ elements opens up the ...
D. Grechukhin   +7 more
core   +1 more source

Quantum Hacking: Experimental demonstration of time-shift attack against practical quantum key distribution systems

open access: yes, 2011
Quantum key distribution (QKD) systems can send signals over more than 100 km standard optical fiber and are widely believed to be secure. Here, we show experimentally for the first time a technologically feasible attack, namely the time-shift attack ...
B. Qi   +14 more
core   +1 more source

Activation of p53 signaling and regression of breast and prostate carcinoma cells by spirooxindole-benzimidazole small molecules

open access: yesFrontiers in Pharmacology
This study discusses the synthesis and use of a new library of spirooxindole-benzimidazole compounds as inhibitors of the signal transducer and activator of p53, a protein involved in regulating cell growth and cancer prevention.
Assem Barakat   +8 more
doaj   +1 more source

Unexpected Course of Reaction Between (1E,3E)-1,4-Dinitro-1,3-butadiene and N-Methyl Azomethine Ylide—A Comprehensive Experimental and Quantum-Chemical Study

open access: yesMolecules
In recent times, interest in the chemistry of conjugated nitrodienes is still significantly increasing. In particular, the application of these compounds as building blocks to obtain heterocycles is a popular object of research.
Mikołaj Sadowski, Karolina Kula
doaj   +1 more source

Light new physics in coherent neutrino-nucleus scattering experiments

open access: yes, 2015
Experiments aiming to detect coherent neutrino-nucleus scattering present opportunities to probe new light weakly-coupled states, such as sub-GeV mass dark matter, in several extensions of the Standard Model.
deNiverville, Patrick   +2 more
core   +1 more source

The 1st DDIExtraction-2011 Challenge Task: Extraction of Drug-Drug Interactions from Biomedical Texts [PDF]

open access: yes, 2011
Proceeding at: The 1st DDIExtraction-2011 Challenge Task: Extraction of Drug-Drug Interactions from Biomedical Texts. Took place September, 2011, in Huelva (Spain).We present an evaluation task designed to provide a framework for comparing different ...
Martínez Fernández, Paloma   +2 more
core   +2 more sources

Comments on "Note on varying speed of light theories"

open access: yes, 2007
In a recent note Ellis criticizes varying speed of light theories on the grounds of a number of foundational issues. His reflections provide us with an opportunity to clarify some fundamental matters pertaining to these ...
A. Albrecht   +36 more
core   +1 more source

A molecular electron density theory study of hydrogen bond catalysed polar Diels–Alder reactions of α,β-unsaturated carbonyl compounds

open access: yesTetrahedron Chem
The hydrogen bond (HB) catalysed Diels-Alder (DA) reactions of acrolein with cyclopentadiene have been investigated within the Molecular Electron Density Theory (MEDT) at the ωB97X-D/6-311G(d,p) computational level.
Luis R. Domingo   +3 more
doaj   +1 more source

Axio-electric effect

open access: yes, 2010
Using the relativistic Hartree-Fock approximation, we calculate the rates of atomic ionization by absorption of axions of the energies up to 100 keV and for an arbitrary value of the axion mass.
Derevianko, A.   +3 more
core   +1 more source

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