BACKGROUND In the lower airways an association has been found between early phase reaction (EPR), late phase reaction (LPR), and bronchial hyperreactivity. However, this association has not been shown for the upper airways in nasal pollen challenge studies. A study was undertaken to determine whether the EPR, LPR, and nasal hyperreactivity are related in perennial allergic rhinitis. METHODS T...

In their well-known argument against the completeness of quantum theory, Einstein, Podolsky, and Rosen (EPR) made use of a state that strictly correlates the positions and momenta of two particles. We prove the existence and uniqueness of the EPR state as a normalized, positive linear functional of the Weyl algebra for two degrees of freedom. We then show that the EPR state maximally violates B...

Fullerene C60 derivatives covalently linked to a nitroxide radical are studied by Time Resolved EPR. The interaction between radical and triplet or singlet excitation, localized on the fullerene moiety, gives rise to spin polarization of the radical EPR signal. The quartet state of the Radical Triplet Pair (RTP) is also observed by EPR. Electron transfer involving the excited fullerene triplet ...

BACKGROUND In 1989, the National Asthma Education and Prevention Program (NAEPP) convened an expert panel to develop a report that would provide a general approach to the treatment of asthma. Expert Panel Report: Guidelines for the Diagnosis and Management of Asthma, or EPR-1, was published in 1991 and was subsequently updated with 2 other reports, EPR-2 in 1997 and the EPR update in 2002. Adva...

Electron paramagnetic resonance (EPR) is a well-known method for its sensitivity and accuracy in irradiated food detection. Our goal is to analyse the irradiated green coffee by EPR. Arabica beans and grounded coffee was electron beam irradiated up to 40 kGy. The EPR spectra and time dependence of signals were studied. Results were analysed with respect to find a possibility to identify irradia...

The separability of the continuous-variable EPR state can be tested with Hanbury-Brown and Twiss type interference. The second-order visibility of such interference can provide an experimental test of entanglement. It is shown that time-resolved interference leads to the Hong, Ou and Mandel deep, that provides a signature of quantum non-separability for pure and mixed EPR states. A Hanbury-Brow...

It is believed that quantum communication is not possible with a pure ensemble of states because quantum entropy of pure state is zero. This is indeed possible due to geometric consequence of entanglement. Quantum entropy is the measure of information content of quantum state [1,2]. Only for mixed state quantum entropy is non-zero. Therefore, one may conclude that same pure ensemble cannot be u...

The intensities of saturation-transfer EPR (ST-EPR) spectra from nitroxyl spin labels have proved a sensitive means for studying slow exchange processes (both Heisenberg spin exchange and physical/chemical exchange) and weak interactions with paramagnetic ions, via the dependence on the effective spin-lattice relaxation rate (D. Marsh, Appl. Magn. Reson. 3, 53, 1992). The dependences of the sec...