We address the problem of collective motion across a barrier like encountered in fission. A formula for the quantal decay rate is derived which bases on a recently developed variational approach for functional integrals. This formula can be applied to low temperatures that have not been accessible within the former PSPA type approach. To account for damping of collective motion one particle Gre...

The relationship between plasma propranolol concentration and relief of essential tremor was examined in 11 patients during treatment with oral racemic propranolol in doses of 30 to 640 mg/day. Although propranolol decreased tremor in all 11 patients, the degree of improvement varied widely in individuals (mean 51%, range 25--90%), and was not related directly occurred at plasma propranolol con...

Reverberation is one of the most fundamental phenomena that describes acoustics an enclosure. Due to modal behaviour room, measured Schroeder decay functions may exhibit double or multiple slopes at wavelengths comparable dimensions room. In such a case evaluation reverberation parameters (e.g. T20,T30) according standardized measurement procedures [1], [2], [3] becomes erroneous. To overcome t...

in this study adsorption of 1-chloro-4-nitrobenzene on single walled carbon nanotubes has been investigated.  the effect of contact time, ph, initial concentration of 1-chloro-4-nitrobenzene, adsorbent dosage and temperature on its adsorption has been carried out in order to find optimum adsorption conditions. adsorption isotherms and related constants were also determined. results showed that ...

The ability of various DNA damaging agents to induce asynchronous replication of polyoma DNA (APR) in rat cells carrying integrated copies of these DNA sequences may provide a useful model for understanding mechanisms of gene amplification. The present study has explored in detail the ability of UV irradiation to induce APR in the polyoma transformed rat fibroblast cell line H3. We have found t...

In this research we described the effective Hamiltonian theory and applied this theory to the calculation of current-current (Q1,2) and QCD penguin (Q3,…,6) c quark decay rates. We calculated the decay rates of semileptonic and hadronic of charm quark in the effective Hamiltonian theory. We investigated the decay rates of D meson decays according to Spectator Quark Model (SQM) for the calculati...

Chytridiomycosis, caused by the fungus Batrachochytrium dendrobatidis (Bd), is a widespread disease of amphibians responsible for population declines and extinctions. Some bacteria from amphibians' skins produce antimicrobial substances active against Bd. Supplementing populations of these cutaneous antifungal bacteria might help manage chytridiomycosis in wild amphibians. However, the activity...

We discuss the feasibility of the observation of the signal from B c mesons in the ATLAS experiment at the LHC. In particular, we address the decay mode B c →J/ψπ followed by the leptonic decay J/ψ→µ + µ − , which should permit an accurate measurement of the B c mass. We performed a Monte Carlo study of the signal and background concluding that a precision of ≈ 1 MeV for the B c mass could be a...

Numerical computations of transport coefficients at low temperatures are presented for shapes typically encountered in nuclear fission. The influence of quantum effects of the nucleonic degrees of freedom is examined, with pair correlations included. Consequences for global collective motion are studied for the case of the decay rate. The range of temperatures is specified above which this moti...