We investigate the phase diagrams of RMn(2)O(5) via a first-principles effective-Hamiltonian method. We are able to reproduce the most important features of the complicated magnetic and ferroelectric phase transitions. The calculated polarization as a function of temperature agrees very well with experiments. The dielectric-constant step at the commensurate-to-incommensurate magnetic phase tran...

We experimentally investigate the recoil dynamics of a colloidal probe particle after shearing it with constant velocity through viscoelastic fluid. The displays two distinct timescales which are in excellent agreement microscopic model built on being linked to bath particles by harmonic springs. This yields analytical expressions reproduce all experimental protocols, including additional waiti...

We examine the fission barriers, mass parameters and spontaneous fission half lives of fermium isotopes within the framework of macroscopic-microscopic model with a δ-pairing interaction. Four different macroscopic models are applied and studied. The results are compared to experimental data and to the corresponding monopole pairing ones. The half lives obtained in the δ-pairing model are compa...

Pre-neutron fragment-yield distributions are calculated for the U(n, f) and Pu(n, f) reactions using a time-dependent fully microscopic approach. These yields are calculated as a function of incident neutron energy from thermal to 5 MeV. We show that our calculations are in good agreement with experimental results, and competitive in accuracy with more phenomenological approaches. Further impro...

We investigate the phase diagrams of RMn2O5 via a first-principles effective-Hamiltonian method. We are able to reproduce the most important features of the complicated magnetic and ferroelectric phase transitions. The calculated polarization as a function of temperature agrees very well with experiments. The dielectric-constant step at the commensurate-to -incommensurate magnetic phase transit...

Two cultures of leukemic cells were established from Gross virus-induced rat thymomas and grown in vitro for 29 and 36 months. A constant and predictable virus yield was obtained that resulted in 100% induction of leukemia when cell-free materials from these cultures were assayed in susceptible animals. Electron microscopic studies of these cultures confirmed the abundance of virus and permitte...

For the first time, the Relativistic Mean Field (RMF) model is applied to the shears band recently observed in 84 37Rb. Signals of the appearance of the shears mechanism, such as smooth decreases of the shears angle and of the B(M1)/B(E2) ratio with keeping the nearly constant tilt angle, are well reproduced. Thus it is shown that the microscopic RMF model can nicely describe the shears band in...

It is shown that the constant-temperature behavior of nuclei in the superfluid regime leads to an energy-sorting process if two nuclei are in thermal contact, as is the case in the fission process. This effect explains why an increase of the initial excitation energy leads an increase of the number of emitted neutrons from the heavy fission fragment, only. The observed essentially complete ener...

We examine the connection between three dimensional gravity with negative cosmological constant and two-dimensional CFT via the Chern-Simons formulation. A set of generalized spectral flow transformations are shown to yield new sectors of solutions. One implication is that the microscopic calculation of the entropy of the Bañados-Teitelboim-Zanelli (BTZ) black hole is corrected by a multiplicat...