The strong-leg S=1/2 Heisenberg spin ladder system (C(7)H(10)N)(2)CuBr(4) is investigated using density matrix renormalization group calculations, inelastic neutron scattering, and bulk magnetothermodynamic measurements. Measurements showed qualitative differences compared to the strong-rung case. A long-lived two-triplon bound state is confirmed to persist across most of the Brillouin zone in ...

A rcccntly published semi-implicit Rung+Kulta algorithm has been extended to compute parameter sensitivities in dynamical systems. The decomposed direct method (DDM) of sensitivity analysis results in a general and compact FORTRAN program, well-suited even for small computers. The straightforward DDM provides more accurate sensitivities than does the numerically efficient, but more involved Gre...

Multiphase voltage regulator modules (VRMs) for microprocessor power delivery with coupled output inductors are discussed. Strong coupling is shown to be feasible and effective at reducing ripple if the correct magnetic topology is used. For more than two phases, this can be a “ladder” core with windings around each rung. Typical ripple reduction is better than a factor of six with no effect on...

In the title compound, C18H17BrO2S, the dihedral angle between the methyl-phenyl ring and the mean plane of the benzo-furan rung system is 87.0 (2)°. In the crystal, mol-ecules related by inversion are paired into dimers via C-H⋯O and C-H⋯π inter-actions. These dimers are further linked by C-H⋯O hydrogen bonds and π-π inter-actions between the benzene and furan rings of neighbouring mol-ecules ...

Introduction The availability of adequate number of health professionals to manage health programmes alone may not necessarily lead to their successful implementation. The competencies and commitment of these professionals also need to be ensured. One of the biggest challenges, in this regard, has been poor capacity building at every rung of health care. The situation is further worsened by a s...

A method is proposed to improve the accuracy of approximate techniques for correlated electrons that use reduced Hilbert spaces. As a rst step, the method involves a change of basis that incorporates exactly part of the short distance interactions. A Hilbert space truncation performed in the new variables follows. Using the rung basis the method is successfully tested on 2-leg spin ladders, inc...