Assessment of regional systolic and diastolic impairment of left ventricular function: a study with tissue doppler imaging on right ventricular pacing

published_or_final_versio

Assessment of regional systolic and diastolic impairment on left ventricular function: a study with tissue Doppler imaging on right ventricular pacing

published_or_final_versio

Efficient white and red light emission from GaN/tris-(8-hydroxyquinolato) aluminum/platinum(II) meso-tetrakis(pentafluorophenyl) porphyrin hybrid light-emitting diodes

A study based on the analysis of white and red light emitted from GaN light-emitting diodes was presented. The enhancement in the light emission efficiency was brought about by the employing of an aluminum based hybrid material, tris-(8-hydroxyquinolato) aluminum. The luminescence conversion (LC) efficiency of the LEDs were observed to be 3.3% for white LC-LED and 4.0% for red LC-LED, respectively.published_or_final_versio

Mitochondrial transfer of mesenchymal stem cells effectively protects corneal epithelial cells from mitochondrial damage

published_or_final_versio

Draft genome sequence of Pseudomonas syringae pathovar syringae strain FF5, causal agent of stem tip dieback disease on ornamental pear.

addresses: The Sainsbury Laboratory, John Innes Centre, Norwich, United Kingdom.notes: PMCID: PMC3393499types: Journal Article; Research Support, Non-U.S. Gov'tFree on Open AccessPseudomonas syringae FF5 causes stem tip dieback disease on ornamental pear (Pyrus calleryana). Its genome encodes a complete type III secretion system (T3SS) and HopAC1, HopM1, AvrE1, HopI1, HopAA1, HopJ1, HopAH2, HopAH1, HopAG1, and HopAZ1. Lacking detectable homologues of other T3SS effectors, it may encode novel, undiscovered effectors

Normal-State Spin Dynamics and Temperature-Dependent Spin Resonance Energy in an Optimally Doped Iron Arsenide Superconductor

The proximity of superconductivity and antiferromagnetism in the phase diagram of iron arsenides, the apparently weak electron-phonon coupling and the "resonance peak" in the superconducting spin excitation spectrum have fostered the hypothesis of magnetically mediated Cooper pairing. However, since most theories of superconductivity are based on a pairing boson of sufficient spectral weight in the normal state, detailed knowledge of the spin excitation spectrum above the superconducting transition temperature Tc is required to assess the viability of this hypothesis. Using inelastic neutron scattering we have studied the spin excitations in optimally doped BaFe1.85Co0.15As2 (Tc = 25 K) over a wide range of temperatures and energies. We present the results in absolute units and find that the normal state spectrum carries a weight comparable to underdoped cuprates. In contrast to cuprates, however, the spectrum agrees well with predictions of the theory of nearly antiferromagnetic metals, without complications arising from a pseudogap or competing incommensurate spin-modulated phases. We also show that the temperature evolution of the resonance energy follows the superconducting energy gap, as expected from conventional Fermi-liquid approaches. Our observations point to a surprisingly simple theoretical description of the spin dynamics in the iron arsenides and provide a solid foundation for models of magnetically mediated superconductivity.Comment: 8 pages, 4 figures, and an animatio

Implantable atrial defibrillator prevented atrial stunning and improved ventricular funciton after cardioversion from atrial fibrillation

published_or_final_versio

High incidence of atrial fibrillation after dual chamber pacemaker implantation - implication on the use of atrial defibrillation mode pacemakers

published_or_final_versio

QRS changes and QT intervals on 12-lead ECGs in patients receiving biventricular pacing for congestive heart failure

published_or_final_versio