Archive

This experimental study examined nucleation of superconductivity at the surface of a single-crystal yttrium hexaboride (YB6) in a tilted dc magnetic field. The authors measured Hc3 on each side of the sample as a function of the angle between the field and the surface. They report Hc3/Hc2 ≈ 1.28 for a perpendicular…

This paper discusses the Czjzek model for distributions of electric field gradient (EFG) tensors in disordered solids and highlights its underlying assumptions and characteristics. It then introduces an extended model that combines a defined local EFG environment with an adjustable Gaussian (Czjzek) noise term to…

This study reports slow relaxation of magnetoresistance in selectively doped p-GaAs-AlGaAs structures following application of a magnetic field. The authors emphasize efforts to rule out temperature fluctuation artifacts and state that the main relaxation features remain. They interpret the phenomenon using a…

This laboratory/engineering study examined electric-field-induced structuring in clay-oil suspensions using WAXS, SEM, rheometry, and electrical measurements. Particle orientation was quantified via an orientational order parameter derived from diffraction peak azimuthal changes, and chain versus column formation was…

This engineering-focused study measured ultrasonic propagation velocity in hydrocarbon-based magnetic and magnetorheological fluids under an external magnetic field. The authors report that clustering structures formed in the fluids influence ultrasonic propagation velocity, with observed hysteresis and anisotropy.…

This small clinical case series evaluated TOPAZ radiofrequency coblation microtenotomy for recalcitrant plantar fasciitis in 14 patients. The abstract reports improved AOFAS hindfoot scores at 3 and 6 months and improvements in several SF-36 domains, with most patients reporting good-to-excellent satisfaction. The…

This engineering/materials study synthesized nanocrystalline hydroxyapatite bioceramic powder using microwave radiation and then characterized the resulting material. The authors report highly crystalline HAp nanopowder with nanoscale size, mixed morphology, and elemental composition consistent with the HAp phase.…

This SCENIHR Opinion updates earlier 2009 SCENIHR documents on EMF health effects and research needs, focusing on new information and remaining knowledge gaps. The abstract primarily characterizes sources and patterns of exposure across static, ELF, IF, and RF fields in both public and occupational settings. It notes…

This monocentric study evaluated outpatient feasibility and outcomes of radiofrequency transurethral needle ablation (TUNA) for benign prostatic hyperplasia in patients who did not respond to medical therapy. In the outpatient subgroup, urinary symptom scores, quality of life, flow measures, and residual urine…

This methods study evaluated an MRI-based surface distance measurements (SDM) approach for localizing Broca's area for TMS coil placement without external tracking devices. Coil positioning using SDM was compared with an advanced frameless stereotaxic navigation system. The reported mean difference between methods…

This study reports solid-state NMR (13C and 15N MAS) measurements on CuCN·N2H4 to extract copper quadrupole coupling constants and characterize cyanide ordering. Ab initio calculations were used to determine electric field gradient and chemical shielding tensor orientations needed for spectral analysis. The authors…

This paper reports on pulsed radiofrequency treatment as an interventional approach for pain due to chronic benign pancreatitis. The authors describe their experience in two patients and characterize the technique as minimally neurodestructive and potentially able to reduce pain perception by altering nerve…

This engineering-focused study examines failure of needle-shaped specimens exposed to very high electric fields in field-ion microscopy. The authors report experiments indicating breakdown may be initiated by nanoparticles detached from a point anode. They propose a mechanism in which expanding cathode plasma…

This paper reports four experiments examining how a ringing cell phone affects cognitive performance in laboratory tasks and a college classroom lecture. In the lab, auditory conditions (including a standard cell phone ring) produced slower responses than silence, with slower recovery in the ring and song conditions.…

This engineering study measures and simulates screening current induced magnetic fields (SCF) in a Bi2223-tape HTS insert used in an LTS/HTS NMR magnet at 77 K. SCF was induced by the insert self-field, an external 5-T background magnet, and their combination, and axial field distributions and temporal variations…

This paper studies the spin-glass transition in a magnetic field using a diluted one-dimensional long-range Ising model with distance-dependent bond probability. The authors report evidence for a spin-glass transition in a magnetic field both within and beyond the mean-field regime. They also report such evidence for…

This paper proposes metallic nanowires as complementary structures to metallic nanogaps for enhancing magnetic fields. It reports magnetic field enhancement up to a factor of 300 and presents a surface-impedance-based analytic theory that is numerically confirmed. The authors also report that, in the sub-skin-depth…

This theoretical paper analyzes vortex solutions in two-component superconductors within a U(1) x U(1) Ginzburg-Landau framework. It reports that exponentially screened magnetic fields are only found in special cases, while most parameter choices yield delocalized magnetic fields with slowly decaying tails. It also…

This Physical Review Letters paper reports magnetotransport measurements on a gated LaAlO3/SrTiO3 interface to assess the main effect of an applied gate electric field. The authors find that mobility changes dominate over sheet carrier density changes (mobility variation reported as nearly fivefold larger). They also…

This theoretical/physics study investigates spectral properties of a spin-1/2 Heisenberg antiferromagnet on an anisotropic triangular lattice in a magnetic field. It reports that interchain interactions in a magnetic field generate dominant modes that behave as quasiparticles, featuring anomalous incommensurate…

This experimental animal study compared tympanic membrane closure time after myringotomy performed by microknife versus radiofrequency microcautery, with and without mitomycin C. Radiofrequency myringotomy differed significantly from knife myringotomy, and the 0.7 mm radiofrequency tip combined with mitomycin C was…

This engineering study examined how a DC bias electric field affects the resonance frequency shift of a PMN-PT/tin piezoelectric microcantilever sensor during humidity detection. The authors report that applying a bias field enhanced the relative resonance frequency shift, with a maximum enhancement of more than…