Neutrino oscillations as solutions of the solar neutrino problems and the atmospheric neutrino deficits may restrict neutrino mass squared differences and mixing angles in three-neutrino mixing scheme. Currently we have several solutions depending on the interpretations of the solar neutrino problems. Combining the neutrino oscillation solutions and a mass matrix ansatz, we investigated the neu...

Cerebellopontine angle (CPA) tumors are the most common neoplasms in posterior fossa, accounting for 5-10% of intracranial tumors. Most CPA benign, with over 85% being vestibular schwannoma (acoustic neuromas). The preferred treatment symptomatic has been surgical excision. Craniotomy resections lateral position gave better field exposure, but also posed increased risk ventilation-perfusion mis...

A 58-year-old Japanese man suddenly suffered from vertigo. On physical examination, left-beating horizontal torsional spontaneous nystagmus was observed; the direction did not change with gaze. Other neurotological examinations revealed findings within normal limits except the left side sensorineural hearing loss of approximately 32 dB on average. Diffusion-weighted MRI revealed no infarction i...

With the discovery of CP violation in the B mesons, and the precise measurement of the angle β [1] of the Unitarity Triangle (UT), the experimental effort focus on the measurements of other parameters to over-constraint the Cabibbo-KobayashiMaskawa (CKM) matrix [2]. In particular the information on the side Rb opposite to the angle β is crucial to test the standard model prediction for CP viola...

We consider a family of non-supersymmetric MQCD five-brane configurations introduced by Witten, and discuss the dependence of the curves on the microscopic theta angle and its relation with CP. We find evidence for a non-trivial spectral flow of the curves (vacua) and for the level-crossing of adjacent curves at a particular value of the theta angle, with spontaneous breaking of CP symmetry, pr...

In the title compound, [Fe(C(5)H(5))(C(15)H(16)NO)], the two cyclo-penta-dienyl (Cp) rings are nearly parallel to each other, forming a dihedral angle of 3.7 (1)°, and adopt a staggered conformation. The amide group is almost perpendicular to the plane of the substituted Cp ring, with a C-N-C-C torsion angle of 101.3 (2)°, and the N and O atoms in the ethanoyl group are coplanar, with a C-N-C-O...

The structure of the title compound, [Fe(C5H5)(C10H12N2)]I, consists of a 1-(ferrocen-1-ylmeth-yl)-3-methyl-imidazolium cation which is counter-balanced by an iodide anion. The cyclo-penta-dienyl (Cp) rings of the ferrocene unit have a slightly staggered conformation skewed from an ideal eclipsed conformation by an angle of 3.5 (6)°. The inter-planar angle between the Cp and the imidazole ring ...

Choroid plexus papillomas are rare intracranial neoplasms that are most commonly found in the trigone of the lateral ventricles or in the fourth ventricle. Rare cases of extraventricular choroid plexus papillomas have been reported within the cerebellopontine (CP) angle cistern [1-6]. Such cases have been described as either extending from the fourth ventricle via the foramen of Luschka or aris...