Fukushima University

About: Fukushima University is a education organization based out in Fukushima, Japan. It is known for research contribution in the topics: Population & Environmental science. The organization has 705 authors who have published 1748 publications receiving 22358 citations.

Usefulness of the Wechsler Intelligence Scale short form for assessing functional outcomes in patients with schizophrenia

Abstract: The Wechsler Adult Intelligence Scale (WAIS) has been widely used to assess intellectual functioning not only in healthy adults but also people with psychiatric disorders. The purpose of the study was to develop an optimal WAIS-3 short form (SF) to evaluate intellectual status in patients with schizophrenia. One hundred and fifty patients with schizophrenia and 221 healthy controls entered the study. To select subtests for SFs, following criteria were considered: 1) predictability for the full IQ (FIQ), 2) representativeness for the IQ structure, 3) consistency of subtests across versions, 4) sensitivity to functional outcome measures, 5) conciseness in administration time. First, exploratory factor analysis (EFA) and multiple regression analysis were conducted to select subtests satisfying the first and the second criteria. Then, candidate SFs were nominated based on the third criterion and the coverage of verbal IQ and performance IQ. Finally, the optimality of candidate SFs was evaluated in terms of the fourth and fifth criteria. The results suggest that the dyad of Similarities and Symbol Search was the most optimal satisfying the above criteria.

Traversable Wormholes with Exponential Shape Function in Modified Gravity and in General Relativity: A Comparative Study

Abstract: We have proposed a novel shape function on which the metric that models traversable wormholes is dependent. Using this shape function, the energy conditions, equation of state and anisotropy parameter are analyzed in $f(R)$ gravity, $f(R,T)$ gravity and general relativity. Furthermore, the consequences obtained with respect to these theories are compared. In addition, the existence of wormhole geometries is investigated.

Hierarchical structures of vertical velocity variations and precipitating clouds near the Baiu frontal cyclone center observed by the MU and meteorological radars

Abstract: We carried out a three-week observation campaign using the MU radar and meteorological (C-, X-, Ku-band) radars during the Baiu season in 1991 (17 June-8 July). A complete data set of three-dimensional atmospheric motions with high reliability and resolution was produced after removing raindrop echoes. The Baiu front was located to the south of the radar site during 17-24 June, and to the north during 25-28 June. After 29 June, surface medium-scale (meso-α-scale) cyclone centers passed near the MU observatory, and the tropopause jet stream became strong (one or two days) after the low-level jet stream appeared near the surface cyclone center. We have investigated meso-β-scale vertical velocity fluctuations and precipitating cloud clusters with temporal scales of several hours for various locations relative to the surface cyclone centers: (i) one case in the northern side of a cyclone center on the Baiu front, (ii) four cases near developing surface cyclone centers and (iii) one case in the southern side of the Baiu front far from a cyclone center. For (i) and (ii), the vertical distributions of upward-velocity regions were strongly dependent on the level of lowest stratiform turbulence near the tropopause level (LSTT) and the frontal surface. The upward velocities in the cases (ii) were associated with the developing cloud cluster on the northern side of the surface warm front, while they were dominant over the region of meso-β scale but did not always have precipitation on the northern side of the surface cold front. For (iii) some upward-velocity regions without precipitation penetrated LSTT. Each meso-β-scale fluctuation for all the cases (i)-(iii) included a number of upward-velocity peaks corresponding to meso-γ-scale disturbances. Some of them were coincident with surface rainfall (and lower-tropospheric precipitation echo) peaks. Based on all the observational evidence mentioned above, we propose a schematic picture of the 'hierarchical structure' of the vertical velocity fluctuations near the Baiu front. This is partly the same as the well-known multi-scale structure composed of meso-α-scale cyclones, meso-β-scale cloud clusters and meso-γ-scale precipitating clouds, but covers more broad clear regions which cannot be observed by foregoing studies based on only meteorological radars and satellites.