Naoya Suzuki

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We present a new compilation of Type Ia supernovae (SNe Ia), a new data set of low-redshift nearby-Hubble-flow SNe, and new analysis procedures to workwith these heterogeneous compilations. This ‘‘Union’’ compilation of 414 SNe Ia, which reduces to 307 SNe after selection cuts, includes the recent large samples of SNe Ia from the Supernova Legacy Survey and(More)
Rises in free [Ca2+]i in response to various tetanic stimuli (Ca2+ transient) in frog motor nerve terminals were measured by recording fluorescence changes of Ca2+ indicators and analyzed in relation to short-term synaptic plasticity. Ca2+ transients reached a plateau after 10–20 impulses at 100 Hz and decayed in a three-exponential manner, in which the(More)
We report on work to increase the number of well-measured Type Ia supernovae (SNe Ia) at high redshifts. Light curves, including high signal-to-noise HST data, and spectra of six SNe Ia that were discovered during 2001 are presented. Additionally, for the two SNe with z > 1, we present groundbased J-band photometry from Gemini and the VLT. These are among(More)
Papillary meningioma is a rare variant of meningioma defined by the presence of a perivascular pseudopapillary pattern. Because papillary meningioma typically displays invasion of the brain, local recurrence, and distant metastasis, it has been graded as a WHO grade III tumor [8]. Rhabdoid meningioma is a relatively newly recognized, distinct WHO grade III(More)
Vortex shedding from an obstacle potential moving in a Bose-Einstein condensate is investigated. Long-lived alternately aligned vortex pairs are found to form in the wake, which is similar to the Bénard-von Kármán vortex street in classical viscous fluids. Various patterns of vortex shedding are systematically studied and the drag force on the obstacle is(More)
An amine-embedded flexible alkyl strap has been incorporated into an emissive boryl-substituted dithienylpyrrole skeleton as a new entity of excited-state intramolecular proton transfer (ESIPT) chromophores. The π-electron system shows a dual emission, which covers a wide range of the visible region depending on the solvent polarity. The incorporation of(More)
Contamination of the exterior surface of vials of cytostatic drugs by the drugs themselves is a potential hazard to human health. This study developed a validated method using liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS) for the determination of contamination of the exteriors of vials of cisplatin and carboplatin.(More)
We report the first examples of straightforward trans-hydroboration of internal alkynes at room temperature with 9-BBN, producing five-membered BN-heterocycles. Contrary to conventional cis-hydroboration, we demonstrate that the introduction of a pyridyl group switches the stereoselectivity of the reaction. A hydride migration mechanism has been proposed(More)
Superficial siderosis of the central nervous system (SS) is a rare clinical syndrome due to repeated intracranial hemorrhage. We report a case of SS occurring 19 years after subtotal removal of a non-functioning pituitary adenoma. The patient was a 37-year-old female, exhibiting progressive bilateral sensory neural hearing loss and cerebellar ataxia. T2(More)
Two distinct species of amyloid β protein (Aβ) with different carboxyl termini, Aβ40 and Aβ42(43), are deposited in plaques in the brains of patients with Alzheimer's disease and Down's syndrome. The relationship between these two forms of Aβ and microglial cells was investigated in 16 subjects with Down's syndrome ranging in age from 31 to 64 years. The(More)