H
Hiroki Kawai
Researcher at University of Tokyo
Publications - 17
Citations - 690
Hiroki Kawai is an academic researcher from University of Tokyo. The author has contributed to research in topics: Neural stem cell & Subependymal zone. The author has an hindex of 7, co-authored 16 publications receiving 578 citations. Previous affiliations of Hiroki Kawai include Toshiba.
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Journal ArticleDOI
Slowly dividing neural progenitors are an embryonic origin of adult neural stem cells
Shohei Furutachi,Hiroaki Miya,Tomoyuki Watanabe,Hiroki Kawai,Norihiko Yamasaki,Yujin Harada,Itaru Imayoshi,Mark T. Nelson,Keiichi I. Nakayama,Yusuke Hirabayashi,Yukiko Gotoh +10 more
TL;DR: Analysis of cell cycle progression by examining retention of a histone 2B (H2B)-GFP fusion protein revealed that, in a subset of mouse embryonic neural progenitor cells (NPCs), the cell cycle slows between embryonic day (E) 13.5 and E15.5 while other embryonic NPCs continue to divide rapidly.
Journal ArticleDOI
The mechanism of slow hot-hole cooling in lead-iodide perovskite: first-principles calculation on carrier lifetime from electron-phonon interaction.
TL;DR: An analysis of hot-carrier lifetimes from electron-phonon interaction in lead iodide perovskites using first-principles calculations shows that the holes in CsPbI3 have very long lifetimes in the valence band region situated 0.6 eV below the top of theValence band, while no long lifetime is predicted in PbI 3(-).
Journal ArticleDOI
Dll1 maintains quiescence of adult neural stem cells and segregates asymmetrically during mitosis.
TL;DR: It is shown that the Notch ligand Delta-like 1 (Dll1) is required to maintain quiescent NSCs in the adult mouse subventricular zone and suggests a model in which N SCs produce their own niche cells for their maintenance through asymmetric Dll1 inheritance at mitosis.
Journal ArticleDOI
Area-Specific Regulation of Quiescent Neural Stem Cells by Notch3 in the Adult Mouse Subependymal Zone.
Hiroki Kawai,Daichi Kawaguchi,Benjamin D. Kuebrich,Takeo Kitamoto,Masahiro Yamaguchi,Yukiko Gotoh,Shohei Furutachi +6 more
TL;DR: Notch3 is specifically expressed in qNSCs located in the lateral and ventral walls of the lateral ventricles and regulates neuronal production of NSCs in a region-specific manner and results indicate that Notch3, by maintaining the quiescence of a subpopulation of N SCs, confers a regions-specific heterogeneity among NSCS in the adult SEZ.
Journal ArticleDOI
Electron-electron and electron-phonon correlation effects on the finite-temperature electronic and optical properties of zinc-blende GaN
TL;DR: In this article, the effect of the electron-electron and electron-phonon interactions was combined to obtain an unprecedented agreement of the zero and finite-temperature electronic gaps and absorption spectra with the experimental results.