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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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Slowly dividing neural progenitors are an embryonic origin of adult neural stem cells

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.
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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(-).
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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.
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Area-Specific Regulation of Quiescent Neural Stem Cells by Notch3 in the Adult Mouse Subependymal Zone.

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.
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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.