K. Onuma

Spin dynamics and spin freezing behavior in the two-dimensional antiferromagnet NiGa$_{2}$S$_{4}$ revealed by Ga-NMR, NQR and $\mu$SR measurements (2007)

Takeya, H., Ishida, K., Kitagawa, K., Ihara, Y., Onuma, K., Maeno, Y., ...

We have performed $^{69,71}$Ga nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) and muon spin rotation/resonance on the quasi two-dimensional antiferromagnet (AFM)...

Unusual superexchange pathways in a Ni triangular lattice of NiGa$_2$S$_4$ with negative charge-transfer energy (2007)

Takubo, K., Mizokawa, T., Nambu, Y., Onuma, K., Tonomura, H., ...

We have studied the electronic structure of the Ni triangular lattice in NiGa$_2$S$_4$ using photoemission spectroscopy and subsequent model calculations. The cluster-model analysis of the Ni 2$p$...

In vitro bioactivity of starch thermoplastic/hydroxyapatite composite biomaterials: an in situ study using atomic force microscopy (2003)

Leonor, I. B., Ito, A., Onuma, K., Kanzaki, N., Reis, R. L.

The in vitro bioactivity of a composite composed by a biodegradable starch-based polymeric matrix and hydroxyapatite fillers was investigated, in situ, as a function of immersion time in a simulated...

In situ study of partially crystallized Bioglass and hydroxylapatite in vitro bioactivity using atomic force microscopy (2002)

Leonor, I. B., Ito, A., Onuma, K., Kanzaki, N., Zhong, Z. P., Greenspan, D., ...

The present work investigates, in situ, the in vitro bioactivity of partially crystallized 45S5 Bioglass® (BG) as a function of immersion time in a simulated body fluid (SBF) using atomic force...

Preliminary Report of the 1977 Eruption of Usu Volcano (1978)

Katsui, Y., Ōba, Y., Onuma, K., Suzuki, T., Kondo, Y., Watanabe, T., ...

On August 7 (09h 12m, local time), 1977, a major eruption of dacite pumice occurred from the summit of Usu Volcano (42°32'N, 140°50'E), Hokkaido, Japan, after 32 years of dormancy since the birth...

Prevention of inflammation-mediated acquisition of metastatic properties of benign mouse fibrosarcoma cells by administration of an orally available superoxide dismutase

Okada, F, Shionoya, H, Kobayashi, M, Kobayashi, T, Tazawa, H, Onuma, K, ...

Weakly tumorigenic and nonmetastatic QR-32 cells derived from a fibrosarcoma in C57BL6 mouse are converted to malignant cells once they have grown after being coimplanted with a gelatine sponge which...