28 Result(s)

Article

Hyperactivation of the RAS signaling pathway in myelodysplastic syndrome with AML1/RUNX1 point mutations

AML1/RUNX1 mutations have been reported frequently in myelodysplastic syndrome (MDS) patients, especially those diagnosed with refractory anemia with excess blast (RAEB), RAEB in transformation (RAEBt), or AML...

H Niimi, H Harada, Y Harada, Y Ding, J Imagawa, T Inaba, T Kyo, A Kimura in Leukemia (2006)

Article

Photochemical Control of Dark Conductivity - A New Approach to Devices Based on Molecular Crystals

Thermal analysis of Ag(DM)₂, where DM = 2,5-dimethyl-N,N’- dicyanoquinonediimine, clarified that the salt had an insulating amorphous phase ( ≥ 155°C). Characterization of this and related solid states of Ag(DM)₂

T. Naito, H. Sugawara, T. Inabe, Y. Kitajima… in Journal of Low Temperature Physics (2006)

Article

Photochemical control of dark conductivity - a new approach to devices based on molecular crystals

Thermal analysis of Ag(DM)₂, where DM=2,5-dimethyl-N,N’-dicyanoquinonediimine, clarified that the salt had an insulating amorphous phase (≥155°C). Characterization of this and related solid states of Ag(DM)₂ indi...

T. Naito, H. Sugawara, T. Inabe, Y. Kitajima… in Journal of Low Temperature Physics (2006)

Article

Quantitative assessment of cerebral neocapillary network and its remodeling in mice using intravital fluorescence videomicroscopy

To assess the responses of different growth factors on cerebral neocapillary density (NCD), cerebral angiogenesis was induced in mice using growth factors, basic fibroblast growth factor (bFGF) and platelet-de...

K. Nageswari, S. Yamaguchi, T. Yamakawa, H. Niimi in Angiogenesis (2002)

Article

Direct demonstration of humorally mediated inhibition of the transcription of phosphate transporter in XLH patients

T. Nii, Y. Taketani, Y. Tani, I. Ohkido, H. Segawa… in Clinical and Experimental Nephrology (2001)

Article

Ultrathin Silicon Oxide and Nitride — Silicon Interface States

Local electronic states at nanometer-thick silicon oxide and nitride films on Si can be studied on an unprecedented scale using low - energy cathodoluminescence spectroscopy to observe optical transitions of d...

L. J. Brillson, A. P. Young, J. Schäfer, H. Niimi… in MRS Online Proceedings Library (1999)

Article

The Effects of Interfacial Suboxide Transition Regions on Direct Tunneling in Oxide and Stacked Oxide-Nitride Gate Dielectrics

Mesarjian et al. were the first to recognize the effects of suboxide interfacial transition regions at Si-SiO₂ interfaces on tunneling oscillations in the Fowler-Nordheim regime. This paper extends these ideas to...

H. Yang, H. Niimi, Y. Wu, G. Lucovsky in MRS Online Proceedings Library (1999)

Article

Stool smears for diagnosis of intestinal acute graft-versus-host disease

A patient with severe diarrhea was successfully diagnosed as having acute intestinal GVHD on stool smear through detection of detached intestinal epithelial cells with apoptosis. Since a stool smear can be eas...

K Hirano, F Kondo, Y Kondo, K Kurosawa, S Suwabe, Y Noguchi… in Bone Marrow Transplantation (1999)

Article

Cathodoluminescence Studies of Si-Sio₂ Interfaces Prepared by Plasma-Assisted Oxidation and Subjected to Post-Oxidation Rapid Thermal Annealing

We have used low energy cathodolumrdinescence spectroscopy (CLS) to characterize defects at ultrathin (50 Å) silicon dioxide films, prepared on Si substrates by low-temperature plasma deposition. Variable-dept...

J. Schafer, A. P. Young, L. J. Brillson, H. Niimi… in MRS Online Proceedings Library (1998)

Article

Changes in urinary 6β-hydroxycortisol/cortisol ratio after birth in human neonates

Objective: Urinary 6β-hydroxycortisol/cortisol (6β-OHF/C) ratio was measured in human neonates to assess the CYP3A enzyme activity.

H. Nakamura, M. Hirai, S. Ohmori, Y. Ohsone… in European Journal of Clinical Pharmacology (1998)

Chapter

The Initial Phases of Sic-SiO₂ Interface Formation by Low-Temperature (300 ºC) Remote Plasma-Assisted Oxidation of Si and C Faces on Flat and Vicinal 6H SiC

The initial stages of SiC-Si0₂ interface formation by low temperature (300 ºC) remote plasma assisted oxidation (RPAO) have been studied by on-line Auger electron spectroscopy (AES) for flat and vicinal 6H SiC(00...

G. Lucovsky, H. Niimi in Fundamental Aspects of Ultrathin Dielectrics on Si-based Devices (1998)

Article

Controlled Incorporation of Nitrogen at The Top Surface of Silicon Oxide Gate Dielectrics

During a high RF power (60–100 W) N20/He remote plasma oxidation of Si(100) at 300 °C, nitrogen atoms have been incorporated at the top surface of an ultra-thin (1.0–2.5 nm) oxide. Online Auger electron spectr...

H. Niimi, K. Koh, G. Lucovsky in MRS Online Proceedings Library (1996)

Article

Reaction Pathways for Nitrogen Incorporation at Si-SiO2 Interfaces

This paper presents experimental studies in which N-atoms have been incorporated at Si-SiO₂ interfaces by forming the interface and oxide film by a 300°C remote plasma assisted nitridation/oxidation process using...

K. Koh, H. Niimi, G. Lucovsky in MRS Online Proceedings Library (1996)

Article

Bonded-H in Gate Dielectrics Deposited by Plasma Assisted Chemical Vapor Deposition and Subjected to Rapid Thermal Annealing

The incorporation of bonded nitrogen into ultra thin SiO₂ gate dielectrics has become an important technology issue. Nitrogen atoms bonded in the immediate vicinity of the Si-SiO₂ interface improve device reliabi...

G. Lucovsky, H. Niimi, K. Koh in MRS Online Proceedings Library (1996)

Article

T2 shortening in childhood moyamoya disease

We examined T2 shortening in six children with infarcts due to moyamoya disease to clarify whether there are characteristic patterns of T2 shortening in the deep grey and white matter. Profound T2 shortening i...

J. Takanashi, K. Sugita, Y. Tanabe, C. Ito, H. Date, H. Niimi in Neuroradiology (1996)

Article

Integrated Processing of Silicon Oxynitride Alloy Dielectrics by Plasma-Assisted Oxidation, Chemical Vapor Deposition, and On-Line Rapid Thermal Annealing

Thin film dielectrics have been prepared in a cluster processing system with chambers for plasma-assisted, rapid-thermal processing, and on-line Auger electron spectroscopy (AES). A low-thermal budget process ...

S. V. Hattangady, H. Niimi, S. Gandhi, G. Lucovsky in MRS Online Proceedings Library (1995)

Article

Silicon Oxynitride and Oxide-Nitride-Oxide Gate Dielectrics by Combined Plasma-Rapid Thermal Processing

We have used a combination of plasma and rapid thermal processing for the formation of thin gate-dielectric films. The bulk dielectric films investigated include silicon oxide, oxynitride and multilayer oxide-...

Y. Ma, S. V. Hattangady, T. Yasuda, H. Niimi, S. Gandhi… in MRS Online Proceedings Library (1994)

Article

Guillain-Barré syndrome associated with IgM anti-G_M1 antibody followingCampylobacter jejuni enteritis

We report a 4-year-old girl diagnosed as having Guillain-Barré syndrome after infection by Penner serotype 19 ofCampylobacter jejuni. The patient had the HLA-B35 antigen. Neurological examination revealed distal-...

K. Sugita, M. Ishii, J. Takanashi, H. Niimi, N. Yuki in European Journal of Pediatrics (1994)

Article

In vivo flow visualization of induced saccular cerebral aneurysms in rats

A surgical procedure to expose the arterial bifurcation at the base of the rat brain was developed without sacrificing the animal. Using this technique, visualization of flow in and around the induced cerebral...

H. Nakatani, N. Hashimoto, H. Kikuchi, S. Yamaguchi, H. Niimi in Acta Neurochirurgica (1993)