Skip to main content

previous disabled Page of 2
and
  1. No Access

    Article

    Ink4a/Arf−/− and HRAS(G12V) transform mouse mammary cells into triple-negative breast cancer containing tumorigenic CD49f quiescent cells

    Intratumoral heterogeneity within individual breast tumors is a well-known phenomenon that may contribute to drug resistance. This heterogeneity is dependent on several factors, such as types of oncogenic driv...

    K Kai, T Iwamoto, T Kobayashi, Y Arima, Y Takamoto, N Ohnishi, C Bartholomeusz in Oncogene (2014)

  2. Article

    Open Access

    Statin use in primary inflammatory breast cancer: a cohort study

    Some studies have suggested that statins, which have cholesterol-lowering and anti-inflammatory properties, may have antitumor effects. Effects of statins on inflammatory breast cancer (IBC) have never been st...

    T M Brewer, H Masuda, D D Liu, Y Shen, P Liu, T Iwamoto, K Kai in British Journal of Cancer (2013)

  3. No Access

    Article

    Ink4a and Arf are crucial factors in the determination of the cell of origin and the therapeutic sensitivity of Myc-induced mouse lymphoid tumor

    The cell of origin of tumors and the factors determining the cell of origin remain unclear. In this study, a mouse model of precursor B acute lymphoblastic leukemia/lymphoma (pre-B ALL/LBL) was established by ...

    E Sugihara, T Shimizu, K Kojima, N Onishi, K Kai, J Ishizawa, K Nagata in Oncogene (2012)

  4. No Access

    Chapter

    Development of Millimeter-wave Radar for Latest Vehicle Systems

    We developed the millimeter-wave radar that adopted both the FMpulse Doppler method and the Polarization-twisting Cassegrain antenna with mechanical scanning. Our radar features the following advantage: ▸ Wide...

    K. Nakagawa, M. Mitsumoto, K. Kai in Advanced Microsystems for Automotive Applications 2005 (2005)

  5. No Access

    Article

    The Hard X-ray Telescope (HXT) for the SOLAR-A mission

    The Hard X-ray Telescope (HXT) is a Fourier-synthesis imager; a set of spatially-modulated photon count data are taken from 64 independent subcollimators and are Fourier-transformed into an image by using proc...

    T. Kosugi, K. Makishima, T. Murakami, T. Sakao, T. Dotani, M. Inda, K. Kai in Solar Physics (1991)

  6. No Access

    Chapter

    Microwave Observations of the Sun During the 22nd Solar Activity Cycle — 17 GHz Radio Heliograph

    For the study of high energy phenomena on the Sun during the maximum period of the 22-nd solar activity cycle, we started to construct a radio heliograph at Nobeyama Radio Observatory. The operating frequency ...

    K. Shibasaki, K. Kai, S. Enome, H. Nakajima in Environmental and Space Electromagnetics (1991)

  7. No Access

    Chapter

    The Hard X-ray Telescope (HXT) for the SOLAR-A Mission

    The Hard X-ray Telescope (HXT) is a Fourier-synthesis imager; a set of spatially-modulated photon count data are taken from 64 independent subcollimators and are Fourier-transformed into an image by using proc...

    T. Kosugi, K. Makishima, T. Murakami, T. Sakao, T. Dotani in The Yohkoh (Solar-A) Mission (1991)

  8. No Access

    Article

    Cytotoxic effects of a leukocidin from Fusobacterium necrophorum on bovine hepatic cells

    Cytotoxic effects of a leukocidin from Fusobacterium necrophorum were demonstrated on bovine hepatic cells. The cytotoxic response was dose-dependent and could be inhibited by homologous antiserum. Scanning elect...

    T. Ishii, M. Kanoe, T. Inoue, K. Kai, H. Blobel in Medical Microbiology and Immunology (1987)

  9. No Access

    Article

    Radio evidence for a delayed acceleration process in solar flares

    Evidence for a delayed acceleration process in solar flares is presented in the form of an analysis of simultaneous observations in microwaves, decimetre and metrewaves, and hard X-rays of six ‘delayed’ gradua...

    K. Kai, H. Nakajima, T. Kosugi, R. T. Stewart, G. J. Nelson, S. R. Kane in Solar Physics (1986)

  10. No Access

    Article

    X-ray imaging of a solar limb flare on 1982 January 22

    Simultaneous X-ray images in hard (20–40 keV) and softer (6.5–15 keV) energy ranges were obtained with the hard X-ray telescope aboard the Hinotori spacecraft of an impulsive solar X-ray burst associated with ...

    T. Takakura, K. Tanaka, N. Nitta, K. Kai, K. Ohki in Solar Physics (1986)

  11. No Access

    Article

    Can observed hard X-ray and microwave flux from solar flares be explained by a single electron population?

    In attempting to explain observed hard X-ray and microwave flux from solar flares by a single population of energetic electrons, one has met a serious discrepancy of the order of 103–105 between the calculated an...

    K. Kai in Solar Physics (1986)

  12. No Access

    Chapter

    Can Observed Hard X-Ray and Microwave Flux from Solar Flares be Explained by a Single Electron Population?

    In attempting to explain observed hard X-ray and microwave flux from solar flares by a single population of energetic electrons, one has met a serious discrepancy of the order of 103-105 between the calculated an...

    K. Kai in Radio Continua During Solar Flares (1986)

  13. No Access

    Article

    Successive electron and ion accelerations in impulsive solar flares on 7 and 21 June 1980

    A study of the relative timing of solar flare emissions at different wavelengths can provide valuable insights into the associated particle-acceleration mechanisms. We report here that the significant systemat...

    H. Nakajima, T. Kosugi, K. Kai, S. Enome in Nature (1983)

  14. No Access

    Article

    Late phase gradual enhancements in microwaves and hard X-rays of the 6 November 1980 flare

    Gradual enhancements which repeatedly appeared 20–50 min after the onset of an impulsive burst were observed in microwaves and hard X-rays. The observed characteristics of the gradual enhancements are (i) the ...

    K. Kai, H. Nakajima, T. Kosugi, S. R. Kane in Solar Physics (1983)

  15. No Access

    Chapter and Conference Paper

    Late Phase Gradual Enhancements in Microwaves and Hard X-rays of the 6 November 1980 Flare

    Gradual enhancements which repeatedly appeared 20–50 min after the onset of an impulsive burst were observed in microwaves and hard X-rays. The observed characteristics of the gradual enhancements are (i) the ...

    K. Kai, H. Nakajima, T. Kosugi, S. R. Kane in Recent Advances in the Understanding of So… (1983)

  16. No Access

    Article

    Source structure of gradual rise and fall bursts at 17 GHz

    From ∼ 200 GRF (gradual rise and fall) bursts which have been recorded with the 17 GHz interferometer at Nobeyama, we deduce the following characteristics of GRF bursts: (1) Sources of GRF bursts are broader, ...

    K. Kai, T. Kosugi, H. Nakajima in Solar Physics (1982)

  17. No Access

    Article

    Coronal magnetic field structure derived from two-frequency radioheliograph observations

    An exceptional variety of positions and polarizations was found for two type I storms and numerous sporadic bursts observed during 15 consecutive days with the Culgoora radioheliograph at 80 and 160 MHz. The r...

    K. Kai, K. V. Sheridan in Solar Physics (1974)

  18. No Access

    Chapter

    Coronal Magnetic Field Structure Derived from Two-Frequency Radioheliograph Observations

    An exceptional variety of positions and polarizations was found for two type I storms and numerous sporadic bursts observed during 15 consecutive days with the Culgoora radio-heliograph at 80 and 160 MHz.

    K. Kai, K. V. Sheridan in Coronal Disturbances (1974)

  19. No Access

    Chapter

    Unusual Absorption of a Solar Type II Burst by ‘Shadow’ Type III Bursts

    The Hα-flare on 1968 August 23d23h45m was followed by a short-lived type II burst. The radio spectrograph record obtained at Culgoora is shown in Figure 1. The type II burst was of split-band structure with unusu...

    K. Kai in Coronal Disturbances (1974)

  20. No Access

    Article

    The structure, polarization, and spatial relationship of solar radio sources of spectral types I and III

    A description is given of recent high-resolution observations of the sun made at 80 MHz with the Culgoora radioheliograph. In many cases the sources of type I storms show bi-polar structure, the two components...

    K. Kai in Solar Physics (1970)

previous disabled Page of 2