104,193 research outputs found
Minami R. et Okada M. — Formation et évolution des idées sur la population
No full textS. K., T. S. Minami R. et Okada M. — Formation et évolution des idées sur la population. In: Population, 37ᵉ année, n°2, 1982. p. 444
THz emission from intrinsic Josephson junctions in high-Tc superconductors for imaging applications
No full textIn 2007 [1], we have succeeded in observing strong, coherent, and continuous THz emission from a mesa of Bi 2 Sr 2 CaCu 2 O 8+s single crystal with a rectangular dimension of a few hundred micrometers in length, several tens of micrometers in width, and a few micrometers in thickness. Since then, great progress has been made both in understanding the fundamental mechanism of the radiation [2-6] and in practical applications [7-9] . References: [1] L. Ozyuzer, A. E. Koshelev, C. Kuter, N. Gopalsami, Q. Li, M. Tachiki, K. Kadowaki, T. Yamamoto, H. Minami, H. Yamaguchi, T. Tachiki, K. E. Gray, W. –K. Kwok and U. Welp, "Emission of Coherent THz Radiation from Superconductors", Science, 318, 1291 (2007). [2] K. Kadowaki, H. Yamaguchi, K. Kawamata, T. Yamamoto, H. Minami, I. Kakeya, U. Welp, L. Ozyuzer, A. Koshelev, C. Kurter, K. E. Gray and W. –K. Kwok, "Direct Observation of Terahertz Electromagnetic Waves emitted from Intrinsic Josephson Junctions in single crystalline Bi2Sr2CaCu2O8+ ", Physica C468, 634-639 (2008). [3] K. Kadowaki M. Tsujimoto, K. Yamaki, T. Yamamoto, T. Kashiwagi, H. Minami, M. Tachiki and R. A. Klemm, "Evidence for Dual- Source Mechanism of Terahertz Radiation from Rectangular Mesas of Single Crystalline Bi2Sr2CaCu2O8+ Intrinsic Josephson Junctions", J. Phys. Soc. Jpn. 79, 023703 (2010) [4] M. Tsujimoto, K. Yamaki, K. Deguchi, T. Yamamoto, T. Kashiwagi, H. Minami, M. Tachiki, K. Kadowaki, and R. A. Klemm, "Geometrical Resonance Conditions for THz Radiation from the Intrinsic Josephson Junctions in Bi2Sr2CaCu2O8+ ", Phys. Rev. Lett. 105, 037005 (2010). [5] M. Tsujimoto, T. Yamamoto, K. Delfanazari, R. Nakayama, T. Kitamura, M. Sawamura, T. Kashiwagi, H. Minami, M. Tachiki, K. Kadowaki, and R. A. Klemm, "Broadly Tunable Subterahertz Emission from Internal Branches of the Current-Voltage Characteristics of Superconducting Bi2Sr2CaCu2O8+ Single Crystals", Phys. Rev. Lett. 108, 107006 (2012). [6] T. Kashiwagi, M. Tsujimoto, T. Yamamoto, H. Minami, K. Yamaki, K. Delfanazari, K. Deguchi, N. Orita, T. Koike, R. Nakayama, T. Kitamura, M. Sawamura, S. Hagino, K. Ishida, K. Ivanovic, H. Asai, M. Tachiki, R. A. Klemm, and K. Kadowaki, "High Temperature Superconductor Terahertz Emitters: Fundamental Physics and Applications", Jpn. J. Appl. Phys. 51 (2012) 0101113. [7] H. Minami, I. Kakeya, H. Yamaguchi, T. Yamamoto, and K. Kadowaki, "Characteristics of terahertz radiation emitted from the intrinsic Josephson junctions in high-Tc superconductor Bi2Sr2CaCu2O8+ ", Appl. Phys. Lett. 95, (2009) 232511. [8] K. Yamaki, M. Tsujimoto, T. Yamamoto, A. Furukawa, T. Kashiwagi, H. Minami, and K. Kadowaki, "High-power terahertz electromagnetic wave emission from high-Tc superconducting Bi2Sr2CaCu2O8+ mesa structures", OPTICS EXPRESS 19 (2011) 3193. [9] H. Minami, M. Tsujimoto, T. Kashiwagi, T. Yamamoto, and K. Kadowaki, IEICE Trans. Electron., E95-C, (2012) 347. [10] M. Tsujimoto, H. Minami, K. Delfanazari, M. Sawamura, R. Nakayama, T. Kitamura, T. Yamamoto, T. Kashiwagi, T. Hattori and K. Kadowaki, "Terahertz imaging system using high-Tc superconducting oscillation devices", J. Appl. Phys. 111, (2012) 123111.© 2013 IEEE
Letter, [Author unclear] to Paulina T. Merritt
No full textHandwritten letter to Paulina Merritt from an unknown author, October 1, 1876.
Feminism, Power, & Nuclear Weapons : An Eye on the P5
No full textThis project is a collection of articles from five extraordinary civil society thinkers on feminism and nuclear policy to address this precise question. It is our hope that this work inspires a thoughtful interrogation of the status quo in both personal and professional capacities, and encourages us all to think more creatively and holistically about nuclear policy
Supplementary data set for "Three-Dimensional Time Domain Simulation of Tsunami-Generated Electromagnetic Fields: Application to the 2011 Tohoku Earthquake Tsunami"
No full textFour data files contain processed tsunami magnetic variations at ESA, B14, NWP, and CBI. Please read Section 4.3 in the main article for the detail of the processing. The contents in each file are composed of ten columns;
time [min since 05:46 UTC on March 11, 2011] (one column), high-pass filtered XYZ at the target site (three columns), synthesized XYZ at the target site based on eq. (14) (three columns), and cleaned XYZ at the target site, i.e. data left after subtraction of synthesized data from high-pass filtered data (three columns). For a seafloor site, B14, not the high-pass filtered but just raw time-series are contained in the second to forth columns because of the shortage of the original time series at B14. Readers can easily plot the four data files by using the script, plot_CTS.sh, where CTS stands for Cleaned Time Series. The four postscript files were generated by this script.
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For use of data at B14, please also refer Ichihara et al. (2013), which first reported tsunami magnetic signals at B14 during the 2011 Tohoku tsunami event.
Ichihara, H., Hamano, Y., Baba, K., & Kasaya, T. (2013). Tsunami source of the 2011 Tohoku earthquake detected by an ocean-bottom magnetometer. Earth and Planetary Science Letters, 382, 117-124.
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For use of data at NWP, please also refer Minami et al. (2013), which first reported tsunami magnetic signals at NWP during the 2011 Tohoku tsunami event.
Minami, T., & Toh, H. (2013). Two‐dimensional simulations of the tsunami dynamo effect using the finite element method. Geophysical Research Letters, 40(17), 4560-4564
Development of a morphological color image processing algorithm for paper-based analytical devices
No full textAlthough fabrication of colorimetric paper-based analytical devices (PADs) has drawn increasing attention recently, the signal readout method is still a crucial challenge on the way to practical exploitations. We herein introduce an integration of digital image processing with a model PAD for easing and improving the signal readout procedure. The colorimetric detection mechanism of PAD relies on in-situ induced yellowish silver nanoparticles via the interaction of silver ions, poly(vinyl alcohol), and ammonia with isoniazid. The observed color value is related with the concentration of isoniazid. The proposed algorithm is based on mathematical morphology recognition, and minimizes the errors arising from manual area selection. Besides, it allows the recognition of both circle and square shapes in 96-well plate and A4 size array designs. Since this algorithm automatically provides the blank-corrected numerical matrixes and image profiles of red, green and blue channels, further investigations such as outlier classification, construction of regression/prediction models and calculation of detection limit can be easily performed. Comparison of signal readout results of the developed algorithm with ImageJ software demonstrates significant improvements in analysis speed, reproducibility, accuracy and color values. Therefore, application of the proposed algorithm is promising as a robust technique for practical applications
Handwritten biographical information on Paulina T. McClung Merritt
No full textA handwritten biography of Paulina T. McClung Merritt by an unknown author, 1892.
Heterogeneous and tissue-specific regulation of effector T cell responses by IFN-gamma during Plasmodium berghei ANKA infection.
No full textIFN-γ and T cells are both required for the development of experimental cerebral malaria during Plasmodium berghei ANKA infection. Surprisingly, however, the role of IFN-γ in shaping the effector CD4(+) and CD8(+) T cell response during this infection has not been examined in detail. To address this, we have compared the effector T cell responses in wild-type and IFN-γ(-/-) mice during P. berghei ANKA infection. The expansion of splenic CD4(+) and CD8(+) T cells during P. berghei ANKA infection was unaffected by the absence of IFN-γ, but the contraction phase of the T cell response was significantly attenuated. Splenic T cell activation and effector function were essentially normal in IFN-γ(-/-) mice; however, the migration to, and accumulation of, effector CD4(+) and CD8(+) T cells in the lung, liver, and brain was altered in IFN-γ(-/-) mice. Interestingly, activation and accumulation of T cells in various nonlymphoid organs was differently affected by lack of IFN-γ, suggesting that IFN-γ influences T cell effector function to varying levels in different anatomical locations. Importantly, control of splenic T cell numbers during P. berghei ANKA infection depended on active IFN-γ-dependent environmental signals--leading to T cell apoptosis--rather than upon intrinsic alterations in T cell programming. To our knowledge, this is the first study to fully investigate the role of IFN-γ in modulating T cell function during P. berghei ANKA infection and reveals that IFN-γ is required for efficient contraction of the pool of activated T cells
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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