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2. Formation and evolution of carbonaceous asteroid Ryugu

Author

T. Nakamura M. Matsumoto K. Amano Y. Enokido M. Zolensky T. Mikouchi H. Genda S. Tanaka M. Zolotov K. Kurosawa S. Wakita R. Hyodo H. Nagano D. Nakashima Y. Takahashi Y. Fujioka M. Kikuiri E. Kagawa M. Matsuoka A. Brearley A. Tsuchiyama , M. Uesugi J. Matsuno Y. Kimura M. Sato R. Milliken E. Tatsumi S. Sugita T. Hiroi

Published
2022
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5. Glass transition and stable glass formation of tetrachloromethane.

Author

Chua, Y. Z., Tylinski, M., Tatsumi, S., Ediger, M. D., and Schick, C.

Subjects
GLASS transition temperature, CARBON tetrachloride, PHYSICAL vapor deposition, ANISOTROPY, SUPERCOOLED liquids, ASYMMETRY (Chemistry)
Abstract

Physical vapor deposition (PVD) has been used to prepare organic glasses with very high kinetic stability and it has been suggested that molecular anisotropy is a prerequisite for stable glass formation. Here we use PVD to prepare glasses of tetrachloromethane, a simple organic molecule with a nearly isotropic molecular structure. In situ AC nanocalorimetry was used to characterize the vapor-deposited glasses. Glasses of high kinetic stability were produced by deposition near 0.8 Tg. The isothermal transformation of the vapor-deposited glasses into the supercooled liquid state gave further evidence that tetrachloromethane forms glasses with high kinetic stability, with the transformation time exceeding the structural relaxation time of the supercooled liquid by a factor of 10³. The glass transition temperature of liquid-cooled tetrachloromethane is determined as Tg ≈ 78 K, which is different from previously reported values. The frequency dependence of the glass transition was also determined and the fragility was estimated as m ≈ 118. The successful formation of PVD glasses of tetrachloromethane which have high kinetic stability argues that molecular asymmetry is not a prerequisite for stable glass formation. [ABSTRACT FROM AUTHOR]

Published
2016
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6. Flux-limited schemes for the compressible Navier-Stokes equations

Author

Tatsumi, S., Martinelli, L., and Jameson, A.

Subjects
Aerodynamics -- Models, Viscous flow -- Analysis, Aerospace and defense industries, Business
Abstract

Assessment of the various discretization schemes for solving Navier-Stokes equations reveals the utility of such schemes in precisely resolving viscous flow problems. Newly developed schemes such as the symmetric limited positive and upstream limited positive flux-limited methods are likely to enhance the nature of resolutions of complex three-dimensional viscous flow scenarios.

Published
1995

9. SUMMARIZING AND VISUALIZING WEB PEOPLE SEARCH RESULTS

Author

Harumi Murakami, Ueda, H., Kataoka, S., Takamori, Y., and Tatsumi, S.

Subjects
Summarization, Interface, Web people search, Visualization
Abstract

People search is one major search activity on the Web. If the list of people search results is merely "person 1, person 2, . . . and so on," users have difficulty determining which person clusters they should select. In this paper, we present a project that summarizes and visualizes Web people search results to help users select person clusters more easily. We explore three ways of summarizing people: (a) selecting terms from the extracted information, (b) combining the extracted information, and (c) obtaining information from external databases referring to the extracted information. To visualize people, we present three types of interfaces: (a) tables, (b) two-dimensional space, and (c) map interfaces. We report the two results of the project. (1) We investigated algorithms for distinguishing individuals with identical names and three ways of summarizing people: extracting keywords, prefectures and vocations; combining vocation-related information; and obtaining locations. (2) We developed prototypes to display separated individuals by three types of interfaces.

Published
2010

11. General Lectures

Author

Yamaoka, Y., Nagai, T., Furuta, K., Inagawa, T., Sugiya, T., Kai, T., Amamoto, H., Okunara, T., Miyoshi, A., Araya, S., Sometani, T., Ogura, T., Yamato, T., Hirata, S., Hashimoto, T., Hamanaka, Y., Shakudo, Y., Ozaki, T., Noda, S., Kobayashi, K., Sasaki, K., Matsuura, R., Ueno, H., Ito, T., Umayahara, A., Koga, Y., Watanabe, K., Nabeya, K., Shimura, I., Ohyama, O., Komatsuzaki, T., Ogoshi, K., Hara, Y., Hiratsuka, H., Kubo, N., Masuda, H., Inoue, S., Arakawa, H., Koizumi, K., Mukozima, K., Inoue, Y., Hosaka, H., Kikuchi, N., Yoshida, H., Sakumoto, I., Inaba, M., Yokoi, Y., Abei, T., Iwama, S., Shirota, A., Miki, M., Ōkawa, K., Onda, M., Yoshioka, M., Shiba, T., Yamashita, K., Moriyama, Y., Adachi, K., Miyashita, M., Henmi, H., Egami, K., Toi, K., Fukiwake, T., Ito, H., Tamesue, N., Ohsato, K., Nagamitsu, S., Nishimura, M., Yamashita, Y., Yao, T., Mizuno, S., Tanabe, M., Yanase, M., Suzuki, K., Suzuki, K., Hayashi, K., Nishitani, T., Katake, K., Iwasa, N., Nishimura, S., Miyoshi, M., Fukumoto, K., Fujii, H., Inatomi, I., Nakajima, H., Hojo, Y., Tosaka, T., Kaneko, H., Yoshikawa, K., Mori, K., Uematsu, T., Takahashi, T., Morikawa, S., Hashi, M., Sakamoto, T., Kimura, A., Sasagawa, T., Maeda, Y., Matsukawa, M., Aizawa, T., Tabata, I., Munakata, A., Toda, S., Tajima, T., Matsunaga, F., Ogata, T., Nakayama, K., Nakayama, T., Minota, S., Otani, A., Takei, S., Tanaka, M., Miki, H., Hojo, K., Hirota, E., Sano, R., Murashima, Y., Okuuti, Y., Miwa, K., Suga, T., Yaosaka, T., Namiki, M., Kawauti, H., Nakagawa, K., Kasukawa, T., Kobayashi, S., Watanabe, H., Yamagata, S., Narasaka, T., Imai, H., Tsuneoka, T., Watanabe, H., Hoshi, K., Nishiyama, S., Hoshi, K., Fushimi, I., Hirai, T., Katsuda, M., Hirose, M., Yokomori, H., Matsumoto, T., Watanabe, N., Matsuura, K., Ishibashi, T., Nakata, S., Takei, C., Asano, H., Miyoshi, H., Hidaka, T., Dodo, H., Kitada, A., Nakamura, T., Sakata, S., Kitamura, S., Nakamua, T., Sakata, S., Kitamura, S., Agata, E., Aikawa, K., Oshima, A., Fujimoto, I., Kobayashi, T., Asakawa, Y., Kusakari, M., Abe, C., Tarumi, S., Yamashita, T., Takasu, S., Komase, Y., Hamada, H., Shoji, F., Saito, S., Takayama, T., Fujita, R., Kumura, F., Umeda, K., Okamoto, S., Nishio, H., Shintani, Y., Saitoh, K., Tatara, T., Iwamiya, K., Tamura, M., Tamura, K., Nakano, A., Tamura, U., Nakajima, T., Ichioka, G., Takeuchi, Y., Ayada, K., Torisu, R., Kamada, H., Matuoka, R., Turuoka, M., Sagara, Y., Nakamura, S., Sakasita, O., Mashimo, N., Sekiguchi, T., Kobayashi, S., Kishimoto, H., Takeuchi, T., Murakami, S., Koga, S., Ueno, M., Nishizawa, M., Nomoto, K., Kariya, A., Hayashi, M., Kobayashi, S., Mizuno, K., Mayama, S., Shinozuka, T., Maruyama, T., Ogiwara, T., Okui, K., Higurashi, K., Ito, T., Miyata, Y., Tamura, T., Ikeda, S., Nakata, J., Oshima, H., Mori, S., Otsuka, Y., Oki, I., Tasaka, S., Yamahatsu, J., Inaba, E., Sanada, K., Oura, T., Kinoshita, T., Akagi, M., Katsuhisa, F., Misumi, A., Urashima, K., Ninomiya, S., Hukami, M., Mori, T., Matsuo, Y., Seki, A., Kitamura, T., Mori, H., Yokota, R., Kawashima, S., Itoshima, T., Shimada, Y., Itoshima, T., Inoue, T., Fukuhara, J., Kubota, M., Ohta, W., Ohta, W., Kagaya, T., Abe, R., Kai, Y., Katono, S., Komatsu, K., Masuda, H., Inoue, S., Arakawa, H., Hamajima, T., Kitamura, T., Nakagawa, F., Tamura, H., Kiyonaga, G., Inui, H., Asai, H., Hayashi, N., Obata, H., Toki, F., Kakae, U., Yamauchi, D., Hisamitsu, T., Aziki, K., Tamiya, M., Watanabe, S., Kurokawa, K., Takemoto, T., Murakami, S., Kessoku, Y., Kuwana, H., Hino, K., Kato, A., Ito, A., Arakawa, Y., Ohono, Y., Hase, M., Ariga, K., Usui, R., Kutsukake, S., Nagamori, S., Nagano, H., Shimano, K., Ohya, T., Kikuchi, S., Ito, M., Hidano, S., Banno, H., Tomura, A., Kato, K., Koyama, T., Komatsu, T., Takei, T., Tomimura, K., Yamauchi, M., Sato, G., Sato, R., Haga, M., Toyokawa, S., Yamamoto, J., Ohtomi, S., Ishibashi, Y., Fukuda, M., Endo, R., Ueno, Y., Hisamitsu, T., Sasaki, T., Kobayashi, C., Kusakari, T., Yajima, T., Maeda, M., Kotoda, K., Okuda, K., Ariga, H., Takazawa, G., Nakamura, Y., Ohbayashi, A., Mitsui, H., Nakata, K., Suematsu, T., Kashiwagi, T., Hayashi, N., Baba, T., Tobimatsu, Y., Kamada, T., Abe, H., Matsuoka, K., Matsushima, S., Kamisaka, Y., Kitsuki, T., Ohnuki, H., Fujii, M., Inoue, R., Yamamoto, T., Wakisaka, G., Nakagawa, S., Nagata, K., Takebayashi, J., Nagashima, H., Tanaka, N., Kanai, K., Oda, T., Katayama, T., Furukawa, Y., Miyasaki, R., Noguchi, M., Hirose, K., Maezawa, H., Kano, H., Hirano, K., Ogino, M., Nishiwaki, K., Aoki, T., Morishita, T., Funatsu, K., Morita, A., Okazaki, I., Matsuzaki, S., Oda, M., Asakura, H., Kamegaya, K., Tsuchiya, M., Sambe, K., Kawakami, H., Kunimasa, T., Aimitsu, A., Yamashita, S., Miyoshi, A., Enzan, H., Ikehara, K., Shiozaki, Y., Sameshima, Y., Mizuno, T., Sasakawa, M., Nagi, S., Nagata, T., Fuwa, H., Tatsumi, K., Komatsu, K., Ozeki, T., Kaneda, M., Otsuki, M., Tadaki, H., Miura, K., Yamagata, S., Iwamura, K., Yamanaka, I., Sugimoto, E., Yamazaki, Y., Shiraishi, I., Yamanaka, T., Koike, H., Shimura, S., Hirayama, Y., Nishikawa, H., Kawamura, T., Kamiyama, Y., Takeda, H., Kamano, Y., Kitamura, O., Yamaoka, Y., Nanbu, H., Ozawa, K., Takasan, H., Honjo, I., Itakura, H., Akanuma, Y., Kagaya, T., Kaito, I., Sato, S., Sahara, H., Arisue, T., Kashimura, K., Motoyama, W., Hayashi, H., Okuyama, S., Ito, S., Inagaki, T., Kato, Y., Kakumu, S., Kurokawa, S., Yamawaki, T., Kusakabe, A., Hara, T., Funayama, A., Takahashi, T., Furuta, S., Omori, A., Hanaoka, S., Nagata, A., Tsukioka, J., Kiyosawa, K., Akahane, Y., Koike, Y., Oda, M., Tanaka, K., Kojima, M., Kawaguchi, Y., Kimura, A., Osamura, H., Kurihara, N., Okabe, K., Fujisawa, K., Takahashi, T., Kitami, N., Namihisa, T., Yamaguchi, K., Hisauchi, T., Nambu, M., Iijima, K., Rin, K., Kuroda, H., Kobayashi, N., Inami, Y., Shiga, K., Kon, T., Yamada, T., Yamada, T., Mizoguchi, Y., Enomoto, T., Monna, T., Yamamoto, S., Morisawa, S., Imoto, S., Uchita, K., Yamasawa, Y., Hiraide, S., Hikita, G., Takatsuki, K., Okimoto, Y., Nakagawa, J., Ito, K., Hirayama, C., Kawasaki, H., Irisa, T., Arimura, K., Amagase, H., Shibasaki, K., Tashiro, S., Ichida, F., Tozawa, T., Ishii, M., Inoue, E., Ikehara, H., Baba, S., Miyaji, Y., Nakajima, K., Shimizu, T., Shimizu, Y., Ohnishi, S., Sasaki, S., Kinami, Y., Mizukami, T., Nishida, Y., Nakagawa, T., Ojima, T., Takeshita, Y., Yamashita, T., Furuto, T., Ono, T., Yamaguchi, K., Mizuno, S., Tsumori, K., Miyagi, K., Suga, Y., Tatsumi, S., Kitano, A., Makiishi, H., Mitani, E., Mohri, S., Kamata, T., Kobayashi, K., Yamamoto, S., Yoshii, T., Takemoto, T., Suzuki, H., Hiratsuka, H., Takada, K., Maruyama, M., Takemoto, T., Suzuki, H., Katsu, K., Nomura, M., Kiyama, T., Hirabayashi, H., Yamashita, H., Masuyama, S., Takehara, Y., Sato, T., Abe, H., Sugiura, M., Shima, F., Ichihara, S., Yamasaki, Z., Fukuzawa, S., Horiguchi, Y., Takeda, T., Nakano, S., Kitamura, K., Miwa, M., Suzuke, T., Okada, K., Nakamura, T., Kikuchi, T., Mishima, K., Mandai, M., Kondo, H., Yamagata, Y., Uchida, Y., Harada, H., Nishizawa, M., Nomoto, K., Kariya, A., Ueno, M., Hayashi, M., Kobayashi, S., Mizuno, K., Shinozuka, T., Maruyama, T., Ogiwara, T., Okui, K., Miyake, N., Okada, M., Takahashi, K., Koizumi, H., Hayashi, T., Maeda, H., Abe, M., Takahashi, I., Matsumoto, M., Unoura, T., Iwasaki, A., Hattori, T., Tanaka, M., Hara, T., Sato, H., Hirashima, T., Shioda, A., Kawamura, I., Muto, M., Tsuchiya, R., Sato, Y., Ozawa, T., Hatano, T., Arae, H., Sekine, T., Tsukamoto, M., Shiratori, T., Asaki, S., Oba, E., Yamagata, H., Kobiyama, M., Hisamichi, S., Kitagawa, M., Kobayashi, N., Kurosawa, T., Tokimatsu, S., Kawasaki, S., Iwasa, A., Nagashima, K., Kodeki, K., Hoshizawa, T., Murakami, H., Yagi, T., Matsuda, T., Iwazaki, T., Suzuki, Y., Taketomi, H., Akaike, Y., Naramoto, J., Tsuru, T., Inoue, M., Nagase, T., Kato, K., and Kohyama, K.

Published
1973
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35. Efficacy of orally administered fluralaner in dogs against laboratory challenge with Haemaphysalis longicornis ticks

Author

Masanori Toyota, Kyoko Hirama, Tatsumi Suzuki, Rob Armstrong, and Tatsuyuki Okinaga

Subjects
Haemaphysalis longicornis, Dogs, Fluralaner, Infectious and parasitic diseases, RC109-216
Abstract

Abstract Background Haemaphysalis longicornis ticks represent an ectoparasitic health threat to dogs. This study evaluated the immediate and persistent efficacy of orally administered fluralaner for control of this tick. Methods Twenty-four dogs were sorted into 4 groups based on their tick carrying capacity measured in a preliminary challenge. Two days before treatment, dogs were challenged with Haemaphysalis longicornis and then at the time of treatment dogs received with oral fluralaner at 10, 25 or 50 mg/kg respectively to 3 of the groups, while the remaining group was sham treated. Ticks were counted and categorized on all dogs 2 days after treatment (4 days after challenge). Tick challenges were repeated at 28, 56, 84 and 112 days following treatment with tick counts 48 hours following each challenge. Tick control efficacy was evaluated by comparing the mean (geometric) total live attached and dead engorged ticks on each fluralaner treated group with the sham treated dogs. Results Oral fluralaner is highly acaricidal for H. longicornis that feed on treated dogs. The mean efficacy rate in dogs treated with fluralaner at the commercial dose range of 25 to 50 mg/kg was greater than 90% at 114 days after treatment, whereas efficacy at this time in dogs treated at 10 mg/kg was 79%. Conclusions Fluralaner administered orally to dogs within the commercial dose range at 25 to 50 mg/kg is effective for up to 114 days against laboratory challenge with H. longicornis ticks.

Published
2019
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46. Environmental risk factors for pulmonary Mycobacterium avium-intracellulare complex disease.

Author

Maekawa K, Ito Y, Hirai T, Kubo T, Imai S, Tatsumi S, Fujita K, Takakura S, Niimi A, Iinuma Y, Ichiyama S, Togashi K, Mishima M, Maekawa, Koichi, Ito, Yutaka, Hirai, Toyohiro, Kubo, Takeshi, Imai, Seiichiro, Tatsumi, Shuji, and Fujita, Kohei

Subjects
LUNG diseases, MICROBIAL ecology, MYCOBACTERIAL diseases, RESPIRATORY infections, ENVIRONMENTAL exposure, CASE-control method
Abstract

Background: Mycobacterium avium-intracellulare complex (MAC) is a ubiquitous pathogen found in soil and water. Environmental exposure is the primary route for MAC infection. However, specific environmental risk factors have been poorly determined in immunocompetent patients with pulmonary MAC disease.Methods: A case-control study was performed with 106 patients with pulmonary MAC disease (men [women], 23 [83]; age, 64.3 ± 9.2 years) and 53 age-matched control patients with bronchiectasis but not pulmonary MAC infection (men [women], 7[46]; age, 63.0 ± 11.0 years). All participants completed a standardized questionnaire that included questions about medical history, smoking history, alcohol usage, age at menopause, and environment exposures. Environment exposures included soil exposure from farming or gardening; water exposure from bathing, showering, hot tub use, dishwashing, swimming, and drinking water; and pet exposure.Results: No differences were identified in the patient characteristics and underlying diseases. More case patients experienced high soil exposure (≥ 2 per week) than control patients (23.6% vs 9.4%, P = .032); this remained significant after multivariate analysis (OR, 5.9; 95% CI, 1.4-24.7; P = .015). There were no significant differences in other environmental exposures. Case patients with high soil exposure were significantly older than those with low soil exposure (67.3 ± 7.3 years vs 64.3 ± 9.5 years, P = .037). Other characteristics, underlying diseases, and mycobacterial species did not differ between the two groups.Conclusions: Patients with pulmonary MAC disease had significantly more soil exposure than noninfected control patients, which suggests that environmental soil exposure is a likely risk factor for the development of pulmonary MAC disease. [ABSTRACT FROM AUTHOR]

Published
2011
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