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1,313 results on '"Aizawa, H."'

4. Bifurcation Mechanism at a Sustain Point of a Long Narrow Economy.

Author

Ikeda, K., Aizawa, H., and Gaspar, J. M.

Subjects
*RELIEF models, *ECONOMIC geography, *ODD numbers, *CITIES & towns, *ECONOMIC models
Abstract

In this paper, we investigate population agglomeration in a long narrow economy, in which an odd number of places are evenly distributed over a line segment. The bifurcation analysis of this economy elucidates the mechanism of the emergence of twin cities around the central city. The validity and usefulness of this analysis are confirmed using several well-known economic geography models that display various kinds of bifurcation behaviors. By this analysis, we investigate the historical change in the population distribution in a chain of cities on Japan's Main Island. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Thermoelectric figure of merit of tau-type conductors of several donors

Author

Yoshino, H., Aizawa, H., Kuroki, K., Anyfantis, G. C., Papavassiliou, G. C., and Murata, K.

Subjects
Condensed Matter - Materials Science
Abstract

Dimensionless thermoelectric figure of merit $ZT$ is investigated for two-dimensional organic conductors $\tau-(EDO-S,S-DMEDT-TTF)_2(AuI_2)_{1+y}$, $\tau$-(EDT-S,S-DMEDT-TTF)_2(AuI_2)_{1+y}$ and $\tau$-(P-S,S-DMEDT-TTF)_2(AuI_2)_{1+y}$ ($y \le 0.875$), respectively. The $ZT$ values were estimated by measuring electrical resistivity, thermopower and thermal conductivity simultaneously. The largest $ZT$ is 2.7 $\times$ 10$^{-2}$ at 155 K for $\tau-(EDT-S,S-DMEDT-TTF)_2(AuI_2)_{1+y}$, 1.5 $\times$ 10$^{-2}$ at 180 K for $\tau-(EDO-S,S-DMEDT-TTF)_2(AuI_2)_{1+y}$ and 5.4 $\times$ 10$^{-3}$ at 78 K for $\tau-(P-S,S-DMEDT-TTF)_2(AuI_2)_{1+y}$, respectively. Substitution of the donor molecules fixing the counter anion revealed EDT-S,S-DMEDT-TTF is the best of the three donors to obtain larger $ZT$., Comment: proceedings of ISCOM 2009 (to be published in Physica B)

Published
2010
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6. Clinical characteristics and outcomes in Japanese patients with COPD according to the 2017 GOLD classification: the Ishinomaki COPD Network Registry

Author

Kobayashi S, Hanagama M, Ishida M, Sato H, Ono M, Yamanda S, Yamada M, Aizawa H, and Yanai M

Subjects
COPD, GOLD, GOLD 2017, exacerbations, mortality, Diseases of the respiratory system, RC705-779
Abstract

Seiichi Kobayashi,1 Masakazu Hanagama,1 Masatsugu Ishida,1 Hikari Sato,1 Manabu Ono,1 Shinsuke Yamanda,1 Mitsuhiro Yamada,2 Hiroyuki Aizawa,1 Masaru Yanai1 1Department of Respiratory Medicine, Japanese Red Cross Ishinomaki Hospital, Ishinomaki, Miyagi, Japan; 2Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai, Miyagi, Japan Purpose: The GOLD report provides a framework for classifying COPD in a way that reflects its clinical impact and allows treatment recommendations. The GOLD 2017 proposes a new classification whereby patients are grouped as A–D according to their symptoms and history of exacerbations. However, the clinical characteristics and outcomes in these patients are not well documented.Patients and methods: In this prospective observational study, we analyzed data from the Ishinomaki COPD Network Registry. All patients with stable COPD were classified into the four groups defined by GOLD 2017. The patient demographics, clinical characteristics, number of exacerbations, and mortality rate during 1 year of follow-up were compared between the groups.Results: Four hundred and one patients with stable COPD were identified. There were 240 patients (59.9%) in group A, 122 (30.4%) in group B, 16 (4.0%) in group C, and 23 (5.7%) in group D. Patients in groups B, C, and D had ORs of 2.95, 3.92, and 5.45, respectively, for risk of exacerbation relative to group A. Groups C and D experienced exacerbations more frequently, including exacerbations leading to hospital admission, than groups A and B (both P

Published
2018

9. Competitive and cost effective copper/low-k interconnect (BEOL) for 28 nm CMOS technologies

Author

Augur, R., Child, C., Ahn, J.H., Tang, T.J., Clevenger, L., Kioussis, D., Masuda, H., Srivastava, R., Oda, Y., Oguma, H., Quon, R., Kim, B., Sheng, H., Hirooka, S., Gupta, R., Thomas, A., Singh, S.M., Fang, Q., Schiwon, R., Hamieh, B., Wornyo, E., Allen, S., Kaltalioglu, E., Ribes, G., Zhang, G., Fryxell, T., Ogino, A., Shimada, E., Aizawa, H., Minda, H., Kim, S.O., Oki, T., Fujii, K., Pallachalil, M., Takewaki, T., Hu, C.K., Sundlof, B., Permana, D., Bolom, T., Engel, B., Labelle, C., Sapp, B., Nogami, T., Simon, A., Shobha, H., Gates, S., Ryan, E.T., Bonilla, G., Daubenspeck, T., Shaw, T., Osborne, G., Grill, A., Edelstein, D., Restaino, D., Molis, S., Spooner, T., Ferreira, P., Biery, G., and Sampson, R.

Published
2012
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42. Contraction and depolarization induced by fetal bovine serum in airway smooth muscle

Author

Abdullah, N.A., Hirata, M., Matsumoto, K., Aizawa, H., Inoue, R., Hamano, S., Ikeda, S., Xie, Z., Hara, N., and Ito, Y.

Subjects
Airway obstruction (Medicine) -- Research, Serotonin -- Physiological aspects, Biological sciences
Abstract

Fetal bovine serum (FBS) contains S. hydroxy tryptamine (5HT) and an unknown factor that evokes a prolonged increase in muscle tone of the airway smooth muscle cells. 5HT is synthesized in the platelets during the process of serum production. The unknown factor includes phosphatidic acid (PA) and lyso-PA but the resulting amplitude of prolonged contraction is less compared to that caused by 5HT.

Published
1994

48. An essay on diabetes from a biochemist

Author

Aizawa H

Subjects
Biochemist, medicine.medical_specialty, business.industry, Diabetes mellitus, Family medicine, medicine, medicine.disease, business
Published
2018

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