著者

田中 真理子 縄田 秀幸 永井 宏 田中 謙太郎 浦島 創 矢野 里佳 西村 良二 Tanaka Mariko Nawata Hideyuki Nagai Hiroshi Tanaka Kentaro Urashima Hajime Yano Rika Nishimura Ryoji

出版者

福岡大学研究推進部

雑誌

福岡大学医学紀要 = Medical Bulletin of Fukuoka University (ISSN:03859347)

巻号頁・発行日

vol.40, no.1-2, pp.47-53, 2013-06

著者

Rommaneeya LEELA-ARPORN Hiroshi OHTA Genya SHIMBO Noboru SASAKI Mitsuyoshi TAKIGUCHI

出版者

JAPANESE SOCIETY OF VETERINARY SCIENCE

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

pp.21-0218, (Released:2021-07-06)

被引用文献数

2

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The size of canine focal liver lesions (FLLs) is known to be one of the predicting criteria for malignancy. However, there are discrepancies for the measurement of maximum lesion size, resulting in contradicting results among studies and incidences of false positive outcomes. Thus far, the morphometric changes of FLLs for distinguishing malignancy from benignancy remains undocumented. This study aimed to investigate morphometric characteristics of FLLs using computed tomography (CT). CT images of 40 dogs with histopathological confirmation of 49 liver lesions, including 39 hepatocellular carcinomas and 10 nodular hyperplasias were retrospectively reviewed. The morphometric parameters including size (long and short axis diameters measured on transverse image), shape (measured by long to short axis (L/S) ratio), volume, and surface appearance of a liver lesion were evaluated using univariate and stepwise multivariate analyses, respectively. The results of univariate analysis showed that long and short axis diameters, L/S ratio, volume, and surface appearance of a lesion were significantly different between hepatocellular carcinomas and nodular hyperplasias. Multivariate analysis revealed that short axis diameter (>3.30 cm; odds ratio (OR): 36.1, 95% confidence interval (CI): 3.36–387.05, P=0.0031) and L/S ratio (>1.23; OR: 18.1, 95% CI: 1.61–205.12, P=0.0191) were independent predictors of malignancy, with the area under the curve of 0.9154. These results suggest that the combination of short axis diameter and L/S ratio is a promising tool for predicting liver malignancy with outstanding discriminating ability.

著者

仁木 滉 加藤 常員 鎌木 義昌 小沢 一雅 ニキ ヒロシ カトウ ツネカズ カマキ ヨシマ オザワ カズマサ Hiroshi Niki Tunekazu Kato Yoshimasa Kamaki Kazumasa Ozawa

雑誌

岡山理科大学紀要. A, 自然科学

巻号頁・発行日

vol.21, pp.1-15, 1985

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This paper presents an associative restoration system that creates the restoed shape of a given distorted ancient pottery in terms of its plane figure (silhouette). The system has been implemented on the VAX11/780 computer system, based on a mathematical modeling of the associatve memory and additional processing techniques. One of the aims is to reduce archaeologists' labor spent in drawing a huge number of plane figures corresponding to finds given by excaticns. In our computer simulation, we use 14 types of silhouttes of the "Sueki", Japanese ancient potteries, as the test figures. The results of the simulation are presented and also are discussed in relation to the system performance and archaeology.

著者

戸根 裕士 Hiroshi Tone

出版者

基督教研究会

雑誌

基督教研究 (ISSN:03873080)

巻号頁・発行日

vol.79, no.1, pp.41-56, 2017-06

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当論文では『初期三世紀ギリシャ・キリスト教著作家全集』の編集に対するアドルフ・フォン・ハルナックの影響の所在を特定する。本来この編集作業は文献学又は歴史学の手続きで遂行されるはずが、ハルナックの独自の神学的関心がその編集に伺えると先行研究では指摘されてきた。そこで本論では先ず、ハルナックの想定する著作の選定基準とその影響を分析したい。次に校訂済みの各巻を承認する際の要点を整理する。その結果、この編集に関するハルナック独自の神学的関心を特定することは困難である点が判明する。その上で、その編集に対するハルナックの影響に関して言えば、部分的に必要な作業を適任者に委嘱して協働を試み、国家の要望に沿う計画を立案して資金を獲得した点に影響があるといえる。論文(Article)

著者

Junko SUZUKI Yohei NISHIO Yuki KAMEO Yutaka TERADA Ryusei KUWATA Hiroshi SHIMODA Kazuo SUZUKI Ken MAEDA

出版者

公益社団法人 日本獣医学会

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

vol.77, no.11, pp.1457-1463, 2015 (Released:2015-12-01)

参考文献数

28

被引用文献数

3 18

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In 2007–2008, a canine distemper virus (CDV) epidemic occurred among wild animals in Wakayama Prefecture, Japan, and many mammals, including the wild boar and deer, were infected. In this study, CDV prevalence among wild animals was surveyed before and after the epidemic. At first, an enzyme-linked immunosorbent assay (ELISA) with horseradish peroxidase-conjugated protein A/G was established to detect CDV antibodies in many mammalian species. This established ELISA was available for testing dogs, raccoons and raccoon dogs as well as virus-neutralization test. Next, a serological survey of wild mammalians was conducted, and it was indicated that many wild mammalians, particularly raccoons, were infected with CDV during the epidemic, but few were infected before and after the epidemic. On the other hand, many raccoon dogs died during the epidemic, but CDV remained prevalent in the remaining population, and a small epidemic occurred in raccoon dogs in 2012–2013. These results indicated that the epidemic of 2007–2008 may have been intensified by transmission to raccoons.

著者

Satoru Nishida Souichiro Nishino Masahiko Sekine Yuuki Oka Stefanus Harjo Takuro Kawasaki Hiroshi Suzuki Yukio Morii Yoshinobu Ishii

出版者

The Japan Institute of Metals and Materials

雑誌

MATERIALS TRANSACTIONS (ISSN:13459678)

巻号頁・発行日

vol.62, no.5, pp.667-674, 2021-05-01 (Released:2021-04-25)

参考文献数

19

被引用文献数

5

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In this study, we used neutron diffraction to analyze in a non-destructive method the distribution of internal residual stress in a free-cutting steel bar processed by cold drawing and straightening. Since a change in lattice-plane spacing occurs in a strain-free standard sample used as a reference due to the cold-drawing and straightening processes, it was necessary for the sake of improving measurement accuracy to prepare strain-free standard samples for each individual process. As a result, the residual stresses were successfully measured with excellent stress balance. The residual stresses generated by the cold-drawing process were reduced by subsequent straightening, and the distribution of residual stresses by finite element method (FEM) simulation was consistent with the measured values by neutron diffraction. As a result of the FEM analysis, it is assumed that the rod was subjected to strong tensile strains in the axial direction during the drawing process, and the residual stresses were generated when the rod was unloaded. Those residual stresses were presumably reduced by the redistribution of residual stresses in the subsequent straightening process.

著者

Yousuke Hashimoto Yukio Ozaki Shino Kan Koichi Nakao Kazuo Kimura Junya Ako Teruo Noguchi Satoru Suwa Kazuteru Fujimoto Kazuoki Dai Takashi Morita Wataru Shimizu Yoshihiko Saito Atsushi Hirohata Yasuhiro Morita Teruo Inoue Atsunori Okamura Toshiaki Mano Minoru Wake Kengo Tanabe Yoshisato Shibata Mafumi Owa Kenichi Tsujita Hiroshi Funayama Nobuaki Kokubu Ken Kozuma Shiro Uemura Tetsuya Tobaru Keijiro Saku Shigeru Oshima Satoshi Yasuda Tevfik F Ismail Takashi Muramatsu Hideo Izawa Hiroshi Takahashi Kunihiro Nishimura Yoshihiko Miyamoto Hisao Ogawa Masaharu Ishihara on behalf of J-MINUET Investigators

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-20-1115, (Released:2021-06-03)

参考文献数

31

被引用文献数

19

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Background:The impact of chronic kidney disease (CKD) on long-term outcomes following acute myocardial infarction (AMI) in the era of modern primary PCI with optimal medical therapy is still in debate.Methods and Results:A total of 3,281 patients with AMI were enrolled in the J-MINUET registry, with primary PCI of 93.1% in STEMI. CKD stage on admission was classified into: no CKD (eGFR ≥60 mL/min/1.73 m2); moderate CKD (60>eGFR≥30 mL/min/1.73 m2); and severe CKD (eGFR <30 mL/min/1.73 m2). While the primary endpoint was all-cause mortality, the secondary endpoint was major adverse cardiac events (MACE), defined as a composite of all-cause death, cardiac failure, myocardial infarction (MI) and stroke. Of the 3,281 patients, 1,878 had no CKD, 1,073 had moderate CKD and 330 had severe CKD. Pre-person-days age- and sex-adjusted in-hospital mortality significantly increased from 0.014% in no CKD through 0.042% in moderate CKD to 0.084% in severe CKD (P<0.0001). Three-year mortality and MACE significantly deteriorated from 5.09% and 15.8% in no CKD through 16.3% and 38.2% in moderate CKD to 36.7% and 57.9% in severe CKD, respectively (P<0.0001). C-index significantly increased from the basic model of 0.815 (0.788–0.841) to 0.831 (0.806–0.857), as well as 0.731 (0.708–0.755) to 0.740 (0.717–0.764) when adding CKD stage to the basic model in predicting 3-year mortality (P=0.013; net reclassification improvement [NRI] 0.486, P<0.0001) and MACE (P=0.046; NRI 0.331, P<0.0001) respectively.Conclusions:CKD remains a useful predictor of in-hospital and 3-year mortality as well as MACE after AMI in the modern PCI and optimal medical therapy era.

著者

加藤 仲幸 藤原 淳 本田 俊夫 種市 洋 Nakayuki Kato Atsushi Fujiwara Toshio Honda Hiroshi Taneichi 獨協医科大学整形外科学 獨協医科大学整形外科学 獨協医科大学整形外科学 獨協医科大学整形外科学 Dept. of Orthop. Dokkyo Medical University School of Medicine Dept. of Orthop. Dokkyo Medical University School of Medicine Dept. of Orthop. Dokkyo Medical University School of Medicine Dept. of Orthop. Dokkyo Medical University School of Medicine

雑誌

Dokkyo journal of medical sciences (ISSN:03855023)

巻号頁・発行日

vol.34, no.2, pp.85-93, 2007-07-01

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【目的】腰椎可動性の評価は腰痛性疾患の診断や治療効果判定に際し重要である.簡単な取り付け器具で体幹に装着し, X線撮影なしに腰椎可動域を評価できる簡易腰椎可動域測定器を開発し,測定データの正確性および信頼性を評価したので報告する.【方法】簡易腰椎可動域測定器は,金属製の固定板,その中央に垂直に取り付けられた計測バー,固定板を体幹に確実に固定するゴムバンドより構成されている.第12胸椎と仙骨上の体幹背面に装着した測定器による可動域と実際の腰椎可動域をX線およびCTを用いて計測し,正確性,測定者間および測定者内の一致度および再現性を検討した.【結果】前後屈および回旋可動域に関しては測定値とX線計測値はよく相関し,かつ,その平均値に有意差はないことから正確性は良好であった.一方,前後屈の各体位における測定値とX線計測値には有意差があること,各回旋位の計測値の相関関係にはばらつきが多かったことから,本測定器は腰椎の肢位をX線と同様に捉えていなかった.また,側屈可動域に関しては,測定値とX線計測値の相関は前後屈や回旋より劣り,かつ,その計測値にも有意差が見られたことから,側屈可動域に関する本測定器の正確性は不十分であった.さらに,測定者間および測定者内一致度はすべての項目で高く再現性も認められた.【結論】前後屈および回旋可動域は簡易腰椎可動域測定器により低コストで簡便に測定でき,その正確性や信頼性も優れていた.

著者

Hiroshi Okada Mitsuko Onda Masaki Shoji Naoki Sakane Yasushi Nakagawa Takashi Sozu Yui Kitajima Ross T. Tsuyuki Takeo Nakayama

出版者

International Research and Cooperation Association for Bio & Socio-Sciences Advancement

雑誌

BioScience Trends (ISSN:18817815)

巻号頁・発行日

pp.2017.01256, (Released:2017-12-18)

参考文献数

30

被引用文献数

11 28

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The COMmunity Pharamcists ASSist for Blood Pressure (COMPASS-BP) study aimed to assess the effectiveness of lifestyle support programs administered in community pharmacies on hypertension control. This open-label, two-armed parallel group, cluster-randomized controlled trial included 73 pharmacies (clusters) in Japan randomized to a control or intervention group. Eligible hypertensive patients (n = 125), aged 20-75 years, received the intervention (n = 64) or the control treatment (n = 61), as dictated by their pharmacy randomization. Patients in the intervention group received brochures and healthy lifestyle advice from pharmacists using motivational interviewing methods during pharmacy visits over a 12-week period, with their usual pharmacy care. Conversely, the control group just received usual care. The main outcome measure was a change in morning systolic blood pressure (SBP) from baseline to week 12. The intervention group exhibited a decrease in morning SBP that was 6.0 mmHg greater than that of the control group (95% confidence interval [CI]: −11.0 to −0.9, p = 0.021). In a mixed-effect model for repeated measures analysis, the intergroup difference in morning SBP decrease was −4.5 mmHg (95% CI: −8.5 to −0.6, p = 0.024). Our findings indicate that implementation of a lifestyle advice program in pharmacies is feasible and may lead to reduced blood pressure.

著者

Yutaka Maruyama Hiroshi Takano Ayori Mitsutake

出版者

The Biophysical Society of Japan

雑誌

Biophysics and Physicobiology (ISSN:21894779)

巻号頁・発行日

vol.16, pp.407-429, 2019 (Released:2019-11-29)

参考文献数

182

被引用文献数

6

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Molecular dynamics simulation is a fruitful tool for investigating the structural stability, dynamics, and functions of biopolymers at an atomic level. In recent years, simulations can be performed on time scales of the order of milliseconds using specialpurpose systems. Since the most stable structure, as well as meta-stable structures and intermediate structures, is included in trajectories in long simulations, it is necessary to develop analysis methods for extracting them from trajectories of simulations. For these structures, methods for evaluating the stabilities, including the solvent effect, are also needed. We have developed relaxation mode analysis to investigate dynamics and kinetics of simulations based on statistical mechanics. We have also applied the three-dimensional reference interaction site model theory to investigate stabilities with solvent effects. In this paper, we review the results for designing amino-acid substitution of the 10-residue peptide, chignolin, to stabilize the misfolded structure using these developed analysis methods.

著者

Hiroshi Kadowaki Hiroshi Akazawa Junichi Ishida Issei Komuro

出版者

Japan Medical Association / The Japanese Associaiton of Medical Sciences

雑誌

JMA Journal (ISSN:2433328X)

巻号頁・発行日

vol.4, no.2, pp.91-98, 2021-04-15 (Released:2021-05-07)

参考文献数

56

被引用文献数

11

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Onco-cardiology recently emerged as a novel discipline to provide effective cardioprotective care against cancer therapeutics-related cardiac adverse events (CAEs) and support the continuity of optimal cancer treatment. Immune checkpoint inhibitors (ICIs) have revolutionized cancer therapy and dramatically improved outcomes in patients with advanced or refractory cancers. However, ICIs intrinsically stimulate systemic immune responses and can potentially induce a spectrum of immune-related adverse events (irAEs), which can affect any organs of the body. The manifestation of cardiac irAEs includes myocarditis, arrhythmias and conduction abnormalities, and pericardial diseases. Takotsubo-like cardiomyopathy is also included as a manifestation of ICI-related CAEs, but the pathophysiological relevance is unclear. Although the incidence is rare, ICI-related CAEs are life-threatening and potentially fatal. Elucidating pathophysiology and establishing management measures of ICI-related CAEs are one of the most urgent challenges in the field of onco-cardiology.

著者

Hiroshi Ueda Sakiko Orui Sakaguchi

出版者

The Plankton Society of Japan, The Japanese Association of Benthology

雑誌

Plankton and Benthos Research (ISSN:18808247)

巻号頁・発行日

vol.14, no.1, pp.29-38, 2019-02-27 (Released:2019-03-12)

参考文献数

26

被引用文献数

3

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The brackish-water calanoid copepod known as Pseudodiaptomus inopinus in the mainland of Japan consists of two genetically separate species. One is P. japonicus, which was once synonymized with P. inopinus but was recently revived. This paper describes the other species as Pseudodiaptomus yamato n. sp., which is confirmed to have morphological differences from P. inopinus s.s. based on specimens from the type locality (Lake Taihu, China) of the latter. We also redescribe P. japonicus and P. inopinus s.s. for comparative purposes. The three species are distinguishable by the combination of the following morphologies: 1) weak or prominent posterior round projections of the female last pediger; 2) relative length of posterior processes of the female genital operculum; 3) presence or absence of medial spinules on the first exopodal segment of the female leg 5; and 4) the size of spinules at the center of the ventral surface of the male second urosomite. Significant inter-population variation is observed in some spinules of P. japonicus. The past and present records indicate that Pseudodiaptomus yamato n. sp. is endemic to Japan and confined to the coasts affected by the warm Kuroshio Current from western Kyushu to the middle of Honshu, while P. japonicus is widespread in northern East Asia without overlapping the range of P. yamato n. sp. The range of Pseudodiaptomus inopinus s.s. most certainly does not extend to those of P. yamato n. sp. and P. japonicus.

著者

Azusa Ono Kyoko Hiwasa-Tanase Satoko Nonaka Hiroshi Ezura

出版者

Japanese Society for Plant Biotechnology

雑誌

Plant Biotechnology (ISSN:13424580)

巻号頁・発行日

vol.38, no.1, pp.161-165, 2021-03-25 (Released:2021-03-25)

参考文献数

21

被引用文献数

2

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The taste-modifying protein miraculin (MIR) has received increasing interest as a new low-calorie sweetener. In our previous study using the tomato variety ‘Micro-Tom,’ it was shown that in transgenic tomatoes in which MIR was expressed by using the cauliflower mosaic virus 35S promoter (p35S) and a heat shock protein terminator (tHSP) cassette (p35S-MIR-tHSP), higher levels of miraculin accumulated than when MIR was driven by the nopaline synthase terminator (tNOS) cassette (p35S-MIR-tNOS). ‘Micro-Tom’ is a dwarf tomato used for research and shows a low yield. To achieve high productivity of MIR, it is essential to improve the MIR accumulation potential by using high-yielding cultivars. In this study, we evaluate whether the high MIR accumulation trait mediated by the tHSP appears even when fruit size increases. A line in which the p35S-MIR-tHSP cassette was introduced into a high-yielding variety was bred by backcrossing. The line homozygous for MIR showed higher accumulation of MIR than the heterozygous line. Despite large differences in fruit size, the MIR level in the backcross line was similar to that in the p35S-MIR-tHSP line (background ‘Micro-Tom’). It was approximately 3.1 times and 4.0 times higher than those in miracle fruits and the p35S-MIR-tNOS tomato line 5B (‘Moneymaker’ background, which exhibits the highest miraculin productivity achieved thus far), respectively. These results demonstrate that the high MIR accumulation trait mediated by the tHSP appears even when fruit size is increased.

著者

大山 聖 永井 大樹 藤田 昂志 安養寺 正之 岡本 正人 江 光希 金崎 雅博 高野 敦 水上 諒 竹内 伸介 安部 明雄 佐々 修一 布田 翼 満武 勝嗣 得竹 浩 火星探査航空機リサーチグループ Oyama Akira Nagai Hiroki Fujita Koji Anyoji Masayuki Okamoto Masato Koh Mitsuki Kanazaki Masahiro Takano Atsushi Mizukami Ryo Takeuchi Shinsuke Abe Akio Sasa Shuichi Futa Tsubasa Mitsutake Katsushi Tokutake Hiroshi

出版者

宇宙航空研究開発機構宇宙科学研究所(JAXA)(ISAS)

雑誌

大気球シンポジウム: 平成30年度 = Balloon Symposium: 2018

巻号頁・発行日

2018-11

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大気球シンポジウム 平成30年度(2018年11月1-2日. 宇宙航空研究開発機構宇宙科学研究所 (JAXA)(ISAS)), 相模原市, 神奈川県

著者

Nobuyuki Sakayori Hisanori Tokuda Kaichi Yoshizaki Hiroshi Kawashima Sheila M. Innis Hiroshi Shibata Noriko Osumi

出版者

Tohoku University Medical Press

雑誌

The Tohoku Journal of Experimental Medicine (ISSN:00408727)

巻号頁・発行日

vol.240, no.1, pp.31-37, 2016 (Released:2016-08-24)

参考文献数

29

被引用文献数

8 19

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Omega-6 (n-6) and omega-3 (n-3) polyunsaturated fatty acids (PUFAs) are essential nutrients for normal brain development. The principal dietary n-6 and n-3 PUFAs are linoleic acid (LA) and α-linolenic acid (ALA), respectively, We have previously shown that maternal dietary imbalance between these PUFAs, i.e., rich in LA and poor in ALA, affected brain development and increased anxiety-related behavior in the mouse offspring. Here we further addressed sex difference in anxiety-related behavior in the offspring exposed to maternal LA:ALA imbalance. We fed pregnant mice a LA excess/ALA deficient (LAex/ALAdef) diet, and raised their offspring on a well-balanced LA:ALA diet from an early lactation period. When the offspring were grown to adulthood, they were subjected to behavioral and biochemical analyses. We found that both male and female offspring exposed to the LAex/ALAdef diet showed increased anxiety-related behavior compared to those exposed to the control diet, which was differently observed between the sexes. The female offspring also exhibited hyperactivity by maternal intake of the LAex/ALAdef diet. On the other hand, abnormal depressive behavior was undetected in both sexes. We also found that the ratio of n-6 to n-3 PUFAs in the brain was unaffected regardless of maternal diet or offspring’s sex. Since the n-6/n-3 ratio is known to influence emotional behavior, it is reasonable to assume that LA:ALA imbalance exposed during brain development is the key for causing enhanced anxiety in adulthood. The present study indicates that maternal dietary imbalance between LA and ALA increases offspring’s anxiety-related behavior with a sex-dependent manner.

著者

Atsushi Hozawa Takumi Hirata Hiroshi Yatsuya Yoshitaka Murakami Shinichi Kuriyama Ichiro Tsuji Daisuke Sugiyama Atsushi Satoh Sachiko Tanaka-Mizuno Katsuyuki Miura Hirotsugu Ueshima Tomonori Okamura

出版者

Japan Epidemiological Association

雑誌

Journal of Epidemiology (ISSN:09175040)

巻号頁・発行日

vol.29, no.12, pp.457-463, 2019-12-05 (Released:2019-12-05)

参考文献数

20

被引用文献数

7 17

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Background: We sought to investigate the optimal values of BMI for the lowest risk of all-cause death and whether the optimal BMI differs according to smoking status in large-scale pooled analysis of 13 Japanese cohorts.Methods: Data from 179,987 participants of 13 well-qualified cohort studies conducted throughout Japan were used for our analysis. A cohort-stratified Cox proportional hazard model was used. P values for interactions were calculated based on the cross product of BMI and age, sex, or smoking status.Results: In the entire study population, all-cause mortality risk was lowest when the BMI was 22.0–24.9 kg/m2. This was also the case for selected healthy participants (never smoked, baseline total cholesterol level ≥4.1 mmol/L; the first 5 years of follow-up data were excluded). No effect modification of age, sex, or smoking status was observed. Regardless of their BMI, never smokers always had a lower all-cause mortality risk than did current smokers even with an ideal BMI in terms of mortality risk.Conclusion: A BMI of 22–24.9 kg/m2 correlated with the lowest risk of mortality, regardless of whether all participants or selected healthy participants were analyzed. The fact that smoking was more strongly associated with mortality than obesity emphasizes the urgency for effective anti-smoking programs.

著者

Naoshi Hirata Shiro Ohmi Shin'ichi Sakai Kei Katsumata Satoshi Matsumoto Tetsuo Takanami Akira Yamamoto Takashi Iidaka Taku Urabe Mayumi Sekine Tooru Ooida Fumihito Yamazaki Hiroshi Katao Yasuhiro Umeda Masao Nakamura Norihiko Seto Takeshi Matsushima Hiroshi Shimizu Japanese University Group of the Urgent Joint

出版者

The Seismological Society of Japan, The Volcanological Society of Japan, The Geodetic Society of Japan

雑誌

Journal of Physics of the Earth (ISSN:00223743)

巻号頁・発行日

vol.44, no.4, pp.317-328, 1996 (Released:2009-04-30)

参考文献数

21

被引用文献数

41 43

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A disastrous earthquake with a magnitude of 7.2 hit the southern part of Hyogo Prefecture on January 17, 1995. The mainshock was located on an active fault of the Arima-Takatsuki-Rokko fault system. Its focal mechanism was consistent with a right-lateral strike-slip fault trending N40°E. Three days after the occurrence of the mainshock, we started to install a highly dense seismic array in and around the fault area of the quake. Two permanent regional seismic networks of more than 30 stations covered the entire area of 200 km × 200 km. The temporarily installed array of 27 stations spanned the fault area of 15 km × 50 km. All data were telemetered to a temporary observation center at Uji. We located about 3, 100 aftershocks in real time for 1 month using an Internet connection between seismic networks. The aftershock area extended 70 km trending northeast to southwest. Hypocenters determined by the network were delivered automatically through the Internet. We found that the aftershock distribution was heterogeneous in space and time: seven clusters of hypocenters were identified and temporary variation in the rate of occurrence of aftershocks had a periodic component with periods of a half of day, 1 day, and 3 days, that are superimposed on decaying of the rate following Omori's law.

著者

Yuki Igarashi Miki Takahashi Tomoaki Tsutsumi Koichi Inoue Hiroshi Akiyama

出版者

The Pharmaceutical Society of Japan

雑誌

Chemical and Pharmaceutical Bulletin (ISSN:00092363)

巻号頁・発行日

vol.69, no.3, pp.286-290, 2021-03-01 (Released:2021-03-01)

参考文献数

26

被引用文献数

7

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Monitoring analysis of 14 per- and polyfluoroalkyl substances (PFAS), 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate (F-53B) and dodecafluoro-3H-4,8-dioxanonanoate (ADONA) in bottled drinking water, tea and juice samples was performed using LC coupled with tandem mass spectrometry (LC-MS/MS) and solid-phase extraction (SPE). In the electrospray negative ion mode, the limit of detection and limit of quantification (LOQ) values were 0.1 to 0.8 ng/mL and 0.2 to 1.6 ng/mL, respectively. The calibration curves were linear from LOQ to 50 ng/mL (r2 > 0.999). The SPE procedure (Presep PFC-II) was utilized for sample preparation and recovery rates for three standards (35, 70 and 140 ng/L) were 80.4–118.8% with relative standard deviation (RSD) ≤ 0.6%. Using the developed method, various samples (n = 54) from Japanese markets were investigated for PFAS and F-53B contamination, and values below the LOQ were observed. It is concluded that for monitoring products in the Japanese market, our method represents a significant improvement over complex techniques for the quantification of PFAS and related compounds from various foods.

著者

Hiroshi Shima

出版者

北九州市

雑誌

Bulletin of the Kitakyushu Museum of Natural History

巻号頁・発行日

no.6, 1987-03-20

著者

キクチ カツヒロ ウエダ ヒロシ タニグチ タカシ サトウ ノボル Katsuhiro KIKUCHI Hiroshi UYEDA Takashi TANIGUCHI Noboru SATO

雑誌

Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology

巻号頁・発行日

vol.1, 1987-09

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The typical shapes of snow crystals of low temperature types that are known at present are "Gohei twins", "Sea gull", "Spearhead" and so on. Although they were named by one of the authors (K. K.) tentatively, these names appear to be accepted by scientists in the fields of cloud physics, crystal growth and so on. On the other hand, their formation mechanisms except for the gohei twin crystals have not been clarified. In this paper, the correlation between the gohei twin, sea gull, and spearhead type crystals has been considered based on a number of microphotographs taken by a polarizing microscope during the observation period from December 25,1985 to January 23,1986 at Inuvik (68°22′N, 133°42′W), N. W. T., Arctic Canada. As a result, although we have pointed out that the gohei twin type crystals are two kinds that have tip angles of 56 and 78°, they have another difference besides the difference of their tip angles. Namely, the gohei twin crystals having the tip angle of 56° have a certain kind of finlike appendages along the crystalline boundary of two extended prism planes of the crystals. On the other hand, other twin crystals that have the tip angle of 78° are devoid of finlike appendages along the crystalline boundary. The angles of 13 and 20° between two extended prism planes of the gohei twin crystals pointed out in our previous papers were clarified by the measurement of the tip angles of individual extended prism planes. Furthermore, it was noted that the gohei twin crystals that have the tip angle of 56° are similar to the spearhead type crystals, and the spearhead type crystals were one of the wings of the sea gull type crystals seen from a right angle. However, some parts of the formation mechanisms of snow crystals of low temperature types are obscure and it would be difficult to understand their exact correlation as of this report.