著者
山地 直樹 馬 建鋒
出版者
公益社団法人 日本農芸化学会
雑誌
化学と生物 (ISSN:0453073X)
巻号頁・発行日
vol.44, no.7, pp.453-458, 2006-07-01 (Released:2009-05-25)
参考文献数
20
被引用文献数
1
著者
橋元 良明
出版者
公益財団法人 パブリックヘルスリサーチセンター
雑誌
ストレス科学研究 (ISSN:13419986)
巻号頁・発行日
vol.33, pp.10-14, 2018 (Released:2019-02-23)
参考文献数
8
被引用文献数
1

In 2015 we carried out a questionnaire survey of Internet addiction. A total of 10,596 students took part from junior high school. Analysis of the results revealed that 5.7% of students are at high risk of Internet addiction. We also found that the risk is higher for girls, lower grades and those who use social networking services (7.1%). Also we found that tendency for addiction is strongly related with the use to escape from a depressed mood and stress. There are several types of Internet addiction. These include Internet game addiction, SNS addiction, content addiction, in which users spend long time in contact with content such as videos and gambling-type addiction, in which users become absorbed in Internet auctions and social games. It seems likely that the Japanese cultural climate which places a strong emphasis on conformity puts people at greater risk of SNS addiction than elsewhere. In our 2017 nation-wide survey 20.1% of teenagers are at high risk of Internet addiction. The time Japanese youth spend online is continuing to increase as a result of age lowering for smartphones use. We should develop objective method for detecting addiction.
著者
和田 英敏 瀬能 宏 星野 修
出版者
一般社団法人 日本魚類学会
雑誌
魚類学雑誌 (ISSN:00215090)
巻号頁・発行日
pp.21-030, (Released:2021-12-02)
参考文献数
40

During an ichthyofaunal survey of Sagami Bay (Japan) and surrounding waters, a single hawkfish specimen (55.7 mm standard length: SL) was collected from Izu-oshima Island, Izu Islands by handnet at a depth of 35 m on 7 December 2011. The specimen was subsequently identified as Cirrhitichthys guichenoti (Sauvage, 1880), having the following combination of characters: dorsal-fin rays X, 13; anal-fin rays III, 7; pectoral-fin rays 16, uppermost and lower six rays unbranched; lateral-line scales 52; horizontal scale rows between base of middle dorsal-fin spinous portion and lateral line 4; gill rakers 5 + 12; greatest body depth 31.1% of SL; snout length 35.6% of head length; enlarged canine teeth on front of upper jaw and central part of lower jaw; and lateral surface of body white with large brownish-red blotches when fresh. This species has been previously recorded from Indonesia, Mauritius, Réunion, Madagascar, Comoros and South Africa, the present specimen from Izu-oshima Island representing the first specimen-based record from the northern hemisphere and northernmost record for the species. Seventeen underwater observations (photographic and visual) from 8 November 2011 to 25 May 2021 of juvenile and adult (ca. 35–100 mm in total length) C. guichenoti, documented from Izu Peninsula, Izu-oshima Island, and Chichi-jima Islands, Ogasawara Islands, and encompassing both the coldest and hottest seasons, suggest that the population is established and reproducing in Japanese waters. The new standard Japanese name “Kiringombe” is proposed for the species, based on the present specimen.
著者
吉澤 剛
出版者
研究・イノベーション学会
雑誌
研究 技術 計画 (ISSN:09147020)
巻号頁・発行日
vol.33, no.1, pp.26-38, 2018-03-31 (Released:2019-08-30)
参考文献数
54

The post-truth society facilitates diminished scientific authority and superficial political belief. The flag of ‘science for policy' as an imaginary counterpart again falls under a mud wrestling between incumbent leaders. Going beyond conventional citizen science and public engagement, a prospective participatory approach is positive engagement in dark science. Dark science is reflective and reflexive scientific activity with a sense of anxiety, fear, sympathy or sadness against disruptive impacts as a corollary of scientific development, by reference to structural science-society issues and planetary boundaries in the Anthropocene. Flying away from human-centric interests and thoughts on the ground, it aims to understand, talk and collaborate each other with objects arousing a sense of weirdness or wonder. Positive engagement is to nudge the less-engaged to voluntarily and positively engage in science and its policy. Dark science and positive engagement is reciprocal to make sense of our life and the world to come.
著者
小川 幸司
出版者
公益財団法人 日本学術協力財団
雑誌
学術の動向 (ISSN:13423363)
巻号頁・発行日
vol.21, no.5, pp.5_32-5_36, 2016-05-01 (Released:2016-09-02)
参考文献数
4
著者
中谷内 一也 尾崎 拓 柴田 侑秀 横井 良典
出版者
公益社団法人 日本心理学会
雑誌
心理学研究 (ISSN:00215236)
巻号頁・発行日
pp.92.20314, (Released:2021-02-26)
参考文献数
33
被引用文献数
6

Hand washing is one of the most effective measures to reduce the risk of transmitting infectious diseases. However, motivation for regular hand washing during the infectious phase of the SARS-CoV-2 infection remains unclear. We examined four possible reasons for practicing regular hand washing ̶ two involved the perceived effectiveness of this practice in reducing the risk of infection, and the other two involved other motivations. The results of our nationwide survey revealed that people conformed to other peopleʼs practice of washing hands and felt relief from their anxiety when washing their hands. The perceived effectiveness of personal risk reduction, however, showed little effect on the behavior, while motivations such as conformity and relief from anxiety successfully explained a large proportion of hand-washing behavior. Our findings suggest that policymakers responsible for public health should consider social motivations when implementing public strategies to combat the COVID-19 pandemic.
著者
小椋 和子
出版者
日本LCA学会
雑誌
日本LCA学会誌 (ISSN:18802761)
巻号頁・発行日
vol.6, no.1, pp.20-25, 2010 (Released:2019-12-15)
参考文献数
7

Professor Hanya wrote in his sociogeochemistry the migration of human society from demanding production to an environment oriented society, because of construction for sustainable society. One of important subjects for building up the environment oriented society is a recycled use of unneeded goods, which expects an introduction of idea for Life Cycle Assessment. Recycling of plastic products is significant, because plastic waste remains un-decomposed for a long time on the Earth; however, volatile organic compounds are to be released from plastic waste on the process of its compression. These volatile organic compounds may be harmful and unhealthy for human life. In fact, so-called “Suginami disease” had occurred in the vicinity of a plastic compression plant. Volatile organic compounds released on the process of plastic compression there may have caused the “Suginami disease.” Although recycling of waste products is important to sustain the environment oriented society, it is unacceptable for recycling process to bring any harmful products. Some serious problems were discussed on the plastic waste recycling.
著者
盛山 芳恵 加藤 和江 村 徹 十字 猛夫
出版者
日本組織適合性学会
雑誌
日本組織適合性学会誌 (ISSN:21869995)
巻号頁・発行日
vol.12, no.3, pp.183-201, 2006 (Released:2017-03-30)
参考文献数
7
被引用文献数
10 11

日本骨髄バンク登録ドナー(以下ドナーとする)として登録された人々のHLA型から, HLA-A, -B, -DRの3座位のHLA抗原の遺伝子頻度およびHLA-A, -B, -DRの3座のHLA抗原のハプロタイプ頻度の算出を行い, さらにドナーが登録した骨髄データセンターの都道府県をそのドナーの出身地と仮定して, HLAハプロタイプの都道府県別頻度の計算を行った. ドナー全体のハプロタイプ頻度と韓国, 台湾, 中国, 中国東北部のハプロタイプ頻度との比較も行った. 11th International Histcompatibility Workshop(以下11th IHWとする)の日本のHLA遺伝子頻度結果は, 全検体数が少なかったために検出できなかった日本人には比較的稀であるとされてきたHLA型が, 今回のドナー全体での調査では, いくつか検出された. これは大きな集団を解析することによって初めて可能になった貴重なデータである. 都道府県別ハプロタイプ頻度を較べてみると, ハプロタイプの分布に多少の差異があることが示された. 東北アジアの近隣の国々(韓国, 台湾, 中国, 中国東北部)との比較では, 日本は韓国と多くのHLA抗原ハプロタイプを共有している事が示され, 人類学的に近い関係にあることが推測された.
著者
仲野 敦子 有本 友季子 星野 直 工藤 典代
出版者
日本小児耳鼻咽喉科学会
雑誌
小児耳鼻咽喉科 (ISSN:09195858)
巻号頁・発行日
vol.37, no.1, pp.40-44, 2016 (Released:2016-08-01)
参考文献数
12

2012年から2013年の風疹大流行により40例以上の先天性風疹症候群(CRS)の報告があった。我々は出生時には症状がなく先天性風疹感染症(CRI)の診断であったが,1 歳 6 カ月時に左右差のある難聴の診断となり CRS となった症例を経験した。母親は妊娠10週に風疹に罹患し,出生時には児の血清抗体価上昇もあり胎内風疹感染が確認されたが,合併症状はなく自動 ABR は両側パスであり CRI と診断された。風疹分離が陰性となった後の ABR 検査で右60 dBnHL,左無反応で難聴の診断となった。 2013–2014年の CRS 報告45例中 9 例はワクチン接種歴の母から出生しており,妊娠中の風疹罹患歴がなしあるいは不明であった症例は13例であった。このうち何症例で難聴を合併していたかは不明であるが,ワクチン接種歴があり不顕性感染であった母親からの CRS による難聴症例が発生した可能性もあると考えられた。
著者
土井 慎一 石原 正彦 江角 敏明 神谷 宏 山室 真澄
出版者
日本陸水学会
雑誌
陸水学雑誌 (ISSN:00215104)
巻号頁・発行日
vol.79, no.3, pp.179-183, 2018-09-25 (Released:2019-09-25)
参考文献数
8
被引用文献数
1

宍道湖ではネオニコチノイドの使用開始直後からオオユスリカの減少や動物プランクトンの減少,エビ類漁獲量の減少が生じているが,宍道湖でのネオニコチノイド濃度の報告はこれまでになかった為,予備的に分析を行った。斐伊川の影響を受ける地点ではネオニコチノイドが検出されなかったが,水田排水を宍道湖に流す排水機場に近い地点でネオニコチノイドが検出された。その濃度は動物に慢性毒性を与える影響より小さかった。しかしながら水田排水が集積する排水機場で田植え期に近い6月の方が7月より高い濃度が見られたことから,田植え直後など大量に殺虫剤を使用する時期には濃度が高くなる可能性があると考えられた。
著者
松本 剛 木村 政昭 仲村 明子 青木 美澄
出版者
Tokyo Geographical Society
雑誌
地学雑誌 (ISSN:0022135X)
巻号頁・発行日
vol.105, no.3, pp.286-296, 1996-06-25 (Released:2009-11-12)
参考文献数
27
被引用文献数
6 11

Precise topographic features at the two major structural boundaries in the Ryukyu Arc, Tokara Gap and Kerama Gap, revealed that there exists a ridge feature of the Ryukyu Arc as a saddle topography. The feature supports the idea recently proposed that a landbridge connecting the Chinese continent, Ryukyu Islands and Japanese Islands, is thought to have been subsided since Late Pleistocene. The saddle is offset by large-scale left-lateral normal faults both of which are related to the opening of the Okinawa Trough. These topographic features and geological structure together with the gravity anomaly and regional tectonics in the Ryukyu area suggest that a north-south tensional stress regime, due to the rolling buck of the Philippine Sea Plate at the Ryukyu Trench, has dominated in this region since last 20, 000 years.
著者
Toichiro Asada
出版者
The Keynes Society Japan
雑誌
The Review of Keynesian Studies (ISSN:24356581)
巻号頁・発行日
vol.2, pp.148-174, 2020 (Released:2021-04-24)
参考文献数
26

In this paper, we analyze the macroeconomic effects of the coordinated fiscal and monetary stabilization policy in the manner of MMT by using a dynamic Keynesian model that has been developed by ourselves and others. The MMT (Modern Monetary Theory or Modern Money Theory), which was proposed by L. R. Wray, W. Mitchell, M. Watts and others, has the following remarkable characteristics. (1) The role of the central bank is completely passive in the financing of government expenditure, which is actively determined by the government. (2) The amount of government debt is not subject to the constraint of fiscal policy, its only constraint being the rate of inflation. In this paper, we construct a mathematical model that incorporates these characteristics and study the dynamic stability/instability of the coordinated fiscal and monetary stabilization policy.
著者
地主 あい 日塔 啓太 大瀧 夏海 富塚 万璃 相馬 正之
出版者
公益社団法人 日本理学療法士協会宮城県理学療法士会
雑誌
理学療法の歩み (ISSN:09172688)
巻号頁・発行日
vol.28, no.1, pp.30-35, 2017 (Released:2017-04-11)
参考文献数
17

本研究では,効果的な足趾把持力トレーニングを検証するために,静的ストレッチの介入が足趾把持力に及ぼす影響について検討した。対象は若年健常者40名とし,1週間に4回の頻度で3週間,静的ストレッチを実施するストレッチ群,筋力増強運動を実施するトレーニング群,双方を実施するストレッチ・トレーニング群,特別な介入をしないコントロール群に分類した。測定項目は,足趾把持力,足部柔軟性,足部アーチ高率とし,介入前後に2回計測した。分析の結果,足趾把持力はストレッチ群,トレーニング群,ストレッチ・トレーニング群において有意に向上した。これらのことから,静的ストレッチのみの介入によって足趾把持力は,増強できることが示された。これらの知見から足趾把持力への静的ストレッチの介入は,足趾把持力トレーニングとして有効であることが示唆された。
著者
Kiwamu NISHIDA
出版者
The Japan Academy
雑誌
Proceedings of the Japan Academy, Series B (ISSN:03862208)
巻号頁・発行日
vol.93, no.7, pp.423-448, 2017-08-02 (Released:2017-08-02)
参考文献数
183
被引用文献数
63

The ambient seismic wave field, also known as ambient noise, is excited by oceanic gravity waves primarily. This can be categorized as seismic hum (1–20 mHz), primary microseisms (0.02–0.1 Hz), and secondary microseisms (0.1–1 Hz). Below 20 mHz, pressure fluctuations of ocean infragravity waves reach the abyssal floor. Topographic coupling between seismic waves and ocean infragravity waves at the abyssal floor can explain the observed shear traction sources. Below 5 mHz, atmospheric disturbances may also contribute to this excitation. Excitation of primary microseisms can be attributed to topographic coupling between ocean swell and seismic waves on subtle undulation of continental shelves. Excitation of secondary microseisms can be attributed to non-linear forcing by standing ocean swell at the sea surface in both pelagic and coastal regions. Recent developments in source location based on body-wave microseisms enable us to estimate forcing quantitatively. For a comprehensive understanding, we must consider the solid Earth, the ocean, and the atmosphere as a coupled system.
著者
稲男 洋一 佐伯 尚哉 杉崎 俊夫 清水 雅司 因幡 和晃 岸本 喜久雄
出版者
一般社団法人 日本接着学会
雑誌
日本接着学会誌 (ISSN:09164812)
巻号頁・発行日
vol.48, no.9, pp.308-313, 2012-09-01 (Released:2014-06-30)
参考文献数
33
被引用文献数
2

粘着剤を2種の剥離フィルムで挟まれた構造の基材レス粘着シートは,耐溶剤性,耐熱性に劣るフィルムに,粘着剤のみがシート化され貼り合わせることが出来るため,テレビや携帯電話に代表されるディスプしイを製造する際の偏光板等とガラスを積層するために使用されている。粘着剤と剥離剤を剥離する剥離力は,粘着剤種により変動するため,弾性率を変化させた粘着剤を用いた基材レス粘着シートにおいて,剥離角度や剥離速度の条件を変動させ剥離力を測定した。その結果より,粘着剤と剥離剤の界面の剥離エネルギを解析した。また,剥離角度を変更した条件で剥離先端部の可視化を光学顕微鏡で行うことで,剥離時の粘着剤の変形を観察した。これらの結果を併せることで,粘着剤の弾性率の違いによる剥離のメカニズムを予測した。
著者
久木元 真吾
出版者
社会学研究会
雑誌
ソシオロジ (ISSN:05841380)
巻号頁・発行日
vol.48, no.2, pp.73-89,154, 2003-10-31 (Released:2016-05-25)
参考文献数
29
被引用文献数
1

This paper aims to analyze the narratives of so-called "freeters" and their unintended consequences. Freeters are young people who work on a part-time basis without securing a permanent job. They are currently the focus of much discussion in Japan and their way of life is often associated with laziness, irresponsibility, and daydreaming. To avoid ascribing the entire problem to freeters' nature, I point out the significance of a social discourse that leads them to their unique lifestyle. Freeters often emphasize that they are doing (or trying to find) what they really want to do. Their choice of work is based on their belief that having an enjoyable job will prevent them from quitting. They evaluate freeters who have or are trying to find their dream job as "good" and freeters who do not have such a motivation as "bad." It is, however, ironic that their obsession with "what I want to do" makes it more difficult for them to achieve their goals.This unintended consequence is a result of three factors. The more they are fascinated with the idea of "what I want to do," the more it becomes difficult a) for them to identify what their goals really are, b) for them to change their lifestyle, and c) for others to suggest different ways of life.The narratives of freeters, and especially their stress on "what I want to do," imply that they have no other choice than to find it, facing the fact that the working conditions in Japanese society are severe and that there is little variety in the jobs that are available to them.