著者

Deborshi BHATTACHARJEE Alexander I. IVANNIKOV Kassym ZHUMADILOV Valeriy F. STEPANENKO Kenichi TANAKA Satoru ENDO Megu OHTAKI Shin TOYODA Joyeeta BHATTACHARYYA Masaharu HOSHI

出版者

Journal of Radiation Research 編集委員会

雑誌

Journal of Radiation Research (ISSN:04493060)

巻号頁・発行日

vol.50, no.6, pp.559-565, 2009 (Released:2009-12-04)

参考文献数

24

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Electron spin resonance (ESR) dosimetry of teeth is used extensively for dose estimation following exposure to radiation. The population inhabiting the northeast region of India is prone to different cancers of the head and neck, and their prevalence is several times the national average. The objective of this study was to determine the role of radiation in the causation of this high cancer incidence by performing ESR spectroscopic measurements of tooth samples collected from the general population living in and around the city of Silchar. Nineteen tooth samples were used, and the age of the patients was 13-60 years. The excess dose, determined by subtraction of the natural background dose from the dose absorbed by the enamel, was found to the extent of 123 ± 43 mGy. However, the individual excess dose was found to be higher in subjects who consumed lime (5/6) than in non-lime-consuming subjects (2/13). It is not entirely clear if radiation is the cause of this excess cancer in this region of India. Therefore there is a need for wider studies including consideration of tobacco consumption as well as a larger number of samples for tooth enamel dosimetry.

著者

Valtcho D. Zheljazkov Thomas Horgan Tess Astatkie Vicki Schlegel

出版者

公益社団法人 日本油化学会

雑誌

Journal of Oleo Science (ISSN:13458957)

巻号頁・発行日

vol.62, no.9, pp.665-672, 2013 (Released:2013-09-03)

参考文献数

26

被引用文献数

7 35

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Fennel (Foeniculum vulgare Mill) is an essential oil crop grown worldwide for production of essential oil, as medicinal or as culinary herb. The essential oil is extracted via steam distillation either from the whole aboveground biomass (herb) or from fennel fruits (seed). The hypothesis of this study was that distillation time (DT) can modify fennel oil yield, composition, and antioxidant capacity of the oil. Therefore, the objective of this study was to evaluate the effect of eight DT (1.25, 2.5, 5, 10, 20, 40, 80, and 160 min) on fennel herb essential oil. Fennel essential oil yield (content) reached a maximum of 0.68% at 160 min DT. The concentration of trans-anethole (32.6–59.4% range in the oil) was low at 1.25 min DT, and increased with an increase of the DT. Alpha-phelandrene (0.9-10.5% range) was the lowest at 1.25 min DT and higher at 10, 80, and 160 min DT. Alpha-pinene (7.1-12.4% range) and beta-pinene (0.95-1.64% range) were higher in the shortest DT and the lowest at 80 min DT. Myrcene (0.93-1.95% range), delta-3-carene (2.1-3.7% range), cis-ocimene (0-0.23% range), and gamma-terpinene (0.22-2.67% range) were the lowest at 1.25 min DT and the highest at 160 min DT. In contrast, the concentrations of paracymene (0.68-5.97% range), fenchone (9.8-22.7% range), camphor (0.21-0.51% range), and cis-anethole (0.14-4.66% range) were highest at shorter DT (1.25-5 min DT) and the lowest at the longer DT (80-160 min DT). Fennel oils from the 20 and 160 min DT had higher antioxidant capacity than the fennel oil obtained at 1.25 min DT. DT can be used to obtain fennel essential oil with differential composition. DT must be reported when reporting essential oil content and composition of fennel essential oil. The results from this study may be used to compare reports in which different DT to extract essential oil from fennel biomass were used.

著者

二科 妃里 杉山 紀幸 鈴木 昭人 成田 泰章 野崎 淳夫

出版者

一般社団法人 室内環境学会

雑誌

室内環境 (ISSN:18820395)

巻号頁・発行日

vol.15, no.1, pp.15-25, 2012 (Released:2012-06-01)

参考文献数

12

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近年,トイレ内臭気物質汚染の対策製品が数多く市販されているが,これらの製品性能を求めるにはトイレ内臭気物質汚染を再現する新たな技術が要求される。ヒトの屎尿排泄物は微小熱源でもあるため,屎尿排泄物から臭気物質は便器を経由して上昇拡散する。この場合,臀部や太ももの間から臭気物質は漏洩し,トイレ空間を汚染する。そのため,便器からの漏洩臭気物質による室内空気汚染を如何に再現するかが一つの課題であった。そこで,本研究では便器からの臭気物質発生法についての新たな提案と検証を行うものである。すなわち,1)排泄時の屎尿排泄物の臭気物質発生特性を有する「擬似汚物」の開発を行い,次に2)定常発生が行える「臭気ガス定常発生装置」を作製し,最後に3)非排泄時の臭気物質発生を再現する「臭気物質発生源シール」を作製した。実験的検証の結果,1)スポンジ,粘土素材によって作製した擬似汚物は,排泄時のアンモニア発生特性を再現できる。また,本擬似汚物と「臭気物質放散面積調整器」を便器に設置したところ,臭気物質汚染濃度は実際のトイレ汚染の傾向を示すものの,多少低めの値を示した。本手法は脱臭便座や消臭剤などの対策製品の性能試験に適応することできる。2)臭気ガス定常発生装置では,アンモニア濃度を長時間安定的に保持することができ,本手法は脱臭便座などの試験法に適している。3)非排泄時では便器付着物による汚染が問題となるが,「臭気物質発生源シール」でこの汚染が再現できる可能性がある。

著者

Yasushi Ito Susumu Mitsutani

出版者

一般社団法人 日本内科学会

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

vol.49, no.23, pp.2645-2646, 2010 (Released:2010-12-01)

参考文献数

1

著者

Fernando O. Costa Luís O. M. Cota Eugênio J. P. Lages Renata M. Cyrino Alcione M. S. D. Oliveira Peterson A. D. Oliveira José R. Cortelli

出版者

日本大学歯学部

雑誌

Journal of Oral Science (ISSN:13434934)

巻号頁・発行日

vol.55, no.3, pp.245-253, 2013 (Released:2013-09-13)

参考文献数

46

被引用文献数

4 16

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This cross-sectional study investigated associations of cumulative smoking exposure and duration of smoking cessation with periodontitis and evaluated the effects of biological, behavioral, and social risk variables on these associations. The sample comprised 705 adults of both sexes (age, 35-65 years) who underwent a full-mouth periodontal examination. Subjects were classified according to smoking status as nonsmokers, former smokers, and current smokers, and univariate and multivariate analysis was used to evaluate associations between periodontitis prevalence and potential risk variables. The rates of periodontitis among nonsmokers, former smokers, and current smokers were 25.6%, 29.3%, and 45.1% respectively. After adjusting for other periodontal risk variables the odds ratio (95% confidence interval) for periodontitis was 3.09 (1.98-4.92) for former smokers and 5.24 (2.61-8.97) for current smokers. A significant dose-response relationship between pack-years of smoking and periodontitis prevalence was observed, as was a significant decrease in the risk of periodontitis as years of smoking cessation increased. Cumulative smoking exposure and duration of smoking cessation were significantly associated with periodontitis. (J Oral Sci 55, 245-253, 2013)

著者

Shunsuke MURAI Tomohiko MATOBA Christopher T. NELSON Takuya KOMINE Koji FUJITA Xiaoqing PAN Katsuhisa TANAKA

出版者

公益社団法人 日本セラミックス協会

雑誌

Journal of the Ceramic Society of Japan (ISSN:18820743)

巻号頁・発行日

vol.121, no.1416, pp.710-713, 2013-08-01 (Released:2013-08-01)

参考文献数

21

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We have prepared composites with anisotropic microstructure consisting of silver nanoparticles and zinc oxide pillars using an oblique angle deposition technique, and examined the optical response originating from their anisotropic morphology. The sample was obtained in three steps. First, the assembly of silver nanoparticles was prepared on a silica glass substrate by electron-beam deposition of the silver thin film and subsequent heat treatment. Next, zinc oxide was obliquely grown by using a pulsed laser deposition. Finally the zinc oxide was crystallized by the post annealing to make an array of inclined pillars grown on the top of the silver nanoparticles. The structure and morphology of the composites were elucidated by a combination of X-ray diffraction analysis and transmission electron microscopy. Optical rotation spectroscopy clarifies that the composite shows optical birefringence due to its inclined pillar morphology. The optical rotation spectrum exhibits two peaks, one being associated to the localized surface plasmon resonance of the silver nanoparticles and the other the excitons in the zinc oxide pillars. The present fabrication method is simple and can be applied to obtain anisotropic composites with relatively large dimensions.

著者

吉武 睦海 土山 聡宏 高木 節雄

出版者

一般社団法人 日本鉄鋼協会

雑誌

鉄と鋼 (ISSN:00211575)

巻号頁・発行日

vol.98, no.6, pp.223-228, 2012 (Released:2012-05-31)

参考文献数

17

被引用文献数

3 22

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Stable austenitic stainless steels containing 0.1 % carbon and nitrogen (Fe-18%Cr-12%Ni-0.1%C and Fe-18%Cr-12%Ni-0.1%N alloys) were tensile-tested to clarify the difference between the effects of carbon and nitrogen on the work hardening behavior as well as the deformation microstructure development in austenite. The carbon-added steel exhibited a much larger work hardening rate than the nitrogen-added steel in the high strain region (true strain > 0.25) although the dislocation accumulation was more significant in the nitrogen-added steel. EBSD analysis revealed that deformation twins were more frequently formed in the carbon-added steel, which leads to the TWIP effect. The reason why the nitrogen-added steel showed the less twinning behavior seemed to be mainly related with the short range order (SRO) composed of Cr and N atoms.

著者

加藤 茂

出版者

公益社団法人 東京地学協会

雑誌

地学雑誌 (ISSN:0022135X)

巻号頁・発行日

vol.99, no.2, pp.Plate1-Plate3, 1990-04-25 (Released:2009-11-12)

著者

中江 啓晴 熊谷 由紀絵 小菅 孝明

出版者

一般社団法人 日本東洋医学会

雑誌

日本東洋医学雑誌 (ISSN:02874857)

巻号頁・発行日

vol.64, no.2, pp.104-107, 2013 (Released:2013-09-13)

参考文献数

12

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アルツハイマー型認知症は認知症の半数を占め,認知機能障害が徐々に進行する。半夏白朮天麻湯をアルツハイマー型認知症患者に投与し,その有効性を検討したので報告する。対象はアルツハイマー型認知症患者72例。初診時に全例に改訂長谷川式認知症スケール(HDS-R)を実施した。同日から半夏白朮天麻湯エキスの内服を開始し,4週間後にHDS-R で再評価を行なった。評価可能であった患者は72例中64例であった。64例の内訳は年齢79.9±6.0歳(63-89歳),性別は男性33例,女性31例であった。半夏白朮天麻湯エキス投与前のHDS-R は15.5±5.2点であり,投与4週間後のHDS-R は16.9±6.2点と有意に改善を認めた(p < 0.01)。家族の目から見て認知機能が改善したものは13例(20.3%)であった。半夏白朮天麻湯のアルツハイマー型認知症の認知機能障害に対する有効性が示唆された。

著者

Okchul Hwang Kyungjin Ha Seungjun Choi

出版者

理学療法科学学会

雑誌

Journal of Physical Therapy Science (ISSN:09155287)

巻号頁・発行日

vol.25, no.7, pp.839-841, 2013 (Released:2013-08-20)

参考文献数

13

被引用文献数

3 6

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[Purpose] The purpose of this study were to identify whether painless dynamic PNF techniques can reduce lymphedema, and to provide basic reference data for use in the treatment of lymphedema patients. [Subjects] This experiment was conducted from March 2012 to July 2012 at Busan University Hospital D. The subjects were upper extremity lymphedema patients who were receiving rehabilitation treatment. Those with dual lymphedema site pain or who did not want to participate in the experiment were excluded. [Methods] A total of 40 women participated in this study, and they received PNF techniques before the application of lymph compression bandages. Group 1 of 20 subjects were adminstered PNF techniques three times a week for 30 minutes each time. Group 2 of 20 subjects only edema reducing massage for 30 minutes. [Results] The interaction between treatment method and treatment time was significant, which indicates that the change in edema at different measurement times was different according to treatment methods. In this study, Group 1 had a steeper rate of decline in edema than Group 2. [Conclusion] In conclusion, both massage and PNF techniques helped to lower edema rates. Four weeks after the beginning of treatment, a larger degree of decline in edema was exhibited in the PNF group than in the massage group.

著者

Ichiro WAKABAYASHI Kunihiro SAKAMOTO Hidehisa MASUI Sachiko YOSHIMOTO Akihisa KANAMARU Eizo KAKISHITA Hiroshi HARA Masashi SHIMO-OKA Kiyoyasu NAGAI

出版者

一般社団法人 日本内科学会

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

vol.33, no.4, pp.198-203, 1994 (Released:2006-03-27)

参考文献数

22

被引用文献数

10 17

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A case control study was performed with 142 leukemia patients and 284 controls matched for age and sex. Occupation, birth order, past medical history, and drinking and smoking habits were compared in these two groups. Persons born first or fourth were found to have a higher incidence of leukemia. History of a fracture was one of the risk factors for acute leukemia, and a history of gastroduodenal ulcer was a risk factor for chronic leukemia. This may suggest that extensive exposure to X-rays in diagnosis and treatment is a risk factor for leukemia. There was a significant dose-response relationship between the amount of smoking and the incidence of acute nonlymphocytic leukemia, but not between the amount of alcohol consumption and the incidence of leukemia. Thus, smoking was one of the risk factors for acute leukemia.(Internal Medicine 33:198-203, 1994)

著者

宮岡 洋一

出版者

一般社団法人 日本数学会

雑誌

数学 (ISSN:0039470X)

巻号頁・発行日

vol.41, no.3, pp.193-207, 1989-08-01 (Released:2008-12-25)

参考文献数

77

著者

江藤 ひろみ 北野 直子 南 久則

出版者

日本食生活学会

雑誌

日本食生活学会誌 (ISSN:13469770)

巻号頁・発行日

vol.20, no.3, pp.195-202, 2009-12-30 (Released:2010-01-26)

参考文献数

21

被引用文献数

3 1

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Children's development is affected by food habits, which are influenced by guardians' dietary awareness. We conducted a nutritional survey using a questionnaire about school meal system and guardians' knowledge of children's food and health in 41 public and 115 private kindergartens in Kumamoto prefecture. We also surveyed lunch programs at 9 kindergartens.  There were 4 groups of lunch programs, as follows: (1) Taking one's own lunch box and drinking milk provided by kindergarten, (2) Providing lunch from public school lunch center, (3) Providing lunch prepared by kindergarten and (4) Providing lunch through a catering service. There was no nutritional management system in kindergarten, using (1), (3) or (4). We observe that there were significant differences in the contents of breakfast and snack among the 4 groups and that suppertime was also significantly different among the groups. Looking at the contents of breakfast, intake of sweet rolls was [significantly] high in (4). In (4), also, suppertime was significantly later than in the other three groups. These results indicated that the eating habits of children were influenced by the daily life patterns of their families.  Only the meal contents of group (2) were managed by a school dietician. Dietary awareness of the guardians of group (2) was relatively high, and it seemed that their meal contents were appropriate.

著者

Luiz Alfredo Braun Ferreira Lucas Cristiano Fath Santos Wagner Menna Pereira Hugo Pasini Neto Luanda André College Grecco Thaluanna Calil Lourenço Christovão Claudia Santos Oliveira

出版者

理学療法科学学会

雑誌

Journal of Physical Therapy Science (ISSN:09155287)

巻号頁・発行日

vol.25, no.3, pp.325-329, 2013-03-25 (Released:2013-05-10)

参考文献数

35

被引用文献数

5 5

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[Purpose] The cervical spine is a common site of pain, which may arise from different parts of the upper limbs or dysfunctions of the upper thoracic spine. The different sections of the spinal column are interlinked, and one region exerts an influence over another. Thus, a low range of motion (hypomobility) in the thoracic spine is an indicator of neck pain, and alterations in the cervical spine can occur due to dysfunctions of the thoracic region. The aim of the present study was to assess the efficacy of upper thoracic spine (T1–T4) thrust manipulation with regard to reduction of pain and disability in patients with neck pain. [Subjects and Methods] Twenty-five individuals with persistent neck pain upon movement participated in this study. The individuals were evaluated using the Neck Disability Index and a visual analog scale for pain. Each individual underwent five sessions of thoracic spine thrust manipulation. Data analysis involved the Student’s t-test. [Results] Significant improvements were found in neck pain and disability. [Conclusion] Based on the results of the present study, thoracic spine thrust manipulation proved effective in the treatment of individuals with neck pain, leading to a reduction in both pain and disability.

著者

Kang Sung Lee Eunhye Ko Sang-Yeol Lee

出版者

理学療法科学学会

雑誌

Journal of Physical Therapy Science (ISSN:09155287)

巻号頁・発行日

vol.25, no.3, pp.293-295, 2013-03-25 (Released:2013-05-10)

参考文献数

18

被引用文献数

5

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[Purpose] This study investigated how the toe spreader affects muscle activities during gait in order to enhance the clinical decision-making process regarding the different characteristics of toe spreader materials. [Subjects] Twenty healthy participants were recruited. [Methods] Repeated measures of tibialis anterior (TA) and peroneus longus (PL) EMG activities (%RVC) were evaluated with and without toe separators made of two different materials (i.e., soft and hard). [Results] Compared to walking without a toe spreader, TA activity was significantly increased by the soft toe spreader and was decreased by the hard one. PL activity was significantly decreased by the soft toe spreader. [Conclusion] The altered TA and PL activities observed in this study may be the result of the toe spreader providing medio-lateral foot support during walking.

著者

山田 一郎

出版者

公益社団法人 日本人間ドック学会

雑誌

健康医学 (ISSN:09140328)

巻号頁・発行日

vol.7, no.2, pp.7-14, 1993-02-20 (Released:2012-08-27)

著者

Tsuyoshi Yamaura Yoshiyuki Kajikawa Hirofumi Tomita Masaki Satoh

出版者

(公社)日本気象学会

雑誌

SOLA (ISSN:13496476)

巻号頁・発行日

vol.9, pp.89-93, 2013 (Released:2013-07-17)

参考文献数

21

被引用文献数

3 5

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The impact of a tropical cyclone on the northward migration of the Baiu frontal zone (BFZ) is investigated in the case of the tropical cyclone MAWAR (2012) using a global cloud-system resolving model, called NICAM. From 4 to 6 June in 2012, the BFZ rapidly shifts northward with MAWAR. A simulation with the initial data of 29 May reproduces the northward migration of the BFZ and the tropical cyclone. Strong southerlies on the eastern side of the tropical cyclone transport moist and high-temperature air into the BFZ. This horizontal advection affects the northward migration of the BFZ. In contrast, the BFZ stagnates to the south of Japan in another simulation with the initial data of 30 May because the tropical cyclone track is diverted eastward. Thus, realistic reproducibility of a tropical cyclone is needed for better simulations and prediction of the BFZ migration.

著者

Hajime Ohmura Atsushi Hiraga James H. Jones

出版者

一般社団法人日本体力医学会

雑誌

The Journal of Physical Fitness and Sports Medicine (ISSN:21868131)

巻号頁・発行日

vol.2, no.2, pp.163-168, 2013-05-25 (Released:2013-06-21)

参考文献数

48

被引用文献数

3

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Thoroughbred racehorses have been selectively bred for racing for centuries. The excellent exercise capacity of Thoroughbreds is thought to depend largely on their extraordinarily high cardiopulmonary function. Their high aerobic capacity (VO2max) might be amplified by the exercise-induced hypoxemia that they experience even during submaximal exercise. In humans and horses, accumulated O2 deficit (AOD) has been the primary approach used to assess net anaerobic capacity during exercise. The exercise-induced hypoxemia Thoroughbreds experience allows an alternative approach to measuring net anaerobic energy utilization using plasma lactate accumulation rate (PLAR). Horses increase their aerobic capacity when breathing hyperoxic gas that eliminates exercise-induced hypoxemia, and PLAR decreases stoichiometrically. Relating the decrease in PLAR to the increase in VO2max yields a quantitative index of how much net aerobic power a horse is utilizing. Comparison in horses of the net anaerobic power estimated by the two methods, AOD and PLAR, shows systematic bias and suggests PLAR may be more accurate.

著者

堀野 正也 渡辺 啓司 玉橋 邦裕

出版者

一般社団法人 溶接学会

雑誌

溶接学会論文集 (ISSN:02884771)

巻号頁・発行日

vol.15, no.1, pp.38-44, 1997-02-05 (Released:2009-12-10)

参考文献数

14

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Au-Sn solder has relatively high reliability because of the higher corrosion resistance and high temperature strength compared with Pb-Sn solder. It is, however, difficult to form Au-Sn alloy solder layer in the wet plating process on bonding surfaces. In this study, Au-Sn solder is provided as laminated Au-Sn-Au plating formed in a wet process on thin metal plates. Ni plating is formed prior to laminated Au-Sn-Au plating in order to improve wettability of the solder. Soldering process for thin metal plates without flux is investigated at the view point of soldering conditions and outgassing from the solder. Experimental result shows that Au plating contains larger amount of gas compared with Ni or Sn plating and the gas causes the solder layer to form voids. Forming many small holes around the specimen surface, amount of voids can be reduced. Peeling test shows that the peel strength of bonded specimen is influenced by the residual Ni thickness on the bonding interface rather than the bonding time or bonding pressure.

著者

野田 哲夫

出版者

国立研究開発法人 科学技術振興機構

雑誌

情報管理 (ISSN:00217298)

巻号頁・発行日

vol.56, no.6, pp.355-362, 2013-09-01 (Released:2013-09-01)

参考文献数

14

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IT産業において日本発のオープンソースプログラミング言語Rubyの活用が注目されている。2012年4月にはRubyはその言語仕様が国際規格ISO/IEC 30170として承認された。これによってRubyの安定性や信頼性が増すと同時に,Rubyを活用した市場がさらに拡大することが期待される。本稿では,オープンソースがビジネスにつながることを根拠として,RubyおよびRuby on Railsの特徴とこれが注目される背景,そして島根県松江市で始まったオープンソースRubyを活用した地域産業振興の成果と課題について概説する。