http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Taro Matsumoto (검색결과 2 건)
- 무료
- 기관 내 무료
- 유료
-
Yasutsugu Yukawa,Taro Matsumoto,Heiko Kollor,Akihito Minamide,Hiroshi Hashizume,Hiroshi Yamada,Fumihiko Kato 대한척추외과학회 2019 Asian Spine Journal Vol.13 No.4
Study Design: Prospective cohort imaging study. Purpose: This study aimed to evaluate lumbar sagittal alignment and range of motion (ROM) using radiographs in a large asymptomatic cohort and identify sex-based differences and age-related changes in the subjects. Overview of Literature: Several researchers have tried to establish normal alignment and kinematic behavior of the lumbar spine, using plain radiographs. Few studies have employed a large and sex-and age-balanced cohort. Methods: Total 627 healthy volunteers (at least 50 males and 50 females in each age decade, from the 3rd to the 8th decade) underwent whole spine radiography in the standing position; lumbar spine radiography was performed for all subjects in the recumbent position. Lumbar lordosis (LL, T12–S1) and ROM during flexion and extension were measured using a computer digitizer. Results: The mean LL was 36.8°±13.2° in the recumbent position and 49.8°±11.2° in the standing position. The LL was greater in the standing position than in the recumbent position; further, LL was higher in females as compared to that in males. Local lordosis at each disk level increased incrementally with distal progression through the lumbar spine in both the positions. Local lordosis at L4–S1 was 29.8°±8.0° in the recumbent position and 34.2°±8.3° in the standing position and occupied 85.1% and 70.8% of the total LL, respectively. However, local lordosis in the standing position decreased with age at L2–3, L3–4, and L4–5 levels. Total lumbar ROM (T12–S1) decreased with age. The ROM in females was higher than that in males. Conclusions: We established the standard value and age-related changes in the lumbar alignment and ROM in each age decade in asymptomatic subjects. These data will be useful and provide the normal values for comparison in clinical practice to identify sex-based differences and age-related changes.
-
Sterol Compositions in Some Cucurbitaceae Vegetable Oils
정태명,양민석,Tae Myoung Jeong,Min Suk Yang,Taro Matsumoto Korean Chemical Society 1977 대한화학회지 Vol.21 No.3
오이, 수박, 수세미, 박, 하늘수박의 다섯가지 박과식물 종자유에서 세가지 스테롤 플랙숀을 박층 크로마토그래피로 나누고 각 플랙숀의 조성을 가스크로와 가스크로에 연결된 질량분석법으로 밝혔다. 이중 4-데스메틸스테롤 플랙숀에서 ${\alpha}$-Spinasterol, ${\Delta}^{7,22,25}$-stigmastatrienol 및 ${\Delta}^{7,25}$-stigmastadienol를 단리(單離)하여 IR, NMR 및 질량분석법으로 동정(同定)하였다. Three sterol fractions; 4-desmethyl-, 4-monomethyl-, and 4,4-dimethylsterol, separated by thin layer chromatography from the unsaponifiables of five Cucurbitaceae (cucumber, watermelon, sponge cucumber, gourd and snake gourd) seed oils were analyzed by gas liquid chromatography and combined gas liquid chromatography-mass spectrometry. ${\alpha}$-Spinasterol, ${\Delta}^{7,22,25}$-stigmastatrienol and ${\Delta}^{7,25}$-stigmastadienol isolated from the 4-desmethylsterol fraction were identified by IR, NMR and mass spectrometry.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
