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Chung, Yong-Jai;Yoon, Youn-Sik
- The Korean Journal of Zoology
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- v.23 no.3
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- pp.125-136
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- 1980
The purpose of the present study is to investigate the electrophoretic patterns of ADH isozymes and activity at various developmental stages of Oregon-R and Kwangju strains of D. melanogaster. The ADH isozymes were seperated by agarose gel plate eletrophoresis and they were stained for ADH activity study. The optical density was measured by using densitometer and the total activity was determined by measuring the enzyme solution's absorbance of 340 nm by spectrophotometer. The results are as follows: 1. At egg stages of Oregon-R and Kwangju strains ADH 2, ADH 3, ADH 4 were observed in te zymograms, but all of ADH 1, ADH 2, ADH 3, ADH 4 and ADH 5 were detected in larval, pupal and imaginal stages. 2. The amount of ADH 1+ADH 2 (anion) was 20-40% and that of ADH 3+ADH 4+ADH 5 (cation) was 60-805. In the developmental stages other, than egg stages, ADH 3 of both strains showed the largest amount among all ADH isozymes, and especially ADH 4 of Kwangju strain showed less amount than that of Oregon-R strain. 3. The total activity of the ADH at the egg stage was found to be the lowest, at larval stage became to be higher and to be lower at pupal stage and then became to be the highest at the imaginal stage. It is noticeable that the activity of the ADH in Kwangju strain was higher than that in Oregon-R strain.
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Brad Wipfli;Sean P.M. Rice;Ryan Olson;Kasey Ha;Caitlyn Trullinger-Dwyer;Todd Bodner
- Safety and Health at Work
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- v.14 no.3
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- pp.340-346
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- 2023
Background: Truck driving is a highly sedentary occupation that places workers at risk for chronic health conditions, such as obesity and high blood pressure. The primary purpose of this study was to objectively describe truck drivers' typical physical activity (PA) patterns. Methods: We used ~7-10-day baseline PA actigraphy data samples from drivers in the Safety & Health Involvement For Truckers (SHIFT) study (n = 394). Driver PA patterns (e.g., average number of ≥10 minute Freedson bouts per week, time in bouts, and common days/times for PA) were summarized with descriptive analyses. We also compared objective accelerometer data to self-reports. Results: Drivers' weekly PA averaged 14.4 minutes (SD = 37.0), and most PA occurred between 5-6 pm on Tuesdays and Wednesdays. Drivers overestimated self-reported weekly exercise by over 60 min/week compared to accelerometer data. Conclusion: Our results suggest that objective PA assessment may be warranted over self-report when possible, and timing may be key in future PA intervention work with truck drivers.
https://doi.org/10.1016/j.shaw.2023.08.005 인용 PDF

문수재
- Journal of the Korean Home Economics Association
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- v.27 no.2
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- pp.187-195
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- 1989
본 원고는 한국의 가정학의 뿌리를 내리게 하는데 공헌이 지대한 미국의 Oregon 주립대학교 가정대학 이 가정대학 수립 100주년의 기념행사의 일환으로 "pioneers of the Futrue"라는 일련의 Symposium의 한 Program 중 "Pioneers in Asian Home Economics:" The Oregon State University Connection 이라는 주재하에 문수재 교수가 연사로서 초빙되어 발표한 내용이다. 이는 한국의 가정학의 역사적 발자취의 일면이기 때문에 한국의 여러 가정학자들에게 이러한 정보를 같이 나누고자 하는 의도에서 대한가정학회지에 게재하는 바이다.서 대한가정학회지에 게재하는 바이다.
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Humble, Travis S.;Cina, Jeffrey A.
- Bulletin of the Korean Chemical Society
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- v.24 no.8
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- pp.1111-1118
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- 2003
We present one-color nonlinear wavepacket interferometry (WPI) signal calculations for a system of two electronic levels and one vibrational degree of freedom. We consider two cases, a displaced harmonic oscillator system, which can be treated analytically, and a model photodissociative system, whose WPI signal must be calculated by numerical wavepacket propagation. We show how signals obtained with different combinations of intrapulse-pair phase shifts can be combined to isolate the complex-valued overlap between a given onepulse target wavepacket and a variable three-pulse reference wavepacket. We demonstrate that with a range of inter- and intrapulse-pair delays the complex overlaps and variable reference states can be used to reconstruct the target wavepacket. We compare our results with previous methods for vibronic state reconstruction based on linear WPI and discuss further generalizations of our method.
https://doi.org/10.5012/bkcs.2003.24.8.1111 인용 PDF KSCI