• Title/Summary/Keyword: activity pattern

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Effects of Colchicine and EMS Dropping to Apical Meristem on Induced Mutation and Plant Protein Pattern in Wasabia japonica Matsum (Colchicine과 EMS 돌연변이 처리가 고추냉이 식물체의 단백질 Pattern에 미치는 영향)

  • Park, Kie-In;Eun, Jong-Seon;Choi, Sun-Yong;Kwon, Sung-Whan;Lee, Kang-Soo;So, Sang-Sup;Youn, Myung-Ja
    • Korean Journal of Medicinal Crop Science
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    • v.5 no.1
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    • pp.36-42
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    • 1997
  • This study was investigated on the effects of colchicine and EMS. induced mutation, plant on the germination and polypeptide pattern and peroxidase activity monitored by two dimensional gel analysis in Wasabia japonica Matsum (wasabi). Germination rate of Muju was higher than that of Ulrung-Do and optimum concentration for germination was appeared 100 ppm GA3 containing with 10 ppm BAP in these cultivars. Survived plants rate of Muju was higher than that of Ulrung-Do after colchicine and EMS treatment. Peroxidase activity and plant height were decreased by mutagen treatments, while incresed in root and stem thickness. The number of protein spots and pattern showed difference between Muju and Ulrung-Do . The plants treated mutagen increased polypeptide spots, especially EMS treatment showed more different polypeptide pattern compared to control.

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Navigator Lookout Activity Classification Using Wearable Accelerometers

  • Youn, Ik-Hyun;Youn, Jong-Hoon
    • Journal of information and communication convergence engineering
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    • v.15 no.3
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    • pp.182-186
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    • 2017
  • Maintaining a proper lookout activity routine is integral to preventing ship collision accidents caused by human errors. Various subjective measures such as interviewing, self-report diaries, and questionnaires have been widely used to monitor the lookout activity patterns of navigators. An objective measurement of a lookout activity pattern classification system is required to improve lookout performance evaluation in a real navigation setting. The purpose of this study was to develop an objective navigator lookout activity classification system using wearable accelerometers. In the training session, 90.4% accuracy was achieved in classifying five fundamental lookout activities. The developed model was then applied to predict real-lookout activity in the second session during an actual ship voyage. 86.9% agreement was attained between the directly observed activity and predicted activity. Based on these promising results, the proposed unobstructed wearable system is expected to objectively evaluate navigator lookout patterns to provide a better understanding of lookout performance.

Comparisons of Gait Pattern, Muscle Activity and Balance Index according to Obesity in Female College Student (여대생의 비만에 따른 보행패턴, 근활성도 및 균형지수의 비교)

  • Kim, Chan-Kyu;Lee, Byung-Hoon
    • The Journal of the Korea Contents Association
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    • v.15 no.6
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    • pp.259-266
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    • 2015
  • The purpose of this study in obesity gait and to present relevant evidence for the prevention of musculoskeletal disorders to serve as clinical data were performed. 40 female college student body healthy, normal-weight group(n=20) and obesity group(n=20) after classification the gait pattern(smartstep), the balance index (biodex balance SD), muscle activity (surface EMG) to measure quantitatively were compared. Obesity group compared to normal-weight group, the body weight due to pressure and overcoming the load, weight gain due to the unbalance in the body by increasing the ankle joint movement by walking activity of the muscles that act on the ankle movement increases the more you know could. Therefore, in order to prevent musculoskeletal disorders in obese not to and continued strengthening of the muscles and the gait training, balance training is needed.

Determining Osteogenic Differentiation Efficacy of Pluripotent Stem Cells by Telomerase Activity

  • Zhang, Siqi;Sun, Yuhua;Sui, Yi;Li, Yan;Luo, Zuyuan;Xu, Xiao;Zhou, Ping;Wei, Shicheng
    • Tissue Engineering and Regenerative Medicine
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    • v.15 no.6
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    • pp.751-760
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    • 2018
  • BACKGROUND: Bone tissue engineering based on pluripotent stem cells (PSCs) is a new approach to deal with bone defects. Protocols have been developed to generate osteoblasts from PSCs. However, the low efficiency of this process is still an important issue that needs to be resolved. Many studies have aimed to improve efficiency, but developing accurate methods to determine efficacy is also critical. Studies using pluripotency to estimate efficacy are rare. Telomerase is highly associated with pluripotency. METHODS: We have described a quantitative method to measure telomerase activity, telomeric repeat elongation assay based on quartz crystal microbalance (QCM). To investigate whether this method could be used to determine the efficiency of in vitro osteogenic differentiation based on pluripotency, we measured the pluripotency pattern of cultures through stemness gene expression, proliferation ability and telomerase activity, measured by QCM. RESULTS: We showed that the pluripotency pattern determined by QCM was similar to the patterns of proliferation ability and gene expression, which showed a slight upregulation at the late stages, within the context of the general downregulation tendency during differentiation. Additionally, a comprehensive gene expression pattern covering nearly every stage of differentiation was identified. CONCLUSION: Therefore, this assay may be powerful tools for determining the efficiency of differentiation systems based on pluripotency. In this study, we not only introduce a new method for determining efficiency based on pluripotency, but also provide more information about the characteristics of osteogenic differentiation which help facilitate future development of more efficient protocols.

Determination of Similar Exposure Groups Using Weekday Time Activity Patterns of Urban Populations (평일 시간활동패턴을 활용한 도시 인구의 유사노출집단 분류)

  • Hwang, Yunhyung;Lee, Kiyoung;Yoon, Chung-Sik;Yang, Wonho;Yu, Seungdo;Kim, Guenbae
    • Journal of Environmental Health Sciences
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    • v.42 no.6
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    • pp.353-364
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    • 2016
  • Objectives: Determining the time activity patterns of urban populations is critical when performing an exposure assessment. The purposes of this study were to classify urban populations in Korea by their time activity patterns and to identify factors that influence these patterns. Methods: The time activity patterns of 31,634 and 20,263 individuals were obtained from two national databases collected in 2004 and 2009, respectively. The two largest metropolitan cities in Korea, Seoul and Busan, were selected for this analysis. For each city, multivariate linear regressions were performed to determine factors affecting the time spent in a residence and in transit. We also used cluster analysis to classify each urban population by activity pattern. Results: Nine distinctive activity patterns were identified in the Seoul and Busan populations, respectively, and the resulting classified population groups had specific characteristics. The identified patterns were similar for Seoul and Busan. The most significant factors affecting time spent in a residence were employment status, age, marriage status, education, and gender. Gender, education, employment status, and monthly income were significant factors affecting time spent in transit. Conclusion: These results indicate that, in addition to region, exposure scientists in Korea should consider classifying populations based on age, gender, and occupation.

Changes in Level of Several Functional Components and ACE-Inhibitory Activity in Developing Soybean Seeds

  • Jun Woo-Jin;Lee Ji-Hyun;Shim Sang-In
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.51 no.4
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    • pp.329-333
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    • 2006
  • Soybean quality is determined based on protein content, lipid content and fatty acid composition, and several functional components including isoflavones, anthocyanins and functional activity. Because the level of each component changes during seed development, it is necessary to know the concentration of quality-related components in developing seeds. Little is known of the pattern of changes in quality-related components. Seeds from field-grown soybean was harvest from the $R_6$ stage to the $R_8$ stage in 2004. Seed characteristics and the level of nutritional components were examined. Seed moisture content was dropped rapidly after the $R_7$ stage in the tested varieties. Seed growth rate was the highest from the beginning of the $R_6$ stage to the mid-$R_6$ stage. Chlorophyll content was decreased rapidly in pods and seeds. However, seed growth period from the $R_6\;to\;R_8$ was 35 days. The crude protein content was. increased dramatically between 63 DAF and 70 DAF and then increased slightly. The pattern of isoflavone accumulation was nearly similar to that of seed weight increase. From the late $R_6$ stage to the $R_7$, the accumulation rate was higher as compared to other stages. The angiotensin inhibitory activity was increased according to seed development from 63 ($R_6$) to 84 DAF ($R_8$). The difference of inhibitory activity in heated soybean powder, however, was not great among stages. The inhibitory activity was affected by heating treatment. The most effective heating time was 10 min. Excessive heating longer than 30 min resulted in a lowered inhibitory activity of soybean on ACE.

Comparison of physical activity and dietary patterns according to the degree of obesity in Korean men and women Data from the Seventh Korea National Health and Nutrition Examination Survey VII-1(2016) - (한국 성인 남녀의 비만 정도에 따른 신체활동과 식이 형태 비교 - 국민건강영양조사 제7기 1차년도 자료를 바탕으로(2016년) -)

  • Bang, So-Youn;Hyeon, Sa-Saeng
    • Journal of Digital Contents Society
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    • v.19 no.8
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    • pp.1527-1534
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    • 2018
  • The purpose of this study was to examine the obesity, physical activities, and dietary pattern, and to compare the physical activities and dietary pattern according to the degree of obesity in Korea adults, with data from the 7th Korea National Health Nutrition Examination and Survey VII-1(2016). This study found that compared with the obesity rate of females at 26.3%, the rate of males was very high at 43.7%. In both males and females, the obesity rate increased in proportion to age. In physical activity, the amount of physical activities among females was higher in normal weight group than obese weight group. In dietary pattern, among males, dietary fiber intake was higher in obese weight group, and among females, intake rate of fat was low and intake rate of carbohydrate was high in obese weight group. Based on the results of this study, it is necessary to develop and provide an intervention program consisting of physical activity and dietary pattern considering the recently changed obesity characteristics for the management of obesity in Korean adults.

A study on stress factors in dental hygienists caused by students in clinical practice by pattern of hospital (병원형태별 치과위생사가 임상실습 과정 중 실습생으로부터 경험하게 되는 스트레스 요인에 관한 연구)

  • Jang, Sung-Yeon;Kwon, Soon-Bok;Yang, Seung-Kyeong
    • Journal of Korean society of Dental Hygiene
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    • v.13 no.2
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    • pp.181-191
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    • 2013
  • Objectives : The research was performed to be used as basic data for dental hygienists' job satisfaction during clinical practice, and planning and operating effective clinical practice by analyzing stress factors in dental hygienists and the extent of stress caused by students in clinical practice. Methods : The research was aimed at dental hygienists working at college dental hospitals, dental clinic of general hospitals, dental hospitals and dental clinics located in Seoul and Gyeonggi province where clinical practices were conducted for dental hygiene students. For analysis, collected data was analyzed by using SPSS 20.0. Results : Results derived from analysis on characteristic difference by pattern of hospital were observed that there was a significant difference in job satisfaction by pattern of hospital. Results from analysis on correlation among stress factors were observed that there was correlation between behavior and attitude, interpersonal relationships, role and activity, ideal and value, and treatment fields. Results derived from analysis on the effect of stress factors on the job satisfaction were observed that role and activity (p=.002<.01), ideal and value (p=.019<.05), and treatment fields (p=.032<.05) affected the job satisfaction, while behavior and attitude (p=.386>.05), and interpersonal relationships ((p=.421>.05) did not affect the job satisfaction. A stress factor, role and activity (${\beta}$=.350) affected the job satisfaction the most, followed by ideal and value (${\beta}$=.242), and treatment fields (${\beta}$=-.185). For the explanation ability, the stress factors accounted for 20.5% of the job satisfaction. Conclusions : In conclusion, most of the dental hygienists are satisfied with students' clinical practice by pattern of hospital. Positive correlation was shown between stress factors. Behavior and attitude and ideal and value are high in stress in college dental hospitals, role and activity and treatment fields are high in stress in dental hospital, and interpersonal relationships are high in stress in dental clinics.

Associations between dietary patterns and hypertension among Korean adults: the Korean National Health and Nutrition Examination Survey (2008-2010)

  • Shin, Ji-Ye;Kim, Ji-Myung;Kim, Yuri
    • Nutrition Research and Practice
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    • v.7 no.3
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    • pp.224-232
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    • 2013
  • The objective of this study is to identify the dietary patterns associated with the risk of hypertensions among Korean adults using data from the Korean National Health and Nutrition Examination Survey (KNHANES, 2008-2010). This study analyzes data from 11,883 subjects who participated in the health and nutrition survey, aging from 20 to 64 years. We performed factor analysis based on the weekly mean intake frequencies of 36 food groups to identify major dietary patterns. We identified three major dietary patterns in both sexes, namely "traditional", "western" and "dairy and carbohydrate" patterns. Participants in the highest quartile of western pattern scores had significantly higher blood pressure, serum total cholesterol, and triglyceride levels than those in the lowest quartile. Although not statistically significant, a trend (P for trend = 0.0732) toward a positive association between the western dietary pattern and hypertension risk was observed after adjustments for age, sex, education, income, body mass index (BMI), smoking, physical activity, and energy intake. The dairy and carbohydrate pattern was inversely related with BMI and blood pressures and positively associated with serum high-density lipoprotein (HDL)-cholesterol. After adjusting the age, sex, education, income, BMI, smoking, physical activity and energy intake, the dairy and carbohydrate pattern showed inverse associations with hypertension prevalence (OR = 0.64, 95% CI = 0.55-0.75; P for trend < 0.0001). Intakes of fiber, sodium, and antioxidant vitamins were significantly higher in the top quartile for the traditional pattern than in the lowest quartile for the traditional pattern (P for trend < 0.0001). Intakes of fiber (P for trend < 0.0001), calcium (P for trend < 0.0001), retinol (P for trend = 0.0164), vitamin $B_1$ (P for trend = 0.001), vitamin $B_2$ (P for trend < 0.0001), niacin (P for trend = 0.0025), and vitamin C (P for trend < 0.0001) were significantly increased across quartiles for the dairy and carbohydrate pattern whereas sodium (P for trend < 0.0001) intake was decreased for this pattern. In conclusion, the dairy and carbohydrate pattern may be associated with a reduced risk of hypertension whereas the western pattern may be associated with an increased risk of hypertension among Korean adults.