• Title/Summary/Keyword: statistical data analysis

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Relationship between body fat distribution and menstrual disorder in Obese Pre-menopausal Korean Women (한국 성인 비만여성의 체지방 분포와 월경 장애의 상관성 분석)

  • Choi, Ga-Ya;Song, Mi-Yeon;Shin, Hyun-Dai;Chung, Won-Suk
    • Journal of Korean Medicine for Obesity Research
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    • v.4 no.1
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    • pp.23-31
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    • 2004
  • Background: Obesity is associated with menstrual disorder. Especially, upper-body obesity affects on female reproductive function. Objectives: The goals were to investigate relation between fat distribution and menstrual disorder in obese pre-menopausal Korean females. The hypothesis were tested that there is a relation between upper body obesity and menstrual disorder. Design: A cross-sectional evaluation of 66 Females (baseline age $32.15{\pm}7,32)$ with body mass index $31.22{\pm}4.05\;kg/m^2$. Body composition was measured using bioimpedence analysis (BIA) and anthropometry was done by same observer. VAS and Multidimensional verval rating scale(MVRS) were checked for menstrual pain. Dual-Energy X-ray Absorptiometry (DXA) was measured for evaluating body fat distribution. Menstrual disorder and body fat distribution were compared using statistical methods. Results: TLFR and WH ratio was higher in menstrual cyclic disorder group than controls. There was negative relationship between VAS and TLFR. Conclusions: The data shows that disorder of menstrual cycle was associated with upper body obesity. WH ratio could be one of the factor of menstrual disorder. VAS was correlated with lower body obesity. Further studies for role of upper body fat distribution on female reproductive function and relationship between menstrual pain and fat distribution thought to be needed.

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Species characterization of animal by muscle composition analysis I. The contents of histidine dipeptides in muscle from various species (근육조성에 따른 축종특이성 구명 I. 축종별 근육중 Histidine dipeptides 함량)

  • Lee, Myoung-heon;Kim, Sang-keun;Jung, Gab-soo;Park, Jong-myoung
    • Korean Journal of Veterinary Research
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    • v.39 no.3
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    • pp.478-488
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    • 1999
  • The contents of histidine dipeptides, a metabolic products of muscle protein, were investigated to compare muscle composition among the 9 domestic animals including cattle. In major domestic animals, analyzed the effects of age, part and sex of the animals on their muscle composition. Large amounts of carnosine($68.63{\pm}17.41{\mu}mol/g$) were detected in cattle and it was higher than other animals. Whereas the content of anserine showed high level in order of turkey, chickens and duck. The ratio of carnosine and anserine(C/A ratio) was different depending on the animal species. Statistical data indicated that difference among species was significant(p < 0.05). The contents of histidine dipeptides in heated muscle by boiling for 40 minutes at $110^{\circ}C$ was similar to thoes of raw muscle. C/A ratio in heated muscle was not different from that of raw muscle, indicating that no change has been made after heating process. The contents of carnosine and anserine were different according to the parts of their muscle. Especially chuck of the mammalian showed extremely low level of histidine dipeptides compared with other parts, while C/A ratio maintained certain level regardless of age, part, sex. Therefore, based on the content of histidine dipeptides, could be found the difference of muscle composition among the species. Also C/A ratio of horse, pig, cattle, duck, sheep and turkey were characteristic respectively.

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Estimation of CO2 Emission from a Eutrophic Reservoir in Temperate Region (온대지역 부영양 저수지의 이산화탄소 배출량 산정)

  • Chung, Se-Woong;Yoo, Ji-Su;Park, Hyung-Seok;Schladow, S. Geoffrey
    • Journal of Korean Society on Water Environment
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    • v.32 no.5
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    • pp.433-441
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    • 2016
  • Many large dams have been constructed for water supply, irrigation, flood control and hydropower in Korea for the last century. Meanwhile, recent studies indicated that the artificial reservoirs impounded by these dams are major sources of carbon dioxide (CO2) to the atmosphere and relevant to global budget of green house gases. However, limited information is available on the seasonal variations of CO2 evasion from the reservoirs located in the temperate monsoon regions including Korea. The objectives of this study were to estimate daily Net Atmospheric Flux (NAF) of CO2 in Daecheong Reservoir located in Geum River basin of Korea, and analyze the influencing parameters that characterize the variation of NAF. Daily pH and alkalinity (Alk) data collected in wet year (2012) and dry year (2013) were used for estimating the NAFs in the reservoir. The dissolved inorganic carbon (DIC) was computed using the pH and Alk measurements supposing an equilibrium state among the carbonate species. The results showed seasonal variations of NAF; negative NAFs from May to October when the primary production of the reservoir increased with water temperature increase, while positive NAF for the rest of the period. Overall the reservoir acted as sources of CO2 to the atmosphere. The estimated NAFs were 2,590 and 771 mg CO2 m-2d-1 in 2012 and 2013, respectively, indicating that the NAFs vary a large extent for different hydrological years. Statistical analysis indicated that the NAFs are negatively correlated to pH, water temperature, and Chl-a concentration of the reservoir.

A Study on the Participants Motives and Recognition, Effectiveness of the Cooking Skill Competition (요리직종의 기능경기대회 참가동기와 인식도 및 효과성에 관한 연구)

  • Min Kye-Hong
    • Korean journal of food and cookery science
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    • v.21 no.3 s.87
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    • pp.371-379
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    • 2005
  • This article studied the motivational factor of participation skill competition and their effectiveness. This study was restricted to cooks within those who had participated in a cooking contest to allow measurement of participation and satisfaction. This thesis investigated 116 cooks by questionnaires from April 6, 2005 to April 23, 2005, of which 106 responses were used for statistical processing to perform this study First, from the motive of participation, 13 variables were analyzed into 3 factors such as the factor of social recognition, the factor of speciality, and the factor of self-development and self-realization. The factor as a motive of participating in skill competition has a significant effect on effectiveness. A total of three factors were extracted from Recognition consisting of 10 variables. Each factor was labeled as awareness of the competition, revision of test questions, and selection of the judges of the competition. Second, three factors were derived from 12 variables in association with the effect of the contest, including factors of contribution to industry development, technical and technological effect, and psychological effect. In addition, it was revealed that the motive of participating in skill competition had an significant impact on recognition. Third, the results of regression analysis demonstrated that factors relating to recognition of skill competition and participation motives significantly influence on the effect of the contest. One limitation of this study is that the Population of the survey was limited to those who had Participated in the contest. Thus, the findings of this study may not be generalizable for other cases. It is clear that further research is needed to collect more in-dept data from other similar competitions in an effort to extend the application of the present results to other studies.

A Study on the comparison of BMI, Body-comparison, Body-satisfaction, and Behaviors of Appearance Managements according to the MBTI's Typology of Adolescents (청소년의 MBTI 성격유형에 따른 BMI, 신체비교, 신체만족, 외모관리행동의 비교연구)

  • Wee, Eun Hah
    • Korean Journal of Human Ecology
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    • v.24 no.5
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    • pp.663-676
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    • 2015
  • The purpose of this study was to examine whether any differences can be found in body comparison, body satisfaction, and appearance management behaviors according to the MBTI's typology among male and female adolescents in Gwangju and South Jeolla province, South Korea. It was conducted by a self-report survey of 534 male and female high school students in Gwangju and South Jeolla province. The collected survey data were analyzed by Means, Cronbach's ${\alpha}$, Factor analysis, and t-test using the SPSS/PC WIN 19.0 statistical program. The results were as follows: Introversion Type(I) teens tend to think a thinner body is closer to the ideal when compared to Extroversion type(E) students. They spend less time comparing their bodies with their peers. However, they usually have lower levels of body satisfaction and are more likely to be concerned about acne. Intuition Type(N) students tend to have a body figure that is a little plumper than Sensing Type(S) teens. They are inclined to try and lose weight and are concerned about acne. Sensing Type(S) students are more likely to compare their bodies with their peers than Intuition Type(N) teens. However, they are generally less satisfied with their bodies. Feeling Type(F) teens are more concerned with harmony and personal hygiene the Thinking Type(T) students. Judging Type (J) students generally want to be thinner than their current body type when compared with Perceiving Type(P) teens. When Judging Type(J) teens decide they need to be on a diet, they do their best to lose weight even if it means exercising and forgoing their favorite foods. These results indicate that it would be more effective to offer guidance to teens while taking into consideration their differences in terms of appearance management behaviors based on the MBTI Topology of Adolescents.

A Comparative Study of Job Importance, Performance Level, and Job Satisfaction of School and Office Foodservice Dietitians (학교급식소와 사업체급식소 영양사 직무의 중요도와 수행도 및 직무만족도 비교연구)

  • Kim, Ae-Jung;Yang, Hyang-Sook;Han, Myung-Ryun;Rho, Jeong-Ok
    • Korean Journal of Human Ecology
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    • v.20 no.4
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    • pp.871-884
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    • 2011
  • This study was conducted to analyze job importance, performance level, and job satisfaction of school and office foodservice dietitians. Self-administered questionnaires were collected from 181 dietitians in the Chungnam area. Statistical data analysis was completed using SPSS v. 14.0. School dietitians were 55% and office dietitians were 45%. Of both, age of 20s and 30s scored 85%; the age of 30s of schools dietians scored 70% while those in office dietians 20s scored 79%. More than 84% of school and office dietitians were university graduates. Total average of job importance of school dietitians was 4.24 and job performance was 3.97 while that of office dietitians was 4.15 and job performances was 3.69. A duty that had a big difference in job importance and performances as a dietitian was 'education of nutrition' (p<.001) and 'self-improvement' (p<.001). According to the meal service except, importance and performances of duties showed a significantly high level (p<.001) for office dietitians, but most measures of job importance and performances showed a high level at school. Therefore, in order to improve job performances and satisfaction for school dietitians, it is necessary to develop systematic and professional education programs for qualification improvement and to grow pride and improve treatment as a nutrition teacher through expansion of appointment. Meanwhile, for office dietitians, it is required to strengthen duty education of 'human resource management' and 'meal service management' through education and supplementary training in companies, on which personal characteristics are reflected.

Effects of the School Cultures on the School Members' Satisfaction (학교문화가 학교구성원의 학교만족도에 미치는 영향)

  • Park, Soo Jung;Lee, Jun Woo
    • The Journal of the Korea Contents Association
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    • v.13 no.7
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    • pp.452-462
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    • 2013
  • This study investigates the influence of school cultures, specifically culture of teachers' collaboration, principals' leadership, students' peer relation, on school satisfaction of school members such as students, parents, teachers, and principals. To achieve the goal, this study analyzed the data from the survey for the Seoul education longitudinal analysis during 2010 and 2011, and conducted the following statistical meth5ods: descriptive statistics, correlation, and multiple regression. There were significant effects of students' peer relations and culture of teachers' collaboration on students' and parents' school satisfaction. This study found two implications. Culture of teachers' collaboration is the common factor to effect students' parents', and teachers' school satisfaction. Overall, this study attempted to review school satisfaction and school culture at the same time from students', parents', teachers', and principals' perspectives, even though previous literature on school satisfaction has generally focused on each groups' perspective separately.

Study on the Factors Working Environment and Health Effects of Contingent Workers Youth (비정규직 청년의 근무환경과 건강영향의 요인에 관한 연구)

  • Choi, Kilyong;Kim, Hohyun
    • The Journal of the Korea Contents Association
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    • v.16 no.12
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    • pp.170-180
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    • 2016
  • Objectives: While the proportion of the non-regular workers youth increases in labor market, the differential conditions of temporary employee are increased. Methods: Research objects were 4,322 youth (from 15 to 29) among members of workers who responded to 2014 PSWCI panel report. Statistical analyses were performed using the SAS version 9.4 (SAS Institute Inc., Cary, NC, USA). Data were analyzed using frequency test, t-test, ANOVA and multiple regression. Results: According to results of analysis, youth had differences in youth temporary workers, working conditions, classification of occupation, working period, and health conditions based on work-time conditions. Conclusions: Youth workers, policies on working hours will need to take steps toward reducing working hours and improve a health promoting hierarchy for work environment.

Prevention Meteorological Database Information for the Assessment of Natural Disaster (자연재해 평가를 위한 방재기상 DB 정보)

  • Park, Jong-Kil;Jung, Woo-Sik;Choi, Hyo-Jin
    • Journal of the Korean Society of Hazard Mitigation
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    • v.7 no.3
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    • pp.41-49
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    • 2007
  • In order to reduce the amount of damage from natural disasters and perform the natural disaster mitigation program, the prevention activities and forecasting based on meteorological parameters and disaster datas are required. In addition, it is necessary to process prevention meteorological information for prevention activities in advance. For this, we have analyzed four data, such as Statistical yearbook of calamities and Statistics Yearbook issued by the Ministry of Government Administration and Human affairs. And Annual Climatological Report issued by the Korea Meteorological Administration and Recently 10 years for natural disaster damage from the Central Disaster and Safety Countermeasures Headquarters. We analyzed the causes, elements, occurrence frequencies, and vulnerable areas of natural disaster, using the 4 disaster datas, but these datas was not consistent with their terminology and items. Through the analysis of a kind and damage of disaster, we have selected the disaster variables, such as causes and elements, the amount of damage, vulnerable areas of natural disaster, etc and made a database. This database will be used to assess the natural disasters and develop the risk model and natural disasters mitigation plan.

Validating the Entrepreneurial Intention Model on the University Students in Saudi Arabia

  • HODA, Najmul;AHMAD, Naim;AHMAD, Mobin;KINSARA, Abdullah;MUSHTAQ, Afnan T.;HAKEEM, Mohammad;AL-HAKAMI, Mwafaq
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.11
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    • pp.469-477
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    • 2020
  • The main objective of this paper is to examine the applicability of Linan and Chen's entrepreneurial intention model (EIM) in predicting the entrepreneurial intention. EIM is an adaptation of the Theory of Planned Behavior that focuses on entrepreneurial intention and hypothesizing slightly different patterns of relationship with regards to subjective norms. The model also includes human capital and demographic factors. Snowball sampling method was used to collect data using the entrepreneurial intention questionnaire (EIQ) through several social media platforms. The survey indicates that the overall entrepreneurial intention of Saudi students is high (mean = 5.41). Eight out of the seventeen hypothesized relationships were found to be significant. Among the demographic variables, gender-personal attitude was significant whereas self employment experience and years of business education were found to be significantly related with perceived behavioral control. The statistical analysis using partial least square structural equation modelling validated the model. All the three antecedents of entrepreneurial intention were significantly related with entrepreneurial intention. The results of this study will help policy makers to get deep understanding into the phenomenon of entrepreneurship among Saudi university students and thereby develop a conducive environment. This study also validates the entrepreneurial intention model in a different cultural context.