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Quality Characteristics of Steamed Bread with Repeated Fermentation Processes (스팀빵의 발효횟수에 따른 품질특성 변화)

  • Choi, Ki-Bo;Kim, Hyun-Sook;Kim, Seong-Oh;Ryu, Hong-Soo;Lyu, Eun-Soon
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.40 no.4
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    • pp.593-598
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    • 2011
  • This research was performed to determine the quality characteristics of steamed bread by the number of times through the fermentation process. The number of fermentations varied from 1 to 5 while the steamed bread was prepared by measuring the duration of fermentation, and samples were analyzed in terms of general ingredients, physical properties, in vitro starch hydrolysis, protein digestibility, and sensory characteristics. Five times of fermentation resulted in significantly higher water content (p<0.01), and single fermentation led to the highest protein content (p<0.01). Protein levels decreased as fermentation was repeated. Single fermentation gave the lowest specific bread volume (p<0.05) and it increased with the number of fermentation times. Physical properties also varied with the number of times of fermentation. With more fermentation, hardness, gumminess, and chewiness decreased (p<0.01), whereas resilience (p<0.01) and cohesiveness (p<0.05) increased. In vitro starch hydrolysis was higher with 5 times of fermentation than with single to 3 times of fermentation (p<0.05). Protein digestibility was also higher with 5 times of fermentation (p<0.05). In sensory evaluations, whiteness scores were higher with 4 to 5 times of fermentation (p<0.01) whereas scores for crumb uniformity were lower with 4 and 5 times of fermentation. Moistness (p<0.01), cohesiveness (p<0.01), and chewiness (p<0.05) showed their highest scores with 4 times of fermentation.

A Six-Year Study of Relationship between Academic Performance in Dental Hygiene School and Performance on the Korean Dental Hygiene Licensing Examination at Yonsei University (Y-대학교 치위생학과 졸업생의 학교 성적과 국가시험 성적의 상관성)

  • Mun, So-Jung;Noh, Hie-Jin;Jeon, Hyun-Sun;Heo, Ji-Eun;Chung, Won-Gyun
    • Journal of dental hygiene science
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    • v.14 no.3
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    • pp.332-341
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    • 2014
  • This study was aimed to define the predicting factor account for the Korean Dental Hygienist Licensing Examination (KDHLE) by analyzing the academic grade score and the KDHLE score. The subjects included 185 graduates (2007, 2009, 2011~2014 graduates). The ratio of successful applicants of the subjects was 99.2%. The academic grade scores were calculated to grade point average, the KDHLE was scoring marks out of 300 (200 of written examination score and 100 of performance evaluation score) for correlation and regression analysis. The graduation grades and comprehensive examination scores correlated significantly with the KDHLE written examination scores (correlation coefficient=0.612), and KDHLE total score (correlation coefficient=0.258). First~third grade score and comprehensive examination scores correlated significantly with KDHLE total scores (p<0.05). Especially, there are the highest correlated between second comprehensive examination scores and KDHLE total scores (correlation coefficient=0.455), the last score in time sequence is the important factors account for the KDHLE total score. But there is no correlation between academic grade score and KDHLE performance evaluation scores, therefore it is necessary to study for determine the reason. The results of multiple linear regression analysis, second grade score and the average score of comprehensive examination were the main predicting factors account for the KDHLE total score, the explanatory power was 31.6%. Our results show that KDHLE total and written examination scores are predicted by the academic grade score reliably, but not the KDHLE performance evaluation scores. Further studies are needed to determine relationship between dental hygiene education and KDHLE.

Comparison of Science Academic Passion Between Elementary General and Science-Gifted Students (초등 일반 학생과 과학영재 학생의 과학 학업적 열정 비교)

  • Kang, Hunsik
    • Journal of Korean Elementary Science Education
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    • v.40 no.4
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    • pp.421-432
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    • 2021
  • This study compared science academic passion between elementary general and science-gifted students. A science academic passion test was conducted for fifth-sixth graders at an elementary school, and two gifted science education institutes in Seoul, with 95 and 92 students selected for the test. The result analysis revealed that the science-gifted students' science intellectual passion was significantly higher than general students, regardless of grade and gender. Also, the scores of general students were high in the order of "harmonious passion," "importance," "like," "time/energy investment," and "obsessive passion." The differences in scores between all sub-domains were statistically substantial. Moreover, there were no considerable differences in scores of the science-gifted students among the "important," "like," and "harmonious passion." However, the scores in these three domains were higher than that of "time/energy investment" and "obsessive passion." In addition, the "time/energy investment" score was higher than that of "obsessive passion." The differences in science academic passion by grade and gender were not statistically significant regardless of whether or not a student was science gifted. These results suggest that science academic passion characterizes science-gifted students rather than personal characteristics such as grade or gender.

Factors Affecting the Self Esteem of a Convergence Dental Hygienist (치과위생사의 자아존중감에 융합적으로 영향을 미치는 요인)

  • Jang, Kyeung-Ae;Lee, Hee-Su
    • Journal of the Korea Convergence Society
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    • v.6 no.4
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    • pp.177-186
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    • 2015
  • The present study analyzes the main factor having an effect on the convergence dental hygienist's self-esteem through the survey to them. A self-leadership and professional self-conception show meaningful result with higher score in the group with higher self-respect than that of lower one(p<.001). Also the higher hygienist's self-esteem, the higher clinic practice ability(p<.01). There is negative correlation with self-esteem in emotional labor(p<.01) and exhaustion(p<.01). However, the positive correlations are presented in self-leadership(p<.01), professional self-conception(p<.01) and clinic practice ability(p<.01) with self-respect. The factors influenced on self-esteem are clinic practice ability(p<.05) and exhaustion(p<.01). In results, the organized convergence program and education considering self-esteem in the hospital should be accomplished systemically to enhance the clinic practice ability of each hygienist.

Team Based Learning Experience and Effect on Study of Preliminary Learners on Medical Terminology (예비학습자의 간호영어 팀 기반 학습방법의 학습경험과 효과에 관한 연구)

  • You, Soo-Ok
    • The Journal of the Korea Contents Association
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    • v.17 no.7
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    • pp.101-112
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    • 2017
  • The purpose of this study is to find out what kind of experience and effect the learner - centered team - based learning (tbl)method has on pre - nursing learner's nursing English course. Participants were 12 preliminary nursing learner, it was analyzed through learning result recording, study observation, learning satisfaction, learner's report, peer evaluation. And described the meaning of the learning experience, individual and team scores were analyzed using frequency analysis, paired-t test. The results showed that the score of each team was higher than the score of individual in both. The tbl experience has been a form of intimacy with colleagues, a motivation for learning, self-study, easy to learn the medical terminology felt through repeated learning, to improve their score by having them secondary group test and they remembered it as a pleasant learning time.

Korea-U.S. Cross-National Comparison Study on Mathematics College Entrance Exams : the 7~th Pilot Test and the S.A.T. (한미 대학 입학 시험(수학)의 비교 연구 : 7차 실험 평가와 S.A.T.를 중심으로)

  • Kwon Oh Nam
    • The Mathematical Education
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    • v.32 no.3
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    • pp.244-255
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    • 1993
  • 본 연구를 수행하게된 동기는 1994년부터 미국에서 S.A.T.를 개정하고, 한국에서는 대학 수학 능력 시험 제도라는 새로운 제도가 도입되는 것에 있다. 대학 학업 적성 평가 제도로서 미국의 S.A.T. 제도에 대한 유효성이 많은 학자들에 의해서 연구되고 있다. 대학 수학 능력 시험과 S.A.T.는 각각 한국과 미국의 대학에서 학업 적성을 측정한다는 면에서 그 목적이 같다. 한국의 대학 수학 능력 시험의 유효성을 연구하기에는 아직 실시되지 않았으므로 너무 이르다고 본다. 대학 수학 능력 시험 제도 확립이 실험 평가에 근거하기 때문에 대학 수학 능력 시험 실험 평가와 S.A.T.를 비교 연구하는 것은 의미가 있다고 본다. 따라서 본 논문에서는 한국의 대학 수학 능력 시험 실험 평가(수리)와 미국의 S.AT.(수학)와의 상관 관계를 연구한다. 본 연구의 조사 대상으로 선발된 집단으로서 광주시의 3개교 6학급의 고등학교 3학년 283명이 참가하였다. 본 논문에서 다음과 같은 문제가 연구되었다. 1. 7차 실험 평가(수리)와 S.A.T.(수학)의 평균 점수에 대한 남녀 차이의 통계학적 유의성 (statistical significance). 2. 7차 실험 평가(수리)와 S.A.T.(수학)의 평균 점수에 대한 자연계 인문계 차이의 통계학적 유의성 (statistical significance). 3. 한국의 대학 수학 능력 시험 실험 평가(수리)와 미국의 S.A.T.(수학)의 상관 관계.

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Quality characteristics of blended tea with added pan-firing Rhus verniciflua seeds and changes in its antioxidant activity during storage (볶은 옻씨를 첨가한 차 음료의 품질특성 및 저장 중 산화방지 활성의 변화량 측정)

  • Jin, Hee-Yeon;Moon, Hye-Jung;Kim, Su-Hwan;Lee, Sang-Cheon;Huh, Chang-Ki
    • Korean Journal of Food Science and Technology
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    • v.49 no.3
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    • pp.318-323
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    • 2017
  • While manufacturing blended tea, the temperature for pan-firing Rhus verniciflua seed (RVS) is important. The pan-firing duration was fixed to 15 minutes according to a sensory test. We then prepared four types of blended teas with varied ratios of RVS; all the four types showed similar pH, $^{\circ}Bx$, and hunter's color values with no significant difference. According to the sensory test, A-type tea blended with RVS was the most preferred. The antioxidant activity of A-type blended tea was evaluated during storage. The changes in the total polyphenol, total flavonoid, and antioxidant activity by DPPH and ABTS assays were monitored during storage at 4, 25, and $40^{\circ}C$ for 28 days. After 28 days of storage, values for total polyphenol content, total flavonoid content, and antioxidant activity were similar to the initial values. Moreover, microbial growth was not observed during that period.

Quality Characteristics and Food and Nutrition Specialists′ Opinion on Jujube Teas (대추차의 품질특성 및 식품영양전공자들의 견해)

  • 서지현;오상희;김미리
    • Korean journal of food and cookery science
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    • v.18 no.6
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    • pp.670-676
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    • 2002
  • Four different brands of commercial and a home-made jujube tea were analyzed for physicochemical properties (sugar content, acidity, color, viscosity, transparency, texture) and sensory characteristics by using 7-point scoring test from 18 experienced panel members. Also, the opinion of food and nutrition specialists on the commercial jujube teas were assessed using a questionnaire, which were hand-delivered to 530 subjects consisting of university students and faculties of Department of Food and Nutrition at 8 cities(Seoul, Incheon, Youngin. Taejon, Chungju, Taegu, Kwangiu, Pusan) in Korea and the complete data of 328 subjects were statistically analyzed using SPSS Program for Window. The questionnaire consisted of socio-demographics, frequency and occasion of purchasing, opinion of quality and improvement points, and sensory characteristics. Commercial jujube teas (3 different brand) were lower in sugar content, pH, transparency, color (Hunter L, a and b value), and viscosity than the home-made one, whereas only one brand was higher in viscosity and lower in transparency than home-made one. Also, overall preference for commercial jujube teas was significantly love. than that for home-made one (p<0.05). Especially, the scores of overall preference for 3 commercial jujube teas (2.1-3.3) were much lower than that of home-made one (6.1). Points to be improved for commercial jujube teas were indicated as the amount of jujube (30.0%), taste (23.8%), sweetness (22.0%), and flavor (14.4%) in order. Sensory attributes showing positive correlations with overall preference of jujube tea were the taste(0.566), amount of jujube(0.449), and flavor(0.335).

The Effect of DISC Behavioral Style on Nursing Student's Knowledge and Clinical Performance (간호대학생의 DISC 행동유형이 지식과 임상수행능력에 미치는 영향)

  • Kim, Hearan
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.19 no.11
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    • pp.60-67
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    • 2018
  • This study was conducted to investigate the effects of DISC behavioral style on the knowledge and clinical performance of nursing students. The subjects of the study were nursing students in the fourth grade of university and the data collection period was from March 2015 to December 2016. The collected data were analyzed using SPSS 24.0. DISC behavioral style analysis showed that 10.6% were dominant, 33.8% were influence, and 48.5% were steadiness and 7.1% were conscientiousness. Knowledge score in accordance with the measured points of DISC behavioral style did not show differences in the first, but did show differences in the second and third. Conversely, clinical performance score in accordance with the measurement points of DISC behavioral style showed differences in the first, second and third.Knowledge and clinical performance scores revealed significant differences in the interactions between the groups, between measurement points and between groups and measurement points. As a result, DISC behavioral style of nursing college students vary, with each having merits and demerits. Therefore, it is necessary to provide an opportunity to understand these points and to develop merits in order to improve the learning outcomes of the curriculum.

A Study on Depression and Cognitive Impairment in the Elderly Lived Small City (일부 중소도시지역 노인들의 우울 및 인지기능장애에 관한 연구)

  • Yi, Seung-Ju
    • Journal of Korean Physical Therapy Science
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    • v.1 no.2
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    • pp.275-287
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    • 1994
  • For the purpose of promotion mental health in the elderly lived small city, a personal interview was conducted for 150 elderlies aged 65 years or more in the Kyungpook Andong city between 29th of August and 9th of September, 1994. The major findings were as follows; 1. The variables related depression were chronic disease, level of physical ability, smoking habits(pack/day) and school education. 2. The variables related cognitive impairment were level of physical ability, age, sex and chronic disease. It was revealed by this study, the female elderlies who had beend not educated and had chronic disease were higher depression or cognitive impairment. so the prospective research with these variables is need.

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