• Title/Summary/Keyword: science and arts

Search Result 3,093, Processing Time 0.034 seconds

Both endurance- and resistance-type exercise prevents neurodegeneration and cognitive decline in mice with impaired glucose tolerance

  • Woo, Jinhee;Shin, Ki-Ok;Park, Chan-Ho;Yoon, Byung-Kon;Kim, Do-Yeon;Bae, Ju-Yong;Lee, Yul-Hyo;Ko, Kangeun;Roh, Hee-Tae
    • Journal of the Korean Applied Science and Technology
    • /
    • v.36 no.3
    • /
    • pp.804-812
    • /
    • 2019
  • The purpose of this study was to investigate the effects of different types of exercise training on neurodegeneration and cognitive function in mice with impaired glucose tolerance (IGT). Thirty-six male C57BL/6 mice were randomly assigned to the control (CO, n = 9) and impaired glucose tolerance (IGT, n = 27) groups. The IGT group consumed 45% high fat diet for 4 weeks and received 40 mg/kg of streptozotocin twice in the lower abdomen to induce IGT. After the IGT induction period, the IGT group was subdivided into IGT + sedentary (IGT, n = 9), IGT + endurance exercise (IGTE, n = 9), and IGT + resistance exercise (IGTR, n = 9). The IGTE and IGTR groups performed treadmill and ladder climbing exercises 5 times per week for 8 weeks, respectively. Fasting glucose and glycated hemoglobin (HbA1c) levels were significantly higher in IGT group than in CO, IGTE, and IGTR groups (p < 0.05). HOMA-IR was significantly higher in IGT group than CO group (p < 0.05). Hippocampal catalase (CAT) was significantly lower in IGT group than in CO group (p < 0.05), while beta-amyloid ($A{\beta}$) was significantly higher in IGT group than in CO group (p < 0.05). Hippocampal tau was significantly higher in IGT group than in CO, IGTE, and IGTR groups (p < 0.05). The Y-maze test performance for cognitive function was significantly lower in IGT group than in CO, IGTE, and IGTR groups (p <0.05). These results suggest that IGT induces neurodegeneration and negatively affects cognitive function, while regular exercise may be effective in alleviating neurodegeneration and cognitive decline regardless of exercise type.

Changes in the Quality of New Cultivar Dewdrop Pine Mushroom (Lentinula edodes GNA01) Depending on the Storage Temperature (신품종 이슬송이 버섯(Lentinula edodes GNA01)의 온도별 저장에 따른 품질 변화)

  • Choi, Duck-Joo;Lee, Yun-Jung;Choi, So-Rye;Youn, Aye-Ree
    • Korean journal of food and cookery science
    • /
    • v.32 no.5
    • /
    • pp.585-592
    • /
    • 2016
  • Purpose: The purpose of this study was to investigate the quality characteristics and antioxidant activity on consequent storage based on the temperature of new cultivar dew-drop pine mushroom (Lentinula edodes GNA01). Methods: Dewdrop Pine Mushroom were prepared under different storeage temperature (4, 10, $20^{\circ}C$). Results: Weight loss and hardness showed the least reduction rate when it was stored at $4^{\circ}C$ (p<0.05). The color value changed to dark brown at all storage temperatures during the storage period. When it was stored at $4^{\circ}C$, it maintained its initial color for a longer period than at different storage temperatures. With respect to the change in its viable cell count, the cells proliferated to less than 3.0 log CFU/g up to Ed: Please review the change. The earlier part was difficult to understand 2.83 log CFU/g until 15 days of storage at $4^{\circ}C$. On measuring the antioxidant activity of this mushroom, the polyphenol content was maintained without a large change until 9 days of storage at $4^{\circ}C$. The electron-donating action maintained high antioxidant activity, accounting for 81.99% until 12 days of storage from 83.08% during the initial storage at $4^{\circ}C$. When it was stored at $4^{\circ}C$, the sensory characteristics received the highest score among all items, such as appeaance, color, flavor and general preference, etc. Concolusion: In summary, new Cultivar Dewdrop Pine Mushroom (Lentinula edodes GNA01) can maintain its commercial value until the 12th day of $4^{\circ}C$ storage.

Quality Characteristics of Jeungpyun with Added Rosemary Powder (로즈마리를 첨가한 증편의 품질특성)

  • Kang Suk-Hyang;Lee Kwang-Suck;Yoon Hye-Hyun
    • Korean journal of food and cookery science
    • /
    • v.22 no.2 s.92
    • /
    • pp.158-163
    • /
    • 2006
  • This study developed rosemary Jeungpyun to increase the functional value and flavor of traditional Jeungpyun by adding rosemary Powder. Rosemary Jeungpyun containing 0%, 0.5%, 1%, 1.5% and 2% of rosemary powder was prepared and the moisture content, pH, color, texture and sensory properties of the samples were measured. With increasing rosemary powder content, the moisture content of rosemary Jeungpyun decreased, pH increased significantly, L-value decreased, and Hunter a and b-values significantly increased. Textural profile analysis showed that the hardness and brittleness were significantly increased but adhesiveness was decreased with increasing rosemary powder content. Sensory evaluation showing the highest value on air cell uniformity, flavor and overall acceptability of 0.5% rosemary Jeungpyun, which suggested the Possibility of rosemary Jeungpyun with improved sensory characteristics.

Artists or Educators? : A Phenomenological Study on the Collective Identity of Future Arts & Culture Education Instructors (ACEIs) (예술가인가 교육가인가?: 문화예술교육사 국가자격증 취득희망자의 정체성에 관한 현상학적 연구)

  • Kim, InSul;Park, ChilSoon;Cho, Hyojung
    • Review of Culture and Economy
    • /
    • v.17 no.2
    • /
    • pp.185-216
    • /
    • 2014
  • It has been two years since the national certificate of Arts & Culture Education Instructor(ACEI) was implemented the 2012 amendment to the Arts & Culture Education Act. Separate from the initial policy goals, students who attend the program to achieve ACEI certificate share various expectations, motivations and intents. The purpose of the research is to understand the collective identity of future ACEIs to evaluate the initial policy implementation during the period when the collective professional identity has not been fully formed yet. This research studies the data that were collected from 172 students who were attending one of the official ACEI institutes in Seoul area. As one of qualitative research methods, Questionnaire Method was employed to conduct this phenomenological study. James E Marcia's theory provides the theoretical framework for the data analysis of this study. The research results indicate that many students'identity status are between Identity Diffusion and Moratorium, which raises concerns for both arts and cultural fields as well as the policy success. Therefore, this research will relate these findings to the larger arts and culture infrastructure in order to better prepare them as arts and cultural professionals and also to stress the importance of the job market development and social environment that can accept them.

The Effect of Art Therapy for University Students' Self-development in the Liberal Arts Programs (미술치료 교양강좌가 대학생의 자기성장에 미치는 효과)

  • Hong, Eun-Joo;Moon, Hyun-Young
    • The Korean Journal of Community Living Science
    • /
    • v.21 no.3
    • /
    • pp.427-439
    • /
    • 2010
  • This study aimed to investigate the potential of Art Therapy to be part of Liberal Arts programs for university students. The study is based on the examination of the effect after the program. The program was combined with Art Therapy theory and with a practical part for students to have a psychological understanding of self development(ego-identity, self-esteem and interpersonal relationship). The subjects were 38 students who were registered in the Art Therapy course at N university. It was a two hour-course and was offered every week. The first 40 minutes of the class were used for explaining Art Therapy theory, and the last 80 minutes were given for practice. To analyze the effect of the program, the index of ego-identity, the index of self-esteem and the index of interpersonal relationship were used. Frequency, percentage and standard deviation were calculated with SPSS 12.0, and a paired t-test was followed. According to the results, this art therapy program has an effect on the subjectivity and future-confidence of students, which includes the sub-categories of self-identity. However, there was no effect found in the category of self-esteem. Comprehension, which is under the interpersonal relationships category, showed statistically meaningful differences after the program was done. Based on this study, it was revealed that Art Therapy as a part of the Liberal Arts programs, which incorporates a large number of students, can have a similar effect on people compared to the Group Art Therapy, which incorporates a relatively smaller number of people.

Nutritional Retention Factor of 1+ Quality Grade Hanwoo Beef Using Different Cooking Methods (1+등급 한우의 부위별 조리방법에 따른 영양소 잔존율)

  • Kim, Hong-Gyun;Lee, Kun-Jong;Kim, Sung-Min;Chung, Hea-Jung
    • Food Science of Animal Resources
    • /
    • v.30 no.6
    • /
    • pp.1024-1030
    • /
    • 2010
  • The focus of the study was to maximize the output data for Korean cuisine. This study evaluated the nutritional retention factor for different cuts of Korean beef (Hanwoo beef) subjected to various cooking methods. Five cuts (short rib, sirloin, chuck roll, tenderloin, and fore shank) of Korean Hanwoo beef were prepared and used in this experiment. Two different cooking methods (dry-heat cooking and moisture-heat cooking) were applied to each cut. The sodium contents of dry-heat cooked short rib (86.44), sirloin (76.81), tenderloin (86.65), and fore shank (85.89) decreased. Potassium contents of dryheat cooked sirloin (94.99), chuck roll (89.19), and fore shank (92.66) decreased. Calcium contents of dry-heat cooked sirloin (61.49), chuck roll (73.97), and fore shank (91.46) decreased. Iron contents of dry-heat cooked chuck roll (79.71), and tenderloin (90.79) decreased. Phosphorus contents of dry-heat cooked sirloin (87.87), and tenderloin (99.88) decreased. Mineral contents of all cuts cooked by moisture-heat decreased. Finally, the nutritional retention factor represents output data of each cooking method with yield % of each item.

Recognition of General arts classes based on movie - Focused on the movie "Untouchables: 1% friendship" (영화 기반 교양교과 수업 활동 탐색 - 영화 「언터처블: 1%의 우정」 중심으로)

  • Kim, Seong-Won;Youn, Jeong-Jin
    • Asia-pacific Journal of Multimedia Services Convergent with Art, Humanities, and Sociology
    • /
    • v.7 no.6
    • /
    • pp.63-72
    • /
    • 2017
  • This study made of centrally actual application in general arts classes based on movie in university. Especially, I analyzed the activities of the class with 'Untouchable: 1% friendship' among 6 films. The objects of this study are 44 students of D university in Busan Metropolitan City who take 'creative fusion from movie' general arts class which opened first semester in 2016. In this study, students were able to watch movies through the creative class, which was out of the traditional classroom method, and after 15 hours of learning the quiz online, they conducted 15 weeks as a teaching method to perform tasks, presentations, experiments, and experiences in regular class time. The results of this study are as follows. 'It is a general arts class that makes movements live,' 'It is a general arts class that shows movies from various perspectives,' and 'It is a general arts class that makes me know.' This suggests that the educational medium, which is easily accessible in everyday life, and the general arts class, which is active in the space outside the framework, are perceived as stimulating curiosity and adding fun to college students.

A study on the control law of Automatic Rudder Trim System for turbo prop aircraft (터보 프롭 항공기 자동러더트림장치 제어법칙에 관한 연구)

  • 박완기;이광현;김병수
    • Journal of the Korea Institute of Military Science and Technology
    • /
    • v.2 no.1
    • /
    • pp.121-131
    • /
    • 1999
  • Automatic Rudder Trim System(ARTS) is a device to reduce the pilot's work load for rudder trimming greatly required in varying abruptly aircraft's engine power. This paper represents a technical analysis and a design of control law of the ARTS. The control law of the ARTS is designed based on the analysis of aircraft's characteristics, system's requirements, and limitations. The control law is comprised of open loop control using the rudder trim map for a specific aircraft and closed loop control to compensate the error of the open loop control system. flight test results show that the ARTS can reduce pilot's work load for rudder trimming dramatically and can compensate the aircraft's transient yaw motion.

  • PDF