Heat manipulation at early age has been known to help chickens cope with heat stress later in life. The present study was conducted to determine the effects of early heat conditioning at 5 days of age on performance in broilers when re-exposed to heat stress later in life. Day-old, 256 Arbor Acre boiler chicks were housed in two identical rooms where all broilers were exposed to a 23-h light: 1-h dark cycle throughout the study and provided with feed and water ad libitum. At the age of 5 days, one group was exposed to $37^{\circ}C$ for 24 hours and then returned to the temperature at which control birds were maintained (early heat condition group) while the other was maintained without heat modulation (Control). On 21 days, broilers were regrouped into 4 groups (CON+CON: control+control; CON+HS: control+heat stress; HC+CON: heat conditioning+control; HC+HS: heat conditioning+heat stress), and given 7 days for adaptation. On 28 days, birds in one room were exposed to heat stress ($21^{\circ}C{\rightarrow}31^{\circ}C$) for 3 days whereas those in the other were at room temperature. Heat stress resulted in decreased feed intake, water intake, and body weight gain (P<0.05), but increased rectal temperature and mortality (P<0.05). No beneficial effects of heat conditioning were detected when broilers were exposed to heat stress again at later in life. The present results were discussed together with other studies regarding possible differences in methods such as ages of breeders and strains, which may have resulted in the failure of heat conditioning to help broilers resist heat stress.
Kim, Dae-Hyun;Jung, Woo-Jin;Lee, Bok-Rye;Kim, Kil-Yong;Kim, Tae-Hwan
Journal of The Korean Society of Grassland and Forage Science
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v.22
no.2
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pp.145-152
/
2002
To compare the Carbon metabolic response to high temperature stress in Zoysiagrass [Zoysia matrella (L.) Merr.] and Creeping bentgrass (Agrostis palustris Huds) with respect to heat tolerance, C metabolites were determined from April to September. Sampling was carried out on an established golf course (Muan Country Club, Chonnam, Korea). Shoot mass(g Dry weight per hole cup) of creeping bentgrass started to decrease from June and recovered from August whereas that of zoysiagrass was less varied. Chlorophyll content in creeping bentgrass was significantly higher than zoysiagrass until July, and then decreased by 43% from July to August. Zoysiagrass contained higher soluble sugar than creeping bentgrass throughout experimental period. Soluble sugar in zoysiagrass increased about 58% from April to May, and less varied until August. Soluble sugar in creeping bentgrass slightly increased until July and sharply decreased at August. Starch concentration in zoysiagrass continuously decreased to September after a significant increase from April to May. A remarkable fluctuation in both starch and fluctuation concentration was observed between June and August showing high accumulation for June to July and high degradation for July to August. These results suggest that through creeping bentgrass suffers much severely from high temperature stress than zoysiagrass especially June to August. An active accumulation and degradation in nonstructural carbohydrate in creeping bentgrass during this period might be associated with heat stress.
Min-Ji Lee;Young-Gyu Ban;Heejo Lee;Young Ha Kim;Dayeong Kim;Nang-Hee Kim;Dong Eon, Kim
Proceedings of the National Institute of Ecology of the Republic of Korea
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v.4
no.3
/
pp.104-114
/
2023
In this study, the distribution, bait preference, hosts, symbionts, habitat status, and cytochrome c oxidase subunit-I sequences of the ant Linepithema humile were analyzed. This species habitat comprised approximately 1.5 km along stone crevices, flower gardens, roadsides, and container yards in the vicinity of Busan station, Korea. Feeding activity of this species was confirmed in 9 species of 7 families of plants. Which was approximately 14% of total flora (63 species of 37 families) in the studied area. Particularly, it was observed that Dendranthema indicum and Camellia japonica were the most frequently visited. Further, we verified that they interacted with four species of aphids. We identified 22 species of ants (17 genera, 4 subfamilies) inhabiting the Busan station area, including L. humile, Tetramorium tsushimae, Nylanderia flavipes and the alien species Paratrechina longicornis. In areas where L. humile was the dominant species, the habitat of local native ants was reduced by approximately 30%. Bait preference was ranked in the following order: jelly, water with glucose (25%), and yogurt, with the highest preference for baits containing sugar and protein. The 630-bp cytochrome c oxidase subunit-I sequences of the local L. humile populations were 99% identical to those of L. humile in the National Center for Biotechnology Information database, and the Argentine ants that invaded Korea had a sequence identical to that of other invasive populations from China, Japan, and New Zealand. As L. humile rapidly increases due to domestic adaptation, continuous monitoring and control strategy for eradication are needed to protect domestic biodiversity.
This study is to implement a model of CPC-mentoring program based on the mentoring theory and research environment analysis as well as to present the operation case of teaching and learning in colleges. Major research results should use the practical research methods utilizing the statistical program in order to verify the effectiveness of the program of CPC-mentoring program by comparing the before with the after of running the CPC-mentoring program of the research objects, comparison group (61 people) and experiment group (33 people). After running the CPC-mentoring program, whether there was a certification's acquisition or not of the comparison group and the experiment group, a statistically significant difference between the comparison group 34.3% (21) and the experiment group 72.7% (24), (p<0.05) was shown. The goal of the students participating in the CPC-mentoring program was to help one another in order to obtain certification. moreover, by engaging in mutually developing human relationship activities thru various methods, such as adaptation of college life, development of sociality, graduation, etc., good cooperative relationships with one another as well as further development of the relationship was formed. CPC-mentoring program is neither doing only people that want nor being effective for people only that want. A successful matching will naturally lead to all success since mentoring is human relationships is the misunderstanding. The role of a mentoring coordinator(professor) for the operation of a successful CPC-mentoring program and for the application method of detailed CPC-mentoring program was set. In addition, by considering the connectivity with the counseling guidance (shared and individual guidance) of students, which is the characterization direction of technical department of the college, it is expected to make a positive contribution if utilized in a multilateral manner.
The Journal of Korean Academic Society of Nursing Education
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v.8
no.1
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pp.108-119
/
2002
This paper as the basic study aiming the establishment of nursing theory according to Korean culture, is made to reveal the types of recognition about concepts of health immanent in Korean who have the health view, completely mixed with traditional oriental medicine and Confucianism and Buddhism and Shamanism and european scientific medicine, etc. This paper is using the Q-method, which is greatly effective in measuring the individual subjectivity, to collect rightly the concepts of health of objects. This analysis shows us the 4 types of recognition about concepts of health immanent in Korean as follows. Type Ⅰ: modern self-searching type(現代的 自己 追求型), Type Ⅱ: nature-sharing type(自然 共有型), Type Ⅲ: meaning-intentional altruism(意味 指向的 他者 中心型), Type Ⅳ: oriental adaptational type(東洋的 順應型). The men belonging to type Ⅰ have positive and self-searching view of health. They are not only interpreting the concept of health scientifically, but also positively accepting the oriental concept of health. The men belonging to type Ⅱ have strong tendency of down-to-earth. They not only have the naturalistic view of health as Taoist, but also carry the weight in the family and neighbour and regard co-sharing as excellent virtue. The men belonging to type Ⅲ are positive altruists, pursuing the meaning of life and at the same time setting the importance to the good value system. Naturally they care more the family and neighbour than themselves. The men belonging to type Ⅳ have oriental view of the world characterized by nature-adaptation. They positively agree to the Shamanism, Buddhism, Confucianism and Oriental concept of health. In conclusion, in all types we can see that Korean understand the harmony of man and nature as fundamental principle of heath and carry the more importance to the mind(心) than body(身) and at the same time esteem more the family-centric, oriental and organic community than individual. All above facts is immersed in the concepts of health of Korean as a common denominator.
Journal of the Korean Society of Clothing and Textiles
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v.15
no.4
s.40
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pp.417-430
/
1991
The purpose of this study is to evaluate the level of seasonal adaptability of rural residents from a viewpoint of clothing weight. In this study, the 631 rural residents of both sexes and all generations were selected from 5 rural districts of Kyunggi, Kangwon, Chungnam, Chonnam and Kyungbuk province, and the survey on clothes worn by subjects carried out 4 times-once in each season-from 1989. 7 to 1990. 4. The clothing weight per a unit body surface area that is the index of clothing insulative value was calculated and the seasonal variations of clothing weight were investigated in each region, sex and age. The results of this study were as follows. 1. The clothing weight changed with the season and that increased in order of summer, autumn and spring, winter. But there was no significant difference between spring and autumn. 2. In general, the clothing weight of males was havier than that of females through out the year But the underwear clothing weight of males was lighter than that of females. 3. There were significant differences of clothing weight among age groups in the spring, autumn and winter and $14\~29$ age group had smallest clothing weight. Clothing weight increased with age above 29 years and decreased with age below 20 years. In the summer there was no significant di florence of clothing weight among age groups except that clothing weight of $14\~19$ age was significantly havier than the others. 4. The thermal sensation of the clothed body was comfortable in the spring, autumn and winter but that was warm in the summer. 5. The seasonal adaptability of rural adults from a viewpoint of clothing weight was relatively good but the children's clothing life had some problem because they wore too much.
The purpose of this study was to examine the effects of MMTIC group counseling program on self-esteem of elementary school students. The hypothesis was that the self-esteem test scores of experimental group would be significantly higher than those of control group. The subjects were the twenty 5th graders sampled from the 66 5th graders of D Elementary School in Boryeong City based on self-esteem test scores. The 10 subjects were randomly assigned experiment group and others were assigned control group. The self-esteem test by Mun, Yong Woo (2002) modified from the measurement of Kim, Heui Hwa (1989) was administrated as pre and post test. The experimental group has experienced MMTIC group counseling program. On the other hand, the control group has not been given any advice during the counseling periods. The counseling was once a week at two o'clock in the afternoon for ten weeks from the eleventh of May to sixteenth of July in 2003. Each counseling session lasted sixty to eighty minutes. The group counseling program, which has been used in this research, has been adapted to the level of elementary students with the consideration of MBTI and MMTIC Workshop in reference to a few theses related to MMTIC development program (Jung, Gyeong Yeon, 2001: Gang, Jae Jeong, 2002; Lee, Jae Mo 2002). The results were analysed by t-test. These statistics with a quantitative result has been supplemented with a qualitative analysis by a questionnaire and the descriptions of impression of subjects of experimental group. The results of this research was that the analyses of the questionnaire and a description of their impression have shown that the counseling has had an significantly impact on their understanding themselves and others. In particular, this program has been positively conducive to receptive relationships to others. In conclusion, the MMTIC group counseling program has helped elementary students I understand themselves and others, increase receptive competence, encourage their confidence, improve personal relationships and enhance their adaptation to their school life. It suggests that this program has a feasible effect on children's sense of self-esteem.
Throughout the history of fashion and fashion collections, fashion design has been influenced by fine arts. Philosophy and concept of fine arts has been inspiration on the development of fashion design which brings on the close interrelation between fine arts and modern fashion. In order to analyze the affect of fine arts such as Pop art on fashion this study inquires into new perspective that considers different social contexts on the premise that acknowledges the essential difference between the genre of fine arts and design. This study researches the influence of Pop art which has been inspiration on fashion designers since the birth in the 1960s and often appears in recent fashion trends. In view of the results achieved in this study, Pop art-inspired fashion does not concern the aesthetic contemplation of everyday life in western society anonymously as in Pop art but deals with pop art as new ideas in a way that adopts images randomly from designer's convenience which is equivalent to the conception of pastiche. In addition, it was inferred that Peter Pan syndrome exert influence as a mental process and Kidult trend operate on Pop art-inspired fashion as a social phenomenon. On the basis of the theoretical background, the formative features in Pop art-inspired fashion from Spring/Summer 2000 to Spring/Summer 2004 collection has been analyzed. The results fall on the following four categories; those are the use of Pop color which resembles the Hard-edge technique in Pop art, direct appropriation of Pop art such as Andy Warhol and Roy Lichitenstein's works on clothes and accessories, adaptation of Pop art's subject using brand names of mass products or icons in mass culture as design motives, and application of representation method in Pop art such as Andy Warhol's silk screen techniques or Tom Wesselman's composition of pictures.
Journal of the Korean Society of Environmental Restoration Technology
/
v.12
no.3
/
pp.49-58
/
2009
This study was done to provide a case model with a concept of environmental integration based on the water circulation system. Area of interest (AOI) is the Eastern Pangyo New Town area, which has several advantages in adaptation of a water circulation system. The AOI has a potential of maintaining water resources, and has a good condition to construct the water circulation system. Research done for the purpose of the establishment of the water circulation system in the Eastern Pangyo New Town shows the following. The main sources of water supply in the water circulation system in the Eastern Pangyo New Town is from two subway stations and runoff water, along with the natural water flowing from the mountains, rain water, and stream water. It was determined that more than 35,000 tons of water would be needed for the creation of water circulation system at the Eastern Pangyo. If the creation of infrastructure for the use of runoff and rain water as well as the periodic management can be provided, it can serve as the new model for a new city with water circulation system. In addition, since the Eastern Pangyo New Town water circulation system can secure enough amount of water resources, natural drainage system (NDS) in which it can be in dry condition in non-rainy days, is applied and connected to the typical waterways. Such water circulation system has many positive aspects including the wise use of water resources, and providing wild Life animals corridors and habitats. Also, the water circulation system can lead to the environmental education to the residents and visitors on environmental awareness of the water circulation system and their environment.
The Journal of the Convergence on Culture Technology
/
v.4
no.4
/
pp.273-277
/
2018
This study attempted to describe the essential structure of lived experience of a students trans ferring into the nursing program. A study on the experience of students who have a major in this of health or who have experience in a medical institution is aimed at identifying the nature of incorporating nursing into each individual. The experiences were analyzed and the meaning of the experiences was understood by applying the phenomenolgical Analysis method of Colaizzi. The total number of people who majored in health care and five experienced medical institutions was nine, which resulted four themes and 14 central beauty. Based on the results of this study, it will provide basic materials for fostering professional nursing personnel at various nursing sites by understanding the nursing departments and experiences of students with experience in the health care system.
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