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Comparison between Response AC/A and CA/C Ratio according to Additional Spherical Powers and Prism Powers (가입렌즈 도수와 프리즘 굴절력 변화에 따른 반응 AC/A비와 CA/C비 비교)

  • Roh, Byeong-Ho;Yu, Dong-Sik;Son, Jeong-Sik;Kwak, Ho-Weon
    • Journal of Korean Ophthalmic Optics Society
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    • v.20 no.3
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    • pp.341-347
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    • 2015
  • Purpose : This study was to examine a correlation of response AC/A ratio by additional spherical powers with PD(Pupilary distance) and relative accommodation, and was to investigate correlation of CA/C ratio by prism powers. The mean differences between a reciprocal response AC/A ratio and a CA/C ratio were compared, and were suggested to be used as data in the refractive power and prism prescriptions in the clinical. Methods: The open field autorefractometer (Nvision-K 5001, Shin nippon) and Howell target at 40 cm fixation distance to 62 persons with average $22.62{\pm}2.84$ ages were used to measure the response AC/A ratio according to additional Spherical powers. The CA/C ratios were measured using the DOG card at 40cm according to prism powers. Results: When the response accommodation according to Additional Spherical power changes and the response accommodation according to prism power changes were compared, it was larger than the response accommodation according prism power change. These were significant differences statistically. The correlation of response AC/A ratio and PD is showed as r = -0.158, the CA / C ratio is shown as r = 0.093. The correlation of response AC/A ratio and relative accommodation showed as r = -0.253, the CA/C ratio showed as r = 0.566 that is predictable correlation. The correlation of response AC/A ratio and CA/C ratio showed as r = -0.355 that is low minus correlation (p = 0.000). The difference between a reciprocal response AC/A ratio and a CA/C ratio showed $0.12{\pm}0.06D/{\Delta}$ with a significant difference statistically (p=0.000). Conclusions: The correlation of relative accommodation and CA/C ratio showed that depend on the individual, The more a relative accommodation is, the higher a response accommodation of convergence by convergence stimulus is. The reciprocal response AC/A and CA/C ratio showed significant differences statistically. This can have higher CA/C ratio in patients with low AC/A ratio in clinical as an independent variable. Thus when the abnormal binocular vision was prescribed in the clinical, it is necessary to consider the accommodative response even if the AC/A ratio is a normal range.

Effects of Crop Loads on Vine Growth and Fruit Quality of 'Jinok' Grape in Unheated Plastic House (포도 '진옥' 품종의 무가온 하우스 재배시 착과량이 수체생육 및 과실품질에 미치는 영향)

  • Cheon, Mi Geon;Kim, Yeong Bong;Kim, Seong Ran;Lee, Kang Mo;Hong, Gwang Pyo;Kim, Jin Gook
    • Journal of Bio-Environment Control
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    • v.24 no.4
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    • pp.296-300
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    • 2015
  • This study was conducted to investigate optimal crop loads of 'Jinok' grape for unheated plastic house culture. The crop loads of 'Jinok' grapes were managed to be 1.3, 1.8, 2.2, 2.4, and 2.6t per 10a from 2012 to 2014. We measured vine growth and berry qualities. Crop loads were not significantly affected on plant height, trunk diameter, shoot length, and the internode length of 'Jinok'. However, the maturation of berries was delayed when the crop load was higher. And the harvest date was earlier about three weeks in an unheated plastic house compared to in an open field. The average berry weight was decreased by the higher crop load although higher crop loads made higher yields showing the lowest weight at 342g with the treatment of 2.6t per 10a and the highest weight at 363g with the treatment of 1.3t per 10a. Also, the soluble solids content showed a tendency that higher crop loads brought to lower degree Brix. The contents of P, K, Ca, and Mg in grape leaves and shoots were not significantly different by crop loads. To sum up, when crop loads were under the 2.4t per 10a, the berries were harvested as a marketable fruit having $15^{\circ}Brix$ in the cultivar 'Jinok' grape. This result could help to increase grower's benefit having improved quality of fruit for the sustainable production by the established cultivation techniques for the newly developed cultivar 'Jinok'.

Dipteran Comparison on Carcasses by Decomposition at Different Abandoned Site (사체의 유기장소별 부패진행에 따른 발생 파리류 비교)

  • Lim, Chae-Seak;Jo, Tae-Ho;Lee, Dong-Woon;Choo, Young-Moo;Choo, Ho-Yul
    • Korean journal of applied entomology
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    • v.51 no.3
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    • pp.191-205
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    • 2012
  • Because insect visitors was different depending on decomposition stage, dipterans occurred on chicken carcasses depending on postmortem intervals were compared by abandoned sites and decomposition from a serial study on arthropod occurrence from carcasses as forensic indicator. Species occurrence and decomposition of carcasses were different depending on abandoned sites (forest hill, open field, stream, greenhouse and roof), seasons (spring, summer, fall and winter), and situation (burying and non-burying). Development of carcass decomposition was faster at all sites in summer, carcass in greenhouse in winter, and unburied carcasses. Although visiting time of blow flies (Calliphoridae) (Phaenicia sericata, Lucilia illustris, Lucilia sp., Chrysomyia pinguis, and Chrysomyia megacephala) was different depending on abandoned season, their adults were generally collected from carcasses within 2 days. However, there were no visited flies at fresh stage of buried carcasses. The flesh flies (Sarcophagidae) were collected from all sites and seasons, and much faster from unburied carcasses than buried carcasses. Those were collected earlier from carcasses in greenhouse than other sites and occurrence was also shorter. In greenhouse, occurrence time of flesh flies were different depending on season; spring and summer - from fresh to active decay stage, fall - fresh to active decay stage, and winter - advanced decay to remains stage. Calliphora lata, Tricerotopyga calliphoroides, and Aldrichana grahami were dominant species and occurrences were different from other flies. These flies were active mainly from fresh to active stage. Larvae of sarcophagid flies were occurred earlier than those of calliphorid flies on buried carcasses.

The present situation and trend of China archives science (중국(中國) 당안학(檔案學)와 현황(現況) 및 발전추세(發展趨勢))

  • Feng, Fuj-Ling
    • Journal of Korean Society of Archives and Records Management
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    • v.1 no.1
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    • pp.37-52
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    • 2001
  • 1. establishment and development of China archives science: With the centuries-old history of archives and archives management, early China archives science came into being in 1930s, and the research pushed forward by archives enterprise has made great achievements since then. 1.1 Expanding research fields: Foundation

An Approach of Ecological Niche to Analysis of Recognition of 5th Grade Elementary students for Conception of Photosynthesis (생태 지위적 접근을 통한 5학년의 광합성 개념 분석)

  • Jeong, Jae-Hoon;Kim, Young-Shin
    • Journal of The Korean Association For Science Education
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    • v.31 no.4
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    • pp.513-527
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    • 2011
  • There have been studies about conceptual ecology making a profound study of conceptual changes in learners' cognitive structure. Because learners' cognitive structure have been compared to ecology, it is natural to think that conception in learner's cognitive structure have a niche as species in ecology have niches. Therefore, it is necessary to study niche approach about conception that learners recognize in their cognitive structure. The purposes of this study were to identify relationships among conceptions that 5th grade elementary school students recognize about photosynthesis and to identify how these relationships among conceptions about photosynthesis change before and after a class of photosynthesis in curriculum in terms of an approach of ecological niche which are composed of 3 domains - diversity of conceptions, relevance and frequency rate of conceptions, and competition among conceptions. Open ended questionnaire was developed by 4 fields: photosynthetic place, photosynthetic products, photosynthetic materials needed and environment factors of photosynthesis. The subjects sampled in this study were 310 5th grade elementary students in 5 cites. Before and after classes in photosynthesis in science curriculum, students were asked to write down conceptions that they knew about the 4 fields of photosynthesis of questionnaire and to write down scales of relevance from 1 to 30 about how they think the conceptions are related to the field of photosynthesis. The results of this study showed the following: First, most students have had a variety of conceptions and commonly recognized 'light' and 'water' as concepts in photosynthesis. Second, students still recognized their preconceptions like 'soil' and 'root,' etc. that were far from scientific conceptions of photosynthesis although they took classes in photosynthesis. Third, students needed to take the various strategies of teachers because they did not recognized scientific conceptions appropriately about photosynthetic fields. Fourth, it appeared that photosynthetic conceptions recognized by students had status in terms of relevance and frequency rate of conceptions, and competition among conceptions, and that they looked like the niche of conceptions in their conceptual ecologies.

Disaster and Artistic Measures: Hermann Josef Hack's Project of World Climate Refugee Camp (재난과 미술적 대응: 헤르만 조셉 하크(Hermann Josef Hack)의 기후난민 프로젝트)

  • Kim, Hyang-Sook
    • The Journal of Art Theory & Practice
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    • no.14
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    • pp.53-83
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    • 2012
  • This thesis is a study of artistic measures and climate refugees, based on Hack's World Climate Refugee Camp project. According to Hack, climate refugees appeared with the process of globalization. Hack claimed that the people who put climate refugees in danger are the industrialized nations, and therefore, their rejection of refugees is nonsense. He also stated that the fundamental solution would be the active participation of such nations. Thus, he travels around the world, encouraging participants and globalizing his project. Interestingly, the practical participation method of his climate calamity project is divided into four methods, which are all related to realizing the danger and presenting various solutions. First, the aesthetic of survival: the reason Hack focused on the warming trend and claimed that we have to accept the climate refugees as refugees comes from the thought that we are all potential refugees, and the anxiety that climate refugees may cause war in the end. The solution Hack found for surviving in such a world is to create "refugee camps" to notify people about the seriousness of climate change, and to put the "aesthetic for survival" in action. Second, a relation-oriented relationship: communication between Hack and the participants was done in various ways. They are experiencing a bond and emotions of an interrelationship through their actions in the experimental field, experiencing a new form of art, which they were not able to experience in a museum. Third, a utopian measure: Hack's utopian measure started from the fear of dystopia but Hack still believes that it is not only a dream, but that it can be realized. He claims that even though the start may be feeble, it is possible to rescue children from starvation and to treat climate refugees as proper human in the end, when communication and cooperation is done the right way and properly. Fourth, the aesthetic of global relation, the internet: the new solution Hack is trying on the internet is to make more people participate in his project. It is fate that "human are the wrongdoer and the victim at the same time", but according to Hack's opinion, social disaster can be avoided through effort and it is optimistic that we can give form to the culture revolution we are experiencing now. Hack's project illustrated the importance of daily life, compared to art inside a museum, through active participation of the people and opened up a new method of art through realistic responses to disasters. This is distinctive from the past exhibitions, where artists gave shape and form to ideals and an imaginary world, in that it shows that the artist and audience aim for creating a community-like structure, just like Bourriaud's art method. Hack's project of climate calamity illustrates that installation and action art is not only an art genre which shows installation and activities, but that it can include social and political issues and that it can be completed with the help of participants, consequently becoming a genre of modern art. Hack raises a question about art's identity through various descriptions. Artists as planners, who base their artworks on their subjectivity or the characteristics of a specific period, the people as participants, the duet of art work and play, human and human, and further, human and nature. The practical participation method, as a measure for "disaster", reveals the new art of the 21st century within Hack's artworks. Even though there are several problems with Hack's usage of art as a measure for disaster, it will actively open up a new page for the 21st century's art with the theme of disaster.

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The Characteristics of the Agricultural Management in the Less Favored Metropolitan Areas - A Case study of Bonli, Taegu- (대도시내 영농조건 불리지역의 농업경영 특성 - 대구광역시 본리마을을 사례로 -)

  • Woo, Jong-Hyeon
    • Journal of the Korean association of regional geographers
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    • v.6 no.3
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    • pp.37-52
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    • 2000
  • Generally speaking, the metropolitan agricultural regions have some advantages from the high accessibility to markets. But agriculture inevitably rests on the biological process. This study shows what characteristics of the agricultural management are found in these less favored metropolitan areas with bad natural conditions and how farm household live there. From the view point of farm household, the quality of labors they can get is quite low, and insufficient in quantity. The shortage of labor can be made up for the farming on Trust Farming System And the relatively less favored agricultural conditions prevent people from immigrating into these kind of areas, if they don't have any relationship with there. With bad natural conditions, the farm households usually cultivate relatively small areas for the purpose of self-sufficiency, and with smaller cultivating units(Baemi) of the land than in open fields. The scale of the agricultural management is largely affected by the ages of agricultural managers. The more aged the managers are, the smaller scale of the agricultural management. How to use lands is determined in accordance with the natural conditions such as percentage of sunshine and accessibility to drainage facilities -the two major factors- and more. Either owner-run farmlands or leased farmlands doesn't show any difference in each growing crops. Depending on the conditions of the lands, rice paddy is used for growing rice and field is used for growing self sufficient plants including vegetables for the farm household. Although the lack of infrastructure causes the inconvenience of living, and there exist less favored agricultural conditions, this kind of life and agricultural management style -self-sufficiency type- seems to be sustained quite longer. The less favored natural conditions for farming keeps the agricultural management style from being developed to be the level of commercialization. And the poor economic situation of farmers are continuing again and again. With the result of this study, there should be two conditions to be established previously if they want to develop these regions. First, each farm household should get to know of the importance of commercialization and try to spread it. The commercialization. should be attained through the expansion of the environmental friendly agriculture and the improvement of the previously established distribution system of the crops. Secondly, there should be a support from the government. The support will include the expansion of the infrastructures for fanning to improve the fanning conditions and the compensation system directly from the government to the farmers.

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Effects of the Drainage Methods on Phenolic Compounds and Radical Scavenging Activity of Foxtail Millet and Proso Millet (배수방법이 조와 기장의 페놀성분 및 라디칼 소거활성에 미치는 영향)

  • Jung, Ki Yuol;Ko, Jee Yeon;Lee, Jae Saeng;Jeong, Mi Sun;Oh, In Seok;Woo, Koan Sik
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.59 no.3
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    • pp.282-292
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    • 2014
  • This study investigated the changes of antioxidant compounds and antioxidant activity of foxtail millet (FM) and proso millet (PM) by drainage methods in poorly drained sloping paddy field. The experimented soils in this study were very poorly drained (VPDP) and imperfectly drained paddy soil (IDP). Two drainage methods namely under pipe drainage (UPD) and open ditch (ODD) were installed within 1-m position at the lower edge of the upper paddy fields. The soil moisture contents of UPD and ODD on VPDP were $18.52{\pm}4.58$ and $19.01{\pm}4.25%$, and IDP were $14.87{\pm}4.82$ and $18.64{\pm}3.85%$, respectively. Generally, crop yields, proximate and minerals composition of FM and PM showed significant differences by drainage methods. The total polyphenol, flavonoid and tannin contents, and radical scavenging activity of the ethanolic extracts of FM and PM showed significant differences by drainage methods. The total polyphenol content of FM and PM by drainage methods was 1.69~2.30 and 1.18~1.35 mg GAE/g, total flavonoid content was 0.31~0.76 and 0.27~0.41 mg CE/g, and total tannin content was 0.36~0.54 and 0.21~0.28 mg TAE/g, respectively. The DPPH radical scavenging activity of FM and PM was 39.53~59.81 and 27.91~40.25 mg TE/100 g, and ABTS radical scavenging activity was 113.59~152.10 and 61.38~79.19 mg TE/100 g, respectively. The antioxidant compounds and radical scavenging activity of FM and PM by drainage methods were frequently affected soil water.

Effects of the Drainage Methods on Antioxidant Compounds and Antioxidant Activity of Ethanolic Extracts on Adzuki Bean (논 재배 배수방법이 팥 에탄올 추출물의 항산화성분 및 항산화활성에 미치는 영향)

  • Woo, Koan Sik;Jung, Ki Yuol;Song, Seuk Bo;Ko, Jee Yeon;Lee, Jae Saeng;Choi, Young Dae;Yun, Eul Soo;Jung, Tae Wook;Oh, In Seok
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.59 no.3
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    • pp.350-358
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    • 2014
  • This study investigated the changes of antioxidant compounds and antioxidant activity of adzuki bean by drainage methods in poorly drained sloping paddy field. The soil moisture contents of under pipe and open ditch drainage on very poorly drained paddy soil were $18.52{\pm}4.58$ and $19.01{\pm}4.25%$, and imperfectly drained paddy soil were $14.87{\pm}4.82$ and $18.64{\pm}3.85%$, respectively. Moisture, protein, fat and ash contents of adzuki bean with drainage methods were 10.10~11.60, 14.13~21.75, 0.02~0.73 and 2.81~3.45 g/100 g, respectively. The total polyphenol, flavonoid and tannin contents, and radical scavenging activity of adzuki bean showed significant differences by drainage methods. The total polyphenol, flavonoid, and tannin contents by drainage methods were 2.73~4.14 mg GAE/g, 1.07~1.43 mg CE/g, and 1.27~1.84 mg TAE/g, respectively. The DPPH and ABTS radical scavenging activities were 2.84~4.47 and 5.11~6.74 mg TE/g, respectively. The antioxidant compounds and radical scavenging activity of the adzuki bean by drainage methods were frequently affected soil water.

Curricula Innovation Study for the Advancement of Allied Health Sciences Education through the Current Junior College System (전문대학(專門大學)의 학제(學制) 다양화(多樣化)를 통한 보건계(保健系) 학과(學科)의 계속교육과정(繼續敎育課程) 개발(開發)에 관한 연구(硏究))

  • Choi, Jong-Hak;Whang, Sun-Chul;Rhim, Kook-Hwan;Ham, Yong-Woon;Kim, You-Hyun
    • Journal of radiological science and technology
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    • v.19 no.1
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    • pp.95-120
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    • 1996
  • College level educational training system for the allied health manpower in the country is one of the oldest junior college education programs, and has been developed at very steady phase. Since the school years of the programs limited for 2 to 3 years by the education related law, qualification of the manpower is insufficient to meet the rapidly changing needs in the field of allied health and medicine. The system is comparable with that of developed countries where 4-year baccalaureate degree programs are basically required to be an allied health personnel. Thus, education and training background of allied health program graduates of the country confronts the barriers in competition and cooperation with the graduates of foreign countries at equal basis. Beside, junior college graduates can hardly find the way through advanced courses at 4-year colleges in their specialties except a few programs such as environmental sicience or courses in hygiene. It has long been sought to develop the education and training programs for junior college graduates. Some of them are already materilized and some show remarkable progress while some need to tackle. Wide opening of the opportunity to enroll extensive education program for the junior college graduates of allied health science majors in 4-year colleges with eventual grant of bachelor's degree for those who successfully completed the programs should soon be substantiated. The study was focused to emphasize the necessity of the extensive education and training for the junior college graduate allied health manpower, and to show possibility of the education program development in connection with the 4-year degree granting education programs. The outcome of the study can be summarized as followings. 1. A total number of graduates from eight allied health sciences related programs of junior colleges by the year of 1995 are 109,320. 2. According to the survey report analysed through questionnaires, 99.7% of respondents including administrative deans and professors of junior colleges agreed with the establishment of extensive education and training programs in junior colleges. 53.9% of administrative deans, 52.9% of professors and 47.6% of the graduates expected that it is possible to learn more about their majors, and to earn bachelor's degree through the extensive education programs. Other opinions include that the programs can provide supplementary opportunities to fortify in the area of basic life science, and development of research and technology. 3. It was also found through the survey that 91.2% of the deans, 87.8% of the professors and 68.2% of the graduates responded that the most appropriate organizations to open the extensive education and training programs for allied health manpower are junior colleges where allied health personnel are taught and trained. The majority of the respondents agreed that the acceptable number of credits offered for the previous 2-year junior college graduates are $50\sim60$, and those for the current 3-year graduates are $20\sim30$ units. 4. It was strongly suggested through the survey that baccalaureate degree should be granted for those who successfully completed the extensive courses. The suggestion was claimed by 94.1% of the deans, 89.4% of the professors and 83.4% of the graduates. 5. The model curricula for the extensive education and training programs for the allied health manpower are designed for the purpose of broad capability in practice, enrichment of knowledge and promotion of proficiency for the self access in the major areas. 6. To meet the universal standards of allied health education and training program, it is recommended that opening of the curricula for the extensive, and as well as intensive, courses within junior colleges(continuation education institute) should be materialized. The special baccalaureate degree programs within junior colleges are also recommended to accommodate the junior college graduates and to grant the degree fellowing successful completion of the courses. As a part of the education revolution in progress, the school years at junior college level should be flexible depending upon the nature of course and trend of the universe. For instance, the school years for the allied health manpower should be extended to two to four years from current two to three years.

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