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Studies on the Applicability of Lactose, Casein, and Urea for the Silkworm Rearing Industry as the Useful Vehicles in a Series of Attempts to find Some Therapeutic Agents that can be administered orally for treating Silkworm Diseases (유당, 카세인, 및 요소의 경구투여용 누에병치료약 부형제로서의 응용가능성에 관한 연구)

  • 이장락
    • Journal of Sericultural and Entomological Science
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    • v.17 no.2
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    • pp.133-139
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    • 1975
  • For developing the therapeutic agents to be administered orally for treating certain silkworm diseases and applying them to clinical conditions, vehicles suitable for the agents are needed. The author presumed that Lactose, Casein, and Urea, respectively, have an effectiveness as the vehicle. A series of experiments were carried out on these substances for conforming the applicability of the vehicles at the silkworm rearing house of the College of Agriculture, at Seoul National University during the spring silkworm rearing season of 1974 and the spring and autumn seasons of 1975. The author recognized, Lactose, Casein, and Urea, when put on the mulberry leaves in a powdered form, are eaten along with the leaves by silkworm. Thus, the systemic administration of them to silkworms are possible. The author administered these individual substances orally to silkworm larvae in doses of l0mg., 30mg., 50mg., and 100mg. per gram of the body weight of the silkworm larvae at intervals of once a day, once every two days, and once every three days for 15 days. This was carried out from the first day of the fourth instar to just before mounting. The influences of these substances on the growth of silkworm larvae and the cocoons made by the larvae were observed. The author found out after completing the experiment that Lactose had no effect on growth and cocoon formation. This was observed in all cases. Casein inhibited the growth of silkworms except in the case of administered doses of once every third day in whick the growth and the cocoons were normal but the administration of the agent brought considerably large numbers of abnormal cocoons in every case. Urea inhibited both the growth and the formation of tile cocoons in most cases. For the confirmation of the clinical effectiveness as the vehicles for some therapeutic agents, the three substances, Lactose, Casein, and Urea, will be investigated more closely for the mixing amounts needed and other pertinent data.

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An Exploration of Compensation Satisfaction Determinants and Influence Analysis on Job Commitment for S&T Manpower (과학기술인력 보상 만족도 결정요인 탐색과 근속에 대한 영향 분석)

  • Jeong, Kyoung-Ja;Lee, Joo-Ryang;Lee, Young-Min
    • Journal of Technology Innovation
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    • v.18 no.2
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    • pp.1-32
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    • 2010
  • It is well known that compensation satisfaction of employees is closely related to work attitude, job commitment, and employees'intentions to stay on the job. These known facts can also be applied to the professionals engaged in science & technology as well. Many studies have concluded that the Korea's losing competitiveness in the area of science & technology was mainly attributed to the distorted compensation system. In this vein, this paper identifies the potential determinants that affect the compensation satisfaction of S&T professionals, and to empirically examines the determinants influences on job commitment and intention to stay. This was done by acquiring data from S&T professionals currently being employed in firms, universities, and institutions. Consequently, for professionals engaged in science & technology, the compensation satisfaction was demonstrated to be largely influenced by job accomplishment, monetary compensation, and social compensation in order. In conclusion, to improve compensation system for S&T professionals, firstly, it is recommended to enhance job accomplishment by endowing more discretionary authority to conduct research. Secondly, the relatively lower-valued labor forces in S&T area will necessitate more economic support and compensation. Finally, the social compensation should be strengthened by not only ameliorating social status, but also improving labor liquidity and job security.

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The Development of the Convergence Education Program based on the Creation of Scientific and Cultural Content (과학문화콘텐츠 구성을 기반으로 한 융합형 교육 프로그램의 개발 방안)

  • Cho, Nam-Min;Kim, So-Ryun;Son, Dal-Lim
    • The Journal of the Korea Contents Association
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    • v.15 no.1
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    • pp.506-518
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    • 2015
  • Recently there are growing needs and demand to enhance 'Unity of knowledge' as the concept of "Creating new value through integration and convergence" is developing rapidly in many different areas in the society. This also has significant implication to education. Especially, it requires paradigm shift in terms of required capabilities and qualifications for the students with science major. To accommodate this trend, Natural Sciences and Engineering's College has been increasing convergence education which focus on cultivating creative and cooperative learning capabilities as well as acquiring fundamental knowledge of individual majors. However, convergence education developed and implemented by Sciences college or liberal education so far has been mechanical combination of knowledge from different academic fields - not effectively integrated and interdisciplinary education. Given this situation, this research is to develop and propose a "convergence education program based on the development of scientific and cultural contents" as an education tool to enhance capabilities to apply and re-create integrated knowledge as well as acquire and learn existing knowledge. Education program developed in this research aims to achieve two different and sequential capabilities. First is to understand 'Science and Technology' and 'Cultural Archetype' which would be essential and useful to create cultural contents. Second is to develop capabilities to convert this understanding into cultural contents - a storytelling capability. This education program is differentiated in that it defines cultural contents as a medium to converge and integrate science and technology and humanities. By leveraging the concept of cultural content and storytelling, this education program would be able to overcome restrictions of existing interdisciplinary approach. Also, this program would encourage students to try in-depth research and new applications, and develop logical and creative thinking.

Evaluation of Autoheated Thermophilic Aerobic Digestion Process for the Treatment of Pig Manure Wastewater (돈사폐수의 고온 호기성 소화공정 적용 타당성 평가)

  • Chung, Yoon-Jin;Cho, Jong-Bok;Lee, Jin-Yong;Lee, Jong-Hyoung
    • Journal of the Korea Organic Resources Recycling Association
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    • v.3 no.2
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    • pp.103-114
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    • 1995
  • Since autoheated thermophilic aerobic digestion (ATAD) process has various advantages for the treatment of high-strength organic wastewater, active research and field application has been applied in U.S.A. and Canada, recently and the interest in ATAD process has been elevated for treating high-strength organic wastewater efficiently in Korea. Therefore, various experiments were carried out to evaluate the feasibility of ATAD process for the treatment of pig manure wastewater. The results of this study showed possibility to reuse pig manure wastewater as wet fodder or liquid compost, since ATAD process led excellent stabilization on the basis of odor and putrefaction. However. digested sludge can not be provided as wet fodder to most of hog farms without changing dry feeder system into wet system and as liquid compost to hog farms not having their own grass land. Since the results showed that the increase of temperature in reactor was resulted not from energy by biological activity. but from mechanical mixing energy. the reactor investigated in this study was against the principle of ATAD process. Therefore. if pig manure wastewater treated by ATAD can not be utilized as wet fodder. it is not economical to adopt ATAD process only for the treatment of wastewater.

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A Study on Development of Convergence Design Education for an ability of Empathy Enhancement during the 4th Industrial Revolution era -Focusing on Domestic and Foreign University Cases- (4차 산업혁명 시대의 공감능력 배양을 위한 융합 디자인 교육 개발에 관한 연구 -국내·외 대학사례를 중심으로-)

  • Kim, Ji-Young;Choi, Hee-Young;Kim, Seung-In
    • Journal of Digital Convergence
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    • v.16 no.3
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    • pp.451-456
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    • 2018
  • The purpose of this study is to propose the direction of convergence design curriculum of domestic universities in order to cultivate ablility of empathy in the $4^{th}$ industrial revolution era. The research methodology was firstly reviewed through the literature review, and the theoretical background about the background and design reengineering which became important in the time of the superconducting connection was examined, and the case study of the present situation of the convergence design curriculum of the domestic and foreign universities. As a result, it suggests a curriculum for the integration of undergraduate and graduate curriculum, which is a curriculum in which the design based on empathy is the key to linking other academic fields. Based on this, I hope that it will be used as a reference material for the activation of convergence design education in Korea in the future.

Preoperative Chemotherapy in Advanced Stomach Cancer (Pros) (위암에서의 수술 전 선행항암화학요법(in the View of Pros))

  • Park, Sook Ryun
    • Journal of Gastric Cancer
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    • v.8 no.2
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    • pp.57-64
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    • 2008
  • In gastric cancer, the only potentially curative treatment is surgery that attempts to achieve curative (R0) resection. However, despite the use of curative resection, a recurrence develops in a high percentage of patients, especially in cases of serosa and/or lymph node involvement. As a strategy to improve the survival of the patients with resectable advanced gastric cancer, neoadjuvant chemotherapy has been evaluated in several phase II trials and a few phase III trials. The results of these trials have confirmed the feasibility and safety of this approach with no apparent increase in surgical complications. Recently, the findings of a large phase III randomized trial (MAGIC trial) have indicated that compared to the use of surgery alone, perioperative chemotherapy, using both a neoadjuvant and adjuvant strategy, decreased the number of T and N stage cancers and improved survival. The results of another recent phase III trial (FNLCC 94012/FFCD 9703) also showed that compared to the use of surgery alone, perioperative chemotherapy improved the R0 resection rate and survival. In both trials, the improved outcomes may be attributed to the use of neoadjuvant chemotherapy because of poor compliance with adjuvant chemotherapy. These results cannot be directly translated to clinical practice in Korea due to differences in surgical techniques and outcomes. However, the findings of a few small phase II and III trials performed in patients with locally advanced gastric cancer in Korea have also suggested that neoadjuvant chemotherapy would result in the improvement of the R0 resection rate and down-staging of the disease. More effective chemotherapy regimens are needed in future large randomized trials to determine the subset of patients that will benefit from neoadjuvant chemotherapy and to determine the extent of benefit.

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Effect of Fermentation Temperature on Quality Characteristics of Apple Wine (발효온도가 사과와인 품질 특성에 미치는 영향)

  • Kwak, Han Sub;Seo, Jae Soon;Bae, Haejung;Lee, Hwajong;Lee, Youngseung;Jeong, Yoonhwa;Kim, Misook
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.45 no.1
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    • pp.155-159
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    • 2016
  • The objective of this study was to investigate the effect of fermentation temperature on quality characteristics of apple wine. Apple wine mashes were fermented in 15, 20, and $25^{\circ}C$ water bathes for 9 days. The pH levels of all samples were below 4 from 24 h of fermentation until the end. Total acidities of 0.05% acetic acid solution were 7.8, 7.4, and 7.0% in the 15, 20, and $25^{\circ}C$ fermented samples, respectively. The evaporation of esters generated by combining alcohol and organic acids might be the reason for lower total acidity for high temperature fermentation. Alcohol contents of the 20 and $25^{\circ}C$ fermented samples were 6.5 and 6.6% (v/v), respectively, whereas that of the $15^{\circ}C$ fermented sample was 5.6% (v/v) and significantly lower than the others (P<0.05). Methanol contents were 0.68, 0.82, and 1.69 mg/L in the 15, 20, and $25^{\circ}C$ fermented samples, respectively. Fermentation at higher temperatures generated higher methanol content in apple wine. On the other hand, acetaldehyde contents were 3.43, 2.39, and 1.02 mg/L in the 15, 20, and $25^{\circ}C$ fermented samples, respectively, due to the lower boiling point of acetaldehyde ($20.2^{\circ}C$). Based on the results, a fermentation temperature of $20{\sim}25^{\circ}C$ is effective for apple wine fermentation.

Original Form of Castle Town and Modern Transformation of Eupchi(county seat) Landscape in Naepo Area, Korea (내포지역 읍성 원형과 읍치경관의 근대적 변형 -읍성취락의 사회공간적 재편과 근대화 -)

  • 전종한
    • Journal of the Korean Geographical Society
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    • v.39 no.3
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    • pp.321-343
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    • 2004
  • In principal, the original form of Eupchi landscape in Naepo reflects a traditional idea regarding direction as a connection with one's fortune and naturalization strategy of power. In reality, the weight for the landscape inside the castle town was distinct by locality according to the conditions of natural geographies and main function of the castle town. In other words, the traditional Eupchi landscape was shaped under the fixed principles but it was simultaneously reflecting the local temporality and spatiality. As Chosun Dynasty went under the Japanese colonization, Eupchi in the traditional period started to evolve into a modem city. That is to say, the traditional Eupchi as a political place became to change into the center of capital accumulation, stronghold of economy and education, and center of town beyond the function as a place for government and administration. Therefore, the process of change from the landscape of Eupchi to a modem city was a kind of revolution in the form and function, and it was also a very rapid rearrangement of social space. The disparate element of landscape and double social space worked as a vital inertial element in the urban structure of Naepo area until the post independence and evolution of landscape.

A Study on the UCC Copyright which uses the Broadcasting Contents and the ODR(Online Dispute Resolution) through the Online Technical embodiment : Focusing on the CCl as the Conversational law Approach (방송콘텐츠를 이용한 UCC의 저작권 문제와 온라인 기술 구현을 통한 ODR(Online Dispute Resolution)의 가능성에 관한 연구 : Conversational Law 접근으로써 CCL을 중심으로)

  • Kim, Mi-Sun;Yu, Sae-Kyung
    • 한국HCI학회:학술대회논문집
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    • 2008.02b
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    • pp.558-564
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    • 2008
  • The study aims to examine the UCC (User Created Contents) Copyright which use the broadcasting contents. UCC are classified by UGC(User Generated Contents), UMC(User Modified Contents), and URC(User Recreated Contents). Especially UMC and URC correspond to a problem of copyright. Following the Copyright Protection Center investigation in 2006, it reported that 83.7% UCC are infringement of copyright. In spite of remarkable the UCC copyright problem, the concrete resolution does not exist. Also it is difficult to apply the offline legal conformity because of online nature of the UCC. The study observes the UCC copyright dispute instances which use the broadcasting contents and investigates a resolution of the UCC copyright. Considering the online media nature, it tries to analyse CCL(Creative Common License) as the ODR(online Dispute Resolution). It is meaningful to search the possibility of UCC copyright problem through the online technical embodiment.

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A Study on the Academic Dropout of College Students (대학생의 중도탈락에 관한 연구(D대학 중심))

  • Lee, Jae-Do
    • Journal of the Korea society of information convergence
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    • v.1 no.1
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    • pp.47-54
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    • 2008
  • This study analyzed the status and causes for the dropouts of college based on the survey conducted among 14,210 freshmen attending D College, other than the supernumerary special selection, from 2001 through 2005. A significant difference was shown in all items of general characteristics. The dropout rate of women, generally selected and general highschool graduated were higher than for men, specially selected and special high school graduated, respectively. The most dropouts were due to Not Return(40.16%), followed by Unenrolled(32.98%), Voluntary Leave(26.05%) and Expelled(0.81%) in order. In the distribution of the central tendency values measured from the entire subjects, the high school records and the days of absence showed a positive skewness, while the college records showed a negative skewness with the data mostly around a higher grade. The standard deviation indicating that the dropouts got the scores higher than those of the continuing students demonstrated that there was relatively insignificant difference in scores between two groups. It was demonstrated that both the high school records and the days of absence affected the dropout. The lower the high school records were, and the more the days of absence were, the more influence both items had on the dropout. The influence degree of each item was similar. Lower the scores were in terms other than the first term in the freshmen year, the more influence it had on the dropout. The most dropouts were influenced by the scores of the freshmen year, followed by the credits of the second term, the scores of the first term, the scores of the second term, and the credits of the first term in the freshmen year. Among the general characteristic items, the most dropouts were influenced by the course of study, followed by the gender. The effect of other items was insignificant.

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