• Food Science of Animal Resources
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• v.28 no.5
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• pp.604-609
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• 2008

Analyses were conducted to estimate carcass component of yield grade factors by sex and live weight class and to develop the prediction equation of retail product weight by sex in Korean native cattle (Hanwoo). Data from 42,113 Hanwoo carcasses were used to estimate the traits of yield grade factor and an additional 1,066 carcasses were used to develop the prediction equation of retail meat weight. The average of fasting weight of cow, bull and steer were 529 kg, 596 kg, and 634 kg respectively. Carcass weight (CW), backfat thickness (BFT), loineye area (REA), Index score of wholesale meat and yield grade were significantly (p<0.01) affected by sex and live weight. The lean meat percentage, fat percentage and bone percentage based on the weight of cold carcasses were significantly different (p<0.05) between sex groups. The equation of predicting the retail meat product from this study could be expressed as a multiple regression $Y=-4.18+0.63{\times}CW\;(kg)-0.17{\times}BFT\;(cm)+0.16{\times}REA\;(cm^2)$, $R^2=0.93$. Among the independent factors, the BFT was the highest contributor to the prediction equation. Using the equation from this study should allow for rapid, precise and cost-effective assessment of the retail product in Hanwoo beef carcasses.

• Journal of Korean Home Economics Education Association
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• v.19 no.3
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• pp.77-89
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• 2007

The purpose of this study was to investigate the HE(home economics) teachers' altruistic attitudes and levels of moral education in the middle and high schools. Data was collected from the survey mailed to the middle and high school HE teachers in Ulsan city. The 114 questionnaires were used for final analysis. SPSS/WIN for 10.0 program was used for analysis of the frequency and percentage, mean and standard derivation, T test, and One-way ANOVA according to the research questions. The results of this study were as the follows: First, HE teachers' altruistic attitudes were higher than average. They considered that trying their best in the virtue of social responsibility was very important. And they were inclined to share in others' situations and emotions with the empathic attitudes. Second, the levels of moral education in HE class were higher than average. Teachers valued moral virtues highly, such as respect for life, diligence and sincerity, courage, and respect for parents and the elderly. Third, HE teachers' individual variables, such as institution type shows the statistically meaningful difference in the levels of moral education. Teachers' group with more educational career and aged teachers' group, and public school teachers' group provided moral education more than the others.

• The Journal of Korean Philosophical History
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• no.43
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• pp.171-202
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• 2014

The purpose of this study was to explore the changes of right people for society on the period from liberation in 1945 to democracy in the late 1990s. Those periods classified into 'Transitional Era', Industrial Era and 'Democracy Era' based on historical events significantly influenced the changes of value system of Korean people or Korean society. In this study, not only main values and right people for society but also the way of changing value system in those periods were suggested by investigating factors of politics, economy and society. The results are as follows : Main values and right people for society on each period were as follows : In Transitional Era, main values were manners and social norms, and right people for this period were practical intellectuals pursuing the principle of action-oriented truth-and- knowledge-seeking. In Industrial Era, main values were sincerity, diligence, self-help and collaboration, and right people for this period were skilled man having occupational ability which was essential for economic development. In Democracy Era, main values were sincerity, participation, equality and coexistence, and right people for this period were scientific talented man who can make the survival of the country and prosperity in the crisis of the slowdown in economic growth A discussion of right people for each era, proposed that emphasis on the pragmatic and practical type of person in those days required, On the other hand, emphasized that were considered important of Community value.

• The Journal of Korean Philosophical History
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• no.39
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• pp.115-142
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• 2013

The purpose of this study was to explore the changes of values in Korea focused on the period from liberation in 1945 to industrialization in the late 1970s. Those periods classified into 'Transitional Era' and 'Industrial Era' based on historical events significantly influenced the changes of value system of Korean people or Korean society. In this study, not only main values and right people for society but also the way of changing value system in those periods were suggested by investigating factors of politics, economy and society. The results are as follows : First, main values and right people for society on each period were as follows : In Transitional Era, main values were manners and social norms, and right people for this period were practical intellectuals pursuing the principle of action-oriented truth-and- knowledge-seeking. In Industrial Era, on the other hand, main values were sincerity, diligence, self-help and collaboration, and right people for this period were skilled man having occupational ability which was essential for economic development. Second, lasting value in Transitional Era and Industrial Era was patriotism. The patriotism in early Transitional Era was appealed to nation and people because of the collapse of ruling system and the absence of leaders, however, the patriotism changed to loyalty towards a national leader or seniors after the formation of new ruling system by building nation and electing a leader. On the other hand, the patriotism of Industrial Era was distinctly defined purpose for carrying out national economic policy and overwhelming Democratic People's Republic of Korea with anti-communist spirit and unification will.

• The Journal of Korean Philosophical History
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• no.59
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• pp.313-342
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• 2018

Gubong Song Ik-pil could not behave according to his aspiration directly due to restrictions in his social standing. Despite that, he actually did so indirectly through either close friends or younger students by exhibiting 'cheobyeonwigwon (處變爲權) with the goal of jichijuui (至治主義). He insisted on people-oriented politics grounded on cheonmyeongsasang (天命思想) and also suggested the humbleness of the royal family and jinhyulchaek (賑恤策) based on love of the people. In addition, he promoted public welfare and stability to enhance patriotism and also insisted on the policy of strengthening national defense with seoeolgongsacheon (庶?公私賤)'s provision of military service through the enforcement of yangcheonjongbujongmobeop (良賤從父從母法). Also, according to the letter sent to Lee San-bo, he suggested public service ethics, for instance, personally, getting rid of ulterior motives, exhibiting diligence, integrity, and wisdom, and doing one's utmost to handle tasks fairly without causing any problems and externally, being actively involved in managing and utilizing persons of ability and also relieving the poor and managing masters as well. In brief, we can assume that Song Ik-pil's thought of statecraft (經世思想) is the concrete methodology to reach the politics of kingcraft called 'jichi (至治)' by stabilizing public welfare grounded on benevolent and benign administration. He is often compared to Jegalryang on account of his innate qualities and cleverness. He was equipped with the excellent capacity of gyeongse even referred to as the moju (謀主) of four persons, Yi Yi, Seong Hon, Jeong Cheol, and Lee Gwi, and harshly criticized as a slick evil (奸鬼), too. His gyeongsesasang, however, ended up being incomplete due to restrictions in his social status. He was a person who loved the people more than anyone else, kept suggesting innovative reform plans to stabilize the people's lives, and was capable of practicing them all. His ideal of jichi was left unfulfilled, however.

• Korean Journal of Culture and Social Issue
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• v.18 no.4
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• pp.481-503
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• 2012

This study aims to investigate the effects of the Big Five Aspects on psychological adjustment and the practical use of the Big Five Aspects in personality studies. Correlations between psychological adjustment(subjective well-being, life satisfaction, anxiety, depression) and the Big Five Aspects were compared to correlations between the Big Five and psychological adjustment. The results showed distinction between two aspects within each of the Big Five that major personality traits that are actually related to psychological adjustment were found. Multiple regressions were used with subjective well-being, life satisfaction, anxiety, and depression as criterion variables to investigate the effect of the Big Five Aspect on psychological adjustment and the results are as followed. Big Five Aspects accounted for 66.2% of the variance in subjective well-being and withdrawal, compassion, industriousness, enthusiasm, assertiveness, openness significantly predicted subjective well-being. Life satisfaction and depression were significantly predicted by withdrawal and enthusiasm. Withdrawal was the only variable that significantly predicted anxiety. Multiple regression also showed that withdrawal and enthusiasm were the most consistent, accountable variables in predicting overall psychological adjustment. This findings indicate that individual's personality traits played a significant role in predicting subjective well-being and mental health as consistent with past findings, and that the Big Five Aspects can offer more detailed and specific description than the Big Five can. Finally, the research discusses implications, limitations and suggestions for further studies.

• The Korean Journal of Pesticide Science
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• v.14 no.2
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• pp.148-156
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• 2010

S59-4 isolate was evaluated as a potential biocontrol agent using in vivo wounded garlic bulb assay. When the spore suspension ($10^5$ spores/$m\ell$) of Penicillium hirsutum was co-inoculated with cell suspension of S59-4 isolate on wounded garlics, the isolate showed high suppressive effect to disease development. The isolate was identified as Pantoea agglomerans S59-4(Pa59-4) through Biolog system. Furthermore, soaking garlic bulbs in the suspension of Pa59-4 significantly reduced garlic decay caused by P. hirsutum. The optimal concentration of Pa59-4 for controlling garlic blue mold was $10^7\sim10^8$ cfu/$m\ell$. And suppressive effect of Pa59-4 on garlic storage decay reduced as inoculation concentration of Penicillium hirsutum increased. In addition in order to investigate population dynamics of Pa59-4 on application site of garlic cloves, two antibiotic markers, pimaricin and vancomycin were selected. Bacterial density of Pa59-4 on the wounded garlic cloves increased continuously both under room temperature condition and low temperature condition until 30days after application of Pa59-4, meanwhile that of Pa59-4 on intact garlic cloves increased until 15days after application of Pa59-4 and thereafter decreased continuously. Two culture media for mass-production of Pa59-4, LB medium and TSB medium, were selected. By-product of bio-fungicide formulated by mixing white carbon and bacterial suspension of Pa59-4 suppressed by 40 to 50% garlic blue mold. Above results suggest that Pa59-4 be a promising control agent against garlic blue mold.

• The Korean Journal of Mycology
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• v.25 no.1 s.80
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• pp.10-19
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• 1997

Fusarium wilt of radish (Raphanus sativus L.) is caused by the Fusarium oxysporum f. sp. raphani (FOR) which mainly attacks Raphanus spp. The pathogen is a soil-borne and forms chlamydospores in infected plant residues in soil. Infected pathogen colonizes the vascular tissue, leading to necrosis of the vascular tissue. Growth promoting beneficial organisms such as Pseudomonas fluorescens WCS374 (strain WCS374), P. putida RE10 (strain RE10) and Pseudomonas sp. EN415 (strain EN415) were used for microorganisms-mediated induction of systemic resistance in radish against Fusarium wilt. In this bioassy, the pathogens and bacteria were treated into soil separately or concurrently, and mixed the bacteria with the different level of combination. Significant suppression of the disease by bacterial treatments was generally observed in pot bioassy. The disease incidence of the control recorded 46.5% in the internal observation and 21.1% in the external observation, respectively. The disease incidence of P. putida RE10 recorded 12.2% in the internal observation and 7.8% in the external observation, respectively. However, the disease incidence of P. fluorescens WCS374 which was proved to be highly suppressive to Fusarium wilt indicated 45.6% in the internal observation and 27.8% in the external observation, respectively. The disease incidence of P. putida RE10 mixed with P. fluorescens WCS374 or Pseudomonas sp. EN415 was in the range of 10.0-22.1%. On the other hand, the disease incidence of P. putida RE10 mixed with Pseudomonas sp. EN415 was in the range of 7.8-20.2%. The colonization by FOR was observed in the range of $2.4-5.1{\times}10^3/g$ on the root surface and $0.7-1.3{\times}10^3/g$ in the soil, but the numbers were not statistically different. As compared with $3.8{\times}10^3/g$ root of the control, the colonization of infested ROR indicated $2.9{\times}10^3/g$ root in separate treatments of P. putida RE10, and less than $3.8{\times}10^3/g$ root of the control. Also, the colonization of FOR recorded $5.1{\times}10^3/g$ root in mixed treatments of 3 bacterial strains such as P. putida RE10, P. fluorescens WCS374 and Pseudomonas sp. EN415. The colonization of FOR in soil was less than that of FOR in root part. Based on soil or root part, the colonization of ROR didn't indicate a significant difference. The colonization of introduced 3 fluorescent pseudomonads was observed in the range of $2.3-4.0{\times}10^7/g$ in the root surface and $0.9-1.8{\times}10^7/g$ in soil, but the bacterial densities were significantly different. When growth promoting organisms were introduced into the soil, the population of Pseudomonas sp. in the root part treated with P. putida RE10 was similar in number to the control and recorded the low numerical value as compared with any other treatments. The population density of Pseudomonas sp. in the treatment of P. putida RE10 indicated significant differences in the root part, but didn't show significant differences in soil. The population densities of infested FOR and introduced bacteria on the root were high in contrast to those of soil. P. putida RE10 and Pseudomonas sp. EN415 used in this experiment appeared to induce the resistance of the host against Fusarium wilt.

• Research in Plant Disease
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• v.16 no.2
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• pp.163-169
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• 2010

To screen for potential biocontrol agents against postharvest disease of garlics caused by Penicillium hirsutum, a total of 1292 isolates were isolated from the rhizoshere or rhizoplane of Allium species. Among them, S59-4 isolate was selected as a potential biocontrol agent by in vivo wounded garlic bulb assay. The isolate was identified as Pantoea agglomerans (Pa59-4) through Biolog system. Pa59-4 did not inhibit the mycelial growth of P. hirsutum in dual-culture with P. hirsutum on tryptic soy agar. In order to elucidate mode of action of Pa59-4 on biological control, nutrient competition between Pa59-4 and P. hirsutum was investigated by the simple method using tissue culture plates with cylinder inserts containing defusing membrane reported by Janisiewicz et al. (2000). The results showed that Pa59-4 effectively suppressed spore germination and mycelial growth of blue mold in the low concentration (0.5%) of garlic juice, but it did not suppress those of blue mold in the high concentration (5%) of garlic juice. This result suggests that the mechanism in biocontrol of garlic blue mold by Pa 59-4 may be involved in nutrient competition with P. hirsutum on garlic bulbs.

• The Korean Journal of Mycology
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• v.24 no.1 s.76
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• pp.38-48
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• 1996

The survival or colonization of beneficial organsisms and suppression of root rot of ginseng (Panax ginseng) by two distinct bacteria, Pseudomonas cepacia, Bacillus cereus and three mycorrhiza in pot soil were investigated and compared with uninoculated root. In separate inoculation, colonization of roots by P. cepacia was maintained at 6.25 (log cfu/g root) during growth for 10 days under pot culture conditions comparing to $5.62{\sim}6.19$ by mixed treatment with other organisms. Colonizations of P. cepacia were gradually decreased from 6.25 (log cfu/g root) in 10 days growth to 3.01 (log cfu/g root) in 270 days incubation period. This reduction was also investgated in combination treatments by B. cereus or F. solani. The numbers of Fusarium spp. were colonized high number in rhizosphere soil from 3.33 to 3.67 (log cfu/g root) in control within $10{\sim}60$days after treatment of pathogen F. solani, but it's numbers were markedly decreased in 270 days cultivation of plant from 3.33 to 1.02 (log cfu/g root) after treatment. In treatment of beneficial strains of P. cepacia and B. cereus, P. cepacia significantly suppressed the development of root rot from 4.3 in control to 1.2 in treatment, whereas B. cereus alone had no effect on the rate of disease suppression. The disease index $(1.8{\sim}2.3)$ in combination of two bacteria was reduced in plants inoculated with both P. cepacia and B. cereus comparing to the index (4.3) of control. As an effect of inoculation with mycorrhiza on disease suppression, suppression of root rot by F. solani was reduced to $1.2{\sim}1.6$ in disease index in treatment of Glomus albidum and Acaulospora longular comparing to 4.3 of control. In the treatment of bacterial strain P. cepacia and mycorrhizal fungus Glomus albidum, the disease suppression was apparent to 1.2 and 1.2 comparing to 4.3 of control in disease index respectively.