From August 1976 to May 1977, a series of rearing experiments of eels weighing over 5 grams were carried out utilizing indoor recirculating aquariums and the results are summarized as following: 1. The eels were instantly acclimatized in the aquarium when alive Tubifex was fed as food, resulting in the food coefficient of around 5, and the daily growth rate of $2\%$ or so (Table 2). 2. When mackerel flesh was used in combination with flour dough or commercial powdered feed, the food coefficients were 4 to 5 and daily growth rates were between 1 and $2\%$ (Tables 3 and 4). 3. The eels of 12.4-14.7g in average weight which had not shown any growth when fed processed feed, grew normally when they were fed alternately with alive Tubifex and processed feed with the results of 4.3-6.0 in food coefficient and $1.4-2.3\%$ in daily growth rate (Table 5). 4. Experimental processed feed containing North Pacific which fish meal as the main ingredient showed the food coefficient of 1.31-1. 83 as dry material and this means that there is not any significant difference between this experimental feed and the control commercial eel feed, imported front Japan which showed food coefficient of 1.34 and 1.328 (Tables 6 and 7). 5. The feed cost may be reduced by about $45\%$ (based on tile domestic prices in the spring 1977) if this experimental processed feed is used instead of imported commercial feed. 6. Uneven growth is markedly significant in eels, and those which showed retarded growth gave very poor food efficiency as well as poor growth rate until they reach the size of about 30 grams. Thereafter they recovered both the normal food coefficient and growth rate. 7. Individuals which have been showing significant retarded growth may have some inherent physiological factors but this poor growth might also be, more or less, results of some external factors which are considered necessary to be investigated.
Journal of the Korean Society for Library and Information Science
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v.44
no.4
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pp.203-230
/
2010
This study analyzed the development and growth of folksonomy by examining tags associated with 40 bestsellers on LibraryThing.com in 6-month intervals. It was found that tag values do not decrease but grow in terms of quantity and quality. Accordingly, we examined the major significances of the tags and their potential utilization as an expression of subjects. Our findings were as follows. First, the motivations for tagging can be categorized into personal information for search purposes, self-fulfillment such as sense of achievement, display of emotion and sharing of one's experience with others, or an altruistic objective that emphasizes sociality with a desire that one's actions might provide social benefits. According to our analysis, 74.12% of tags had a social motivation. Second, the total number of tags and the frequency of usage increased with time. Third, the categories that showed a high increase in tag usage were dates of publication and reading, key words, main characters, and book reviews. Tags related to subjects had the highest ratio. Fourth, among Library of Congress Subject Headings (LCSH), multiple genres, key words and main characters were assigned to books, and specific key words and other properties were added as time progressed. There was also a slight increase in the number of tags consistent with LCSH. Fifth, we found that key tags could serve as a compilation of terms that reflects the knowledge base of the corresponding era. Thus, folksonomy should be continuously monitored for its quantitative and qualitative development of the tags to make improvements on its formative disadvantages, and identify internal semantic significance, be actively utilized in conjunction with taxonomy as a flexible compilation of terms that incorporate the history of a specific era.
Development and reproduction of Dichromothrips smithi were investigated under different temperatures, Durations of the development from egg to pre-adult of D. smithi were measured under 11 temperature ranges and it was 44.0 days at 13$^{\circ}C$ and 8.7 days at 32$^{\circ}C$. Developmental zero point and total effective temperature for the development of egg and larva, prepupa, pupa and for the complete development (egg to emergence) were 9.4, 8.9, 10.5, 10.8 and 9.5$^{\circ}C$, and 46.1, 90.1, 23.9, 41.2 and 204.4 degree days, respectively. The adult longevity was 28.3 days at 15 C and 14.3 days at 30$^{\circ}C$. The highest average fecundity per female was 69.3 at 25 C. The highest intrinsic rate of natural increase (r$\_$m/) and the highest net reproduction rate (R$\_$o/) were 0.241 at 30$^{\circ}C$ and 56.56 at 25$^{\circ}C$. The optimum temperature range for the growth of D. smithi was between 25$^{\circ}C$ and 30$^{\circ}C$.
The Journal of Korean society of community based occupational therapy
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v.4
no.1
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pp.47-58
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2014
Objective : Commonly experienced as an occupational therapist to reveal the meaning of conflict, development by providing information on the quality of official development plan for therapists were willing to contribute. Method : In this study using Parse's human becoming method to collect and analyze data. Participants to understand purpose of the study's researchers and that can be spoken honestly their experience through dialogue were selected eight people as a clinical occupational therapist. Conversation period January-February 2012 was, at the time of about 30-40 minutes, Every conversation is more than three times for each participant were conducted. Result : Experience of occupational therapists, occupational therapy as a conflict of identity confusion and lack of awareness, feeling that comes from a poor working environment and social life, mental conflict, payroll issues to worry about, but concerns about the treatment of the future with hope and effort in the process was an experience. However, external, internal conflicts despite the uneasy reality academic experience for self-development and growth, and the development towards a positive future was out over it. Conclusion : Away from the internal and external conflicts therapists, occupational therapy and establish the identity of satisfaction and quality of care for the treatment to improve their physical and social environment, continuous improvement is necessary.
Development and reproduction of the rice armyworm, Pseudaletia separata Walker, were investigated under different temperatures (13, 15, 18, 20, 25, 30, and 33$^{\circ}C$ ). It took 80.6 days to grow from egg to pre-adult at 15$^{\circ}C$, and 27.3 days at 30$^{\circ}C$ (3.0 times shorter growth period compared with that at 30$^{\circ}C$ ). The range of developmental temperature of rice armywom was 15-30$^{\circ}C$. Survival rate from hatched larva to pre-adult was the highest as 70.6% at 25$^{\circ}C$. Pre-oviposition period and the adult longevity were 4.2 and 12.3 days at 15$^{\circ}C$, and 2.9 and 8.0 days at 30$^{\circ}C$, respectively. The highest average fecundity per female was 816.6 at 25$^{\circ}C$. The net reproductive rate (R$\_$o/) and intrinsic rate of natural increase (r$\_$m/) were the highest at 25$^{\circ}C$ as 913.0 and 0.175, respectively. As a result, it was considered that optimum of temperature for P. separata growth was = 25.0$^{\circ}C$.
Development and reproduction of the sycamore lace bug, Corythucha ciliata, were investigated under different temperature regimes. Duration of development from egg to pre-adult of the sycamore lace bug measured seven temperatures ranged from 54.0 days at 18$^{\circ}$C to 17.9 days at 33$^{\circ}$C. Development was not successful at 15$^{\circ}$C and 35$^{\circ}$C. Developmental zero point and total effective temperature for development of egg, nymphal, and complete development were 1 1 .O, 10.9, ll.l$^{\circ}$C and 150.3, 230.6, 376.1 degree-days, respectively. Longevities of adult females varied to temperature from 51.8 days at 18$^{\circ}$C to 17.2 days at 33$^{\circ}$C. The average fecundity per female was greater at 25$^{\circ}$C and 28$^{\circ}$C compared with at other temperatures. The intrinsic rate of natural increase (r,) and net reproduction rate (R,) were highest at 28$^{\circ}$C as 0.170 and 73.25, respectively. As a result, optimum ranges of temperature for C. ciliata growth were between 25$^{\circ}$C and 28$^{\circ}$C.
Shim, Jae Eun;Yoon, Ji Hyun;Kim, Kijoon;Paik, Hee Young
Journal of Nutrition and Health
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v.46
no.5
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pp.418-426
/
2013
This study was conducted in order to investigate the association between picky eating behaviors of preschool children and growth outcomes. In this study, picky eating behaviors were defined as containing four constructs of 'eating a small amount (ES),' 'neophoic behavior (NB),' 'refusal of specific food groups (RF),' and 'preference for specific food-preparation methods (PP).' A 7-point scale was used for the multi-item questionnaire, which consisted of 21 items (three items for ES, two items for NB, nine items for RF, and seven items for PP), in order to evaluate picky eating behaviors of children. Subjects were recruited among visitors at a medical clinic in Seoul. A total of 150 self-administered survey responses from parents of preschool children were analyzed in order to investigate the association between picky eating behaviors of preschool children and growth outcomes. Height for age (HFA) and weight for height (WFH) z-scores were used for assessment of preschool children's growth. The prevalence of ES, NB, RF, and PP was 44%, 57%, 73%, and 53%, respectively. Children with ES had lower HFA (p < 0.05) and WFH (p < 0.0001) than those without ES, while children with NB, RF, or PP had HFA and WFH were similar to their counterparts. The mean HFA z-score of children with ES was less than 0 (p < 0.05) and the mean WFH z-scores of children with ES, NB, RF, or PP were less than 0 (p < 0.05). According to the study results, related growth outcome differed depending on constructs of picky eating behaviors. In particular, picky eating of ES showed a risk of faltering height growth in preschool children. Further comprehensive studies on the reason for ES and intervention approach is warranted.
The purpose of this study was to explore change trajectories patterns of Self-Rated Health in middle aged, to identify socioeconomic factors, self-esteem, family relationship factors, and to identify relevant predictors. For this purpose, the 2,418 middle aged, who married couples were extracted from the 2nd to 12st waves of Korea Welfare Panel Survey data. The data analysis included Latent Class Growth Analysis, multiple logistic regression. The change trajectories patterns of self-rated health in middle aged were classified into four types: (1) high state-retained type(46.3%), (2) low state-retained type(19.6%), (3) reduced type(17.5%), (4) increasing type(16.6%). Despite the control of chronic diseases that are closely related to health, when the low state-retained type, which is a crisis group, was set as the reference group for the self-rated health, the economic participation, self-esteem and satisfaction of the family relationship had a more inadequate effect than the high state-retained type. Likewise, when the reduced type, which is a crisis group, was set as the reference group for the self-rated health, the economic participation, self-esteem, satisfaction of the family relationship, and family stress had a more effect than the increasing type. Based on the analysis results, this study suggest political and practical intervention to maintain the proper health, and the details are as follows.
The objective of this study was to model the kinetics of S. aureus survival on high risk foods in school foodservice operations. After inoculating S. aureus ATCC25923 onto the various high risk foods, the effects of competitive microorganism, storage temperatures($25^{\circ}C$, $35^{\circ}C$), and initial contamination levels ($1.0{\times}10^2\;CFU/g$, $1.0{\times}10^5\;CFU/g$) on the growth of S. aureus were investigated. Lag time decreased and specific growth rate increased with a storage temperature ($25^{\circ}C$<$35^{\circ}C$) and with a higher initial inoculation level ($1.0{\times}10^2\;CFU/g$<$1.0{\times}10^5\;CFU/g$). Previously it was shown that S. aureus is a weaker competitor than other organisms, but it proliferates aggressively in a noncompetitive environment. However, in our study, when S. aureus was used to inoculate japchae (glass noodles with sauteed vegetables) and meat ball, the growth of S. aureus was similar and more active with competitive organisms than that without competitive organisms. Regardless of other factors, the initial level of S. aureus was a more significant factor of the growth. High inoculation levels of S. aureus were reached at 6 log CFU/g within 3 hours. An incubation temperature of $35^{\circ}C$ and the animal protein component of menu items also were identified as significant factors influencing the growth of S. aureus. Therefore, the duration of time meals are stored before serving should be considered a critical control point. Food service providers must control time and temperature to insure the safety of cooked foods.
Journal of the Korean association of regional geographers
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v.7
no.1
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pp.67-82
/
2001
Recently, local traditions and cultural assets have been rediscovered and developed as resources in local societies of Korea and a great deal of effort has been made to develop event tourism. Based on this renewed interest, this study chose as a case the Wang In Cultural Festival in Kurim-ri, Yongam, and examined the background of the early Wang In Cultural Festival and its evolution up to the present focusing on. the festival program. In Cultural Festival first began as the Wang In Cherry Blossom Festival in 1993 with a budget of 50 million won, and has been developed into a large-scale festival with a budget of 340 million won, attracting 500,000 visitors in 2000. Together with such evolution, there has been a great change in the organization and content of the Festival program. The most important change began in the 1997 which included a religious service for Confucian scholars called 'Chunhyang Grand Festival for Dr. Wang In' as a core program. Since then, festival programs related to Dr. Wang In have greatly increased in number. A decisive change became prominent when the festival promotion system was transferred from the Kunseo Young Men's Association during the early period(1993-1996) to Youngam-gun in 1997. It is true that the Wang In Cultural Festival, which began as a purely regional festival initiated by a non-governmental organization, changed a lot in terms of its scale and program when Youngam-gun emerged as a strong leading group in 1997. However, not enough consideration has been given to institutional devices and procedures that are required for the local culture to take a firm root in the community through the festival. Therefore, in order to solve such fundamental problems, a permanent non-governmental organization is required for festival preparation. In addition, in order to promote overall progress of the community and an increase in the quality of the cultural environment of the local society through the festival, it is necessary to discover and promote recognition of cultural groups in the community.
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