• Journal of the Korean Dietetic Association
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• v.28 no.1
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• pp.1-18
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• 2022

This study was conducted to estimate the appropriate workforce of dietitians by type of kindergarten through the recognition survey and job analysis of the kindergarten. Nutritionists' duties were classified into 6 duties, 28 tasks and 94 task elements. The statistical data analysis was completed using Statistical Package for the Social Sciences (SPSS) (ver. 25.0). The time spent on 6 duties, including 'Nutrition management' (public attached 666.24 hours/year, public independent 843.04 hours/year), 'Foodservice management Practices' (public attached 1,472.52 hours/year, public independent 1,298.11 hours/year), 'Hygiene management of kindergarten foodservice' (public attached 611.78 hours/year, public independent 607.18 hours/year), 'Nutrition-diet education and counseling' (public attached 340.53 hours/year, public independent 253.42 hours/year), 'Managing snack during semesters and lunch/snacks during breaks' (public independent 309.04 hours/year) and 'Professionalism enhancement' (public attached 88.86 hours/year; public independent 65.17 hours/year). Total working hours for dietitians were 3,179.94 hours/year (public attached) and 3,375.97 hours/year (public independent). The time/day ×5 days/week ×52 weeks/year calculation method using derived total working hours/year was applied to derive appropriate full-time equivalents (FTEs). The analysis showed that the public attached kindergarten's FTEs were 1.53. The public independent's FTEs were 1.62, and the total FTEs were 1.55. This is the first study to analyze the workload of kindergarten dietitians and appropriate manpower by kindergarten establishment type. It is expected to be a valuable policy basis for efficient operation measures related to the kindergarten dietitians.

• The Korean Journal of Nuclear Medicine
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• v.11 no.1
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• pp.39-48
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• 1977

Radioactive iodine(RAI), principally $^{131}I$, effectively controls hyperthyroidism in the majority of patients. The subsequent development of hypothyroidism, however, has been of increasing concern since it was first pointed out by Chapman and Maloof in 1955. And the steady increase of late hypothyroidism during the passage of time was known with its relation with dosage of RAI. The authors have investigated the development of hypothyroidism in 935 patients with diffuse toxic goiter(DTG) who were treated with ($RAI^{131}I$) at the Seoul National University Hospital from 1960 to 1977 to reveal its relation with the number of RAI treatments, dosage of RAI, age of patients and exophthalmos with the following results. 1) The incidence of hypothyroidism by year after RAI therapy among 631 patients with DTG who were treated with single RAI regimen was 7.4%(1 year), 11.8%(2 year), 16.2%(3 year), 22.1%(4 year) and 25.5%(5 year), and that among 163 patients given multiple RAI treatments was 8.6%(1 year), 10.4%(2 year), 13.3%(3 year), 29.1%(4 year), and 54.1%(5 year)respectively showing much higher year1y increments from 4 years after RAI treatment. in comparison with the former. 2) Among 550 patients in the lower dose group treated with single RAI regimen less than 5.0mCi ($Mean{\pm}S.D.:\;4.3{\pm}0.6mCi$), the incidence of hypothyroidism by year after RAI treatment was 6.8%(1 year), 11.4%(2 year), 15.4%(3 year), while among 81 patients in the higher dose group given single RAI treatment not less than 5.5 mCi ($Mean{\pm}S.D.:\;6.3{\pm}0.5mCi$) it was 12.0%(1 year), 15.4%(2 year) and 20.4%(3 year) respectively. However, the duration till euthyroid state after RAI therapy in the two groups was $5.1{\pm}3.6$ months and $4.8{\pm}2.8$ months respectively showing no statistically signficant difference (p>0.1). 4) The incidence of hypothyroidism after RAI treatment in patients younger than 30 years of age was 4.3%(1 year) and 7.7%(2 year); in patients from 30 years to 49 years of age, 5.8%(1 year) and 11.1%(2 year); and in those older than 50 years, 11.0%(1 year) and 14.4%(2 year). The data revealed rising incidence of hypothyroidism with increase of patients' age. 4) Among 116 patients with exophthalmos the incidence of hypothyroidism by year after RAI treatment was 7.1%(1 year) and 12.1%(2 year) while that among 184 patients without exophthalmos was 7.3%(1 year) and 12.2%(2 year) respectively. With the above data the authors could conclude that the hypothyroidism in patients with DTG who were treated by RAI developed more frequently than reported by others in Korea till now, and increased with the passage of time, the yearly increments from 4 years after RAI treatment increasing markedly in the multiple dose group, and the incidence could be reduced by decreasing the administered RAI doe not increasing the duration till euthyroid state after RAI therapy.

• Journal of Korean Society of Forest Science
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• v.111 no.3
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• pp.394-404
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• 2022

This study was conducted to optimize the amount of drip irrigation for Prunus×yedoensis Matsum., one of the major medium-sized landscaping trees used mainly for streetscapes and as ornamentals. The experiment was conducted in a container nursery, where we assessed the growth and physiological characteristics of 4- and 8-year-old seedlings watered at different rates (x) by a drip irrigation system. The relative growth rates (based on height and root collar diameter (RCD) measurements) were highest at 288 and 416 L/year/tree for the 4- and 8-year-old containerized seedlings, respectively. These age and treatment combinations also produced significantly different dry weight and seedling quality index values, indicating good growth. The two age groups had significantly different total root lengths, root diameters, and root volumes under these respective irrigation treatments. In addition, the 4-year-old containerized seedlings irrigated at 288 L/year/tree and the 8-year-old containerized seedlings irrigated at 416 L/year/tree had the highest activations in their chlorophyll contents. Overall, the results (differences in irrigation amounts affect the seedlings morphological relative growth, biomass growth, seedling quality, and physiological reaction) indicate that the optimal irrigation amounts for container-grown Prunus×yedoensis are 288 L/year/tree for 4-year-old (RCD class, 3cm) and 416 L/year/tree for 8-year-old (RCD class, 7 cm) containerized seedlings.

• Journal of Chest Surgery
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• v.27 no.12
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• pp.995-1001
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• 1994

The CarboMedics valve prosthesis is a relatively new. low profile bileaflet prosthesis. During a 6 year period from Aug. 1988 to July 1994. 158 patients had CarboMedics prostheses implanted in the mitral [n=94], aortic [n=25], or aortic and mitral [n=39] in National Medical Center. Hospital mortality was 9.4% and the main cause of death was low output syndrome. Follow up was 96% complete, with 365.4 patient-years and a mean follow up of 30 months [ range 1 to 72 months ] . The overall actuarial 6 year survival rate was 91.61 3.47% and actuarial 6year freedom from all valve related complications was 73.9 7.67%. The linearized incidence of vavle related complications was as follows: thromboembolism 1.37%/patient-year ; valve thrombosis 0.82%/ patient-year ; anticoagulant related hemorrhage 0.85%/patient-year ; perivalvular leakage 0.55%/paitent-year: prosthetic valve endocarditis 0.82%/patient-year ; reoperation 1.37%/patient-year. There were no instances of structural failure. We conclude that the Carbomedics valve has a low rate of complications that further improves the quality of life in patients with heart valve prostheses.

• Atmosphere
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• v.16 no.1
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• pp.49-53
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• 2006

The present study has examined interdecadal variations of the diurnal temperature range (DTR, daily maximum temperature minus daily minimum temperature) during the New Year season in Seoul for the period 1954-2005. Here, the average DTR for the New Year holidays (three consecutive days; one day before the New Year, the New Year day, and one day after the New Year) minus the average DTR for 14 days, 7 days before and 7 days after the New Year holidays, is defined for representing the New Year effect. The DTR index does not show notable trend until the late 1970s but shows obvious positive values afterward. For example, the difference of the average DTR between two periods (1980-2005 minus 1954-1979) is $0.65^{\circ}C$, which is meaningful at the 95% confidence level. This result demonstrates that intense human activity even for the limited period may provide climate impact in local regions. Its plausible causes are discussed.

• Research in Community and Public Health Nursing
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• v.8 no.2
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• pp.159-177
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• 1997

For the development of nursing curriculum after the completion of a basic program, this study was conducted by comparing the 4-year baccalaureate degree program with the 3-year diploma program. The results are as follows: 1. The curriculum of the 4-year baccalaureate and 3-year diploma program are similar to each other in philosophy, educational objectives, and practical experience. However, advanced nursing courses in practical experience were taught by the 4-year baccalaureate degree program only. 2. For the development of a more advanced and effective curriculum, the 3-year diploma program should concentrate on nursing core courses (80 credits) such as 'adult nursing' 'maternal nursing' 'pediatric nursing' 'psychiatric nursing' 'community health nursing' 'fundamentals of nursing' 'managerial nursing'. Furthermore, nursing related courses (20 credits) and liberal education courses (20 credits) should also be offered by the 3-year diploma program. 3. This nursing curriculum should be conducted by registered nurses who have graduated from a 3-year diploma program. The nursing educational philosophy and the educational objectives of this curriculum are the same as the 4-year program recommended by the Korean Nurses Association. This curriculum consists of 2 parts: advanced nursing courses and liberal education courses. The advanced nursing courses (20 credits) include 'nursing theory(4 credits)' 'nursing research(4 credits)' 'nursing leadership(4 credits)' 'nursing curriculum{4 credits)' and 'seminar of nursing issues(4 credits)' total is 40 credits.

• Journal of radiological science and technology
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• v.18 no.1
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• pp.81-90
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• 1995

This study was conducted to find out the management status of radioisotopes and radioactive waste products in Korean medical institutions during the period of three years from 1991 to 1993. The results are summarized as follows : 1. The rate of medical institution to the institutions making use of radioisotopes was decreased every year, for example, 18.11 % in the year 1991, 17.86 % in the year 1992 and 15.87 % in the year 1993. 2. The use of domestic made radioisotopes in the medical institution was increased every year, for instance, 89.68 % in the year 1991, 94.21 % in the year 1992 and 99.79 % in the year 1993. 3. 91.01 % of the half life of isotopes used in the medical Institution were two month below. 4. The rate of radioactive waste products in the medical institution to all radioactive waste products was increased every year, for example, 54.44 % in the year 1991, 75.36 % in 1992 and 78.49 % in the year 1993. 5. The rate of inflammable waste products from medical institution was 76.47 % of all inflammable waste products, and 73.99 % of whole waste products was from the medical Institution.

• Korean Journal of Organic Agriculture
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• v.19 no.spc
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• pp.13-16
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• 2011

The occurrence of major pest infestation was compared between conventional tea plantation and organic tea plantation at Sulloc tea garden in Dosun-dong, Seogwipo-si, Jeju-do from 2002 to 2009. Tetranychus kanzawai was observed a lot in the second year, but it waned from late June. There was not much difference between conventional farming and organic farming in terms of pest density. Empoasca onukii was infested in the second year of organic farming compared with conventional farming, which highlighted the fact that second year of organic farming requires a special care. Scirotothrips dorsalis was highly dense in the second and third year of conventional farming, but its occurrence was lowered when the farming technique was shifted to organic farming. The number of Homona magnanima peaked 4 times each year. In 2008, the first year of organic farming, saw high occurrence of 771.2 per trap per year. In 2009, the second year, the population per trap dropped to 80, showing a great variance depending on year. The occurrence of Caloptilia theivora peaked 5 times annually. In 2008, the first year of organic farming, an average of 2,779 pests per trap was found, and in the following year, 4,143 pests were observed. It showed that density rose in organic growing period.

• Journal of Environmental Science International
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• v.21 no.8
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• pp.1023-1030
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• 2012

Contents of ginsenosides 7 subordinations of two-year ginseng (fresh ginseng) is 1.27% and three-year ginseng is 2.09%, so the three-year ginseng root increased 64.9% compared to the two-year root. Compared with the comparison group, ginsenosides component content of KEM+SAF-applied group increased 24% in case of the two-year root and 20% in case of the three-year root. In vitamin C content, two-year root showed 59.4% higher and three-year root showed 37.7% higher in KEM+SAF applied group compared with the comparison group. In case of vitamin E, the two-year root indicated 5.6% higher and three-year root indicated 1.5% higher in KEM+SAF applied group compared with the comparison group, but there is no significant difference. In phytosterol three components (campesterol, stigmasterol, sitosterol), two-year root showed 25.3, 3.6, 14.1% higher for each, and three-year root showed 23.6, 6.8, 12.9% higher in KEM+SAF applied group and 14.4% was higher on average. In DPPH, two-year root indicated 34.4% higher and three-year root indicated 42.4% higher in KEM+SAF applied group compared to the comparison group. To sum up the results, KEM+SAF applied group showed (1)22% ginsenosides components content, (2)48.6% vitamin C content, (3)3.6% vitamin E content, (4)14.4% phytosterol content, (5)38.4% DPPH higher averagely compared to the comparison group.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.36 no.4
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• pp.402-408
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• 2003

A quantitative method was suggested for estimating damages in fishery production due to the diffusion and deposition of suspended silt and clay by various construction processes in tidal flat fishing grounds. Marine populations are maintained through the process of spawning, growth, recruitment, natural death and death by fishing each year. All of the year classes of the population in a fishery ground could be affected when damages occur by human activities such as land filling or reclamation. The propose of this study is to calculate damages in terms of fishery production using a quantitative population dynamic method. If the maximum age in the population is $X_\lambda,$ the starting year of damage is $t_s,$ and the ending year of damage is $t_e,$ the number of year classes damaged is $t_{s-n\lambda}-t_e,$ Many year classes present in the year $t_s,$ and so if damages occur, they Influence all the year classes which are present in the population. Damaged year classes in year $t_e$ would still be in the population until the year $t_{e+n\lambda}$, where $n_{\lambda}$ is the oldest age class. If the expected yield of a year class is constant, the total yield from year classes in the fishing ground during the construction periods can be calculated as follows: $Y_\Phi=[(t_e-t_s+1)+n_c]{\cdot}Y_E+\sum\limits^{n_\lambda-n_c}_{l=1}\;\sum\limits^{n_\lambda-n_c}_{l=i}\;Y_{n_c+i}$ This method was applied for damage estimation in the production of Ruditapes philippinarum in a tidal flat fishing ground.