• Journal of the Korean Society of Food Culture
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• v.13 no.1
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• pp.47-58
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• 1998

Although it is increasing the number of day-care centers in Korea, but the quality of food and nutrition service are not increased sufficiently. The purpose of this study was to investigate the current practices of food and nutrition service in day-care centers. Questionnaire were sent to the directors of 750 day-care centers and 253 returned the complete answers. Staffing structure revealed that only 13% of the facilities had a dietitian. And compared with centers without a dietitian, there were more centers having nutritional standards, using facilities for service, and having long-term planning of meals in centers with a dietitian. In the using of foodservice budget, the centers having dietitian consumed more money for subsidiary dishes than for the staples. All centers needed increment of supplementation for the cost of foodservice and for hiring a dietitian. To improve the quality of food and nutrition services in day-care center, foodservice practices have to be conducted by professional personnel and to confirm the standard of service and to inspect the management of food and nutritional service.

• Journal of Astronomy and Space Sciences
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• v.30 no.1
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• pp.33-41
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• 2013

Various features of the existing perturbations in the Earth's spin rotation are investigated for the recent and most reliable data by spectral analysis, filtering, and comparison with idealized model. First, theory of Earth's spin rotational perturbation is briefly re-derived in the Earth-fixed coordinate frame. By spectral windowings, different periodic components of the length of day perturbation are separated, and their characters and excitations are discussed. Different periodic components of polar motion are acquired similarly and described with further discussion of their excitations. Causes of the long time trends of both the length of day and polar motion are discussed. Three possible causes are considered for the newly discovered 490-day period component in the polar motion.

• Korean Journal of Community Nutrition
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• v.4 no.2
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• pp.219-230
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• 1999

The purpose of this study was to find out the common characteristics of eating behaviors of the long-lived elderly in order to offer the basic data for establishing dietary guidelines for a long and healthy life for the general population. The subjects were three-hundred elderly people over age 85 living in Kyungpook Sung-ju who have no problems in daily living. The general characteristics, nutrition knowledge and attitudes, meal patterns, and food preferences of the subjects were surveyed by individual intervies. The levels of the nutrition knowledge of the subjects were very low(average score ; 4.3) and the correlation coefficient between their nutrition knowledge and attitude score was also low(r=0.323, p=0.000). Most of the subjects(93%) had a regular meal pattern consuming three meals a day. The major staple food was rice mixed with other grains(75%) and the number of side dishes was mostly under four(99%). A majority(73%) had no habit of overeating and 51% of the subjects were taking snacks besides regular meals. Thirty one percent of the subjects had drinking habits and 80% of the drinking subjects had over 40 years of drinking history. The most common frequencies for intakes of various food groups were ; more than once a day(95%) for vegetables ; 2∼3 times a week(74%) for green and orange color vegetables ; 2∼3 times a week(72%) for fruits ; once a day(70%) for fish, eggs and legumes ; 2∼3 times a week(49%) for milk ; 2∼3 times a week(72%) for fruits ; once a day(70%) for fish, eggs and legumes ; 2-3 times a week(49%) for milk ; 2-3 times a week(85%) for seaweeds and 2-3 times a week(81%) for foods cooked with oil. The most preferred foods by the subjects were white rice(staple foods), soybean paste soup(soups), beef and eggs(meats and eggs), yellow croaker and hair tail(fish and shellfish), yoghurt(milk and milk products), all vegetables except carrot(vegetables), and watermelon(fruits). The popular food preparation methods included mixing with seasonings and the most preferred taste was sweet. The results showed that the eating pattern of long-lived elderly was characterized by regularity, simplicity, and no overeating.

• Journal of Chest Surgery
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• v.52 no.2
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• pp.78-84
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• 2019

Background: Pulmonary thromboembolism (PTE) is a life-threatening disease with high mortality. This study aimed to assess the outcomes of surgical embolectomy and to clarify the sustained long-term effects of surgery by comparing preoperative, postoperative, and long-term follow-up echocardiography outcomes. Of 22 survivors, 21 were followed up for a mean (median) period of $6.8{\pm}5.4years$ (4.2 years). Methods: We retrospectively reviewed 27 surgical embolectomy cases for massive or submassive acute PTE from 2003 to 2016. Immediate and long-term follow-up outcomes of surgical embolectomy were assessed on the basis of 30-day mortality, long-term mortality, postoperative complications, right ventricular systolic pressure, and tricuspid regurgitation grade. Results: The 30-day and long-term mortality rates were 14.8% (4 of 27) and 4.3% (1 of 23), respectively. Three patients had major postoperative complications, including hypoxic brain damage, acute kidney injury, and endobronchial b leeding, respectively (3.7% each). Right ventricular systolic pressure (median [range], mm Hg) decreased from 62.0 (45.5-78.5) to 31.0 (25.7-37.0, p<0.001). The tricuspid valve regurgitation grade (median [range]) decreased from 1.5 (0.63-2.00) to 0.50 (0.50-1.00, p<0.05). The improvement lasted until the last echocardiographic follow-up. Conclusion: Surgical embolectomy revealed favorable mortality and morbidity rates in patients with acute massive or submassive PTE, with sustained long-term improvements in cardiac function.

• Korean Journal of Clinical Pharmacy
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• v.2 no.1
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• pp.11-22
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• 1992

Thymic extract showed antitumor effect to sarcoma mice with higher dose$(200{\mu}g/mouse/day$ i.p., 4weeks) but not with low dose$(5{\mu}g/mouse/day$ i.p., 6 weeks). Direct cytotoxicities were exhibited against sarcoma 180, L1210 and MOLT-4 by MTT assay. The spleen weight of mice were increased but the number of circulating lymphocytes were not increased after long-term(2 weeks) administration of thymic extract. Evaluating the mitogenesis by MTT assay. $\%$ absorbance of human lymphocytes was not increased by thymic extract. Cell cycle statistics of S phase and $G_2/M$ phase was not increased in the presence of that by PI staining. The formation of rosette was induced, irrespectively of exposure time short-term(l hour) and long-term(2 weeks). The population of mouse blood T-cell to bind Lyt2-antimonoclonal antibody and to $L_2T_4$ were increased after administration of thymic extract$(2-200{\mu}g/mouse/day)$. From the above results, it is suggested that thymic extract exerts antitumor activity by stimulating T cells to differeniate in vivo but not in vitro.

• Journal of Environmental Science International
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• v.13 no.3
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• pp.189-196
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• 2004

Characteristics of urban wanning phenomenon were studied using degree days for three big cities(Seoul, Busan, Daegu) adjacent to airport. Time variation of the cooling and heating degree days was analyzed using the daily mean air temperature data measured at the six meteorological observatory for long-term periods(25～43years). The results for the big cities are as followings: 1) It was found that the heating degree days trended to decrease from year to year. 2) The cooling degree days were nearly unchanged during the same analysis periods. 3) The number of days calling for air-heating also tended to decrease as time passes. 4) Those of air-cooling were nearly unchanged during the same time. It suggests that the change of air-heating condition owing to urbanization came in evidence in the winter season, but that of air-cooling condition was slight in the summer season. On the other hand, the long-term trends of degree days were very small in airport areas except for Kimhae airport. Hence, the gaps of degree days between big cities and rural airport areas are increasing.

• Asian-Australasian Journal of Animal Sciences
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• v.8 no.1
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• pp.83-88
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• 1995

An experiment was conducted to study the comparative performance of cattle fed young or mature guinea grass (Panicum maximum Jacq. ecotype A) and urea supplemented rice straw. Evaluation was based on intake and digestibility parameters. Twelve crossbred bulls calves weighing $90{\pm}15$ kg were offered young (4 weeks regrowth) or mature (9 weeks regrowth) grass in the long or chopped (10-15 cm) form, and rice straw supplemented with urea. The diets were offered 30-60% in excess of voluntary intake, and the experiment consisted of two periods. The crude protein content of the young grass, mature grass and the straw offered were 12.2, 5.4 and 7.7%, respectively, and the refusal was 10.1, 3.9 and 7.0%, respectively. The organic matter digestibility of the young grass (69%) was significantly higher than the mature grass (62.5%) and straw (55.8%) diets. The organic matter intake (kg/100 kg LW/day) of the unchopped and chopped grass diets were 2.6 and 3.3 respectively, and these values were significantly higher (p < 0.01) than the young grass (2.3) and straw (2.1) diets. The digestible organic matter intake (DOMI) of the mature grass diet offered in the chopped form (2.1 kg/100 kg LW/day) was significantly higher (p < 0.01) than the other three diets. The DOMI of the young and mature grass offered in the long form was similar (1.6 kg/100 kg LW/day), but were significantly better (p < 0.01) than the urea supplemented straw diet.

• Journal of the korean society of oceanography
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• v.34 no.4
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• pp.214-219
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• 1999

Cells of the dinoflagellate Gyrodinium impudicum form characteristic chains, which are associated with sugar accumulated on the cell surface. To resolve the relationship between chain-formation and cell surface sugar accumulation, confocal microscopy was used to observe sugar accumulation points in the vegetative cells and long chain-forming cells of G. impudicum cells treated with fluorescent-tagged ConA. In the stationary and exponential phases, both vegetative cells and chain-forming cells were similar to each other in fluorescent intensity. There was no evidence that chain-forming cells had a specific location for sugar accumulation on the cell surface. Most of the cells formed 2-cell chains one day after inoculation, but longer chains consisting of 4-8 cells increased markedly in 4day and 8 day cultures. Gyrodinium impudicum chains usually consist of more than four cells, and chains of 8 or even 16 cells can be observed in mature cultures. Temperature played an importantrole in chain-formation of the cells, threshold temperature for the development of long chain-formation was 19 $^{\circ}$C.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.3
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• pp.1489-1495
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• 2014

Facing aged society, long-term care insurance for senior citizen has been introduced in Korea since 2008 in order to take away care burden from family. Daycare Center is one of the institutions developed by the idea of social care. Noticing many problems around adult day services (ADS) such as low quality of services and lack of running sources, this paper would suggest the norm of day care center in terms of community cohesive facilities. In addition, to find out the future vision of ADS, interviews with 10 experts are also analyzed. The result is that new health care program would be community-friendly, tailor-made, communication-based and intergenerational one.

• Neonatal Medicine
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• v.16 no.2
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• pp.110-120
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• 2009

Mimicking fetal nutrition is the goal of early paretneral nutrition (PN) in very low birth weight infants, however the limited metabolic capacity of immature organs raises concern about the toxicity of metabolites to the developing brain. Starting parenteral amino acids from the first day of life, with a rate of 1.0 to 1.5 g/kg/day, is generally recommended to prevent endogenous protein breakdown by maintaining a positive nitrogen balance. A greater of amino acid infusion rate in the range of the fetal transfer rate (3.5-4.0 g/kg/day) is well tolerated during the early days after birth in VLBWI, however the influence on growth and long-term neurodevelopmental outcome remains unknown. Limited data are available from controlled trials regarding the effects of early supplementation with lipid emulsions on neonatal morbidity. Considering the role of long-chain polyunsaturated fatty acids in the neurodevelopment, the choice of an optimal lipid emulsion should be based on the quality as well as the quantity of the lipid contents. Little is known about the clinical benefit of higher rates of glucose infusion by permitting high serum glucose level or co-administration with insulin.