• Journal of the Korean Home Economics Association
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• v.17 no.1
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• pp.45-55
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• 1979

The purpose of this study is to investigate to what extent and how the infant's Object Attachment occurs. For this purpose, 28 mothers with their infants showing or having shown this phenomenon were interviewed. They were selected by the whole scale smpling method from 310 household -wives living at a delux Apt. in Seoul. The results are summarized as follows : 1. About 27% of the infants aged between 6 months and 6 years turned out to show this phenomenon. 2. Qulits, bed clothes, pillows and blankets, which infants have been closely contacted since their babyhood, were the major source of attachment objects. In general, these objects were proved to have soft, wasm, smooth, and glassy tactile sensation. 3.This phenomenon, in average, appeared since 13 months after birth, About 50% of the whole began to show this phenomenon between 9 and 14 month after birth. 4. Half of the infants didn't show a change of attachment strength, but as for the other half, the attachment strength increased after one year of age, and decreased after three years of age, as the social period commenced. 5. Infants needed attachment objects especially when they were driven by sleep, sense of emptiness, and monotonous or boring feeling. 6. There were little difference between Object Attachment behavior and motherinfant attachment behavior except "babbling", "using her as a base for exploration". Those behaviors did not appear in Object Attachment. 7. mothers said that their children's attachment objects played the role of substitute mother, pacificater, warmer, friend , etc. And they attributed this phenomenon's appearance to lack their physical contact with, ocnstant and warm care toward, their children or bottle feeding.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.23 no.2
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• pp.180-187
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• 2020

Giant cell hepatitis with autoimmune hemolytic anemia (AHA) is a rare disease of infancy characterized by the presence of both Coombs-positive hemolytic anemia and progressive liver disease with giant cell transformation of hepatocytes. Here, we report a case involving a seven-month-old male infant who presented with AHA followed by cholestatic hepatitis. The clinical features included jaundice, pallor, and red urine. Physical examination showed generalized icterus and splenomegaly. The laboratory findings suggested warm-type AHA with cholestatic hepatitis. Liver biopsy revealed giant cell transformation of hepatocytes and moderate lobular inflammation. The patient was successfully treated with four doses of rituximab. Early relapse of hemolytic anemia and hepatitis was observed, which prompted the use of an additional salvage dose of rituximab. He is currently in clinical remission.

• Journal of Korean Society for Atmospheric Environment
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• v.8 no.1
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• pp.1-6
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• 1992

Using data measured in 1989, a study on variations of visibility and air pollution observed in Seoul, Chongju and Choopoongryong is carried out. Analysis includes on low visibility (< 10km) and smog occurring in the Metropolitan Seoul. It was observed that number of days of visibility less than 10km during 1989 was 56.7% (207 days) for Seoul, 45.7%(167 days) for Chongju and 5.8% (21 days) for Choopoongryong. Chongju is a medium size city (population : a half million) and Choopoongryong is a rural site. In the urban are as, however, the number of low visibility days was relatively large during the winter but with little seasonal variations. In each month these cities recorded more than 10 days of low visibility. The visibility reduction due to mist, fog and haze been occurred with air pollution. In particular, the reduction in a cold season related with an increase in high concentrations of $SO_x$ and aerosols. This type of low visibility occurring in Seoul is a similar type that is occurring in London, U.K. On the other hand, the visibility reduction during in a warm season is related with high concentrations of NOx and other photochemical precursors. The visibility reduction in Seoul during summer is the same type occurring in Los Angeles, U.S.A.

• Journal of environmental and Sanitary engineering
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• v.21 no.4 s.62
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• pp.61-76
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• 2006

A Line Density algorithm was developed to quantify the sea surface temperature distribution using NOAA Sea Surface Temperature(SST) data and Geographic Information Systems(GIS), In addition, a GIS based automation model was designed to extract the Line Density Indices were determined by applying K-means Cluster. SST data in terms of March to May obtained on the coastal area of the Uljin from 2001 to 2004 in spring were used to make two data sets of average sea water temperature map in terms of year as well as month. From the result it was formed that water temperature gradient in April was the strongest among the other months, In particular very strog formation of oceanic front as well as temperature gradients were observed in front of the coastal area around Wonduk and Jukbyeon countries. Because those coastal area is a confront zone of two cold and a warm. It is expected that the development of a Line Density Algorithm would contribute to quantify of the SST for the research of Sea Surface Front(SSF) related to marine life management and the sea environmental conservation.

• Journal of Korean Academy of Nursing Administration
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• v.3 no.1
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• pp.83-92
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• 1997

This study was designed to evaluate the current orientation and further to develop an effective orientation curriculum of new nurses by analyzing questionraire taken from 45 numbers of all nurses who have worked for 18 months below at one hospital located in C city on July, 1995. The results obtained are summarized as follows. 1. The subjects showed the high necessity of "emergency nursing", "cardiopulmunary resuscitation", "disinfection and infection" and "interpersonal relationship" in order, but relatively low necessity of "doctor supports" and "medical insurance affair" for the practical orientation. Therefore, the orientation should provide prepondently an education Which they really need, on the basis of their education experiences and/or requirements. 2. Practical training, individual teaching and performance will be an effective orientation more than theorical education. The educator should be selected from unit based persons being capable of providing technical education to trainee. Also, in order to develop the teaching method and to improve the corresponding ability, a special program is required for educators. 3. It will be desirable that task training is given at least one month before working at their unit. In addition, orientation schedule should be made to concentrate trainee on their task training fully. 4. The subjects showed that half of them had spent four to six months for work adaptation. A meeting of new nurses may be helpful not only to acclimate themselves to new circumstances. but also to provide an exchange of views and an emotional relationship. Furthermore, unit based staffs should exerts efforts to maintain the educational circumstances and warm concern for new nurse's adaptation.

• Journal of Families and Better Life
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• v.30 no.3
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• pp.165-177
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• 2012

This study examined the effect of social support on infant mother's parenting behavior and mediating effects of parenting stress and depression between social support and maternal parenting behavior. Participants were 2078 mothers of infant (4-10 month) in Korea. Data were analyzed by Structural Equation Model. Major findings were as follows: First, social support showed direct effect on maternal parenting behavior. That was the more mother receive social support, mother show responsive and warmer parenting behavior on infant. Second, maternal parenting stress mediated the effect of social support on maternal parenting behavior. That was the more mother receive social support, the less mother experience parenting stress, which in turn contribute to responsive and warm parenting behavior. Third, Maternal depression didn't mediate the effect of social support on maternal parenting behavior. However, social support and maternal parenting stress showed direct effects on maternal depression. This research suggest the needs for development of diverse social support policies and program to help mothers reduce maternal parenting stress and depression.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.25 no.6
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• pp.495-500
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• 1992

The relationship between distribution of eggs and larvae of anchovy, Engraulis japonica, and environmental factors were studied using the data on the ichthyoplankton and zooplankton sampled vertically by net, and water temperature and salinity observed by CTB in the eastern waters of Korea in every two month in 1985. Anchovy eggs and larvae were occurred in June and August. They distributed in the warm water current which was high temperature and salinity in June. Egg and larval distribution area were moved to the offshore in August. It is likely that distribution of anchovy eggs and larval in June significantly correlate with hydroconditions in the eastern waters of Korea.

• Korean Journal of Child Studies
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• v.12 no.2
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• pp.173-191
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• 1991

The purpose of the present study was to examine the relationship between infants' crying associated with their temperament and mothers' subjective responses to their crying. The subjects were 212 mothers and their 4- to 8-month-old infants living in Seoul, Korea. RITQ and EASI were administered to mothers. Mothers' perceptions of tape recordings of infants' crying were recorded. The data were analyzed by t-test and ${\chi}^2$ test. The main results were that (1) infant's temperament could be divided into five groups: the easy, the intermediate-low, the intermediate-high, the difficult, and the slow-to-warm up infant groups. The more negatively emotional and impulsive the mother's temperament, the more difficult was the infant's temperament. (2)The crying of the difficult infants was perceived more as an indication of major physical discomfort than that of the easy infants. (3)Both mothers of difficult and mothers of easy infants displayed differences in maternal interventions by type of infant cries: cries of difficult infants elicited more maternal intervention of "soothing" or "picking up" than those of easy infants. On the other hand, cries of easy infants elicited more maternal intervention of "playing with toy" and "leaving him alone, if possible" than those of difficult infants.

• Journal of Radiation Industry
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• v.4 no.1
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• pp.47-51
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• 2010

Centipedegrass is a warm season turfgrass in the world. Chlorogenic acid (CA) is one of the important compounds present in the leaf of centipedegrass and already known as an antioxidant, CA has become a key resistance against insect pests and bacteria pathogens of agricultural and horticultural plants during seedling stage. Furthermore, CA is accumulated by abiotic stress such as an UV irradiation. In present study, we investigated enhancement of the level of CA upon gamma irradiation in centipedegrass. The high performance liquid chromatography (HPLC) data analysis showed an approximately increasing of the CA levels from among the irradiated samples. However, plants irradiated at 50 Gy showed a constant increase in the CA level (0.0066 to $0.114mg\;ml^{-1}$ and 0.0258 to $0.2211mg\;ml^{-1}$, respectively) from $3^{rd}$ to $15^{th}$ day among one and three month irradiated plants compared to control. The present study, indicates an increase in the CA level upon gamma irradiation, suggests strategy for conferment of strong resistance in seedling stage plants by gamma irradiation as simplicity and cheaply method.

• Korean Journal of Environment and Ecology
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• v.35 no.6
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• pp.621-631
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• 2021

The purpose of this study is to survey and analyze acorn production and characteristics of the Quercus acuta Thunb. according to the need for information on seed supply and seedling cultivation during the restoration of warm broad-leaved forests. For the survey, a total of 30 seed traps with a surface area of 1 m² were set up, 3 in each of 10 quadrats (8 in Wando, 1 in Haenam, and 1 in Jindo). The acorns that fell in the seed trap at the end of each month were collected from August to December each year between 2013 to 2016. The collected acorns were then classified into sound, damaged, decayed, or empty grade, and the number of acorns produced was calculated. In the case of sound acorns, acorn traits, such as length, diameter and weight of acorns without cupule, were measured. Duncan's multiple tests of acorn production and characteristics were conducted for comparative analysis of the annual average values with the values by year, stand, month, and treatment plot. The annual number of acorn dropped into the seed traps in each quadrat from 2013 to 2016 was 5-350 acorns/3 m² in 2013, 17-551 acorns/3 m² in 2014, 5-454 acorns/3 m² in 2015, and 14-705 acorns/3 m² in 2016. There was a large difference in acorn production between the quadrats, presumably attributed to the difference in the amount of light received due to the density of trees in the square. Annual acorn production per area was 335,000 acorns/ha in 2013, 932,000 acorns/ha in 2014, 556,000 acorns/ha in 2015, and 1,037,000 acorns/ha in 2016. That was a sharp variation of acorn production in the two-year cycle. As the fluctuation in the production of Q. acuta showed simultaneity between stands, it is judged that Quercus acuta Thunb. had a clear cycle of fruitfulness and fruitiness between forest objects. September showed the biggest amount of fallen acorns and largest damage from insect pests, indicating that preventing early fall of acorns could increase the fruiting period and enable mass production of sound acorns. There was no significant difference between annual average acorn length in each region. In the case of the acorn diameter and weight, the average values of acorns from Haenam were significantly higher than those from Wando and Jindo. There was no significant difference in the average annual acorn characteristics by month, and the average annual acorn length, diameter, and weight in November were 19.72mm, 12.23mm, and 1.64g, respectively, the highest between August and November.