• Neonatal Medicine
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• v.15 no.2
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• pp.151-159
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• 2008

Purpose : This study determined the prenatal and postnatal factors associated with complications and prognosis in premature infants with leukemoid reaction. Methods : We retrospectively reviewed the medical records of premature infants with gestational ages <37 weeks and low birth weights (<2,500 g) who were admitted immediately after birth to the neonatal intensive care unit at the Dongguk University Ilsan Hospital between June 2005 and July 2006. A leukemoid reaction was defined as an absolute neutrophil count (ANC) >30,000/$mm^3$. The infants who had leukemoid reaction comprised the study group, while the remainder of infants made up the control group. The relationships between maternal and neonatal variables and ANC were studied. Results : Leukemoid reaction was detected in 3.1% of the study infants (8 of 252). Factors more frequently associated with infants with leukemoid reaction were as follows: maternal chorioamnionitis, high levels of maternal and infant C-reactive protein, gestational age <37 weeks, birth weight <2,500 g, low Apgar score, prolonged ventilator support, and a high incidence of bronchopulmonary dysplasia (BPD). However, there were no significant differences with respect to the antenatal usage of steroids, the incidences of patent ductus arteriosus, necrotizing enterocolitis, intraventricular hemorrhage, retinopathy of prematurity, and mortality between the two groups. Conclusion : Leukemoid reaction in premature infants was associated with chorioamnionitis and high levels of serum C-reactive protein in mothers and infants, and BPD in infants. These findings suggest that leukemoid reaction is secondary to inflammation caused by infection.

• Journal of the Institute of Electronics Engineers of Korea SD
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• v.43 no.4 s.346
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• pp.1-7
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• 2006

AlN thin films have been fabricated by using RF magnetron sputtering method and their crystal orientations, microstructures and piezoelectric properties have been investigated with variation of the $Ar/N_2$ gas ratio and the substrate temperature. Particularly, when the $Ar/N_2$ gas ratio and the substrate temperature are 10/10 (sccm) and $400^{\circ}C$, respectively, the AlN thin film exhibits the highest (002) orientation. The result of the surface roughness measurement by using AFM shows that the surface roughness becomes better as the partial pressure of $N_2$ increases at the substrate temperature of $400^{\circ}C$ and it becomes the smallest value of 2.1 nm when $Ar/N_2$ is 0/20 (sccm). The AFM measurement also shows that when $Ar/N_2$ is 10/10 (sccm) shows that surface roughness becomes better as the substrate temperature increases from room temperature up to $300^{\circ}C$ and then it becomes worse as the substrate temperature goes up from $300^{\circ}C$. At the substrate temperature of $300^{\circ}C$ and $Ar/N_2$=10/10 (sccm), the surface roughness is 3.036 nm. The piezoelectric constant ($d_{33}$) of AlN thin film is measured by Pneumatic probe method. The measurement shows that the AlN thin film with the highest (002) orientation, fabricated at $Ar/N_2$=10/10 (sccm) and the substrate temperature of $400^{\circ}C$, has the best Piezoelectric constant ($d_{33}$) of 6.01 pC/N.

• Pediatric Infection and Vaccine
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• v.12 no.1
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• pp.61-66
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• 2005

Purpose : Since hepatitis A virus almost is transmitted by fecal-to-oral route, individual and public sanitation affects the prevalence and ages of hepatitis A infection. We researched the positivity rate of hepatitis A antibody at Pohang to make the basic data for subclinical infection and vaccination schedule. Methods : From January 2004 to February 2005, a total of 603 patients who were admitted at Hangdong University Sunlin Hospital, Dongguk University Hospital, and Christianity Hospital without any hepatic disease and vaccination of hepatitis A were enrolled. IgG antibody to hepatitis A virus were measured by electrochemiluminescence immunoassay(ECLIA). Results : Among 603 patients, 523 patients were less than 15 year of age and 80 patients were in above 15 years. The prevalence rate was 19.3%(101/523) in pediatric group and 70.0%(56/80) in above 15 years. In detail, the prevalence rate was 73.2%(52/71) in 0~5 months, 14.9%(11/74) in 6~11 month, 8.9%(7/79) in 12~17 month, 7.3%(6/82) in 18~23 month, 5.5%(4/72) in 2~3 years, 12.1%(9/74) in 4~8 years, 16.9%(12/71) in 9~14 years, 52.5%(19/40) in 15~29 years, and 92.5%(37/40) in group aged over 30 years. The prevalence rates in male and female showed no significant differences. Conclusion : The prevalence rate of hepatitis A in the group of 4~8 years and 9~14 years at Pohang was lower comparing with previous reports of other cities in Korea. We can postulate that the sanitation of children living at Pohang is at least not bad than other cities. And for the prevalence rate of hepatitis A is increased after 3 years, we should recommend that the vaccination of hepatitis A may be finished until 3 years.

• Pediatric Infection and Vaccine
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• v.24 no.1
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• pp.16-22
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• 2017

Purpose: We suspect there is a difference in the clinical manifestations and treatment response to antiviral drugs for influenza A and B. This study was conducted to investigate this difference. Methods: We collected information on pediatric patients, infected with the influenza virus, admitted to Dongguk University Ilsan Hospital from October 2013 to May 2015. We investigated the clinical manifestations of influenza and differences in treatment response to oseltamivir treatment for the two types of influenza. Results: A total of 138 patients were included. The mean age was $3.5{\pm}4.0$ years. When comparing the diseases associated with influenza A and B, croup (19.2% vs. 1.7%, P=0.001) was more common with influenza A infection. Myositis (0% vs. 6.7%, P=0.021) and gastroenteritis (29.5% vs. 46.7%, P=0.038) were more common with influenza B infection. When comparing the total fever duration from the start of oseltamivir administration, patients treated with oseltamivir within 2 days of fever had the shortest duration. Among the patients treated with oseltamivir, the duration of fever, after the start of oseltamivir treatment, for was shorter for influenza A infection than for influenza B infection ($16.0{\pm}19.1$ hours vs. $28.9{\pm}27.9$ hours, P=0.006). Conclusions: There appear to be differences in the accompanying diseases and antiviral medication responses between the two types of influenza. It is important to administer oseltamivir within 2 days of fever.

• Applied Biological Chemistry
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• v.47 no.3
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• pp.344-350
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• 2004

This study was conducted to develop and assess the applicability of mixed-bed ion exchange resin capsules for water quality monitoring in small agricultural watershed. Recoveries of resin capsules for inorganic N and P ranged from 96 to 102%. The net activation energies and pseudo-thermodynamic parameters, such as ${\Delta}G^{o\ddag},\;{\Delta}H^{o\ddag},\;and\;{\Delta}S^{o\ddag}$ for ion adsorption by resin capsules, exhibited relatively low values, indicating the process might be governed by chemical reactions such as diffusion. However, those values increased with temperature coinciding with the theory. The reaction reached pseudo-equilibrium within 24 hours for $NH_4-N\;and\;NO_3-N$, and only 8 hours for $PO_4-P$, respectively. The selectivity of resin capsules were in the order of $NO_3\;^-\;>\;NH_4\;^+\;>\;PO_4\;^{3-}$, coinciding with that of encapsulated Amberlite IRN-150 resin. At the initial state of equilibrium, the resin adsorption quantity was linearly proportional to the mass of ions in the streams, but the rate of movement leveled off, following Langmuir-type sorption isotherm. The overall results demonstrated that the resin capsule system was suitable for water quality monitoring in small agricultural watershed, judging from the reaction mechanism(s) of the resin capsule and the significance of model in field calibration.

• Neonatal Medicine
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• v.16 no.2
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• pp.205-212
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• 2009

Purpose: The purpose of this study was to evaluate the differences according to the hospitals of antenatal care in premature infants. Methods: We retrospectively reviewed the medical records of premature infants with gestational ages <37 weeks and very low birth weights who were admitted immediately after birth to the neonatal intensive care unit (NICU) at the Dongguk University Ilsan Hospital between March 2007 and February 2009. The hospitals of antenatal care were divided into two levels (primary antenatal care hospital: hospitals with less than a level 2 NICU, secondary antenatal care hospital: hospitals with a level 3 NICU) based on the level of NICU in hospitals. In addition, total infants were divided into two groups (Immediate group: infants born within 24 hours of maternal admission, Delayed group: infants born after 24 hours of maternal admission). The differences between maternal and neonatal variables in each groups were studied. Results: Neonates in secondary antenatal care hospitals comprised 11.0% of the study neonates (10 of 91). We compared with two groups (primary antenatal care hospital and secondary antenatal care hospital), but there were no differences in all subjects. However, the 1 minute Apgar score ($\leq3$) was lower in the immediate group than the delayed group. Conclusion: Shorter duration of maternal admission to delivery was associated with a lower 1 minute Apgar score of neonates. These findings suggest that if maintenance of pregnancy is difficult when high-risk gravidas are transferred, clinicians must prepare for emergencies of neonates.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.9 no.2
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• pp.233-241
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• 2006

Purpose: This study was carried out to investigate the awareness of the weaning of food using questionnaires, and the relationship with the weight gain in young infants. Methods: From September 2005 to December 2005, we performed a survey on 141 guardians of young infants aged from 6 to 18 months, who visited the pediatric out-patient department at Dongguk University Medical Center. We calculated the total score for each responder from ten questions on the weaning of food and assessed the body weight percentile of each of the young infants. Results: The most commonly reported information source for weaning food was 'the friends around' by 62 respondents (44.0%); 54 (38.3%) responded that the definition of weaning food was the preparatory step before starting a solid diet. Most used a spoon (90.8%) to feed when weaning food with a thin gruel of rice (78.7%). The time for weaning of food was before breast or infant formula feeding (55.3%). Addition of cow's milk was around 12 months (77.3%). The mean score was 6.21; however this did not show a statistically significant correlation with weight gain in young infants. Conclusion: The overall awareness of weaning of food has improved; however, information from doctors has decreased. Although the relationship between the awareness of weaning of food and the growth of young infants was not statistically significant, further studies on weaning of food, with larger and controlled sample sizes may provide important information.

• Sijohaknonchong
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• v.23
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• pp.107-131
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• 2005

The purpose of this is to make sure what the scholar of the Choseon thought the object of aesthetics, and which psychological element did they use to clear the center of the aesthetics. In addition, I consider their way to recognize the human's aesthetic point of view. A literary man in Choseon regarded the five senses as an obstacle which interrupted to see the nature of all things. So they set up the spiritual condition as their aesthetic subject, with suppressing the pleasure through five senses. The goal to make one's mind calm was to cause someone's spirit to activate freely. The condition of the calmness was considered as a process of recovering the human's natural spirit, which was connected to the poetic spirit and became the aesthetic subject. Simultaneously, a literary man at that time set up the condition of the calmness as a subject of objective consciousness, and estimated the common things as a objective existence, which led to the result that all the materials of the poem and the poet could be unified. This aesthetic centra put a premium on the senses caused by contacting with all natural things, and adopted the 'Xing' as a method of expression. This 'Xing' is not a sense based upon one's experience, but a sense which is created of itself. The expression method of 'Xing' caused the reader to feel and express, encourage, and sublimate what they feel through the poem, as well as purified reader's mind.

• The Journal of the Convergence on Culture Technology
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• v.6 no.2
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• pp.99-106
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• 2020

Changam, Lee Samman(1770~1845), who created his own handwriiting to be referred to as the three great writers of the late Joseon Dynasty, invented as the original 'Haengunyusu Typeface' and developed Calligraphy spirit of DonggugJinche in Honam province. He ultimately pursued the state of tonglyeong by raising the personality of 'writing is the person's personality' and the attitude of learning the old. Through the book chang-amseogyeol, he basically polished Haeseo of Han Dynasty and Wi Dynasty and emphasized that Haengseo and Choseo are done automatically when muscle strength and bone strength are established. And since calligraphy originated from 'nature', it goes through the 'Beobcheongwijin' spirit. After doing so, expressed the state of tonglyeong of " mubeob-ibeob ", the stage of reaching. In addition, Changam showed the aesthetic that you can get the novelty by pursuing the philosophy of 'Wu' and the 'beauty of Stupid and Lacking' based on LaoTzu and ChuangTzu. This is a philosophy that follows nature's logic to reveal nature's nature. And it is an aesthetic that protects his 'True Wu' without knowing and greedy. On the other hand, Changam promoted natural and vital beauty through force in the method of using the brush. He suggested the 'Push and Hard' of the Han dynasty, pushing it with force using this power properly. In particular, the feeling of an IlunMujeog brush in 『Changam Calligraphy-The cloud stays Poem』 overflows with the vitality and bizarre and strange dynamism of the spirit and typeface as eum-yang harmonizes with each other. In addition, the beauty of Push and Hard containing polyeoghamse is misaligned, but it has achieved a natural aesthetic without invading. This work demonstrates the real look of Changam choseo. In addition, the beauty of Push and Hard containing polyeoghamse is misaligned, but it has achieved a natural aesthetic without invading. Changam proves the real look of "Haedong's best Chose Maestro".

• Journal of Sasang Constitutional Medicine
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• v.11 no.2
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• pp.361-376
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• 1999

1. Backgrounds and Purpose : Pruritus, one of the most common dermatological symptoms, was clinically examined with a view to a better understanding of its characteristics for more accurate treatment. 2. Method : For 22 months from November in 1997 to September in 1999 we selected outpatients who had consulted for itchiness more than twice in the department of Sasang Constitution of the Pundang Oriental medical hospital, Dongkook University, and 59 of those (35 males and 24 females) were confirmed of their course of treatment. From their medical records and history, we learned the general characteristics and patterns of pruritus, and the qualities and effects of its various treatments. 3. Result and Conclusion : Pruritus was more complained by men than by women and the largest age groups were 20's and 30's. For its suffering period, the duration of 1 month to less than 1 year was the greatest, and most patients had already experienced western medical care. Itchiness affected them almost day and night. In addition, many patients had abnormal bowel habits as a general symptom. According to Sasang Constitution, the Soeumin gave sleep disturbance and indigestion; the Soyangin showed a different pattern in their tongue coatings and bowel habits; the Taeumin had different tongue coatings and sweating pattern. The commonly prescribed herbal formula for pruritus was Gakhangjungisan, Yangkyuksanhwatang, Chungsimyonjatang. As for their efficiency, 61.0 % of patients improved, whereas 39.0 percent did not. Patients aged over 30 showed a more significant improvement than those of 20 years or under, and the duration of less than 1 year was more significantly improved than that of 1 year or more. Those who had no experience in western medical care or had been continuously treated showed a more significant improvement than those with intermittent treatments, and severe pruritus was more significantly improved than mild pruritus.