• 약학회지
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• 제39권1호
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• pp.10-13
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• 1995

As a continuation of the previous studies, a third group of thirty five hot aqueous extracts from natural products were screened for platelet activating factor(PAF) receptor binding antagonistic acitivities using rabbit platelet. The results demonstrate that Arctium lappa is potential source of PAF antagonist.

• 정보교육학회논문지
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• 제22권1호
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• pp.91-102
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• 2018

이 연구의 목적은 SW교육에 참가하는 학생들의 학습 지속의도에 미치는 변인을 규명하는 것이었다. 이를 위해 기술수용모형에 기반하고 IT 도입 관련 기존 연구를 참고하여 주관적 규범, 활동촉진조건, 프로그래밍 관련 자기효능감, 지각된 용이성, 지각된 유용성을 요인으로 설정하고, 이 요인과 학습 지속의도 간의 구조적 인과관계를 규명하려 하였다. 연구 대상은 SW교육에 참가하는 초등학생 총 204명 대상이며, 1달간 웹 설문조사를 실시하였다. 이 연구에서 설정한 8개의 가설 중 '주관적 규범은 지각된 용이성에 정(+)의 영향을 미칠 것이다.'와 '지각된 용이성은 학습지속의도에 정(+)의 영향을 미칠 것이다.' 라는 2개의 가설은 기각되었다. 연구 결과 특징적인 점으로는 첫째, 지각된 용이성은 학습 지속의도에 직접적인 영향을 주지 않고 지각된 유용성을 매개로 간접적으로 영향을 주는 것으로 나타났다. 둘째, 학습 지속의도를 높이기 위해서는 직접적인 설명력이 가장 큰 요인은 프로그래밍 관련 자기효능감으로 나타났다. 이 연구 결과를 토대로 초등학생 SW교육의 효율적 지원을 위해서는 SW교육의 유용성과 학생들의 프로그래밍 자기효능감을 향상시키는 것이 중요하다는 것을 알 수 있었다.

• 문화기술의 융합
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• 제6권3호
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• pp.57-65
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• 2020

본 연구는 언택트 시대에 건강과 안전을 중요시하고 있는 가운데 비대면 중심의 헬스케어 영역이 증가하고 있다. 헬스어플리케이션 이용자들의 재미요소와 몰입이 만족에 미치는 영향을 알아보기 위한 연구로 총 235명 분석대상을 통해 헬스 어플리케이션을 사용하고 있는 표본을 대상으로 연구를 진행하였다. 첫 번째 요인분석을 통하여 이용자들의 재미요소(즐거움, 흥미, 사교)와 몰입요소를 찾아내었다. 두 번째로 재미요소와 몰입이 만족(구전의도, 사용 지속)에 미치는 영향을 살펴보았다. 마지막으로 이용자의 특성에 따라 만족에 영향을 미치는가를 살펴보았다. 본 연구의 결과 성별에 따라 헬스 어플리케이션 사용자들의 재미요소와 만족에 미치는 영향이 다르게 나타나고 있었다. 남, 녀모두 즐거움에 따른 구전의도가 유의미한 결과를 나타내고 있었으며, 여성의 경우 즐거움과 심리적 보상의 요소가 사용지속에 영향을 미치는 것으로 나타나고 있었다. 이는 헬스어플리케이션을 통한 이용자들의 재미요소중 즐거움의 요소를 강화하여 지속적으로 사용지속이나 구전에 영향을 줄 수 있도록 마케팅 차원에서 이를 고려하는 것이 중요할 것으로 보여진다.

• Clinical and Experimental Pediatrics
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• 제60권4호
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• pp.118-123
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• 2017

Purpose: Tuberculosis (TB) remains a problem in the community. TB patients usually experience malnutrition, which is characterized by both decreased body weight (BW) and body fat percentage (BFP). Leptin, an important regulator of BW, also plays an important role in cellular immunity, which is integral to defense against Mycobacterium tuberculosis infection. We analyzed the effect of an anti-TB treatment regimen on the leptin level, BW, and BFP of children with TB. Methods: The design of this study was a group interrupted time series. The subjects were children with probable TB according to clinical criteria based on an Indonesian scoring system adopted from the Consensus of Expert Panel. BW; BFP; energy intake; fat and protein intake; and leptin levels before, 2 months after (intensive phase), and 6 months after (continuation phase) anti-TB treatment, were measured. About 40 children, aged 5-14 years, participated in this study. Results: The BW, BFP and leptin level increased from before treatment to after completion of the intensive phase and still showed an increased during the continuation phase: BW 18.65 kg, 19.75 kg, and 20.85 kg; BFP 18.3%, 19.5%, and 20.2%; and leptin level 1.9 mg/dL, 3.07 mg/dL, and 3.4 mg/dL, respectively (P<0.01). Conclusion: Leptin level, BW, and BFP increased throughout the course of anti-TB treatment, compared with pretreatment values. Further research is needed to compare the results with data for healthy children.

• 디지털융복합연구
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• 제19권9호
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• pp.349-360
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• 2021

본 연구의 목적은 청소년 한부모의 스트레스 상황이 학업지속에 미치는 영향에서 여가, 문화, 정보통신 영역에서의 한부모를 위한 사회적 지원이 조절효과를 나타내는 지 검증함에 목적이 있다. 이를 위해 18세 이상의 임신 중인자나 임신해 있으면서 출산 후 자녀를 양육할 계획을 가진 자, 자녀를 낳아 키우고 있는 청소년 한부모 248명을 대상으로 기술통계와 로지스틱 분석을 실시하였다. 그 결과 4명 중 1명이 수혜자로, 청소년 한부모들의 스트레스로 인한 학업 중단 경향을 여가, 문화, 정보통신비 지원이 조절하여 학업지속의 가능성을 증가시키고 있었다. 이러한 결과는 여가, 문화, 정보통신비 지원이 스트레스로 인해 학업을 중단하려는 청소년 한부모의 학업지속 가능성을 높이는 데 효과적으로 기여하고 있음을 보여준다. 따라서 청소년 한부모의 학업지속을 위해 여가와 문화, 정보통신 영역에서의 사회적 지원을 강화할 필요가 있다.

• 한국진공학회:학술대회논문집
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• 한국진공학회 2016년도 제50회 동계 정기학술대회 초록집
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• pp.151.1-151.1
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• 2016

Complex oxide heterointerfaces have been extensively explored in the past due to the novel phenomenon emerging at such interfaces that differ from their individual bulk counterparts. The integration of a ferromagnetic (FM) material with the superconducting (SC) material leading to proximity effect is one of the commonly studied phenomenon in these heterostructures. In continuation, we have stabilized the FM layer La0.7Ca0.3MnO3 (LCMO) on SC material YBa2Cu3O7-${\delta}$ (YBCO) using pulsed laser deposition technique and explored the structural, magnetic, electrical and magneto-transport properties of this heterostructure. ${\Phi}$-scan measurements confirm the epitaxial nature of LCMO/YBCO heterostructure grown on single crystalline SrTiO3 substrate. The FM transition of LCMO and SC transition of YBCO are observed in the magnetization measurements of the bilayer structure. Through electrical measurements, we understood that the proximity effect leads to lowering of the SC transition of YBCO. The role of interface in the bilayer structure is also realized through electrical transport measurements.

• 대한바이러스학회지
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• 제27권2호
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• pp.257-260
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• 1997

Adenoviruses are icosahedral virions containing double-stranded linea DNA. They are 70 nm to 90 nm in diameter and capsid is composed of 252 capsomeres. Several members of this group, including types commonly associated with respiratory disease in man, are capable of producing malignant tumors in young hamsters and a few types have been shown to be oncogenic in young rat. Previous report involving effect of caffein on transformation induced by Adenovirus type 12 [9] has been carried out. The present report represents a continuation of previous study. To obtain evidence concerning the effect of MNNG (N-methyl-N'-nitro-N-nitroguanidine) on transformation, investigation of adenovirus type 12 of this group was undertaken. For practical consideration it was desirable to investigate the effect of MNNG on the adenovirus type 12 induced transformation in L cell. Results were as following 1. Adeno virus type 12 induced transformation was enhanced in the presence of MNNG. 2. Yields of adeno type 12 virus in L cell were slightly inhibited by treatment of MNNG.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1998년도 하계학술대회 논문집 C
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• pp.890-892
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• 1998

TCSC is a FACTS device that can control the active power flow and current of transmission lines by adjusting line impedances. In this paper, we study the effect of TCSC on power transfer capability. A static model of TCSC is implemented in the continuation power-flow(CPF) Program and the power transfer capability is measured using the CPF. The site of TCSC is selected to increase power transfer capability by the sensitivity information provided from the CPF. The effect of TCSC with various control mode is tested in IEEE New England 30-bus system.

• 여성건강간호학회지
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• 제8권3호
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• pp.402-411
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• 2002

Purpose: The objective of this study was to identify the effectiveness of continued breast feeding and maternal identity between rooming-in and not rooming-in groups of mothers in post partum care. Method: The subjects were selected by convenient sampling, with 95 women in childbirth completing a questionnaire. The data were collected on the 2nd day after delivery by questionnaire, and after the 4th and 8th weeks by telephone interview. Measures used in this study included general characteristics, breast feeding related characteristics, and the maternal identity scale revised by Koh(1996). The data were analyzed with the SPSS program, and the Chi-test and t-test were used to identify the effect on breast feeding and maternal identity. Results: Continued breast feeding up to 4 weeks after deliverly was not statistically significant between rooming-in and not rooming-in group, but beyond 8 weeks of deliverly, it was significantly different in rooming-in group(p<.01). Maternal identity was significantly higher in rooming-in group than in not rooming-in group(<.01). Conclusion: Mothers preferred rooming-in system because it helped breast feeding and baby care. Rooming-in system provides self confidence in taking care of baby, knowledge about breast feeding and stimulates early phase lactation. We recommend rooming-in system in hospitals to promote breast feeding and maternal identity. Nurses are encouraged to discuss prenatal breast feeding before delivery and rooming-in care should be planned individually for continuation of breast feeding and formation of maternal identity.

• 대한간호학회지
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• 제51권1호
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• pp.119-132
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• 2021

Purpose: This study aimed to identify the effects of a direct breastfeeding program for premature infants in neonatal intensive care units (NICUs). Methods: This quasi-experimental study was conducted during August 2016 to April 2017. Sixty mothers of premature infants were assigned to the experimental (n = 31) or control groups (n = 29). The program was comprised of breastfeeding education and direct breastfeeding support. The experimental and control groups were provided with education and counseling on breastfeeding at the time of admission and discharge. In the experimental group, the mothers initiated oral feeding with direct breastfeeding and engaged in breastfeeding at least seven times during the NICU stay. The collected data were analyzed by the χ2-test and repeated measures ANOVA using an SPSS program. Results: The experimental group showed a higher direct breastfeeding practice rate (χ2 = 19.29, p < .001), breastfeeding continuation rate (χ2 = 3.76, p < .001), and self-efficacy (F = 25.37, p < .001) than the control group except for maternal attachment. Conclusion: The direct breastfeeding program in the NICU has significant effects on the practice and continuation rate of breastfeeding and breastfeeding self-efficacy. Therefore, this program can be applied in the NICU settings where direct breastfeeding is limited.