소아촬영의 방사선 피폭과 저감화 방법

정아영 대한의사협회 2011 대한의사협회지 Vol.54 No.12

Medical imaging is an indispensible diagnostic tool in modern medicine enabling fast and accurate diagnosis. However, recent technological advances in medical equipment and increased utilization of the imaging modality have resulted in a significant increase in the exposure to ionizing radiation. The risk from radiation must be carefully considered in all examinations using ionizing radiation, especially in children. The risk of cancer in children from radiation exposure is higher than adults because pediatric patients are more radiosensitive and have more years ahead in which cancerous changes might occur. Therefore, pediatric protocols specifically designed for children must be used. However, many exams are still conducted using inappropriate adult protocols, which can result in excessive radiation. The most efficient way to reduce radiation is to avoid the examination if not justified. It has been suggested that one third to one half of pediatric CT exams are unnecessary or replaceable by other imaging modalities. If the exam is justified, then the parameters must be optimized to the imaging indication, scan area, body size, age, or weight of the patient according to the “as low as reasonably achievable”(ALARA) principle. The physician should always assess the radiation risk-benefit for each patient before ordering an examination using radiation.

아동시설의 감성적 공간구성에 관한 기초연구 : 송파 어린이 전용시설을 중심으로

정아영 한국청소년시설환경학회 2008 한국청소년시설환경학회 국제심포지엄 Vol.2008 No.1

국악공연장의 잔향시간과 울림의 특성에 관한 연구

정아영,김재수 한국문화공간건축학회 2017 한국문화공간건축학회논문집 Vol.- No.58

Korean traditional music is a unique music type that exists only in Korea in contrast to Western music. However, Pansori or Korean traditional music performances have been held in multi-purpose halls or concert halls, which are suitable for Western music. Thus, the need to have suitable concert halls for Korean traditional music has been raised. Accordingly, a number of National Centers for Korean Traditional Performing Arts have been established in provinces since 1990 at a government level. However, questions are being raised about whether these national Korean traditional music halls are suitable for Korean traditional music. In this regard, this study measured reverberation time through field tests at six Korean traditional music halls. The result was compared with the reference curve of optimum reverberation time proposed by Knudsen-Harris which analyzes the correlation between reverberation time and volume. Based on such comparison, this study determined the bass ratio (BR) characteristics to understand the reverberant characteristic in the Korean traditional music halls. The study results showed that the range of average reverberation time was 1.32-1.85sec at 125Hz, 1.11-1.46sec at 250Hz, 0.85-1.27sec at 500Hz, 0.74-1.12sec at 1kHz, 0.70-1.11sec at 2kHz, and 0.62-1.06sec at 4kHz, indicating a characteristic of shorter reverberation time at higher frequency. Furthermore, the reverberation times showed a reverberation characteristic “below that of a cinema and auditorium” at all frequency bands compared to the reference curve of optimum reverberation time proposed by Knudsen-Harris. However, explanatory power (R2) of the correlation between reverberation time and volume was 1.3–35.3%, which indicates that Korean traditional music halls maintained a constant range of reverberation time without making it longer despite an increase in volume in contrast with Western music halls. A BR was measured at 1.22–1.55, which satisfied the standard of Western music theaters. Thus, it was expected to give a highly warm and soft tone to the audience.

말초신경전도 이상이 동반된 신경세포핵내봉입체병 증례

정아영,김영호,유호성,한만훈,이종목 대한신경과학회 2022 대한신경과학회지 Vol.40 No.2

A 70-year-old female presented with progressive gait disturbance. Neurologic examination revealed sensory impairment, hyporeflexia, and sensory ataxia. Nerve conduction study demonstrated mildly decreased velocity in motor nerves. Brain magnetic resonance imaging showed high signal intensities in the corticomedullary junction on diffusion weighted imaging. Neurocognitive function test implied mild cognitive impairment. Based on eosinophilic intranuclear inclusions in pathology, neuronal intranuclear inclusion disease was confirmed. Neuronal intranuclear inclusion needs to be considered when abnormal nerve conduction studies are consistent with abnormal brain imaging findings.

박물관 건축에 있어서 베리어프리의 현황과 과제에 관한 연구

정아영,정성욱,박찬일 한국문화공간건축학회 2002 한국문화공간건축학회논문집 Vol.- No.6

In the modern society, where the living and cultural standards have improved, and the average life expectancy has been lengthened due to the medical advancement, the museum plays a major role in the cultural activities. Besides, the functions have been extended from simple concept, that is, the storage, to diffusion of the culture by public participation including educational and research activities. Furthermore, in the museum architecture, this public participation is to be extended to every visitor or the aged, the disabled and women and men, young or old. For this research, the Universal Design was chosen as a countermeasure to enhance the issue, based on the design of the environment which can meet every visitor's needs. The "survey on the status of the museum facilities in Korea and Japan", a joint research with the Japanese National University of Chiba was carried out as a guide study of the museum architecture plans, base on the concept of this design.

Effects of 0.1% Tacrolimus on Canine Skin Mast Cells and Eosinophils

정아영,배슬기,오태호 한국임상수의학회 2014 한국임상수의학회지 Vol.31 No.2

Five dogs were used to determine whether 0.1% tacrolimus ointment application for one day would inhibitIgE-mediated late-phase reactions (LPRs). It was consisted of three periods: one period without therapeuticadministration (control) and two periods of treatment with either the tacrolimus ointment or vehicle. Induction of IgEmediatedLPRs was induced by intradermal injections of 0.05 ml (0.14 mg/ml) of solution of goat anti-canine IgEpolyclonal antibodies. Each section for mast cells (MCs) and eosinophils (EPs) was stained with acidified toluidineblue, and Luna’s stain, respectively. Assessment of anti-inflammatory effect of tacrolimus ointment composed of cellcounts of MC and EP from lesions of induced LPR. In normal canine biopsies, the number of dermal MCs and EPswere 12.3 ± 1.4 cells/mm2 and 3.1 ± 1.3 cells/mm2, respectively. MC counts dramatically decreased at time dependentmanner after anti-IgE administration. However, the number of MCs on 6 hours after challenge was significantly lessdecreased in the groups treated with the tacrolimus, as compared with control and vehicle group. The number of EPson 24 hours after challenge was significantly lower in the group treated with the tacrolimus than in the control andvehicle groups. In conclusion, this study revealed that 0.1% tacrolimus ointment in dogs may exert a potent antiinflammatoryeffect on inhibition of MC degranulation and also secondary prevention of EP infiltration during LPR.

강원학생진로교육원 - 공간제안

정아영,박지훈 한국청소년시설환경학회 2013 한국청소년시설환경학회 학술대회 Vol.2013 No.1

세라믹 멤브레인의 해수담수화 전처리 적용을 위한 투과성능 평가

정아영,강준석,이정준,성수창,송지영,김한승 대한환경공학회 2016 대한환경공학회 학술발표논문집 Vol.2016 No.11

과세당국의 사전안내문이 납세자와 세무대리인의 의사결정에 미치는 영향

정아영,심태섭 한국세무사회 부설 한국조세연구소 2022 세무와 회계 연구 Vol.11 No.1

Tax authorities typically use enforcement measures such as tax audits or penalties to enhance taxpayer compliance. However, since 2010, the Korean tax authority has encouraged voluntary compliance by sending taxpayers pre-notices for their tax return filings. This study examines the impact of these pre-notices on the tax-compliance decisions of taxpayers and tax preparers in Korea. In particular, this study compares the effects of notices that emphasize the power of the government and notices that encourage voluntary tax compliance based on taxpayers’ trust in the tax authority. A 3×2 between-subjects experiment involving Korean taxpayers and tax preparers and a hypothetical tax-reporting case was performed. The first variable, the contents of the notices, was manipulated with two levels:focusing on enforced compliance by emphasizing the power of the tax authority (e.g., tax audits or penalties) vs. focusing on voluntary cooperation by encouraging taxpayers’ trust in the authority. The second variable, the color of the text in the notices, was manipulated with two levels:red font vs. blue font. Analysis of the data showed that the reported income rate increased after receiving the notices. Text color had no significant effect on tax compliance, whereas the reported income rate increased significantly when the content of the notice emphasized the power of the tax authority. These findings fail to confirm arguments that voluntary cooperation by taxpayers may improve tax compliance and imply that the emphasis on punishment in current tax authority policies plays a more important role in increasing tax compliance. Although this study does not observe voluntary taxpayer compliance through trust in the tax authority, further research on voluntary compliance is needed to reach more general conclusions for tax compliance. 우리나라 과세당국은 납세자의 조세순응을 높이기 위하여 과거에는 억압적인 세무조사, 처벌과 같은 방식을 선택했다. 그러나 2010년 이후에는 신고와 관련된 안내문을 납세자에게 보내면서 자발적 순응을 유도하고자 했다. 이러한 과세당국의 자세변화는 주로 처벌에 근거하기 보다는 납세자의 신뢰에 기반한 납세자의 협조에 의하여 조세순응을 높이려는 시도일 것이다. 이에 본 연구는 세무당국이 납세자에게 보내는 안내문에서 세무당국의 힘을 강조한 경우와 납세자의 과세당국에 대한 신뢰를 높이는 경우가 납세의사결정에 미치는 영향을 비교하고자 한다. 우선 본 연구에서는 납세자에게 보내는 안내문의 내용이 과세당국의 힘을 나타내는 처벌문구를 표현한 내용과 납세자의 자발적 협조를 강조하는 내용으로 구분하여, 이러한 안내문의 내용이 납세자의 세무신고에 미치는 영향을 파악하였다. 다음으로 안내문의 형식에 따라 납세의사결정이 영향을 받는 가를 살펴보았다. 즉 안내문의 문구를 서로 다른 색(적색 vs. 청색)으로 표시할 경우, 이러한 안내문의 형식이 납세자에게 미치는 영향을 확인하였다. 본 연구는 서울에 있는 납세자와 세무대리인 각 각 180명씩 총 360명을 대상으로 집단 간 실험을 하였다. 자료 분석 결과, 세무대리인과 납세자자 모두 안내문을 보기 전보다는 본 후에 신고소득률은 높아졌다. 특히 과세당국의 힘을 부각하는 안내문 문구가 보다 높은 조세순응을 유도하는 것으로 나타났다. 그리고 안내문의 내용에 따라 최종신고소득률은 유의적인 차이를 보였지만, 안내문 형식인 색에 따라 최종 신고소득률에는 유의적인 차이가 없는 것으로 확인되었다. 이러한 연구결과는 비록 많은 연구자와 과세당국이 납세자의 자발적 협조에 의한 조세순응의 향상을 기대하지만, 본 연구는 이러한 주장을 확인하지 못하였다. 즉 여전히 납세자에 대한 처벌을 강조하는 기존 과세당국의 정책이 조세순응을 높이는 데 더 큰 역할을 하는 것을 의미한다. 그리고 세무대리인이 납세자보다는 안내문의 내용에 민감하게 대응했으며, 특히 처벌문구에 영향을 더 받는 것으로 나타났다. 이러한 결과는 과세당국이 세무대리인을 통하여 납세자의 조세순응을 높일 수 있다는 것을 의미하기에, 과세당국은 세무대리인을 통한 조세순응의 향상방안을 계속 검토하여야 할 것이다. 또한 안내문 내용에 대한 보다 많은 연구가 이루어져서, 사회 전체적으로 바람직한 조세순응을 이끌 수 있도록 노력해야 할 것이다.

일본의 청소년정책과 청소년시설 현황

정아영 한국청소년시설환경학회 2011 한국청소년시설환경학회 국제심포지엄 Vol.2011 No.1