가상현실(VR) 기술이 미세먼지 위험인식에 미치는 영향

최지혜,노기영 한국소통학회 2020 한국소통학보 Vol.19 No.4

우리나라 국민의 미세먼지 위험인식 수준은 비교적 높은 것으로 알려져 있으나, 청년층의 미세먼지 위험인식은 아직 낮은 수준에 머물러있다. 이에 본 연구는 청년층의 위험인식을 높이기 위해 활용될 가능성이 있는 실감형 미디어인 가상현실의 효과를 미 세먼지 이슈 맥락에서 살펴보고자 하였다. 순더의 메인 모형을 이론적 틀로, 본 연구는 미디어 표현방식(가상현실, 360도 영상, 정지된 이미지)이 미세먼지 위험인식에 미치는 영향을 실재감의 매개효과와 이슈 관여도의 조절효과를 통해 검증하였다. 총 210명(남 학생 105명, 여학생 105명)의 대학생이 단일 요인 집단 간 실험에 참여하였으며, 실험참 가자는 세 실험집단 중 한 집단에 무작위 할당되었으나 성별분포의 쏠림을 막기 위해 성별에 따른 층화 무작위 배정을 하였다. 연구 결과, 미디어 표현방식은 실재감을 통해 미세먼지 위험인식에 영향을 미쳤다. 이때 실재감은 가상현실, 360도 영상, 정지된 이미 지 순으로 높게 나타났고, 실재감은 미세먼지 위험인식에 정적인 영향을 미쳤다. 또한, 미디어 표현방식-실재감-미세먼지 위험인식으로 이어지는 효과가 이슈 관여도에 의해 조절되었는데, 미세먼지 저관여 집단이 고관여 집단보다 미디어 표현방식의 영향을 더 받는 것으로 나타났다. 본 연구는 가상현실이 효과적인 보건교육 자료로 활용될 수 있음을 보였으며, 특히 이슈 관여도가 낮은 집단에게 더 큰 효과를 보일 수 있음을 설명 하고 있다. Recently, virtual reality (VR) has been emerged as a promosing tool to educate youth about risks involved in public health issues, With the issue of particulate matter (PM) air pollution in South Korea, this study aimed to explain how VR influences youth’s risk perception. Based on Sunder's MAIN model as a theoretical framework, this study examined the effect of media modality (VR, 360-degree video, and still image) on PM risk perception. With the purpose of exploring the mechanism underlying it, the mediating role of perceived realism and the moderating role of issue involvement were also tested. A between-subjects experiment was conducted on a sample of 210 college students (105 males and 105 females). Each participant was randomly assigned to one of threee experimental conditions. Results indicated that media modality had an effect on PM risk perception through a mediating mechanism of perceived realism. Specifically, perceived realism was high in the order of VR, 360-degree video, and still image, and higher levels of perceived realism led to higher PM risk perception. In addition, results also supported a moderated mediation model in which the effect of media modality on PM risk perception through perceived realism was moderated by issue involvement. Thus, VR can be used as an effective health education material, particulatly for the digital generation, and the effectiveness can be increased when youth’s issue involvement is low. Limitations and implications are also discussed.

개에서 골화생을 동반한 전립선 주위종의 영상의학 증례

최지혜,계서연,김성수,최희연,김현욱,윤정희 한국임상수의학회 2010 한국임상수의학회지 Vol.27 No.4

A 6-year-old intact male Doberman pinscher presented with a thin soft stool and urinary signs. On radiography, three masses were observed in the caudal abdomen. One mass was described as a large, round, mineralized mass, with an “eggshell” appearance. The second mass was located caudal to the mineralized mass, and the third mass was located between the two masses. The second and the third masses had a soft tissue density. Ultrasonography was performed to identify the features and the origins of the masses. The first mass contained a large amount of anechoic fluid and had a thin wall; it was determined to be a cyst. Strong acoustic shadowing artifact was created by the mineralized cystic wall. Caudal to the cyst, the second mass was shown to be the prostate. A hypoechoic stalk connected the prostate and the cyst, which represented the cyst as a paraprostatic cyst with mineralization. The third mass was the normal urinary bladder. The cyst was removed surgically and confirmed by histopathologic examination. This report described typical clinical findings, diagnostic imaging, and treatment of a paraprostatic cyst.

개 신장 혈관육종의 진단 영상 1례

최지혜,반현정,장재영,김현욱,김혜진,김학상,윤정희 한국임상수의학회 2007 한국임상수의학회지 Vol.24 No.1

개의 췌장염에 의한 만성 화농성 지방조직염증

최지혜,김미은,윤정희,김현욱,장재영,서지민,이민정,최을수 한국임상수의학회 2009 한국임상수의학회지 Vol.26 No.1

A Maltese was presented with a subcutaneous mass at right flank, depression and hyperthermia. Ultrasonography revealed a hypoechoic mass with hyperechoic foci, a defect of abdominal wall and peritonitis. In cytology, fat necrosis was found. This dog was diagnosed as chronic suppurative steatitis secondary to pancreatitis and pancreatic herniation through surgery and histopathologic examination. Steatitis is recurrent inflammation and necrosis of adipose tissue. Also steatitis associated with pancreatic diseases such as pancreatitis and pancreatic tumor was reported and direct fat necrosis by pancreatic enzyme was supposed as the etiology. Steatitis secondary to pancreatitis was rarely reported in dogs and there was difficulty in diagnosis and treatment. This case has a limitation that pancreatitis was not diagnosed as underlying cause to steatitis before surgery. However, a defect of abdominal wall and peritonitis were observed on ultrasonography. Good prognosis could be achieved through prompt surgery and medical treatment.

Renal Rupture by Cystadenocarcinoma in a Yorkshire Terrier

최지혜,김진경,장재영,김현욱,김준영,윤정희 한국임상수의학회 2008 한국임상수의학회지 Vol.25 No.3

A 13-year-old, spayed female, Yorkshire terrier was presented with a history of vomiting and diarrhea.Radiographic and ultrasonographic studies suggested rupture of right renal cyst. Left kidney had increased corticalechogenecity with indistinct corticomedullary junction on sonogram. Unilateral nephroureterectomy of right kidney wasperformed. Histopathologic examination of the resected renal mass confirmed a renal cystadenocarcinoma. To the best of our knowledge, it is the first case report of renal cystadenocarcinoma in a small breed dog in Korea.

Balthazar Computed Tomographic Severity Index Application for Experimental Acute Necrotizing Pancreatitis in Dogs

최지혜,최민철,윤정희 한국임상수의학회 2010 한국임상수의학회지 Vol.27 No.6

Computed tomography (CT) is considered as gold standard in evaluating pancreatitis in human, but there have been only a few studies in veterinary field. Balthazar CT severity index (CTSI) used to assess the severity of acute necrotizing pancreatitis in human could be applicable to dogs, because the severity of acute pancreatitis depends on the area of pancreatic necrosis in dogs more than in human. In this study, 25 adult, clinically healthy beagle dogs were used. CT examinations was performed in normal pancreas, positive control group and acute necrotizing pancreatitis induced by autologous bile injection. Balthazar CTSI was applied to canine acute necrotizing pancreatitis in contrastenhanced CT image and compared with the result of histopathologic examination. The Hounsfield unit (HU) of normal canine pancreas was 52.44 ± 4.58 and the density was significantly decreased in acute necrotizing pancreatitis (P < .05). In contrast-enhanced CT examination, pancreatic density was decreased significantly and this area was compatible to pancreatic necrosis. Balthazar CTSI showed positive correlation with histopathologic evaluation with a sensitivity of 100% and a specificity of 88.89%. Balthazar CTSI can be applied to evaluate the severity of acute necrotizing pancreatitis in dogs.

Land-use Regression을 이용한 대기 중 NO₂ 농도 예측

최지혜,허진아,허슬기,김효미,김신우,김홍혁,변가람,이종태 환경독성보건학회 2013 한국독성학회 심포지움 및 학술발표회 Vol.2013 No.10

단일부품 정지능력하의 부하분담시스템의 최적 신뢰성

최지혜,간가푸라므 스리단야,김경미 한국경영과학회 2023 한국경영과학회지 Vol.48 No.1

Most of previous researches in a load sharing system have focused on expressing reliability of a given system under the assumption that the number of components used in the system is pre-fixed. Only one recent research has studied the optimal number of components for maximizing system reliability under one-component-out capability, assuming that the component follows an exponential lifetime distribution and a power function explains the load-life relationship. This paper intends to generalize such a result to consider the general distribution for the component lifetime and the general functional for the load-life relationship. We derive the system reliability in terms of the number of components used in the system. A numerical example is given to illustrate the optimal number of engines to maximize reliability of the liquid rocket propulsion system. The result indicates that a large number of components each withstanding a small load is preferred to a small number of components each withstanding a large load if the component failure rate increases with time and the failure rate decreases fast with the reduction in the design load.

수도권 지역문화재단 사업부서 담당자의 직무분석 연구

최지혜,김정원 한국문화융합학회 2023 문화와 융합 Vol.45 No.9

This study is aimed to identify the duties and tasks of the project manager of regional culture foundations in the metropolitan area using the DACUM technique. Through this study, the importance, difficulty, and frequency of each task were derived and core tasks were identified. The results of this study are as follows. First, the job of the project manager consists of 11 duties and 81 tasks. Second, it was confirmed that the tasks of project managers in the regional culture foundations was performed based on the competence necessary as a local cultural expert defined in the “Regional Culture Promotion Act”. Third, it was found that it is important to have expertise in planning and on-site management to the project managers. This study is expected to contribute to providing materials that can be a basic data of the competence required for the project manager of the regional culture foundation, and to providing a framework for the efficiency of the work system.

초음파 유도 에탄올 주입법을 이용한 개의 원발성 부갑상선항진증 치료

최지혜,김진경,김현욱,김학상,윤정희 한국임상수의학회 2007 한국임상수의학회지 Vol.24 No.3