유명 연예인 자살보도가 일반인의 자살시도에 미치는 영향

신미영,소지은,김진숙,박미미,박지원,Shin, Mi-Young,So, Ji-Eun,Kim, Jin-Sook,Park, Mi-Mi,Park, Jee-Won 한국가정간호학회 2010 가정간호학회지 Vol.17 No.2

Purpose: The study explored the influence of the suicide of two famous entertainers on the suicide attempts of the public. Method: The subjects of the descriptive study were 888 suicide attempt patients recruited from October 2007 to September 2009 in an emergency centre located in S-city. The research tools were developed at the Centre for Disease Control. Results: The frequency of suicide attempts during the 6 months and 12 months preceding and following the gas-related suicide of celebrity A were ${\chi}^2$=18.14 and ${\chi}^2$=25.97, respectively, and both were significant(both p<.001). The frequency of suicide attempts of the 6 and 12months before and after the release of report of celebrity B's hanging suicide were ${\chi}^2$=3.85 and ${\chi}^2$=3.47, respectively, and both were significant (both p<.05). Conclusion: These results showed that reports of suicide of celebrities influences suicide attempts of the public. Multiple factors that can influence suicide attempts should be further identified and researched.

GPS수신기의 다중경로 오차 제거를 위한 가중 상관기의 성능평가

신미영,장한진,서상현,박찬식,황동환,이상정,Shin, Mi-Young,Jang, Han-Jin,Suh, Sang-Hyun,Park, Chan-Sik,Hwang, Dong-Hwan,Lee, Sang-Jeong 한국항해항만학회 2007 한국항해항만학회지 Vol.31 No.5

GPS 환경에서 다중경로 신호는 의사거리 측정 정확도의 성능을 감소시키므로 GPS에 기반한 응용에서 위치 성능 감소로 나타나며, 이는 특히 고층 건물이 많은 도심환경 및 수면에 의한 반사가 많은 해양에서 문제가 된다. 다중경로 신호는 GPS 수신기 내부 상관기에서 상관 함수의 Early-Late 간 비대칭을 유발하므로, 본 논문에서는 Late 상관 값의 비대칭 정도를 보상하여 다중경로 오차를 제거하기 위한 가중 상관기 구조를 소프트웨어 GPS 수신기를 이용하여 구현하고, 그 성능을 평가하였다. 가중 상관기는 2개의 상관 암으로 이루어진 다중 상관기를 사용하여 상관함수의 비대칭 여부를 판단하고, 비대칭성을 감소시키기 위한 보정치를 생성한다. 이 구조는 다중 상관기에 비하여 연산 처리량 부하는 감소시키는 반면, 비슷한 다중경로 오차 제거 성능을 제공한다. 본 논문에서는 다중경로 신호 생성 블록을 포함한 GPS 신호 발생기와 가중 상관기 구조를 포함한 소프트웨어 GPS 수신기를 이용하여 다중경로 오차 제거 성능을 검증하였다. 실험을 통하여 가중 상관기가 일반 상관기와 협대역 상관기보다 더 나은 오차 제거 성능을 보임을 확인하였다. The effect of multipath is especially serious in urban area and sea surface where buildings and water reflect GPS signal. Multipath brings about the performance degradation on many GPS application because the presence of multipath causes the diminution of pseudorange measurement accuracy in turn position accuracy. In this paper, a multipath mitigation named weighted correlation method is implemented on software GPS receiver, in which the asymmetric correlation function is compensated by modifying the late correlation value. Asymmetry compensation is obtained as weighted sum of two correlators which have different early-late chip spaces. This structure is adopted to lessen the computation load lower keeping up performance similar to that. The performance of implemented multipath mitigation technique is evaluated using GPS signal and multipath signal generated by GPS signal generator and software GPS receiver. The test results show that the weighted correlation method gives hefter performance than the standard correlator and the narrow correlator.

두 자료들의 평균과 분산을 이용한 혼합자료의 분산 계산

신미영,조태경,Shin, Mi-Young,Cho, Tae-Kyoung 한국통계학회 2008 응용통계연구 Vol.21 No.1

공통분산을 갖는 두 모집단에서 얻은 두 독립표본 자료로부터 공통분산을 추정하거나, 한 모집단에서 얻는 두 자료의 혼합자료로부터 모분산을 추정할때 각 표본분산의 가중평균값인 합동추정량(pooled estimator)을 주로 사용한다. 본 논문에서는 동일한 모집단에서 얻은 혼합자료의 표본분산 식을 각 자료의 평균과 분산만 이용하여 구한 후 합동추정량과 비교한다. There are times when we need more sample to achieve a more accurate estimator. Since these two sets of sample have the information about the same population, it is necessary to treat both as a single combined data. In this paper we present the unpooled sample variance for the combined data when we just know a sample mean and variance for the each data set without the raw data. It is shown that the pooled variance $s^2_p$ is always greater than the exact variance $s^2_t$ when ${\bar{x}}_n\;=\;{\bar{y}}_m$. And the difference of means for two data, ${\bar{x}}_n-{\bar{y}}_m}$, is larger, the difference of $s^2_p$ and $s^2_t$ is larger.

시드 클러스터링 방법에 의한 유전자 발현 데이터 분석

신미영,Shin Myoung 대한전자공학회 2005 電子工學會論文誌-CI (Computer and Information) Vol.42 No.1

Cluster analysis of microarray data has been often used to find biologically relevant Broups of genes based on their expression levels. Since many functionally related genes tend to be co-expressed, by identifying groups of genes with similar expression profiles, the functionalities of unknown genes can be inferred from those of known genes in the same group. In this Paper we address a novel clustering approach, called seed clustering, and investigate its applicability for microarray data analysis. In the seed clustering method, seed genes are first extracted by computational analysis of their expression profiles and then clusters are generated by taking the seed genes as prototype vectors for target clusters. Since it has strong mathematical foundations, the seed clustering method produces the stable and consistent results in a systematic way. Also, our empirical results indicate that the automatically extracted seed genes are well representative of potential clusters hidden in the data, and that its performance is favorable compared to current approaches. 마이크로어레이 데이터의 클러스터 분석은 생물학적으로 연관성 있는 유전자 그룹을 찾기 위해 종종 사용되는 방법이다. 기능적으로 연관된 유전자들이 대개 유사한 발현 패턴을 나타내는 특징을 이용하여 유사한 발현 프로파일을 가진 유전자 그룹을 찾아냄으로써 알려지지 않은 유전자들의 기능을 같은 그룹에 속한 다른 유전자로부터 유추할 수 있기 때문이다. 본 논문에서는 클러스터 분석을 위해 시드 클러스터링 알고리즘을 새로이 제안하고, 이 방법을 마이크로어레이 데이터 분석에 적용해본다. 시드 클러스터링 방법은 주어진 데이터를 계산적으로 분석하여 시드 패턴을 자동 추출하고, 이러한 시드 패턴을 목적 클러스터의 프로토타입 벡터로서 간주하여 클러스터를 생성하는 방법이다. 이러한 시드 클러스터링 방법은 수학적 원리에 기초하고 있기 때문에, 매우 체계적인 방법으로 안정적이며 일관성 있는 클러스터링 결과를 생성할 수 있다. 또한, 실제 마이크로어레이 데이터 분석에 적용해본 결과 데이터에 내재된 각 클러스터를 대표하는 시드 패턴을 매우 효과적으로 자동 추출할 수 있었으며, 클러스터링 결과 또한 타 방법에 비해 다소 우월한 경향을 나타내었다.

GPS 신호기만의 특성 및 수신기에 미치는 영향 분석

신미영,조성룡,김준오,송기원,이상정,Shin, Mi-Young,Cho, Sung-Lyong,Kim, Jun-Oh,Song, Ki-Won,Lee, Sang-Jeong 한국군사과학기술학회 2010 한국군사과학기술학회지 Vol.13 No.2

The term "spoofing" refers to the transmission of counterfeit signals to provide undetectable falsification of GPS service. A spoofing can be accomplished using information from open literature which defines the signal format and the data structure. Spoofing is intended either to produce erroneous navigation solutions or saturate the processor of the victim receiver. The GPS receiver has no way to get rid of the effect of a spoofing because GPS receivers for civil service do not have an anti-spoofing scheme. This paper analyzes the spoofing characteristics, spoofing methods and environment conditions. And the spoofing effects on GPS receiver are analyzed in detail using the designed software-based spoofer and the Nordnav receiver.

대학생 토익 향상그룹과 하락그룹에 따라 나타나는 학습전략 양상 분석

신미영(Shin, MiYoung) 학습자중심교과교육학회 2013 학습자중심교과교육연구 Vol.13 No.6

본 연구의 목적은 토익점수가 향상된 대학생과 하락한 대학생들에서 나타나는 학습전략의 양상을 비교하여 탐색하는 것이다. 학습전략에 대한 설문지 조사를 실시하고 모의토익 2회 결과를 비교하여 학생들을 토익점수 향상그룹과 하락그룹으로 나누었다. 독립 t-검정을 통해, 독립변인으로 설정된 향상그룹과 하락그룹에 따라, 종속변인인 학습전략에서 나타나는 차이를 비교하였다. 그리고 문항분석을 통해 향상 그룹과 하락그룹의 전략 양상을 비교하였다. 연구 결과 토익 향상그룹과 하락그룹은 여섯 개 하위 학습전략인 기억전략, 인지 전략, 보상전략, 상위인지전략, 정의적 전략, 사회적 전략 가운데 사회적 전략을 제외 하한 모든 전략에서 유의미한 차이를 나타냈다. 또한 향상그룹은 하락그룹보다 여섯 개 하위 학습전략에서 모두 높은 점수를 보였다. The purpose of this study is to identify some aspects of learning strategies in the university students with different academic performances in the TOEIC tests. The collected data are the results of the two TOEIC tests the 166 students have taken and the questionnaires on learning strategies from them. The independent variables have two factors. One factor is the students whose TOEIC scores have risen in the second test. The other is the students whose TOEIC scores have dropped. The dependent variable is the learning strategies the students used. The essential data were analyzed by way of the independent two samples test to make a comparison of the learning strategies between the improved grades of one group and the decreased grades of the other group. The results show that the improved grades are an effect of higher learning strategies on the part of the students. All sub-categories among the six sub-categories of the learning strategy except the social strategy show that the two groups have statistically meaningful differences. This study recommends that the features of the grades rising group be referred to as elements in teaching TOEIC courses in universities and can prove to be helpful for TOEIC teachers and students who want to get higher TOEIC scores.

혈관 플라그 형성 저해단백질에 대한 아연의 기능

신미영(Shin, Mee-Young),권인숙(Kwun, In-Sook) 한국영양학회 2016 Journal of Nutrition and Health Vol.49 No.1

Purpose: Zinc, a biomineral present within and outside cells, manages various cellular mechanisms. In this study, we examined whether zinc was involved in vascular smooth muscle cell (VSMC) calcification via regulation of calcification inhibitor protein, osteopontin (OPN). Methods: Rat aorta cell line (A7r5 cells) and primary vascular smooth muscle cells (pVSMCs) from rat aorta were cultured with phosphate (1-5 mM) and zinc (0-15 μM) as appropriate, along with osteoblasts (MC3T3-E1) as control. The cells were then stained for Ca and P deposition for calcification examination as well as osteopontin expression as calcification inhibitor protein was measured. Results: Both Ca and phosphate deposition increased as the addition of phosphate increased. In the same manner, the expression of osteopontin was upregulated as the addition of phosphate increased in both cell types. When zinc was added, Ca and P deposition decreased in VSMCs, while it increased in osteoblasts. Conclusion: The results imply that zinc may prevent VSMC calcification by stimulating calcification inhibitor protein OPN synthesis in VSMCs.

북한이탈청소년의 학교적응에 관한 질적 연구 -대안학교와 일반학교 비교를 중심으로-

신미영 ( Mi Young Shin ),이병수 ( Byung Soo Kim ) 한국사회역사학회 2014 담론 201 Vol.17 No.2

본 연구는 북한이탈청소년의 학교적응을 대안학교와 일반학교 비교의 관점에서살펴보고자 하는데 목적이 있다. 이를 위해 우리나라에서 고등학교에 재학 중이거나 중퇴.졸업한 북한이탈청소년 20명을 심층 면담하여 질적 연구를 수행하였다. 학교적응에 영향을 주는 개인, 가정, 학교, 지역사회요인 4개의 범주를 근간으로 13개의 하위영역들을 중심으로 대안학교와 일반학교를 비교분석하였다. 분석결과, 개인요인으로서 긍정적 자아개념과 높은 진로결정 수준은 학교적응에긍정적 영향을 주고 있었다. 그러나 가정요인은 대부분 낮은 수준에 머무르며 학교적응에 부정적 영향을 미치고 있었다. 개인요인과 가정요인은 대안학교와 일반학교 사이에 뚜렷한 차이를 보이지 않는 반면, 학교요인과 지역사회요인은 대안학교와 일반학교 사이에 뚜렷한 차이를 보이고 있었다. 특히 북한이탈청소년에 대한교사의 이해부족으로 인한 갈등, 또래관계와 학업스트레스 및 문화적 이질감 등이 일반학교 학교적응에 부정적 영향을 미치고 있었다. 또한 지역사회에서 제공하는 다양한 학습지원과 멘토링제는 대안학교 북한이탈청소년에게서 매우 낮은 수준의 활용도를 보이고 있었다. 이러한 연구결과의 이론적·정책적 함의를 논의 하였다. This study aims to examine school adjustment of North Korean adolescent refugees in two different settings: alternative schools and regular schools. Qualitative research method was employed through the interview of twenty North Korean adolescent refugees who are enrolled in, have dropped out of, or have graduated from South Korean high schools. Factors of influence were largely divided into four-self, household, school, local community-which were, then, further split into thirteen subcategories. Results suggest that on the self level, positive self-concept and clear career vision aid one``s successful school adjustment. Within the household, parents`` low levels of academic support, interaction with teachers, participation in private education, and conversations with child harmed the adaptation process. Most parents had high academic expectations-Bachelor``s degree or higher. However, a few parents of participants in regular schools, who were aware of the high unemployment rate in Korea, held low academic expectations-high school or associate degree. In short, no large differences were spotted between alternative schools and regular schools in terms of the self and the household. School and community factors, on the other hand, were impacting alternative schools and regular schools vastly differently. At regular schools, conflicts with teachers, peer relationships, academic stress, and cultural differences were negatively influencing North Korean adolescent refugees. Moreover, North Korean adolescent refugees in alternative schools were not actively taking advantage of various educational support programs and mentoring services offered by the local community. Such outcomes will enable the development of government policies based on various school types.

PTC 서미스터의 전기화학적 특성을 이용한 전기안전 제어장치 개발에 관한 연구

신미영(Shin, Mi-Young),이승호(Lee, Seung-Ho),정도영(Jung, Do-Young),곽동걸(Kwark, Dong-Kurl) 한국화재소방학회 2006 한국화재소방학회 학술대회 논문집 Vol.2006 No.춘계

발전된 과학 공간으로의 이동을 통한 연구자 되기: 바이러스 학자 이호왕의 사례를 중심으로

신미영 ( Shin Miyoung ) 한국과학사학회 2018 한국과학사학회지 Vol.40 No.1

This paper examines the learning process of a Korean virologist Ho Wang Lee. He is a medical scientist, who discovered the Hantaan virus, known to cause epidemic hemorrhagic fever, for the first time in the world. He achieved international research results amid poor research conditions in Korea. How did he manage to achieve this? To answer this question, this paper will present his learning experience as a budding medical researcher. During the course of his studies, he experienced several shifts in learning space, which had had some influence on his research activities. First, he was able to absorb advanced research skills by studying abroad. He studied at the College of Medicine, Seoul National University, where he was responsible for making sterile culture medium. He then went on to the University of Minnesota, where he was exposed to a new field of virology. Second, Lee was able to construct a network of international researchers through his movement abroad. Scherer, who was his academic advisor at the University of Minnesota, continued to stay in touch with Lee after he graduated, helping him with various aspects of his research activities back home. Third, he had an opportunity to explore cutting-edge research topics with colleagues in developed countries. Lee's contact with peers in the United States allowed him to utilize a new experimental material, the porcine kidney cell, as a culture medium of the Japanese Encephalitis virus.