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월동세대 복숭아순나방(Grapholita molesta)의 지역적 분화 및 이동
박정아,손예림,배성우,김용균,Park, Jung-A,Son, Ye-Rim,Bae, Sung-Woo,Kim, Yong-Gyun 한국응용곤충학회 2008 한국응용곤충학회지 Vol.47 No.3
성페로몬 트랩을 이용하여 사과재배지를 중심으로 복숭아순나방(Grapholita molesta) 월동집단의 발생패턴을 조사하였다. 복숭아순나방의 발생은 남부지역에서 더 일찍 시작되었지만, 발생밀도는 비슷한 지역이라도 사과원에 따라 상이하게 나타났다. 월동집단의 성충은 사과원 내부에서 모니터링한 자료와 이웃하는 사과원 사이 지점에서 포획된 밀도 변화가 서로 유사하여 이들의 사과원 사이 이동이 가능한 것으로 추정되었다. 그러나 사과원 내부에서 서로 다른 지점에서 모니터링한 자료는 바람이 불어오는 가장자리 지점이나 이웃하는 사과원과 가까이 위치한 트랩에서 높은 포획 밀도를 보여, 이들의 이동이 사과원 안에서는 둔화될 수 있다고 추정된다. 월동세대가 나타나는 비교적 초기(4월 20-25일)에 서로 다른 사과원에 발생하는 월동세대의 유전적 거리를 분석하였다. PCR-RAPD법으로 분석한 결과, 이들 집단들 사이에 유전적 분화가 있음을 나타냈다. 더욱이 동일한 지역에서 전년도 가을 집단과 초봄의 월동집단 사이에 유전적 차이가 뚜렷하게 나타나서, 이러한 월동세대 집단간 차이는 겨울 기간동안의 지역간 상이하게 나타날 수 있는 도태압에 따른 유전적 병목현상에 기인된 것으로 제시된다. Spring phonology of the oriental fruit moth, Grapholita molesta, was monitored using sex pheromone traps in apple cultivating areas. Their occurrence was earlier in southern areas and their population sizes were significantly different among orchards even in a local cultivating zone. The overwintering populations appeared to move between local orchards, based on the fact that monitoring data obtained at the sites between orchards were similar to those of nearby orchards. However, within orchards, these adult movements appeared to decrease and showed skewed occurrences at the side of upwind direction or close to neighboring orchards. At initial occurrence peak(April 20-25), the ovenvintering populations of the different localities were collected and analyzed in their genetic distances. PCR-RAPD analysis indicated that there were significant genetic differences among the overwintering populations of G. molesta. This genetic differentiation of overwinterin populations may be due to genetic bottleneck following differential selection pressures against the subpopulations of G. molesta during winter on the basis of the RAPD analysis that each early spring population was significantly different to its previous fall population in the same locality.
통합 검색 환경에서 이용자 적합성 판단 기준에 관한 탐색적 연구
박정아 한국정보관리학회 2012 정보관리학회지 Vol.29 No.2
This study is an exploratory research on the user relevance criteria in Korean search service environments that provide integrated search results. Data were collected from 10 participants using a semi-structured interview technique. The participants conducted a web search using integrated search services, such as Naver or Daum on a self-selected topic. They were asked to judge the relevance of retrieved documents and to report their relevance criteria. As a result, the research indicated 8 user-defined relevance and non-relevance criteria. The research shows that specificity and richness are the two most important criteria yet, the user’s relevance criteria have not changed much despite the change in search environment. 본 연구는 한국 통합 검색 환경에서의 이용자 적합성 판단 기준에 관한 탐색적 연구이다. 이를 위해 10명의 참가자들을 대상으로 반구조화(semi-structured) 인터뷰를 수행하여 데이터를 수집하였다. 참가자들은 네이버, 다음 등과 같은 통합 검색 환경에서 본인들이 관심 있거나 필요로 하는 다양한 검색을 수행하고, 그 과정에서 문서가 적합한지와 그 판단 기준에 대해 기술하였다. 연구 결과 8개의 적합성 판단 기준과 비적합성 판단 기준, 그리고 검색 환경이 변화하여도 이용자가 적합성을 판단하는 기준들이 크게 변화하지는 않지만 데이터 증가와 이용자 요구의 고도화로 특수성과 구체성이 중요한 적합성 판단 기준으로 부각되는 점을 발견하였다.
박정아,강인호,최병숙,정미현,장혜선,Park, Jung-A,Kang, In-Ho,Choi, Byung-Sook,Jung, Mi-Hyeon,Jang, Hye-Sun 한국주거학회 2008 한국주거학회 논문집 Vol.19 No.3
The purpose of this study was to find out tendencies in the planning characteristics focused on the community, single building, shared spaces and interior concept of apartment houses in Daejeon City, and to analyze these characteristics according to apartment unit floor plan based upon the arrangement of room, the type of main entrance, the type of LDK, anbang, kitchen, bathroom and the 3rd space. This study used the content analysis method and analysis was made on drawings and descriptions showing planning characteristics of apartment houses. Above all, 34 cases of apartment houses and 159 unit plans were analyzed. The results of this study were as follows: 1) The most important characteristics of the direction of housing development was the "well-being" concept including greenzone and natural environment. The most mentioned community spaces were children's playgrounds and parks. The emphasized interior concepts were noble, well-being and natural concepts. 2) The most prominent front arrangement type was the 3-bay unit plan, front space arrangement was focused on rooms and, livingroom. The most prominent front space arrangement types were R/L/R, R/L/R/R and there is a new tendency towards KD/L/R/R. 3) The most prominent LDK floor plans were of the LDK type. The type of "Anbang" arrangement consisted mainly of room-bathroom-dressing room. The type of public bathroom arrangement consisted mainly of bathtub-toilet-washbasin and the "Anbang" bathroom arrangement was shower-booth-toilet-washbasin.
박정아,서요셉,손희상,박철환,민준홍,이택 한국바이오칩학회 2022 BioChip Journal Vol.16 No.2
Cyanobacteria that cause algal blooms are distributed worldwide and have been reported for a long time. Further, cyanobacterial growth is increasingly spreading because of anthropogenic eutrophication; this results in increasing damages by the production of a neurotoxin called cyanotoxin. Neurotoxins have adverse effects in humans, including disrupting signal transmission between neurons and muscles in various ways resulting in paralysis and death within minutes. To detect neurotoxins, analytical techniques such as high-performance liquid chromatography (HPLC), liquid chromatography–mass spectrometry (LC–MS), and enzyme-linked immunosorbent assay (ELISA) are being implemented, but have limitations as they are difficult to measure quickly in the field and are difficult to miniaturize. Introduction of biosensors for toxin detection provides a new direction as applying bioreceptors such as aptamers, antibodies, and nanomaterials can be used to create various sensors, without the limitations of conventional detection methods. In this review, we discuss the continued development of neurotoxin biosensors that are based on electrochemistry and optics.