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모바일 배너 이미지 면적이 광고 선택에 미치는 영향에 대한 연구
염동현 차세대컨버전스정보서비스학회 2016 디지털예술공학멀티미디어논문지 Vol.3 No.1
모바일 사용 환경의 급격한 확장과 함께 모바일 배너 광고 시장도 커지고 있다. 하지만 대부분의 배너광고는 키워드 광고를 제외하면 대상을 특정하지 않고 무분별하게 노출되고 있으며 따라서 그 효율성역시 매우 낮다. 일반적인 배너광고에 대한 측정방법을 공식적으로 계량화하여 배너의 효과에 따른 적중률과 가중치를 활용할 수 있는 방안을 심도있게 연구해 보았다. 따라서 본 연구의 주요 목적은 배너이미지 면적에 따른 광고 효과를 실제 데이터를 이용해 시뮬레이션을 실증적으로 할 수 있는 방안을제안하여 보다 효율적인 모바일 배너 광고를 구성할 수 있는 기초 자료를 제공하는 데 있다. Along with the rapid expansion of the mobile environment, the mobile banner advertising market is also expanding. However, most of the banner ads are not indiscriminately exposed, except for keyword advertisements, so their efficiency is also very low. The purpose of this study is to provide basic data that can construct more efficient mobile banner advertisement by simulating the advertisement effect according to banner image area using actual data.
혈액 내 코티졸의 패턴 변화가 발정 암캐의 P4 변화와 배란에 미치는 영향
박종주,김현민,최미경,노진구,염동현,지주영,김동교,김동훈,박진기,류재규 韓國受精卵移植學會 2013 한국동물생명공학회지 Vol.28 No.3
It is generally accepted that chronic stress impairs female reproduction. It negatively affects ovarian function and the number of ovulated oocytes. Chronic stress lowers the number of retrieved oocytes. Ovarian follicular development is regulated by both pituitary-derived gonadotropins and intraovarian regulatory factors. The main corticosteroids are cortisol, cortisone, 11-deoxycortisol and corticosterone, cortisol being one of the most commonly used welfare and stress physiological indicator. In this study, we investigated the effect of cortisol level on progesterone patterns and ovulation in the dog. Cortisol and progesterone level of serum were analyzed by radioimmunoassay. The day of ovulation was considered as the day when serum progesterone concentration was 6.0∼8.0 ng/ml. In vivo dog oocytes were collected by flushing oviducts of mixed-breed bitches at three days after ovulation. We classified dogs as having group 1 (cortisol level, 0 ≤ or < 2 μg/dl), group 2 (corisol level, 2 ≤ or < 4 μg/dl), group 3 (cortisol level, 4 ≤ or < 6 μg/dl) and group 4 (cortisol level, 6 μg/dL ≤). The patterns of progesterone were not different in four cortisol groups. The average numbers of retrieved oocytes was not different in four cortisol groups. These results suggest that different cortisol levels on estrus dogs do not affect ovulation, number of ovulated oocytes and progesterone changes.
In vitro development of canine somatic cell nuclear transfer embryos in different culture media
김동훈,노진구,최미경,염동현,김동교,양병철,유재규,김민규,김홍태 대한수의학회 2015 Journal of Veterinary Science Vol.16 No.2
The objective of the present study was to investigate the effects of three different culture media on the development of canine somatic cell nuclear transfer (SCNT) embryos. Canine cloned embryos were cultured in modified synthetic oviductal fluid (mSOF), porcine zygote medium-3 (PZM-3), or G1/G2 sequential media. Our results showed that the G1/G2 media yielded significantly higher morula and blastocyst development in canine SCNT embryos (26.1% and 7.8%, respectively) compared to PZM-3 (8.5% and 0%) or mSOF (2.3% and 0%) media. In conclusion, this study suggests that blastocysts can be produced more efficiently using G1/G2 media to culture canine SCNT embryos.