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재산범죄와 폭력범죄의 영향요인에 관한 실증적 연구: 사회해체이론과 생애과정이론을 중심으로
이현정,최재훈 한국도시행정학회 2019 도시 행정 학보 Vol.32 No.2
This study found the factors of theft, violent crime, and robbery which is a combination of property crime and violent crime, using social disorganization theory and life-course theory. For this purpose, the model was designed using 189 region's crime data and administrative data from 2010 to 2016. Theft was influenced by social structural factors such as poverty, ethnic heterogeneity, and population density. youth ratio was also found to affect the theft. And foreigner ratio has a significant effect on violence. In case of robbery, poverty, ethnic heterogeneity, and youth ratio are found to be significant influencing factors. On the other hand, mobility, which did not affect to the theft and violence, influenced to robbery. 본 연구는 재산범죄인 절도, 폭력범죄 그리고 재산범죄와 폭력범죄의 결합형태인 강도범죄의 영향요인을 도출하기 위해 사회해체이론과 생애과정이론을 통해 실증적으로 분석하였다. 이를 위해 국내 189개 기초자치단체를 대상으로 2010년부터 2016년까지 7년간의 범죄데이터와 행정자료를 이용하여 모형을 설계하였다. 절도는 빈곤, 민족적 이질성, 인구밀도 등 사회구조적 요인에 영향을 받는 것으로 나타났다. 청소년 비율도 절도에 영향을 미치는 것으로 확인되었다. 폭력은 외국인 비율이 유의미한 영향을 미치는 것으로 나타났다. 강도의 경우 빈곤, 민족적 이질성, 청소년 비율 등이 유의미한 영향요인인 것으로 확인되어 절도와 유사한 양상을 보이고 있다. 한편 절도와 폭력에서는 나타나지 않은 주거 불안정성이 강도에 영향을 미치는 것으로 나타났다.
가축 장내발효에 의한 국가단위 메탄 배출통계에 관한 연구
이현정,이상철 한국동물자원과학회 2003 한국축산학회지 Vol.45 No.6
This study was conducted to investigate the national methane emission from livestock cnteric fermentation. For methane emission estimation, livestock were mainly categorized to cattle, swine, poultry, sheep, goats and horse, and cattle were further sub-categorized to calves, fattening cattle, breeding cows in Hanwoo and calves, fattening cattle and lactating cows in dairy cattle. Tier 2 methane emission factors were deduced based on the characteristics of animal performances, live weight, slaughter weight, daily weight gain, and feed digestibility in each category. Tier 2 emission factors of Hanwoo range from 39 to 49 ㎏/head/year and it is similar to that of Tier 1(47㎏/head/year). Tier 2 emission factor of dairy cattle was 107㎏/head/year and it is slightly lower than that of Tier 1)118㎏/head/year). Total methane emission from livestock enteric fermentation by Tier 2 mehtod was estimated to be 126.8 tonese in 2001. The methane emissions by Hanwoo, dairy cattle, swine, goats, horses and sheep were 61.70, 47.76, 13.08, 2.25, 0.17 and 0.01 tones, respectively. By the use Tier 2 method instead of Tier 1, the accuracy and reliability of methane emission estimates from livestock cnteric fermentation in Korea is considered to be improved.
3T3-L1 Adipocyte에서 호르몬상태에 따른 Plasminogen Activator Inhibitor-1 유전자 발현의 조절
이현정,김양하,윤현숙 창원대학교 생활과학연구소 2003 생활과학연구 Vol.- No.7
PAI-1 (plasminogen activator inhibitor-1) is synthesized and secreted by fat cells of rodents and have recently been postulated to be an important link to obesity. This study was performed to identify the regulation of PAI-1 gene expression according the hormonal status in 3T3-L1 adipocytes. The 3T3-L1 preadipocytes were grown in growth medium and differentiated in the medium by adding dexamethasone, 1-methyl-3- isobutylxanthine for 2 days, and then they were grown in the growth medium for 4-5 days to accumulate fat. The 3T3-L1 adipocytes were incubated for 72 hours in serum free medium with each concentration of insulin (0.5μM), dexamethasone (1μM), and triiodothyronine (0.05μM). PAI-1 gene expression was increased 1.2-fold by 0.5 μM insulin. In the presence of 1μM dexamethasone, PAI-1 gene expression was decreased 2-fold. The level of PAI-1 mRNA was increased by insulin, dexamethasone, T3, dexamethasone plus T3, and insulin plus dexamethasone plus T3 approximately 2.6-, 3-, 2-, 2- and 1.6-fold, respectively. Taken together, our results suggest that PAI-1 gene expression is upregulated by insulin, dexamethasone and T3.
이현정,Sohyoun Shin,김상욱 한국마케팅과학회 2010 마케팅과학연구 Vol.20 No.2
Internet has grown fast and become one of the most important retail channels now. Various types of Internet retailers, hereafter etailers, have been introduced so far and as one type of Internet shopping mall, 'surrogate Internet shopping mall' has been prosperous and attracting consumers in the domestic market. Surrogate Internet shopping mall is a unique type of etailer that globally purchases well-known brand goods that are not imported in the market, completes delivery in the favor of individual buyers, and collects fees for these specific services. The consumers, who are usually interested in purchasing high-end and unique but not eligible brands, have difficulties to purchase these items overseas directly from the retailers or brands in other countries due to worries of payment failure and no address available for their usually domestic only delivery. In Korea, both numbers of surrogate Internet shopping malls and the magnitude of sales have been growing rapidly up to more than 430 active malls and 500 billion Korean won in 2008 since the population of consumers who want this agent shopping service is also expending. This etail business concept is originated from ‘surrogate-mediated purchase’ and this type of shopping agent has existed in many different forms and also in wide ranges of context level for quite a long time. As marketers face their individual buyers’ representatives instead of a direct contact with them in many occasions, the impact of surrogate shoppers on consumer’s decision making has been enormously important and many scholars have explored various range of agent’s impact on consumer’s purchase decisions in marketing and psychology field. However, not much rigorous research in the Internet commerce has been conveyed yet. Moreover, since as one of the shopping agent surrogate Internet shopping malls specifically connect overseas brands or retailers to domestic consumers, one specific character of the mall’s, image of surrogate buying country, where surrogate purchases are conducted in, may play an important role to form consumers' attitude and purchase intention toward products. Furthermore it also possibly affects various dimensions of perceived risk in consumer's information processing. However, though tremendous researches have been carried exploring the effects of diverse dimensions of country of origin, related studies in Internet context has been rarely executed. There have been some studies that prove the positive impact of country of origin on consumer’s evaluations as one of information clues in product manufacture descriptions, yet studies detecting the relationship between country image of surrogate buying origin and product evaluations rarely undertaken regarding this specific mall type. Thus, the authors have found it well-worth investigating in this specific retail channel and explored systematic relationships among focal constructs and elaborated their different paths. The authors have proven that country image of surrogate buying origin in the mall, where surrogate malls purchase products in and brings them from for buyers, not only has a positive effect on consumers' product evaluations including attitude and purchase intention but also has a negative effect on all three dimensions of perceived risk: product-related risk, shipping-related risk, and post-purchase risk. Specifically among all the perceived risk, product-related risk which is arisen from high uncertainty of product performance is most affected (β= -.30) by negative country image of surrogate buying origin, and also shipping-related risk (β= -.18) and post-purchase risk (β= -.15) get influenced in order. Its direct effects on product attitude (β= .10) and purchase intention (β= .14) are also secured. Each of perceived risk dimension is proven to have a negative effect on purchase intention through product attitude as a mediator (β= -.57: product-related risk → product attitude; β= -.24: shippi...