제 10 차 춘계학술대회 : 일반연제 : 위 ; 소화불량증을 가진 혈액투석 환자에서 피부 위전도 측정

지정훈,이태원,박영선,채희복,박선미,윤세진 대한소화관운동학회 2000 대한소화관운동학회 춘계학술대회 Vol.10 No.-

Interaction Effects of Reduced Working Hours and Flexible Working Hours on Drinking Behavior

지정훈,이상현 한국산학기술학회 2024 한국산학기술학회논문지 Vol.25 No.2

This study investigates the interaction effects of reducing working hours and the flexibility of working hours on drinking behavior. To identify the causal effects of working hours and their interaction with the flexibility of working hours, we exploit the reduction of the standard workweek from 44 to 40 hours in Korea as a quasi-experimental design. The result indicates that a reduction in working hours was not only found to have no effect on reducing drinking, but also to have the potential to increase drinking. However, we found that impact of reduced work hours on drinking behavior may vary depending on the status of workers’ flexibility of working hours. Workers with flexible working hours may decrease their drinking behavior when working fewer hours, while those without flexible working hours may increase their drinking behavior when working fewer hours.

지방간의 유병률과 비만과의 상관관계

지정훈,Ji, Jeong-Hun 한국건강관리협회 2004 한국건강관리협회지 Vol.2 No.1

Effects of Intra-peritoneal Injection of Inorganic Mercury on Blood Parameters and Hepatic Oxidative Stress Enzyme Activities in Common carp (Cyprinus carpio L.)

지정훈,강주찬 한국환경생물학회 2004 환경생물 : 환경생물학회지 Vol.22 No.4

The effects of intra-peritoneal injection of inorganic mercury on haematological parameters and hepatic oxidative stress enzyme activities were studied in common carp, Cyprinus carpio. The fish were injected thrice intra-peritoneally with mercuric chloride (1, 5, 10 mg Hg Kg b.w.-1). After exposure of three different mercury concentrations a physiological stress response was exerted on C. carpio by causing changes in the blood status such as erythropenia in blood and oxidative stress in liver. Red blood cell counts, hemoglobin concentration and hematocrit level were reduced in most cases by inorganic mercury. Remarkable low level of serum chloride, calcium and osmolality were also observed in the mercury- exposed fish. However, serum magnesium and phosphate were not altered by exposure to mercury. An increased activity of hepatic glutathione peroxidase was observed in the lowest treatment group of carp (1 mg Hg Kg b.w.-1), hence, hepatic catalase and glutathione peroxidase of carp exposed to higher concentration of mercury (5, 10 mg Hg Kg b.w.-1) showed significant reduction in such activities.

미용실 재방문과 미용 서비스 품질과의 상관관계

지정훈,최근희 한국패션뷰티학회 2005 한국패션뷰티학회지 Vol.3 No.3

This never-ending changes and everlasting challenges under the industrial circumstances induce us to compete against survival or selection. We accordingly need to take steps in order to survive excessive competitions by the various differentiated strategies in Beauty and Cosmetology markets. The purpose of this study aims for making the best use of this actual proof which enables the effective customer management and managerial things of beauty shop through theoretical contemplation in all aspects of managerial beauty shop and the reason why the customers give the second visit(revisit) or choosing the shop again(coming again) by demographic characteristics. The method of this study was surveying 200 re-visited customers at the same beauty shop in GwangJu Metropolitan city for a whole year by questionnaire regarding the correlation between revisiting of the same beauty shop and demographic characteristics. After surveying, we coded these questionnaires finding out its distribution(range) by SPSS statistical package with Frequency Analysis in response to demographic characteristics and also performed ANOVA and Regression. In brief, there is big difference between men and women which explains the second visiting(revisit) originates in technical fact; hair protection. Most women have paid great attention to their hair protection while men mostly have ignored. However, men attached themselves to the hairdressers' appearances and the distance from their house to the beauty shop which did not mean a lot to women. Beside s, there were many differentiation in accordance with marital status, age, education and their business. With this study, we easily generalize the fact that customers revisit a beauty shop not because of beauty shop facilities but because of human interests.?Beautician's service has certain specialties which show the interaction between customer and beautician in the field. Now we can come to this conclusion that we need to endeavor to develop the service spirit and employees' welfare. Their attitudes towards job satisfaction go well with customer ' s satisfaction in this way.

이기종 네트워크간 심리스 핸드오버 기술 표준화 동향

지정훈,김은아,박창민,Jee, Jung-Hoon,Kim, Eun-Ah,Park, Chang-Min 한국전자통신연구원 2007 전자통신동향분석 Vol.22 No.6

본 고에서는 이기종 네트워크 환경에서의 심리스 핸드오버 기술에 대한 기술 분석 및 관련 표준화 동향에 대하여 기술한다. 이기종 네트워크에서의 심리스 핸드오버 기술로 대표적인 IEEE 802.21 Working Group에서 표준화를 진행해온 Media Independent Handover 기술에 대한 참조 모델, 서비스, 프로토콜 및 이기종 네트워크간 핸드오버 절차를 중심으로 살펴본다. 최근 표준화 동향 파악을 위해서 2007년 10월 기준으로 IEEE 802.21 Working Group 및 IEEE 802.11u Task Group의 표준화 현황과 핵심 이슈를 정리하며, 그간 3GPP 표준과 연계한 MIH 기술 적용 현황 및 향후 추진시 고려할 사항에 대하여 기술한다. 또한, IEEE 802.21 Working Group 내 신규 그룹인 Multi-Radio Power Conservation Management Study Group과 Security Study Group의 진행상황에 대하여 살펴본다.

용도차별화 AIDS모형을 이용한 가공식품 수요 분석

지정훈,이계임,박미성,김상효,이상현 한국농촌경제연구원 2019 농촌경제 Vol.42 No.3

Although consumers take the use of foods into account when they make purchase decisions, most studies on food consumption have analyzed food demand only by food items without considering it. For accurate analysis on food purchase behavior, it is necessary to classify and analyze foods according to their uses. This study estimated processed food demand in Korea by using the UDAIDS (Usage Differentiated AIDS) model and the data of household account books. Also, it conducted a comparative analysis on the estimation results from the AIDS model and the UDAIDS model. Through the analysis, it found that a food demand analysis using the latter produces more accurate results. 소비자의 식품구매 결정에서 식품의 용도는 매우 중요한 요인임에도, 식품 수요와 관련된 대부분의 연구는 품목별 구분에 의해서만 식품 수요를 분석해왔다. 소비자의 식품구매 행태를 정확하게 분석하려면 식품을 용도에 따라 분류하고 분석할 필요가 있다. 본 연구는 UDAIDS모형과 가계부 자료를 이용하여 우리나라의 가공식품 수요를 추정하였다. 또한 본 연구의 분석 결과는 UDAIDS모형을 이용한 식품 수요 분석이 일반적인 AIDS모형보다 많은 정보를 제공할 수 있음을 제시하였다.

Effects of 4-tert-octylphenol on glutathione-related antioxidant status in olive flounder Paralichthys olivaceus

지정훈,금유화,배준성,이채원,양찬영,최상훈,강주찬,박관하 한국어병학회 2019 한국어병학회지 Vol.32 No.2

Effects on glutathione-related antioxidant parameters were examined after a chronic exposure of olive flounder, Paralichthys olivaceus to dietary 4-tert-octylphenol (4-tert-OP). Fish were fed diets containing 4-tert-OP at 0, 1, 5 and 10 mg/kg diet for 6 weeks. Antioxidant parameters examined were reduced glutathione (GSH) contents and enzyme activities of glutathione reductase (GR), glutathione S-transferase (GST) and glutathione peroxidase (GPx) in tissue homogenates of the liver, kidney and gill. It was observed that all parameters examined increased although there were some differences in dose responses and temporal patterns in the increase. GSH contents increased after exposure to 4-tert-OP in the three organs examined. However, the GSH increase was evident only after 4 weeks in the liver whereas it was elevated after 2 weeks in the kidney and gill. GR activity exhibited a significant increase in response to 4-tert-OP at 1 mg/kg in all three organs, however, its activity returned to control levels when exposed to 5 and 10 mg/kg. Hepatic GST activity showed an earlier increase at week 2 in contrast to the kidney and gill where they increased after 4 weeks of 4-tert-OP exposure. Temporal patterns in GPx activity changes to 4-tert-OP exposure were dissimilar among the organs: hepatic activity increased from week 2 through week 6; renal activity increased transiently at week 2; gill levels were higher through weeks 4-6. The results suggest that elevation of several GSH-related antioxidant parameters can be considered as evaluation criteria for 4-tert- OP-induced oxidative stress in a fish.

Predicting Vegetable Yields using Weather Forecast Accuracy: The Case of Garlic and Onion Yields

지정훈,박현주,이상현 강원대학교 농업생명과학연구원 2023 강원 농업생명환경연구 Vol.35 No.2

This study analyzed whether weather forecast accuracy indices such as precipitation accuracy and hit rate, which are potentially related to agriculture production, can be used as more effective proxies for technological progress. The results have shown that the forecasting accuracy of precipitation, in the form of the product of total rain and accuracy rate, could be used to predict the yield of seasoning vegetables by replacing the time trend variable. Using the accuracy variables as a proxy for technological development factors should be considered when forecasting onion and garlic yields. It may potentially be substituted for the time trend variable to gain greater predicting power.

호흡기 알레르기 질환 소아와 성인 환자에서 나타난 면역요법에 의한 Th2/Th1 임파구 호환성의 차이

지정훈,한윤수,김미경 대한내과학회 1999 대한내과학회 추계학술대회 Vol.57 No.-