• 대한화학회지
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• 제64권2호
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• pp.67-73
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• 2020

In vitro 조건 하에서 두 종류의 실리콘 하이드로 겔 렌즈인 1-day lenses(Acuvue Oasys)와 3-days lenses(Davich Trevues)의 시간 경과에 따른 지방 침착물 양과 광학적 특성 변화를 비교하였다. 인공 누액은 실제의 눈물의 조성비를 기준으로 준비하였으며, 일회용 렌즈(1-day lenses: senofilcon A)와 3일착용 렌즈(3-days lenses: silicone tripolymer)를 준비된 인공 누액에 담구어 배양기에서 37 ℃, 150 rpm의 속도로 흔들어 주면서 8 h, 16 h, 24 h 동안 침지 시켰다. 추출한 지방 침착물은 HPLC를 이용하여 지방성분을 분리하고 정량 하였다. 추가적으로 시간 경과에 따른 산소 투과율, 광 투과율, 표면 변화를 관찰하였다. 침착 된 지방의 총량은 1-day lenses가 1일차 127.55 ㎍/lens, 2일차 302.96 ㎍/lens, 3일차 353.30 ㎍/lens이었다. 3-days lenses는 1일차 46.22 ㎍/lens, 2일차 66.07 ㎍/lens, 3일차 67.45 ㎍/lens이었다. 지방 침착량은 1-3일 모두에서 3-days lenses가 적었다. 산소 투과도(Dk/t)는 최초 1-day lenses가 81×10^-9(cm/sec)(mlO₂/ml × mmHg), 3-days lenses가 13.23×10^-9(cm/sec)(mlO₂/ml×mmHg)로 3-days lenses가 현저하게 낮았으며, 3일차 1-day lenses는 48×10^-9(cm/sec)(mlO₂/ml × mmHg), 3-days lenses가 9.6 ×10^-9(cm/sec)(mlO₂/ml×mmHg)이었다. 가시광선 투과율은 최초 1-day lenses가 97.21%, 3-days lenses가 97.65%였으며, 3일차 1-day lenses가 94.25%, 3-days lenses가 95.15%로 나타났다. 시간 경과 별 표면 변화를 확대 관찰 시 3-days lenses의 표면에 보다 많은 침착물이 관찰되었다. 이로써 1-day lenses와 비교하여 3-days lenses의 3일 착용 시 지방 침착량은 적었으나, 표면 침착물은 3-day lenses에서 보다 많이 관찰되었으며, 이는 지방 침착물 외 다른 침착물이 더 많았을 것으로 판단된다.

• 한국식품과학회지
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• 제37권5호
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• pp.795-800
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• 2005

본 연구의 목적은 김치의 맛을 증진시키기 위하여 감미료로 첨가되는 설탕 대신에 감초추출물(리코S)을 첨가하여 김치의 품질특성을 개선하고자 하는 것이다. 김치 제조원료에 설탕 또는 리코S를 첨가하여 젖산균의 생육과 산생성, 관능성 및 휘발성냄새성분에 미치는 영향을 조사하였다. 김치에 첨가된 리코S의 영향을 보면 다음과 같다. pH는 0 day와 1 day는 리코S의 첨가에 따라 차이가 없었으나, 2 day와 3 day의 경우는 리코S의 첨가농도가 증가함에 따라 다소 상승하는 경향을 보였다. 산도는 0 day와 1 day는 리코S의 첨가농도가 증가함에 따라 유의적으로 증가하였으나(p<0.05), 2 day와 3 day의 경우는 리코S의 첨가농도가 증가함에 따라 유의적으로 감소하였다(p<0.05). 젖산균수는 설탕 또는 리코S 첨가시료 사이에 차이가 없었다. 관능검사의 결과를 보면 1-3 day 숙성된 시료의 전반저인 기호도는 리코S 0.05% 또는 0.1% 첨가시료가 다른 시료보다 우수하였고, 0.2% 첨가시료가 가장 낮았다. 맛은 전반적인 기호도와 경향이 일치하며, 냄새는 0.2% 첨가시료가 다른 시료보다 낮았으며, 조직감은 4 시료사이에 차이가 없었다. 한편 색상은 3 day숙성시료를 제외하고는 리코S 0.2% 첨가시료가 다른 시료에 비하여 낮았다. 김치에 첨가된 리코S는 휘발성냄새 성분에는 현저한 변화를 초래하지 않았다.

• 한국가정과학회지
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• 제7권1호
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• pp.101-111
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• 2004

The purpose of this study is to compare overall educational belief and teacher's job satisfaction of day-care teachers. The subject of this were 112 day-care teachers in the Jeonbuk areas. The data were collected using Questionaries and analyzed by the statistical methods of frequencies, percentages, a Chi-square, ANOVA with SPSS pc program: The research Questions were as follows; 1. As the result of the investigation that what is the educational belief of the day-care theacher according to the marital status, academic background, the type of license, and the type of day-care centers\ulcorner 2. Is there any difference in teacher's job satisfaction of day-care teachers according to teachers education belief\ulcorner The main results of this study were as follows: 1. There was not difference in the teacher's educational belief of day-care teachers according to the marital status, academic background, the type of license, and the type of day-care centers in the Jeonbuk province. 2. Day-care teachers who have maturationism education belief was more than behaviorism education belief and interactionism education belief. 3. In the difference between teacher's belief of day-care teachers and job satisfaction of day-care teachers, the teacher who has interactionism, maturationism educationa belief has higher job satisfaction than the teacher who has behaviorism educational belief.

• 한국응용과학기술학회지
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• 제7권2호
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• pp.1-10
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• 1990

This study was attempted to report the effect of Does for Job's tear on steroid hormone changes in rats. Experimental object was one male rat and four female rats in one group. The experimental diet keeped pace with basal diet and Does of Job's tear. A group was basal diet and basal diet & Does for Job's tea was B group(1/day), C group(2/day). D group(3/day), F group(1 day among 3 day, 3/day), G group (1day among 5 day. 3/day) and E group was made diet & Job's tear(3/day). The reduce of weight was appeared to higher in D group and revealed to higher was F, C, B, G and A group. The changes of steroid hormone were showed to significant difference in A group and indicated to significant difference were G, F, B, C, D and E group.

• 한국가축번식학회지
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• 제19권2호
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• pp.141-145
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• 1995

The effect of splenectomy on the concentration of progesterone in pregnant wistar rats showing 4-day regular estrous cycles more than two cycles were investigated. The day after mating with the same male animal was designated day 0 of pregnancy. Splenectomy was conducted on day 0 (early-S), 6 (middle-S) and 13 (late-S) of pregnant rat, respectively. Blood sample were collected at day 1, 7, 14 and 21 of pregnancy. Concentraton of serum progesterone was determined by emzyme-linked immunosorbent assay (ELISA) using specific antibodies and emzyme conjugate(progesterone peroxidase labeled). In normal pregnant rats, serum progesterone concentrations were increased significantly (P<0.05) on day 7 and 14 of pregnancy compared with on day 1 of pregnancy and then dramatically decreased on day 21. However in early and middle splenectomized rats, progesterone concentrations were significantly (P<0.05) decreased on day 7 and 14 of pregnancy compared with same day of normal rats. These observations indicate that luteotropic action and steroidogenesis by corpus luteum of ovary may be regulated by splenocytes in rat.

• 한국보건간호학회지
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• 제37권1호
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• pp.43-53
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• 2023

Purpose: This study aims to identify the factors influencing the depression of teachers in child day care centers. Methods: The study 181 teachers working at national/public or child day care centers certified by Seoul Metropolitan government in Seoul, South Korea. Data from September to October 2021, and emotional labor, job stress, ego resilience, stress resilience, and depression. Data were analyzed using t-test, ANOVA, Pearson's correlation coefficients, and stepwise multiple regression. Results: The average depression of child day care center's teachers 8.52±7.58 out of 60 points, and the depression group (above 21 points) was 9.4%. Depression in child day care center's teachers was positively correlated with job stress (r=.42, p<.001) and negatively correlated with ego resilience and stress resilience (r=-.55, p<.001). Factors affecting depression of child day care center's teachers were found to be job stress (p=0.005), ego resilience (p<.001), stress resilience (p=0.031) and the explanatory power of these variables was 39%. Conclusion: Results of this study indicate that in the future development of depression intervention programs for teachers of child day care centers, it is necessary to include measures that reduce job stress and strengthen ego resilience and stress resilience.

• Journal of Acupuncture Research
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• 제25권4호
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• pp.31-39
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• 2008

Objectives : The aim of this study is comparing the improvement of Bell's palsy and Ramsay hunt syndrome according to treatment duration. Methods : The 11cases diagnosed as Ramsay hunt syndrome and 30cases of Bell's palsy who visited Cheong-ju Oriental Medical hospital from February 2006 to June 2008 were evaluated. We used Yanagihara's unweighted Grading System to confirm the improvement. Results : In the analysis of cause, except the "none", the most common cause was "Overwork" in both two group. After 5-day treatment the score was getting worse but after 10-day treatment score was improved in both group. The improvement of Bell's palsy group was better than that of Ramsay hunt syndrome group after 5-day and 10-day treatment, but there was no significance. Conclusions : In comparison of Yanagihara's unweighted grading score checked before treatment, after 5-day, 10-day and 15-day treatment between Bell's palsy and Ramsay hunt sundrome, there was no statistical significant difference.

• 대한환경공학회지
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• 제27권5호
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• pp.555-561
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• 2005

본 연구에서는 유기성폐기물의 최종생분해도를 평가하여 혐기소화조의 정확한 효율평가를 위한 기초자료를 확보하고 유기물의 분해경향을 보다 정확히 평가할 수 있는 다중 분해속도분석(Multiple k analysis)기법을 개발하여 다중 분해속도상수와 각각의 분해속도에 관여하고 있는 기질의 분율을 산정하려는데 목적이 있다. 연구 결과 폐활성슬러지의 최종생분해도는 50%, 농축슬러지는 40%로 평가되어 85%내외의 생분해도를 나타낸 Sorghum이나 Swine Waste에 비해 현저히 낮았다. 활성슬러지의 경우 생분해가능한 기질의 71%가 22일내에 초기분해속도상수 $k_1$인, $0.151\;day^{-1}$로 빠르게 분해되고 그 이후로 남아 있는 29%의 기질이 분해속도상수 $k_2$인, $0.021\;day^{-1}$로 아주 느리게 분해되었다. 반면 농축슬러지의 경우는 기질의 39%만이 $k_1$인, $0.123\;day^{-1}$로 빠르게 분해되었으며 60% 이상이 $k_2$인, $0.001\;day^{-1}$로 매우 느리게 분해되었다. 한편 Sorghum은 초기분해속도상수($k_1$)인 $0.248{\sim}0.358\;day^{-1}$ 범위로 기질의 약 90%($S_1$)가 16일 이내에 빠르게 분해되었으며 축분의 경우 $k_1$인, $0.155{\sim}0.209\;day^{-1}$ 범위로 기질의 $84{\sim}91%(S_1)$가 14일 이내에 빠르게 분해됨을 알 수 있다. 따라서 Multi k Analysis방법을 이용하여 도출된 하수 슬러지의 분해속도상수와 기질의 분율 및 분해패턴을 토대로 혐기성소화시 효율적이고 경제적인 HRT의 산정이 가능하다.

• 한국동물위생학회지
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• 제19권3호
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• pp.221-226
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• 1996

IBD's antibody level and morphological change of immune organ was examined in chicken. The results were as follows ; 1. Seventy percent at 42 day and 40% at 45 day of age chickens were reacted positively by the agar gel immunodiffusion test and 42 day and 45 day of age chickens indicated 1859, 1425 by the ELISA test, respectively. 2. In 2 and 5 day young broiler chickens, the level of maternal antibody was not proper. B/B ratio showed low level, but S/B ratio and BS were normal. 3. In layer, 100% of 8 and 86 day of age chicken and 70% at 40 day of age chicken had antibody aganist IBDV. The level of antibody was high as 2293 and 3336 in 8 and 86 day of age chicken, while was low as 1186 in 40 day of age chicken. B/B ratio showed low level and S/B ratio high level, but BS was normal.

• 가정과삶의질연구
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• 제20권2호
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• pp.57-68
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• 2002

The purpose of this study was to examine working mothers'parenting behavior as related to job characteristics, day care quality and psychological well-being. The subjects of this study were 202 working mothers of 3-to-6 year old children enrolled in day care centers. Data were gathered via questionnaires responded by mothers. As results, both mother's psychological well-being and parenting behaviors were positively related to job characteristics such as husband's support and work place policy and day care Quality Most significantly, the relations between husband's support as well as day care Quality and mother's behaviors were completely mediated via mother's psychological well-being. This study demonstrated that working mothers'psychological well -being is an important mediating variable in predicting positive child-rearing behaviors.