• 구강회복응용과학지
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• 제39권3호
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• pp.158-167
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• 2023

최근 치의학 분야에서 디지털 기술이 발달함에 따라 computer-aided design-computer-aided manufacturing (CAD/CAM)을 이용한 의치 제작 진료 단계의 변화를 가져왔다. CAD/CAM 기술을 이용한 의치 제작 방식은 제작기간과 내원 간격의 단축으로 임상적인 효율성과 편리함을 제공함과 동시에 기공을 단순화하여 오류 발생을 감소시켰다. 본 증례는 복잡한 병력과 신체적 장애를 가진 환자에게 기존의 임시의치를 디지털 방식으로 복제 및 출력하여 개인 트레이로 활용하였고, 부가중합형 실리콘 인상재로 채득한 최종 인상체에는 수직고경과 중심위, 상악 전치부의 각도 및 길이에 대한 정보가 포함되어 있으며 이를 통해 제작 기간과 내원 간격을 단축하여 환자의 만족도를 높일 수 있었다. 최종 의치는 밀링 방식 및 monolithic disc를 이용하여 제작하였고, 적절한 안정과 유지, 지지를 보여 기능적, 심미적으로 만족스러운 결과를 얻을 수 있었다.

• Applied Biological Chemistry
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• 제35권1호
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• pp.55-63
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• 1992

봉동산 생강(Zingiber officinale Roscoe)의 정유성분조성을 분석코자 액체 이산화탄소 주출법으로 분리하여 silica gel column chromatography범에 의해 탄화수소 화합물 분획과 함산소 화합물 분획으로 분류한 다음 GC 및 GC-MS로 성분을 검토하였다. 추출물의 수율은 6.96%이었으며, SCC에 의해 분리된 분획의 분석결과 mass spectrum에 의해서 잠정적으로 확인된 58종을 포함하여 102종의 향기성분이 확인되었다. 중 탄화수소 화합물 분획에서는 zingiberene, ${\beta}-sesquiphellandrene,\;{\gamma}-bisabolene,\;{\gamma}-cadinene,\;ar-curcumene$ 등이 주성분이었고, 함산소 화합물 분획에서는 gernal, sesquisabinene hydrate, borneol, zingiberenol 등이 주성분 이었다. 총 essential oil의 조성은 $zingiberene,\;citronellol+{\beta}-sesquiphellandrene,\;geranial,\;{\gamma}-bisabolene,\;ar-curcumene+geranyl\;acetate$ 등이 주성분으로 sesquiterpene hydrocarbon의 함량이 높게 나타났다.

• 한국산학기술학회논문지
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• 제14권10호
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• pp.4927-4934
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• 2013

본 연구의 목적은 기본심폐소생술 교육프로그램이 중학생의 심폐소생술 관련 지식, 태도 및 수행능력에 미치는 효과와 그 지속성을 확인하는 것이다. 연구대상자는 D시에 소재하는 2학년 2개 학교를 대상으로 실험군과 대조군 각각 35명, 총 70명으로, 자료수집기간은 2012년 7월부터 2011년 11월까지였다. 자료 분석은 SPSS WIN 21.0을 이용하여 빈도와 백분율, $x^2$-test, t-test, repeated measures ANOVA로 분석하였다. 기본심폐소생술 교육프로그램을 이용한 실험군은 지식, 태도, 수행능력이 교육 전보다 교육 후 대조군보다 유의하게 증가하였으며, 기본심폐소생술에 대한 태도와 지식은 교육 후 2개월까지 지속되었고, 기본심폐소생술에 대한 수행능력은 교육 직후 유의한 수준으로 감소하였다. 따라서 기본심폐소생술에 대한 지식, 태도, 수행능력을 유지하기 위해 학교 기본교육과정 속에서 기본 심폐소생술 교육은 물론 일정기간을 둔 재교육이 실시되어야 한다.

• 여성건강간호학회지
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• 제9권2호
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• pp.161-169
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• 2003

The purpose of this study was to identify menstrual symptoms, coping and Relief of Symptoms used by female college students. A convenience sample of 202 students were obtained from two colleges in Seoul. Data were collected through questionnaires from September 10 to December 18, 2001, Three instruments were used in this study, the Menstrual Symptoms Questionnaire by Park K. R(1988) and Menstrual Coping Questionnaire and Relief of Symptoms by Billings & Moos(1981) modified for this study. 1)Part time instructor, Department of Nursing, Pochon CHA University The data were analyzed by descriptive statistics, t-test, ANOVA with the SPSS 10.0 program. The result of this study are as follows. 1. Prevalence rate of dysmenorrhea was 91.6%. 2. The total mean score for menstrual symptoms was 1.89 of a possible total of 5 and mean score for each category was, 2.26 for water retention, 2.11 for negative affect, 2.02 for pain, 1.83 behavioral change, 1.69 for autonomic reactions, and 1.53 for concentration. 3. According to the result of this study, statistical differences were found for age (F=3.76, p=0.01), menstrual fear (t=2.02, p=0.04), dysmenorrhea (t=7.73, p=0.02), and taking medication (t=5.95, p=0.00). 4. The coping mode with the highest scores were 'rest and go to bed (83.7%)', 'regard mensturation as a physiological and temporary phenomenon (68.3%)', 'take a warm shower(66.8%)'. The most frequently used methods to relief of symptoms were 'take pain killers (99.9%)', 'to apply hot water bag on painful parts of the body (96.6%)' and 'rest and go to bed (88.8%)'.

• Asian Pacific Journal of Cancer Prevention
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• 제17권12호
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• pp.5229-5235
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• 2016

Prostate cancer (PCa) remains one of the most widespread and perplexing of all human malignancies. Assessment of gene expression is thought to have an important impact on cancer diagnosis, prognosis and therapeutic decisions. In this context, we explored combined expression of PCa related target genes AMACR and PCA3 in 126 formalin fixed paraffin embedded prostate tissues (FFPE) from Moroccan patients, using quantitative real time reverse transcription-PCR (RT-qPCR). This quantification required data normalization accomplished using stably expressed reference genes (RGs). A panel of twelve RG was assessed, data being analyzed using GenEx V6 based on geNorm, NormFinder and statistical methods. Accordingly, the hnRNP A1 gene was identified and selected as the most stably expressed RG for reliable and accurate gene expression quantification in prostate tissues. The ratios of both PCA3 and AMACR gene expression relative to that of the hnRNP A1 gene were calculated and the performance of each target gene for PCa diagnosis was evaluated using receiver-operating characteristics. PCA3 and AMACR mRNA quantification based on RT-qPCR may prove useful in PCa diagnosis. Of particular interesting, combining PCA3 and AMACR quantification improved PCa prediction by increasing sensitivity with retention of good specificity.

• Journal of Forest and Environmental Science
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• 제40권2호
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• pp.123-140
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• 2024

More than half of the global distribution of the Rhododendron genus is found in China, with over 74% being endemic species. However, there is still insufficient data to chemically classify the Rhododendron genus native to China. Therefore, in this study, a chemotaxonomic study was conducted to determine the presence of taxifolin-3-O-arabinopyranoside, a flavonoid compound, in the Rhododendron genus native to China. Forty-three species of Rhododendron native to China-20 from across China, 8 from Beijing, 6 from Yanbian, and 9 from Yunnan-were utilized in the experiment. Through HPLC analysis, the retention time was compared with that of taxifolin-3-O-arabinopyranoside, a standard compound, and quantitative analysis was conducted. As a result, taxifolin-3-O-arabinopyranoside was detected in 22 out of 43 the Chinese Rhododendron species. Afterwards, LC-MS/MS analysis was performed on the 22 species in which taxifolin-3-O-arabinopyranoside was detected to determine whether the molecular weight was consistent with the standard compound. Under negative conditions, it was confirmed that all samples exhibited the same molecular weight as taxifolin-3-O-arabinopyranoside, 435-436 m/z. The same compound was detected in more than half of the Rhododendron species used in the experiment, and taxifolin-3-O-arabinopyranoside was determined to be an indicator compound for Rhododendron species native to China. In addition, the possibility of using the above results as basic data for chemical classification of Chinese Rhododendron genus was confirmed.

• 대한화학회지
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• 제38권9호
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• pp.640-652
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• 1994

전통 민속소주의 향기성분의 실체를 규명할 목적으로 안동소주, 문배술, 이강주, 진도홍주 중에 존재하는 알코올 동족체인 퓨젤유 성분을 GC-FID-MS로 분석하여 중국산 카오량츄인 Moutainchiew, Ergoutoutiu 등과 비교하였다. 다공성 중합체인 Porapak Q를 이용한 고체상 추출법과 수증기 증류법, 용매추출법 등의 시료전처리 방법을 비교 실험하고 분석조건에 따른 알코올 동족체의 용리거동을 검토하였다. 컬럼오븐온도 변화와 분자량, 끓는점, 용량계수 사이에는 직선적 상관성을 나타내었다. 알코올 동족체의 탄소수가 증가할수록 머무름시간, 분자량, 끓는점, 용량계수의 log값들은 직선적으로 증가하였다. 알코올 동족체의 유전상수가 클수록 머무름 시간은 짧아지고 용량계수는 작아지는 경향을 나타내었으나 탄소수 4개의 sec-butyl alcohol은 유전상수가 작음에도 불구하고 탄소수 3개인 n-propyl alcohol보다 머무름시간이 짧았다. Ethyl alcohol 이외에 methyl alcohol, n-propyl alcohol, isobutyl alcohol, isopentyl alcohol, phenethyl alcohol 등이 검출되었다. 중국산 고량주에는 n-propyl alcohol 함량이 상대적으로 많은데 비하여 우리나라 소주에는 isopentyl alcohol의 함량이 높았다. 관능검사보다 객관적인 객관적인 함량형태 인식을 위하여 다변량통계해석법(주성분분석)을 사용하여 고찰한 결과 우리나라 민속소주는 중국산 고량주와는 완전히 다른 형태를 보여주었다.

• 한국조경학회지
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• 제34권1호
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• pp.21-36
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• 2006

This study was undertaken to analyze the effects of pavement thermal properties and water retention characteristics on the surface temperature of the gray permeable cement concrete pavement during the summer. Following is a summary of major results. 1) The hourly surface temperature of pavement could be well predicted with a heat transfer model program that incorporated the input data of major meteorological variables including solar radiation, atmospheric temperature, dew point, wind velocity, cloudiness and the evaporation rate of the pavements predicted by the time domain reflectometry (TDR) method. 2) When the albedo was changed to 0.5 from an arbitrary starting condition of 0.3, holding other variables constant, the peak surface temperature of the pavement dropped by 11.5%. When heat capacity was changed to $2.5\;kJm^{-3}K^{-1}\;from\;1.5\;kJm^{-3}K^{-1}$, surface temperature dropped by 8.0%. When daily evaporation was changed to 1 mm from 2 mm, temperature dropped by 5.7%. When heat conductivity was changed to $2.5\;Wm^{-1}K^{-1}\;from\;1.5\;Wm^{-1}K^{-1}$, the peak surface temperature of the pavement fell by 1.2%. The peak pavement surface temperature under the arbitrary basic condition was $24.46^{\circ}C$ (12 a.m.). 3) It accordingly became evident that the pavement surface temperature can be most effectively lowered by using materials with a high albedo, a high heat capacity or a high evaporation at the pavement surface. The glare situation, however, is intensified by raising of the albedo, moreover if reflected light is absorbed into surrounding physical masses, it is changed into heat. It accordingly became evident that raising the heat capacity and the evaporative capacity may be the moot acceptable measures to improve the thermal characteristics of the pavement. 4) The sensitivity of the surface temperature to major meteorological variables was as follows. When the daily average temperature changed to $0^{\circ}C\;from\;15^{\circ}C$, holding all other variables constant, the peak surface temperature of the pavement decreased by 56.1 %. When the global solar radiation changed to $200\;Wm^{-2}\;from\;600\;Wm^{-2}$, the temperature of the pavement decreased by 23.4%. When the wind velocity changed to $8\;ms^{-1}\;from\;4\;ms^{-1}$, the temperature decreased by 1.4%. When the cloudiness level changed to 1.0 from 0.5, the peak surface temperature decreased by 0.7%. The peak pavement surface temperature under the arbitrary basic conditions was $24.46^{\circ}C$ (12 a.m.)

• 한국엔터테인먼트산업학회논문지
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• 제15권6호
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• pp.55-70
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• 2021

본 연구는 국내 엔터테인먼트 산업을 대상으로 하여 다음의 두 가지 내용을 실증적으로 분석하는 것을 목적으로 한다. 우선, 기업의 현금보유수준이 엔터테인먼트 기업의 재무적 가치측면에서 어떠한 영향을 미치는지를 분석한다. 그 다음으로, 기업의 어떠한 특성들이 엔터테인먼트 기업의 현금보유수준에 영향을 미치는지를 분석한다. 이를 검증하기 위하여 2000년부터 2018년의 총 19년 동안의 장기간 표본을 이용하여 한국거래소 유가증권시장 및 코스닥시장에 상장된 엔터테인먼트 기업들을 대상으로 분석을 진행하였다. 분석의 주요 결과는 다음과 같다. 첫째, 엔터테인먼트 기업의 현금보유수준이 비엔터테인먼트 기업에 비하여 더 높은 것으로 나타났다. 둘째, 엔터테인먼트 기업의 현금보유수준의 증가는 기업가치를 증가시키는 작용을 하고 있었다. 셋째, 기업의 특성 변수 중에서 부채비율 및 수익성이 현금보유수준에 큰 영향을 미치는 것으로 나타났다. 부채비율이 낮고 수익성이 높을수록 엔터테인먼트 기업은 현금을 더 많이 보유하는 것이 발견되었다. 이러한 결과는 다음과 같은 시사점을 준다. 첫째, 엔터테인먼트 산업은 향후 투자기회가 높은 것으로 주식시장에서 평가받고 있고, 이에 따라 높은 현금보유수준은 높은 기업 가치로 연결된다. 둘째, 엔터테인먼트 기업의 현금보유는 부채조달의 대용수단으로 사용되어 자금조달이 필요한 경우를 대비하고 있으며, 엔터테인먼트 기업의 현금보유와 관련한 대리인문제는 낮은 것으로 판단된다.

• 한국전문물리치료학회지
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• 제30권2호
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• pp.128-135
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• 2023

Background: Despite the fact that aquatic exercise is one of the most popular alternative treatment methods for children with cerebral palsy (CP), there are few research regarding its effectiveness. Objects: The purpose of this study was to examine the effects of aquatic exercise on upper extremity function and postural control during reaching in children with CP. Methods: Ten participants (eight males and two females; 4-10 years; Gross Motor Function Classification System levels II-IV) with spastic diplegia were recruited to this study. The aquatic exercise program consisted of four modified movements that were selected from the Halliwick 10-point program to enhance upper extremity and trunk movements. The participants attended treatment two times a week for 6 weeks, averaging 35 minutes each session. The Box and Block Test (BBT), transferring pennies in the Bruininks-Oseretsky Test (BOT), and pediatric reaching test (PRT) scores were used as clinical measures. Three-dimensional motion analysis system was used to collect and analyze kinematic data. Differences in BBT and BOT values among pre-treatment, post-treatment, and retention (after 3 weeks) were analyzed using a Friedman test. In addition, the PRT scores and variables (movement time, hand velocity, straightness ratio, and number of movement units) from the three-dimensional motion analysis were tested using a Wilcoxon signed-rank test. The significance level was established at p < 0.05. When the results appeared to be statistically significant, a post-hoc test for multiple comparisons was performed with the Wilcoxon signed-rank test. Results: All clinical measures, which included BBT, transferring pennies of BOT, and PRT, were significantly increased between pre-intervention and post-intervention scores and between pre-intervention and retention scores after treatment (p = 0.001). Three-dimensional motion analysis mostly were significantly improved after treatment (p = 0.001). Conclusion: Aquatic exercise may help to improve body function, activity, and participation in children with varying types of physical disabilities.