• 한국식품영양과학회지
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• 제34권7호
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• pp.953-958
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• 2005

약초 음료인 HC와 PG의 항균효과, 항암효과 및 항알레르기효과에 대해 다음과 같은 결과를 얻었다. 원판확산법을 통해 관찰한 S. aureus와 P. aeruginosa에 대한 저지 효과는 약초 음료 HC에 비해 약초 음료 PG에서 더 크게 나타났으며 S. aureus보다 P aeruginosa에 대한 항균력이 더 강하게 나타났다. 48시간 동안 약초발효 음료의 농도를 달리하여 S. aureus와 P. aeruginosa에 대한 증식 저해 정도를 관찰한 결과 S. aureus에 관한 증식 저해 정도는 약초 음료 HC군의 경우 $5\%$대에서부터 확실한 균 증식 억제 정도를 나타내었으며, 48시간 경과 후에는 $10\%$이상의 첨가군에서 균 증식 저해능이 더욱 커짐을 볼 수 있었다 S. aureus에 관한 약초 음료 PG의 증식 저해능은 24시간 경과 후 $5\%$ 첨가군에서 부터 확실한 균증식 억제능을 보였다. P. aeruginosa에 대한 증식 저해 정도는 약초 음료 HC군의 경우 24시간 경과 후 $10\%$대에서부터 확실한 균증식 억제를 나타내었으며, 약초음료 PG의 증식 저 해능은 24시간 경과 후 $5\%$ 첨가군에서 부터 확실한 균 증식 억제능을 나타내었다. 약초 음료 HC와 약초 음료 PG의 고형암(S-180) 성장 억제에 대한 실험 결과 대조군에 비해 $5\%$ HC군에서는 $62\%,\;10\%$ HC군에서는 $66\%$의 고형암 억제효과를 나타내었고, $5\%$ PG군에서는 $53\%,\;10\%$ PG군에서 는 $61\%$의 고형암 성장 억제효과를 나타내었다. 암세포 성장 저해효과 실험결과 인간 유래 간암세포인 Hep3B에 대해 약초 음료 HC원액은 $24.6\%$,약초 음료 PG원액은 $69.2\%$의 저해율를 보였다. 약초 음료 HC와 약초 음료PG의 히스타민 유리 억제효과를 측정한 결과compound 48/80을 처리하여 유리된 히스타민량에 비해 약초 음료PG는 $46.4\%$, 약초 음료 HC는 $17.9\%$의 히스타민 분비 억제효과를 나타내었다.

• 산업융합연구
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• 제22권8호
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• pp.63-72
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• 2024

본 연구는 간호대학생의 유머감각과 스트레스 대처 방식이 임상실습적응에 미치는 영향을 파악하기 위해 시도되었다. 연구대상은 180명의 간호대학생으로, 자료수집은 자기기입식 설문지를 이용하여 2024년 4월 15일부터 26일까지 실시하였다. 수집된 자료는 t-test, one-way ANOVA, Pearson's 상관관계, 다중회귀분석을 시행하여 분석하였다. 연구결과, 유머감각은 3.52점, 스트레스 대처 방식은 3.40점, 임상실습적응은 3.46점이었다. 일반적 특성에 따른 임상실습 적응은 전공만족도(F=29.80, p<.001), 임상실습 만족도(F=40.46, p<.001), 실습동료와의 관계(t=5.05, p<.001), 성격(t=-3.41, p<.05)에 따라 통계적으로 유의한 차이를 나타냈다. 임상실습 적응은 유머감각(r=.31, p<.001), 스트레스 대처 방식(r=.43, p<.001)과 통계적으로 유의한 양의 상관관계를 나타냈다. 임상실습 적응에 대한 영향요인은 임상실습 만족도(β=.34, p<.001), 스트레스 대처 방식(β=.29, p<.001), 전공 만족도(β=.23, p<.05)로 총 변화량의 40%를 설명하였다. 본 연구결과를 통해 간호대학생의 임상실습 적응을 향상시키기 위해서 전공 만족도, 임상실습 만족도, 스트레스 대처 방식을 높일 수 있는 프로그램 개발과 전략이 필요하다.

• 대한영양사협회학술지
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• 제23권2호
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• pp.180-191
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• 2017

The purpose of this study was to identity the probability of cross-contamination from the environment. For this, we examined foodservices at 20 universities/colleges for microbiological analysis of their working facilities and environment as well as their preventive equipment against cross-contamination. Seventy percent of the 20 foodservices were found to maintain one unified working area, which suggests high probability of contamination of food/utensils/equipment in the cooking area by pre-preparation or dish washing. According to the microbiological analysis, the hygiene acceptance ratio of working facilities in the clean zone was 70%, which was higher than the average 45% hygiene acceptance ratio of working facilities in the contamination operating zone. There was a significant difference in the total plate count (P<0.001) and coliform count (P<0.01), which demonstrates that work tables in the clean zone were in a good state compared to those in the contamination operating zone. In the contamination operating zone, refrigerator shelves had a high probability of cross-contamination. Regarding the floor surface and airborne microbes, cooking areas which should be maintained as clean zones had higher cross-contamination probability than those in the contamination operating zone. So corrective actions such as cleaning and sanitizing, keeping dry floors, lowered temperature and humidity, shoe disinfecting facilities, and checking concentrations, are necessary to manage floor surfaces and airborne microbes in the cooking area.

• 미생물학회지
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• 제24권2호
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• pp.106-112
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• 1986

자연계에서 분리한 Pseudomonas에서 크기가 매우 큰 plasmid (약 180 megadaltons:를 분리하였다. 이 plasmid는 기존의 plasmid 검출방법보다 더 온화한 조건에서 분리되었다. Alkalin., sodium dodecyl sulfate (pH 12. 45)를 사용하여 chromosomal DNA를 변성시킨 뒤 $55^{\circ}C$로 열처리 하여 covalently closed circular DNA 의 손실을 최대한으로 방지하였고, polyethylene glycol을 최종농도 10%로 첨가하여 plasmid DNA를 선택적으로 농축하였다. 한편, 이 plasmid는 mitomycin C를 처리하여 얻은 cured sitrains에서는 나타나지 않아 salicylate를 분해하는 새로운 plasmid로 확인되었다.

• 대한물리의학회지
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• 제14권4호
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• pp.1-8
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• 2019

PURPOSE: The purpose of this study was to compare the maximum knee strength and endurance of elderly Korean women with Kellgren-Lawrence grade (K-L II) by age. METHODS: In this study, the total number of participants was 50, divided into five groups of 10 by age. Maximum knee muscle strength was measured at a low speed of 60°/sec using Biodex, an isokinetic device for comparison of maximum knee muscle strength, whereas muscle endurance was measured by muscle contraction at a high speed of 180°/sec. The peak torque values of the extensor and flexor muscles in the muscle strength and muscle endurance tests were collected according to each classification. RESULTS: The results of the experiment show that maximum muscle strength and muscle endurance decreased significantly at 60°/sec and 180°/sec during flexion and extension according to age (p<.05). In particular, the age group of 71 to 75 years showed the most significant correlation with other age groups (p<.05). CONCLUSION: The results of this study can be used as basic data for increasing physical activity and muscle strength in women with knee osteoarthritis.

• 한국미생물·생명공학회지
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• 제7권2호
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• pp.97-102
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• 1979

토양원으로 부터 분리된 Actinomycetes 120여주를 대상으로 S.D.I에 의해 마우스의 복수암인 Ehrlich ascith carcinoma 및 Sarcoma 180 세포의 succinate dehydrogonase 활성을 조해하는 물질을 강하게 생성하는 균 1주(As-568)를 선별하였으며 이 활성물질은 정상조직인 간, 신장, 뇌등에는 아주 강한 inhibition index를 나타내었으나 (20％ 이하) 암조직에서는 50％ 정도의 선택적 조해작용을 나타내었다. glucose-asparagine 배지에서 4∼S일간 배양하였을 때 가장 높은 역가의 활성물질을 생성하였으며 본 물질은 중성영역의 pH 및 열에 대해서는 비교적 안정한 고분자의 비투석성 물질로 추정된다.

• Journal of Microbiology and Biotechnology
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• 제20권2호
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• pp.363-369
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• 2010

This study was conducted to investigate the effects of different sanitizers and contact times on storage quality and microbial growth in fresh-cut broccoli. Fresh broccoli samples were cut into small pieces, washed each for 90 s and 180 s in normal tap water (TW), $100\;{\mu}/l$ chlorinated water (CL, pH 7), electrolyzed water (EW, pH 7.2) containing $100\;{\mu}/l$ free chlorine, or $2\;{\mu}/l$ ozonated water ($O_3$). Then, samples were packaged in 30-${\mu}m$ polyethylene bags and stored at $5^{\circ}C$ for 9 days. No significant differences were observed in gas composition and color parameters ($L^*$, $a^*$, $b^*$, and hue angle) among different sanitizers with contact times. No off-odor was detected during the storage. A longer contact time was not effective in reducing microbial population, except with $O_3$ washing. $O_3$ with 90 s was not much effective in reducing microbial population compared with Cl or EW. However, samples washed with $O_3$ for 180 s observed the lowest numbers of total aerobic and coliform plate counts. The result suggested that, a longer contact time of ozone can be used as a potential sanitizer to maintain the microbial quality and safety of fresh-cut broccoli.

• 한국세라믹학회지
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• 제39권6호
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• pp.594-597
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• 2002

플라즈마 화학기상증착(PECVD)법을 이용하여 p-type Si(100) 웨이퍼에 Silicon Oxynitride(SiON) 후막을 SiH$_4$ , $N_2$O, $N_2$ 가스를 혼합하여 증착하였다. Prism coupler측정을 통해 SiON 후막의 굴절률 1.4620~1.5312을 얻었으며, rf power가 180 W에서 5.92$\mu$m/h의 증착률을 나타내었다. 증착변수에 따른 화학적 조성의 영향은 X-ray Photoelectron Spectroscopy(XPS) 을 통하여 관찰하였다. 또한, SiON 후막 증착후에 $1.5\mu$m 부근의 흡수띠를 제거하기 위해 105$0^{\circ}C$의 $N_2$ 분위기에서 2시간 동안 열처리를 행하였다.

• 아동학회지
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• 제6권1호
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• pp.41-59
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• 1985

The present research investigated the validity and reliability of the Verbal and Figural tests of the Torrance Tests of Creative Thinking(TTCT). Its potential as a basis of normative data, and differences in children's sex and grade in school were also examined. The subjects of this study were 360 children (180 boys, 180 girls) enrolled in two public elementary schools grades 1-6. Pearson's product-moment coefficient and two-way analysis of variance were used for analyzing data collected from these tests. The present research showed a coefficient of concurrent validity of the TTCT-Verbal test of .40. The coefficient of equivalence from reliability between the TTCT-Verbal test and TTCT-Figural test was .65 (p<.01). Regarding the coefficient of interscorer reliability, the total score of the TTCT-Verbal test was .86 and that of the TTCT-Figural test was .95. The coefficient of intrascorer reliability on the total score of the TTCT-Verbal test was .93 and that of the TTCT-Figural test was .96. Generally, score reliability was .86 to .96 in total score but there were great differences in the reliability of sub-factor scores. There were no significant differences between boys and girls in the distribution of scores on the TTCT-Verbal test and the TTCT-Figural test. There were significant differences between grades (p<.01) on the distribution of total scores and subfactor scores of the TTCT-Verbal Test.

• 임상간호연구
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• 제21권2호
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• pp.180-187
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• 2015

Purpose: This study was done to identify the effects of semen sinapsis albae acupressure on fatigue and sleep among patients undergoing chemotherapy for breast neoplasms. Methods: The design was a nonequivalent control group nonsynchronized design. Participants were 46 hospitalized patients (23 in the experimental group and 23 in the control group) who were undergoing chemotherapy during November and December 2014. The experimental group underwent routine chemotherapy nursing care and at the same time received acupressure on the spots of Zoksamli, Samumgyo and Shinmun. The control group underwent routine chemotherapy nursing care. The data were analyzed using test and t-test with the SPSS 21.0 program. Results: The level of fatigue in the experimental group was lower than in the control group (t=5.82, p<.001). The level of sleep in the experimental group was higher than in the control group (t=-5.16, p<.001). Conclusion: The findings of the study indicate that acupressure is an effective nursing intervention to decrease fatigue and increase sleep in patients with breast neoplasm undergoing chemotherapy.