• 한국어병학회지
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• 제20권2호
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• pp.109-117
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• 2007

본 연구에서는 국내 연구보고는 아직 없는 실정이나 양식터봇의 연쇄구균 병원체로 보고 된 바가 있는 제주 양식넙치에서 분리되는 γ 용혈성의 연쇄구균인 Streptococcus parauberis의 특성을 제시하고자 하였다. S. parauberis에 대한 분리균주의 탄소원을 기질로 이용하는 특성은 Annette and Collllins (1990)가 보고한 결과와 유사하였다.또한 분리된 균주들을 계통분류학적 분석 결과 Accesion number AY584477 하나의 그룹으로 묶였지만 S. iniae와는 다른 그룹으로 묶였다. 그러나 Collins가 Streptococcus iniae (X58306)와 S. parauberis (X89967)이 한 그룹으로 묶인다고 발표한 것과는 다른 결과를 나타냈다. 16S rRNA gene에 대한 염기서열 분석 결과는 S. parauberis (AY942572)와 98%이상의 상동성을 나타내어 S. parauberis로 동정하였다. S. parauberis는 S. uberis type Ⅱ로 분류되었으나 Williams and Collins (1990)에 의해서 S. parauberis라는 종명이 제시되었다. 이러한 결과로 볼 때 제주도 양식넙치의 연쇄구균증 병원체로 S. parauberis로 판단되나 이번 실험에서 감염실험이 수행되지 않아 앞으로 본 병원체에 대한 감염 실험과 병리학적인 연구가 필요하다고 사료되어진다.

• 여성건강간호학회지
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• 제16권1호
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• pp.60-68
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• 2010

Purpose: This study determined the effect of head and neck massage on anxiety, pain, and discomfort for hysterectomy patients. Methods: Subjects consisted of 48 hysterectomy patients at K hospital. Experimental group (n=23) received head and neck massage at 8 minutes per massage for five times: (at admission, before sleeping on preoperative day, at 4 hours after operation, before sleeping on operation day, before sleeping on the first postoperative day). Control group (n=25) received conventional treatment. As an effectiveness of this intervention, state of anxiety and BP was measured before sleeping on preoperative day. Pain and discomfort were measured before sleeping on the day of surgery and then on the first postoperative day. Data was analyzed descriptive statistics using $x^2$ test, Fisher's exact test, paired t-test, unpaired t-test, repeated measures ANOVA and Bonferroni multiple comparison. Results: 1. State of anxiety score and BP at post-treatment decreased significantly in the experimental group. 2. Pain score in experimental group was lower than that in control group, with no significant difference; whereas, 3. Discomfort level decreased significantly in the experimental group. Conclusion: Results indicate that head and neck massage could be an effective intervention for reducing preoperative anxiety and postoperative discomfort in hysterectomy patients.

• 에너지공학
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• 제13권4호
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• pp.242-258
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• 2004

한국원자력연구소에서는 기존의 일체형 가연성 독봉과 다른 이중구조로 된 가연성독봉 개념을 제시하였다. 이중구조 가연성독봉(Erbia Duplex BP)은 내부에 Natural U+Gd$_2$O$_3$, 외부에는 Enriched $UO_2$+Er$_2$O$_3$를 배열시킨 구조이다. 이러한 독봉은 장주기 노심에서 기존의 Gadolinia BP과 동일한 반응도제어를 할 수 있을 것이라 예상된다. 이중구조 가연성독봉의 핵적 타당성을 확인하기 위해 24개월 주기용 한국표준형원자로를 비교대상으로 선정하였으며, 기존 연구된 여러 가지 독봉설계안들과 4가지 핵특성에 대하여 비교 분석하였다. 핵특성 평가 결과, 이중구조가연성 독봉은 비교대상보다 무한증배계수, 첨두봉출력인자, 반응도억제가, 감속재온도계수측면에서 모두 유리한 경향을 보였다. 설계변수에 따른 민감도분석을 통해 도출한 최적화된 핵연료집합체를 이용하여 노심적용 타당성을 확인하였다. 주기길이, 첨두출력 및 감속재온도 계수를 비교하였으며 전 노심해석결과 주기길이가 비고대상보다 4-7일 길게 나타났다. 이러한 결과는 등가의 독봉집합체를 설계했음에도 불구하고 노심에 장전되는 우라늄의 양이 서로 달라서 생기는 현상으로 판단된다. 하지만 전체적인 핵특성을 비교해보면 이중구조 가연성독봉을 장전한 노심이 비교대상노심보다 다소 유리하면서도 거의 비슷함을 알 수 있었다. 마지막으로 경제성 평가를 통해 장주기 노심에서의 이중구조 가연성독봉의 제조 가능성 및 적용 타당성이 충분히 확인되었다.

• 한국건설순환자원학회논문집
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• 제10권4호
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• pp.569-576
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• 2022

본 연구에서는 유·무기계 자기치유재료를 기반으로 박테리아 펠렛과 고상캡슐을 각각 혼입하여 사용한 하이브리드 자기치유 콘크리트의 치유성능을 조사하였다. 치유성능 평가방법으로 정수위 투수시험을 적용하였으며, 평가지표로 치유율과 등가균열폭에 의해 산출된 치유된 균열폭을 활용하였다. 정수위 투수시험 결과 초기 균열폭이 0.3 mm일 때 MC-BP와 MC-SC의 치유율은 MC와 비교하여 2.1~3.0 %pt 높았으며, 하이브리드 콘크리트의 치유된 균열폭은 0.017~0.018 mm 증가하였다. 결론적으로, 두 가지 치유소재를 함께 사용하더라도 자기치유 성능은 크게 향상되지 않은 것으로 나타났다.

• Composites Research
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• 제29권4호
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• pp.161-166
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• 2016

본 연구에서는 습식초지법을 이용하여 탄소나노튜브 버키페이퍼를 제조하고 고강도, 고강성 그리고 유연성을 증대시키기 위하여 폴리우레탄(PU)의 점도를 조절하여 코팅제조한 후 기계적 특성에 미치는 영향에 대하여 살펴보았다. Raman, TGA, PL, SEM, TEM 그리고 Tensile test을 이용하여 SWNTs, SWNTs-buckypaper(SWNTs-BP), 그리고 SWNTs-BP/PU 나노복합필름에 대한 구조 및 물성을 평가하였으며 복합필름단면은 전계방사 주사전자현미경(FE-SEM)을 사용하여 관찰한 후 물성증대원인을 해석하였다. 특히, 5 wt%의 PU 용액으로 코팅할 때 튜브간의 계면 접착력 증가로 최종 물성향상에 기여하였다. 최종적으로 이러한 구조적인 특성을 이용할 경우 초경량, 고강도 나노복합소재를 제조하는데 기여할 것으로 기대된다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권14호
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• pp.6155-6158
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• 2015

Background: The human leukocyte antigen-G (HLA-G) gene is highly expressed in cancer pathologies and is one strategy used by tumor cells to escape immune surveillance. A 14-bp insertion/deletion (InDel) polymorphism of the HLA-G gene has been suggested to be associated with HLA-G mRNA stability and the expression of HLA-G. The aim of present study was to assess any genetic association between this polymorphism and breast cancer among Iranian-Azeri women. Materials and Methods: In this study 227 women affected with breast cancer, in addition to 255 age-sex and ethnically matched healthy individuals as the control group, participated. Genotyping was performed using polymerase chain reaction and electrophoresis assays. The data were compiled according to the genotype and allele frequencies, compared using the Chi-square test. Statistical significance was set at P<0.05. Results: In this case-control study, no significant difference was found between the case and control groups at allelic and genotype levels, although there is a slightly higher allele frequency of HLA-G 14bp deletion in breast cancer affected group. However,when the stage I subgroup was compared with stage II plus stage III subgroup of affected breast cancer, a significant difference was seen with the 14 bp deletion allele frequency. The stage II-III subgroup patients had higher frequency of deletion allele (57.4% vs 45.8%) than stage I cases (${\chi}^2=4.16$, p-value=0.041). Conclusions: Our data support a possible action of HLA-G 14bp InDel polymorphism as a potential genetic risk factor for progression of breast cancer. This finding highlights the necessity of future studies of this gene to establish the exact role of HLA-G in progression steps of breast cancer.

• Journal of Preventive Medicine and Public Health
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• 제34권4호
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• pp.437-443
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• 2001

Objectives : This study was peformed to assess the association between the social support and blood pressure(BP) in a rural community. Methods : A cross-sectional survey, comprising a health examination including BP, height and weight and a questionnaire-based interview which investigated social support, demographic factors, smoking, drinking, and etc. was peformed between February 10th and March 5th, 1998. The survey included 318 persons who were over than 30-year-old in the rural community of Kwangju, Republic of Korea. We excluded persons who taking antihypertensive medications or who provided incomplete information; we subsequently analyzed the data from 284 persons. In order to test the hypothesis of an association between BP and social support controlling confounders such as age, educational level, working time, body mass index, smoking and drinking, the data was analyzed using multiple linear regression analysis. Results : The subjects were composed of 109(38.4%) males and 175(61.6%) females with mean ages of 62.0 years and 61.1 years, respectively. The hypertension prevalence was 41.3% among males and 45.1% among females. In the correlation analysis, higher total social support scores correlated significantly with lower systolic BP in both males and females. The hypertension prevalence increased significantly with the decreasing of the social support in males. In multiple regression analysis, systolic and diastolic blood pressure showed a negative association with social support in both males and females, although this was not statistically significant. Conclusions : Larger and broader studies are required in the future in order to identify the association between the social support and BP.

• Food Science and Biotechnology
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• 제17권6호
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• pp.1240-1245
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• 2008

Kimbab is the most popular ready-to-eat (RTE) food in Korea. A rapid detection method based on multiplex PCR technique was developed for detection of major food-borne pathogens like Salmonella spp., Shigella spp., Bacillus cereus, Listeria monocytongenes, and Staphylococcus aureus. Specific bands were obtained as 108 bp (Sau, S. aureus), 284 bp (Sal, S. enterica, S. enteritids, and S. typhmurium), 404 bp (Lmo, L. monocytogenes), 475 bp (Bce, B. cereus), and 600 bp (Shi, S. flexineri and S. sonnei). Visible cell numbers varied from 4.14-5.03, 3.61-4.47, and 4.10-5.11 log CFU/g in randomly collected June, July, and August samples, respectively. Among the 30 kimbab samples obtained 83.3% samples were contaminated and 16.7% samples were free from contamination. The highest rate of contamination was with S. aureus (56.7%) followed by B. cereus (43.3%), Salmonella spp. (36.7%), Shigella spp. (13.3%), and L. monocytogenes (6.7%). The identification of the pathogenic species could be faster using one polymerase chain reaction (PCR) and the ability to test for food-borne pathogenic species in kimbab will save time and increase the ability to assure its quality.

• 한국환경과학회지
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• 제24권12호
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• pp.1673-1679
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• 2015

This study was conducted to investigate the effects of fruit set internode on the germination of watermelon seeds. Generally fruits setted in higher than 20 internode were high percent of germination, fruit setted in low internode(5-10) is low. The higher fruit-set internode, fruit weight was significantly increased, but 1,000 seed weight was decreased the more fruit set internode. However number of seed was about 300 seeds irrespective of fruit-set internode. Investigating viability of seed by BP test, general percent germination was recorded highest at 5 flower cluster above 20 internode of fruit-set internode. In contrast, condition of fruit setted on 3, 4, 6 flower cluster were high percent of germination, regarded as unnormal germination not to be as normal seedling by 2~3%. Seed harvested at 5 flower-cluster had high viability on hypocotyl height and diameter of seedling through early growth test, but were not significant. Therefore 5 flower-cluster was optimum fruit-set internode to obtain high-quality seed.

• 대한간호학회지
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• 제35권5호
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• pp.943-954
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• 2005

Purpose: The purpose of this study was to identity the effects of a health promotion program for rural elderly on health promotion lifestyle and health status. Method: The study was a nonequivalent control group pre-post experimental design. Data collection was performed from April 12th, 2003 to August 2nd, 2003. The subjects were selected at Mari Myun Geochang Gun in Korea. 44 elders were in the experimental group and 45 elders were in the control group. The 16-week health promotion program was given to the experimental group. Data was analyzed by descriptive statistics, $x^2$-test, t-test, and ANCOV A test with SPSS/Win 10.0 program. Result: The experimental group showed higher scores of a health promotion lifestyle and perceived health status than the control group. In addition, systolic BP, heart rate, body fat and glucose of the experimental group were lower than the control group. Waist flexibility, left hand grip power, back strength and leg strength of the experimental group were higher than the control group. However, there were no significant differences in diastolic BP, total cholesterol and right hand grip power between the two groups. Conclusion: This health promotion program for rural elderly can be recommended as an effective nursing intervention in rural communities.