• 전기화학회지
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• 제8권3호
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• pp.130-134
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• 2005

본 연구에서는 그동안 전기화학적으로 합성되지 못했던 III-V족 화합물 반도체 InSb를 구연산 용액으로부터 합성하였으며 자체 제조한 AAO를 나노템플릿으로 이용하여 정전압 도금을 실시하여 InSb 나노와이어를 제조하였다 제조된 InSb나노와이어는 X선 회절분석 결과 단결정의 나노와이어는 아니었으나 정확하게 화학양론을 만족시키는 화합물임을 확인하였고, 평판 박막 상태의 InSb와는 달리 나노와이어의 길이방향으로 (220) 방향의 결정이 주로 성장하는 우선결정방위를 가지고 있음을 알 수 있었다. 또한 집합적으로 배열된 상태에서 측정된 I-V특성 곡선에서는 n형 반도체의 특성을 보이되 밴드갭이 좁고, 전자이동도가 큰 InSb고유의 특성상 반금속과 유사한 전기적 특성을 보유하고 있음을 확인하였다.

• Safety and Health at Work
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• 제7권1호
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• pp.78-82
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• 2016

Background: Little is known about the effects of premenstrual syndrome (PMS) on work-related quality of life in nurses. We aimed to investigate the effect of PMS on work-related quality of life in Turkish nurses. Methods: A total of 134 volunteer nurses were included in this cross-sectional study between January 2015 and March 2015. One hundred and thirty-four nurses completed a questionnaire regarding demographic data, the Premenstrual Syndrome Scale (PMSS), and the Work-Related Quality of Life Scale (WRQoL). The nurses were classified as having or not having premenstrual syndrome according to the PMSS. Results: The average age was $29.5{\pm}7.1years$ and the prevalence of PMS was 38.1%. The total score of PMSS was significantly negatively correlated with the overall score (r = -0.341; p < 0.001) and all subscale scores of the WRQoL and ranged from -0.207 to -0.402 (p < 0.05 for all). All of the WRQoL subscale scores except stress at work (p = 0.179) in nurses with PMS were significantly lower than those of nurses without PMS (p < 0.05). The age (${\beta}=-0.258$; p = 0.021) and PMSS total score (${\beta}=-0.314$; p < 0.001) increment negatively; however, optimistic thinking (${\beta}=0.228$; p = 0.008) positively affected overall WRQoL score. Conclusion: Nurses with PMS have decreased levels of work-related quality of life in their professional lives. Methods to help cope with cyclic premenstrual symptoms may be used, and as a result, productivity and work-related quality of life may increase.

• 한국비블리아학회지
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• 제34권3호
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• pp.109-134
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• 2023

본 연구의 목적은 과학기술분야 연구기관에서 운영되는 기관 연구데이터 리포지터리 운영 현황을 파악하고 활성화 방안을 제시하는 것에 있다. 이를 위해 문헌 연구와 사례 분석, 국내외 기관 리포지터리 담당자와의 인터뷰를 수행하였으며, 리포지터리 규정 및 정책 수립, 연구데이터 공유 인식 개선, 연구데이터 품질 관리 강화를 골자로 하는 기관 연구데이터 리포지터리 운영 활성화 방안을 제안하였다. 첫째, 리포지터리 규정 및 정책 수립 측면에서는 현재 연구데이터와 관련한 규정인 국가연구개발정보 처리기준의 지위 향상과 리포지터리 근거 규정의 명시가 필요하다고 보았다. 둘째, 연구데이터 공유 인식 개선 측면에서 전반적인 연구데이터 교육과 우수 사례 발굴의 필요성을 제안하였다. 셋째, 연구데이터 품질 관리 강화 측면에서 연구자-담당자-위원회의 상호작용과 표준화 작업, 장기 보존을 위한 준비의 필요성을 제안하였다.

• 한국간담췌외과학회지
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• 제27권3호
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• pp.251-257
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• 2023

Backgrounds/Aims: This is a retrospective analysis of whether the 8th edition American Joint Committee on Cancer (AJCC) was a significant improvement over the 7th AJCC distal extrahepatic cholangiocarcinoma classification. Methods: In total, 111 patients who underwent curative resection of mid-distal bile duct cancer from 2002 to 2019 were included. Cases were re-classified into 7th and 8th AJCC as well as clinicopathological univariate and multivariate, and Kaplan-Meier survival curve and log rank were calculated using R software. Results: In patient characteristics, pancreaticoduodenectomy/pylorus preserving pancreaticoduodenectomy had better survival than segmental resection. Only lymphovascular invasion was found to be significant (hazard ratio 2.01, p = 0.039) among all clinicopathological variables. The 8th edition AJCC Kaplan Meier survival curve showed an inability to properly segregate stage I and IIA, while there was a large difference in survival probability between IIA and IIB. Conclusions: The 8th distal AJCC classification did resolve the anatomical issue with the T stage, as T1 and T3 showed improvement over the 7th AJCC, and the N stage division of the N1 and N2 category was found to be justified, with poorer survival in N2 than N1. Meanwhile, in TMN staging, the 8th AJCC was able differentiate between early stage (I and IIA) and late stage (IIB and III) to better explain the patient prognosis.

• Journal of Cerebrovascular and Endovascular Neurosurgery
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• 제26권1호
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• pp.11-22
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• 2024

Objective: To perform a systematic review and meta-analysis evaluating the efficacy of middle meningeal artery embolization in terms of both clinical and radiographic outcomes, when performed with different embolic agents. Methods: A systematic literature review and meta-analysis was performed to evaluate the impact of embolic agents on outcomes for middle meningeal artery (MMA) embolization. The use of polyvinyl alcohol (PVA) with or without (±) coils, N-butyl cyanoacrylate (n-BCA) ± coils, and Onyx alone were separately evaluated. Primary outcome measures were recurrence, the need for surgical rescue and in-hospital periprocedural complications. Results: Thirty-one studies were identified with a total of 1,134 patients, with 786 receiving PVA, 167 receiving n-BCA, and 181 patients receiving Onyx. There was no difference in the recurrence rate (5.5% for PVA, 4.5% for n-BCA, and 6.5% for Onyx, with P=0.71) or need for surgical rescue (5.0% for PVA, 4.0% for n-BCA, and 6.9% for Onyx, with P=0.89) based on the embolic agent. Procedural complications also did not differ between embolic agents (1.8% for PVA, 3.6% for n-BCA, and 1.6% for Onyx, with P=0.48). Conclusions: Rates of recurrence, need for surgical rescue, and periprocedural complication following MMA embolization are not impacted by the type of embolic agent utilized. Ongoing clinical trials may be used to further investigate these findings.

• 한국작물학회지
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• 제68권3호
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• pp.134-146
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• 2023

콩 역병(Phytophthora root rot, PRR)은 난균(oomycete)인 Phytophthora sojae에 의해 발생하는 콩의 주요 병 중 하나로, 배수가 잘 안 되는 밭이나 습한 토양에서 심하게 발생한다. 역병의 피해를 효과적으로 줄일 수 있는 방법은 주로 역병 저항성 품종을 재배하는 것으로, 이는 저항성 유전자 Rps (resistance to P. sojae)에 대한 연구를 중심으로 이루어진다. 본 연구는 대풍 과 천알(계통명 SS0404-T5-76)을 교배하여 구축한 RIL (recombinant inbred line) 집단을 이용하여 콩 역병 균주40468과 연관된 저항성 유전자좌를 탐색하기 위해 수행되었다. 역병 균주40468에 대한 저항성 평가는 하배축 접종(hypocotyl inoculation) 방법으로 이루어졌다. 저항성 검정 결과, 천알은 저항성,대풍은 감수성을 보였고 집단 내에서는 계통들의 표현형이 분리되는 양상을 보였다. 집단 내에서 표현형 분포는 1:1 (R:S) (χ2 = 0.57, p = 0.75) 분리비와 일치하였으며, 이는 저항성 반응이 단일 유전자에 의해 조절됨을 나타낸다. 대풍, 천알과 각 RIL 계통들은 고밀도 SNP 유전자형 분석을 통해 데이터를 얻었고, 이를 바탕으로 유전자 지도를 작성하였다. 일원분산 분석(Single-marker ANOVA) 및 linkage analysis 결과, 18번 염색체의 55.9~56.4 Mbp에서 높은 통계적 유의성을 보였으며, 이 지역의 표현형 분산은 ~98%로 나타났다. 탐색된 영역은 다수의 선행연구에서 Rps의 위치로 보고된 지역과 겹치며, 콩 표준 유전체 정보를 기반으로 0.5 Mbp 범위 내에서 leucine-rich repeat (LRR) 또는 serine/threonine kinase(STK)을 합성하는 유전자 9개를 포함하고 있다. 천알은 역병 균주40468에 대한 저항성 유전자좌가 밝혀진 첫 국내 콩 품종으로, 본 연구에서 밝힌 천알의 저항성 유전자좌는 향후 역병 저항성 육종 및 연구에서 유용한 재료가 될 것이다.

• Asian-Australasian Journal of Animal Sciences
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• 제33권10호
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• pp.1633-1641
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• 2020

Objective: The objective of this study was to develop a model for estimating the carcass weight of Hanwoo cattle as a function of body measurements using three different modeling approaches: i) multiple regression analysis, ii) partial least square regression analysis, and iii) a neural network. Methods: Data from a total of 134 Hanwoo cattle were obtained from the National Institute of Animal Science in South Korea. Among the 372 variables in the raw data, 20 variables related to carcass weight and body measurements were extracted to use in multiple regression, partial least square regression, and an artificial neural network to estimate the cold carcass weight of Hanwoo cattle by any of seven body measurements significantly related to carcass weight or by all 19 body measurement variables. For developing and training the model, 100 data points were used, whereas the 34 remaining data points were used to test the model estimation. Results: The R² values from testing the developed models by multiple regression, partial least square regression, and an artificial neural network with seven significant variables were 0.91, 0.91, and 0.92, respectively, whereas all the methods exhibited similar R² values of approximately 0.93 with all 19 body measurement variables. In addition, relative errors were within 4%, suggesting that the developed model was reliable in estimating Hanwoo cattle carcass weight. The neural network exhibited the highest accuracy. Conclusion: The developed model was applicable for estimating Hanwoo cattle carcass weight using body measurements. Because the procedure and required variables could differ according to the type of model, it was necessary to select the best model suitable for the system with which to calculate the model.

• 한국건설관리학회논문집
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• 제21권6호
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• pp.125-134
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• 2020

시공 서류에서 접하는 자연어는 당국에서 권장하는 언어와 크게 다르다. 일관성이 부족한 이러한 관행은 자동화를 통한 통합 연구를 방해하고 장기적으로 업계의 생산성을 저하시킬 것이다. 이 연구는 여러 문자열 유사성(문자열 일치) 알고리즘을 비교하여 여러 다른 방법으로 작성된 동일한 작업 이름을 인식하는 각 알고리즘의 성능을 비교하는 것을 목표로 한다. 우리는 또한 앞서 언급 한 편차가 얼마나 널리 퍼져 있는지에 대한 토론을 시작하는 것을 목표로 한다. 마지막으로, 우리는 실제로 발견된 시공 작업 이름을 형식에 비해 덜 복잡한 해당 작업 이름과 연결하는 작은 데이터 세트를 구성했다. 이 데이터 세트를 사용하여 미래의 자연어 처리 접근방식을 검증 할 수 있을 것으로 기대한다.

• Asian Pacific Journal of Cancer Prevention
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• 제16권5호
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• pp.1795-1802
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• 2015

Background: Breast cancer is one of the most common cancer types in women and is amongst the most devastating and stressful events in the life of women. The external appearance of breast cancer patients usually changes due to the surgical and/or medical therapies used. An association may be found between social support perception and social appearance anxiety in patients with breast cancer in the period after mastectomy. Therefore, this study investigated the social appearance anxiety and social support status in women with breast cancer in our country. Materials and Methods: A descriptive cross-sectional study was conducted in breast cancer patients undergoing treatment or follow-up in Medical Oncology and General Surgery departments. Results: The mean age of the participants was $51.13{\pm}8.48$ years (range, 24-74 years) with nearly half of the patients (40.6%) aged 40-50 years. Of the patients, 39.1% had stage 3 breast cancer. The mean score on Cancer Patient's Social Support Scale (CPSSS) was $134.85{\pm}9.35$, and there was a significant difference in CPSSS total scores betweena the age groups, educational levels, self-reported income levels and stage of disease (p<0.05). The mean Social Image Anxiety Scale (SIAS) score was found to be $34.30{\pm}9.35$ (min:16, max:66) in women participating in this study. The CPSSS and SIAS scores of the participants were inversely correlated, and the SIAS score was found to decrease with the increasing CPSSS score but with no statistically significant difference (r=-0.110, p=0.217). Conclusions: Social appearance anxiety is higher in the patients with poor social support.

• Journal of Nutrition and Health
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• 제34권3호
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• pp.330-337
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• 2001

The purpose of this study was to investigate the nutritional status of antioxidant vitamins in relation to serum malondialdehye(MDA) level in postmenopausal women with common occurance of cardiovascular disease(CVD). Data about general characteristics including smoking, drinking and exercise status, dietary intake and serum level of antioxidant vitamins, and serum MDA level were collected from eighty-five postmenopausal women. Mean serum MDA level was 1.62$\pm$0.03nmol/ml, and general characteristics and serum lipid profiles were not significantly different among the three group: low MDA(<1.45nmol/ml), midium MDA(1.45-1.74nmol/ml) and high MDA($\geq$1.74nmol/ml). Total mean vitamin A intake was 472.8$\pm$37.7RE, 68% of RDA, vitamin C intake was 134.3$\pm$8.7mg, 192% of RDA and vitamin E intake was 8.6$\pm$0.5mg, 86% of RDA for Korean. In takes of antioxidant vitamins from the diet were not significantly different among the three groups. However significant negative correlation(r=-0.242, p<0.05) was observed between vitamin E intake and serum MDA level in total subjects. Total mean serum vitamin A, $\beta$-carotene and vitamin C level were 0.59$\pm$0.01$\mu\textrm{g}$/ml, 0.25$\pm$0.01$\mu\textrm{g}$/ml and 9.02$\pm$0.28$\mu\textrm{g}$/ml, respectively. Total mean serum vitamin E and vitamin E/total cholesterol level were 9.15$\pm$0.42$\mu\textrm{g}$/ml and 4.09$\pm$0.17$\mu\textrm{g}$/mg, respectively. Serum antioxidant vitamins levels were not significantly different among the three groups. However serum vitamin C and E level were negatively correlated to serum MDA level. We can conclude that it will be helpful for postmenopausal women with common occurance of CVD to improve nutritional status of antioxidant vitamins by increasing intakes of antioxidant vitamins, especially vitamin C and E. (Korean J Nutrition 34(3) : 330~337, 2001)