• Asian-Australasian Journal of Animal Sciences
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• 제26권6호
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• pp.766-771
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• 2013

The purpose of this study was to investigate interaction effects of genes using a Harvester method. A sample of Korean cattle, Hanwoo (n = 476) was chosen from the National Livestock Research Institute of Korea that were sired by 50 Korean proven bulls. The steers were born between the spring of 1998 and the autumn of 2002 and reared under a progeny-testing program at the Daekwanryeong and Namwon branches of NLRI. The steers were slaughtered at approximately 24 months of age and carcass quality traits were measured. A SNP Harvester method was applied with a support vector machine (SVM) to detect significant SNPs in the CCDC158 gene and interaction effects between the SNPs that were associated with average daily gains, cold carcass weight, longissimus dorsi muscle area, and marbling scores. The statistical significance of the major SNP combinations was evaluated with $x^2$-statistics. The genotype combinations of three SNPs, g.34425+102 A>T(AA), g.4102636T>G(GT), and g.11614-19G>T(GG) had a greater effect than the rest of SNP combinations, e.g. 0.82 vs. 0.75 kg, 343 vs. 314 kg, 80.4 vs $74.7cm^2$, and 7.35 vs. 5.01, for the four respective traits (p<0.001). Also, the estimates were greater compared with single SNPs analyzed (the greatest estimates were 0.76 kg, 320 kg, $75.5cm^2$, and 5.31, respectively). This result suggests that the SNP Harvester method is a good option when multiple SNPs and interaction effects are tested. The significant SNPs could be applied to improve meat quality of Hanwoo via marker-assisted selection.

• Journal of Acupuncture Research
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• 제27권2호
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• pp.115-121
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• 2010

Objectives : Based on a national sample survey, we present an analysis of the current situation in the use of moxibustion therapeutics by qualified medical practitioners in Korea. Methods : The survey population of 11,737 hospitals is stratified by administrative regions, and 331 of them are randomly selected from the list of hospitals. The same number of Korean medical doctors is interviewed under the computer-assisted telephone interviewing(CATI) system. The bound on the error of estimation is ${\pm}\;5.0%$ point. Results : Of the 331 Korean medical doctors surveyed, 69% have used moxibustion therapy for remedial treatment. About half of those doctors have employed the therapy for their patients over 30%. The average number of acupuncture points per treatment using the therapy mostly ranges 1 between 5. The percent of practitioners, who have the number of average minutes less than 20 in treatment, is 74%. The number of practitioners who primarily use modified moxibustion is 4 times as many as that of those using traditional moxibustion. Conclusions : Considering the survey results, if the laser heater, alternative to conventional moxibustion, which not only gives high thermal effect but also reduces both the users inconvenience and side effects, are developed, it may benefit more patients as well as Korean medical doctors.

• 한국학교수학회논문집
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• 제4권2호
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• pp.1-9
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• 2001

Since the computer is becoming more and more indispensible tool in every fields of the modern society, it is needed and desirable to utilize the computer as a basic tool from the very early stage of the education process. Recently Maple is gaining its popularity as a comprehensive mathematical software with its power of symbolic calculations and graphics as well as its great numerical computational ability. We demonstrate the suitability of this software as a tool for the mathematical education and presents several examples of the applications of Maple. For the middle and the high school mathematics courses, we give the application examples for the quadratic functions and their graphs, statistics, the three dimensional shapes, algebraic problems. Through the examples, we confirm that mathematical education can be much more effective and simple by using Maple. If we establish computer-assisted mathematical classes, we can draw more attention and excitement from the attendants than traditional classes and eventually improve more rapidly their problem-solving ability On the other hand, the excess of the computer-aided education give to obstacle of psychological, not to be passing over the fact.

• 대한가정학회지
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• 제37권5호
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• pp.123-136
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• 1999

The purpose of this study was to suggest a future senior housing plan by examining the preference of aged women in urban areas. The subjects were 465 elderly women in Seoul and statistics employed for the analysis were frequencies, means, Chi-square test, multiple regression analysis. Results were as follows : The respondents prefered senior housing located in suburbs. The most important locational factors were accessibility to garden and the aged women wanted living 20 minutes apart by walking or driving from their children's house. There was a tendency of moving toward three-generation house sharing kitchen and enterence with their children or assisted living which cared by warden as they get senile -living alone, poor income and poor health condition-.

• Ocean Systems Engineering
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• 제12권4호
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• pp.413-437
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• 2022

An innovative concept for wet-transportation and stepwise installation of mono-bucket foundation for 15 MW offshore wind turbine is proposed. Case studies for two different mono-bucket and wrap-buoy dimensions are conducted and their hydrostatic and hydrodynamic performances are compared for both wet-towing and lowering operations. The intact stability and transient responses are analyzed in detail for various stages of lowering operation. Wave-induced motion statistics during wet tow in sea state 4 (highest operational window) are checked. The proposed concept is found to be feasible and can be an alternative cost-effective solution without using heavy-lift crane vessel in practice.

• Journal of Korean Biological Nursing Science
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• 제22권3호
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• pp.176-183
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• 2020

Purpose: : The purpose of this study was to evaluate the intrauterine insemination (IUI) success rate and to define the variables for predicting success. Methods: The secondary data analysis was used with data collected from infertile females who underwent IUI in Fertility and IVF (In Vitro Fertilization) clinics, who benefited from the 'National Medical-aid Program for ART (assisted reproductive technology) in 2016', in which the data of 34,920 IUI cases were retrospectively reviewed. The primary outcome measure was the clinical pregnancy rate in elderly and young infertile females. Data were analyzed by descriptive statistics, χ2 test and logistic regression. Results: The pregnancy rate was 12.1% (2,095 cases) in elderly infertile females and 15.6% in young infertile females (2,758 cases) (χ2 = 87.90, p< .001). Using the logistic regression analysis, clinical pregnancy was positively associated with the ovulatory factor (OR= 1.48, p< .001) and male factor (OR= 1.19, p< .05) in elderly infertile females. It was positively associated with the ovulatory factor (OR= 1.30, p= .001) and the peritoneal cavity factor (OR= 0.58, p< .05) in young infertile females. Conclusion: Our results indicate that the pregnancy rate in young infertile females was higher than that in old infertile females, and the IUI is the effective option in pregnancies in all ages with infertility due to the ovulatory factor. Additionally, further studies are necessary to fully describe pregnancy experiences for all the infertile females.

• Journal of Gastric Cancer
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• 제15권1호
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• pp.29-38
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• 2015

Purpose: Before expanding our indications for laparoscopic gastrectomy to advanced gastric cancer and adopting reduced port laparoscopic gastrectomy, we analyzed and audited the outcomes of laparoscopy-assisted distal gastrectomy (LADG) for adenocarcinoma; this was done during the adoptive period at our institution through the comparative analysis of short-term surgical outcomes and learning curves (LCs) of two surgeons with different careers. Materials and Methods: A detailed comparative analysis of the LCs and surgical outcomes was done for the respective first 95 and 111 LADGs performed by two surgeons between July, 2006 and June, 2011. The LCs were fitted by using the non-linear ordinary least squares estimation method. Results: The postoperative morbidity and mortality rates were 14.6% and 0.0%, respectively, and there was no significant difference in the morbidity rates (12.6% vs. 16.2%, P=0.467). More than 25 lymph nodes were retrieved by each surgeon during LADG procedures. The LCs of both surgeons were distinct. In this study, a stable plateau of the LC was not achieved by both surgeons even after performing 90 LADGs. Conclusions: Regardless of the experience with gastrectomy or laparoscopic surgery for other organs, or the age of surgeon, the outcome was quite acceptable; the learning process differ according to the surgeon's experience and individual characteristics.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2010년도 춘계학술대회
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• pp.295-298
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• 2010

리서치 시스템에 적용하는 설문조사의 종류에는 전화조사, 온라인조사, 면접조사 등의 방법론이 있다. 현재 국내에서의 리서치 조사방법의 실태는 수작업 상태로 자료를 수집, 검증하고 일부만이 IT를 응용한 반자동화된 시스템을 해외에서 수입하여 사용하고 있다. 본 논문은 글로벌 표준화를 위한 연계 리서치 시스템에 관한 연구이다. 제안 시스템은 국내 여건에 최적화시킨 커스터마이징을 통하여 전화조사, 온라인조사, 면접조사를 전문 인력뿐만 아니라 일반 사용자까지도 쉽고, 빠르게 설문지를 입력할 수 있으며 컴퓨터처리에 의한 결과 데이터를 정확하고 신속하게 고객에게 전달 할 수 있는 서비스 체제를 구현하였다. 특히 본 시스템은 자료입력과 수집의 단계를 기반으로 데이터 분석 및 가공에 필요한 분석과 통계 기능 제공과 오피스 프로그램 및 고급 통계 프로그램인 SPSS와의 호환성을 부가하여 리서치 운영 프로세스의 효율화를 달성하였다. 제안 시스템은 부가적으로 국산화를 통한 수입대체 효과와 함께 리서치 분야의 글로벌 표준으로 제시하기 위하여 설계하고 구현하였다.

• 대한간호학회지
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• 제54권1호
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• pp.59-72
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• 2024

Purpose: This cross-sectional study aimed to identify factors influencing the intention for continual fertility treatments among women undergoing assisted reproductive technology (ART). Methods: A total of 197 women were recruited through convenience sample from fertility hospitals in Gyeonggi-do and Busan, South Korea. Data were collected using a self-report questionnaire incorporating measures of uncertainty; Depression Anxiety Stress Scales; Fatigue Severity Scale; Coping Scale for Infertility-Women; spousal support; treatment environment; and intention for continual fertility treatment. Descriptive statistics, chi-square tests, t-tests, and logistic regression analysis were conducted using IBM SPSS 26.0. Results: As many as 70.6% of the participants expressed an intention for continual fertility treatments. Logistic regression analysis revealed that factors such as uncertainty (odds ratio [OR] = 0.44, 95% confidence interval [CI] 0.20~0.95), active coping (OR = 4.04, 95% CI 1.11~14.71), treatment environment (OR = 2.77, 95% CI 1.26~6.07), and the duration of marriage (OR = 2.61, 95% CI 1.24~5.49) were significantly related with this intention. Conclusion: These findings underscore the significance of uncertainty management, having proactive coping strategies, having supportive treatment environments, and considering the duration of marriage concerning women's intention for continual fertility treatment in the context of ART. The implications of these results extend to the development of nursing intervention programs aimed at providing crucial support for women undergoing ART and seeking to continue their infertility treatment.

• 한국지역지리학회지
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• 제5권1호
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• pp.163-185
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• 1999

중등 지리과에서의 구성주의적 멀티미디어 활용 수업의 모형 개발과 효과 분석을 위하여 개발 및 실험 연구를 병행하였다. 구성주의적 멀티미디어 활용 수업(CMAI)의 개념적 및 절차적 모형은 구성주의적 수업 이론과 멀티미디어, PIDA 수업 전략을 기반으로 한다. 구성주의적 멀티미디어 활용 수업은 오프라인 수업(offline CMAI)과 온라인 수업(online CMAI)으로 유형화할 수 있다. 오프라인 수업은 다시 프리젠테이션 활용 수업(P/TCMAI)와 CD-ROM 활용 수업(C/RCMAI)으로 구분할 수 있다. CD-ROM 활용의 오프라인 수업 유형별(강의 수업, 집단 교수, 개별 학습, 협동 학습) 효과 분석을 위해서 '한국의 하천과 평야'에 관한 CR-ROM 형태의 오프라인 코스웨어를 개발 적용하였다. 오프라인 수업 유형별 학업 성취도 및 수업 반응도에 대한 변량 분석 결과에 의하면 학업 성취도에서는 수업 유형간에 유의미한 차이가 발생하지 않았으나, 수업 반응도에서는 유의미한 차이가 발생했다.