• 농업과학연구
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• 제48권3호
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• pp.527-534
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• 2021

This study investigated the possibility of performing selection using 30-month carcass traits by estimating the genetic parameters of 24- and 30-month carcass traits. Data used in this study were the carcass traits of 13,151 heads slaughter at the age of 24 and 30 months. As a result of the study, the heritability of backfat thickness, carcass weight, eye muscle area and marbling score at 24 months of age were estimated to be 0.588, 0.354, 0.467 and 0.587, respectively. The heritability of backfat thickness, carcass weight, eye muscle area and marbling score at 30 months of age were estimated to be 0.498, 0.577, 0.505 and 0.530, respectively. The ranking correlation was 0.516 between the carcass selection indices of 24 and 30 months of age. By providing a 30-month selection index, it is possible to use semen suitable for farm profits, and more semen information can be provided to farms than previously. Furthermore, studies on a selection index based on 30-month carcass traits are needed to provide highly accurate information.

• 융합정보논문지
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• 제11권12호
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• pp.59-69
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• 2021

본 연구는 간호대학생을 대상으로 전공선택 동기가 진로결정 자기효능감과 전공만족도에 미치는 영향을 파악하고자 하였다. 경남 J시의 일개 대학의 간호대학생 3-4학년 300명을 대상으로 설문조사를 하였다. 최종 285부를 SPSS 25.0 프로그램으로 분석하였으며 결과는 다음과 같다. 대상자의 일반적 특성에 따른 진로결정 자기효능감은 본인 성격과 학교만족도가 유의한 차이가 있으며, 전공만족도는 학교만족도에 따라 유의한 차이가 있었다. 전공선택 동기, 진로결정 자기효능감, 전공만족도는 모두 유의한 정(+)의 상관관계가 있는 것으로 나타났다. 또한, 전공선택 동기의 내재적 동기와 외재적 동기가 진로결정 자기효능감과 전공만족도에 미치는 영향을 분석한 결과 모두 유의한 정(+)의 영향을 미치는 것으로 나타났다. 그러나 전공만족도의 하위요소를 구분하여 전공선택 동기의 영향을 검정한 결과, 교과만족과 인식만족은 내재적 동기와 외재적 동기 모두 유의하였으나 관계만족은 내재적 동기만 유의하였다. 따라서 간호대학생의 전공선택 동기를 높여 진로결정 자기효능감과 전공만족도를 높일 수 있는 전략이 필요할 것이다.

• 의학교육논단
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• 제5권1호
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• pp.1-8
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• 2003

• 대한두경부종양학회:학술대회논문집
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• 대한두경부종양학회 2001년도 제17차 학술대회 및 제6차 심포지움
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• pp.100-100
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• 2001

• 열처리공학회지
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• 제17권5호
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• pp.307-312
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• 2004

• 대한약학회:학술대회논문집
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• 대한약학회 2002년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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• pp.79-80
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• 2002

• Clinical Endoscopy
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• 제56권5호
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• pp.592-593
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• 2023

• 대한치과기공학회지
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• 제31권2호
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• pp.15-22
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• 2009

This study examined and analyzed the demographical characteristics of the study target and their expectancy level on the factors in selecting dental medical institutes (basic elements of dental clinics, traffic convenience, physical environment of dental clinic and explicit qualification of dentist) with the questionnaire survey method with 222 questionnaires answered and returned (return rate 88.8%) out of 250 copies distributed to the 1st, 2nd and 3rdyear college students attending technical colleges located in Cheongwon-Gun, Chungbuk, Korea from March 26 to April 7, 2009. The results of this study are as follows: 1. The demographical characteristics of the study target group consisting of 225 college students include 92.3% of age 20s (205 students); 123 males (55.4%) and 99 females (44.6%); the number of those who had at least one experience to visit dental clinic was 199 (89.6%) and 23 (10.4%) of those with no-visiting experience. 2. The descriptive statistics for the selection factor showed that basic elements, traffic convenience, physical environment and explicit qualification of dentist were regarded important as in order. In particular, the factors considered in selecting dental clinic was ordered from most to least in their importance beginning with cleanness of dental clinic as the most important factor, dentist's trustworthiness, kindness of medical staffs, low medical fee, dentist's knowledge level, modernized medical equipments and convenience in using medical facilities as the least. On the contrary, brand name of dental clinic, age, college, sex and appearance of dentist were rated low in order in terms of their importance in selecting dental clinic. 3. As for the difference in the selection factors across demographical characteristics, while male students placed importance on traffic convenience and physical environment of dental clinic, female students placed more importance on dentist's qualification and basic elements of dental clinic. With respect to the difference in the selection factors across the visiting experiences, while those with visiting experience regard traffic convenience more importantly, those without visiting experience regarded physical environment of dental clinic, dentist's qualification and basic elements of dental clinic. 4. In terms of pearson correlation coefficient, the result showed that all aspects in selecting dental clinic were positively correlated. Particularly, the correlation between physical environment of dental clinic and dentist's explicit qualification were correlated highest. Significant positive correlations were found high in traffic convenience, physical environment of dental clinic, dentist's explicit qualification and basic elements of dental clinic in order.

• Reproductive and Developmental Biology
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• 제38권2호
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• pp.71-77
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• 2014

The specific genetic modification in porcine somatic cells by gene targeting has been very difficult because of low efficiency of homologous recombination. To improve gene targeting, we designed three kinds of knock-out vectors with ${\alpha}1,3$-galactosyltransferase gene (${\alpha}1,3$-GT gene), DT-A/pGT5'/neo/pGT3', DT-A/NLS/pGT5'/neo/pGT3' and pGT5'/neo/ pGT3'/NLS. The knock-out vectors consisted of a 4.8-kb fragment as the 5' recombination arm (pGT5') and a 1.9-kb fragment as the 3' recombination arm (pGT3'). We used the neomycin resistance gene (neo) as a positive selectable marker and the diphtheria toxin A (DT-A) gene as a negative selectable marker. These vectors have a neo gene insertion in exon 9 for inactivation of ${\alpha}1,3$-GT locus. DT-A/pGT5'/neo/pGT3' vector contain only positive-negative selection marker with conventional targeting vector. DT-A/NLS/pGT5'/neo/pGT3' vector contain positive-negative selection marker and NLS sequences in upstream of 5' recombination arm which enhances nuclear transport of foreign DNA into bovine somatic cells. pGT5'/neo/pGT3'/NLS vector contain only positive selection marker and NLS sequence in downstream of 3' recombination arm, not contain negative selectable marker. For transfection, linearzed vectors were introduced into porcine ear fibroblasts by electroporation. After 48 hours, the transfected cells were selected with $300{\mu}g/ml$ G418 during 12 day. The G418-resistant colonies were picked, of which 5 colonies were positive for ${\alpha}1,3$-GT gene disruption in 3' PCR and southern blot screening. Three knock-out somatic cells were obtained from DT-A/NLS/ pGT5'/neo/pGT3' knock-out vector. Thus, these data indicate that gene targeting vector using nuclear localization signal and negative selection marker improve targeting efficiency in porcine somatic cells.

• 한국콘텐츠학회논문지
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• 제21권2호
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• pp.374-385
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• 2021

본 연구의 목적은 학생부종합전형의 평가 요소와 기준에 대한 고등학교 교사와 학부모의 인식을 살펴보고 이를 통해 학생 역량을 보다 공정하고 정확하게 측정할 수 있는 대입 전형 개발의 기초 자료를 제공하는 것이다. 이를 위해 전국의 고등학교 교사 102명과 고등학생 자녀를 갖고 있는 68명의 학부모를 대상으로 온라인 설문을 실시하였다. 온라인 설문지는 J대학의 학생종합전형 기준을 바탕으로 제작되었으며, 크게 '서류평가', '면접평가', '기초설문'의 3영역으로 구성하였다. 이를 통해 얻은 결과는 다음과 같다. 첫째, 교사와 학부모 모두 학생생활기록부 중심의 학생부종합전형이 2015 개정 교육과정 운영의 활성화에 기여할 수 있는 대입전형이라고 응답하였다. 둘째, 교사와 학부모 모두 인성, 적성, 잠재력 모두 서류 평가와 면접 평가에서 중요한 요소라고 응답하였다. 셋째, 2015 개정 교육과정 활성화를 위해 학생부종합전형이 계속 유지되어야 하나 해당 전형의 공정성 확보가 선행되어야 함을 지적하였다. 마지막으로 연구 결과를 토대로 대입 전형 개선을 위한 제언을 제시하였다.