• 한국보건간호학회지
• /
• 제11권1호
• /
• pp.26-38
• /
• 1997

This study has been done for the purpose of identifying performance of health promoting behavior and the variables affecting health promoting behavior in college students. 350 college students at D university in P city were chosen by cluster sampling. The data were collected by questionnaire from December 4 to December 20, 1996. The instruments used for this study included health promoting lifestyle, self-esteem, health locus of control and perceived health status. The data were analyzed by use of mean, ANOVA, Pearson correlation coefficient and stepwise multiple regression. The results are summarized as follows; 1. The average item score for the health promoting behavior was low at 2.49. In the sub-categories, the highest degree of performance was , 2.99, and the lowest degree was , 1.43. 2. There was no statistically significant difference between the mean for health promoting behavior of the female, 2.49 and that of the male, 2.48(t=-0.3664, p=.7143). But there was statistically significant difference among the mean for health promoting behavior classified by grade(F=3.67, p=.0126). 3. Performance of health promoting behavior was positively correlated with and , and negatively correlated with and . 4. The most important factor affecting performance of health promoting behavior was .

• Journal of Species Research
• /
• 제9권4호
• /
• pp.413-426
• /
• 2020

The Euphorbiaceae family features some of the most economically important plants that are sources of foods, oils, waxes, and medicines. The accurate identification of Euphorbiaceae species is critical in sustainable utilization of plant resources. We examined 234 sequences of nrDNA ITS, cpDNA rbcL and matK loci from 20 species in Euphorbiaceae in Korea and three outgroup taxa to develop efficient DNA barcodes. The three barcode loci were successfully amplified and sequenced for all Euphorbiaceae species. nrDNA ITS locus showed the highest mean interspecific K2P distance (0.3034), followed by cpDNA matK (0.0830), and rbcL (0.0352) locus. The degree of species resolution for individual barcode loci ranged from 75% (rbcL and matK) to 80% (ITS). The degree of species resolution was not enhanced with the different combinations of three barcode loci. The combined data set of the three loci(ITS+rbcL+matK) provided 80% of species resolution. These results confirm that ITS locus, as a single barcode, is the best option for barcoding of the Euphorbiaceae in Korea.

• 한국산학기술학회논문지
• /
• 제13권8호
• /
• pp.3521-3531
• /
• 2012

본 연구는 도시지역 거주 노인들의 자기존중감, 상태불안, 대인의존형행동특성 및 통제신념 상호간의 관련성을 알아보고 이들 요인에 영향을 미치는 관련요인들을 파악하고자 실시하였다. 조사대상은 대전광역시에 거주하고 있는 65세 이상 노인 396명(남자 182명, 여자 214명)으로 하였으며, 조사는 2011년 4월 1일부터 6월 30일까지의 기간동안에 면접조사 하였다. 연구결과, 자기존중감은 상태불안, 대인의존형행동특성과 유의한 음의 상관관계를 보였고 통제신념과는 유의한 양의 상관관계를 보였다. 상태불안은 대인의존형행동특성과 유의한 양의 상관관계를 보였고, 통제신념과는 유의한 음의 상관관계를 보였다. 대인의존형행동특성은 통제신념과 유의한 음의 상관관계를 보였다. 단계별 다중회귀분석 결과 자기존중감에 영향을 미치는 요인으로는 IADL, 배우자 유무, 저작능 상태, 건망증이 선정되었으며, 상태불안에 영향을 미치는 요인으로는 치아의 부자유 유무, IADL, 배우자유무, 주관적인 건강상태, 신체의 부자유유무, 주관적인 수면의 질, 학력이 선정되었다. 대인의존형행동특성에 영향을 미치는 요인으로는 배우자유무, IADL, 월수입, 주관적인 건강상태가 선정되었으며, 통제신념에 영향을 미치는 요인으로는 배우자유무, 시력상태가 선정되었다. 이상과 같은 결과는 조사대상 노인들의 자기존중감, 상태불안, 대인의존형행동특성 및 통제신념은 인구사회학적 특성, 건강관련행위 특성 및 건강상태 등의 여러 변수들과 유의한 관계가 있음을 시사하고 있다.

• Molecules and Cells
• /
• 제26권6호
• /
• pp.548-553
• /
• 2008

The erect habit of fruit setting is a unique characteristic of ornamental peppers and wild pepper species. The erect habit is known to be controlled by the up locus on pepper (Capsicum annuum L.) chromosome 12. The result of a genetic analysis using Saengryeog 211 (pendant), Saengryeog 213 (erect), and their $F_1$ and $BC_1$ progeny demonstrated that up is a recessive gene. To develop an up-linked marker, bulked segregant analysis (BSA) and amplified fragment length polymorphism (AFLP) were employed using 108 $F_{2:3}$ individuals. The closest AFLP marker, $A2C7_{469}$, was located at a genetic distance of 1.7 cM from the up locus and was converted into a cleaved amplified polymorphic sequence (CAPS) marker. This marker was mapped at a genetic distance of 4.3 cM from the up locus. When the CAPS was applied to seven ornamental lines and 27 breeding lines with erect fruit, these genotypes of 28 lines were correctly predicted. Thus, the CAPS marker will be useful for marker-assisted selection (MAS) of pepper breeding lines with the up allele at the early seedling stage.

• Journal of the Optical Society of Korea
• /
• 제20권2호
• /
• pp.283-290
• /
• 2016

This study presents an 8x four-group inner-focus zoom lens with one-moving group for a compact camera by use of a focus tunable lens (FTL). In the initial design stage, we obtained the powers of lens groups by paraxial design based on thin lens theory, and then set up the zoom system composed of four lens modules. Instead of numerically analytic analysis for the zoom locus, we suggest simple analysis for that using lens modules optimized. After replacing four groups with equivalent thick lens modules, the power of the fourth group, which includes a focus tunable lens, is designed to be changed to fix the image plane at all positions. From this design process, we can realize an 8x four-group zoom system having one moving group by employing a focus tunable lens. The final designed zoom lens has focal lengths of 4 mm to 32 mm and apertures of F/3.5 to F/4.5 at wide and tele positions, respectively.

• 대한방사선기술학회지:방사선기술과학
• /
• 제46권1호
• /
• pp.53-61
• /
• 2023

The aim of this study analyzed the important level (IL) and understanding level (UL) including the Borich's need for students preparing of the national examination for radiological technologists at online open chatting room. A total of 254 survey were collected from a total of 1,016 students who used open chatting room from December 13 to December 16, 2022. A general characteristics were the age, gender, curriculum (3 or 4 years), grade and area. The IL, UL, learning satisfaction (LS), learning achievement (LA) and intention to continue using (ICU) were analyzed by using the 5 point Likert scale. There was no significant difference the LS, LA, and ICU according to general characteristics (p>0.05). There was a statistically significant difference a total of sixteen subjects based on the t-test results of the response values from the IL and UL (p<0.05). The total of ten subjects with the highest priority in the Locus for Focus models were the Ultrasonography, Human anatomy, Magnetic resonance imaging, Radiation therapy, Cardiovascular and intervention, Computed tomography, Human physiology, Radiographic imaging, Fluroscopic radiography, and Nuclear medicine) that the Borich's need was also the same as the top 10 ranked subjects. The LS (4.23±0.72), LA (4.18±0.73), and ICU (4.15±0.78) for open chatting room were high. This study identified the subjects most needed by college students by the Borich's need analysis. First, it is necessary to provide intensive education on subjects with high scores that are most needed by college students. Second, it is necessary to improve the teaching method for subjects with low need and low level of understanding.

• 지식경영연구
• /
• 제10권4호
• /
• pp.31-42
• /
• 2009

With the rapid development of information technology, e-learning is growing in corporate. However, there are still problems in learning, such as low learning persistence rate. Learning outcomes are complex phenomenon influenced by a multitude of factors, it is need to considering the direct and indirect causal relationship among various factors. Therefore, the purpose of this study was to develop the causal model that explains the learning outcomes (satisfaction learning persistence) in corporate e-learning. This study was also intended to examine the causal relationship between the interaction and learning persistence through satisfaction mediators. For this, online survey was conducted with a sample of 270 learners who enrolled in cyber training course at A company. The major findings of this study are as follows: First, internality (internal locus of control, ${\beta}=.154$), interaction (${\beta}=.489$), satisfaction (${\beta}=.304$) have direct effect on learning persistence. Second, the interaction has direct effect on the satisfaction (${\beta}=.320$). Third, the satisfaction has direct effect on the learning persistence, and mediating the interaction and learning persistence. This result will contribute to build a learning strategy to improve learning outcomes.

• Parasites, Hosts and Diseases
• /
• 제52권3호
• /
• pp.299-304
• /
• 2014

This study aimed to identify the assemblages (or subassemblages) of Giardia duodenalis by using normal or nested PCR based on 4 genetic loci: glutamate dehydrogenase (gdh), triose phosphate isomerase (tpi), ${\beta}$-giardin (bg), and small subunit ribosomal DNA (18S rRNA) genes. For this work, a total of 216 dogs' fecal samples were collected in Guangdong, China. The phylogenetic trees were constructed with MEGA5.2 by using the neighbor-joining method. Results showed that 9.7% (21/216) samples were found to be positive; moreover, 10 samples were single infection (7 isolates assemblage A, 2 isolates assemblage C, and 1 isolate assemblage D) and 11 samples were mixed infections where assemblage A was predominant, which was potentially zoonotic. These findings showed that most of the dogs in Guangdong were infected or mixed-infected with assemblage A, and multi-locus sequence typing could be the best selection for the genotype analysis of dog-derived Giardia isolates.

• Nuclear Engineering and Technology
• /
• 제42권4호
• /
• pp.450-459
• /
• 2010

The present paper investigates the collapse pressure of cylinders with intermediate thickness subjected to external pressure based on detailed elastic-plastic finite element (FE) analyses. The effect of the initial ovality of the tube on the collapse pressure was explicitly considered in the FE analyses. Based on the present FE results, the analytical yield locus, considering the interaction between the plastic collapse and local instability due to initial ovality, was also proposed. The collapse pressure values based on the proposed yield locus agree well with the present FE results; thus, the validity of the proposed yield locus for the thickness range of interest was verified. Moreover, the partial safety factor concept based on the structural reliability theory was also applied to the proposed collapse pressure estimation model, and, thus, the priority of importance of respective parameter constituting for the collapse of cylinders under external pressure was estimated in this study. From the application of the partial safety factor concept, the yield strength was concluded to be the most sensitive, and the initial ovality of tube was not so effective in the proposed collapse pressure estimation model. The present deterministic and probabilistic results are expected to be utilized in the design and maintenance of cylinders subjected to external pressure with initial ovality, such as the once-through type steam generator.

• 디지털융복합연구
• /
• 제14권12호
• /
• pp.323-333
• /
• 2016

본 연구는 일부 여대생의 자아존중감, 무망감, 우울, 통제위치 및 A형행동유형과 취업스트레스간의 관련성을 파악하고 취업스트레스에 미치는 융복합적 영향을 분석하였다. 조사대상은 전북지역에서 임의로 선정된 531명의 여대생으로 하였으며, 자료수집은 2016년 3월 28일부터 4월 29일까지 자기기입식 설문지를 통해 이루어졌다. 위계적다중회귀분석 결과, 자아존중감이 낮을수록, 무망감이 높을수록, 우울이 높을수록, 외적통제위치가 높을수록, A형행동 유행이 높을수록 취업스트레스가 높았으며 이들의 설명력은 43.2%이었다. 공분산 구조분석 결과, 자아존중감, 무망감, 우울, 통제위치 및 A형 행동유형과 취업스트레스의 인과관계가 확인되었다. 이상의 연구결과를 볼 때, 여대생의 취업스트레스를 낮추기 위해서는 자아존중감을 높이고 무망감, 우울, 통제위치 및 A형행동유형을 낮추는 노력이 필요하다. 이러한 결과는 여대생의 취업스트레스를 줄이는 프로그램 및 정책 개발에 활용이 기대된다. 향후연구에서는 취업스트레스에 영향을 미치는 추가요인에 대한 분석이 필요하다.