• Journal of the East Asian Society of Dietary Life
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• v.25 no.6
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• pp.970-978
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• 2015

The purpose of this study was to investigate the lifestyle, food habits, image, perception of beauty and nutrition knowledge between beauty major and non-major college female students. A total of 392 women aged 20s in the survey. SPSS version 21.0 was used for analysis of data. The BMI was high in non-major students (p<0.05), proportion of underweight (p<0.001) and non-drinker (p<0.01) were significantly higher in beauty major students than non-major students. Proportion of total subjects skipped meal by the lack of time. Importance of appearance was significantly higher (p<0.05) in beauty major students. Nutrition knowledge score was significantly higher in beauty major students compared to non-major students (p<0.001).In beauty major students, food intake of meats (p<0.001) and cooked food with oil (p<0.01) were lower white vegetables (p<0.05) and fruits (p<0.01) were higher than non-major students. In conclusion, these results suggest that non-major students need to systematic education program about nutrition and diet.

• Journal of Engineering Education Research
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• v.24 no.2
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• pp.29-40
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• 2021

This research aims to examine the relationship between major satisfaction and psychological well-being of female engineering students. To achieve this goal, first, differences in major satisfaction and psychological well-being among engineering students were examined. Second, differences in major satisfaction and psychological well-being among female undergraduate students were investigated. In addition, the effects of psychological well-being, as perceived by undergraduate students by gender and major, on major satisfaction were explored. A total of three hundred and forty-nine (349) undergraduate students from two universities in Korea responded to survey based on a two-variables scale. The findings were that, firstly, male engineering students scored higher in two variables including their most sub-factors, and that gender differences in relation satisfaction as well as positive relationship with others, autonomy, and environmental mastery were statistically significant. Secondly, female engineering students scored higher in major satisfaction and several sub-factors of two variables, and that major differences in major satisfaction (total), social perception satisfaction, and autonomy - a sub-factor of psychological well-being - were statistically significant. Thirdly, a positive correlation among major satisfaction and psychological well-being was identified. Finally, psychological well-being could explain about 19% of major satisfaction. The practical implications of these findings are discussed herein, with attention on education for promotion of major satisfaction.

• Asian-Australasian Journal of Animal Sciences
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• v.17 no.8
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• pp.1033-1038
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• 2004

LOD scores related to marbling scores and permutation test have been applied for the purpose detecting quantitative trait loci (QTL) and we selected a considerable major locus BM4311. K-means clustering, for the major DNA marker mining of BM4311 microsatellite loci in Hanwoo chromosome 6, has been tried and five traits are divided by three cluster groups. Then, the three cluster groups are classified according to six DNA markers. Finally, bootstrap test method to calculate confidence intervals, using resampling method, has been adapted in order to find major DNA markers. It could be concluded that the major markers of BM4311 locus in Hanwoo chromosome 6 were DNA marker 100 and 95 bp.

• The Journal of Korean Society for School & Community Health Education
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• v.18 no.2
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• pp.71-81
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• 2017

Objectives: The purpose of this study was to investigate major satisfaction according to the values and self efficacy of students majoring in health science. Methods: Among the 170 respondents, 25.3% were male and 74.7% were females. The departments were 28.9% of physical therapy, 20.6% of laboratory science, 23.5% of occupational therapy, 14.1% of nursing, and dental hygiene 12.9%. Results: In the present study major satisfaction was significantly higher when the higher self efficacy and significantly lower when the higher value. Conclusions: These results indicate that it is necessary to provide contents and appropriate guidance that can enhance the values and self efficacy in order to improve major satisfaction of students majoring in health science.

• Journal of Applied Biological Chemistry
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• v.62 no.1
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• pp.87-91
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• 2019

The contents of major ginsenosides (ginsenosides Rb1, ginsenoside Rc, ginsenoside Rd, ginsenoside Re, ginsenoside Rf, and ginsenoside Rg1) in ginseng cultivated in different areas in Korea, ginseng that underwent different cultivation processes and ages, and ginseng cultivated in different countries were determined using high-performance liquid chromatography equipped with UV/VIS detector. Ginsenoside Rc was the most abundant ginsenoside in all different ginseng samples. The highest total concentration of major ginsenosides was found in the ginseng cultivated in Jinan (0.931 mg/g) and 4-year grown red ginseng (1.785 mg/g). Major ginsenosides were the most abundant in Korean ginseng (1.264 mg/g), compared to those in Chinese and American ginseng. The results of this study showed the different contents of major ginsenosides in the ginseng samples tested and emphasized which sample could contain high yield of ginsenosides.

• International Journal of Internet, Broadcasting and Communication
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• v.13 no.2
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• pp.166-172
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• 2021

The purpose of this study is to identify the impact of informatization minds of college students majoring in sports on information development efforts and academic achievement. Accordingly, a survey was conducted on 200 college students majoring in physical education at D University, and 197 students were selected as the final effective samples. Data processing was conducted using SPSS 23 for frequency analysis, reliability analysis, correlation analysis, and regression analysis. The results are as follows: First, recognition of the necessity of informatization education, a subfactor of the informatization mind, has a positive impact on informatino development efforts. Second, recognition of the necessity of informatization education, understanding and utilization of informatization concepts among sub-factors of informatization minds have a positive impact on the major learning achievement. Third, all the conversational factors in the informatization mind have a positive impact on study problem resolution. Fourth, information development efforts have a positive impact on the major learning achievement and the study problem resolution. Therefore, efforts are needed to increase the information mindset of college students major in sports.

• Journal of Microbiology and Biotechnology
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• v.23 no.3
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• pp.357-363
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• 2013

The identification of bacteriophage proteins on the surface of Lactobacillus rhamnosus Pen was performed by LC-MS/MS analysis. Among the identified proteins, we found a phage-derived major tail protein, two major head proteins, a portal protein, and a host specificity protein. Electron microscopy of a cell surface extract revealed the presence of phage particles in the analyzed samples. The partial sequence of genes encoding the major tail protein for all tested L. rhamnosus strains was determined with specific primers designed in this study. Next, RT-PCR analysis allowed detection of the expression of the major tail protein gene in L. rhamnosus strain Pen at all stages of bacterial growth. The transcription of genes encoding the major tail protein was also proved for other L. rhamnosus strains used in this study. The present work demonstrates the spontanous release of prophage-encoded particles by a commercial probiotic L. rhamnosus strain, which did not significantly affect the bacterial growth of the analyzed strain.

• Parasites, Hosts and Diseases
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• v.49 no.1
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• pp.17-23
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• 2011

The aim of this study was to assess the cytotoxic effects of various concentrations of miltefosine on Leishmania major (MRHO/IR/75/ER) and L. tropica (MHOM/IR/02/Mash10) promastigotes and to observe the programmed cell death features. The colorimetric MTT assay was used to find L. major and L. tropica viability and the obtained results were expressed as 50% inhibitory concentration (IC50). Also, 50% effective doses (ED50) for L. major and L. tropica amastigotes were also determined, Annexin-V FLUOS staining was performed to study the cell death properties of miltefosine using FAGS analysis. Qualitative analysis of the total genomic DNA fragmentation was performed by agarose gel electrophoresis. Furthermore, to observe changes in cell morphology, promastigotes were examined using light microscopy. In both strains of L. major and L. tropica, miltefosine induced dose-dependent death with features of apoptosis, including cell shrinkage, DNA laddering, and externalization of phosphatidylserine. The IC50 was achieved at 22 ${\mu}M$ and 11 ${\mu}M$ for L. major and L. tropica after 48 hr of incubation, respectively. ED50 of L. major and L. tropica amastigotes were 5.7 ${\mu}M$ and 4.2 ${\mu}M$, respectively. Our results indicate that miltefosine induces apoptosis of the causative agent of cutaneous leishmaniasis in a dose-dependent manner. Interestingly, L. major did not display any apoptotic changes when it was exposed to miltefosine in concentrations sufficient to kill L. tropica.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.53 no.2
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• pp.237-243
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• 2020

Listeria sp. is one of the pathogenic bacteria causes the infection listeriosis, through mainly raw food such as fishery food, dairy food and vegetables. Listeria sp. is a Gram-positive, non-spore-forming, motile, and facultative anaerobic bacterium. Because of the tolerance of Listeria sp. to low temperature and high salt concentration, it is very difficult to prevent them contaminated in the food, which do not require heating, especially, such as raw fishery products. So prevention and removal of bacterial contamination at the food manufacturing stage is the best method. In this study, therefore, several natural products including Psidium guajava and Geranium thunbergii were screened to investigate the antibacterial activity against Listeria sp., with expectation of fewer side effects and fewer resistance problems. Significant effects of two extracts were confirmed by well diffusion assay, MIC assay, and growth inhibition assay. P. guajava and G. thunbergii showed MIC values at 64-256 ㎍/mL meaning strong antibacterial activities against 6 kind of Listeria sp. tested. And the growth of Listeria sp. in the liquid media was actually inhibited by the addition of these two extracts.

• Journal of the Korea Convergence Society
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• v.7 no.4
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• pp.85-96
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• 2016

This study aimed to provide basic data required for operation and development of a program that is necessary for linkage with the major as well as proper settlement of community service of the university by identifying university students' major satisfaction and academic achievement level in relation with the characteristics of community service. A survey was conducted in 401 university students who voluntarily participated in this study using the online survey panel targeting university students who reside in Busan and South Gyeongsang Province from December 1, 2014 to February 1, 2015. The results are as follows. Students who had a community service experience and had higher participation in community service showed higher major satisfaction and academic achievement. Particularly, when community service was related to the major, major satisfaction was higher. In addition, the higher the satisfaction with community service was and the higher the need of community service was, the higher the major satisfaction was. Students with health major showed higher major satisfaction than students with non-health major. Therefore, development of an effective program will be necessary to increase the need and participation of community service and revitalize community service more continuously.