• Journal of Digital Convergence
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• v.18 no.7
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• pp.307-315
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• 2020

This study was conducted to test the effects of core note-based pre-learning on self-determination learning motivation, self-directed learning, and campus life adaptation for undergraduate nursing students. This study used a one group pre-post test design. The participants were 60 nursing students Universities located in C city. Data were collected on two separate occasions before and after the application of the program from August 2018 to November 2018. For data analysis, SPSS/WIN 23.0 program was utilized including pearson correlation coefficients & Paired t-test. This study showed a meaningful positive for self-determination(t=-.52, p<.001), self-directed learning(t=-.2.11, p=.039) and campus life adaptation(t=-2.90, p=.005). The findings suggest the necessity to develop core note-based pre-learning program of various major curriculum of nursing and various instructional strategies for vitalizing Pre-Learning Program.

• Journal of Convergence for Information Technology
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• v.11 no.11
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• pp.75-84
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• 2021

The purpose of this study is to confirm the effect of simulation practice education applied to nursing students on communication competency, critical thinking tendencies, and professionalism. This study is a one-group pre-post test design-like experimental design study, and 89 fourth graders of the Department of Nursing at one university were targeted. Data collection was from September to December 2019. The collected data were analyzed through frequency and percentage, mean, standard deviation, paired t-test, and Pearson correlation using the SPSS 20.1 program. As a result of the study, the subject's communication competency after simulation practice training (t=3.41, p<.001), critical thinking tendency (t=2.75, p<.007), professionalism was found to have increased statistically significantly (t=2.56, p<.012). After simulation practice, it was found that communication competency, critical thinking tendencies, and professionalism each had a positive correlation.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.39 no.2
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• pp.105-115
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• 2013

In Korea, the human skin tests to evaluate the anti-wrinkles and whitening effect have been accomplished in accordance with the KFDA guideline. Regarding the data of the visual assessment and machinery evaluation of the results for the human skin test, unpaired t-test have been used in order to compare between the test and the control groups and paired t-test for the comparison of effects for before and after. Descriptive statistics such as frequency analyses was used for the questionnaire evaluation data. In many cases of the European and American clinical test centers, the methodology and the statistical analysis were similar to ours. But, the documentation obtained by repeated application from identical individual has high relation. For this reason, it is desirable to apply RM ANCOVA and RM ANOVA to a visual assessment and machinery evaluation. We suggested that RM ANCOVA and RM ANOVA is the new approach to statistical analysis of human test data of functional cosmetics.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.6
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• pp.121-128
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• 2016

This study was conducted to examine the effect of a CPR education program on middle-aged women's knowledge of and attitude toward CPR. It is a quasi-experimental study using a non-equivalent control group. 58 middle aged women who participated in a vocational education program in S city were divided into the experimental group (n=29) and control group (n=29). The experimental group participated in the CPR education program once a week for 4 weeks. The data collected were analyzed using the SPSS program, frequency, proportion, chi-square test, and paired t-test. After the application of the CPR education program, the experimental group showed a significantly significant increase in their knowledge (t=10.39, p<.001) and attitude (t=8.94, p<.001). The CPR education program improved the middle-aged women's knowledge of and attitude toward CPR.

• The Journal of the Convergence on Culture Technology
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• v.9 no.1
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• pp.313-320
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• 2023

This study was to examine the effect of the hypertension self-management education program on hypertension specific self-efficacy in the aged. This study was conducted with one group pre-test and post-test design. A total 31 the aged participated in 4 weeks of intervention. Data were analyzed as SPSS ver. 21.0 using descriptive statistics and paired t-test. We have identified that hypertension specific self-efficacy(t= -3.46, p< 0.000^***) and disease awareness(t= -5.69, p<0.000^***) significantly increased. We found that 4-weeks is appropriate for hypertension self-management education program. We suggested that for over 80's, customized program should be provided.

• Journal of the Korea Society for Simulation
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• v.28 no.1
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• pp.11-21
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• 2019

Modeling and simulation(M&S) method are used to quantify the weapon effectiveness. The weapon effectiveness of artillery shells was also partially studied, but there was a lack of research on the effects of the choice of charge. Therefore, this paper presents an artillery shell's EFD(Expected Fractional Damage) calculation model based on the charge and identifies differences in the weapon effectiveness of 3D building targets according to the selection of the charge. First, the input data of the calculation model was collected and a required number of shoots was calculated to achieve the desired effects using the proposed model. Finally, a paired sample t-test was conducted to verify the proposed model.

• Journal of Life Science
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• v.24 no.7
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• pp.791-797
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• 2014

Sixty-two conserved orthologous groups (OGs) of proteins, in 63 prokaryotes and seven eukaryotes were analyzed to identify essential proteins in the mitochondria of eukaryotes, and their counterparts in prokaryotes. Twenty OGs were common in eukaryotic mitochondria, and all were translation related. Encephalitozoon cuniculi, an obligate parasitic eukaryote, shares no common mitochondrial OGs with the other 69 organisms. Seventeen conserved OGs were mitochondria related in the 69 organisms. Mitochondria related- and nonrelated-OGs were divided into prokaryotic genomes (p<0.001, paired t-test) unlike eukaryotic genomes in the distance value analysis. The most commonly conserved mitochondria-related OG was COG0048-KOG1750 (ribosomal small subunit S12), whereas it was COG0100-KOG0407 (ribosomal small subunit S11) in nonrelated OGs. These results could be applied in scientific research to determine phylogenetic relationships and in areas such as drug development.

• The Journal of the Convergence on Culture Technology
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• v.8 no.6
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• pp.421-427
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• 2022

This study was to examine the effect of lower extremity muscle strengthening exercise on balance and fall efficacy in middle older adults women. This study was conducted with one group pre-test and post-test design. A total of 34 older adults women participated in 7 weeks of intervention. Data were analyzed as SPSS ver. 21.0 using descriptive statistics and paired t-test. Right leg balance(t=6.09, p<.001), left leg balance(t=6.76, p<.001), and fall efficacy(t=6.81, p<.001) were significantly increased. Dynamic balance(t= -4.68, p=.001) was significantly decreased. This study found that lower extremity muscle strengthening exercise program could be a useful health promotion method.

• Korean Journal of Ichthyology
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• v.20 no.3
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• pp.173-178
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• 2008

The substrate preferences of juvenile black sea bass Centropristis striata (Linnaeus) was tested in a circular tank (1.5 m diameter${\times}$0.4 m deep) divided into two equal areas of oyster-related (oyster reef and whole oyster shell) and sand substrates. All trials were video taped for 20 min. Tapes were viewed on a monitor and locations of all fish recorded and timed with respect to substrate. $Mean{\pm}SE$ times on oyster shell were $18.1{\pm}2.0min$ (1-fish trial-1) and $17.5{\pm}1.7min$ (5-fish trial-1). $Mean{\pm}SE$ times on sand were $2.0{\pm}1.0min$ (1-fish trial-1) and $2.5{\pm}1.7min$ (5-fish trial-1). Black sea bass juveniles showed a significant preference for oyster reef and shell over sand substrate in single-fish trials (paired t-test, P<0.05) and also in five-fish trials (paired t-test, P<0.05). $Mean{\pm}SE$ times under oyster reefs were $16.6{\pm}2.0min$ in single-fish trials and $10.7{\pm}2.3min$ in five-fish trials. Mean numbers of movements among oyster reefs were $1.1{\pm}1.0$ in single-fish trials and $11.5{\pm}3.1$ in fivefish trials. Fish spent significantly less time under oyster reefs in five-fish trials, compared to single-fish trials (paired t-test, P<0.05) and they moved more frequently in five-fish trials than in single-fish trials (paired t-test, P<0.05). Significantly higher competition for a refuge in five-fish trials may induce less time under oyster reefs as well as frequent movement of black sea bass juveniles on shell substrate.

• The Korean Journal of Malacology
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• v.18 no.2
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• pp.83-91
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• 2002

Reproductive cycle of natural population and artificial control experiments of gonadal development by the conditions of water temperatures-feeding and starvation of Ruditapes philippinarum were investigated by histological observations. The reproductive cycle of natural population in females and males can be categorized into five successive stages; early active (February to March), late active (April to May), ripe (April to August), partially spawned (May to October), and spent-inactive stage (August to March). In the artificial control experiments, gonadal development of this species was inhibited by the low water temperature (10$^{\circ}C$). In the experimental group which was exposed to artificial high water temperatures of 19$^{\circ}C$ and 22$^{\circ}C$, gonadal development was accelerated by the higher water temperatures and was faster (about one month) than that in natural populations. In the high water temperatures-feeding experimental group, the gonadal developmental phase was faster in the small-size group than that in the large-size group, and was faster in lower water temperature (10$^{\circ}C$)(p=0.01). The gonad developmental phases in the high water temperature (22-28$^{\circ}C$)-starvation experimental group showed faster (paired sample t-test, p=0.004) than those in the high water temperature-feeding group in females and males. In the high water temperature-feeding experimental group of female and male gonadal developments of small sized group were more sensitive than those in large sized group after 42 days cultivation, However, the gonadal development of male was more sensitive to the lower water temperature than female. On the whole, sexual maturation in the high water temperature experimental group was faster than those in the low water temperature group, and showed a significant difference (paired sample t-test, p=0.001) between female and male. In the starvation experimental group after 42 days, gonadal developments in the high water temperature-large male group showed faster than those in the high water temperature-large female group. However, in small size, gonad developmental phases showed the same pattern between feeding and starvation experimental groups. During the main spawning season, in the high water temperature-starvation experimental groups in females and males, their gonadal development showed faster than that in higher water temperature-feeding experimental group regardless of their sexes and individual sizes and showed a significant difference (paired sample t-test, p=0.004).