• Journal of the Institute of Electronics Engineers of Korea TC
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• v.48 no.2
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• pp.14-20
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• 2011

In mobile ad hoc networks where the communication nodes are moving around, one may perform dynamic routing that can increase the total communication throughput of the network, by determining the ranks of pairs of nodes according to their communication throughput. The balanced Howell rotation is a tournament design scheme for bridge games. This paper explains that the balanced Howell rotation can be applied to enhance the overall communication throughput of mobile ad hoc networks, and proposes and proves the condition under which the balanced Howell rotations may exist.

• Journal of Industrial Convergence
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• v.21 no.6
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• pp.73-80
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• 2023

The purpose of this study was to identify the stress, social support, and happiness in undergraduate nursing students who experienced the COVID-19 pandemic, and to identify factors affecting happiness. The survey was conducted from December 18, 2022 to January 5, 2023. The subjects were 195 first and second grades nursing students attending two universities located in G city. Data were analyzed by t-test, ANOVA, Scheffe test, Games-Howell test, Pearson's correlation, and multiple regression. Statistically, happiness showed a significantly negative correlation stress(r=-.17, p=.017) and positive correlation with social support(r=.68, p<.001). Influencing factors on happiness were social support(β=.63, p<.001) and department satisfaction(β =.30, p<.001) accounting for 49.7% of the total change. In order to improve the happiness of nursing students based on the results of this study, strategies and programs that can increase social support and department satisfaction are needed.

• Journal of Industrial Convergence
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• v.21 no.11
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• pp.97-105
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• 2023

The purpose of this study is to confirm the relationship between emotional intelligence, self-leadership, and organizational socialization of nursing students who have experienced clinical practice, and to identify factors that affect organizational socialization. From May 4, 2023 to June 10, 2023, 226 3rd year nursing students attending two universities located in G city were enrolled. Data were analyzed by t-test, ANOVA, Scheffé test, Games-Howell test, Pearson's correlation, and Stepwise multiple regression. Statistically, organizational socialization showed a significantly positive correlation with emotional intelligence (r=.61, p<.001) and self-leadership (r=.64, p<.001). The factors influencing organizational socialization were self-leadership (β=.407, p<.001), emotional intelligence (β=.320, p<.001), and better interpersonal relationships (β=.139, p=.004). followed by religion (β=.103, p=.030), explaining 51.1% of the total variation. Based on the results of this study, self-leadership, emotional intelligence, and interpersonal relationship improvement programs are needed to improve organizational socialization of nursing students.

• Journal of Industrial Convergence
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• v.20 no.10
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• pp.25-32
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• 2022

The purpose of this study was to identify the degree of empathy, communication competence and person-centered care of nursing students to identify the factors that influence person-centered care. Data were collected by using questionnaires from 207 students in the 3^rd and 4^th grades of the nursing college who experienced clinical practice in G city, from May 2 to 20, 2022. Data were analyzed by t-test, ANOVA, Games-Howell test, Scheffe test, Pearson's correlation, and multiple regression. Statistically, person-centered care showed a significantly positive correlation with empathy(r=.57, p<.001) and communication competence(r=.63, p<.001). Influencing factors on person-centered care were communication competence(β=.44, p<.001), empathy(β=.30, p<.001) and clinical practice satisfaction(β=-.13, p=.028) accounting for 49.8% of the total change. Based on this results, in order to improve person-centered care of nursing students, it is necessary to develop education programs to increase communication competence and empathy ability and to provide active feedback through pre and post evaluation to increase clinical practice satisfaction.

• Korean Journal of Occupational Health Nursing
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• v.25 no.3
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• pp.148-155
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• 2016

Purpose: This study aimed to understand the degree of clinical nurses' emotional labor that they perceive in the relationships with people related to their work. Methods: This study was a descriptive research, and its subjects were 167 nurses in five university hospitals located in B and Y city. The degree of emotional labor was measured with Visual Analogue Scale (VAS). Data were collected from April to May in 2015, and analyzed by descriptive statistics, t-test, ANOVA, $Scheff{\acute{e}}$ and Games-Howell examination. Results: The score of the emotional labor of health care providers and visitors were higher than non-health care providers. Among health care providers, doctors had the highest emotional scores, and fellow nurse and nurses other departments were followed after that. Among visitors in hospital, patients and their family had the higher emotional labor scores than care givers. There was statistically significant difference in the emotional labor, according to the subjects' educational level, age, wages, job position, and working departments. Conclusion: Clinical nurses perceived emotional labor not only from the interaction with patients, but also from the interaction with the various other persons concerned such as health care providers, non-health care providers and visitors.

• Journal of Korean Academy of Fundamentals of Nursing
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• v.21 no.2
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• pp.131-140
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• 2014

Purpose: This study was done to evaluate the efficacy of Nei-Guan acupressure on nausea and vomiting in patients undergoing laparoscopic prostatectomy with intravenous patient controlled analgesia (IV-PCA). Methods: Data were collected between August 13, 2012 and January 31, 2013 at a hospital in Busan. The participants were 45 men, who underwent the surgery laparoscopic prostatectomy, with IV-PCA. Data were analyzed using descriptive statistics, $x^2$-test, repeated measures ANCOVA and Games-Howell test with PASW 18.0. Results: Nei-Guan acupressure had an interaction effect on nausea between group and time (F=5.01, p<.001), group (F=10.80, p<.001), time (F=26.51, p<.001) in laparoscopic prostatectomy with IV-PCA and also an interaction effect on vomiting between group and time (F=2.77, p=.032), group (F=8.89, p=.001), time (F=4.01, p=.022). Conclusion: Results indicate that nei-guan acupressure is a potentially effective therapy for the prevention of nausea and vomiting which occur with IV-PCA. Therefore, if patients complain of nausea and vomiting when receiving IV-PCA, nurses can provide patients with information about nei-guan acupressure and help them with nausea and vomiting.

• Journal of Korean Public Health Nursing
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• v.23 no.2
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• pp.199-206
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• 2009

Purpose: This study was designed to compare health habit and self-rated health status among early adulthood women in 1995, 2001, and 2007. Also, it was performed to determine correlations between health habits and self-rated health status. Methods: This research was investigated to identify a transition of health habits and self-rated health status. Participants who agreed to participate in the study were 18~25years old college women. Data was collected from 380 college students in 1995, 196 college students 2001, and 411 college students in 2007. Health habit assessment questionnaire was developed by authors. The reliability of the questionnaire were Cronbach $\alpha$=.87. Cronbach $\alpha$=.85, Cronbach $\alpha$=.90. The visual analogue scale which had 100 self-rating scores was used. All statistical analyses were used the Statistical Package for Social Sciences for Windows, Statistical analyses included descriptive statistics, Levene's test, repeated measure ANOVA, Brown-Forsythe test, Turkey test, Games-Howell test, and Pearson correlation coefficient test. Results: Health habit level, and self-rated heath status were significantly increased over time after 1995. Health habits was correlated with self-rated health status. Conclusion: Health habits and self-rated health status were influenced by health environments. Health practitioner can use perceived health status to access health habits.

• Fashion & Textile Research Journal
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• v.14 no.5
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• pp.853-865
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• 2012

This study has analyzed body size of adult women between 20~59 years old in 2010 conducted by Size Korea and the study method is as follow. (1) Distribution ratio of bust circumference per age and distribution ratio of differences of bust drops were analyzed. (2) Analysis of one-way design of experiment was carried out for 20 items of body sizes according to differences of bust drops with regard to age groups of 20 and 40 years old in consideration of tourists who are unspecified target and for the whole ages groups. (3) Comparison analysis of 20 items of body sizes per bust circumference and according to level of differences of bust drops was carried out and (4) t-test of the two groups based on the standard of 12.5 cm of the differences of bust drops was conducted and was analyzed. Tthe differences of bust drops below 10 cm were reduced according to ages. 12.5 cm was the most in the group of ages of 20s and under 7.5 cm was reduced as ages were higher. Body items according to the differences of bust drops per ages had meaningful differences between groups except (acromion height-axilla height), height and shoulder length for the group of ages of 20s and in the whole ages groups, there was meaningful difference between groups in all items except height and shoulder length. Comparisons according to the differences of bust drops per section of 5 cm of bust circumference showed meaningful differences between groups in general in items of BMI, bust point-bust point, neck circumference, bust circumference, underbust circumference, neck point to bust point and weight. As the result of comparing the two groups of the differences of bust drops based on the standard of 12.5 cm, all had meaningful differences except stature and shoulder length.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.1
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• pp.571-578
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• 2013

Background: Patients with breast cancer can experience a feeling of hopelessness very deeply in the adjustment process, and the social support provided during this period can be effective in increasing the level of hope. The present study aimed to identify breast cancer patients' social support and hopelessness level. Materials and Methods: The target population of this analytical study was all breast cancer patients (total of 85) who had treatment in the oncology department of a university hospital located in Adana/Turkey and who met the inclusion criteria. Data were collected through "Personal Information Form", "Beck Hopelessness Scale (BHS)" and "Multidimensional Scale of Perceived Social Support" (MSPSS). Analysis was performed using Shapiro Wilk, One Way ANOVA Welch, Student t-test, Mann Whitney U, and Kruskall Wallis tests. Homogeneity of variance was tested with the Levene, Bonferroni and Games Howell tests. Mean scores and standard deviation values are given as descriptive statistics. Results: Average age of the participants with breast cancer is $48.6{\pm}10.6$. Of all the participants, 84.7% are married, 49.4% graduated from primary school, 81.2% are housewives, and 82.4% had children. The participants' multidimensional perceived social support total scores were found to be high ($57.41{\pm}13.97$) and hopelessness scale scores low ($5.49{\pm}3.80$). There was a reverse, linear relationship between hopelessness scale scores and social support total scores (r=-0.259, p=0.017). A statistically significant relationship was found between hopelessness scores and education level and having children, occupation, income status, and education level of spouses (p<0.05). Conclusions: The present study indicates that hopelessness of the patients with breast cancer decreased with the increase in their social support. Therefore, activating patient social support systems is of importance in increasing their level of hope.

• The Journal of Advanced Prosthodontics
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• v.12 no.4
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• pp.181-188
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• 2020

PURPOSE. The effect of core design on the fracture resistance of zirconia-lithium disilicate (LS2) bilayered crowns for anterior teeth is evaluated by comparing with that of metal-ceramic crowns. MATERIALS AND METHODS. Forty customized titanium abutments for maxillary central incisor were prepared. Each group of 10 units was constructed using the same veneer form of designs A and B, which covered labial surface to approximately one third of the incisal and cervical palatal surface, respectively. LS2 pressed-on-zirconia (POZ) and porcelain-fused-to-metal (PFM) crowns were divided into "POZ_A," "POZ_B," "PFM_A," and "PFM_B" groups, and 6000 thermal cycles (5/55 ℃) were performed after 24 h storage in distilled water at 37 ℃. All specimens were prepared using a single type of self-adhesive resin cement. The fracture resistance was measured using a universal testing machine. Failure mode and elemental analyses of the bonding interface were performed. The data were analyzed using Welch's t-test and the Games-Howell exact test. RESULTS. The PFM_B (1376. 8 ± 93.3 N) group demonstrated significantly higher fracture strength than the PFM_A (915.8 ± 206.3 N) and POZ_B (963.8 ± 316.2 N) groups (P<.05). There was no statistically significant difference in fracture resistance between the POZ_A (1184.4 ± 319.6 N) and POZ_B groups (P>.05). Regardless of the design differences of the zirconia cores, fractures involving cores occurred in all specimens of the POZ groups. CONCLUSION. The bilayered anterior POZ crowns showed different fracture resistance and fracture pattern according to the core design compared to PFM.