• Journal of the Korean Mathematical Society
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• v.61 no.3
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• pp.445-459
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• 2024

In this paper, by establishing the direct method of moving planes for the fractional Laplacian system with positive-negative mixed powers, we obtain the radial symmetry and monotonicity of the positive solutions for the fractional Laplacian systems with positive-negative mixed powers in the whole space. We also give two special cases.

• Journal of the Korean Society for Industrial and Applied Mathematics
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• v.20 no.3
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• pp.225-242
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• 2016

The phase-type representation is strongly connected with the positive realization in positive system. We attempt to transform phase-type representation into sparse mono-cyclic positive representation with as low order as possible. Because equivalent positive representations of a given phase-type distribution are non-unique, it is important to find a simple sparse positive representation with lower order that leads to more effective use in applications. A Hypo-Feedback-Coxian Block (HFCB) representation is a good candidate for a simple sparse representation. Our objective is to find an HFCB representation with possibly lower order, including all the eigenvalues of the original generator. We introduce an efficient nonlinear optimization method for computing an HFCB representation from a given phase-type representation. We discuss numerical problems encountered when finding efficiently a stable solution of the nonlinear constrained optimization problem. Numerical simulations are performed to show the effectiveness of the proposed algorithm.

• Phonetics and Speech Sciences
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• v.1 no.2
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• pp.25-30
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• 2009

Animal experiments have shown that the positive peaked electrically compound action potentials (ECAPs) can be recorded in round window, intracochlear, and nerve trunk by stimulating a monopolar pulse. However, positive peaked ECAPs of cochlear implant recipients have never been reported because ECAPs are recorded from intracochlear electrodes after bipolar stimulation. In our experiment, the positive peaked ECAPs were recorded from 18 intracochlear electrodes in cochlear implant recipients with multiple cochlear anomalies. Thresholds in each channel were measured and the latency of P-, N-wave, and amplitude of P-N were analyzed. These results were identical with the electrically auditory brainstem response (EABR) on the input-output characteristics. In conclusion, the positive peaked ECAPs from the cochlear implant recipients are antidromic ECAPs recorded by perimodiolar electrodes stimulating cochlear implants with multiple anomalies. Therefore, positive peaked ECAPs can be used as useful audiological tools to evaluate the eighth nerve ending.

• Journal of Korean Academy of Nursing Administration
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• v.23 no.2
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• pp.181-190
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• 2017

Purpose: This study was done to clarify the concept analysis of positive psychological capital. Methods: Walker and Avant's concept analysis process was used in this study. CINAHL, ProQuest, Web of science, NDSL, RISS databases from 2004 to 2016 were searched using the keywords 'Positive psychological capital' and 'PsyCap'. Sixty-one relevant articles and three book were finally selected. Results: Analysis of identified literature indicated that positive psychological capital attributes were developable potential, positive cognition, expression of emotion, multiple psychological capability, and resources with positive effect. The antecedents were goal achievement, training, leader's motivation, and supportive organizational environment. The consequences were overall wellbeing which is composed of individual's physical, psychological and social wellbeing and enhancement of work outcome. Conclusion: The findings in this study provide a definition of the concept of positive psychological capital and theoretical evidence for the future research for nurses including program development.

• Journal of Korean Public Health Nursing
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• v.29 no.2
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• pp.354-364
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• 2015

Purpose: This study was conducted to determine factors related to self-esteem, personality, general characteristics and dating affecting positive affect in female college students. Methods: The subjects were 335 female students attending the three colleges in Chungnam Province. Data were collected using PANAS, Self-esteem, and DISC questionnaires. Hierarchical Multiple Regression Analysis was mainly used. Results: The factors affecting positive affect were self-esteem, personality-dominance type, personality -consciousness type, economic status and boyfriend presence in female college students. These 5 factors accounted for 30.3% of positive affect of female students. In cases of having a boyfriend, factors affecting positive affect were self-esteem, economic status, boyfriend's height, and boyfriend's economic status. These 4 factors accounted for 30.5% of positive affect of female students who have a boyfriend. Conclusion: The positive affect levels of female students should be raised in practice through intervention such as a self-esteem improvement program, personality traits intervention program, and counseling on dating.

• Korean Journal of Veterinary Service
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• v.17 no.1
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• pp.19-24
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• 1994

The porcine Aujeszky's disease was surveyed by Enzyme Immunodiffusion method and serologic neutralization test to the slaughtered pigs at slaughtehouse only in Seoul from March, 1990 to October, 1993. After detecting the positive by enzyme immunodiffusion method primary, we decided finally the positive by serologic neutralization test secondary. Results obtained through the experiments were summarized as followed； 1. The positive of Aujeszky's disease in March, 1990 was 2 of 1,000 sera. 2 positive were decided as the consigned pigs in Kalsan, Hongsung, Chungnaa 2. The positive of Aujezsky's disease in May, 1991 was decided 1 serum at Pogok, Yongin, Kyeonggi. 3. All of the positive detected by Enzyme immunodiffusion Method in 1993 were decided finally in the negative sera. 4. The positive sera detected in 1992 were decided 32 sera at Gyeonggi, 6 at Chungnam, and 1 at Gangwon. Especially, the positive sera percentage detected by Kit Latex Aujeszky Test appeared 78.04% at Gyonggi and by enzyme immunodiffusion Method appeared 11.11% at Chungnam and Gangwon.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05c
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• pp.1997-2000
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• 2003

False Positive Alert 은 IDS 가 공격이 아닌 것을 공격으로 잘못 판단하는 것이다 이러한 false Positive 는 시스템에 직접적인 피해를 주지는 않으나, 시스템 관리자가 적절한 대처를 하기 어렵게 하므로 IDS의 새로운 문제점으로 대두되고 있다. 본 논문에서는 이러한 false Positive를 줄이기 위해 IDS 에서 나오는 Alert 중 False Positive를 필터링 하는 방법에 대해 제시한다. 공격에 대한 Alert과 False Positive Alert의 시간 패턴을 각각 분석, 학습함으로써 그 후의 Alert의 False Positive 여부를 판별한다.

• Journal of Korean Clinical Health Science
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• v.10 no.1
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• pp.1578-1586
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• 2022

Purpose. The purpose of this study was to examine relationships among academic stress and academic self-efficacy on positive psychological capital and identify the factors that influence on positive psychological capital in the nursing students. Methods. The data were collected from 184 nursing students in the five colleges located Y and S city using self-reported questionnaires and Oct. 25 2020 to Nov. 5 2020. The data were analyzed by descriptive statistics, T-test, ANOVA, Pearson's correlation coefficient, and multiple regression with SPSS 20.0 program. Results. The result of positive psychological capital was found to be in a significant positive correlated with academic self-efficacy. the multiple regression indicates the Major satisfaction and academic self-efficacy 22.1%(F=11.4 P<.001) of positive psychological capital. Conclusions. Therefore, it is necessary to develop academic self-efficacy increase education program for strategy positive psychological capital in nursing students.

• The Journal of the Korea Contents Association
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• v.19 no.8
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• pp.10-22
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• 2019

The objective of this study is to analyze the relationships among manager' positive leadership, organizational member's organizational commitment and job performance. The questionnaire was performed for organizational members 387 in Seoul and metropolitan area. The collected data was analyzed by structural equation model and Sobel test. As a result of analysis, positive leadership factors such as positive climate, positive relationships, positive communication and positive meaning showed a statistically significant positive effects on the organizational member's organizational commitment. The organizational member's organizational commitment also showed a statistically significant positive effects on the job performance in company. The positive leadership factors such as positive climate, positive relationships, positive communication and positive meaning showed a no statistically significant effects on the organizational member's organizational commitment. But, they showed a statistically significant effects on job performance in indirect manner with the mediating effect of the organizational commitment. It is worthwhile that in this study, the effect of positive leadership of manage on the organizational member's organizational commitment and job performance was verified, and then, it is meaningful to present the role and importance of manager' positive leadership.

• Journal of Korean Academy of Nursing
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• v.47 no.5
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• pp.638-650
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• 2017

Purpose: Recently, the interest in positive psychotherapy is growing, which can help to encourage positive relationships and develop strengths of people. This study was conducted to investigate the effects of a positive psychotherapy program on positive affect, interpersonal relations, resilience, and mental health recovery in community-dwelling people with schizophrenia. Methods: The research was conducted using a randomized control group pretest-posttest design. A total of 57 adults with schizophrenia participated in this study. The study participants in experimental group received a positive psychotherapy program (n=28) and the participants in control group received only the usual treatment in community centers (n=29). The positive psychotherapy program was provided for 5 weeks (of 10 sessions, held twice/week, for 60 minutes). The study outcomes included positive affect, interpersonal relations, resilience, and mental health recovery. The collected data were analyzed using repeated measures ANOVA for examining study hypothesis. Results: Results showed that interpersonal relations (F=11.83, p=.001) and resilience (F=9.62, p=.003) significantly increased in the experimental group compared to the control group. Although experimental group showed a slight increase in positive affect, it was not significant. Conclusion: The study findings confirm that the positive psychotherapy program is effective for improving interpersonal relations and resilience of community-dwelling people with schizophrenia. Based on the findings, we believe that the positive psychotherapy program would be acceptable and helpful to improve recovery of mental health in schizophrenia.