• 대한불안의학회지
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• 제11권2호
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• pp.136-142
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• 2015

Objective : Subjective tinnitus is defined as an acoustic sensation perceived without any external source. Patients with tinnitus have often experienced psychological distress and low quality of life. However, the connection between psychiatric characteristics and tinnitus has not yet been established. The purpose of this study was to investigate the relationship of psychiatric characteristics with tinnitus severity. Method : A total of 124 patients with tinnitus were included in the study. Demographic and clinical characteristics were retrospectively collected in the otolaryngology clinic. The self-reported scales including the Tinnitus Handicap Inventory, the Hospital Anxiety and Depression Scale and the Anxiety Sensitivity Index were used in this study. Results : The Pearson product moment correlation revealed significant correlations between tinnitus severity and psychiatric characteristics including depression (r=0.26, p<0.01), anxiety (r=0.38, p<0.01), anxiety sensitivity (r=0.27, p<0.01). After controlling for age, sex and awareness of tinnitus, tinnitus severity was positively correlated with anxiety (partial r=0.39, p<0.01) and anxiety sensitivity (partial r=0.28, p<0.01). These correlations remained significant in male but not in female patients. Conclusion : Results of the present study indicated that not only anxiety symptoms but also anxiety sensitivity could relate to tinnitus severity. Our findings have implications for the understanding of the psychiatric characteristics in patients with tinnitus.

• Child Health Nursing Research
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• 제23권4호
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• pp.429-439
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• 2017

Purpose: The aim of this study was to identify the status of psychological health among boys in high school and to examine the mediating effects of social support on the relationship between anger and entrapment on psychological health. Methods: The participants in this study were 193 high school boys from Jeju. Measurements included state-trait anger expression inventory, entrapment scale, student social support scale, and questionnaires to assess mental and physical health. Data were analyzed using independent t-test, one-way ANOVA, $Scheff{\acute{e}}$ test, Pearson correlation coefficient, simple and multiple regression techniques with the SPSS 21.0. Mediation analysis was performed with the Baron and Kenny's method, and Sobel test. Results: Mean scores for anger experience, entrapment, social support, and psychological health were $29.81{\pm}7.34$, $34.09{\pm}16.33$, $45.75{\pm}7.02$, $22.51{\pm}9.91$, respectively. There was a significant correlation between anger experience and psychological health. Entrapment was significantly correlated with psychological health. Social support showed partial mediating effects in the relationship between anger experience and psychological health (Sobel test: Z=54.18. p<.001). Social support showed partial mediating effects in the relationship between entrapment and psychological health (Sobel test: Z=2.24. p=.025). Conclusion: The results indicate a need to develop social support programs for boys in high school.

• Journal of Plant Biotechnology
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• 제29권3호
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• pp.209-215
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• 2002

국내에 분포하는 음나무 (Kalopanax pictus Nakai) 자생군락에서 7집단 197본을 선정하여 생리활성물질인 kalosaponins 함량을 HPLC로 분석하였다. 또한 kalosaponins 고함유 개체를 대상으로 이들 개체의 생장특성을 조사하여 단순상관, 편상관 및 다중회귀분석을 통해 kalosaponins 생산에 영향을 미치는 생장요인을 추정하였다. 자생집단별 내피의 총kalosaponins 함량은 발왕산집단 (30.37 mg/g dry weight)으로 가장 높았고, 가리왕산 집단, 한라산 II집단, 전남 망운집단, 경기 팔탄집단, 한라산 I집단 순이었다. Kalosaponins 함량과 생장특성에 대한 분석결과, kalosaponin P 함량에 가장 높게 영향하는 인자는 내피두께로 나타났으며, kalosaponin O 함량은 내피무게와 수령으로 나타났으며, kalosaponin B 함량은 내피중량과 평균흉고직경으로 나타났다. 이상의 결과로 보아 음나무 내피의 특성이 kalosaponins 생산에 밀접하게 관계하는 것으로 나타났다.

• 동의생리병리학회지
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• 제35권6호
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• pp.267-273
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• 2021

Mibyeong (sub-health) is a concept that represents the sub-health in traditional East Asian medicine. Assuming that the nose sizes and shapes are related to respiratory function, in this study, we hypothesized that the nose size and shape features are related to the self-rated health (SRH) level and self-rated Mibyeong severity, and aimed to assess this relationship using a fully automated image analysis system. The nose size features were evaluated from the frontal and profile face images of 810 participants. The nose size features consisted of five length features, one area feature, and one volume feature. The level of SRH and the Mibyeong severity were determined using a questionnaire. The normalized nasal height was negatively associated with the self-rated health score (SRHS) (partial ρ = -0.125, p = 3.53E-04) and the Mibyeong score (MBS) (partial ρ = -.172, p = 9.38E-07), even after adjustment for sex, age, and body mass index. The normalized nasal volume (ρ = -.105, p = 0.003), the normalized nasal tip protrusion length (ρ = -.087, p = 0.014), and the normalized nares width (ρ = -.086, p = .015) showed significant correlation with the SRHS. The normalized nasal area (ρ = -.118, p = 0.001), the normalized nasal volume (ρ = -.107, p = .002) showed significant correlation with the MBS. The wider, longer, and larger the nose, the lower the SRHS and MBS, indicating that health status can be estimated based on the size and shape features of the nose.

• International Journal of Quality Innovation
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• 제8권3호
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• pp.1-10
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• 2007

A sample of Italian manufacturing companies was selected in order to verify the abilities and effects (relationships) of the management factors human resources, leadership and strategic planning on company performance. The Partial Least Squares (PLS) estimation method was used for analyzing the data collected, where the relationships between the management factors and performance were formalized by a Structural Equation Model (SEM). The analysis of the survey data showed unexpected result regarding the non significant direct relationship between Leadership and Performance. The effect of Leadership is obtained by an indirect relationship through Human Resources. The combination of Leadership and Human Resources has hence been identified as the management factors which have the highest impact on the performance of Italian industrial companies. Another interesting and unexpected result was that there was no significant impact of Strategic Planning on Performance. It seems that the leaders of Italian industrial companies have not understood that good strategic planning is a necessary condition for achieving excellence. So another improvement area is in fact Strategic Planning. This area should have the highest priority of any top management team and the focus should include how to establish a strong relationship between strategic planning and performance. No correlation between strategic planning and performance is a strong indication that something is wrong. It is not enough that Leadership is doing Strategic Planning-Leadership is also about studying and follow up on results in order to assure impacts on performance. This link seems to be missing in Italian industrial companies.

• 대한전기학회논문지:전기물성ㆍ응용부문C
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• 제49권4호
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• pp.226-231
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• 2000

In this paper, we present new method to analyze the space charge effect on the electrical characteristics in polymer. It is new measurement system and analysis method that have not reported yet. By using this measurement system, we make observation to space charge accumulated on the surface of polymer at AC voltage, so it is examined to verify the correlation of space charge and partial discharge(PD). In the result of experiment, it can be known that PD pattern is related more closely to space charge accumulated on the surface of polymer than in the inner part, and applied voltage in the air is ruled by this dynamic partial discharge. Also, above critical voltage, the space charge accumulated on the surface of polymer have no effect to the magnitude of PD and the applied voltage in the air. It has been known that the electric power of the dissolution system is proportioned to the frequency and the magnitude of applied voltage, but we can know by this result of the experiment that the efficiency of the dissolution is not related to the rise of voltage above critical voltage.

• 한국식품과학회지
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• 제38권6호
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• pp.835-837
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• 2006

근적외선 분광광도법을 이용하여 송이버섯의 원산지 판별을 시험하였다. 259개의 국내산 시료중 256개는 국내산으로 판별하였고(98.84%) 수입산 81개중 60개는 수입산으로 판별하였으나(74.07%) 21개의 북한산은 판별하기가 모호하여 잘못 판정한 것으로 간주할 때 시료 판별의 전체정확도는 92.94%로 나타났다. MPLS에 따른 분석의 경우 상관계수는 0.84, 검량선의 표준오차는 15.10%, 예측 표준오차는 18.30% 이었다.

• Food Science and Biotechnology
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• 제16권3호
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• pp.477-481
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• 2007

Fourier transform near-infrared (FT-NIR) spectroscopy and partial least squares (PLS) regression were used to predict the amylose content of polished rice. Spectral reflectance data in a wavelength range of 1,000 to 2,500 nm were obtained with a commercial spectrophotometer for 60 different varieties of Korean rice. For a comparison of this spectroscopic method to a standard chemical analysis, the amylose contents of the tested rice samples were determined by the iodine-blue colorimetric method. The highest correlation for the rice amylose ($R^2=0.94$, standard error of prediction=0.20% amylose content) was obtained when using the FT-NIR spectrum data pre-treated with normalization, the first derivative, smoothing, and scattering correction.

• 한국정보통신학회논문지
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• 제6권4호
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• pp.499-504
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• 2002

본 논문에서는 열잡음과 부분대역 재밍잡음 그리고 인접한 8개의 비트 패턴에 대한 심볼간 간섭을 고려하여 FH/CPFSK 시스템의 성능을 분석하였다. 이와 같은 FH/CPFSK 시스템의 분석을 위한 파라메타 비트율(bit rate)과 변조지수를 사용하였으며, 차동검파기(Differential Detector)를 이용한 최적 수신 상관함수 제시하고, FH/CPFSK 시스템과 FH/BFSK 시스템을 비교평가 하였다. 그 결과, 근사식과 실제식의 비트 오류 확률은 높은 신호대 잡음비에서 거의 일치함을 알 수 있었고, 재밍율에 따른 성능은 차동검파를 사용한 FH/CPFSK 시스템이 리미터-변별기를 사용한 FH/CPFSK 시스템 보다 3dB 성능이 떨어지나 FH/CPFSK 시스템보다는 2dB 성능이 우수함을 입증하였다.

• 성인간호학회지
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• 제28권4호
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• pp.482-490
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• 2016

Purpose: The purpose of the study was to examine the impact of self-efficacy in the prevention of sexually transmitted diseases (STD), knowledge of and susceptibility to STD, and the role of gender in sexual autonomy. Methods: Data were collected from 267 college students using self-report questionnaires during the period from the first to the twentieth of June 2015. Data were analyzed using $x^2$ test, Fisher's exact test, t-test, Pearson correlation coefficients, simple and multiple regression techniques with the PASW/WIN 20.0 program. Mediation analysis was performed according to the Baron and Kenny method and Sobel test. Results: In male students, self-efficacy for STD prevention showed a full mediating effect in the relationship between STD susceptibility and sexual autonomy (${\beta}$=-.08, p=.370). But in female students, it had a partial mediating effect (${\beta}$=-.25, p=.001). And self-efficacy for STD prevention showed partial mediating effects in the relationship between knowledge of STD and sexual autonomy in the both male (${\beta}$=.25, p=.005) and female students (${\beta}$=.33, p<.001). Conclusion: To enhance college students' sexual autonomy, it may be useful to build effective strategies enhancing students' knowledge about and susceptibility to STD and to develop a self-efficacy promotion program for college students.