Psychological mechanism linking authentic leadership to organizational behavior, mediating role of PSS

Kiho Jun,Seong Hoon Park,Hun-Jun Park 한국인사관리학회 2011 한국인사관리학회 학술대회 발표논문집 Vol.2011 No.1

Based on the theory of authentic leadership and organizational support theory, this study examined the effects of authentic leadership on employees'attitudes and behaviors such as job satisfaction, organizational citizenship behavior (OCB), affective commitment, and turnover intention. Especially, this study focused on the mediating role of perceived supervisor support (PSS). Using data from 433 respondents in several business organizations, we found that PSS completely mediated all the relationship between authentic leadership and followers'attitudes and behaviors: job satisfaction, organizational citizenship behavior (OCB), affective commitment, and turnover intention. Drawing from these results, managerial implications and future research directions are discussed.

Does Leader Humor Promote Employee Organizational Identification?: The Roles of Affect, Power Distance Orientation, and Abusive Supervision

전기호(Kiho Jun),장윤희(Yunhee Chang),전경미(Kyungmi Chun) 한국인사조직학회 2019 인사조직연구 Vol.27 No.1

본 연구는 조직 내 리더의 유머 행위가 조직 구성원의 조직 동일시 정도에 미치는 영향력을 실증적으로 입증하고자 하였다. 또한, 다양한 문헌 연구를 통해 이러한 리더의 유머 행위와 조직 동일시 정도의 관계에 감정(affect)이 미치는 영향력에 대한 이론적근거를 제시하고자 하였으며, 리더의 유머 행위와 감정 사이의 관계에 권력거리(power distance), 비인격적 감독 행위(abusive supervision)가 어떠한 영향을 미치는 것인가에 대해서도 이론적 근거를 제시하고 그 효과를 실증적으로 입증하였다. 이를 위해, 총 192명의 직장인을 대상으로 한 설문조사 결과를 사용하여 연구 가설을 검증하였으며, 리더의 유머 행위가 조직 동일시 정도에 미치는 영향력을 긍정적인 감정이 매개한다는 사실을 입증하였다. 또한, 권력거리는 유머 행위와 긍정적인 감정 사이의 관계를 조절한다는 사실을 발견하였으며, 구체적으로는 권력거리가 낮을 때, 유머 행위가 긍정적인 감정에 더 강한 영향을 미친다는 사실을 발견하였다. 마지막으로, 비인격적 감독 행위의 경우 유머 행위와 긍정적인 감정 사이의 관계를 조절한다는 사실을 발견하였으며, 비인격적 감독 행위의 정도가 낮을 때, 유머 행위와 긍정적인 감정 사이의 관계가 보다 더 강화된다는 사실을 발견하였다. 본 연구의 연구 결과는 다음과 같은 공헌점을 갖는다. 첫째, 본 연구는 리더의 유머 사용이 구성원의 조직 동일시에 작용하는가 하는 여부와 그 구체적인 영향력을 밝혔다는 점에 큰 의의를 갖는다. 두번째, 유머와 긍정적 감정간 조절 변수 중 하나로 권력 거리의 영향력을 검증한 것이본 연구의 또 다른 이론적 공헌이라 할 수 있다. 마지막으로 본 연구는 비인격적 감독행위가 유머의 사용과 같은 리더의 긍정적인 행위가 개인 및 조직 전체에 미치는 긍정적인 영향을 감소시킬 수 있음을 실증적으로 입증하였다는 점에서 의의를 갖는다하겠다. In this study, we attempted to investigate the under-explored relationship between leader humor and employee organizational identification in the workplace. Drawing upon several views of humor including social exchange perspective, we sought to answer several interesting questions: how does leader humor increase employee organizational identification? Under which conditions is leader humor more effective? First, focusing on the role of emotions in the workplace, we expect that leader humor will be positively associated with employee organizational identification, mediated by increased positive affect. Second, we focus on the contingent effect of leader humor on employee positive affect by arguing that the contextual factors might magnify or nullify the effects of leader humor. In other words, we examined whether leader humor might be ambivalent under certain circumstances. Using data from 192 respondents from different organizations, we tested our hypothesized moderated mediation model and found that positive affect mediates the relationship between leader humor and organizational identification. Furthermore, the results showed that power distance orientation moderated the relationship between humor and positive affect such that humor has stronger effects on positive affect when power distance orientation is lower. Finally, we found that leader humor and abusive supervision interact to influence employee positive affect. Theoretical implications and directions for future research are discussed.

MPEG-4 저작도구 기반의 MPEG-4 IPMP 시스템 설계 및 구현

전기호(Kiho Jun),박철민(Cheolmin Park),최일선(Ilsun Choi),김창수(Changsu Kim),정회경(Hoekyung Jung) 한국정보과학회 2004 한국정보과학회 학술발표논문집 Vol.31 No.1A

MPEG-4 디지털 콘텐츠는 통신, 컴퓨터, 방송, 모바일 등의 다양한 분야에서 멀티미디어 데이터를 처리하기 위한 표준으로 자리 잡고 있다. 하지만 저작권 보호 및 관리 시스템의 부재로 기업간 저작권 시스템의 문제와 관심이 대두되어 ISO/IEC의 산하기관인 MPEG에서는 MPEG-4 시스템 표준에 부합되는 IPMP(Intellectual Property Management and Protection) 시스템 인터페이스를 표준으로 제정하여 저작권을 보호하고 관리하는 공동 방법을 제공하였다. 이에 본 논문에서는 기존 MPEG-4 저작도구에 기반하여 MPEG-4 IPMP 시스템을 플러그인처럼 추가할 수 있는 확장 시스템 구현을 목적으로 두고 있다. 설계 부분은 IPMP 정보 저장부, IPMP 정보 변환부, 멀티미디어 처리부, XMT-A to MP4 컨버터, IPMP 정보 처리부로 구성하였고, 저작자가 IPMP 정보를 효율적으로 입력, 수정하고 시스템에서 처리되도록 구현하여 표준에 따라 보호 및 관리 신호를 갖는 MPEG-4 디지털 콘텐츠를 저작하였다.

Fractal dimension in human cortical surface: Multiple regression analysis with cortical thickness, sulcal depth, and folding area

Kiho, I,Jong-Min, L,Uicheul, Y,Yong-Wook, S,Soon Beom, H,In Young, K,Jun Soo, K,Sun I, K Wiley Subscription Services, Inc., A Wiley Company 2006 Human brain mapping Vol.27 No.12

<P><B>Abstract</B></P><P>Fractal dimension (FD) has been widely used to provide a quantitative description of structural complexity in the cerebral cortex. FD is an extremely compact measure of shape complexity, condensing all details into a single numeric value. We interpreted the variation of the FD in the cortical surface of normal controls through multiple regression analysis with cortical thickness, sulcal depth, and folding area related to cortical complexity. We used a cortical surface showing a reliable representation of folded gyri and manually parcellated it into frontal, parietal, temporal, and occipital regions for regional analysis. In both hemispheres the mean cortical thickness and folding area showed significant combination effects on cortical complexity and accounted for about 50% of its variance. The folding area was significant in accounting for the FD of the cortical surface, with positive coefficients in both hemispheres and several lobe regions, while sulcal depth was significant only in the left temporal region. The results may suggest that human cortex develops a complex structure through the thinning of cortical thickness and by increasing the frequency of folds and the convolution of gyral shape rather than by deepening sulcal regions. Through correlation analysis of FD with IQ and the number of years of education, the results showed that a complex shape of the cortical surface has a significant relationship with intelligence and education. Our findings may indicate the structural characteristics that are revealed in the cerebral cortex when the FD in human brain is increased, and provide important information about brain development. Hum Brain Mapp, 2006. © 2006 Wiley‐Liss, Inc.</P>

Optimization and application of highly Si added AlTiN coating by AIP

Kiho Yeo,Euichul Shin,Jaimoo Yoo,Youngha Jun 한국표면공학회 2013 한국표면공학회 학술발표회 초록집 Vol.2013 No.11

Evaluation of ST2 and NT-proBNP as cardiac biomarkers in dogs with heartworm disease

( Kiho Lee ),( Jun-seok Park ),( Kyoung-won Seo ),( Kun-ho Song ) 한국동물위생학회(구 한국가축위생학회) 2018 韓國家畜衛生學會誌 Vol.41 No.2

This study compared serum concentrations of suppression of tumorigenicity 2 (ST2) and N-terminal pro-B-type natriuretic peptide (NT-proBNP) between healthy and heartworm- infected dogs. Eighteen heartworm-infected dogs and five healthy dogs were included in the study. Dogs were diagnosed and categorized by history, clinical signs, and blood assay, thoracic radiography, echocardiography, and commercial ELISA kit results. Serum samples were sent to the IDEXX reference laboratory for NT-proBNP measurement. ST2 was examined by using a canine interleukin 33 receptor ELISA kit with the quantitative sandwich ELISA method. The severely infected group showed significant elevation of NT-proBNP concentration over those of the control (P=0.03) and mildly infected (P=0.04) group. There were no significant difference in ST2 concentrations among the three groups. The usefulness of NT-proBNP as a cardiac biomarker in dogs with severe heartworm disease was confirmed by the results of this study. Further investigations to assess ST2 as a cardiac biomarker are warranted.

비 실시간 운영체계 환경에서의 다중센서 융합을 위한 시간 동기화 방안

김준(Jun Kim),곽기호(Kiho Kwak),안성용(Seongyong Ahn),심성대(SungDae Sim),배건성(Keunsung Bae) 대한전기학회 2013 정보 및 제어 심포지엄 논문집 Vol.2013 No.10

무인차량의 자율주행을 위한 횡방향 경사 특징 기반 주행가능 영역 탐지

김준(Jun Kim),민지홍(JiHong Min),곽기호(KiHo Kwak),배건성(Keunsung Bae) 제어로봇시스템학회 2017 제어·로봇·시스템학회 논문지 Vol.23 No.2

Fixed-type surveillance and reconnaissance systems have been developed to improve the operational efficiency of the systems by being mounted and operated on a movable platform that has autonomous driving technology such as environment recognition and path planning/decision-making. Research on autonomous driving technology such as environmental awareness is also increasing as a way to improve the operability of such unmanned vehicles for surveillance. In this paper, we propose a probabilistic analysis method of the traversable area for stable running of surveillance and reconnaissance unmanned vehicles running on paved/unpaved roads. The lateral slope feature was defined for effective expression and analysis of the road environment, and the model for the travelable area was created based on the identified features using the pre-analysis information of the traversable area. The sensor data of the unit frame was transformed into a probability map of the movable area by using the generated movable area model, and the map of the travelable area that is sequentially generated was updated with reliable maps through Bayes formula based probabilistic updating. The proposed method was applied as an environment recognition method for autonomous navigation of unmanned vehicles for surveillance and reconnaissance, and obtained results of successful operation in a pavement and off-road environment.

3D LIDAR 반사율의 실험적 분석 및 보정 기법

김준(Jun Kim),곽기호(KiHo Kwak),배건성(Keunsung Bae) 제어로봇시스템학회 2017 제어·로봇·시스템학회 논문지 Vol.23 No.7

LIDAR is widely used in autonomous vehicle research fields because it offers reliable and accurate depth information. Some LIDAR sensors offer both depth information and reflectivity information of the hitting surface in a scene. However, to use the reflectivity information, multiple optical components in the LIDAR must be internally calibrated. The sensor manufacturer provides the internal parameters and correction equations, but these parameters and equations are not generalized in various environment conditions. In this paper, we address an experimental technique to analyze the reflectivity characteristics of a multi-channel 3D LIDAR, and we propose a reflectivity calibration method to minimize the effect of environmental factors. We also analyze the internal and external factors that affect the reflectivity of the LIDAR, such as the measured distances and angles, different channels and reflected materials through various experiments. The performance of the proposed approach is verified with actual environment data.

Gender difference analysis of cortical thickness in healthy young adults with surface-based methods

Im, Kiho,Lee, Jong-Min,Lee, Junki,Shin, Yong-Wook,Kim, In Young,Kwon, Jun Soo,Kim, Sun I. Elsevier 2006 NeuroImage Vol.31 No.1

<P><B>Abstract</B></P><P>We have examined gender differences of cortical thickness using a 3-D surface-based method that enables more accurate measurement in deep sulci and localized regional mapping compared to volumetric analyses. Cortical thickness was measured using a direct method for calculating the distance between corresponding vertices from inner and outer cortical surfaces. We normalized cortical surfaces using 2-D surface registration and performed diffusion smoothing to reduce the variability of folding patterns and to increase the power of the statistical analysis. In stereotaxic space, significant localized cortical thickening in women was found extensively in frontal, parietal and occipital lobes, including the superior frontal gyrus (SFG), superior parietal gyrus (SPG), inferior frontal gyrus (IFG) and postcentral gyrus (PoCG) in the left hemisphere and mostly in the parietal lobe, including the SPG in the right hemisphere. In the temporal lobe, small regions of the left and right caudal superior temporal gyrus (STG) and the left temporal pole showed significantly greater cortical thickness in women. The temporal lobe shows relatively less significant thickening than other lobes in both hemispheres. In native space, significantly greater cortical thickness in women was detected in left parietal region, including SPG and PoCG. No significant local increases of cortical thickness were observed in men in both spaces. These findings suggest statistically significant cortical thickening in women in localized anatomical regions, which is consistent with several previous studies and may support a hypothesis of sexual dimorphism.</P>