리더의 코칭리더십이 조직구성원의 창의적 행동에 미치는 영향: 그릿에 의해 조절된 전환학습의 매개효과 중심으로

신민철(Shin, Min-Cheol),오상진(Oh, Sang-Jin) 한국경영교육학회 2020 경영교육연구 Vol.35 No.2

[연구목적] 본 연구는 최근 급변하는 경영환경 속에서 지속가능경영을 발현하기 위해 창의적인 아이디어를 실행시킬 수 있는 리더의 코칭리더십을 이해하고, 코칭리더십과 창의적 행동 관계에서 그릿의 조절 효과와 전환학습의 조절된 매개효과를 실증하고, 시사점을 제공하고자 한다. [연구방법] 국내기업 종사자를 대상으로 설문 조사하였으며, 설문지는 온라인을 통한 질의응답 방식으로 688부를 배부하여 335부가 최종 분석에 사용되었다. 수집된 자료는 신뢰도와 타당성을 검증하였고, 가설검증은 부트스트랩 방식의 SPSS Process Macro 3.0을 사용하였다. [연구결과] 리더의 코칭리더십은 조직구성원의 전환학습과 창의적 행동에 유의한 영향을 미치는 것으로 나타났다. 조직구성원의 전환학습은 창의적 행동에 유의한 영향을 미쳤고, 코칭리더십과 창의적 행동 간의 관계를 매개했다. 조직구성원의 그릿과 전환학습은 리더의 코칭리더십과 그들의 창의적 행동 간의 관계에서 조절된 매개효과를 나타냈다. [연구의 시사점] 기업은 조직구성원의 창의적 행동을 증대시키기 위해서 리더의 코칭리더십 향상을 위한 다양한 투자와 노력이 필요하고, 조직구성원의 전환학습과 그릿을 높이기 위한 관심과 지원을 강화해야 하는 실무적 시사점을 제시하고 있다. [Purpose] This study was intended to identify the leader’s coaching leadership who can execute creative ideas to express sustainability management in the recent fast-changing business environment, demonstrate the moderating effect of GRIT and the moderated mediating effect of transformative learning in the relationship between coaching leadership and creative behavior. [Methodology] The survey was conducted on employees of domestic companies, and the questionnaire distributed 688 copies online and 335 copies were used for the final analysis. The data collected have been validated for reliability and validity, and the hypothesis testing uses SPSS Process Macro 3.0 by bootstrap. [Findings] The leader’s coaching leadership was shown to have a positive effect on the transformative learning and creative behavior of the organization members. The organization member’s transformative learning has had a positive impact on creative behavior, and has mediated the relationship between coaching leadership and creative behavior. The GRIT and transformative learning of organizational members have shown a moderated mediating effect in the relationship between the coaching leadership and their creative behavior. [Implications] This research presents practical implications that various investments and efforts are needed to improve the coaching leadership in order to increase the creative behavior of the members of the organization and to strengthen interest and support to enhance the transformative learning and GRIT.

Theory Building in Knowledge Utilization : A Review

오철호 한국정보사회진흥원 2004 정보화정책 Vol.11 No.2

Despite voluminous studies on knowledge utilization, the extant research provides little support for claims that particular variables affect the use of knowledge in decisive ways. This research effort has been made more complicated recently by the changing contexts of knowledge utilization. In particular, the knowledge utilization field gives remarkably little attention to the systematic accumulation of knowledge from research studies. The purpose of this study is to critically examine studies from the 1990s and to see how they cope with key issues in the field. This study specifically focuses on the question: What conceptual and empirical work has been done in the area of knowledge utilization over the past ten years? An in-depth analysis of research studies shows that the studies done in the 1990s made little conceptual and empirical advancement. In general, these studies seem to walk one step away from infancy in terms of theory building efforts and the empirical orientation of research analysis. They, however, need to improve the rigor in theory building in terms of integrating partial theories or conceptual constructs. This study also suggests a set of ways for improving the efforts of theory building.

MRC 결합의 레이크 수신기에서 채널 추정 알고리즘의 성능분석

오동진,나철훈 국립7개대학공동논문집간행위원회 2005 공업기술연구 Vol.5 No.-

In this paper, we analyze channel estimation algorithms in a RAKE receiver with MRC. There are 3 popular channel estimation algorithms, which are WMSA(Weighted Multi-Slot Averaging) algorithm, EGE(Equal Gain Estimation) algorithm. and SSE(Symbol-to-Symbol Estimation) algorithm. We analyze asynchronous IMT-2000(3GPP) which employ 3 different channel estimation algorithms by using MATLAB. We used jakes fading channel model for the analysis. From simulation results, we could observe that the performance of WMSA algorithm is better than others in low Doppler effect(3km/h). However, in the case of high Doppler effect(120km/h), the EGE algorithm is more efficient. In this case the simple estimator with EGE algorithm seems to be more useful.

흰쥐에서 중추 고장성식염 주입에 의한 승압효과에 미치는 ANP의 영향

오승호,양민준,염철호 조선대학교 1995 The Medical Journal of Chosun University Vol.20 No.1

The present study was designed to examine the effects of intracerbroventricular (ICV) administration of atrial natriuretic peptide (ANP) on the pressor response induced by ICV hypertonic NaCl in rats. Rats (male. Sprague-Dawley) weighing 220-300g were anesthetized with pentobarbital sodium (50mg/kg. IP) and their right lateral cerebral ventricle were cannulated. Both isotonic and hypertonic NaCl (0.15 M, 0.6 M and 1.2 M) were ICV (3μl/min) applied and arterial blood pressure and heart rate (HR) responses registered. Central administration of hypertonic NaCl solution caused an elevation in mean arterial pressure (MAP) and HR, while the response magnitude was comparable correlated to the NaCl concentration. The ANP (3pmol/min, ICV) alone did not cause recognizable changes in MAP. When ANP was administered with 0.6 M NaCl, however, hypertonic NaCl-induced changes in MAP were interrupted. These results indicate that ANP may have the role in central cardiovascular regulation. It is also suggested that in some conditions. ANP may act as an antipressor substance in the brain.

IEEE 802.11a 무선 LAN 시스템에서 주파수 오프셋 보상 및 채널 보상에 따른 성능 분석

오동진,나철훈 국립7개대학공동논문집간행위원회 2003 공업기술연구 Vol.3 No.-

In this paper, the simulator or WLAN system modem based on IEEE 802.11a is implemented. The performance of WLAN modem in the realistic indoor multipath channel models is analyzed, according to frequency offset compensation and channel estimation methods. The previous works for WLAN(Wireless Local Area Network) system based on OFDM(Orthogonal Frequency Division Multiplexing) is mainly individual study for independent frequency offset or symbol synchronization. For the performance evaluation of the WLAN system, indoor Rayleigh multipath channels are adopted, and the BER(Bit Error Rate) of WLAN system based on 1/2 code-rate QAM is calculated. From the simulation results, 2dB difference of Eb/No exists for on BER of 10-3 between the channel compensation case and ideal channel compensation, and zero frequency offset case.

여성요도구협착의 수술적 교정

오범석,김도완,오철규,노안식,박석산 白中央醫療院 2005 仁濟醫學 Vol.26 No.1

Objective: We describe various clinical presentations of female urethral meatal stricture, which may mimic other pelvic floor disorders and result in diagnostic delay. Diagnosis, management, and outcome results are reported Materials and Methods: We reviewed retrospectively 26 consecutive cases of female urethral meatal stricture. Patient characteristics, history, clinical presentation, symptom score, maximal flow rate, residual urine, diagnosis, management and short-term follow up are reported. Results: Mean patient age plus or minus standard deviation was 54 years. Most 21 (81%) cases were referred as diagnostic dilemmas with symptoms present for 1 month to 30 years. Mean interval between onset of symptoms to diagnosis was 5.8 years. The most common symptoms were residual urine sensation (77% of cases), frequency (54%), pelvic pain (46%), dysuria (46%), weak stream urine (27%), urgency (15%) and 17 patients (65%) have combined symptoms. 16 patients (62%) had been treated with oral and/or vaginal medication and/or psychotherapy. The female urethral meatal stricture was visible on physical examination in 21 patients (81%) and cystoscopy in 5 patients (19%). Of these visible urethral meatal stricture, 11 patients (45%) contained recurrent urinary tract infection, 9 patients (35%) contained urethral mucosal prolapse, 7 patients (27%) contained urethral diverticulum, and 3 patients (12%) contained stress urinary incontinence. 18 patients (69%) who has been treated with oral and/or vaginal medication or psychotherapy was not successfully improved. Treatment consist of urethral meatal excision and/or everted urethral mucosal excision and/or urethral diverticulum excision and/or anti-incontinence surgery when indicated. Subsequently 24 patients (92%) had improved symptom score, but 2 patient was not changed. In 9 patients new symptom developed. Conclusions: Female urethral meatal stricture have several urinary symptoms and may mimic other pelvic floor disorders. This condition should be considered in women with frequency, residual urine sensation, pelvic pain, dysuria and etc. Medical treatment is not sufficient but surgical treatment is usually simple, safe and effective in alleviation associated symptoms.

광합성세균에 의한 미생물막의 형성

오광근,이철우,전영중,이재홍 한국미생물생명공학회 ( 구 한국산업미생물학회 ) 1996 한국미생물·생명공학회지 Vol.24 No.6

홍색비유황 광합성세균인 Rhodopseudomonas capsulata를 선택하여 packed-bed reactor에서 미생물막을 형성할 때, porous ceramic bead가 다른 담체에 비해 우수하였고, 일정한 유입농도하에서 체류시간(hydraulic retention tiem, HRT)이 짧을수록 미생물막 형성이 양호하였으며, 그 때 반응기내의 세포농도는 11,400mg/l로 현탁처리시의 세포농도에 비하여 3~8배 증가하였다. PBR에서 미생물막의 형성은 cell attachment, microcolony formation, biofilm formation의 단계를 거쳐 형성되는 것으로 관찰되었으며, PBR이 FBR보다 안정적인 미생물 부착을 보였고 특히 PBR에서는 BOD용적 부하가 15gBOD/ℓ·day 이상이 되어도 미생물막의 부착비율은 90% 이상을 유지하였다. 전자현미경으로 담체의 표면 및 내부에 고정화된 광합성세균을 확인할 수 있었다. The formation of microbial films(biofilm) by a non-sulfur phototrophic bacteria, Rhodopseudomonas capsulata, on inorganic media was studied. Porous ceramic beads(PCB) were superior to other immobilizing media for the biofilm formation in a packed-bed reactor. It was found that the formation of microbial films favored a lower hydraulic retention time, showing a higher ratio of cells attatched to the media to those suspended in the solution. The cell concentration in the biofilm reactor was as high as 11,400 mg/ℓ, which is 8-folds of the cell concentration in a ordinary suspended treatment. It was observed that the formation of microbial film by R. capsulata followed a general serial process of cell attachment, microcolony formation, and biofilm formation. The microbial films thus formed was very stable even for an extremely high volumetric BOD loading rate of 15 gBOD/ℓ·day. The scanning electron micrographs of the microbial films showed that the cells were attached to both the surface and pores of the media.

지식활용의 측정에 대한 비판적 검토 : 이슈와 제안

오철호 한국정보사회진흥원 2007 정보화정책 Vol.14 No.1

지식활용 분야의 많은 연구에도 불구하고 그 동안 진행되어온 경험 연구들은 여전히 몇 가지 문제점에 직면해 있다. 그 중에서도 효과적인 경험연구의 시도와 관련하여 실질적으로 중요한 문제는 연구 대상인 지식활용에 대한 개념정의와 특히 어떻게 측정할 것인가라는 방법론적인 이슈이다. 다른 한편으로 지식활용분야는 과거연구를 바탕으로 지속적이며 체계적으로 연구결과나 경험을 축적하려는 노력이 미흡하였다. 결과적으로 많은 연구 결과들의 일관성있는 연계나 의미있는 통합의 필요성은 여전하다. 본 연구의 목적은 과거 연구 중 1990년대의 연구를 대상으로 지식활용의 측정문제를 어떻게 다루었는지를 개괄적으로 정리하고 체계적으로 분석하는 데 있다. 보다 구체적으로 이 연구가 검토하고자 하는 연구질문은 다음과 같다. (1) 90년대 이후로 지식활용의 개념화 작업이 어떻게 이루어졌는가? (2) 지식활용의 측정과 관련하여 보다 개선된 방법론적 시도가 이루어졌는가? 과거연구에 대한 검토결과를 보면 90년대의 연구들 역시 지식활용의 개념화나 보다 적합한 측정 노력이 미흡하였다는 점을 발견할 수 있었다. 결론적으로, 본 연구는 지식활용측정을 위한 새로운 대안으로 과정중심 접근/측정을 제시하며 새로운 대안에 입각한 실질적인 후속 연구를 기대한다. Despite voluminous studies on knowledge utilization, we can easily find that empirical studies in the area of knowledge utilization have suffered from several critical problems. Most importantly, there appears to be serious conceptual and methodological gaps that need to be filled. Further, the knowledge utilization field gives remarkably little attention to the systematic accumulation of knowledge from research studies. The purpose of this study is to critically examine studies from the 1990s and to see how they cope with the issue of measuring knowledge utilization and to offer some suggestions for future studies. In this regard, this study focuses on the two questions: What conceptual work has been done in the area of knowledge utilization over the past ten years? What have been the major advances in the area of measuring knowledge utilization? An in-depth analysis of research studies shows that the studies done in the 1990s made little conceptual advancement. Consequently, the field of knowledge utilization still needs to improve methodology, especially clarifying the concept of use and developing relevant measures of it. As an alternative way of measuring knowledge utilization this study offers a process approach.

한국인 당뇨병 및 비당뇨병 환자에서의 뇌혈관 질환 유무에 따른 PAI-1 촉진자 유전자형과 인슐린저항성에 관한 연구

오승준,김영설,박철영,김덕윤,김성운,양인명,김진우,최영길,팽정령,정경천 대한비만학회 2000 The Korean journal of obesity Vol.9 No.2

연구배경 : 혈전현상을 특징으로 하는 질환에서는 Plasminogen activator inhibitor-1 (PAI-1) 이 높은 활성도를 보이는데, PAI-1 치는 당뇨병, 심근경색증, 비만 등에서 높다고 밝혀진 바 있다. 또한 당뇨병 환자들의 합병증의 주요한 병인은 죽상경화증으로 혈전현상이 특징인 질환에서 증가하는 PAI-1이 당뇨병 환자에서 높다. 목적 : 정상인에서의 PAI-1 유전자 촉진자의 유전자형의 분포 및 혈액농도를 관찰하고, 당뇨병 및 뇌혈관 질환 환자군에서의 PAI-1 유전자 촉진자 유전자형의 분포 및 혈액농도를 측정하여 정상인과 차이점을 알아본다. 당뇨병 환자군에서의 혈장 PAI-1 치와 인슐린 저항성, 전구 인슐린 등과의 상관관계를 살펴보고, 인슐린저항성과 대혈관질환의 지표로 사용될 수 있는지 알아보았다. 방법 : 대상으로는 정상인 76명, 제2형 당뇨병 환자 56명, 뇌혈관질환이 동반된 제2형 당뇨병 환자 48명, 뇌혈관질환 환자 51명을 선택하여, 환자의 혈액에서 인슐린, 공복시 혈당, 전구인슐린, 중성지방, 총콜레스테롤 및 기타 생화학 검사 및 이학적 검사를 시행하였다. 환자의 DNA를 채취하여 전사개시 -675bp를 포함하는 대립형질 특이 시발체를 사용하여 중합효소 연쇄 반응을 실시하여, 그 유전자형을 판독하였다. 결과 : 정상 대조군 76명 (46.4±11.1세), 2형 당뇨병 환자 56명 (58.3±12.6세), 뇌경색증 환자 51명 (63.1±13.2세) 대상으로 하였다. PAI-1 촉진자 유전자형의 (4G/4G, 4G/5G, 5G/5G)빈도는 정상 대조군이 각각 23.7%, 75.0%, 1.3%, 뇌경색 환자군이 19.6%, 66.7%, 13.7%, 뇌경색이 동반된 당뇨병 환자군이 33.3%, 58.3%, 8.3% 였다. (X2=12.6, p=0.05). 이러한 사실은 서구인에 비해 4G/4G, 5G/5G 동형 유전자형이 낮은 결과였다. 각 군별 혈장 PAI-1 농도는 정상 대조군 13.4, 1.8 ~ 65.2 ng/mL (중앙값 , 범위 ) 2형 당뇨병 환자군 14.4, 2.9 ~ 47.8 ng/mL, 뇌경색 환자군 21.9, 6.2 ~ 154.7 ng/mL , 뇌경색이 동반된 2형 당뇨병 환자군 28.8, 3.2 ~ 139.3 ng/mL 로 차이를 보였다 (p=0.000). 전체 대상에서 PAI-1 촉진자 부위의 유전자형에 따른 PAI-1 활성도와 항원 농도는 차이를 보이지 않았다. 그러나 PAI-1 활성도는 혈중 중성지방, 전구인슐린, 체질량지수와 독립적인 상관관계를 보였다 (p=0.000, p=0.000 and p=0.005). 결론 : 결론적으로 PAI-1 촉진자 부위의 유전자형은 뇌경색증의 지표는 아니며, PAI-1 활성도를 결정짓는 인자는 유전적 요인보다는 혈중 중성지방, 전구 인슐린, 체질량지수와 같은 대사적 요인으로 생각된다. Plasminogen activator inhibitor-1 (PAI-1) is known be related to insulin resistance and several components of the large vascular disease. Notably, the high frequencies of diseases such as coronary heart disease or stroke are related to type 2 diabetes complications. We studied to find out whether the PAI-1 promother genotype could be a marker for cerebral infarction in type 2 patients. Subject patients were; 56 type 2 diabetics (age 58.3±12.6), 51 patients with cerebral infarction (age 63.1±13.2), 48 type 2 diabetics with cerebral infarction (age 64.8±9.3) , and 76 healthy control (age 46.4±11.1). The 4G/5G genotype of PAI-1 promoter was evaluated by polymerase chain reaction and endonuclease digestion. PAI-1 promoter genotype frequency (4G/4G, 4G/5G, 5G/5G) was 23.7%, 75.0% and 1.3% in healthy control, 17.9%, 67.9% and 14.3% in type 2 diabetes patients, 19.6%, 66.7% and 13.7% in cerebral infarction patients, 33.3%, 58.3% and 8.3% in type 2 diabetics with cerebral infarction (X^2=12.6, p=0.05). This finding is lower in frequency of 5G/5G homozygote than that reported in Caucasians. The plasma PAI-1 concentrations according to the disease were 13.4, 1.8 ~ 65.2 ng/mL (median, range) for healthy control, 14.4, 2.9 ~ 47.8 ng/mL for type 2 diabetes, 21.9 6.2 ~ 154.7 ng/mL for cerebral infarction , and 28.8, 3.2 ~ 139.3 ng/mL, for cerebral infarction with type 2 diabetes (p=0.000). In the all subjects, PAI-1 concentration and activity of PAI-1 promoter genotype did not show any significant difference. However, the PAI-1 activity was independently associated with serum triglyceride level, plasma proinsulin and BMI (p=0.000, p=0.000 and p=0.005 respectively). We concluded that PAI-1 genotype is not a marker for the cerebral infarction ; however, the genotype is related to PAI-1 concentration , and therefore it seems to be that metabolic factors such as triglyceride level or plasma proinsulin or BMI are more in relations with determining the PAI-1 concentration than the genotype.

순천대학교 인문사회과학대학 학부제 도입 및 특성화 방안 연구

오원균,박철우 순천대학교 1996 大學發展硏究論文集 Vol.2 No.-

This paper examines the propriety of adopting the faculty systems within the college of humanities and social sciences at Sunchon National University. It also proposes the strategies for the development of the college. Several empiracal evidences were gathered and examined from the other universities which had been running the faculty systems. The prospects of the 21st century´s Kwangyang Bay and the ideas for the college development were reflected in this paper. The results of this paper are summarized as follows ; ㆍBecause of the changes in the educational environment, there are so many kinds of threat which impair current status of Sunchon National University. ㆍAmong other factors which affect the development of college, the most important factors is the constituents´ attitude of mind toward college development. ㆍThere is no need of faculty systems to integrate the departments within the college. Because each department has its´ own characteristic, and it is difficult to find the similarities between departments in terms of curriculum. ㆍThe specialization strategies to support a specific department is not desirable. Because of short history relatively, there isn´t any department which has its´own competitive power. Instead of those strategies, each department should be treated equally until it begins to have its´ own competitive power. ㆍTo enhance a balanced development in the area of humanities, the college should have the departments such as Korean language and literature, English language and literature. ㆍIn order to ensure the high-quality education, the coollege should have several supporting systems that every student will finish with a good command of English and adaptability to field work.