http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 윤정구 ( Jung Koo Yoon ) (검색결과 7 건)
- 무료
- 기관 내 무료
- 유료
-
-
-
기업의 사회적 책임 활동에 대한 정당성 인식이 종업원의 조직시민행동에 미치는 영향에 관한 연구: 의 비전적 리더십의 조절효과를 중심으로 CEO
이수정 ( Soo Jung Lee ),윤정구 ( Jeong Koo Yoon ) 한국지식경영학회 2012 지식경영연구 Vol.13 No.4
This study examines whether employees` legitimacy perceptions of corporate social responsibility (CSR) affect their organizational citizenship behavior (OCB). It also investigates whether CEO`s visionary leadership can moderate this causal relationship. CSR legitimacy is defined in the current study as employees` personal beliefs about the appropriateness of corporate CSR activities. In fact, employees evaluate the appropriateness of CSR activity based on its consistency with corporate philosophy (e.g. corporate mission, vision, and values) which functions as employees` referencial belief structure. If CSR activity is perceived as one of firm`s effort to fulfill its mission, vision, and values, which means that espoused theory and theory-in-use of CSR activity are congruent, employees will consider firm`s CSR activity as legitimate. If, however, employees think that CSR activity is not congruent with firm`s mission, vision, and values, which means that espoused theory and theory-in-use of CSR activity are inconsistent, they will perceive that CSR activity of their firm is not legitimate. In the current study, we propose that employees who perceive that the CSR activity of their firm is legitimate are more likely to engage in OCB. In addition, we hypothesize that CEO`s visionary leadership can strengthen the positive effect of employees`perception of CSR legitimacy on their OCB. We tested these hypotheses with the sample of 383 employees from 32 companies listed on DJSI (Dow Jones Sustainability Index) Korea 2009. We employed the HLM (hierarchical linear modeling) program to decompose the multi-level random effects. We found that CSR legitimacy perceptions of employees increase employees` OCB and that CEO`s visionary leadership moderates this relationship. We discussed implications of these findings in more detail.
-
이수정(Soo Jung Lee),윤정구(Jeong Koo Yoon) 한국경영학회 2011 經營學硏究 Vol.40 No.4
Most research on corporate social responsibility(CSR) has primarily taken the perspectives of investors or customers, who are the external stakeholders of the company. The research focus is the effects of CSR activities on the company`s financial performance and customers` perceived brand image or their intention to buy. The neglected perspective, that of employees, however, is critical to understand how CSR affects company performance. The success of the company is critically mediated by employees who interpret the activity of corporate CSR and mobilize commitments and work motivation based on their interpretation. Despite the importance of employees in corporate CSR, there are few studies that empirically examine the effects of CSR through the lens of the employees. Furthermore, previous researchers who explored the effects of CSR taking the employees` perspectives have not recognized the difference between external stakeholders and employees. Since employees as internal stakeholder can have relatively more access to information about the company intention for CSR than can external stakeholders, they derive different values and goals by interpreting this information and respond differently from investors or customers. The purpose of this study is to examine whether employees` perceptions of CSR legitimacy influence on their organizational citizenship behavior(OCB) and counterproductive work behavior (CWB). We conceptualizes legitimacy as two components: external legitimacy and internal legitimacy. When employees attribute the motive of CSR to firm`s competitive advantage, they will interpret the firm`s CSR as a window-dressing corporate behavior, which is explained by external legitimacy. In contrast, employees will interpret the firm`s CSR to be based on the firm`s authentic behavior when they attribute the motive of CSR to attain firms` mission or vision, which is consistent with the concept of internal legitimacy. It is predicted that employees will engage in more OCB and less CWB when they perceive that CSR reflects internal legitimacy. On the other hand, it is hypothesized that employees will exhibit more CWB and less OCB when they perceive that CSR reflects external legitimacy. In addition, it is proposed that employees` cynicism about CSR will mediate the relationships between employees` perceptions of CSR legitimacy and their OCB and CWB. We tested the hypotheses with the sample of 399 employees from 38 companies that represent the population of Dow Jones Sustainability Indexes(DJSI) Korea 2009 survey. The results of LISREL analysis confirmed that all the predictions of this study were supported. The internal legitimacy increases organizational citizenship behavior and decreases the counterproductive work behavior through dampening the perceptions of cynicism on CSR. In contrast, the external legitimacy decreases organizational citizenship behavior and increases the counterproductive work behavior by intensifying the perceptions of cynicism on CSR. We indicated the effects reflected the janus effects, because legitimacy play two distinct roles on corporate CSR. We highlight that CSR enhances OCB and reduce counterproductive work behavior when employees perceive the authentic motive with internal legitimacy. However, it shows a ugly face when employees conceive it as reflecting purely instrumental motives with external legitimacy.
-
-
김동철,이영호,윤정구 大韓成形外科學會 1991 Archives of Plastic Surgery Vol.18 No.3
Skin autograft is an ideal procedure to resurface burn wounds of patients with extensive burns. However, since the availability of autogenous skin tissue is practically limited in such patients, many attempts were made by researchers to obtain expanded tissue or cell sheets from tiny skin fragments using various in vitro culture techniques. Nevertheless, the effective means for such cultures have not been fully established. The present study was undertaken to investigate the most effective procedures for in vitro cultivation of human epidermal cells using 113 skin fragments from 111 normal subjects. Growth characteristics of cultured cells as well as the effects of various biological and chemical agents on their growth were evaluated. The results were summarized as follows: 1. Treatment of minced skin fragments with 0.25% trypsin-0.1% ethylenediaminetetraacetic acid(EDTA) resulted in an active proliferation of epithelioid cells around the fragments, whereas similar treatment with 0.05% collagenase showed an overgrowth of fibroblasts. In control cutures of the fragments not treated with enzymes, little growth of cells was observed. 2. In culture of skin fragments treated with 0.25% trypsin-0.1% EDTA, the outgrowth of epidermal cells from the edges of explants was observed at 5 days of culture, and thereafter rapidly multiplied and formed an extended cell layer which showed sporadic multiliayered cells colonies at 10-14 days. In cases where the culture explants were attached closely, cell located in the periphery of the outgrown monolayers from each fragment formed bridges and ultimately the cell monolayers were fused together to form doubly expanded cell layers. 3. Detections of keratin in cultured cells, using an immunoperoxidase assay, have revealed that cells showing a typical pink-brown color as a positive reation were located mostly in the upper portion of multilayered cell colonies. 4. Crude interleukin-6 added in culture media significantly increased the proliferation of epidermal cells, whereas 2-mercaptoethanol, cholera toxin, epidermal growth factor, recombinant interleukin-1, recombinant tumor necrosis factor had little or no effects. 5. Skin fragments from thigh or foreskin with thin split thickness showed relatively increased proliferations of epidermal cells. From these results, it can be concluded that the optimal in vitro culture condition to obtain expanded human epidermal cells was the seeding of the minced skin fragments closely following treatment with 0.25% trypsin-0.1% EDTA. This could be achieved more effectively by the addition of crude interleukin-6 in the culture medium.
-
만성 B형 활동성 간염에서 poly(A). poly(U)의 치료 효과
김원호,강진경,박인서,문영명,전재윤,한광협,함기백,윤정구,최흥재,임대순 대한소화기학회 1992 대한소화기학회지 Vol.24 No.3
The two major approaches to the treatment of chronic hepatitis B are 1) directed toward the eradication of the virus and 2) designed to modulate cellular and humoral immunity. Progress has been made in the development of antiviral chemotherapeutic agents for hepatitis B, but as yet no safe and reliably effective treatment or combmations of treatments are available. It has been demonstrated that interferon is useful in suppressing hepatitis B viral replication, but the relatively low response rate of Asian patients to interferon treatment has been documented due to the fact that mostly they acguired infections perinatally or during childhood. Poly(A). poly(U) is a double stranded helical ribopolyuncleotide complex, which stimulates both humoral and cell mediated immune response, and enhances the splenic NK activity as well as induces the production of the interferon. In this study, we have measured sequentially the leveils of alanine aminotransferase (ALT) and 2, 5-oligoadenylate synthetase (2-5 AS) activities and hepatitis B viral markers in patients with histologically proven chronic active heaptitis after weekly intravenous injection of poly(A). poly(U) to find out that poly(A). poly(U) may be used as the therapeutic agent in the treatment of chronic active hepatitis B. The results were as follows: ALT levels after the weekly administrations of poly(A).poly(U) have declined significantly to the normal level except one case as times passed, especially after 5 weeks. Serum 2-5 AS activities were elevated significantly after the administration of poly(A).poly(U). The complete responses were noted in four cases out of eleven cases (36.4%) until 5 months after discontinuance of poly(A).poly(U). The partial responses were noted in five cases (45.5%). No specific side effects were noted except the light-headness just one time in only one case. In conclusion, the administration of poly(A).poly(U) in the patients with chronic active hepatitis B seems to be effective, simple and safe method, although more extensive and detailed immunologic researches are required.
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
