숙박 앱에서 온라인 리뷰품질이 구매결정에 미치는 영향

김용순,서헌 (사)한국관광레저학회 2022 관광레저연구 Vol.34 No.4

The purpose of this study is to examine the casual relationships among quality of online reviews, perceived value, perceived risk, and purchase decisions. Many consumers consult online reviews before making travel arrangements. Due to the experiential nature of travel-related products, online reviews have become an increasingly popular information source in travel planning and have a profound effect on consumers’ buying decisions, particularly in Lodging booking. This study employed a questionnaire survey to test the hypotheses. In order to empirically analyze this, based on the survey responses of 274 consumers, we analyzed the data using SPSS 24.0 and AMOS 21.0. The results of this study are as follows. First, quality of online reviews was positively related to perceived value and purchase decisions. Second, perceived value was positively related to purchase decisions. Third, quality of online reviews was negatively related to perceived risk. Fourth, one of the significant finding was that the link between quality of online reviews and purchase decisions mediated by a singular mediator of perceived value. Finally, the summary, implications and limitations of the results with the future tasks were suggested.

Effect of Potassium Iodide on Erythrosine-Mediated Photodynamic Therapy on Streptococcus Mutans Biofilms

김용순,박호원,이주현,김해니,이시영 대한소아치과학회 2022 大韓小兒齒科學會誌 Vol.49 No.3

The aim of this in-vitro study is to evaluate the effect of potassium iodide (KI) on erythrosine-mediated photodynamic therapy (PDT) against Streptococcus mutans biofilms. S. mutans ATCC 25175 was cultured to form a biofilm on a hydroxyapatite disk. After diluting erythrosine to 20 μM and KI to 10, 50, and 100 mM, respectively, PDT was performed. The number of surviving bacteria was calculated as colony forming units (CFU)/mL and the statistical significance of the difference between groups was confirmed by Bonferroni post-hoc analysis. Cell viability was visually evaluated using confocal laser scanning microscopy (CLSM). As a result of the experiment, a significant decrease (p < 0.05) in CFU was observed in the experimental groups in which PDT was performed after applying KI regardless of the concentration of KI. In addition, a significant reduction (p < 0.05) in CFU was observed in the experimental group to which 100 mM KI was applied compared to 10 mM KI. The same results were confirmed when observing CLSM. KI significantly improved the efficacy of erythrosine-mediated PDT on S. mutans biofilms at all concentrations. This may compensate for the low sensitivity of PDT to biofilm-state bacteria strains, but it is necessary to establish an optimal clinical protocol through further research.

재난 관련 위기관리 표준매뉴얼 개선에 관한 연구

김용순,최돈묵 한국화재소방학회 2019 한국화재소방학회 학술대회 논문집 Vol.2019 No.추계

호텔기업에서 직속상사의 신뢰가 종사원의 조직시민행동에 미치는 영향

김용순 한국관광서비스학회 2003 관광서비스연구 Vol.3 No.2

화재관련 위기관리 표준매뉴얼의 위기경보 수준에 관한 연구

김용순,최돈묵 한국화재소방학회 2018 한국화재소방학회 학술대회 논문집 Vol.2018 No.추계

포스타 : 가옥형태별 집먼지진드기 서식에 영향 미치는 실내환경요인 분석

김용순,박지원,송영신,박중원,김철우,홍천수 대한천식 및 알레르기학회 ( 구 대한알레르기학회 ) 2001 춘계학술대회 초록집 Vol.2001 No.-

기장해수담수화로 양질의 수돗물을 공급하다.

김용순 대한지방행정공제회 2016 도시문제 Vol.51 No.568

Twenty-Eight-Day Repeated Inhalation Toxicity Study of Nano-Sized Neodymium Oxide in Male Sprague-Dawley Rats

김용순,임철홍,신서호,김종춘 한국독성학회 2017 Toxicological Research Vol.33 No.3

Neodymium is a future-oriented material due to its unique properties, and its use is increasing in various industrial fields worldwide. However, the toxicity caused by repeated exposure to this metal has not been studied in detail thus far. The present study was carried out to investigate the potential inhalation toxicity of nano-sized neodymium oxide (Nd2O3) following a 28-day repeated inhalation exposure in male Sprague- Dawley rats. Male rats were exposed to nano-sized Nd2O3-containing aerosols via a nose-only inhalation system at doses of 0 mg/m3, 0.5 mg/m3, 2.5 mg/m3, and 10 mg/m3 for 6 hr/day, 5 days/week over a 28-day period, followed by a 28-day recovery period. During the experimental period, clinical signs, body weight, hematologic parameters, serum biochemical parameters, necropsy findings, organ weight, and histopathological findings were examined; neodymium distribution in the major organs and blood, bronchoalveolar lavage fluid (BALF), and oxidative stress in lung tissues were analyzed. Most of the neodymium was found to be deposited in lung tissues, showing a dose-dependent relationship. Infiltration of inflammatory cells and pulmonary alveolar proteinosis (PAP) were the main observations of lung histopathology. Infiltration of inflammatory cells was observed in the 2.5 mg/m3 and higher dose treatment groups. PAP was observed in all treatment groups accompanied by an increase in lung weight, but was observed to a lesser extent in the 0.5 mg/m3 treatment group. In BALF analysis, total cell counts, including macrophages and neutrophils, lactate dehydrogenase, albumin, interleukin-6, and tumor necrosis factor-alpha, increased significantly in all treatment groups. After a 4-week recovery period, these changes were generally reversed in the 0.5 mg/m3 group, but were exacerbated in the 10 mg/m3 group. The lowest-observed-adverse-effect concentration of nano-sized Nd2O3 was determined to be 0.5 mg/m3, and the target organ was determined to be the lung, under the present experimental conditions in male rats.

호텔기업에서 임파워먼트가 서비스 제공수준에 미치는 영향

김용순 한국콘텐츠학회 2005 한국콘텐츠학회논문지 Vol.5 No.5

This paper examines relationships among empowerment, service delivery levels, and mediated variables. I chose the job satisfaction and commitment to the organization. The analysis of mediated effect tested mediation using the three-step mediated regression approach(Baron & Kenny, 1986). Data were collected by 235 full time employees. The results of regression analysis is as follows: First, empowerment of hotel employees affects job satisfaction. Secondly, empowerment of hotel employees affects commitments to the organization. Thirdly, empowerment of hotel employees affects service delivery levels. The results of three-step mediated regression supported mediated effects between service delivery levels and its antecedents. The result of the study implies that empowerment is a crucial factor in the explanation of service delivery levels and hotel managers are able to motivate employees' service delivery levels by paying more attentions to employees' job satisfaction and commitment to the organization. 호텔기업은 양질의 서비스를 제공하기 위해 종사원의 행위에 보다 많은 관심을 가져야 한다. 호텔의 특성상 서비스품질은 종사원들이 어떻게 서비스를 수행하는 가에 달려있다. 즉 호텔종사원이 서비스 현장에서 신속하게 의사결정을 할 수 있는 시스템이 절실히 요구된다. 그렇게 하기 위해서는 종사원의 임파워먼트가 대단히 중요하다. 따라서 본 연구는 호텔종사원의 임파워먼트와 서비스제공수준의 관계를 분석하고 이들의 관계에서 직무만족과 조직몰입이 매개역할을 하는 가를 파악하려고 하였다. 매개효과의 조건충족에 대한 분석은 Baron 과 Kenny(1986)가 제시한 삼 단계의 매개효과 분석과정을 이용하였다. 235명의 호텔종사원을 대상으로 한 분석결과 설정된 가설은 모두 지지되는 것으로 판명되었다. 분석결과에 따르면, 임파워먼트는 직무만족, 조직몰입, 서비스제공수준에 영향을 미치는 것으로 나타났다. 또한 임파워먼트와 서비스제공수준의 관계에서 직무만족, 조직몰입 각각은 매개의 역할을 하는 것으로 검증되었다.

Effects of Didecyldimethylammonium Chloride (DDAC) on Sprague-Dawley Rats after 13 Weeks of Inhalation Exposure

김용순,이성배,임철홍 한국독성학회 2017 Toxicological Research Vol.33 No.1

Didecyldimethylammonium chloride (DDAC) is used in many types of biocidal products including tableware, carpets, humidifiers, and swimming pools, etc. In spite of increased chances of DDAC exposure through inhalation, studies on the inhalation toxicity of DDAC are not common even though the toxicity of DDAC might be significantly higher if it were to be administered through routes other than the respiratory system. DDAC aerosols were exposed to Sprague-Dawley rats in whole body exposure chambers for a duration of 13 weeks. The Mass Median Aerodynamic Diameters of the DDAC aerosol were 0.63 μm, 0.81 μm, and 1.65 μm, and the geometric standard deviations were 1.62, 1.65, and 1.65 in the low (0.11 ± 0.06 mg/m3), the middle (0.36 ± 0.20 mg/m3) and the high (1.41 ± 0.71 mg/m3) exposure groups, respectively. Body weight was confirmed to be clearly influenced by exposure to DDAC and mean body weight was approximately 35% lower in the high (1.41 ± 0.71 mg/m3) male group and 15% lower in the high (1.41 ± 0.71 mg/m3) female group compared to that of the control group. In the bronchoalveolar lavage fluid assay, the levels of albumin and lactate dehydrogenase had no effect on DDAC exposure. The lung weight increased for the middle (0.36 ± 0.20 mg/m3) and the high (1.41 ± 0.71 mg/m3) concentrations of the DDAC exposure group, and inflammatory cell infiltration and interstitial pneumonia were partially observed in the lungs of the middle (0.36 ± 0.20 mg/m3) and the high (1.41 ± 0.71 mg/m3) exposure groups. However, severe histopathological symptoms, including proteinosis and/or fibrosis, were not found. Based on the results of the changes in the body weight and lung weight, it is considered that the NOAEL (no-observed adverse effect) level for the 13-week exposure duration is 0.11 mg/m3.