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A Systematic Literature Review on Service Quality: Bibliomertics and Network Analysis (서비스 품질의 체계적 문헌 조사 연구: 계량서지학과 네트워크 분석을 중심으로)

  • Jeong, EuiBeom;Park, Jinsoo
    • Journal of Korean Society for Quality Management
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    • v.47 no.2
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    • pp.327-344
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    • 2019
  • Purpose: This study aims to conduct a systematic literature review to suitably identify wide and specific issues and topics on service quality in supply chain. Methods: This study is to investigate service quality in supply chain research using a systematic literature review methodology. In order to extract influential journals and papers, we used the SJR impact factor provided by the SCOPUS database. The collected 169 papers were analyzed using bibliometric analysis, citation analysis as well as keywords network. Results: We conducted a bibliometric analysis to identify top authors contributing to service quality in supply chain and their issues, and further examined important keywords and new emerging keywords. In addition, we extracted five influential papers by PageRank to clarify critical issues and divided into five clusters to identify topics of service quality in supply chain by using network-based approach. In order to examine comprehensive issues and topics of service quality in supply chain, we constructed a keyword network to observe difference in the classification of important keywords across network centrality measures. Conclusion: Our study reviewed literature on service quality in supply chain and explored the future directions and trends of service quality in supply chain.

An analysis of design for a branding strategy of online shopping mall for women in their 20s focusing on the main homepage (20대 여성복 온라인 쇼핑몰의 브랜드 전략을 위한 메인 홈페이지 디자인 분석)

  • Jeong, Hwa-Yeon
    • Journal of the Korea Fashion and Costume Design Association
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    • v.20 no.4
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    • pp.131-146
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    • 2018
  • In this study, five women's fashion shopping mall companies were selected as the subjects based on the number of searches per month for analyzing website design of online shopping mall for women in their twenties. Design characteristics are divided into three aspects such as structural, visual, and customer service, and the results are as follow. First, from the structural perspective, the main navigation area and global navigation area of most shopping malls are arranged at the top center, and below them, the main image, the banner area, and the content area are arranged in order. Looking at the visual aspect, the logo is mostly written in a black text, the colors used on the main page were only one or two colors such as pink-based, gray-based, and red. Finally, from the customer service aspect, most shopping malls were encouraging buyers to place celebrity sponsorship, videos using products, self made products, and best products in the banner area. The results of this study are to present the direction of design for the founders who intend to operate the women' fashion shopping mall in future, and provide basic data for online shopping mall design research.

Improving the Yield of Semiconductor Manufacturing Processes using Clustering Analysis and Response Surface Method (군집분석 및 반응표면분석법을 활용한 반도체 공정 수율향상에 관한 연구)

  • Koh, Kwan Ju;Kim, Na Yeon;Kim, Yong Soo
    • Journal of Korean Society for Quality Management
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    • v.47 no.2
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    • pp.381-395
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    • 2019
  • Purpose: This study aims to conduct a systematic literature review to suitably identify wide and specific issues and topics on service quality in supply chain. Methods: This study is to investigate service quality in supply chain research using a systematic literature review methodology. In order to extract influential journals and papers, we used the SJR impact factor provided by the SCOPUS database. The collected 169 papers were analyzed using bibliometric analysis, citation analysis as well as keywords network. Results: We conducted a bibliometric analysis to identify top authors contributing to service quality in supply chain and their issues, and further examined important keywords and new emerging keywords. In addition, we extracted five influential papers by PageRank to clarify critical issues and divided into five clusters to identify topics of service quality in supply chain by using network-based approach. In order to examine comprehensive issues and topics of service quality in supply chain, we constructed a keyword network to observe difference in the classification of important keywords across network centrality measures. Conclusion: Our study reviewed literature on service quality in supply chain and explored the future directions and trends of service quality in supply chain.

A Study on the Provision of Welfare Service Information in Public Libraries (공공도서관의 복지서비스정보 제공에 관한 연구)

  • Young-Seok Kim
    • Journal of the Korean Society for Library and Information Science
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    • v.57 no.1
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    • pp.387-408
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    • 2023
  • This study aims to discuss the necessity of providing welfare service information in public libraries, and to seek methods to efficiently collect, select, and provide welfare information. To conduct the research, literature review, case study, survey, and interview were conducted. It was revealed that 86.7% of the research participants agreed with the provision of welfare information in public libraries. Welfare information can be divided into four types according to the subject of production. The collection and selection of welfare information differs according to the four types of the information. Libraries provide welfare information with different components of the information depending on the types of the information and libraries. Welfare information is provided through the library homepage, and in this case, welfare information is posted on the homepage using the form of a web page and a bulletin board.

A Study on Interest Issues Using Social Media New (소셜미디어 뉴스를 이용한 관심 이슈 연구)

  • Kwak, Noh Young;Lee, Moon Bong
    • The Journal of Information Systems
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    • v.32 no.2
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    • pp.177-190
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    • 2023
  • Purpose Recently, as a new business marketing tool, short form content focused on fun and interest has been shared as hashtags. By extracting positive and negative keywords from media audiences through comment analysis of social media news, various stakeholders aim to quickly and easily grasp users' opinions on major news. Design/methodology/approach YouTube videos were searched using the YouTube Data API and the results were collected. Video comments were crawled and implemented as HTML elements, and the collection results were checked on the web page. The collected data consisted of video thumbnails, titles, contents, and comments. Comments were word tokenized with the R program, comparing positive and negative dictionaries, and then quantifying polarity. In addition, social network analysis was conducted using divided positive and negative comments, and the results of centrality analysis and visualization were confirmed. Findings Social media users' opinions on issue news were confirmed by analyzing and visualizing the centrality of keywords through social network analysis by dividing comments into positive and negative. As a result of the analysis, it was found that negative objective reviews had the highest effect on information usefulness. In this way, previous studies have been reaffirmed that online negative information has a strong effect on personal decision-making. Corporate marketers will analyze user comments on social network services (SNS) to detect negative opinions about products or corporate images, which will serve as an opportunity to satisfy customers' needs.

The effect of the occlusion of the left bronchial artery on the production of HSP70 in cat lung (고양이의 기관지 동맥의 결찰이 폐조직내 열단백질 70의 생성에 미치는 효과)

  • Yun, Sang Won;Rheu, Nam Soo;Cho, Dong Il;Nam, Hyun Jung;Sung, Back Kil;Na, Heung Sik;Hong, Seung Kil
    • Tuberculosis and Respiratory Diseases
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    • v.44 no.1
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    • pp.175-182
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    • 1997
  • Several stresses are known to induce synthesis of heat shock protein The present study was performed to see whether pulmonary ischemia, induced by the bronchial artery occlusion, produced HSP70 in cat lung. To This aim, we compared experimental and control groups of cats with respect to the HSP70 production in the lung. Experimental animals were subjected to 10-min bronchial artery occlusion followed by reperfusion. The interval between the end of the occlusion and the end of the reperfusion was 1 hour, 4 hours and 8 hours, whereas control animal was not subjected 10 any manipulation except anesthesia. According to the interval differences, experimental animals were divided into 1HR, 4HRs and 8HRs groups. To determine The induction of HSP70 in each group, total proteins of lung tissues were extracted and separated by PAGE electrophoresis. Immunoblotting with a mouse monoclonal anti -HSP70 IgG antibody revealed that HSP70 was not detected in the pulmonary tissues resected from control, 1HR or 4HRs groups. In contrast. HSP70 expression in 8HRs group was marked. These results suggest that pulmonary ischemia by the bronchial artery occlusion produces HSP70 in a delayed manner.

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Genetic Variation of High Molecular Weight Glutenin (HMW-Glu) Subunit in Korean Wheat

  • Hong, Byung-Hee;Park, Chul-Soo
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.43 no.4
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    • pp.259-263
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    • 1998
  • High molecular weight glutenin (HMW-Glu) subunit compositions of 73 Korean wheat cultivars and experimental lines were evaluated by using one dimensional sodium dodecyl sulfate-polyacrylamide gel electrophoresis. This method is suitable for obtaining a good resolution of 1Dx2 and 1Ax2$^*$ without adverse effects on separation of other HMW-Glu subunits. Korean wheats examined in this study could be divided into 15 different groups on the basis of HMW-Glu subunit compositions. From the wheat lines tested, it was identified that there were three alleles at the Glu-Al, five at the Glu-Bl and three at the Glu-D1 loci. The null allele of the Glu-Al was occurred in high frequency (79.4%), while low frequencies for 1Ax1 (12.3%) and 1Ax2$^*$(8.2%) were found. High frequency (75.3%) of the subunit pairs of 1Bx7+1By8 at the Glu-Bl loci compared with other subunits was found. The frequencies of subunits 1Dx2. 2+1Dy12 and 1Dx2+1Dy12 from the Glu-D1 loci were 54. 8% and 37.0%, respectively. However, a few Korean wheat lines (8.2%) carried 1Dx5 + 1Dy10 subunit pair which are responsible for good breadmaking quality. The information of HMW-Glu subunit compositions provide a useful tool to characterize wheat lines, and can be directly used in selection of breeding lines of different end-use properties.

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Molecular Mechanism of Atopic Dermatitis Induction Following Sensitization and Challenge with 2,4-Dinitrochlorobenzene in Mouse Skin Tissue

  • Kim, JiYoun;Lee, JaeHee;Shin, SoJung;Cho, AhRang;Heo, Yong
    • Toxicological Research
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    • v.34 no.1
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    • pp.7-12
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    • 2018
  • Laboratory animal models have been developed to investigate preventive or therapeutic effect of medicinal products, or occurrence or progression mechanism of atopic dermatitis (AD), a pruritic and persistent inflammatory skin disease. The murine model with immunologic phenomena resembling human AD was introduced, which demonstrated skewedness toward predominance of type-2 helper T cell reactivity and pathophysiological changes similar as human AD following 2,4-dinitrochlorobenzene (DNCB) sensitization and challenge. Molecular mechanism on the DNCB-mediated AD was further evaluated. Skin tissues were collected from mice treated with DNCB, and each tissue was equally divided into two sections; one for protein and the other for mRNA analysis. Expression of filaggrin, an important protein for keratinocyte integrity, was evaluated through SDS-PAGE. Level of mRNA expression for cytokines was determined through semi-quantitative reverse transcriptase polymerase chain reaction. Expression of filaggrin protein was significantly enhanced in the mice treated with DNCB compared with the vehicle (acetone : olive oil = 4 : 1 mixture) treatment group or the normal group without any treatment. Level of tumor necrosis factor-alpha and interleukin-18 mRNA expression, cytokines involved in activity of type-1 helper T ($T_H1$) cell, was significantly downregulated in the AD group compared with other control groups. These results suggest that suppression of $T_H1$ cell-mediated immune response could be reflected into the skin tissue of mice treated with DNCB for AD induction, and disturbance of keratinocyte integrity might evoke a compensatory mechanism.

Tissue-Specific Expression of Nebulin Isoform Proteins in Chicken (닭 조직에 따른 Nebulin Isoform 단백질의 특이적 발현)

  • 김영희;김정락
    • Biomedical Science Letters
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    • v.6 no.3
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    • pp.171-179
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    • 2000
  • The lengths of thick and thin filaments in the sarcomeres of most vertebrate skeletal muscles are precisely regulated and are important structural parameters in understanding muscle contraction. Nebulin is a usually large protein that spans the whole length of thin filaments in the sarcomeres of skeletal muscles. In this paper we used SDS-PAGE and immunoblot to identify nebulin isoform proteins in muscle and non-muscle tissues. We prepared embryonic chicken tissues including skeletal muscle, cardiac muscle, smooth muscle, brain, liver to compare nebulin isoform proteins. The proteins were divided into soluble and insoluble fraction. As a result, we identified tissue specific expression of various nebulin isoform proteins in muscle and non-muscle tissues of chicken. Nebulin was detected in skeletal muscle of adult chicken about 500 kDa. Nebulett was expressed in cardiac muscle of embryonic and adult chicken about 107 kDa. A giant protein with molecular mass of about 380 kDa was identified in brain of non-muscle of chicken. This giant protein was detected in the soluble fraction of chicken embryo. The unequal distribution of the nebulin isoform proteins suggests tissue specific regulation of the isoform expression and indicates a functional specialization of the encoded isoform subtypes.

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Immunologic effects of somatic antigens of house dust mite (Dermatophagoides pteronyssinus) against canine sarcoptic mite (Sarcoptes scabiei var. canis) infestation (집먼지진드기 체항원을 이용한 개 옴 감염증에 대한 면역효과)

  • Yoon, In-Soo;Kim, Jae-Won;Jee, Cha-Ho
    • Korean Journal of Veterinary Research
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    • v.43 no.4
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    • pp.689-696
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    • 2003
  • Canine sarcoptic mite (Sarcoptes scabiei var. canis) burrow usually in the stratum corneum of the skin of dogs and rabbits. Antigens from the burrowing mites induce cutaneous inflammatory reaction and humoral and cell-mediated immune response in the host. The effect of immunization induced by somatic antigens of house dust mite (Dermatophagoides spp.) has been evaluated to control the canine sarcoptic mite in this experiment. Twelve common antigens (187, 142, 126, 120, 109, 92, 80, 68, 51, 30, 25, 17 kDa) were found using SDS-PAGE with silver staining and Western blot between canine sarcoptic mite and house dust mite. In order to evaluate the immunologic effect of these common antigens 10 New Zealand white rabbits were divided as 4 groups such as negative control (group I), positive challenged control (group II), vaccinated (group III), and vaccinated-challenged (group IV) groups. Group II was artificially infested with about 1,000 canine sarcoptic mites and group III and IV were immunized with somatic antigens of house dust mite. In addition group IV was artificially infested with about 1,000 canine sarcoptic mites and group II, IV were treated with ivermectin. At the 8 weeks of the vaccination with common antigen, the antibody titers of all groups of II, III and IV had been increased. Both infestation score and live canine sarcoptic mite counts of group IV were lower than group III. Infestation score of group II become 0 by 2 weeks and group IV by 4 weeks after infestation. These results suggest that house dust mite, which is easy to culture in vitro, can be a vaccine candidate for protection of canine sarcoptic mite infestation.