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Distributed Processing System for Aggregate/Analytical Functions on CUBRID Shard Distributed Databases (큐브리드 샤드 분산 데이터베이스에서 집계/분석 함수의 분산 처리 시스템 개발)

  • Won, Jiseop;Kang, Suk;Jo, Sunhwa;Kim, Jinho
    • KIISE Transactions on Computing Practices
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    • v.21 no.8
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    • pp.537-542
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    • 2015
  • Database Shard is a technique that can be queried and stored by dividing one logical table into multiple databases horizontally. In order to analyze the shard data with aggregate or analysis functions, a process is required that integrates partial results on each shard database. In this paper, we introduce the design and implementation of a distributed processing system for aggregation and analysis on the CUBRID Shard distributed database, which is an open source database management system. The implemented system can accelerate the analysis onto multiple shards of partitioned tables; it shows efficient aggregation on shard distributed databases compared to stand-alone databases.

Isolation and Characterization of a Wound or UV Induced cDNA Fragment from Pleurotus sajor-caju (상처 및 자외선 자극에 반응하는 여름느타리 cDNA 단편의 분리 및 그 발현 특성)

  • Park, Soo-Chul;Jung, Uk-Jin;Jeong, Mi-Jeong;Kim, Bum-Gi;Yoo, Young-Bok;Ryu, Jin-Chang
    • The Korean Journal of Mycology
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    • v.26 no.3 s.86
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    • pp.314-320
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    • 1998
  • A 0.4 kb cDNA fragment was isolated from mRNA of UV or mechanical wound damaged Pleurotus sajor-caju by the differential display method. Expression of the gene corresponding to this cDNA fragment was highly induced by mechanical wound damage or UV treatment. This gene showed only basal level expression in mycelia, stipe, and cap under normal growth conditions. Sequencing analysis showed that this cDNA fragment contains partial open reading frame. Homology search using genbank database revealed that although this gene do not have homology with already reported wound induced genes, it has a significant sequence homology in defined region with the cdc2-related protein kinase gene which is known to be involved in negative regulation of meiotic maturation in Xenopus oocytes.

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Structural Characterization of the Genome of BERV γ4 the Most Abundant Endogenous Retrovirus Family in Cattle

  • Xiao, Rui;Park, Kwangha;Oh, Younshin;Kim, Jinhoi;Park, Chankyu
    • Molecules and Cells
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    • v.26 no.4
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    • pp.404-408
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    • 2008
  • The genome of replication-competent BERV ${\gamma}4$ provirus, which is the most abundant ERV family in the bovine genome, was characterized in detail. The BERV ${\gamma}4$ genome showed that BERV ${\gamma}4$ harbors 8576 nucleotides and has the typical 5'-long terminal repeat (LTR)-gag-pro-pol-env-LTR-3' retroviral organization with a long leader region positioned before the gag open reading frame. Multiple sequences analysis showed that the nucleotide difference between 5' and 3' LTRs was 4.2% (mean value 0.042) in average, suggesting that the provirus formed at most 13.3 million years ago. Gag separated by a stop codon from pro-pol in the same reading frame, while env resides in another reading frame lacking of a functional surface domain. According to the current bovine genome sequence assembly, the full-length BERV ${\gamma}4$ provirus sequences were only found in the chromosomes 1, 2, 6, 10, 15, 23, 26, 28, X, and unassigned, although the partial sequences almost evenly distributed in the entire bovine genome. This is the first detailed study describing the genome structure of BERV ${\gamma}4$, the most abundant ERV family present in bovine genome. Combined with our recent reports on characterization of ERVs in bovine, this study will contribute to illuminate ERVs in the cattle of which no information was previously available.

Entrepreneurial Orientation of Owner Managers and Innovation Performance of Firms : Focusing on mediation effect of user innovation (소유경영자의 혁신지향성과 혁신성과: 수요자 혁신의 매개효과를 중심으로)

  • Lee, Eunhwa;Yoo, Jaewook;Kim, Chooyeon
    • Journal of the Korea Convergence Society
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    • v.10 no.5
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    • pp.213-219
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    • 2019
  • This study is designed to analyze the effect of entrepreneurship orientation of owner managers on product innovation performance through user innovation participation by using Korea Innovation Survey 2014 (KIS 2014) conducted by STEPI (Science and Technology Policy Institute). The findings show that entrepreneurial orientation of owner managers measured by a proxy variable of ownership ratio has positive relationship with innovation performance of firms. They also present that user innovation activity has a partial mediating effect on the relationship between the entrepreneurial orientation of owner managers and innovation performance of firms. This study suggests that the higher the entrepreneurial orientation of the owner manager, the higher the innovation performance. The innovation performance can be intensified when the open innovation strategy is implemented through the user participation.

Study of Fashion Application Usage Pattern and Styling Considerations of Middle-aged Women in thier 40s and 50s (40~50대 중년 여성의 패션 애플리케이션 활용 실태 및 스타일링 고려사항 연구)

  • Lee, Jung Eun;Kim, Dong-Eun
    • Fashion & Textile Research Journal
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    • v.24 no.3
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    • pp.279-288
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    • 2022
  • This study aims to derive the need for middle-aged women to consider using fashion product applications, styling, and personalized styling services. To analyze the fashion styling considerations of middle-aged women, 200 women in their 40s and 50s were surveyed. Middle-aged women usually tend to shop through home shopping, department stores, fashion soho (Small office home office) malls, and open market-type applications, and purchase fashion products more than two or three times a month, spending an average of less than 50,000 won per month. Middle-aged women consider choosing appropriate clothing based on the occasion and place, complementing the flaws of the changed body type as well as taking into account the weather in the styling process, and seek to showcase a sophisticated, luxurious, and youthful image through styling. However, they are confused and face difficulties in fashion styling, with regard to not only overall body shape but also partial body changes, such as increasing waistline, flabby thighs and arms, and decreasing hip volume. In addition, middle-aged women were looking for expert advice on styling to help them look the best. They also wanted to solve the difficulties of making a right choice amid the overflowing information related to fashion. The results of the study contribute to identifying products that meet the needs of middle-aged women and help develop detailed consumer-tailored marketing strategies, thereby improving sales of fashion products.

Abdominal-based adipocutaneous advancement flap for reconstructing inguinal defects with contraindications to standard reconstructive approaches: a simple and safe salvage reconstructive option

  • Schaffer, Clara;Haselbach, Daniel;Schiraldi, Luigi;Sorelius, Karl;Kalbermatten, Daniel F.;Raffoul, Wassim;di Summa, Pietro G.
    • Archives of Plastic Surgery
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    • v.48 no.4
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    • pp.395-403
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    • 2021
  • Background Groin wounds occurring after vascular surgical site infection, oncologic resection, or occasionally orthopedic surgery and trauma may represent a surgical challenge. Reconstruction of these defects by the usual workhorse flaps may be contraindicated following previous surgery and in patients with lower limb lymphedema or extreme morbidity. Methods This study included 15 consecutive patients presenting with inguinal wounds after vascular or general surgery that required debridement and soft tissue coverage. All cases had absolute or relative contraindications to conventional reconstructive techniques, including a compromised deep femoral artery network, limb lymphedema, scarring of potential flap harvesting sites, or poor overall condition. Abdominal adipocutaneous excess enabled the performance of adipocutaneous advancement flaps in an abdominoplasty-like fashion. Immediate and long-term outcomes were analyzed. Results Soft tissue coverage was effective in all cases. Two patients required re-intervention due to flap-related complications (venous congestion and partial flap necrosis). All patients fully recovered over a mean±standard deviation follow-up of 2.4±1.5 years. Conclusions Abdominal flaps can be an effective and simple alternative technique for inguinal coverage with reproducible outcomes. In our experience, the main indications are a compromised deep femoral artery network and poor thigh tissue quality. Relative contraindications, such as previous open abdominal surgery, should be considered.

The Effect of Ethical Leadership of Employers of Small and Medium Businesses on Job Satisfaction : Focusing on Mediating Effects of Organizational Fairness (중소기업 고용주의 윤리적 리더십이 직무만족에 미치는 영향 : 조직공정성을 매개효과로)

  • Jung, Yong-Chung;Seo, Jong-Cheol
    • Journal of Industrial Convergence
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    • v.20 no.5
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    • pp.11-20
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    • 2022
  • The purpose of the study is as follows. This is to understand the effect of ethical leadership of small and medium businesses employers on job satisfaction and to understand the mediating effect of organizational fairness in their relationship. The study conducted an online survey and analyzed 508 employees of small and medium-sized enterprises in Seoul and northern Gyeonggi. The research results are as follows. First, the higher the ethical leadership of small and medium businesses employers, the higher the job satisfaction. Second, the higher the ethical leadership of small and medium businesses employers, the higher the organizational fairness. Finally, the partial mediating effect of organizational fairness was confirmed in the effect of ethical leadership of small and medium businesses employers on job satisfaction. Therefore, there is a need for a plan to strengthen the ethical leadership capabilities of small and medium businesses employers to improve job satisfaction and organizational fairness of SME employees.

Development of an Object-Relational IFC Server

  • Hoon-sig Kang;Ghang Lee
    • International conference on construction engineering and project management
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    • 2009.05a
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    • pp.1346-1351
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    • 2009
  • In this paper we propose a framework for an Object Relational IFC Server (OR-IFC Server). Enormous amounts of information are generated in each project. Today, many BIM systems are developed by various CAD software vendors. Industry Foundation Classes (IFC) developed by International Alliance for Interoperability (IAI) is an open standard data model for exchanging data between the various BIM tools. The IFC provides a foundation for exchanging and sharing of information directly between software applications and define a shared building project model. The IFC model server is a database management system that can keep track of transactions, modifications, and deletions. It plays a role as an information hub for storing and sharing information between various parties involved in construction projects. Users can communicate with each other via the internet and utilize functions implemented in the model server such as partial data import/export, file merge, version control, etc. IFC model servers using relational database systems have been developed. However, they suffered from slow performance and long transaction time due to a complex mapping process between the IFC structure and a relational-database structure because the IFC model schema is defined in the EXPRESS language which is object-favored language. In order to simplify the mapping process, we developed a set of rules to map the IFC model to an object-relational database (ORDB). Once the database has been configured, only those pieces of information that are required for a specific information-exchange scenario are extracted using the pre-defined information delivery manual (IDM). Therefore, file sizes will be reduced when exchanging data, meaning that files can now be effectively exchanged and shared. In this study, the framework of the IFC server using ORDB and IDM and the method to develop it will be examined.

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Effects of Relative Humidity and Fiber Properties on the Moisture Permeability of Multilayer Fabric Systems (환경 및 섬유 특성이 멀티레이어 직물시스템의 투습성에 미치는 영향)

  • Suhyun Lee;Sohyun Park
    • Fashion & Textile Research Journal
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    • v.25 no.1
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    • pp.119-126
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    • 2023
  • This study aimed to determine the effects of relative humidity and fiber properties on the moisture permeability of multilayer systems by measuring water vapor transmission in the overlapping condition of various fabrics. The results confirmed that the property of the fabric in contact with the humid environment affects the moisture permeability. If the layer facing the humid environment is hydrophobic and the layer facing the dry environment is superhydrophobic, water vapor transmission increases by up to 17.8% compared to the opposite conditions. Comparing the correction values of the water vapor transmission reflecting the thickness of the specimen under the multilayer condition showed that permeability was higher when the hydrophilic or hydrophobic layer was facing the humid environment. The opposite was true from the "push-pull" effect of absorption mechanism. In the case of moisture permeability, the more hydrophilic the surface facing the humid environment, the more permeable that water vapor diffuses and passes through. It was concluded that the "pull-push" effect, in which water vapor diffuses widely through the hydrophilic facing a humid environment and then passes through the hydrophobic layer, contributes to the improvement of permeability. Permeability differed according to the multilayer overlapping condition. When the relative humidity was high, the "pull-push" effect was insignificant. This is caused by water droplets absorption after the partial migration of water due to condensation. These results suggest that the overlapping conditions and properties of fabrics should vary depending on heavy sweating or not.

Distribution of Skill and Encouraging Motivation to Enhance Resilience: Evidence from Accounting Personnel During COVID-19 Crisis

  • Yamuna Rani PALANIMALLY;Mohd Danial Afiq Khamar TAZILAH;Zam Zuriyati MOHAMAD;Meenah RAMASAMY;Mohamad Rohieszan RAMDAN;Dayang Rafidah SYARIFF M. FUAD;Noral Hidayah ALWI
    • Journal of Distribution Science
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    • v.22 no.2
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    • pp.41-50
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    • 2024
  • Purpose: This study aims to identify the distribution of skill evolution for accounting personnel during the health crisis and investigate the impact of accounting skills in developing resilience among accounting personnel. Research design, data, and methodology: A total of 131 respondents of accounting personnel participated in a self-administered survey questionnaire. This data is analysed using the partial least square structural equation modeling. Results: The results show that accounting skills, digital skills, and writing skills have a significant impact on developing accounting personnel's motivation, subsequently leading to resilience. Conclusions: This study adds to the literature on the new requirements and future profiles of Malaysian organisation and the accounting profession. This will be a good reference for the practitioners to identify the relevant skills required for accountants after the pandemic. Furthermore, this study includes encouraging motivation and skills to improve resilience in the Malaysian context further to understand the push factors on skills evolution among the accountants. Higher education institutions with accounting courses would consider the potential future skills of accountants to meet market demands on time when updating the institutions' curricula program. Hence, the relevant skills required can be developed and practiced at the education level, especially secondary and tertiary levels.