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Characteristics of Polymetallic Occurrence in Kau Loc Area within Northern Vietnam: Preliminary Study (베트남 북부 카우록 다중금속 산출지의 특성: 예비연구)

  • Heo, Chul-Ho;Chi, Se-Jung;Park, Sung-Won;Lee, Jae-Ho
    • Economic and Environmental Geology
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    • v.44 no.5
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    • pp.345-357
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    • 2011
  • It was carried out to the survey on the lead-zinc and tungsten occurrences in the Kau Loc mineralized belt within northern Vietnam. The lead-zinc occurrence bear the ore body parallel to the bedding of limestone formation. Assuming the surface grade and geological reserve, Pb+Zn deposit is estimated to the small to medium-sized ore deposit. On the other hand, considering the distribution of small-scale stock intruding the Devonian limestone, it is thought that the tungsten occurrence has the proper geological conditions anticipating the presence of skarn mineralization. However, there is no evidence to recognize economic feasibility in the present situation because of the absence of detailed geology and ore deposit survey on the tungsten occurrence.

International Trends of Access to Genetic Resources and Benefit Sharing Issue and Biodiversity Research (유전자원 접근 및 이익공유에 관한 국제 동향과 생물다양성 연구)

  • 김태규;김기태;노환춘;김말희;이은영;이병윤;이민효;오경희
    • Korean Journal of Plant Resources
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    • v.16 no.3
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    • pp.169-180
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    • 2003
  • Biodiversity is defined as totality of genetic, species, and ecosystem variability. It provides natural sources of crop improvement, traditional medicine and biotechnology. In 1993, the Convention on Biological Diversity(CBD) became a legally binding framework for conserving and utilizing global biological diversity. It recognizes national sovereign rights over all genetic resources, such as the need to compensate developing countries for the resources they have provided to the industrialized world. The CBD grants access to those resources in exchange for compensation as well as technology transfer, so that the access to genetic resources would be made under prior informed consent(PIC) and mutually agreed terms(MAT). On the other hand, the developed countries argued that unfettered exchange of genetic resources was essential for scientific research and development, and that technology using genetic resources should be protected. There are many countries today, developing legal frameworks concerned with access to their local genetic resources and benefit sharing. In this study, we analyzed the international trends for conservation of biodiversity and sustainable use of genetic resources, and suggested how to cope actively with the situation.

Purification and Cloning of an Extracellular Serine Protease from the Nematode-Trapping Fungus Monacrosporium cystosporium

  • Yang, Jin-Kui;Ye, Feng-Ping;Mi, Qi-Li;Tang, Song-Qing;Li, Juan;Zhang, Ke-Qin
    • Journal of Microbiology and Biotechnology
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    • v.18 no.5
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    • pp.852-858
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    • 2008
  • An extracellular protease (Mc1) was isolated from the nematode-trapping fungus Monacrosporium cystosporium by gel filtration, anion-exchange, and hydrophobic interaction chromatographies. This protease had a molecular mass of approximately 38 kDa and displayed an optimal activity at pH 7-9 and $56^{\circ}C$ (over 30 min). Its proteolytic activity was highly sensitive to the serine protease inhibitor PMSF (phenylmethylsulfonylfluoride, 0.1 mM), indicating that it belonged to the serine-type peptidase group. The Michaelis constant ($K_m$) and $V_max$ for substrate N-Suc-Ala-Ala-Pro-Phe-pNA were $1.67{\times}10^{-4}\;M$ and 0.6071 $OD_{410}$ per 30 s, respectively. This protease could degrade a broad range of substrates including casein, gelatin, BSA (bovine serum albumin), and nematode cuticle. Moreover, the enzyme could immobilize the free-living nematode Panagrellus redivivus and the pine wood nematode Bursaphelenchus xylophilus, suggesting that it might playa role in infection against nematodes. The encoding gene of Mc1 was composed of one intron and two exons, coding for a polypeptide of 405 amino acid residues. The deduced amino acid sequence of Mcl showed 61.4-91.9% identity to serine proteases from other nematode-trapping fungi. Our results identified that Mcl possessed biochemical properties including optimal reaction condition and substrate preference that are different from previously identified serine proteases.

A Predictive Model of Resilience in Mothers of Children with Developmental Disabilities (발달장애아동 어머니의 회복탄력성 예측 모형)

  • Cho, Youyoung;Kim, Hyeonok
    • Journal of Korean Academy of Nursing
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    • v.52 no.4
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    • pp.407-420
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    • 2022
  • Purpose: This structural model study was constructed and verified a hypothetical model to examine the effects of parenting stress, social resources, family resources, and positive coping on resilience among mothers of children with developmental disabilities. Methods: Data were collected using self-report structured questionnaires, from October 19 to October 30, 2018, with 214 mothers caring for children with developmental disabilities under the age of 20 years. Results: In the fitness test results of the hypothesis model, with the fit index 𝛘2 (p) = 69.27 (< .001), and the normed fit indices (𝛘2 = 1.87, GFI = .94, CFI = .97, NFI = .93, and TLI = .95, RMSEA = .06, SRMR = .06), this study satisfies the good fitness in standards. There are seven statistically significant paths among the 10 paths set in the hypothetical model. The explanatory power of parenting stress and social resources, which affects the family resources was 41.4%, the explanatory power of parenting stress, social resources, and family resources affecting the positive coping was 58.9%, and the explanatory power of parenting stress, social resources, family resources, and positive coping affecting resilience was 55.5%. Conclusion: Positive coping, family resources, and social resources of mothers of children with developmental disabilities directly affect their resilience, and parenting stress indirectly affects it. Therefore, to improve the resilience of mothers of children with developmental disabilities, it is necessary to develop a systematic nursing intervention that considers parenting stress, social resources, family resources, and positive coping.

Toward High Utilization of Heterogeneous Computing Resources in SNP Detection

  • Lim, Myungeun;Kim, Minho;Jung, Ho-Youl;Kim, Dae-Hee;Choi, Jae-Hun;Choi, Wan;Lee, Kyu-Chul
    • ETRI Journal
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    • v.37 no.2
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    • pp.212-221
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    • 2015
  • As the amount of re-sequencing genome data grows, minimizing the execution time of an analysis is required. For this purpose, recent computing systems have been adopting both high-performance coprocessors and host processors. However, there are few applications that efficiently utilize these heterogeneous computing resources. This problem equally refers to the work of single nucleotide polymorphism (SNP) detection, which is one of the bottlenecks in genome data processing. In this paper, we propose a method for speeding up an SNP detection by enhancing the utilization of heterogeneous computing resources often used in recent high-performance computing systems. Through the measurement of workload in the detection procedure, we divide the SNP detection into several task groups suitable for each computing resource. These task groups are scheduled using a window overlapping method. As a result, we improved upon the speedup achieved by previous open source applications by a magnitude of 10.

The Relationship between the Natural Resources and Tourism & Recreational Activities (자연자원과 관광레크레이션활동과의 관계)

  • 박구원;송태갑
    • Journal of Environmental Science International
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    • v.11 no.9
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    • pp.843-849
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    • 2002
  • According to tourism resources in Kyonggi province, tourist behavior was dramatically different in that tourists utilizing natural resources were mainly interested in static tourism activities and sight seeing activities while tourist using socio-cultural resources preferred with dynamic tourism activities and relaxation tourism. Therefore, the objectives of reconstruction should be adjusted depending on types of tourism resources (i.e. natural and socio-cultural resources) or natural intensity as well as the development goal of recreational tourism. In contrast, historic and cultural resources surrounded with natural resources showed higher revisit rate, and was conceived as better touring site than individual resource because of historical people, traditional custom, natural sight seeing, etc. Therefore, it is believed that proper utilization of natural resources will increase revisit rate and create new conception as a famous touring site.

IT industrial policy of China (중국 IT 산업의 현황 및 전망)

  • Kwon, Oh-Heung
    • Proceedings of the Korean Institute of Resources Recycling Conference
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    • 2003.10b
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    • pp.59-67
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    • 2003
  • 중국이 IT산업의 도약에 따른 채비가 한창이다. IT업계에서는 중국이 양적인 팽창뿐 아니라 질적인 면에서도 IT강국으로 불릴 만한 수준으로 올라 설 수 있을 것이라는게 대체적인 시각이다. 중국은 2001년부터 시작된 ‘10차 5개년 계획’을 통해 첨단산업 육성정책과 IT산업 발전지원정책들을 함께 실시해오고 있다. 거기에 발맞춰 경제편차가 심한 동서부의 균형을 맞추기 위한 ‘서부 대개발 계획’에 따른 서부지역의, 특히 중경의 IT산업 발전 현황 및 정책을 살펴봄으로서 우리가 나아가야 할 방향을 알아본다.

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Efficient Virtual Machine Placement Considering System Load (시스템 부하를 고려한 효율적인 가상 머신 배치)

  • Jung, Sungmin
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.16 no.2
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    • pp.35-43
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    • 2020
  • Cloud computing integrates computing resources such as servers, storage, and networks with virtualization technology to provide suitable services according to user needs. Due to the structural characteristics of sharing physical resources based on virtualization technology, threats to availability can occur, so it is essential to respond to availability threats in cloud computing. Existing over-provisioning method is not suitable because it can generate idle resources and cause under-provisioning to degrade or disconnect service. System resources must be allocated in real-time according to the system load to guarantee the cloud system's availability. Through appropriate management measures, it is necessary to reduce the system load and increase the performance of the system. This paper analyzes the work response time according to the allocation or migration of virtual machines and discusses an efficient resource management method considering the system load.

The Artistic Hat Applying Natural Resources and Innovative Materials

  • Kim, Hye-Kyung;Lee, Yoon-Jee
    • Journal of Fashion Business
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    • v.5 no.5
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    • pp.65-76
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    • 2001
  • The hat is the most flexible human head covering. Almost entirely enveloping the hair, it can be simple, pure, elegant and mysterious. Yet it is frequently a highly decorative form of dress. The hat also takes a part in the extension of the area of art as soft-sculpture. My purpose of this thesis is to present diverse artistic hats with natural images by nontraditional materials and natural resources. The reason why I select nature as them is that it is absolutely the origin of life and art. To develop the innovative hat design, I focus on the material to extend the range of art expression. I observe nontraditional materials such as wire, paper and so on that enhance heterogenetic feeling from natural images. The attempt is made to enhance the visual effect by harmonizing the disharmonious feeling. Natural resources such as moss, orange, feather and so on could be adapted to the hat and applied for unique design, which supplies new expression. Therefore, the harmony of natural images and natural resources could avoid dullness, bestow elegance and polish the unique beauty creation of the hat.

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A Study on the APA Style to Cite and Document Electronic Resources (APA 형식을 적용한 전자정보원의 참고문헌작성)

    • Journal of Korean Library and Information Science Society
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    • v.30 no.3
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    • pp.233-254
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    • 1999
  • The forth edition of the Publication Manual of the American Psychological Association (1994) provides documentation advice for writers in the social sciences. This style of citation briefly identifies the source for readers and enables them to locate the source of information in the alphabetical reference list at the end of an article. Although the APA publication manual gives recommendations for citing some kinds of electronic resources, it acknowledges that at the time of writing this edition, a standard had not yet emerged for referencing on-line information. Because the manual was published before the development of the Internet as we know it, it does not have guidelines for citing www sites, web discussion forum posting, and other Internet resources,. Therefore this study aims to extend the principles and conventions of APA citation style to electronic resources.

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