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Chewing Lice of Swan Geese (Anser cygnoides): New Host-Parasite Associations

  • Choi, Chang-Yong;Takekawa, John Y.;Prosser, Diann J.;Smith, Lacy M.;Ely, Craig R.;Fox, Anthony D.;Cao, Lei;Wang, Xin;Batbayar, Nyambayar;Natsagdorj, Tseveenmayadag;Xiao, Xiangming
    • Parasites, Hosts and Diseases
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    • v.54 no.5
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    • pp.685-691
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    • 2016
  • Chewing lice (Phthiraptera) that parasitize the globally threatened swan goose Anser cygnoides have been long recognized since the early 19th century, but those records were probably biased towards sampling of captive or domestic geese due to the small population size and limited distribution of its wild hosts. To better understand the lice species parasitizing swan geese that are endemic to East Asia, we collected chewing lice from 14 wild geese caught at 3 lakes in northeastern Mongolia. The lice were morphologically identified as 16 Trinoton anserinum (Fabricius, 1805), 11 Ornithobius domesticus Arnold, 2005, and 1 Anaticola anseris (Linnaeus, 1758). These species are known from other geese and swans, but all of them were new to the swan goose. This result also indicates no overlap in lice species between older records and our findings from wild birds. Thus, ectoparasites collected from domestic or captive animals may provide biased information on the occurrence, prevalence, host selection, and host-ectoparasite interactions from those on wild hosts.

Effects of Hospital-based Home Care Demonstration Project on Physical and Emotional Problems and Cost - effectiveness of Patients having Arthritis (병원중심 가정간호 사업의 평가 연구 -외래 관절염 환자를 대상으로 -)

  • Lim, Nan-Young;Kim, Seong-Yoon;Lee, Eun-Ok;Lee, In-Sook
    • Journal of muscle and joint health
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    • v.3 no.1
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    • pp.4-22
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    • 1996
  • Purposes of this study were to identify a hospital-based home care model and to improve the physical, emotional and economical effectiveness of arthritic patients through medical and nursing team approach. The design in nonequivalent control group pretest-posttest design with matched samples in terms of age, sex and disease severity. Fifty two patients in each group were assigned in Seoul, Kyunggi, Kangwon and Kwangju. Before and after 6-month period of home care, level of pain, duration of morning stiffness, Richie Index, ADL, self efficacy, depression, cost expenditure were measured. Nine patients were excluded from the control group in the period of study because of denial of participation. Contents of home care provided to the experimental group include mainly distribution of prescribed drugs, 'assessment of patients' condition and side-reactions of drug. All of the information related to the home care patient were reported to the physician. On the bases of these data, the physician prescribe the specific drugs to each patient. Each patient visited the physician every 2 or 3 month for laboratory test. Patients assigned to the control group visited the outpatient clinic once a month as usual. Null hypotheses were selected because physicians concerned about the ineffective change of patients' conditions due to indirect communication with patients through nurses. Level of pain, Richie index, ADL, self-efficacy, depression, duration of morning stiffness and direct medical cost were the home care provided to them. If a family member accompany in a home care group can save 10,676 Won/month in Seoul, 34,000 Won/month in other districts. Other in-direct cost for transportation and meal can also be saved. In conclusion, those patients with low level of ADL, high level of pain and Richie index, living in the remote area definitely need the home care.

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Method Discrimination for Product Traceability and Identification of Korean Native Chicken using Microsatellite DNA (초위성체를 이용한 한국 재래닭의 원산지 추적 및 개체 식별 방법에 관한 연구)

  • Park, Mi-Hyun;Oh, Jae-Don;Jeon, Gwang-Joo;Kong, Hong-Sik;Sang, Byong-Don;Choi, Chull-Hwan;Yeon, Sung-Hum;Cho, Byong-Wok;Lee, Hak-Kyu
    • Korean Journal of Organic Agriculture
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    • v.12 no.4
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    • pp.451-461
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    • 2004
  • In an animals, identification system has been widely used by ear tag with dummy code and blood typing for parernity. Also, genotyping methods were using for useful mean of individual identification for live animals. In the case of genotyping estimation of gene in population of korean native chicken. In this study, we tested for development of genetic markers used it possible to determination of individual identification system. The candidate genetic markers were used already bow 10 of microstalite DNA sequence information in chromosome No. 1 and 14. Result of analysis for genotyping, the number of alleles of those microstatelites DNA was shown minimal 3 to 12 and the heterozygote expression frequency range was shown from 0.617 to 0.862. In our result, effective number of allele for each microsatellites DNA was shown 3~7, and the accuracy of individual identification was shown nearly 100%, when used with 6 genetic marker. This study was about genotyping method for identification used specific genetic marker form microsatellite DNA in the brand marketing of korean native chicken. Our results suggest that genotyping method used specific genetic marker from microsatellite DNA might be very useful for determination of individual identification.

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Kerogen Facies of the Cretaceous Black Shales from the Angola Basin (DSDP Site 530), South Atlantic (앙골라분지 백악기 흑색셰일의 유기물상)

  • 박영수
    • 한국해양학회지
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    • v.22 no.2
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    • pp.87-104
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    • 1987
  • The middle Cretaceous stratigraphec section of Deep Sea Drilling Project (DSDP) Site 530 in the Angola Basin is characterized by cyclic interbeds of organic-carbon-rich black shales and organic-carbon-poor red and green claystones, namely the black shale sequence. A number of samples from the black shale sequence were analyzed for the typesand distribution of insoluble sedimentary organic matter(kerogen) in order to give more information on the depositional conditions of the black shales in the Angola Basin. The dominant type of kerogen in the black shale sequence at Site 530 is amorphous organic matter mainly of marine planktonic algal origin. It probably consists of remains of some unfossiliqed dinoflagellates. The cyclic preservation of organic-carbon-rich black shales in the Angola Basin during the mid-Cretaceous could be explained by the low dissolved-oxygen concentration in the warm, saline deep and bottom waters combined with the sluggish circulation within the highly restricted basin, and the periodic high productivity in the surface waters.

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A Study on Improvement of Face Recognition Rate with Transformation of Various Facial Poses and Expressions (얼굴의 다양한 포즈 및 표정의 변환에 따른 얼굴 인식률 향상에 관한 연구)

  • Choi Jae-Young;Whangbo Taeg-Keun;Kim Nak-Bin
    • Journal of Internet Computing and Services
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    • v.5 no.6
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    • pp.79-91
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    • 2004
  • Various facial pose detection and recognition has been a difficult problem. The problem is due to the fact that the distribution of various poses in a feature space is mere dispersed and more complicated than that of frontal faces, This thesis proposes a robust pose-expression-invariant face recognition method in order to overcome insufficiency of the existing face recognition system. First, we apply the TSL color model for detecting facial region and estimate the direction of face using facial features. The estimated pose vector is decomposed into X-V-Z axes, Second, the input face is mapped by deformable template using this vectors and 3D CANDIDE face model. Final. the mapped face is transformed to frontal face which appropriates for face recognition by the estimated pose vector. Through the experiments, we come to validate the application of face detection model and the method for estimating facial poses, Moreover, the tests show that recognition rate is greatly boosted through the normalization of the poses and expressions.

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The Modified Block Matching Algorithm for a Hand Tracking of an HCI system (HCI 시스템의 손 추적을 위한 수정 블록 정합 알고리즘)

  • Kim Jin-Ok
    • Journal of Internet Computing and Services
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    • v.4 no.4
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    • pp.9-14
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    • 2003
  • A GUI (graphical user interface) has been a dominant platform for HCI (human computer interaction). A GUI - based interaction has made computers simpler and easier to use. The GUI - based interaction, however, does not easily support the range of interaction necessary to meet users' needs that are natural. intuitive, and adaptive. In this paper, the modified BMA (block matching algorithm) is proposed to track a hand in a sequence of an image and to recognize it in each video frame in order to replace a mouse with a pointing device for a virtual reality. The HCI system with 30 frames per second is realized in this paper. The modified BMA is proposed to estimate a position of the hand and segmentation with an orientation of motion and a color distribution of the hand region for real - time processing. The experimental result shows that the modified BMA with the YCbCr (luminance Y, component blue, component red) color coordinate guarantees the real - time processing and the recognition rate. The hand tracking by the modified BMA can be applied to a virtual reclity or a game or an HCI system for the disable.

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An Explorative Study on the Features of Activity Trackers as IoT based Wearable Devices (사물인터넷 기반 웨어러블 디바이스인 활동량측정기의 특성에 대한 탐색연구)

  • Hong, Suk-Ki
    • Journal of Internet Computing and Services
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    • v.16 no.5
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    • pp.93-98
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    • 2015
  • IoT (Internet of Things) is recently burgeoning as business applications as well as ICT itself. Among the business applications of IoT, wearable devices are recognized as a leading area of customer devices. This research first identifies customer needs of activity trackers (fitness trackers), as one of representative wearable devices, and mapping the identified needs with the well-known marketing model of marketing mix (4 P's: Product, Price, Promotion, and Place). Survey was applied to university students for identifying current and potential needs for activity trackers. The needs were classified by 4 P's, and according to the results, different from other IT devices, activity trackers has more potential needs. Moreover, reliable distribution channels, offline and company owned shops were preferred, rather than online shopping mall by third parties. The results would provide some valuable implications to not only designers of activity trackers but also business management.

AP-Initiated Flow Redirection Mechanism for AP Load Balancing in WLAN Environments (무선랜 환경에서 AP 로드 밸런싱을 위한 AP-개시 플로우 리다이렉션 메커니즘)

  • Kim, Mi-Hui;Chae, Ki-Joon
    • Journal of Internet Computing and Services
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    • v.10 no.2
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    • pp.65-73
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    • 2009
  • IEEE802.11 Wireless LAN(WLAN) is being widely used in public space such as airport, and increases the networking boundary in campus and enterprise, and it has lastly attracted considerable attention for mesh network and converged network with other 3G mobile communication networks. In WLAN, load balancing among Access Points(AP) is an important issue for efficient resource management or supporting the Quality of Service(QoS) of traffic, but most researches focused on the AP selection in network entry or roaming of Stations(STA). In this paper, we propose an AP-Initiated Flow Redirection(FR) for AP load balancing by monitoring AP's availability in the true sense. When the AP's resource becomes almost saturated, that is used more than a specific threshold, the AP queries the roaming possible neighbor APs about their availability and calculates the distribution of traffic load with statistical methods such as entropy or chi-square. Finally, the AP decides flows and new APs for redirection and performs it. Our simulation results show that our FR mechanism increases the performance in the various views.

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Research on the Status of Domestic Wedding Industry - Focusing on Dress, Studios, Makeup Firms -

  • Shin, Kyeong-Seob
    • Journal of Fashion Business
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    • v.12 no.3
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    • pp.153-166
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    • 2008
  • The purpose of this research is to analyze the overall process of the wedding industry - arranging domestic wedding firms and formulating a database related to the business. Simultaneously, with all the data in hand the research attempts to seek flaws within the wedding industry and tries to offer solutions to revitalize the industrial section. Because the list of articles is enormously expansive, for the purpose of basic research, objects have been selected according to the process presented below. Wedding-product firms have been classified within the boundaries of dresses, studios, and makeup firms; distributing channels are mainly focused on wedding planners and related-consulting firms; related departments of universities and wedding organizations are illustrated as well. Due to the unorganized system of this particular field, the research process has been conducted with materials from personal experiences, newspapers, magazines, Internet websites, documents, and interviews with wedding-related firms and organizations, and professors. As a result, over 13 subjects which formulate a market structure of over 30 trillion won. However, due to lack of systemization of the industry, as it expands, numerous problems occur. Excessive competition between wedding-consulting firms and the lack of reliable education for wedding planners, unnecessary external investment and the lack of product research, false Information from the Internet puts the entire industry in a inefficient position. Organizations such as Korea Traditional clothes Industrial Union, Korea Wedding Consulting Association, Korea Martial Industrial Promotion Association(KOMIPA) etc, are made to seek for solutions. For the wedding industry to revitalize, wedding-product firms, wedding planners and consulting firms must maintain an organic relationship every season. They must systemize a proper distribution system, with wedding-product companies enhancing the quality of products, wedding planners organizing wedding plans with responsibility, and consulting firms focusing not only on profits. In order to make high-valued products, wedding-product companies must put their greatest effort in producing talented minds, and universities with related departments must do so as well. In other words, the industrial and educational section of our society must cooperate through a sophisticated system. In addition, related organizations must act to receive governmental support in order to support the industry.

Analysis on the navigation risk factors in Gunsan coastal area (1) (군산 연안 해역 항행 위해 요소 분석 (1))

  • JUNG, Cho-Young;YOO, Sang-Lok
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.53 no.3
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    • pp.286-292
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    • 2017
  • The Coastal VTS will be continuously constructed to prevent marine traffic accidents in the coastal waters of the Republic of Korea. In order to provide the best traffic information service to the ship operator, it is important to understand the navigation risk factor. In this study, we analyzed the navigational hazards of Gunsan coastal area where the coastal VTS will be constructed until 2020. For this purpose, major traffic flows of merchant ships and density of vessels engaged in fishing were analyzed. This study was conducted by Automatic Identification System (AIS) and Vessel Pass (V-PASS) data. The grid intervals are 10 minute ${\times}$ 10 minute (latitude ${\times}$ longitude) based on the section of the sea. A total of 30 sections were analyzed by constructing a grid. As a result of the analysis, the major traffic flows of the merchant vessels in the coastal area of Gunsan were surveyed from north to south toward Incheon, Pyeongtaek, Daesan, Yeosu, Pusan and Ulsan, and from east to west in the port of Gunsan Port, 173-3, 173-6, 173-8, 183-2, 183-5, 183-8, 183-3, 184-1 and 184-2. As a result of the study, the fishing boats in Gunsan coastal area mainly operated in spring and autumn. On the other hand, the main traffic flow of merchant ships and the distribution of fishing vessels continue to overlap from March to June, so special attention should be paid to the control during this period.