• Title/Summary/Keyword: analysis of similarities

Search Result 793, Processing Time 0.027 seconds

Genetic Relationahips of the Two Morphorogical Types of Myzus persicae(Homoptera:Aphididae) Collected from Tobacco Plants Based on Random Amplified Polymorphic DNA(RAPD) (연초에서 발생하는 복숭아혹진딧물(Myzus persicae)형태형 2종의 Random Amplified Polymorphic DNA(RAPD)을 이용한 유전적 유연관계 분석)

  • 채순용;이기원;김상석;장영덕
    • Korean journal of applied entomology
    • /
    • v.37 no.1
    • /
    • pp.31-37
    • /
    • 1998
  • Random amplified polymorphic DNA (RAPD) markers were used to analyze genetic similarity among 8 clones of apierous green peach aphid, two types (M. persicae Sulzer and M. nicotianae lack man) classified by their mo~hologi~cahla raters and host preference (Blackman, 1987), collected from tobacco plants. The genetic variation among these clones was evaluated by polymerase chain reaction amplification with 20 random primers. The higher GC contents of primers, the better in amplification efficiency of PCR reaction in general. The genetic similarities among eight aphid clones were analyzed from UPGMA (unweighted pair group average method) cluster analysis based on simple matching coefficient. The range of genetic similarity coefficients was 0.414 to 0.808. The most close relationship among the clones was similarity coefficient of 0.808 between the PG2 and the PG3 clone. The eight aphid clones analyzed were clustered into three groups by the genetic similarity coefficient. The first group, PG1, PG2, PG3 clone including in M. persicae type by their morphological characters and RED clone in M. nicotianae type was clustered at the genetic similarity coefficient of 0.643. The second group, GR1, GR2, BRN in M. nicotianae type was at the 0.636;and the third group was DBR clone in M. persicae type. The results did not indicate any correlation between m&-phological types (M. persicae and M. nicotianae) and RAPD polymorphism. We could not detect any obvious genetic relationships of the two morphological types of the green peach aphid collected from tobacco plants.

  • PDF

Genetic Differences and DNA Polymorphisms between the Fleshy Prawn Fenneropenaeus chinensis and Chinese Ditch Prawn Palaemon gravieri

  • Yoon Jong-Man;Kim Jong-Yeon
    • Fisheries and Aquatic Sciences
    • /
    • v.8 no.3
    • /
    • pp.151-160
    • /
    • 2005
  • Genomic DNA samples isolated from Fenneropenaeus chinensis (fleshy prawn; FP) and Palaemon gravieri (Chinese ditch prawn; CDP) collected in the West Sea, off the Korean Peninsula, at Buan, were PCR-amplified repeatedly. The sizes of the DNA fragments generated by seven different primers varied from 50 bp to 1,600 bp. We identified 358 fragments for the FP species and 301 fragments for the CDP species. There were 18 polymorphic fragments (5.03$\%$) for the FP species and 12 (3.99$\%$) for the CDP species. In total, 66 common fragments (average of 9.4 fragments per primer) were observed for the FP species and 44 fragments (average of 6.3 fragments per primer) were observed for the CDP species. The numbers of specific fragments seen for the FP species and CDP species were 38 and 47, respectively. The complexity of the banding patterns varied dramatically between the primers and the two species. In the FP species, a specific fragment of approximately 1,200 bp generated by primer OPB-04 exhibited inter-individual-specific characteristics that were indicative of DNA polymorphisms. Moreover, in the CDP species, a major fragment of approximately 550 bp generated by primer OPB-20 was found to be specific for the CDP. The average bandsharing value between the two prawn species was 0.421$\pm$0.006, and ranged from 0.230 to 0.611. The dendrogram obtained using the data from the seven primers indicated seven genetic clusters: cluster 1, FLESHY 01, 02, 03, and 04; cluster 2, FLESHY 05, 06, and 07; cluster 3, FLESHY 08, 09, 10, and 11; cluster 4, DITCH 13, 14, 16, and 18; cluster 5, DITCH 12, 15, and 17; cluster 6, DITCH 19, 20, and 21; and cluster 7, DITCH 22. The genetic distance between the two prawn species ranged from 0.071 to 0.642. Thus, RAPD-PCR analysis revealed a significant genetic distance between the two prawn species. Using various arbitrary primers, RAPD-PCR may be applied to identify specific/polymorphic markers that are particular to a species and geographic population, and to define genetic diversity, polymorphisms, and similarities among shrimp species.

Exploring Teachers' Responsive Teaching Practice in Argumentation-Based Science Classroom: Focus on Structural and Dialogical Aspects of Argument (논변 활동 중심 과학 수업에서 교사의 반응적 교수 실행 탐색 -논변의 구조적·대화적 측면을 중심으로-)

  • Park, Jiyoung;Kim, Heui-Baik
    • Journal of The Korean Association For Science Education
    • /
    • v.38 no.1
    • /
    • pp.69-85
    • /
    • 2018
  • The purpose of this study is to explore teachers' responsive moves that affect students' argumentation practices, and to propose responsive teaching strategies in argumentation-based science classroom. Two teachers, who have not implemented argumentation in their classes, and 57 students, participated in this study. We recorded and transcribed their classes and interviews for the analysis. According to grounded theory approach, we categorized the teachers' responsive moves as focused on either structural or dialogical aspects of argumentation, and qualitatively analyzed their responsive teaching practices in classes. We discovered that the teachers mostly responded to structural rather than dialogical aspects of argumentation, particularly during the students' small-group discussions. This was mainly due to their instructional goals, which focused on the structural aspect of argumentation, and the limited time available for supporting small-groups. Regarding the structural aspects, those responsive moves that explored the students' thinking or facilitated their reasoning helped them to share their thinking and justify their arguments further with recognition of learning goals in the argumentation activities. Regarding the dialogical aspects, which were seen mostly in whole-class discussions, the moves that underlined similarities and differences between arguments, facilitated the sharing of a small-group's arguments with the entire class, or asked a specific student to evaluate the arguments were notable. These moves supported clarification of various small-groups' arguments, which led to reconstruction of coherent argument through evaluation and rebuttal of these arguments, consequentially facilitating dialogical interactions. Based on these results, we proposed responsive teaching strategies in an argumentation-based science classroom.

Study on the Characteristics of Pop Art shown in Nam June Paik's Media Art Focused on 'Media Extension' and 'Audience Participation' - (백남준 미디어 아트에 나타난 팝 아트의 특성 연구 '매체 확장'과 '관객 참여'를 중심으로 -)

  • Hong, Mi-Hee
    • Cartoon and Animation Studies
    • /
    • s.42
    • /
    • pp.195-212
    • /
    • 2016
  • An interest in 'ordinary things' has been increased because public things become issues as the influence of mass media including mass production has been increased in the 1950s. And this phenomenon drew an art style of pop art in the world of art. Media art means that the fine arts are expressed by means of media such as TV and monitors because media has been developed in the modern society. It started emerging through the artists such as Nam June Paik, Bill Viola, and others in the 1960s. Recently, it can be easily accessible not only at the art museum but also in everyday life such as cafe, park, fashion show, performance, and etc. This study analyzed that how many different techniques of pop art were borrowed by especially Nam June Paik media art and how they influenced it. Accordingly, this study respectively analyzed expressive techniques and characteristics of both pop art and Nam June Paik's media art and then searched for their similarities based on the analysis. Both Nam June Paik's media art and pop art extended media by using various ordinary things in everyday life neglected previously as a material. Next, the characteristic of pop art shown in Nam June Paik's media art is participation with audience. While the arts in the past were high-level culture that only certain people could understand and enjoy, pop art or Nam June Paik's media art is an art trend that has led the popularity of fine arts and audience participation in order to let diverse classes enjoy without any specific knowledge.

A System for Measuring the Similarity and Redundancy of R&D Project (R&D 과제의 유사도 및 중복도 측정 시스템에 관한 연구)

  • Choi, Kook-Hyun;Kang, Yong-Suk;Kim, Jong-Hee;Shin, Yong-Tae;Kim, Jong-Bae
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
    • /
    • 2014.05a
    • /
    • pp.329-331
    • /
    • 2014
  • The analysis of the similarities and redundancies among R&D projects is important for the efficient investment of government budgets. When government R&D projects are planned, the redundancies of research tasks are examined by institutions specializing in research management, relevant offices and departments, and the government to prevent redundant funding. However, as existing similarity analyses depend on methods wherein new task proposals and existing R&D project proposals are compared and looked up based on keywords. This results in vulnerability wherein similarity cannot be accurately measured in the event of partial modifications of the task name or technical substitutions. This study aims to use patent information as characteristics by which R&D project documents can be identified. The patent data used is based on materials officially published by the government's R&D patent trend survey project (http://ipas.rndip.re.kr). The study aims to propose a method by which patent information can be used to analyze the similarity and redundancy among R&D projects when new projects are entered. For this purpose, a similarity measurement model based on set theory and probability theory is presented. The presented measurement model is implemented into an actual system to identify redundant documents, and calculate and show their similarity.

  • PDF

Test of Official Range in Characteristics for Jisan Soil Series (지산통(芝山統)의 토양특성(土壤特性) 범위(範圍) 검정(檢定))

  • Jung, Sug-Jae;Park, Chang-Seo;Hyeon, Geun-Soo;Moon, Joon;Um, Ki-Tae
    • Korean Journal of Soil Science and Fertilizer
    • /
    • v.22 no.2
    • /
    • pp.81-85
    • /
    • 1989
  • The 113 soils representing the Jisan soil series (fine loamy, mixed, mesic fluventic Haplaquepts) as mapped in Korea were to characterize the Jisan soil throughout its official range which was the range of properties used to establish series limits. The samples were stratified according to master horizon designation for statistical analysis. The means in selected soil properties, horizon thickness, solum thickness, soil texture, clay content, pH, BSP, and horizon sequence, were within acceptable limits. The minimum values were considerably lower than the lower limits of the official ranges while the maximum values were above the allowable amount. The ranges of definition degree which mean the test of proper placement of any marginal limits were 0.687 to 0.929. Thus, Jisan series as mapped from other soil bodies in the field could be seen similarities and understood relationships among individuals.

  • PDF

Comparison of hematologic and biochemical values in htPA transgenic pigs (사람 조직 플라스미노겐 활성인자 생산용 형질전환 돼지에서의 혈액학적 성상 비교)

  • Park, Mi-Ryung;Hwang, In-Sul;Lee, Seunghoon;Lee, Hwi-Cheul
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.21 no.12
    • /
    • pp.395-400
    • /
    • 2020
  • Pigs have been used widely in biomedical research owing to their physiologic and anatomic similarities to humans. Analysis of the hematologic and biochemical values in pigs is an important basis for biomedical research and veterinary clinical diagnosis, but research on transgenic pigs has been sparse. This study was conducted to obtain basic data on transgenic pigs and to describe and compare the reference values for hematologic and biochemical parameters in human tissue plasminogen activator (htPA) transgenic pigs vs normal pigs. Blood samples were obtained from 7 normal LY (Landrace-Yorkshire crossbred) pigs and 8 transgenic pigs and 16 hematologic and 15 serum biochemical parameters were tested. Among the hematologic parameters tested, significant differences were observed in the red blood cells (RBC), mean red blood cell hemoglobin (MCH), and lymphocytes (LYM), between the non-transgenic and transgenic pigs. Among the biochemical parameters tested, the blood urea nitrogen (BUN), total protein (TP), cholesterol (CHOL), alanine aminotransferase (ALT), creatinine (CREA), gamma glutamyl transpeptidase (GGT), globin (GOB), and amylase (AMYL) showed significant differences between the two groups. Thus, the values determined in this study can be used as basic reference values for transgenic pigs and will contribute to their use in biomedical research.

Implementation of a Photo-Input Game Interface Using Image Search (이미지 검색을 이용한 사진입력 게임 인터페이스 구현)

  • Lee, Taeho;Han, Jaesun;Park, Heemin
    • KIISE Transactions on Computing Practices
    • /
    • v.21 no.10
    • /
    • pp.658-669
    • /
    • 2015
  • The paradigm of game development changes with technological trends. If the system can analyze and determine undefined inputs, users' input choices are not restricted. Therefore, game scenarios can have multifarious flows depending upon the user's input data. In this paper, we propose a method of including an output plan in the game system that is based on the user's input but is not restricted to predefined choices. We have implemented an experimental game on the Android platform by combining network communication and APIs. The game interface works as follows: first, the user's input data is transmitted to the server using HTTP protocol; then, the server carries out an analysis on the input data; and finally, the server returns the decision result to the game device. The game can provide users a scenario that corresponds to the decision results. In this paper, we used an image file for the user's input data format. The server calculates similarities between the user's image file and reference images obtained from the Naver Image Search API and then returns determination results. We have confirmed the value of integrating the game development framework with other computing technologies demonstrating the potential of the proposed methods for application to various future game interfaces.

Interaction Between Groundwater and Stream Water Induced by the Artificial Weir on the Streambed (하상 인공구조물에 의해 유도되는 지하수-하천수 시스템의 상호작용)

  • Oh, Jun-Ho;Kim, Tae-Hee;Sung, Hyun-Cheong;Kim, Yong-Je;Song, Moo-Young
    • Journal of Soil and Groundwater Environment
    • /
    • v.12 no.2
    • /
    • pp.9-19
    • /
    • 2007
  • This study investigated the interaction between groundwater and stream water systems, which is caused by the artificial weir on streambed, enforcing external stresses on the groundwater system. The study area is in Nami Natural Recreation Woods located in Chungcheongnam-do Geumsan-gun Nami-myeon Geoncheon-ri. In this study both of hydrophysical methods (hydraulic head) and hyrdochemical investigations (pH, EC, major ion analysis) were applied. In order to identify the relationship between each of study results, cross-correlation analysis is performed. From results of hydrophysical methods, water level fluctuation at BH-14, installed by the weir, shows the double-recession pattern much more frequently and much higher amplitudes than the fluctuation at each of other monitoring wells. Using the results by hydrochemical investigations, hydrochemical properties at BH-14 is similar to the hydrochemical characteristics in stream water. To analyze the interrelationships between the results from each of applied methods, cross-correlation analysis was applied. Results from the correlation analyses, water levels at BH-14 and stream weir showed the highest cross-correlation in hydrophysical aspects. On the other hand, the correlation between stream weir and bridge was the highest in hydrochemical aspects. The difference between the results from each of methods is due that the hydrophysical response at BH-14, such as water level, is induced by the pressure propagation-not with mass transfer, but the hydrochemical interaction, caused by mass transport, takes much more times. In conclusion impermeable artificial weir on streambed changes the interfacial condition between the stream and surrounding aquifers. The induced water flux into the groundwater system during flood period make water level at BH-14 increase instantly and groundwater quality higly similar to the quality of stream water. Referred similarities in both of water level and water quality at BH-14 become much higher when water level at weir grow higher.

Comparing Prediction Uncertainty Analysis Techniques of SWAT Simulated Streamflow Applied to Chungju Dam Watershed (충주댐 유역의 유출량에 대한 SWAT 모형의 예측 불확실성 분석 기법 비교)

  • Joh, Hyung-Kyung;Park, Jong-Yoon;Jang, Cheol-Hee;Kim, Seong-Joon
    • Journal of Korea Water Resources Association
    • /
    • v.45 no.9
    • /
    • pp.861-874
    • /
    • 2012
  • To fulfill applicability of Soil and Water Assessment Tool (SWAT) model, it is important that this model passes through a careful calibration and uncertainty analysis. In recent years, many researchers have come up with various uncertainty analysis techniques for SWAT model. To determine the differences and similarities of typical techniques, we applied three uncertainty analysis procedures to Chungju Dam watershed (6,581.1 $km^2$) of South Korea included in SWAT-Calibration Uncertainty Program (SWAT-CUP): Sequential Uncertainty FItting algorithm ver.2 (SUFI2), Generalized Likelihood Uncertainty Estimation (GLUE), Parameter Solution (ParaSol). As a result, there was no significant difference in the objective function values between SUFI2 and GLUE algorithms. However, ParaSol algorithm shows the worst objective functions, and considerable divergence was also showed in 95PPU bands with each other. The p-factor and r-factor appeared from 0.02 to 0.79 and 0.03 to 0.52 differences in streamflow respectively. In general, the ParaSol algorithm showed the lowest p-factor and r-factor, SUFI2 algorithm was the highest in the p-factor and r-factor. Therefore, in the SWAT model calibration and uncertainty analysis of the automatic methods, we suggest the calibration methods considering p-factor and r-factor. The p-factor means the percentage of observations covered by 95PPU (95 Percent Prediction Uncertainty) band, and r-factor is the average thickness of the 95PPU band.