• Title/Summary/Keyword: taxonomic relationship

Search Result 117, Processing Time 0.025 seconds

Qualitative Research Investigating Patterns of Health Care Behavior among Korean Patients with Chronic Hepatitis B (B형 간염 환자의 건강관리 양상 탐색을 위한 질적 연구)

  • Yang, Jin-Hyang;Cho, Myung-Ok;Lee, Hae-Ok
    • Journal of Korean Academy of Nursing
    • /
    • v.39 no.6
    • /
    • pp.805-817
    • /
    • 2009
  • Purpose: This ethnograpy was done to explore patterns of health care behavior in patients with chronic health problems. Methods: The participants were 15 patients with chronic hepatitis B and 2 family members. Among the patients 4 had progressed to liver cirrhosis and liver cancer. Data were collected from iterative fieldwork in a department of internal medicine of I hospital. Data were analyzed using text analysis and taxonomic methods. Results: Illness and disease, relationship between health care givers and clients, and communication patterns between health professions and clients were discussed as the context of health care behavior. Health care behavior of the participants was categorized by its focus: every day work centered, body centered, organ centered, and pathology centered. Conclusion: Participants' health care behavior was guided by folk health concept and constructed in the sociocultural context. Folk etiology, pathology, and interpretation of one's symptoms were influencing factors in illness behavior. These findings must be a cornerstone of culture specific care for the chronic diseases.

Molecular analyses and reproductive structure to verify the generic relationships of Hypnea and Calliblepharis (Cystocloniaceae, Gigartinales), with proposal of C. saidana comb. nov.

  • Yang, Mi Yeon;Kim, Myung Sook
    • ALGAE
    • /
    • v.32 no.2
    • /
    • pp.87-100
    • /
    • 2017
  • The genera Hypnea and Calliblepharis of the family Cystocloniaceae are discriminated by their female reproductive structure, especially in the formation of carposporangia and gonimoblasts. Hypnea saidana, once classified based on obsolete evidence, has not been studied phylogenetically using molecular analysis and detailed reproductive structure though it shares many morphologic features with the genus Calliblepharis. To provide better understanding of generic relationship of H. saidana with Hypnea and Calliblepharis, we carried out molecular analyses using the nuclear-encoded small subunit ribosomal DNA (SSU) and chloroplast-encoded large subunit of the RuBisCO (rbcL), and exact morphological observations focusing on the reproductive structures of wild specimens. Our molecular phylogeny showed that H. saidana is closely related to Calliblepharis, but distinct from the clade of Hypnea. Female reproductive structure of H. saidana characterized by upwardly developing chains of carposporangia, central reticulum of cell, and gonimoblast filaments not connected to the pericarp provides definite evidence to assign the taxonomic position of this species to Calliblepharis. Based on our combined molecular and morphological analyses, we have proposed Calliblepharis saidana comb. nov., expanding the distribution of Calliblepharis habitat from the eastern Atlantic South Africa, the northern Indian Ocean, Australasia, and Brazil to the western Pacific Ocean.

A Taxonomic Examination of Polygonatum Rhizoma and Polygonati Odorati Rhizoma Based on RAPD Analysis (RAPD 분석에 의한 황정(廣精)과 위유(萎?)의 분류 검토)

  • Lee, Mi-Young;Kim, Ki-Hoon;Kim, Young-Hwa;Oh, Seung-Eun;Kang, Kwon-Kyoo;Ko, Byong-Seob
    • Korean Journal of Pharmacognosy
    • /
    • v.35 no.4 s.139
    • /
    • pp.265-270
    • /
    • 2004
  • The phylogenetic relationship of Polygonatum species were examined by RAPD analysis. Polygonatum Rhizoma is called 'Whang-jung', and used Polygonatum sibiricum Redoute in defined as a source plant in Korean Pharmacopoeia. Polygonati Odorati Rhizoma is called 'Wui-yu', and P. odoratum Druce var. pluriflorum Ohiwi and related species are defined is source plants in Korean Herbal Pharmacopoeia. In UPGMA analysis, Polygonum was divided into two major groups. Polygonatum sibiricum and P. stenophyllum was placed in a cluster. On the other hand, P. falcatum A. Gray was included in the other cluster comprising. P. odoratum and related species, which are used as source plants for Polygonati Odorati Rhizome.

Genetic Diversity of Ascaris in China Assessed Using Simple Sequence Repeat Markers

  • Zhou, Chunhua;Jian, Shaoqing;Peng, Weidong;Li, Min
    • Parasites, Hosts and Diseases
    • /
    • v.56 no.2
    • /
    • pp.175-181
    • /
    • 2018
  • The giant roundworm Ascaris infects pigs and people worldwide and causes serious diseases. The taxonomic relationship between Ascaris suum and Ascaris lumbricoides is still unclear. The purpose of the present study was to investigate the genetic diversity and population genetic structure of 258 Ascaris specimens from humans and pigs from 6 sympatric regions in Ascaris-endemic regions of China using existing simple sequence repeat data. The microsatellite markers showed a high level of allelic richness and genetic diversity in the samples. Each of the populations demonstrated excess homozygosity (Ho0). According to a genetic differentiation index (Fst=0.0593), there was a high-level of gene flow in the Ascaris populations. A hierarchical analysis on molecular variance revealed remarkably high levels of variation within the populations. Moreover, a population structure analysis indicated that Ascaris populations fell into 3 main genetic clusters, interpreted as A. suum, A. lumbricoides, and a hybrid of the species. We speculated that humans can be infected with A. lumbricoides, A. suum, and the hybrid, but pigs were mainly infected with A. suum. This study provided new information on the genetic diversity and population structure of Ascaris from human and pigs in China, which can be used for designing Ascaris control strategies. It can also be beneficial to understand the introgression of host affiliation.

Palynological contributions to the taxonomy of family Oleaceae, with special empahsis on genus Forsythia (tribe Forsytheae)

  • Lee, Sangtae
    • Korean Journal of Plant Taxonomy
    • /
    • v.41 no.3
    • /
    • pp.175-181
    • /
    • 2011
  • Traditionally, the Oleaceae has been divided into subfamilies Oleoideae and Jasminoideae. In the present paper, the taxonomical results so far made on the family were reviewed on the basis of palynology. The subfamilial classification is not well supported palynoligically, because both Myxopyrum of Jasminoideae and Comoranthus of Oleoideae having foveolate surface are well distinguished from the rest of the family having reticulate surface. The recent subfamily Nyctanthoideae (Takhtajan, 1977) including the monotypic Nyctanthus, was suggested to be included within the Jasminoideae although its closest relative on the palynological basis is different from that on the molecular basis. Tribal classification systems of the Jasminoideae are not well supported palynologically on the basis of surface character: presence or absence of bands on the mural ridge surface of the reticulum. On the basis of palynology, tribe Forsythiae including Abeliophyllum, Fontanesia, and Forsythia is monophyletic, and Fontanesia is well distinguished from the rest two. Korean species of Forsythia is divided into two: Forsythia koreana group and F. ovata-nakaii-saxatilis group. Recent discovery of F. saxatilis at a locality of F. ovata raised a question if the distinction between the two species on the basis of hairiness would be right. In the recent molecular studies, F. saxatilis var. lanceolata seems to be identified as F. saxatilis. Molecular studies showed that F. saxatilis (seemingly var. lanceolata or var. pilosa) is close to F. koreana. The fact in which the molecular result showed a close relationship between F. saxatilis varieties and F. koreana, is controversial to the result by floral and vegetative morphology. An intensive taxonomic study of these taxa would be needed.

An Ethnography on Fundamental Nursing Practice Class (기본간호학실습 수업의 문화기술지 연구)

  • An, Hyo-Ja;Park, Hyun-Ju
    • Journal of Korean Academy of Fundamentals of Nursing
    • /
    • v.25 no.1
    • /
    • pp.33-45
    • /
    • 2018
  • Purpose: Objectives of this study were to identify and describe cultural meaning for nursing students in the class in fundamental nursing practice. Methods: Data were collected from November 2016 to May 2017 included focus group interviews and participants observation. The key informants in this study included 23 nursing students divided into 3 focus groups who had taken the course in fundamental nursing practice in university U and university S in Kyungpook, and university D in Jeonnam. Interviews continued until no new information could be identified from transcripts. Data were analyzed using the taxonomic analysis method developed by Spradley. Results: Based on the data acquired from the interviews, cultural domains in the class "fundamental nursing practice" were classified as 'community oriented activities', 'learning and playing space', 'relationship of difference and discrimination', 'time for present and future'. Conclusion: The culture in the class "fundamental nursing practice" could be summarized as 'non-standardized learning with team dynamics'. Also nursing students learned about a small society whose members are becoming nurses. Results indicate that it is critical for professors to understand students' values, beliefs and their attitude in order to aid in adjustment to class.

Analysis of Transformation Process of the Parents and Children who participated in the Filial Therapy (놀이치료를 활용한 부모교육 프로그램에 참여한 부모의 공감능력 및 자녀의 정서행동문제의 변화과정 분석)

  • Jang, Mi-Kyung;Son, Kum-Ok;Kim, Seong-Eun
    • Korean Journal of Human Ecology
    • /
    • v.18 no.2
    • /
    • pp.325-340
    • /
    • 2009
  • The study aims at verifying the parents' and children's changing process while using parents' play therapy in parent education program to improve the relationship between parents and their children. The experimental group consisted of 42 mothers who have preschoolers in the age range of 3-5, and was compared with the control group of 42 mothers. They joined together a series of 8 sessions (2 hours? or 16 hours?) once a week and took pre- and post-test. All of the sessions were recorded with a VCR camera. All the changing process the mothers showed was analyzed qualitatively to see what happened to the mothers and their children by the methods of coding, taxonomic analysis, critical events, componential analysis, and casual chain analysis suggested by Spradley(1980). The analyses showed that the mothers who participated in the program come to take more sympathetic, receptive attitudes to their children, while the children get better in the children's emotional behavioral problems in the qualitative analysis as well as the quantitative analysis.

MALDI-TOF MS System for the Identification of Microorganisms in Milk and Dairy Products (우유 및 유제품 중 미생물 동정을 위한 MALDI-TOFMS활용)

  • Kim, Hyoun Wook;Ham, Jun-Sang;Seol, Kuk-Hwan;Han, Sangha;Park, Beam Young;Oh, Mi-Hwa
    • Journal of Dairy Science and Biotechnology
    • /
    • v.30 no.2
    • /
    • pp.131-137
    • /
    • 2012
  • Rapid and reliable identification of microorganisms is a key for tracing the relationship between the target bacteria and related infectious diseases. Various identification methods such as classical phenotypic analysis, numerical taxonomic analysis, and DNA sequencing have been widely used to classify microorganisms in milk and dairy products. Matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry (MS) identifies targeted bacteria in milk and milk products. Several studies have demonstrated that MALDI-TOF MS identification is an efficient and inexpensive method for the rapid and routine identification of isolated bacteria. MALDI-TOF MS could provide accurate identification of bacteria in milk and milk products at the serotype or strain level and enable antibiotic resistance profiling within minutes.

  • PDF

신생모험기업의 전략유형에 관한 연구

  • 백경래;박상문;배종채
    • Journal of Technology Innovation
    • /
    • v.4 no.1
    • /
    • pp.1-26
    • /
    • 1996
  • Traditional studies of new venture performance have focused on the characteristics of entrepreneurs and have shown conflicting results on the relationship between the characteristics and performance of new ventures. Recently, some researchers have broadened their search to include aspects of the industry and the strategy of new ventures. The purposes of this study are to identify wtrategic archetypes of new ventures based on the taxonomic approach and to explain the differences in new venture characteristics and performance among strategic archetypes. To find the strategic archetypes, 114 new venture CEOs from various industries were asked to describe their ventures' competitive strategy through 19 questionnaire items on competitive methods. Using factor analysis and subsequent cluster analysis, four archetypes were identified such as : versatile type, technology-driven type, market-oriented type, and cost reduction type. The results imply that there exist different types of venture strategy even among new technology-based venture firms in Korea, and show the differences in performance among strategic archetypes: market-oriented type and versatile type are better than cost reduction type in terms of growth rate and profitability. Because the venture strategy in identified as a major determinant of the venture performance in this study, the choice of venture strategy suitable for firm's industrial characteristics and internal resource bases becomes a very strategic decision for firm's sustained growth. Further studies are needed to strengthen some methodological limitations of the study.

  • PDF

Genetic Variations and Phylogenetic Relationships of Tribe Forsythieae (Oleaceae) Based on RAPD Analysis

  • Tae Kyoung-Hwan;Kim Dong-Kap;Kim Joo-Hwan
    • Plant Resources
    • /
    • v.8 no.2
    • /
    • pp.135-144
    • /
    • 2005
  • RAPD analysis was performed to discuss the taxonomic status and phylogenetic relationships among the tribe Forsythieae and related groups. Two hundred and eighteen scorable polymorphic bands were detected from fourteen oligonucleotide primers. From the results of RAPD analysis by Nei and Li's genetic distance, each individuals of Abeliophyllum distichum showed high genetic relationships with ranging from 0.085 to 0.301, also the genus Forsythia showed from 0.042 to 0.655 among the species and populations. But, Abeliophyllum and Forsythia showed distinct dissimilarity, ranging from 0.610 to 1.258. And genetic differences among the population of Forsythia were 0.042 in F. koreana, 0.275 in F. saxatilis, 0.275 in F. ovata, 0.279 in F. nakaii, and 0.249 in F. viridissima. The UPGMA phenogram of tribe Forsythieae based on the results of RAPD analysis were presented that Abeliophyllum is distinct genus different from Forsythia. NJ tree which applied as the outgroups Fontanesia and Jasminum was derived, and it showed that tribe Forsythieae might be a monophyletic group. The genus Fontanesia was showed as sister group of tribe Forsythieae. Among the populations of taxa in Forsythia, F. koreana and F. saxatilis were more closely related, and F. ovata and F. nakaii were very closely related to F.japonica. And Fontanesia was the sister group of tribe Forsythieae.

  • PDF