• Title/Summary/Keyword: Environmental adaptability

Search Result 180, Processing Time 0.023 seconds

Effects of Carcinogens and Partial Hepatectomy on the Nitrogen Utilizing and the Xenobiotic Metabolizing Enzymes in the Hepatic Tissues of Rats (발암원과 부분간절제술 처리에 의한 백서 간 조직중 질소이용계 및 이물질 대사계 효소의 변화)

  • 박상철;김응국;곽상준;이건욱;김수태
    • Environmental Mutagens and Carcinogens
    • /
    • v.8 no.1
    • /
    • pp.22-34
    • /
    • 1988
  • The biochemical changes of the hepatic tissues, induced by the carcinogen treatment such as diethylnitrosamine and acetamidofluorene in combination with the partial hepatectomy after Solt and Farber, were determined for the characterization of the induction of the proliferative capacity and the environmental adaptability of the carcinogenic tissues during the malignant transformation process. For the study of the proliferative capacity of the tissues, the activities of the enzymes, related with the nitrogen trapping mechanism, such as glutamine synthetase and gamma-glutamyltranspeptidase, were monitroed, while the cintents of cytochrome P450's and their isozymic patterns as well as the activities of the glutathione S-transferase were determined in the function of time after the hepatocarcinogenic stimuli.

  • PDF

A Study on the Adaptable Long Life Multi-dwelling Housing Design in Korea (융통성을 고려한 장수명 공동주택 디자인에 관한 연구)

  • Kim, Jin-Hee
    • Korean Institute of Interior Design Journal
    • /
    • v.15 no.6 s.59
    • /
    • pp.172-177
    • /
    • 2006
  • Most of the Korean multi-dwelling houses have less than 20 years of lifespan. Because the environmental issues such as energy consumption, limited resources, and demolition waste problems became been more and more critical, we now need to focus on long lasting and adaptable buildings. Korean wall bearing apartment buildings are constructed with site cast concrete for core, exterior, and interior together with pipes varied, so when the buildings are old and life style of the users changes, it is difficult to maintain and renovate these buildings. In this study, to resolve the problems described above, two types of Korean long life multi-dwelling housing models which represent improved durability and adaptability responding user's needs and life style changes were proposed with various methods as follows: Either column and beam structure or flat slab structure was used to utilize space better. To make maintenance easier and renovation economical for both public space and each unit, plumbing pipes, ducts, and conduits were clustered at the cores and public corridors with access doors and light weight partitions with steel studs and raised floors or above-ceiling spaces were used in lieu of site cast concrete walls and floor slabs with varied pipes.

Study on the Adaptability of Hyperbolic Constitutive Model for Rubble Stone (사석지반에 대한 쌍곡선 구성모델의 적용성 연구)

  • Hwang, Se-Hwan;Kim, Jong-Soo;Kwon, Oh-Kyun
    • Journal of the Korean GEO-environmental Society
    • /
    • v.3 no.3
    • /
    • pp.53-63
    • /
    • 2002
  • Until recently the other attempts except linear elastic analysis using assumed elastic modulus had not been made in order to evaluate the settlement of the rock fill materials in Korea. Especially, it was almost impossible to predict the precise settlement of the breakwater structure made with dumped rubble stone. In this study, 3 sets of large scaled triaxial compression tests for porous basaltic quarry rocks were carried out and numerical simulation of those triaxial compression tests were performed applying non linear elastic model. Two stress-strain behaviors were compared to study the adaptability of hyperbolic constitutive model for the rubble stone. The results showed quite good agreements between the two stress-strain behaviors. Thus, the hyperbolic constitutive model is thought to be alternative approach evaluate the settlements of the loose rock-fill material.

  • PDF

Inventory Development according to Aquatic Environment Fitness and Classification Characteristics of Plants for Urban Water Space (수환경 적응도에 따른 식물 목록 구축 및 도시 수 공간에 적용 가능한 식물 분류특성)

  • Li, Lan;Kwon, Hyo Jin;Kim, Hyeong Guk;Park, Mi Ok;Koo, Bonhak;Choi, Il Ki
    • Journal of the Korean Society of Environmental Restoration Technology
    • /
    • v.16 no.2
    • /
    • pp.93-104
    • /
    • 2013
  • The purpose of this study was to develop a list of plants that adapted to the aquatic environment in urban areas based on the list of plants surveyed through literature review and field surveys, and to classify the types of vegetation according to the five categories of plant distributions set by the U.S. Fish and Wildlife Service (1988) in the aspect of the adaptability of plants to the aquatic environment. Results of the classification by category according to the adaptability to the aquatic environment for the plant species surveyed through literature review and field surveys showed that there are 45 species of OBL, 96 species of FACW, 66 species of FAC, and 94 species of FACU, totaling 650 species. In addition, a total of 50 species excluding exotic species, endangered species, and naturally introduced plants are proposed as appropriate plants for the urban aquatic environment that will be artificially constructed. The results of the study can be utilized as the basic information for maintaining diversity and stability of the ecosystem during the restoration of water ecology; they can serve as useful data for the development of an optimum vegetation model when planting in water spaces in the future and preparing proper planting plans for each space. In addition, it is believed that the information will be useful in wetland identification and evaluation by observing plant species that appear only in wetlands.

The Individual Variables, Family and School Environmental Variables That Affect Victimization by Peer Aggression among Adolescents (청소년의 개인적 변인, 가족 및 학교환경 변인이 또래공격피해에 미치는 영향)

  • Lee, Young-Sun;Lee, Kyung-Nim
    • Korean Journal of Human Ecology
    • /
    • v.13 no.5
    • /
    • pp.659-672
    • /
    • 2004
  • This study examines different individual, family, and school environmental variables that affect victimization by peer aggression among adolescents. The sample consists of 868 seventh and eighth graders. Statistics and method for data analysis include Cronbach's alpha, percentage, means, standard deviation, Pearson correlation, multiple regression, and hierarchical regression. The major findings of this study are as follows: First, adolescents, both withdrawn and aggressive, have lower achievement in school work. Boys experience more direct victimization by peer aggression. Adolescents, especially boys, often experience indirect victimization by peer aggression, when they become withdrawn, own lower self-esteem, and have lower achievement in school work. Second, adolescents have more direct victimization by peer aggression when their parents are negligent of them. Also, adolescents seem exposed to indirect victimization by peer aggression when they receive more physical and emotional abuse and negligence from their parents. Third, adolescents experience more victimization by peer aggression-whether it's direct or indirect, when they cannot get adjusted to peer relations and get teachers' supervision. Fourth, as to direct victimization by peer aggression, withdrawal, one of the individual variables, is the most reliable prediction followed by gender, negligence, adaptability in peer relations, aggression, and teacher's supervision in sequence. For indirect victimization by peer aggression, withdrawal is the most reliable prediction followed by adaptability in peer relations, gender, physical and emotional abuse, and negligence in sequence.

  • PDF

Analysis of Convergence Factors Affecting Interpersonal Competence of among Dental Hygiene Students (일부 치위생과 학생들의 대인관계 유능성에 영향을 미치는 융합적 요인 분석)

  • Seong, Mi-Gyung;Lee, Yu-Hee;Yun, Jung-Won
    • Journal of the Korea Convergence Society
    • /
    • v.11 no.2
    • /
    • pp.45-51
    • /
    • 2020
  • Dental hygienists students are required to be able to interact and maintain relationships with dentists and patients. Therefore, the purpose of this study was to identify the relations affecting interpersonal competence of some dental hygiene students, and to provide the necessary data for nurturing competent dental hygienists. The survey was conducted on 293 dental hygiene students in M university. The level of significance was .05 and the statistical program was SPSS win 25.0. As a result of interpersonal competence according to general characteristics and interpersonal characteristics, significant results were found in the degree of human relations and new environmental adaptability. As a result of correlation analysis between subvariables of interpersonal competence, all showed significant positive correlation. Factors affecting interpersonal competence showed significant positive effects on the degree of human relationship(p=.019) and the new environmental adaptability(p=.001). Interpersonal competence are important in the clinic. Therefore, a convergent analysis of the factors influencing is required.

A study on the one-piece dress design wearable during pregnancy and post-natal period (임신시기 및 산후에 착용가능한 원피스드레스 디자인 연구)

  • Jang, Hyo-Cheon;Park, Sun-Kyung
    • The Research Journal of the Costume Culture
    • /
    • v.23 no.2
    • /
    • pp.337-352
    • /
    • 2015
  • This study suggests designs of maternity clothes wearable after childbirth and aims at confirming that maternity wear is continuously wearable during a post-natal period. As for research methods, theoretical and empirical studies with research on a production of work were conducted, focusing on the design development of the maternity dress which may be worn even after childbirth. The results of theoretical and empirical studies possibly presented various designs which require fashionability going with the trend of time. The maternity wear also requires the adaptability for a changing body shape to enable a woman to wear it during a pregnancy period and after childbirth. Besides, the convenience of dressing and undressing with wearing comfort is considered. 6 sets of one-piece dress were made as the result of the study and three factors of fashionability, adaptability and convenience were considered. The conclusions are as follows : Firstly, it verified that the maternity wear is fashionable clothes not to cover protruded abdomen but to satisfy women's desire of self expression. Secondly, it overcame the limit of dress design through fitting it to completely different two body sizes and shapes with design factors and patterns. Lastly, it suggested a research model of maternity wear corresponding to economical, environmental and ethical principles as giving an effect of "two" dresses with one. This study presented a new direction of design study with meaningful actions of fashion designing in the aspects of economical, environmental and ethical consumption unlike artificial disposal on SPA brands.

Adoption of Environment-Friendly Rice Farming System and Adjustment of Food Self-Sufficiency Policy (친환경(親環境) 쌀농업체계(農業體系)로의 전환(轉換)과 식량수급정책(食糧需給政策)의 조정문제(調整問題))

  • Kwon, Yong-Dae
    • Korean Journal of Agricultural Science
    • /
    • v.28 no.1
    • /
    • pp.48-58
    • /
    • 2001
  • This study was conducted to investigate the effects of environmental sound rice farming method on the productivity of rice industry which may result in impacts on the staple food securities. Recently fanners have been concerned about adopting new rice cultivation method such as organic and low input farming system in which fertilizer and pesticide can be substantially reduced so as to alleviate the burden of agro-ecosystem. However, It has been argued about whether or not there are negative impacts on the self sufficiency rate of food, income of farm household and technological adaptability. Therefore this study examined the productivity trend of environmental rice farming system and predicted the long term rice self-sufficiency rate when environmental rice farming system are adopted by assuming various scenarios. It was estimated that rice self-sufficiency rate can be decreased up to 52.2% by 2010. Based on the analysis of results, policy recommendations for environmentally sound rice farming were suggested as follows: 1) gradual adopting and transferring of environmental rice cultivation method, 2) increasing profitability of rice growing fanners 3) developing the farm level technology specific to Korean farming condition, 4) institutionalization of direct payments for encouraging environmental rice fanning.

  • PDF

The Approach of Environmental Design on the System of Pattern Language (패턴언어 체계에 기초한 환경디자인 접근방법)

  • 임은영
    • Korean Institute of Interior Design Journal
    • /
    • no.28
    • /
    • pp.60-67
    • /
    • 2001
  • Built-up environments by humans are cultural byproducts which combine social ideology and architectural paradigm. The process of modernization in the Western countries has the characteristic of decisive paradgm based on materialism. Therefore, environmental design in modern world failed to focus on the essential features of humanity which are the subject of space and replaced it for objective and unilateral architectural environments, instead. Environment without supporting the human psychological and complicated behaviorism is as same as the hardware without the vitality. under these regards, this study will cover the design approach of pattern language as a design method of environment design. The purpose of design approach by pattern language lies in creating the space of flexibility, adaptability and strong vitality. It is summed up as humanization in space and it helps the user to verbalize individualized space language for their own. The range and method of in the study attribute to the pattern language of Christopher Alexander and a researcher' method on them. In premise that human behavior ought to the multilateral and indefinite under rapid change of circumstances in modern world, th study tried to find the design method stimulating creative behavior of human being.

  • PDF

Introduction to the Dutch Goat Industry and a Cheese Making Farm (네덜란드 유산양 산업과 치즈생산 목장 Stroese Dame)

  • Ham, Jun-Sang
    • Journal of Dairy Science and Biotechnology
    • /
    • v.33 no.1
    • /
    • pp.69-73
    • /
    • 2015
  • The world is presently facing key challenges due to the population explosion, shortages in renewable sources of energy, and environmental problems. One important aspect of ecological intensification is the use and improvement of marginal lands and spaces often ignored, until now. Goats are known to be well adapted to scrubs, forage trees, and rangelands. Goats could contribute marginally, but significantly, to the growing demand for meat without using arable lands. Since 2000, there were 752 million goats globally, and goat livestock increased by 26.8% in 2010, accounting for 954 million heads. Goats are widespread due to their high adaptability to different environmental conditions and nutritional regimes, high productivity, and low maintenance cost. A significant growth in goat number was noticed in the period 2000~2010 in the Netherlands (+113.83%), in spite of the 9.75% decrease in EU-27. A cheese making goat farm in the Netherlands showed how it can survive in the one fifth size of the average. It may be a good model for the Korean goat industry since it uses seasonal breeding and results in reduced "goaty" flavor in the cheese.

  • PDF