• Title/Summary/Keyword: principal concepts

Search Result 53, Processing Time 0.028 seconds

A Study on the Consuming Condition of Cosmetics of Female Students in Middle and High Schools (서울시내(市內) 여중고생(女中高生)의 화장품(化粧品) 소비실태(消費實態) 조사연구(調査硏究))

  • Cho, Kyu-Hwa;Chun, Bo-Kyung
    • Journal of Fashion Business
    • /
    • v.4 no.3
    • /
    • pp.141-155
    • /
    • 2000
  • The purpose of this study is to offer basic data to adolescents' cosmetic culture by investigating and analysing the choices made by female students who have been becoming principle consumers of cosmetics these days. Firstly, social and cultural backgrounds and concepts of N generation, and then characteristics and influencing powers of female students were reviewed. And this study also included questionnaire surveys of 500 female students in middle and high schools located in Seoul. Data were processed using a SPSS$^+$ program and analyzed by using frequency, percentage and the $X^2$-test. The major findings run as follows: Female students have the effects of spreading their words quickly and abilities of making a decision what to buy. And they accept consuming behaviors itself as a part of cultural lives. Therefore, industries have acknowledged them as new principal consumers with a powerful influence in the market. They also play an important role in active consumer as emotional generation who has distinct personalities and prefer fashion trends, changes and innovations. They show conformities with their peer groups and they also want to identify themselves with characters or stars. The cosmetic behaviors of female students relating to demographic characteristics showed a significant relation to grades, majors, school groups and places of residence. Female students have a lot of interest and knowledge about cosmetics. And they use various cosmetic products. This study demonstrated the age for using make-up for the first time has been becoming younger more and more. Recently, female adolescents tend to use face powder, lip gloss, mascara and eye shadow. It is assumed that cosmetic purchases of female students can be considered as an impulsive aspects. However, before purchases, the proportion of students having any particular cosmetic brand in mind previously has been increasing. They take into consideration skin safety, the quality of product and color, when purchasing cosmetic products.

  • PDF

New surveillance concepts in food safety in meat producing animals: the advantage of high throughput 'omics' technologies - A review

  • Pfaffl, Michael W.;Riedmaier-Sprenzel, Irmgard
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.31 no.7
    • /
    • pp.1062-1071
    • /
    • 2018
  • The misuse of anabolic hormones or illegal drugs is a ubiquitous problem in animal husbandry and in food safety. The ban on growth promotants in food producing animals in the European Union is well controlled. However, application regimens that are difficult to detect persist, including newly designed anabolic drugs and complex hormone cocktails. Therefore identification of molecular endogenous biomarkers which are based on the physiological response after the illicit treatment has become a focus of detection methods. The analysis of the 'transcriptome' has been shown to have promise to discover the misuse of anabolic drugs, by indirect detection of their pharmacological action in organs or selected tissues. Various studies have measured gene expression changes after illegal drug or hormone application. So-called transcriptomic biomarkers were quantified at the mRNA and/or microRNA level by reverse transcription-quantitative polymerase chain reaction (RT-qPCR) technology or by more modern 'omics' and high throughput technologies including RNA-sequencing (RNA-Seq). With the addition of advanced bioinformatical approaches such as hierarchical clustering analysis or dynamic principal components analysis, a valid 'biomarker signature' can be established to discriminate between treated and untreated individuals. It has been shown in numerous animal and cell culture studies, that identification of treated animals is possible via our transcriptional biomarker approach. The high throughput sequencing approach is also capable of discovering new biomarker candidates and, in combination with quantitative RT-qPCR, validation and confirmation of biomarkers has been possible. These results from animal production and food safety studies demonstrate that analysis of the transcriptome has high potential as a new screening method using transcriptional 'biomarker signatures' based on the physiological response triggered by illegal substances.

Nanocomposite Magnetic Materials

  • Ludwig Schultz;Alberto Bollero;Axel Handstein;Dietrich Hinz;Karl-Hartmut Muller;Golden Kumar;Juergen Eckert;Oliver Gutfleisch;Anke Kirehner Aru Yan
    • Journal of Powder Materials
    • /
    • v.9 no.6
    • /
    • pp.381-393
    • /
    • 2002
  • Recent developments in nanocrystalline and nanocomposite rare earth-transition metal magnets are reviewed and emphasis is placed on research work at IFW Dresden. Principal synthesis methods include high energy ball milling, melt spinning, mold casting and hydrogen assisted methods such as reactive milling and hydrogenation-disproportionation-desorption-recombination. These techniques are applied to NdFeB-, PrFeB- and SmCo-type systems with the aim to produce high remanence magnets with high coercivity. Concepts of maximizing the energy density in nanostructured magnets by either inducing a texture via anisotropic HDDR or hot deformation or enhancing the remanence via magnetic exchange coupling are evaluated. With respect to high temperature applications melt spun $Sm(Co_{0.74}Fe_{0.1}Cu_{0.12}Zr_{0.04})_{7.5}$ ribbons were prepared, which showed coercivities of up to 0.53 T at 50$0^{\circ}C$. Partially amorphous $Nd_{60}Fe_xCo_{30-x}Al_{10}(0{\leq}x{\leq}30)$ alloys were prepared by copper mold casting. The effect of transition metal content on the glass-forming ability and the magnetic properties was investigated. The $Nd_{60}Co_{30}Al_{10}$ alloy exhibits an amorphous structure shown by the corresponding diffraction pattern. A small substitution of Co by 2.5 at.% Fe results In the formation of Fe-rich crystallites embedded in the Nd-rich amorphous matrix. The Fe-rich crystallites show hard magnetic behaviour at room temperature with a coercivity value of about 0.4 T, relatively low saturation magnetization and a Curie temperature of 500 K.

A Study on the Agency Theory and Accounting (에이전시이론과 회계감사에 관한 연구)

  • 공해영
    • Journal of Korean Society of Industrial and Systems Engineering
    • /
    • v.12 no.20
    • /
    • pp.123-138
    • /
    • 1989
  • The primary objective of the agency research in the game theory lives in the maintenance of Pareto is optimal condition for the optimal incentive contract. The basic concepts which are related to this objective are reviewed in connection with the general assumptions to model it, the moral hazard and adverse selection which arised from the information asymmetry, and finally the problem of risk distribution. The demand for auditing and the role of auditor have been addressed by ASOBAC. Issues which an auditor is explicitly introduced in a principal-agent framework have been addressed in this paper. These issues must be confronted to appropriately with the auditor, and to achieve an adequate understanding of optimal confronting arrangement with the auditor. The first step in introducing an auditor into this analysis is to examine the game-theoretic foundation of such a expended agency model. The Mathematical program formulated may not yield solution that are resonable. This arises because the program may call for the auditor and manager to play dominated Nash equilibra in some subgame. The nontrivial natures of the subgame implies that randomized strategies by the auditor and manager nay be of crucial importance. The possibilities for overcoming the randomized strategy problem were suggested; change the rule of the game and or impose covexity condition. The former seems unjustifiable in on auditing context, and the latter promising but difficult to achieve. The discussion ended with an extension of the revelation principle to the owner manager-auditor game, assuming strategies. An examination of the restriction and improvement direction of the basic concept of agency theory was addressed in the later part of this paper. Many important aspects of auditor incentives are inherently multiple-agent, multiple-period, multiple-objectine, phenomena and require further analyses and researches.

  • PDF

A Study on the Consuming Condition of Cosmetics of Female Students in Middle and High Schools (서울시내(市內) 여중고생(女中高生)의 화장품(化粧品) 소비실태(消費實態) 조사연구(調査硏究))

  • Cho, Kyu-Hwa;Chun, Bo-Kyung
    • Journal of Fashion Business
    • /
    • v.4 no.4
    • /
    • pp.107-121
    • /
    • 2000
  • The purpose of this study is to offer basic data to adolescents' cosmetic culture by investigating and analysing the choices made by female students who have been becoming principle consumers of cosmetics these days. Firstly, social and cultural backgrounds and concepts of N generation, and then characteristics and influencing powers of female students were reviewed. And this study also included questionnaire surveys of 500 female students in middle and high schools located in Seoul. Data were processed using a SPSS$^+$ program and analyzed by using frequency, percentage and the $X^2$-test. The major findings run as follows: Female students have the effects of spreading their words quickly and abilities of making a decision what to buy. And they accept consuming behaviors itself as a part of cultural lives. Therefore, industries have acknowledged them as new principal consumers with a powerful influence in the market. They also play an important role in active consumer as emotional generation who has distinct personalities and prefer fashion trends, changes and innovations. They show conformities with their peer groups and they also want to identify themselves with characters or stars. The cosmetic behaviors of female students relating to demographic characteristics showed a significant relation to grades, majors, school groups and places of residence. Female students have a lot of interest and knowledge about cosmetics. And they use various cosmetic products. This study demonstrated the age for using make-up for the first time has been becoming younger more and more. Recently, female adolescents tend to use face powder, lip gloss, mascara and eye shadow. It is assumed that cosmetic purchases of female students can be considered as an impulsive aspects. However, before purchases, the proportion of students having any particular cosmetic brand in mind previously has been increasing. They take into consideration skin safety, the quality of product and color, when purchasing cosmetic products.

  • PDF

Assessment of Earthquake Disaster Risk in Seoul Metropolitan Area (서울지역 지진 재해 위험도 평가)

  • Lee, Chang-Soo
    • Journal of the Korean Society of Hazard Mitigation
    • /
    • v.5 no.4 s.19
    • /
    • pp.71-78
    • /
    • 2005
  • The principal basic concepts of aseismic design minimize damage of human-life and have little probability during life of structures. For detailed understanding of the design, the best reasonable countermeasure can be possible equally the smallest damage of human-life and economic loss. As a result, it can be achieved by notion of not structure-centered but city-centered, the notion is actualized by development of a macro-level evaluation. A seismic damage between city and country is different. And the larger the city then, the greater the loss by rather collateral hazards than collapse of structures. Hence, the macro-evaluation of an earthquake disaster is suitable for an old city where is center of political and economic activity, and is concentration of population and infrastructure. This study aims to develop comprehensive earthquake desaster risk index, and assesses relative earthquake risk of six zones in Seoul metropolitan area.

A Study on Cultivating Korean Chefs for the Globalization of Korean Food (한식 세계화를 위한 한식조리사 양성 방안 연구)

  • Min, Kye-Hong
    • Korean journal of food and cookery science
    • /
    • v.25 no.4
    • /
    • pp.506-512
    • /
    • 2009
  • The principal objective of this study is to determine the most appropriate methods to increase global recognition of Korean food. In service of this objective, interviews were conducted with Korean food specialists who worked for a Korean culinary educational institute in Seoul, as well as cooking experts who worked for restaurants in super deluxe hotels. The study was conducted for 10 days from Feb $21^{st}$ to March $2^{nd}$ in 2009. The results of the study were summarized and synthesized into some key opinions. First, one of the main concepts in Korean culinary education should involve the selection of a small group of the best members and training them to a world class level at a traditional HanOk style institute. Second, to establish a standard for trainee recruitment, we selected a group of members consisting of about 20 persons over the age of 18 years who had earned a degree or were scheduled to graduate from university chef training and had also worked for over 5 years in the field, additionally, foreigners were allowed to apply to the institute. The educational term is one year and some benefits, such as a fixed amount of subsidies to help in daily living, free dormitory housing a certificate of course completion, and an employment guarantee. Third, the educational program consisted of two stages one was the specialist course in which traditional foods were covered and the other was the menu development course, which dealt with the creation of new Korean foods. Fourth, unique programs, including specialized foreign foods experience halls or commission education, were instituted in an effort to raise the level of world recognition of the superiority of Korean food.

Use Impact Assessment and Management System on the Forest Recreation Site from an Ecological Perspective - Recreation Opportunity Spectrum as a Tool of Forest Recreation Site Planning and Management - (생태학적(生態學的) 접근(接近)을 통한 삼림휴양지(森林休養地)의 이용영향평가(利用影響評價) 및 관리체계(管理體系) -삼림휴양지(森林休養地) 계획(計劃) 및 관리도구(管理道具)로서의 레크리에이션 기회분포역분석(機會分布域分析) 기법(技法))

  • Park, Bong Woo;Haas, Glenn E.
    • Journal of Korean Society of Forest Science
    • /
    • v.81 no.4
    • /
    • pp.372-382
    • /
    • 1992
  • Recreation planning is essential activity to meet changing demands and to protect the resources. The recreation opportunity specturm(ROS) system is a principal part of a recreational management planning. In this study, the basic concepts and tenets of the ROS system described and reviewed the feasibility of applying to forest recreation planning to the Korean national forest. In Korea, the forest land as a major recreation place has used without the rational planning process. The control for the laissez-faire use on the forest area, the classification of recreational opportunity settings is the most important process and then it make a useful tool for providing proper recreational opportunity and site development guidance. Opportunity settings classification can help maintain diversity and enhance protection of forest resources. It can also improve the quality of recreational experiences and the management action guidances. GIS technology using the ARC/INFO could be useful in current attempts to identify analysis areas for predictive modeling of forest recreation site planning.

  • PDF

A Study of High School Students' and Science Teachers' Understanding of Ideal Conditions involved in the Theoretical Explanation and Experiment in Physics: Part II- Focused on the Implications to the Physics Learning - (물리학에서 이론적 설명과 실험에 포함된 이상조건에 대한 고등학생과 과학교사의 이해조사 II-이상화가 물리학습에 주는 시사점을 중심으로-)

  • Park, Jong-Won;Chung, Byung-Hoon;Kwon, Sung-Gi;Song, Jin-Woon
    • Journal of The Korean Association For Science Education
    • /
    • v.18 no.2
    • /
    • pp.245-256
    • /
    • 1998
  • In this study, we discussed about the implications of the idealization, which take an important role in physics, to the physics education. First, understanding of the idealization help the physics learning itself. This is because that various types of idealizations are included in the physics terms and concepts, derivation processes of physics laws and formulas, and explanation of natural phenomena and problem solving activities. Second, understanding of the idealization can help the application of the physics world to the real world. That is, by understanding the extent and the limit of idealization used in physics world, physics students can understand the discrepancies between the real world and the physics world. And also, by modifying or eliminating the idealization, students can extend the extent of understanding about how predictions based on the idealization used in the physics world will change. To do this, we suggested the application of computer simulation program in physics laboratories. Third, idealization take an important role in the inquiry learning for students' originality. The activities of identifying or controlling the variables, as one of the principal factors of scientific inquiry, need the appropriate establishment of the ideal conditions. And to analyze the limiting case or practice the thought experiments for understanding the impossible situation in the real world, ideal conditions also are needed. This study discussed above three aspects with various concrete examples and, with Park et al.'s study (Park et al., 1998), present the theoretical basis for the study of students' and teachers' understanding the idealization.

  • PDF

Maternity, Suffrage, War, and State: A Diachronic Review of the Women's Movements in Modern Japan (모성·참정권·전쟁 그리고 국가 - 근대 일본 여성운동의 통시적 고찰)

  • Lee, Eun-Gyong
    • Cross-Cultural Studies
    • /
    • v.43
    • /
    • pp.79-113
    • /
    • 2016
  • This study aims to diachronically explore the women's movements in modern Japan by focusing on three key words, 'maternity,' 'suffrage,' and 'war,' in uncovering how these concepts relate to Japan as a state. In particular, this study sheds light on the policies toward women not from the perspective of the state, but rather from women's perspective and evaluates their expectations toward the 'state' thorough the activities of Fusae Ichikawa and $Raich{\bar{o}}$ Hiratsuka. Hiratsuka, who was devoted to establishing the 'state protection of maternity,' ended up casting away such expectations toward the state after the failure of the petition movement developed by the New Women's Association. On the other hand, Ichikawa, encouraged by the success of women's suffrage movement in the U.S., remained active in the petition movement in the hope of attaining female suffrage. Because of this, Ichikawa was more vulnerable to the requests by the national authorities for the cooperation in war efforts-event though most of her activities were contained within the redressing of everyday life issues. The expectations toward the 'state' was a principal driving force of women's movements in modern Japan, yet at the same time it was also the reason why-as purging of Ichikawa symbolizes-they came to be stigmatized with the promotion of invasive war.