• Title/Summary/Keyword: Nature Environment

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Development and Evaluation of a STEAM Curriculum Utilizing Arduino (아두이노를 활용한 STEAM 커리큘럼 설계, 적용 및 효과 분석)

  • Shim, KyuHeon;Lee, Sangwook;Suh, Taeweon
    • The Journal of Korean Association of Computer Education
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    • v.17 no.4
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    • pp.23-32
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    • 2014
  • The nature of complex modern society inevitably creates intricate problems that can be solved by the computational and logical reasoning. The programming education in Informatics can effectively raise the ability of computational thinking. The paper proposes and evaluates a STEAM curriculum that can draw the interest and attention of students. The curriculum educates the multi-disciplinary knowledge from science, music and informatics, and it was designed to have group discussions with self-directed study. The experiments were performed with $4^{th}{\sim}6^{th}$ grade gifted students in Informatics from elementary schools. The Arduino was used as the experiment environment. The experiment results reveal that the interests in Informatics and programming have been escalated after the STEAM class; 75% of students expressed the surge of interest in computers and 93% of students responded positively to the Arduino-based class. The effectiveness of the experiment outcomes was validated with t-test.

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Experience in Health Management of Middle-aged Working Women having Children (취업주부의 건강관리 경험)

  • Kim Kyoung-Seon
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.4 no.2
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    • pp.217-228
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    • 1997
  • According to industralization the percentage of working women with children is on the continuous increase. There has been a growing concern over important health problems of middle-aged women, especially with working women. But we didn't know how to care of themselves yet even if it was importment to fint out that. So this reseach was an attempt to identify the nature of experience of their health management so that it is to be contributed to be knowledge development of women' health management strategy. The phenomenological approach in qualitative studies was used to serve this purpose. Subjects were 10 middle-aged working women having children in well-being state. The result of this study was as follows : 'Diet pattern' was to unbalanced and irregular but they tried to correct balanced and harmony dietary life. 'Exercise' was very simple and irregular. They have closed-minded of kinds of exercise. 'Controlling the environment and their minds' was to obtain emotional stability and be free from stress. They put emphasis on refraining from being overtiring and watching their condition carefully. They always tried to keep the peaceful mind. 'Reducing fatigue' was to be bathing, hot streamed-bath, finger pressure therapy, massage, singing, communication with others and maintenance of personal relationships. 'Identification of self-esteem' was very key point to maintain their health. Working regulary gave them to please and value of the life. 'Work oriented life pattern' was to be harm their health state so that it need to be available clinics to check up their health state after work. The rest of this study showed that it need to be social support for working women to work with comfort. Further study regarding working women engaging in the lower level is nesessary.

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An Indoor Propagation Modeling that can Analyze a Fading Characteristic (페이딩 분석이 가능한 실내 전파 모델링)

  • Seok, Woo-Chan;Kim, Jin-Woong;Yoon, Young-Joong;Seok, Jae-Ho;Lim, Jae-Woo
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.27 no.1B
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    • pp.114-124
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    • 2002
  • In this paper, we proposed the image-based 3D ray tracing indoor propagation model using a patch scattering model for fading analysis of indoor propagation environments. An image-based 3D ray tracing technique is mainly used, which allows the rapid generation of the complex channel impulse response for any given location and polarization of transmitter and receiver. Due to the site specific nature of indoor environment, we took into account the location and the electrical properties of individual walls and objects such as windows, doors and plaster board in our propagation model. Besides, the 3D radiation beam-patterns and polarizations of arbitrary antennas were considered, and using patch scattering model we can consider the change of the polarization due to the scattering from the various indoor objects, like desks, chairs and etc. the are almost impossible to be modeled with the basic image-based ray tracing method. The model will predict the impulse response, the rms delay spread, the fading characteristics of the channel and performances of the polarization diversity schemes.

Strategies for Conservation and Restoration of Freshwater Fish Species in Korea (한국 담수어류의 보존 및 복원 전략)

  • Kang, Eon-Jong;Bang, In-Chul;Yang, Hyun
    • Korean Journal of Ichthyology
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    • v.21 no.sup1
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    • pp.29-37
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    • 2009
  • The tiny fragment of freshwater body is providing home for huge biodiversity and resources for the existence of human. The competing demand for freshwater have been increased rapidly and it caused the declination of biodiversity in recent decades. Unlike the natural process of extinction in gradual progress, the current species extinction is accelerated by human activity. As a result many fish species are already extinct or alive only in captivity in the world and about fifty eight animal species are in endangered in Korea including eighteen freshwater species. Conservation of biodiversity is the process by which the prevention of loss or damage is attained, and is often associated with management of the natural environment. The practical action is classified into in-situ, or ex-situ depending on the location of the conservation effort. Recovery means the process by which the status of endangerment is improved to persist in the wild by re-introduction of species from ex-situ conservation population into nature or translocation of some population. However there are a lot of restrictions to complete it and successful results are known very rare in case. In this article the authors explore some strategies for conservation and restoration of freshwater fish species conducted in Korea for few years. The major causes are discussed in relation with the decline of freshwater fish diversity during few decades and some strategies are evaluated to advance the process of conservation. A study on the Korean bullhead, Pseudobagrus brevicorpus, is introduced as a case for ex-situ conservation and restoration in freshwater ecosystem.

Multi-FNN Identification Based on HCM Clustering and Evolutionary Fuzzy Granulation

  • Park, Ho-Sung;Oh, Sung-Kwun
    • International Journal of Control, Automation, and Systems
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    • v.1 no.2
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    • pp.194-202
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    • 2003
  • In this paper, we introduce a category of Multi-FNN (Fuzzy-Neural Networks) models, analyze the underlying architectures and propose a comprehensive identification framework. The proposed Multi-FNNs dwell on a concept of fuzzy rule-based FNNs based on HCM clustering and evolutionary fuzzy granulation, and exploit linear inference being treated as a generic inference mechanism. By this nature, this FNN model is geared toward capturing relationships between information granules known as fuzzy sets. The form of the information granules themselves (in particular their distribution and a type of membership function) becomes an important design feature of the FNN model contributing to its structural as well as parametric optimization. The identification environment uses clustering techniques (Hard C - Means, HCM) and exploits genetic optimization as a vehicle of global optimization. The global optimization is augmented by more refined gradient-based learning mechanisms such as standard back-propagation. The HCM algorithm, whose role is to carry out preprocessing of the process data for system modeling, is utilized to determine the structure of Multi-FNNs. The detailed parameters of the Multi-FNN (such as apexes of membership functions, learning rates and momentum coefficients) are adjusted using genetic algorithms. An aggregate performance index with a weighting factor is proposed in order to achieve a sound balance between approximation and generalization (predictive) abilities of the model. To evaluate the performance of the proposed model, two numeric data sets are experimented with. One is the numerical data coming from a description of a certain nonlinear function and the other is NOx emission process data from a gas turbine power plant.

Using a Dynamic Approach to Analyze the Relationship between Forest Household Income and Income Inequality (동태적 접근을 통한 임가의 소득과 소득불평등 간의 관계 분석)

  • Kim, Eui-Gyeong;Kim, Dae-Hyun;Kim, Dong-Hyun
    • Journal of Korean Society of Forest Science
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    • v.109 no.1
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    • pp.99-108
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    • 2020
  • Although the relationship between income and income inequality has previously been discussed, the present study applies a dynamic approach to analyze the specific relationship between forest household income and income inequality. For this analysis, a unit root test and a cointegration test were conducted to characterize the nature of income time-series data. After converting unstable time-series data into stable time-series data, a VAR model was estimated. Based on this model, an impulse-response was generated and variance-decomposition analysis was performed. These analyses showed that the effect of forest household income was relatively larger than that of the Gini coefficient, and that the impact of forest household income not only caused income to increase but also caused the Gini coefficient to decrease. In addition, the impact of the Gini coefficient had an impact on reducing forest household income and further increasing income inequality. We conclude that, with the aim of alleviating the inequality of forest household income, an income growth policy would be more effective than an income distribution policy.

The Relationship between Psychotherapy and Neurobiological Findings (정신치료와 신경생물학적 연구결과의 관계)

  • Oh, Hyun-Young;Park, Yong-Chon
    • Korean Journal of Biological Psychiatry
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    • v.19 no.1
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    • pp.1-8
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    • 2012
  • The mechanism of psychotherapy is explained by the recent developments in neuroscience and neuroimaging. The purpose of this study is to understand the nature of psychotherapy and to discuss the future of psychotherapy improvement with the help of advances of the neurobiological findings in psychotherapy. For this study, we investigated a wide range of materials. We searched for various researches on psychotherapy, brain, and neurobiology. In addition to the conventional psychodynamic psychotherapy, we investigated research findings on cognitive behavioral therapy, interpersonal psychotherapy and eye movement desensitization and reprocessing (EMDR). Moreover, based on the actual experiences of treating patients, we speculated the neurobiological mechanisms of the process and results of psychotherapy. With the development of neuroscience, we are now able to understand the personal consciousness, unconsciousness and developmental process. Also subdividing the disease is made possible. Personalized treatment has become available, and we are able to predict the prognosis of patients. Our memories are composed by implicit memory and explicit memory. By psychotherapy, we can consciously remember explicit memory, and it becomes easier to explore implicit memory through free association. Through psychotherapy, we will also be able to learn the effect of acquired environment and experience. Psychotherapy is able to correct human behaviors by modifying the memories. Through the regulation of emotions, it becomes possible to modify the memories and correct the behaviors. In this process, doctor-patient relationship is the main factor which cause positive treatment effects. Furthermore imagination therapy or unconscious, non-verbal stimuli could bring about positive treatment effects. Now psychotherapy could be explained and studied by neuroscientific researches. In this sense, we could provide the direction of future advances in neuroscience by the neurobiological understanding of psychotherapy.

A Study on the Characteristics of Male Beauty Style according to the Anima Archetype of Jungian Theory - Focusing on Men's Cosmetic Advertisements - (융(Jung)의 아니마(Anima) 원형에 따른 남성 뷰티스타일 연구 - 남성 화장품 광고를 중심으로 -)

  • Chung, Hye-Kyung;Kwak, Tai-Gi
    • Journal of the Korean Society of Costume
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    • v.61 no.3
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    • pp.36-50
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    • 2011
  • The traditional masculinity has been gradually diversified towards the 21th century due to a new social environment. Men embrace his feminine side with heightened aesthetic sense using cosmetic products for better skin, hair, and nails. This diversification of male image and his beauty style proves the addition of feminity to masculinity. C. G. Jung felt that we are all really bisexual in nature. The anima is the female aspect present in the collective unconscious of men and it is the archetype through which we communicate with the collective unconscious generally, and it is important to get into touch with it for self-realization. This study analyzes subconscious desire based on the anima archetype in the collective unconscious of men through the diversity of the gender identity shown in men's cosmetic advertisements, and therefore it aim to help developing a marketing strategy of male beauty industry in the future. For this purpose, it conducted an empirical analysis of male beauty style in cosmetic advertisements through the Jungian anima theory. The conclusion of this study is as follows: First, gender identity represented in cosmetic advertisements was typified as Retrosexual, Ubersexual, Metrosexual, Cross sexual. Second, the anima archetype stimulates feminity in male beauty style. Cross sexual type has the highest feminine tendency. Third, range of utilization of cosmetic products is articulated with the diverse gender identity. Cross sexual type is most similar to the female beauty style. This feminization of male beauty style is the external expression of collective unconscious and affords human being to reach self-realization.

Correlation between Taste and Fashion in Contemporary Consumer Society and Popular Culture (현대소비사회에서의 취향과 유행의 상관성과 대중문화의 역할)

  • Park, Ki-Ung;Jo, Jung-Yeon
    • The Journal of the Korea Contents Association
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    • v.10 no.2
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    • pp.165-175
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    • 2010
  • This paper claims the argument that the taste of own is not the intrinsic value but is determined by the environment or habitus, based on Bourdieu's theory. This concept of taste leads up to a natural stream of imitation and alignment. We conclude that the stream is the fashion which be justified by the major agreement. But the nature of fashion exists in hegemony and determines a sense of kinship or a point of difference. In this regard, popular cultures as a window circulated fashion have a negative consequence that can be method of discriminating the minority and justifying vested rights. Accordingly, we have to become wary of the strategy of control using fashion and popular cultures, and need to recognize the prior paradigm about fashion. In the process, we can expect that fandom or counter cultures based on digital high technology constitute subjectivity and dynamics of popular by interaction between the objects.

Research on the Analog Emotional Communication Appeared in Digital Media Design (디지털미디어를 기반으로 하는 디자인에서의 아날로그감성 커뮤니케이션)

  • Son, Hyun-Ji
    • The Journal of the Korea Contents Association
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    • v.10 no.11
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    • pp.146-153
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    • 2010
  • With the advent of new media richness of technology in the digital age has transformed our lives. The development of technology, the more our lives more convenient, new, future-oriented, while expectations for the digital age, people are longing for warm, human sensibility became. Of modernism and post-modernism appeared to reflect the proliferation of digital media in culture, wandering through the complex has been diversifying. In the digital age stabilizing psychological or mental needs of people who want to begin to emerge as the disfunctional aspects of the digital age has been suggested for the problem. To respond to human emotion on the emotional reaction of users to consider the analog emotional design began to emerge. The analog to digital media to express emotions practical approach to the problem should be attempted. Analog in a digital environment, emotional nature of the digital technology and communication, and symbolic and emotional aspects of people as announced to blend the new extension, change, and an analog emotional design for the evolution and development of new possibilities to investigate the castle.