• 제목/요약/키워드: Essential Concepts

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Mobilization of Photosystem II-Light Harvesting Complex II Supercomplexes during High Light Illumination and State Transitions

  • Nath, Krishna;Elizabeth, John;Poudyal, Roshan Sharma;Ko, Su Yeon;Lim, Woon Ki;Lee, Choon-Hwan
    • Rapid Communication in Photoscience
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    • v.2 no.1
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    • pp.18-23
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    • 2013
  • The photosystem II (PSII) light harvesting complex (LHC) consists of a variety of pigment protein complexes which are involved in structural organization and regulation of photosynthetic unit. These LHC proteins encoded by a group of Lhcb genes are essential for the structural integrity of PSII supercomplex, the channeling the excitation energy to the reaction center of PSII and its redistribution to photosystem I by state transitions. Numerous studies with the help of recent technological advancements have enabled a significant progress in our understanding on the structure of PSII-LHCII supercomplexes and their mobilization under various light conditions. Here, we present a mini-review on the latest concepts and models depicting the structure of PSII-LHCII supercomplexes and the role of Lhcb proteins in their supra-molecular organization. Also we will review on the current understandings and remaining problems involved in the mobilization of the supercomplexes during state transitions and during high light illumination for controlling light energy distribution between the two photosystems.

A Study on the Aspects of Spatial Orientation and Intentional System (지향계와 공간정향성의 관계양상 연구)

  • Suh, June-Ho
    • Korean Institute of Interior Design Journal
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    • v.20 no.4
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    • pp.83-91
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    • 2011
  • The purpose of this study is to set a relationship between intentional system and spatial orientation, and with space model in the human world to orient yourself is to present the basic spatial concepts. This is composed of parts of intentional system and spatial orientation on the research. Through the study of intentional system which is based on the orientation with Daniel Dennett's, it suggests the space-model that composed with aspects of intentionality and spatial elements. With space-model and judgement of spatial types, it makes relationship confirm between them. Through this process, following the results of this study were derived. First, intentional stance of space is the key for building knowledge and memories about space, and for identifying external environment images which are experienced in the senses of human. Second, changing the meaning from space to place makes horizons of space broader and creates a new sense of space with put the intentional orientation into the space. Third, this study can make confirm what the aspect of the space-schema-elements for orientation in space, serves as the presentation elements. This study leaps an old-view of the architectural customs about spatial orientation, and creates an opportunity to refine the newer concept of space. This concept of space is a basic essential for 'site-selection' and 'spot-catching' as an intentional system for spatial orientation and to establish a relationship with human beings in the world of his own orientation to the concept of space.

A Study on the Conceptual Characteristics and Design Methods of Anti-Object in Architectural Theory of Kengo Kuma (쿠마켄고의 건축론에서 나타나는 반(反) 오브젝트의 개념적 특성과 디자인 방법에 관한 연구)

  • Park, Chan-Il
    • Korean Institute of Interior Design Journal
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    • v.24 no.2
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    • pp.67-77
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    • 2015
  • This study is to contemplate an ultimate goal and new methodology the architecture and space design community should pursue forward by analyzing concepts in Kengo Kuma's idea of "Anti-object" and examining his design methods and characteristics. To this end, I reviewed space design methods and features in his book of "Anti-Object" and his architectures built around in 2000. The result is as in the followings. (1) Contact is an essential concept of "Anti-object" to connect and integrate divided materials and consciousness with time and space. (2) Elimination is a meaningful way to reverse "cohesiveness" of agglomerated cluster which is a form of object and reconstruct it into the form of passive and acceptive "Anti-object". This idea is realized through overlap of material property and removal of massing. (3) Minimization is a concept of "Anti-object" to set the temporality free from constraints of materials. Three-dimensional transparent faces and lines or patterns of porous materials can be used to remove static and coercive volume. (4) A particle is a "reflector of its environment." It rebuilds one-way or disconnected communication between human and architecture into an interactive one. Kengo Kuma materializes this "particle" by exploring positional relation with physical paths, precise details and measurements.

The Development of Fashion Design, Based on the Symbolism of the Color White

  • Wi, Mi-Kyung;Choy, Hyon-Sook
    • International Journal of Costume and Fashion
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    • v.8 no.1
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    • pp.18-35
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    • 2008
  • As an essential factor of plasticity in fashion, color reflects socio-cultural trends and has possessed different symbolism in its historical development. This study aims to search for an academic approach towards finding out how the concepts and symbolism of the color white were expressed in actual clothing. This will be realized through the investigation of the various meanings this particular color possesses. The secondary purpose of this study is to give shape to the results of above said academic investigation by proposing their integration into actual fashion design. The methodology employed in this study and results are as follows. First, the symbolism of the color white abstracted from the research of literature on this subject was classified into six categories; purity, grace, abstinence, sublimity, decorativeness, and avant-garde. Second, for empirical research, six designs were developed and produced into white dresses. The development of these dress designs was realized by presenting the symbolism of the aforementioned six categories into images, and the formative constructions of these images by applying various design details, expressive techniques, and characteristics of the materials. Through an investigation into the color white, which has been excluded from previous chromatics research as a major color, integration of the symbolism and chromatic image of this color into the actual fashion design process is made possible. The significance of this study is in that it proposes multifarious possibilities in fashion design, and also in extending the horizon of chromatics research in fashion through the realization of the above process.

Image Content Modeling for Meaning-based Retrieval (의미 기반 검색을 위한 이미지 내용 모델링)

  • 나연묵
    • Journal of KIISE:Databases
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    • v.30 no.2
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    • pp.145-156
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    • 2003
  • Most of the content-based image retrieval systems focuses on similarity-based retrieval of natural picture images by utilizing color. shape, and texture features. For the neuroscience image databases, we found that retrieving similar images based on global average features is meaningless to pathological researchers. To realize the practical content-based retrieval on images in neuroscience databases, it is essential to represent internal contents or semantics of images in detail. In this paper, we present how to represent image contents and their related concepts to support more useful retrieval on such images. We also describe the operational semantics to support these advanced retrievals by using object-oriented message path expressions. Our schemes are flexible and extensible, enabling users to incrementally add more semantics on image contents for more enhanced content searching.

What Millennial Workers Want? Turnover or Intention to Stay in Company

  • MAPPAMIRING, Mappamiring;AKOB, Muhammad;PUTRA, Aditya Halim Perdana Kusuma
    • The Journal of Asian Finance, Economics and Business
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    • v.7 no.5
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    • pp.237-248
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    • 2020
  • The purpose of this study is to investigate and reconfirm the research instruments and variables that have been developed by prior study and built new concepts from empirical research results. Besides analyzing the essential role of fundamental, rational, and psychology aspects to increase employee's intention to stay in a company, which is useful for the development of human resource development strategies for millennial workers in the future. A total of 438 non-student male respondents aged 23-36 years, with unmarried status and not working in the SOE sector or as a civil servant, were surveyed with questionnaires. The study was conducted in Makassar, Indonesia. Data collection uses a survey with the second-order model approach and regression with control variables. The findings of this study suggest the existence of an inter-relationship between fundamental, rational and psychological aspects. They are inseparable and have a positive and significant influence. Broadly speaking, the link between fundamental, psychology and rational aspects states that the decision for millennial male workers to stay in the company will depend on whether the company has a good image and reputation, the level of attention the organization pays to career development, is competent, and applies regulations and rules with flexibility.

Word Network Analysis based on Mutual Information for Ontology of Korean Rural Planning (한국농촌계획 온톨로지 구축을 위한 상호정보 기반 단어연결망 분석)

  • Lee, Jemyung
    • Journal of Korean Society of Rural Planning
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    • v.23 no.3
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    • pp.37-51
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    • 2017
  • There has been a growing concern on ontology especially in recent knowledge-based industry and defining a field-customized semantic word network is essential for building it. In this paper, a word network for ontology is established with 785 publications of Korean Society of Rural Planning(KSRP), from 1995 to 2017. Semantic relationships between words in the publications were quantitatively measured with the 'normalized pointwise mutual information' based on the information theory. Appearance and co-appearance frequencies of nouns and adjectives in phrases are analyzed based on the assumption that a 'noun phrase' represents a single 'concept'. The word network of KSRP was compared with that of $WordNet^{TM}$, a world-wide thesaurus network, for the verification. It is proved that the KSRP's word network, established in this paper, provides words' semantic relationships based on the common concepts of Korean rural planning research field. With the results, it is expecting that the established word network can present more opportunity for preparation of the fourth industrial revolution to the field of the Korean rural planning.

A Pilot Study on Developing a Patient Safety Curriculum Using the Consensus Workshop Method (환자안전 교육과정 개발 사례 연구)

  • Lee, Seung-Hee;Shin, Jwa-Seop;Huh, Nam-Hee;Yoon, Hyun Bae
    • Korean Medical Education Review
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    • v.15 no.3
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    • pp.151-158
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    • 2013
  • Patient safety is achieved through systematic improvement based on the knowledge and willingness of medical professionals. A systematic longitudinal curriculum for patient safety is essential to prepare medical students and professionals. The purpose of this article is to introduce our experience with a 'workshop for developing a patient safety curriculum' and to compare the results with previous studies. The workshop comprising 15 medical professors and patient safety experts met for 2 days. The Consensus Workshop method was applied, collecting opinions from all of the members and reaching consensus through the following stages: context, brainstorm, cluster, name, and resolve. The patient safety curriculum was developed by this method, covering patient safety topics and issues, and teaching and assessment methods. A total of 7 topics were extracted, 'activities for patient safety, concepts of patient safety, leadership and teamwork, error disclosure, self-management, patient education, policies.' Issues, teaching methods, and assessment methods were developed for each topic. The patient safety curriculum developed from the workshop was similar to previous curricula developed by other institutions and medical schools. The Consensus Workshop method proved to be an effective approach to developing a patient safety curriculum.

Cybersecurity Threats and Responses of Safety Systems in NPPs (원전 안전계통의 사이버보안 위협 및 대응)

  • Jung, Sungmin
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.16 no.1
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    • pp.99-109
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    • 2020
  • In the past, conservative concepts have been applied in terms of the characteristic of nuclear power plants(NPPs), resulting in analog-based equipment and closed networks. However, as digital technology has recently been applied to the design, digital-based facilities and communication networks have been used in nuclear power plants, increasing the risk of cybersecurity than using analog-based facilities. Nuclear power plant facilities are divided into a safety system and a non-safety system. It is essential to identify the difference and cope with cybersecurity threats to the safety system according to its characteristics. In this paper, we examine the cybersecurity regulatory guidelines for safety systems in nuclear power plant facilities. Also, we analyze cybersecurity threats to a programmable logic controller of the safety system and suggest cybersecurity requirements be applied to it to respond to the threats. By implementing security functions suitable for the programmable logic controller according to the suggested cybersecurity requirements, regulatory guidelines can be satisfied, and security functions can be extended according to other system requirements. Also, it can effectively cope with cybersecurity attacks that may occur during the operation of nuclear power plants.

Finding Meaning in Life Threatening Illness

  • Kim, Mira
    • Journal of Hospice and Palliative Care
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    • v.23 no.2
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    • pp.39-43
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    • 2020
  • This paper aims to explore how to help terminally ill patients and their families find meaning in their suffering from the logotherapeutic perspective, which is the essence of palliative care. For this purpose, this paper examines the main concepts and principles of logotherapy, and specific approaches based on the logotherapeutic perspective to help terminally ill patients and their families find meaning in life are presented. Emphasizing the will to meaning as the primary motive to explain human behaviors and based on its unique perspective of the human being, which is called the dimensional ontology, logotherapy considers the human being to consist of the body, the mind, and the spirit. The dimensional ontology implies that the human being "has" the body and the mind, but the human being "is" the spirit itself. Therefore, even though a human being can be sick physically or psychologically, Accordingly, it is essential to help these patients realize that they are not their illnesses, but just have them, and to rise above themselves to reach out toward something meaningful or someone to love; despite their suffering, they can still do something meaningful, even in a small way. Above all, the most important thing for these patients is to acknowledge that they have already lived a meaningful life and to believe that their meaningful work has been safely preserved in the past and nothing can take it from them, for as spiritual beings, their lives have been meaningful unconditionally.