• Title/Summary/Keyword: Integrative property

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A Short Report on the Markov Property of DNA Sequences on 200-bp Genomic Units of Roadmap Genomics ChromHMM Annotations: A Computational Perspective

  • Park, Hyun-Seok
    • Genomics & Informatics
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    • v.16 no.4
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    • pp.27.1-27.6
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    • 2018
  • The non-coding DNA in eukaryotic genomes encodes a language that programs chromatin accessibility, transcription factor binding, and various other activities. The objective of this study was to determine the effect of the primary DNA sequence on the epigenomic landscape across a 200-base pair of genomic units by integrating 127 publicly available ChromHMM BED files from the Roadmap Genomics project. Nucleotide frequency profiles of 127 chromatin annotations stratified by chromatin variability were analyzed and integrative hidden Markov models were built to detect Markov properties of chromatin regions. Our aim was to identify the relationship between DNA sequence units and their chromatin variability based on integrated ChromHMM datasets of different cell and tissue types.

Hierarchical Subdivision of Light Distribution Model for Realistic Shadow Generation in Augmented Reality (증강현실에서 사실적인 그림자 생성을 위한 조명 분포 모델의 계층적 분할)

  • Kim, Iksu;Eem, Changkyoung;Hong, Hyunki
    • Journal of Broadcast Engineering
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    • v.21 no.1
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    • pp.24-35
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    • 2016
  • By estimating environment light distribution, we can generate realistic shadow images in AR(augmented reality). When we estimate light distribution without sensing equipment, environment light model, geometry of virtual object, and surface reflection property are needed. Previous study using 3D marker builds surrounding light environment with a geodesic dome model and analyzes shadow images. Because this method employs candidate shadow maps in initial scene setup, however, it is difficult to estimate precise light information. This paper presents a novel light estimation method based on hierarchical light distribution model subdivision. By using an overlapping area ratio of the segmented shadow and candidate shadow map, we can make hierarchical subdivision of light geodesic dome.

Analysis and Identification of Students' Threshold Concepts in High School Chemistry (학습경험을 바탕으로 학생들이 제시하는 고등학교 화학교과 내의 어려운 개념과 문지방개념 분석연구)

  • Park, Eun Jung
    • Journal of the Korean Chemical Society
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    • v.58 no.1
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    • pp.126-129
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    • 2014
  • Concerning the difficulty of learning science and reduced interest in science, the authors of this study searched for potential threshold concepts which are portals or gateways in the field of science (particularly chemistry). The nature of these concepts and how to overcome their troublesomeness were further questioned. For this study, 239 high school students completed chemistry II provided information about what difficult concepts and potential threshold concepts in high school chemistry are and how they affect learning chemistry. In particular, the mastery experience of the threshold concepts was explored in detail. Two, "mole and atomic structure" were selected as threshold concepts in chemistry. Not only as important but also as threshold, this study emphasized the importance of the two concepts in terms of features characterizing them as threshold concepts. In particular, the features objectify subjective experiences of students and provide information describing the scientific meaning and distinctive nature of threshold concepts in science. Along with the data from teachers, this study shows the integrative feature as key criteria for students to make meaningful understanding of the two threshold concepts.

Brief review of cancer treatment focused on JIJU(積聚) (적취(積聚)를 위주로 한 종양(腫瘍)의 치법(治法)에 관한 소고(小考))

  • Park, Jae-Hyun;Moon, Goo
    • Journal of Korean Traditional Oncology
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    • v.13 no.1
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    • pp.1-11
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    • 2008
  • Objectives: To grasp the traditional stream of cancer treatment inherited from the previous doctors. Methods: The author's research has been performed cancer treatment based on JIJU(積聚) taking the original text as a reference. Results & Conclusion: The general three outlines and five detailed rules of cancer treatment have been obtained as follows. The first outline of cancer treatment is that reinforced vital function makes cancer reduce naturally. the second is that Harmless cancer can coexist in human beings and aging with them. and the third is that Elimination and reinforcing therapies should be executed in appropriate era and those therapies should utilize appropriate methods. The first detailed rule of cancer treatment is when using reinforcing therapy, it must applicate mildly and when using elimination therapy, it must applicate calmly. The second detailed rule is that the methods of cancer treatment are different from each cancer stage. The concentration should be made on reinforcing therapy at early stage while reinforcing and elimination therapies must be conducted together at middle stage. At terminal stage reinforcing therapy is the sole method to be taken. The third detailed rule is that the basis property of cancer drug is warm nature and extremely biased property should be avoided and when complication arises (eg. inflamatory disease, cancer fever, etc), cold or cool nature can be applied. The fourth detailed rule is that Cancer drug must have the effect eliminating the blood stasis, phlegm and excessive fluid, all together. The fifth detailed rule is that Physicians have to control patient's stress or stress related symptom and teach patients about right way of taking care of themselves and patients should take hygienic rules with their free will by themselves (eg diet, exercise, stress, etc)

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The Research of New Multimedia Design Development on Internet - Focus on the Type - (인터넷에서의 뉴멀티미디어 디자인 개발에 관한 연구 - 서체의 활용을 중심으로 -)

  • 류성현;신계옥;이은주;이현주
    • Archives of design research
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    • v.11 no.3
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    • pp.47-55
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    • 1998
  • Homepage design on the Web is incredibly growing fast as the integrative information method than any other media. At the beginning the homepage was designed by text mostly, however, it has been changed to use the multimedia. Design in the Web is changed by the development of computer technology. Rnal destination of Web is an user platform that consists of pixel of monitor screen. Monitor requires different approach from printing material because of the limited of range of presentation and the property of light. This paper has studied to find the possibilities of expression of type which can be the basic structure for HTML. By the case study of homepage, it has analyzed the kind of types, presentation method, the number of frequency, and variation of design.

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Mucosubstance Histochemistry of the Epidermis in Yellowtail, Striped Beakperch, Brown Spotted Grouper, Sea Chub, and Multicolorfin Rainbowfish

  • Jeong, Gil-Nam;Jo, Un-Bock
    • Animal cells and systems
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    • v.11 no.2
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    • pp.183-189
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    • 2007
  • To investigate the properties of mucosubstances of the epidermis in various teleostean species, conventional histochemical stainings were used on the skin in five species of order Perciformes, i. e., yellowtail, Seriota quinqueradiat, striped beakperch, Oplegnathus fasciatus, brown spotted grouper, Epinephelus chlorostigma, sea chub, Ditrema temmincki and multicolorfin rainbowfish, Halichoeres poecilopterus. The following methods were used: periodic acid Schiff (PAS), alcian blue (AB) pH at 2.5, AB pH at 1.0, AB pH at 2.5-PAS, AB pH at 1.0-PAS, aldehyde fuchsin (AF) pH at 1.7-AB pH at 2.5 and high iron diamine (HID)-AB pH at 2.5. The epidermis of all five species consisted of three layers: superficial, middle, and basal layer. The superficial layer was comprised of rather flattened cells. In particular, the outermost layer of striped beakperch and middle layer of sea chub consisted of mucus-secreting cells. Mucous cells, the unicellular glands, were found in epidermis but varied in number in different body regions and species. Although there was a slight difference in the amount in various species and body regions, the secretory contents of the mucous cells in the five teleostean species contained acidic mucopolysaccharides. In yellowtail, striped beakperch, and multicolorfin rainbowfish, the property of mucosubstances was identified as sialomucin, while it was sulphomucin in brown spotted grouper and sea chub.

Understanding Cold and Hot Pattern Classification Based on Systems Biology (시스템 생리학에 기반한 한열 변증의 이해)

  • Lee, Soojin
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.30 no.6
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    • pp.376-384
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    • 2016
  • Systems biology is an emerging field aiming at a systems level understanding of living organisms and focusing on the characteristics of the whole network of them. The emergence of systems biology is partly because of the availability of huge amounts of data on organisms and the extensive support of computational technologies as the tools for understanding complex biological systems. The scientific understanding of Korean medicine has been obstructed because of the lack of proper methods examining the complex nature and the unique property of it. However, systems biology could give a chance understanding Korean medicine objectively and scientifically. Pattern classification is a unique tool of Korean medicine to diagnose and treat patients and systems biology would give a useful tool to interpret pattern classification. Various omics technologies has been used to explain the relations between pattern classification and biological factors and then many characteristics of pattern classification in various diseases have been discovered. Therefore, pattern classification could be a bridge to understand the features and differences of western medicine and Korean medicine and it could be a basis to develop pattern-based personalized medicine.

Study on optimal design method for estimation of the mechanical properties of abandoned mine ground (폐광산 지반의 역학적 특성 추정을 위한 최적설계 기법에 관한 연구)

  • Son, Min;Moon, HyunKoo;Jung, HyukSang;Kim, YoungSu;Park, SungHyun
    • Journal of Korean Tunnelling and Underground Space Association
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    • v.22 no.1
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    • pp.1-21
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    • 2020
  • The domestic abandoned mines are generating subsidence and it is difficult to predict this subsidence and evaluate the risk. The study of the subsidence risk evaluation using the existing numerical analysis only applies the integrative property to the geological structure and ground condition, and analyzes the goaf peripheral plastic domain. Also, there is a realistic limit that only restricted materials can be apprehended in securing the input information, which leads to the low reliability of the numerical analysis result. In this study, 2-dimensional modeling was performed by applying the field geological structure and ground information targeting abandoned mine where the subsidence occurred. Also, the analysis model was revised by repeating the numerical analysis for the difference between the real subsidence ground information and the analysis result to be minimized by modifying the ground property. This revision was automated by applying the optimization technique and the gradational optimal design method dividing multiple ground properties was developed.

The Expressive Characteristics of Morphing in Fashion Design (패션디자인에 나타난 몰핑의 표현특성)

  • Choi, Jung Hwa;Choi, Yoo Jin
    • Journal of the Korean Home Economics Association
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    • v.50 no.7
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    • pp.67-79
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    • 2012
  • This study analyzed the characteristics of morphing in fashion design through the documentaries on morphing and fashion. The characteristics of morphing in fine art, media, and design area were categorized as reversible metamorphosis, sequential dissolve and blurring of interpolation boundaries. The results were as follow in fashion design. Reversible metamorphosis showed an automatic silhouette transformation by remote control, the metamorphosis of folding method by wearer's own movements and the automatic silhouette transformation by the air pressurizing method. It represented the thoughts of omnipotence as in the feeling of the magical world, the human desire for control in life, the rationalization of magical thinking and imaginative power, the creation of a new dress space and the extension of dress function. Sequential dissolve showed juxtaposition in the same area by the time order, juxtaposition in virtual space through the computer graphics, the series of fashion photography by steel cut of the dress making process and the blending of digital film and fashion design. It represented the approach for the storytelling of fashion show, implication of creative fashion design process and the creation of organic forms and the feeling of fantasy through artificial technology. The blurring of interpolation boundary showed an overlay of different fabrics with transparent boundaries, an overlay of different patterns with transparent boundaries and the blending of fabrics through the visual mixing of color. It represented the obfuscation of the object, the connotation of the space order, the connotation of the extensive and various meanings and the integrative property of objects.

Protective effect of Cirsium japonicum var. maackii against oxidative stress in C6 glial cells

  • Lee, Ah Young;Kim, Min Jeong;Lee, Sanghyun;Shim, Jae Suk;Cho, Eun Ju
    • Korean Journal of Agricultural Science
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    • v.45 no.3
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    • pp.509-519
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    • 2018
  • This study was investigated the anti-oxidant property and neuro-protective effect of Cirsium japonicum var. maackii (CJM) against oxidative stress in hydrogen peroxide ($H_2O_2$)-induced C6 glial cells. We measured the 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical, hydroxyl radical (${\cdot}OH$), and superoxide ($O_2{^-}$) radical scavenging activities of an ethanol extract and four fractions [n-Butanol, ethyl acetate (EtOAc), $CHCl_3$, and n-Hexane] from CJM. The results of this study show that the extract and all fractions from CJM had a dose-dependent DPPH radical scavenging activity. In particular, the EtOAc fraction exhibited the strongest scavenging effect with 88.23% at a concentration of $500{\mu}g/mL$. In addition, the EtOAc fraction from CJM also effectively scavenged ${\cdot}OH$ radicals and $O_2{^-}$ radicals, compared to other extract and fractions. In C6 glial cells, $H_2O_2$ markedly decreased the cell viability as well as increased lactate dehydrogenase (LDH) release and reactive oxygen species (ROS) production. However, the EtOAc fraction of CJM attenuated the cellular damage from the oxidative stress by elevating the cell viability and inhibiting the LDH release and ROS over-production compared with the $H_2O_2$-treated control group. Our findings indicate that the EtOAc fraction from CJM has antioxidant effect and neuro-protective effect against oxidative stress, suggesting that it can be used as a natural antioxidant and therapeutic agent for the prevention of neurodegenerative disorders.