<?xml version="1.0" encoding="UTF-8"?>
<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns="http://purl.org/rss/1.0/" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <channel rdf:about="https://pubs.kist.re.kr/handle/123456789/75403">
    <title>DSpace Collection:</title>
    <link>https://pubs.kist.re.kr/handle/123456789/75403</link>
    <description />
    <items>
      <rdf:Seq>
        <rdf:li rdf:resource="https://pubs.kist.re.kr/handle/201004/154554" />
        <rdf:li rdf:resource="https://pubs.kist.re.kr/handle/201004/154392" />
        <rdf:li rdf:resource="https://pubs.kist.re.kr/handle/201004/153946" />
        <rdf:li rdf:resource="https://pubs.kist.re.kr/handle/201004/153927" />
      </rdf:Seq>
    </items>
    <dc:date>2026-04-15T18:22:24Z</dc:date>
  </channel>
  <item rdf:about="https://pubs.kist.re.kr/handle/201004/154554">
    <title>VR 기반 시각적 온도 자극이 만성통증완화에 미치는 영향</title>
    <link>https://pubs.kist.re.kr/handle/201004/154554</link>
    <description>Title: VR 기반 시각적 온도 자극이 만성통증완화에 미치는 영향
Authors: 유은지; 한성민; 문혁준
Abstract: 만성통증은 원인이 뚜렷하지 않아 많은 경우 진통성 약물을 처방하는 것으로 진료가 이루어지고 있다. 하지만 약물 장기 복용으로 인한 부작용, 여성의 임신 수유, 환자의 기존 보유 질환 등에 의해 진통성 약물 치료가 제한되는 경우가 많다. 그 대안으로 온도 기반 치료가 활용되기도 하며 여러 연구에서 그 통증 완화 효과가 입증되었다. 본 연구는 가상현실(VR) 기반 시각적 온도 자극이 어떻게 환자의 주관적 온도 경험과 실제 피부 온도에 영향을 미치는 지 연구하고, 그 변화가 만성통증에 미치는 영향을 분석하는 것을 목표로 한다. 궁극적으로 실제 온도 기반 치료와 접목하여 그 통증 완화 효과를 극대화할 수 있는 VR 기반 만성 통증 완화 기술을 개발하고자 한다. 본 연구에서는 고몰입VR 기반 시각적 온도 자극을 위해 사용자의 신체 동작을 모사하는 전신 아바타(full-bodyavatar)에 신체 소유감 착각을 유도하고 아바타의 신체 부위에 시각적 온도 자극을 가한다. 이때 사용자의 주관적 온도인식과 통증인식, 실제 체온에 어떤 변화를 가져오는지확인한다. 만성통증의 다양한 부위를 고려하여 가상 아바타의 허리, 어깨 등에 시각적 온도 자극을 적용할 수 있도록 체험 시나리오를 설계했으며, 온/냉 자극에 각각 대응하는 핫팩과 아이스팩의 3D 모델을 아바타에 부착하여 해당 신체 부위의 색상을 변화시키고, 온도 자극의 효과를 시각적으로 표현하도록 구현하였다. 본 시스템을 체험하는 사용자들의 몰입도가 높을수록 시각적 온도 자극이 주관적으로 인지되는 온도와 일치하는 방향으로 더 큰 영향을 미치는 반면, 실제 피부온도는 신체의 항상성으로 인해 반대 방향
으로 변화할 것으로 예상된다. 향후 시각적 온도 자극이 사용자의 온도 체감, 실제 피부온도 변화 뿐만 아니라 외부 통증 자극에 대한 통증 역치 변화에 미치는 영향을 확인하고, 기존 온열 치료의 효과를 극대화할 수 있는 조건 역시 탐색하여, 만성 통증 완화를 위한 디지털치료 가이드라인을 제시하고자 한다.</description>
    <dc:date>2024-08-31T00:00:00Z</dc:date>
  </item>
  <item rdf:about="https://pubs.kist.re.kr/handle/201004/154392">
    <title>An in Vitro Microfluidic Platform Mimicking 3D Unidirectional Neural Circuits-based 3D Hydrogel Patterning for Brain Pathology</title>
    <link>https://pubs.kist.re.kr/handle/201004/154392</link>
    <description>Title: An in Vitro Microfluidic Platform Mimicking 3D Unidirectional Neural Circuits-based 3D Hydrogel Patterning for Brain Pathology
Authors: Hwang, Kyeong Seob; Kang, Minjin; Song, Jiyoung; Choi, Nakwon; Kim, jongbaeg; Bang, Seokyoung; Kim, Hong Nam
Abstract: Formation  of  unidirectional  connection  has  limitations  such  as  addition  process,  and  growth  of  neurites  simultaneously.  So,  it  is  necessary  for  an  in  vitro  3D  unidirectional  connectivity  model  that  can  simply mimic  unidirectional  neural  circuits  in  brain.  We  developed  a  3D  in  vitro  unidirectional  neural  connection  using  a  5-channel  microfluidic  chip  with  patterning  Matrigel.  The  microfluidic  chip  enables  selective  Matrigel patterning, unidirectional connection, and co-culture system by utilizing the micropillar structures. We  confirmed  separation  between  neurites  and  somas  by  Matrigel  patterning.  We  achieved  the  separation  after  seeding  cell-laden  Matrigel  in  to  channel  1  and  4.  In  addition,  we  optimized  conditions  for  neuronal  culture  in  respective  channel,  and  coculture  of  two  neuron  groups.  We  also  formed  a  unidirectional  neural  connection  by  different  times  between  the  axon  from  channel  2  to  3  and  the  dendrite  from  channel  4  to  1.  One  of  important  neuronal  characteristics  is  the  synapse,  we  confirmed  the  presynaptic  neurons  through synapsin  1  of  immuno-fluorescence,  and  the  synapses  were  mainly  formed  in  channel  3.  My  approaches  expected  that  it  would  be  possible  to  identify  the  cause  of  mental  disorders  and  develop  fundamental  treatments related to meso-cortical circuits in dopaminergic pathway.</description>
    <dc:date>2024-11-08T00:00:00Z</dc:date>
  </item>
  <item rdf:about="https://pubs.kist.re.kr/handle/201004/153946">
    <title>Cybersecurity Requirements for Critical Infrastructures</title>
    <link>https://pubs.kist.re.kr/handle/201004/153946</link>
    <description>Title: Cybersecurity Requirements for Critical Infrastructures
Authors: Han, ChoongHee; Euom, Ieckchae; Park, SoonTai; Park, Sang-Hun; Han, ChangHee
Abstract: A cyber-intrusion incident on critical infrastructure has a very serious national and social impact, which will result in paralysis and confusion of national functions. In order to strengthen cyber safety and prevent cyber-intrusion accidents on critical infrastructure, systematic information protection risks in the direction of strengthening the level of blockade by inflow path of cyber threats and strengthening the capability level of security equipment to appropriately respond to incoming cyber threats management is absolutely necessary. To strengthen the cyber safety of critical infrastructure, first, it is necessary to establish a new BDLA (Blockade and Defense Level Analysis)-based information protection risk assessment standard. Second, it should be mandatory to restrict access of overseas IPs to web-based information systems operated by critical infrastructure. Third, it should be mandatory to strengthen the level of information protection of private participants who access the information system of critical infrastructure. Fourth, cyber threat response efficiency should be improved by standardizing the operation sequence of security equipment in critical infrastructure.</description>
    <dc:date>2024-12-12T00:00:00Z</dc:date>
  </item>
  <item rdf:about="https://pubs.kist.re.kr/handle/201004/153927">
    <title>The osteogenic property of Ixeridium dentatum (Thunb.) Tzvelev ethanol extract suppresses postmenopausal osteoporosis via activation of of BMP, TGFbeta and Wnt pathways</title>
    <link>https://pubs.kist.re.kr/handle/201004/153927</link>
    <description>Title: The osteogenic property of Ixeridium dentatum (Thunb.) Tzvelev ethanol extract suppresses postmenopausal osteoporosis via activation of of BMP, TGFbeta and Wnt pathways
Authors: Lazerka, Nadzeya; Hong, Soyeon; Yoo, GyHye
Abstract: Osteoporosis is a metabolic bone disorder with 40% increased fracture risk due to several causes including aging and hormone decrease. As the existing therapies for osteoporosis are accompanied by severe side effects, researches for safe agents among natural products are gaining attention. The effect of Ixeridium dentatum (Thunb.) Tzvelev ethanol extract (IDEE) was investigated on bone metabolism. In vitro study included the verification of IDEE effect on mineralization and osteoblast differentiation by Alizarin Red staining, ALP activity assay, qPCR and Western blot. Estrogenic properties of IDEE were estimated by ERE-Luc activity and the inhibitor application of estrogen signaling. In vivo study was conducted on ovariectomized mice model to analyze IDEE effect on bone and serum parameters under post-menopausal osteoporosis. At concentrations 25, 50, 100 µg/ml IDEE induced osteoblast differentiation and mineralization by the activation of BMP, TGFβ and Wnt signaling and this effect was partly mediated by estrogen signaling. The oral administration of IDEE at 40 and 100 mg/kg to ovariectomized mice have resulted in improved bone health parameters. Thus, IDEE can be considered as a promising agent for postmenopausal osteoporosis.</description>
    <dc:date>2024-05-29T00:00:00Z</dc:date>
  </item>
</rdf:RDF>

