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송경식,임재혁,전민재,손태식 한국디지털포렌식학회 2022 디지털 포렌식 연구 Vol.16 No.2
With the development of IoT technology, the frequency of use of smart home appliances is also increasing. In particular, in the case of smart TVs, demand for them is also increasing as indoor activities increase due to the influence of 'COVID-19'. In particular, many people use smart TVs at home to use OTT (Over The Top Media Service) services such as 'Netflix' or various broadcasting and video services as TVs. However, as the demand for smart TVs increases, the frequency of hacking attacks on smart TVs continues to increase, and for this reason, high security of smart TVs in general homes is also important. This paper analyzes and researches various artifacts that can be collected on webOS-based smart TVs, and deals with how to utilize the digital forensics perspective on the collected artifacts. IoT 기술의 발전에 따라 스마트 가전제품들의 사용 빈도도 늘어나고 있다. 특히 스마트TV의 경우 ‘COVID-19’의 영향 으로 실내 활동이 증가함에 따라 그 수요 또한 높아지고 있다. 특히 ‘넷플릭스’와 같은 OTT (Over The Top media service) 서비스나 다양한 방송, 영상 서비스들을 TV로 이용하기 위해 많은 사람들이 스마트TV를 가정에서 사용하고 있 다. 하지만 스마트TV의 수요량이 높아진 만큼 스마트TV를 대상으로 한 해킹 공격의 빈도수가 지속적으로 증가하고 있으 며, 이 때문에 일반적인 가정 내의 스마트TV 또한 높은 보안성이 중요시되고 있다. 해당 논문에서는 webOS 기반의 스마 트TV에서 수집 가능한 다양한 아티팩트들에 대해 분석, 연구하고, 수집 된 아티팩트들에 대한 디지털 포렌식 관점의 활용 방안에 대한 내용을 다룬다.
송경식,정우식,전미라 한국식품과학회 2012 Food Science and Biotechnology Vol.21 No.3
One of predominant hallmarks in Alzheimer’s disease (AD) is extracellular senile plaques containing β-amyloid peptide (Aβ). Aβ is known to be directly responsible for the free radical production and lipid peroxidation, leading to apoptosis and cellular death. In this study, we investigated the possible protective effect of kaempferol 3-O-(6''-acetyl)-β-glucopyranoside (KAG) isolated from butterbur (Petasites japonicus) leaves against Aβ-induced neurotoxicity. Exposure of mouse neuroblastoma B103 cells to Aβ(25-35) at the concentration of 50 μM significantly reduced cellular viability and increased both oxidative stress and apoptotic rate. However, pretreatment of B103 cell with isolated KAG at 10 μM significantly inhibited Aβ-induced apoptotic cellular damage and reactive oxygen species (ROS) generation. Pretreatment of KAG also completely inhibited caspase-3 activity to the basal level at the concentration of 10 mM. This study therefore demonstrated that Aβ induced cellular death might be prevented by KAG from butterbur leaves by the suppression of ROS and the subsequent recovery of apoptotic cell death.