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A Study on Responding to DDoS Architecture in Smart Phone Environment
Mi-Ran Han,Young-Chul Oh,Jong-Bae Kim 보안공학연구지원센터 2016 International Journal of Security and Its Applicat Vol.10 No.6
A smart phone is closely related to our lives throughout the world. It processes and stores various information from personal information to classified information of companies. As it is called as “a PC in my hand,” it is similar to a PC so that it is likely to be misused, being exposed to many security threats such as hacking, malicious code, and loss, just like the DDoS attack on PC. A hacker can control a smart phone through a number of zombie smart phone instructions, even shutting down the service on the server. However, it is difficult to adapt the PC defense system to the smart phone environment as is because the attack methods on a PC and a smart phone are different. Therefore, this study aims to compare and analyze DDoS attacks on the smart phone environment and PC environment to predict DDoS attack scenario on the smart phone and establish a defense system to reduce the damage.
Oh, Daeyoung,Choi, Mi Ran,Han, Dal Mu Ri,Chai, Young Gyu,Choi, Joonho Wolters Kluwer Health | Lippincott Williams Wilkin 2014 NEUROREPORT - Vol.25 No.17
Fluoxetine, a serotonin-selective reuptake inhibitor, exerts antidepressant and antianxiety effects on major depressive and anxiety disorders. Previous studies suggest that treatment with fluoxetine influences the expression of various proteins that are involved in proliferation, differentiation, and apoptosis in the neuronal cells of the brain. However, many aspects of the molecular pathways that modulate antidepressant action are not well understood. Here, with the aim of identifying proteins involved in antidepressant action, we examined the protein expression profile of human embryonic carcinoma (NCCIT) cells in response to fluoxetine treatment using proteomic techniques such as two-dimensional gel electrophoresis and matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF MS). We found several upregulated and downregulated proteins in fluoxetine-treated NCCIT cells, and then biochemically confirmed the increased expression of heat shock protein 90 and 14-3-3&epsis;, which play an essential role in many cellular mechanisms including cell cycle control and other signaling pathways. Our data suggest that the regulated expression of heat shock protein 90, 14-3-3&epsis;, and other identified proteins may be associated with the therapeutic action of fluoxetine.
Oh Keun Kwon,Young Ran Lee,Pue Hee Park,Hye Ryun An,Pil Man Park,Yoon Su Baek,Mi Seon Kim 한국화훼학회 2018 화훼연구 Vol.26 No.3
Phalaenopsis ‘Blanc Rouse’ 품종은 국립원예특작과학원에서 2013년도에 육성한 신품종이다. 이 품종은 2007년에 백색 바탕에 분홍색의 소형 P. ‘KV 600’ 품종을 모본으로 하고 진한 핑크색의 P. ‘Kang 1’ 품종을 부본으로 교배시킨 후대 계통 중에서 선발하였다. 2010년에 화색, 초장, 화경 및 식물체의 생육상태 등을 고려하여 1차 선발 후 2013년에 2차 특성검정을 통하여 품종의 안정성과 균일성을 확인하고 ‘Blanc Rouse’로 명명하였다. 이 품종은 흰색바탕에 자주색 순판을 가졌으며 꽃 가운데 분홍색의 줄무늬가 크게 형성되어 있는 품종이다. 화형은 꽃잎과 꽃받침이 평편한 모양이고 꽃의 길이와 폭은 4.3cm, 4.8cm로 소형이다. 꽃대가 평균 2개 발생하며 복총상 화서로 화서당 꽃 수가 39.4개로 볼륨이 있어 소형분화에 적합하다. 자연 개화시기는 11월 하순으로 개화가 빠른 조생종 이다. 잎의 길이와 폭은 각각 17.3, 6.2cm이며 엽형은 수평이다. 기내 증식력이 높고 변이가 거의 없으며 내병성이 강하여 재배관리가 용이하다. The Phalaenopsis cultivar ‘Blanc Rouse’ was bred by the National Institute of Horticultural and Herbal Science (Wanju-gun, Korea) in 2013. The ‘Blanc Rouse’ cultivar was derived from a cross between the miniature cultivar P. ‘KV 600’ and P. ‘Kang 1’ in 2007. In total, 182 seedlings were planted and cultivated in a greenhouse. In 2010, one line was selected on the basis of performance for traits such as flower color, plant height, leaf shape, flower stalk length, and vigorous growth; this line was given the line code “07-003-164.” A second set of analyses was carried out on the selected line with respect to cultivation characteristics and uniformity tests at farms at three different sites in Korea. This hybrid had white-colored petals (WN155A), a purple-violet lip (PVN80B), and small-sized flowers. ‘Blanc Rouse’ produces approximately 39.4 flowers per flower stalk and two flower stalks per plant. The average flower stalk length is 43.5 cm. The general impression of the petals and sepals is that they exhibit a flat shape. It has an early-blooming habit that starts in late November under optimal culture conditions. The leaves of ‘Blanc Rouse’ grow horizontally and are approximately 17.3 cm in length and 6.2 cm in width. This cultivar possesses no genetic variation and is amenable to fast in vitro propagation and easy cultivation management because of its vigorous habit and diseases resistance.
( Mi Sun Kim ),( Kil Soo Bae ),( Hye Jin Kim ),( Suk Ran Yoon ),( Doo Byung Oh ),( Kwang Woo Hwang ),( Woo Jin Jun ),( Sang In Shim ),( Kwang Dong Kim ),( Yong Woo Jung ),( So Young Park ),( Ki Sun Kw 한국응용약물학회 2011 Biomolecules & Therapeutics(구 응용약물학회지) Vol.19 No.2
Natural Killer (NK) cells are the lymphocytes that are derived from hematopoietic stem cells, developed in the bone marrow from hematopoietic stem cells (HSC) by sequential acquisition of functional surface receptors, and express the repertoire of inhibitory and activating receptors. Recently, Osteopontin (OPN) has been identified as a critical factor for differentiation of natural killer cells. However, the detailed mechanism of OPN-induced NK differentiation has been still to be elucidated. Here, we determined the signaling pathway and possible receptor for OPN in NK differentiation. OPN induced expression of Bcl-2 and activation of Erk kinase. Inhibition of Erk pathway decreased the effect of OPN on NK differentiation. In addition, the expression of integrin α9 was significantly increased by OPN during NK differentiation, suggesting the possible role of a major signaling molecule for OPN-induced NK differentiation.
( Mi Ran Jo ),( Mi Hee Park ),( Dong Young Choi ),( Dong Yeun Yuk ),( Yuk Mo Lee ),( Jin Moo Lee ),( Jae Hwang Jeong ),( Ki Wan Oh ),( Moon Soon Lee ),( Sang Bae Han ),( Jin Tae Hong ) 한국응용약물학회 2011 Biomolecules & Therapeutics(구 응용약물학회지) Vol.19 No.3
Amyloid beta (Aβ)-induced neurotoxicity is a major pathological mechanism of Alzheimer`s disease (AD). In this study, we investigated the inhibitory effect of L-theanine, a component of green tea (Camellia sinensis) on Aβ1-42-induced neurotoxicity and oxidative damages of macromolecules. L-theanine inhibited Aβ1-42-induced generation of reactive oxygen species, and activation of extracellular signal-regulated kinase and p38 mitogenic activated protein kinase as well as the activity of nuclear factor kappa- B. L-theanine also significantly reduced oxidative protein and lipid damage, and elevated glutathione level. Consistent with the reduced neurotoxic signals, L-theanine (10-50 μg/ml) concomitantly attenuated Aβ1-42 (5 μM)-induced neurotoxicity in SK-N-MC and SK-N-SH human neuroblastoma cells. These data indicate that L-theanine on Aβ-induced neurotoxicity prevented oxidative damages of neuronal cells, and may be useful in the prevention and treatment of neurodegenerative disease like AD.