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Acute Ischemic Stroke in a 6-Year-Old Boy, Treated with Mechanical Thrombectomy: A Case Report
김기홍,이무숙,양태기 대한영상의학회 2016 대한영상의학회지 Vol.75 No.5
Pediatric acute ischemic stroke (AIS) is a relatively rare disease with an annual estimated incidence of 2.4–13 per 100000 children. However, pediatric AIS can lead to significant morbidity and mortality. Stroke in children differs from that in adults with respect to etiology, clinical presentation, or management. Therapeutic options for adult AIS are intravenous tissue plasminogen activator, intra-arterial pharmacological thrombolysis, and mechanical thrombectomy. However, management strategies for pediatric AIS, extrapolated largely from those of adult AIS, remain controversial. In this article, we present our experience in a boy with AIS, who was successfully treated with mechanical thrombectomy, by utilizing the Solitaire FR revascularization device.
n-GaAs 구조에서의 ArF excimer laser annealing에 따른 Photoreflectance 특성 연구
김기홍,유재인,심준형,배인호,임진환,김진희,유재용,Kim, Ki-Hong,Yu, Jae-In,Sim, Jun-Hyoung,Bae, In-Ho,Lim, Jin-Hwan,Kim, Jin-Hi,Yu, Jae-Yong 한국진공학회 2007 Applied Science and Convergence Technology Vol.16 No.2
n-GaAs의 시료를 furnace annealing 처리와 laser annealing 처리를 한 후, PR 방법으로 비교 조사하였다. 시료는 Furnace annealing을 5 분간 $400{\sim}800^{\circ}C$에서 처리한 시료와 ArF excimer laser($30{\sim}50\;W$)로 5 분간 Laser annealing 처리 한 시료로 준비하였다. Furnace로 annealing을 한 경우에 주 신호(정점)는 1.43 eV에서 관측되었는데 비해 laser로 annealing 한 샘플은 1.42 eV로 0.01 eV가 더 작게 관측되었다. 이는 laser annealing이 furnace annealing 보다 표면과 내면에서 일어나는 열처리 효과가 더 고르게 일어나가 때문이다. We investigated variation of the photoreflectance(PR) signals for n-GaAs furnace and laser annealed. The samples were annealed by using ArF excimer laser(5 min, $30{\sim}50\;W$) and furnace(5 min $400{\sim}700^{\circ}C$). The PR signals(top point) measured from the ArF excimer laser annealed sample showed 1.42 eV and furnace annealed sample showed 1.43 eV. This result is ArF excimer laser annealed sample was uniform annealed surface and inter state.
김기홍 지역사회학회 2018 지역사회학 Vol.19 No.2
It is said that the 21st Century is the era of community. Here the community means the village as the most general communal life unit of humankind. As statism and capitalism can not give humankind proper alternatives in spite of the heightening anxiety and the deepening uncertainty of the future, humankind cannot help but seek an alternative in village community. However, in the situation that the system of the village has been severely destroyed in the course of the growth of statism and capitalism, there is a doubt of how the village can be an alternative to solve the problems caused by the statism and capitalism. Moreover, most villages around world have been in very difficult situations by continuous resource depletion. This article tries to show the importance of village. Also, it seeks to use the merits of urbanization, information, and globalization. If villages of rural and urban areas, capital areas and provinces, and developed and developing countries are connected through information networks etc., those will be strengthened much more. Especially, this article suggests villiology, which means the new approach of the village study, as a way to find the true values of villages and make full use of those. Villiology will greatly contribute to revitalizing and sustaining villages all around the world through interdisciplinary research.
천막상부경막에서 발생한 혈관모세포종의 MR 영상소견: 증례 보고
김기홍,이호규,고명주,맹영희 대한영상의학회 2016 대한영상의학회지 Vol.75 No.1
Hemangioblastomas account for 1.1–2.5% of intracranial neoplasms. These tumors most commonly occur in the cerebellum. A 77-year-old woman had a hemangioblastoma, which showed the supratentorial meningeal mass without any history of von Hippel-Lindau disease. 혈관모세포종은 전체 두개내 종양의 1.1~2.5%를 차지하며 주로 소뇌에서 축내종양으로 발현한다. 저자들은 77세 여자 환자에서 폰 히펠-린다우 증후군과 연관성이 없으며 천막상부의 축외종양의 양상으로 나타난 혈관모세포종 1예를 경험하였기에 증례 보고를 하고자 한다.
방사성고화체로부터의 $^{60}$ Co, $^{137}$ Cs 침출에 대한 표준시험법의 상호비교
김기홍,유영걸,정경기,홍권표,이락희,정의영,고덕준,김헌,Kim, Ki-Hong,Ryu, Young-Gerl,Chung, Kyung-Ki,Hong, Kwon-Pyo,Lee, Nak-Hee,Jeong, Yi-Yeong,Koh, Duck-Joon,Kim, Heon 한국방사성폐기물학회 2003 방사성폐기물학회지 Vol.1 No.1
IAEA, FT-04-020 및 ANS 16.1의 침출시험법을 각각 수행하여 얻은 시험결과를 이용하여 상호 비교 평가하였다. 붕산을 함유한 파라핀 및 시멘트 고화체에서의 $^{60}$Co 과 $^{137}$Cs의 ANS 16.1의 침출지수는 6이상이었으나 고화매질과 탈염수의 종류에 따라 상반되는 침출거동을 보였다. 침출수로 합성해수와 탈염수를 사용하였을 경우 $^{60}$Co는 시멘트 고화체에서는 합성해수, 파라핀 고화체에서는 탈염수에서 침출이 높았다. 반면에 $^{137}$Cs의 침출정도는 시멘트에서는 탈염수, 파라핀에서는 합성해수에서 높았다. $^{60}$Co의 침출분율은 시멘트 고화체에서 IAEA > ANS > FT의 순으로 높았으며, 반대로 파라핀고화체에서는 이의 역순이었다. IAEA, FT-04-020, and ANS 16.1, standard leaching test methods, were evaluated comparatively with their test results. Leaching index of $^{60}$ Co and $^{137}$ Cs by ANS 16.1 method for waste forms of paraffin and cement were above 6.0. Their leaching behavior were depending on the type of matrix and leachant. Leachability of $^{60}$ Co for cement waste form was higher in simulated seawater than do-mineralized water, and was higher in de-mineralized water for paraffin waste form. leachability of $^{60}$ Co was contrary to $^{137}$ Cs. Cumulative fraction leached of $^{60}$ Co was higher in order or IAEA > ANS > FT in a cement waste form.
김기홍,조해욱,신동훈,최종수,방용준,서순봉 ( Ki Hong Kim,Hae Ook Cho,Dong Hoon Shin,Jong Soo Choi,Young Jun Bang,Soon Bong Suh ) 대한피부과학회 1997 대한피부과학회지 Vol.35 No.1
Background: Tinea pedis is one of the most comrnon dermatoses in the general population. But its prevalence in the general populat,ion was not yet reported in Korea. Objective : Prevalence of tinea pedis and associated tinea unguium were checked in the general population. Methods : Six hundred fifty eight persons from 179 families of the college students were evaluated. Clinical examinatior. for tinea pedis and onychomycosis and collecting scales from the suspicious lesions of the family members were perforrned by educated college students. Then dermatologists exarnined those specimens mycologically by KOH ~tnount and fungal culture. Results . The results were as follows 1. The prevalence of tinea pedis was 41.2% in the studied 658 persons. 2. Among all 271 patients with tinea pedis, 201 strains of dermatophytes were isolated. They were 143 strains of Trichophyton(T) rubrum, 49 strains of T. mentagrophytes and 9 mixed infections of T. rubrum and T. mentagrophytes. In the co existence of i,inea pedis and tinea unguiurn, isolated species were corresponding. 3. Among 179 families, 143 families (79.9%) had at least one patient with tinea pedis. The isolated species of derrnatophytes in a farnily were one organism, 71.4% and two or more organisms, 28.6% of 77 familiys with more than one patient. Conclusion : In our study, the prevalence rate of tinea pedis was 41.2%. That suggests that tinea pedis is a wide spr .ad disease in healthy adult in Korea. (Kor J Dermatol 1997;35(1): 114-120)