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Role of K+ Channels to Resting Membrane Potential of Rabbit Middle Cerebral Arterial Smooth Muscle Cells
NariKim, JinHan, EuiyongKim, Yun-HeeKim, Jae-HongSim, Soo-CheonKim 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 8 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.6 2 547-554 (8 pages)
1 mM TEA in the rabbit middle cerebral arterial smooth muscle cells. Unitary K+ currents were recorded in an outside out patch held at +50 mV. Upward defection indicates channel opening and outward current. Dashed line indi cates current level when channel is close. Records were digitized at 5 kz. Exteral TEA decreased the open probability (Po) fom 0.25:0.03 to 0 at +50 mV (n=4). Channel... The aim of the present study is to investigate the contribution of Ca2-activated K (KCa) channels and delayed rectifier K (KV) channels to the resting membrane potential (RMP) in rabbit middle cerebral arterial smooth muscle cells. The RMP and membrane currents were recorded using the whole-cell patch configuration and single KCa channel was recorded using the outside-out patch configuration. Using the pipette solution containing 0.05 mM EGTA, the RMP was... -
Temporal Changes in Neuronal Activity of the Bilateral Medial Vestibular Nuclei Following Unilateral Labyrinthectomy in Rats
ByungRimPark, MoonYoungLee, MinSunKim, SungHoLee, HanJoNa, NamYongDoh 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 10 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1999, Vol.3 No.5 4 481-490 (10 pages)
neuron was acti vated by rotation toward contralateral (right) and inhi bited by ipsilateral (left). The lowest pannel shows posi tion curve of rotation (HP)， in which upward defection represents rightward rotation (R) and downward repre sents leftward rotation (L). rons than in type II (Table 1). In ULX， mean resting activity of ipsilateral type 1 neurons was 8.6: 6.4 spikesjsec at... To investigate the changes in the responses of vestibular neurons with time during vestibular compensation, the resting activity and dynamic responses of type I and II neurons in the medial vestibular nuclei to sinusoidal angular acceleration were recorded following unilateral labyrinthectomy (ULX) in Sprague-Dawley rats. The unitary extracellular neuronal activity was recorded from the bilateral medial vestibular nuclei with stainless steel microelectrodes of 3∼5 MΩ before ULX, and 6, 24,... -
Sensory Inputs to Upper Cervical Spinal Neurons Projecting to Midbrain in Cats
JongHoKim, Han-SeongJeong, Jong-SeongPark, Jong-KeunKim, Sah-HoonPark 대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 11 Pages
대한생리학회-대한약리학회 The Korean Journal of Physiology & Pharmacology 1998, Vol.2 No.1 2 9-19 (11 pages)
to electrical stimulation (3 mA， 0.2 msec， 0.5 Hz) of IPN at the level of innominate artery The first defection (marked with a solid circle) is the stimulus artifact， followed by action potentials at 16 msec initial latency. B: peristimulus histogram (PSTH) of the response to IPN stimulation. PSTH was generated from 15 sweeps of stimulus; stimulus delay 200 msec; bin width， 2.5 msec. C... -
북한이탈주민들의 외상경험과 외상 후 스트레스장애와의 관계
홍창형, 전우택, 이창호, 김동기, 한무영, 민성길 대한신경정신의학회 신경정신의학 7 Pages
대한신경정신의학회 신경정신의학 2005, 제 44권 제 6호 10 714-720 (7 pages)
divided into three factors: physical trauma, political-ideological trauma, and family-related trauma. In addition, the 19 items of traumatic events during defection were grouped into four factors：physical trauma, discovery and capture-related trauma, family-related trauma, and betrayal-related trauma. In multi-factorial logistic re- gression analysis, family-related trauma in North Korea had a... -
과대산포가 존재하는 이항형 자료의 회귀분석방법
김동기, 한무영, 전우택, 명성민, 송기준 대한신경정신의학회 신경정신의학 4 Pages
대한신경정신의학회 신경정신의학 2005, 제 44권 제 5호 3 549-552 (4 pages)
model Table 2. Logistic regression and overdispersed logistic regression analyses for the PTSD using trauma experiences in North Korea and during defection Logistic regression Overdispersed logistic regression Trauma factor Estimate (s.e. †) Odds ratio (95% C.I.) Estimate (s.e.) Odds ratio (95% C.I.) Intercept - 0.9241 (0.1676) - 0.9241 (0.1717) Trauma in North Korea Physical trauma -... -
3不정책 논쟁에 나타난 옹호연합간의 상호 적대화(devil shift) 현상 분석
변수연, 이희영, 박해경 한국교육행정학회 교육행정학연구 27 Pages
한국교육행정학회 교육행정학연구 2011, 제 29권 제 4호 3 47-73 (27 pages)
UK: Blackwell. J e n k i n s - S m i t h , H . C . , C l a i r , G . K . S . , & W o o d s , B . ( 1 9 9 1 ) . E x p laining change in policy subsystems: Analysis of coalition stability and defection over time. American Journal of Political Science, 35(4),pp.851-880. Jenkins-Smith, H. C., Sabatier, P.A.(1994). Evaluating the advocacy coalition framework. Journal of Public Policy, 14(2),... -
Comparative numerical evaluation for the low velocity impact behavior of T300 and T800 composite system
Jae-Seok Choi, Heung Soap Choi, Soo-Jin Park, Myung Kyun Park 한국탄소학회 Carbon Letters 7 Pages
한국탄소학회 Carbon Letters 2017, Vol.22 9 89-95 (7 pages)
frst the displacement progres- sively increases with time during the initial impact stage. When the impact striker reaches the maximum central defection of the specimen, the velocity of the impact striker becomes zero. At this characteristic time the specimen shows maximum defec- tion. The 7.6715 mm of maximum defection of the T300 speci- men is larger than the 7.4763 mm of T800 because it has... Carbon fiber reinforced polymer (CFRP) composites have been used for many decades for extreme light weight design purposes in various areas, such as the aerospace industry, automobiles, sports goods and etc. because they provide the advantages of high specific strength and high rigidity [1]. In particular, the fuselage and wings of various aircraft, as well as the load bearing structures and components of mechanical and civil engineering systems are currently being manufactured with CFRP.... -
Effect of fiber-matrix adhesion on the fracture behavior of a carbon fiber reinforced thermoplastic-modified epoxy matrix
H.J. Carrillo-Escalante, A. ?lvarez-Castillo, A. Valadez-Gonz?lez, P. J. Herrera-Franco 한국탄소학회 Carbon Letters 10 Pages
한국탄소학회 Carbon Letters 2016, Vol.19 6 47-56 (10 pages)
crack defection and 2) micro-cracking and crack bifurcation. Further- more, for the material in which the fber and matrix were both modifed. Fig. 7 shows an increase of 70% with respect to F(NO)+R(NO). This increase is attributed to the improved fber surface, and the inclusion of the PSF. When the carbon fber is surface modifed crack propagation occurs through the matrix, but in turn, to fnd... In this study, the fracture behavior of a thermoplastic-modified epoxy resin reinforced with continuous carbon fibers for two levels of fiber-matrix adhesion was performed. A carbon fiber with commercial sizing was used and also treated with a known silane, (3-glycidoxy propyl trimethoxysilane) coupling agent. Toughness was determined using the double cantilever test, together with surface analysis after failure using scanning electron microscope. The presence of polysulfone particles improved... -
Electrochemical synthesis of nanosized hydroxyapatite/graphene composite powder
Vesna Mi?kovi?-Stankovi?, Sanja Erakovi?, Ana Jankovi?, Maja Vuka?inovi?-Sekuli?, Miodrag Mitri?, Young Chan Jung, Soo Jin Park, Kyong 한국탄소학회 Carbon Letters 8 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.4 2 233-240 (8 pages)
osteoblasts during new tissue growth [2]. Crack defection is more effective when using sheet-like reinforcement, as compared with tubular-like reinforcement, suggesting that graphene nano-sheets (GNSs) exhibit a more pronounced toughening effect on brittle mate- rials than do carbon nanotubes (CNTs) [18]. Unlike CNTs, Gr has been synthesized in relatively pure ways and is expected to exhibit... (HAP/ Gr) composite powder suitable for medical applications as a hard tissue implant (scaffold). The synthesis was performed in a homogeneous dispersion containing Na2H2EDTA·2H2O, NaH2PO4 and CaCl2 with a Ca/EDTA/PO4 3? concentration ratio of 0.25/0.25/0.15M, along with 0.01 wt% added graphene nanosheets, at a current density of 137 mA cm?2 and pH value of 9.0. The field emission scanning electron microscopy and transmission electron microscopy observations of the composite HAP/Gr powder... -
Effects of cross-linking methods for polyethylene-based carbon fibers: review
Kwan-Woo Kim, Hye-Min Lee, Jeong-Hun An, Byoung-Suhk Kim, Byung-Gak Min, Shin-Jae Kang, Kay-Hyeok An, Byung-Joo Kim 한국탄소학회 Carbon Letters 24 Pages
한국탄소학회 Carbon Letters 2015, Vol.16 No.3 2 147-170 (24 pages)
well as heat defection temperature was observed. Moreover, an im- provement in tensile yield stress and modulus also resulted from the silane cross-linking, along with a reduction in elon- gation at break (Fig. 14). Sirisinha and Chimdist [85] also investigated silane- water cross-linked ethyleneoctene copolymer (EOR) and EOR/LDPE blends for their degree of cross-linking. The characterization... In recent decades, there has been an increasing interest in the use of carbon fiber reinforced plastic (CFRP) in aerospace, renewable energy and other industries, due to its low weight and relatively good mechanical properties compared with traditional metals. However, due to the high cost of petroleum-based precursors and their associated processing costs, CF remains a specialty product and as such has been limited to use in high-end aerospace, sporting goods, automotive, and specialist...