흰쥐 망막에서 콜린성 신경원의 분포양상과 연접회로

김인범,오수자,나화균,이문용,천명훈 대한해부학회 1998 Anatomy & Cell Biology Vol.31 No.1

跆拳道 選手의 體級間 體格 및 體力에 關한 比較硏究

최인범,정용승 경기대학교 1995 論文集 Vol.37 No.-

We made an analysis of correlation and an analysis of variance to grasp the difference of physical fitness among weights and the correlation of physical fitness and sports career in Taekwondo, making the subjects of 24 high school players light weight class-9, middle weight class-9, and heavy weight class-6, who live in cheong ju city. The results are as follows ; 1) There was a significant difference in almost items among 3 group in the test of physique. There was a lot of deviation in girth of chest, length of leg, girth of thigh and skinfold thickness. 2) When Tae kwon do players were heavier in the test of physical fitness, there was a significant difference in grip strength and back strength and no significant difference in dipping, pull-up. Especially agility, flexibility and power were shown to be higher in light weight class than heavy weight class. 3) In the correlation of physical fitness and sports career, when they had lots of careers, there were certain correlations in dipping, shuttle run, burpee test and trunk flexion. Especially there was the contray correlation in back strength, sargent jump, trunk extension, when they had lots of careers. 4) In the analysis of variance about physical fitness factors among weight, there was no significant difference in grip strength, back strength, agility, but there was a significant difference in pull-up and harvard step test.

ERK1/2-Mediated Schwann Cell Proliferation in the Regenerating Sciatic Nerve by Treadmill Training

Seo, Tae Beom,Oh, Myung-Jin,You, Byoung-Gun,Kwon, Ku-Birm,Chang, In-Ae,Yoon, Jin-Hwan,Lee, Chan-Yong,Namgung, Uk Mary Ann Liebert 2009 JOURNAL OF NEUROTRAUMA - Vol.26 No.10

<P>Proliferation of Schwann cells in the injured peripheral nerve supports axonal regeneration, and physical training in experimental animals has been shown to promote nerve regeneration. Extracellular signal-regulated kinase 1/2 (ERK1/2) activity can mediate neuronal responses to lesion signals, but its role in non-neuronal cells in the injured area is largely unknown. Here we report that treadmill training (TMT) facilitates axonal regeneration via the upregulation of phospho-ERK1/2 protein levels in Schwann cells in the injured sciatic nerve. Low-intensity, but not high-intensity, TMT increased neurite outgrowth of dorsal root ganglion (DRG) sensory neurons and potentiated Schwann cell proliferation. TMT elevated levels of GAP-43 mRNA and protein, and phospho-ERK1/2 protein in the injured sciatic nerves. TMT also enhanced phospho-c-Jun protein levels in the injured nerve. In-vivo administration of the ERK1/2 inhibitor PD98059 eliminated phospho-c-Jun, suggesting ERK1/2 phosphorylation of the c-Jun protein. PD98059 treatment decreased levels of BrdU-labeled proliferating Schwann cells in the distal portion of the injured nerve, and delayed the axonal regrowth that was promoted by TMT. The present data suggest that increased ERK1/2 activity in Schwann cells may play an important role in TMT-mediated enhancement of axonal regeneration in the injured peripheral nerve.</P>

In-Situ X-Ray Fluoroscopic Observation for Motion of Bubbles in Liquid Iron for Correction of Drag Coefficient Used in Numerical Simulation

In-Beom Park,Sang-Joon Kim,Hae-Geon Lee,Youn-Bae Kang 대한금속·재료학회 2016 METALS AND MATERIALS International Vol.22 No.4

Rising of Ar bubble in C-saturated liquid iron was investigated in-situ by employing a high power X-Ray fluoroscope (maximum power of 450 kV and 4.5 mA) coupled with a high speed camera. This analysis enabled to track the actual motion of rising bubble in the liquid iron. After post-processing of X-Ray images, size, shape, velocity, and trajectory of the bubble were obtained. The bubbles were found to be not spherical, but ellipsoidal. Their average size could be estimated about 1.1×10 -2 m. The bubbles wobbled during rising and arrived at their terminal velocities within 0.1 sec. The obtained terminal velocities revealed that the governing forces acting on the motion of ellipsoidal bubble were inertia and surface force. This was quite different from that of spherical bubble which was widely used in the assumption for the numerical analysis. As a result, widely applied equation for the drag coefficient (CD = 24 (1 + 0.15Re 0.687 ) / Re) is seen to be applicable only for low Re regime, and this was also confirmed by the drag coefficient derived from the present experimental observation. Therefore, it is suggested to use the following equation for the drag coefficient CD = max [24 (1 + 0.15Re 0.687 ) / Re, 8Eo / 3(Eo + 4)]. Numerical simulation for the Ar bubble behavior in the three dimensional (3D) continuous casting mold was conducted in order to evaluate the effect of the drag coefficient for the behavior of spherical and ellipsoidal bubbles. The numerical results showed that the increased CD based on ellipsoidal regime affected the entire fluid in the mold.

태권도장 수련생 모집에 관한 질적 연구

오인호(OH, In-Ho),김범식(Kim, Beom-Sig) 한국체육과학회 2013 한국체육과학회지 Vol.22 No.4

This study aimed to analyze success factors and weakness factors among taekwondo training stadiums and thereby provide assistance in the management of taekwondo gyms based on insights gained from successful cases. The investigation methods used to achieve this research purpose included the qualitative research method of in-depth interviews and successful gyms were analyzed from various perspectives using methods such as attributes factors analysis, 4p’s marketing mix factor analysis and SWOT analysis, selected in accordance with their characteristics. The analysis of gym attributes indicated that the factors that determined success included materials and non-materials services, the degree of openness in the pedagogical approach, transparency in the management of training tuition fees secured by means of the direct participation of the trainees’ parents, the partial return of fees to trainee members, and positive facilities. The 4p’s marketing mix factor analysis found that successful gym were those that increased the satisfaction of the trainees and their parents through the systemically interrelated effects of location, program contents, fee prices, facilities and promotional advertisements. The SWOT analysis demonstrated that the educational program, gym trainee management, gym operation, prioritization of customers satisfaction and management mentality constituted the strength factors, while locational conditions, lack in martial arts aptitudes, decentralization of operations, lack in education time for trainees and lack in proper taekwondo characteristics were weakness factors. In additions, future-oriented gyms were observant of sustained interaction with regional growth to identify opportunities for gym branching and emphasized educational value for consumers, while introducing the latest educational programs to not only enhance the quality of education but also improve communication with parents, utilizing communication technologies to achieve success in their trainee recruitment efforts.

당뇨병환자에서 뇨증 Fibronectin농도의 증가에 관한 연구

한승범,조준승,손건영,서성문,박근용,조성래,박규영,박정모,이인규,여준기 啓明大學校 醫科大學 1994 계명의대학술지 Vol.13 No.4

Plasma fibronectin is an α₂-glyoprotein, which is produced by vascular endothelial cells. Raised level of plasma fibronectin has been observed in diabetic patients particularly in the presence of microvascular complications. However, no available data exist about urine level of this glycoprotein in diabetic patients. We measured urine fibronectin level by ELISA methods in 54 diabetic patients who have microvascular comlications or not. The following results were obtained. 1) Urine fibronectin level(㎍/g creatinine) in diabetic group(1740.0±678.0) is increased compaired with those in normal control group(471.0±59.0). but this results were not significantly different among two groups(P>0.05). 2) Urine fibronectin level(㎍/g creatinine) was significantly increased in patients with nephropathy (6188.0±3144.0) compared with those in normal control group(471.0±59.0) and patients without nephropathy(645.0±251.0)(P<0.001). 3) There were a significant correlation between BUN, creatinine, creatinine clearance, 24hr urine total protein and urine fibronectin level in diabetic patients. Our data suggest that urine fibronectin excretion level might be used as a sensitive guide for diabectic nephropathy.

출생후 흰쥐 망막에서 recoverin면역반응 원뿔두극세포의 분화와 GABA성 무축삭세포와의 연접형성 시기

박대균,김인범,천명훈,정진웅 대한해부학회 1999 Anatomy & Cell Biology Vol.32 No.1

흰쥐 망막에서 glycine성 신경원의 연접회로에 대한 면역세포화학적 연구

엄승룡,김인범,이문용,천명훈 대한해부학회 1997 Anatomy & Cell Biology Vol.30 No.2

가막만에 출현하는 동물플랑크톤의 종조성과 계절별 출현 양상

서호영,이인태,윤양호,최상덕,이삼노,한명일,김병섭,강윤호,이우범 한국환경생물학회 2002 환경생물 : 환경생물학회지 Vol.20 No.2

가막만에 출현하는 동물플랑크톤을 계절별(2001년 4월, 7월, 9월, 12월)로 Norpac네트를 이용하여 수직 채집하였다. 우점적으로 출현한 분류군은 4월과 12월에 요각류, 7월에 요각류와 지각류,9월에 야광충이었다. 출현 개체수는 22~17,197indiv. m^-3으로 시·공간적으로 변동폭이 매우 컸다. 요각류의 우점종은 4월에 Euryte-mora pacifica, Acartio omorii, Cenfropages abdominalis, Colanus sinicus, 7월에 Lobidocera rofunda와 A. erythraea, 9월에 A. eryfhraea와 Paracalanus parvus s. l., 12월에 A. omorii와 E. pacifca로 주로 내만종으로 변하였다. 그러나, 9월에 외양종인 Eucalanus sp.와 Neo-calnus sp. 또한 다수 출현하였다. 이와 같은 출현 경향은 가막만이 폐쇄성 내만임에도 불구하고 동물플랑크톤의 분포 특성은 내만수 이외에 계절적으로 외만수의 영향을 강하게 받고 있음을 암시하고 있다. Zooplankton was sampled vertically with a Norpac net from Gamag Bay in April, July, September and December, 2001. Copepods were predominant in April and December, and cladocerans in July and Noctiluca scintillans in September, respectively. There are high spatio-temporal fluctuations in the abundance of zooplankton with a range of 22∼17,197 indiv./㎥. In the copepod community, neritic species, Eurytemora pacifica, Acartia omorii, Centropages abdominalis and Calanus sinicus were predominant in April; Labidocera rotunda and A. erythraea in July; A. erythraea and Paracalanus parvus s. l. in September; A. omorii and E. pacifica in December. However, oceanic species Eucalanus sp. and Neocalanus sp. were abundant in September. It indicates that although Gamag Bay is semi-closed, the distribution pattern of zooplankton is seasonally strongly affected by oceanic waters in addition to neritic ones.

흰쥐의 원위콩팥단위내 칼슘결합단백질 (calbindin-D28k)에 관한 면역세포화학적 연구

김영희,김완영,김인범,한승호,오수자,차정호,김진 대한해부학회 1997 Anatomy & Cell Biology Vol.30 No.6