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테니스 포핸드시 밀어치기와 때려치기 타법의 운동학적 분석
윤양진,정미라,서국웅,이훈식,황명숙,강영택,윤길환 釜山大學校 附設 體育科學硏究所 1999 體育科學硏究所 論文集 Vol.15 No.-
This study consists in clarifying the meaning of various angles and velocity, and two types of the stroke of a pushing shot and hitting shot through the three-dimensional image analyses among the factors of exercise. To attain the purpose of such studies, the result of experiment and analysis for each of three athletes of boys and girls in high school and three persons in general came to the conclusion as follows; 1. The last motion of a group of A having a command of a follow shot showed greatly, compared with two groups of B and C, and this showed that a group of A took a rectilinear motion greatly to gain power and two group of B and C took a rotary motion greatly to gain speed. 2. A group of A having a command of a pushing shot move body weight forward from behind and give the first consideration to a rectilinear motion, and two groups of B and C having a command of the stroke of hitting shot used the turning of the shoulder and the waist and gave much weight to a rotary motion than a rectilinear one. 3. The position of the hitting point of a group of A having a command of a pushing shot turned out to be the waist, and that of the hitting point of two groups of B and C, the chest, and namely this showed that the position of the hitting point was decided according to the form of the stroke and pictures of various kinds. 4. In impacting, the speed decreased, for the power was controled to keep an accurate timing of stroke just before impacting
Structural and Optical Properties of a Pd(II) Complex with 1-Nonyl-3,4-bis(methylthio)pyrrole
Kang, Jun-Gill,Cho, Hyung-Kook,Park, Chang-Moon,Kang, Sung-Kwon,Kim, In-Tae,Lee, Sang-Woo,Lee, Ha-Hyeong,Lee, Young-Nam,Cho, Sang-Hee,Lee, Joo-Hyoung,Lee, So-Ha Korean Chemical Society 2008 Bulletin of the Korean Chemical Society Vol.29 No.3
Kang, Jun-Gill,Cho, Dong-Hee,Park, Changmoon,Kang, Sung Kwon,Kim, In Tae,Lee, Sang-Woo,Lee, Ha-Hyeong,Lee, Young-Nam,Lim, Dae-Won,Lee, Sung-Jae,Kim, Sung-Ho,Bae, Young-Ju Korean Chemical Society 2008 Bulletin of the Korean Chemical Society Vol.29 No.3
The complexes Pd(nbmtp)Cl2 and Pt(nbmtp)Cl2 (nbmptp = 1-nonyl-3,4-bis(methylthio)pyrrole) were prepared and their x-ray structures were determined at room temperature. The four-coordinated metal unit and the pyrrole ring formed a nearly planar geometry. The free ligand dissolved in CH2Cl2 produced two luminescence bands associated with the lone-pair electron of S (l max = 525 nm) and the pyrrole p electron (l max = 388 nm). When the two complexes were dissolved in CH2Cl2, these two luminescence bands were also observed, although the low-energy band was blueshifted. For the crystalline Pt(II) complex, only the strong charge transfer band (l max = 618 nm) from the d* orbital of Pt resulted from excitation of the lone-pair electron of S.
The incidence of tuberculosis after a measles outbreak.
Lee, Chang-Hoon,Lee, Eun Gyu,Lee, Ju-Young,Park, KeeHo,Lee, Beom Hee,Han, Hwasoon,Oh, Eunjung,Kim, Hee-Jin,Kang, Mi-Kyoung,Oh, Soo Yon,Bai, Jeong Ym,Bai, Gill-Han,Lee, Duk-Hyoung,Oh, Dae-Kyu,Lee, Jong The University of Chicago Press 2008 Clinical infectious diseases Vol.46 No.6
<P>Among 53,974 cases of measles that occurred during the 2000-2001 outbreak in Korea, the incidence of tuberculosis following measles was 47 cases per 214,949.6 person-years, which was significantly lower than that in the general population (standardized incidence ratio, 0.73; 95% confidence interval, 0.54-0.96). In conclusion, we did not find a positive relationship between measles and tuberculosis.</P>
Kang, Dae Gill,Sohn, Eun Jin,Lee, An Sook,Kim, Jin Sook,Lee, Dae Ho,Lee, Ho Sub Institute for Advanced Research in Asian Science a 2007 The American journal of Chinese medicine Vol.35 No.2
<P>Feeding high fructose (Frc) to rats induces a moderate increase in blood pressure, which is associated with insulin resistance. The present study was designed to evaluate the effect of the methanol extract of Sorbus commixta cortex (MSC) on vascular inflammation in a rat model of the metabolic syndrome induced by a high Frc-diet. Male Sprague-Dawley rats were divided into 4 groups and treated for 7 weeks as follows: 1) control, 2) high Frc-diet group, 3) Frc/MSC1 group; high Frc-diet group treated with MSC (100 mg/kg/day), and 4) Frc/MSC2 group; high Frc-diet group treated with MSC (200 mg/kg/day). High Frc-induced decreases of the expression level of aortic endothelial nitric oxide synthase (ecNOS) while the production of cyclic GMP (cGMP) was restored by treatment with MSC. On the contrary, increases of the expression level of endothelin-1 (ET-1) in the aorta, the transcription factor, the cytokine related with vascular inflammation, and the adhesion molecules were suppressed by MSC treatment. Moreover, MSC treatment was shown to lessen the thickening noted in the aortic intima and media of the high Frc-diet group. Our findings suggest that MSC may have an anti-vascular inflammatory effect on rats with a high Frc-induced metabolic syndrome.</P>
Lee, An Sook,Lee, Yun Jung,Lee, So Min,Yoon, Jung Joo,Kim, Jin Sook,Kang, Dae Gill,Lee, Ho Sub Hindawi Publishing Corporation 2012 Evidence-based Complementary and Alternative Medic Vol.2012 No.-
<P>Type 2 diabetes is associated with significantly accelerated rates of micro- and macrovascular complications such as diabetic vascular inflammation and endothelial dysfunction. In the present study, we investigated the protective effect of the aqueous extract of <I>Portulaca oleracea</I> L. (AP), an edible plant used as a folk medicine, on diabetic vascular complications. The db/db mice were treated with AP (300 mg/kg/day, p.o.) for 10 weeks, and AP treatment markedly lowered blood glucose, plasma triglyceride, plasma level of LDL-cholesterol, and systolic blood pressure in diabetic db/db mice. Furthermore, AP significantly increased plasma level of HDL-cholesterol and insulin level. The impairment of ACh- and SNP-induced vascular relaxation of aortic rings were ameliorated by AP treatment in diabetic db/db mice. This study also showed that overexpression of VCAM-1, ICAM-1, E-selectin, MMP-2, and ET-1 were observed in aortic tissues of untreated db/db mice, which were significantly suppressed by treatment with AP. We also found that the insulin immunoreactivity of the pancreatic islets remarkably increased in AP treated db/db mice compared with untreated db/db mice. Taken together, AP suppresses hyperglycemia and diabetic vascular inflammation, and prevents the development of diabetic endothelial dysfunction for the development of diabetes and its vascular complications. </P>
Kang Dae-Gill,Sohn Eun-Jin,Choi Deok-Ho,Lee Seung-Ju,Lee Ho-Sub The Physiological Society of Korean Medicine and T 2006 동의생리병리학회지 Vol.20 No.1
A pharmacological inhibition of nitric oxide synthase (NOS) in rats produces vasoconstriction, renal dysfunction, and hypertension. The present study was aimed at investigating whether the methanol extract of Serous commixta cortex (MSC) ameliorates $N^G$-nitro-L-arginine methylester (L-NAME) induced hypertension in rats. Treatment of rats with L-NAME (10 mg/kg/day in drinking water, 5 weeks) caused a sustained increase in systolic blood pressure (SBP). Administration of MSC (100 or 200 mg/kg/day, p.o) significantly lowered the SBP in the L-NAME-treated rats and this effect was maintained throughout the whole experimental period. Moreover, ecNOS expression in aorta and kidney tissue from L-NAME treated rats was significantly restored dy administration of MSC. Furthermore, the impairment of acetylcholine (ACh)-induced relaxation of aortic rings in the L-NAME treated rats was reversed dy administering of MSC. The renal functional parameters including urinary volume, sodium excretion, and creatinine clearance (Ccr) were also restored by administering MSC. Taken together, the present study suggeststhat MSC prevents the increase in SBP in rats with L-NAME-induced hypertension, which may result from the up-regulation of the vascular and renal ecNOS/No system.
Kang, Dae Gill,Cao, Li Hua,Lee, Jun Kyoung,Choi, Deok Ho,Kim, Seung Ju,Lee, Hyuck,Kim, Jin Sook,Lee, Ho Sub Institute for Advanced Research in Asian Science a 2006 The American journal of Chinese medicine Vol.34 No.4
<P>The butanol extract of Phellinus igniarius (BPI) induced relaxation of the phenylephrin e-precontracted rat aorta in a dose-dependent manner, and its effect was abolished by the removal of functional endothelium. Pretreatment of the aortic tissues with N(G)-nitro-L-arginine methyl ester (L-NAME), methylene blue, or 1H-[1,2,4]-oxadiazole-[4,3-alpha]-quinoxalin1-one (ODQ) inhibited the vascular relaxation induced by BPI. BPI-induced vascular relaxations were also markedly attenuated by the addition of verapamil or diltiazem, while the relaxant effect of BPI was not blocked by pretreatment with indomethacine, glibenclamide, tetraethylammonium (TEA), atropine, or propranolol. Incubation of endothelium-intact rat aorta with BPI increased the production of cGMP in a dose-dependent manner. These results suggest that BPI dilates vascular smooth muscle via endothelium-dependent nitric oxide-cGMP signaling pathway, with the possible involvement of L-type Ca(2+) channels.</P>
Kang, Dae-Gill,Sohn, Eun-Jin,Kim, Jin-Sook,Lee, Yun-Jung,Moon, Mi-Kyoung,Lee, An-Sook,An, Jun-Seok,Lee, Ho-Sub The Physiological Society of Korean Medicine and T 2006 동의생리병리학회지 Vol.20 No.5
Hypercholesterolemia is a pivotal pathogenic factor for the development and maintenance of atherosclerosis. The present study was designed to evaluate whether the methanol extract of Sorbus commixta cortex (MSC) restores vascular dysfunction in association with the aortic expressions of proinflarnmatory and adhesion molecules in high cholesterol (HC) diet-rats. Chronic treatment with low (100 mg/kg/day) or high doses (200 mg/kg/day) of MSC lowered the increase in plasma levels of triglyceride (TG) and low-density lipoprotein (LDL) cholesterol induced by a cholesterol-enriched diet without affecting on the plasma level of high density lipoprotein (HDL)-cholesterol. Vascular tone attenuated in the HC-diet rats was restored by administration with MSC. Treatment with MSC also suppressed the HC-induced increase in the monocyte chemoattractant protein-1 (MCP-1) and nuclear factor-$_K$B (NF-$_K$B) p65 expressions as well as expressions levels of adhesion molecules including intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (ICAM-1), and E-selectin in aorta. The present study also showed that MSC inhibited the HC-mediated induction of ET-1 and ACE expression. In histopathological examination, aortic segments in the HC-diet rat revealed thickening intima and media, which were blocked by administration with MSC. Taken together, MSC could suppress the development of atherosclerosis in the HC-diet rat model through the inhibition of the aortic expression levels of pro-inflammatory and adhesion molecules.
Inhibitory effect of Thuja orientalis on TNF-&agr;-induced vascular inflammation
Lee, Yun Jung,Hwang, Sun Mi,Yoon, Jung Joo,Lee, So Min,Kyung, Eun Ho,Kim, Jin Sook,Kang, Dae Gill,Lee, Ho Sub John Wiley Sons, Ltd. 2010 Phytotherapy research Vol.24 No.10
<P>Vascular inflammation is involved in the initiation and progression of vascular diseases including atherosclerosis. While conducting in vitro screening of 600 medicinal plant extracts, an aqueous extract of Thuja orientalis (ATO) was found to exhibit antiinflammatory activity in human umbilical vein endothelial cells (HUVEC). In the current study, the antiinflammatory activity of ATO and possible mechanisms for this were investigated in HUVEC. Preincubation with ATO (20 &mgr;g/mL) suppressed tumor necrosis factor-&agr; (TNF-&agr;)-induced expression of adhesion molecules including intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1) and E-selectin at both the protein and mRNA levels. ATO also inhibited U937 monocyte adhesion to HUVEC stimulated by TNF-&agr;. In addition, ATO attenuated TNF-&agr;-induced p65 NF-&kgr;B translocation into the nucleus and phosphorylation of I&kgr;B-&agr;. Furthermore, ATO significantly inhibited TNF-&agr;-induced intracellular reactive oxygen species (ROS) production. Overall, the present data suggest that ATO can suppress TNF-&agr;-induced vascular inflammatory processes, possibly via inhibition of ROS and NF-&kgr;B activation, in HUVEC. Copyright © 2010 John Wiley & Sons, Ltd.</P>