• Title/Summary/Keyword: Central action

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Study of Literature on RADIX STEMONAE(Investigation of efficacy and pharmacological action on RADIX STEMONAE) (백부근(百部根)에 관(關)한 문헌적(文獻的) 고찰(考察) (효능(效能) 및 약리작용(藥理作用)을 중심(中心)으로))

  • Choi Hae-Yun;Kim Jong-Dae
    • Herbal Formula Science
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    • v.7 no.1
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    • pp.65-76
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    • 1999
  • According to the study of literature on RADIX STEMONAE about its efficacy, pharmacological action, and clinical adaptive disease, the results are as follows; 1. About the efficacy of RADIX STEMONAE, it is known as moistening the lungs to arrest cough, and intestinal parasites from ancient to now, and dispelling phlegm is also known. 2. The clinical adaptation of RADIX STEMONAE is chronic bronchitis, pertussis, pulmonary tuberculosis in respiratory disease, and ascaricide for Ascaris, Enterobius vermicularis or eczema, pruritus, destroy louse for endermic liniment. 3. The pharmacological action of RADIX STEMONAE are antitussive, tuberculostatic, anthelmintic, antibacterial, antivirus, antifungal. 4. The antitussive mechanism of RADIX STEMONAE is central inhibitor for cough center of medulla oblongata, and the mechanisms of bronchial smooth muscle relax, and expectorant is also known.

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The Effects of Global Synkinesis Level on Gait Ability in Post-Stroke Hemiplegic Patients (뇌졸중 후 편마비 환자의 Global Synkinesis 수준이 보행능력에 미치는 영향)

  • Lim, Jae-Heon;Lim, Young-Eun;Kim, Su-Hyon;Park, Kyeong-Soon;Kim, Tae-Youl
    • The Journal of Korean Physical Therapy
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    • v.20 no.3
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    • pp.9-18
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    • 2008
  • Purpose: We determined the effect of global synkinesis(GS) on gait ability, muscle contraction, and central neuron action potentials in post-stroke hemiplegic subjects. Methods: Thirty hemiplegia patients were evaluated for walking ability, muscle contraction, central neuron action potential, and comparing differences between the H-GS(high-global synkinesis) group and L-GS(low-global synkinesis) group. To obtain the GS level, surface electromyography(EMG) data were digitized and processed to root mean square(RMS). Walking ability was tested with a modified motor assessment scale(MMAS), a 10 m walking test, timed up and go(TUG) test, and a Fugl-Meyer assessment(FMA). Muscle contraction ability was measured as maximal isometric contraction(MIC) peak, MIC slope, and MIC ramp up using mechanomyography(MMG). Central neuron action potential was measured as the H/Mmax ratio or V/Mmax ratio using EMG. The data were analyzed with t-tests to determine the statistical significance. Results: MMAS(p<0.01), 10 m walking velocity(p<0.01), TUG(p<0.01), FMA-HKA(Hip, Knee, Ankle)(p<0.05), FMA-coordination(p<0.05), MIC peak (p<0.05), MIC slope(p<0.01), and MIC ramp up(p<0.05) were significantly different between H-GS and L-GS, as was the V/Mmax ratio(p<0.05), but H/Mmax was not. Conclusion: Lower GS levels indicated better walking ability and motor function. Therefore, intervention programs should consider GS levels in gait training of chronic hemiplegia.

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A Journey to Action Research in a Clinical Nursing Context (임상간호현장에서의 실행연구 여정)

  • Jang, Keum Seong;Kim, Heeyoung;Kim, Eun A;Kim, Yun Min;Moon, Jeong Eun;Park, Hyunyoung;Song, Mi-Ok;Baek, Myeong
    • Journal of Korean Academy of Nursing Administration
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    • v.19 no.1
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    • pp.95-107
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    • 2013
  • Purpose: The purpose of this study was to examine the effectiveness of Action Research (AR) approach in nursing. Methods: Participants were 64 perioperative nurses recruited from C hospital in Gwangju, Korea. The nurses were engaged in the project through 2 cycles of planning, acting, observing, and reflecting. A mixed-methods design was used to examine changes in participants and their knowledge management practice. Quantitative data were analyzed using SPSS 20.0 program and qualitative reflection data underwent content analysis. Results: During the project, participants developed standardized pre-operative checklists and opened an Internet Cafe to better manage their perioperative nursing information. At the end of the project, there was a significant increase in nurses' knowledge management (p=.015) and the rate of surgical material prescription errors decreased from 8.0% to 2.9%. Core AR project team members' teamwork skills and organizational commitment increased significantly (p=.040, p=.301, respectively). The main themes that emerged from the qualitative data were learning how to solve problems in practice, facilitating team activities through motivation, barriers of large participation, and rewarded efforts and inflated expectations. Conclusion: The AR project contributed to empowering participants to solve local problems. AR is a useful methodology to promote changes in practices and research participants.

Progressive Collapse Resistance of RC Frames under a Side Column Removal Scenario: The Mechanism Explained

  • Hou, Jian;Song, Li
    • International Journal of Concrete Structures and Materials
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    • v.10 no.2
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    • pp.237-247
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    • 2016
  • Progressive collapse resistance of RC buildings can be analyzed by considering column loss scenarios. Using finite element analysis and a static test, the progressive collapse process of a RC frame under monotonic vertical displacement of a side column was investigated, simulating a column removal scenario. A single-story 1/3 scale RC frame that comprises two spans and two bays was tested and computed, and downward displacement of a side column was placed until failure. Our study offers insight into the failure modes and progressive collapse behavior of a RC frame. It has been noted that the damage of structural members (beams and slabs) occurs only in the bay where the removal side column is located. Greater catenary action and tensile membrane action are mobilized in the frame beams and slabs, respectively, at large deformations, but they mainly happen in the direction where the frame beams and slabs are laterally restrained. Based on the experimental and computational results, the mechanism of progressive collapse resistance of RC frames at different stages was discussed further. With large deformations, a simplified calculation method for catenary action and tensile membrane action is proposed.

Studies on the Efficacy of Combined Preparation of Crude Drugs(XXXVI) -Effects of Sipmidojuksan on the Central Nervous and Cardiovascular Systems- (생약복합제제(生藥複合製劑)의 약효연구(藥效硏究)(제36보)(第36報) -십미도적산(十味導赤散)이 중추신경계(中樞神經系) 및 순환기계(循環器系)에 미치는 영향(影響)-)

  • Hong, Nam-Doo;Koo, Bon-Hong;Joo, Soo-Man;Lee, Sung-Kyu
    • Korean Journal of Pharmacognosy
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    • v.19 no.2
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    • pp.141-151
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    • 1988
  • The sedative, antipyretic, analgesic and anticonvulsive action, action on the isolated ileum in mice, retricting action on edema, action on blood pressure and respiration of Sipmidojuksan were evaluated. The results were as follows; sedative effects were recognized by the unbalanced effects of spontaneous momentum by wheel cage method, muscle relaxing action by rotor rod method and prolongation of sleeping hours. In mice, a significant antipyretic effect to endotoxin was recognized. Significant anagesic effects by acetic acid and Randall-Sellito method were recognized. Significant anticonvulsive effects to strychnine and picrotoxin were recognized. Spontaneous momentum of isolated ileum in mice was restricted, and relaxing effects on smooth muscle of digestive organ were noted by anti-acetylcholine, anti-barium chloride and anti-histamine effects. Significant antiedemic effects to carrageenin and histamine were recognized. Dilatation of blood vessels and decrease of blood pressure were noted.

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Renal Action of SKP-450, $K^+$Channel Opener, in Dog ( $K^+$ Channel 개방제인 SKP-450의 신장작용)

  • 고석태;김미형
    • Biomolecules & Therapeutics
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    • v.8 no.1
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    • pp.44-52
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    • 2000
  • SKP-450 which is $K^{+}$ channel opener, When given into duodenum, exhibited the decline of urine flow accompanied with the decrease of glomerular filtration rates (GFR), renal plasma flow (RPF), N $a^{+}$ and $K^{+}$ excreated in the urine ( $E_{Na}$ , $E_{K}$) and the increase of $K^{+}$N $a^{+}$ratios, and then appeared the significant fall of mean arterial pressure (MAP) and unchanged of reabsorption rates of N $a^{+}$, $K^{+}$ in renal tubules ( $R_{Na}$ , $R_{K}$). SKP- 450 injected into the vein elicited the decline of urine flow along with the reduction of $E_{Na}$ , $E_{K}$, and the increase of $R_{Na}$ , $R_{K}$ and $K^{+}$M $a^{+}$ ratios. SKP-450 administered into a renal artery produced diuretic action along with the increase of $E_{Na}$ , $E_{K}$ and the decrease of $R_{Na}$ , $R_{K}$ in experimental kidney, whereas produced the same aspect to intravenous SKP-450 in the control kidney. Above results suggest that SKP-450 possess both diuretic action in the kidney and central antidiuretic action in dog.tic action in dog.tion in dog.

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Effect of Methoxyverapamil on Renal Function of Dogs (개의 신장기능에 미치는 메톡시베라파밀의 영향)

  • Ko, Suk-Tai;Lee, Han-Goo;Na, Han-Kwang
    • YAKHAK HOEJI
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    • v.36 no.1
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    • pp.46-55
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    • 1992
  • Methoxyverapamil, $Ca^{2+}$ channel blocker, when given intravenously by means of bolus, produced the transient increase of urine flow, and then methoxyverapamil was infused in this experiments. Methoxyverapamil, when infused into vein, elicited the increase of urine flow ancampanied with the increased glomeralar filtration rate(GFR), renal plasma flow(RPF), excretion amounts of sodium and potassium in urine($E_{Na},\;E_k$) and osmolar clearance(Cosm), wherease produced the no change of free water clearance($C_{H2O}$) and the reduction of reabsorption rates of sodium and potassium in reral tubules($R_{Na},\;R_k$). Methoxyverapamil, when infused into a renal artery, exhibited the diuretic action in only infused Kidney, at this time changes of renal function were the same aspect to that of intravenously infused methoxyverapamil. Methoxyverapamil, when infused into a carotid artery, exhibited the decreased urine flow along with the reduction of Cosm, $C_{H2O}\;and\;E_{Na}$. Above results suggest that methoxyverapamil possess both the diuretic action by direct action in kidney and antidiuretic action through the central function.

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Effects of Glibenclamide, an ATP-dependent $K^+$ Channel Blocker, on Renal Function in Dog (ATP 의존성 $K^+$ Channel 차단작용이 있는 Glibenclamide가 개의 신장기능에 미치는 영향)

  • 고석태;임광남
    • Biomolecules & Therapeutics
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    • v.7 no.3
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    • pp.249-256
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    • 1999
  • Glibenclamide(GLY)(1.0 and 3.0 mg/kg), an ATP-dependent $K^+$ channel blocker, when given into the vein in dogs, produced the diuretic action accompanied with the increase of osmolar clearance($C_{osm}$), urinary excretion of $Na^+$ and $K^+$ ($E_{Na}$, $E_K$), and with the decrease in reabsorption rates for $Na^+$ and $K^+$ in renal tubules ($R_{Na}$, $R_K$), and then ratios of $K^+$ against $Na^+$($K^+$/$Na^+$) were decreased. GLY did not affect mean arterial pressure at any doses used. At a low dose(0.1 mg/kg), GLY injected into a renal artery brought about the diurectic action in both experimental and control kidney, however at a higher dose(0.3 mg/kg), GLY appeared significant diuretic action in the control kidney, but not in experimental kidney and the decrease of glomerular filtration rates(GFR), renal plasma flow(RPF), $E_K$, and the increase in $E_{Na}$. In the control kidney, these changes in renal function exhibited the same aspect as shown in intravenous experiments. In experiments given into carotid artery of GLY(0.5 and 1.5 mg/kg), changes in all renal function included the increase in urine volume were the same pattern as shown in intravenous experiments. The above results suggest that glibenclamide produces diuretic action through central function and the action site of the GLY in kidney is the renal distal tubules in dogs.

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Studies on CFST column to steel beam joints using endplates and long bolts under central column removal

  • Gao, Shan;Yang, Bo;Guo, Lanhui;Xu, Man;Fu, Feng
    • Steel and Composite Structures
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    • v.42 no.2
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    • pp.161-172
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    • 2022
  • In this paper, four specimens of CFST column joints with endplates and long bolts are tested in the scenario of progressive collapse. Flush endplate and extended endplate are both adopted in this study. The experimental results show that increasing the thickness of the endplate could improve the behavior of the joint, but delay the mobilization of catenary action. The thickness of the endplate should not be relatively thick in comparison to the diameter of the bolts, otherwise catenary action would not be mobilized or work effectively. Effective bending deformation of the endplate could help the formation and development of catenary action in the joints. The performance of flexural action in the joint would affect the formation of catenary action in the joint. Extra middle-row bolts set at the endplates and structural components set below the bottom beam flange should be used to enhance the robustness of joints. A special weld access hole between beam and endplate should be adopted to mitigate the chain damage potential of welds. It is suggested that the structural components of joints should be independent of each other to enhance the robustness of joints. Based on the component method, a formula calculating the stiffness coefficient of preloaded long bolts was proposed whose results matched well with the experimental results.

Pharmacological Action of New Wonbang Woohwangchungsimwon Pill on Cerebral Ischemia and Central Nervous System (신원방우황청심원의 뇌허혈 및 중추신경계에 미치는 영향)

  • 조태순;이선미;이은방;조성익;김용기;신대희;박대규
    • YAKHAK HOEJI
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    • v.43 no.2
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    • pp.251-262
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    • 1999
  • In order to investigate pharmacological properties of New Wonbang Woohwangchungsimwon Pill (NSCH) and Wonbang Woohwangchungsimwon Pill (SCH), the effects of NSCH and SCH on cerebral ischemia and central nervous system were compared. Cerebral ischemia insult was performed using unilateral carotid artery occlusion in mongolian gerbils. The histological observations showed preventive effects of NSCH and SCH treatments with ischemia-induced brain damage. The ATP in brain tissue was decreased in vehicle-treated ischemic gerbils. This decrease was prevented by SCH treatment. In contrast to what was inhibited by NSCH and SCH treatments. While NSCH and SCH had no effects on the hexobarbital-induced sleeping time, they prevented the seizures induced by electric shock and strychnine. NSCH and SCH showed sedative effect in rotarod and spontaneous activity test. Furthermore, NSCH and SCH showed anti-stress effect. Our findings suggest that the pharmacological profiles of NSCH on cerebral ischemia and central nervous system are similar to those of SCH.

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