• Journal of Ginseng Research
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• v.16 no.3
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• pp.222-227
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• 1992

Unlike carbohydrats and fats, alcohol is essentially foreign to the body and it is known that the body get rid of it by oxidizing alcohol maily in the liver. Acetaldehyde is produced during ethanol metabolism and is known to be oxidized mainly by aldehyde dehydrogenase (ALDH). ALDH activity was found mainly in the mitochondrial fraction but a significant ALDH activity was also present in microsomal and cytosol fraction. Wistar rats (150~200 g, male) were given freely with 12% ethanol (Control) and/or 12% ethanol containing 0.1% ginseng saponins (Test) instead of water for 6 days and the liver was analyzed. ALDH activities of both control and test group were lower than that of normal group but test AkDH was less inhibited than control. ADH activies of both control and test were slightly higher than that of normal group but our previous data showed that it became gradually steady after prolonged ethanol feeding. MEOS activities of both control and test group were much higher than that of normal group. MEOS enzymes are inducible but the activity of test group was greatly higher than that of control. Ethanol containing [1-i4C] ethanol (5 $\mu$Ci) was injected to the above three groups and 30 min later, the distribution of radioactivity of hepatic lipids was investigated. Radioactivities of hepatic lipids of both control and test group were higher than that of normal group, however, that of test group was much lower than that of control. Analysis of individual lipids showed that phospholipid biosynthesis was significantly impaired and fatty acid and triglycerides biosynthesis were greatly stimulated. However, it was realized that the saponin prevented phospholipid biosynthesis depression and the increase of triglyceride biosynthesis considerably. It seemed that the saponin might stimulate ADH, ALDH and MEOS and the acetaldehyde formed would be removed faster. The excess hydrogen can be shunt more quickly into lipid biosynthesis. Electron microscopic observation showed that the hepatic cell of control group was si gnificantly damaged. Mitochondria were swollen and rough endoplasmic reticulum were dilated, however, hepatocytes of test group were not damaged.

• Journal of Ginseng Research
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• v.22 no.1
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• pp.43-50
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• 1998

We demonstrated in previous study that protopanaxadiol and protopanxatriol saponins show antinociceptive activity in acetic acid induced writhing test and in the second phase (11-40 min) of formalin test but not tail-flick test. To identify further which ginsenoside has antinociceptive activity among various ginseng saponins, we have investigated antinociceptive effects of several ginsenosides using writhing and formalin test. Ginsenoside Rc, Rd, Re, and Rf induced antinociception in writhing test. These four ginsenosides also induced antinociception in the second phase of formalin (11-40 min) test but these ginsenosides showed a slight antinociception in the first phase (010 min) of formalin test except ginsenoside Rf. The antinociceptive effects induced by the ginsenosides were dose dependent and were not blocked by an opioid receptor antagonist, naloxone. The order of antinociceptive potency was Rd > Rc > Re > Rf in the formalin test. However, these ginsenosides did not show any significant analgesic effects in a tail-flick test. These results suggest that ginsenosides such as Rc, Rd, Re, and Rf inhibit tonic pain rather than acute pain induced by noxious heat. These results also indicate that the antinociceptive activity. Induced by ginsenosides may be one of the actions for pharmacological effects of Panax ginseng.

• Journal of Digital Convergence
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• v.17 no.6
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• pp.409-416
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• 2019

The purpose of this study was to investigate the effect of horticulture activity program on self-esteem and school life adaptation of multicultural adolescent. A non-equivalent control group pre-post test design with experimental group (n=39) and control group (n=36) was used. The program was conducted from Jan. 2 to Feb. 28, 2017, and the questionnaire was conducted before and after the program. Collected data was analyzed by SPSS(Ver, 24.0), conducting ${\chi}^2-test$, Fisher's exact test, t-test, paired t-test. There were statistically significant increase in self-esteem(t=2.41, p=.021) and school life adaptation(t=3.85, p=.000) by difference between a pretest and a posttest in the experimental group compared to that in the control group. Therefore, the horticulture activity program for multicultural adolescent have a significant effect for better performance of self-esteem and school life adaptation. Also, It was confirmed that the program used for improving adaptability of multicultural adolescent.

• Asian Journal of Atmospheric Environment
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• v.4 no.3
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• pp.177-188
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• 2010

The use of an activated carbon (AC) system alone has the limitation that the pollutants are not eliminated but only transferred to another phase with the consumed AC becoming hazardous waste itself. Therefore, the present study investigated the feasibility of using a combined system of granular AC (GAC) with S-doped visible-light-induced $TiO_2$ (GAC/S-doped $TiO_2$) to clean monocyclic aromatic hydrocarbons (MAHs) with concentrations at $\leq$ 3 mg $m^{-3}$, using a continuous air-flow reactor. This study conducted three different experiments: an adsorption test of pure GAC and GAC/S-doped $TiO_2$; a long-term adsorptional photocatalytic (AP) activity test of GAC/S-doped $TiO_2$; and an AP activity test of GAC/S-doped $TiO_2$ under different conditions. For the AP activity test, three parameters were evaluated: various weights of GAC/S-doped $TiO_2$ (0.9, 4.4, and 8.9 g); various flow rates (FRs) (0.5, 1 and 2 L $min^{-1}$); and various input concentrations (ICs) of the target MAHs (0.1, 1, 2 and 3 mg $m^{-3}$). The adsorption efficiencies were similar for the pure GAC and GAC/S-doped $TiO_2$ reactors, suggesting that S-doped $TiO_2$ particles on GAC surfaces do not significantly interfere with the adsorption capacity of GAC. Benzene exhibited a clear AP activity, whereas no other target MAHs did. In most cases, the AP efficiencies for the target MAHs did not significantly vary with an increase in weight, thereby suggesting that, under the weight range tested in this study, the weights or FRs are not important parameters for AP efficiency. However, ICs did influence the AP efficiencies.

• The Journal of the Korea Contents Association
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• v.9 no.10
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• pp.227-237
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• 2009

The purpose of this study was to determine the relationships with physical activity and depression and body function in elderly. Methods: Total 79 elderly(over 65years old) were participated in this study. A Korean Form of Geriatric Depression Scale(KGDS), Mini-Mental State Examination(MMSE-K), Jebsen hand function test, dynamometer, five time sit-up test were used to measure the depression and cognition, body function(hand function, grasp power, lower extremity strength). Results: Physical activity participated group shows higher in the body function and lower in the depression than non participated group. Conclusion: The findings of this study indicate that the physical activity is helpful to indicate and manage the depression and body function in elderly.

• Korean Journal of Microbiology
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• v.53 no.3
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• pp.193-199
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• 2017

This study was aimed to evaluate the antimicrobial activity of Penicillium purpurogenum ED76 on several clinically important microorganisms. The endophytic fungus P. purpurogenum ED76 was previously isolated from Swietenia macrophylla leaf. The antimicrobial efficacy of P. purpurogenum ED76 dichloromethane extract was determined via disc diffusion and broth microdilution assay. A kill curve study was conducted and the morphology of extract treated bacterial cells were viewed under scanning electron microscope. The dichloromethane extract showed significant inhibitory activity on 4 test bacteria and 2 test yeasts. The minimal inhibitory concentration of the extract ranged from 125 to $1,000{\mu}g/ml$, which indicates the different susceptibility levels of the test microorganisms to the fungal extract. The kill curve study has revealed a concentration-dependent inhibition for all test microorganisms. With the increase of the extract concentration, the microbial growth was significantly reduced. The scanning electron micrograph of dichloromethane extract-treated Staphylococcus aureus cells showed the total damage of the cells. The cell wall invagination of the bacterial cells also indicates the loss of cellular materials and metabolic activity. The gas chromatography mass spectrometry analysis of the extract also showed that the major compound was stigmasterol, which constitutes 45.30% of the total area. The dichloromethane extract of P. purpurogenum ED76 exhibited significant inhibitory activity on several clinically important bacteria and yeasts. The study proposed a possible mode of action that the extract cause significant damage to the morphology of S. aureus cells.

• Biomedical Science Letters
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• v.8 no.3
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• pp.173-177
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• 2002

To investigate the fibrinolytic activities of the Korean basidiomycetes, the Extracts of 50 wild mushrooms were tested for their fibrinolytic activites. Extract from Tricholoma sejunctum showed 175% increased activity to that of plasmin 1.0 U/ml. Marasmius siccus showed 54% of activity, and Laetiporus sulphureus var. miniatus and Macrolepiota procera, 43% and 26% activities, respectively to that of plasmin. But, Cystoderma amianthinum, Lepiota sp., Coprinus sp., Lycoperdon sp. were less than 10% of plasmin activity.

• Archives of Pharmacal Research
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• v.17 no.1
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• pp.31-35
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• 1994

For comparing with flavones/flavonols, isoflavonoids isolated from Pueraria radix and chemically synthesized from biochanin A were evaluated for the antiinflammatory activity using mouse ear edema test, Isoflavonoids such as daildzein and puerarin hsowed the significant antiinflammatory activity at a dose of 2 mg/mouse, although their activity was generally less than that of flavones/flavonols. 7-O-Substitution of biochanin A was not facorable for the antiinflammatory activity.

• JSTS:Journal of Semiconductor Technology and Science
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• v.14 no.5
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• pp.640-648
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• 2014

Excessive power dissipation is one of the major issues in the testing of VLSI systems. Many techniques are proposed for scan test, but there are not so many for logic BIST because of its unmanageable randomness. This paper presents a novel low switching activity BIST scheme that reduces toggle frequency in the majority of scan chain inputs while allowing a small portion of scan chains to receive pseudorandom test data. Reducing toggle frequency in the scan chain inputs can reduce test power but may result in fault coverage loss. Allowing a small portion of scan chains to receive pseudorandom test data can make better uniform distribution of 0 and 1 and improve test effectiveness significantly. When compared with existing methods, experimental results on larger benchmark circuits of ISCAS'89 show that the proposed strategy can not only reduce significantly switching activity in circuits under test but also achieve high fault coverage.

• Journal of the Korea Society of Computer and Information
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• v.21 no.5
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• pp.135-139
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• 2016

Scrophularia ningpoensis hemsl has been traditionally used in China and Vietnam for treatment of bacteria, atopy, pimple, tonsillitis, angina and encephalitis for a long time. The main objectives of this study were to evaluate the antibacterial activity of the Scrophularia ningpoensis hemsl extract on biofilm formation of Klebsiella pneumoniae. Antibacterial activity was conducted using disc diffusion assay and minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC) were determined using the broth micro dilution method in accordance to Clinical and Laboratory Standards Institute guidelines(CLSI). Furthermore, cytotoxicity on L929 were assessed using animal cell culture for the proliferation test(MTT cell assay) and the biofilm forming capacity of the K. pneumoniae were determined using the colony forming unit (CFU) assay. The extract exhibited considerable antibacterial activity. K. pneumoniae was susceptible to the extract with the MIC and MBC of 0.1875 and $1.5mg/m{\ell}$ respectively. Cytoxicity test in L929 showed no sign of toxicity at the concentration of $0.75mg/m{\ell}$ and at the same concentration the extract caused inhibition of bacterial biofilm formation. The extract of Scrophularia ningpoensis hemsl possesses an in vitro antibacterial antibiofilm activities against K. pneumoniae, with no sign of cytoxicity on L929.