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노인의 약물 지식 정도와 약물 사용실태 및 약물 오·남용 행위
구예나,김민경,김진윤,배윤,서민혜,정은혜,지수현,차미나,Choi, Jenny 이화여자대학교 간호과학대학 2013 이화간호학회지 Vol.- No.47
Purpose: The purpose of this study was to provide basic data for use in the upgrade of healthcare for the elderly and to provide guidance toward educating the elderly in the proper use of medications by determining the level of drug knowledge, current use, and adherence by the elderly. Method: The participants of this study were selected using the convenient sampling method. Participants of this study comprised of 160 elderly who were aged 65 or older, who were participants to the elderly municipal welfare center in Seoul. The instrument used for this study was a structured questionnaire (Han,2011). Collected data were analyzed using the SPSS20.0 program with descriptive statistics, t-test, ANOVA, and Pearson’s correlation coefficient. Result: The mean score for drug knowledge was 7.6±2.9 and drug misuse was 4.7±2.8. There were significant differences about drug knowledge according to the following: level of education (F=8.053 p=.000), and spouse (t=2.14 p=.034). There were significant differences between drug misuse and monthly income (F=2.167 p=.040). There was no statistically significant relationship between drug knowledge and drug misuse (r=-.087, p=.271). Conclusion: A replication study based on broader region and in-depth research is needed. The development of the customized education protocol considering various levels of education, income, spouse and physical condition are needed. Further research is suggested to find out the status of medication education for the elderly by nurses.
Jung, W. H.,Kang, D.‐,H.,Han, J. Y.,Jang, J. H.,Gu, B.‐,M.,Choi, J.‐,S.,Jung, M. H.,Choi, C.‐,H.,Kwon, J. S. Blackwell Publishing Ltd 2011 Acta psychiatrica Scandinavica Vol.123 No.5
<P>Jung WH, Kang D‐H, Han JY, Jang JH, Gu B‐M, Choi J‐S, Jung MH, Choi C‐H, Kwon JS. Aberrant ventral striatal responses during incentive processing in unmedicated patients with obsessive–compulsive disorder.</P><P><B>Objective: </B> Obsessive–compulsive disorder (OCD) is characterized by the dysfunction of control and reward mechanisms. However, only few neuroimaging studies of OCD have examined the reward processing. We examined the neural responses during incentive processing in OCD.</P><P><B>Method: </B> Twenty unmedicated patients with OCD and 20 age‐, sex‐, and IQ‐matched healthy controls underwent functional magnetic resonance imaging while performing a modified monetary incentive delay task.</P><P><B>Results: </B> Compared with controls, patients with OCD showed increased ventral striatal activation in the no‐loss minus loss outcome contrast and a significant positive correlation between the ventral striatal activation and compulsion symptom severity. In addition, patients with OCD showed increased activations in the frontostriatal regions in the gain minus no‐gain outcomes contrast. During loss anticipation, patients with OCD showed less activations in the lateral prefrontal and inferior parietal cortices. However, during gain anticipation, patients with OCD and healthy controls did not differ in the ventral striatal activation.</P><P><B>Conclusion: </B> These findings provide neural evidence for altered incentive processing in unmedicated patients with OCD, suggesting an elevated sensitivity to negatively affect stimuli as well as dysfunction of the ventral striatum.</P>
Metal-polymer Joining Method with Laser Structuring to Enhance Cross-tension Strength
S. Chey(최석영),J. Y. Choi(최준영),G. Y. Kim(김근영),J. Y. Kim(김지엽),J. Lee(이중혁),A. K. Han(한경원),D. H. Kim(김도회),J. Jeong(정준영),S. J. Hong(홍석주),N. R. Yoon(윤나래),J. H. Hwang(황준호),H. D. Kim(김현덕),Y. S. Gu(구윤식),J. W. C Korean Society for Precision Engineering 2023 한국정밀공학회 학술발표대회 논문집 Vol.2023 No.11
Gu, C.,Cui, Y.,Wang, L.,Sheng, E.,Shim, J.J.,Huang, J. Elsevier Sequoia 2017 Sensors and actuators. B, Chemical Vol.241 No.-
<P>Porous NiO/SnO2 microspheres and microcubes were obtained using a facile chemical solution route combined with a subsequent calcination process. The morphologies and crystal structures of the products were comprehensively characterized via X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, thermogravimetric-differential thermal analysis, and Brunauer-Emmett-Teller N-2 adsorption-desorption analyses. The process of inducing porosity began with the NiSn(OH)(6) precursors formed by the co-precipitation of the metal ions from the aqueous solution. Thermal decomposition of the precursors led to an intimate mixture of cubic phase NiO and tetragonal phase SnO2 and formed the porous NiO/SnO2 microspheres and microcubes. The gas-sensing properties of the as-prepared porous NiO/SnO2 microspheres and microcubes for toxic volatile organic compounds (VOCs), such as formaldehyde, ethanol, benzene, methanol, acetone, and toluene, were investigated. Compared with other VOCs gases, the porous NiO/SnO2 microsphere and microcube sensors exhibited a high response to formaldehyde. As for the porous NiO/SnO2 microsphere sensor, the detection limit of formaldehyde was approximately 0.13 ppm (signal-to-noise ratio, S/N = 3). The relationship between the gas-sensing performance and the microstructure of the porous NiO/SnO2 micro/nanomaterials was also discussed. (C) 2016 Elsevier B.V. All rights reserved.</P>
Y.G. Xiao,M.H. Tang,Y. Xiong,J. C. Lin,C.P. Cheng,B. Jiang,H.Q. Cai,Z.H. Tang,X.S. Lv,X.C. Gu,Y.C. Zhou 한국물리학회 2012 Current Applied Physics Vol.12 No.6
The surface potential and drain current of double-gate metal-ferroelectric-insulator-semiconductor (MFIS) field-effect transistor were investigated by using the ferroelectric negative capacitance. The derived results demonstrated that the up-converted semiconductor surface potential and low subthreshold swing S = 34 (<60 mV/dec) can be realized with appropriate thicknesses of ferroelectric thin film and insulator layer at room temperature. What’s more, a reduction gate voltage about 260 mV can be reached if the ON-state current is fixed to 600 mA/mm. It is expected that the derived results can offer useful guidelines for the application of low power dissipation in ongoing scaling of FETs.
Gu, G.J.,Lim, S.J.,Ahn, S.i.,Lee, S.C.,Chang, Y.T.,Choi, T.H.,Kim, B.S.,Eom, Y.B.,Lee, N.K.,Youn, H.S. North-Holland ; Elsevier Science Ltd 2014 european journal of pharmacology Vol.742 No.-
The pathophysiological processes of inflammation can lead to a host of diseases, such as periodontitis, atherosclerosis, rheumatoid arthritis, and even cancer. The dysregulated inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) activation play important roles in the development of certain inflammatory diseases. Here, we investigated the effects of CDr10b which is originally developed for a microglia staining probe on inflammation, by modulating NF-κB activation and iNOS and COX-2 expression induced by lipopolysaccharide (LPS) in murine macrophages. The CDr10b suppressed NF-κB activation and iNOS and COX-2 expression induced by LPS. All the results suggest that CDr10b is a promising novel agent for the treatment of inflammatory diseases.
Gu, M. Y.,Kim, J.,Yang, H. O. Springer Science + Business Media 2016 Neurochem Res Vol.41 No.6
<P>Justicidin A is a structurally defined arylnaphthalide lignan, which has been shown anti-cancer activity; however, the neuroprotective effect of justicidin A is still untested. In this study, we investigated the action of justicidin A on amyloid beta (A beta)(25-35)-induced neuronal cell death via inhibition of the hyperphosphorylation of tau and induction of autophagy in SH-SY5Y cells. Pretreatment with justicidin A significantly elevated cell viability in cells treated with A beta(25-35). Western blot data demonstrated that justicidin A inhibited the A beta(25-35)-induced up-regulation the levels of hyperphosphorylation of tau in SH-SY5Y cells. In addition, treatment with justicidin A significantly induced autophagy as measured by the increasing LC3 II/I ratio, an important autophagy marker. These studies showed that justicidin A inhibited activity of glycogen synthase kinase-3beta (GSK-3 beta), which is an important kinase in up-stream signaling pathways; inhibited hyperphosphorylation of tau in AD; and enhanced activity of AMP-activated protein kinase (AMPK), which is the key molecule for both hyperphosphorylation of tau and induction of autophagy. These data provide the first evidence that justicidin A protects SH-SY5Y cells from A beta(25-35)-induced neuronal cell death through inhibition of hyperphosphorylation of tau and induction of autophagy via regulation the activity of GSK-3 beta and AMPK, and they also provide some insights into the relationship between tau protein hyperphosphorylation and autophagy. Thus, we conclude that justicidin A may have a potential role for neuroprotection and, therefore, may be used as a therapeutic agent for AD.</P>
Y.-M.Chae,J.-Y.Gu,J.-S.Gho,H.-S.Mok,G.-H.Choe,C.-Y.Won,G.-S. Kim 전력전자학회 1998 ICPE(ISPE)논문집 Vol.- No.-
According to the adoption of inverter circuit topology for welding machine area, the improvement of welding performance can be achieved However conventional CO2 inverter arc welding machine uses the constant voltage characteristics So the metal transfer is performed under unoptimum condition in the sence of spatter generation<br/> In this paper the new control algorithm is proposed for welding machine, which is the instantaneous output current control method using single chip microprocessor But the optimum waveform of welding current is still uncertain, as a first step for figuring out the optimised waveforms, this study was performed And as a result of performance test of the proposed system, it was demonstrated that all of the waveform variation parameter could be set individually and the generated spatter is reduced compared to conventional inverter arc welding machine.<br/>