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( Shu-yi Chen ),( Seung-kyu Kim ),( Ki-hyun Kim ),( In-sil Lee ),( Gak Hwangbo ) 대한물리의학회 2016 대한물리의학회지 Vol.11 No.4
PURPOSE: The purpose of this study was to investigate effects of Horse riding simulator exercise on pain, dysfunction and dynamic balance in adults with nonspecific chronic low back pain. METHODS: In this study, total 19 college students usually complain of low back pain who were randomly divided into the horse riding simulator exercise group (n=10), lumbar strengthening exercise group (n=9) were recruited. Each group carried out for 30 minutes exercise three times a week for 4 weeks. Horse riding simulator exercise group carried out 15 minutes horse riding simulator exercise and 15 minutes lumbar strengthening exercise. Lumbar strengthening exercise group carried out 30 minutes lumbar strengthening exercise. Visual analogue scale (VAS) were measured for evaluation back pain. Korean oswestry disability index (KODI) were measured for dysfunction. Limits of stability (LOS) were measured for dynamic balance. RESULTS: VAS, KODI, LOS results showed a significant change within both horse riding simulator exercise group, lumbar strengthening exercise group. CONCLUSION: Present study suggested that the horse riding simulator exercise can improve back pain, dysfunction, dynamic balance. Horse riding simulator exercise provides more convenience, interest and motivation than conversional therapy and it could be a possible approach to adults with nonspecific chronic low back pain.
Shu Yi Chu,Ji Bo Xiao,Guang Ming Tian,Ming Hung Wongb 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.5
Preparation of activated carbon from Thalia dealbata was carried out. The T. dealbata-derived activated carbon (TDAC) was characterized by BET, SEM and FTIR. The potential of TDAC to remove reactive brilliant blue from aqueous solutions was investigated under varying conditions of pH, adsorbent dosage, contact time, initial dye concentration, and temperature. Adsorption equilibrium, and kinetics were further studied. Adsorption was favored under acid conditions, and the process attained equilibrium in 30 min. The pseudo-second-order model could best describe the adsorption kinetics. The equilibrium data fitted well with the Langmuir and Freundlich models, and the maximum capacity was 555 mg g-1.
Effect of deposition current density on the linear actuation behaviour of PPy(CF₃SO₃) films
Shu Yi Chu,Hui Peng,Paul A. Kilmartin,Graham A. Bowmaker,Ralph P. Cooney 한국물리학회 2008 Current Applied Physics Vol.8 No.3,4
Free-standing lms of PPy(CF₃SO₃) were galvanostatically electropolymerised in propylene carbonate on a stainless steel electrodeusing dierent deposition current densities. The actuation performance of these lms in an aqueous 1.0 M NaPF6 electrolyte was inves-linear strain of the lms decreased with a higher deposition current density. X-ray photoelectron spectroscopy was used to estimate theamount of ‘disordered carbon’, carbonyl carbon and the doping level of the lms. These values were related to the strain obtained fromECMD measurements. SEM images revealed a denser lm morphology for lms deposited using a lower current density.
Shu-Tong Chang,Shu-Hui Liao,Wei-Ching Wang,Chung-Yi Lin,Jun-Wei Fan 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.2
The physical mechanisms of electron mobility and balistic drain curent enhancement by stress are investigated. From modified higher-order k·p band calculations, the stress-induced split of the conduction band edge and the effective mass change are quantitatively evaluated. It was experimentaly and theoreticaly demonstrated that the energy surface of 2-fold valeys in Si NMOSFETs on a (001) wafers is especially warped due to a uniaxial [110] stress, resulting in a lighter transverse effective mass of the 2-fold valleys parallel to the stress. The physical reasons for the warped subband structure and the abnormal mobility enhancement caused by the uniaxial stres are investigated. The rates of variation of the experimental electron mobility in NMOSFETs on wafers with (01) orientations undera <110> uniaxial stress as a function of the channel direction is theoretically studied. The limits of electron mobility enhancement and the effectiveness of stress enginering in enhancing the balistic drain current of NMOSFETs are also discussed.
Shu Yi Wang,Wei Sen Zhang,Chao Qiang Jiang,Ya Li Jin,Tong Zhu,Feng Zhu,Lin Xu 대한당뇨병학회 2024 Diabetes and Metabolism Journal Vol.48 No.1
Background: Abnormal glucose metabolism is a risk factor for colorectal cancer (CRC). However, association of glycosylated hemoglobin (HbA1c) with CRC risk remains under-reported. We examined the association between glycemic indicators (HbA1c, fasting plasma glucose, fasting insulin, 2-hour glucose, 2-hour insulin, and homeostasis model of risk assessment-insulin resistance index) and CRC risk using prospective analysis and meta-analysis.Methods: Participants (<i>n</i>=1,915) from the Guangzhou Biobank Cohort Study-Cardiovascular Disease Substudy were included. CRC events were identified through record linkage. Cox regression was used to assess the associations of glycemic indicators with CRC risk. A meta-analysis was performed to investigate the association between HbA1c and CRC risk.Results: During an average of 12.9 years follow-up (standard deviation, 2.8), 42 incident CRC cases occurred. After adjusting for potential confounders, the hazard ratio (95% confidence interval [CI]) of CRC for per % increment in HbA1c was 1.28 (95% CI, 1.01 to 1.63) in overall population, 1.51 (95% CI, 1.13 to 2.02) in women and 1.06 (95% CI, 0.68 to 1.68) in men. No significant association of other measures of glycemic indicators and baseline diabetes with CRC risk was found. Meta-analyses of 523,857 participants including our results showed that per % increment of HbA1c was associated with 13% higher risk of CRC, with the pooled risk ratio being 1.13 (95% CI, 1.01 to 1.27). Subgroupanalyses found stronger associations in women, colon cancer, Asians, and case-control studies.Conclusion: Higher HbA1c was a significant predictor of CRC in the general population. Our findings shed light on the pathology of glucose metabolism and CRC, which warrants more in-depth investigation.
Shu-ying Yi,Jian Liu 한국식물학회 2009 Journal of Plant Biology Vol.52 No.6
We previously cloned and analyzed the 1,893-bp promoter region (−1,915 to −23) of the tomato (Lycopersicon esculentum) Lehsp23.8 gene, whose expression is induced by treatment with high or low temperatures, heavy metal, or abscisic acid (ABA). In our present work, we examined how this expression is regulated. A comprehensive quantitative promoter deletion and base-substitution analysis was conducted under various environmental conditions. The proximal region (−565 to −23 bp) of the Lehsp23.8 promoter harbors cis-regulatory elements that conferred high levels of heat-induced expression in transgenic tobacco. Mutation of the five proximal HSEs (HSE1 to 5) of that promoter led to an absence of heat inducibility. The AT-rich regions between −255 bp and −565 bp (AT-rich1 to 4) in the promoter might serve as enhancers for such heat-induced expression. Deletion and HSE mutation analysis indicated that other cis-acting elements also function in response to low temperature, heavy metal, and ABA and that HSE1 to 5 act at least as cis-acting elements in multiple-stress responses of Lehsp23.8. These results reveal that those five proximal HSEs and AT-rich regions function interdependently in the expression of Lehsp23.8 in response to non-heat stresses. Furthermore, the putative elements CRT/DRE, AP-1, and ABRE in that promoter are not required for multiple-stress induction.
Studying the Strain Effect on Silicon Atomic Wires
Shu-Tong Chang,Shu-Hui Liao,Hsiao-Chun Huang,Chee-Wee Liu,Chung-Yi Lin 한국물리학회 2008 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.53 No.6
The transport properties of a Si3 atomic wire system, which is formed by a Si3 cluster connected to two lithium electrodes with bias applied, is studied using the simulator Virtual NanoLab that is constructed based on the non-equilibrium Green’s function (NEGF) scheme. We investigated the Si3 atomic wire system under three strain conditions (tensile, compressive and shear). Different trends in the I-V characteristics are observed for the three cases at various applied biases. The transmission spectrum T(E, Vb), as a function of energy and applied biases, are analyzed. The interactions among eigenstates of the molecular projected self-consistent Hamiltonian (MPSH) strongly affect the transport properties of the system.
Tsai Yi-Chih,Chen Su-Liang,Peng Shu-Ling,Tsai Ya-Li,Chang Zuong-Ming,Chang Vincent Hung-Shu,Ch’ang Hui-Ju 생화학분자생물학회 2021 Experimental and molecular medicine Vol.53 No.-
Krüppel-like factor 10 (KLF10) is a tumor suppressor in multiple cancers. In a murine model of spontaneous pancreatic adenocarcinoma (PDAC), additional KLF10 depletion accelerated distant metastasis. However, Klf10 knockout mice, which suffer from metabolic disorders, do not develop malignancy. The mechanisms of KLF10 in PDAC progression deserve further exploration. KLF10-depleted and KLF10-overexpressing PDAC cells were established to measure epithelial-mesenchymal transition (EMT), glycolysis, and migration ability. A murine model was established to evaluate the benefit of genetic or pharmacological manipulation in KLF10-depleted PDAC cells (PDACshKLF10). Correlations of KLF10 deficiency with rapid metastasis, elevated EMT, and glycolysis were demonstrated in resected PDAC tissues, in vitro assays, and murine models. We identified sirtuin 6 (SIRT6) as an essential mediator of KLF10 that modulates EMT and glucose homeostasis. Overexpressing SIRT6 reversed the migratory and glycolytic phenotypes of PDACshKLF10 cells. Linoleic acid, a polyunsaturated essential fatty acid, upregulated SIRT6 and prolonged the survival of mice injected with PDACshKLF10. Modulating HIF1α and NFκB revealed that EMT and glycolysis in PDAC cells were coordinately regulated upstream by KLF10/SIRT6 signaling. Our study demonstrated a novel KLF10/SIRT6 pathway that modulated EMT and glycolysis coordinately via NFκB and HIF1α. Activation of KLF10/SIRT6 signaling ameliorated the distant progression of PDAC. Clinical Trial Registration: ClinicalTrials.gov. identifier: NCT01666184.