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Yu-Chen Lin,Kuang-Ren Chung,Jenn-Wen Huang 한국식물병리학회 2020 Plant Pathology Journal Vol.36 No.2
Two lactic acid bacteria (LAB) designated J02 and J13 were recovered from fermented vegetables based on their ability to suppress soft rot disease caused by Pectobacterium carotovorum subsp. carotovorum (Pcc) on radish. J02 and J13 were identified as Lactobacillus pentosus and Leuconostoc fallax, respectively. The abil- ity of J02 and J13 to suppress plant diseases is highly dependent on chitosan. LAB alone has no effect and chitosan alone has only a moderate effect on disease reduction. However, J02 or J13 broth cultures plus chitosan display a strong inhibitory effect against plant pathogens and significantly reduces disease severity. LAB strains after being cultured in fish surimi (agricul- tural waste) and glycerol or sucrose-containing medium and mixed with chitosan, reduce three cruciferous veg- etable diseases, including cabbage black spot caused by Alternaria brassicicola, black rot caused by Xanthomon- as campestris pv. campestris, and soft rot caused by Pcc. Experimental trials reveal that multiple applications are more effective than a single application. In-vitro as- says also reveal the J02/chitosan mixture is antagonistic against Colletotrichum higginsianum, Sclerotium rolf- sii, and Fusarium oxysporum f. sp. rapae, indicating a broad-spectrum activity of LAB/chitosan. Overall, our results indicate that a synergistic combination of LAB and chitosan offers a promising approach to biocontrol.
Post-Acute Care as a Key Component in a Healthcare System for Older Adults
Yu-Chun Wang,Ming-Yueh Chou,Chih-Kuang Liang,Li-Ning Peng,Liang-Kung Chen,Ching-Hui Loh 대한노인병학회 2019 Annals of geriatric medicine and research Vol.23 No.2
Older adults often experience functional decline following acute medical care. This func-tional decline may lead to permanent disability, which will increase the burden on the medical and long-term care systems, families, and society as a whole. Post-acute care aims to promote the functional recovery of older adults, prevent unnecessary hospital readmission, and avoid premature admission to a long-term care facility. Research has shown that post-acute care is a cost-effective service model, with both the hospital-at-home and community hospital post-acute care models being highly effective. This paper describes the post-acute care models of the United States and the United Kingdom and uses the example of Taiwan’s highly effective post-acute care system to explain the bene-fits and importance of post-acute care. In the face of rapid demographic aging and smaller household size, a post-acute care system can lower medical costs and improve the health of older adults after hospitalization.
Kuang, Dan,Chen, Wei,Song, Yue-Zhang,Yu, Yan-Yan,Zhang, Dong-Ying,Wu, Lang,Tang, Jie Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.16
Background: Previous epidemiological studies have suggested a potential role of the $HSPA1B{\pm}1267A/G$ polymorphism in risk of developing cancer. However, the results were inconsistent. Therefore, we performed this meta-analysis to summarize the possible association with cancer risk. Materials and Methods: We retrieved relevant articles from PubMed, EMBASE, ISI Web of Science, Chinese Biomedical Literature and Chinese National Knowledge Infrastructure. Studies were selected using specific criteria. Odds ratios (ORs) with 95% confidence intervals (CIs) were calculated to assess those associations. All analyses were performed using STATA software. Results: Fourteen case-control studies, including 1, 834 cancer cases and 2, 028 controls were included in this meta-analysis. Overall, the results indicated that the G allele of HSPA1B gene ${\pm}1267A/G$ was significantly associated with an increased cancer risk in all genetic models (G vs A: OR=1.51, 95%CI 1.17-1.95, p=0.001; GG vs AA: OR=2.93, 95%CI 1.50-5.74, p=0.002; AG vs AA: OR=1.48, 95%CI 1.10-1.98, p=0.009; GG/AG vs AA: OR=1.69, 95%CI 1.22-2.33, p=0.001; GG vs AG/AA: OR=2.31, 95%CI 1.24-4.32, p=0.009). In the subgroup analysis stratified by ethnicity, a significant association was identified in Caucasians (G vs A: OR=1.35, 95%CI 1.08-1.69, p=0.008; GG/AG vs AA: OR=1.36, 95%CI 1.09-1.70, p=0.007), but not in Asians. In the stratified analysis by cancer types, individuals with the G allele showed an increased risk of hepatocellular carcinoma compared with carriers of the A allele (OR=2.40, 95%CI 1.47-3.91, p<0.001). Inversely, individuals with the GG genotype showed a decreased risk of gastric cancer compared with carriers of the AG/GG genotypes (GG vs AG/AA: OR=0.39, 95%CI 0.20-0.70, p=0.007). Conclusions: This meta-analysis suggests associations between the HSPA1B ${\pm}1267A/G$ polymorphism and risk of cancer. However, this association might be Caucasian-specific and the G allele of this polymorphism probably increases risk of hepatocellular carcinoma while decreasing risk of gastric cancer. Further well-designed studies based on larger sample sizes are needed to validate these findings.
Enhanced Phase Relaxation in a Hybrid Ferromagnet/Semiconductor System
Kuang Yao Chen,Chun-Kai Yang,N. Aoki,Y. Ochiai,Y. Ujiie,K. A. Cheng,Li-Hung Lin,C. F. Huang,Yu-Ru Li,Yen Shung Tseng,Po-Tsun Lin,Jau-Yang Wu,Sheng-Di Lin,C.-T. Liang 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.55 No.1
Hybrid ferromagnet/semiconductor systems have been the focus of considerable attention because of the transport properties of two-dimensional electron systems and their potential applications to magnetic storage and sensing devices. We use the weak localization effect to probe the dephasing mechanism at low temperatures. In our study, the zero-temperature phase-relaxation rate can be enhanced in a hybrid ferromagnet/semiconductor system, which may be due to the inhomogeneous magnetic field emanating from the Ni film. The result may improve understanding of the issue of zero-temperature dephasing in disordered systems. Hybrid ferromagnet/semiconductor systems have been the focus of considerable attention because of the transport properties of two-dimensional electron systems and their potential applications to magnetic storage and sensing devices. We use the weak localization effect to probe the dephasing mechanism at low temperatures. In our study, the zero-temperature phase-relaxation rate can be enhanced in a hybrid ferromagnet/semiconductor system, which may be due to the inhomogeneous magnetic field emanating from the Ni film. The result may improve understanding of the issue of zero-temperature dephasing in disordered systems.
Central Pontine Myelinolysis in a Normonatremic Patient with Depression
Yu Chia Liu,Yen Kuang Yang,Po See Chen,Wei Hung Chang 대한정신약물학회 2021 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.19 No.3
A 76-year-old male presented with a recurrent depressive episode, an unsteady gait and cognitive impairment. Extensive blood tests, including hemogram, biochemical tests, folic acid, vitamin B12, and thyroid hormone, showed normal results. With the exception of the unsteady gait, neurological examination was negative. Brian magnetic resonance imaging (MRI) showed the typical feature of central pontine myelinolysis (CPM); however, there was no history of alcoholism, liver transplantation, malnutrition or rapid correction of hyponatremia. The patient had taken venlafaxine to treat major depressive disorder for more than 20 years. After discontinuation of venlafaxine, the unsteady gait gradually resolved, and subsequent MRI revealed reduction of the lesions over 6 months. We discuss herein the possible correlation between chronic use of venlafaxine and CPM.
Yu Xiehua,Deng Linmao,Zhang Xiaoyun,Chen Meilong,Kuang Fengfei,Wang Yuan 한국정밀공학회 2018 International Journal of Precision Engineering and Vol.19 No.3
Accurate flow behaviors characterization plays a decisive role in the design and optimization of hot plastic forming processes with finite element method (FEM). In this study, the hot compression tests at elevated temperature were performed on a Gleeble 3500 thermo-physical test machine to acquire the true stress-strain data of GH4169 superalloy. Subsequently, an artificial neural network (ANN) with back-propagation algorithm was employed to learn the experimental true stress-strain data and then predict the constitutive relationships outside experimental conditions. It was revealed that the ANN can precisely track and predict the flow behaviors of GH4169 superalloy. The optimally-constructed and well-trained ANN model was written into a general finite element (FE) software platform via a user defined material subroutine programmed in Fortran language. Finally, the simulated hot compression tests with the FE model implanted ANN model were conducted. The intercomparisons between the experimental and simulated stroke-load curves revealed that integration of FEM with ANN is a feasible approach to conduct quality numerical computation for the varied hot plastic forming processes.
Probing Insulator-quantum Hall Transitions by Current Heating
Kuang Yao Chen,N. Aoki,Y. Ochiai,K. A. Cheng,Li-Hung Lin,C. F. Huang,Yu-Ru Li,Yen Shung Tseng,Chun-Kai Yang,Po-Tsun Lin,Jau-Yang Wu,Sheng-Di Lin,C.-T. Liang 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.55 No.1
We report a magneto-transport study on the two-dimensional electron system (2DES) in an Al- GaAs/GaAs heterostructure. The direct insulator to quantum Hall conductor transition is observed at low temperatures by increasing the magnetic field B perpendicular to the 2DES. We can also observe the transition by varying the current I and find a relation Te~Ia between electron effective temperature Te and current. Here, a denotes the exponent for the power law. The exponent a, however, can have different values on the two sides of the transition point, which indicates different inelastic scattering mechanisms in the low-field insulator and in the quantum Hall conductor. We report a magneto-transport study on the two-dimensional electron system (2DES) in an Al- GaAs/GaAs heterostructure. The direct insulator to quantum Hall conductor transition is observed at low temperatures by increasing the magnetic field B perpendicular to the 2DES. We can also observe the transition by varying the current I and find a relation Te~Ia between electron effective temperature Te and current. Here, a denotes the exponent for the power law. The exponent a, however, can have different values on the two sides of the transition point, which indicates different inelastic scattering mechanisms in the low-field insulator and in the quantum Hall conductor.
Max-throughput interference avoidance mechanism for indoor self-organizing small cell networks
Kuang-Hsun Lin,Cho-Hsin Tsai,Jen-Wei Chang,Yu-Chieh Chen,Hung-Yu Wei,Fu-Ming Yeh 한국통신학회 2017 ICT Express Vol.3 No.3
Since mobile traffic has been growing recently, the deployment of indoor small cells has become an attractive solution to enhance coverage. However, the increasing density of cells makes inter-cell interference more considerable. In this paper, we propose a max-throughput Interference Avoidance (MTIA) centralized algorithm to improve the system’s throughput. Based on signaling and reports, a central controller connected to each base station can properly turn off base stations that may induce a relatively strong interference, and thus increase SINR. We implemented the MTIA algorithm in an LTE TDD network simulation and showed that MTIA effectively reduces inter-cell interference and improves the system’s throughput.