19 results on '"Chen, Bo-Hong"'
Search Results
2. Development of machine learning prognostic models for overall survival of prostate cancer patients with lymph node-positive
- Author
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Peng, Zi-He, Tian, Juan-Hua, Chen, Bo-Hong, Zhou, Hai-Bin, Bi, Hang, He, Min-Xin, Li, Ming-Rui, Zheng, Xin-Yu, Wang, Ya-Wen, Chong, Tie, and Li, Zhao-Lun
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- 2023
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3. Deep Learning-Based Surgical Treatment Recommendation and Nonsurgical Prognosis Status Classification for Scaphoid Fractures by Automated X-ray Image Recognition.
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Su, Ja-Hwung, Tung, Yu-Cheng, Liao, Yi-Wen, Wang, Hung-Yu, Chen, Bo-Hong, Chang, Ching-Di, Cheng, Yu-Fan, Chang, Wan-Ching, and Chin, Chu-Yu
- Subjects
IMAGE recognition (Computer vision) ,X-ray imaging ,PROGNOSIS ,DEEP learning ,DATA augmentation ,TUMOR classification - Abstract
Biomedical information retrieval for diagnosis, treatment and prognosis has been studied for a long time. In particular, image recognition using deep learning has been shown to be very effective for cancers and diseases. In these fields, scaphoid fracture recognition is a hot topic because the appearance of scaphoid fractures is not easy to detect. Although there have been a number of recent studies on this topic, no studies focused their attention on surgical treatment recommendations and nonsurgical prognosis status classification. Indeed, a successful treatment recommendation will assist the doctor in selecting an effective treatment, and the prognosis status classification will help a radiologist recognize the image more efficiently. For these purposes, in this paper, we propose potential solutions through a comprehensive empirical study assessing the effectiveness of recent deep learning techniques on surgical treatment recommendation and nonsurgical prognosis status classification. In the proposed system, the scaphoid is firstly segmented from an unknown X-ray image. Next, for surgical treatment recommendation, the fractures are further filtered and recognized. According to the recognition result, the surgical treatment recommendation is generated. Finally, even without sufficient fracture information, the doctor can still make an effective decision to opt for surgery or not. Moreover, for nonsurgical patients, the current prognosis status of avascular necrosis, non-union and union can be classified. The related experimental results made using a real dataset reveal that the surgical treatment recommendation reached 80% and 86% in accuracy and AUC (Area Under the Curve), respectively, while the nonsurgical prognosis status classification reached 91% and 96%, respectively. Further, the methods using transfer learning and data augmentation can bring out obvious improvements, which, on average, reached 21.9%, 28.9% and 5.6%, 7.8% for surgical treatment recommendations and nonsurgical prognosis image classification, respectively. Based on the experimental results, the recommended methods in this paper are DenseNet169 and ResNet50 for surgical treatment recommendation and nonsurgical prognosis status classification, respectively. We believe that this paper can provide an important reference for future research on surgical treatment recommendation and nonsurgical prognosis classification for scaphoid fractures. [ABSTRACT FROM AUTHOR]
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- 2024
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4. Effect of carbon nanotubes on free radical polymerization of N-isopropylacrylamide in supercritical carbon dioxide and in methanol
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Shieh, Yeong-Tarng and Chen, Bo-Hong
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- 2016
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5. Deep Learning for Forecasting Electricity Demand in Taiwan.
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Yang, Cheng-Hong, Chen, Bo-Hong, Wu, Chih-Hsien, Chen, Kuo-Chang, and Chuang, Li-Yeh
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RENEWABLE energy sources , *ENERGY development , *DEMAND forecasting , *ELECTRIC power consumption , *DEEP learning , *WIND power , *THERMAL coal - Abstract
According to the World Energy Investment 2018 report, the global annual investment in renewable energy exceeded USD 200 billion for eight consecutive years until 2017. In this paper, a deep-learning-based time-series prediction method, namely a gated recurrent unit (GRU)-based prediction method, is proposed to predict energy generation in Taiwan. Data on thermal power (coal, oil, and gas power), renewable energy (conventional hydropower, solar power, and wind power), pumped hydropower, and nuclear power generation for 1991 to 2020 were obtained from the Bureau of Energy, Ministry of Economic Affairs, Taiwan, and the Taiwan Power Company. The proposed GRU-based method was compared with six common forecasting methods: autoregressive integrated moving average, exponential smoothing (ETS), Holt–Winters ETS, support vector regression (SVR), whale-optimization-algorithm-based SVR, and long short-term memory. Among the methods compared, the proposed method had the lowest mean absolute percentage error and root mean square error and thus the highest accuracy. Government agencies and power companies in Taiwan can use the predictions of accurate energy forecasting models as references to formulate energy policies and design plans for the development of alternative energy sources. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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6. Vertical Hybrid Integration Devices Using Selectively Defining Underneath Si Waveguide.
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Chen, Yang-Jeng, Fang, Yi-Hsin, Chen, Rih-You, Chen, Cong-Long, Chen, Bo-Hong, and Chiu, Yi-Jen
- Abstract
3D hybrid integration based on III-V/Si waveguides by selective undercut wet etching (SUWE) of the lower Si layer has been demonstrated on a silicon-on-insulator (SOI) template. The process was performed on an adhesive-bonding material structure, defined by the upper InP/InAlGaAs (InAlGaAs quantum well) p-i-n heterostructure and the lower 220 nm SOI. After the top p-i-n III-V tapered waveguide was first fabricated and covered by Si3N4, KOH was then used for SUWE of Si layer from SiO2 and Si3N4, forming the bottom SOI single-mode waveguide. In comparison to monolithic III-V waveguide structure (InP based material), the simulated confinement factor of active region shows an enhancement from 10.3% to 16.7%. SOA/EAM devices were also processed and integrated in III-V layer, showing 7.2 dB optical gain at 70 mA injection current in SOA and 21.7 dB extinction ratio within 0~−2 V swing voltage in EAM. The strong quantum confined Stark effect (QCSE) in MQW confirms the improved confinement factor. It suggests a vertical self-alignment scheme could be used for realizing compact and submicron scale heterogeneous integration in a Si photonics template. [ABSTRACT FROM AUTHOR]
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- 2021
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7. High-Performance Scaphoid Fracture Recognition via Effectiveness Assessment of Artificial Neural Networks.
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Tung, Yu-Cheng, Su, Ja-Hwung, Liao, Yi-Wen, Chang, Ching-Di, Cheng, Yu-Fan, Chang, Wan-Ching, and Chen, Bo-Hong
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ARTIFICIAL neural networks ,DEEP learning ,OBJECT recognition (Computer vision) ,CONVOLUTIONAL neural networks ,IMAGE recognition (Computer vision) - Abstract
Featured Application: This work will be materialized into the Bioimage Diagnostic system in Kaohsiung Branch of Chang Gung Hospital, Taiwan. Image recognition through the use of deep learning (DL) techniques has recently become a hot topic in many fields. Especially for bioimage informatics, DL-based image recognition has been successfully used in several applications, such as cancer and fracture detection. However, few previous studies have focused on detecting scaphoid fractures, and the related effectiveness is also not significant. Aimed at this issue, in this paper, we present a two-stage method for scaphoid fracture recognition by conducting an effectiveness analysis of numerous state-of-the-art artificial neural networks. In the first stage, the scaphoid bone is extracted from the radiograph using object detection techniques. Based on the object extracted, several convolutional neural networks (CNNs), with or without transfer learning, are utilized to recognize the segmented object. Finally, the analytical details on a real data set are given, in terms of various evaluation metrics, including sensitivity, specificity, precision, F1-score, area under the receiver operating curve (AUC), kappa, and accuracy. The experimental results reveal that the CNNs with transfer learning are more effective than those without transfer learning. Moreover, DenseNet201 and ResNet101 are found to be more promising than the other methods, on average. According to the experimental results, DenseNet201 and ResNet101 can be recommended as considerable solutions for scaphoid fracture detection within a bioimage diagnostic system. [ABSTRACT FROM AUTHOR]
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- 2021
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8. Multiple optical vortex beams generated by frequency-doubled Nd:YVO4/KGW Raman lasers at 588 nm.
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Tung, Jung-Chen, Chen, Bo-Hong, and Lin, Meng-Chieh
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- 2023
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9. Comparison of the Characteristic Mass Fragmentations of Phenethylamines and Tryptamines by Electron Ionization Gas Chromatography Mass Spectrometry, Electrospray and Matrix-Assisted Laser Desorption Ionization Mass Spectrometry.
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Chen, Bo-Hong, Liu, Ju-Tsung, Chen, Hung-Ming, Chen, Wen-Xiong, and Lin, Cheng-Huang
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PHENETHYLAMINES ,ELECTRON impact ionization ,GAS chromatography/Mass spectrometry (GC-MS) - Abstract
Characteristic mass fragmentation of 20 phenethylamine/tryptamine standards were investigated and compared by means of matrix assisted laser desorption/time-of-flight mass spectrometry (MALDI/TOFM), gas chromatography–electron ionization–mass spectrometry (GC-EI/MS) and liquid chromatography–electrospray ionization/mass spectrometry (LC-ESI/MS) methods. As a result, three characteristic peaks ([M]
+ and fragments from the Cβ -Cα bond breakage) were found to be unique and contained information useful in identifying 2C series compounds based on the GC-EI/MS method. We found that the protonated molecular ion ([M+H]+ ) and two types of fragments produced from the α-cleavage and β-cleavage processes were useful mass spectral information in the rapid screening and confirmation of phenethylamine and tryptamine derivatives when ESI/MS and MALDI/TOFMS methods were applied. This assay was successfully used to determine samples that contain illicit drugs. [ABSTRACT FROM AUTHOR]- Published
- 2018
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10. Supercritical CO2 affects the copolymerization, LCST behavior, thermal properties, and hydrogen bonding interactions of poly(N-isopropylacrylamide-co-acrylic acid).
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Shieh, Yeong-Tarng, Chen, Bo-Hong, Wang, Tzong-Liu, and Kuo, Shiao-Wei
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ACRYLIC acid , *SUPERCRITICAL carbon dioxide , *AZOBISISOBUTYRONITRILE , *COPOLYMERS , *GLASS transitions - Abstract
Radical copolymerizations of N -isopropylacrylamide (NIPAm) with acrylic acid (AA) initiated by azobisisobutyronitrile in supercritical carbon dioxide (scCO 2 , 55 °C, 27.6 MPa) were compared with those performed in MeOH at 55 °C. The AA compositions of the copolymers in scCO 2 were lower than those of the copolymers in MeOH and they increased upon decreasing the pressure of scCO 2 from 27.6 to 13.8 MPa. The glass transition temperatures of these copolymers deviated positively from those of respective homopolymers prepared in both media, with the copolymer obtained at a 50/50 feed ratio exhibiting the highest value of T g . FTIR spectroscopy revealed enhanced H-bonding between the amide group of the NIPAm and the carboxyl group of the AA in the copolymers in scCO 2 , suggesting that the much higher values of T g of these copolymers, relative to those in MeOH, arose presumably from the more highly alternating sequences of their NIPAm and AA units. [ABSTRACT FROM AUTHOR]
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- 2017
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11. Multiple Patterns of Regulation and Overexpression of a Ribonuclease-Like Pathogenesis-Related Protein Gene, OsPR10a, Conferring Disease Resistance in Rice and Arabidopsis.
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Huang, Li-Fen, Lin, Kuan-Hung, He, Siou-Luan, Chen, Jyh-Lang, Jiang, Jian-Zhi, Chen, Bo-Hong, Hou, Yi-Syuan, Chen, Ruey-Shyang, Hong, Chwan-Yang, and Ho, Shin-Lon
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RICE disease & pest resistance ,GENETIC overexpression ,RIBONUCLEASES ,ARABIDOPSIS ,CELL culture ,DISULFIDES - Abstract
An abundant 17 kDa RNase, encoded by OsPR10a (also known as PBZ1), was purified from P
i -starved rice suspension-cultured cells. Biochemical analysis showed that the range of optimal temperature for its RNase activity was 40–70°C and the optimum pH was 5.0. Disulfide bond formation and divalent metal ion Mg2+ were required for the RNase activity. The expression of OsPR10a::GUS in transgenic rice was induced upon phosphate (Pi ) starvation, wounding, infection by the pathogen Xanthomonas oryzae pv. oryzae (Xoo), leaf senescence, anther, style, the style-ovary junction, germinating embryo and shoot. We also provide first evidence in whole-plant system, demonstrated that OsPR10a-overexpressing in rice and Arabidopsis conferred significant level of enhanced resistance to infection by the pathogen Xoo and Xanthomona campestris pv. campestris (Xcc), respectively. Transgenic rice and Arabidopsis overexpressing OsPR10a significantly increased the length of primary root under phosphate deficiency (-Pi ) condition. These results showed that OsPR10a might play multiple roles in phosphate recycling in phosphate-starved cells and senescing leaves, and could improve resistance to pathogen infection and/or against chewing insect pests. It is possible that Pi acquisition or homeostasis is associated with plant disease resistance. Our findings suggest that gene regulation of OsPR10a could act as a good model system to unravel the mechanisms behind the correlation between Pi starvation and plant-pathogen interactions, and also provides a potential application in crops disease resistance. [ABSTRACT FROM AUTHOR]- Published
- 2016
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12. Blood vessels by fractal gelatin.
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Yang, Lung-Jieh and Chen, Bo-Hong
- Abstract
In this study the authors developed a novel gelatin patterning technique applied to making blood vessel with fractal dendrite configuration. Such a chaotic tree-like pattern has been obtained through precipitating among the gelatin matrix which is spun coating on a glass substrate at room temperature. The weight percentage of the original gelatin solution is over-saturated. As the temperature decrease, the gelatin crystallizes and forms a natural fractal pattern in the thin film. The process parameters are changed and the hydraulic diameters of the fractal patterns are verified from 0.1 µm to 23 µm. Finally the authors used the biocompatible PDMS making blood vessel like capillary channels by the de-molding process of the soft lithography. The filling test of the PDMS fractal channel chip is done accordingly. [ABSTRACT FROM PUBLISHER]
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- 2012
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13. Chaotic vessels fabricated by fractal gelatin.
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Yang, Lung-Jieh, Sheu, Tsung-Sheng, Chen, Bo-Hong, and Lee, Chia-Chan
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CHAOS theory ,GELATIN ,DENDRITIC crystals ,PRECIPITATION (Chemistry) ,GLASS ,TEMPERATURE effect ,SURFACE coatings ,POLYDIMETHYLSILOXANE - Abstract
A novel gelatin patterning technique applied to making capillary vessels with fractal dendrite configuration is presented. Such a chaotic tree-like pattern has been obtained by precipitating among the gelatin matrix that is spin coated on a glass substrate at room temperature. The weight percentage of the original gelatin solution is over saturated. As the temperature decreases, the gelatin crystallises and forms a natural fractal pattern extruding the film surface. The process conditions of spin coating and the gelatine concentration are varied so that the hydraulic diameters of the fractal branches are verified from 0.1 to 23 µm. The authors therefore fabricated hollow vessels by the polydimethylsiloxane (PDMS) de-moulding of the soft lithography. The water filling test of the PDMS vessel chip is done accordingly. The issue of the toxicity is also addressed. [ABSTRACT FROM AUTHOR]
- Published
- 2012
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14. A general approach to the screening and confirmation of tryptamines and phenethylamines by mass spectral fragmentation
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Chen, Bo-Hong, Liu, Ju-Tsung, Chen, Wen-Xiong, Chen, Hung-Ming, and Lin, Cheng-Huang
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INTERMEDIATES (Chemistry) , *ORGANIC compounds , *CARBENES , *IONS - Abstract
Abstract: Certain characteristic fragmentations of tryptamines (indoleethylamine) and phenethylamines are described. Based on the GC–EI/MS, LC–ESI/MS and MALDI/TOFMS, the mass fragmentations of 13 standard compounds, including α-methyltryptamine (AMT), N,N-dimethyltryptamine (DMT), 5-methoxy-α-methyltryptamine (5-MeO-AMT), N,N-diethyltryptamine (DET), N,N-dipropyltryptamine (DPT), N,N-dibutyltryptamine (DBT), N,N-diisopropyltryptamine (DIPT), 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT), 5-methoxy-N,N-diisopropyltryptamine (5-MeO-DIPT), methamphetamine (MAMP), 3,4-methylenedioxyamphetamine (3,4-MDA), 3,4-methylenedioxymethamphetamine (3,4-MDMA) and 2-methylamino-1-(3,4-methylenedioxyphenyl)butane (MBDB), were compared. As a result, the parent ions of these analytes were hard to be obtained by GC/MS whereas the protonated molecular ions can be observed clearly by means of ESI/MS and MALDI/TOFMS. Furthermore, two major characteristic fragmentations, namely and α-cleavage ([M +H]+ →[3-vinylindole]+) and β-cleavage ([M +H]+ →[CH2N+RN1RN2]), are produced when the ESI and MALDI modes are used, respectively. In the case of ESI/MS, the fragment obtained from α-cleavage is the major process. In contrast to this, in the case of MALDI/TOFMS, the major fragment is produced via β-cleavage. The ionization efficiency and fragments formed from either α- or β-cleavages are closely related to the degree of alkylation of the side chain nitrogen in both cases. [Copyright &y& Elsevier]
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- 2008
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15. Bioinformatics analysis of differentially expressed proteins in alcoholic fatty liver disease treated with recombinant human cytoglobin.
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Zhang, Zi-Rong, Yang, Zheng-Gen, Xu, Yan-Mei, Wang, Zhe-Yan, Wen, Jian, Chen, Bo-Hong, Wang, Ping, Wei, Wei, Li, Zhen, and Dong, Wen-Qi
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FATTY liver ,ALCOHOLIC liver diseases ,COMPLEMENT receptors ,PROTEINS ,TWO-dimensional electrophoresis ,MONOCARBOXYLIC acids ,FETAL hemoglobin - Abstract
Cytoglobin (Cygb) is a globin molecule that is ubiquitously expressed in all tissues and has a protective role under oxidative stress. It has also been demonstrated to be effective in the treatment of alcoholic fatty liver disease (AFLD). In order to study the molecular mechanisms underlying its beneficial effects for the treatment of alcoholic liver, two-dimensional electrophoresis and mass spectrometric analysis were performed on serum and liver tissues from an in vivo rat model of AFLD. A total of 26 differentially expressed proteins were identified in the serum and 20 differentially expressed proteins were identified in liver specimens. Using online bioinformatics tools, it was indicated that these differentially expressed proteins were primarily associated with pathways including binding and uptake of ligands by scavenger receptors, response to corticosteroid, plasma lipoprotein remodeling, regulation of complement cascade, hydrogen peroxide catabolic process, as well as response to nutrient and monosaccharide. The present results suggested that recombinant human Cygb exerts its role in the treatment of AFLD primarily through affecting nutrient metabolism, monocarboxylic acid biosynthesis, regulation of glutathione expression, plasma lipoprotein remodeling and removal of metabolic waste from the blood. [ABSTRACT FROM AUTHOR]
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- 2021
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16. A Further Investigation of NH4+ Removal Mechanisms by Using Natural and Synthetic Zeolites in Different Concentrations and Temperatures.
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Chen, Huei-Fen, Lin, Yi-Jun, Chen, Bo-Hong, Yoshiyuki, Iizuka, Liou, Sofia Ya-Hsuan, and Huang, Rong-Tan
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AMMONIUM ,ZEOLITES ,ION exchange (Chemistry) ,SILICON ,POTASSIUM - Abstract
We investigated the ammonium removal abilities of natural and synthetic zeolites with distinct Si/Al ratios and various surface areas to study how adsorption and ion exchange processes in zeolites perform under different ammonium concentrations and different temperatures. Five zeolites—natural mordenite, chabazite, erionite, clinoptilolite, and synthetic merlinoite—were immersed in 20, 50, and 100 mg/kg ammonium solutions. The results demonstrate that zeolites under high ammonium concentrations (100 mg/kg) possess higher physical adsorption capacity (0.398–0.468 meq/g), whereas those under lower ammonium concentrations (20 mg/kg) possess greater ion exchange properties (64–99%). The ion exchange ability of zeolites is extremely dependent on the cation content of the zeolites, and the cation content is affected by the Si/Al ratio. The surface area of zeolites also has a partial influence on its physical adsorption ability. When the surface area is less than 100 m
2 /g, the adsorption ability of zeolite increases obviously with surface area; however, adsorption ability is saturated as the surface area becomes larger than this critical value of 100 m2 /g. When we placed the zeolites in 50 mg/kg ammonium concentration at different temperatures (5–50 °C), we found that the zeolites exhibited the highest ammonium removal ability at 30 °C and the potassium release was enhanced at 30–40 °C. [ABSTRACT FROM AUTHOR]- Published
- 2018
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17. Effects of OsCDPK1 on the Structure and Physicochemical Properties of Starch in Developing Rice Seeds.
- Author
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Jiang, Jian-Zhi, Kuo, Chun-Hsiang, Chen, Bo-Hong, Chen, Mao-Kei, Lin, Choun-Sea, and Ho, Shin-Lon
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STARCH ,RICE seeds ,BIOSYNTHESIS ,BIOCHEMISTRY ,SEED development - Abstract
Overexpression of a constitutively active truncated form of OsCDPK1 (OEtr) in rice produced smaller seeds, but a double-stranded RNA gene-silenced form of OsCDPK1 (Ri) yielded larger seeds, suggesting that OsCDPK1 plays a functional role in rice seed development. In the study presented here, we propose a model in which OsCDPK1 plays key roles in negatively controlling the grain size, amylose content, and endosperm appearance, and also affects the physicochemical properties of the starch. The dehulled transgenic OEtr grains were smaller than the dehulled wild-type grains, and the OEtr endosperm was opaque and had a low amylose content and numerous small loosely packed polyhedral starch granules. However, the OEtr grain sizes and endosperm appearances were not affected by temperature, which ranged from low (22 °C) to high (31 °C) during the grain-filling phase. In contrast, the transgenic Ri grains were larger, had higher amylose content, and had more transparent endosperms filled with tightly packed polyhedral starch granules. This demonstrates that OsCDPK1 plays a novel functional role in starch biosynthesis during seed development and affects the transparent appearance of the endosperm. These results improve our understanding of the molecular mechanisms through which the grain-filling process occurs in rice. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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18. Overexpression of a constitutively active truncated form of OsCDPK1 confers disease resistance by affecting OsPR10a expression in rice.
- Author
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He SL, Jiang JZ, Chen BH, Kuo CH, and Ho SL
- Subjects
- Calcium-Binding Proteins metabolism, Cyclopentanes pharmacology, Gene Expression Regulation, Plant drug effects, Oryza genetics, Oryza microbiology, Oxylipins pharmacology, Plant Diseases microbiology, Plant Leaves genetics, Plant Leaves growth & development, Plant Leaves microbiology, Plant Proteins metabolism, Salicylic Acid pharmacology, Seedlings genetics, Seedlings growth & development, Seedlings microbiology, Xanthomonas physiology, Calcium-Binding Proteins genetics, Disease Resistance, Oryza growth & development, Plant Proteins genetics
- Abstract
The rice pathogenesis-related protein OsPR10a was scarcely expressed in OsCDPK1-silenced (Ri-1) rice, which was highly sensitive to pathogen infection. After inoculating the leaves with bacterial blight (Xanthomonas oryzae pv. oryzae; Xoo), we found that the expression of OsPR10a was up- and down-regulated in OEtr-1 (overexpression of the constitutively active truncated form of OsCDPK1) and Ri-1 rice plants, respectively. OsPR10a and OsCDPK1 showed corresponding expression patterns and were up-regulated in response to the jasmonic acid, salicylic acid and Xoo treatments, and OsPR1 and OsPR4 were significantly up-regulated in OEtr-1. These results suggest that OsCDPK1 may be an upstream regulator involved in rice innate immunity and conferred broad-spectrum of disease resistance. Following the Xoo inoculation, the OEtr-1 and Ri-1 seedlings showed enhanced and reduced disease resistance, respectively. The dihybrid rice Ri-1/OsPR10a-Ox not only bypassed the effect of OsCDPK1 silencing on the susceptibility to Xoo but also showed enhanced disease resistance and, consistent with Ri-1 phenotypes, increased plant height and grain size. Our results reveal that OsCDPK1 plays novel key roles in the cross-talk and mediation of the balance between stress response and development and provides a clue for improving grain yield and disease resistance simultaneously in rice.
- Published
- 2018
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19. Separation of crystal violet dyes and its application to pen ink analysis using CZE and MEKC methods.
- Author
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Shih CM, Liu JT, Chen BH, and Lin CH
- Abstract
A crystal violet (CV) standard was irradiated under a Hg-Cd lamp for different exposure times to obtain various N-demethylation products. CZE effectively separated the photodegradation products based on molecular weight differences. In contrast, micellar EKC (MEKC), using SDS as the surfactant, was ineffective because the binding constants of the demethylation products and SDS were too close for separation. Nevertheless, MEKC analysis of ink has applications in forensic science because MEKC separated neutral components in the inks. Thus, MEKC can be used to obtain an ink "fingerprint" since each ink is unique depending on the location and time it was made. In contrast, CZE is useful for dating inks because CV is the primary ink dye and it photodegrades slowly.
- Published
- 2008
- Full Text
- View/download PDF
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