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  • Open Access

    ARTICLE

    High Capacity Data Hiding in Encrypted Image Based on Compressive Sensing for Nonequivalent Resources

    Di Xiao1,*, Jia Liang1, Qingqing Ma1, Yanping Xiang1, Yushu Zhang2

    CMC-Computers, Materials & Continua, Vol.58, No.1, pp. 1-13, 2019, DOI:10.32604/cmc.2019.02171

    Abstract To fulfill the requirements of data security in environments with nonequivalent resources, a high capacity data hiding scheme in encrypted image based on compressive sensing (CS) is proposed by fully utilizing the adaptability of CS to nonequivalent resources. The original image is divided into two parts: one part is encrypted with traditional stream cipher; the other part is turned to the prediction error and then encrypted based on CS to vacate room simultaneously. The collected non-image data is firstly encrypted with simple stream cipher. For data security management, the encrypted non-image data is then embedded More >

  • Open Access

    ARTICLE

    Tanshinone Suppresses Arecoline-Induced Epithelial–Mesenchymal Transition in Oral Submucous Fibrosis by Epigenetically Reactivating the p53 Pathway

    Lian Zheng, Zhen-Jie Guan, Wen-Ting Pan, Tian-Feng Du, Yu-Jia Zhai, Jia Guo

    Oncology Research, Vol.26, No.3, pp. 483-494, 2018, DOI:10.3727/096504017X14941825760362

    Abstract Oral submucous fibrosis (OSF) induced by chewing of the areca nut has been considered to be a precancerous lesion with a high probability of developing oral squamous cell carcinoma. Tanshinone (TSN) is the main component extracted from Salvia miltiorrhiza, a traditional Chinese medicine, which was found to have diverse pharmacological effects, such as anti-inflammatory and antitumor. In the current study, we aimed to identify the inhibitory effects and the underlying mechanism of TSN on OSF progress. We found that treatment with TSN inhibited the arecoline-mediated proliferation of primary human oral mucosal fibroblasts and reversed the… More >

  • Open Access

    RETRACTION

    Retraction Notice to: Mitigating Content Caching Attack in NDN

    Zhiqiang Ruan1,*, Haibo Luo1, Wenzhong Lin1, Jie Wang2

    CMC-Computers, Materials & Continua, Vol.57, No.3, pp. 653-653, 2018, DOI:10.32604/cmc.2018.00653

    Abstract none More >

  • Open Access

    ARTICLE

    Superoxide and hydrogen peroxide productions by NO-inhibited complex III

    Darío E. IGLESIAS*, Silvina S. BOMBICINO, Alberto BOVERIS, Laura B. VALDEZ

    BIOCELL, Vol.40, No.1, pp. 27-30, 2016, DOI:10.32604/biocell.2016.40.027

    Abstract Complex III plays a central role in the mitochondrial respiratory chain transferring electrons from ubiquinol to cytochrome c and pumping protons to the intermembrane space, contributing to the protonmotive force. Furthermore, complex III can act as a source of O2 •- in the presence of ubiquinol and antimycin, an expermiental condition in which the oxidation of the cytochrome b hemes is blocked. The O2 •- dismutation catalyzed by superoxide dismutase produces H2O2, a known second messenger in redox signalling. Results from our laboratory have shown that NO, released from GSNO or from SPER -NO or generated… More >

  • Open Access

    ARTICLE

    Method for Detecting Macroscopic Irregularities in Gears Based on Template Matching and the Nonequivalence Operation

    W.C. Wang1, F.L. Chang2, Y.L. Liu1, X. J. Wu1

    CMES-Computer Modeling in Engineering & Sciences, Vol.107, No.5, pp. 411-431, 2015, DOI:10.3970/cmes.2015.107.411

    Abstract The detection of macroscopic irregularities is an essential procedure during the production of gears, and it helps to guarantee the quality of electromechanical transmission equipment. The working principles of template matching and the image nonequivalence operation are described in detail in this paper. Gray-level transformation, edge-preserving filtering, image segmentation, feature extraction, and pattern recognition were analyzed, leading to the design of a defect detection system based on template matching and the nonequivalence operation, followed by the development of a hardware platform and application software for the system. The experimental results indicate that the proposed detection More >

  • Open Access

    ARTICLE

    ADVANCES IN THERMODIFFUSION AND THERMOPHORESIS (SORET EFFECT) IN LIQUID MIXTURES

    Morteza Eslamian*

    Frontiers in Heat and Mass Transfer, Vol.2, No.4, pp. 1-20, 2011, DOI:10.5098/hmt.v2.4.3001

    Abstract Recent advances in thermodiffusion (Soret effect) in binary and higher multicomponent liquid mixtures are reviewed. The mixtures studied include the hydrocarbon, associating, molten metal and semiconductor, polymer, and DNA mixtures. The emphasis is placed on the theoretical works, particularly models based on the nonequilibrium thermodynamics, although other approaches such as the statistical, kinetic and hydrodynamic approaches are discussed as well. For each mixture, the major theoretical and experimental works are discussed and the research trends and challenges are addressed. Some of the challenges include a need for combining various methods to develop a comprehensive theoretical More >

  • Open Access

    ARTICLE

    Antibacterial and antifungic activity of the unifloral honeys of Quillaja saponaria, an endemic Chilean species

    Montenegro G, F Salas, RC Peña, R Pizarro

    Phyton-International Journal of Experimental Botany, Vol.78, pp. 141-146, 2009, DOI:10.32604/phyton.2009.78.141

    Abstract The detection of phenolics, flavonoids and related compounds by HPLC in extracts of unifloral honey of Quillay (Quillaja saponaria) showed phenolic compounds such as caffeic, coumaric and salicylic acids, the flavanone naringenin and the flavonol kaempferol. These extracts showed antibacterial activity against Pseudomonas aureginosa, Escherichia coli, Staphylococcus typhi, S. aureus, Streptococcus pneumoniae type β, and Vibrio cholerae, and antifungal activity against Candida albicans. Additionally, some aroma and decomposition compounds were identified in the ethanol extract. More >

  • Open Access

    ARTICLE

    Modelling of Evaporative Cooling of Porous Medium Filled with Evaporative Liquid

    D.P.Mondal1, S.Das1, Anshul Badkul1, Nidhi Jha1

    CMC-Computers, Materials & Continua, Vol.13, No.2, pp. 115-134, 2009, DOI:10.3970/cmc.2009.013.115

    Abstract The cooling effect by evaporative liquid is modeled by considering that heat is transferred from the system to the surrounding due to evaporation of liquid through the pores present in the medium. The variation of cooling rate with cell size, volume fraction of pores and physical conditions has been analyzed. The model demonstrates that it increases with increase in thickness of the foam slab and with increase in velocity of air. It is also observed that cooling effect decreases with decrease in volume fraction of porosity and with increase in relative density, cell size, thermal More >

  • Open Access

    ARTICLE

    Apoptogenic effect of the lipophilic o-naphthoquinone CG 10-248 on rat hepatocytes: light and electron microscopy studies

    Lidia M. Lopez*, Marta Dubin**, Patricia H. Carrizo**, Mario H. Burgos***, Amanda Pellegrino De Iraldi*, Andrés O. M. Stoppani**

    BIOCELL, Vol.27, No.2, pp. 213-224, 2003, DOI:10.32604/biocell.2003.27.213

    Abstract CG 10-248 (3,4-dihydro-2,2-dimethyl-9-chloro-2H-naphtho[1,2b]pyran- 5,6-dione; CG-NQ), a β-lapachone analogue, modified the ultrastructure of rat hepatocytes, as demonstrated by light and electron microscopy. After 4 h incubation with 100 µM CG-NQ, the following effects were observed: (a) nuclear chromatin condensation; (b) chromatin fragmentation; (c) displacement of mitochondria, concentrated around the nucleus; (d) disruption or expansion of mitochondrial outer or inner membranes, respectively; (e) displacement and alteration of endoplasmic reticulum (rough and smooth); (f) decrease of microvilli; (g) blebbing of plasma membrane and production of apoptotic bodies formed by folding of plasma membrane fragments around mitochondria or peroxysomes; More >

  • Open Access

    ARTICLE

    Effect of the Lipophilic o-Naphthoquinone CG 10-248 on Rat Liver Mitochondria Structure and Function

    LIDIA M. LOPEZ*, AMANDA PELLEGRINO DE IRALDI*, PATRICIA H. CARRIZO**, MARTA DUBIN**, ANDRÉS O.M. STOPPANI**

    BIOCELL, Vol.26, No.2, pp. 237-245, 2002, DOI:10.32604/biocell.2002.26.237

    Abstract CG 10-248 (3,4-dihydro-2,2 dimethyl-9-chloro-2H-naphtho[1,2b]pyran-5,6-dione), a ß-lapachone analogue, modified the ultrastructure of rat liver mitochondria in vitro, in the absence of added oxidizable substrates. The condensed mitochondrial state was replaced by the orthodox or swollen state to a significant degree. The number of modified mitochondria depended on incubation time and quinone concentration, in the 25-100 µM range. Under the same experimental conditions, mitochondrial respiration was uncoupled as indicated by the increase in the rate of succinate oxidation by controlled mitochondria in metabolic state “4” (not in state “3”), and by the activation of latent F0 F1 -ATP synthase. More >

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