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  • Open Access

    ARTICLE

    Effect of Epoxidized Jatropha Oil on the Cure, Thermal, Morphological and Viscoelastic Properties of Epoxy Resins

    A. Sammaiah1, K. V. Padmaja1, K. I. Suresh*,2, R. B. N. Prasad1

    Journal of Renewable Materials, Vol.4, No.2, pp. 113-122, 2016, DOI:10.7569/JRM.2015.634118

    Abstract This article reports the effect of epoxidized jatropha oil (EJO) on the thermal, cure and viscoelastic properties of epoxy resins. Epoxidized jatropha oil with an oxirane value of 5.0 was prepared and epoxy formulations containing different concentrations of EJO were evaluated for cure, morphology, thermal and viscoelastic properties. The curing temperature of the formulations increased with increasing EJO content. The glass transition temperature of the cured films decreased from 56 °C for unmodified epoxy resin to 23 °C for the sample with 60 wt% EJO reactive diluent, suggesting good plasticizing action. The thermal decomposition was More >

  • Open Access

    ARTICLE

    Phenotype, symptom severity and treatment in a “cured” cohort of chronic pelvic pain syndrome patients

    Chad A. Reichard, Irene Makovey, Daniel A. Shoskes

    Canadian Journal of Urology, Vol.22, No.1, pp. 7623-7626, 2015

    Abstract Introduction: To identify a cohort of chronic pelvic pain syndrome (CPPS) patients who considered their symptoms completely resolved and analyze their demographics, clinical phenotype, treatments and NIH-Chronic Prostatitis Symptom Index (CPSI) scores.
    Materials and methods: We identified 35 CPPS patients who at the follow up, reported their symptoms completely resolved (“cured”). Demographics, UPOINT phenotypes, treatments, and CPSI scores were examined. We also compared these variables to a database of 220 previously evaluated CPPS patients.
    Results: Patients ranged in age from 19 to 72 years. Median follow up was 12 months. Mean change in CPSI sub scores before and after… More >

  • Open Access

    ARTICLE

    Ureteral stricture formation in laparoscopically procured living donor kidney transplantation

    Mark D. Tyson1, Erik P. Castle1, Paul E. Andrews1, Raymond L. Heilman2, Adyr A. Moss2, David C. Mulligan2, Kunam S. Reddy2

    Canadian Journal of Urology, Vol.19, No.2, pp. 6188-6192, 2012

    Abstract Introduction: To identify the incidence of and risk factors for ureteral stricture formation in laparoscopically procured living donor kidney transplantation (LLDKT).
    Materials and methods: An IRB approved retrospective review of our institution's living donor database was performed. Patients were divided into two cohorts, those with ureteral strictures requiring procedural intervention and those without evidence of ureteral strictures. Analysis was limited to those patients with at least one year of follow up.
    Results: Of the 584 LLDKT's performed at our institution since June 1999, 510 had at least 1 year of follow up. Four hundred and ninety-six patients had… More >

  • Open Access

    ARTICLE

    CHARACTERIZATION OF THE RHEOLOGY AND CURE KINETICS OF EPOXY RESIN WITH CARBON NANOTUBES

    R. J. Johnson, R. Pitchumani

    Frontiers in Heat and Mass Transfer, Vol.1, No.1, pp. 1-9, 2010, DOI:10.5098/hmt.v1.1.3007

    Abstract Much research is currently being performed with carbon nanotube additives to neat resin systems to enhance properties such as thermal and electrical conductivity, strength, modulus and damping. Fabrication of parts based on carbon nanotube filled resin systems requires information on their cure kinetics and rheology, which has been relatively less studied so far. This work presents an extensive experimental study that systematically characterizes the cure kinetics and viscosity as a function of degree of cure and temperature of EPON 815C/EPICURE 3274 epoxy resin system laden with carbon nanotubes. Studies are conducted to determine the effects More >

  • Open Access

    ARTICLE

    Disruption of T cell regulatory pathways is necessary for immunotherapeutic cure of T cell acute lymphoblastic leukemia in mice

    S. Fiorentino1,4, M. Chopin1, H. Dastot1, N. Boissel2, M. Reboul1, L. Legrès1, A. Janin1, P. Aplan3, F. Sigaux1, Armelle Regnault1

    European Cytokine Network, Vol.16, No.4, pp. 300-308, 2005

    Abstract Acute lymphoblastic leukemia (ALL) is the most common cancer in children. In recent years, the outcome has been globally improved by current therapies, but it remains poor in patients with high, persistent residual disease following the first course of chemotherapy, prompting evaluation of the possible beneficial effects of immunotherapy protocols. In this study, we hypothesized that the disruption of two immunoregulatory pathways controlling the auto-reactive T cell response might synergize with dendritic cell-based immunotherapy of the disease, which is considered to be poorly immunogenic. In this study, we used TAL1xLMO1 leukemia cells adoptively transferred in… More >

  • Open Access

    ARTICLE

    Non-Isothermal Three-Dimensional Developments and Process Modeling of Composites: Flow/Thermal/Cure Formulations and Experimental Validations

    N. D. Ngo, K. K. Tamma1

    CMES-Computer Modeling in Engineering & Sciences, Vol.1, No.3, pp. 57-72, 2000, DOI:10.3970/cmes.2000.001.359

    Abstract In the process modeling via Resin Transfer Molding (RTM) for thick composite sections, multi-layer preforms with varying thermophysical characteristics across the different layers, or for geometrically complex mold geometries with varying thicknesses, the assumption of a thin shell-like geometry is no longer valid. The flow in the through thickness direction is no longer negligible and current practices of treating the continuously moving flow front as two-dimensional and the temperature and cure as three-dimensional are not representative of the underlying physics. In view of these considerations, in the present study, the focus is on the non-isothermal… More >

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