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  • Open Access

    ARTICLE

    UNSTEADY HYDROMAGNETIC HEAT AND MASS TRANSFER NATURAL CONVECTION FLOW PAST AN EXPONENTIALLY ACCELERATED VERTICAL PLATE WITH HALL CURRENT AND ROTATION IN THE PRESENCE OF THERMAL AND MASS DIFFUSIONS

    J. K. Singha,*, N. Joshia , S. G. Beguma, C. T. Srinivasab

    Frontiers in Heat and Mass Transfer, Vol.7, pp. 1-12, 2016, DOI:10.5098/hmt.7.24

    Abstract In the present analytical study, we have considered unsteady hydromagnetic heat and mass transfer natural convection flow of an electrically conducting, heat absorbing and chemically reacting fluid past an exponentially accelerated vertical plate in a uniform porous medium taking Hall current and rotation into account. The species concentration near the plate is considered to be varies linearly with time. Two particular cases for plate temperature are considered i.e. (i) plate temperature is uniform and (ii) plate temperature varies linearly with time and after some time it is maintained at uniform temperature. The coupled partial differential More >

  • Open Access

    ARTICLE

    Photoselective laser ablation of the prostate: a review of the current 2015 tissue ablation options

    Côme Tholomier, Roger Valdivieso, Pierre-Alain Hueber, Kevin C. Zorn

    Canadian Journal of Urology, Vol.22, Suppl.5, pp. 45-52, 2015

    Abstract instruction: Introduction: Transurethral resection of the prostate (TURP) is still considered the gold standard to treat benign prostatic hyperplasia (BPH). However, photoselective vaporization of the prostate (PVP) has gained widespread acceptance as an alternative option requiring preoperative patient selection. Four laser systems are currently in use: holmium, thulium, diode and GreenLight.
    instruction: Materials and methods: The goal of this article is to review the physics and the basics behind laser prostatectomies, as well as to present the most current literature concerning the results, advantages, disadvantages and international recommendations for each vaporization procedure.
    instruction: Results: Holmium laser ablation of… More >

  • Open Access

    ARTICLE

    Bipolar energy in the treatment of benign prostatic hyperplasia: a current systematic review of the literature

    Rodrigo Donalisio da Silva1,*, Luke Bidikov1,2,*, Walker Michaels1, Diedra Gustafson1, Wilson R. Molina1,2, Fernando J. Kim1,2

    Canadian Journal of Urology, Vol.22, Suppl.5, pp. 30-44, 2015

    Abstract instruction: Introduction: For decades, the monopolar transurethral resection of the prostate has been established as the minimally invasive surgical treatment for patients with benign prostatic hyperplasia (BPH). In recent years, new technologies and devices emerged to reduce the morbidity and improve outcomes for this treatment approach. Bipolar energy introduced the use of saline irrigation and laser technology increased the urological armamentarium to treat BPH. We performed a systematic review of the literature regarding bipolar technology for the treatment of BPH.
    instruction: Materials and methods: A MEDLINE database search using the PRISMA methodology. Selected literature was restricted to… More >

  • Open Access

    ARTICLE

    Robotic-assisted laparoscopic catheterizable bladder augment: a novel approach to treat recurrent bladder neck contracture following radical prostatectomy

    Joseph Wagner, Peter Haddock

    Canadian Journal of Urology, Vol.22, No.6, pp. 8074-8078, 2015

    Abstract Introduction: Bladder neck contractures (BNC) are an uncommon complication following radical prostatectomy. Occasionally, BNCs can be refractory to endoscopic approaches. We describe the effectiveness of a novel robotic-assisted laparoscopic catheterizable bladder augment in treating recalcitrant BNCs.
    Materials and methods: Patients undergoing robotic-assisted radical prostatectomy (RALP) between 2004-2014 who developed a postoperative BNC were identified. We documented our experience with robotic-assisted laparoscopic catheterizable bladder augment for recalcitrant BNCs. Total operative time, robotic time, estimated surgical blood, length of hospital stay, serum creatinine, complications, and postoperative course/upper tract imaging were recorded.
    Results: Thirty-six of 2002 RALP patients (1.8%) experienced a… More >

  • Open Access

    ARTICLE

    Clinical Outcome in Definitive Concurrent Chemoradiation With Weekly Paclitaxel and Carboplatin for Locally Advanced Esophageal and Junctional Cancer

    Vanita Noronha*, Kumar Prabhash*, Amit Joshi*, Vijay Maruti Patil*, Sanjay Talole, Dipti Nakti*, Arvind Sahu*, Srushti Shah, Sarbani Ghosh-Laskar§, Prachi S. Patil, Shaesta A. Mehta, Nirmala Jambhekar#, Abhishek Mahajan**, Nilendu Purandare††

    Oncology Research, Vol.23, No.4, pp. 183-195, 2015, DOI:10.3727/096504016X14537290676865

    Abstract There are little data on the efficacy and safety of taxane/platinum with definitive radiotherapy (RT) for esophageal/GEJ cancer. This article is a retrospective analysis of patients who received weekly paclitaxel 50 mg/ m2 and carboplatin AUC 2 with radical definitive RT for locally advanced esophageal/GEJ cancer. Between February 2011 and July 2014, 179 patients were included. The median age was 54 years. Ninety-two percent of patients had squamous histology. Mean RT dose was 58.7 Gy in 32 fractions over 53 days, with mean of six chemotherapy cycles. Fifty-six percent of patients developed ³grade 3 acute… More >

  • Open Access

    INTRODUCTION

    Current management of advanced and castration resistant prostate cancer

    Leonard G. Gomella1, Daniel P. Petrylak2, Bobby Shayegan3

    Canadian Journal of Urology, Vol.21, Suppl.2, pp. 1-6, 2014

    Abstract instruction: Introduction: Newer approaches to the management of advanced prostate cancer have rapidly evolved. While basic androgen deprivation remains as the first line in newly diagnosed hormone naïve metastatic prostate cancer, the agents used and strategies followed have undergone significant changes. Numerous new agents such as sipuleucel-T, abiraterone, enzalutamide, cabazitaxel and radium-223 have all been approved since 2010 to treat metastatic castration-resistant prostate cancer (CRPC). New imaging techniques to detect advanced disease such as F-18 PET, 11C-choline PET and other modalities are becoming available. The concepts of "bone health" and the management of side effects related… More >

  • Open Access

    ARTICLE

    Early localization of recurrent prostate cancer after prostatectomy by endorectal coil magnetic resonance imaging

    Brian J. Linder1, Akira Kawashima2, David A. Woodrum2, Matthew K. Tollefson1, R. Jeffrey Karnes1, Brian J. Davis3, Laureano J. Rangel4, Bernard F. King2, Lance A. Mynderse1

    Canadian Journal of Urology, Vol.21, No.3, pp. 7283-7289, 2014

    Abstract Introduction: To evaluate the ability of endorectal coil (e-coil) magnetic resonance imaging (MRI) to identify early prostatic fossa recurrence after radical prostatectomy.
    Materials and methods: We identified 187 patients from 2005–2011 who underwent e-coil MRI with dynamic gadolinium-contrast enhancement followed by transrectal ultrasound (TRUS) guided prostatic fossa biopsy for possible local prostate cancer recurrence. For analysis, local recurrence was defined as a negative evaluation for distant metastatic disease with a positive prostatic fossa biopsy, decreased prostate-specific antigen (PSA) following salvage radiation therapy, or increased lesion size on serial imaging.
    Results: Local recurrence was identified in 132 patients, with… More >

  • Open Access

    ARTICLE

    EXPERIMENTS ON HEAT TRANSFER CHARACTERISTICS OF SHEARDRIVEN LIQUID FILM IN CO-CURRENT GAS FLOW

    Tomoki Hirokawaa,*, Masahiko Murozonoa, Oleg Kabovb,c, Haruhiko Ohtaa

    Frontiers in Heat and Mass Transfer, Vol.5, pp. 1-8, 2014, DOI:10.5098/hmt.5.17

    Abstract Experiments are performed to study the liquid film behavior and corresponding local heat transfer to shear-driven liquid film flow of water in the cocurrent nitrogen gas flow. The heated channel has a cross section of 30mm in width and 5mm in height, where the bottom is operated as a heating surface of 30mm in width and 100mm in length. The heated section is divided into segments to evaluate the local heat transfer coefficients. Under most gas Reynolds numbers, the local heat transfer coefficients are increased with increasing heat flux, where three mechanisms are important; (i) More >

  • Open Access

    REVIEW

    Thermoplastic Starch: Current Development and Future Trends

    Fengwei Xie1,*, Paul Luckman1, John Milne1, Lachlan McDonald1, Conor Young1, Chen Yang Tu1, Teo Di Pasquale1, Reinhard Faveere1, Peter J. Halley1,2

    Journal of Renewable Materials, Vol.2, No.2, pp. 95-106, 2014, DOI:10.7569/JRM.2014.634104

    Abstract Starch is a biopolymer that is widely available from agriculture/nature and thus is renewable and cheap. In addition, starch-based materials are biodegradable, offering a great advantage over traditional nonbiodegradable synthetic polymers. However, the poor processibility and product performance of starch have greatly impeded the wide application of starch in real applications. This paper reviews the current developments of the production of thermoplastic starch as a commodity renewable material. The biological origins of the feedstock, formulation development, processing requirements, as well as the important aspects that need to be addressed when designing a product from starch More >

  • Open Access

    ARTICLE

    Voxel-based Analysis of Electrostatic Fields in Virtual-human Model Duke using Indirect Boundary Element Method with Fast Multipole Method

    S. Hamada1

    CMES-Computer Modeling in Engineering & Sciences, Vol.102, No.5, pp. 407-424, 2014, DOI:10.3970/cmes.2014.102.407

    Abstract The voxel-based indirect boundary element method (IBEM) combined with the Laplace-kernel fast multipole method (FMM) is capable of analyzing relatively large-scale problems. A typical application of the IBEM is the electric field analysis in virtual-human models such as the model called Duke provided by the foundation for research on information technologies in society (IT’IS Foundation). An important property of voxel-version Duke models is that they have various voxel sizes but the same structural feature. This property is useful for examining the O(N) and O(D2) dependencies of the calculation times and the amount of memory required by More >

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