John L. Volakis¹, Kubilay Sertel¹, Erik Jørgensen², Rick W. Kindt¹

CMES-Computer Modeling in Engineering & Sciences, Vol.5, No.5, pp. 463-476, 2004, DOI:10.3970/cmes.2004.005.463

Abstract In this paper we address several topics relating to the development and implementation of volume integral and hybrid finite element methods for electromagnetic modeling. Comparisons of volume integral equation formulations with the finite element-boundary integral method are given in terms of accuracy and computing resources. We also discuss preconditioning and parallelization of the multilevel fast multipole method, and propose higher-order basis functions for curvilinear quadrilaterals and volumetric basis functions for curvilinear hexahedra. The latter have the desirable property of vanishing divergence within the element but non-zero curl. In addition, a new domain decomposition is introduced More >

Alexander Agranovich¹, Piotr Czaykowski², David Hui³, Tom Pickles⁴, Winkle Kwan¹

Canadian Journal of Urology, Vol.10, No.6, pp. 2056-2061, 2003

Abstract Objective: To review retrospectively the outcome and toxicity of Radiotherapy (RT) in the cohort of elderly patients (EP) with muscle-invasive urinary bladder carcinoma (MIUBC).
Methods: Thirty-six EP were treated with RT with radical intent. The age of the cohort ranged from 71 to 89 years with a median of 79 years. Eighty percent of the patients had Eastern Cooperative Oncology Group (ECOG) 0 and 1 performance status. Conventional and accelerated fractionation RT regimen were utilized.
Results: With median follow up of 45.8 months, the median survival was 23.9 months. There was a trend toward better survival in patients More >

Marcelo de Castro Pazos*, Cristina Pacheco-Soares*, Newton Soares da Silva*, R.A. DaMatta**, M.T.T. Pacheco*

BIOCELL, Vol.27, No.3, pp. 301-309, 2003, DOI:10.32604/biocell.2003.27.301

Abstract The effects of Photodynamic Therapy using 2^nd generation photosensitizers have been widely investigated aiming clinical application treatment of solid neoplasms. In this work, ultrastructure changes caused by the action of two 2^nd generation photosensitizers and laser irradiation on CHO-K1 and HeLa (neoplastic) cells were analyzed by transmission electron microscopy. Aluminum phthalocyanine chloride, aluminum phthalocyanine tetrasulfonate chloride and radiation from a semiconductor laser at a fluency of 0.5 J/ cm² (Power=26mW; λ=670nm) were used. The results showed induction of apoptosis. Such alterations where observed in HeLa but not in CHO-K1 cells after Aluminum phthalocyanine tetrasulfonate chloride (AlPcS₄) photodynamic More >

Marc David¹, Luis Souhami¹, Armen Aprikian²

Canadian Journal of Urology, Vol.9, No.4, pp. 1599-1601, 2002

Abstract A case of post renal acute renal failure secondary to radiation therapy for prostate cancer is described. Severe bladder inflammatory reaction, leading to bilateral ureteric obstruction, occurred after a moderate dose of radiotherapy (6400 cGy in 35 fractions). At a follow-up time of 8 years, the patient has fully recovered and remains disease-free. To our knowledge, this complication has never been described previously. Given the thrust in prostate cancer treatment toward dose escalation this complication could become more frequent. More >

Richard Choo¹, Howard Sandler², Padraig Warde³, George Hruby¹, Gerrit DeBoer¹

Canadian Journal of Urology, Vol.9, No.2, pp. 1479-1485, 2002

Abstract Objective: To evaluate practice patterns of the management of stage I seminoma of testis in Canada and a selected group in the United States.
Materials and methods: Survey among radiation oncologists treating genitourinary (GU) tumors in Canada and the RTOG GU committee members in the United States between January and March 2001.
Results: Response rate was 78% (73/93) in Canada and 67% (24/36) in the United States. Eighty-four percent described their clinical practice as a university affiliated teaching center, and 16% as community-based or private practice. Sixty-two percent, 31% and 7% would manage 1-5, 6-10 and ≥11 cases… More >

L. Gaul, M. Fischer¹, U. Nackenhorst²

CMES-Computer Modeling in Engineering & Sciences, Vol.3, No.6, pp. 815-824, 2002, DOI:10.3970/cmes.2002.003.815

Abstract A sequential FEM--BEM approach is employed to calculate the dynamic behavior and sound radiation of rotating wheels. The equations of motion for the wheel are developed in the frame of an Arbitrary Eulerian Lagrangian description with a time-independent formulation for steady state rolling and a spatial description of vibrations. The noise radiation caused by the vibration modes is computed by the symmetric hybrid boundary element method. More >