Pierre I. Karakiewicz^1,2, Felix K.-H. Chun^2,3, Alberto Briganti², Paul Perrotte¹, Michael McCormack¹, François Bénard¹, Luc Valiquette¹, Markus Graefen³, Fred Saad¹

Canadian Journal of Urology, Vol.13, Suppl.2, pp. 18-25, 2006

Abstract Introduction: Several nomograms have been developed to predict PCa related outcomes. Neural networks represent an alternative.
Methods: We provide a descriptive and an analytic comparison of nomograms and neural networks, with focus on PCa detection.
Results: Our results indicate that nomograms have several advantages that distinguish them from neural networks. These are both quantitative and qualitative.
Conclusion: In the field of PCa detection, nomograms appear to outweigh the benefits of neural networks. However, the neural network methodology represents a valid alternative, which should not be underestimated. More >

Gerald Brock¹, Edson D. Moreira Jr², Dale B. Glasser³, Clive Gingell⁴

Canadian Journal of Urology, Vol.13, No.1, pp. 2953-2961, 2006

Abstract Objectives: To study sexual activity, the prevalence of sexual difficulties and related help-seeking behaviors among mature adults in Canada.
Materials and methods: A telephone survey (random digit dialed) was conducted in Canada in 2001 to 2002. Interviews were based on a standardized questionnaire, including demographics, general health, relationships, and sexual behaviors, attitudes and beliefs. The survey was completed by a total of 1007 individuals (500 men and 507 women) aged 40 to 80 years in Canada.
Results: Overall, 83% of men and 71% of women had engaged in sexual intercourse during the 12 months preceding the interview, and… More >

Jacques Corcos¹, Jerzy Gajewski², Diane Heritz³, Allan Patrick⁴, Ian Reid⁵, Erik Schick⁶, Lynn Stothers⁷

Canadian Journal of Urology, Vol.13, No.3, pp. 3127-3138, 2006

Abstract Objective: To develop the first Canadian guidelines for the management of adult urinary incontinence (UI).
Method: Following a mandate of the Canadian Urological Association, six Canadian urologists collaborated to produce these guidelines after having extensively reviewed existing foreign guidelines and literature from 1966 to June 2005.
Results: The terminology proposed by the standardization committee of the International Continence Society (ICS) is recommended. Basic evaluation must include a history, physical examination, evaluation of post void residual volume, urinalysis and voiding diary. A more detailed evaluation is recommended for complex cases or if initial management fails. As non-pharmacological treatments,… More >

Steven P. Petrou, David D. Thiel, Daniel S. Elliot, Gregory A. Broderick, Michael J. Wehle, Paul R. Young

Canadian Journal of Urology, Vol.13, No.4, pp. 3195-3198, 2006

Abstract Introduction: Urethral erosion following artificial urinary sphincter (AUS) placement is hypothesized to be secondary to unrecognized intra-operative urethral injury. Intra-urethral indigo carmine solution (ICS), a blue dye, following urethral mobilization should identify intra-operative urethrotomy and prevent early post-operative cuff erosion.
Methods: Retrospective review was completed of all men undergoing AUS (AMS 800 device) insertion between January 2000 and January 2005 for post prostatectomy stress incontinence at one institution. Operative reports were examined for use of intra-operative injection of ICS as well as documentation of urethral injury. Post-operative course was reviewed for evidence of early cuff erosion.… More >

I.A. VEGA*, M.C. DAMBORENEA**, C. GAMARRA-LUQUES*, E. KOCH*, J.A. CUETO, A. CASTRO-VAZQUEZ*

BIOCELL, Vol.30, Suppl.S, pp. 367-375, 2006

Abstract This article has no abstract. More >

C. DAMBORENEA*, F. BRUSA*, A. PAOLA**

BIOCELL, Vol.30, No.3, pp. 457-468, 2006, DOI:10.32604/biocell.2006.30.457

Abstract Pomacea canaliculata is a common gastropod in freshwater habitats from Central and Northern Argentina, extending northwards into the Amazon basin. Several Platyhelminthes have been reported associated to P. canaliculata, sharing an intimate relationship with this gastropod host. The objectives of this study were to describe the symbiotic species assemblages associated to P. canaliculata in the study area, and to disclose differences among them. Samples were taken in three typical small streams and one artificial lentic lagoon, all connected with the Río de la Plata estuary. The 81.53% were infested with different symbiotic (sensu lato) species. Among the Platyhelminthes, the… More >

Lutz EE, HD Merchán, AE Morant^*

Phyton-International Journal of Experimental Botany, Vol.75, pp. 85-89, 2006, DOI:10.32604/phyton.2006.75.085

Abstract Management of a double purpose wheat is not easy. Therefore, a simpler management alternative was studied: the mixture of two wheat varieties, one of long- cycle and the other one of short-cycle. Research was effected in the experimental field of the Asociación of Cooperativas Argentinas (38º 36´S, 61º 58´O and 122 m asl), 15 Km SW of Cabildo (Bs. As), in the semi-arid wheat subregion V S. At this place, forage and grain production of a suitable double-purpose wheat (ProINTA Pincén) was compared to its mixture with a short-cycle variety (Cooperación Calquín), either in the More >

E. Abhilash¹, M.A. Joseph¹, Prasad Krishna¹

FDMP-Fluid Dynamics & Materials Processing, Vol.2, No.3, pp. 211-220, 2006, DOI:10.3970/fdmp.2006.002.211

Abstract Aluminium-Silicon alloys are in high de-mand as an engineering material for automotive,aerospace and other engineering applications. Mechanical properties of Al-Si alloys depend not only on chemical composition but also more importantly on microstructural features such as dendritic alpha-aluminiumphase and eutectic silicon particles. As an additive to Al-Si alloys, sodium improves mechanical properties byforming finer and fewer needles like microstructures.Thus, prediction of the macro and microstructures obtained at the end of the solidification is of great interest for the manufacturer of aluminium alloys. Neuralnetworks are sophisticated nonlinear regression routinesthat, when properly “trained”, allow for the identificationof More >

Meghan H. Hoskins^*, Cheng Dong^∗,†

Molecular & Cellular Biomechanics, Vol.3, No.2, pp. 79-88, 2006, DOI:10.3970/mcb.2006.003.079

Abstract It has been determined previously that polymorphonuclear leukocytes, or PMNs, can facilitate melanoma cell extravasation through the endothelium under shear conditions [1,2]. The interactions between melanoma cells and PMNs are mediated by the β₂-integrins expressed by PMNs and intercellular adhesion molecules (ICAM-1) expressed on melanoma cells. In this study, the kinetics of these interactions was studied using a parallel plate flow chamber. The dissociation rates were calculated under low force conditions for ICAM-1 interactions with both β₂-integrins, LFA-1 (CD11a/CD18) and Mac-1 (CD11b/CD18), together and separately by using functional blocking antibodies on PMNs. The kinetics of PMNs More >

C.C. Tsai¹, Y.C. Lin², D.L. Young^2,3, S.N. Atluri⁴

CMES-Computer Modeling in Engineering & Sciences, Vol.16, No.2, pp. 103-114, 2006, DOI:10.3970/cmes.2006.016.103

Abstract In the applications of the method of fundamental solutions, locations of sources are treated either as variables or a priori known constants. In which, the former results in a nonlinear optimization problem and the other has to face the problem of locating sources. Theoretically, farther sources results in worse conditioning and better accuracy. In this paper, a practical procedure is provided to locate the sources for various time-independent operators, including Laplacian, Helmholtz operator, modified Helmholtz operator, and biharmonic operator. Wherein, the procedure is developed through systematic numerical experiments for relations among the accuracy, condition number, and More >