Ricardo Palmerola¹, Paul Smith², Vanessa Elliot², Carl T. Reese², Frank B. Mahon², Lewis E. Harpster², Nikolina Icitovic¹, Jay D. Raman^2,3

Canadian Journal of Urology, Vol.19, No.6, pp. 6542-6547, 2012

Abstract Introduction: Indications for prostate needle biopsy (PNB) include elevated serum prostate-specific antigen (PSA) and/or abnormal digital rectal examination (DRE). We evaluated a contemporary cohort of men undergoing PNB to determine cancer detection rates when stratified by DRE status.
Materials and methods: The charts of 806 men who underwent a PNB were reviewed. Serum PSA was categorized as normal or abnormal according to age-specific criteria. A normal DRE was defined as a smooth, age-appropriate, asymmetric, or uniformly enlarged prostate. An abnormal DRE was defined by either a nodule or induration. Sensitivity, specificity, and predictive values were determined for… More >

Iglesias LG¹, LY Solís-Ramos², H Viveros-Viveros³

Phyton-International Journal of Experimental Botany, Vol.81, pp. 239-246, 2012, DOI:10.32604/phyton.2012.81.239

Abstract The morphometric variation of cones, seeds and needles was evaluated in two natural populations of Pinus hartwegii at Veracruz state to estimate the percentage of phenotypic variation due to differences among populations and trees within populations. In addition, multivariate principal components, cluster and discriminate analysis was conducted to characterize the populations. Most of the traits measured on cones, seeds and needles showed significant variation both among populations and among trees within populations. Measurements of cone and seed traits used as indicators of the genetic and reproductive status of two natural populations of P. hartwegii revealed that much… More >

Shang ZH^1,2, SG Xu¹

Phyton-International Journal of Experimental Botany, Vol.81, pp. 75-79, 2012, DOI:10.32604/phyton.2012.81.075

Abstract Pedicularis kansuensis is a dominating poisonous weed, and it might have allelopathic effects on other native grasses in alpine meadows. An experiment was conducted to examine a range of concentrations of aqueous whole plant extracts (25, 12.5, 2.5, 1.25, 0.25 and 0.0 g/L) of P. kansuensis, prepared at the flowering stage on seed germination and seedling growth of two native grasses (Poa pratensis and Elymus nutans). High concentrations of aqueous extracts of P. kansuensis inhibited seed germination and seedling growth of P. pratensis (p<0.05). Most aqueous extracts of P. kansuensis had a stimulatory (p<0.05) effect on E. nutans. Our results suggest that the More >

Changsheng Wang¹, Ping Hu^1,2

CMES-Computer Modeling in Engineering & Sciences, Vol.88, No.5, pp. 325-350, 2012, DOI:10.3970/cmes.2012.088.325

Abstract Based on the Reissner-Mindlin plate theory, two 3-node triangular flat shell elements QCS31 and QCS32 are proposed by using Timoshenko's beam function within the framework of quasi-conforming technique. The exact displacement function of the Timoshenko's beam is used as the displacement on the element boundary in the bending part and the interpolated inner field function is also derived by the function. In the shear part the re-constitution technique is adopted. The drilling degrees of freedom are added in the membrane part to improve membrane behavior. The proposed elements can be used for the analysis of More >

J. Sladek¹, V. Sladek¹, P. Stanak¹, P.H. Wen², S.N. Atluri³

CMES-Computer Modeling in Engineering & Sciences, Vol.85, No.6, pp. 543-572, 2012, DOI:10.3970/cmes.2012.085.543

Abstract A meshless local Petrov-Galerkin (MLPG) method is applied to solve laminate piezoelectric plates described by the Reissner-Mindlin theory. The piezoelectric layer can be used as a sensor or actuator. A pure mechanical load or electric potential are prescribed on the top of the laminated plate. Both stationary and transient dynamic loads are analyzed here. The bending moment, the shear force and normal force expressions are obtained by integration through the laminated plate for the considered constitutive equations in each lamina. Then, the original three-dimensional (3-D) thick plate problem is reduced to a two-dimensional (2-D) problem. More >

Meelan Bul¹, Nicolas B. Delongchamps², Ewout W. Steyerberg³, Gustavo de la Roza⁴, Pim J. van Leeuwen¹, Xiaoye Zhu¹, Heidi A. van Vugt¹, Gabriel P. Haas⁵, Fritz H. Schröder¹, Monique J. Roobol¹

Canadian Journal of Urology, Vol.18, No.2, pp. 5625-5629, 2011

Abstract Introduction and objective: The Prostate Cancer Risk Indicator is a validated tool used to predict the likelihood that a screen-detected prostate cancer is indolent, partially based on lateralized sextant biopsies. Our objective was to derive correction factors for updating this model to reflect contemporary extended biopsy schemes.
Materials and methods: Post-mortem 18-core biopsy results from men who died of unrelated causes but were diagnosed with prostate cancer post-mortem were analyzed. These data included details from both biopsy samples and whole-mount pathological specimens. For each positive 18-core biopsy, the Gleason score, number of positive cores, tumor location within the… More >

Andrew C. Strine¹, David J. Grignon², Chandru P. Sundaram³

Canadian Journal of Urology, Vol.18, No.4, pp. 5856-5859, 2011

Abstract Ablative therapy has recently emerged as an option for the treatment of small renal masses (SRMs). Benign tumors and indolent renal cell carcinoma (RCC) represent a majority of these masses, although an additional but often unappreciated consideration is upper tract urothelial carcinoma (UC). We report the case of a 74-year-old man with upper tract UC presenting as a SRM without any apparent involvement of the pelvicalyceal system, leading to its inadvertent cryoablation. We also discuss the role of renal biopsy in the management of SRMs undergoing an ablative procedure. More >

Leonard G. Gomella

Canadian Journal of Urology, Vol.18, No.5, pp. 5860-5860, 2011

Abstract This article has no abstract. More >

Zhang YG, HY Dai

Phyton-International Journal of Experimental Botany, Vol.80, pp. 119-125, 2011, DOI:10.32604/phyton.2011.80.119

Abstract The photosynthetic and morphological characteristics, and microstructure of roots and shoots, were studied between columnar apple and standard apple trees derived from the crosses of ‘Fuji’ × ‘Telamon’ and ‘Gala’ × ‘Telamon’. The results showed that chlorophyll A, chlorophyll B, the content of chlorophyll A+B, and leaf area index were higher in columnar apple trees than in standard apple trees. In a day cycle, the net photosynthetic (Pn) and transpiration rates (Tr) were higher in the columnar apple trees than in standard apple trees. The daily variations of Pn and Tr were of a double… More >

Martínez Corral L¹, E Martínez-Rubin², F F lores-García³, M Vázquez-Rueda³, J Frías-Ramírez², MA Segura-Castruita²

Phyton-International Journal of Experimental Botany, Vol.80, pp. 79-84, 2011, DOI:10.32604/phyton.2011.80.079

Abstract Potato (Solanum tuberosum L.) is a crop whose production yield at national level is very low compared with that in the most productive countries. This is because it is a partially automated crop with deficient and inadequate agronomic practices, low technification levels and great quantity of work wages required per hectare of cultivation. The necessity to generate technical and modern procedures that increase crop production, quality and yield has fostered development of projects leading to obtain seedlings free of pathogens with material of high genetic, physiological and sanitary quality. Utilization of a vision system for the… More >