192 research outputs found

    Metastatic carcinoma of breast in the urinary bladder

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    Application of Equity Sensitivity Theory to Problem-Solving Approaches in Construction Dispute Negotiation

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    This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at https://ascelibrary.org/doi/10.1061/%28ASCE%29ME.1943-5479.0000031Publishe

    The factorization of M-channel FIR and IIR cosine-modulated filter banks and their multiplier-less realizations using sopot coefficients

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    The 47th Midwest Symposium on Circuits and Systems Conference Proceedings, Salt Lake City, Utah, USA, 25-28 July 2004This paper proposes a new factorization for the M-channel perfect reconstruction (PR) IIR Cosine-Modulated filter banks (CMFB) proposed previously by the authors. This factorization, which is based on the lifting scheme, is also complete for the PR FIR CMFB as well as the general two-channel PR IIR filter banks if the determinant of the polyphase matrix is equal to constant multiplies of signal delays. It can be used to convert a numerically optimized nearly PR CMFB to a structurally PR system. Furthermore, the arithmetic complexity of the FB using this structure can be reduced asymptotically by a factor of two. When the forward and inverse transforms are implemented with the same set of SOPOT coefficients, a multiplier-less CMFB can be obtained. Its arithmetic complexity is further reduced and it becomes very attractive for VLSI implementation.published_or_final_versio

    Image registration in intra-oral radiography

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    Image registration is one of the image processing methods which is widely used in computer vision, pattern recognition, and medical imaging. In digital subtraction radiography, image registration is one of the important prerequisites to match the reference and subsequent images. In this paper, we propose an automatic non-rigid registration method namely curvature-based registration that relies on a curvature based penalizing term and its application on dental radiography. The regularizing term of this intensity-based registration approach provides affine linear transformation so that pre-registration step is no longer necessary. This leads to faster and more reliable solutions. The implementation of this approach is based on the numerical solution of the underlying Euler-Lagrange equations. In addition, a comparison between this algorithm and Linear Alignment Method (LAM) with 20 image pairs is presented. © 2005 IEEE.published_or_final_versio

    Subinguinal microsurgical varicocelectomy for male factor subfertility: a ten-year experience

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    Disease spectrum and treatment patterns in a local male infertility clinic

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    Radical versus partial nephrectomy for T1 renal cancer: equivalent oncological outcome with better renal preservation

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    OBJECTIVE: To examine and compare the outcome of radical and partial nephrectomy for T1 renal cancer (≤7 cm) in our centre. PATIENTS AND METHOD: Between January 2005 and December 2010, 38 (44.2%) radical nephrectomies (RN) and 48 (55.8%) partial nephrectomies (PN) were performed for solitary, T1 renal cancer in patients with normal contralateral kidney. GFR was estimated with the Modification of Diet in Renal Disease (MDRD) formula. CKD was defined as GFR lower than 60 mL/min per 1.73 m2. Cox regression model was used to compare overall survival and new onset of CKD. RESULTS: At last follow-up 32 RN patients (84.2%) and 43 PN patients (89.6%) were alive. There was no significant difference in overall survival between RN and PN patients (hazard ratio, 0.673; 95% confidence interval [CI], 0.128–3.529; p = 0.64). 1 RN patient (2.6%) developed systemic metastasis. RN patients had significantly higher reduction rate in GFR (35.4% vs 12.6%, p = 0.000), and higher risk in developing CKD (hazard ratio, 6.308; 95% CI, 2.074–19.189, p = 0.001). CONCLUSION: Relative to RN in managing T1 renal cancer, PN has equivalent survival and oncological clearance, with superiority in renal preservation and lower incidence of new CKD onset. PN should be the treatment of choice for T1 renal cancer.postprin

    Predictive factors for extracorporeal shockwave lithotripsy success in ureteric stones, does skin-stone distance and hounsfield unit matter?

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    OBJECTIVE: To evaluate the usefulness of measuring stone skin distance and stone attenuation values by non-contrast computed tomography for predicting treatment outcome of ureteric stones by extracorporeal shockwave lithotripsy (ESWL). PATIENT AND METHOD : Retrospective review of 66 patients who underwent ESWL for ureteric stones with pre-ESWL NCCT in 2010–2012. Subjects were stratified into 2 groups, successful ESWL and failed ESWL, with ESWL success defined as stone fragment less than 4 mm at 6 weeks after ESWL. Patient age, sex, stone size, stone location, laterality, shockwave energy, number of shockwave administered, Hounsfield unit (HU), skin to stone distance (SSD), presence of hydronephrosis, pre-ESWL JJ stent or PCN were studied as predictive factors. RESULTS : Patient demographics and stone characteristics were similar between the 2 groups. On univariate analysis, the mean stone size for successful ESWL was 7.9 mm compared with 10.2 mm in the failure group (P = 0.02). For the skin-stone distance, the mean distance for the successful group was 95 mm compared with 104 mm in the failure group (P = 0.04). Concerning the Hounsfield Unit, a mean of 1034 HU was found in the successful compared with 1129 HU in the failure group (P = 0.16) CONCLUSION : Skin to stone distance on non-contrast CT scan is a useful predictive factors for ESWL success for ureteric stones.postprin

    Failure of phylogeny inferred from multilocus sequence typing to represent bacterial phylogeny

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