INTRODUCTION Urinary stone disease is a major urological condition. Endourologic techniques have influenced the clinical approach and outcomes. Open surgery holds a historic importance in the management of most conditions. However, complex kidney stone burden may be amenable to successful results with open stone surgery. In this article, we report our eighteen cases of complex urinary stone dis...

The collection of the rough set pairs of an approximation (U, R) can be made into a Stone algebra by defining two binary operators and one unary operator on the pairs. By introducing a more unary operator, one can get a regular double Stone algebra to describe the rough set pairs of an approximation space. Sequent calculi corresponding to the rough alg...

From the authors: We would like to thank D. Weiler Ravell and H. Bishara for their comments about our recent paper [1], and take this opportunity to reply. While their observation that 63.2% of our cohort already had silicosis negates the definition of “early diagnosis” is correct, 36.8% of the exposed workers had neither a previous diagnosis of silicosis nor clinical symptoms, and they were co...

PURPOSE To evaluate factors affecting the success rate of stone fragmentation and stone-free rate after extracorporeal shockwave lithotripsy (SWL) in treatment of upper urinary tract stones. MATERIALS AND METHODS A total of 121 patients with upper urinary tract calculi underwent SWL treatment. RESULTS Success rate of stone fragmentation after SWL was 73.6% (89/121). In 89 patients who had s...

OBJECTIVES To investigate the effect of stone fragmentation on late stone recurrence by comparing the outcome of extracorporeal shockwave lithotripsy (ESWL) and non-fragmenting percutaneous nephrolithotomy (PCNL), and to investigate factors contributing to recurrent calculi. PATIENTS AND METHODS We evaluated stone recurrence in 647 patients who initially achieved a stone-free status after ESW...

There can be many reasons for engineers to place the footings near a slope such as leakage of suitable sites or architectural considerations. One of the approaches to increase the amount of bearing capacity, especially in soft soils, is adding stone columns to the soil. In this research, the behavior of a strip footing placed near a stone column reinforced clayey slope was investigated. For thi...

OBJECTIVE To assess the prediction of stone clearance and complications of percutaneous nephrolithotomy (PCNL) using the 'STONE' nephrolithometry score, assessing stone size, tract length (skin-to-stone distance), degree of obstruction, number of calyces involved and stone essence (density). PATIENTS AND METHODS This was a prospective study of patients undergoing single-tract PCNL while prone...