INTRODUCTION Torsion of the gallbladder in the pediatric population is rare. A nonspecific clinical presentation is characteristic, which frequently contributes to diagnostic uncertainty. CASE DESCRIPTION We report a case of gallbladder torsion in a 6-y-old male with abdominal distention and lethargy accompanied by a low-grade leukocytosis. An abdominal computed tomography scan suggested the ...

The practice of medicine links diagnosis to treatment. However, for many diagnosed conditions diagnosis and treatment may not affect health outcome. Examples include low-grade cancers that do not influence life expectancy or quality of life. Further, there is considerable uncertainty about the point along a biologic continuum where treatment should begin. Changes in diagnostic thresholds often ...

Copyright © 2015 Massachusetts Medical Society. BACKGROUND Diffuse low-grade and intermediate-grade gliomas (which together make up the lower-grade gliomas, World Health Organization grades II and III) have highly variable clinical behavior that is not adequately predicted on the basis of histologic class. Some are indolent; others quickly progress to glioblastoma. The uncertainty is compounded...

mining companies to determine a resource model of the tonnage and head grade of a potential orebody, which is one of the first and most critical inputs underpinning any mining project. The prediction of the grade, tonnage, and recoverable metal for a particular mining plan and the corresponding financial forecast constitute the main technical risks in mineral resource evaluation. The convention...

This study developed an Adolescents’ Uncertainty Scale (AUS), with the aim of understanding individual differences in uncertainty among adolescents. In pretest phase, 507 ninth-grade students were recruited. After exploratory factor analyses, a 25-item AUS four dimensions—irresoluteness, instability, lack self-knowledge, and future—was obtained. During formal testing 3106 ninth grade The intern...

It is significant to discover a global optimization in the problems dealing with large dimensional scales to increase the quality of decision-making in the mining operation. It has been broadly confirmed that the long-term production scheduling (LTPS) problem performs a main role in mining projects to develop the performance regarding the obtainability of constraints, while maximizing the whole...