Standard Versus Real Versus Fake Braces: An Elemental Composition Analysis

Custom-fit versus premanufactured braces.

Custom-made and off-the-shelf functional knee orthoses from four manufacturers were evaluated. Anterior tibial translation testing was performed using a pneumatic mechanical surrogated knee. The mechanical surrogate was interfaced with a servohydraulic materials testing system, which applied all anterior/posterior displacements to an ultimate anterior load of 400 N. Comparison of the individual...

Real Fake Real Fake

Tubeless versus standard percutaneous nephrolithotomy: an update meta-analysis

BACKGROUND To update a previously published systematic review and meta-analysis on the efficacy and safety of tubeless percutaneous nephrolithotomy (PCNL). METHODS A systematic literature search of EMBASE, PubMed, Web of Science, and the Cochrane Library was performed to confirm relevant studies. The scientific literature was screened in accordance with the predetermined inclusion and exclusi...

Preoperative Medical Evaluation in Elective Surgery versus Standard Criteria

Background: The routine use of preoperative appropriate paraclinic testing is useful in patients scheduled to undergo elective surgery. The purpose of this study was to assess the prevalence of unnecessary preoperative evaluation performed for patients undergoing elective surgeries.Methods: This descriptive analytic study was performed to assess the patterns of preoperative evaluation tests on ...

Intersection cuts - standard versus restricted

This note is meant to elucidate the difference between intersection cuts as originally defined, and intersection cuts as defined in the more recent literature. It also states a basic property of intersection cuts under their original definition. Intersection cuts for mixed integer programs were introduced in the early 1970’s [1, 2] as inequalities obtained by intersecting the extreme rays of th...