Here we prove the existence of non-locally free real theta-characteristics on any real reduced projective curve.

A logarithmic term is applied to account for the charge transfer overvoltage with most empirical polarization curve fitting equations for polymer electrolyte membrane fuel cells. The logarithmic term applied with state-of-the-art fitting equations is proportional to the logarithm of the cell output current density. This provides good fitting characteristics with large current densities, but res...

Let Dn denote the n-punctured disk in the complex plane, where the punctures are on the real axis. An n-braid α is said to be reducible if there exists an essential curve system C in Dn, called a reduction system of α, such that α ∗ C = C where α ∗ C denotes the action of the braid α on the curve system C. A curve system C in Dn is said to be standard if each of its components is isotopic to a ...

abstract background: patient satisfaction with the cosmetic result of spinal fusion surgery was studied in 40 cases of adolescent idiopathic scoliosis. neutral or dissatisfied patients were compared with satisfied patients in several physical and psychological characteristics. the aim of the study was to determine whether adolescents generally report satisfaction with the postoperative appearan...

 Abstract Background: Patient satisfaction with the cosmetic result of spinal fusion surgery was studied in 40 cases of adolescent idiopathic scoliosis. Neutral or dissatisfied patients were compared with satisfied patients in several physical and psychological characteristics. The aim of the study was to determine whether adolescents generally report satisfaction with the postoperative appeara...

introduction: water and soil retention curve is one of the most important properties of porous media to obtain in a laboratory retention curve and time associated with errors. for this reason, researchers have proposed techniques that help them to more easily acquired characteristic curve. one of these methods is the use of fractal geometry. determining the relationship between particle size di...

Background: To retrospectively evaluate whether quantitative information derived from spectral imaging can improve the differential diagnosis of pancreatic cystic masses including pancreatic solid pseudopapillary epithelial neoplasms (SPENs), mucin- producing cysts and pseudocysts. Materials and Methods: From June 2015 to October 2017, 56 patients (22 pseudocysts, 18 mucin-producing cysts and 1...

State-of-the-art data analysis in production allows engineers to characterize reservoirs using production data. This saves companies large sums that should otherwise be spend on well testing and reservoir simulation and modeling. There are two shortcomings with today’s production data analysis: It needs bottom-hole or well-head pressure data in addition to data for rating reservoirs’ characteri...