Search results for "CONST"

An Hypervolume based constraint handling technique for multi-objective optimization problems

2011

Formulation of structural optimization problems usually leads to the individuation of one or more objective functions to be minimized under different constraints. Many multi-objective evolutionary algorithms are approached by a Pareto-compliant ranking method, where no a priori information on the problem is needed and the concept of non-dominated solutions is used. In this paper a constraint handling technique based on the concept of hypervolume indicator is presented. Initially proposed to compare different multi-objective algorithms hypervolume indicator is the only single set quality measure to reflects the dominance of solution’s sets. The constraint handling technique proposed use an e…

“Still Alive, Nigga” : Multi-Semiotic Constructions of Self as Other in Finnish Rap Music Videos

2017

Is Environmental Sustainability Also “Economically Efficient”? The Case of the “SOStain” Certification for Sicilian Sparkling Wines

2022

The Italian wine industry is strongly committed to sustainability. Among the numerous sustainability certifications and programs implemented in Italy for the wine sector, SOStain is the oldest at the regional level. The SOStain Foundation promotes the voluntary application of a sustainability program, developed in 2010 in Sicily (Southern Italy). The requirements of the SOStain specifications are connected to the new CAP 2023–2027 objectives; therefore, companies preparing for the new challenges of future winemaking might be interested in joining the SOStain Foundation for greening production practices. The objective of this study was to learn producers’ and consumers’ opinions about motiva…

The focus and timing of gaze matters : Investigating collaborative knowledge construction in a simulation-based environment by combined video and eye…

2022

Although eye tracking has been successfully used in science education research, exploiting its potential in collaborative knowledge construction has remained sporadic. This article presents a novel approach for studying collaborative knowledge construction in a simulation-based environment by combining both the spatial and temporal dimensions of eye-tracking data with video data. For this purpose, we have investigated two undergraduate physics student pairs solving an electrostatics problem in a simulation-based environment via Zoom. The analysis of the video data of the students’ conversations focused on the different collaborative knowledge construction levels (new idea, explication, eval…

Misalignment of Spectral Data: Constrained Optimization in a Functional Data Analysis Framework

2022

Across several branches of sciences, a large number of applications involves data represented as functions and curves, for which functional data analysis can play a central role in solving a variety of problem formulations. With some thecnologies, the obtained data are spectra containing a vast amount of information concerning the composition of a sample: in order to infer the chemical composition of the materials from spectra, functional data analysis offers a valuable mean for characterizing the spectral response through identification of peaks position and intensity. The collection of data from different measurement may exhibit similar peak pattern but display misalignment in their peaks…

Constant Power Model in Arm Rotation—A New Approach to Hill’s Equation

2014

The purpose of this study was to further develop the constant power model of a previous study and to provide the final solution of Hill’s force-velocity equation. Forearm and whole arm rotations of three different subjects were performed downwards (elbow and shoulder extension) and upwards (elbow and shoulder flexion) with maximum velocity. These arm rotations were recorded with a special camera system and the theoretically derived model of constant maximum power was fitted to the experimentally measured data. The moment of inertia of the arm sectors was calculated using immersion technique for determining accurate values of friction coefficients of elbow and whole arm rotations. The experi…

Amorphous Polyphosphate and Ca‐Carbonate Nanoparticles Improve the Self‐Healing Properties of both Technical and Medical Cements

2020

Cement is used both as a construction material and for medical applications. Previously, it has been shown that the physiological polymer inorganic polyphosphate (polyP) is morphogenetically active in regeneration of skin, bone, and cartilage. The present study investigates the question if this polymer is also a suitable additive to improve the self-healing capacity not only of construction cement but also of inorganic bone void fillers. For the application in the cement, two different polyP-based amorphous nanoparticles (NP) are prepared, amorphous Ca-polyP NP and amorphous Ca-carbonate (ACC) NP. The particles are integrated into poly(methyl methacrylate) in a concentration ratio of 1:10. …

Urethral Reconstruction in Anterolateral Thigh Flap Phalloplasty: A 93-Case Experience

2019

BACKGROUND: Urethral reconstruction in anterolateral thigh flap phalloplasty cannot always be accomplished with one flap, and the ideal technique has not been established yet. In this article, the authors' experience with urethral reconstruction in 93 anterolateral thigh flap phalloplasties is reported. METHODS: Ninety-three anterolateral thigh phalloplasties performed over 13 years at a single center were retrospectively reviewed to evaluate outcomes of the different urethral reconstruction techniques used: anterolateral thigh alone without urethral reconstruction (n = 7), tube-in-tube anterolateral thigh flap (n = 5), prelaminated anterolateral thigh flap with a skin graft (n = 8), antero…

Lateral Ligament Reconstruction

2019

The lateral collateral ligament complex represents the primary lateral elbow ligament stabilizers. In cases of lateral elbow instability, surgical treatment is recommended. Repair should be anatomical and should restore stability to the elbow in order to permit an early active range of motion. Anatomic repair of soft tissue avulsions from bone can be performed with trans-osseous suture or suture anchors. Reconstruction may be required in severe cases and where primary repair is not possible. This chapter describes the surgical techniques for repair and reconstruction of the lateral collateral ligament of the elbow.

Case series of fluoroscopic findings and 3D reconstruction of human spinal MRIs of the space of Okada.

2020

Objective To better understand the unexpected spread of contrast medium observed by conventional fluoroscopic X-ray images during standard neuraxial techniques used in the treatment of pain. The support of 3D reconstruction of MRI images of structures within the lumbar spine was used to better understand the space of Okada. Methods Lumbar facet joint and epidural corticosteroid injections in five patients under fluoroscopic guidance with loss of resistance to air or saline to identify the facet joints or epidural space. Next, in a retrospective study, the authors examined the retrodural space of Okada and the neighboring tissues with 3D reconstruction of spinal MRIs of seven patients withou…