Search results for "sfi"

Influence of convolution filtering on coronary plaque attenuation values: observations in an ex vivo model of multislice computed tomography coronary…

2007

Attenuation variability ( measured in Hounsfield Units, HU) of human coronary plaques using multislice computed tomography (MSCT) was evaluated in an ex vivo model with increasing convolution kernels. MSCT was performed in seven ex vivo left coronary arteries sunk into oil followingthe instillation of saline (1/infinity) and a 1/50 solution of contrast material ( 400 mgI/ml iomeprol). Scan parameters were: slices/ collimation, 16/0.75 mm; rotation time, 375 ms. Four convolution kernels were used: b30f-smooth, b36f-medium smooth, b46f-medium and b60f-sharp. An experienced radiologist scored for the presence of plaques and measured the attenuation in lumen, calcified and noncalcified plaques …

Radiolucent Carbon Fiber–Reinforced Pedicle Screws for Treatment of Spinal Tumors: Advantages for Radiation Planning and Follow-Up Imaging

2016

Objective Surgical treatment of spinal tumors regularly includes spinal instrumentation with pedicle screws. Most modern pedicle screws are made of titanium alloy, which is associated with artifacts on postoperative imaging such as computed tomography and/or magnetic resonance imaging. These artifacts hamper radiation treatment planning and execution and follow-up imaging. Recently, carbon fiber–reinforced polyetheretherketone (CFRP) implants became available for posterior instrumentation with the aim to reduce imaging artifacts by implants. Methods Patients harboring spinal tumors underwent posterior stabilization using CFRP pedicle screws. Postoperative imaging was evaluated for implant a…

Muscle Activity During Unilateral vs. Bilateral Battle Rope Exercises.

2015

High training intensity is important for efficient strength gains. Although battle rope training is metabolically demanding, no studies have quantified intensity of muscle activity during this type of training. This study analyzes muscle activity during unilateral alternating waves vs. bilateral waves of battle rope training. Twenty-one volunteers participated in a repeated-measures study on 2 different occasions. Surface electromyographic signals were recorded from the anterior deltoid (AD), external oblique (OBLIQ), lumbar erector spinae (LUMB), and gluteus medius (GM) during bilateral waves and unilateral waves and were normalized to the maximum voluntary isometric contraction (MVIC). Re…

Hellēņu dimensija Eiropai : Rīgas 1. starptautiskās hellēnistikas konferences "Hellēņu pasaule un mēs" materiāli

2003

Phosphites as precursors in atomic layer deposition thin film synthesis

2021

We here demonstrate a new route for deposition of phosphorous based materials by atomic layer deposition (ALD) using the phosphites Me3PO3 or Et3PO3 as precursors. These contain phosphorous in the oxidation state (III) and are open for deposition of reduced phases by ALD. We have investigated their applicability for the synthesis of LiPO and AlPO materials and characterized their growth by means of in situ quartz crystal microbalance. Phosphites are good alternatives to the established phosphate-based synthesis routes as they have high vapor pressure and are compatible with water as a coreactant during deposition. The deposited materials have been characterized using XPS, x-ray fluorescence…

A new definition of well-behaved discrimination functions

2009

Abstract A discrimination function shows the probability or degree with which stimuli are discriminated from each other when presented in pairs. In a previous publication [Kujala, J.V., & Dzhafarov, E.N. (2008). On minima of discrimination functions. Journal of Mathematical Psychology , 52 , 116–127] we introduced a condition under which the conformity of a discrimination function with the law of Regular Minimality (which says, essentially, that “being least discriminable from” is a symmetric relation) implies the constancy of the function’s minima (i.e., the same level of discriminability of every stimulus from the stimulus least discriminable from it). This condition, referred to as “well…

Valoración medico legal de las asfixias mecánicas. Estudio especial de las ahorcaduras

2015

El diagnóstico de asfixia como causa de muerte, sigue siendo hoy día uno de los problemas más complejos de la patología forense. Esta complejidad radica, por un lado en la falta de homogeneidad terminológica y por otro en la ausencia de signos específicos ya que “a priori” la expresión de la anoxia en los distintos tejidos es similar, constituyendo signos inespecíficos de sospecha. Esto plantea la necesidad de incluir nuevos ítems en la valoración médico-legal de las asfixias incluyendo, además de los signos clásicos de asfixia, otros descritos en la literatura médica. Para ello se han analizado los datos tanto macroscópicos, como microscópicos y toxicológicos, de un total de 108 autopsias …

Two-variable logics with counting and semantic constraints

2018

In this article we discuss fragments and extensions of two-variable logics motivated by practical applications. We outline the decidability frontier, describing some of the techniques developed for deciding satisfiability and finite satisfiability, as well as characterizing their complexity.

LIPIDOMICA DELL’EPATITE CRONICA DA HCV E DELLA NAFLD. ASSOCIAZIONE TRA ACIDI GRASSI E SFINGOLIPIDI EPATICI CON IL DANNO D’ORGANO

2012

THU0469-HPR Sexual perception and sexual problems in patients with ankylosing spondylitis

2013

Background Ankylosing spondylitis (AS) is a chronic, systemic inflammatory rheumatic disease affecting the axial skeleton, but may also affect peripheral joints, tendons and internal organs. This disease which begins in the second or third decade may give rise to significant loss of function and impaired quality of life. Despite the known importance of sexuality as part of quality of life (1), only a few studies have explored this important issue in AS patients. Objectives To explore sexuality in patients with AS in regard to how satisfied they are with their sexual life and whether the patients think their sexuality is influenced by the disease. Methods This is a prospective, longitudinal,…