Search results for "press"

Advances in ventilatory treatment for OSAS

2021

Continuous positive airway pressure (CPAP) is the most widely used treatment for obstructive sleep apnea (OSA), and was established four decades ago. An alternative option is to use bilevel ventilation, in order to improve compliance to treatment especially in patients who need a high therapeutic pressure to prevent nocturnal respiratory events. Automatic CPAP or bilevel ventilation are also established among OSA therapeutic choices, and are generally indicated in cases of highly variable therapeutic pressure. The major advances in the field regard OSAS in the context of uncomplicated obesity hypoventilation syndrome (OHS), in which either CPAP or bilevel ventilation yield comparable result…

Conservation status of the Italian flora under the 92/43/EEC ‘Habitats’ Directive

2021

The results of the 4th National Report for the Italian flora under the 92/43/EEC ‘Habitats’ Directive are presented. The outcomes showed a general negative conservation status for plant species, with the worst situation being in the Mediterranean bioregion. At the National level, significant monitoring and conservation activities are required.

Parametric sensitivity of a CFD model concerning the hydrodynamics of trickle-bed reactor (TBR)

2016

Abstract The aim of the present study was to investigate the sensitivity of a multiphase Eulerian CFD model with respect to relations defining drag forces between phases. The mean relative error as well as standard deviation of experimental and computed values of pressure gradient and average liquid holdup were used as validation criteria of the model. Comparative basis for simulations was our own data-base obtained in experiments carried out in a TBR operating at a co-current downward gas and liquid flow. Estimated errors showed that the classical equations of Attou et al. (1999) defining the friction factors Fjk approximate experimental values of hydrodynamic parameters with the best agre…

A Novel Pathophysiological Mechanism Contributing to Trigeminal Neuralgia

2016

Trigeminal neuralgia (TN) is a form of neuropathic pain that affects the fifth cranial nerve, the most widely distributed nerve in the head. Although TN has been associated with a variety of pathological conditions, neurovascular compression on the trigeminal nerve, as it exits the brain stem, is the most frequent reported cause. This compression provides a progressive demyelination of the nerve and a subsequent aberrant neural transmission. Although several studies have clarified some physiopathological mechanisms underlying TN, the molecular basis remains vague. Very recently the substitution of methionine 136 by valine (MET126Val) in sodium channel Nav1.6 in a case study of typical TN ha…

Evaluación y caracterización biomecánica de los trinquetes de pelota valenciana. (Biomechanical assessment and characterization of the Valencian ball…

2012

El trinquete es la instalacion de referencia en la practica de la pelota valenciana, donde se juegan las modalidades profesionales de escala i corda y raspall. Sin embargo, no existe una normativa ni procedimientos de ensayo especificos que permitan definir las caracteristicas mecanicas que deben reunir paredes y pavimento del trinquete, para que los jugadores tengan una practica segura y optimicen su rendimiento. El objetivo de este estudio fue analizar diferentes variables mecanicas en las instalaciones de juego, determinar los procedimientos de ensayo mas adecuados y, finalmente, proponer unos valores mecanicos que definan una instalacion de calidad. Los estudios se llevaron a cabo en 10…

The troubled identities in the relationship between peers and the role of the viewer

2012

The focus of paper considers the bullying as a state of "oppression" caused by the difficult definition of identity by many teenagers. Today, the violence between peers is characterized as one of the most effective strategies for the construction of atypical identity or "troubled identity", in specific relational contexts (frames)among peer.

Identification of mycorrhiza-regulated genes with arbuscule development-related expression profile

2004

Suppressive subtractive hybridisation was applied to the analysis of late stage arbuscular mycorrhizal development in pea. 96 cDNA clones were amplified and 81, which carried fragments more than 200 nt in size, were sequence analysed. Among 67 unique fragments, 10 showed no homology and 10 were similar to sequences with unknown function. RNA accumulation of the corresponding 67 genes was analysed by hybridisation of macro-arrays. The cDNAs used as probes were derived from roots of wild type and late mutant pea genotypes, inoculated or not with the AM fungus Glomus mosseae. After calibration, a more than 2.5-fold mycorrhiza-induced RNA accumulation was detected in two independent experiments…

caracterization of a 4.6 kb upstream region necessary for the specific alfa2 neural tubulin gene expression in p. lividus embryos

2007

Transcriptional regulation of Tubulin α2 gene in Paracentrotus lividus.

2009

The PlTα2 is a sea urchin Paracentrotus lividus gene coding for a neural isotype of alfa tubulin. Expression of Tα2 gene is temporally activated from the blastula stage and spatially confined to the neural territory of the embryo. In order to investigate cis-regulatory elements that control this spatio-temporal pattern we performed functional experiment microinjecting several constructs containing different portion of Tα2 promoter. Moreover quantitative chromatin immune-precipitation experiments were performed to evaluate a possible involvement of chromatin modifications in regulation of Tα2 gene expression.

Depressive symptoms and long-term income: The Young Finns Study

2016

Abstract Background Higher depressive symptoms have been associated with lower future income. However, studies examining this issue have had limited follow-up times and have used self-reported measures of income. Also, possible confounders or mediators have not been accounted. Methods 971 women and 738 men were selected from the ongoing prospective Young Finns Study (YFS) that began in 1980. Depressive symptoms were measured in 1992 when participants were from 15 to 30 years old. Information on annual income and earnings from 1993 to 2010 were obtained from the Finnish Longitudinal Employer-Employee Data (FLEED) of Statistics Finland and linked to the YFS. Results Higher depressive symptoms…