Accurate recording of spinal posture with simple and accessible measurement devices in clinical practice may lead to spinal loading optimization in occupations related to prolonged sitting and standing postures. Therefore, the purpose of this study was to establish the level of reliability of sagittal lumbosacral posture in quiet standing and the validity of the method in differentiating betwee...

On the example of the road pavement of a semi-rigid structure, this paper presents the concept of the parameters estimation of the experimental section tested after 30 years of use. In the context of the lack of technical history data of the analyzed road section, the resultant (conventional multilayer system, which is pavement and its subgrade) stiffness was analyzed in relation to the moment ...

Non-specific low back pain is defined as low back pain not attributable to a recognizable, known specific pathology (e.g., infection, tumor, osteoporosis, fracture, structural deformity, inflammatory disorder, radicular syndrome, or caudaequina syndrome). Low back pain became one of the biggest problems for public health systems in the western world during the second half of the 20th century an...

[1] Subduction zone magmas are characterized by high concentrations of H2O, presumably derived from the subducted plate and ultimately responsible for melting at this tectonic setting. Previous studies of the role of water during mantle melting beneath back-arc basins found positive correlations between the H2O concentration of the mantle (H2Oo) and the extent of melting (F), in contrast to the...

Gulf Stream warm-core rings (WCRs) impinging onto the Mid-Atlantic Bight (MAB) shelf edge can induce substantial water exchange between and slope seas. Combining satellite imagery idealized ocean models, this study investigates long-neglected influence of submarine canyons on WCR impingement process. Satellite images show onshore intrusion concentrated near MAB shelf-break canyons, indicating c...

We propose a new measure (phase-slope index) to estimate the direction of information flux in multivariate time series. This measure (a) is insensitive to mixtures of independent sources, (b) gives meaningful results even if the phase spectrum is not linear, and (c) properly weights contributions from different frequencies. These properties are shown in extended simulations and contrasted to Gr...

A dramatic failure of orientation constancy is documented in the perception of downhill slopes. Contrary to naïve expectation, steep downhill slopes look shallower from the edge than they do from back from the edge. Three experiments document and quantify this failure of constancy for real and virtual surfaces using a variety of dependent measures. Two additional studies document overestimation...

Simple model flows demonstrating the combined effect of thermobaricity with either salinity variations or nonlinear temperature-dependence in the equation of state of water are investigated. An inviscid flow exhibits a three-layer behaviour, resulting in the formation of a mid-depth temperature maximum, such as is observed in some high-latitude oceans and deep lakes. This may be subsequently ov...