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Factors associated with higher occupational balance in people with anxiety and/or depression who require occupational therapy treatment

Background: Anxiety and depressive disorders are associated with problems with everyday occupations, including difficulties achieving occupational balance. The aim of this cross-sectional study was to describe occupational balance in people suffering from anxiety and/or depression and the factors that are associated with better self-rated occupational balance. Material: One hundred and eighteen pa

Self-induced harmonic generation in a storage-ring free-electron laser

Coherent radiation from a relativistic electron beam is a valuable way to overcome the present limitations of conventional lasers and synchrotron radiation light sources. The typical scheme has electrons, directly from a linac, in a single-pass interaction with a laser pulse in the presence of a static undulator magnetic field. We demonstrate that a storage-ring free-electron laser can also achiev

Experimental characterization of nonlinear harmonic generation in planar and helical undulators

We present an experimental characterization of the process of coherent harmonic generation in single-pass free electron lasers. The harmonic radiation is obtained by seeding the electron beam stored in the Elettra storage ring with a Ti:sapphire laser. Different methods for generating harmonics are compared between them, and a detailed characterization of the emitted light is performed for differe

Generation of ultrashort coherent vacuum ultraviolet pulses using electron storage rings : A new bright light source for experiments

We demonstrate for the first time that seeded harmonic generation on electron storage rings can produce coherent optical pulses in the vacuum ultraviolet spectral range. The experiment is performed at Elettra, where coherent pulses are generated at 132nm, with a duration of about 100fs. The light source has a repetition rate of 1kHz and adjustable polarization; it is very bright, with a peak power

Multi-scale plasticity modeling: coupled discrete dislocation and continuum crystal plasticity

A hierarchical multi-scale model that couples a region of material described by discrete dislocation plasticity to a surrounding region described by conventional crystal plasticity is presented. The coupled model is aimed at capturing non-classical plasticity effects such as the long-range stresses associated with a density of geometrically necessary dislocations and source limited plasticity, whi

Economic Crisis, Manorialism, and Demographic Response: Southern Sweden in the Preindustrial Period

Previous research has consistently found demographic responses to grain price fluctuations in preindustrial Europe, both at macro and micro level. Grain prices serve as a summary measure of the workings of the preindustrial economy, reflecting not only local harvest conditions but trade patterns and market integration. All over preindustrial Europe the manorial estate was an important institution