Construction and First Validation of a French Scale of Environmental Harassment at Work (EHWS)

Harassment is a form of violence that is increasingly reported in the world of work and has given rise to numerous studies. This article presents the results of a series of five studies to construct and validate the French Environmental Harassment at Work Scale-EHWS. Four hundred and four people employed in various professional sectors (health, education or services) participated in the five studies. A questionnaire of Environmental Harassment at Work was constructed (Study 1). Study 2 revealed a four-dimensional factor structure, which was confirmed by confirmatory factor analysis (Study 3). The questionnaire was shown to have good reliability (Study 4) and convergent validity (Study 5). The EHWS could be a valuable tool for human resource managers to assess environmental harassment in the organisation, and also for occupational health and safety organisations to highlight the nature of environmental harassment, how it can be reported and prevente

A practical perspective on the potential of rechargeable Mg batteries

Emerging energy storage systems based on abundant and cost-effective materials are key to overcome the global energy and climate crisis of the 21st century. Rechargeable Magnesium Batteries (RMB), based on Earth-abundant magnesium, can provide a cheap and environmentally responsible alternative to the benchmark Li-ion technology, especially for large energy storage applications. Currently, RMB technology is the subject of intense research efforts at laboratory scale. However, these emerging approaches must be placed in a real-world perspective to ensure that they satisfy key technological requirements. In an attempt to bridge the gap between laboratory advancements and industrial development demands, herein, we report the first non-aqueous multilayer RMB pouch cell prototypes and propose a roadmap for a new advanced RMB chemistry. Through this work, we aim to show the great unrealized potential of RMBs.This work was funded by European Union's Horizon 2020 research and innovation program under the FET Proactive call with grant agreement no 824066 via the “E-MAGIC” project

A practical perspective on the potential of rechargeable Mg batteries

Emerging energy storage systems based on abundant and cost-effective materials are key to overcome the global energy and climate crisis of the 21st century. Rechargeable Magnesium Batteries (RMB), based on Earth-abundant magnesium, can provide a cheap and environmentally responsible alternative to the benchmark Li-ion technology, especially for large energy storage applications. Currently, RMB technology is the subject of intense research efforts at laboratory scale. However, these emerging approaches must be placed in a real-world perspective to ensure that they satisfy key technological requirements. In an attempt to bridge the gap between laboratory advancements and industrial development demands, herein, we report the first non-aqueous multilayer RMB pouch cell prototypes and propose a roadmap for a new advanced RMB chemistry. Through this work, we aim to show the great unrealized potential of RMBs

Internal pressure in superconducting Cu intercalated Bi2Se3

Angle-resolved photoemission spectroscopy is used to study the band-structure of superconducting electrochemically intercalated Cu$_x$Bi$_2$Se$_3$. We find that in these samples the band-gap at the $\Gamma$ point is much larger than in pristine Bi$_2$Se$_3$. Comparison to the results of band-structure calculations indicates that the origin of this large gap is internal stress caused by disorder created by the Cu intercalation. We suggest that the internal pressure may be necessary for superconductivity in Cu$_x$Bi$_2$Se$_3$.Comment: To be published in PR

Lithium Ion Intercalation Performance of Niobium Oxides: KNb5O13 and K6Nb10.8O30

The position of the Nb5+ Nb4 couple in two oxide hosts, KNb5O13 and K6Nb10.8O 30, that exhibit reversible Li insertion in the targeted voltage range has been reported. Polycrystalline KNb5O13 and K6Nb10.8O30, were prepared by conventional solid state reaction (SSR). Carbonate-based electrolytes are presently used in rechargeable Li batteries. The potassium-niobate family having tunnels occupied by K+ ions offer reversible insertion of Li at acceptable capacities with voltages within the targeted voltage range of 1.0-1.5 Versus Li+/ Li. Improvement in reversible capacity should be possible with smaller particles crystallite size has a strong influence on reversible capacity, with nanocrystalline A1NbO4 and TiO2.close241