Isotropy of Cosmic Rays beyond 10^{20} eV Favors Their Heavy Mass Composition.

We report an estimation of the injected mass composition of ultrahigh energy cosmic rays (UHECRs) at energies higher than 10 EeV. The composition is inferred from an energy-dependent sky distribution of UHECR events observed by the Telescope Array surface detector by comparing it to the Large Scale Structure of the local Universe. In the case of negligible extragalactic magnetic fields (EGMFs), the results are consistent with a relatively heavy injected composition at E∼10  EeV that becomes lighter up to E∼100  EeV, while the composition at E>100  EeV is very heavy.

Synthesis of 2D Gallium Sulfide with Ultraviolet Emission by MOCVD.

Two-dimensional (2D) materials exhibit the potential to transform semiconductor technology. Their rich compositional and stacking varieties allow tailoring materials' properties toward device applications. Monolayer to multilayer gallium sulfide (GaS) with its ultraviolet band gap, which can be tuned by varying the layer number, holds promise for solar-blind photodiodes and light-emitting diodes as applications.

A qualitative analysis of Swedish sport psychology practitioners' experience of a continued professional development program.

Although sport psychology practitioners and researchers acknowledge the importance of continued professional development (CPD) for professional effectiveness and excellence, few studies have explored the influence of CPD activities on the practitioners' practice and thinking. This study examined qualified Swedish sport psychology practitioners' experiences of engaging in a CPD program and how it impacted their professional development. The Swedish Sports Confederation offers a CPD program that targets performance enhancement services and psychotherapy for sport psychology practitioners.

Acute care nurse managers' definitions of and barriers to well-being: A thematic analysis of open-ended survey questions.

Background: During the COVID-19 pandemic, acute care nurse managers functioned in a critical role by helping to advance the mission and goals of their organization while navigating a rapidly evolving healthcare landscape. This resulted in high levels of ongoing job-related stress which is linked to negative physical, psychological, and job-related outcomes. Little is known about the perceptions regarding their own professional well-being during this time.