Natural language processing analysis of the psychosocial stressors of mental health disorders during the pandemic.

Over the past few years, the COVID-19 pandemic has exerted various impacts on the world, notably concerning mental health. Nevertheless, the precise influence of psychosocial stressors on this mental health crisis remains largely unexplored. In this study, we employ natural language processing to examine chat text from a mental health helpline.

Citizens at the forefront of the constitutional debate: Voluntary citizen participation determinants and emergent content in Chile.

In the past few decades, constitution-making processes have shifted from being undertakings performed by elites and closed off from the public to ones incorporating democratic mechanisms. Little is known, however, about the determinants of voluntary public participation and how they affect the outcomes of the deliberative process in terms of content and quality. Here, we study the process of constituent involvement in the rewriting of Chile's constitution in 2016.

Attenuation of low-frequency sound in water containing dense bubble clouds.

Recently, the attenuation of sound propagating through a bubble cloud has been a subject of investigation due to its ability to mitigate low-frequency underwater noise from anthropogenic sources. The primary purpose of this work was to explore the use of bubbles to attenuate low-frequency underwater sound in a laboratory tank, when multiple scattering between bubbles is significant and the classic theory cannot be used. Bubbles of 1 mm radius were generated using a commercial fish tank air pump and air diffusers.