Optical Detection of Sliding Ferroelectric Switching in hBN with a WSe Monolayer.

When two BN layers are stacked in parallel in an AB or BA arrangement, a spontaneous out-of-plane electric polarization arises due to charge transfer in the out-of-plane B-N bonds. The ferroelectric switching from AB to BA (or BA to AB) can be achieved with a relatively small out-of-plane electric field through the in-plane sliding of one atomic layer over the other. However, the optical detection of such ferroelectric switching in hBN has not yet been demonstrated.

Impact of French lockdowns on bereavement experiences: Insight from ALCESTE analysis revealing psychological resilience and distinct grief dynamics amidst COVID-19.

At the beginning of 2020, the entire world was shocked by a global health emergency. According to the literature, fear, high mortality and health restrictions had significant psychological consequences on the population. This study evaluates the French lockdown's impact on the grieving process and how people worked through their grief.

The Absence of Funeral Rites as a Risk Factor for the French Bereaved Population.

During the COVID-19 pandemic, stringent measures were imposed in numerous countries, including France. These measures significantly disrupted societal practices, particularly mourning and funeral rituals. This study, conducted between June and September 2021 as part of the COVIDEUIL-France research, involved 242 participants, predominantly female (84%) with an average age of 49.