Synthesis of a new potassium-substituted lead fluorapatite and its structural characterization.

Prismatic crystals of partially potassium substituted lead fluorapatite PbCaK(PO)F were grown through a solid-state reaction. The structural study conducted by single-crystal X-ray diffraction revealed that the compound crystallizes in the hexagonal 6/ space group, with unit cell parameters = = 9.7190(5) Å, = 7.

High Boron Content Enhances Bioactive Glass Biodegradation.

Derived Hench bioactive glass (BaG) containing boron (B) is explored in this work as it plays an important role in bone development and regeneration. B was also found to enhance BaG dissociation. However, it is only possible to incorporate a limited amount of B.

COVID-19-Related Fear and Mental Distress Among Tunisian Primary, Middle and High School Teachers: Prevalence and Predictive Factors.

This study aimed to determine the prevalence and predictive factors of fear of COVID-19 and serious mental distress among teachers in public schools of Southern Tunisia. This was a cross sectional study among a representative sample of 525 teachers. The level of Fear was assessed using the Fear of COVID-19 Scale (FCV-19S).

Perceived stigma among Tunisian healthcare workers during the COVID-19 pandemic.

Background And Objectives: Stigma was a major issue during the COVID-19 pandemic. It posed a serious threat to the lives of healthcare workers (HCWs) who were expected to experience higher levels of stigma and increased psychological distress. This is the first survey to investigate forms and correlates of perceived stigma in Tunisian HCWs during the COVID-19 pandemic.

Prevalence and Factors Affecting Willingness to Accept or Refuse Vaccination against COVID-19 among Healthcare Professionals in Southern Tunisia.

The COVID-19 pandemic continues to spread throughout the world causing serious morbidity and mortality. Health care professionals (HCP) are on the front line in the face of this pandemic and are identified as priorities for COVID-19 vaccination. This study aimed to estimate the acceptability rate of the COVID-19 vaccination among HCP and to identify their predisposing factors.