Search

This paper assesses the fate of lipids associated with low‐temperature and pit‐fired pottery to determine to what degree organic compounds persist or are removed during short‐firing episodes below 800 °C. Three different types of clay were fired using contrasting techniques including at 400 °C for 4 h in a muffle furnace, and pit‐firing in which pottery was fired to higher temperatures but for shorter periods of time. Total lipid extracts obtained by solvent extraction of test sherds were screened using gas chromatography‐flame ionization detection (GC‐FID) to determine the lipid concentrations and gas chromatography–mass spectrometry (GC–MS) to identify the organic compounds present. The results showed that firing of clay removes all naturally occurring alkyl lipids; however, during pit‐firing, diterpenoid lipids were introduced into the clay as a condensate from pine ( Pinus spp.) wood used as fuel. These results confirm that alkyl lipids, e.g., fatty acids, can be reliably associated with the use of vessels, although caution is required when interpreting the origins of lipids that might derive from fuel used in firing. [ABSTRACT FROM AUTHOR]

Following early limitations on women becoming educated in and practicing dentistry, the proportion of women enrolled in dental schools around the world has increased dramatically over the past decades. Dental schools have undergone a transformation from male dominance to almost equal numbers in the United States and female predominance in other countries including the United Kingdom. However, this change in student gender distribution has not been matched among academic leaders. Data from across the globe indicate a clear disproportion in favor of males in leadership positions in dentistry-and the more senior the position, the greater the imbalance. This article reviews the evolving changes in gender distribution across the landscape of dental education, research, and practice and some initiatives to address the gender imbalance in leadership. Such initiatives can help to ensure that, in the future, the profession benefits from the spectrum of influences brought to bear by the leadership of both women and men.