Cap-to-bell stage molar tooth morphogenesis occurs through proliferation-independent sulcus sharpening and condensation-associated tension in the dental papilla.

The anatomy of molar teeth is important both functionally for chewing food and in evolutionary studies as a well-preserved species marker in the fossil record. Molar teeth begin to develop their characteristic biting-surface shape of cusps (peaks) and sulci (valleys) at the bell stage, when corresponding folds in the dental epithelium become apparent. Theories about the developmental mechanisms of cusp and sulcus morphogenesis have hitherto largely focused on the non-proliferating nature of the secondary enamel knots (EKs) at the cusp tips.

Intrinsic and environmental drivers of pairwise cohesion in wild Canis social groups.

Animals within social groups respond to costs and benefits of sociality by adjusting the proportion of time they spend in close proximity to other individuals in the group (cohesion). Variation in cohesion between individuals, in turn, shapes important group-level processes such as subgroup formation and fission-fusion dynamics. Although critical to animal sociality, a comprehensive understanding of the factors influencing cohesion remains a gap in our knowledge of cooperative behavior in animals.

Comparative and Combined Associations of Nonconsensual Distribution of Sexually Explicit Materials and Interpersonal Violence on Psychological Distress.

Nonconsensual distribution (NCD) of sexual images and videos is prevalent among emerging adults, frequently co-occurs with other types of violence and is associated with psychological distress. Due to its often-public nature, NCD has been theorized to have unique negative psychological effects on survivors. Yet, there is limited research that quantifies the comparative and combined psychological impact of NCD victimization with other forms of interpersonal violence (IPV; e.

Paper 3: a systematic review of definitions for "racial health equity" and related terms within health-related articles.

Objectives: To systematically evaluate definitions of "racial health equity" (RHE) and related terms within health-related academic literature.

Study Design And Setting: We systematically evaluated definitions of RHE and related terms within health-related academic articles. Articles published in English were included, and no date restrictions were imposed.