Oral Cancer Hazards Related to Tobacco Use and a Transtheoretical Model Assessment of Preparedness of Individuals With Oral Potentially Malignant Disorders to Quit Tobacco Use.

Objectives There is a lack of knowledge on oral cancer and oral potentially malignant disorders (OPMDs) among the local communities of Northeast India. Since the habit of tobacco is linked to the culture and oral cancer is a widespread epidemic here, it is pertinent to assess the knowledge about risk factors and readiness to quit the habit among the study population. Methods The present research was done in the Tobacco Cessation Centre (TCC), Department of Public Health Dentistry (PHD) of Regional Dental College (RDC), Guwahati, Assam, from Jan 2023 to June 2023.

Sexual Dimorphism in Teeth Dimension and Arch Perimeter of Individuals of Four Ethnic Groups of Northeastern India.

Objectives There is a disparity between males and females when it comes to size and appearance. In forensic and anthropological investigations, it is crucial to identify an unknown individual's gender, and it is possible to discern individual differences based on differences in dental features among populations. For identifying individuals, tooth dimensions are an effective, simple, and low-cost means of determining sex.

Crisis, unstable dimension variability, and bifurcations in a system with high-dimensional phase space: coupled sine circle maps.

The phenomenon of crisis in systems evolving in high-dimensional phase space can show unexpected and interesting features. We study this phenomenon in the context of a system of coupled sine circle maps. We establish that the origins of this crisis lie in a tangent bifurcation in high dimensions, and identify the routes that lead to the crisis.

Quasiperiodic waves at the onset of zero-Prandtl-number convection with rotation.

We show the possibility of temporally quasiperiodic waves at the onset of thermal convection in a thin horizontal layer of slowly rotating zero-Prandtl-number Boussinesq fluid confined between stress-free conducting boundaries. Two independent frequencies emerge due to an interaction between straight rolls and waves along these rolls in the presence of Coriolis force, if the Taylor number is raised above a critical value. Constructing a dynamical system for the hydrodynamical problem, the competition between the interacting instabilities is analyzed.