Research frontiers refer to the cutting-edge or innovative areas of research that are currently emerging within a particular field. These frontiers represent the leading edge of knowledge and exploration in that field, often pushing the boundaries of what is currently understood and opening up new avenues for further inquiry and discovery. Researchers working in these frontiers are typically aiming to address pressing questions or challenges, explore new phenomena, or develop novel methodologies or technologies that have the potential to significantly advance the field. By pushing the boundaries of knowledge and expanding the scope of research, research frontiers play a crucial role in driving the progress and evolution of a field.