1. Photosynthetic Pigments in Diatoms -- 2. Impact assessment: Diatom flora of free flowing and fragmented stretches of serially impounded Bhagirathi River (Indian Himalayan Region) -- 3. Use of Multivariate Techniques for Quick Assessment of Hydropower Impacts on the Producer Community in Himalayan Rivers With a note on required sample size -- 4. Alpine lake environments and Psychrophile Diatoms around the World with a particular emphasis on Turkish glacial lakes -- 5. Ocean Acidification Conditions and Marine Diatoms -- 6. Diatom Algae for Carbon Sequestration in Oceans -- 7.Diatoms: A Potential for Assessing River Health -- 8. Terrestrial Diatoms and their Potential for Ecological Monitoring -- 9. Role of Diatoms in Forensics: A Molecular approach -- 10. Diatoms in Forensics: Adding new dimension to the growing relevance of diatoms in improving lives -- 11. Diatom silica a potential tool as biosensors and for biomedical field -- 12. Diatoms in biomedicines and nanomedicines -- 13. Recent Advances in Biomedicine: Diatomaceous Applications -- 14. Perspectives on the ecosystem services and need for conservation of diatomite and diatomaceous earth landscapes for India -- 15. Biofuels from Diatoms: Potential and Challenges -- 16. Potential Industrial Application of Diatoms for a Greener Future -- 17. The mechanism of ecosystem restoration and resilience of present-day coastal lagoons by coastal diatoms and their implications for management of successional diatomite landscapes.