Gulf of Mannar Marine Biosphere Reserve is the first of its kind in India and also in South East Asia. It extends from Rameswaram to Tuticorin in the South. The Gulf of Mannar encompasses 21 small islands located from 0.5 to 4.0 km2 in area and except a few others are uninhabited. The area is endowed with a combination of ecosystem including mangroves, seagrass, seaweeds and coral reef. The Gulf of Mannar with 3600 species of plants and animals is one of the biologically rich coastal regions in India. Proper planning and effective management of ecosystem can be achieved by collecting data on these ecosystems by the application of Remote Sensing techniques. The combined use of Remote Sensing and Geographical Information System provides a powerful multidisciplinary tool for evaluation of natural resources, both renewable and non-renewable with speed, accuracy and economy. During the present study an attempt is made to explore the advantage of newly added bands [coastal, yellow, red edge and NIR-2] in WV-2 satellite data in mapping the various ocean related parameters such as coral reef, seagrass related to their Bathymetry
In the study, we have combined speckle metrology and deep learning tools in discriminating supermicroplastics (SMPs) sizes and concentrations. Polystyrene spheres used as SMPs were introduced in the container filled with salt water. The particles were illuminated with the 635 nm laser, and the scattered light was recorded with the CMOS camera. For the simulation studies, different sized particles (2 µm, 20 µm, and 200 µm) and concentrations were used. Speckles were analyzed using a deep learning algorithm to distinguish particles sizes and concentrations. It was demonstrated that the convolutional neural networks (CNNs) trained with speckles could distinguish feeble differences in speckle patterns depending on particle sizes and concentrations. Deep learning was found to be capable of distinguishing different particle sizes and concentrations from the speckle patterns. We suggest our combined technique could be effectively used in investigating MPs in the ocean where it remains challenging to conduct in situ surveys and obtain the SMP distribution in deeper regions of the ocean.
Nitrogen-containing organic compounds play very vital roles in the research areas of organic chemistry, medicinal chemistry, and pesticidal chemistry. In recent times, the chemistry of heterocyclic triazole derivatives and 2-amino pyrimidine derivatives has attracted much attention owing to their versatile pharmacological properties1,2,3.
Triazole, tetrazole, oxazole, imidazole and pyrazole are receiving much more attention due to their potential biological activities. A lot of fused heterocyclic ring owning pyrimidinepyrazole4, benzoxazole5, benzimidazole, pyrimidotriazipine6, have been described as efficient pharmacophores. Among the overhead, pyrimidine based fused pharmacophore7,8,9 plays a vital role for numerous biological activities such as analgesic10, anticonvulsant11, antiparkinsonian12, Anti bacterial13,14, anti-microbial15. They also serve as potential chemotherapeutic agents for various diseases16,17. Thus the synthesis of these type of pharmacophore is crucial now a days to our humanity.
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