Papers by Singara Subramanian
sediment from Arasalar river mouth (ARM North and ARM South) in Karaikal region of Pondicherry Un... more sediment from Arasalar river mouth (ARM North and ARM South) in Karaikal region of Pondicherry Union territory and Southern part of Tamil Nadu have been carried to using the textural parameters. The samples were processed and sieved following standard procedures. Textural parameter like mean, standard deviation, skewness and kurtosis are calculated using standard methods to understand the transportation and the depositional environment of the sediments. Statistical parameters revealed that sediments are dominant in fine sand category, moderately well sorted, fine skewed to near symmetrical and falls under mesokurtic to platykurtic character. Linear discriminate function (LDF) value indicates that sediments deposited under aeolian and shallow agitated water process under Sh Marine and turbidity environment of the basin. CM diagram (C = one percentile in microns, M = medium in microns) of ARMN and ARMS sediments suggests that deposition was dominantly by bottom suspension and rolling.
Ayushdhara, May 5, 2023
In order to analyse the bioactive constituents of spikes of Zizyphus Mauritiana/ Beri spikes of B... more In order to analyse the bioactive constituents of spikes of Zizyphus Mauritiana/ Beri spikes of Bikaner, Rajasthan, Fourier Transform Infrared Spectroscopy (FTIR) and added Field Emission Scanning Electron Microscope with Energy Dispersive X-ray analysis (FESEM-EDAX) were carried out initially. The authors too demonstrated Cell line studies via MTT Assay for MOLT4 (Blood cancer) in different concentrations and found Beri spikes as toxic with Validated IC50 via Graph Prism Software. Concluded by the result, phytochemicals present in the spikes reflects it as bioactive compound which may act as antimicrobial, anticancerous, antiviral, and anti-inflammatory agents. On an all, Indian Jujube is all set to form a traditional medicine because of the effects it got via cell death when experimented for invitro trials on Blood Cancer cells.
Ayushdhara, Jul 8, 2022
Lotus flowers from Kerala's Vembanad Lake have been extracted from specific core water locations ... more Lotus flowers from Kerala's Vembanad Lake have been extracted from specific core water locations along with water samples and has been analysed in order to develop dried Lotus Tea as in Bags with name as "Indian Pankaj" that will help in health-related issues as being a natural treatment for disorders like insomnia, high cholesterol, diabetes, anxiety, stress etc., being a part of daily routine. It is found that the water supporting these lotus petals from Vembanad lake is having traces of calcium, magnesium, chloride, sulphate, silicate, sodium, bicarbonate and potassium in good content, rich in antioxidants along with essential nutrients to support white blood cells, the fluid mechanism, the immune transporter which ensures that the atmosphere of lake is full of essential minerals in order to support this lotus tea from Kerala, Backwaters. Too, because of the Vitamin D enrichment making these water lilies exceptional as they used to bloom in the first half of morning and used to shut down slowly when approaching to evening i.e., it functions according to the sunrise with sunlight. Observed the same when brought to room temperature for testing and trials. Pictures are enclosed in the paper. As we know that sunlight in its own is a therapy for so many diseases. Drinking Vitamin D enriched water is eligible to remove deficiencies of bones and blood via purification. Therefore, in this study, it is suggested to drink this beverage containing lotus extracts that will be able to develop a strong metabolism against certain infections and disorders in order to maintain a healthy medicine free living. Lastly, but not at least, would like to add up via saying-Let food be your first medicine and kitchen be your pharmacy. That's the power of Lotus Petals.
AYUSHDHARA
In order to analyse the bioactive constituents of spikes of Zizyphus Mauritiana/ Beri spikes of B... more In order to analyse the bioactive constituents of spikes of Zizyphus Mauritiana/ Beri spikes of Bikaner, Rajasthan, Fourier Transform Infrared Spectroscopy (FTIR) and added Field Emission Scanning Electron Microscope with Energy Dispersive X-ray analysis (FESEM-EDAX) were carried out initially. The authors too demonstrated Cell line studies via MTT Assay for MOLT4 (Blood cancer) in different concentrations and found Beri spikes as toxic with Validated IC50 via Graph Prism Software. Concluded by the result, phytochemicals present in the spikes reflects it as bioactive compound which may act as antimicrobial, anti-cancerous, antiviral, and anti-inflammatory agents. On an all, Indian Jujube is all set to form a traditional medicine because of the effects it got via cell death when experimented for in-vitro trials on Blood Cancer cells.
Ecological Informatics
Mangroves support numerous ecosystem services and help in reducing coastal ecological risks, yet ... more Mangroves support numerous ecosystem services and help in reducing coastal ecological risks, yet they are declining rapidly due to climate change, sea level fluctuations and human activities. It is important to understand their responses to climate and sea level changes and identify conservation target areas at spatio-temporal scales, specifically in regions of rich mangrove biodiversity. In this study, we predicted the potential impact of past (Middle Holocene, ~6000 years), current and future (2050s, 2070s; RCP 2.6 and RCP 8.5) climate change scenarios on the two dominant species in the coastal mangrove forest wetlands of India, i.e., Rhizophora mucronata and Avicennia officinalis through an ensemble species distribution modeling approach. The ensemble modeling has been carried out by integrating eight single algorithm methods. Based on the receiver operating characteristics of area under the curve (AUC) and true skill statistics (TSS) values the ensemble modeling has yielded the highest predictive performance for SVM for both the species and lowest by CART for R. mucronata and BIOCLIM for A. officinalis. The internal evaluation metrics of the resulting Species distribution models (SDMs) tested its robustness with AUC-0.97 and TSS-0.89 for A. officinalis and AUC-0.99 and TSS-0.90 for R. mucronata. Precipitation of Wettest Month (Bio 13) and Mean Temperature of Warmest Quarter (Bio 10) was the most important variable (54-67%) for the distribution of A. officinalis and Precipitation Seasonality (Bio 15) and Precipitation of Warmest Quarter (Bio 18) for R. mucronata. High precipitation and sea-level highstand during middle Holocene led to the maximum range expansion of suitable habitat for the mangrove species which is also validated in the present study by the fossil pollen datasets. Total mangrove habitat in current and future climatic scenarios decreased in 2.6 and 8.5 Representative Concentration Pathways (RCPs) for 2050 and 2070 which indicates the vulnerability of the species to climate change impacts. Mangrove species are projected to shift their ranges more towards land in future experiencing a decrease in the amount of suitable coastal area available to them throughout the Indian coastline. The plausible cause for this range shift may be due to higher precipitation that is usually associated with longer period of soil inundation and because of the rise in sea level. Our findings will assist in formulating species-specific restoration plans for these keystone species in context of climate change in the Indian Subcontinent.
Elsevier, 2022
Mangroves support numerous ecosystem services and help in reducing coastal ecological risks, yet ... more Mangroves support numerous ecosystem services and help in reducing coastal ecological risks, yet they are declining rapidly due to climate change, sea level fluctuations and human activities. It is important to understand their responses to climate and sea level changes and identify conservation target areas at spatio-temporal scales, specifically in regions of rich mangrove biodiversity. In this study, we predicted the potential impact of past (Middle Holocene, ~6000 years), current and future (2050s, 2070s; RCP 2.6 and RCP 8.5) climate change scenarios on the two dominant species in the coastal mangrove forest wetlands of India, i.e., Rhizophora mucronata and Avicennia officinalis through an ensemble species distribution modeling approach. The ensemble modeling has been carried out by integrating eight single algorithm methods. Based on the receiver operating characteristics of area under the curve (AUC) and true skill statistics (TSS) values the ensemble modeling has yielded the highest predictive performance for SVM for both the species and lowest by CART for R. mucronata and BIOCLIM for A. officinalis. The internal evaluation metrics of the resulting Species distribution models (SDMs) tested its robustness with AUC-0.97 and TSS-0.89 for A. officinalis and AUC-0.99 and TSS-0.90 for R. mucronata. Precipitation of Wettest Month (Bio 13) and Mean Temperature of Warmest Quarter (Bio 10) was the most important variable (54-67%) for the distribution of A. officinalis and Precipitation Seasonality (Bio 15) and Precipitation of Warmest Quarter (Bio 18) for R. mucronata. High precipitation and sea-level highstand during middle Holocene led to the maximum range expansion of suitable habitat for the mangrove species which is also validated in the present study by the fossil pollen datasets. Total mangrove habitat in current and future climatic scenarios decreased in 2.6 and 8.5 Representative Concentration Pathways (RCPs) for 2050 and 2070 which indicates the vulnerability of the species to climate change impacts. Mangrove species are projected to shift their ranges more towards land in future experiencing a decrease in the amount of suitable coastal area available to them throughout the Indian coastline. The plausible cause for this range shift may be due to higher precipitation that is usually associated with longer period of soil inundation and because of the rise in sea level. Our findings will assist in formulating species-specific restoration plans for these keystone species in context of climate change in the Indian Subcontinent.
AYUSHDHARA
Lotus flowers from Kerala’s Vembanad Lake have been extracted from specific core water locations ... more Lotus flowers from Kerala’s Vembanad Lake have been extracted from specific core water locations along with water samples and has been analysed in order to develop dried Lotus Tea as in Bags with name as “Indian Pankaj” that will help in health-related issues as being a natural treatment for disorders like insomnia, high cholesterol, diabetes, anxiety, stress etc., being a part of daily routine. It is found that the water supporting these lotus petals from Vembanad lake is having traces of calcium, magnesium, chloride, sulphate, silicate, sodium, bicarbonate and potassium in good content, rich in antioxidants along with essential nutrients to support white blood cells, the fluid mechanism, the immune transporter which ensures that the atmosphere of lake is full of essential minerals in order to support this lotus tea from Kerala, Backwaters. Too, because of the Vitamin D enrichment making these water lilies exceptional as they used to bloom in the first half of morning and used to s...
International Journal of All Research Education & Scientific Methods
Sediments are mainly medium to fine grained, moderately well sorted to moderately sorted, near sy... more Sediments are mainly medium to fine grained, moderately well sorted to moderately sorted, near symmetrical to very coarse skewed and mesokurtic to leptokurtic nature based on granulometric study. Inter-relationship of various parameters shows bimodal nature of sediments. Linear discriminant analysis (LDA) of all the samples indicate aeolian, under a beach process in shallow marine condition and deposited under turbidity environment. CM and Tractive current diagram infers that sediments were deposited bottom suspension and rolling. Significance of the present study is mainly focused on grain size distribution, depositional process, environments and energy conditions of the core sediments.
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Papers by Singara Subramanian