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Singh, Rashmi
- Development of Hydrophobic Platinum-Doped Carbon Aerogel Catalyst for Hydrogen-Deuterium Exchange Process at High Pressure
Abstract Views :210 |
PDF Views:91
Authors
Rashmi Singh
1,
M. K. Singh
1,
D. K. Kohli
1,
Ashish Singh
1,
Sushmita Bhartiya
2,
A. K. Agarwal
3,
P. K. Gupta
1
Affiliations
1 Nano Functional Materials Laboratory, Laser Materials Development and Devices Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, IN
2 Nano Functional Materials Laboratory, Laser Materials Development and Devices Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, IS
3 Heavy Water Board, Vikram Bhawan, Anushakti Nagar, Mumbai 400 094, IN
1 Nano Functional Materials Laboratory, Laser Materials Development and Devices Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, IN
2 Nano Functional Materials Laboratory, Laser Materials Development and Devices Division, Raja Ramanna Centre for Advanced Technology, Indore 452 013, IS
3 Heavy Water Board, Vikram Bhawan, Anushakti Nagar, Mumbai 400 094, IN
Source
Current Science, Vol 109, No 10 (2015), Pagination: 1860-1864Abstract
The use of catalysed exchange of deuterium (D) between hydrogen (H) gas and liquid water using the bithermal hydrogen water (BHW) process is a promising and environment-friendly approach for the production of heavy water. However, the use of this approach is limited by the lack of a suitable catalyst that has good activity at high operating pressures required for practical applications. We report the development of hydrophobic platinum-doped carbon aerogel (PtCA) catalyst which shows good catalytic activity for H/D isotope exchange reactions at operating pressures up to 20 bar.Keywords
Carbon Dioxide Activation, Hydrogen Isotope Separation, Hydrophobic Catalyst, Platinum-Doped Carbon Aerogel.- Haematological and Immunological Response of Achyranthes aspera Leaf and Root Extracts in Arsenic-Intoxicated Female Mice (Mus musculus)
Abstract Views :237 |
PDF Views:96
Authors
Veena Sharma
1,
Rashmi Singh
1
Affiliations
1 Department of Bioscience and Biotechnology, Banasthali University, P.O. Banasthali 304 022, IN
1 Department of Bioscience and Biotechnology, Banasthali University, P.O. Banasthali 304 022, IN
Source
Current Science, Vol 110, No 4 (2016), Pagination: 708-713Abstract
To evaluate therapeutic efficacy of Achyranthes aspera against arsenic toxicity, mice were given aqueous ischolar_main and leaf extracts at both low and high doses (100 and 200 mg/kg body wt) after being intoxicated with sodium arsenate (0.1 mg/kg body wt). Significant alterations (P < 0.05, 0.001) were seen in various haematological parameters, Ig level, macrophage yield, viability, phagocytic index and progesterone level. Results clearly depict that both A. aspera extracts significantly restore the unbalanced level up to the normal. This study shows the protective efficacy of A. aspera on altered haematological and immunological system. It is possible that future work on drug formulation may use this plant as a source.Keywords
Achyranthes aspera, Arsenic Toxicity, Haematological Alterations, Mice Immune System.References
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- Bhosale, U. A., Yegnanarayan, R., Pophale, P. and Somani, R., Effect of aqueous extracts of Achyranthes aspera Linn. on experimental animal model for inflammation. Anc. Sci. Life, 2012, 31, 202-206.
- Gokhale, A. B., Damre, A. S., Kulkarni, K. R. and Saraf, M. N., Preliminary evaluation of anti-inflammatory and anti-arthritic activity of S. lappa, A. speciosa and A. aspera. Phytomedicine, 2002, 9, 433-437.
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- Isolation and Structural Elucidation of an Isothiocyanate Compound from Indigofera tinctoria Linn. Extract
Abstract Views :224 |
PDF Views:74
Authors
Veena Sharma
1,
Rashmi Singh
1
Affiliations
1 Department of Bioscience and Biotechnology, Banasthali University, Niwai 304 022, IN
1 Department of Bioscience and Biotechnology, Banasthali University, Niwai 304 022, IN
Source
Current Science, Vol 113, No 05 (2017), Pagination: 941-946Abstract
Indigofera tinctoria is a well-known medicinal plant that possesses several therapeutic activities. Isothiocyanate derivative from hydroethanolic extract of Indigoferatinctoria (HEIT) was isolated by means of chromatographic techniques, i.e. adsorption chromatography,thin layer chromatography and high-pressure liquid chromatography. Structural characterization of isolated compound was done using various spectroscopic techniques (liquid chromatograph–mass spectrometry,1H nuclear magnetic resonance and Fourier transform-infrared spectroscopy) and the possible structure was identified as 1-[1,2-Diisothiocyanato-2-(3-isothiocyanato-2,2-dimethyl-propylsulphanyl)-ethoxy]-3-isothiocyanato-2,2-dimethyl-propane (C16H22N4OS5;m/z 446.70; ITC-1). Maximum yield of ITC-1 was obtained as 22 mg/5 g HEIT with 97% purity.Keywords
Column Chromatography, HPLC, Indigofera tinctoria, Isothiocynate Compounds, LC–MS.References
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- Developing Extension Model for Uptake of Precision Conservation Agricultural Practices in Developing Nations:Learning from Rice–Wheat System of Africa and India
Abstract Views :187 |
PDF Views:72
Authors
Affiliations
1 Division of Agricultural Extension, Indian Agricultural Research Institute, New Delhi 110 012, IN
1 Division of Agricultural Extension, Indian Agricultural Research Institute, New Delhi 110 012, IN
Source
Current Science, Vol 114, No 04 (2018), Pagination: 814-825Abstract
We have learnt time and again that food supply shocks have resulted in food price spikes, instability, violence and even regime collapse. When the supply chain at the primary producers (farmers) level is functioning well, the success will ripple down the whole chain. In this review, we present our approach for the development of an extension model for the promotion of precision conservation agricultural practices (PCAPs) uptake among rice–wheat smallholder farming households, considering the demand as well as the prospect for developing and up-scaling rice–wheat production system in Africa. PCAPs are technologies and practices that are capable of helping farmers to apply right resources at the right place and, at the right time, using the right method. The combination of these technologies and practices can help in achieving optimum resource stewardship and resource conservation in the farmers’ field. However, extension strategies and supports are needed to facilitate the adoption of these best practices at the farmers’ level.Keywords
Developing Nations, Extension Strategies, Rice–Wheat System, Smallholder Farmers, Sustainable Agriculture.References
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- Socio-economic transformation through National Food Security Mission in Uttar Pradesh and Karnataka, India
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Authors
Affiliations
1 ICAR-Central Soil Salinity Research Institute, Karnal 132 001, India, IN
2 ICAR-Indian Agricultural Research Institute, Pusa, New Delhi 110 012, India, IN
1 ICAR-Central Soil Salinity Research Institute, Karnal 132 001, India, IN
2 ICAR-Indian Agricultural Research Institute, Pusa, New Delhi 110 012, India, IN
Source
Current Science, Vol 124, No 8 (2023), Pagination: 976-980Abstract
Augmenting agricultural productivity is the goal of the National Food Security Mission (NFSM), Government of India. The aim of the present study was to analyse the socio-economic changes brought about by NFSM in 2022 in Uttar Pradesh (UP) and Karnataka. For this, 160 beneficiary farmers and 80 non-beneficiary farmers from both states were part of personal interviews and focused group discussions. The socio-economic transformation was higher for beneficiary farmers in terms of annual income, occupational status, crop diversification, earning members, material possession, agricultural productivity and access to the programme than for non-beneficiary farmers of both states. Comparative analyses of the transformation of beneficiary farmers in Karnataka and UP revealed significant changes in the socio-economic indicators, except earning members, education, social participation and agricultural productivity. The changes brought about by this Mission, before and after its launch, revealed a significantly higher socio-economic impact on the beneficiary farmersKeywords
Agricultural productivity, beneficiary and non-beneficiary farmers, National Food Security Mission, socio-economic transformation.References
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