A5049441545- Soil erosion and sediment transport
- Soil Carbon and Nitrogen Dynamics
- Rice Cultivation and Yield Improvement
- Agricultural Science and Fertilization
- Groundwater and Watershed Analysis
- Soil and Land Suitability Analysis
- Hydrology and Watershed Management Studies
- Soil and Unsaturated Flow
- Bamboo properties and applications
- Agroforestry and silvopastoral systems
- Soil Geostatistics and Mapping
- Plant Water Relations and Carbon Dynamics
- Hydrology and Sediment Transport Processes
- Aeolian processes and effects
- Forest ecology and management
- Climate change impacts on agriculture
- Soil Management and Crop Yield
- Land Use and Ecosystem Services
- Catalytic C–H Functionalization Methods
- Chemical Synthesis and Analysis
- Hydrology and Drought Analysis
- Agricultural risk and resilience
- Synthesis and Biological Activity
- Synthesis and Catalytic Reactions
- Climate variability and models
Indian Council of Agricultural Research
2019-2025
Bidhan Chandra Krishi Viswavidyalaya
2022-2025
All India Institute of Medical Sciences Bhopal
2024
Indian Institute of Soil and Water Conservation
2014-2024
AbbVie (United States)
2023
Mizoram University
2022
Anchor University Lagos
2019
University of Gour Banga
2016-2017
Harvard University
2017
National Bureau of Soil Survey and Land Use Planning
2014-2016
ABSTRACT Management practices to minimise soil erosion can be effectively carried out if the magnitude and spatial distribution of risk areas are known. Prioritisation is a challenging task, especially in developing countries because non‐availability relevant data analytical tools for such an assessment. As result, it becomes difficult establish appropriate conservation measures on risk‐prone reduce loss ensure development sustainable management resources. Such database better generated...
Dragmacidin D, an emerging biologically active marine natural product, has attracted attention as a lead compound for treating Parkinson's and Alzheimer's diseases. Prominent structural features of this are the two indole-pyrazinone bonds presence polar aminoimidazole unit. We have established concise total synthesis dragmacidin D using direct C-H coupling reactions. Methodological developments include (i) Pd-catalyzed thiophene-indole C-H/C-I coupling, (ii) indole-pyrazine N-oxide C-H/C-H...
Abstract We have developed a palladium-catalyzed C–H/C–H coupling reaction of indoles or pyrroles with azine N-oxides. The proceeds selectively at the C3 position indoles/pyrroles and C2 Furthermore, we accomplished synthesis marine indole alkaloid eudistomin U by utilizing this newly reaction.
The deficiency of robust and practical methods for 18F-radiofluorination is a bottleneck positron emission tomography (PET) tracer development. Here, we report the first transition-metal-assisted 18F-deoxyfluorination phenols. transformation benefits from readily available phenols as starting materials, tolerance moisture ambient atmosphere, large substrate scope, translatability to generate doses appropriate PET imaging.
A streamlined total synthesis of N14-desacetoxytubulysin H (Tb1) based on a C–H activation strategy and short pretubulysin D (PTb-D43) are described. Applications the developed synthetic strategies technologies to series tubulysin analogues (Tb2–Tb41 PTb-D42) also reported. Biological evaluation synthesized compounds against an array cancer cells revealed number novel (e.g., Tb14), some with exceptional potencies certain cell lines [e.g., Tb32 IC50 = 12 pM MES SA (uterine sarcoma) line 2 HEK...
From the enediyne class of antitumor antibiotics, uncialamycin is among rarest and most potent, yet one structurally simpler, making it attractive for chemical synthesis potential applications in biology medicine. In this article we describe a streamlined practical enantioselective total that amenable to novel analogues renders natural product readily available biological drug development studies. Starting from hydroxy- or methoxyisatin, features Noyori reduction, Yamaguchi...
Abstract Due to extensive root system, connected rhizome bamboos are considered suitable for improving soil properties within a short period, though most of the claims anecdotal and need be supported with quantified data. The study evaluates seven bamboo species viz., Bambusa balcooa, bambos, vulgaris, nutans, Dendrocalamus hamiltonii, stocksii strictus their rooting pattern impact on health properties. Coarse fine intensity was maximum in B. vulgaris . biomass ranged from 0.6 kg m −3 nutans...
Environmental crises, land degradation, declining factor productivity, and farm profitability questioned the sustainability of linear economy-based existing agricultural production systems. Hence, there is a dire need to design develop circular systems meet twin objectives environmental food security. Therefore, productive capacity, natural resource conserving ability, biomass recycling potential four intensified maize-based viz. Maize (Zea mays) + sweet potato (Ipomoea batatas)-wheat, maize...
Abstract Soil erosion is a serious threat to agriculture and environmental sustainability in the risk‐prone rainfed Himalayan ecosystem. Hence, runoff soil loss mitigation ability of four maize‐based intensified systems; maize ( Zea mays ) + turmeric Curcuma longa ), ginger Zingiber officinale colocasia Colocasia esculenta sweet potato Ipomoea batatas were tested against sole maize. The study recorded 41 erosive events during 2020–2022 monsoon season. A principal component analysis (PCA) was...
CD73 is an extracellular mediator of purinergic signaling. When upregulated in the tumor microenvironment, has been implicated inhibition immune function through overproduction adenosine. Traditional efforts to inhibit have involved antibody therapy or development small molecules, most potent which mimic acidic and ionizable structure enzyme's natural substrate, adenosine 5'-monophosphate (AMP). Here, we report systematic discovery a novel class non-nucleotide inhibitors that are more than...
Erosion by water reduces soil quality and hence crop yield. Understanding the response of yields to erosion is vital in assessing agriculture’s vulnerability erosion. However, these effects are difficult quantify. The study presents a quantitative relationship between productivity rainfed wheat (Triticum aestivum) comparing field plots with different degrees some sub-tropical alfisols Doon Valley region India. By topsoil depth reference site as control, severity was classified into phases...
One of the main issues influencing quality soil and agricultural productivity is land degradation. In degraded lands, crop cultivation not sustainable without adopting resource conservation practices. Agroforestry systems that incorporate canopy management practices have potential to significantly contribute restoration by preserving natural resources. We hypothesized restoring through a combination tree planting, shade-loving cultivation, management, practice could result in significant...
India's agroclimatic diversity supports extensive vegetable cultivation, with cabbage (Brassica oleracea var. capitata Lin.) being a key crop. However, infestations by the diamondback moth (Plutella xylostella cause significant yield losses. A 2020-21 study in West Bengal, India evaluated nine insecticides for efficacy against this pest. Chlorfenapyr 10% SC was most effective, reducing larval population 85.06% and achieving highest of 322.97 quintals/ha. The findings emphasize need effective...
Abstract. This paper attempts to provide information for policymakers and soil conservation planners in the form of district-wise erosion risk (SER) maps prepared state Telangana, India. The SER values each district were computed by extracting on grid-wise loss tolerance limit existing country-scale a GIS environment. objectives study (i) identify areas with high risk, (ii) an urgent need measures. results reveal that around 69 % has negligible above limits, does not call immediate remaining...
Abstract Globally, soil erosion transports a significant amount of carbon (C), but the magnitude erosion‐associated loss organic (SOC) from India is poorly quantified. The present study quantified C flux induced by accelerated for different states where most critical form land degradation. lateral transport eroded was estimated individual Indian using spatially referenced data rates that were assessed universal equation (USLE) applied to information about 1649 association units and their SOC...