Browsing by Author "Joshi M."
Now showing 1 - 5 of 5
Results Per Page
Sort Options
Item Antimicrobial resistance in plant endophytes associated with poultry-manure application revealed by selective culture and whole genome sequencing(Elsevier B.V., 2024) Tripathi A.; Jaiswal A.; Kumar D.; Chavda P.; Pandit R.; Joshi M.; Blake D.P.; Tomley F.M.; Joshi C.G.; Dubey S.K.Poultry manure is widely used as organic fertilizer in agriculture during the cultivation of crops, but the persistent high-level use of antibiotics in poultry production has raised concerns about the selection for reservoirs of antimicrobial resistance genes (ARGs). Previous studies have shown that the addition of poultry manure can increase the abundance of genes associated with resistance to tetracyclines, aminoglycosides, fluoroquinolones, sulfonamides, bacitracin, chloramphenicol, and macrolide-lincosamide-streptogramin in soil and plants. Understanding the microbial populations that harbor these ARGs is important to identify microorganisms that could enter the human food chain. Here, we test the hypothesis that environmental exposure to poultry manure increases the occurrence of antimicrobial resistance (AMR) in plant endophytes using selective culture, phenotypic Antibiotic Susceptibility Testing (AST), phylogenetic analysis, and whole genome sequencing (WGS). Endophytes from poultry manure treated Sorghum bicolor (L.) Moench plant root and stem samples showed increased phenotypic and genotypic resistance against multiple antibiotics compared to untreated controls. Comparison of AMR phenotype-to-genotype relationships highlighted the detection of multi-drug resistant (MDR) plant endophytes, demonstrating the value of genomic surveillance for emerging drug-resistant pathogens. The increased occurrence of ARGs in poultry manure-exposed endophytes highlights the need for responsible antibiotic use in poultry and animal farming to reduce contamination of ecological niches and transgression into endophytic plant microbiome compartments. It also emphasizes the requirement for proper manure management practices and vigilance in monitoring and surveillance efforts to tackle the growing problem of antibiotic resistance and preserve the efficacy of antibiotics for human and veterinary medicine. � 2024 Elsevier B.V.Item Leveraging Grover�s Algorithm for Quantum Searchable Encryption in Cloud Infrastructure and its application in AES Resource Estimation(Springer, 2024) Joshi M.; Mishra M.K.; Karthikeyan S.Designing efficient techniques to search over encrypted data space has always been an intriguing security challenge, although many solutions based on classical searching methods have been proposed. Grover�s algorithm, a quantum counterpart of searching algorithms, has proven to provide quadratic speedup over any classical search technique on an unsorted database. However, this algorithm is unable to search over encrypted data space. This study proposed an extension of Grover�s algorithm to enable search over encrypted dataspace, allowing clients with limited-capability quantum resources to delegate complex search operations to an untrusted server. The blindness of data in this protocol is achieved by encrypting qubits using Pauli�s rotation gates that maximally mix the outgoing states. The empirical estimation of the overhead of the computation due to the introduction of this technique has been analyzed. This estimate has been used for comparative analysis, showing the efficiency of the proposed protocol. A practical application of the proposed searchable encryption technique has been utilized to estimate the increase in resources needed to carry out a brute-force attack on AES encryption using secure Grover�s algorithm. Furthermore, an extensive experimental analysis of the effect of noise has been studied using four different noise models: amplitude damping, phase damping, depolarizing noise, and bit-flip noise. The investigation provided useful insight into the behavior of the proposed algorithm under noisy conditions and also estimated the tolerance thresholds of the proposed algorithm under different noise models. � The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024.Item Nutritional and functional exploration of pearl millet and its processing and utilization: An overview(Elsevier B.V., 2024) Meena K.K.; Meena S.; Joshi M.; Dhotre A.V.Pearl millet (Pennisetum glaucum) is a versatile and nutritious grain with significant potential for addressing food security and improving human nutrition. Pearl millet is an excellent source of energy, dietary fibre, and essential nutrients such as iron, magnesium, and phosphorus. It contains complex carbohydrates with a low glycaemic index, making it suitable for individuals with diabetes or those seeking to manage blood sugar levels. Additionally, pearl millet is gluten-free, which makes it a viable alternative for individuals with celiac disease or gluten intolerance. Pearl millet also possesses desirable textural and water-holding capacities, making it suitable for various food applications such as baking, extrusion, and fortification. Various techniques, viz milling, dehulling, fermentation, and roasting, are used to enhance its digestibility, sensory attributes, and overall nutritional quality. Processing methods can also reduce antinutritional factors and increase the bioavailability of minerals. Incorporating pearl millet into diets and food products can enhance nutritional profiles, particularly in regions where malnutrition and micronutrient deficiencies prevail. This review examines the nutritional composition, functional properties, and processing methods of pearl millet, aiming to understand its potential applications comprehensively. � 2024 Elsevier B.V.Item Plagioclase ultraphyric basalts of the Abor magmatic complex: Implications for a plumbing system at the eastern Himalaya(Elsevier B.V., 2024) Oinam G.; Singh A.K.; Santosh M.; Joshi M.; Dutt A.; Khogenkumar S.; Das B.P.; Bikramaditya R.K.Plagioclase ultraphyric basalts (PUBs) are an important unit of the Abor magmatic complex (AMC) of the eastern Himalaya, containing ?35 vol% plagioclase phenocrysts. Apart from the eastern region, PUBs have not been reported in any other part of the Himalayas. However, very little information is available about their origin and significance in the evolution of the eastern margin of the Indian plate and the Himalayan orogeny. In this contribution, we present the first zircon U[sbnd]Pb age data of the PUBs along with whole-rock geochemistry, Sr[sbnd]Nd isotopic ratios, mineral chemistry, and quantitative textural analysis, to understand the evolutionary history of the AMC and subsurface magma chamber activities. The PUBs formed from highly evolved magma (<6 MgO wt%), having high Fe2O3 (9.06�12.29 wt%) and Ti/Y ratios (>500). Their ?Nd (t) values (?0.02 to +2.66) suggest plume magma source. A small difference in anorthite contents (<5 mol%) is observed from the thick core (An47�58) with lower anorthite contents towards the rim (An34�47) of the plagioclase phenocrysts, which is an indication of weakly zoned characteristics. Crystal size distribution shows a non-linear and concave upward trend with a relatively gentler slope towards the coarser plagioclase populations, which can be attributed to the hybrid crystallization of plagioclase-bearing magma and its subsequent differentiation with cumulates of plagioclase inside the magma chamber. The zircon U[sbnd]Pb age of these PUBs records two magmatic events - Early Paleozoic (505�473 Ma) at the core and Early Cretaceous (134�126 Ma) at the rim that are consistent with the previously proposed magmatic events of AMC with Gondwana assembly and break-up. Encounter of such dual ages in zircons does not support the usual condition of PUBs formation through crystal floatation in a slow cooling process of a single magma chamber. Therefore, considering the evidences observed in crystal size distribution, core-rim anorthite variation, geochemistry, and age data, we propose that the PUBs of AMC, eastern Himalaya were formed due to injection of a hot and young magma during the Early Cretaceous into an old and cold mush zone containing pre-existing plagioclase phenocrysts formed during the Early Paleozoic. The results further support that the newly injected magma formed the rim of the plagioclase phenocrysts and the groundmass of the PUBs. � 2024Item Quantum computing and new dimensions in network security(CRC Press, 2024) Joshi M.; Alka; Mishra M.K.Quantum computing is an emerging field of interest for many branches of practical computation ranging from cryptography to machine learning, from molecule design to drug discovery, and from physical simulations to financial optimization. Recent years have seen tremendous growth in the hardware and software applicability of quantum technology. It has started showing both disruptive and constructive implications for modern cryptography. New techniques of network security are now emerging that have no counterparts in classical cryptography. This chapter explores the horizons of network security using quantum computation. The chapter first introduces the general audience to quantum computation from the perspective of a computer scientist. It elaborates on the basic principles of quantum computing and helps to set up an intuitive understanding of this new paradigm of computation. The chapter also gives a brief introduction to the circuit model of quantum programming, which is the most prevalent model of quantum programming. It establishes the need for and importance of quantum cryptography and discusses various protocols of quantum security. � 2025 selection and editorial matter, Suhel Ahmad Khan, Mohammad Faisal, Nawaf Alharbe, Rajeev Kumar and Raees Ahmad Khan. All rights reserved.
