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Foliar spraying of chlorpyrifos induces morphometric changes in Glycine max(L.)and shifts native soil microbiome

Emerging Contaminants 2024年第3期10卷 86-102页

作者： Aman Raj Muneer Ahmad Malla Ashwani kumar pramod kumar khare Sheena kumari Metagenomics and Secretomics Research Laboratory Department of BotanyDr.Harisingh Gour University(A Central University)Sagar470003M.P.India Institute for Water and Wastewater Technology Durban University of TechnologyDurban4001South Africa Metagenomics and Secretomics Research Laboratory Department of BotanyUniversity of Allahabad(A Central University)Prayagraj211002U.P.India Department of Botany Ecology laboratoryDr.Harisingh Gour Vishwavidyalaya(A Central University)SagarMadhya Pradesh470003India

Pesticide usage alters plant growth,and development and disturbs native soil *** present study was carried out to evaluate the effect of Chlorpyrifos(CP-20%EC)on the growth and development of soybean(Glycine max),soil fertility,and soil *** conducted a pot experiment to assess the impact of different concentrations of chlorpyrifos;recommended dose(RD)and higher dose rates(2×and 4×RD).Chlorpyrifos application significantly altered the growth parameters in soybean(p<0.05).At higher concentrations(2×and 4×RD)shoot length(17.16±1.04;14.33±1.15,p<0.05),root length(3.40±0.36;2.66±0.28,p<0.050),leaf count(6.33±0.57;2.66±0.57;p<0.05)reduced significantly compared to RD and Control *** at these concentrations(2×and 4×RD),significant reduction in fresh shoot weight(0.86±0.008;0.66±0.002,p<0.05),dry shoot weight(0.14±0.001;0.13±0.003,p<0.05)and root fresh weight(0.13±0.001;0.09±0.003,p<0.05)and root dry weight(0.030±0.0005,0.037±0.003,p<0.05)was observed compared to the RD and control ***,a significant increase in root and shoot morphometric parameters was observed in RD compared to control(p<0.05).All the physio-chemical properties such as pH(8.51±0.82),moisture content(33.73±0.04),and electrical conductivity(3.44±0.03)were higher in CP-treated soils compared to ***,nutrient content such as nitrogen,carbon,and hydrogen were significantly reduced in treated soils compared to *** analysis showed higher concentrations of As,Cd,and Pb in CP-treated soil(8.7 mg/g,0.254 mg/g,and 16.477 mg/g,respectively)compared to untreated soil(8.09 mg/g,0.228 mg/g,and 15.25 mg/g,respectively).We also assessed soil metabolic activity and diversity using Community-level Physiological Profiling(CLPP).CP-treated soil exhibited significantly lesser microbial diversity,with lesser metabolic *** analysis revealed a shift in bacterial community composition,with Pseudomonadota and Bacteroidota dominating CP-treated s

关键词： Chlorpyrifos Glycine max Proline Metabolic activity CLPP Metagenomics Bacterial microbiome

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A Hybrid Deep Learning Model for COVID-19 Prediction and Current Status of Clinical Trials Worldwide

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Computers, Materials & Continua 2021年第2期66卷 1897-1920页

作者： Shwet Ketu pramod kumar Mishra Department of Computer Science Institute of ScienceBanaras Hindu UniversityVaranasiIndia

Infections or virus-based diseases are a significant threat to human societies and could affect the whole world within a very short *** Virus Disease-2019(COVID-19),also known as novel coronavirus or SARSCoV-2(Severe Acute Respiratory Syndrome-Coronavirus-2),is a respiratory based touch contiguous *** catastrophic situation resulting from the COVID-19 pandemic posed a serious threat to societies *** whole world is making tremendous efforts to combat this life-threatening *** taking remedial action and planning preventive measures on time,there is an urgent need for efficient prediction models to confront the COVID-19 outbreak.A deep learning-based ARIMA-LSTM hybrid model is proposed in this article for predicting the COVID-19 outbreak by utilizing real-time information from the WHO’s daily bulletin report as well as provides information regarding clinical trials across the *** evaluate the suitability and performance of our proposed model compared to other well-established prediction models,an experimental study has been *** estimate the prediction results,the three performance measures,i.e.,Root Mean Square Error(RMSE),Coefficient of determination(R2 Score),and Mean Absolute Percentage Error(MAPE)have been *** prediction results of fifty countries substantiated the fact that the proposed ARIMA-LSTM hybrid model performs very well as compared to other *** proposed model archives the lowest RMSE,lowest MAPE,and highest R2 Score throughout the testing,under varied selection criteria(country-wise).This article aims to contribute a deep learning-based solution for the wellbeing of livings and to provide the current status of clinical trials across the globe.

关键词： COVID-19 deep learning prediction clinical trials healthcare

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Biochemical changes associated with flowering in Bambusa arundinacea and Bambusa nutans

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Journal of Forestry Research 2018年第5期29卷 1315-1320页

作者： pramod kumar Yogeshwar Mishra Tropical Forest Research Institute Jabalpur Madhya Pradesh 482021 India

Biochemical changes associated with flowering in Bambusa arundinacea Linn and Bambusa nutans *** Munro were *** flowering was initiated in natural areas and plantations of *** in late 2014 and reached full bloom in early 2015,whereas sporadic flowering recorded during 2014–2015 in vegetatively propagated plants of *** and nodal shoot samples from flowering culms/shoots and nonflowering culms/shoots were collected in February 2015 at the initiation of fruit filling,then analyzed and compared for soluble sugars,phenols and peroxidase *** both species sugars were higher in leaves of flowering culms/shoots and lower in nodal shoots of flowering culms/shoots compared to the *** were lower in leaves and nodal shoots of flowering ***,but higher in leaves and decreases in nodal shoots of *** activity increases in leaves and nodal shoots of *** after flowering but increases in nodal shoots and decreases in leaves of ***.

关键词： Sugars Phenols Peroxidase activity Flowering Bambusa arundinacea Bambusa nutans

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MOLECULAR DYNAMICS SIMULATION OF POLYMER/CARBON NANOTUBE COMPOSITES

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Acta Mechanica Solida Sinica 2015年第4期28卷 409-419页

作者： Sumit Sharma Rakesh Chandra pramod kumar Navin kumar Department of Mechanical Engineering Dr.B.R.Ambedkar National Institute of Technology School of Mechanical Materials & Energy Engineering (SMMEE) Indian Institute of Technology

In this paper, we present classical molecular dynamics （MD） simulations of model polymer/CNT composites constructed by embedding a single wall （10,10） CNT into two different amorphous polymer matrices： poly（methyl methacrylate） and poly{（m-phenylene-vinylene）-co- [（2,5-dioctoxy-p-phenylene） vinylene]}, respectively, with different volume fractions. The simulation results support the idea that it is possible to use CNTs to mechanically reinforce an appropri- ate polymer matrix, especially in the longitudinal direction of the nanotube. The comparison of the simulation results with the macroscopic rule-of-mixtures for composite systems showed that for strong interfacial interactions, there can be large deviations of the results from the rule-of- mixtures. In order to verify this study, results obtained have been compared with those given by Elliott and Han （2007）.

关键词： nano-structures elasticity mechanical properties computational modeling

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Habitat Range of two Alpine Medicinal Plants in a Trans-Himalayan Dry Valley,Central Nepal

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Journal of Mountain Science 2009年第1期6卷 66-77页

作者： Bharat Babu SHRESTHA pramod kumar JHA Central Department of Botany Tribhuvan UniversityKathmanduNepal

Understanding of the habitat range of threatened Himalayan medicinal plants which are declining in their abundance due to high anthropogenic disturbances is essential for developing conservation strategies and agrotechnologies for cultivation. In this communication, we have discussed the habitat range of two alpine medicinal plants, Aconitum naviculare （Bruehl） Stapf and Neopicrorhiza scrophulariiflora （Pennel） Hong in a trans-Himalayan dry valley of central Nepal, Manang district. They are the most prioritized medicinal plants of the study area in terms of ethnomedicinal uses. A. naviculare occurs on warm and dry south facing slopes between 4090-4650 m asl along with sclerophyllous and thorny alpine scrubs, while N. scrophulariiflora is exclusively found on cool and moist north facing slope between 4000 and 4400 m asl where adequate water is available from snow melt to create a suitable habitat for this wetland dependent species. The soil in rooting zone of the two plants differs significantly in organic carbon （OC）, organic matter （OM）, total nitrogen （N） and carbon to nitrogen （C/N） ratio. Due to cool and moist condition of N. scrophulariiflora habitat, accumulation of soil OC is higher, but soil N content is lower probably due to slow release from litter, higher leaching loss and greater retention in perennial live biomass of the plant. The C/N ratio of soil is more suitable in A. navuculare habitat than that of N scrophulariiflora for N supply. Warm and sunny site with N rich soil can be suitable for cultivation ofA. naviculare, while moist and cool site with organic soil for N. scrophulariiflora. The populations of both the plants are fragmented and small. Due to collection by human and trampling damage by livestock, the population of A. naviculare was found absent in open areas in five of the six sampling sites and it was confined only within the bushes of alpine scrubs. For N. serophulariiflora, high probability of complete receding of small glaeiers may be

关键词： Aconitum naviculare Neopicrorhizascrophulariiflora habitat degradation nitrogen organic carbon radiation Manang Nepal

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Role of limited access dressing in achieving improved aesthetic results during resurfacing of wounds

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Plastic and Aesthetic Research 2020年第5期7卷 57-62页

作者： pramod kumar Department of Plastic surgery King Fahad Central HospitalJazan 82666Saudi Arabia

With refinement and better understanding of Plastic Surgery,there is increasing expectation of aesthetic outcomes after resurfacing of *** major problems in resurfacing procedures are tissue bulk,donor site issues,excessive scarring and distal edema due to damaged lymphatics and veins after flap harvest from adjacent areas in the ***-conservative debridement simplifies reconstruction by reducing the need for flaps and improves the chances of skin graft take through limited access dressing,which can improve the final aesthetic result following *** this paper,we describe three representative cases treated under limited access dressing.

关键词： Aesthetic reconstruction limited access dressing LAD

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Sulfamic acid as a green,reusable catalyst for stepwise,tandem&one-pot solvent-free synthesis of pyrazole derivatives

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Chinese Chemical Letters 2017年第7期28卷 1571-1576页

作者： Veera Swamy Konkala pramod kumar Dubey Department of Chemistry Jawaharlal Nehru Technological University HyderabadCollege of EngineeringKukatpally 500085India

Sulfamic acid（SA） is a bi-functional, cost-effective and reusable green catalyst for the synthesis of 4-（pyrazol-4-yl）methylenepyrazol-5（4H）-one derivatives by one-pot, three-component condensation of pyrazol-4-carbaxaldehydes, b-ketoesters and phenyl hydrazine（Route-I）. In addition to this method,another simple condensation of pyrazol-4-carbaxaldehydes with pyrazolone in the presence of SA under the solvent-free condition in good yield is reported. The merits of these protocols are mild conditions,non-aqueous workup, high yields, easy availability of the catalyst, no chromatographic separation and inexpensive solid acid catalyst. Furthermore, SA could be recycled and reused for five times without losing its catalytic activity.

关键词： Pyrazol-4-carbaxaldehydes Knoevenagel condensation Sulfamic acid Multicomponent reaction Physical grinding

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Effect of benzaldehyde on the electrodeposition and corrosion properties of Ni–W alloys

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International Journal of Minerals,Metallurgy and Materials 2015年第10期22卷 1060-1066页

作者： U.pramod kumar C.Joseph Kennady Department of Chemistry Karunya Institute of Technology and SciencesKarunya NagarCoimbatore 641114Tamil NaduIndia

The effect of different concentrations of benzaldehyde on the electrodeposition of Ni–W alloy coatings on a mild steel substrate from a citrate electrolyte was investigated in this study. The electrolytic alkaline bath(p H 8.0) contained stoichiometric amounts of nickel sulfate, sodium tungstate, and trisodium citrate as precursors. The corrosion resistance of the Ni–W-alloy-coated specimens in 0.2 mol/L H2SO4 was studied using various electrochemical techniques. Tafel polarization studies reveal that the alloy coatings obtained from the bath containing 50 ppm benzaldehyde exhibit a protection efficiency of 95.33%. The corrosion rate also decreases by 21.5 times compared with that of the blank. A higher charge-transfer resistance of 1159.40 ?·cm2 and a lower double-layer capacitance of 29.4 μF·cm-2 further confirm the better corrosion resistance of the alloy coating. X-ray diffraction studies reveal that the deposits on the mild steel surface are consisted of nanocrystals. A lower surface roughness value(Rmax) of the deposits is confirmed by atomic force microscopy.

关键词： nickel–tungsten alloys benzaldehyde electrodeposit

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A threshold voltage model of short-channel fully-depleted recessed-source/drain(Re-S/D) SOI MOSFETs with high-k dielectric

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Chinese Physics B 2015年第10期24卷 604-611页

作者： Gopi Krishna Saramekala Sarvesh Dubey pramod kumar Tiwari Department of Electronics and Communication Engineering National Institute of Technology Shri Ramswaroop Memorial University

In this paper, a surface potential based threshold voltage model of fully-depleted（FD） recessed-source/drain（Re-S/D）silicon-on-insulator（SOI） metal-oxide semiconductor field-effect transistor（MOSFET） is presented while considering the effects of high-k gate-dielectric material induced fringing-field. The two-dimensional（2D） Poisson＇s equation is solved in a channel region in order to obtain the surface potential under the assumption of the parabolic potential profile in the transverse direction of the channel with appropriate boundary conditions. The accuracy of the model is verified by comparing the model＇s results with the 2D simulation results from ATLAS over a wide range of channel lengths and other parameters,including the dielectric constant of gate-dielectric material.

关键词： recessed-source/drain (Re-S/D) high-k gate-material fringing field and SCEs

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A Quasi-3D Threshold Voltage Model for Dual-Metal Quadruple-Gate MOSFETs

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Chinese Physics Letters 2014年第12期31卷 154-156页

作者： Visweswara Rao Samoju Satyabrata Jit pramod kumar Tiwarit Department of Electronics & Communication Engineering National Institute of Technology Rourkela 769008 India Department of Electronics Engineering Indian Institute of Technology (BHU) Varanasi 221005 India

Due to challenges with relentless scaling of conventional bulk complementary metal-oxide- semiconductor （CMOS） devices, non-conventional CMOS devices have been of great interest to scale metaboxide-semiconductor field effect transistors （MOSFETs） to the 32nm gate length and below effectively. Among non-conventional CMOS devices, quadruple-gate （QG） MOSFETs have been gaining interest because they are sup- posed to provide excellent electrostatic controllability for ultra-large-scale integration （ULSI） applications. A number of attempts have been made to analyze QG MOSFETs analytically with a great amount of success. Sharma et al. have presented an an- alytical threshold voltage model for QG MOSFETs using an isomorphic polynomial function for solv- ing the 3D Poisson equation. Chiang has presented a number of models of scaling length,threshold voltage and subthreshold current for QG MOS- FETs adopting a concept of the so-called equivalent number of gates （ENGs）.

关键词： METAL oxide semiconductor field-effect transistors THRESHOLD voltage MATHEMATICAL models CATHODES COMPUTER simulation GATE array circuits

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