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Tourmaline from the Archean *** gold deposit,Chitradurga greenstone belt,Dharwar craton(India):Implications for the gold metallogeny

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Geoscience Frontiers 2014年第6期5卷 877-892页

作者： Susmita gupta m.Jayananda Fareeduddin Geological Survey of India (GSI) NERGuwahatiAssam 781 005India Department of Geology Centre of Advanced StudiesUniversity of DelhiDelhi 110 007India Geochronology and Isotope Geology Division Central HeadquarterGSIKolkata 700 016India

Tourmaline occurs as a minor but important mineral in the alteration zc,ne of the Archean orogenic gold deposit of Guddadarangavanahalli （***） in the Chitradurga greenst^ne belt of the western Dharwar craton, southern India. It occurs in the distal alteration halo of the *** golcl deposit as （a） clusters of very fine grained aggregates which form a minor constituent in the natrix of the altered metabasalt （AmB tourmaline） and （b） in quartz-carbonate veins （vein tourmaline）. ~[＇he vein tourmaline, based upon the association of specific carbonate minerals, is further grouped as （i） albite-tourmaline-ankerite-quartz veins （vein-1 tourmaline） and （ii） albite-tourmaline-calcite-quartz veins （vein-2 tourmaline）. Both the AmB tourmaline and the vein tourmalines （vein-I and vein-2） belong to the alkali group and are clas- sified under schorl-dravite series. Tourmalines occurring in the veins are zoned while the AmB tour- malines are unzoned. mineral chemistry and discrimination diagrams 1eveal that cores and rims of the vein tourmalines are distinctly different. Core composition of the ve：n tourmalines is similar to the composition of the AmB tourmaline. The formation of the AmB tourmaline and cores of the vein tour- malines are proposed to be related to the regional D1 deformational event associated with the emplacement of the adjoining ca. 2.61 Ga Chitradurga granite whilst rims of the vein tourmalines vis-a- vis gold mineralization is spatially linked to the juvenile magmatic accretion （2.56-2.50 Ga） east of the studied area in the western part of the eastern Dharwar craton.

关键词： Tourmaline G.R.HalIi Orogenic gold deposit Dharwar craton Archean

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Spatial Variability of mass movements in the Satluj Valley,Himachal Pradesh during 1990～2006

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Journal of mountain Science 2008年第1期5卷 38-51页

作者： Vikram.gupta m.P.SAH Wadia Institute of Himalayan Geology Dehra Dun-24 8 001 (Uttarakhand)

Satluj Valley is known to have a history of landslides and related mass movement activities since the geological times. Geological and geomorphological settings combined with anthropogenic activities constitute a propensity towards slope failure. During the last two decades,the area witnessed substantial increase in athropogenic pressure,mainly due to the exploitation of hydropower potential,changing landuse pattern and population growth. In addition,a shift of the climatic patterns in the form of larger area falling under the influence of rains was observed. These natural as well as anthropogenic changes in the area have resulted in increased spatial coverage of landslide in the area. This paper documents these changes during 1990～2006.

关键词：空间可变性流域印度 Satluj河

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Synthesis, Characterization and Remedial Action of Biogenic Silver Nanoparticles and Chitosan-Silver Nanoparticles against Bacterial Pathogens

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Journal of Renewable materials 2022年第12期10卷 3093-3105页

作者： Piyush Kumar gupta D.Karthik Kumar m.Thaveena Soumya Pandit Somya Sinha R.Ranjithkumar Walaa F.Alsanie Vijay Kumar Thakur Department of Life Sciences School of Basic Sciences and ResearchSharda UniversityGreater Noida201310Uttar PradeshIndia Viyen Biotech LLP CoimbatoreTamil Nadu641031India Department of Biotechnology Kongunadu Arts and Science CollegeCoimbatoreTamil Nadu641029India Department of Biotechnology Graphic Era Deemed to be UniversityDehradunUttarakhand248002India Department of Clinical Laboratories Sciences The Faculty of Applied Medical SciencesTaif UniversityTaif21944Saudi Arabia Biorefining and Advanced materials Research Center SRUCEdinburghEH93JGUK Department of mechanical Engineering School of EngineeringShiv Nadar UniversityNoidaGreater Noida201314India School of Engineering University of Petroleum&Energy Studies(UPES)DehradunUttarakhand248007India

Custard apple is a dry land *** leaves exhibit different pharmacological *** the present study,both silver(Ag)nanoparticles and chitosan-coated Ag(Chi-Ag)nanoparticles were fabricated using the aqueous leaf extract of the custard apple *** preliminary phytochemical analysis,various types of phytocompounds were found in the aqueous leaf extract of the same ***,both nanoparticles were physiochemically *** analysis exhibited the fingerprint vibrational peaks of active bioactive compounds in plant extract,Ag nanoparticles,and Chi-Ag ***/Visible spectral analysis revealed the highest absorbance peak at 419 nm,indicating the presence of Ag *** analysis presented the face-centered cubic(FCC)structure of both prepared ***,the average crystalline size of both Ag nanoparticles and Chi-Ag nanoparticles was calculated to be 23 and 74 nm,*** analysis showed the spherical and cubical shapes of Ag nanoparticles and Chi-Ag nanoparticles,*** analysis indicated a peak around 3.29 keV,conforming to the binding energies of Ag *** biogenic nanomaterial also showed strong antibacterial activity against all tested bacterial pathogens.

关键词： Custard apple chitosan Ag nanoparticles Chi-Ag nanoparticles antibacterial

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Population structure analysis and determination of neurotoxin content in a set of grass pea (Lathyrus sativus L.) accessions of Bangladesh origin

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The Crop Journal 2018年第4期6卷 435-442页

作者： Priyanka gupta Sripada m. Udupa Debjyoti Sen gupta Jitendra Kumar Shiv Kumar International Center for Agricultural Research in the Dry Areas Rabat Institute Rabat Morocco Department of Plant Sciences North Dakota State University Fargo ND 58105 USA ICAR-Indian Institute of Pulses Research Kanpur Uttar Pradesh 208024 India

Grass pea(Lathyrus sativus L.) is a crop that is considered one of the more resilient to climate change. With protein-rich seeds and leaves, it has strong potential as human food as well as animal feed and fodder. However, genetic improvement in this crop remains stagnant owing to the poor characterization of its genetic resources. In this study, we characterized 118 accessions of grass pea with 18 EST-SSR markers. A total of 118 accessions, 101 of L. sativus(100 cultivated accessions from Bangladesh and one wild accession) and 17 wild accessions of other Lathyrus species, were used. A total of 67 alleles were detected, with an average of 3.72 alleles per locus and average polymorphism information content of 0.52. A dissimilarity matrix was formed and hierarchical cluster analysis performed using the UPGmA method grouped genotypes into four main clusters. Cluster analysis based on the genetic dissimilarity revealed a clear grouping of the 100 cultivated and 18 wild accessions into four main groups. Group I consisted of 20 accessions with high β-N-oxalyl-L-α,β-diaminopropionic acid(β-ODAP) concentration. Of these 20 accessions, 17 were wild accessions. Only one wild accession(L. cicera) was clustered in group II, which contained 35 accessions. most of the group II accessions contained low β-ODAP. Group III was represented by 34 accessions, many of them with high β-ODAP. Group IV consisted of 29 accessions, a few of which had very high β-ODAP concentrations. Analysis of molecular variance of the microsatellite data showed significantly higher values of molecular variance between(83%) than within(17%) populations. These characterized accessions will be useful in grass pea breeding programs.

关键词：草豌豆蛋白质植物学气候

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Development and Characterization of Sol-gel Derived Al Doped ZnO/p-Si Photodiode

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Journal of materials Science & Technology 2010年第3期26卷 223-227页

作者： Babita gupta Anubha Jain R.m.mehra Department of Electronic Science University of Delhi South Campus

The effect of Al doping on the J-V characteristics sol-gel derived of ZnO/p-Si photodiodes was *** resistivity of Si was 0.1Ω·*** films annealed at 500℃ were of the best *** investigate the spectral response of the photodiodes,the J-V characteristics were measured under different monochromatic lights at wavelength 420,530,570 and 630 *** diodes exhibit strong responsivity in the blue region at 420 *** responsivity is 0.22 A/W for Al doped （0.8 wt pct） photodiode,whereas for the undoped photodiode,it was much *** estimate of the responsivity as a function of wavelength has been made in terms of the width of depletion region of photodiodes.

关键词： Sol-gel Al doping Photodiode J-V characteristics Responsivity

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Co-inoculation of indigenous Pseudomonas oryzihabitans and Bradyrhizobium *** the growth,symbiotic efficacy,nutrient acquisition,and grain yield of soybean

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Pedosphere 2022年第3期32卷 438-451页

作者： Kailash Chand KUmAWAT Inderjeet SINGH Sharon NAGPAL Poonam SHARmA Rajeev Kumar gupta Asmita SIRARI Department of microbiology Punjab Agricultural UniversityLudhiana 141004(India) Department of Plant Breeding and Genetics Punjab Agricultural UniversityLudhiana 141004(India) Department of Soil Science Punjab Agricultural UniversityLudhiana 141004(India)

Soil microbes play a vital role in improving plant growth,crop productivity,and soil health through solubilization of essential *** investigation was conducted to access the efficacy of Bradyrhizobium ***-3 and the indigenous phosphate-solubilizing Pseudomonas oryzihabitans LSE-3 in improving the symbiosis,nutrient accumulation,and yield of *** isolate LSE-3,selected on the basis of phosphate solubilization,was screened for beneficial traits,antagonistic activities,and *** levels of indole acetic acid production(50.34±2.35μg mL^(-1)),phosphate solubilization(184.4±7.4 mg L^(-1)),biofilm formation(optical density at 560 mm,1.3896±0.04),siderophore production(121.46±1.61μg mL^(-1)),and 1-aminocyclopropane-1-carboxylate deaminase activity(0.51±0.07 mmolα-ketobutyrateμg^(-1) protein h^(-1))were significantly higher with the dual inoculants(LSBR-3 and LSE-3)than with the single inoculant *** plant growth-promoting traits of single and dual inoculants were evaluated for the synergistic effects on soybean under field *** plots treated with LSBR-3+LSE-3 exhibited improvement in seed germination,plant height,plant biomass,and chlorophyll content compared with the uninoculated *** inoculant treatments resulted in significantly higher symbiotic efficacy evidenced by increased nodulation(40.0±0.75 plant^(-1)),nodule biomass(188.52±6.29 mg plant^(-1)),and leghemoglobin content(11.02±0.83 mg g^(-1) fresh nodule),and significantly increased activities of phosphatase(75.16±3.17 and 58.77±6.08μg p-nitrophenol g^(-1) h^(-1) for alkaline and acid phosphatase,respectively)and dehydrogenase(32.66±1.92μg triphenylformazan g^(-1) h^(-1))compared with the *** inoculation with LSBR-3 and LSE-3 enhanced the uptake of macro-and micronutrients,reduced Na content in shoots,and resulted in 10.85%higher grain yield and ***$96.80 ha^(-1) higher profit compared with the *** is the first report on the effectiv

关键词： bacteria biofilm formation phosphate solubilization plant growth-promoting trait sustainable agriculture zinc solubilization

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The HB40-JUB1 transcriptional regulatory network controls gibberellin homeostasis in Arabidopsis

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molecular Plant 2022年第2期15卷 322-339页

作者： Shuchao Dong Danuse Tarkowska mastoureh Sedaghatmehr maryna Welsch Saurabh gupta Bernd mueller-Roeber Salma Balazadeh max-Planck Institute of molecular Plant Physiology Am Mühlenberg 114476 Potsdam-GolmGermany Institute of Biology Leiden UniversitySylviusweg 722333 BE LeidenThe Netherlands Laboratory of Growth Regulators Czech Academy of SciencesInstitute of Experimental Botany&Palacky UniversityŠlechtitelû2778371 OlomoucCzech Republic University of Potsdam Institute of Biochemistry and BiologyKarl-Liebknecht-Stra?e 24-25Haus 2014476 Potsdam-GolmGermany

The gibberellins(GAs)are phytohormones that play fundamental roles in almost every aspect of plant growth and *** GA biosynthetic and signaling pathways are well understood,the mechanisms that control GA homeostasis remain largely unclear in ***,we demonstrate that the homeobox transcription factor(TF)HB40 of the HD-Zip family regulates GA content at two additive con-trol levels in Arabidopsis *** show that HB40 expression is induced by GA and in turn reduces the levels of endogenous bioactive GAs by simultaneously reducing GA biosynthesis and increasing GA ***,HB40 overexpression leads to typical GA-deficiency traits,such as small rosettes,reduced plant height,delayed flowering,and male *** contrast,a loss-of-function hb40 mutation enhances GA-controlled ***-wide RNA sequencing combined with molecular-genetic ana-lyses revealed that HB40 directly activates the transcription of JUNGBRUNNEN1(JJUB1),a key TF that re-presses growth by suppressing GA biosynthesis and ***40 also activates genes encoding GA 2-oxidases(GA2oxs),which are major GA-catabolic *** effect of HB40 on plant growth is ultimately mediated through the induction of nuclear growth-repressing DELLA ***,our results reveal the important role of the HB40-JUB1 regulatory network in controlling GA homeostasis during plant growth.

关键词： Arabidopsis growth gibberellin homeostasis transcription factor HB40 JUB1 GA 2-oxidase DELLA proteins

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Prevalence and risk factors associated with Japanese encephalitis virus infection in swine population of Assam,India

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Asian Pacific Journal of Tropical medicine 2022年第11期15卷 503-510,I0001-I0009页

作者： mir Hussain Himani Dhanze Deepa mehta m.Suman Kumar Ravi Kumar Gandham megha gupta AG Barua K.P Suresh Balbir B Singh Division of Veterinary Public Health ICAR-Indian Veterinary Research InstituteIzatnagarBareillyIndia Division of Animal Biotechnology ICAR-Indian Veterinary Research InstituteIzatnagarBareillyIndia Department of Veterinary Public Health College of Veterinary ScienceAssam Agricultural UniversityGuwahatiAssamIndia ICAR-National Institute of Veterinary Epidemiology and Disease Informatics BengaluruIndia Centre for One Health Guru Angad Dev Veterinary&Animal Sciences UniversityPunjabIndia

Objective:To assess the prevalence of Japanese encephalitis virus(JEV)and associated risk factors in the swine population of ***:A total of 432 swine serum and blood samples were collected from Barpeta and Sonitpur districts of Assam and were screened for the presence of JEV *** related to risk factors was collected using a self-designed questionnaire from 120 swine-rearing ***-mixed models were used for prevalence *** and multivariate regression models were constructed to evaluate the association of demography,season and management practices with JEV positive ***:Overall,the JEV infection prevalence was 51.6%at farm and 47.1%at slaughter *** analysis of partial sequence of envelope gene of two positive field samples revealed that both isolates belonged to genotypeⅢ*** 1 shared a common clade with human isolates while isolate 2 belonged to the same clade as that of other JEV swine strain isolated from *** final multivariate model showed that two factors including monsoon season(Adjusted OR 5.6;95%CI 2.1-14.9;Pm state indicates a significant risk of virus transmission to humans while risk factor study underlines the urgent need for awareness campaigns in the Assam.

关键词： Japanese encephalitis virus Genotypes Prevalence Risk factors Swine

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Cardiometabolic risk factors in young Indian men and their association with parameters of insulin resistance and beta-cell function

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World Journal of Cardiology 2022年第8期14卷 462-472页

作者： Yashdeep gupta Alpesh Goyal mani Kalaivani Nikhil Tandon Department of Endocrinology and metabolism All India Institute of Medical SciencesNew Delhi 110029DelhiIndia Department of Biostatistics All India Institute of Medical SciencesNew Delhi 110029DelhiIndia

BACKGROUND There is an unmet need to evaluate the burden of cardiometabolic risk factors in young South Asian adults,who are not preselected for *** To evaluate young North Indian men(aged 20-50 years)for burden of cardiometabolic risk factors,in relation to parameters of homeostatic model assessment for insulin resistance(HOmA-IR)and beta-cell function(oral disposition index[oDI]).mETHODS Study participants were invited in a fasting ***,anthropometric,and medical data were collected,and 75 g oral glucose tolerance test was performed with serum insulin and plasma glucose estimation at 0,30,and 120 *** were divided into quartiles for HOmA-IR and oDI(category 1:Best HOmA-IR/oDI quartile;category 3:Worst HOmA-IR/oDI quartile)and composite HOmA-IR/oDI phenotypes(phenotype 1:Best quartile for both HOmA-IR and oDI;phenotype 4:Worst quartile for both HOmA-IR and oDI)were *** We evaluated a total of 635 men at a mean(±SD)age of 33.9±5.1 years and body mass index of 26.0±3.9 kg/m^(2).Diabetes and prediabetes were present in 34(5.4%)and 297(46.8%)participants,***/obesity,metabolic syndrome,and hypertension were present in 388(61.1%),258(40.6%),and 123(19.4%)participants,*** prevalence of dysglycaemia,metabolic syndrome,and hypertension was significantly higher in participants belonging to the worst HOmA-IR and oDI quartiles,either alone(category 3 vs 1)or in combination(phenotype 4 vs 1).The adjusted odds ratios for dysglycaemia(6.5 to 7.0-fold),hypertension(2.9 to 3.6-fold),and metabolic syndrome(4.0 to 12.2-fold)were significantly higher in individuals in the worst quartile of HOmA-IR and oDI(category 3),compared to those in the best quartile(category 1).The adjusted odds ratios further increased to 21.1,5.6,and 13.7,respectively,in individuals with the worst,compared to the best composite HOmA-IR/oDI phenotypes(phenotype 4 vs 1).CONCLUSION The burden of cardiometabolic risk factors is hi

关键词： Cardiometabolic Insulin resistance Asian Disposition index men Young

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A flexible and scalable scheme for mixing computed formation energies from different levels of theory

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npj Computational materials 2022年第1期8卷 1857-1867页

作者： Ryan S.Kingsbury Andrew S.Rosen Ayush S.gupta Jason m.munro Shyue Ping Ong Anubhav Jain Shyam Dwaraknath matthew K.Horton Kristin A.Persson Department of materials Science and Engineering University of California BerkeleyBerkeleyCA94720USA Energy Technologies Area Lawrence Berkeley National LaboratoryBerkeleyCA94720USA materials Science Division Lawrence Berkeley National LaboratoryBerkeleyCA94720USA miller Institute for Basic Research in Science University of CaliforniaBerkeleyCA94720USA University of California San Diego La JollaCA92093USA molecular Foundry Lawrence Berkeley National LaboratoryBerkeleyCA94720USA

Computational materials discovery efforts are enabled by large databases of properties derived from high-throughput density functional theory(DFT),which now contain millions of calculations at the generalized gradient approximation(GGA)level of *** is now feasible to carry out high-throughput calculations using more accurate methods,such as meta-GGA DFT;however recomputing an entire database with a higher-fidelity method would not effectively leverage the enormous investment of computational resources embodied in existing(GGA)***,we propose here a general procedure by which higher-fidelity,low-coverage calculations(e.g.,meta-GGA calculations for selected chemical systems)can be combined with lower-fidelity,high-coverage calculations(e.g.,an existing database of GGA calculations)in a robust and scalable *** then use legacy PBE(+U)GGA calculations and new r2SCAN meta-GGA calculations from the materials Project database to demonstrate that our scheme improves solid and aqueous phase stability predictions,and discuss practical considerations for its implementation.

关键词： theory scheme theory

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