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Local perceptions of grassland change and priorities for conservation of natural resources of Banni, gujarat, India

Frontiers in Biology 2009年第4期4卷 549-556页

作者： P.N.JOSHI V.KUMAR M.KOLADIYA Y.S.PATEL T.KARTHIK gujarat Institute of Desert Ecology Gujarat 370001 India

This study was conducted in the Banni region of the gujarat State,India,which is located in the western-most end of the *** main objective was to investigate the local perceptions of grassland change,regeneration potentiality,socio-economic status and fac-tors that cause degradation of the vegetation resources in *** Rural Appraisal(PRA)was employed to generate the socio-economic profile of interviewed villages or *** on vegetation deteriora-tion and changes in species composition significant for sustainable management of grassland was obtained through interviews with 51 elderly maldharies(pastoral-ists)and local inhabitants living in 31 villages in *** people had observed a change in the local surrounding habitats from grassland to woodland(domi-nated by Prosopis juliflora,locally called Gando Bavar)during their lifetime and considered it primarily a result of frequent intensive drought,constructed dams on flooding rivers in Banni,and declining *** socio-economic survey showed that the Banni communities are highly dependent on the natural grassland for various *** particular,nine woody species were useful for construction of the traditional house called Bhunga,four for medicine and 22 for livestock *** preferred and declining species were characteristically large wild thorny trees with edible fruits,*** nilotica ***(Bavar),Prosopis cineraria(Kandho),and Salvadora persica(Kharijar).Some of the locally highly preferred grass species were also considered to be declining in the local environs;they included Dichanthium annulatum(Jinjvo),Cenchrus ciliaris(Dhaman),Sporobolus fertilis(Khevai)and Chloris barbata(Siyarpuchha).The study furthermore identified a close coincidence between the interest in conserving tree species diversity nearby the natural water resources and priorities of local inhabitants,which included protection of plenty of large trees(including many fruit tress,viz.

关键词： India Kachchh pastoralist grassland arid areas conservation natural resource overgrazing

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Observation of free oscillations after the 2010 Chile and 2011 Japan earthquakes by superconducting gravimeter in Kutch,gujarat,India

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Geodesy and Geodynamics 2023年第1期14卷 52-64页

作者： Chandra Sekhar Pedapudi Madhusudhana Rao Katlamudi Severine Rosat Institute of Seismological Research GandhinagarGujaratIndia Department of Earth Sciences Gujarat UniversityAhmedabadGujaratIndia Institut Terre et Environnement de Strasbourg CNRS UMR 7063StrasbourgFrance

In this paper,we present observations of free oscillations of the Earth after major earthquakes in Chile(February 27,2010,Mw8.8)and Japan(March 11,2011,Mw9.1)using data from the dual-sphere superconducting gravimeter(SG-055),installed at Badargadh(23°0.47 N,70°0.62 E),Kutch,gujarat,India in March *** see the noise characteristics,we calculated the power spectral density of the gravity time series of 5 quiet days in the frequency band 0.05-20 mHz using the new low noise model(NLNM)as a *** compared the noise level of the Badargadh site to other SG sites around the *** shows that the Badargadh SG is in a low noise *** find that the noise increases at frequencies below 1 *** a characteristic is also observed in Djougou(Afrique,Benin)and Strasbourg(France).Using theoretical tides for gujarat,we estimated a scale factor of about-814 nm/s~2/V for Gravl(lowersphere)and about-775 nm/s~2/V for Grav2(upper-sphere).We corrected the influence of atmospheric pressure from the one-second gravity data before switching to the frequency *** extracted a total of 53 Earth’s Free Oscillations(EFO)modes during the earthquake in Japan and about 47 EFO modes during the earthquake in *** are able to extract the lowest0S2spheroidal mode(0.30945 mHz or54 min)and0S0radial mode(0.81439 mHz or 20 min).The longer time series shows individual0S2singlets and0S3(0.46855 mHz)singlets due to the Coriolis splitting *** cross-referenced the frequencies of these modes using the PREM model and previous global *** correlation coefficient between the observed and the PREM model for these two events are 0.999 for Japan earthquake and 0.993 for Chile *** validates the quality of the data useful for low-frequency studies in *** also calculated the relative deviations of our observed fundamental modes with previously determined observed and theoretical *** found that the relative deviations of our observed free oscillations

关键词： Superconducting gravity data Free oscillations PREM model

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New distribution record of Cyathus stercoreus(Schwein.)De Toni(Nidulariaceae)for India from gujarat state

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Studies in Fungi 2018年第1期3卷 227-233页

作者： Patel RS Vasava AM Rajput KS Department of Botany Faculty of ScienceThe Maharaja Sayajirao University of BarodaVadodara 390002India

Cyathus stercoreus(Schwein.)De Toni(Nidulariaceae)was collected from Shoolpaneshwar Wildlife Sanctuary from the Narmada districts of gujarat state,*** study reports *** as a new distribution record from the gujarat *** was identified by using morphological features and further confirmation was carried out by using molecular methods with its DNA *** sequence is submitted into NCBI and molecular data are submitted into BOLD data system for DNA barcoding.

关键词： Cyathus DNA barcoding gujarat Nidulariaceae

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Surface-engineered gadolinium oxide nanorods and nanocuboids for bioimaging

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Rare Metals 2021年第4期40卷 848-857页

作者： Nitya Ramesh Chawda Santosh Kumar Mahapatra Indrani Banerjee School of Nano Sciences Central University of GujaratGandhinagar 382030India Department of Physical Sciences Central University of PunjabBathinda 151001India

Folic acid and D-gluconic acid-capped gadolinium oxide nanorods and nanocuboids were synthesized via co-precipitation *** study of relaxivity factor on the role of capping and morphology for enhancing contrast ability for T_(1) and T_(2) magnetic resonance imaging(MRI) was *** obtained r_(2)/r_(1) ratio for folic acid and D-gluconic acid-capped gadolinium oxide nanorods and nanocuboids was 1.5 and 1.3,*** nanocrystals were characterized and presented with properties such as good dispersity and stability required for standard contrast agent used in *** characterization and the analysis of capping agent for nanocrystals suggest the preferable use of carbohydrate moieties with higher number of hydroxyl functional group reacted with urea and hydrogen peroxide for desired morphology and anisotropic ***-differential thermal analysis(TG-DTA) illustrated the amount of capping,transition temperature from Gd(OH)3 to GdOOH and crystallization temperature from GdOOH to *** nanocrystals would be significant for other biomedical applications such as drug delivery when equipped with well-functionalized drug molecules.

关键词： Contrast agent Nanomaterials Magnetic resonance imaging Imaging

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Analytical method for cell displacement defect quantum-dot cellular automata primitive

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Journal of Electronic Science and Technology 2023年第1期21卷 26-34页

作者： Vaishali Dhare Usha Mehta Institute of Technology Nirma UniversityAhmedabad382481India

Quantum-dot cellular automata(QCA)is an emerging computational paradigm which can overcome scaling limitations of the existing complementary metal oxide semiconductor(CMOS)*** existence of defects cannot be ignored,considering the fabrication of QCA devices at the molecular level where it could alter the ***,defects in QCA devices need to be *** far,the simulation-based displacement defect analysis has been presented in the literature,which results in an increased demand in the corresponding mathematical *** this paper,the displacement defect analysis of the QCA main primitive,majority voter(MV),is presented and carried out both in simulation and mathematics,where the kink energy based mathematical model is *** results demonstrate that this model is valid for the displacement defect in QCA MV.

关键词： Displacement defect Kink energy Majority voter(MV) Quantum-dot cellular automata (QCA)

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Articulating beneficial rhizobacteria-mediated plant defenses through induced systemic resistance:A review

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Pedosphere 2023年第4期33卷 556-566页

作者： Aniruddh RABARI Janki RUPARELIA Chaitanya Kumar JHA Riyaz Z.SAYYED Debasis MITRA Ankita PRIYADARSHINI Ansuman SENAPATI Periyasamy PANNEERSELVAM Pradeep K.DAS MOHAPATRA Department of Microbiology and Biotechnology Gujarat UniversityAhmedabadGujarat 380006(India) Microbiology Department Gujarat Arts and Science CollegeEllisbridgeAhmedabadGujarat 380006(India) Department of Microbiology PSGVP Mandal's ArtsScience and Commerce CollegeMaharashtraShahada 425409(India) Department of Microbiology Raiganj UniversityRaiganjUttar DinajpurWest Bengal 733134(India) Crop Production Division Indian Council of Agriculture Research(ICAR)-National Rice Research InstituteCuttackOdisha 753006(India) Professor A.K.B.Environment Conservation Centre Raiganj UniversityRaiganjWest Bengal 733134(India)

Induced systemic resistance(ISR)is a mechanism by which certain plant beneficial rhizobacteria and fungi produce immunity,which can stimulate crop growth and resilience against various phytopathogens,insects,and *** beneficial rhizobacteria and fungi improve plant performance by regulating hormone signaling,including salicylic acid(SA),jasmonic acid(JA),prosystemin,pathogenesis-related gene 1,and ethylene(ET)pathways,which activate the gene expression of ISR,the synthesis of secondary metabolites,various enzymes,and volatile compounds that ultimately induce defense mechanisms in *** protect themselves from disease,plants have various advanced defense mechanisms in which local acquired resistance,systemic gene silencing,systemic wound response,systemic acquired resistance(SAR),and ISR are *** rhizobacteria activate the SA-dependent SAR pathway by producing SA at the root’s *** contrast,other rhizobacteria can activate different signaling pathways independent of SA(SA-independent ISR pathways)such as those dependent on JA and ET *** main objective of this review is to provide insight into the types of induced resistance utilized for plant *** to this,the genetic approaches used to suppress disease-causing genes,i.e.,RNA interference and antisense RNA,which are still underutilized in sustainable agriculture,along with the current vision for virus-induced gene silencing are also discussed.

关键词： biocontrol gene silencing local acquired resistance phytohormone secondary induced resistances signaling pathways systemic acquired resistance

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Antidiabetic claims of Tinospora cordifolia(Willd.)Miers:critical appraisal and role in therapy

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Asian Pacific Journal of Tropical Biomedicine 2015年第1期5卷 68-78页

作者： Rohit Sharma Hetal Amin Galib Pradeep Kumar Prajapati Department of Rasashastra and Bhaishajya Kalpana Including Drug Research I.P.G.T.& R.A.Gujarat Ayurved University Department of Basic Principles including Drug Research I.P.G.T.& R.A.Gujarat Ayurved University

Currently,available conventional options for diabetes mellitus have certain limitations of their own,and options from medicinal plants with antihyperglycemic activities are being searched to meet the *** properties of Tmospora cordifolia are highly appreciated in Ayurveda and even in recent modern *** studies on its extracts(viz,***,*** regulator etc.) and isolated phytoconstituents(like tinosporin,*** etc.) have reported that it is a preventive and curative antidiabetic herb,which are substantiated by clinical *** information pertaining to antidiabetic potential of Tmospora is *** review encompasses(i) in-depth information of reported antidiabetic activities of the plant in light of available experimental and clinical studies,and(ii) understanding on the possible mechanism of its action in combating the complex pathology of diabetes.

关键词： Diabetes mellitus Guduchi Herbal remedies Tinospora cordifolia Traditional medicine

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Provenance variations in proximate principles,mineral matter,total phenols and phytochemicals of Melia dubia drupes:an unexplored alternate livestock feed stock

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Journal of Forestry Research 2021年第1期32卷 119-131页

作者： M.L.Sukhadiya N.S.Thakur V.R.Patel R.P.Gunaga V.B.Kharadi K.K.Tyagi Susheel Singh Department of Silviculture and Agroforestry College of ForestryNavsari Agricultural UniversityNavsariGujarat 396450India Department of Animal Nutrition Vanbandhu College of Veterinary Sciences and Animal HusbandryNavsari Agricultural UniversityNavsariGujarat 396450India Food Quality Testing Laboratory N.M.College of AgricultureNavsari Agricultural UniversityNavsariGujarat 396450India Sardar Vallabhbhai Patel University of Agriculture and Technology MeerutIndia

This research was carried out on nine provenances from the north Western Ghats to quantify proximate principles,mineral matter,total phenols and other phytochemicals in Melia dubia drupe *** biometric,biomass attributes,proximate principles,mineral matter and total phenols diff ered signifi cantly among the *** average drupe length and width was 26.5 and 22.3 mm,*** drupe and pulp fresh weight,pulp dry weight and stone weight were 783.1,552.1,165.1,and 179.8 g/100 drupes,***,dry matter and moisture per cent were 70.5%,29.9%and 70.0%,*** crude fi bre,protein,ether extract,total ash and nitrogen-free extract were 8.3%,7.6%,5.1%,6.3%,and 72.6%,*** Ca,Mg,P and K levels were 0.5%,0.2%,0.2%,and 2.0%,*** phenols were 0.4%.Cluster analysis showed that the study area may be divided into three distinct provenances,each having diff erent drupe traits and proximate composition,including mineral ***-chromatography mass-spectrometry analysis revealed 27 phytochemicals,many of which possess benefi cial biological *** implications of this provenance variation study should be useful for future improvement in terms of better drupe pulp nutrition for livestock *** study suggests that *** pulp could be categorized as a good feed source with low fi bre,energy,fat and mineral *** proximate parameters,mineral matter content and total phenols are within prescribed limits.

关键词： Melia dubia Drupe pulp Proximate principles Minerals Phytochemicals

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An overview of chemical enhanced oil recovery and its status in India

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Petroleum Science 2023年第4期20卷 2305-2323页

作者： Ganesh Kumar Pothula Rakesh Kumar Vij Achinta Bera Department of Petroleum Engineering School of Energy TechnologyPandit Deendayal Energy UniversityGandhinagarGujarat382007India

India is currently producing crude oil from matured fields because of insufficient discoveries of new ***,in order to control the energy crisis in India,enhanced oil recovery(EOR)techniques are required to reduce the import of crude from the OPEC(Organization of the Petroleum Exporting Countries).This review mentions chemical EOR techniques(polymers,surfactants,alkali,nanoparticles,and combined alkali-surfactant-polymer flooding)and operations in *** EOR methods are one of the most efficient methods for oil *** efficiency is enhanced by interfacial tension(IFT)reduction using surfactants and alkali,and mobility control of injected water is done by adding a polymer to increase the volumetric sweep *** paper also reviews the current trend of chemical EOR,prospects of chemical EOR in Indian oilfields,the development of chemical EOR in India with their challenges raising with economics,and screening criteria for chemical EOR implementation on the field ***,the review gives a brief idea about chemical EOR implementation in Indian oilfields in future prospects to increase the additional oil recovery from existing depleted fields to reduce the import of crude *** outcome of this review depicts all chemical EOR operations and recovery rates both at the laboratory scale and field scale around the *** additional recovery rates are compared from various chemical EOR methods like conventional chemical flooding methods and conventional chemicals combined with nanoparticles on a laboratory *** development of chemical EOR in the past few decades and the EOR policy given by the government of India has been mentioned in this *** analysis provides an idea about enhanced recovery screening and implementation of chemical EOR methods in existing fields will significantly reduce the energy crisis in India.

关键词： Chemical enhanced oil recovery Surfactant flooding Polymer flooding Indian oilfields Enhanced oil recovery challenges in India Screening criteria

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Fe^(3+)-substitution effect on the thermal variation of J-E characteristics and DC resistivity of quadruple perovskite CaCu_(3)Ti_(4)O_(12)

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Journal of Semiconductors 2022年第3期43卷 47-56页

作者： Kunal B.Modi Pooja Y.Raval Dolly J.Parekh Shrey K.Modi Niketa P.Joshi Akshay R.Makadiya Nimish H.Vasoya Utpal S.Joshi Department of Physics Saurashtra UniversityRajkot 360005India Department of Physics C.U.Shah UniversityWadhwan CitySurendranagar 363030India Department of Environment Engineering L.D.Engineering CollegeAhmedabad 380015India Department of Balbhavan Children´s UniversitySector-20Gandhinagar 382015India Department of Physics University School of SciencesGujarat UniversityAhmedabad 380009India

The electrical properties of cubic perovskite series,CaCu_(3-x)Ti_(4-x)Fe_(2x)O_(12)with x=0.0,0.1,0.3,0.5,and 0.7,have been studied by employing current density as a function of electric field characteristics registered at different temperatures and thermal variations of direct current electrical resistivity *** of the compositions exhibit strong non-ohmic *** concentration dependence of breakdown field,the temperature at which switching action takes place,and maximum value of current density(J_(max))has been explained on account of structural,microstructural,and positron lifetime *** highest ever reported value of J_(max)=327 mA/cm^(2)has been observed for pristine *** values of the nonlinear coefficient advise the suitability of ceramics for low-voltage varistor *** Arrhenius plots show typical semiconducting *** activation energy values indicate that electric conduction proceeds through electrons with deformation in the system.

关键词： perovskites magnetic materials J-E characteristics capacitor

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