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350篇 您的检索式:作者名="Mahato"
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1First fossil evidence of Palaeocarya(Engelhardioideae:Juglandaceae)from India and its biogeographical implications显示文摘Even though presently indigenous to eastern Himalaya in India,no Engelhardioideae have been reported from the Cenozoic sediments of India till date.Here,we report the first Indian occurrence of a characteristic engelhardioid winged samaroid fruit having a tri-lobed wing(oblong-ovate median lobe and two lateral lobes)and a globose nut from the latest Neogene(Pliocene:Rajdanda Formation)sediments of Chotanagpur Plateau,eastern India.This is the first fossil evidence of relict family Juglandaceae from the Indian Cenozoic.We determine its taxonomic position on the basis of detailed macromorphological comparison with similar extant and fossil specimens and discuss its palaeoclimatic significance in terms of the present-day distribution of modern analogous species.We assign this Pliocene winged fruit specimen to the morphogenus Palaeocarya sect.Monocosta Manchester and describe it as a new species,namely Palaeocarya indica Hazra,Hazra M&Khan sp.nov.Palaeocarya sect.Monocosta has rich fossil records from the Cenozoic sediments of Europe,North America,and eastern Asia(China,Korea),but the modern analog,Engelhardia,is presently native only to India and neighboring Southeast Asia.We discuss the possible causes of disappearance of Engelhardia from the present-day vegetation of Chotanagpur Plateau.Its disappearance may be related to the gradual intensification of monsoonal rainfall seasonality since the Pliocene.Here,we also review in detail the biogeographic history of Palaeocarya sect.Monocosta and suggest its possible migration routes.Taposhi Hazra Manoshi Hazra Sanchita Kumar Sumana Mahato Meghma Bera Subir Bera Mahasin Ali Khan 2021Journal of Systematics and Evolution2021,59,6:3
2Flood susceptibility modelling using advanced ensemble machine learning models显示文摘Floods are one of nature's most destructive disasters because of the immense damage to land,buildings,and human fatalities.It is difficult to forecast the areas that are vulnerable to flash flooding due to the dynamic and complex nature of the flash floods.Therefore,earlier identification of flash flood susceptible sites can be performed using advanced machine learning models for managing flood disasters.In this study,we applied and assessed two new hybrid ensemble models,namely Dagging and Random Subspace(RS)coupled with Artificial Neural Network(ANN),Random Forest(RF),and Support Vector Machine(SVM)which are the other three state-of-the-art machine learning models for modelling flood susceptibility maps at the Teesta River basin,the northern region of Bangladesh.The application of these models includes twelve flood influencing factors with 413 current and former flooding points,which were transferred in a GIS environment.The information gain ratio,the multicollinearity diagnostics tests were employed to determine the association between the occurrences and flood influential factors.For the validation and the comparison of these models,for the ability to predict the statistical appraisal measures such as Freidman,Wilcoxon signed-rank,and t-paired tests and Receiver Operating Characteristic Curve(ROC)were employed.The value of the Area Under the Curve(AUC)of ROC was above 0.80 for all models.For flood susceptibility modelling,the Dagging model performs superior,followed by RF,the ANN,the SVM,and the RS,then the several benchmark models.The approach and solution-oriented outcomes outlined in this paper will assist state and local authorities as well as policy makers in reducing flood-related threats and will also assist in the implementation of effective mitigation strategies to mitigate future damage.Abu Reza Md Towfiqul Islam Swapan Talukdar Susanta Mahato Sonali Kundu Kutub Uddin Eibek Quoc Bao Pham Alban Kuriqi Nguyen Thi Thuy Linh 2021Geoscience Frontiers2021,12,3:2
3Water-soluble lipopolymer for gene delivery 显示文摘HAN S MAHATO R I KIM S W 2001Bioconjug Chem2001,12,3:1
4Colossalmagnetoresistance in the double perovskite oxide La(2)CoMnO(6)显示文摘Mahato R N Sethupathi K Sankaranarayanan V 2010J Appl Phys2010,107,09:1
5Shellac as filler in sheet moulding compound显示文摘D N Goswami P C Jha K Mahato 2004Indian Journal of Chemical Technology2004,11,1:1
6Optimization of factors influencing the transfection efficiency of folate-PEG-folate-graft-polyethylenimine显示文摘Benns JM Mahato RI Kis SW 2002Journal of Controlled Release2002,79,1:1
7Biological and biomaterial approaches for improved islet transplantation显示文摘Narang AS Mahato RI 0,,02:1
8Triterenoids and the glycosides from Terminalia chebula 显示文摘Kundu A P Mahato S B 1993Phytochemistry1993,32,:1
9Optimization of factors influencing the transfection efficiency of folate-PEG-folate-graftpolyethylenimine显示文摘BENNS J M MAHATO R I KIM S W 2002J Controlled Release2002,79,13:1
10Advance in microbial steroid biotransformation显示文摘Mahato SB Garai S 1997Steroids1997,62,:1
11Biodistribu tion and gene expression of lipid/plasmid complexes after systemic administration显示文摘MAHATO RI ANWER KS TAGLIAFERRI F 1998Hum Gene Ther1998,9,14:1
12Effect of texture on corrosion behavior of AISI 304L stainless steel显示文摘B. Ravi Kumar Raghuvir Singh Bhupeshwar Mahato P.K. De N.R. Bandyopadhyay D.K. Bhattacharya 2004Materials Characterization2004,,2:1
13Ratiometric detection of Cr3+and Hg2+by a naphthalimide-rhodamine based fluorescent probe显示文摘Mahato P Saha S Suresh E Liddo R D Parnigotto P P Conconi M T Kesharwani M K Ganguly B Das A 2012Inorganic Chemistry2012,51,:1
14Steroid saponins 显示文摘 Ganguly AN Sahu NP 1982Phytochemistry1982,21,5:1
15Effect of calcina-tions temperature of CuO nanoparticle on the kinetics of decon-tamination and decontamination products of sulphur mustard显示文摘Mahato TH Singh B Srivastava AK 2011J Hazard Mater2011,192,3:1
16Synthesis and char- acterization of metal ion imprinted nano-porous polymer for the selective recognition of copper 显示文摘Anuradha Baghel M Boopathi Beer Singh Pratibha Pandey T H Mahato P K Sekhar 2007Biosensors and Bioelectronics2007,22,12:1
17^13C NMR spectra of pentacyclic triterpenoids-a compilation and some salient features 显示文摘Mahato S B Kundu A P 1994Phytohemistry1994,37,6:1
18Optimization of factors influencing the transfection efficiency of folate-PEG-folate-graft-polyethylenimine 显示文摘BENNS J M MAHATO R I KIM S W 2002J Control Release2002,79,13:1
19Gene modulation for treating liver fibrosis显示文摘Cheng K Mahato RI 0,,:1
20Potential antitumor agents from Lantana camara:Structures of flavonoidand phenylpropanoid glycosides显示文摘MAHATO S B SAHU N P ROY S K 1994Tetrahedron1994,50,31:1
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