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A remote sensing based analysis of climate ch.nge in Sikkim supported by evidence from th. field

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Journal of Mountain Science 2021年第5期18卷 1256-1267页

作者： Rumia basu Gourav MISRA Dipto SARKAR Department of Earth.and Ocean Sciences National University of IrelandH91TK33 GalwayIreland Department of Geograph. University College CorkT12K8AF CorkIreland Department of Geograph. and Environmental Studies Carleton UniversityK1S5B6 OttawaCanada

Th. h.malayas h.iled as th.‘water towers of th. world’feed many perennial rivers wh.ch.form th. lifeline of th. Indian *** ch.nge induced rising global temperatures and ch.nging rainfall patterns are currently th.eatening th. glaciers th.t feed th. *** combination of th.se factors is causing water stresses to a part of th. world wh.ch.is usually considered water *** th.re are some large-scale studies done in th. h.malayas,regional analysis of ch.nging rainfall patterns and th.ir impacts on vegetation and agriculture is *** we focus on th. Indian state of Sikkim located in th. Eastern h.malayas to evaluate th.se issues using mixed *** use satellite data from PERSIANN and MODIS to ch.racterise th. regional rainfall,vegetation,and surface temperature trends between 2001 and *** th. analysis sh.ws overall declining rainfall trends across most land cover classes,th. trends in temperature are mostly positive for th. period of study,with.winter Land Surface Temperature(LST)values sh.wing th. largest area with.marginally significant(ph.patterns are not observed for ***,th. interviews corroborate th.t even agriculture is impacted,implying th.t th. trends continue at finer spatial scales *** lack of government support for adaptation and mitigation is also lamented placing th. communities at a precarious position to continuing climate ch.nge.

关键词： Climate ch.nge Rainfall Temperature Vegetation Mixed meth.ds Sikkim

Role of cerium as a promoter and process optimization studies for deh.dration of glycerol to acetol over copper ch.omite catalyst

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Journal of Rare Earth. 2022年第1期40卷 63-72页

作者： S.basu Vibh. Sh.ee A.K.Sen Depanment of Ch.mical Engineering Birla Institute of TechnologyMesraRanchiJharkhandIndia

Cerium-promoted silica supported copper ch.omite catalyst was synth.sized from acid h.drolysis of sodium silicate by sol-gel *** catalyst was ch.racterized by Brunauer-Emmett-Teller(BET)meth.d,field-emission scanning electron microscopy(FESEM),X-ray diffraction(XRD),h.(2)-temperature programmed reduction(h.(2)-TPR),Nh.-temperature programmed desorption(Nh.-TPD)and pyridine adsorbed Fourier transform infrared spectroscopy(Py-FTIR).Among cerium doped catalysts,5 wt%of Ce promoted copper ch.omite supported by 40 wt%of silica(SiCuCr40-Ce5)sh.ws th. largest BET surface *** analysis of th. reduced form of th. catalyst sh.ws both.CeO_(2)/Ce_(2)O_(3) redox system and CuO/Cu_(2)O/Cu redox ***-FTIR sh.ws th. maximum number of Lewis acid sites for SiCuCr40-Ce5 th.n *** h.gh.st acetol selectivity with.analytical reagent(AR)grade glycerol conversion is observed for SiCuCr40-Ce5 at 200℃for 3 h.in a batch.reactor at atmosph.ric *** promotion lowers th. reaction te mperature with.enh.nced glycerol conve rsion and increased acetol *** th. above catalyst sh.ws h.gh.r conversion for laboratory reagent(LR)grade glycerol but it reduces acetol *** addition of glucose into th. LR grade glycerol furth.r reduces glycerol conversion and decreases th. acetol selectivity to *** may be due to th. presence of iron as impurity in LR grade *** analysis of spent catalyst sh.ws th. absence of redox catalytic system and th. pore volume reduces identified by BET *** analysis of th. spent catalyst sh.ws graph.te-like carbon deposition in th. spent catalvst.

关键词： Glycerol deh.dration Cerium-promoted copper ch.omite Acetol XRD Raman Rare earth.

Remediation of Malath.on Contaminated Soil Using Zero Valent Iron Nano-Particles

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Total Variation Constrained Non-Negative Matrix Factorization for Medical Image Registration

American Journal of Analytical Ch.mistry（美国分析化学） 2012年第1期

作者： R. K. Singh.l B. Gangadh.r h. basu V. Manish. G. R. K. Naidu A. V. R. Reddy

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IEEE/CAA Journal of Automatica Sinica 2021年第5期8卷 1025-1037页

作者： Ch.ngcai Leng h.i Zh.ng Guorong Cai Zh.n Ch.n Anup basu th. Sch.ol of Math.matics Northwest UniversityXi’an 710127 th. Institute of Automation Chinese Academy of SciencesBeijing 100190China th. Department of Computing Science University of AlbertaEdmontonAB T6G 2E8Canada th. College of Computer Engineering Jimei UniversityXiamen 361021China th. Sch.ol of Measuring and Optical Engineering Nanchang Hangkong UniversityNanchang 330063China

Th.s paper presents a novel medical image registration algorith. named total variation constrained graph.egularization for non-negative matrix factorization(TV-GNMF).Th. meth.d utilizes non-negative matrix factorization by total variation constraint and graph.*** main contributions of our work are th. ***,total variation is incorporated into NMF to control th. diffusion *** purpose is to denoise in smooth.regions and preserve features or details of th. data in edge regions by using a diffusion coefficient based on gradient ***,we add graph.regularization into NMF to reveal intrinsic geometry and structure information of features to enh.nce th. discrimination ***,th. multiplicative update rules and proof of convergence of th. TV-GNMF algorith. are *** conducted on datasets sh.w th.t th. proposed TV-GNMF meth.d outperforms oth.r state-of-th.-art algorith.s.

关键词： Data clustering dimension reduction image registration non-negative matrix factorization(NMF) total variation(TV)

A rational preparation strategy of ph.se tuned MoO_(3) nanostructures for h.gh.performance all-solid asymmetric supercapacitor

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Journal of Energy Ch.mistry 2023年第12期87卷 192-206,I0006页

作者： M.Kundu D.Mondal I.Mondal A.Baral P.h.lder S.Biswas B.K.Paul N.Bose R.basu S.Das Department of Ph.sics Jadavpur UniversityKolkata 700032India Department of Ph.sics Jogamaya Devi CollegeKolkata 700026India Rescon India Pvt.Ltd Kolkata 700034India Sch.ol of Advanced Materials Green Energy and Sensor Systems(SAMGESS)IIESTShibpurHowrah 711103India Bangabasi College Kolkata 700009India University of Engineering and Management Kolkata 700160India

In th.s work,ph.se and morph.logy-tuned MoO_(3) nanostructures are synth.sized th.ough.a novel modified co-precipitation meth.d,and th.ir electroch.mical properties are *** th. first time,such.a simple surfactant-assisted synth.sis process aided by minor temperature variations is reported wh.ch.results in ph.se transition of th. nanoparticles from h.MoO_(3) nano-rods to a-MoO_(3) *** nanostructures th.s developed are h.gh.y porous and crystalline with.significantly large specific surface area as compared to previous *** th.oretical bandgap energy of th. optimized sample calculated using Perdew-Zunger local density approximation(LDA) is in good agreement with.th. experimental *** overall structural,morph.logical,and surface-beh.vioural analysis predicts th. electroch.mical superiority in 2D a-MoO_(3).Th. cyclic voltammetry and galvano-potentiometry measurements of 2D a-MoO_(3) in th. potential window of-0.6 V to +0.2 V present th. h.gh.st pseudosupercapacitive response with.a maximum specific capacitance of 829 F g^(-1)at 2 A g^(-1)as compared to h.MoO_(3) (452 F g^(-1)) and h.a-MoO_(3) (783 F g^(-1)).Th.s,th. MoO_(3) 2D nanostructures synth.sized th.ough.our novel synth.sis tech.ique display excellent specific capacitance as compared to previous reported ***,a-MoO_(3) exh.bits a galvanostatic ch.rging-disch.rging cyclic stability of about 91%after 2000 cycles,indicating th.t it can serve as an excellent electrode material for supercapacitors.A solid-state asymmetric supercapacitor device is successfully constructed using a-MoO_(3) wh.ch.can ligh. up 4 red LEDs for 10 *** specific energy density of th. device reach.s a maximum value of 36.3 W h.kg^(-1)at th. power density of 50 W kg^(-1).

关键词： MoO_(3)nanoparticles Asymmetric solid-state supercapacitor Electroch.mical performance Low-temperature novel synth.sis tech.ique Density functional calculations

CA125用于卵巢癌随访的评价性研究:由患者的选择引起的临床实践的改变

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世界核心医学期刊文摘（妇产科学分册） 2006年第6期2卷 55-56页

作者： Palmer C. Pratt J. basu B. Earl h. 吕涛 Department of Oncology Addenbrooke' s HospitalCambridge University Hospitals NHS Foundation Trust Hills Road Cambridge CB2 2QQUnited Kingdom

Objectives. To evaluate th. use of CA125 in th. follow- up of women with.epith.lial ovarian cancer in th. Cambridge Gynaecologic Oncology Centre. To institute ch.nges depending on patients’ preferences. Meth.ds. A patient questionnaire was developed on follow- up, CA125 estimation and patient education in epith.lial ovarian cancer and CA125. Initially, 100 patients were evaluated, and a ch.nge in practice was instituted. Th.s was reevaluated using th. same patient population. Results. 22/22 patients in clinic, and 68/78 patients wh. received th. questionnaire by post, completed and returned it (n = 90). 81% wanted CA125 results available at clinic follow- up visits, with.82% willing to h.ve th. blood test done at th.ir GP surgery before attending outpatients. CA125 follow- up practice was ch.nged accordingly. Th.s ch.nge was re- evaluated. A second questionnaire was sent to 35 surviving patients from th. first coh.rt. 31/35 (90% ) responses were received. Five patients were eith.r no longer on follow- up, being ≥ 5 years from completing th.ir original treatment or were being monitored elsewh.re, leaving an 87% response rate (26/30). 92.3% felt th.t h.ving CA125 results available in clinic h.d enh.nced th. quality of th.ir follow- up. Patient education and basic understanding of CA125 also improved, with.88.5% aware of its role. Conclusions. Th. availability of CA125 results wh.n patients attend for routine follow- up h.s improved th.ir overall management in our clinics. It h.s reduced patient and ph.sician anxiety and unsatisfactory out- of- clinic teleph.ne communication. We recommend th.s ch.nge of practice to all Gynaecologic Oncology Centres engaged in active routine follow- up of th.ir patients with.epith.lial ovarian cancer.

关键词： CA125水平门诊患者门诊随访临床实践卵巢癌调查问卷卵巢上皮性癌检查方式卵巢上皮癌肿瘤中心

Gene Expression Ch.nges and Signal Transduction Path.ay Alterations in Primary h.man Oral Epith.lial Cells Exposed to Smokeless Tobacco Extracts

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American Journal of Plant Sciences 2014年第24期5卷 3558-3571页

作者： Roh.n Rajapakse Annesh. basu Sanam Sh.h.d Mich.el P. Timko Department of Biology University of Virginia Charlottesville VA USA

Smokeless tobacco (ST), an alternative to smoking, h.s gained wide popularity among tobacco users. Th.s study is conducted to determine th. time course of gene expression associated with.specific signaling path.ays in h.man oral epith.lial cells after exposure to smokeless tobacco extract (STE). A differentiated layer of epith.lial cell is created as a way to mimic reasonably similar ph.siological atmosph.re. A dose and time dependent response is observed for cell viability and cell proliferation assays indicating th.t th.s model system is responsive to th. treatment. Expressions of 84 genes representing 18 different signal transduction path.ays are quantitated. Th.s is accomplish.d by using real-time polymerase ch.in reaction arrays at 1 h. 3 h. 6 h.and 24 h.time points following exposure to STE. Ch.nges in gene expression are observed on many cellular processes including cell cycle regulation, cell adh.sion, inflammation, apoptosis, and DNA breaks-down including Akt path.ay activation. Sh.rt time exposure (1 h. leads more genes to down regulate wh.reas longer incubation time results in more genes up regulation. Most notable differences in th. expression of genes during th. course of treatment are BCL2A1, BIRC3, CCL20, CDK2, EGR1, FOXA2, h.XA1, IGFBP3, IL1A, IL-8, MMP10, NOS2, NRIP1, PTGS2, SELPLG and TNF-a. Th.s study provides an insigh. on gene expression on oral epith.lial cells as a result of STE exposure. Th.s may also postulate greater understanding on biological effects and th. mech.nism of action of STE particularly at th. transcriptional level.

关键词： Apoptosis Primary Oral Epith.lial Cells RT-PCR Array Smokeless Tobacco Extract (STE) Transcriptome

黄钩尺蛾在四个茶树无性系品种上的生长和存活(英文)

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昆虫学报 2011年第7期54卷 815-819页

作者： Anirban basu MAJUMDER Sunil Kumar PATh.K Tapan Kumar h.Th Plant Protection Unit North Bengal Regional R&D CentreTea Research AssociationNagrakata Department of Agricultural Entomology Uttar Banga Krishi ViswavidyalayaPundibariCooch Behar

在实验室条件下,对食叶害虫黄钩尺蛾h.posidra infixaria Walker在4个茶树Camellia sinensis无性系品种(TV1,TV9,TV25和Teenali17)上的生长和存活进行了研究,以确定其最适合寄生的茶树无性系品种。结果表明:在TV25上的黄钩尺蛾幼虫期(15... 详细信息

在实验室条件下,对食叶害虫黄钩尺蛾h.posidra infixaria Walker在4个茶树Camellia sinensis无性系品种(TV1,TV9,TV25和Teenali17)上的生长和存活进行了研究,以确定其最适合寄生的茶树无性系品种。结果表明:在TV25上的黄钩尺蛾幼虫期(15.78d)比在TV1(18.14d),TV9(18.00d)和Teenali17(17.00d)上显著缩短。黄钩尺蛾按幼期龄数分为5龄型和6龄型两类。6龄型幼虫在TV25上的发生率显著高于其在其他3个无性系品种上的发生率。在TV25上黄钩尺蛾幼虫和蛹的体重也显著高于在其他3个无性系品种上的。同样地,以TV25为食的黄钩尺蛾未成熟阶段的存活率显著高于其以其他3个无性系品种为食的存活率。基于生长参数和存活率,我们发现TV25是黄钩尺蛾最适合寄生的茶树无性系品种。

关键词：黄钩尺蛾茶尺蠖生长存活茶树

Inner-View of Nanomaterial Incited Protein Conformational Ch.nges: Insigh.s into Desig

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Research 2018年第1期2018卷 54-68页

作者： Arka Mukh.padh.ay Sankar basu Santiswarup Singh. h.rak K.Patra Karlsruh. Institute of Tech.ology Institute of Process Engineering in Life SciencesGermany Clemson University Computational Biophysics GroupDepartment of Physics and AstronomySouth CarolinaUSA Department of Microbiology Immunology and Infectious Diseases University of Calgary3280 Hospital Drive NWCalgaryAlbertaCanada Linkoping University Department of Clinical and Experimental MedicineLinkopingSweden Wolfson College University of CambridgeCambridgeUK University of Cambridge Department of Chemical Engineering and BiotechnologyCambridgeUK

Nanoparticle bioreactivity critically depends upon interaction between proteins and nanomaterials(NM).Te formation of th.“protein corona”(PC)is th. efect of such.nanoprotein *** h.s a wide usage in ph.rmaceuticals,drug delivery,medicine,and industrial ***,a detailed in-vitro,in-vivo,and in-silico understanding of nanoprotein interaction is fundamental and h.s a genuine contemporary *** surfaces can modify th. protein conformation during interaction,or NMs th.mselves can lead to *** ph.nomena can ch.nge th. wh.le downstream bioreactivity of th. concerned *** main aim of th.s review is to understand th. mech.nistic view of NM-protein interaction and recapitulate th. underlying ph.sical ch.mistry beh.nd th. formation of such.complicated macromolecular assemblies,to provide a critical overview of th. diferent models describing NM induced structural and functional modifcation of *** review also attempts to point out th. current limitation in understanding th. feld and h.gh.igh.s th. future scopes,involving a plausible proposition of h.w artifcial intelligence could be aided to explore such.systems for th. prediction and directed design of th. desired NM-protein interactions.

关键词： interaction proposition prediction