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Endosymbiotic pathogen-inhibitory gut bacteria in three Indian Major Carps under polyculture system: A step toward making a probiotics consortium

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Aquaculture and Fisheries 2021年第2期6卷 192-204页

作者： Koushik Ghosh Anjan Mukherjee Dipanjan Dutta sudeshna banerjee Eva Marie Breines Ellinor Hareide Einar Ringø Aquaculture Laboratory Department of ZoologyThe University of BurdwanBurdwan713104India Department of Arctic and Marine Biology Faculty of BioscienceFisheries and EconomicsUiTThe Arctic University of NorwayBreivika9037Norway Norwegian College of Fishery Science Faculty of BiosciencesFisheries and EconomicsUiTThe Arctic University of NorwayTromsø9037Norway

The gastrointestinal(GI)microbiome in fish plays significant roles in health and disease *** investigation was accomplished to enumerate,characterize and identify the potential probiotic bacteria from three Indian Major Carps(IMCs),viz.,rohu(Labeo rohita),catla(Catla catla)and mrigal(Cirrhinus mrigala)using culture dependent ***,105 pathogen-inhibitory bacteria(out of 1216 isolates)were detected from three IMCs by double layer assay.16S rRNA partial gene sequence analyses and BLAST search in the NCBI GenBank unveiled that 94.29%of the pathogen inhibitory bacteria were bacilli(99 strains)and Bacillus licheniformis by far the most common(28%).The primarily selected 27 pathogen-inhibitory strains(cumulative inhibition score≥13)produced extracellular enzymes,while 15 of them produced all the six exo-enzymes studied(amylase,protease,lipase,cellulase,phytase and xylanase).Gut stability of the strains became apparent by their ability to grow in fish mucus and tolerance to diluted ***,14 strains were noticed asγ-hemolytic and susceptible to the commonly used ***,intra-peritoneal injection withγ-hemolytic strains did not induce any pathological signs or mortalities in fish,and thus were considered as *** 14γ-hemolytic isolates were represented by the genus Bacillus(13)and Stenotrophomonas(1),which might form probiotic consortia for prospective use in carp culture.

关键词： Carp Bacillus Stenotrophomonas Antagonism Exoenzymes 16S rRNA

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Upconversion nanoparticles:Recent strategies and mechanism based applications

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Journal of Rare Earths 2022年第9期40卷 1343-1359,I0001页

作者： Neha Dubey sudeshna Chandra Department of Chemistry Sunandan Divatia School of ScienceSVKM's NMIMS(Deemed to-be)UniversityVile Parle(West)Mumbai400056India

Upconversion nanoparticles(UCNPs)doped with lanthanides can convert near-infrared excitation into UV and visible *** of their relatively high emission efficiency,UCNPs are appealing materials for use in a variety of *** are known for low auto-fluorescence,excellent chemical and thermal photo-stability,deep tissue penetration,exceptional biocompatibility,low toxicity,color purity,and ease of surface *** this review,we explain a few recent strategies to boost the efficiency and luminescence of upconversion nanoparticles and minimize quenching by fabricating them as core/shell,nanofibers,or heavily doped *** of UCNPs in drug delivery,Photodynamic therapy(PDT),biosensors,bioimaging,and optogenetics are also discussed along with their mechanism of *** motivation for this review is to understand the working mechanism of UCNPs and their applications in various fields.

关键词： Luminescence Upconversion nanoparticles Optical imaging Mechanism Applications Rare earths

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Study of gravitational sedimentation of flexible, permeable circular and planktonic particle applying the immersed boundary method

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International Journal of Sediment Research 2023年第5期38卷 643-652页

作者： Rekha Panghal sudeshna Ghosh Department of Mathematics Amity School of Applied Sciences Amity University Haryana

The gravitational settling of a flexible, permeable circular and planktonic particle drenched in a fluid which is assumed to be Newtonian and incompressible along with being viscous was studied. A mathematical formulation and numerical simulations of the studied problem were done by applying the Immersed Boundary Method(IBM) in a two-dimensional fluid domain. Parametric studies were done for analyzing the impact of varying flexibilities and permeabilities with reference to settling velocity(terminal velocity) and shape deformation of the particle. The terminal velocity and permeability of the particle are directly proportional. It was observed that for fixed permeability, the terminal velocity increases when increasing the flexibility of the particle.

关键词： Immersed Boundary Method (IBM) Sedimentation Incompressible fluid Flexible particle Permeable particle Settling velocity

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Integrating value-chain approach with participatory multicriteria analysis for sustainable planning of a niche crop in Indian Himalayas

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Journal of Mountain Science 2019年第10期16卷 2417-2434页

作者： sudeshna Maya SEN Arun KANSAL Coca-Cola Department of Regional Water Studies TERI School of Advanced Studies

The value-chain approach(VCA)was used for exploring how a niche crop,namely large cardamom(Amomum subulatum Roxb.),can be developed sustainably to increase incomes and enhance rural livelihoods in the *** cardamom is a high-value,agro-climatically suitable,and non-perishable spice crop grown in the Himalayan *** in Sikkim,the crop is important to the local economy and is sold in both domestic and international markets;however,its production in India has been declining significantly in recent *** VCA and participatory methods of data collection the study helped elicit value chain actors’perspectives on various reasons for the decline as well as potential strategies to improve the cardamom value *** results present the multiple environmental and climatic(*** stress),social(*** participation)and institutional(*** of trust between actors)challenges and corresponding upgrading *** participatory multi-criteria analysis(MCA),the strategies were prioritized based on the overall preferences of multiple *** analysis considered eight criteria and 25 options,or strategies,and found that that marketability and profitability were the most important criteria,and increasing cardamom production,the most important *** discussions along with sensitivity analysis also showed how these options could be implemented and revealed how criteria preferences can change with expert *** combination of VCA and MCA,because it supports participatory decision-making and balances multiple dimensions of sustainable development,can be effectively deployed in planning for agricultural development in the mountains.

关键词： Large Cardamom Participatory decision-making Upgrading strategies Climate change adaptation Sikkim Sustainable Value Chain

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Advances of nanotechnologies for hydraulic fracturing of coal seam gas reservoirs:potential applications and some limitations in Australia

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International Journal of Coal Science & Technology 2022年第2期9卷 1-18页

作者： Hannah Marsden sudeshna Basu Alberto Striolo Melanie MacGregor Department of Chemical Engineering University College LondonLondon WC1E 7JEUK Future Industries Institute University of South AustraliaMawson Lakes BvdMawson LakesSA 5195Australia Department of Earth Sciences University College LondonLondon WC1E 6BSUK School of Chemical Biological and Materials EngineeringUniversity of OklahomaNormanOK 73019USA Flinders Institute for Nanoscale Science&Technology College of Science and EngineeringFlinders UniversityBedford ParkSA 5042Australia

Some of the most promising potential applications of nanotechnology to hydraulic fracturing of coal seam gas(CSG)are reviewed with a focus on Australian CSG *** propitious applications were identifed:(1)Nanoparticle enhanced viscoelastic surfactants(VES)fracturing fuids to prevent fuid loss by up to 30%,made possible by the formation of pseudo-flter cakes and reducing the viscosity of the VES ***,there is no requirement of clay control additives or biocides.(2)Nano-proppants to extend fracture networks and reduce proppant embedment by introducing them prior to the emplacement of larger *** Ash nanoparticles can be particularly efective because of their high sphericity and mechanical strength.(3)Nanoparticle-coated proppants,to mitigate the migration of particle fnes by restricting them close to their source by adsorption,with MgO being the most *** use of nanotechnology in hydraulic fracturing applications is currently hindered due to a discordant regulatory environment compounded by the cost of the nanoparticles themselves,as well as,a lack of feld data to validate the technology under real downhole *** the necessary feld tests are unlikely to be conducted for as long as abundant natural gas is available,exploratory studies could pave the way for future applications.

关键词： Coal bed methane Nanoparticles Fracturing fuids Proppant Natural gas

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High-pressure triggered quantum tunneling tuning through classical percolation in a single nanowire of a binary composite

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Nano Research 2019年第6期12卷 1333-1338页

作者： sudeshna Samanta Mokwon Lee Deok-Soo Kim Jaeyong Kim Lin Wang Center for High Pressure Science & Technology Advanced Research Shanghai 201203China HYU-HPSTAR-CIS High Pressure Research Center Department of PhysicsHanyang UniversitySeoul 04763Republic of Korea Voronoi Diagram Research Center School of Mechanical EngineeringHanyang UniversitySeoul 04763Republic of Korea

In the era of miniaturization,the one-dimensional nanostructures presented numerous possibilities to realize operational nanosensors and devices by tuning their electrical transport *** size reduction,the physical properties of materials become extremely challenging to characterize and understand due to the complex interplay among structures,surface properties,strain effects,distribution of grains,and their internal coupling *** this report,we demonstrate the fabrication of a single metal-carbon composite nanowire inside a diamondanvil-cell and examine the in situ pressure-driven electrical transport *** nanowire manifests a rapid and reversible pressure dependence of the strong nonlinear electrical conductivity with significant zero-bias differential conduction revealing a quantum tunneling dominant carrier transport *** fully rationalize our observations on the basis of a metal-carbon framework in a highly compressed nanowire corroborating a quantum-tunneling boundary,in addition to a classical percolation boundary that exists beyond the percolation *** structural phase progressions were monitored to evidence the pressure-induced shape reconstruction of the metallic grains and modification of their intergrain interactions for successful explanation of the electrical transport *** pronounced sensitivity of electrical conductivity to an external pressure stimulus provides a rationale to design low-dimensional advanced pressure sensing devices.

关键词： single metal-carbon nanowire high pressure electrical transport Voronoi diagram

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The effects of financial liberalization on productivity:Evidence from India’s manufacturing sector

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Journal of Management Science and Engineering 2022年第4期7卷 578-588页

作者： Zhenhui Xu sudeshna Pal College of Business CBX 14Georgia College&State UniversityMilledgevilleGA31061USA Oregon Citizens’Utility Board&Portland State University PortlandOR97201USA

Using a panel of India’s registered manufacturing firms and both economy-wide and firm-level financial data,we investigate the effects of India’s financial liberalization on the productivity of its manufacturing sector in the 1990s and *** dynamic panel analysis shows that the series of financial liberalization policies/measures,at both the macro and micro levels,significantly enhanced the productivity of the manufacturing *** factor productivity increased for all firms,including those owned by the state government,with greater gains for the firms in the private and foreign *** results suggest that policies favoring financial liberalization should be pursued further in order for India to foster higher economic growth.

关键词： Production function Total factor productivity Economic growth Economic reforms Financial liberalization India's manufacturing sector Dynamic panel analysis

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Facile synthesis of asymmetric patchy Janus Ag/Cu particles and study of their antifungal activity

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Frontiers of Materials Science 2020年第1期14卷 24-32页

作者： Sudipta Biswas Satadru Pramanik Suman Mandal sudeshna Sarkar Sujata Chaudhuri Swati De Department of Chemistry University of KalyaniKalyani741235NadiaWBIndia Department of Botany University of KalyaniKalyani741235NadiaWBIndia Department of Chemistry Basirhat CollegeNorth 24 Parganas743412BasirhatWBIndia

Asymmetric patchy Ag/Cu Janus nanoparticles(NPs)were synthesized via a“seed-mediated”*** is the first report of synthesis of nanometer sized metal-based Janus NPs without using complicated *** adsorption of the surfactant onto the seed NPs leads to the formation of Janus type *** the reduction potential of Ag+/Ag0 and Cu2+/Cu0 systems directs the formation of the“patch”.The patchy Janus NPs show significant antifungal activity towards a potent rice pathogen thus offering the prospect of future application in crop protection.

关键词： patchy Janus nanoparticle seed mediated method CTAB antifungal activity

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Treatment of refractory diabetic macular edema with a fluocinolone acetonide implant in vitrectomized and non-vitrectomized eyes

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International Journal of Ophthalmology(English edition) 2018年第12期11卷 1951-1956页

作者： Alberto La Mantia Alan Hawrami Heidi Laviers sudeshna Patra Hadi Zambarakji Eye Treatment Centre Whipps Cross University Hospital Barts Health National Health System Foundation Trust

AIM: To report real-life data on the use of an intravitreal fluocinolone acetonide implant in the treatment of refractory diabetic macular edema(DME) in pars plana vitrectomized(PPV) and non-PPV ***: This was a comparative retrospective observational study of 23 eyes with chronic DME. Bestcorrected visual acuity(BCVA) and central macular thickness(CMT) were recorded at baseline, 1, 4 and 12 mo. Descriptive statistics and non-parametric tests were performed to analyze and compare PPV and non-PPV eyes. RESULTS: Seven PPV and 16 non-PPV eyes were included in the study. Median BCVA in the non-PPV group varied from 0.65 logMAR [Interquartile range(IQR): 0.40] at baseline to 0.42 logMAR(IQR: 0.40) at 12 mo. Median CMT varied from 430 μm(IQR: 131.3) at baseline to 317 μm(IQR: 107.5) at 12 mo. Median BCVA in the PPV group varied from 0.60 logMAR(IQR: 0.62) at baseline to 0.74 logMAR(IQR: 0.34) at 12 mo. Median CMT varied from 483 μm(IQR: 146) at baseline to 397 μm(IQR: 132) at 12 mo. Of 0/7 eyes and 1/16 eyes in the PPV and non-PPV eyes respectively had a baseline visual acuity of 6/12 or better(0.3 logMAR). At last follow up, 1/7 and 5/16 eyes in the PPV and non-PPV group respectively achieved a visual acuity of 6/12 or ***: Visual outcomes are modest following the use of the fluocinolone acetonide implant for chronic DME. The steroid implant is a useful treatment option in the management of refractory DME in vitrectomized and non-vitrectmized eyes.

关键词： diabetic macular edema fluocinolone acetonide intravitreal implant steroid vitrectomy

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Back on Track

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China Today 2023年第3期72卷 40-43页

作者： sudeshna SARKAR 不详

The founder of a financial consultancy weighs in on the impact of China’s re-opening and other hot *** Daniel’s connection with China is undeniably strong and long,stretching all the way to *** he decided to usher in the new year by traveling below the Antarctic circle-where the mean winter temperature varies between-20 and-40 degrees Celsius-the 100-odd passengers on the cruise ship included eight Chinese and he was able to practice his Chinese even on the seventh continent.

关键词： Antarctica stretching traveling

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