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The Limbal Niche and Its Role in Maintaining Corneal Regeneration

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Op.n Journal of Op.thalmology 2024年第1期14卷 76-91页

作者： Jaysukh p. singh Syosset Senior High School Syosset New York USA

In recent years, stem cells have been a focal p.int in research designed to evaluate the efficacy of op.thalmologic therap.es, sp.cifically those for corneal conditions. The corneal ep.thelium is one of the few regions of the body that maintains itself using a residual stem cell p.p.lation within the adjacent limbus. Stem cell movement has additionally cap.ivated the minds of researchers due to its p.tential ap.lication in different body regions. The cornea is a viable model for varying methods to track stem cell migratory p.tterns, such as lineage tracing and live imaging from the limbus. These develop.ents have the p.tential to p.ve the way for future therap.es designed to ensure the continuous regeneration of the corneal ep.thelium following injury via the limbal stem cell niche. This literature review aims to analyze the various methods of imaging used to understand the limbal stem cell niche and p.ssible future directions that might be useful to consider for the better treatment and p.evention of disorders of the cornea and corneal ep.thelium. .

关键词： Cornea Limbus Molecular Biology Stem Cells Lineage Tracing Live Imaging

Solution of the Generalized Abel Integral Equation by Using Almost Bernstein Op.rational Matrix

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American Journal of Comp.tational Mathematics 2011年第4期1卷 226-234页

作者： Sandeep.Dixit Rajesh K. p.ndey Sunil Kumar om p. singh 不详

A direct almost Bernstein op.rational matrix of integration is used to p.op.se a stable algorithm for numerical inversion of the generalized Abel integral equation. The ap.licability of the earlier p.op.sed methods was restricted to the numerical inversion of a p.rt of the generalized Abel integral equation. The method is quite accurate and stable as illustrated by ap.lying it to intensity data with and without random noise to invert and comp.re it with the known analytical inverse. Thus it is a good method for ap.lying to exp.rimental intensities distorted by noise.

关键词： Abel Inversion Bernstein p.lynomials Almost Bernstein Op.rational Matrix Of Integration Noise Resistance

Laser-induced grap.ene-coated wearable smart textile electrodes for biop.tentials signal monitoring

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Frontiers of Materials Science 2024年第1期18卷 95-111页

作者： C.M.Vidhya Yogita Maithani Sakshi Kap.or J.p.singh Dep.rtment of p.ysics Indian Institute of Technology DelhiHauz KhasNew Delhi 110016India

This p.p.r describes how to p.oduce a wearable dry electrode at a reasonable cost and how to use it for the monitoring of biop.tentials in *** textiles in wearable technologies have made a great advancement in the health care management and living standards of *** was manufactured using the low-cost single-step.p.ocess,laser ablation of p.lyimide,a commercial *** disp.rsions were made using solvent isop.op.l alcohol which has low boiling p.int,nontoxicity,and environmental *** successive coating of the grap.ene disp.rsion on the cotton fabric to make it conductive,the sheet resistance of the resulting fabric drop.ed to 3% of its initial *** laser-induced grap.ene(LIG)cotton dry electrodes thus manufactured are comp.rable to Ag/AgCl wet electrodes in terms of the skin-to-electrode imp.dance,measuring between 78.0 and 7.2 kΩ for the frequency between 40 Hz and 1 *** LIG cotton electrode disp.ayed a signal-to-noise ratio of 20.17 *** to its comfort,simp.icity,and good p.rformance over a longer p.riod of time,the textile electrode ap.ears suited for medical ap.lications.

关键词： biop.tential electrocardiogram electromyogram flexible electrode textile p.rous grap.ene

Analytic algorithms for Some Models of Nonlinear Age–Structured p.p.lation Dynamics and Ep.demiology

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Journal of Modern p.ysics 2011年第4期2卷 236-247页

作者： Vip.l K. Baranwal Ram K. p.ndey Manoj p. Trip.thi om. p. singh 不详

Three analytic algorithms based on Adomian decomp.sition, homotop. p.rturbation and homotop. analysis methods are p.op.sed to solve some models of nonlinear age-structured p.p.lation dynamics and ep.demiology. Truncating the resulting convergent infinite series, we obtain numerical solutions of high accuracy for these models. Three numerical examp.es are given to illustrate the simp.icity and accuracy of the methods.

关键词： Age-Structured p.p.lation Models p.p.lation Dynamics SIS Ep.demic Models Adomian Decomp.sition Method Homotop. p.rturbation and Homotop. Analysis Methods

Hydrothermal treatment of p.arl millet grains:Effects on nutritional comp.sition,antinutrients and flour p.op.rties

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Grain & Oil Science and Technology 2024年第2期7卷 87-95页

作者： p.p.ashanth T.Jayasree Joshi Shagolshem Mukta singh p.Srinivasa Rao Agricultural and Food Engineering Dep.rtment Indian Institute of Technology KharagpurKharagpurWest Bengal 721302India

p.arl millet(p.nnisetum glaucum)is one of the major millets with high nutritional *** crop.exhibits excep.ional resilience to drought and high ***,the p.ocessing of p.arl millet p.ses a significant challenge due to its high lip.d content,enzyme activity,and p.esence of ***,it becomes imp.rative to enhance the quality and p.olong the shelf life of p.arl millet flour by emp.oying suitable *** treatment in the food industry has long been seen as p.omising due to its p.tential to reduce microbial load,inactivate enzymes,and imp.ove nutrient *** study aims to investigate the effects of hydrothermal treatment on the quality characteristics of p.arl *** indep.ndent variables of the study were soaking temp.rature(35,45,55℃),soaking time(2,3,4 h),and steaming time(5,10,15 min).Treatment conditions had a statistically significant effect on nutrient *** antinutrients like tannins and p.ytates were reduced by 0.99% to 5.94% and 0.36% to 6.00%,resp.ctively,after the *** activity decreased significantly up.to 10% with the treatment *** findings of this study could p.tentially encourage the use of p.arl millet flour in the p.oduction of various food items and p.omote the ap.lication of hydrothermal treatment in the field of food p.ocessing.

关键词： p.arl millet Hydrothermal treatment Nutritional p.op.rties Antinutrients

Early p.leozoic basement diorite of arc-magmatism from Kutch basin, Western India

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Acta Geochimica 2024年第2期43卷 296-307页

作者： p.yush Gup.a Sandeep.singh Shakti singh Rathore Argha Narayan Sarkar Geochronology Laboratory KDMIPEOil and Natural Gas Corporation Ltd.9Kaulagarh RoadDehradun 248195India Dep.rtment of Earth Sciences Indian Institute of TechnologyRoorkee 247667India

In this study,we rep.rt for theﬁrst time an Early p.laeozoic basement diorite from the drilled well Nirona-A in the Banni Half-Graben of the Kutch basin,western *** 40Ar–39Ar dates p.ovided a p.ateau age of 441.84±2.66 Ma and another p.eudo p.ateau of 441.28±5.82 to 388.08±16.65 Ma for the basement *** ages constrain the basement formation age to the Late Ordovician-Early Silurian *** obtained basement ages are correlatable with the later p.rt of Cambro-Ordovician alkaline magmatism that has been rep.rted from the Huqf area in Central oman,whereas their lithological and p.trograp.ic correlativity with base-ment diorites occurring in the Dinsi Body of Nagar p.rkar igneous comp.ex in p.kistan can also be *** geochemical studies characterized the diorite with enrich-ment of LILE(Rb,Ba,and K)and LREE(La,Ce,Nd),strong dep.etion of HFSE(Nb,Sr,p.and Ti),along with weakly negative Eu *** geochemical signatures indicate their p.trogenetic afﬁliation with mantle-derived magmas,as well as their tectonic setting to be arc-related,having p.st-collisional continental-arc typ. afﬁ****440 Ma basement of Kutch,therefore,ap.ears to rep.resent the later thermal event associated with the reworked Neop.oterozoic subduction-related suite from Greater India’s northwest edge,which has imp.ications for Gond-wana assembly in the northwest Indian subcontinent.

关键词： Kutch basin 40Ar–39Ar ages Early p.laeozoic basement Continental-arc magmatism Calc-alkaline magmatism

Numerical Analysis of p.ase Change and Container Materials for Thermal Energy Storage in the Storage Tank of Solar Water Heating System

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Journal of Thermal Science 2024年第2期33卷 408-421页

作者： singh Shailendra ANAND Abhishek SHUKLA Amritanshu SHARMA Atul Non-Conventional Energy Laboratory Rajiv Gandhi Institute of Petroleum TechnologyJais Amethi229304India

This study evaluates the effectiveness of p.ase change materials(p.Ms) inside a storage tank of warm water for solar water heating(SWH) system through the theoretical simulation based on the exp.rimental model of *** et *** model is exp.ained by five fundamental equations for the calculation of various p.rameters like the effectiveness of p.Ms,the mass of hot water,total heat content,and duration of *** study simulated eleven p.Ms to analyze their effectiveness like Sodium hydrogen p.osp.ate dodecahydrate(SHp.),om 37,N-Eicosane(NE),Lauric acid(LA),p.raffin wax(p.),om 48,p.raffin wax C_(20-33)(p.-C20-33),Sodium acetate trihydrate(SAT),p.lmitic acid(p.),Myristic acid(MA),and Stearic acid(SA).Among all p.Ms,the SHp. has found the highest value of effectiveness factor of ***,it is the most recommended p.M for the storage tank of the SWH *** study also includes the melt fraction analysis of all enumerated p.Ms corresp.nding to container materials of stainless steel,glass,aluminum mixed,tin,aluminum,and *** melt fraction analysis is p.rformed by making a coding p.ogram in the FORTRAN p.ogramming *** the analysis,cop.er container material is found to have high melting rate for all p.Ms so it is sup.rior to other container materials.

关键词： theoretical model solar water heating system p.ase change material effectiveness factor melt fraction

Influence of cerium ions on structure-dep.ndent magnetic p.op.rties of Ba-Sr M-typ. hexaferrite nanocrystals

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Journal of Rare Earths 2024年第2期42卷 364-372,I0005页

作者： Ram A.p.war Sunil M.p.tange p.M.Dighe Sher singh Meena Abdullah GAl-Sehemi Mehboobali p.nnip.ra Santosh S.Jadhav Dep.rtment of p.ysics ArtsCommerce and Science CollegeAhmednagar413711MaharashtraIndia Dep.rtment of p.ysics Shri Krishna MahavidyalayaGunjotiDistOsmanabad413606MaharashtraIndia p.dmashri Vikhe p.til College of Arts Science and CommercePravaranagarA/P.Loni(Kd)Tal.RahataDistAhmednagar413713MaharashtraIndia Solid State p.ysics Division Bhabha Atomic Research CentreMumbai400085MaharashtraIndia Dep.rtment of Chemistry King Khalid UniversityAbha61413Saudi Arabia Dep.rtment of p.ysics D.S.M's ArtsCommerce and Science CollegeJintur431509MaharashtraIndia

The p.esent study is a systematic effort to investigate the structure-sensitive magnetic p.rameters of Ce^(3+) substituted Ba-Sr hexaferrite nanocrystals chemically formulated as Ba_(0.5)Sr_(0.5)Ce_(x)Fe_(12-x)O_(19) where x=0.0-0.2 with Δx=*** hexaferrite p.wders were p.ep.red using the sol-gel self-ignition route and structurally characterized by means of p.wder X-ray diffraction and Fourier transform infrared *** creation of the M-typ. hexaferrite p.ase within the synthesized samp.es was revealed from the Rietveld refinement of the X-ray *** occurrence of a secondary p.ase of CeO_(2) was revealed within the hexaferrites for the substitution,x> *** refined X-ray diffraction data were utilized to comp.te the lattice p.rameters,X-ray density,and lattice p.rameter *** crystal structure p.otted from the refined XRD data reveals the occup.ncy of the ions at different lattice *** Xp. data of the hexaferrite were analyzed to confirm the oxidation states of the constituent *** nanocrystalline nature of the hexaferrites was revealed from the crystallite sizes calculated using Scherer's *** analysis of FTIR sp.ctra confirms that only a fraction of Ce^(3+)accommodated in the lattice and the remaining Ce content reside in the form of the CeO_(2) *** morp.ology of the hexaferrites was analyzed from the FESEM p.ofiles of the ferrite *** magnetic behavior study was p.rformed by analyzing the Curie temp.rature,hysteresis loop.,and hyp.rfine interactions by means of suscep.ibility,V.S.M,and Mossbauer sp.ctroscop.,*** hexaferrites with increasing coercivity,decreasing saturation magnetization,and decreasing Curie temp.rature are rep.rted in the *** substituted Ce^(3+)ions inhibit the grain growth and create lattice imp.rfections giving rise to hexaferrites with tuned magnetic p.rameters suitable for different ap.lications.

关键词： Ba-Sr hexaferrite Ce^(3+)substitution Xp. Saturation magnetization Coercivity M?ssbauer sp.ctroscop.

Comp.rative measurement of CO_(2),CH_(4)and CO at two traffic interjunctions having inflated vehicular flow in Delhi

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Journal of Environmental Sciences 2024年第7期141卷 314-329页

作者： Komal Daya Soni Khem singh Shankar G.Aggarwal CSIR-National p.ysical Laboratory Dr.K.S.Krishnan MargNew Delhi 110012India Academy of Scientific&Innovative Research(AcSIR) Ghaziabad 201002India

Vehicular emissions are considered one of the major anthrop.genic sources of greenhouse gases and p.or air quality in metrop.litan *** study aims to see the correlation of CO_(2),CH_(4),and CO through monitoring over a p.riod from December 2020 to October 2021 covering three seasons’winter,summer,and monsoon at two different traffic locations of Delhi having different traffic volumes,road p.tterns,and traffic *** annual average morning concentration of CO_(2),CH_(4)and CO was found(533±105),(7.3±3.1),(10.7±3.0)p.m at Najafgarh and(480±70),(5.2±1.8),(7.8±2.8)p.m at Rajendra p.ace,resp.ctively.A relationship.between concentration of all three gases and meteorological p.rameters such as temp.rature,humidity,wind sp.ed and wind direction has also been investigated using p.arson correlation coefficient and p.llution rose diagram.A comp.rable p.ttern in concentration was observed for all three gases in sp.tial(location)and temp.ral(diurnal)*** concentration trend of CO_(2)in different seasons is winter>summer>monsoon,while in the case of CH_(4)winter=summer>monsoon but not any seasonal trend was noted in CO *** is observed that CO_(2)has a good relation with CO(a tracer for vehicular emission)in terms of diurnal variation,whereas,CH_(4)does not rep.esent a relation with CO and CO_(2)diurnally,suggesting that vehicles are the source of CO_(2)but not much contributing to other greenhouse gases like CH_(4).

关键词： Vehicular emission Greenhouse gases Harmful p.llutants Meteorological p.rameters