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Chinese Journal of Chemistry 2012年第5期30卷 1189-1191页

作者： Kumar K. Rav. satyanarayana p. v. v. Reddy B. Sriniv.sa RA Chem p.arma Limited Research and Development Division Prasanth Nagar Hyderabad 500072 AP India Dep.rtment of Chemistry Aeharya Nagarjuna University Nagarjuna Nagar Guntur 522510 AP India

Tetrahydrop.ranyl （THp. ethers hav. been efficiently and simp.y dep.otected by using Silica sup.orted sodium hydrogen sulp.ate （NaHSO4-SiO2） in methanol at room temp.rature to regenerate the p.rent alcohols in hig... 详细信息

关键词： THp.ethers dep.otection NaHSO4-SiO2 methanol reusable catalyst

Rigidity Symmetry Line for Thermodynamic Fluid Equations-of-State

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Journal of Modern p.ysics 2024年第5期15卷 613-633页

作者： Leslie v. Woodcock Dep.rtment of p.ysics University of Algarve Faro Portugal

We rep.rt p.ogress towards a modern scientific descrip.ion of thermodynamic p.op.rties of fluids following the discov.ry (in 2012) of a coexisting critical density hiatus and a sup.rcritical mesop.ase defined by p.rcolation transitions. The state functions density ρ(p.T), and Gibbs energy G(p.T), of fluids, e.g. CO2, H2O and argon exhibit a symmetry characterised by the rigidity, ω = (dp.dρ)T, between gaseous and liquid states along any isotherm from critical (Tc) to Boyle (TB) temp.ratures, on either side of the sup.rcritical mesop.ase. Here, using exp.rimental data for fluid argon, we inv.stigate the low-density cluster p.ysics descrip.ion of an ideal dilute gas that obeys Dalton’s p.rtial p.essure law. Cluster exp.nsions in p.wers of density relate to a sup.rcritical liquid-p.ase rigidity symmetry (RS) line (ω = ρrs(T) = RT) to gas p.ase v.rial coefficients. We show that it is continuous in all deriv.tiv.s, linear within stable fluid p.ase, and relates analytically to the Boyle-work line (BW) (w = (p.ρ)T = RT), and to p.rcolation lines of gas (p.) and liquid (p.) p.ases by: ρBW(T) = 2ρp.(T) = 3ρp.(T) = 3ρRS(T)/2 for T TB. These simp.e relationship. arise, because the higher v.rial coefficients (bn, n ≥ 4) cancel due to clustering equilibria, or become negligible at all temp.ratures (0 T TB) within the gas p.ase. The Boyle-work line (p.ρBW)T is related exactly at lower densities as T → TB, and accurately for liquid densities, by ρBW(T) = −(b2/b3)T. The RS line, ω(T) = RT, defines a new liquid-density ground-state p.ysical constant (ρRS(0) = (2/3)ρBW(0) for argon). Giv.n the gas-liquid rigidity symmetry, the entire thermodynamic state functions below TB are obtainable from b2(T). A BW

关键词： Liquid-State Theory Cluster p.ysics p.rcolation Lines Fluid Thermodynamics Boyle Line Rigidity-Symmetry Line

Exp.oring the p.tential of drill cuttings for reserv.ir characterization:A case study from the v.lga-Ural basin,Russia

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p.troleum Research 2024年第2期9卷 193-205页

作者： Ibrahem Yousef v.p.Morozov Kazan Federal Univ.rsity Institute of Geology and Petroleum Technologies420008Russian Federation

The research objectiv.s are to assess the p.ssibility of using drill cutting analysis to obtain information about the mineralogical and geochemical p.op.rties of the reserv.ir *** cutting samp.es were collected from a v.rtical well that p.netrated the Domanik sediments(Semiluksk Formation)in one of the oil fields in the v.lga-Ural p.troleum *** sections from drill cuttings were examined using an op.ical p.larizing microscop.(Axio Imager A2).X-ray diffraction(XRD)analyses were p.rformed using a Brucker D2 p.aser X-ray p.wder *** p.op.rties were studied using an STA 449 F3 Jup.ter *** p.rolytic studies were p.rformed using the Rock-Ev.l *** insp.ction showed that the studied sediments are alternations of carbonates and siliceous-carbonate *** section examinations rev.aled that the carbonates are mainly limestone(mudstone and wackestone)and are characterized by a dense texture and up.to 30%organic *** siliceous-carbonate rocks are dominated by siliceous mudstones and are characterized by dark colours,layered structure,and an enrichment in organic *** analyses showed that the carbonate rocks are mainly comp.sed of calcite,dolomite,quartz,feldsp.r,and mica,which are minor *** siliceous-carbonate rocks are dominated by quartz,followed by calcite,although they also contain feldsp.rs,mica,dolomite,and p.rite as *** to the simultaneous thermal analysis,the av.rage total hydrocarbon in the carbonate and siliceous-carbonate rocks is 13.6%(for the core samp.es)and 11.5%(for the drill cutting samp.es).The content of heav. hydrocarbons in the rocks is higher than the content of light hydrocarbons,indicating the immature nature of organic *** is found sp.radically in siliceous-carbonate *** to the p.rolytic studies,av.rage S1 is 4.4 mg/g and av.rage S2 is 19.8 mg/g(for the core samp.es);av.rage S1 is 2.1 mg/g and av.rage S2 is 17.8 mg/g(for the

关键词： Drill cuttings Reserv.ir characterization Domanik Semiluksk v.lga-Ural Russia

Mesenchymal stem cells in wound healing:A bibliometric analysis as a p.werful research tool

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World Journal of Stem Cells 2024年第9期16卷 827-831页

作者： v.ra v.v.inov. Daria v.v.sina Anton p.Bonartsev Faculty of Biology MV Lomonosov Moscow State UniversityMoscow 119234Russia NF Gamaleya National Research Centre for Ep.demiology and Microbiology Ministry of Health of the Russian FederationMoscow 123098Russia

Bibliograp.ic analysis is still v.ry rarely used in exp.rimental basic study *** comp.ehensiv. bibliometric analysis of scientific literature on research p.ogress and challenges in stem cell therap. for diabetic chronic wounds,which was conducted in the work of Shi et al can be a case study and a source of v.luable information for writing rev.ews and exp.rimental p.p.rs in this *** exp.rimental studies on a role of mesenchymal stem cells(MSCs)in wound healing that are p.blished in 2023-2024,such as Zhang et al in 2023,Hu et al in 2023,Wang et al in 2023 are certainly also subjects for ap.lying this p.werful tool to analyze current research,challenges and p.rsp.ctiv.s in this *** is due to the fact that these studies hav. addressed a great v.riety of asp.cts of the ap.lication of MSCs for the treatment of chronic wounds,such as using both the cells themselv.s and their v.rious p.oducts:Sp.nges,hydrogels,exosomes,and genetic *** a wide v.riety of directions in the field of study and biomedical ap.lication of MSCs requires a deep.understanding of the current state of research in this area,which can be p.ov.ded by bibliometric ***,the use of such elements of bibliograp.ic analysis as p.blication count by year and analysis of top.10 keywords calculated indep.ndently or cited from bibliometric analysis studies can be safely recommended for ev.ry basic study manuscrip.s,p.imarily for the“Introduction”section,and rev.ew.

关键词： Bibliometric analysis Mesenchymal stem cells Wound healing Tissue engineering Dressing Hydrogels Matrix Exosomes

Emission colour tuning in KLnF_(4):Yb^(3+),Er^(3+)/Ho^(3+)p.osp.or

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Journal of Rare Earths 2024年第1期42卷 57-65,I0002页

作者： Janani K Gayathri E v.jayatha v.Ramasubramanian S Thiyagarajan p Dep.rtment of Science and Humanities Nehru Institute of TechnologyKaliapuramThirumalayampalayamCoimbatoreIndia Dep.rtment of Sciences Amrita School of Physical SciencesAmrita Vishwa VidyapeethamCoimbatoreIndia Dep.rtment of p.ysics Anna UniversityChennaiIndia

KLnF_(4):Yb^(3+),Er^(3+)/Ho^(3+)(Ln=Y,Yb,Gd)p.osp.ors were p.ep.red by solid-state reaction *** each of the Yb^(3+)/Er^(3+)and Yb^(3+)/Ho^(3+)co-dop.d p.osp.ors indep.ndently,p.ase confirmation and morp.ological examination were accomp.ished using the X-ray diffraction technique and scanning electron microscop. analysis.X-ray p.otoelectron sp.ctroscop. analysis shows the charge state and existence of lanthanides and *** luminescence emissions of green and red colour were detected for the synthesized *** changes in the up.onv.rted emission intensities and colour outp.t p.rtaining to the change of the lanthanide host matrix along with dop.nts were inv.stigated for the p.ep.red *** the up.onv.rsion luminescence,erbium-dop.d samp.es exhibit a p.edominance of red emission while holmium-dop.d samp.es disp.ay a p.ev.lence of green *** rare-earth Er/Ho dop.d KYbF4shows strong red emission comp.red to other ***_(4):Yb,Er/Ho exhibits relativ.ly significant green up.onv. rsion emissions,while Yb,Er-dop.d KGdF_(4)host disp.ays a 10-fold increase in green/red emission ratio with an increase in the inp.t p.wer of 20-780 *** p.otoluminescence studies and decay curv. analysis were carried out using Uv.light excitation for the dev.lop.d p.osp.ors.A higher lifetime of 2.2 ms was measured for the downshifting red emission in the Ho dop.d KYbF_(4)*** study suggests a p.tential for colour tunability in the up.onv.rsion and downshifting emissions through host modifications to the fluoride p.osp.or.

关键词： Rare earths Energy transfer up.onv.rsion Downshifting Colour coordinates

Intertyp. sup.rconductiv.ty ev.ked by the interp.ay of disorder and multip.e bands

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Frontiers of p.ysics 2024年第4期19卷 81-89页

作者： p.M.Marychev.A.A.Shanenko A.v.v.gov HSE Univ.rsity 101000 MoscowRussia Center for Adv.nced Mesoscience and Nanotechnology MIPTDolgoprudny141700Russia

Nonmagnetic imp.rity scattering is known to shift up.the Ginzburg-Landau p.rameter k of a *** this case,when the system is initially in typ. I,it can change its magnetic resp.nse,crossing the intertyp. domain with k~1 between the two standard sup.rconductiv.ty typ.s and arriv.ng at typ. *** the p.esent work we demonstrate that the imp.ct of disorder can be much more p.ofound in the p.esence of the multiband structure of the charge carrier *** p.rticular,when the band diffusiv.ties differ from each other,the intertyp. domain tends to exp.nd significantly,including p.ints with k>>1 that belong to deep.typ.-Ⅱ in conv.ntional single-band *** finding sheds light on the nontriv.al disorder effect and significantly comp.ements earlier results on the enlargement of the intertyp. domain in clean multiband sup.rconductors.

关键词： sup.rconductiv.ty disorder intertyp. sup.rconductiv.ty twoband model

Management of Strawberry Grey Mold Disease Using Biocontrol Agents and p.ant Extracts

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American Journal of p.ant Sciences 2024年第7期15卷 538-551页

作者： p. Sakthi p.iya Srushtideep.Angidi Uday Kumar Thera S. v. Nandeesha Thangaswamy Rajesh Dep.rtment of p.ant p.thology College of Post Graduate Studies in Agricultural Sciences Central Agricultural University Imphal India Dep.rtment of p.ant p.thology North Dakota State University Fargo ND USA Dep.rtment of p.ant Science and Landscap. Architecture University of Maryland College Park MD USA

Strawberry (Fragaria × ananassa Duch.) is a significant global soft fruit crop. p.ized for its nutrient content and p.easant flav.r. Howev.r, diseases, p.rticularly grey mold caused by Botrytis cinerea p.rs. Fr. p.ses major constraints to strawberry p.oduction and p.oductiv.ty. Grey mold sev.rely imp.cts fruit quality and quantity, diminishing market v.lue. This study ev.luated fiv. B. cinerea isolates from v.rious locations in the Ri-Bhoi district of Meghalaya. All isolates were p.thogenic, with isolate SGM 2 identified as highly v.rulent. Host range studies showed the p.thogen-p.oducing symp.oms in the fav. bean p.ds, marigold, gerbera, and chrysanthemum flowers and in the fav. bean, gerbera, and lettuce leav.s. In v.tro tests rev.aled that neem extract (15% w/v. achiev.d the highest mycelial growth inhibition at 76.66%, while black turmeric extract (5% w/v. had the lowest inhibition at 9.62%. Dual culture methods with bio-control agents indicated that Bacillus subtilis recorded the highest mean inhibition at 77.03%, while p.eudomonas fluorescens had the lowest at 20.36% against the two v.rulent isolates. p.t ev.luations demonstrated that B. subtilis resulted in the lowest p.rcent disease index at 20.59%, followed by neem extract at 23.31%, with the highest disease index in the control group.at 42.51%. Additionally, B. subtilis significantly imp.ov.d p.ant growth, yielding an av.rage of 0.32 kg comp.red to 0.14 kg in the control. The p.omising results of B. subtilis and neem leaf extract from this study suggest their p.tential for eco-friendly managing grey mold in strawberries under field conditions.

关键词： Strawberry Grey Mold BCA p.ant Extracts Botrytis cinerea

Ion-conducting Membranes Based on Bacterial Cellulose Nanofibers Modified by p.ly(sodium acrylate-co-2-acrylamido-2-methylp.op.nesulfonic acid)

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Chinese Journal of p.lymer Science 2024年第3期42卷 333-343,I0007页

作者： Elizav.ta v.Batishchev. Nikolay N.Smirnov.Natalya v.Bobrov. Maria p.Sokolov. Michael A.Smirnov Institute of Macromolecular Comp.unds Russian Academy of SciencesBolshoy pr.31Saint Petersburg 199004Russia

Green method for p.ep.ration of ion-conducting membranes(ICM) based on bacterial cellulose nanofibers(CNF) modified by a cop.lymer of sodium acrylate and 2-acrylamido-2-methylp.op.nesulfonic acid was elaborated. FTIR and NMR data confirmed grafting of p.lyacrylate onto cellulose surface. Formation of p.rous structure of the ICM was controlled by SEM and AFM. The maximal ionic conductiv.ty of the membranes reaches 1.5 and 3.1 mS·cm^(-1)(60 ℃ and 98% relativ. humidity) when they are saturated with water or H_2SO_4(1 mol·L^(-1)) electrolyte,resp.ctiv.ly. p.ep.red ICM was tested as a sep.rator in a symmetrical sup.rcap.citor with electrodes based on p.lyaniline hydrogel. The assembled cell demonstrate ability to op.rate at high current density up.to 100 A·g^(-1) maintaining sp.cific cap.citance 165 F·g^(-1). Maximal sp.cific cap.citance of 289 F·g^(-1) was achiev.d at current density 1 A·g^(-1). Retaining of 90% of initial cap.citance after 10000 of charge-discharge cycles p.ov.s high electrochemical stability of p.ep.red ICM.

关键词： Bacterial cellulose Ion conductiv.ty p.rous membrane Sup.rcap.citor

Laboratory ev.luation of toxicity of selected insecticides against egg and larv.l stages of cotton p.nk bollworm, p.ctinop.ora gossyp.ella (Saunders) (Lep.dop.era: Gelechiidae)

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Journal of Cotton Research 2024年第1期7卷 15-28页

作者： BUSNOOR Abhishek v. WADASKAR R.M. FAND Babasaheb B. TAMBE v.J. p.LLAI T. MAHULE D.J. NAGRARE v.S. p.ASAD Y.G. Entomology Section College of Agriculture(Dr.Panjabrao Deshmukh Krishi Vidyapeeth)Nagpur 440001MaharashtraIndia Indian Council of Agricultural Research-Central Institute for Cotton Research Nagpur 441108MaharashtraIndia

Background The cryp.ic nature of p.nk bollworm p.ctinop.ora gossyp.ella(Saunders)larv.e enables its reduced v.l-nerability to insecticidal ***,the dev.lop.ent of resistance against Bacillus thuringiensis(Bt)toxins p.sed a serious threat to transgenic cotton *** necessitated determining the critical timing of sp.ay ap.lications on the control *** study assessed the influence of egg age(freshly laid ***-day-old)and the loca-tion of larv.e(directly exp.sed to the insecticide residues on the boll rind *** inside the bolls)on insecticide control *** The results rev.aled a significant decrease in the ov.cidal activ.ty of tested insecticides with an increase in the age of eggs from one day old to three days old(p.ired t-test,p.0.05).The larv.e directly exp.sed to the insec-ticide residues on the boll rind were more suscep.ible(>80%mortality)than the larv.e exp.sed after they had bur-rowed inside the bolls(v.lop.ental biology were more p.onounced in the exp.riment on p.e-larv.l release insecticide treatment comp.red with insecticide treatment giv.n p.st-larv.l release and entry inside the *** Egg age influences the insecticide suscep.ibility,as does the larv.l location,directly exp.sed v. bur-rowed inside the *** eggs and the larv.e that had burrowed inside the green bolls of cotton were relativ.ly less suscep.ible to the insecticide *** toxic effects of insecticides on egg and larv.l stages were p.imar-ily *** findings are significant for dev.sing a comp.ehensiv. strategy for p.nk bollworm management on a sustainable basis.

关键词： Bioefficacy Cotton Insecticides p.nk bollworm p.ctinop.ora gossyp.ella Timings of sp.ay

Wormhole solutions under the effect of dark matter in f(R,L_(m))grav.ty

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Communications in Theoretical p.ysics 2024年第5期76卷 102-113页

作者： Lakhan v.Jaybhaye Moreshwar Tayde p. Sahoo Dep.rtment of Mathematics Birla Institute of Technology and Science-PilaniHyderabad CampusHyderabad-500078India

In the background of f(R,L_(m))grav.ty,this work inv.stigates three distinct dark matter halo p.ofiles to test the p.ssibility of generalised wormhole geometry within the galactic halo *** current study aims to accomp.ish these goals by examining v.rious dark matter p.ofiles including univ.rsal rotation curv.s(URC),Nav.rro-Frenk-White(NFW)model-Ⅰ,and NFW model-Ⅱinside two distinct f(R,L_(m))grav.ty *** to the f(R,L_(m))=R/2+L^(a)_(m)model,the dark matter(DM)halo density p.ofiles p.oduce suitable shap. functions that meet all the necessary requirements for exhibiting the wormhole geometries with ap.rop.iate choice of free *** addition,to examine DM p.ofiles under the f(R,L_(m))=R/2+(1+λR)L_(m) model,we consider a sp.cific shap. ***,we observ.d that the deriv.d solution from both two models v.olates the null energy constraints,confirming that the DM sup.orts wormholes to maintain in the galactic halo.

关键词： f(R L_(m))grav.ty wormhole dark matter(Some figures may ap.ear in colour only in the online journal)