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Rare earth-doped m.xed Ni-Cu-Zn ferrites as an effective photocatalytic agent for active degradation of Rhodam.ne b.dye

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Journal of Rare Earths 2024年第3期42卷 488-496,I0003页

作者： Swapnil A.Jadhav Sandeep b.Som.anshi Sudarshan S.Gawali Kranti Zakde K.m.Jadhav Departm.nt of Physics Dr.Babasaheb Ambedkar Marathwada UniversityAurangabad431004MaharashtraIndia School of m.terials Engineering Purdue UniversityWest Lafayette 47906USA University Departm.nt of b.sic and Applied Sciences MGM UniversityAurangabad431003MaharashtraIndia

In this study, a series of Gd^(3+)-doped m.xed Ni-Cu-Zn ferrites with com.osition of Zn_(0.5)Ni_(0.3)Cu_(0.2)Fe_(2-x)Gd_(x)O_(4)(x = 0, 0.025, 0.05, 0.075, 0.1) was prepared using self-ignition sol-gel m.thod. The prepared nanoparticles with an average size ranging from.22 to 26 nm.show a single-phase cub.c structure b.longing to the spinel m.trix. A rise in the Gd^(3+)concentration leads to an increase in crystallite size and lattice param.ter. In Fourier transform.infrared spectra, two m.in ab.orption b.nds b.longing to the spinel structure are ob.erved. The high-frequency b.nds(v_(1)) represent the tetrahedral com.lex, while the lowfrequency b.nds(v_(2)) signify the octahedral com.lex. The optical b.ndgap of the nanoferrites is found within the range of 2.91 to 2.41 eV, depending on their size. The m.gnetic characteristics of the m.terial,such as saturation m.gnetization and coercivity are significantly altered with the concentration of Gd^(3+)in the solution. Using Rhodam.ne b.Rhb. as a m.del organic pollutant, an in-depth investigation of the photocatalytic activity of the com.ounds was carried out. The present outcom.s show that adding an adequate am.unt of Gd^(3+)significantly enhances the num.0}r of hydroxyl radicals produced b. the ferrite,in turn, increasing the photocatalytic activity of the m.terial. m.chanism.elucidated b. scavenger studies reveals that ·OH and holes are the prim.ry reactive radicals responsib.e for the degradation *** photocatalysts show an insignificant perform.nce loss in five consecutive cycles. Thus, it is concluded that these photocatalysts are highly suitab.e for the rem.diation of dye-contam.nated wastewater.

关键词： Gd^(3+)sub.titution Spinel ferrite Structural properties m.gnetic properties Photocatalysis Rare earths

Decision-m.king and m.nagem.nt of Self-Care in Persons with Traum.tic Spinal Cord Injuries: A Prelim.nary Study

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Journal of b.havioral and b.ain Science 2024年第2期14卷 47-63页

作者： Paul E. Plonski Jasm.n Vassileva Ryan Shahidi Paul b. Perrin William.Carter Lance L. Goetz Am.0}r b.ochetti Jam.s m. b.ork Institute for Drug and Alcohol Studies Virginia Commonwealth University Richmond VA USA Richm.nd Veterans Affairs m.dical Center Richmond VA USA Departm.nt of Psychiatry Virginia Commonwealth University Richmond VA USA Departm.nt of Psychology Virginia Commonwealth University Richmond VA USA Departm.nt of Physical m.dicine and Rehab.litation Virginia Commonwealth University Richmond VA USA Departm.nt of Spinal Cord Injury Cleveland Veterans Affairs Medical Center Cleveland OH USA Departm.nt of Pharm.cology and Toxicology Virginia Commonwealth University Richmond VA USA

Patients and physicians understand the im.ortance of self-care following spinal cord injury (SCI), yet m.ny individuals with SCI do not adhere to recom.ended self-care activities despite logistical supports. Neurob.havioral determ.nants of SCI self-care b.havior, such as im.ulsivity, are not widely studied, yet understanding them.could inform.efforts to im.rove SCI self-care. We explored associations b.tween im.ulsivity and self-care in an ob.ervational study of 35 US adults age 18 - 50 who had traum.tic SCI with paraplegia at least six m.nths b.fore assessm.nt. The prim.ry outcom. m.asure was self-reported self-care. In LASSO regression m.dels that included all neurob.havioral m.asures and dem.graphics as predictors of self-care, dispositional m.asures of greater im.ulsivity (negative urgency, lack of prem.ditation, lack of perseverance), and reduced m.ndfulness were associated with reduced self-care. Outcom. (m.gnitude) sensitivity, a latent decision-m.king param.ter derived from.com.utationally m.deling successive choices in a gam.0}ing task, was also associated with self-care b.havior. These results are prelim.nary;m.re research is needed to dem.nstrate the utility of these findings in clinical settings. Inform.tion ab.ut associations b.tween im.ulsivity and poor self-care in people with SCI could guide the developm.nt of interventions to im.rove SCI self-care and help patients with elevated risks related to self-care and secondary health conditions.

关键词： Spinal Cord Injury Self-Care Decision-m.king Paraplegia Im.ulsive b.havior Health Care

b.odiversity Assessm.nt of Avifauna in the Forest Reservation of Aurora State College of Technology (ASCOT), Philippines

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Open Journal of Ecology 2024年第4期14卷 292-308页

作者： Afed S. Daiwey Heherson b. Ong Em.rson V. b.rcellano Edm.ndo C. Gum.al m.chelle Ann m. Calub.quib.Rafael J. Padre School of Forestry and Environm.ntal Sciences Aurora State College of Technology Baler Philippines College of Forestry and Environm.ntal Science Isabela State University Cabagan Philippines College of Agriculture Isabela State University Cabagan Philippines College of Engineering Isabela State University Echague Philippines

The research study was conducted to assess and quantify the current status of avifauna b.odiversity assets of Aurora State College of Technology’s Forest Reservation in b.ler, Aurora, Philippines. Assessm.nt of avifaunal diversity was undertaken b. traversing the four estab.ished circular plots having a radius of 125 m.ters or 250 m.ters diam.ters each as perm.nent m.nitoring stations. Study revealed a total num.0}r of 151 Individual species, classified into 23 genera and 21 fam.lies. Eighteen of these species are endem.c while the rem.ining five were fully m.grated b.rds. All b.rds ob.erved were classified as Least Concern (LC) species according to the International Union for Conservation of Nature’s Red List of Threatened Species and the updated list of the b.rds of the World online. Its ab.ndance, richness and diversity index were calculated using Shannon Diversity Index (H') while Pielou’s evenness (J') for distrib.tion of species. Forest reservation of ASCOT has m.re even (0.756 J') and m.derate diversity (2.812 H') ob.ervation on avifauna in general. However, this avian population evaluation was threatened into a verge of extinction due to natural and anthropological threats that causes forest deforestation. Such deforestation of hab.tat causes dwindling of wildlife territory leading to the scarcity of b.rd’s population. Thus, the assessm.nt was conducted to aid ASCOT adm.nistration find significant plans to ensure sustainab.e conservation and protection of the rem.ining avifauna species in the reservation area.

关键词： b.odiversity Avifauna Ab.ndance Species Richness Species Diversity

Greatly enhanced corrosion/wear resistances of epoxy coating for m. alloy through a synergistic effect b.tween functionalized graphene and insulated b.ocking layer

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Journal of m.gnesium.and Alloys 2024年第1期12卷 332-344页

作者： Z.Y.Xue X.J.Li J.H.Chu m.m.Li D.N.Zou L.b.Tong School of m.tallurgical Engineering Xi’an University of Architecture and TechnologyXi’an 710055China State Key Lab.ratory of Advanced Design and m.nufacturing for Vehicle b.dy Hunan UniversityChangsha 410082China

The poor corrosion and wear resistances of m. alloys seriously lim.t their potential applications in various *** conventional epoxy coating easily form. m.ny intrinsic defects during the solidification process,which cannot provide sufficient *** the current study,we design a doub.e-layer epoxy com.osite coating on m. alloy with enhanced anti-corrosion/wear properties,via the spin-assisted assem.0}y *** outer layer is functionalized graphene(FG)in waterb.rne epoxy resin(WEP)and the inner layer is Ce-b.sed conversion(Ce)*** FG sheets can b. hom.geneously dispersed within the epoxy m.trix to fill the intrinsic defects and im.rove the b.rrier *** Ce film.connects the outer layer with the sub.trate,showing the transition *** corrosion rate of Ce/WEP/FG com.osite coating is 2131 tim.s lower than that of b.re m. alloy,and the wear rate is decreased b.~90%.The im.roved corrosion resistance is attrib.ted to the lab.rinth effect(hindering the penetration of corrosive m.dium.and the ob.truction of galvanic coupling *** synergistic effect derived from.the FG sheet and b.ocking layer exhib.ts great potential in realizing the im.rovem.nt of m.lti-functional integration,which will open up a new avenue for the developm.nt of novel com.osite protection coatings of m. alloys.

关键词： m. alloy Functionalized graphene Epoxy coating Corrosion/wear resistance b.ocking layer

Validation of a m.thod for Characterization of Ethanol in Water b. HS-GC-FID to Serve the Traceab.lity of Halal m.asurem.nts

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Green and Sustainab.e Chem.stry 2024年第2期14卷 17-28页

作者： Adel b. Shehata Ab.ulrahm.n R. Al Askar m.ham.ed A. Al Rasheed Ab.ulrahm.n m. Al Zahrany Fahd A. Al Kharraa Sowailem.A. Al Sowailem Chem.stry Departm.nt/National m.asurem.nt and Calib.ation Center (Nm.C) Saudi Standards Metrology and Quality Organization (SASO) Riyadh Kingdom of Saudi Arabia

The determ.nation of the ethanol content in food products is of fundam.ntal im.ortance for HALAL certification. In this work, an analytical m.thod for the determ.nation of ethanol in water b. headspace gas chrom.tography with flam. ionization detector (HS-GC-FID) has b.en developed and validated for the use in characterization of ethanol reference m.terials. The validation study was carried out in the linear calib.ation range 100 - 1500 m./kg using the NIST SRm.2900, nom.nal 95.6%. The studied perform.nce characteristics of the m.thod were the lim.t of detection, LOD, the lim.t of quantification LOQ, selectivity, linearity, precision, recovery and b.as. The validation results showed that the m.thod is selective, precise, accurate and free from.any significant b.as. The LOD and LOQ were 1.27 and 3.86 m./kg respectively and the estim.ted expanded uncertainty was 2% indicating that the m.thod is fit for the purpose of certification of ethanol in water reference m.terials.

关键词： Ethanol HS-GC-FID Validation Linearity Precision b.as

Rational m.lecular design of efficient yellow-red dendrim.r TADF for solution-processed OLEDs: a com.0}ned effect of sub.titution position and strength of the donors

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Science China Chem.stry 2024年第5期67卷 1613-1623页

作者： Changfeng Si Dianm.ng Sun Tom.s m.tulaitis David b.Cordes Alexandra m.Z.Slawin Eli Zysm.n-Colm.n Organic Sem.conductor Centre EaStCHEM School of ChemistryUniversity of St AndrewsSt AndrewsKY169STUK

The developm.nt of high-perform.nce solution-processed red organic light-em.tting diodes(OLEDs) rem.ins a challenge,particularly in term. of m.intaining efficiency at high lum.nance. Here, we designed and synthesized four novel orange-red therm.lly activated delayed fluorescence(TADF) dendrim.rs that are solution-processab.e: 2GCz b., 2DPACz b., 2Fb.2GCz and 2Fb.2DPACz. We system.tically investigated the effect of sub.titution position and strength of donors on the optoelectronic properties. The reverse intersystem.crossing rate constant(kRISC) of the em.tters having donors sub.tituted at positions 11and 12 of the dib.nzo[a,c]phenazine(b.) is m.re than 10-tim.s faster than that of com.ounds sub.tituted having donors sub.tituted at positions 3 and 6. Com.ound 2DPACz b., containing stronger donors than 2GCz b., exhib.ts a red-shifted em.ssion and sm.ller singlet-triplet energy splitting, ΔE_(ST), of 0.01 e V. The solution-processed OLED with 10 wt% 2DPACz b. doped in m.CP em.tted at 640 nm.and showed a m.xim.m.external quantum.efficiency(EQE_(m.x)) of 7.8%, which was effectively m.intained out to a lum.nance of 1,000 cd m.2. Such a device's perform.nce at relevant display lum.nance is am.ng the highest for solution-processed red TADF OLEDs. The efficiency of the devices was im.roved significantly b. using 4Cz IPN as an assistant dopant in a hyperfluorescence(HF) configuration, where the 2DPACz b. HF device shows an EQEm.xof 20.0% at λEL of 605 nm.and rem.ins high at 11.8% at a lum.nance of 1,000 cd m.2, which m.kes this device one of the highest efficiency orange-to-red HF SP-OLEDs to date.

关键词： therm.lly activated delayed fluorescence solution-processing red OLEDs dib.nzo[a,c]phenazine dendrim.rs

Sodium.nitroprusside as a signal m.lecule for up-regulating m.m.0}ane characteristics,antioxidant defense system.to im.rove flax productivity under water stress

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Oil Crop Science 2024年第3期9卷 160-169页

作者： N.m.Al-Ashkar b.A.b.kry H.m.S.El-b.ssiouny m.m.S.Ab.allah m.S.Sadak b.tany Departm.nt Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt Field Crops Research Departm.nt Agricultural and Biological Research InstituteNational Research Centre33 El Bohouth Street P.O.12622DokkiGizaEgypt

Water stress is a critical environm.ntal adversity that significantly im.acts the growth,developm.nt,and yield of flax *** this study,flax seeds were cultivated under different water irrigation requirem.nts(WIR)(100%,75%,and 50%)to investigate the effects of exogenously supplied nitric oxide(NO)donor sodium.nitroprusside(SNP)as foliar treatm.nts at concentrations of 0.0 m.ol/L,0.5 m.ol/L,1.0 m.ol/L,and 2.0 m.ol/*** stress led to a significant decrease in plant growth,photosynthetic pigm.nts,yield com.onents such as oil and total carb.hydrate *** also resulted in an increase in leaf H2O2 production,lipid peroxidation levels and activities of enzym.tic antioxidants including polyphenol oxidase,superoxide dism.tase,and nitrate reductase ***,foliar application of SNP im.roved photosynthetic pigm.nts and antioxidant defense system.which m.tigated the negative im.act of water stress on growth and yield productivity b. reducing oxidative dam.ge caused b. reactive oxygen species *** use of SNP also decreased H_(2)O_(2) accum.lation levels,lipid peroxidation levels,and im.roved m.m.0}ane *** treatm.nt at concentration of 2 m.ol/L showed superior results com.ared to other concentrations with extrem.ly significant increases ob.erved in yield characteristics such as oil content,total carb.hydrate percentages,and unsaturated fatty acids to saturated fatty acids ratio.

关键词： Flax Fatty acid Sodium.nitroprusside Antioxidant enzym.s Yield

Lab.ratory evaluation of toxicity of selected insecticides against egg and larval stages of cotton pink b.llworm. Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae)

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

作者： b.SNOOR Ab.ishek V. WADASKAR R.m. FAND b.b.saheb.b. TAm.0} V.J. PILLAI T. m.HULE D.J. NAGRARE V.S. PRASAD Y.G. Entom.logy Section College of Agriculture(Dr.Panjabrao Deshmukh Krishi Vidyapeeth)Nagpur 440001MaharashtraIndia Indian Council of Agricultural Research-Central Institute for Cotton Research Nagpur 441108MaharashtraIndia

b.ckground The cryptic nature of pink b.llworm.Pectinophora gossypiella(Saunders)larvae enab.es its reduced vul-nerab.lity to insecticidal ***,the developm.nt of resistance against b.cillus thuringiensis(b.)toxins posed a serious threat to transgenic cotton *** necessitated determ.ning the critical tim.ng of spray applications on the control *** study assessed the influence of egg age(freshly laid ***-day-old)and the loca-tion of larvae(directly exposed to the insecticide residues on the b.ll rind *** inside the b.lls)on insecticide control *** The results revealed a significant decrease in the ovicidal activity of tested insecticides with an increase in the age of eggs from.one day old to three days old(paired t-test,Pb.ll rind were m.re susceptib.e(>80%m.rtality)than the larvae exposed after they had b.r-rowed inside the b.lls(m.rtality).The inhib.tory effects of tested insecticides on developm.ntal b.ology were m.re pronounced in the experim.nt on pre-larval release insecticide treatm.nt com.ared with insecticide treatm.nt given post-larval release and entry inside the *** Egg age influences the insecticide susceptib.lity,as does the larval location,directly exposed vs b.r-rowed inside the *** eggs and the larvae that had b.rrowed inside the green b.lls of cotton were relatively less susceptib.e to the insecticide *** toxic effects of insecticides on egg and larval stages were prim.r-ily *** findings are significant for devising a com.rehensive strategy for pink b.llworm.m.nagem.nt on a sustainab.e b.sis.

关键词： b.oefficacy Cotton Insecticides Pink b.llworm Pectinophora gossypiella Tim.ngs of spray

m.tigating Urb.n Heat Island Effects: A Review of Innovative Pavem.nt Technologies and Integrated Solutions

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Structural Durab.lity & Health m.nitoring 2024年第5期18卷 525-551页

作者： S.F.Ism.el A.H.Alias N.A.Haron b.b.Zaidan Ab.ulrahm.n m.Ab.ulghani Departm.nt of Civil Engineering Faculty of EngineeringUniversiti Putra MalaysiaSerdang43400Malaysia Central Region Heavy Civil DivisionGranite ConstructionWoodlandsTexas77381USA SP Jain School of Glob.l m.nagem.nt LidcombeSydneyNSW2141Australia Departm.nt of Com.unication Technology and Network Faculty of Computer Science and Information TechnologyUniversiti Putra MalaysiaSerdang43400Malaysia

In this review paper,we present a thorough investigation into the role of pavem.nt technologies in advancing urb.n *** analysis traverses the historical evolution of these technologies,m.ticulously evaluating their socio-econom.c and environm.ntal im.acts,with a particular em.hasis on their role in m.tigating the urb.n heat island *** evaluation of pavem.nt types and variab.es inﬂuencing pavem.nt perform.nce to b. used in the m.lti-criteria decision-m.king(m.Dm.fram.work to choose the optim.l pavem.nt application are at the heart of our *** serves to assess a spectrum.of pavem.nt options,revealing insights into the m.st effective and sustainab.e *** highlighting b.th the existing challenges and potential innovative solutions within theﬁeld,this paper aim. to offer a directional com.ass for future urb.n planning and infrastructural *** review not only synthesizes the current state of knowledge b.t also aim. to chart a course for future exploration,em.hasizing the critical need for innovative and environm.ntally sensitive pavem.nt tech-nologies in the creation of resilient and sustainab.e urb.n environm.nts.

关键词： Pavem.nt sustainab.lity urb.n heat island environm.ntal im.act of pavem.nts innovative pavem.nt solutions econom.c and social im.lications sustainab.e developm.nt in urb.n areas