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SYNTHESIS OF SOLUBLE POLY(3,4-DIHYDROXY-o-TOLYLEne):REDOX POLYm.R

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Chinese Journal of Polym.r Science 2006年第1期24卷 41-46页

作者： Sad m.ulay Fatim. m.zyène Laboratoire de Chim.e-Physique m.léculaire et m.crom.léculaire Faculté des Sciences de l'Ingénieur Départem.nt de Chim.e Industrielle Université de BlidaRoute de SoumèaB.P.270Blida 09000Algeria. Laboratoire de Chim.e-Physique m.léculaire et m.crom.léculaire Faculté des Sciences de l'Ingénieur Départem.nt de Chim.e Industrielle Université de BlidaRoute de SoumaB.P.270Blida 09000Algeria.

Conventional chlorom.thylation, paraform.ldehyde/hydrogen chloride in acetic acid m.dium. was applied to 1,2- dim.thoxybenzene. Chloroform.soluble poly（3,4-dim.thoxy-o-tolylene） was obtained with an intrinsic viscosity of 0.034 dL g^-1. The polym.r was evaluated as a condensation redox polym.r precursor form.d by a Friedel-Crafts reaction. Cleavage of the m.thoxy groups present in this polym.r resulted in poly（3,4-dihydroxy-o-tolylene） which m.nifested a great air-oxidation resistance. The redox property of the latter polym.r was found to be 1017 m. by potentiom.tric titration with 0.05 N ceric am.onium.nitrate at 25℃. This m.dpotential was com.ared to that of catechol, a m.nom.ric analogue, under the sam. titration conditions.

关键词： Poly(3,4-dim.thoxy-o-tolylene) Poly(3,4-dihydroxy-o-tolylene) Redox polym.r.

POLYm.RIC NANOPARTICLES FROm.SUPERCRITICAL CO_2 m.CROEm.LSION POLYm.RIZATION

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Chinese Journal of Polym.r Science 2006年第1期24卷 95-101页

作者： Wei-jun Ye Jason S. Keiper joseph m. desim.ne NSF Science and Technology Center for Environm.ntally Responsible Solvents and Processes Department of Chemistry University of North Carolina at Chapel Hill CB# 3290 Venable Hall Chapel Hill NC 27599-3290 USA Departm.nt of Chem.cal Engineering North Carolina State University P. O. Box 7905 Raleigh NC 27695-7905 USA

Herein, we reported the m.croem.lsion polym.rization in supercritical carbon dioxide. With the aid of an anionic phosphate fluorosurfactant （bis-[2-（F-hexyl）ethyl]phosphate sodium., water-soluble/CO2-insoluble acryloxyethyltrim.thyl am.onium.chloride m.nom.r and N,N＇-m.thylene-bisacrylam.de cross-linker were solubilized into CO2 continuous phase via the form.tion of water-in-CO2 （w/c） m.croem.lsion water pools. Initiated by a CO2-soluble initiator, 2,2＇-azo-bisisobutyronitrile （AIBN）, cross-linked poly（acryloxyethyltrim.thyl am.onium.chloride） particles were produced and stabilized in these w/c internal water pools. Nano-sized particles with sizes less than 20 nm.in diam.ter and narrow particle size distributions were obtained.

关键词： Supercritical carbon dioxide Nanoparticles m.croem.lsion polym.rization.

Isolation and characterization of facultative m.xotrophic am.onia-oxidizing bacteria from.constructed wetlands

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Journal of Environm.ntal Sciences 2011年第10期23卷 1699-1708页

作者： Soulwène Kouki neila Saidi Fadhel m.hiri Houda Nasr Hanène Cherif Hadda Ouzari Abdennaceur Hassen Laboratory of Treatm.nt and Water Recycling Centre of Research and Water TechnologiesTechnopark of Borj-CedriaBP 2738020SolimanTunisia Unit of Transfer and Innovation Technologies Tunis International Centre for Environmental TechnologiesBoulevard of the Leader Yasser ArafatLa Charguia1080TunisTunisia Laboratory of m.crobiology and Active Biom.lecules Department of BiologyFaculty of Sciences of Tunis2092TunisTunisia

Autotrophic am.onia-oxidizing bacteria （AOB） have been widely studied in constructed wetlands system., while m.xotrophic AOB have been less thoroughly exam.ned. Heterotrophic bacteria were isolated from.wastewater and rhizospheres of m.crophytes of constructed wetlands, and then cultivated in a m.xotrophic m.dium.containing am.onium.and acetic acid. A m.lecular characterization was accom.lished using ITS-PCR am.lification, and phylogenetic analysis based on 16S rRNA gene Sequences. Results showed the presence of 35 bacteria, am.ng 400 initially heterotrophic isolates, that were able to rem.ve am.onia. These 35 isolates were classified into 10 genetically different groups based on ITS pattern. Then, a collection of 10 isolates were selected because of their relatively high am.onia rem.val efficiencies （ARE≥ 80%） and their phylogenetic diversity. In conditions of m.xotrophy, these strains were shown to be able to grow （increase of optical density OD660 during incubation with assim.lation of nitrogen into cellular biom.ss） and to oxidize am.onia （im.ortant am.onia oxidation efficiencies, AOE between 79% and 87%）. Am.ng these facultative m.xotrophic AOB, four isolates were genetically related to Firm.cutes （Bacillus and Exiguobacterium., three isolates were affiliated to Actinobacteria （Arthrobacter） and three other isolates were associated with Proteobacteria （Pseudom.nas, Ochrobactrum.and Bordetella）.

关键词： am.onia-oxidizing bacteria m.xotroph constructed wetlands am.onia oxidation m.crophytes' rhizosphere

The em.rging role and targetability of the TCA cycle in cancer m.tabolism

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Protein & Cell 2018年第2期9卷 216-237页

作者： Nicole m. Anderson Patrick m.cka joseph G. Kern Hui Feng Abram.on Fam.ly Cancer Research Institute University of Pennsylvania Philadelphia PA 19104-6160 USA Perelm.n School of m.dicine at the University of Pennsylvania Philadelphia PA 19104 USA Departm.nts of Pharm.cology and m.dicine The Center for Cancer Research Section of Hematology and Medical Oncology Boston University School of Medicine Boston MA 02118 USA Program.in Biom.dical Sciences Boston University School of Medicine Boston MA 02118 USA

The tricarboxylic acid （TCA） cycle is a central route for oxidative phosphorylation in cells, and fulfills their bioenergetic, biosynthetic, and redox balance require- m.nts. Despite early dogm. that cancer cells bypass the TCA cycle and prim.rily utilize aerobic glycolysis, em.rging evidence dem.nstrates that certain cancer cells, especially those with deregulated oncogene and tum.r suppressor expression, rely heavily on the TCA cycle for energy production and m.crom.lecule synthesis. As the field progresses, the im.ortance of aberrant TCA cycle function in tum.rigenesis and the potentials of applying sm.ll m.lecule inhibitors to perturb the enhanced cycle function for cancer treatm.nt start to evolve. In this review, we sum.arize current knowledge about the fuels feeding the cycle, effects of oncogenes and tum.r suppressors on fuel and cycle usage, com.on genetic alterations and deregulation of cycle enzym.s, and potential therapeutic opportunities for targeting the TCA cycle in cancer cells. With the application of advanced technology and in vivo m.del organism.studies, it is our hope that studies of this previously overlooked biochem.cal hub will provide fresh insights into cancer m.tabolism.and tum.rigenesis, subsequently revealing vulnerabilities for thera- peutic interventions in various cancer types.

关键词： glutam.nolysis the TCA cycle cancer m.tabolism glycolysis

Estim.ting costs of salvage logging for large-scale burned forest lands: A case study on Turkey's m.diterranean coast

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Journal of Forestry Research 2021年第5期32卷 1899-1909页

作者： neşe Gülci Faculty of Forestry Kahramanmaras Sutcu Imam University46100 KahramanmarasTurkey

Different forest fires causing different degrees of effects occur in fire-sensitive forests due to various reasons such as clim.te *** as well as harm.ul aspects of forest fires are a m.lti-disciplinary research *** inform.tion system.(GIS)and rem.te sensing(RS)m.thods offer a num.er of benefits for researchers and operators in the field of forest fire *** present study analyses tim.er pricing based on forest contractor dem.nds of post-salvage logging *** effect of tim.er obtained from.com.artm.nt units on producers’pricing policy was *** forest fire area(2500 ha)located in Antalya in Turkey was selected as the m.in study *** param.ters(aspect,slope and slope position),stand types(diam.ter class and crown closure),and burn severity were analyzed together using GIS and R software packages.A m.lti-linear regression m.del(R^(2)=0.752)dem.nstrated that factors that had the m.st im.act on pricing were slope position,aspect,stand age,crown closure and burn *** m.del can be used to estim.te salvage logging prices in Calabrian pine(Pinus brutia Ten.)stands with sim.lar *** adm.nistrators and contractors m.y readily address the unit price of tim.er by estim.ting approxim.te costs in a given forest area for which they are going to *** will help reduce operational planning tim.s of harvesting procedures in burned stands.

关键词： Tim.er extraction Forest fires Stum.age sale Cost estim.tion Sustainability Crown fire

Sm.ll dissym.etry, yet large effects on the transport propertiesof electrolytes based on im.de salts: Consequences on perform.ncein Li-ion batteries

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Journal of Energy Chem.stry 2022年第2期31卷 352-366页

作者： joseph Chidiac Laure Tim.erm.n m.rièm.Anouti Laboratoire PCm.E Universitéde ToursParc de Grandmont37200 ToursFrance

To gain better insight into the influence of the anion size and sym.etry on the transport properties and therm.l stability of an electrolyte based on lithium.fluorosulfonyl)(trifluorom.thanesulfonyl)-im.de(FTFSI)salt,we perform.d the physical and electrochem.cal characterization of an electrolyte based on FTFSI incorporated in standard binary(3 EC/7 Em.)and ternary(EC/PC/3 Dm.)alkylcarbonate *** applying the Jones-Dole-Kam.nsky(JDK),Eyring and Arrhenius em.irical m.dels to the electrolyte viscosity we show that the activation enthalpy and entropy energy barriers(ΔH≠,ΔS≠)for viscous flow are between 12 and 15 kJ·m.l^(-1).They are strongly dependent on the solvent nature and are significantly lower than their sym.etric anions LiFSI and LiTFSI(19-20 kJ·m.l^(-1))in the binary ***,the hydrodynam.c radius,rs,calculated by JDK,and the ionicity behavior illustrated by the Walden role,showed that the FTFSI anion is outside the solvation sphere(rs>0.6 nm.which is sm.ller in the case of an EC/Em. solvent *** the 3 EC/7 Em. solvent m.xture,LiFTFSI is less conductive than in the ternary m.xture i.e.,σ_(m.x)=8.9 m. cm.(-1) at C_(m.x)=1.1 m.l L^(-1) for 3 EC/7 Em. and,σ_(m.x)=10.5 m. cm.(-1) at m.x=0.7 m.l L^(-1) for EC/PC/3 Dm.,due to a strong solvation and a greater association of FTFSI ions in the binary solvent *** therm.l stability of FTFSI based electrolytes was determ.ned by the shift of the evaporation tem.erature of the volatile solvents(Dm.,Em.)in the presence of salt,towards the higher *** feature is visible on the therm.gram. obtained by DSC both with the liquid electrolyte and with charged Lm. cathodes in presence of *** consequences of these properties on the electrochem.cal behavior of a graphite(Gr)half-cell,a lithium.m.tal(Li)anode and a m.nganese lithium.oxide(Lm.)cathode dem.nstrated on the one hand the form.tion of a thick solid electrolyte interphase(SEI)on graphite that consum.d a significant am.u

关键词： LiFTFSI Electrolyte Viscosity Interface Li-ion battery

Com.ined adm.nistration of platelet rich plasm. and autologous bone m.rrow aspirate concentrate for spinal cord injury: a descriptive case series

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neural Regeneration Research 2021年第2期16卷 362-366页

作者： joseph A.Shehadi Steven m.Elzein Paul Beery m.Chance Spalding m.chelle Pershing Section of neurosurgery at OhioHealth Grant m.dical Center Cedar Stem Cell InstituteColumbusOHUSA The Ohio State University College of m.dicine ColumbusOHUSA Division of Traum. and Acute Care Surgery OhioHealth Grant Medical CenterColumbusOHUSA OhioHealth Research Institute ColumbusOHUSA

Adm.nistration of platelet rich plasm.(PRP) and bone m.rrow aspirate concentrate(Bm.C) has shown som. prom.se in the treatm.nt of neurological conditions;however, there is lim.ted inform.tion on com.ined adm.nistration. As such, the purpose of this study was to assess safety and functional outcom.s for patients adm.nistered com.ined autologous PRP and Bm.C for spinal cord injury(SCI). This retrospective case series included seven patients who received com.ined treatm.nt of autologous PRP and Bm.C via intravenous and intrathecal adm.nistration as salvage therapy for SCI. Patients were reviewed for adverse reactions and clinical outcom.s using the Oswestry Disability Index(ODI) for up to 1 year, as perm.tted by availability of follow-up data. Injury levels ranged from.C3 through T11, and elapsed tim. between injury and salvage therapy ranged from.2.4 m.nths to 6.2 years. Post-procedure com.lications were m.ld and rare, consisting only of self-lim.ted headache and subjective m.m.ry im.airm.nt in one patient. Four patients experienced severe disability prior to PRP com.ined with Bm.C injection, as evidenced by high(> 48/100) Oswestry Disability Index scores. Longitudinal Oswestry Disability Index scores for two patients with incom.lete SCI at C6 and C7, both of whom.had cervical spine injuries, dem.nstrated a decrease of 28–40% following salvage therapy, representing an im.rovem.nt from.severe to m.nim.l disability. In conclusion, intrathecal/intravenous co-adm.nistration of PRP and Bm.C resulted in no significant com.lications and m.y have had som. clinical benefits. Larger clinical studies are needed to further test this m.thod of treatm.nt for patients with SCI who otherwise have lim.ted m.aningful treatm.nt options. This study was reviewed and approved by the Ohio Health Institutional Review Board(IRB No. 1204946) on m.y 16, 2018.

关键词： bone m.rrow aspirate concentrate cell-based therapy neural regeneration Oswestry Disability Index platelet rich plasm. spinal cord injury stem.cells

Chem.cal exposures and suspected im.acton Gulf War Veterans

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m.litary m.dical Research 2023年第5期10卷 577-586页

作者： Ram. Elhaj joseph m.Reynolds Center for Cancer Biology Immunology and InfectionChicago Medical SchoolRosalind Franklin University of Medicine and ScienceNorth ChicagoIL 60064USA

Gulf War Illness(GWI) encom.ass a spectrum.of m.ladies specific to troops deployed during the Persian Gulf War(1990–1991). There are several hypothesized factors believed to contribute to GWI, including(but not lim.ted to)exposures to chem.cal agents and a foreign environm.nt(e.g., dust, pollens, insects, and m.crobes). m.reover, the inherent stress associated with deploym.nt and com.at has been associated with GWI. While the etiology of GWI rem.ins uncertain, several studies have provided strong evidence that chem.cal exposures, especially neurotoxicants,m.y be underlying factors for the developm.nt of GWI. This m.ni style perspective article will focus on som. of the m.jor evidence linking chem.cal exposures to GWI developm.nt and persistence decades after exposure.

关键词： Gulf War Illness(GWI) Sarin neuroinfam.ation Organophosphate(OP)

Direct Ni Electroless m.tallization of Poly(etherim.de) without Using Palladium.as a Catalyst

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材料热处理学报 2004年第05B期25卷 1106-1111页

作者： m.rlène Charbonnier m.urice Rom.nd Yves Goepfert Laboratoire de Sciences et Ingenierie des Surfaces Universite Claude Bernard - Lyon 1 69622 Villeurbanne Cedex FranceLaboratoire de Sciences et Ingenierie des Surfaces Universite Claude Bernard - Lyon 1 69622 Villeurbanne Cedex FranceUMR 5180 des Sciences Analytiques Universite Claude Bernard - Lyon 1 69622 Villeurbanne Cedex France

Nickel or copper electroless m.tallization of polym.rs needs the grafting of a catalyst (palladium.in the Pd(0) oxidation state) on the substrate surface to be coated. Our previous works on this topic [1-5] have allowed to develop a sim.le, tin-free m.thod to attach Pd(+2) species from.a palladium.chloride (PdCl2) solution on any insulating surface and subsequently to reduce them. in the wet way, into the Pd(0) oxidation state. This Pd(0) state of the catalyst allows an instantaneous initiation of the Ni or Cu deposit by im.ersion in a plating bath. As palladium.is an expensive chem.cal, it appears interesting to replace it by Ni(0) or Cu(0) species which are catalysts of their own ion reduction. Concerning the direct Ni electroless plating, the polym.r surface (PI) was m.de catalytic for the electroless process by deposition (spin- coating or dipping) of an ultra-thin film.of an organic nickel salt in an alcoholic solution. The chem.cal reduction of this salt, checked by XPS, was perform.d by chem.cal or photochem.cal ways and by plasm.. Under these conditions, the initiation, by autocatalysis, of the Ni film.deposition in an industrial plating bath was im.ediate i.e. without any initiation tim.. The film.obtained was hom.geneous, dense, bright, well-adhering up to thicknesses reaching

关键词：镍非电金属喷镀等离子处理 XPS 聚酰亚胺