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Showing 1 to 20 of 327 for “"PEI"”.

  1. I. M. Pei, William Zeckendorf, and the Architecture of Urban Renewal

    Clark, Marci MThe Graduate School and University Center of The City University of New York2021

    … study of the architect-developer team of I. M. Pei and William Zeckendorf and their twelve-year partnership in urban renewal. William Zeckendorf (1905-1976) was the most ambitious real estate developer in the United States in the 1950s, with an outsize personality and larger-than-life plans. …

    cuny-grad Repository record

  2. Evaluación de las competencias multimedia en el marco del procesamiento estratégico de la información: secundaria (pei)

    Castellanos Cano, Silvia2014

    … de Procesamiento Estratégico de la Información (PEI) de Martín del Buey, Camarero, Sáez y Martín (2000). Una vez formulados los ítems exploratorios de las técnicas pertinentes éstos fueron sometidos a dos juicios de expertos consecutivos, que tuvieron como resultado: modificaciones, eliminaciones …

    oviedo Repository record

  3. Eventi precoci nel processo di interazione tra Cellule Staminali Mesenchimali e Biomateriali polimerici (PSS e PEI Multilayers)

    ALBA, ANNAUniversità degli studi di Catania2015

    … Polistirensolfonato (PSS) e Polietilenimmina (PEI). I PEMs PSS-ended sembrano avere le caratteristiche migliori per dirigere l'adesione ed il mantenimento del fenotipo delle hMSCs, mostrando una buona biocompatibilià. Il PEMs PEI-ended induce significative modificazioni morfologiche ed un …

    catania Repository record

  4. Correlation of HAS2-associated gene duplications with biological aggressiveness of mast cell tumors in Chinese Shar-Pei dogs

    Garner, Alana Pavuk, author, Avery, Anne, advisor, Thamm, Douglas, committee member, Basaraba, Randall, committee memberColorado State University. Libraries2013

    Cutaneous mucinosis in Shar-Pei dogs is the result of excessive dermal hyaluronan, a protein associated with angiogenesis and tumor cell motility in multiple human and canine neoplasms. Cutaneous mucinosis in Shar-Pei has been associated with gene duplications upstream of the hyaluronic acid …

    colostate Repository record

  5. Elucidation of Design Criteria for siRNA Delivery in Mammalian Cells Using Polyethylenimine

    Wong, Lily SuzannaUniversity of Illinois at Urbana-Champaign2015

    … in this thesis addresses the issue of how PEI concentration affects siRNA delivery efficiency. It also examines how PEI derivatives affect the three primary in vitro barriers: (1) cellular uptake, (2) endosomal escape, and (3) unpackaging of PEI/siRNA polyplexes. Chapter 2 will demonstrate …

    uiuc Repository record

  6. Specific and efficient in vivo delivery of DNA and siRNA by polyethylenimine and its derivatives

    Fortune, Jennifer AMassachusetts Institute of Technology2010

    Linear polyethylenimine (PEI) is the "gold standard" of polycationic gene delivery vectors. However, little focus has been placed on enhancing or understanding the specificity of PEImediated gene delivery. Herein we evaluated the effect of chemical modification on the specificity of PEI-mediated …

    mit Repository record

  7. Uma contribuição a análise das decisões de investimento privado sob a ótica do Ponto de Equilíbrio do Investimento - PEI- considerando o valor do dinheiro no tempo

    Souza, Mary Katherine Araujo deUniversidade Federal de Pernambuco2006

    … como Ponto de Equilíbrio do Investimento (PEI). Este modelo difere do payback period e do payback descontado por encontrar o tempo mínimo de recuperação do capital investido considerando o valor do dinheiro no tempo e, também, os fluxos de caixa que ocorrem após o ponto mínimo, numa …

    brazil-ufpe Repository record

  8. Using Social Influence To Enhance Post-Experimental Inquiry Success

    Clark, Travis Daryl

    … the efficacy of Post-experimental Inquiry (PEI) questions. Experiments involving deception assume participant naiveté to the study protocol. The present study implemented a PEI to assess the influence of an ethnic prime on stereotyped attitudes in order to assess PEI accuracy. A confederate …

    nodak Repository record

  9. Self-Assembled Gold Nanoplexes for Cancer-Targeted siRNA Delivery

    Shi, Yongliang2014

    … authors have constructed three Au nanoplexes: AuPEI/RNA/PEI, AuPEI/RNA/PEI-mPEG, and AuPEI/NA/PEI-PEG-FA. All the nanoplexes are characterized by UV-vis spectrometry, DLS, and zeta potential. The surface density of the first layer PEI and second layer RNA were also determined. Moreover, the Au …

    usm Repository record

  10. Telechelic Polyetherimides with Functionalized End Groups for Enhancement of Mechanical Strength, Flame Retardancy, and Optical Properties

    Cao, KeVirginia Tech2018

    … that affect the properties of polyetherimide (PEI) and improving the properties. As a high-performance thermoplastic resin, the first challenge in PEI application is its high processing temperature and viscosity. Therefore, two supramolecular strategies were applied to not only solve the …

    vt Repository record

  11. Modification and Upcycling of Polyetherimide, Polystyrene, Polyethylene, and Polypropylene

    Xu, ZhenVirginia Tech2022

    … enhancing the property of polyetherimide (PEI) is first discussed, and two methods are introduced. Later, a new recycling strategy, the degradation-upcycling (Deg-Up) strategy, is presented. The potential of Deg-Up is evaluated on three plastics: polystyrene (PS), polyethylene (PE), and …

    vt Repository record

  12. Effect of uptake pathway on non-viral gene delivery in vitro and in vivo

    Shum, WingUniversity of Illinois at Urbana-Champaign2013

    … is important to in vitro polyethylenimine (PEI)- and polyamidoamine (PAMAM)-mediated gene delivery in HeLa cells through the use of small molecule drugs and small-interfering RNA [1-2]. The goal of this thesis is to further elucidate the effects of cellular uptake mechanism on non-viral gene …

    uiuc Repository record

  13. Quartz Crystal Microbalance with Dissipation Monitoring Applications in Polymer Thin Films Analysis

    Liu, GehuiVirginia Tech2022

    … with chitin and cellulose. Poly(ether imide) (PEI) has poor solvent resistance towards solvents including chloroform, dimethylformamide (DMF), dichloromethane (DCM), and N-methyl pyrrolidone (NMP). Exposure to these solvents severely affects the thermal and mechanical performances of PEI. …

    vt Repository record

  14. Kationische Copolymere für den rezeptorvermittelten Gentransfer

    Sieverling, NathalieUniversität Potsdam

    … kationischer Polymere wie Poly(ethylenimin) (PEI) hergestellt, charakterisiert und nachfolgend in Transfektionsversuchen an verschiedenen Zelllinien eingesetzt. Sowohl das kationische Ausgangspolymer PEI als auch das Pfropfcopolymer PEI-g-PEO (PEO-Seitenketten zur Erhöhung der …

    potsdam-diss Repository record

  15. Tribological behavior of unfilled and carbon fiber reinforced polyether ether ketone/polyether imide composites

    Yoo, Jong HyunVirginia Tech1991

    … ether ketone) (PEEK) and Poly(ether imide) (PEI), PEEK/PEI blends with the weight compositions of 50/50 %, 70/30 %, and 85/15 %, with and without short carbon fibers were measured in a pin(52100 steel ball)-on-disk(polymer blend) configuration under dry friction. 50/50, 70/30, and 85/15 …

    vt Repository record

  16. Design and Fabrication of Polymer/Graphene Laminate Thin Films

    Croft, Zacary LaneVirginia Tech2024

    … (SLG) has been coupled with polyetherimide (PEI) to produce thin film audio speakers with significantly enhanced energy efficiency compared to traditional speaker designs. However, the poor design and fabrication of PGLs may degrade the interfacial interactions of polymers with graphene and …

    vt Repository record

  17. Regulated release of a novel non-viral gene delivery vector from electrospun coaxial fiber mesh scaffolds

    Saraf, AnitaRice University2010

    … available cationic polymer, poly(ethylenimine), PEI, was chemically conjugated to a ubiquitous glycosaminoglycan, hyaluronic acid (HA). The novel polymer, PEI-HA, had significantly reduced toxicity and improved transfection efficiency with multipotent human mesenchymal stem cells. This …

    rice Repository record

  18. Plastic Waste-Derived CO2 Sorbents and Methods for Enhanced Selectivity and Stability

    Savas, Paul ERice University2024

    … an amine-containing polymer, polyethylenimine (PEI), was added to the carbon sorbent in Chapter 4. To do this, we first modulated the pore structure of the sorbent to become more mesoporous through a liquid-salt templating mechanism. More mesoporosity allowed better accommodation of PEI into the …

    rice Repository record

  19. The effects of PVP(FE(III)) catalyst and polymer molecular weight on gene delivery via biodegradable crosslinked polyethylenimine

    Shum, Wing T.University of Illinois at Urbana-Champaign2011

    … reported biodegradable polyethylenimines (PEI) that show high transfection efficiency and low toxicity by cross-linking 800 Da PEI with diacrylate cross-linkers using Michael addition. However, the synthesis was difficult to control, inconsistent, and resulted in polymers with a narrow …

    uiuc Repository record

  20. Development of a System of MEA Solutions Activated by Novel Poyamines for Natural Gas Sweetening Mass Transfer in Absorber and Desorber Columns

    Jaafari, Laila IbrahimFaculty of Graduate Studies and Research, University of Regina2020

    … absorption rate. As branched polyethyleneimine (PEI-B) (MW ≈ 800 with almost 16 amino groups) showed a superior performance in adsorption applications for capturing CO2, it was important to test its performance in absorption process. Tetraethylenepentamine (TEPA) is another polyamine (five amino …

    regina Repository record

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