Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 344 for “"PEI"”.
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I. M. Pei, William Zeckendorf, and the Architecture of Urban Renewal
… 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. …
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Pei on the prairie : urban renewal in Oklahoma City, 1960-1990
… by internationally famous architect I.M. Pei, along with plans for a new medical center south of the state capitol, and a housing zone to be redeveloped farther to the east of the capitol and downtown. Work began by 1966, and the Pei Plan itself would see its first projects completed in …
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Proyecto de educación sexual, el PEI y la formación del sujeto político
La presente tesis es una propuesta educativa brinda aportes a la dinámica organizacional de las instituciones educativas y a la actitud de los docentes frente al desarrollo integral de los estudiantes como sujetos políticos, a partir de la información científica y formativa sobre la sexualidad; …
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'Quat-Primer' polymers based on b-PEI and their application in composites
… couplers with branched polyethylenimine (b-PEI). Furthermore, depending on the functionality introduced in the polymer, the application of these modified polymers (i) as primers in carbon fibre - epoxy resin composite and (ii) UV curable coatings were also investigated. The primer polymers …
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Evaluación de las competencias multimedia en el marco del procesamiento estratégico de la información: secundaria (pei)
… 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 …
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Eventi precoci nel processo di interazione tra Cellule Staminali Mesenchimali e Biomateriali polimerici (PSS e PEI Multilayers)
… 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 …
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Correlation of HAS2-associated gene duplications with biological aggressiveness of mast cell tumors in Chinese Shar-Pei dogs
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 …
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Elucidation of Design Criteria for siRNA Delivery in Mammalian Cells Using Polyethylenimine
… 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 …
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Articulación de las prácticas educativo - formativas que desarrollan los docentes y estudiantes del preescolar los andes con los postulados del Proyecto Educativo Institucional (PEI)
… docentes y estudiantes con los postulados del PEI del Preescolar los Andes| en ella, se pone en evidencia las concepciones de directivos y docentes sobre PEI, currículo y prácticas educativas formativas, con el fin de contrastarlas con las acciones desarrolladas por cada uno y los sustentos …
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Specific and efficient in vivo delivery of DNA and siRNA by polyethylenimine and its derivatives
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 …
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Using Social Influence To Enhance Post-Experimental Inquiry Success
… 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 …
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Self-Assembled Gold Nanoplexes for Cancer-Targeted siRNA Delivery
… 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 …
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Telechelic Polyetherimides with Functionalized End Groups for Enhancement of Mechanical Strength, Flame Retardancy, and Optical Properties
… 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 …
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Modification and Upcycling of Polyetherimide, Polystyrene, Polyethylene, and Polypropylene
… 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 …
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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
… 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 …
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Effect of uptake pathway on non-viral gene delivery in vitro and in vivo
… 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 …
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Quartz Crystal Microbalance with Dissipation Monitoring Applications in Polymer Thin Films Analysis
… 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. …
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Kationische Copolymere für den rezeptorvermittelten Gentransfer
… 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 …
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Tribological behavior of unfilled and carbon fiber reinforced polyether ether ketone/polyether imide composites
… 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 …
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Design and Fabrication of Polymer/Graphene Laminate Thin Films
… (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 …
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