O consumo colaborativo como alternativa ao consumo de massa: a percepção do consumidor em bairros de Florianópolis e a relação do consumo colaborativo com valores pessoais.

TCC (graduação) - Universidade Federal de Santa Catarina. Centro Sócio-Econômico. Economia.O tipo de consumo que a sociedade habituou-se ao longo das últimas décadas tem ocasionado problemas que impactam diretamente o cotidiano das pessoas. Alavancado por motivações individuais e questões ambientais, sociais e econômicas, o consumo colaborativo é um fenômeno recente que vem alterando o funcionamento da economia global ao proporcionar aos consumidores uma nova forma de acomodar seus desejos e necessidades de maneira conveniente e sustentável. Associado a isso, as redes de informação energizadas pela Internet têm modificado significativamente o modo e a velocidade com que os agentes econômicos se relacionam. Nesse sentido, o objetivo maior deste trabalho de conclusão do Curso de Ciências Econômicas é identificar a percepção dos consumidores da Grande Florianópolis acerca do consumo colaborativo como alternativa ao modelo de consumo tradicional. O estudo é dividido em três partes principais. Inicialmente recorre-se a pesquisa bibliográfica para contextualizar e conceituar os termos economia compartilhada e consumo colaborativo, suas formas e princípios. Visando conhecer os efeitos desse movimento no Brasil e especificamente em Florianópolis, na sequencia realiza-se pesquisa através de questionários para identificar a propensão do consumidor a participar de práticas de consumo colaborativo em quatro regiões: Lagoa da Conceição, Centro, Trindade e Continente. Considerando que os valores pessoais interferem no comportamento do consumidor, busca-se avaliar qualitativamente de que forma tais valores se relacionam com a disposição dos mesmos a participar do consumo colaborativo. Através do questionário aplicado, ainda que com amostra limitada, observa-se que os consumidores apresentam de modo geral nível satisfatório de propensão a participar do consumo colaborativo, sendo a Lagoa da Conceição a localidade com maior adesão, seguida por Continente, Trindade e Centro. Além disso, a mensuração dos valores pessoais permite observar que os consumidores mais abertos a mudança, menos conservadores e menos apegados materialmente apresentam maior propensão a participar do consumo colaborativo, como é o caso da Lagoa da Conceição. As considerações finais discutem os principais achados e limitações do estudo

Direct Observation of C–H Cyclopalladation at Tertiary Positions Enabled by an Exo-Directing Group

Here we describe the first preparation of tertiary alkyl palladium complexes via C–H activation. Enabled by an exo-type oxime directing group, cyclopalladation occurred smoothly at the bridgehead position. Treatment of the resulting complex with iodine led to C–H iodination at the methine carbon. This study provides important mechanistic information for palladium-catalyzed functionalization of methine C–H bonds

Direct Observation of C–H Cyclopalladation at Tertiary Positions Enabled by an Exo-Directing Group

Here we describe the first preparation of tertiary alkyl palladium complexes via C–H activation. Enabled by an exo-type oxime directing group, cyclopalladation occurred smoothly at the bridgehead position. Treatment of the resulting complex with iodine led to C–H iodination at the methine carbon. This study provides important mechanistic information for palladium-catalyzed functionalization of methine C–H bonds

Catalytic <i>Ortho</i>-Acetoxylation of Masked Benzyl Alcohols via an <i>Exo</i>-Directing Mode

A Pd-catalyzed <i>ortho</i>-acetoxylation of masked benzyl alcohols to synthesize various 2-hydroxyalkylphenol derivatives is reported. The 2,6-dimethoxyl benzaldoxime proved to be an efficient <i>exo</i>-type directing group for arene (<i>sp</i>²) C–H functionalization. Two strategies were demonstrated to remove the directing group through N–O and C–O bond cleavages. A high catalyst turnover (>1000) was obtained to illustrate the practicality of this method

Catalytic Functionalization of Unactivated sp³ C–H Bonds via <i>exo</i>-Directing Groups: Synthesis of Chemically Differentiated 1,2-Diols

We describe a Pd-catalyzed site-selective functionalization of unactivated aliphatic C–H bonds, providing chemically differentiated 1,2-diols from monoalcohol derivatives. The oxime was employed as both a directing group (DG) and an alcohol surrogate for this transformation. As demonstrated in a range of substrates, the C–H bonds β to the oxime group are selectively oxidized. Besides activation of the methyl groups, methylene groups (CH2) in cyclic substrates and methine groups (CH) at bridge-head positions can also be functionalized. In addition, an intriguing oxidative skeleton rearrangement was observed using the menthol-derived substrate. The use of exo-directing groups in C–H activation, as illustrated in this work, would potentially open doors for the discovery of new transformations and new cleavable DGs

Catalytic Functionalization of Unactivated sp³ C–H Bonds via <i>exo</i>-Directing Groups: Synthesis of Chemically Differentiated 1,2-Diols

We describe a Pd-catalyzed site-selective functionalization of unactivated aliphatic C–H bonds, providing chemically differentiated 1,2-diols from monoalcohol derivatives. The oxime was employed as both a directing group (DG) and an alcohol surrogate for this transformation. As demonstrated in a range of substrates, the C–H bonds β to the oxime group are selectively oxidized. Besides activation of the methyl groups, methylene groups (CH₂) in cyclic substrates and methine groups (CH) at bridge-head positions can also be functionalized. In addition, an intriguing oxidative skeleton rearrangement was observed using the menthol-derived substrate. The use of <i>exo</i>-directing groups in C–H activation, as illustrated in this work, would potentially open doors for the discovery of new transformations and new cleavable DGs

sj-doc-6-qjp-10.1177_17470218211047944 – Supplemental material for Semantic feedback processing mechanism of the enactment effect: Evidence from event-related potentials

Supplemental material, sj-doc-6-qjp-10.1177_17470218211047944 for Semantic feedback processing mechanism of the enactment effect: Evidence from event-related potentials by Lijuan Wang, Zhanyu Yu, Zhi Ren and Jialin Ma in Quarterly Journal of Experimental Psychology</p

Catalytic <i>Ortho</i>-Acetoxylation of Masked Benzyl Alcohols via an <i>Exo</i>-Directing Mode

A Pd-catalyzed <i>ortho</i>-acetoxylation of masked benzyl alcohols to synthesize various 2-hydroxyalkylphenol derivatives is reported. The 2,6-dimethoxyl benzaldoxime proved to be an efficient <i>exo</i>-type directing group for arene (<i>sp</i>²) C–H functionalization. Two strategies were demonstrated to remove the directing group through N–O and C–O bond cleavages. A high catalyst turnover (>1000) was obtained to illustrate the practicality of this method

sj-sav-5-qjp-10.1177_17470218211047944 for Semantic feedback processing mechanism of the enactment effect: Evidence from event-related potentials

sj-sav-5-qjp-10.1177_17470218211047944 for Semantic feedback processing mechanism of the enactment effect: Evidence from event-related potentials by Lijuan Wang, Zhanyu Yu, Zhi Ren and Jialin Ma in Quarterly Journal of Experimental Psychology</p

sj-sav-4-qjp-10.1177_17470218211047944 for Semantic feedback processing mechanism of the enactment effect: Evidence from event-related potentials

sj-sav-4-qjp-10.1177_17470218211047944 for Semantic feedback processing mechanism of the enactment effect: Evidence from event-related potentials by Lijuan Wang, Zhanyu Yu, Zhi Ren and Jialin Ma in Quarterly Journal of Experimental Psychology</p