Intense violet-blue photoluminescence in BaZrO3 powders: A theoretical and experimental investigation of structural order-disorder

Intense violet-blue photoluminescence (PL) emission at room temperature was verified in BaZrO3 (BZO) powders with structural order-disorder. Ab-initio calculations, ultraviolet-visible absorption spectroscopy and PL were performed. Theoretical results showed that the local disorder in the network-formed Zr clusters present an important role in the formation of hole-electron pair. The experimental data and theoretical results are in agreement, indicating that the PL emission in BZO powders can be related to the structural order-disorder degree in the lattice. (C) 2008 Elsevier B.V. All rights reserved.

The Value of Using Interns in the Academic Library

Graduate programs in library and information science programs provide strong theoretical foundations in information systems, library organization, library history, management, collection management to support user needs, reference, information literacy instruction, and specialized information resources. While practical course projects create approximations of professional librarianship, the best hands-on learning experiences include work-based learning through internship placements in actual libraries. Internships immerse students in valuable hands-on practical work in real-workd settings. Internships also learn from the interns' perspectives on library processes and challenges, while also providing library professionals with enriching opportunities to mentor library students and convey knowledge to future generations of professionals.

A multiplicidade de áreas de atuação do orientador educacional e implicações para a sua formação

Trabalho efetuado, através de pesquisa bibliográfica, enfocando a multiplicidade de ábeas de atuação do Orientador Educacional e as implicações dela decorrentes para sua formação e exercício profissional. A expansão do campo de trabalho do Orientador Educacional e as exigências a respeito de sua formação e exercício profissional, numa perspectiva histórica, foram detectadas pela análise de documentos legais e pronunciamentos do Ministério da Educação e Cultura. Sobre Orientação Vocacional, Aconselhamento, in tegração de Orientação e Currículo, Orientação Educacional na Empresa e Orientação e Aconselhamento em grupo - áreas ~ de atuação do Orientador Educacional que vêm recebendo cres centes solicita~ões - foram feitas apenas considerações g~ rais. Nessa exposição, patenteou-se a complexiftade e profundidade do trabalho do Orientador, que requer, alem de qualidades pessoais ~ preparo técnico-científico adequado, a busca de maneiras funcionais que permitam a este profissional atender aos amplos apelos que lhe são feitos. Numa perspectiva teórica, a formação do Orienta dor Educacional se revelou precária e, mais que isso, insu ficiente, clamando por urgente reformulação. Propôs-se, finalmente, que os Orientadores Educacionais, em seu quotidiano, tornem específico seu campo de trabalho, ou seja, no exercício de sua profissão, dediquem- se,em particular, a uma de suas áreas de atuação.

Desafios na gestão de pessoas na área da perícia criminalística: uma abordagem fenomenológica a impactos no desempenho e nos sentimentos

Buscando contribuir teórica e praticamente com a questão da qualidade de vida e melhoria na qualidade de desempenho do perito criminal, esta dissertação procurou apresentar como se desenvolve a atividade pericial e como enfrenta seus inerentes percalços. Durante o estudo foi possível mostrar alguns aspectos significativos da relação da administração de pessoas no setor privado e público. Fez-se aparecer, ainda, o comprometimento do profissional perito criminal na Administração Pública e os sentimentos gerados pelas peculiaridades apresentadas nas atividades por eles desempenhadas. O desvelamento dos sentimentos, durante as entrevistas com abordagem fenomenológica, fez emergir a relevância do humano apaixonado pela carreira e, ao mesmo tempo, preocupado com as condições de trabalho, mas sempre focado nos resultados em favor da sociedade pelo trabalho desenvolvido. A relação interpessoal e intrapessoal favoreceu o autoconhecimento e o conhecimento do outro visando à um estudo acerca do desenvolvimento humano e profissional. A importância da formação humana do profissional atuante em perícia criminalística fez-se presente quando da abordagem acerca da administração de pessoas em um momento em que os avanços tecnológicos e a globalização emergem fortemente na realidade concreta.

Relacionamento com clientes no mercado de serviços : um estudo exploratório na atividade de facilities centers

A satisfação do cliente se apresenta como objeto de inúmeros estudos e pesquisas acadêmicas sobre o comportamento do consumidor muito em função da sua implicação gerencial direta para fidelização, retenção do cliente, estabelecimento de relações duradouras e a consequente sustentabilidade do negócio. Em função da experiência profissional do autor, essa dissertação compara as percepções de satisfação de lojistas de dois shopping centers com os respectivos serviços de facilities dada a decisão gerencial de terceirização ou internalização dessas atividades. Os dados coletados junto aos consumidores organizacionais através de entrevistas presenciais foram analisados com base estatística e os resultados mostram indícios de que essa opção gerencial tem significativa relevância na formação da satisfação do cliente. Além dessa conclusão principal, são oferecidas ainda discussões entre as perspectivas teóricas e os resultados da pesquisa de campo bem como possibilidades de aprofundamento do estudo. Por fim, apresentam-se algumas implicações e contribuições teóricas e gerenciais do presente estudo para acadêmicos e gestores de negócios, respectivamente.

Paradigms in health care and its relationship to the nursing theories: an analytical test

DANTAS, Rodrigo Assis Neves; NÓBREGA, Walkíria Gomes da; MORAIS FILHO, Luiz Alves; MACÊDO, Eurides Araújo Bezerra de ; FONSECA , Patrícia de Cássia Bezerra; ENDERS, Bertha Cruz; MENEZES, Rejane Maria Paiva de; TORRES , Gilson de Vasconcelos. Paradigms in health care and its relationship to the nursing theories: an analytical test . Revista de Enfermagem UFPE on line. v.4,n.2, p.16-24.abr/jun. 2010. Disponível em < http://www.ufpe.br/revistaenfermagem/index.php/revista>.

Natal como destino turístico : um estudo das imagens (re)veladas pela mídia, pelos turistas e suas implicações educacionais e culturais

This thesis is a result of a research on Natal/RN as a tourist destination. We understand that cities are chosen as tourist destinations beyond its cartographic localization, from other dimensions of meanings that, in its set, constitute images. These images are, probably, very different of the images constructed by native and resident populations, who possess relations of identity with the place. The knowledge of the meanings that others attribute to this city as tourist destination, bring us near to the symbolic bonds established by individuals or social groups on the act of their choices, as well as bring us near to the interaction process city-tourists where the expectations are confirmed or not. The images divulgated by the media also participate of the complex formation of the tourist image that is being constructed and available for the different public, in different social contexts. The tourism constitutes a symbolic asset of the modern society, being considered by the studious, as one of the most expressive phenomena of the modernity, for involving each year displacement and the interaction of thousand of people of different cultures in the entire world. All this people s mobilization points to practical social related to personal motivations, to the entailed desired to the idea to travel and to exceed borders. It is already consensus that tourism is a phenomenon of economic growth, generating jobs, income, professional, qualification, bringing improvements for the host cities. Since 1995, in Brazil, the tourism as a sector of the economy, passed to be considered one of the national priorities, and in this perspective, the national politics of the tourism invested in infrastructure of Brazilian cities with high tourist potential, objecting to increase the flows of Brazilian and foreign tourists. Owing to this fact, the country still invests in programs of tourist marketing, mainly divulging the images of the natural beauties of Brazil abroad. And for Brazilians, the campaigns appeal to rescue the feeling to be Brazilian, associating the idea to travel and know its country. Natal city possesses an excellent positioning in the tourist marketing, being predominantly divulgated in national and international level, for its naturalistic singularity, where the images of its natural enchantments as warm water beaches, white dunes, warm weather, constant breeze and an always blue sky are shown as the favorite scene on this city. From what was viewed above that the choice of a tourist destination articulates from a determined imaginary of a place, already constructed or in process of construction, we consider the knowledge of this imaginary a basic learning for the population of the city and especially, for educators, in the formation of professionals in this area and for tourism managers, elaborators of public politics. Based on this estimative, we developed this research that had as a general objective to identify the images that illustrate Natal city as a tourist destination - our objective of study, particularly the meanings and senses attributed by the tourist marketing (hotel s folders) and by the tourists that visited the city during this study. The discussions and reflections that had guided this research had been given from the theoretical link between imaginary and social representation, also considering some interfaces between the fields of communication and symbol. From the studied authors, Baczko (1985) clarifies that the study of social imaginary is directed for the mechanisms and structures of the social life, especially for the intervention accomplishes and efficient of the representations and symbols in the practical collectives, as well as in its direction and orientation . Following this same thought, Moscovici (1978) says that the social representation are produced in communicational and symbolic contexts, and these representations once that already constituted circulate socially as almost tangible entities. Based on this fundament and on the analyze of Barthes (1990), particularly in the approach given to the reading of photographic image, we could observe on hotel s folders that each page evidences senses and meanings of functionality of internal and external spaces, pointing to the way of leisure offered by the keepers of city which is the hotels. About, the leisure that they offer, it is directed to young public, giving meaning to the young myth of personalized leisure tourism on children, young and adults images. The image about security that hotels offer and the singular image of Natal city as a paradise place, provide an idealization of pleasure through the sun, dunes, and beaches and also due to the hospitability of the natives who are assigned as educated . For the tourist that participated on this research, Natal city is tied only by the imaginary of leisure and nature which constitute the emotional link of the relation media-city-tourist. And with such force and fullness of directions the city discloses without tensions and contradictions as a place protected by a mythical and sacred aura. The study also demonstrates us that the potiguar culture remains (almost) forgotten, due to the silenced in this imaginary. In this perspective, we highlight that this culture silence is very close related to the disvalue of education in its general meaning. We defend that the imaginary apprehended constitutes a new reading and a new looking and understanding the tourist reality that comes historically consolidating in this city. In this direction, we glimpse that this study and its future dismemberments can collaborate with the process of rescue the cultural values of the potiguar people, in the way that the meaning of tourist may be redefined, and the tourist image of the city can be also disclosed for its identities particularities of its culture

Experimental and theoretical correlation of very intense visible green photoluminescence in BaZrO3 powders

Very intense visible green photoluminescence (PL) was observed at room temperature in structurally ordered-disordered BaZrO3 powders. Ab initio calculations, ultraviolet-visible absorption spectroscopy, electron paramagnetic resonance, and PL were performed. Theoretical and experimental results showed that local defects in the cubic structure caused by [ZrO5 center dot V-O(z)] complex clusters, where V-O(z) = V-O(x), V-O(center dot), and V-O(center dot center dot), play an important role in the formation of hole-electron pairs, giving rise to a charge gradient in the structure which is responsible for PL emission. (c) 2008 American Institute of Physics.

Intense violet-blue photoluminescence in BaZrO3 powders: A theoretical and experimental investigation of structural order-disorder

Intense violet-blue photoluminescence (PL) emission at room temperature was verified in BaZrO3 (BZO) powders with structural order-disorder. Ab-initio calculations, ultraviolet-visible absorption spectroscopy and PL were performed. Theoretical results showed that the local disorder in the network-formed Zr clusters present an important role in the formation of hole-electron pair. The experimental data and theoretical results are in agreement, indicating that the PL emission in BZO powders can be related to the structural order-disorder degree in the lattice. (C) 2008 Elsevier B.V. All rights reserved.

Brazilian foreign policy in the Cardoso era: The search for autonomy through integration

The Fernando Henrique Cardoso administration attempted to replace a reactive foreign policy agenda dominated by a logic of autonomy through distance with a proactive international agenda guided by a logic of autonomy through integration. In adopting this agenda, the administration maintained that Brazil would be able to confront its problems and secure more control over its future if it actively contributed to elaborating the norms and guidelines of the administration of the global order. Because of structural weaknesses, however, this policy of integration, adherence, and participation was not adequately accompanied by positions entailing practical responsibilities - responsibilities that would have prepared both government and civil society for a higher profile in the post - cold-war era. In the end, the gains achieved during Cardoso's tenure failed to alter Brazil's international standing in any significant way. © 2007 Latin American Perspectives.

Alignment of operations strategy: Exploring the marketing interface

Purpose - The purpose of this paper is to identify factors that can help managers to overcome barriers to alignment of operations strategy at the interface with marketing. Design/methodology/approach - This objective required the application of a procedure based on strategic consensus and a deeper analysis, such that the delimitation of the study in a single case was mandatory. The strategic processes of interfacing involve managerial attributes that are subject to the influence of human aspects and, therefore, the research method used a qualitative approach. The protocol design included the following data sources: interviews, document reviews and researcher observations. The categorisation was made based on the theoretical references, the frequency of observations, common responses and information from documents. Findings - The balance between intra-functional trade-offs, joint research on the competitive context, reflections on the understanding of customer needs and operational performance, and understanding of inter-functional trade-offs were the main factors verified. They effectively support decisions associated with interface processes and promotes the integration of these processes. They can generate inputs that enable managers to achieve an appropriate balance among alternatives in light of various trade-offs. Practical implications - These factors make possible new connections between strategic processes in the context of operations and marketing functions. The formations of these strategies are aligned through a better understanding of both threats and opportunities by means of a joint analysis of the competitive context. The presented findings can be used to develop a clear definition of strategic objectives of operations and a more appropriate treatment of market needs. Originality/value - The findings from the research can be considered as new elements for promoting alignment in the formation process of the operations strategy. Little research to date has examined the operations-marketing strategic interface of companies in the context of strategic consensus. © Emerald Group Publishing Limited.

O ensino da literatura e a formação de professores em cursos de Letras

Pós-graduação em Letras - FCLAS

Análise da área da saúde coletiva nas estruturas curriculares dos cursos de odontologia do Brasil

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Tempo e saberes: a constituição do professor experiente em matemática

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Formação docente & Centro de Ciências: estudo sobre uma experiência de formação continuada de professores de química

Pós-graduação em Educação para a Ciência - FC