259 resultados para Informação quântica


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Information retrieval is a recurrent subject in search of information science. This kind of study aim to improve results in both searches on the Web and in various other digital information environment. In this context, the Iterative Representation model suggested for digital repositories, appears as a differential that changes the paradigm of self-archiving of digital objects, creating a concept of relationship between terms that link the user thought the material deposited in the digital environment. The links effect by the Iterative Representation aided Assisted Folksonomy generate a shaped structure that connects networks, vertically and horizontally, the objects deposited, relying on some kind of structure for representing knowledge of specialty areas and therefore, creating an information network based on knowledge of users. The network of information created, called the network of tags is dynamic and effective a different model of information retrieval and study of digital information repositories.Keywords Digital Repositories; Iterative Representation; Folksonomy; Folksonomy Assisted; Semantic Web; Network Tags.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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The objective of this is study is to point inter-institutional partnerships in Information Science formed through co-authorship network. More specifically, we calculate indicators of centrality degree, betweenness centrality and closeness centrality, and analyze the relationships between the grades attributed by CAPES - Coordination for the Improvement of Higher Education Personnel - to the institutions and the indicators on the network, checking whether there is proximity and similarity between network indicators and CAPES's grades. Our corpus consisted of all articles published in the four journals in the field of Information Science in Brazil, with regular publications, based in SciVerse Scopus, for the 2010- 2012 period. We retrieved 237 articles, 58 co-authored, with 117 participant institutions. We conducted the analysis of relations between institutions with greater grades by CAPES and the network through centrality indicators. It was concluded that these network indicators and CAPES concepts are articulated, harmonizing these two categories of indicators.

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In the capital market the information are used as subsidies for the decision making of investors, among the main highlights are the economic, political, accounting and relating nature to the financial results of companies which have stocks traded at Stock Exchanges. In this perspective, it is essential that the agents involved especially brokerage companies establish management processes that contain a set of criteria for the organization and treatment of information collected in newspapers, news agencies and the companies that trade in stocks. Thus, it is essential to establish rigor in relation to recovery mechanisms of such information, which requires more than technology, because actions are necessary that will propitiate the informational content are made available with consistency, clarity and trustworthiness, so as that users can retrieve them in a timely manner. Furthermore, those processes should provide the efficient use of the information retrieved by users, so that they can use them aiming to subsidize the decisions of sale or purchase shares. Considering that the information systems are responsible for the information dissemination in the framework of capital market, it is necessary to present requisites that contemplate the set organization, treatment, retrieval and use of information. That way, we sought to evidence in this paper these issues, utilizing as a premise the elements proposed by Guimarães (2003) from the perspective of the information environment of a values brokerage companies reflecting through the model used, how these companies realize their work considering the dimensions of the documentary analysis, informational treatment, and the instruments for retrieval and use of information.

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Displays the Information Literacy as a method of training for access, evaluation and use of information, which has become, increasingly, the raw material indispensable for intellectual autonomy. Presents the articulation possible - and necessary - between Information and Cultural Competence in School, with emphasis on their relationship. Search is on School Culture, contexts for insertion of procedures developed by the Information Literacy, considering the dimensions of the organization, interpretation and knowledge production. It points out the advantages to realize the Culture School, through practical philosophical context, to support action planning, establishing, in the educational environment, actions related to the development of Competency Information. We used participation research action in the context of a public school in Campo Grande-MS, the research subjects were students of the 6º and 7º grades and their teachers. Data collection took place through observation and interviews relating the development of competencein Information and teaching practices It is noteworthy that this kind of responsibility if developed without an understanding of school culture, becomes a rambling and disjointed practice whose outcomes are at risk of not being achieved.

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The Information and Communication Technologies (ICT) can be combined with the acquisition of academic knowledge and cultural development of students, as they improve their information literacy, and why not say, also digital. Weaim in this research seek references and present experiences that encourage a new concept of school library with the use of ICT in teaching and learning in individual and collective development of the student community. To complement this study we prioritized the following objectives: to insert the technology into the routine of a school library; identify the informational and technological profile of adolescents; understand the needs and technological resources they use to obtain information in daily life and also analyze the importance the effective participation of the school library in the educational context of the school, through greater interaction between the librarian, teacher and pedagogical coordination seeking a cooperative and informal ICT teaching and learning for along with the students, sharing the search for information and knowledge, in a conscious and responsible way. Chosen as theoretical foundation the cognitive studies of Jean Piaget, witch explains how the stages of assimilation and accommodation of knowledge in cooperative practices work. As a methodology was developed a participatory-action research, to learn the behavioral state of young people and adolescents, based on the model of information search for the everyday life (Everyday Life Information Seeking) – ELIS, developed by Finnish researcher Savoleinen (2006), as well as identify the informational and technological profile of adolescents from two selected approaches in the scientific literature (HUGUES-HASSEL; AGOSTO, 2007; UCL, 2008). Thus, came up the initiative to create a Confraternity of the Library in a collaborative digital environment, providing the participants discussion and learning technologies as well as digital information literacy enhancement.

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This article discusses the access to geographic information and its importance for the public policies formulation, reflecting on the implementation of the Spatial Data Infrastructure. The data view and the maps construction are useful for identifying needs and sponsoring public managers in decision making. The public policies implementation stages are optimized when the quantitative and qualitative information are integrated to the spatial phenomena relations. The improvement in the use of geographic information for decision making will be achieved when spatial data are efficiently generated in spatial data infrastructures.

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The information retrieval process involves subjective, imprecise and vague concepts, such as "information need", "relevance", and the very concept of "information". The main information retrieval models treat these concepts accurately, represented by a single numerical value. The fuzzy logic, while operating with the uncertainty of natural phenomena in a systematic and rigorous manner, represents a promising alternative to solve some problems related to information retrieval. This paper presents the fuzzy logic and some examples of its use in information retrieval systems (IRS).

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At first, this paper presents the epistemological and theoretical bases that support the inclusion of an operational concept for the findability of information in the field of Information Science. In a second moment, it defines the key attributes and recommendations for the findability of information, with a view to their understanding in a practical perspective, from the epistemological and theoretical support presented. From a theoretical, exploratory, bibliographic and documentary study, the results reveal that epistemologically the findability of information fits in Information Science in post-custodial paradigm that focuses on access to information and is significantly influenced by Information and Communication Technologies. The theoretical conclusions of this concept focus on the evolution of the Web and from the perspective of the dimensions of language, where there is as pragmatic trend, as technological development that combines the actions taken by informational and institutional individuals in digital information environments. Given that these actions turn enable or not the findability of information, these individuals can be understood as mediators. Therefore, the concept of infocommunicational mediation is the basis for the findability of information. For its application in digital information environments, were defined attributes and guidelines which should be considered in the context of Information Architecture. The attributes characterizing the concept and guidelines point at practical actions for the design and for evaluation of the findability of information. Epistemological, theoretical and practical concepts addressed underpin the called operative concept in information science and should be further explored in this scientific field.

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Corporate governance can be understood as management mechanisms that through external and internal controls are going to reduce the distance between minority stakeholders and the control power of the company. In that context, the information management, the information mediation and the information dissemination is very necessary, because the establishment of the good communication, quick, clear and voluntary, in order to establish a confidence climate in the relation of the company with the society, creditors, and collaborators especially with investors. In Brazil, the model created by the stock exchange of São Paulo called of new market , brings in his additional conduct rules purpose to them required by the Brazilian legislation and possessed like base the equity in the handling between part, the transparency in the disclosure of information and responsibility in the installment count. This article presents some considerations about the model of information management and accountability based on legal criteria, in additional standards of information disclosure, and the information mediation process relationship the corporate governança in the business environment.

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This study analyzes the interrelations between the models of information literacy (IL), information management (IM) and knowledge management (KM). In order to do so, we, at first, highlight some concepts and definitions related to these terms, then we present some models applied to, so that we know the steps/stages of these recurring models. Finally, we present a comparative study between thestages/phases of models in IL, IM and KM, in order to check whether there are interrelations between the steps/phases of IL and the steps/stages of IM and KM. As a result we show the interrelations between the models, and assert that IL can act in an integrated manner to provide greater effectiveness to the informational processes of IM and KM. The analysis provides the expansion of IL contributions, reachingbeyond the scope of libraries and contributing to the development of this theme in the context of the contemporary society.

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In the contemporary world, the Internet enables the development of a Collaborative Web where the decentralization and sharing of information and knowledge generate new cultural configurations of increasing representation in informational flows. In this environment, collaboration and remix practices are covered by a legislation established for another context, and an imbalance is created between what is provided by the technology and what is established by Copyright. Therefore, it is necessary to address, under the perspective of the third time in Information Science, contemporary issues concerning creation, recreation, use, reuse, sharing and dissemination of intellectual content under the legislation which regulates them. This article seeks to highlight the dilemma that contemporaneity is experiencing and how important is for both society as a whole and specially the professional of Information Science to know the legal conditions for the processes of generating, processing, using, recovering and, especially, re-using information on the Web at a larger scale. The Creative Commons licenses are emerging alternatives that offer individuals options to become not only users but also holders and creators of intellectual content under legal conditions.

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The discussions that underpin the process of bibliographic classification in documentaries systems should be designed with scientific basis and theoretical, rather than only be based on professional practice. The theoretical approaches, however, attention should also be involved in professional practice. From this, the present study seeks to demonstrate through the perception of catalogers professional, the importance of reflections on the activity of Thematic Treatment of Information, especially the bibliographic classification in order to engender the strengthening of the area and improvements in product quality and services resulting from libraries. In this context, was carried out a study in the libraries of two Federal Institutes of Education, Science and Technology (IF’s) located in two different states of southeastern Brazil. Technique was employed introspective data collection Verbal Protocol in Individual mode, having qualitative character.

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This study reports part of a broader research about information behavior of graduate students in Education. The research´s participants were nine masters and doctoral students from a graduate program in Education at a public university. The focus group technique was used to collect the data. The focus group sessions were observed and recorded. The recorded data were transcribed, categorized and then analyzed using the technique of content analysis. The main aspects achieved were: i) Identification’s forms of information resources for research; ii) Internet as source of information; iii) Academic Library’s services and resources use; iv) Training to use of electronic data base; v) Difficulties to perform the search; vi) Advisor’s influence on research development; and vii) Environmental factors that affect information seeking behavior. The main results reveal that the identification of information sources occurs, mainly, through references quoted on studies of the researched area; as well as the advisors’ influence in the information seeking behavior of the participants. The results, also, disclose some environmental aspects, as example, lack of time to search and discomfort caused by the libraries’ environment that influenced negatively the information behavior of the studied group.

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Discusses the concepts occupational knowledge and scientific knowledge, taking into account the existence of the field of Information Science formed by sub-professional and scientific fields. Displays incursions in profession sociology and systems theory of profession, in order to expand the vision of the knowledge base among information professionals.