967 resultados para Library information networks


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Library & information science abstracts

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Se muestra aquí la pertinencia y utilidad del análisis de co-citas como método de investigación en Bibliotecología y Ciencia de la Información (BCI), mediante un análisis bibliométrico y una revisión del contenido de los principales trabajos publicados sobre este tema. Se analiza el tamaño y evolución de la literatura, la tipología documental y las temáticas de las revistas donde se publican las principales contribuciones. Se mencionan algunos de los métodos y técnicas más utilizados para analizar y visualizar las estructuras de conocimiento de dominios científicos, y se presentan algunos de los modelos de mapas propuestos. Se describen algunas de las aplicaciones y posibles usos de los resultados de estos análisis y, finalmente, se mencionan sus principales ventajas y limitaciones

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In spite of increases in the number of women who are both academically pre- pared and interested in pursuing hospitality management careers, women appear to be leaving the industry at a much higher rate than their male counter- parts. Although women are better represented in lower and middle management than ever before, there has been no corresponding increase in the number of women in top level management positions. The author explores women managers' perceptions of the career-related challenges they confront in hospitality environments and suggests that inadequate access to informal information networks, lack of women mentors, and the impact of unique job characteristics are their most significant concerns.

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Se presentan los resultados de un estudio sobre la formación universitaria que reciben los profesionales de la información sobre la materia gestión de proyectos, tras el análisis de las titulaciones en Información y Documentación a nivel internacional. Para ello, se han utilizado fuentes y directorios sobre la educación internacional en Library and Information Science y se ha creado una base de datos con 106 registros de asignaturas sobre gestión de proyectos incluidas en las titulaciones en Información y Documentación. Como resultado de este proceso, los parámetros de análisis de la investigación han sido la ubicación geográfica, las instituciones de educación superior, las titulaciones académicas y las propias asignaturas sobre gestión de proyectos. Entre las conclusiones más notables, destaca la obligatoriedad de las asignaturas, la enseñanza de las mismas en modo presencial y el caso de las universidades públicas de Estados Unidos, Alemania y Francia.

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This paper discusses some aspects of hunter-gatherer spatial organization in southern South Patagonia, in later times to 10,000 cal yr BP. Various methods of spatial analysis, elaborated with a Geographic Information System (GIS) were applied to the distributional pattern of archaeological sites with radiocarbon dates. The shift in the distributional pattern of chronological information was assessed in conjunction with other lines of evidence within a biogeographic framework. Accordingly, the varying degrees of occupation and integration of coastal and interior spaces in human spatial organization are explained in association with the adaptive strategies hunter-gatherers have used over time. Both are part of the same human response to changes in risk and uncertainty variability in the region in terms of resource availability and environmental dynamics.

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Vom Kaukasus bis in den Pamir und vom Tien-Shan zurück nach Moskau, St. Petersburg und Kiew: Die Geschichte der sowjetischen Bergsteiger und ihrer Formen von Gemeinschaft gewährt zum einen neue Einblicke in die Kultur-, Alltags- und Sozialgeschichte der stalinistischen Sowjetunion und in die Lebenswelten eines Teils der intellektuellen Elite, zum andern in die unterschiedliche Symbolik und Funktion dieser nichtrussischen Bergperipherien für das Selbstverständnis des multinationalen sowjetischen Herrschaftsgebiets. Das Machtzentrum Moskau ist dabei geographisch oft weit entfernt und doch stets präsent – ob in der politischen Symbolik vertikaler Berghierarchien (so am Pik Stalin mitten im Pamir) oder in den Repressionen des 'Grossen Terrors', der auch die Alpinisten traf. Die Studie stellt die Bergsteiger als erfolgreiche Akteure in eigener Sache ins Zentrum und eröffnet so eine Perspektive auf die Ebene zwischen Individuum und Staatsmacht im Stalinismus. Sie zeigt, wie die staatlichen Monopolorganisationen im Bereich des Sports und der Freizeit nicht nur der Kontrolle und Sozialisierung ins Sowjetsystem dienten, sondern auch als Ausgangspunkt für eigene Aktivitäten und manchmal sogar als halböffentliche Nischen des Rückzugs und der Kritik genutzt werden konnten. Der zeitliche Bogen spannt sich von den zwanziger bis zu den ausgehenden fünfziger Jahren des 20. Jahrhunderts. Ein ausführliches Einleitungskapitel bietet ausserdem einen Einblick in die Entstehung des russländischen Bergsteigens vor der Revolution.

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Una de las características de los países de capitalismo dependiente – periférico es la escasa inversión en el campo de la investigación científica. En particular, en el ámbito de las ciencias sociales, esta situación se manifiesta en los muy limitados recursos para el desarrollo de centros de documentación y bibliotecas especializadas como soporte necesario para el desarrollo eficiente y eficaz de la investigación social sobre las realidades nacionales. La Comunidad Universitaria de Unidades de Información Especializadas en Ciencias Sociales es una experiencia exitosa en la educación superior, que provoca romper, a su vez, la lógica de mercantilizar la información, potenciando el uso de los limitados recursos que las universidades públicas costarricenses invierten en el campo de la información para investigación social, por medio de la coordinación de tareas y la integración de procesos técnicos entre distintas unidades de información participantes. Abstract One of the characeristics of peripherial capitalism dependant countries is the scant investment in scientific research particulary, in the field of Social Sciences; this situation is shown in the limited resources available for the development of specialized documentation centers and libraries as necessary support for the efficient and effective development of the social research on the national realities. The University Community of Specialized Information Units on Social Sciences is a successful experience in the university education field; this experience induces a break on the logic of commercialization of information by strengthening the use of the scarce resources that Costarican universities invest in this area. This action is carried out by means of coordinating the tasks and the integration of the technical processes between the different information units involved

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While news stories are an important traditional medium to broadcast and consume news, microblogging has recently emerged as a place where people can dis- cuss, disseminate, collect or report information about news. However, the massive information in the microblogosphere makes it hard for readers to keep up with these real-time updates. This is especially a problem when it comes to breaking news, where people are more eager to know “what is happening”. Therefore, this dis- sertation is intended as an exploratory effort to investigate computational methods to augment human effort when monitoring the development of breaking news on a given topic from a microblog stream by extractively summarizing the updates in a timely manner. More specifically, given an interest in a topic, either entered as a query or presented as an initial news report, a microblog temporal summarization system is proposed to filter microblog posts from a stream with three primary concerns: topical relevance, novelty, and salience. Considering the relatively high arrival rate of microblog streams, a cascade framework consisting of three stages is proposed to progressively reduce quantity of posts. For each step in the cascade, this dissertation studies methods that improve over current baselines. In the relevance filtering stage, query and document expansion techniques are applied to mitigate sparsity and vocabulary mismatch issues. The use of word embedding as a basis for filtering is also explored, using unsupervised and supervised modeling to characterize lexical and semantic similarity. In the novelty filtering stage, several statistical ways of characterizing novelty are investigated and ensemble learning techniques are used to integrate results from these diverse techniques. These results are compared with a baseline clustering approach using both standard and delay-discounted measures. In the salience filtering stage, because of the real-time prediction requirement a method of learning verb phrase usage from past relevant news reports is used in conjunction with some standard measures for characterizing writing quality. Following a Cranfield-like evaluation paradigm, this dissertation includes a se- ries of experiments to evaluate the proposed methods for each step, and for the end- to-end system. New microblog novelty and salience judgments are created, building on existing relevance judgments from the TREC Microblog track. The results point to future research directions at the intersection of social media, computational jour- nalism, information retrieval, automatic summarization, and machine learning.

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This dissertation presents a case study of collaborative research through design with Floracaching, a gamified mobile application for citizen science biodiversity data collection. One contribution of this study is the articulation of collaborative research through design (CRtD), an approach that blends cooperative design approaches with the research through design methodology (RtD). Collaborative research through design is thus defined as an iterative process of cooperative design, where the collaborative vision of an ideal state is embedded in a design. Applying collaborative research through design with Floracaching illustrates how a number of cooperative techniques—especially contextual inquiry, prototyping, and focus groups—may be applied in a research through design setting. Four suggestions for collaborative research through design (recruit from a range of relevant backgrounds; take flexibility as a goal; enable independence and agency; and, choose techniques that support agreement or consensus) are offered to help others who wish to experiment with this new approach. Applying collaborative research through design to Floracaching yielded a new prototype of the application, accompanied by design annotations in the form of framing constructs for designing to support mobile, place-based citizen science activities. The prototype and framing constructs, which may inform other designers of similar citizen science technologies, are a second contribution of this research.

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Alternate Reality Game (ARG) represent a new genre of transmedia practice where players hunt for scattered clues, make sense of disparate information, and solve puzzles to advance an ever-evolving storyline. Players participate in ARGs using multiple communications technologies, ranging from print materials to mobile devices. However, many interaction design challenges must be addressed to weave these everyday communication tools together into an immersive, participatory experience. Transmedia design is not an everyday process. Designers must create and connect story bits across multiple media (video, audio, text) and multiple platforms (phones, computers, physical spaces). Furthermore, they must engage with players of varying skill levels. Few studies to-date have explored the design process of ARGs in learning contexts. Fewer still have focused on challenges involved in designing for youth (13-17 years old). In this study, I explore the process of designing ARGs as vehicles for promoting information literacy and participatory culture for adolescents (13-17 years old). Two ARG design scenarios, distinguished by target learning environment (formal and informal context) and target audience (adolescents), comprise the two cases that I examine. Through my analysis of these two design cases, I articulate several unique challenges faced by designers who create interactive, transmedia stories for – and with – youth. Drawing from these design challenges, I derive a repertoire of design strategies that future designers and researchers may use to create and implement ARGs for teens in learning contexts. In particular, I propose a narrative design framework that allows for the categorization of ARGs as storytelling constructs that lie along a continuum of participation and interaction. The framework can serve as an analytic tool for researchers and a guide for designers. In addition, I establish a framework of social roles that designers may employ to craft transmedia narratives before live launch and to promote and scaffold player participation after play begins. Overall, the contributions of my study include theoretical insights that may advance our understanding of narrative design and analysis as well as more practical design implications for designers and practitioners seeking to incorporate transmedia features into learning experiences that target youth.

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This study examines the organizational structures and decision-making processes used by school districts to recruit and hire school librarians. For students to acquire the information and technology literacy education they need, school libraries must be staffed with qualified individuals who can fulfill the librarian’s role as leader, teacher, instructional partner, information specialist, and program administrator. Principals are typically given decision rights for hiring staff, including school librarians. Research shows that principals have limited knowledge of the skills and abilities of the school librarian or the specific needs and functions of the library program. Research also indicates that those with specific knowledge of school library programs, namely school district library supervisors, are only consulted on recruiting and hiring about half the time. School districts entrust library supervisors with responsibilities such as professional development of school librarians only after they are hired. This study uses a theoretical lens from research on IT governance, which focuses on the use of knowledge-fit in applying decision rights in an organization. This framework is appropriate because of its incorporation of a specialist with a specific knowledge set in determining the placement of input and decision rights in the decision-making processes. The method used in this research was a multiple-case study design using five school districts as cases, varying by the involvement of the supervisors and other individuals in the hiring process. The data collected from each school district were interviews about the district’s recruiting and hiring practices with principals, an individual in HR, library supervisors, and recently hired school librarians. Data analysis was conducted through iterative coding from themes in the research questions, with continuous adjustments as new themes developed. Results from the study indicate that governance framework is applicable to evaluating the decision-making processes used in recruiting and hiring school librarians. However, a district’s use of governance did not consistently use knowledge-fit in the determination of input and decision rights. In the hiring process, governance was more likely to be based on placing decision rights at a certain level of the district hierarchy rather than the location of specific knowledge, most often resulting in site-based governance for decision rights at the school-building level. The governance of the recruiting process was most affected by the shortage or surplus of candidates available to the district to fill positions. Districts struggling with a shortage of candidates typically placed governance for the decision-making process on recruiting at the district level, giving the library supervisor more opportunity for input and collaboration with human resources. In districts that use site-based governance and that place all input and decision rights at the building level, some principals use their autonomy to eliminate the school library position in the allotment phase or hire librarians that, while certified through testing, do not have the same level of expertise as those who achieve certification through LIS programs. The principals in districts who use site-based governance for decision rights but call on the library supervisor for advisement stated how valuable they found the supervisor’s expertise in evaluating candidates for hire. In no district was a principal or school required to involve the library supervisor in the hiring of school librarians. With a better understanding of the tasks involved, the effect of district governance on decision-making, and the use of knowledge to assign input and decision rights, it is possible to look at how all of these factors affect the outcome in the quality of the hire. A next step is to look at the hiring process that school librarians went through and connect those with the measurable outcomes of hiring: school librarian success, retention, and attrition; the quality of school library program services, outreach, and involvement in a school; and the perceptions of the success of the school librarian and the library program as seen from students, teachers, administrators, parents, and other community stakeholders.

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Dissertação (mestrado)—Universidade de Brasília, Faculdade de Agronomia e Medicina Veterinária, Programa de Pós-Graduação em Agronegócios, 2015.