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Search Results: 1 - 10 of 1907 matches for " Elsa Barber "
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La educación en Bibliotecología y Ciencia de la Información ante el desafío de la Sociedad de la Información
Barber,Elsa;
Informaci?3n, cultura y sociedad , 2004,
Abstract: throughout history, it took agriculture years to develop, to expand, and become known to most cultures. during the last 200 years, part of the humankind has been dominated by the industrial activity. while the rest of the world struggles to participate in the industrial revolution, some countries go through a stage that transforms everything in an extraordinarily fast way. it is what is known as &"information society&". there is no doubt that society is entering a new era in which each aspect of people lives is characterized by the application of information and communication technologies (ict). this article presents some changes that must take place in the education of library and information science professionals in this new environment
La educación en Bibliotecología y Ciencia de la Información ante el desafío de la Sociedad de la Información Library and Information Science education in the face of the Information Society challenge
Elsa Barber
Información, Cultura y Sociedad , 2004,
Abstract: A lo largo de la historia, el desarrollo de la agricultura tardó siglos en concretarse, en expandirse y en darse a conocer en la mayoría de las culturas. Durante los últimos 200 a os, parte de la humanidad ha sido dominada por la actividad industrial. Mientras el resto del mundo se esfuerza por participar en la Revolución Industrial, algunas naciones atraviesan por una etapa que transforma todo de un modo extraordinariamente acelerado. Es lo que se conoce como &"sociedad de la información&". No cabe ninguna duda, de que la sociedad está entrando en una nueva era, en la que cada aspecto de la vida de las personas se caracteriza por las aplicaciones de las Tecnologías de la Información y de la Comunicación (TIC). Se presentan, en este nuevo medio ambiente, algunos cambios que deben plantearse en la formación de los profesionales de la Bibliotecología y la Ciencia de la Información. Throughout history, it took agriculture years to develop, to expand, and become known to most cultures. During the last 200 years, part of the humankind has been dominated by the industrial activity. While the rest of the world struggles to participate in the Industrial Revolution, some countries go through a stage that transforms everything in an extraordinarily fast way. It is what is known as &"information society&". There is no doubt that society is entering a new era in which each aspect of people lives is characterized by the application of Information and Communication Technologies (ICT). This article presents some changes that must take place in the education of library and information science professionals in this new environment
Los catálogos en línea de acceso público del Mercosur disponibles en entorno web Web accessible online public access catalogs in the Mercosur
Elsa Barber,Silvia Pisano,Sandra Romagnoli,Verónica Parsiale
Información, Cultura y Sociedad , 2008,
Abstract: Se analizan las interfaces de usuario de los catálogos en línea de acceso público (OPACs) en entorno web de las bibliotecas universitarias, especializadas, públicas y nacionales de los países parte del Mercosur (Argentina, Brasil, Paraguay, Uruguay), para elaborar un diagnóstico de situación sobre: descripción bibliográfica, análisis temático, mensajes de ayuda al usuario, visualización de datos bibliográficos. Se adopta una metodología cuali-cuantitativa, se utiliza como instrumento de recolección de datos la lista de funcionalidades del sistema que proporciona Hildreth (1982), se actualiza, se obtiene un formulario que permite, mediante 38 preguntas cerradas, observar la frecuencia de aparición de las funcionalidades básicas propias de cuatro áreas: área I - control de operaciones; área II - control de formulación de la búsqueda y puntos de acceso; área III - control de salida y área IV - asistencia al usuario: información e instrucción. Se trabaja con la información correspondiente a 297 unidades. Se delimitan estratos por tipo de software, tipo de biblioteca y país. Se aplican a los resultados las pruebas de Chi-cuadrado, Odds ratio y regresión logística multinomial. El análisis corrobora la existencia de diferencias significativas en cada uno de los estratos y verifica que la mayoría de los OPACs relevados brindan prestaciones mínimas. User interfaces of web based online public access catalogs (OPACs) of academic, special, public and national libraries in countries belonging to Mercosur (Argentina, Brazil, Paraguay, Uruguay) are studied to provide a diagnosis of the situation of bibliographic description, subject analisis, help messages and bibliographic display. A cuali-cuantitative methodology is adopted and a checklist of systems functions created by Hildreth (1982) is updated and used as data collection tool. The resulting 38 closed questions checklist has allowed to observe the frequency of appearance of the basic functions of four areas: Area I - operational control; Area II, search formulation control and access points; Area III ,output control; and IV, user assistance: information and instruction. The study is carried out on the information obtained from 297 information units. Strata are delimited according to type of software, type of library and country. Chi square, Odds Ratio and multinomial logistic regression are applied to results. This analysis confirms the presence of significative differences according to the delimited strata and shows that most of the OPACs surveyed offer minimum capabilities.
Los catálogos en línea de acceso público del Mercosur disponibles en entorno web: características del Proyecto UBACYT F054 Online public access catalogs of Mercosur in a web environment: characteristics of UBACYT F054 Project
Elsa E. Barber,Silvia Pisano,Carolina Gregui,Gabriela De Pedro
Información, Cultura y Sociedad , 2005,
Abstract: Se presentan los lineamientos teórico-metodológicos del proyecto de investigación UBACYT F054 (Programación Científica y Técnica de la Universidad de Buenos Aires 2004-2007). Se analiza la problemática de los catálogos en línea de acceso público (OPACs) disponibles en entorno web de las bibliotecas nacionales, universitarias, especializadas y públicas del Mercosur. Se estudian los aspectos vinculados con el control operativo, la formulación de la búsqueda, los puntos de acceso, el control de salida y la asistencia al usuario. El proyecto se propone, desde un abordaje cuantitativo y cualitativo, efectuar un diagnóstico de situación válido para los catálogos de la región. Plantea, además, un estudio comparativo con el fin de vislumbrar las tendencias existentes dentro de esta temática en bibliotecas semejantes de Argentina, Brasil, Paraguay y Uruguay. The theoretical-methodological aspects of the research project UBACYT F054 (Universidad de Buenos Aires Technical and Scientific Program, 2004- 2007) are outlined. Online Public Access Catalogs (OPACs) in web environment in national, academic, public and special libraries in countries belonging to Mercosur are analized. Aspects related to the operational control, search formulation, access points, output control and user assistance are studied. The project aims, both quantitatively and qualitatively, to make a situation diagnosis valid for the catalogs of the region. It also offers a comparative study in order to see the existing tendencies on the subject in similar libraries in Argentina, Brasil, Paraguay and Uruguay.
Los catálogos en línea de acceso público del Mercosur disponibles en entorno web
Barber,Elsa; Pisano,Silvia; Romagnoli,Sandra; Parsiale,Verónica; de Pedro,Gabriela; Gregui,Carolina;
Informaci?3n, cultura y sociedad , 2008,
Abstract: user interfaces of web based online public access catalogs (opacs) of academic, special, public and national libraries in countries belonging to mercosur (argentina, brazil, paraguay, uruguay) are studied to provide a diagnosis of the situation of bibliographic description, subject analisis, help messages and bibliographic display. a cuali-cuantitative methodology is adopted and a checklist of systems functions created by hildreth (1982) is updated and used as data collection tool. the resulting 38 closed questions checklist has allowed to observe the frequency of appearance of the basic functions of four areas: area i - operational control; area ii, search formulation control and access points; area iii ,output control; and iv, user assistance: information and instruction. the study is carried out on the information obtained from 297 information units. strata are delimited according to type of software, type of library and country. chi square, odds ratio and multinomial logistic regression are applied to results. this analysis confirms the presence of significative differences according to the delimited strata and shows that most of the opacs surveyed offer minimum capabilities.
La automatización y los servicios de las bibliotecas de acceso público de la ciudad autónoma de Buenos Aires y sus alrededores en el marco de la sociedad de la información Public libraries automation and services in buenos aires and surrounding areas in the information society framework
Elsa Barber,Nicolás Tripaldi,Silvia Pisano,Sofía D′Alessandro
Información, Cultura y Sociedad , 2004,
Abstract: Se estudia la relación existente entre el nivel de automatización alcanzado y el uso de las nuevas tecnologías para brindar servicios de alto valor agregado, en el ámbito de las bibliotecas de acceso público de la Ciudad Autónoma de Buenos Aires y sus alrededores. Se presenta un diagnóstico de la situación actual, con el objetivo de determinar si estas unidades están preparadas para responder a las necesidades de la comunidad a la cual sirven en la sociedad de la información. Se aplica una encuesta, con preguntas cerradas, estructurada sobre la base de las siguientes categorías: información general, recursos, automatización, control bibliográfico, integración en redes, servicios y financiamiento. La investigación se realiza sobre la base de 73 respuestas proporcionadas por las bibliotecas relevadas. Se verifica la falta de adopción de estándares con miras al intercambio y el procesamiento distribuido de la información, la ausencia del control de calidad de la información, el aprovechamiento limitado de las tecnologías de información y comunicación The existing relationship between the achieved automation level and the use of new technologies to provide high value-added services, in the context of public libraries in the Ciudad Autónoma de Buenos Aires and surrounding areas is studied. It presents a diagnosis of the current situation, aiming to determine whether these information units are prepared to respond to the needs of the community they serve within the information society. A survey with closed questions is applied based on the following categories: general information, resources, library automation, bibliographic control, networks integration, services, and financing sources. Research is made upon 73 responses provided by the libraries surveyed. The analysis verifies the lack of use of standards looking towards information exchange and the distributed processing of information, the abscence of information quality control, the limited exploitation of new information and communication technologies.
Los catálogos en línea de acceso público del Mercosur disponibles en entorno web: características del Proyecto UBACYT F054
Barber,Elsa E.; Pisano,Silvia; Gregui,Carolina; De Pedro,Gabriela; D'Alessandro,Sofía; Romagnoli,Sandra; Parsiale,Verónica;
Informaci?3n, cultura y sociedad , 2005,
Abstract: the theoretical-methodological aspects of the research project ubacyt f054 (universidad de buenos aires technical and scientific program, 2004- 2007) are outlined. online public access catalogs (opacs) in web environment in national, academic, public and special libraries in countries belonging to mercosur are analized. aspects related to the operational control, search formulation, access points, output control and user assistance are studied. the project aims, both quantitatively and qualitatively, to make a situation diagnosis valid for the catalogs of the region. it also offers a comparative study in order to see the existing tendencies on the subject in similar libraries in argentina, brasil, paraguay and uruguay.
La automatización y los servicios de las bibliotecas de acceso público de la ciudad autónoma de Buenos Aires y sus alrededores en el marco de la sociedad de la información
Barber,Elsa; Tripaldi,Nicolás; Pisano,Silvia; D′Alessandro,Sofía; Romagnoli,Sandra; Parsiale,Verónica; Pedro,Gabriela De; Gregui,Carolina;
Informaci?3n, cultura y sociedad , 2004,
Abstract: the existing relationship between the achieved automation level and the use of new technologies to provide high value-added services, in the context of public libraries in the ciudad autónoma de buenos aires and surrounding areas is studied. it presents a diagnosis of the current situation, aiming to determine whether these information units are prepared to respond to the needs of the community they serve within the information society. a survey with closed questions is applied based on the following categories: general information, resources, library automation, bibliographic control, networks integration, services, and financing sources. research is made upon 73 responses provided by the libraries surveyed. the analysis verifies the lack of use of standards looking towards information exchange and the distributed processing of information, the abscence of information quality control, the limited exploitation of new information and communication technologies.
Towards a full understanding of water splitting in photosynthesis
James Barber
International Journal of Photoenergy , 2004, DOI: 10.1155/s1110662x04000078
Abstract: The capture and conversion of solar radiation by photosynthetic organisms directly or indirectly provides energy for almost all life on our planet. About 2.5 billion years ago a remarkable biological “machine” evolved known as photosystem two (PSII). This machine can use the energy of visible light (actually red quanta of ∼ 1.8 eV) to split water into dioxygen and “hydrogen”. The latter is made available as reducing equivalents, ultimately destined to convert carbon dioxide to organic molecules. In PSII, the “hydrogen” reduces plastoquinone (PQ) to plastoquinol (PQH2). The water splitting process takes place at a catalytic centre composed of 4 Mn atoms and the reactions involved are chemically and thermodynamically challenging. The process is driven by a photooxidised chlorophyll molecule (P680•
La evaluación de competencias complejas: la práctica del portafolio
Barberá,Elena;
Educere , 2005,
Abstract: currently, the acknowledgement of the portfolio as a learning and evaluation instrument is widely spread framing various disciplines despite its lack of usage amongst teachers as an evaluation system. this article wants to collaborate to the practical approach of this tool as well as to its general spreading providing basic information for its practice.
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