557 resultados para Webs
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Resumen basado en el de la publicaci??n
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Resumen basado en el de la publicaci??n
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Se define la funci??n de esta aplicaci??n que no es otra que obtener informaci??n/formaci??n sobre un determinado tema. Algunas de sus cuestiones conllevan contestar a preguntas, otras realizar res??menes, hacer comparaciones o resolver problemas. Se accede a webs multimedia que pueden ser interactivas, lo que la convierte en id??nea para todas las ??reas. Se expone, como ejemplo, un bosquejo de webquest de matem??ticas con una ficha did??ctica para el profesor y una gu??a para el alumnado. Se incluyen comentarios para facilitar la comprensi??n de su lectura.
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Resumen basado en el de la publicaci??n
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Resumen basado en el de la publicaci??n
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Resumen tomado de la publicaci??n
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El mundo del software está cambiando. El desarrollo de Internet y las conexiones de datos hacen que las personas estén conectadas prácticamente en cualquier lugar. La madurez de determinadas tecnologías y el cambio del perfil de los usuarios de consumidor a generador de contenidos son algunos de los pilares de este cambio. Los Content Management Systems (CMS) son plataformas que proporcionan la base para poder generar webs colaborativas de forma sencilla y sin necesidad de tener excesivos conocimientos previos y son responsables de buena parte de este desarrollo. Una de las posibilidades que todavía no se han explotado suficientemente en estos sistemas es la georreferenciación de contenidos. De esta forma, aparece una nueva categoría de enlaces semánticos en base a las relaciones espaciales. En el actual estado de la técnica, se puede aprovechar la potencia de las bases de datos espaciales para manejar contenidos georreferenciados y sus relaciones espaciales, pero prácticamente ningún CMS lo aprovecha. Este proyecto se centra en desarrollar un módulo para el CMS Drupal que proporcione un soporte verdaderamente espacial y una interfaz gráfica en forma de mapa, mediante las que se puedan georreferenciar los contenidos. El módulo es independiente del proveedor de cartografía, ya que se utiliza la librería Open Source de abstracción de mapas IDELab Mapstraction Interactive. De esta forma se aúna la independencia tecnológica con la gestión verdaderamente espacial de los contenidos
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La presente comunicación se basa en el proyecto Integra: Tutorias de transición 'Mercado laboral de los egresados en Relaciones laborales', Proyecto de Innovación educativa del Vicerectorat de Convergència Europea i Qualitat de la Universitat de València. El objetivo del mismo ha sido mostrar a los estudiantes de Relaciones Laborales, principalmente del programa de innovación docente (PIE), las principales salidas profesionales, las competencias y habilidades requeridas y su vinculación con las materias objeto de estudio de su titulación. Para ello, se ha contado con la participación en el proyecto del profesorado que impartía docencia en el PIE y un grupo de profesionales externos a la Universidad, directamente vinculados a dichos estudios, que expusieron una descripción del puesto, requisitos de acceso, funciones, habilidades requeridas, competencias exigidas, recompensas y dificultades en el ejercicio de la profesión. El proyecto incluye el desarrollo de una aplicación informatica en eXe-learnig (http://www.uv.es/innovarl) con diverso material escrito, audiovisual alojado en el servidor multimedia de la Universitat de València y links con otras páginas webs que permite al usuario, futuro estudiante de la universidad, estudiante actrual o persona interesada en la tematica, navegar a través de los contenidos publicados
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Este estudio presenta los efectos de la implementación de un programa de ejercicio como terapia complementaria del tratamiento del cáncer próstata. El diseño del estudio es casi-experimental con una muestra de 33 pacientes en fase de tratamiento. En la metodología del programa se utiliza la guía de la American College Sports Medicine Position Stand (ACSM, 2009). Se estudian las variables antropométricas, la fuerza-resistencia, el consumo máximo de oxígeno (VO2 Máx), la percepción subjetiva del esfuerzo, la incontinencia, el dolor y la Calidad de Vida (CdV). Al finalizar 24 semanas de programa, se observa una mejora significativa de la CdV del enfermo. Los resultados demuestran que la mejoría en la CdV viene mediada por la mejora de la capacidad física, funcional y psico-emocional del enfermo. El modelo de adherencia integrado al programa de ejercicio consigue mejorar la calidad y cantidad de ejercicio necesario para la práctica autónoma en el hogar
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“…we have to take into account the fact that museology and museums are two completely different things.” Martin R. Shärer[1] In the 20th century, growing populations produced a growing body of heritage. The transmission of this heritage to succeeding generations coalesced into three major modern institutions: universities, library/archives and museums. Traditional systems of social and cultural memory had become overloaded and therefore evolved conceptually. This evolution took place within the primary context of a naturally occurring museology through the process I call museogenesis. The term museogenesis refers to the origin and development of museological thought in a specific cultural context. By museological thought, I refer to ideas and theories surrounding the parameters of “the natural and cultural heritage, the activities concerned with the preservation and communication of this heritage, the institutional frame-work, and society as a whole” (Mensch 1992). This broadly inclusive definition relates museology to another broadly defined concept: cultural context. By cultural context, I refer to the “webs of significance and systems of meaning which is the collective property of a group” (Geertz 1973). [1] ICOFOM Study Series – ISS 34, 2003, ISS 34_03.pdf, p.7
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The effects of chlorpyrifos on aquatic systems are well documented. However, the consequences of the pesticide on soil food webs are poorly understood. In this field study, we hypothesised that the addition of a soil insecticide to an area of upland grassland would impact spider and Collembola communities by decreasing numbers of spiders, consequently, causing an increase in detritivore numbers and diversity. Chlorpyrifos was added to plots on an upland grassland in a randomised block design. Populations of Collembola and spiders were sampled by means of pitfall traps (activity density) and identified to species. Twelve species of Collembola were identified from the insecticide-treated and control plots. Species diversity, richness and evenness were all reduced in the chlorpyrifos plots, although the total number of Collembola increased ten-fold despite the abundance of some spider species being reduced. The dominant collembolan in the insecticide-treated plots was Ceratophysella denticulata, accounting for over 95% of the population. Forty-three species of spider were identified. There were a reduced number of spiders in insecticide-treated plots due mainly to a lower number of the linyphiid, Tiso vagans. However, there was no significant difference in spider diversity between the control and insecticide treatments. We discuss possible explanations for the increase in abundance of one collembolan species in response to chlorpyrifos and the consequences of this. The study emphasises the importance of understanding the effects of soil management practices on soil biodiversity, which is under increasing pressure from land development and food production. It also highlights the need for identification of soil invertebrates to an 'appropriate' taxonomic level for biodiversity estimates. (C) 2007 Elsevier GrnbH. All rights reserved.
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Although the effects of nutrient enhancement on aquatic systems are well documented, the consequences of nutritional supplements on soil food webs are poorly understood, and results of past research examining bottom-up effects are often conflicting. In addition, many studies have failed to separate the effects of nutrient enrichment and the physical effects of adding organic matter. In this field study, we hypothesised that the addition of nitrogen to soil would result in a trophic cascade, through detritivores (Collembola) to predators (spiders), increasing invertebrate numbers and diversity. Nitrogen and lime were added to plots in an upland grassland in a randomised block design. Populations of Collembola and spiders were sampled by means of pitfall traps and identified to species. Seventeen species of Collembola were identified from the nitrogen plus lime (N + L) and control plots. Species assemblage, diversity, richness, evenness and total number were not affected by nutrient additions. However, there was an increase in the number of Isotomidae juveniles and Parisotoma anglicana trapped in the N + L plots. Of the 44 spider species identified, over 80% were Linyphiidae. An effect on species assemblage from the addition of N + L to the plots was observed on two of the four sampling dates (July 2002 and June 2003). The linyphiid, Oedothorax retusus, was the only species significantly affected by the treatments and was more likely to be trapped in the control plots. The increased number of juvenile Collembola, and change in community composition of spiders, were consequences of the bottom-up effect caused by nutrient inputs. However, despite efforts to eliminate the indirect effects of nutrient inputs, a reduction in soil moisture in the N + L plots cannot be eliminated as a cause of the invertebrate population changes observed. Even so, this experiment was not confounded by the physical effects of habitat structure reported in most previous studies. It provides evidence of moderate bottom-up influences of epigeic soil invertebrate food webs and distinguishes between nutrient addition and plant physical structure effects. It also emphasises the importance Of understanding the effects of soil management practices on soil biodiversity, which is under increasing pressure from land development and food production.
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Mites are involved in the decomposition of animal carcases and human corpses at every stage. From initial decay at the fresh stage until dry decomposition at the skeletal stage, a huge diversity of Acari, including members of the Mesostigmata, Prostigmata, Astigmata, Endeostigmata, Oribatida and Ixodida, are an integral part of the constantly changing food webs on, in and beneath the carrion. During the desiccation stage in wave 6 of M,gnin's system, mites can become the dominant fauna on the decomposing body. Under conditions unfavourable for the colonisation of insects, such as concealment, low temperature or mummification, mites might become the most important or even the only arthropods on a dead body. Some mite species will be represented by a few specimens, whereas others might build up in numbers to several million individuals. Astigmata are most prominent in numbers and Mesostigmata in diversity. More than 100 mite species and over 60 mite families were collected from animal carcases, and around 75 species and over 20 families from human corpses.
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Grasslands restoration is a key management tool contributing to the long-term maintenance of insect populations, providing functional connectivity and mitigating against extinction debt across landscapes. As knowledge of grassland insect communities is limited, the lag between the initiation of restoration and the ability of these new habitats to contribute to such processes is unclear. Using ten data sets, ranging from 3 to 14 years, we investigate the lag between restoration and the establishment of phytophagous beetle assemblages typical of species rich grasslands. We used traits and ecological characteristics to determine factors limiting beetle colonisation, and also considered how food-web structure changed during restoration. For sites where seed addition of host-plants occurred the success in replicating beetle assemblages increased over time following a negative exponential function. Extrapolation beyond the existing data set tentatively suggested that success would plateau after 20 years, representing a c. 60% increase in assemblage similarity to target grasslands. In the absence of seed addition, similarity to the target grasslands showed no increase over time. Where seed addition was used the connectance of plant-herbivore food webs decreased over time, approaching values typical of species rich grasslands after c. 7 years. This trend was, however, dependent on the inclusion of a single site containing data in excess of 6 years of restoration management. Beetles not capable of flight, those showing high degrees of host-plant specialisation and species feeding on nationally rare host plants take between 1 and 3 years longer to colonise. Successful grassland restoration is underpinned by the establishment of host-plants, although individual species traits compound the effects of poor host-plant establishment to slow colonisation. The use of pro-active grassland restoration to mitigate against future environmental change should account for lag periods in excess of 10 years if the value of these habitats is to be fully realised.
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The discourse surrounding the virtual has moved away from the utopian thinking accompanying the rise of the Internet in the 1990s. The Cyber-gurus of the last decades promised a technotopia removed from materiality and the confines of the flesh and the built environment, a liberation from old institutions and power structures. But since then, the virtual has grown into a distinct yet related sphere of cultural and political production that both parallels and occasionally flows over into the old world of material objects. The strict dichotomy of matter and digital purity has been replaced more recently with a more complex model where both the world of stuff and the world of knowledge support, resist and at the same time contain each other. Online social networks amplify and extend existing ones; other cultural interfaces like youtube have not replaced the communal experience of watching moving images in a semi-public space (the cinema) or the semi-private space (the family living room). Rather the experience of viewing is very much about sharing and communicating, offering interpretations and comments. Many of the web’s strongest entities (Amazon, eBay, Gumtree etc.) sit exactly at this juncture of applying tools taken from the knowledge management industry to organize the chaos of the material world along (post-)Fordist rationality. Since the early 1990s there have been many artistic and curatorial attempts to use the Internet as a platform of producing and exhibiting art, but a lot of these were reluctant to let go of the fantasy of digital freedom. Storage Room collapses the binary opposition of real and virtual space by using online data storage as a conduit for IRL art production. The artworks here will not be available for viewing online in a 'screen' environment but only as part of a downloadable package with the intention that the exhibition could be displayed (in a physical space) by any interested party and realised as ambitiously or minimally as the downloader wishes, based on their means. The artists will therefore also supply a set of instructions for the physical installation of the work alongside the digital files. In response to this curatorial initiative, File Transfer Protocol invites seven UK based artists to produce digital art for a physical environment, addressing the intersection between the virtual and the material. The files range from sound, video, digital prints and net art, blueprints for an action to take place, something to be made, a conceptual text piece, etc. About the works and artists: Polly Fibre is the pseudonym of London-based artist Christine Ellison. Ellison creates live music using domestic devices such as sewing machines, irons and slide projectors. Her costumes and stage sets propose a physical manifestation of the virtual space that is created inside software like Photoshop. For this exhibition, Polly Fibre invites the audience to create a musical composition using a pair of amplified scissors and a turntable. http://www.pollyfibre.com John Russell, a founding member of 1990s art group Bank, is an artist, curator and writer who explores in his work the contemporary political conditions of the work of art. In his digital print, Russell collages together visual representations of abstract philosophical ideas and transforms them into a post apocalyptic landscape that is complex and banal at the same time. www.john-russell.org The work of Bristol based artist Jem Nobel opens up a dialogue between the contemporary and the legacy of 20th century conceptual art around questions of collectivism and participation, authorship and individualism. His print SPACE concretizes the representation of the most common piece of Unicode: the vacant space between words. In this way, the gap itself turns from invisible cipher to sign. www.jemnoble.com Annabel Frearson is rewriting Mary Shelley's Frankenstein using all and only the words from the original text. Frankenstein 2, or the Monster of Main Stream, is read in parts by different performers, embodying the psychotic character of the protagonist, a mongrel hybrid of used language. www.annabelfrearson.com Darren Banks uses fragments of effect laden Holywood films to create an impossible space. The fictitious parts don't add up to a convincing material reality, leaving the viewer with a failed amalgamation of simulations of sophisticated technologies. www.darrenbanks.co.uk FIELDCLUB is collaboration between artist Paul Chaney and researcher Kenna Hernly. Chaney and Hernly developed together a project that critically examines various proposals for the management of sustainable ecological systems. Their FIELDMACHINE invites the public to design an ideal agricultural field. By playing with different types of crops that are found in the south west of England, it is possible for the user, for example, to create a balanced, but protein poor, diet or to simply decide to 'get rid' of half the population. The meeting point of the Platonic field and it physical consequences, generates a geometric abstraction that investigates the relationship between modernist utopianism and contemporary actuality. www.fieldclub.co.uk Pil and Galia Kollectiv, who have also curated the exhibition are London-based artists and run the xero, kline & coma gallery. Here they present a dialogue between two computers. The conversation opens with a simple text book problem in business studies. But gradually the language, mimicking the application of game theory in the business sector, becomes more abstract. The two interlocutors become adversaries trapped forever in a competition without winners. www.kollectiv.co.uk