Librería Digital de Funciones Matemáticas

El proyecto Digital Library of Mathematical Functions, DLMF, del NIST, está llamado a convertirse en el sucesor del "Handbook of Mathematical Functions" editado por Milton Abramowitz e Irene Stegun, que es uno de los libros más citados en la historia de las matemáticas". Publicado por primera vez en 1964, este título constituye la referencia obligada de consulta de definiciones y propiedades de un gran número de funciones matemáticas de uso estándar en ciencia y tecnología. En su versión digital, la librería no sólo permite ofrecer un repositorio accesible y actualizado de funciones matemáticas, sino que se vale de las nuevas tecnologías para dar valor añadido a esa información utilizando gráficos interactivos y otras herramientas de gran utilidad para matemáticos, científicos e ingenieros. El DLMF también tiene una versión impresa titulada NIST Handbook of Mathematical Functions, que ha sido publicada por Cambridge University Press

Via Barrapunto

Repositorio institucional de la UOC

http://openaccess.uoc.edu/
El repositorio institucional de la UOC contiene las publicaciones digitales en acceso abierto producidas por la UOC en las actividades de investigación, docencia y gestión. Cualquier miembro de la comunidad UOC (investigadores, profesores, personal de gestión, estudiantes...) puede publicar documentos en el repositorio con diferentes permisos según su perfil. Todos los documentos entrados en el repositorio siguen un proceso de revisión por parte de la Biblioteca Virtual antes de su publicación final.

Repositorios de fotografías para uso libre

Here is a list of 12 free stock photo resources that you must bookmark:
http://www.webresourcesdepot.com/12-amazing-and-free-stock-photo-resources

Collecta, otro buscador en tiempo real (twitter, blogs...)

Copiado de: http://www.freetech4teachers.com/

Collecta is a real-time search engine that launched a little over a month ago. I've written about some other real-time search engines recently and you can find those articles here and here. In general all real-time search engines are designed to draw the latest links about any given topic from a variety of sources.Collecta draws its results from Twitter, YouTube, and various blogs and news websites.

Applications for Education
I've written before about using real-time search engines in Social Studies classrooms, you can read that posthere.
Real-time search engines could become valuable tools for educators to learn about new research, ideas, and trends in education. In addition to learning about topics in the education field, teachers can also keep up on the latest information regarding their particular content area.

Open Repositories 2009

 via JISC CETIS News by John Robertson on 6/5/09

Held at Georgie Tech, Open Repositories 2009 hosted 326 delegates form 23 countries. The conference ran smoothly and managed to provide robust wifi for anyone who wanted it. The conference dinner was held at the Georgia Aquarium; the aquarium was inspiring (though the theme music was a bit much after a while) and the dinner was splendid.

Atlanta Aquarium Jellyfish

The conference proper once again provided a state of the art view of repository software and emerging trends in institutional (& organisational) approaches to managing digital assets. It proved to be a thought-provoking few days.
Of particular note was the impact of SWORD which was, frankly, everywhere. I'm not going to say a great deal about it beyond noting that:

• at least for this conference, it has become the de facto standard for deposit tools
• there are now a good number of desktop tools and application plug-ins supporting SWORD deposit

It will be interesting to see how it evolves from here. For those of you on Twitter @swordapp tweets updates of SWORD related developments.
[disclaimer: I have in the past worked with both of the SWORD project managers]
Another feature of the conference was another RepoChallenge. Sponsored by JISC and Microsoft this again attracted a lot of interest; David Flanders, the organiser, has blogged about the event, participants, and winners (Winner: MentionIt by Tim Donohue; Runner up: FedoraFS by Rebecca Koesar)
http://dev8d.jiscinvolve.org/2009/05/20/repochallenge-winners/.
I've got about 8 pages of tweets covering the rest of the conference - rather than bore you with I'll offer this wordle as a summary and instead comment on what I felt to be the most important developments.

I'll also note in passing the approach one session took to supporting twitterers - programme session 7 a - chaired by Robert Macdonald http://twitter.com/mcdonald/ added a hashtag for their session #ps7a alongside #or09 this would allow the seperate retrieval and analysis of that sessions tweets from the more general stream of conference tweets.
Trends that I noticed emerging from the conference:

• managing datasets is firmly entering institutional agendas. In part this is pushed by funding bodies in part through a desire for more open data.
• the merger of the DSpace and Fedora organisations should provide a more stable future for the software platforms and in the longer term greater opportunities for collaborative development.
• California Digital Library (John Kunze's presentation) are shifting to repository microservices and beginning to move beyond single software products. (I couldn't help being reminded of the eFramework but CDL seems to be beginning with a specific local business case)
• there appears to be a growing interest in Open Access journal publishing in North America: both in the production of new journals and through collaboration with university presses; Microsoft Research have also developed a hosted open access journal service.
• Zentity - it's is unclear yet to what extent Microsoft Research's repository will gain traction in the community but the impact of their engagement with the sector and tools like Zentity and the SWORD deposit plugin for MS Office is significant in itself.
• @mire and mediashelf are two commercial companies heavily involved in the development of additional functionality or support services for DSpace and Fedora (respectively). It was striking how many projects doing innovative stuff had worked with one or other of them. Eprints has offered customisation, hosting, and related services for a while but that initiative emerged from the ECS department at Southampton where the software originated, whereas these two companies seem to have emerged more independently.

It was also interesting to note a few presentations touching on managing learning materials.
Other blogs reporting on OR09 are listed at:
http://repositorynews.wordpress.com/2009/05/28/open-repositories-2009/

CrowdEye, un buscador para Twitter creado por ex-empleados de Microsoft

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CrowdEye, un buscador para Twitter creado por ex-empleados de Microsoft

Hace pocos días les contábamos sobre los planes que tenía Google para "lanzar un buscador enfocado en microblogs" que sirviera de alternativa al clásico Twitter Search. Ahora les presentaremos otra alternativa de este tipo, pero que puede ser usada desde ahora. Se trata de un buscador llamado CrowdEye, creado Ken Moss, un ex-empleado de Microsoft que antes ocupaba el cargo de General Manager de la división de búsquedas de Redmond.

Dentro de las ventajas que tiene respecto al tradicional buscador de Twitter está el ofrecernos un análisis de los resultados mediante una nube de tags con temas relacionados a la búsqueda que hemos hecho, y un gráfico de barras en el que se muestran la cantidad de twiteos por hora sobre el tópico en cuestión. Asimismo, disponemos de una lista con los links más twiteados, y de los Hash Tags populares que más se relacionen con las palabras clave que ingresamos.

En CrowdEye no vemos un ordenamiento de los resultados basado en la relevancia (que es la gran novedad que promete el buscador de Google) sino que sólo se nos entregan más herramientas para filtrar y analizar los resultados de acuerdo a cuan recientes son, o las temáticas con las que están relacionados.

La principal limitante que CrowdEye presenta por ahora es que sólo realiza búsquedas entre los tweets en inglés, pero probablemente esto será subsanado en breve.

Vía | All About Microsoft

Enlace | CrowdEye

Find Creative Commons Images in Google Image Search

Find Creative Commons Images in Google Image Search

Google Image Search added the option to restrict the results to images that are licensed using Creative Commons, a list of flexible licenses that allow content creators to share their works with the world.

The options aren't yet available in the interface, but you can use the search box below to find images that are licensed using some of the most popular Creative Commons licenses:



Images labeled for:
Reuse
Commercial reuse
Reuse with modification
Commercial reuse with modification




The four options displayed above combine different Creative Commons license, but you can create customized searches for other combination of licenses:

* public domain images:
http://images.google.com/images?q=mountains&as_rights=cc_publicdomain

* images licensed using Creative Commons Attribution:
http://images.google.com/images?q=mountains&as_rights=cc_attribute

* images licensed using Creative Commons Attribution Share-Alike:
http://images.google.com/images?q=mountains&as_rights=cc_sharealike

Last month, Yahoo Image Search added a similar feature, limited to Flickr images. "By launching the Creative Commons license search with Flickr and making it available to all our Yahoo! Image Search users, we aim to promote reusable work and to be transparent about the guidelines issued by the creator of a particular image," mentioned Yahoo's blog.

dotSub: repositorio de vídeos subtitulados

sobre la base de una excelente herramienta para traducir subtítulos a otros idiomas se construye este repositorio de vídeos

 clipped from dotsub.com

dotSUB is a browser based tool enabling subtitling of videos on the web into and from any language. There is nothing to buy and nothing to download. Recognizing the potential of global communication powered by the Internet, the founders of dotSUB created a web-based tool that enables video to be accessed in an open, collaborative, "wiki" type environment. The dotSUB tool gives anyone the ability to translate video content into multiple languages via subtitles rendered over the bottom of the video.

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The goal was to create a tool that was as simple to use as the Google search bar, with no downloads, that could engage the power, methodologies and thinking of open source, wikipedia, social networking, creative commons and web2.0 user involvement to substantially remove language and cost as a barrier to cross-cultural communication using video.

Get Clipmarks - The easiest way to email text, images and videos you find on the web.

Search Cloudlet: context-aware tags in google search

 clipped from www.getcloudlet.com

beta 2

free Firefox extension that helps you google the internet faster

 clipped from www.getcloudlet.com

INTSPEI Search Cloudlet is an easy-to-use Firefox add-on that inserts context-aware tag clouds into a traditional Google, Yahoo and Twitter interface to help you navigate more efficiently through search results.

Get Clipmarks - The easiest way to email text, images and videos you find on the web.

Encuentra tutoriales para Photoshop con Vunky

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Encuentra tutoriales para Photoshop con Vunky

La aplicación Photoshop, de Adobe, se ha convertido en la herramienta profesional de retoque fotográfico más utilizada entre los usuarios. Existen otras alternativas gratuitas y libres, como Gimp, pero no han alcanzado la popularidad de Adobe Photoshop. Por este motivo, existe una amplia oferta de cursos, oficiales o no, para aprender a manejar Adobe Photoshop.

Vunky es un buscador, vía online, especializado en encontrar tutoriales para Adobe Photoshop. Su lema, Fast and Furious Photoshop Tutorial Browser!, pretende destacar la rapidez de su búsqueda y la facilidad para encontrar el tutorial que resolverá tus dudas. Por el momento, existen 95 tutoriales recogidos por su base de datos.

El funcionamiento de Vunky es similar a cualquier otro buscador. Posee una caja de texto para introducir las palabras clave que queremos encontrar. Debajo ofrece una nube de términos con las palabras más utilizadas por los usuarios. Entre las palabras clave están 10steps, smoke, texture, lighting effects o 3d.

Enlace: Vunky | Vía: EnlazandoWeb v2.0

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