05 maggio 2012
There are 94 naturally occurring elements, from Hydrogen to Plutonium. Together they make up everything in the world. The stories of the elements are intimately connected to the stories of our own lives.
Everything we use and create is made from them. Our own bodies are mostly made from just 6 of the elements.
They affect our lives in countless ways, and their stories reveal our relationship with our resources and the patterns of our economies.
The project is creating a collection of unique human stories by award-winning filmmakers and the best emerging filmmaking talent about the endless ways the elements touch our daily lives.
Each filmmaker will create an authored 4-7 minute film around a way we extract or use one element. The films are surprising and moving human stories involving the elements – this is not about science, but about our human relationships with our natural resources.
Become part of the project: indiegogo.com/94elements
Visit the project website: 94elements.com
04 maggio 2012
03 maggio 2012
Satellite Event of KDIR 2012
Nowadays users are more and more interested in information rather than in mere raw data.
The huge amount of accessible data sources is growing rapidly. This calls for novel systems providing effective means of searching and retrieving information with the fundamental goal of making it exploitable by humans and machines.
DART focuses on researching and studying new challenges in distributed information filtering and retrieval. In particular, DART aims to investigate novel systems and tools to distributed scenarios and environments. DART will contribute to discuss and compare suitable novel solutions based on intelligent techniques and applied in real-world applications.
Information Retrieval attempts to address similar filtering and ranking problems for pieces of information such as links, pages, and documents. Information Retrieval systems generally focus on the development of global retrieval techniques, often neglecting individual user needs and preferences.
Information Filtering has drastically changed the way information seekers find what they are searching for. In fact, they effectively prune large information spaces and help users in selecting items that best meet their needs, interests, preferences, and tastes.
These systems rely strongly on the use of various machine learning tools and algorithms for learning how to rank items and predict user evaluation.
DART 2012 is aimed at putting together practitioners and researchers working on pervasive and intelligent access to distributed information, multimedia, and web services. Authors should submit an original paper in English, carefully checked for correct grammar and spelling, using the on-line submission procedure. The submission must have up to 13 pages otherwise it will be rejected without review. Please check the paper formats page so you may be aware of the accepted paper page limits.
The guidelines for paper formatting provided at the conference web ought to be used for all submitted papers. The preferred submission format is the same as the camera-ready format. Please check and carefully follow the instructions and templates provided. Each paper should clearly indicate the nature of its technical/scientific contribution, and the problems, domains or environments to which it is applicable.
Papers that are out of the workshop scope or contain any form of plagiarism will be rejected without reviews. Please read INSTICC's ethical norms regarding plagiarism and self-plagiarism.
Remarks about the on-line submission procedure:
1. A "double-blind" paper evaluation method will be used. To facilitate that, the authors are kindly requested to produce and provide the paper, WITHOUT any reference to any of the authors. This means that is necessary to remove the authors personal details, the acknowledgements section and any reference that may disclose the authors identity.
LaTeX/PS/PDF/DOC/DOCX/RTF format are accepted.
2. The web submission procedure automatically sends an acknowledgement, by e-mail, to the contact author. After the reviewing process is completed, the contact author (the author who submits the paper) of each paper will be notified of the result, by e-mail. The authors are required to follow the reviews in order to improve their paper before the camera-ready submission.
The workshop proceedings will be published in a workshop proceedings book and on CD-ROM support, under an ISBN reference. Also, all papers presented at the workshop venue would be available at the SciTePress Digital Library
The corresponding-authors will be notified at all time, for the submission, notification, and confirmation on the attendance. Submitting a paper to the workshop means that, if the paper is accepted, at least one author should attend the conference to present the paper and should then register to the conference with a workshop fee.
Topics of interest:
- Web Information Filtering and Retrieval
- Web Personalization and Recommendation
- Web Advertising
- Web Agents
- Web of Data
- Semantic Web
- Linked Data
- Semantics and Ontology Engineering
- Search for Social Networks and Social Media
- Natural Language and Information Retrieval in the Social Web
- Real-time Search
- Text categorization
Paper Submission: June 21, 2012
Authors Notification: July 10, 2012
Final Paper Submission and Registration: July 24, 2012
Workshop days: October 5-6, 2012
CRS4, Center of Advanced Studies, Research and Development in Sardinia. Pula, Cagliari - Italy - email: clai [at] crs4 [dot] it
Dept. of Computer Science. University of Bari, Aldo Moro. Bari - Italy - email: semeraro [at] di [dot] uniba [dot] it
DIEE, Dept. of Electrical and Electronic Engineering. University of Cagliari. Cagliari - Italy - email: alessandro [dot] giuliani [at] diee [dot] unica [dot] it
02 maggio 2012
Ho già citato Ruggero Da Ros nel post: "Come calcolare i consumi di casa nostra (standby compresi)? Ce lo spiega Karin Bertolussi" e ci siamo accorti di aver riflettuto entrambi sugli attraversamenti pedonali: Sacile: bene i 30 km/h, ma eliminiamo le strisce (L'Azione, 24 aprile 2012) e Strisce e semafori a Londra (Linguaggio Macchina, 26 febbraio 2012).
Ruggero Da Ros mi segnala anche una ricerca condotta da 18 Automobile Club europei, descritta nel sito: Pedestrian Crossing, che contiene anche i consigli dell'ACI per i pedoni:
- Non attraversare la strada a sorpresa
- Fai attenzione ai veicoli su tutte le corsie, comprese quelle più lontane (dal lato opposto)
- Metti sempre in conto possibili errori dei conducenti
- Dai sempre la precedenza ai pedoni, sia che provengano da destra che da sinistra
- Non sorpassare veicoli che rallentano, frenano o si arrestano improvvisamente
- Metti in conto possibili errori dei pedoni
Andrea Mameli 2 maggio 2012 - nella foto: Marco Mameli alle prese con un attraversamento protetto (Londra, febbraio 2012)Pedestrian Crossing (1948) British Public Information Films. Public Information Film from 1974 starring Frank Thornton & Larry Martyn.
01 maggio 2012
Bill DiMichele, paleontologo del Smithsonian's National Museum of Natural History di Washington e i suoi colleghi Howard Falcon-Lang (Università di Bristol), John Nelson e Scott Elrick (Illinois State Geological Survey), Phil Ames (Peabody Coal Company) hanno pubblicato gli esiti della loro scoperta cinque anni fa su Geology (rivista della Geological Society of America): “Ecological Gradients Within a Pennsylvanian Mire Forest”
Pennsylvanian coals represent remains of the earliest peat-forming rain forests, but there is no current consensus on forest ecology. Localized studies of fossil forests suggest intermixture of taxa (heterogeneity), while, in contrast, coal ball and palynological analyses imply the existence of pronounced ecological gradients. Here, we report the discovery of a spectacular fossil forest preserved over ∼1000 ha on top of the Pennsylvanian (Desmoinesian) Herrin (No. 6) Coal of Illinois, United States. The forest was abruptly drowned when fault movement dropped a segment of coastal mire below sea level. In the largest study of its kind to date, forest composition is statistically analyzed within a well-constrained paleogeographic context. Findings resolve apparent conflicts in models of Pennsylvanian mire ecology by confirming the existence of forest heterogeneity at the local scale, while additionally demonstrating the emergence of ecological gradients at landscape scale.
P.S. Ho trovato un'altra Pompei botanica in un articolo pubblicato su PNAS nel 2011: Permian vegetational Pompeii from Inner Mongolia and its implications for landscape paleoecology and paleobiogeography of Cathaysia. Ma erano solo mille metri quadri di foresta. Dieci volte più piccola di quella scoperta da Bill DiMichele.
Andrea Mameli www.linguaggiomacchina.it 1 maggio 2012
30 aprile 2012
L'11 agosto 2011, in occasione del festival Ars Electronica di Linz (Austria) la Tesla Orchestra, fondata due anni prima da Ian Charnas nella Case Western Reserve University (Usa), dispone delle più grandi bobine di Tesla del mondo. La bobina di Tesla è il trasformatore risonante ideato dal fisico serbo Nikola Tesla circa un secolo fa.
Il termine Singing Tesla Coil è stato coniato nel 2007 da David Nunez, coordinatore degli eventi "Dorkbot" (incontri fra artisti, scienziati, studenti e persone interessate all'uso creativo della tecnologia) in Texas: The singing Tesla coils cnet.com (March 10, 2007). Ma c'è anche chi la bobina musicale se la costruisce, come Daniel Eindhoven, giovane inventore olandese, il quale ha creato un modello da 170 mila V Audio Modulated Solid State Teslacoil V2.0.
Andrea Mameli www.linguaggiomacchina.it 30 aprile 2012
29 aprile 2012
Per Robert Belshaw (Dipartimento di Zoologia dell'Università di Oxford), coordinatore della ricerca: "Sospettiamo che questi virus siano stati indotti a fare una scelta: mantenere il loro tipico comportamento da virus e diffondersi tra gli animali oppure entrare stabilmente nel genoma degli ospiti. Una storia che continua ininterrottamente da oltre 100 milioni di anni."
Testo e foto: Andrea Mameli, blog www.linguaggiomacchina.it 29 aprile 2012Env-less endogenous retroviruses are genomic superspreaders
Gkikas Magiorkinisa, Robert J. Giffordb, Aris Katzourakisa, Joris De Ranterc, Robert Belshawa
Edited by Stephen P. Goff, Columbia University College of Physicians and Surgeons, New York, NY, and approved March 30, 2012 (received for review January 19, 2012)
Endogenous retroviruses (ERVs) differ from typical retroviruses in being inherited through the host germline and therefore are a unique combination of pathogen and selfish genetic element. Some ERV lineages proliferate by infecting germline cells, as do typical retroviruses, whereas others lack the env gene required for virions to enter cells and thus behave like retrotransposons. We wished to know what factors determined the relative abundance of different ERV lineages, so we analyzed ERV loci recovered from 38 mammal genomes by in silico screening. By modeling the relationship between proliferation and replication mechanism in detail within one group, the intracisternal A-type particles (IAPs), and performing simple correlations across all ERV lineages, we show that when ERVs lose the env gene their proliferation within that genome is boosted by a factor of ∼30. We also show that ERV abundance follows the Pareto principle or 20/80 rule, with ∼20% of lineages containing 80% of the loci. This rule is observed in many biological systems, including infectious disease epidemics, where commonly ∼20% of the infected individuals are responsible for 80% of onward infection. We thus borrow simple epidemiological and ecological models and show that retrotransposition and loss of env is the trait that leads endogenous retroviruses to becoming genomic superspreaders that take over a significant proportion of their host's genome.