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Tag: science
2008-11-20 00:36:23| SLIS News
Katy Börner, Victor H. Yngve Associate Professor of Information Science, and the Director of the Cyberinfrastructure for Network Science Center at SLIS recently gave a talk and a workshop at the University of Michigan. The presentations were a part of the Faculty Research Seminar Series held on Wednesday, November 19, 2008 in the Atkins Conference Room, School of Information, Ann Arbor, Michigan. Abstracts are included here: Mapping the Structure and Dynamics of Science Computational scientometrics utilizes terra-bytes of scholarly data, e.g., papers, patents, grants, to study the structure and evolution of science. Among others, this research aims to objectively characterize scholarly entities such as experts, institutions, grants, papers, journals, or research areas in terms of their productivity, interdisciplinarity, or relative speed. It also aims to compute emerging research, vital knowledge flows, or the impact of funding. The first part of this talk presents an analytic study that examined the citation patterns among major U.S. research institutions to answer two questions: (1) Does space still matter in the Internet age, i.e., does one still have to study and work at major research institutions in order to have access to high quality data and expertise and to produce high quality research? and (2) Does the Internet lead to more global citation patterns, i.e., more citation links between papers produced at geographically distant research instructions? The second part of the talk discusses two other studies that used the very same dataset – PNAS papers published between 1982-2001 – to identify topic bursts as indicators for emerging research areas and to design a general process model that simulates the co-evolution of co-author and paper-citation networks. The talk concludes with a discussion of resources available at the Science of Science Cyberinfrastructure Portal. Relevant papers: Börner, Katy, Penumarthy, Shashikant, Meiss, Mark & Ke, Weimao. (2006). Mapping the Diffusion of Information among Major U.S. Research Institutions. Scientometrics. Vol. 68(3), 415 - 426. http://ivl.slis.indiana.edu/km/pub/2006-borner-mapdiff.pdf Whitfield, John. 2008. Group Theory. Nature, 455, 9: 720-723. http://www.nature.com/news/2008/081008/full/455720a.html Network Workbench Tool Workshop This two-hour, hands-on workshop introduces the Network Workbench (NWB) Tool, a network analysis, modeling, and visualization toolkit for physics, biomedical, and social science research. The NWB Tool is a standalone desktop application which installs and runs on Windows, Linux x86 and Mac OSX. The tool provides easy access to more than 80 algorithms/tools and diverse sample datasets for the study of networks. The loading, processing, and saving of basic file formats and an automatic conversion service among those formats are supported. Additional algorithms and data formats can be integrated into the NWB Tool using wizard driven templates thanks to the Cyberinfrastructure Shell (CIShell) (http://cishell.org) that extends the OSGi service platform. The NWB Community Wiki (https://nwb.slis.indiana.edu/community) is a place for users of the NWB tool to contribute and obtain algorithms and datasets. The NWB Tool, CIShell, and the NWB Community Wiki were developed in the NSF funded Network Workbench project, see http://nwb.slis.indiana.edu.
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science
structure
dynamics
mapping
2008-11-20 00:00:00| Gizmodo
Generally, when you think of a hot laser being pointed at your body, you'd expect it to create a hole rather than seal one up. And most of the time, you'd be right. But Abraham Katzir, a physicist at Tel Aviv University, has just begun human trials of healing lasers that promise less scarring, faster healing and less risk of infection when compared to traditional stiches. As you can see from the photos to the left, the laser-healed cut on the bottom healed much better than the suture-sewn cut on top. So how do they keep the laser safe and prevent it from doing more damage than good? To overcome this problem, Katzir and his colleagues developed a laser-based system with a feedback loop that prevents overheating. First, they had to determine the optimal temperature at which flesh melts but can still heal (about 65 degrees Celsius). Then the group created a pen-sized tool that incorporates optic fibers: one that channels a carbon dioxide-powered infrared laser to the wound with pinpoint precision, and another that leads from the pen to an infrared sensor, which measures the temperature and ensures that the heat remains within the ideal range, between 60 and 70 degrees. All a surgeon has to do is move the pen's tip along the cut, strengthening and sealing the weld with a solder of water-soluble protein. Sounds awesome and scary. Bring on the laser sutures! [Technology Review]
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them
science
finally
creating
2008-11-19 22:01:00| SchaeffersResearch.com Market Observations
Amid this uncertain market environment, it's not often you hear about stocks with the potential to muscle higher...(Read More)
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the
american
science
engineering
2008-11-18 00:10:02| digg
Of the 1,019 faculty members to whom the surveys were sent, 464 responded -- and fewer than 1 percent checked off the box marked, Modern evolutionary biology is mostly wrong. Life arose through multiple creation events by an intelligent designer, although evolution by natural selection played a limited role.
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design
science
texas
intelligent
2008-11-13 20:36:09| SLIS News
"An Emergent Mosaic of Wikipedian Activity" is the title of a Science Map by Bruce W. Herr, II, Todd M. Holloway, and Katy Börner. The map is a part of the Places & Spaces: Mapping Science project with Börner's Information Visualization Lab and Cyberinfrastructure for Network Science Center. The Wikipedia Mosaic has received positive media coverage, and was recently featured on the back cover of the Wikimedia Foundation 2007/2008 Annual Report. A quote by Jimmy Wales, Founder of Wikipedia is also included on the back cover: "Imagine a world in which every single human being can freely share in the sum of all knowledge. That's what we're doing." The Places & Spaces website gives details about the Mosaic. Excerpts are included here: Description of Content: This emergent mosaic supplies a macro view of all of the English Wikipedia (http://en.wikipedia.org) and reveals those areas that are currently hot, meaning, of late, they are being frequently being revised. Description of Unique Features: The visualization contains 1,869 images taken from Wikipedia. This represents about 300 articles for every one image. Project URL: http://scimaps.org/maps/wikipedia/ See related SLIS News Stories: A Global View of Wikipedia: Talk 1/17/08 Wikipedia Visualization - Research at Indiana University Feature Visualizing Trends in Wikipedia
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map
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science
featured