Monday, November 11, 2002

genes, neurons, internet: organizing principles of networks....blogrolls??? Blogroll analysts, there's a significant opportunity for cutting edge science here... To quote a former professor of mine, "interesting if true; interesting in any case" The quest for commonality. genes, neurons, internet: organizing principles of networks. How do 30,000 genes in our DNA work together to form a large part of who we are? How do one hundred billion neurons operate in our brain? The huge number of factors involved makes such complex networks hard to crack. Now, a study uncovers a strategy for finding the organizing principles of virtually any network ñ from neural networks to ecological food webs or the Internet.... more in [context weblog] [Seb's Open Research] The research in question is by Uri Alon of the Weizman institute.  A reprint of the October 25 2002 Science Article at http://www.weizmann.ac.il/mcb/UriAlon/Papers/networkMotifs/networkMotifs.pdf has the meat, including...   comments? [] 11:39:54 AM     Building A Community Wireless Network From Scratch New thread on Slashdot http://slashdot.org/article.pl?sid=02/11/05/0227236&;mode=thread&tid=95    "This summer I've been involved in a project to build a community-orientated wireless network in the city of Bristol, England. Recently I published an article (http://www.psand.net/clan/  ) describing what we have achieved so far, including some interesting thoughts on passive repeaters (http://mirror1.psand.net/clan/index.xhtml#passive ). There is a supporting site (http://flakey.info/ ) with detailed instructions on how to build antennae, and the main project web site is also available here. A bit of own trumpet blowing perhaps, but I think it'll be of interest to those readers involved in similar projects and be of some help to those thinking of starting their own." comments? [] 11:22:30 AM     do it yourself bluetooth  From http://www.circuitcellar.com/PSOC2002/winners/h9.htm by way of http://bluetooth.weblogs.com/ The Simple Wireless Bluetooth Mobile Phone Headset was built using a Bluetooth module and PSoC CY8C26443 microcontroller. Few other components are needed because of the PSoC microcontroller's beneficial internal peripherals. The other components used include: a 3.3-V power supply; 16-V, 47-µF electrolytic capacitor; two 300-W resistors; two SPST push-button switches; and two LEDs. The device consists of two units. One unit is worn by the user as the headset; the other unit is connected to the mobile phone via its handset interface connections. The Bluetooth module provides the wireless interface between the mobile phone and headset. The CY8C26443 controls this module via a UART interface running at 57.6 Kbps, 8 bits, 1 stop bit, and no parity. Another interface, from the Bluetooth module to the CY8C26443, enables voice data to be transmitted. see also Remote Human Health Monitoring System, and You Too Can Design with SoC A Design Challenge 2002 Primer by Jeff Bachiochi Jeff details working in the world of SoC. Anyone new the designing with SoC parts will walk away with enough insight to implement a SoC in their next project. Published April 2002 ó Read Article comments? [] 11:16:03 AM     Gadget Overload Relief in Sight. Technology called software defined radio, or SDR, could herald the development of new wireless devices that combine multiple applications into a single appliance. By Paul Boutin. [Wired News] comments? [] 11:00:37 AM

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