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Rainforest Cooperative Research Centre
The Rainforest Cooperative Research Centre (CRC) works "to support the sustainable use, management and conservation of Australia's tropical rainforests through world-class research, training and technology transfer." The eight Rainforest CRC research programs include Functional Ecology and Global Change, Canopy Processes and Dynamics, Restoration Ecology and Farm Forestry, and Aboriginal Collaboration and Capacity-building in Research. In addition to providing information about the research acti
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NASA Tech Briefs: Engineering Solutions for Design and Manufacturing
NASA Tech Briefs is a monthly magazine that summarizes technologies developed through NASA research and their commercial applications. Free of charge, the magazine's Web site has much of the information that is published in print, while also offering an easy-to-navigate interface. The Tech Brief Library is an archive that dates back four years in twelve different categories, ranging from mechanics to software. The Technical Support Packages have even more detailed information in downloadable Ado
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World Soil Resources Map Index
From the US Department of Agriculture's office of Natural Resources Conservation Service, the World Soil Resources Map-Index Web site contains nineteen global maps as well as several regional and country maps related to soil. The global maps include such topics as Global Soil Regions, Soil Temperature Regimes, Water Holding Capacity, and Wind Erosion; the regional maps contain information from Afghanistan, Africa, Albania, Lithuania, and Indonesia. Each map contains information on its specificat
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Earth Observatory: Melting Snows of Kilimanjaro
Satellite photos of Mt. Kilimanjaro have become recently available from NASA's Earth Observatory, a "freely-accessible publication on the Internet where the public can obtain new satellite imagery and scientific information about our home planet." Taken in 1993 and again in 2000, these photos chronicle the dramatic disappearance of Kilimanjaro's glacial ice cap, a sensitive indicator of climate change that some scientists believe may vanish altogether by 2015. The Web site provides links to othe
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National Diatom Database
Single-celled diatoms are "powerful indicators of environmental conditions as they respond quickly to environmental changes, and are widely utilized in stratigraphic investigations." The Geological Survey of Canada's National Diatom Database contains two components, the first of which includes about 5,000 diatom samples, their description, and precise geographic location. The second has 1,500 entries that give "information on the environmental and ecological tolerance of individual diatom specie
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National Coal Resource Assessment
The National Coal Resource Assessment (NCRA) is a project of the US Geological Survey Energy Program. The project's homepage has lots of information and documents about the five main regions that were the focus of the study. Many professional papers, executive summaries, and factsheets are free for download. There are area maps of each region, as well as photographs that show current and historical views of mining practices. The Mining Info/Videos section has a link to an interesting paper -- Su
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Grothendieck Circle
This is the website for a long-term project called the Grothendieck Circle which aims to make publicly available (and in some cases translate) the material written by and about mathematician Alexandre Grothendieck. They also hope to provide biographical material on Grothendieck's life and his origins. As of this report they have posted several of his writings along with other online resources of his work. Given that many of his texts are unpublished or are out-of-print, the collection is one-of-
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Condor: High Throughput Computing
Condor is a popular software tool developed by the University of Wisconsin at Madison Computer Sciences Department. It is a type of batch system that distributes computationally intensive jobs to multiple workstations, thereby creating a grid-style environment and speeding the processing time. Universities and other research institutions can download Condor at no charge, provided they agree to the license terms. The software can be installed on UNIX or Windows machines. Full documentation is giv
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Fibre Optics Technology
As part of the Flexible Learning on the Internet initiative, this Web page gives a very descript overview of fiber optics technology. The site covers everything from fiber optics manufacturing to its technological capabilities. Several basic equations that govern fiber optics properties and operation are mentioned, but the material is not overly mathematical. It explains how light travels through the cable as a signal and how a fiber's structure effects the propagation of light. Three video clip
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Desert Plants and Wildflowers
For those interested in the types of plants found in the desert ecosystem, this Web page from the online magazine DesertUSA.com will be a useful guide. Photos and descriptive features of several desert plants are provided in an alphabetical index or can be found through the online field guide organized by flower color. An interesting section also focuses on the types of adaptations that allow plant species to survive in harsh desert conditions. The Desert Plants and Wildflowers section is just o
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Collaborative Projects
The Center for Improved Engineering and Science Education (CIESE) provides these collaborative projects to be used in classrooms this fall. Many of the projects have a life science focus such as Human Genetics, Square of Life, and Bucket Buddies. Each project offers the opportunity for students to collect real life data to share online with their peers. The presentation of projects is teacher friendly, with start and end dates for each semester and the appropriate grade level available on the ma
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Home Power Magazine
Home Power Magazine has been a resource for "home-scale renewable energy and sustainable living solutions" since 1987. Articles from the current issue of the magazine are available to download free of charge on this website. Some older articles are also posted in the Downloads section. For visitors wanting to find out what back issue to purchase, the HP archive includes a search function and purchasing information. Topics addressed include solar, wind, and microhydro electricity, home-energy eff
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Magplane: Transportation for the Information Age
The Magplane concept involves electromagnetically levitated vehicles designed for fast intra-city travel. This is in contrast to most other systems that focus on intercity travel; the goal of the Magplane system is to connect suburbs and locations up to 250 miles from a central metropolitan area, with travel times of about an hour or less. The Magplane home page offers many details of the system's design and operation. Five technical papers are also presented, which describe some of the engineer
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Come Grow With Us
This is an online collaborative project from the Lakeland Central School District that allows students to observe the process of a seed becoming a plant, collect data, and communicate results with other participating classrooms. Teachers can register their students to participate in the activity this fall, or simply use the lesson plans independently. The site is well organized, provides information in a simple format, and outlines the educational standards addressed by the project.
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The Child Care Nutrition Resource System
The Child Care Nutrition Resource System is developed by the University of Maryland's Department of Nutrition and Food Science and the USDA National Agricultural Library's Food and Nutrition Information Center. The Resource System is geared towards childcare providers who participate in USDA nutrition programs, but others interested in children's nutrition will find this website useful as well. Notably, the website serves as a portal to many helpful resources from a variety of different universi
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LHS Interactive Showcase
The Lawrence Hall of Science of the University of California Berkeley maintains the Interactive Showcase Web site. Eleven interactive Shockwave activities are presented based on various science themes. One called Variables allows users to change a human cannonballer's weight, angle of flight, the gun powder amount, and wind direction and speed with the goal of getting him to land in a net. Others deal with space flight, auto fuel efficiency, the human body, ideas and inventions, and more. Althou
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Igneous, Metamorphic, and Sedimentary Rock Info
Igneous, Metamorphic, and Sedimentary Rock Info, is part of the University of British Columbia Introduction to Petrology course Web site. Visitors can learn the basics of petrology, and the specifics about each individual rock type. For example, the sedimentary rock page gives definitions, normal constituents, limestone and dolostone facts, and siliciclastic rock information. One of the highlights of the site lets users go through the process of rock classification by determining its grain size,
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Parkinson Disease - Cranial Nerves Exam - Trigeminal (CN V) Nerves Sub-exam - Patient 4
This 76-year-old man developed tremor of his right arm and leg 15 years ago. It has increased in severity over the years. A shaking right hand affects his writing, dressing and drinking. Occasional drooling, difficulty rolling over in bed and a soft voice at times are also issues. The tremor has affected his writing and he has mild difficulty with buttons and zippers. He spills when he uses his right hand to drink. He has occasional drooling and slight difficulty rolling over in bed. His voice
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Dams
National Geographic's Dams Web site offers an interactive investigation into the good and bad impacts of dam construction. Visitors choose to view a river system before, during, or after a dam is built. Then at each time interval they can click on various sections of the river and read a short description of what is happening there. For example, after the dam is built, the reservoir that is created upstream causes several hydrological problems such as loss of water from evaporation. Although the
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Site Libre Savoirs: Mécanique des milieux continus
Domaine: Science des matériaux, mécanique, génie mécanique
L\'enseignement présente les concepts fondamentaux de la Mécanique des milieux continus qui sont mis en oeuvre sur des exemples simples en Mécanique des fluides et en Mécanique des solides. La démarche se concentre sur les milieux continus tridimensionnels et sur les notions de contraintes et de déformations, présentées en quatre étapes :

  • la modélisation macroscopique des milieux continus et de leur mouveme
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