Occasionally referred to as audio indexing, audio mining is a computerized task involving the processing of an audio file, extracting the dialog and creating a textual transcript, and searching the transcript for certain words or phrases. Considering the amount of audio content on the Internet and other sources, it is clear that audio mining is a growing technology.To get an idea of what audio mining is and how it can be used, people can read this article from the Cutter Consortium (1). It lists
As part of the CATlab project at the University of New Hampshire, Project54 is an integrated system of electronic devices that allows police officers "to interact with equipment such as lights and siren, radar, etc. using speech input and feedback." This website offers a detailed description of the system and its purpose, an image gallery, and several publications and project proposals. Visitors to the site who complete a brief registration can download an interactive demonstration of the Projec
The Interactive Plasma Physics Education Experience
As part of Princeton University's Plasma Physics Laboratory, the Interactive Plasma Physics Education Experience Web site contains interactive plasma physics topics, ranging from electricity and magnetism to energy and fusion. Although some of the activities have difficulty running on old browsers and Macintosh computers, the interactive lessons give students a fun and engaging way to explore physics topics.
White Paper: Auto-ID Based Control
At its most basic level, auto-ID technology is similar to the UPC bar code. However, it incorporates microchips, wireless communications, and the Internet to make all the information pertaining to individual products instantly accessible. This white paper, distributed May 1, 2002, discusses "the role of control systems in Auto-ID developments." It starts with an overview of the technology, including a brief description of the Electronic Product Code and its use. The paper then goes into the meth
Alaska Fisheries Science Center: Understanding Fish Bycatch Discard and Escapee Mortality
The Alaska Fisheries Science Center's (AFSC) latest Quarterly Research Report features research on fish bycatch discard and escapee mortality conducted by the AFSC. Readers will find a summary article for the report on the main Web page. The entire 9-page report details "systematic bycatch research conducted over the past 10 years in the laboratory of the AFSC's Fisheries Behavioral Ecology Group," and may be downloaded as a PDF document. The Web site also contains links to detailed reports from
Digital Signal Processing Tools
A collection of seven Java applets and associated tutorials are available on this site from the Signals and Systems Group at the University of Edinburgh. The tools illustrate various concepts of digital signal processing, like convolution, correlation, the Fourier transform, and discrete-time applications of each. Seven other applets that demonstrate more advanced concepts are also available, but no documentation or explanation accompanies them. A few conference publications and reports related
Intellimotion: California PATH's Quarterly Newsletter
The California Partners for Advanced Transit and Highways (PATH) researches methods for increasing highway safety, reducing congestion, and minimizing pollution and energy consumption. Intellimotion is one of its publications that highlights some of the current projects. Although it is labeled as a quarterly newsletter, Intellimotion is released on a very irregular basis. The 2002 issue covers several stories, including a project that makes vehicle navigation with the Global Positioning System e
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
Howard Hughes Medical Institute 2002 Holiday Lectures on Science
The theme of this year's holiday lecture series from the Howard Hughes Medical Center is Scanning Life's Matrix, which offers a detailed look at genes and genomes. Educators interested in using these free Web casts in the classroom must fill out an electronic registration form. There are four scheduled lectures (airing December 5th and 6th, 2002) titled "Reading Genes and Genomes," "Probing Genes and Genomes," "Human Genomics: A New Guide for Medicine," and "Chemical Genomics: New Tools for Medi
Study of Menopausal Women with Heart Disease Finds No Benefit, Potential for Harm from Hormone Thera
This site describes a study sponsored by the National Heart, Lung, and Blood Institute, which found that postmenopausal women with heart disease did not benefit from high doses of antioxidants vitamins, whether alone or in combination with hormone replacement therapy. In fact, researchers found both treatments to be potentially harmful.
IBM is one of the most recognizable names in the computer industry, with a history that spans over a century. The IBM Archives is an online repository of information that tells the story of how the company began and how it has evolved. Possibly the best way to learn about IBM's roots is to browse the archive's main exhibit, which takes the user on a year-by-year tour of inventions and major business dealings since 1900. A collection of historic documents is also offered, describing landmark comp
Teach R Kids Math: Math for Elementary School Kids
Teach R Kids Math is a Web site with a large assortment of interactive lessons that demonstrate basic mathematical concepts. The material ranges from basic counting for preschoolers to more advanced topics for elementary school students. Online worksheets help children practice multiplication and division, rounding, fractions, number sequences, and much more. Some of the activities are timed, which allows the child to see his/her improvement. The site "has been designed by children and adults,"
NOAA Weather Education
NOAA offers links to a variety of educational materials on meteorology, hydrology, climatology, and other weather-related fields for children, teens, and young adults at this website. Students can find websites where they can learn about hurricanes, storms, tornadoes, and floods through interactive games. Teachers can find lightning safety presentations, satellite images, lightning photos, and glossaries. The website offers materials on weather related careers, degree programs, distance learning
USA Today - How Weather Works
This is a very extensive site, providing backround information about virtually all aspects of weather. Topics include: the role of the sun; wind; storms and fronts; forms of water; flood and droughts; snow and ice; lightning, thunderstorms and tornadoes; hurricanes; the sky; weather prediction; climate change; weather extremes; and a bibliography of other resources. Within each topic are several brief articles about a specific weather-related phenomena, typically accompanied by excellent illustr
Maximize the area of a rectangle with a given perimeter. Vary the perimeter, base, and height of the rectangle and examine changes to the graph of the area.
In this workshop session, elementary and middle school teachers explore scale drawing, similar triangles, and trigonometry in terms of ratios and proportion. Besides explanations and real-world problems, the unit includes video segments that show teachers investigating problems of similarity. To understand the ratios that underlie trigonometry, participants use an interactive activity provided online. This is session 8 of Learning Math: Geometry, a free online course.
PET (Positron Emission Tomography) scans
Here is an overview of PET (polarized emission tomography), a brain scanning technique. The web page offers a description of how PET scans are conducted and an example of the kind of image they can produce. The science behind PET's ability to document levels of brain activity is also briefly addressed. As part of a set of materials about brain scanning technologies, this overview also points out how PET differs from earlier types of brain scans. Copyright 2005 Eisenhower National Clearinghouse
National Geophysical Data Center: Relief Globe Slides
This set of 20 slides contains 14 global views of the Earth in full color shaded relief, showing land and undersea topography. The planet is seen from vantage points over the poles and each major ocean and land mass. Also included are a rectangular Mercator projection view of the whole Earth, as well as displays of crustal plates and their relation to world seismic activity. The images are computer-generated from a digital database of oceanic bathymetry and land topography.
Science Sampler : Reading science
Nonfiction books have the power to excite students about learning and fuel their desire to know more about a topic or person. Using a variety of books can differentiate instruction and provide suitable reading to students at all levels and for almost any interest. This article provides a list of recommended reading and some lesson ideas that correspond with the material.
Science News For Kids
This resource is meant to enhance the usefulness of Science News in the middle-school classroom and offer recreational reading and activities for students interested in science. It is comprised of six zones: a weekly brainteaser for those who enjoy solving and inventing puzzles, entertaining science-fiction composition exercises for those interested in writing, and weekly science fair profiles and tips. The GameZone contains a small selection of logic and memory games, implemented as Java applet