Maal- en deeltafel van twee, drie, vier, vijf en tien Met dit werkbad kunnen leerlingen de maal- en deeltafel van twee, drie, vier, vijf en tien inoefenen.
Met dit werkbad kunnen leerlingen de maal- en deeltafel van twee, drie, vier, vijf en tien inoefenen.
国際大学院コースで学ぶ学生を対象として，無線通信システムの諸技術を学ぶ。具体的内容は，波動伝搬，散乱，フェージング，アンテナ，時空間信号処理，変復調方式，符号化，等化技術，高周波デバイス，高周波回路設計，多重化方式，将来動向などである。講義は英語で行う。 Wireless Communication Systems, Wave propagation, reflection, refraction and diffraction, Stochastic Behavior of wire
Centers for Disease Control: Severe Acute Respiratory Syndrome
Visitors to this Web site from the Centers for Disease Control (CDC) will find a current and reliable source of information about Severe Acute Respiratory Syndrome (SARS). The FAQs section offers a general overview of the disease and recent outbreak -- a good starting point for finding the facts behind the headline news. The site also offers recent CDC guidelines and recommendations geared toward medical professionals, travel advisories and related concerns, and links to World Health Organizatio
Global Climate Change Student Information Guide
The Global Climate Change Student Information Guide, available through Manchester Metropolitan University, presents "a comprehensive work for geology, geography, and environmental science students studying climate change." This online text offers detailed chapters covering the causes of climate change, the empirical study of climate, climate modeling, paleoclimatic change, and contemporary climate change. While topics covered lean necessarily toward the earth sciences rather than life sciences,
Broad Institute: Resources for the Scientific Community
From the Broad Institute--a research alliance of Harvard University, the Whitehead Institute for Biomedical Research, and the Massachusetts Institute of Technology--this website makes a variety of genomic resources publicly available to researchers. The site links to Genome Sequence Databases under the following categories: Fungal, Vertebrate Lineage, Bacterium, Mammalian, and Archaebacterium. Examples of software available through the site include Locusview 2.0: A Program for Generating Images
The University of Tennessee at Martin has one of the most expansive sites devoted to prime numbers and their significance. This page "is an exciting collection of curiosities, wonders and trivia related to prime numbers." As of December 2002, there are nearly 2,000 numbers with at least one curio. Some of the smallest numbers are interesting to peruse; however, reading every curio or researching other numbers to submit to the database is probably left to the mathematicians. One thing is certain,
GSC-IS Version 2.0
The Government Smart Card-Interoperability Specification (GSC-IS) was released June 27, 2002. Developed in part by the National Institute of Standards and Technology, it provides an overview of the GSC architecture and discusses "solutions to a number of the interoperability problems associated with smart card technology." The main sections of the document offer details about the GSC architectural model, access control model, basic services interface, virtual card edge interface, card capabiliti
PBS TeacherSource Classroom Currents
PBS offers this online set of lesson plans and other learning resources to help students explore the world's oceans for the December 2002 edition. The Web site provides ten interdisciplinary activities for grades K-12. The activities cover a broad range of fields, including history, poetry and literature, economics, and of course the sciences. The activities' titles Weird Sea Creatures (grades K-6 with modification) and Ocean Adaptation Wheels (grades 2-6) each have a life sciences focus. The si
JAMSTEC Data Site
From the Japan Marine Science and Technology Center (JAMSTEC) comes the JAMSTEC Data Site. Visitors can access several databases and data sites including the Deep Seafloor Image Database, Japan ARGO Delayed-mode Database, the J-CAD Compact Arctic Drifter, MIRAI Data Web, Research Results Report System, Submarine Cable Data Center, and the TRITON Buoy Data Web site. All provide marine science related information from Japan and around the world.
Military equipment often requires significant amounts of electrical power, and it is important for power supplies to be portable and to have large capacities. The Defense Advanced Research Projects Agency realizes this need for efficient power sources, so it is investigating alternatives to conventional batteries. High energy fuels are the primary focus of the Palm Power project. This Web site discusses the details and goals of the project in introductory sections. More specific information can
Easy-to-read Health Information
The National Network of Libraries of Medicine offers this collection of links to easy-to-read Web sites for health-related information. Topics cover everything from diabetes to wound dressing to environmental health and safety. The site appears as an extensive list of links organized by topic. A main menu at the top of the page allows users to quickly jump to subjects of interest. The links lead to pages from National Institutes of Health Web sites and other authoritative sources, and are select
Chipworks: Silicon Art
Chipworks is a "company that analyzes the circuitry and physical composition of semiconductors, photonics and electronic systems." During the company's work, some chips were found to have microscopic artwork hidden in the silicon. Although these features do not change a chip's performance, they simply express the creativity of the designers. Three large galleries of images are presented on this Web site, some with magnifications up to 500 times. Each picture is accompanied by a short description
International Design Contest 2002
The 2002 International Design Contest, held at the Massachusetts Institute of Technology, concluded on August 16. All information pertaining to the robot building competition is posted on this Web site. A standard component kit was given to each team to design their robots. An inventory of this kit, CAD models of the parts, and an overview of the control systems are given online. Many video clips can be viewed, including one that shows "the entire contest from beginning to end." Other material n
Final Report of the Commission on the Future of the U.S. Aerospace Industry
Since its first meeting in November 2001, the Commission on the Future of the US Aerospace Industry has worked to prepare this final report on the industry, its position in the global economy, and its application to national security. The report was released on November 18, 2002, and can be viewed in its entirety at this Web site, along with a fifteen minute video presentation from the commission's chairman. The 300+ page report is divided into nine chapters, each with a central theme and series
What is Climate Change?
This site is offered by Canada's Natural Resources Department. The main page describes the basics of the phenomenon, while the links tell about the impact of climate change on health and safety, communities, land resources, water resources, and coastal regions. Although specific to Canadian regions, the site will give visitors from all over a good introduction to the potential problems of global warming.
Learning Technologies Project
The NASA Learning Technologies Project (LTP) showcases many initiatives that "incorporate NASA content with revolutionary technologies or innovative use of entrenched technologies to enhance education in the areas of math and science." The Education Resources section features three software titles that can be freely downloaded, mainly consisting of three-dimensional visualization activities for planets and the solar system. Extensive information about current projects under development is given,
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
Public Education Acid Rain Lesson Plan
Offered by The National Park Service Air Resources Division, this Web site includes a series of five 1-2 hour educational activities related to understanding acid rain and air quality for children grades six through eight. The very simply designed site includes lessons on: The pH scale; Understanding the difference between an acid and a base; Understanding what gases contribute to acid rain; How acid rain is measured and monitored in the US; and Understanding weather maps and the importance of s
National Marine Mammal Laboratory: Aerial and Land-based Surveys of Stellar Sea Lions
The National Marine Mammal Laboratory (NMML) conducts research on marine mammals for the National Marine Fisheries Service and the National Oceanic and Atmospheric Administration, with a particular focus on marine mammals in the Pacific Northwest and Alaska. This Web site contains a report on Stellar sea lion survey research -- part of NMML's Alaska Ecosystem Program. The report may be viewed online or downloaded as a PDF file. The site also includes links to other NMML Web pages for more inform
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