8.1 Introduction One type of data model is an entity–relationship data model. Experience has shown that data can be best described by relationships between entities. An entity is anything of interest about which data is recorded, such as roads, weather stations, trucks and weather station readings in the IceBreaker project in the book MRP. In general, there will be many relationships (or associations) linking the entities. A trivial example is the fact that a given weather reading
One type of data model is an entity–relationship data model.
Experience has shown that data can be best described by relationships between entities. An entity is anything of interest about which data is recorded, such as roads, weather stations, trucks and weather station readings in the IceBreaker project in the book MRP. In general, there will be many relationships (or associations) linking the entities. A trivial example is the fact that a given weather reading
Nathan Glazer on democracy and diversity
Harvard sociologist and noted public intellectual, Nathan Glazer, presents the 2009 Seymour Martin Lipset Lecture entitled Democracy and Diversity: Dealing with Deep Divides.
2.1.1 Aims The aims of these recordings, in which Sorley MacLean is interviewed by Iain Crichton-Smith, are to: (a) help you to sense the power of MacLean's poetry in its original Gaelic; (b) assist your understanding of the English texts of the poems, translated by MacLean himself.
The aims of these recordings, in which Sorley MacLean is interviewed by Iain Crichton-Smith, are to:
(a) help you to sense the power of MacLean's poetry in its original Gaelic;
(b) assist your understanding of the English texts of the poems, translated by MacLean himself.
Lawrence Bailey - Market Research Valedictory Lecture - slides (as PDF)
A pdf of the slides used in Lawrence Bailey's guest lecture on Market Segmentation, Qualitative Research and Conversations Across the Garden Wall at Leeds Metropolitan University on 27 January 2011.
Physics Games: Liquid Crystals
Play a game and find out about a Nobel Prize awarded discovery or work! A liquid crystal is a substance that flows like a liquid but maintains some of the ordered structure characteristic of crystals. In the 1960s, a French theoretical physicist, Pierre-Gilles de Gennes turned his interest to liquid crystals and soon found fascinating analogies between liquid crystals and superconductors as well as magnetic materials. His work would later be rewarded with the Nobel Prize in Physics 1991. Today,
Brighten Up the Classroom
provides papers on the aurora and ionosphere, scales for measuring space weather, and a textbook for high school teachers and advanced students -- Solar Physics and Terrestrial Effects. The textbook examines a range of topics: the evolution and structure of the sun, sunspots and solar flares, the corona and chromosphere, solar-terrestrial interactions, building a spectroscope, measuring the solar constant, and seeing at different wavelengths.
Iconic Ming Tomb
Legendary in Chinese history, General Zu Dashou was celebrated for his defense of the Ming dynasty against the Manchu invasion. The Tomb of General Zu Dashou (Ming Tomb) now stands in the Gallery of Chinese Architecture and is one of the Museum's iconic objects.
Physics and Astronomy at Valpo
This video provides an inside look at the Department of Physics and Astronomy at Valparaiso University, including its resources and students.
The effects of the Post-War era on Downtown Los Angeles and its surroundings.
Students will study the negative effects of the Post War era on downtown Los Angeles. Specifically, the students will study the negative impact of the "white flight" from the city into the suburbs by Anglo Angelinos. The students will create a before and after poster of Downtown Los Angeles and the urban area (to be presented to the class) with information about historical places or people, found on the ISLA website. The focus of the downtown LA, comparison will be on the changing face of the ar
Advanced semiconductor devices are a new source of energy for the 21st century, delivering electricity directly from sunlight. Suitable semiconductor materials, device physics, and fabrication technologies for solar cells are presented in this course. The guidelines for design of a complete solar cell system for household application are explained. Cost aspects, market development, and the application areas of solar cells are presented.
Physics to Go
Physics to Go is a collection of websites where you can learn physics on your own, through games, webcasts, and online exhibits and activities. Also included are physics on the road programs, which bring demonstration shows, and in some cases hands-on activities, to you, the audience. To find the resources you want, you can browse the collection and search our database by content topic, resource type, and grade level. We encourage your involvement in Physics To Go. Once you have registered and
Accuracy of Series Approximations
In physics and mathematics, series expansions to approximate functions are often used because using the exact solution is either impossible or involves unnecessary complicated calculations. This Demonstration shows accuracy for a series of expansions and how adding terms increases that accuracy moving away from the origin.
This course provides a good overall understanding of how to manage projects. The course includes an overview of the Project Management Body of Knowledge (PMBOK) developed by the Project Management Institute. The course also includes a quick outline on Earned Value Management and touches on a few advanced topics such as Enterprise Architecture. Level: Introduction - No prior knowledge is required; however some business experience will help in understanding some of the concepts. Recommended for 2.
Fundamentals of Die Casting Design
This book describes the fundamentals of design of the die casting process and die mold/runner. It is intended for people who have at least some knowledge of the basics of fundamental science, such calculus, physics etc. This book will benefit the die casting engineer (the project and process engineers) as well as managers and anyone else who deals with the die casting operations will find this information useful.
Techniek op school : De Regenboog Zingem Dit leermiddel compileert het engagement van één van de pilootscholen van het voormalige TOS-21 project en wil hiermee Vlaamse scholen inspireren om binnen het kader van STEM techniek op school te …
Dit leermiddel compileert het engagement van één van de pilootscholen van het voormalige TOS-21 project en wil hiermee Vlaamse scholen inspireren om binnen het kader van STEM techniek op school te …
The UM Department of Physics and Astronomy is hosting a series of open house events at the Kennon Observatory on campus. Admission to the events is free, and children are welcome. Events this fall are set for 6 p.m. on Nov. 15 and 5:30 p.m. on Dec. 10. For more information, email email@example.com.
The Spotlight - BioPhysics: A Tale of Two Sciences
Features an interview with Cecile Fradin (Canada Research Chair in Molecular Biophysics) who holds an appointment in both the Department of Physics & Astronomy and the Department of Biochemistry and Biomedical Sciences at McMaster University. Also includes interviews with graduate and undergraduate students working in the BioPhysics Lab.
The Great Magnet, the Earth
This site provides a non-mathematical introduction to the magnetism of the Earth, the Sun, the planets and their environments, following a historical thread. In 1600, four hundred years ago William Gilbert, later physician to Queen Elizabeth I of England, published his great study of magnetism, "De Magnete"--"On the Magnet". It gave the first rational explanation to the mysterious ability of the compass needle to point north-south: the Earth itself was magnetic. "De Magnete" opened the era of mo
Staying in the Employment Game: Part 1
Experts from the University of Washington and throughout the Puget Sound gather to offer input and insight into employment challenges for people with MS. Learn when to disclose your disease to an employer, how to arrange for accommodations in the office, your legal rights and more. Featured panel members will include Ray Heacox, president and general manager of Belo Seattle, KING/KONG and Northwest Cable News; lawyer Andrea Brenneke of MacDonald Hoague & Bayless; Dr. Kurt Johnson of UW Rehab
22.033 Nuclear Systems Design Project (MIT)
Group design project involving integration of nuclear physics, particle transport, control, heat transfer, safety, instrumentation, materials, environmental impact, and economic optimization. Provides students with opportunity to synthesize knowledge acquired in nuclear and non-nuclear subjects and apply this knowledge to practical problems of current interest in nuclear applications design. Past projects have included using a fusion reactor for transmutation of nuclear waste, design and develop