Geometric Modeling of Solid Objects by Using a Face Adjacency Graph Representation
A relational graph structure based on a boundary representation of solid objects is described. In this structure, called Face Adjacency Graph, nodes represent object faces, whereas edges and vertices are encoded into arcs and hyperarcs. Based on the face adjacency graph, the authors define a set of primitive face-oriented Euler operators, and a set of macro operators for face manipulation, which allow a compact definition and an efficient updating of solid objects. The authors briefly describe a
Author(s): Ansaldi, Silvia, De Floriani, Leila and Falcidien

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Does Investing in Cutting-edge Tech Attract Better Workers?
Recent Wharton research examines the shifting priorities of the tech labor market and its implications for workers – and for other industries.
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2.2 Economic valuation: towards ecological economics

The blue whale could have supplied indefinitely a sustainable yield of 6000 individuals a year.

This is one of the earliest references to sustainability in the literature, taken from the 1971 edition of the science journal Nature (cited in Senge et al., 2006, p. 45). Here, the blue whale is given instrumental value – a means of measuring not the survival of the blue whale for its intrinsic v
Author(s): The Open University

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Preface
Openstax Basic Math

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2.4 Worlds in motion: the importance of flows

‘The sea had welled up suddenly through thousands of tiny holes in this atoll's bedrock of coral.’ Do you recall this passage in Lynas's (2003) account of his first days on Tuvalu in Reading 1A? For me, this gives an impression of the islands being quite literally porous, a solid ground that reveals itself, now and again, to be not so solid after all. Lynas offers this particularly striking example of the island's openness to the world around it as evidence of a growing vulnerability that
Author(s): The Open University

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3.3 Deciding what to ask for

What you ask for will very largely determine what you receive. You are therefore faced with a crucial but complicated set of judgements and choices in translating your overall requirements into suitable ‘ask size’ chunks. Your global requirement for support has to be refined into a range of specific requests which it will be feasible and appropriate to direct to the particular cohort(s) of donors and supporters you seek to involve.

Author(s): The Open University

"DMC Upside": GIS Day
Del Mar College, Texas A&M University-Corpus Christi, Texas A&M University-Kingsville and the National Geospatial Technology Center of Excellence at Del Mar College hosted "Discovering the World Through GIS" on Nov. 15, 2012. The local event is part of the National Geographic Society's Geography Awareness Week (Nov. 12-18), which includes GIS Day. This segment of the "DMC Upside" television program was featured in the December 2012 edition, which airs on cable channel 19 in Corpus Christi. The
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Protecting Earth from Asteroid Impacts
A massive asteroid impact is thought to be responsible for the extinction of non-avian dinosaurs 65 million years ago. Impacts that destructive are rare, but astronomers have identified thousands of asteroids close enough to Earth to be potentially hazardous. A new plan to coordinate asteroid observations worldwide will help track big objects orbiting close to Earth and determine if they pose a threat. Science Bulletins is a production of the National Center for Science Literacy, Education, a
Author(s): American Museum of Natural History

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Gettysburg Battle Strategy
In the small Pennsylvania town of Gettysburg, 3,000 Union soldiers prepare to face the onslaught of 60,000 advancing Confederate soldiers. In this video clip, learn about the strategy of the two conflicting armies in this battle. (2:53)
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UW Boxing Club
The UW Boxing Club has made a name for itself by taking on some of the toughest teams in college sports. Meet coach Christopher Mendez and his determined and dedicated team of student athletes. Christopher Mendez, head coach, UW Boxing Club 04/26/2015 uwtv.org/uw360
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Architects Early Sketching on Computer Using Multimedia
This paper presents a development work which aims at practical applications of ideas built on experiences in practise and education and the theoretical development in the BAS.CAAD project. The important difference between BAS.CAAD and CAD programs of today is the possibility to handle user organisation, building design and site in the same program. This means that design today has to be done in at least 3 separate programs with different ways of defining objects. It is then a computer technical
Author(s): Af Klercker, Jonas

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Lesson 07 - One Minute Romanian
In lesson 7 of One Minute Romanian you will learn to say that it's nice to meet someone in Romanian. Remember - even a few phrases of a language can help you make friends and enjoy travel more. Find out more about One Minute Romanian at our website - http://www.oneminutelanguages.com. One Minute Romanian is brought to you by the Radio Lingua Network and is ©Copyright 2008.Author(s): No creator set

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Matt Grocoff: "10,000 Years of Home Comfort"
Matt Grocoff is the founding principal of the THRIVE Net Zero Energy Consulting Collaborative. He has America's oldest and Michigan's first net-zero energy home. He explains how he did it, and shares tips to help you follow a similar path.
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References

Anon (2002) 'The Windicator', Windpower Monthly, January, p. 50.
Blake, William (1994) The Marriage of Heaven and Hell, Dover Publications.
Boyle, G. (1966, 2003) Renewable Energy, Oxford, Oxford University Press in association with the Open University.
BP (2002) BP Statistical Review of World Energy [online
Author(s): The Open University

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4.4 The ongoing story

At the time of writing (2006), the Golden Rice tale is an unfinished story. Some of the developments of the last five years are summarised here.

One area of ongoing scientific dispute is the question of whether the enriched rice can contribute significantly to the alleviation of vitamin A deficiency. We have seen that Shiva estimated that at best 100 g of rice a day would provide 4.4% of the recommended daily allowance. More sophisticated theoretical models, published since that time, h
Author(s): The Open University

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Video link (see supported sites below). Please use the original link, not the shortcut, e.g. www.youtube.com/watch?v=abcde