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Yeast Cells Respire, Too (But Not Like Me and You)
Students set up a simple way to indirectly observe and quantify the amount of respiration occurring in yeast-molasses cultures. Each student adds a small amount of baking yeast to a test tube filled with diluted molasses. A second, smaller test tube is then placed upside-down inside the solution. As the yeast cells respire, the carbon dioxide they produce is trapped inside the inverted test tube, producing a growing bubble of gas that is easily observed and measured. Students are presented with
Author(s): Engineering K-Ph.D. Program,

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Copyright 2011 - Engineering K-Ph.D. Program, Pratt School of Engineering, Duke University,http://www.teachengineering.org/policy_ipp.php

Spotlight on Ethel Brooks - War: Critical Perspectives
Has the "war on terror" affected your life? In the absence of military conscription, do United Statesmilitary operations inAfghanistan, Iraq, Somalia, or Guantanamo influence everyday life within our country? How are we to make sense of Humvees on the highway or camouflage gear as a fashion trend? Are there connections between genocide and gang membership, or between war and particular modes of labor and production, or between military bases and sexual violence? Does "homeland security" make you
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The Little Blue Devils
A Neighborhood Partnership program pairs Duke student coaches with youngsters ready to play ball. Learn more at http://community.duke.edu
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Oregon State Alums Changing the World
Several OSU alums talk about what they are doing now and how in their own way they are making the world a better place.
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Brian Serow wins the MIT Elevator Pitch Competition
This was Brian's one minute pitch to MIT affiliated entrepreneurs and venture capitalists in Seoul, South Korea during the MIT Elevator Pitch Competition. See E-net! for more info: http://www.elon.edu/e%2Dnet/Note.aspx?id=951583
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A Bengali quiz and a matching exercise: food
A Bengali quiz and a matching exercise: food.
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Wet Pennies
Students conduct a simple test to determine how many drops of each of three liquids can be placed on a penny before spilling over. The three liquids are water, rubbing alcohol, and vegetable oil; because of their different surface tensions, more water can be piled on top of a penny than either of the other two liquids. However, this is not the main point of the activity. Instead, students are asked to come up with an explanation for their observations about the different amounts of liquids a pen
Author(s): Engineering K-Ph.D. Program,

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Copyright 2011 - Engineering K-Ph.D. Program, Pratt School of Engineering, Duke University,http://www.teachengineering.org/policy_ipp.php

Balsa Towers
Students will build their own towers using some of the techniques they have learned. The materials will consist of balsa wood and glue. General guidelines are provided, but the students will have a lot of freedom with their design to encourage them to implement what they have learned about structural engineering.
Author(s): Techtronics Program,

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Copyright 2011 - Techtronics Program, Pratt School of Engineering, Duke University,http://www.teachengineering.org/policy_ipp.php

A Place in Space
The students will use a “real” 3D coordinate system. They will have 3 axes at right angles, and a plane (the XY plane) that will be able to slide up and down the Z axis. The students will then be given several coordinates and asked to find these points in space. They will also be asked to find the coordinates of the 8 corners of a box with given dimensions.
Author(s): Techtronics Program,

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Copyright 2011 - Techtronics Program, Pratt School of Engineering, Duke University,http://www.teachengineering.org/policy_ipp.php

Housing recovery years away -Shiller
Robert Shiller, noted Yale professor and co-founder of the S&P Case-Shiller Index, warns the housing market slump will likely continue for years to come.
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Thousands flee fighting in Ivory Coast
Thousands of West African nationals continued to flee Abidjan, Ivory Coast on Tuesday as heavy fighting continued in the capital city. Jon Decker reports.
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Kenwood House Concert Bowl J870307

KENWOOD HOUSE, London. Close up of the concert bowl at night with orchestra.


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Wine cooler depicting a Hanoverian Hussar N081110

APSLEY HOUSE, London. Wine cooler from the Duke of Wellington's Prussian Service, made in Berlin 1817-19. This was a gift to the Duke from the King of Prussia, and here depicts troops commanded by the Duke in France in 1815, in this case a Hanoverian Trooper, Regiment of Luneburg Hussars. WM959_1948.


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Ice pail depicting a Highlander with Spanish militia N081111

APSLEY HOUSE, London. Ice pail from the Duke of Wellington's Prussian Service, made in Berlin 1817-19. This was a gift to the Duke from the King of Prussia, and here depicts scenes from the Peninsular War. Here shown are a British Highlander (42nd Foot - Black Watch) and Spanish Miquelet (militia from Catalonia or Valencia). WM1057_1948.
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St Ives, Cornwall AA086596

ST IVES, Cornwall. A view looking across the harbour to St Ives from Smeaton's Pier, taken during the photographer's holiday to Cornwall. Photographed by John Gay, 1950.


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DAS Status Overview by Tim Hubbard
DAS Status Overview by Tim Hubbard given at the DAS workshop 2011 at Hinxton, Cambridge, UK
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Besoins et économie - Jean Gadrey

Une conférence de l'UTLS au Lycée

Besoins et économie par Jean Gadrey(économiste)

Lycée Diderot (62 Carvin)


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Community and Innovation: What's Our Secret Civic Sauce?
Eric Liu is the founder of the Guiding Lights Network (www.guidinglightsnetwork.com), as well as Bill Clinton's former speechwriter. He'll chat with Media Space host Hanson Hosein about his groundbreaking efforts to spark civic engagement and social change, with a unique focus on citizenship, mentorship and technology. He’ll answer what role community-building and leadership play in harnessing creative energy, and how we can keep pace with social and economic changes.
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Omtrek en oppervlakte van vlakke figuren : Formules
rechthoek.jpg

Alle formules om de omtrek en oppervlakte te berekenen van een vierkant, rechthoek, parallellogram, ruit en driehoek in een overzichtelijk schema.

Bij deze presentatie hoort ook een werkblad en er is een correctiesleutel …


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