No Valve in Vain
In this activity, students will design and create their own heart valves out of a variety of materials given to them, including: waterproof tape, plastic tubing, flexible plastic sheets, foam sheets, scissors, clay, etc. This activity will not only test their understanding of how a one-way valve works and its purpose, but will also allow them a chance to think outside of the box and practice engineering problem-solving.
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Exercice 10 (Arithmétique dans Z) [00303]

Exo7. Exercices de mathématiques pour les étudiants.
Retrouvez la correction écrite sur http://exo7.emath.fr

Bonus (à 2'15'') : vrai ou faux ?


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Exercice 15 (Arithmétique dans Z) [00349]

Exo7. Exercices de mathématiques pour les étudiants.
Retrouvez la correction écrite sur http://exo7.emath.fr

Nombres premiers de la forme a^n+1.
Bonus (à 3'49'') : nombres de Fermat, exercice.


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Barack Obama wint de verkiezingen in de VS in 2008, zijn toespraak
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7.9 Putting it all together
What is your experience of work and what did you learn from this experience? This unit will enable you to reflect upon what you have learned from work and support you in improving how you learn at work. It will encourage you to think critically about work-based learning and review your own professional knowledge and skills.
Author(s): The Open University

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Except for third party materials and otherwise stated (see http://www.open.ac.uk/conditions terms and conditions), this content is made available under a http://creativecommons.org/licenses/by-nc-sa/2

Spastic Paraplegia - Reflexes Exam - Muscle Stretch Sub-exam - Patient 5
This video features a 54-year-old white male with a history of spastic paraplegia (diagnosed in 1994) and no previous history of heart disease or cardiac workup. He presented to the Emergency Room complaining of three days on-and-off retrosternal chest pain. Clinical history: Patient presented to the ER complaining of three days on-and-off retrosternal chest pain, rated 3/10, lasting approximately 30 minutes, occurring multiple times daily at rest or during activity. The first episode occurred t
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Spastic Paraplegia - Sensory Exam - Superficial Sub-exam - Patient 5
This video features a 54-year-old white male with a history of spastic paraplegia (diagnosed in 1994) and no previous history of heart disease or cardiac workup. He presented to the Emergency Room complaining of three days on-and-off retrosternal chest pain. Patient presented to the ER complaining of three days on-and-off retrosternal chest pain, rated 3/10, lasting approximately 30 minutes, occurring multiple times daily at rest or during activity. The first episode occurred three days before
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Florida's Fragile Reefs: What's Happening to this Underwater World?
This BioBulletin Web site takes an in-depth look at coral reefs and how they are affected by human activities -- everything from agricultural pollution and ship grounding to snorkeling and overfishing. With Florida's fragile reefs as the backdrop, the site includes text, videos, photographs, and interviews with key scientists.
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Melting Glaciers: Clues to Climate Change
This interactive feature story is part of Science Bulletins, an innovative online and exhibition program that offers the public a window into the excitement of scientific discovery. Published in March 2005, this Earth Bulletin follows a team of glaciologists racing to core the world's largest tropical ice cap -- before global warming melts it away.
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Using composite materials to replace bone
In this podcast, Professor Chris Rudd, Dean of the faculty of Engineering at the University of Nottingham, describes his work with composite materials in the car industry and how it can be applied to the field of medicine. Traditionally, patients who have lost bone in an accident or have had bone removed due to cancer have had to endure two very long and very painful operations. One operation to attach steel plates to the bone, and a second operation once the bone has healed, to remove them. F
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"Understanding Lasers and Fiberoptics, Spring 2008"
"Lasers are essential to an incredibly large number of applications. Today, they are used in bar code readers, compact discs, medicine, communications, sensors, materials processing, computer printers, data processing, 3D-imaging, spectroscopy, navigation, non-destructive testing, chemical processing, color copiers, laser "shows", and in the military. There is hardly a field untouched by the laser. But what exactly is so unique about lasers that makes them so effective? This brief video course i
Author(s): Ezekiel, Shaoul

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The Story Keepers Bible Easter Story-Part 4 of 9
In part 4 of this animated Easter video, the story of Jesus' betrayal continues to be told. Jesus finds some of his disciples sleeping while He was praying in the garden. Ben and his friends are imprisoned for hiding Christians. This is a wonderful resource for teaching about the Easter story. Content is appropriate for elementary aged students. (6:59)
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Wow Wow Wubzy Sings The Different Song
Look in the Mirror and Love What You See! We're All Different People. You are special and we all agree. This is a cute song that will help teach that we are all different and that makes us special.  This is a great resource for a teachable moment in the classroom and/or for a group/individual guidance lesson on tolerance and kindness. Content is appropriate for early elementary (K-2). 
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The Spread of Religions
How do religions interact, adopt new ideas, and adapt to diverse cultures? As the missionaries, pilgrims, and converts of Buddhism, Christianity, and Islam moved around the world, the religions created change and were themselves changed. (28:35)
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Early Economies
How do societies assign value to land, labor, and material goods? Manorial economies in Japan and medieval Europe are contrasted with the tribute economy of the Inka, and the experience of dramatic economic change is illustrated by the commercial revolution in China. (28:35)
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Fats to Fuel - Partners Video Magazine
A Small Business Innovation Research grant results in technology that efficiently recycles industrial fats into useful biodiesel. Fats to Fuels is a segment from Partners Video Magazine's latest episode, Fueling America. To view the entire episode visit: http://www.csrees.usda.gov/newsroom/partners/partners.html
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End Sequence Profiling Computational Lab - Oliver Hampton
Computational laboratory: Starting from a set of breast cancer BACs (bacterial artificial chromosomes) End Sequence Profiling (ESP) is performed. ESP analysis sequences the ends of insert DNA in order to characterize genomic rearrangements that may be involved in breast cancer progression. In this study, genomic rearrangements are characterized from 100 breast cancer BACs and 10,000 Fosmids (derived from a pool of the 100 originating BAC) using ESP. Analysis and comparison of both BAC and Fosmid
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Dissection - 02 - intrinsic muscles of the back
Dissection - 02- intrinsic muscles of the back - vertebral column - spinal meninges - spinal cord WARNING! Not for the faint hearted!!
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Unique Species of Kentucky's Green River
This video from Kentucky's Last Great Places shows how the Green River has remained unusually clean and why it is home to several endangered aquatic species.
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