Cleaning a Personal Computer Keyboard
Learn from our expert some great techniques for cleaning your computer keyboard.
 
You need some electronic wipes, a can of air and a toothbrush to clean the keyboard.  This video takes you through the steps to be able to clean out your keyboard.

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Sights from Elon University's first snowfall this year.
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Model of the monoclinic ZrO2 unit cell
Rotating model of the monoclinic ZrO2 unit cell.
Author(s): DoITPoMS, University of Cambridge

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SEM image of open cell polyurethane foam
If a gas is injected into a liquid it forms a cellular foam structure. When a thermoset prepolymer of low viscosity is foamed, the polymer can drain from the cell walls (driven by surface tension) before it sets at the cell edges, leaving an open-celled foam. The cell edges have three concave sides, giving rise to the tri-cuspid cross section visible at the bottom of this image. The average co-ordination number for the nodes (where struts meet) is four, giving tetrahedral junctions.
Author(s): DoITPoMS, University of Cambridge,J A Curran, Depa

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Otis MFA Graphic Design Lecture 2011: Sibylle Hagmann
Award-winning font designer. After earning a BFA from the Basel School of Design in 1989, Sibylle Hagmann worked for the design firms Eclat and Zintzmeyer & Lux in Zurich, Switzerland. She pursued her interests in typography and type design from a different perspective by completing in 1996 a MFA at the California Institute of the Arts in Valencia, California. Since then she has worked as a designer and art director for institutional publications and taught typography at Art Center College of D
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HST.721 The Peripheral Auditory System (MIT)
In this course, experimental approaches to the study of hearing and deafness are presented through lectures, laboratory exercises and discussions of the primary literature on the auditory periphery. Topics include inner-ear development, functional anatomy of the inner ear, cochlear mechanics and micromechanics, mechano-electric transduction by hair cells, outer hair cells' electromotility and the cochlear amplifier, otoacoustic emissions, synaptic transmission, stimulus coding in auditory nerve
Author(s): Liberman, Charlie,Adams, Joe C.

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THE100 Television, Film & Theater Spring 2015 Session #08
with Naomi Buckley Appreciation of the performing arts of television, film and live theater through the viewing of films. www.YouTube.com/csuDHTV [Please Subscribe]
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Stem Cell Therapies are no More Drugs Than Soufflés are Fast Food
Stemcell discoveries make great news stories, but their actual translation into routine clinical practice is still a major hurdle. Is it reasonable to expect the big pharmaceutical companies to manufacture these living therapies or is the paradigm shift from today’s drugs to ‘living cells as therapies’ overwhelming? Would McDonald’s ever put delicate soufflés on their fast-food menus? This lecture will use examples from current cell and tissue-engineered clinical therapies to illustrate
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1.4 Coal-forming environments in the geological record

Figure 5 simplifies a typical vertical succession of sedimentary rocks found in many coalfields. The sequence from the base of the section upwards reveals the following:

  1. When a mire starts to form, the first plants take root in underlying clays or sands that form the soil. Their r
    Author(s): The Open University

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Learning outcomes

After studying this course, you should be able to:

  • develop an appreciation of the huge variety of different mammals that exist on Earth today

  • see how fossil evidence can help us to understand evolutionary history

  • understand how the structure of DNA can help us to detect differences between different species

  • apply the techniques of DNA analysis to work out which mammals are most closely related to each other

  • appreciate t
    Author(s): The Open University

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2.797J Molecular, Cellular, and Tissue Biomechanics (MIT)
This course develops and applies scaling laws and the methods of continuum mechanics to biomechanical phenomena over a range of length scales. Topics include structure of tissues and the molecular basis for macroscopic properties; chemical and electrical effects on mechanical behavior; cell mechanics, motility and adhesion; biomembranes; biomolecular mechanics and molecular motors. The class also examines experimental methods for probing structures at the tissue, cellular, and molecular levels.
Author(s): Lang, Matthew,Kamm, Roger D.

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Smossalade maken
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Leerlingen maken smossalade en denken daarbij na over de materialen die best geschikt zijn om de ingrediënten te verwerken (vergiet, dunschiller, eiersnijder, ...).


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2.3.4 Geophysical methods — borehole logging

If a core is not recovered from a borehole, another way to assess the types of rock that it penetrates is to measure their physical properties. Mounting a string of electronic instruments behind the drill bit most conveniently does this: it allows the properties of the rock to be monitored as the borehole is drilled. An alternative is to lower instruments down the completed borehole by cable; hence the name wireline logging.

Such logging measures several physical properties of th
Author(s): The Open University

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3.051J Materials for Biomedical Applications (MIT)
This class provides an introduction to the interactions between cells and the surfaces of biomaterials. The course covers: surface chemistry and physics of selected metals, polymers, and ceramics; surface characterization methodology; modification of biomaterials surfaces; quantitative assays of cell behavior in culture; biosensors and microarrays; bulk properties of implants; and acute and chronic response to implanted biomaterials. General topics include biosensors, drug delivery, and tissue e
Author(s): Mayes, Anne

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At least one wounded in Afghanistan blast
At least one person has been wounded in a bomb attack in eastern Kabul. Julie Noce reports. Subscribe: http://smarturl.it/reuterssubscribe More updates and breaking news: http://smarturl.it/BreakingNews Reuters tells the world's stories like no one else. As the largest international multimedia news provider, Reuters provides coverage around the globe and across topics including business, financial, national, and international news. For over 160 years, Reuters has maintained its reputation for
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Conclusion

This free course provided an introduction to studying Mathematics. It took you through a series of exercises designed to develop your approach to study and learning at a distance and helped to improve your confidence as an independent learner.


Author(s): The Open University

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Duke Medicine Profiles: Will Eward, MD, DVM
Get to know Duke Medicine's orthopaedic cancer surgeons.
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"Eden Rock" by Charley Causley (poetry reading)
A projection of the afterlife, drawn from idyllic memories of childhood. He pictures his parents as they used to be when he was a child. Most parents take photographs and videos of their children to provide lasting memories to treasure in later years. But very few take pictures of themselves - and it is pictures of the parents that the children will want to see: that is what THEY saw at the time. Women grow conscious of the toll taken by passing years and become more and more reluctant
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7.342 G-Protein Coupled Receptors: Vision and Disease (MIT)
How do we communicate with the outside world? How are our senses of vision, smell, taste and pain controlled at the cellular and molecular levels? What causes medical conditions like allergies, hypertension, depression, obesity and various central nervous system disorders? G-protein coupled receptors (GPCRs) provide a major part of the answer to all of these questions. GPCRs constitute the largest family of cell-surface receptors and in humans are encoded by more than 1,000 genes. GPCRs convert
Author(s): Kota, Parvathi

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1 Why is information security important?

This course introduces you to information security and its management.

A succinct definition of information security might run as follows:

Information security is the collection of technologies, standards, policies and management practices that are applied to information to keep it secure.

But why is it important to secure information? And how should its security be managed? To
Author(s): The Open University

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Copyright © 2013 The Open University