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12.742 Marine Chemistry (MIT)
This course is an introduction to chemical oceanography. It describes reservoir models and residence time, major ion composition of seawater, inputs to and outputs from the ocean via rivers, the atmosphere, and the sea floor. Biogeochemical cycling within the oceanic water column and sediments, emphasizing the roles played by the formation, transport, and alteration of oceanic particles and the effects that these processes have on seawater composition. Cycles of carbon, nitrogen, phosphorus, oxy
Author(s): Toole, Dierdre,Casciotti, Karen,Tivey, Meg,Doney,

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C

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UNSPECIFIED - UNSPECIFIED Keywords:UNSPECIFIED
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UCJC 2007: Beyond Biology
Daniel Medwed gives the conference introduction. Katie Monroe speaks about the work of the Rocky Mountain Innocence Center in regard to the exoneration and assistance bill in Utah.
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Sesame Street Keep Christmas With You All Through The Year
Sesame Street characters sing, Keep Christmas With You All Through the Year.  
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Greece's political crisis
Alexis Papahelas, editor-in-chief of Greek newspaper Kathimerini, discusses the prospects for progress after a government reshuffle
Author(s): The Economist

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Rights not set

Edinburgh Dome, Malvern DP138177

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Malvern, Worcestershire. General view of the Edinburgh Dome at Malvern St James School For Girls, Avenue Road, fomerly Malvern Girls College.
© Historic England


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Pentominoes - A Virtual Manipulative
Add a pentomino to the workspace
Click on the button of the shape you want. You can move a pentomino by clicking and dragging it to a new location. When you place a pentomino next to another one, their edges will snap together.
Rotate
Click on the corner of the pentomino. Hold down the mouse button and move the mouse in a circular motion to rotate the pentomino. Then release the mouse button.

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Keep on learning

Study another free course

There are more than 800 courses on OpenLearn for you to choose from on a range of subjects. 

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Author(s): The Open University

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2.1 Which units to use

It is important to choose appropriate units, both to have a sense of the size you are talking about and also to avoid having to deal with very large or very small numbers.

For example using the UK decimal system, where £1 = 100p (one pound is equivalent to 100 pence), you would probably use pence for prices less than a pound: 50p rather than £0.50 and pounds for larger amounts, e.g. £2.50 instead of 250p.

For distance, mass and liquid measures, the metric system of units
Author(s): The Open University

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Measuring Volume of an Odd Shaped Object
It is more difficult to measure the volume of an odd shaped object.  This videos explains how to measure the volume of a marble by using water displacement.  Run time 01:44.
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3 Biographical perspective: using pathways

You will shortly be hearing excerpts from interviews with four men, who were contacted through the Swansea Cyrenians. They are all from very different backgrounds, and talk about their own experiences of homelessness.

The clips are only brief insights into life without a home, but they do demonstrate the importance of a biographical perspective in understanding the unique and diverse needs of individual homeless people.

Looking at situations from a biological perspective is
Author(s): The Open University

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2.2 The nature of systems thinking and systems practice

There are no simple definitions for either systems thinking or systems practice. It's difficult to find definitions that capture all the perspectives that the ideas carry for people who think of themselves as systems thinkers and systems practitioners. Most systems practitioners seem to experience the same kind of difficulty in explaining what they do or what it means to be systemic in their thinking. Through experience I've developed some criteria by which I characterise systems thinking, bu
Author(s): The Open University

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18.413 Error-Correcting Codes Laboratory (MIT)
This course introduces students to iterative decoding algorithms and the codes to which they are applied, including Turbo Codes, Low-Density Parity-Check Codes, and Serially-Concatenated Codes. The course will begin with an introduction to the fundamental problems of Coding Theory and their mathematical formulations. This will be followed by a study of Belief Propagation--the probabilistic heuristic which underlies iterative decoding algorithms. Belief Propagation will then be applied to the dec
Author(s): Spielman, Daniel

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Content within individual OCW courses is (c) by the individual authors unless otherwise noted. MIT OpenCourseWare materials are licensed by the Massachusetts Institute of Technology under a Creative C

Clarke - Cross Theme DP184062

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Cross Theme (1962) by Geoffrey Clarke. The Chapel of the Ascension, Bishop Otter Campus, University of Chichester, Chichester, West Sussex. Cast aluminium sculpture which represents the crucifixion. General view from the north west. Photographed by Steven Baker 2015.
© Historic England


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Energy policy and climate change
The 2009 United Nations Climate Change Conference in Copenhagen presents a new focus for international debate and decisions about energy and its use. What are the countries of Western Europe and Scandinavia doing to promote sustainable energy production? Just how different will the future energy map of Europe look? And is energy policy principally a scientific issue or a political one? This album contains a series of films exploring energy policy in various countries around Europe in 2006, frame
Author(s): The iTunes U team

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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

Season's Greetings from Michigan State University
Enjoy this holiday greeting celebrating the work of more than half a million MSU Spartans who are a force for good—this season and all seasons. Like us on Facebook: http://facebook.com/spartans.msu Stay connected at MSUToday http://msutoday.msu.edu
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4.3.1 Arrhenius's law

In 1889 Arrhenius, a Swedish chemist, put forward a model to describe the way in which the rates of many chemical reactions could be accelerated by increasing temperature. His model is based on the idea that the rate at which such chemical reactions happen is proportional to the number of particles with enough thermal energy to overcome some sort of energy barrier. In other words, it relates the rate at which things happen to the fraction of particles having energies beyond some threshold ene
Author(s): The Open University

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Acknowledgements

Grateful acknowledgement is made to the following sources for permission to reproduce material in this unit:

The content is taken from an activity written by Marion Hall for students taking courses in Health and Social Care, in particular those studying K101 An Introduction to Health and Social Care. The original activity is one of a set of skills activities made available to all HSC students via the HSC Resource Bank.

Except for third party materials and otherwise stated (see
Author(s): The Open University

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Importing and Editing Images (4 of 10)
In this video you’ll learn how to import and edit images in Flash.
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Participatory development inaction
A brief introduction to this album.
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