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Derived functions and derivative notation

Given the function x(t) that describes some particular motion, you could plot the corresponding position-time graph, measure its gradient at a variety of times to find the instantaneous velocity at those times and then plot the velocity-time graph. If you had some time left, you might go on to measure the gradient of the velocity-time graph at various times, and then plot the acceleration-time graph for the motion. This would effectively complete the description of the motion, b
Author(s): The Open University

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Strychine Poisoning in Toads

Strychnine is the principal alkaloid in nux vomica, the seeds of a tree strychnos nux vomica native to India. A toad is used in demonstrating the CNS ecitatory effect of strychnine.


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4 Open Mark quiz

Now try the quiz and see if there are any areas you need to work on.


Author(s): The Open University

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TALAT Lecture 2402: Design Recommendations for fatigue loaded structures
This lecture presents calculation of design stresses for variable stress ratios in practice, explanation on the background of design recommendations; it demonstrates the concept of partial safety factors and supply appropriate background information for aluminium; it enables the designer to evaluate service behavior of structural details on a more sophisticated level applying the same principles as in current design recommendations; it provides understanding of the fatigue design procedure accor
Author(s): TALAT,Dimitris Kosteas, Technische Universität MÃ

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Virtual Maths - 2D Shapes, rectangle
Interactive simulation demonstrating calculation of area of a rectangle
Author(s): Leeds Metropolitan University

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4.6 The European Court of Justice

The role of the European Court of Justice is to ensure that EC legislation is interpreted and applied consistently in each EU member state. It has the power to settle disputes and impose sanctions. It may also be asked to clarify the meaning of an EU law. Cases may be brought by EU member states, EU institutions, businesses or individuals. The membership of the court has expanded with the growth of the EU itself. The ECJ is composed of one judge for each EU member state. There is no system of
Author(s): The Open University

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Can Algorithms Replace Academics?
Algorithms will augment the professor’s research, taking it into realms previously unimaginable in academia. But where does this leave the academic?
Author(s): Chris Howells, Managing Editor, INSEAD Knowledge

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Danny Miller - Why We Post - The use and consequences of social media
Funded by the European Research Council, Why We Post examined uses of social media across eight countries. Part of the intention of the project was to make research findings easily accessible to a worldwide audience over digital platforms which resulted in developing an e-learning course for FutureLearn, making short films and publishing Open Access books. Moderated by John Postill, three members of the Why We Post team – Daniel Miller, Jolynna Sinanan and Sheba Mohammid – will discuss the
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6.3 The principle of direct effect

Does the principle of supremacy of EU law mean that the ECJ is the only court in charge of applying and enforcing EU law? The answer to this question is ‘no’, which is the consequence of the principle of direct effect. Certain provisions of EU law may confer rights or impose obligations on individuals that national courts are bound to recognise and enforce. This means that the national courts must apply the directly applicable EU rules and must do so in priority over any conflicting provi
Author(s): The Open University

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3.3.1 Phosphatidylinositol 3-kinase (PI 3-kinase)

Members of this family of lipid kinases usually have two subunits: one is a catalytic subunit with a lipid kinase domain and the other is a regulatory subunit, which contains two SH2 domains and a SH3 domain (p 85 PI 3-kinase in Figure 13).

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5.3 Histograms

5.3.1 What is a histogram?

The simplest definition of a histogram is that it is a bar chart with the adjacent bars touching each other. Unlike a bar chart, histograms are usually drawn only with vertical bars. Generally, histograms are used to illustrate continuous data whereas bar charts are used to illustrate discrete data (distinct categories).

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GRCC Student Support Services - TRiO
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Investigating Wisconsin History-From Here To There
From Here to There - While biking on the Military Ridge State Trail, which is a part of Wisconsin's Rails-to-Trails project, Angie wonders about the history of the trail. While investigating the mystery of the Military Ridge Trail, she learns about Wisconsin's transportation history, from the days of the first peoples to the present, and the role transportation systems have played in our state's development.

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Uneven Growth: Tactical Urbanisms for Expanding Megacities
Exhibition: Museum of Modern Art (MoMA), NYC, Nov 22, 2014 – May 10, 2015 Film: Uneven Growth NYC (scroll down to view) Essay: The Crisis of Planetary Urbanization by David Harvey Book: Published by The Museum of Modern Art, New York Edited with text by Pedro Gadanho. Text by Richard Burdett, Teddy Cruz, David Harvey, […]
Author(s): David Harvey

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Three killed Israeli teenagers to be buried side by side
Funeral services are held for the three missing Israeli teenagers whose bodies were found near Hebron under a pile of rocks, as Palestinians react to the death of a 19-year-old by Israeli troops during an arrest raid in the West Bank. Mana Rabiee 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 coverag
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Choral Vespers - 1/23/14
Choral Vespers is held on Thursday evenings at 5:15 p.m. This 30-40 minute candlelight service consists of scripture readings, prayers, and sacred music. The Duke Vespers Ensemble leads the choral portion of the service.
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Passing the GED Math Test
In this clip learn about the Pythagorean theorem, fractions and decimals to pass the GED math test with instructions and tips from a math professor.  The professor talks about passing the GED math test by practicing with a calculator, working on basic geometry and algebra and drilling multiplication tables.

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2.4 Receptor inactivation

As with all signalling components, receptors need to be switched off as well as on. Receptor inactivation can operate in several ways including removal of the ligand by degradation or sequestration, and desensitization of the target cell.

Binding of a ligand to its receptor is a reversible process, as the ligand will ultimately dissociate from the receptor and may be degraded. Acetylcholine is a good example of a signal regulated in this way; it is degraded by the enzyme cholinesterase
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The Watergate Scandal
This two minute video is a review of what happened in what has been called the Watergate Scandal and resulted in President Nixon resigning and how the cover-up included his actions. He is recorded planning the cover-up. A good overview. Nixon is the only president ever to resign.
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Virtual Maths, Shapes, Space and Measure, Demonstration of a Theodolite Survey in action
Using a theodolite to calculate the height of a building, demonstration 'in the field', includes interactive simulation tools and formulae
Author(s): Leeds Metropolitan University

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