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3.2 Combining data structures

In Section 2, we introduced the notation SeqOfX for the set of all sequences whose members come from the set X. In Section 2, we looked only at sequences whose members were of one of the primitive forms of data (integers, characters or Booleans). We can have sequences whose members are themselves data with a more complicated form. For example, suppose that Jo is working at the till T1 and is replaced by Jessica. We might represent this handover by the 3-tuple (Jo, T1, Jes
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1.2.2 Summary

  • The EU-15/25 is a large and prosperous player on the world economic stage.

  • It represents a continental-sized economy, able to compete with the USA and Japan (and China and India, somewhere down the line).

  • The new EU members who joined in 2004, and those lining up to join later, are at a different level of development to the EU-15.

  • This will pose considerable challenges for those managing and governing the n
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Carl Sagan - Biography Pt.2
The years 1981 to 1996.  This is part 2 of 3 from A&E's Biography of Carl Sagan's life and achievements as a major astronomer of his time.

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1.7 Key points

In the key points box below we sum up the main ideas introduced so far. You can use it now to check that you have grasped the main ideas, and later the key points will remind you of the content.

Key points

  • An informal carer is defined as a p
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How does current work? Find out as this teacher from Dallas, Texas, helps you learn. This video is in lecture format - with the teacher speaking into the camera and a dry erase board behind her.  She focuses much of her time on the formulas for currents and amps. Some key words include: matter, positive charge, negative charge, repel, attract, electron, coulombs, current, flow, and amp. Run time 04:00.
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21M.051 Fundamentals of Music (MIT)
This class introduces students to the rudiments of Western music through oral, aural, and written practice utilizing rhythm, melody, intervals, scales, chords, and musical notation. The approach is based upon the inclusive Kodály philosophy of music education. Individual skills are addressed through a variety of means, emphasizing singing and keyboard practice in the required piano labs.
Author(s): Wood, Pamela

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21W.747-1 Rhetoric (MIT)
This course is an introduction to the theory, the practice, and the implications (both social and ethical) of rhetoric, the art and craft of persuasion. This semester, many of your skills will have the opportunity to be deepened by practice, including your analytical and critical thinking skills, your persuasive writing skills, and your oral presentation skills. In this course you will act as both a rhetor (a person who uses rhetoric) and as a rhetorical critic (one who studies the art of rhetor
Author(s): Strang, Steven

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BIO190 Fall 2010 Session 10
BIO190 Marine Life Session Ten 11/18/10 Sarah Swain Guest: Shelly Ko
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8.06 Quantum Physics III (MIT)
Together, this course and its predecessor, 8.05: Quantum Physics II, cover quantum physics with applications drawn from modern physics. Topics in this course include units, time-independent approximation methods, the structure of one- and two-electron atoms, charged particles in a magnetic field, scattering, and time-dependent perturbation theory. In this second term, students are required to research and write a paper on a topic related to the content of 8.05 and 8.06.
Author(s): Rajagopal, Krishna

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Lecture 15: Engineering for Sustainable Development
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Subscribe now to UNSWTV: http//:www.youtube.com/unsw UNSW Art & Design student Eugenie Oh's inventive info graphic illuminates Esther Rosenberg's insightful treatise on the wonder of words.INTERESTED IN STUDYING AT UNSW ART & DESIGN? https://www.artdesign.unsw.edu.au/future-students UNSWTV is the official channel of UNSW Australia (the University of New South Wales), a powerhouse of cutting-edge research and teaching in the Asia-Pacific based in Sydney. Innovation, technology and creativity a
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Dit artikel van National Geographic levert een blik op moleculaire gastronomie. Eten bereiden met een stevige dosis wetenschappelijke kennis.


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Heat - by StudyJams
Heat is thermal energy that exists in matter.  The faster an object's particles move, the more heat it has.  Heat can be added to an object by making its particles speed up. There are three basic forms of heat. Learn more about heat with this cartoon animation from StudyJams.  A short, self-checking quiz is also included with this link.
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© Historic England


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2.2.1 Try some yourself

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7.2.1 The equilibrium constant

An expression for the equilibrium constant of a reaction can be put together from the concentrations of the reactants and products at equilibrium. A concentration of a reactant or product is represented by enclosing its chemical formula in square brackets. Thus, the concentration of NO(g) is written [NO(g)].

To write down the equilibrium constant of a reaction, we start with the concentrations of the products. Each one is raised to the power of the number that precedes it in the reactio
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