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Identitat, mitjans de comunicació i testimonis
Ho va deixar escrit el reporter Ryskard Kapuscinki: "Es diu que els mitjans són el quart poder, però jo apujaria el seu lloc en el rànquing. Ja sabem que el seu paper en la política és cada vegada més rellevant i que ha fet que insurrectes i colpistes de tota mena canviessin l'objectiu dels seus atacs a tot el món: abans assetjaven palaus presidencials i seus de governs i parlaments, mentre que ara intenten fer-se en primer lloc amb el control de les emissores de ràdio i televisió. No d
Author(s): Toni Aira Foix

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Recepció i promoció del llibre i la lectura en la societat de la informació
La vida d'un text comença (no acaba) en el moment en què es publica. Aquesta assignatura proposa una aproximació al fenomen de la recepció i la promoció del llibre, la literatura i la lectura en la societat de la informació i combina la presentació de continguts teòrics -sobre les tecnologies de la lectura, els contextos digitals de recepció, les funcions de la crítica a Internet, les campanyes institucionals de promoció del llibre, el problema de la digitalització o les biblioteques
Author(s): Jordi Llobet Domènech,Víctor Lluís Mora

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Photosynthesis: Life's Primary Energy Source
This lesson covers the process of photosynthesis and the related plant cell functions of transpiration and cellular respiration. Students will learn how engineers can use the natural process of photosynthesis as an exemplary model of a complex yet efficient process for converting solar energy to chemical energy or distributing water throughout a system.
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Trash to Treasure!
Student teams use the engineering design process to create a useful product of their choice out of recyclable items and "trash." The class is given a "landfill" of reusable items, such as aluminum cans, cardboard, paper, juice boxes, chip bags, egg cartons, milk cartons, and etc. and each group is allowed a limited amount of bonding materials, such as duct tape, hot glue and string. This activity addresses the importance of reuse and encourages students to look at ways they can reuse items they
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Glowing Flowers
Student teams learn about engineering design of green fluorescent proteins (GFPs) and the use of GFPs in medical research, including stem cell research. The use of GFPs is simulated by adding fluorescent dye to water and allowing a flower or plant to transport the dye throughout its structure. Students apply their knowledge of GFPs to engineering applications in the medical, environmental and space exploration fields. Due to the fluorescing nature of the dye, plant life of any color, light or da
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The Cloning of Cells
In this lesson, students continue their education on cells in the human body. They discuss stem cells and how engineers are involved in the research of stem cell behavior. They learn about possible applications of stem cell research and associated technologies, such as fluorescent dyes for tracking the replication of specific cells.
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Swinging Pendulum (for High School)
This activity shows students the engineering importance of understanding the laws of mechanical energy. More specifically, it demonstrates how potential energy can be converted to kinetic energy and back again. Given a pendulum height, students calculate and predict how fast the pendulum will swing by using the equations for potential and kinetic energy. The equations will be justified as students experimentally measure the speed of the pendulum and compare theory with reality.
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Sliders (for High School)
In this hands-on activity, students learn about two types of friction static and kinetic and the equation that governs them. They also measure the coefficient of static friction and the coefficient of kinetic friction experimentally.
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Skateboard Disaster
Students examine collisions between two skateboards with different masses to learn about conservation of momentum in collisions.
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3.5.1 IPv4 Addresses

The allocation of addresses on the Internet is controlled by the Internet Assigned Numbers Authority (IANA), although authority is delegated to several local registries. IPv4 addresses may be interpreted in two ways. Initially, they were divided into distinct ranges of addresses called classes, but this proved to be inflexible and now a more flexible scheme, called classless addressing, dominates IPv4 internetworks. I shall describe both ways of interpreting IPv4 addresses because the limitat
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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

3.3 Hypertext transfer protocol (HTTP)

In this section, I shall look at one example of an application of the TCP/IP protocol suite – sending hypertext pages over the world wide web (WWW or simply the web). However, first I shall very briefly summarise the main features of the web that are relevant to this discussion. There are many sources of information about the web on the web itself for those who want to know more.

In very basic terms, the web is an application of the Internet for accessing resources where
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Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

7.4 Evaluating your strategy and assessing your work

Present an evaluation that includes a summary of how effective your overall strategy has been in helping you use skills to improve your learning and performance, giving details of:

  • those factors that worked well to help you improve and those that have worked less well; which factors had the greatest effect on your achievement of what you set out to do?

  • an assessment, referring to your review and targets, of your own progress and perfo
    Author(s): No creator set

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    Licensed under a Creative Commons Attribution - NonCommercial-ShareAlike 2.0 Licence - see http://creativecommons.org/licenses/by-nc-sa/2.0/uk/ - Original copyright The Open University

Ampere's Law
The lesson begins with a demonstration introducing students to the force between two current carrying loops, comparing the attraction and repulsion between the loops to that between two magnets. After formal lecture on Ampere's law, students begin to use the concepts to calculate the magnetic field around a loop. This is applied to determine the magnetic field of a toroid, imagining a toroid as a looped solenoid.
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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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Plates on the Move
This fun Web article is part of OLogy, where kids can collect virtual trading cards and create projects with them. Here, they learn about the Earth's outer shell and its constant movement. It begins with an overview that explains tectonic plates and the four things (slip, spreading, collision, and subduction) that can happen when the edges of the plates meet.
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Factors Affecting the Spread of Disease in Human Populations
This resource is a detailed manual of protocols and instructional information for carrying out an undergraduate laboratory exercise in epidemiology, including student outlines,pre-lab questions, instructors notes, and suggested questions for laboratory reports.
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Brown hen
A female chicken is called a hen. A hen is capable of laying eggs. She has feathers to let her fly, a tail for balance, and the comb and wattle both help cool the hen off by circulating blood through them.
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3.2 Physiological changes during entry
Hibernation is an ingenious adaptation that some animals employ to survive difficult conditions in winter. This unit examines the differences between hibernation and torpor, and discusses the characteristic signs of hibernation behaviour. It explores the triggers that bring on hibernation, and whether internal signals or external season cues are predominant. It also examines the physiological adaptations that occur in hibernating animals. This unit builds on and develops ideas introduced in the
Author(s): The Open University

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Velocity-Time Graph
Description of the theory behind the velocity-time graph and its use in solving problems in linear motion under constant acceleration.
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2.11 Further exercises
Number systems and the rules for combining numbers can be daunting. This unit will help you to understand the detail of rational and real numbers, complex numbers and integers. You will also be introduced to modular arithmetic and the concept of a relation between elements of a set.
Author(s): The Open University

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