Vespers - 11/29/12
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Kangoeroe : Zoekopdracht op internet Leerlingen zoeken verschillende weetjes op over kangoeroes. Ze zoeken de antwoorden op www.spreekbeurten.nu/spreekbeurten.asp. Ze noteren hun …
03.12.2012 – Langsam gesprochene Nachrichten
Trainiere dein Hörverstehen mit den Nachrichten der Deutschen Welle von Montag – als Text und als verständlich gesprochene Audio-Datei.
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Im Machtkampf in Ägypten wollen die Richter des Landes die Volksabstimmung über eine neue Verfassung boykottieren. Laut der staatlichen Nachrichtenagentur Mena erklärten die Richter, dass das Dekret des islamistischen Präsidenten Mohammed Mursi in die Arbeit der Justiz eingreife und ihre Unabhängigkeit verletze. Damit dürfte es schwerfallen, das
Upper Beginner #24 - Feasting on the Bullet Train in Japan
Learn Japanese with JapanesePod101.com! The person sitting across from you on the six-hour Japanese bullet train ride has been eating Japanese snacks since you left the station. He has devoured everything the Japanese cart attendant has brought by, from Japanese crackers to fish, and he has probably eaten more than you do in an entire [...]
Economic Update: "Inconvenient Economic Truths"
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We Write the Songs: ASCAP Concert 2012
The Library hosted the American Society of Composers, Authors and Publishers (ASCAP) Foundation for its annual event "We Write the Songs," a night of songwriters performing their own tunes and telling the stories behind their creations. Performers included Terri Nunn, Ray Parker Jr., Irving Burgie, Stephen Bishop, Melanie, Dan Foliart, Dino Fekaris, Chris Stapleton, Stephen Schwartz, Valerie Simpson (of Ashford & Simpson fame) and ASCAP president Paul Williams.
For more information, visit http:
Building Climate Resilient Communities through Community Based Adaptation Planning and Action: Empir
By: UP Los Baños Presentation by Dr. Dharam Uprety, Forestry and Climate Change Manager, Multi Stakeholders Forestry Programme, Nepal. Delivered during the International Conference on Climate Change Impacts and Adaptation for Food and Environmental Security, November 21-22, 2012 at SEARCA, UPLB, College, Laguna, Philippines.
Economy-Wide Estimates of Climate-Induced Impacts on Philippine Agriculture: A Computable General
By: UP Los Baños Presentation by Dr. Arvin B. Vista, Assistant Professor, College of Economics and Management, University of the Philippines Los Banos,
Philippines. Delivered during the International Conference on Climate Change Impacts and Adaptation for Food and Environmental Security, November 21-22, 2012 at SEARCA, UPLB, College, Laguna, Philippines.
Gamestudio : Maak je eigen games Met de GameKit kun je snel en makkelijk zelf games bouwen. Maar niet alleen kun je helemaal zelf games bouwen, je kunt alle andere spellen van de site openen en veranderen of er extra levels bij bouwen.
How 3D Glasses Work uploaded 12/3/12
4.1 The rate of evolution I now want to move away from looking at the challenges facing all aquatic mammals, to examine very briefly what we know about the evolutionary history of the cetaceans. This group has travelled furthest from its terrestrial roots and made the fullest adaptation to life in the sea. Since mammals evolved on land, it has long seemed reasonable to suggest that the origin of whales must have involved an evolutionary transition from the land to the water. But how can we explain the fact that
2.3 Moving about Water is more viscous than air, so it can take more effort to move through water (try running in a swimming pool). Friction between the body and the water causes turbulence, which holds a swimmer back, and the faster the swimmer tries to move, the greater the turbulence. One way of avoiding the problem is to leave the water for short periods and travel through air, and some of the smaller pinnipeds and cetaceans resort to ‘porpoising’, leaping from the water for short periods when they ne
2.1 Land versus water Mammals share a number of biological characteristics that mark them out as members of the class Mammalia. Many of these are adaptations to a life on land. For example: Mammals give birth to young at a relatively advanced stage of development and feed their young on milk. Most mammals have hair, or fur, covering part or all of the body. Mammals have a high metabolic rate and maintain a relatively high and constant body temp
Learning outcomes By the end of this unit you should be able to: contrast the physical properties of air and water and describe implications of such differences for aquatic mammals; give examples of the adaptations displayed by aquatic mammals that enable them to hold their breath while submerged for relatively long periods; describe some of the biological differences between pinnipeds, sirenians and cetaceans; discuss the importance of communication b
Introduction The versatility of mammals is a central theme of the ‘Studying mammals’ series of units, but surely no environment has tested that versatility as much as the rivers and oceans of the world. Mammals are essentially a terrestrial group of animals, but three major groups have independently adopted an aquatic way of life. In moving to the water, aquatic mammals have had to survive, feed and reproduce using a set of biological characteristics that evolved in association with life on land. This
Acknowledgements The content acknowledged below is Proprietary (see terms and conditions) and is used under licence. Grateful acknowledgement is made to the following sources for permission to reproduce material in this unit: Figure 2(f) © National Power; Figure 3 Courtesy of IBM Corporation, Research Division, Almaden Research Center; Figure 14 ‘Fuel hoarder sentenced’ by Maurice Weaver, printed 6 April 2001, Telegraph Gro
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7.5 Summary of Section 7 The equilibrium constant of a reaction is fixed at any particular temperature. It depends only on the natures of the initial reactants and the final products; what happens as reactants change into products has no effect on the equilibrium constant or position of equilibrium. The rate of a chemical reaction is affected both by the temperature and by the pathway (reaction mechanism) through which reactants change into products. This pathway c
7.3 Is the rate of reaction very slow? If the equilibrium position is very favourable, then the reason why Reaction 8.1 fails to occur at 525 °C must be that its rate is very slow. Usually, a reasonable response would be to increase the temperature yet further, but the structure and economy of the car gives us little scope to do this. The alternative is to use a catalyst, which leaves the equilibrium constant unchanged, while speeding the reaction up. Let us look at the changes that take place in the internal energy
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
7.2 Is the equilibrium position unfavourable? The first possibility is that the reaction system has been able to reach chemical equilibrium, but the equilibrium position is not favourable. How does this come about? If equilibrium has been reached, then the forward (left to right) and backward (right to left) reactions are occurring at equal rates. In such a case, we can emphasise the fact by writing the reaction with two opposed, half-headed arrows: 2NO(g) +
