6.1 Basic isotropy

As we have said, the photons in the 3 K background have been practically free from interaction with anything since about 4 × 105 years after the instant of the big bang. The present angular distribution of the microwave radiation – the way in which it is spread across the sky – is therefore almost the same as it was then. The spectrum we find today depends on the temperatures at that time – for the intensity of the radiation in a particular region of the early Unive
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{Suresh 864} Nice sentences
Master Your Vocabulary. Take a look at: Vocabulary Quiz - Hindi->English; Picture->Hindi; Recording->Hindi; and more!Vocabulary List - Easy to study list with pictures and recordings for some words{Suresh 864} Nice […]

Introduction

This unit provides an introduction to the evolution of mammals.

We will be considering Darwin's observations on a great many mammals, and how he noticed that species fell into natural groups. We take as an example the evolution of one particularly interesting mammal, the whale, and look at evidence both from fossils and from DNA to see which other mammals are most closely related to whales. We see how the evidence from these two very different sources points to the same relationship and
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Israel's Netanyahu urges 'better deal' over Iran nuclear program
In the most anticipated speech to the U.S. Congress by a foreign leader in years, Israeli Prime Minister Benjamin Netanyahu tells U.S. to hold out for a "better" nuclear deal with Iran. 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 coverage around the globe and across topics including bu
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Introduction

The core of this course is Chapter 9 of Teach Yourself Planets, by David Rothery, which is found in Section 1 of this course page by page, followed by a guided discussion and questions in Sections 2 through 4. Note that all references in Chapter 9 of Teach Yourself Planets to other chapters, are to other chapters of Teach Yourself Planets - these references are not to other sections of this course.

Jupiter is the first of the giant planets and has a large family of
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4 Continental break up and opening of the lapetus Ocean

The document attached below includes the fourth section of Mountain building in Scotland. In this section, you will find the following subsections:

  • 4.1 Introduction

  • 4.2 The Dalradian Supergroup

    • 4.2.1 Dalradian sedimentary basins: seeing through metamorphism

    • 4.2.2 Primary rock types and terminology

    • 4.2.3 Lithostratigraphic subdivisions of the Dalradian Supe
      Author(s): The Open University

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1.3.2 Peat formation in raised mires

Mires can also form inland within low-lying depressions, provided the rate of precipitation exceeds the rate of evaporation (Figure 4a). Peat is impermeable and so its accumulation progressively impedes drainage. This attribute gives mires the ability to maintain a water table independent of the area surrounding them.
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3.4 Integration of anatomical features and biochemical and physiological strategies in endurers

The endurers, large animals with a relatively low surface area: volume ratio, have problems in losing heat from the body when exposed to high T a. Certain large lizard species behave like endurers, but they are evaders and evaporators too, a salutary reminder that we should not apply classification criteria too rigidly.

Dipsosaurus dorsalis, the desert iguana, lives in the Sonoran desert and is found most commonly in dry sandy areas where creosote bushes grow (S
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1.5 The physics and chemistry of coal formation

Coal is a type of sediment made up mainly of lithified plant remains. But how does spongy, rotting plant debris become a hard seam of coal? As discussed earlier, plant material growing in mires dies, and then rots under anoxic conditions to form peat (by the process of humification). With time, the mire becomes covered with layers of sediment, the weight of which squeezes water and gas out of the pore spaces and compacts the vegetation. As subsidence allows deposition of further mire-s
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28.12.2011 – Langsam gesprochene Nachrichten
Trainieren Sie Ihr Hörverstehen mit authentischen Materialien. Nutzen Sie die Nachrichten der Deutschen Welle von Mittwoch – als Text und als verständlich gesprochene Audio-Datei.Die USA haben Syrien zu einer umfangreichen Zusammenarbeit mit den Beobachtern der Arabischen Liga aufgefordert. Sollte das syrische Regime weiterhin Widerstand gegen die Bemühungen der Liga leisten oder sie ignorieren, dann werde die internationale Gemeinschaft andere Mittel zum Schutz syrischer Zivilisten in Betr
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Introduction to Human Physiology
Steven Telleen
This chapter provides an introduction to human physiology. It is intended to help students understand key concepts that will help them navigate the specific details in later chapters.

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Feinstein details harrowing CIA "enhanced interrogation" techniques
Senate Intelligence Committee Chair Senator Dianne Feinstein says CIA detainees were “stripped naked, diapered, physically struck and put in various painful stress positions” in the aftermath of the September 11, 2001 attacks. Rough Cut (no reporter narration). 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 provid
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Low magnification SEM image of open cell polyurethane foam
If a gas is injected into a liquid it forms a cellular foam structure. When a thermoset prepolymer of low viscosity is foamed, the polymer can drain from the cell walls (driven by surface tension) before it sets at the cell edges, leaving an open-celled foam. The cell edges have three concave sides, giving rise to the tri-cuspid cross section visible at the bottom of this image. The average co-ordination number for the nodes (where struts meet) is four, giving tetrahedral junctions.
Author(s): DoITPoMS, University of Cambridge,Dr J A Elliott,

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Unravelling the mysteries of chromsomes
The DNA in our cells is tightly packed into structures called chromosomes. The role of the physical structure of chromosomes in diseases and genetics is being explored thanks to recent advances in technology that allow scientists to look at how the DNA is packaged into chromatin- the structures that form chromosomes. In this lecture Dr Grigoryev will discuss current models of chromosome organisation, several examples of cutting edge research aimed at understanding role of chromatin in cell diffe
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9.3 Monoamine oxidase A, maltreatment during childhood and later violence

One Dutch family was found to have a history of antisocial (aggressive) behaviour. Genetic studies were conducted and a potential culprit gene MAOA, monoamine oxidase A, identified. The aggressive individuals in the family appeared to have a mutant gene which produced no MAOAP, an enzyme involved in the breakdown of certain neurotransmitters, including serotonin. A knockout mouse model, in which the MAOA gene was inactive, was also found to be aggressive, apparently confirming the role of MAO
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2.2 Winning coal in former times

Coal was probably first used as a fuel by early Chinese civilizations, and there is evidence for coal working in the UK since Roman times. However, early approaches to mining were limited by the available technology, and left much of the coal behind.

At first, coal was dug from seams exposed at the surface in shallow excavations into valley sides that followed the coal seam. The amount of coal that could be extracted from these trenches and from adits (short horizontal tunnels) w
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2.1 The Moon

David A. Rothery Teach Yourself Planets, Chapter 6, pp. 66-75, Hodder Education, 2000, 2003.

Copyright © David Rothery

In this chapter you will learn:

  • about the nearest planetary body to the Earth

  • about the long record of impact cratering on its surface, and about the ancient eruptions that flooded many low-lying areas.

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Francisco Campbell Hooker: The African Presence in Latin America
Ambassador Francisco Campbell Hooker of the Republic of Nicaragua disucsses the African presence in Latin America. Speaker Biography: Francisco Campbell is Nicaraguan Ambassador to the United States.
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Le travail des praticiens de la mémoire publique - 2ème Partie: Usages publics de la mémoire ...

2ème Partie: Usages publics de la mémoire

La table ronde intitulée « Le travail des praticiens de la mémoire publique : l’impact des contraintes matérielles et de la prise en compte du public-cible » s’est tenue le 8 octobre 2015 dans le cadre du colloque interdisciplinaire La Fabrique des mémoires publiques (Université Paul-Valéry, Montpellier, ...
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Things That are Pink

Slides present photos of objects that are pink.  The object's name and the color are written on each slide. No narration. (01:44)

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