Sheaf-like arrangement of lamellae in a blend of polyethylenes
A replica of a 3:1 blend of linear with lightly branched polyethylenes (BPE has 26 branched per 1000 backbone carbon atoms) after isothermal crystallisation at a temperature at which the LPE but not the BPE can crystallise. This sample crystallised from a phase separated melt. There are clearly two lamellar types (The isothermal crystallisation makes the distinction clearer). The thick, LPE rich, lamellae crystallised in sheaf-like groups, from LPE rich droplets contained in a BPE rich matrix. T
Author(s): Dr P J Barham, Polymer Physics Group, Bristol Univ

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Archaeology of Medieval and Tudor Britain
The aim of this course is to provide a broad understanding of the archaeology of Britain in the period c. 1066-1600. Although the bulk of the material will relate to England and Wales, occasional reference will be made to Scotland and Ireland. The course takes a necessarily broad approach to the archaeology of the period. Although the treatment of excavated data will form an important component of the syllabus, other types of evidence will also be considered. For instance, the course will examin
Author(s): University of Exeter

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Town and Country in Roman Britain
This course aims to look at the archaeology of various types of urban centres in the province of Britannia Roman Britain and the settlements in the rural areas around them. In particular we will examine the inter-dependence and possible relationships of towns and countryside. We cannot ignore the fact that Britain was only one small province of an Empire which stretched from Asia Minor to Scotland and the Sahara Desert to the rivers Rhine and Danube. We may therefore occasionally have to conside
Author(s): University of Exeter

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2.3 Threats to the living planet

An idea, a relationship, can go extinct, just like an animal or plant. The idea in this case is ‘nature’, the separate and wild province, the world apart from man to which he adapted, under whose rules he was born an
Author(s): The Open University

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4.3 Nuclear fuel transport and processing

Most radioactive materials connected with the UK nuclear power industry are transported by rail in massive transport flasks which have been shown in tests to survive high-speed impacts without fracturing. In fact, it is the highly radioactive spent nuclear fuels being transported to reprocessing sites that constitute the greatest danger.

Power stations unavoidably discharge radioactive gases to the atmosphere, but these escapes are sufficiently dilute not to be regarded as clinically ha
Author(s): The Open University

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Muscles
This topic starts with a basic introduction to muscles and an image illustrating the possible locations of the different muscle tissues. The three types of muscle tissue are described in more detail. Along with the features of muscle tissue (e.g. contractibility), the functions of these tissues (e.g. support) are discussed.
Author(s): St George's, University of London,Raja Habib

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Chris Difford Guest Lecture "Cool for Cats..."
On Thursday 19 November, double Ivor Novello Award winner Chris Difford delivered on song writing to a full lecture theatre. It was a moment to remember for all in attendance, with one member of staff commenting, "I've worked here for sixteen years and that was the best hour yet". Chris' anecdotes and advice were especially appreciated by the song writers and music production students in the audience. With over 25 years of experience, and a single-minded attitude, Chris has become one of the mos
Author(s): Leeds Metropolitian University

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Transport Activities
Activities for Part Seven of Greening Business: Transport often makes up a major part of an organization’s carbon footprint, whether through commuting of employees, business travel, or transport of materials, products or waste. Organizations can reduce this component of their carbon footprint through a wide range of actions including more fuel efficient company cars, increased use of video conferencing, change of source location of materials, reduction in off-site waste transport, and incenti
Author(s): Keele University,Stephen Whitfield,Dr Zoe Robinson

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Article :: Selections: The Key to Compositing in Adobe After Effects 7.0
A particle physicist works with atoms, bakers and bankers work with their own types of dough, and compositors work with selections—many different types of selections, each of them derived uniquely. In this chapter, you'll look at the foundation techniques that define how a layer merges with those behind it.
Author(s): No creator set

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1.6 The human impact on the atmosphere: the coming of the industrial age

There is no doubt that CO2 is accumulating in the atmosphere. The record from Mauna Loa charts a continuing rise in CO2 concentration since measurements began in 1958, when the level was 315 ppm; the value had reached about 370 ppm by the end of the 20th century, and hit more than 378 ppm in 2004. Important as changes in atmospheric CO2 undoubtedly are (see below), we need to be aware that this is not the whole story of human-induced greenhouse forcing. In par
Author(s): The Open University

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22.251 Systems Analysis of the Nuclear Fuel Cycle (MIT)
This course provides an in-depth technical and policy analysis of various options for the nuclear fuel cycle. Topics include uranium supply, enrichment fuel fabrication, in-core physics and fuel management of uranium, thorium and other fuel types, reprocessing and waste disposal. Also covered are the principles of fuel cycle economics and the applied reactor physics of both contemporary and proposed thermal and fast reactors. Nonproliferation aspects, disposal of excess weapons plutonium, and tr
Author(s): Kazimi, Mujid S.

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Virtual Maths - Numbers, 2D Rectangle simulation tool
Interactive simulation tool demonstrating the formula for calculating the area of a 2D rectangle
Author(s): Leeds Metropolitan University

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UC IPM pest management guidelines - small grains

thumbnailThis illustrated resource, authored by University of California faculty specialists, provides information on the diseases, insects and mites, nematodes, and weeds that can affect small grain crops. The information incl
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The Western Soundscape Archive (WSA)
The Western Soundscape Archive (WSA) recognizes the vital connection between places and their soundscapes and features audio recordings of animals and environments throughout the western United States. The WSA typically features three types of recordings: those of individual species, ambient soundscapes and interviews. The project's geographic focus includes eleven contiguous western states — Arizona, California, Colorado, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington and Wyomi
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Building for the Big One
Using this activity, students will learn about the effects of earthquakes and how various soil types react during an earthquake. This lesson gives students first-hand experience in making design decisions similar to those made in the real world.
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NASA KSNN Why do magnets work?
Magnetism is an invisible force felt within the space around a magnet. This space, called the magnetic field, can either attract (pull) or repel (push away) other magnets and some types of metal
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Wetlands of the coastal plains
This Carolina Environmental Diversity Explorations "virtual field trip" explores the various wetlands of North Carolina's coastal plain, including the longleaf pine savanna, sandhill scrub, pocosin, pond pine woodland, coastal plain bottomland forest, tidal freshwater marsh, cypress gum swamp, and salt marsh. In each type of wetland, you'll learn about the various plant communities and their adaptations to their environment. You'll also learn how wetlands are formed and why North Carolina has so
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Cell Differentials
Cell Differentials offers a visual dataset of white blood cells that gives students practice in developing strategies and techniques for the recognition of these blood cell types. Over 100 different cell images are randomly presented with feedback on successful identification. In traditional labs, the recognition of white blood cell types can be compromised by several factors. Developmental changes can make recognition difficult and some cell types exhibit similar features. Microscopy can be a
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Data Collection and Organization
The Data Collection and Organization (DC&O) text module provides background on useful, general-purpose software tools. The aim is to discuss types of generic software that virtually every well-equipped scientist uses. This includes: spreadsheets, database programs, statistics packages, graphics programs, and word processors. DC&O includes several examples of the use of these tools in biology. These include 'An Embryological Example with Tips and Tricks' and the complete text and dataset of a cl
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BeeVisit
BeeVisit enables students to evaluate the relative contributions of different pollinator species to a plant's reproductive success through an interactive model of pollen transfer. The model tracks a plant's presentation of pollen through time; pollen may be presented gradually or all at once, and the program lets you choose from a family of power curves to model the shape of the cumulative pollen presentation curve over a set number of time intervals (usually 100). Then, 'bees' of 1, 2, or 3 ty
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