1.2.2 Chemical contraceptives These methods rely to a large extent on an understanding of the physiology of the reproductive process. They are targeted at preventing the production or release of gametes, i.e. the sex cells – sperm and eggs – which need to fuse to produce a new individual. To date, most effort in this area has been directed towards preventing a woman from ovulating, i.e. releasing an egg, although more recently trials have begun on ‘male pills’ which block sperm production. Ovulation i
Conquering Technophobia: A Classroom Veteran Warms to Digital Tools
Jim Wilson, a self-described "old guy" and star of theEdutopia video Conquering Technophobia, has gone from grumbling about his school's technology-integration initiative to embracing it. Laptop computers and other gadgets are now tools that he uses just about every day in his English classes at Freedom Area High School, outside Pittsburgh.There have been bumps along the way, and -- Wilson will be the first to tell you -- there are surely more to come. But he's pleased with what comput
Partnerships: working across boundaries
How much more can you achieve by working with others rather than working alone? How should you manage relationships across various physical and cultural divides? This album explores how the formation of a variety of partnerships, spanning public, private and voluntary sectors, has radically regenerated the City of Stoke-on-Trent in the UK, bringing major improvements for the city’s physical and social environments. A second case study features Medecins Sans Frontieres (Doctors without Borders)
Narconomics: How to run a drug cartel
Tom Wainwright, The Economist's Britain editor and former Mexico correspondent, explores the parallels between the $300 billion illegal drugs business and the corporate world, from franchising to corporate social responsibility
1.2.1 Rounding to the nearest hundred You will probably think to yourself that the coat shown costs about £300. £290 is considerably closer to £300 than it is to £200, so £300 is a reasonable approximation. In this case, 290 has been rounded up to 300. Similarly, 208 would be rounded down to 200 because it is closer to 200 than it is to 300. Both numbers have been rounded to the nearest hundred pounds. When rounding to the nearest hundred, anything below fifty rounds down. So 248 rounds to 200. Anything o
1.4.5 M is for Method Method is about the way in which a piece of information is produced. This is quite a complex area as different types of information are produced in different ways. These are a few suggestions to look out for: Opinions - A lot of information is based on the opinion of individuals. They may or not be experts in their field (see P for Provenance) but the key message is to be clear that it is just an opinion and must be valued as such. Research - You don't have to be a
2.6 Division of complex numbers The second of the conjugate–modulus properties enables us to find reciprocals of complex numbers and to divide one complex number by another, as shown in the next example. As for real numbers, we cannot find a reciprocal of zero, nor divide any complex number by zero. Introduction This unit is from our archive and it is an adapted extract from Human biology and health (SK220), which is no longer in presentation. If you wish to study formally at The Open University, you may wish to explore the courses we offer in this curriculum area. To be able to understand the importance of the environment for our health, we n How Sunburns Work - How Stuff Works 2.5 Wavelength So far we have seen that sound is a pressure wave, and that the spacing of the pressure variations is related to the period of vibration of the source. A graphical representation of the pressure wave from a tuning fork closely approximates to a certain type of wave known as a sine wave. If we freeze the pressure wave as a snap shot in time, the variations in pressure with distance from the tuning fork can be plotted as a sine wave. The vertical axis is pressure so the crest 2.2.1 Try some yourself Here is a poor example of mathematical writing, although the final answer is correct. Rewrite it, correcting the layout and the mathematical punctuation. David Gornoski on Anthropology and Liberty David Gornoski is a Christian libertarian writer, frequently featured at The American Conservative a Learning to teach: mentoring and tutoring student teachers 7.1 Overview Scottish literature is defined as literature written in Scotland or by Scottish writers, but is there such a thing as a literary and cultural identity which is distinctively Scottish? This section of the OpenLearn Scotland collection is designed to stimulate thinking on the relationship between writing and identity. Learners are introduced to the work of two enormously influential figures in Scottish literature and culture: Sorley MacLean and Jackie Kay, the contemporary Scottish poet a Resurrecting Marx The collapse of socialism didn't deter the Marxists, who moved on to invent new rationales for their system. But David Gordon has caught up with them, and used the knife of the Austrian School to cut their theories to pieces. A masterful demonstration of philosophical technique. The book in particular addresses the arguments of the analytical Marxists: G.A. Cohen, Jon Elster, and John Roemer. 2.4.3 Sulfur (S) Most proteins contain about 1% sulfur, which occurs in the side-chains (R groups) of two of the protein-forming amino acids, methionine and cysteine. Cysteine is particularly important in proteins such as collagen (found in bone, tendons, cartilage and skin) and keratin (found in hair and nails, as well as skin). Mexican Spanish Survival Phrases #16 - Mexican Restaurant, Part 4: Placing an Order Song: Chori Chori Hum Gori Se A Tour of the White House with Jackie Kennedy (Pt. 4) Importing a PSD File (5 of 10)
Example 2
Why do some people tan, and others burn? Learn why skin works the way that it does. Explains what happens after your skin gets too much sun. Grades 5-12. (00:58)
Activity 2
By: David Gornoski, Jeff Deist
This is the second of four courses which comprise the course Learning to teach. Traditionally student teachers are supported by a mentor in school and a tutor from a university. Both play distinctive and important parts in the teachers development. This free course, Mentoring and tutoring student teachers, examines each role in detail and explores the similarities and distinctions between the two roles. Whether you are a tutor or a mentor, effective teacher education relies on all partners worki
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Learn Mexican Spanish travel phrases with SpanishPod101.com! A little Mexican Spanish can go such a long way! Whether you’re traveling, visiting, or sightseeing, SpanishPod101.com has all the essential travel phrases just for you! In this lesson we cover a high frequency Mexican Spanish phrase that you’ll surely find useful on [...]
Hindi songs are fun to listen to. But sometimes they can be difficult to understand. One of our listeners asked for an episode about the song Chori Chori Hum Gori Se from the movie "The Guru". In this lesson Kavitha explains the meanings of the words.
A black and white video tape of a tour of the White House with Jackie Kennedy by CBS in 1962.
Learn how to import complex Photoshop PSD files while keeping the text and graphics editable.
