Beginner - Anybody there? When you're walking in a dark quiet alley, and you suddenly hear a weird noise, the first thing you'd probably want to do is run or ask if anybody's there. In today's lesson you will learn how to deal with the latter as well as other useful phrases for such a scenario.
Joshua Landis on the Syrian regmie
The director of the Center for Middle East studies at the University of Oklahoma explains why Syria faces a long struggle
Books of the month: Philanthropy
Our correspondents discuss three new books exploring the nature of philanthropy in a post-recessional world
Genetics Concepts
Genetics is the branch of biology that studies the ways in which hereditary information is passed on from the parents to their offspring. As we study this unit, I will be asking you to visit the following websites to emphasize concepts brought up during class. DNA Structure and Replication Build a DNA molecule Use this website to practice matching up complementary nucleotides in the DNA molecule. How DNA Replicates Take a look at this short video clip that demonstrates how the DNA molecule repli
PediNeuroLogic Exam Quiz
Thirty question quiz covering all six age groups in the PediNeuroLogicExam tutorials. A neuroscience tutorial focusing on those aspects of the pediatric neurological examination that are unique to the child's nervous system, with an emphasis on important neurodevelopmental milestones.
What will you be able to do you on a national holiday?
At the completion of this lesson you will be able to write about your experiences celebrating the national holiday. In the first exercise you will look on a website for activities you can do on that day. Then, you will fill the gaps in an incomplete text and will be given a number of words to construct a proper sentence. Lastly, you will be asked to describe the parade for someone who was absent.
"Development Economics: Macroeconomics, Spring 2009"
" This course emphasizes dynamic models of growth and development. Topics covered include: migration, modernization, and technological change; static and dynamic models of political economy; the dynamics of income distribution and institutional change; firm structure in developing countries; development, transparency, and functioning of financial markets; privatization; and, banks and credit market institutions in emerging markets. This course contributes to the fulfillment of requirements for t
Designing Excel Solutions for the Web: Part 2 In part two of this two-part series, Larry Waldman, Excel Program Manager, talks in detail about how to execute the migration of Excel client solutions to web-based Excel Services solutions. Larry walks through the migration of a sample Excel client application to its new incarnation as a Web-based solution. Along the way, he shows specific code for how to use the Excel Services JavaScript object model. The Excel Services REST API and Excel Web Service were also used to round-out the new web
Great Zoom into Tucson, AZ: The University of Arizona Football Stadium
Using data from different spacecraft and some powerful computer technology, visualizers at the Goddard Space Flight Center present you with a collection of American cities in a way you have never seen them before. Starting with our camera high above the Earth, we rush in towards the surface at what would be an impossible speed for any known vehicle. Passing though layers of atmosphere, the colors of our destinations shimmer with their own unique characteristics, and suddenly we find ourselves fl
"Beginning Costume Design and Construction, Fall 2008"
" This is an intermediate workshop designed for students who have a basic understanding of the principles of theatrical design and who want a more intensive study of costume design and the psychology of clothing. Students develop designs that emerge through a process of character analysis, based on the script and directorial concept. Period research, design, and rendering skills are fostered through practical exercises. Instruction in basic costume construction, including drafting and draping, p
Great Zoom out of Long Beach, CA: The Queen Mary
Using data from different spacecraft and some powerful computer technology, visualizers at the Goddard Space Flight Center present you with a collection of American cities in a way you have never seen them before. Starting with our camera high above the Earth, we rush in towards the surface at what would be an impossible speed for any known vehicle. Passing though layers of atmosphere, the colors of our destinations shimmer with their own unique characteristics, and suddenly we find ourselves fl
Philosophy and Guidelines for Science Demonstrations
List of reasons explaining why chemistry class demonstrations are a good idea, plus guidelines for doing them safely.
Silly Semi-Solids
Groups of students make a polymer out of household items. They then experiment with the polymer to determine its various properties.
A River Ran Through It
Students learn how water is used to generate electricity. They investigate water's potential-to-kinetic energy transformation in hands-on activities about falling water and waterwheels. During the activities, they take measurements, calculate averages and graph results. Students also learn the history of the waterwheel and how engineers use water turbines in hydroelectric power plants today. They discover the advantages and disadvantages of hydroelectric power. In a literacy activity, students l
Sneaking Up On Sneakers
This activity explores why different types of sneakers are used in a variety of common sports. It connects how engineers analyze design needs in sneakers and everyday items. The goal is for students to understand the basics of engineering associated with the design of different types of athletic shoes. Sneakers are one of the most commonly worn shoes in our American culture. They provide comfortable support for our feet as we go about our active lives as students, athletes, educators, and engine
Getting it Right!
In this lesson, students will investigate error. As shown in earlier activities from navigation lessons 1 through 3, without an understanding of how errors can affect your position, you cannot navigate well. Introducing accuracy and precision will develop these concepts further. Also, students will learn how computers can help in navigation. Often, the calculations needed to navigate accurately are time consuming and complex. By using the power of computers to do calculations and repetitive task
EE 120 - Lecture 11 - Signals and Systems
Structure and Interpretation of Systems and Signals - Spring 2007. This course is an introduction to mathematical modeling techniques used in the design of electronic systems. An important keyword here is "mathematical." Subjects we will cover include continous and discrete signals, with applications to audio, images, video, communications, and control; State-based models, beginning with automata and evolving to LTI systems; Frequency domain models for signals and frequency response for systems,
Lumbriculus blood vessel pulsations
Pulsation of the blood vessels of the California blackworm involve small lateral (sideways) capillaries working together with the main vessel to pump blood through the worm.
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