Nasdaq makes rival bid for NYSE
Nasdaq OMX officially offered a competing bid for NYSE Euronext at $11.3 billion in cash and stock, a 19 percent premium to Deutsche Boerse's offer.
When Computers Changed the World from the Revolution Exhibition
"When Computers Changed the World" is just one of more than 100 videos in the Computer History Museum's new exhibition: "Revolution: the First 2000 Years of Computing." In the span of a single lifetime, computers have gone from large, incredibly expensive and rare devices to small, low-cost, ubiquitous tools that we can't imagine living without. Yet, few people know the history of how this came to be. Revolution: The First 2000 Years of Computing is a rich, multimedia exhibition that traces the
Handbook of Operational Amplifier Applications
The Handbook of Operational Amplifier Application is a complete and exhaustive compendium of Op Amp information. Chapters start with the basic electronics of the internal circuitry of op amps, feedback and analysis of operation followed by ideal and practical op amps. The remaining chapters provide numerous application circuits.
A Pictorial Representation of Product Operator Formalism: Non-Classical Vector Diagrams for Multidim
This site presents a pictorial description of the product operator formalism using a non-classical vector approach. This approach allows for the representation of any arbitrary multidimensional or heteronuclear NMR experiment. A description of a complete set of 16 vector representations for weakly-coupled two-spin (I=1/2) systems is given followed by an extension of this set to three-spin systems. Finally the concepts of coherence transfer, multiple quantum spectroscopy and phase cycling are ill
Green Chemistry (2nd edition)
Measurement science used to characterize environmentally important species is a central aspect of this textbook and accompanying lecture support/PowerPoint presentations. In addition to discussing the hows and whys of measurement, the discussion of measurements up to 2007 as related to the future of the environment provides a context for learning the material.
Principal Component Analysis
This site provides an introduction to principal component analysis, beginning with a glossary of important terms before taking the reader through the process of completing a principal component analysis. One limitation to the site is its reliance on Minitab and SPSS for calculations. Users without access to these programs can reproduce the calculations using other software packages, such as the freeware program R. Prior knowledge of basic statistics is assumed; thus, the site is most appropriate
Virtual Crime Scene-Autopsy of a Murder
This site is designed to explore the interaction of crime scene investigation and forensic science Visitors are taken to a crime site where a murder took place. Relevant items of physical evidence are identified and the viewer is allowed to transport each item into a virtual crime. In the laboratory the viewer is allowed to select the appropriate technology to examine the selected item of evidence. Explanations are provided to educate the viewer on the theory and applications of a variety of for
Cooperative Learning, Values, and Culturally Plural Classrooms
This webpage provides an introduction to cooperative learning by David and Roger Johnson who developed the technique. The article provides an overview of the cooperative learning method, discusses its educational benefits, and provides assessment data for its efficacy. The article also provides archival references to their work and others. As such the article is an invaluable resource for faculty interested in developing and implementing cooperative learning activities in their own classrooms
Fundamental measurement PowerPoint
This site contains good images of basic general chemistry lab equipment and how to use them to make measurements (graduated cylinders, burets, thermometers, and balances). It could be useful for introducing students to laboratory work and measurements.
Bragg's Law and Diffraction
This site presents an introduction to Bragg\'s Law of Diffraction, along with how diffraction of x-rays provides information on atoms in crystalline material. An Applet allows the user to vary the wavelength and angle of incidence of radiation to a surface, along with the distance between layers of the material to demonstrate the conditions necessary for constructive interference, or a Bragg\'s condition. The derivation of Braggs law is also explained.
The Endurance: Shackleton's Legendary Antarctic Expedition - Exhibition
This Web site, created to complement an American Museum of Natural History exhibition, has a thorough reporting of Shackleton's 1914 Antarctic voyage. The Exhibition is an overview of the traveling exhibit, which features photographs, diary excerpts, artifacts, and the actual lifeboat from the expedition, as well as an interactive simulation.
Kindler Syndrome described by Theresa Kindler in 1954 is probably a variant of hereditary acrokeratotic Poikiloderma in which Poikiloderma is preceded by a tendency to blistering following traumatic blisters. There are few ultrastructural studies on this syndrome. The ultrastructural level of blister formation has not been well characterized. Prof. Camillo O. DI CICCO, M.D.Presented to VIth Congress of the European Society for Pediatric Dermatology.
Mahara Tutorial 3: Profil (de)
Screencast für die Verwendung eines E-Portfolio Tools (Mahara) für das EU-Projekt MOSEP. Teil 3: Profil.
You Again? Reintroducing and Introducing Species
This BioBulletin Web site takes an in-depth look at the work involved in reintroducing and introducing species. The site includes text, videos, photographs, and interviews with key scientists. What Is Being Moved and Why? outlines the three motives for relocating members of a species for release into the wild.
3 Studying mammals The term mammal encompasses a huge variety of animals, including humans. But what makes a mammal a mammal? This unit explores some of the features, such as reproduction, lactation and thermoregulation methods, that mammals have in common. It is the first in a series of 10 ‘Studying mammals’ units.
The term mammal encompasses a huge variety of animals, including humans. But what makes a mammal a mammal? This unit explores some of the features, such as reproduction, lactation and thermoregulation methods, that mammals have in common. It is the first in a series of 10 ‘Studying mammals’ units.
Next steps After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions:
After completing this unit you may wish to study another OpenLearn Study Unit or find out more about this topic. Here are some suggestions:
Institute of Politics: General Raymond T. Odierno: Commanding General, Joint Forces Command
General Raymond Odierno, Commander of the United States Joint Forces Command, spoke to a capacity audience about the importance of leadership in a complex environment.
The Prevention Convention
This article from our family magazine series has tips, a "catchy" tune, and a comic about how to avoid infectious diseases."The Prevention Convention" has 10 tips for how to avoid infectious diseases, including "Say 'NO' to dough!" and "Wash 'em before you eat 'em!" "Wash Your Hands" sings the praises of lathering up."In a public bathroom, somewhere in America..." illustrates what separates "a real washout" from "a world-class washer."
Sharks: Did You Know?
This collection of fun facts is from Sharks and Rays: Myth and Reality, part of the Museum's Seminars on Science series. These distance-learning courses are designed to help educators meet the new national science standards. A brief explanation page is provided for the six fun facts: Did you know sharks can gestate for up to two years? Did you know sharks and rays don't have bones? Did you know sharks and rays are cosmopolitan in distribution? Did you know an individual shark can produce upwards
Liquid Oxygen and Nitrogen
Describes some interesting properties in cryogenic gas.