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New features in Reading Horizons Discovery™ software help educators monitor standards achievement and teach vocabulary while increasing student motivation and engagement. North
DALLAS, April 1, 2014 /PRNewswire/ -- Voyager Sopris Learning((TM)), provider of a comprehensive suite of evidence-based instruction, assessments, and professional services, is pleased to announce
WISCONSIN RAPIDS, Wis., March 28, 2014 /PRNewswire/ -- Renaissance Learning, a leading provider of online assessments and data-powered teaching and learning solutions, announced today that the
Scientists searching for habitable planets beyond Earth shouldn’t overlook F-type stars in favor of their more abundant, smaller and cooler cousins, according to new research from University of Texas at Arlington physicists.
New theory advanced for how collapsed stars become polluted -- pointing to ominous fate that awaits planet Earth.
Predictability Study Finds Strong Correlation Between ISIP Reading, Texas Reading Assessment Dallas, TX (PRWEB) March 25, 2014 Student results on Istation’s
At Hong Kong FILMART, LifeStyle TV (LSTV), launched in January via AsiaSat satellite to Asia Pacific, has announced that they will produce their first men’s awards, “2014 LifeStyle TV Men’s
3.3 million Americans are expected to live in the nation's nearly 16,000 nursing homes in 2014.
The DIY finger-prick technique opens door for extensive stem cell banking
An astrophysicist has created a new three-dimensional model that provides new insight into the death throes of supernovae. The model is the first to represent the start of a supernova collapse in 3D.
The prominent feature that allows for the existence of life on Earth is the Sun. Radiation from our closest star provides heat and energy to our planet, driving biological processes and providing the necessary conditions for liquid water to naturally exist. But our Sun is only but one star in this vast Universe. And as it turns out, most stars are quite different than the one that illuminates our day. For this reason, scientists have, for hundreds of years, attempted to study the other...
UV Astronomy -- UV astronomy is the branch of astronomy and astrophysics which deals with objects visible in ultraviolet (UV) radiation. UV radiation ranges approximatively from 10nm (extreme UV) to 380nm (near UV). Ultraviolet line spectrum measurements are used to discern the chemical composition, densities, and temperatures of interstellar medium, and the temperature and composition of hot young stars. UV observations can also provide essential information about the evolution of...
Hertzsprung-Russell Diagram -- In stellar astronomy, the Hertzsprung-Russell diagram (H-R diagram) shows the relation between the absolute magnitude and the spectral types of stars. It was invented around 1910 by Ejnar Hertzsprung and Henry Norris Russell. There are two equivalent forms. One is the observer's form which plots the color of the star on one axis and the absolute magnitude on the other axis. The theoretician's form plots the temperature of the star on one axis and the...
X-ray Burster -- X-ray bursters are a class of binary stars which are luminous in X-rays. They contain a neutron star and a low-mass companion star. The companion fills its Roche lobe and therefore the neutron star is accreting matter from it. The inflowing gas forms an accretion disk around the neutron star. Sometimes X-ray bursters show a sudden increase in their X-ray luminosity, called X-ray burst. All properties of the X-ray bursts can be explained assuming that they result from...
Variable Star -- Most stars are of nearly constant luminosity. Our own Sun is a good example which goes through practically no measurable variation in brightness. There are, however, stars which do vary in brightness, called variable stars. They fall into two main groups: Intrinsic variables These are stars which have intrinsic variations in brightness, that is the star itself gets brighter and dimmer. There are many types of intrinsic variables, the main types being: -- Mira...
- To swell, as grain or wood with water.
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