Author Archives: Guest Post

Studying The Evolution of Life’s Building Blocks

VANCOUVER, British Columbia — Studying the origin of life at its building blocks offers a unique perspective on evolution, says a researcher at Michigan State University.

Robert Root-Bernstein, MSU physiology professor, will answer the question of why a physiologist studies the origin of life at the annual meeting of the American Association for the Advancement of Science Feb. 16-20 in Vancouver, British Columbia. (more…)

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Building Blocks of Early Earth Survived Collision that Created Moon

COLLEGE PARK, Md. – Unexpected new findings by a University of Maryland team of geochemists show that some portions of the Earth’s mantle (the rocky layer between Earth’s metallic core and crust) formed when the planet was much smaller than it is now, and that some of this early-formed mantle survived Earth’s turbulent formation, including a collision with another planet-sized body that many scientists believe led to the creation of the Moon. (more…)

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Radiation Generates Cancer Stem Cells From Less Aggressive Breast Cancer Cells

Breast cancer stem cells, thought to be the sole source of tumor recurrence, are known to be resistant to radiation therapy and don’t respond well to chemotherapy.

Now, researchers with the UCLA Department of Radiation Oncology at UCLA’s Jonsson Comprehensive Cancer Center report for the first time that radiation treatment, despite killing half of all tumor cells during every treatment, transforms other cancer cells into treatment-resistant breast cancer stem cells. (more…)

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Economic Forecast

*No silver bullet but hope for economy remains, experts tell audience at UD*

Analogies abounded at the 2012 Economic Forecast, where speakers compared monetary policy to turnpike driving, fiscal policy to an empty toolbox and investing to “finding the least worst house on an unstable block.”

Charles I. Plosser, president and CEO of the Philadelphia Federal Reserve, was one of three featured speakers at the annual event, which was sponsored by Lyons Companies and the University of Delaware’s Center for Economic Education and Entrepreneurship (CEEE) and held Tuesday, Feb. 14, at UD’s Clayton Hall. (more…)

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NASA Map Sees Earth’s Trees in a New Light

PASADENA, Calif. – A NASA-led science team has created an accurate, high-resolution map of the height of Earth’s forests. The map will help scientists better understand the role forests play in climate change and how their heights influence wildlife habitats within them, while also helping them quantify the carbon stored in Earth’s vegetation.

Scientists from NASA’s Jet Propulsion Laboratory, Pasadena, Calif.; the University of Maryland, College Park; and Woods Hole Research Center, Falmouth, Mass., created the map using 2.5 million carefully screened, globally distributed laser pulse measurements from space. The light detection and ranging (lidar) data were collected in 2005 by the Geoscience Laser Altimeter System instrument on NASA’s Ice, Cloud and land Elevation Satellite (ICESat). (more…)

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Teaching Science to The Religious? Focus on How Theories Develop

Brown biology Professor Ken Miller understands that most students are religious. He is too. The way to teach science to religious students is to show how scientific ideas come to be, he says. Students can learn that religious people engage in scientific explorations of nature, and that theories are based on observation and logic, not some anti-religious agenda.

Vicious, winner-take-all competition in nature is an essential pillar of evolutionary theory, but it frequently describes the mindset people have about how, or whether, to teach the subject. Religious students sometimes come to class thinking that science and religion are in deliberate opposition, like two lionesses fighting over a kill. When Brown University biologist and practicing Catholic Kenneth Miller teaches evolution, he also teaches that such a zero-sum mindset just isn’t warranted. (more…)

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