Guest Post – Page 617 – Shamskm: A site to exchange knowledge and solutions

An Ancient Biosonar Sheds New Light on the Evolution of Echolocation in Toothed Whales

By Guest PostMay 9, 2013Natureaarhus university, acoustic monitoring, ancient biosonar, aquatic mammals, Bangladesh, biosonar signals, bottlenose dolphin, denmark, earth, evolution of echolocation, evolutionary process, frants havmand jensen, freshwater, freshwater cetaceans, freshwater dolphins, ganges river dolphins, hole, low frequent click, mangrove forest, marine dolphins, marine environments, oceanographic institution, oldest species, peter teglberg madsen, platanistidae family, river habitats, river systems, toothed whales, woods

Some thirty million years ago, Ganges river dolphins diverged from other toothed whales, making them one of the oldest species of aquatic mammals that use echolocation, or biosonar, to navigate and find food. This also makes them ideal subjects for scientists working to understand the evolution of echolocation among toothed whales.

New research, led by Frants Havmand Jensen, a Danish Council for Independent Research | Natural Sciences postdoctoral fellow at Woods Hole Oceanographic Institution, shows that freshwater dolphins produce echolocation signals at very low sound intensities compared to marine dolphins, and that Ganges river dolphins echolocate at surprisingly low sound frequencies. The study, “Clicking in shallow rivers,” was published in the journal PLOS ONE. (more…)

Science Xplained: Ice cream chemistry

By Guest PostMay 8, 2013Scienceainissa ramirez, avalanches, how ice freezes, ice cream, ice cream chemistry, knowledge, liquid nitrogen, mechanical engineering, science xplained, surface of neptune

Ainissa Ramirez, associate professor of mechanical engineering, describes the science behind a tasty bit of chemistry — ice cream. She shows how to make ice cream using liquid nitrogen, which is as cold as the surface of Neptune, and describes why these cold temperatures makes ice cream, creamier. She demonstrates how our knowledge of how […]

New book explores Harry Truman’s record on civil liberties

By Guest PostMay 8, 2013Politicsalger hiss, american freedoms, american government, american people, american political system, american politics, american principles, americans, anti communists, civil liberties, cold war, constitution, democrat controlled senate, fbi, george w. bush, global peace, harry truman, house, internal security subcommittee, issue, j edgar hoover, japanese americans, john s service, joseph mccarthy, justice department, key west, liberty and security, loyalty program, marshall plan, national security system, nato, new book, Obama, policy, president eisenhower, red scare, richard kirkendall, richard nixon, senator joe mccarthy, smith act case, unamerican activities committee, university of washington, uw today, violation, war in korea, world war

Richard Kirkendall is a University of Washington professor emeritus of history and editor of the new book “Civil Liberties and the Legacy of Harry S. Truman.” He answered a few questions about the book for UW Today.

Q: What’s the scope of the book?

A: The book surveys the civil liberties issue during the Truman presidency of 1945-1953, an especially important time in the history of this essential feature of the American political system.

The book begins with two chapters on Truman as a civil libertarian, one on his identification of himself, the other on his relations with Japanese-Americans, the victims during World War II of a major violation of American principles. (more…)

Breastfeeding: Not only for young teens

By Guest PostMay 8, 2013Healthbirth control, bottle feeding, breast cancer, breast milk, breastfeeding, ovarian cancer, teen mom

When a teen mom is considering breastfeeding, it may be a tough task for her to break misconceptions, she has about breastfeeding. For example, many teens prefer bottle feeding as a healthier choice over breast feeding. They also believe that their breasts will lose their shape and it is “old school.” Teen moms, just like adults consider many factors when choosing breastfeeding. (more…)

Pride, prejudice and strategic thinking: Jane Austen wrote the book on game theory

By Guest PostMay 8, 2013Sciencegame theorist, game theory, jane austen, strategic maneuvering, strategic thinking, strategically adept characters, theory of games, zero sum game

Quiz: This beautiful mind was promoting game theory long before Cold War think tanks used mathematics to understand strategic maneuvering. Plotting, as a result, has never been the same. (more…)

Reducing arsenic in food chain

By Guest PostMay 8, 2013Environmentarsenic, arsenic contamination, arsenic in rice, arsenic uptake, exposure to arsenic, food chain, iron barrier, rice roots, soil bacterium

Soil may harbor answer to reducing arsenic in rice

Harsh Bais and Janine Sherrier of the University of Delaware’s Department of Plant and Soil Sciences are studying whether a naturally occurring soil bacterium, referred to asUD1023 because it was first characterized at the University, can create an iron barrier in rice roots that reduces arsenic uptake. (more…)

Building the intelligent car of the future

By Guest PostMay 7, 2013Technologyauto pc, automotive industry, babe ruth, california, carmakers, clarion, data, david kelley, david walker, death valley, duke ellington, Environment, environmental conditions, future, intelligent car, jay loney, john hendricks, melissa quintanilha, Microsoft, microsoft tbox, model, northern sweden, pranish kumar, promised land, Technology, windows embedded automotive, windows update

Microsoft: Working with automotive industry to design an updateable car that’s easier to use and responds to the driver’s needs.

Microsoft’s Pranish Kumar and his team work to develop reliable in-car experiences, not by sitting at a desk but by working behind the wheel of a fleet of test vehicles. (more…)

NASA Opens New Era in Measuring Western U.S. Snowpack

By Guest PostMay 7, 2013Environmentrunoff of snowpacks, snow water equivalent, snowmelt runoff, snowmelt season, snowpack volume

PASADENA, Calif. – A new NASA airborne mission has created the first maps of the entire snowpack of two major mountain watersheds in California and Colorado, producing the most accurate measurements to date of how much water they hold. (more…)

Author Archives: Guest Post