ScienceDaily: Top Science News

---

• Sea-level rise drives shoreline retreat in Hawaii
• Whales get a tan, too: Pigment in whale skin increases in response to sunshine
• New understanding of formation of cilia: Cilia provide mobility to cells, and defects are implicated in many disease
• Researchers a step closer to finding cosmic ray origins
• Jet lag: Why the body clock is slow to adjust to time changes
• Ultracold big bang experiment successfully simulates evolution of early universe

Sea-level rise drives shoreline retreat in Hawaii Posted: 30 Aug 2013 06:24 AM PDT Researchers show that sea-level rise is a primary factor driving historical shoreline changes (that is, beach erosion or accretion) in Hawaii and that historical rates of shoreline change are about two orders of magnitude greater than sea-level rise.

Whales get a tan, too: Pigment in whale skin increases in response to sunshine Posted: 30 Aug 2013 06:24 AM PDT Scientists have revealed the pigment in whale skin increases in response to sunshine, just as we tan. Some species get darker with sun exposure, incurring DNA damage in their skin just like us and they also accumulate damage to the skin as they get older. This provides a better understanding of their protective mechanisms and may offer new avenues to explore for treating human skin cancers.

New understanding of formation of cilia: Cilia provide mobility to cells, and defects are implicated in many disease Posted: 30 Aug 2013 06:17 AM PDT Tiny hair-like structures (cilia) are found on the surface of most cells. Cilia are responsible for the locomotion of cells (e.g. sperm cells), they process external signals and coordinate the correct arrangement of the inner organs during the development of an organism. For proper assembly and function of cilia, they need to be supplied with the appropriate building blocks. Scientists have now identified the mechanism of how Tubulin, the main building block of cilia, is transported within the cilium.

Researchers a step closer to finding cosmic ray origins Posted: 30 Aug 2013 06:16 AM PDT The origin of cosmic rays in the universe has confounded scientists for decades. But new information that may help unravel the longstanding mystery of exactly how and where they are produced.

Jet lag: Why the body clock is slow to adjust to time changes Posted: 29 Aug 2013 09:40 AM PDT New research in mice reveals why the body is so slow to recover from jet lag. The study identifies a target for the development of drugs that could help us to adjust faster to changes in time zone.

Ultracold big bang experiment successfully simulates evolution of early universe Posted: 29 Aug 2013 06:28 AM PDT Physicists have reproduced a pattern resembling the cosmic microwave background radiation in a laboratory simulation of the Big Bang, using ultracold cesium atoms in a vacuum chamber.

You are subscribed to email updates from ScienceDaily: Top Science News To stop receiving these emails, you may unsubscribe now.	Email delivery powered by Google
Google Inc., 20 West Kinzie, Chicago IL USA 60610