ScienceDaily: Top Science News |
- How smells stick to your memories: Your nose can be a pathfinder
- Ancient shark fossil reveals new insights into jaw evolution
- Searching for dark energy with neutrons: With neutrons, scientists can now look for dark energy in the lab
- Sperm meets egg: Protein essential for fertilization discovered
- Scientists re-define what's healthy in newest analysis for human microbiome project
- Scientists achieve first direct observations of excitons in motion
- Warm U.S. West, cold East: 4,000-year pattern; Global warming may bring more curvy jet streams during winter
| How smells stick to your memories: Your nose can be a pathfinder Posted: 16 Apr 2014 10:33 AM PDT Waves in your brain make smells stick to your memories and inner maps. Researchers have recently discovered the process behind this phenomenon. The brain, it turns out, connects smells to memories through an associative process where neural networks are linked through synchronized brain waves of 20-40 Hz.  |
| Ancient shark fossil reveals new insights into jaw evolution Posted: 16 Apr 2014 10:33 AM PDT The skull of a newly discovered 325-million-year-old shark-like species suggests that early cartilaginous and bony fishes have more to tell us about the early evolution of jawed vertebrates -- including humans -- than do modern sharks, as was previously thought. The new study shows that living sharks are actually quite advanced in evolutionary terms, despite having retained their basic 'sharkiness' over millions of years.  |
| Posted: 16 Apr 2014 10:33 AM PDT It does not always take a huge accelerator to do particle physics: First results from a low energy, table top alternative takes validity of Newtonian gravity down by five orders of magnitude and narrows the potential properties of the forces and particles that may exist beyond it by more than one hundred thousand times. Gravity resonance spectroscopy is so sensitive that it can now be used to search for Dark Matter and Dark Energy.  |
| Sperm meets egg: Protein essential for fertilization discovered Posted: 16 Apr 2014 10:32 AM PDT Interacting proteins on the surface of the sperm and the egg have been discovered by researchers. These are essential to begin mammalian life. These proteins, which allow the sperm and egg to recognize one another, offer new paths towards improved fertility treatments and the development of new contraceptives.  |
| Scientists re-define what's healthy in newest analysis for human microbiome project Posted: 16 Apr 2014 10:31 AM PDT A new look at the Human Microbiome Project shows wide variation in the types of bacteria found in healthy people. Based on their findings, there is no single healthy microbiome. Rather each person harbors a unique and varied collection of bacteria that's the result of life history as well their interactions with the environment, diet and medication use.  |
| Scientists achieve first direct observations of excitons in motion Posted: 16 Apr 2014 06:08 AM PDT A quasiparticle called an exciton -- responsible for the transfer of energy within devices such as solar cells, LEDs, and semiconductor circuits -- has been understood theoretically for decades. But exciton movement within materials has never been directly observed. Now scientists have achieved that feat, imaging excitons' motions directly. This could enable research leading to significant advances in electronics, they say, as well as a better understanding of natural energy-transfer processes, such as photosynthesis.  |
| Posted: 16 Apr 2014 06:03 AM PDT Last winter's curvy jet stream pattern brought mild temperatures to western North America and harsh cold to the East. A new study shows that pattern became more pronounced 4,000 years ago, and suggests it may worsen as Earth's climate warms.  |
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