ScienceDaily: Latest Science News |
- When it comes to mammals, how big is too big?
- Mapping translation sites in the human genome
- Global cooling as significant as global warming, study of marine ecosystems during Cretaceous period shows
- Star-shaped macromolecule grabs large anions
- Noble gases hitch a ride on hydrous minerals
- Obese male mice father offspring with higher levels of body fat
- Advances in genetic sequencing diagnose Paralympic hopeful's rare condition
- 'Chase and run' cell movement mechanism explains process of metastasis
| When it comes to mammals, how big is too big? Posted: 16 Jun 2013 06:07 PM PDT Mammals vary enormously in size, from weighing less than a penny to measuring more than three school buses in length. Some groups of mammals have become very large, such as elephants and whales, while others have always been small, like primates. A new theory provides an explanation for why and how certain groups of organisms are able to evolve gigantic sizes, whereas others are not.  |
| Mapping translation sites in the human genome Posted: 16 Jun 2013 12:52 PM PDT Scientists have produced the first genome-wide investigation of cap-independent translation, identifying thousands of mRNA sequences that act as Translation Enhancing Elements, which are RNA sequences upstream of the coding region that help recruit the ribosome to the translation start site.  |
| Posted: 16 Jun 2013 12:52 PM PDT An international study confirms the link between global cooling and a crash in the marine ecosystem similar to that witnessed as a result of global warming.  |
| Star-shaped macromolecule grabs large anions Posted: 16 Jun 2013 12:52 PM PDT Chemists have created a symmetrical, five-sided macrocycle that is easy to synthesize and has characteristics that may help expand the molecular tool box available to researchers in biology, chemistry and materials sciences.  |
| Noble gases hitch a ride on hydrous minerals Posted: 16 Jun 2013 12:52 PM PDT The six noble gases do not normally dissolve into minerals, leaving earth scientists to wonder how they are recycled back into the Earth. Now, researchers have discovered that the lattice structure of minerals such as amphibole is actually quite capable of dissolving noble gases. Understanding how noble gases cycle from deep within the Earth to the atmosphere and back could help scientists track the cycling of other volatiles like water and carbon.  |
| Obese male mice father offspring with higher levels of body fat Posted: 16 Jun 2013 12:52 PM PDT Male mice who were fed a high-fat diet and became obese were more likely to father offspring who also had higher levels of body fat, a new study finds. The effect was observed primarily in male offspring, despite their consumption of a low-fat diet, scientists reported.  |
| Advances in genetic sequencing diagnose Paralympic hopeful's rare condition Posted: 16 Jun 2013 12:52 PM PDT National Paracycling Champion Tom Staniford has an extremely rare condition which, until now, has puzzled his doctors. He is unable to store fat under his skin -- yet has type 2 diabetes -- and suffered hearing loss as a child. Now, thanks to advances in genome sequencing, an international research team has identified Tom's condition and pinpointed the single genetic mutation that causes it.  |
| 'Chase and run' cell movement mechanism explains process of metastasis Posted: 16 Jun 2013 12:50 PM PDT A mechanism that cells use to group together and move around the body -- called 'chase and run' -- has been described for the first time by scientists.  |
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