ScienceDaily: Top Environment News |
- Mountain meadows dwindling in Pacific Northwest, U.S. due to climate change, study suggests
- Giving fluorescence microscopy new power to study cellular transport
- Were dinosaurs destined to be big? Testing Cope's rule
- Disaster defense: Balancing costs and benefits
- Developmental bait and switch: Enzyme responsible for neural crest cell development discovered
- Climate change affecting overall weather patterns, may affect water availability, in California
- Biochemists discover new mechanism in ribosome formation: Protein controls synchronized transport of ribosome factors
| Mountain meadows dwindling in Pacific Northwest, U.S. due to climate change, study suggests Posted: 02 Nov 2012 05:51 PM PDT Some high mountain meadows in the Pacific Northwest are declining rapidly due to climate change, a study suggests, as reduced snowpack, longer growing seasons and other factors allow trees to invade these unique ecosystems that once were carpeted with grasses, shrubs and wildflowers.  |
| Giving fluorescence microscopy new power to study cellular transport Posted: 02 Nov 2012 12:20 PM PDT The ability of fluorescence microscopy to study labeled structures like cells has now been empowered to deliver greater spatial and temporal resolutions that were not possible before, thanks to a new method. Using this method, they were able to study the critical process of cell transport dynamics at multiple spatial and temporal scales and reveal, for the first time, properties of diffusive and directed motion transport in living cells.  |
| Were dinosaurs destined to be big? Testing Cope's rule Posted: 02 Nov 2012 12:19 PM PDT In the evolutionary long run, small critters tend to evolve into bigger beasts -- at least according to the idea attributed to paleontologist Edward Cope, now known as Cope's Rule. Using the latest advanced statistical modeling methods, a new test of this rule as it applies dinosaurs shows that Cope was right -- sometimes.  |
| Disaster defense: Balancing costs and benefits Posted: 02 Nov 2012 12:19 PM PDT Do costly seawalls provide a false sense of security in efforts to control nature? Would it be better to focus on far less expensive warning systems and improved evacuation procedures? A father-son team have developed new strategies to defend society against natural disasters like Hurricane Sandy and the effects of climate change. The approach, which considers costs and benefits while identifying the best solution, is based on a mathematical technique called optimization.  |
| Developmental bait and switch: Enzyme responsible for neural crest cell development discovered Posted: 02 Nov 2012 08:54 AM PDT During the early developmental stages of vertebrates, cells undergo extensive rearrangements, and some cells migrate over large distances to populate particular areas and assume novel roles as differentiated cell types. A new study provides new clues about this process -- at least in the case of neural crest cells, which give rise to most of the peripheral nervous system, to pigment cells, and to large portions of the facial skeleton.  |
| Climate change affecting overall weather patterns, may affect water availability, in California Posted: 02 Nov 2012 06:20 AM PDT Climate change is affecting overall weather patterns, scientists say, and could affect water availability in California.  |
| Posted: 02 Nov 2012 05:46 AM PDT A new mechanism in the formation of ribosomes has been discovered. Scientists now describe a heretofore uncharacterized protein that plays a specific role in ribosome assembly in eukaryotes, organisms whose cells contain a cell nucleus. This protein makes sure that specific factors required for ribosome synthesis are transported together, like hitchhikers, into the nucleus to the site of assembly.  |
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