ScienceDaily: Top Environment News |
- Most complex synthetic biology circuit yet: New sensor could be used to program cells to precisely monitor their environments
- 2010 Korea bomb 'tests' probably false alarms, says study
- Greenhouse gas emissions mapped to building, street level for U.S. cities
- Computational model identifies potential pathways to improve plant oil production
- New tool for making genetic engineering of microbial circuits reliably predictable
- What might have caused recent increase of coral diseases in the Caribbean?
- River Thames invaded with foreign species
- Swimming with hormones: Researchers unravel ancient urges that drive the social decisions of fish
- Go west, young lion: New study shows mountain lions dispersing from Nevada to California
- Vast differences in polar ocean microbial communities
- Research on enhanced transmissibility in H5N1 influenza: Should the moratorium end?
- Healthy mom with lots of help key to thriving brood, wolf study shows
- Marine worms reveal the deepest evolutionary patterns
- Regenerated lizard tails are different from originals, researchers discover
- Nearly 50% of retail firewood infested with insects, study finds
| Posted: 09 Oct 2012 10:15 AM PDT Using genes as interchangeable parts, synthetic biologists design cellular circuits that can perform new functions, such as sensing environmental conditions. However, the complexity that can be achieved in such circuits has been limited by a critical bottleneck: the difficulty in assembling genetic components that don't interfere with each other. Unlike electronic circuits on a silicon chip, biological circuits inside a cell cannot be physically isolated from one another. |
| 2010 Korea bomb 'tests' probably false alarms, says study Posted: 09 Oct 2012 09:17 AM PDT This spring, a Swedish scientist sparked international concern with a journal article saying that radioactive particles detected in 2010 showed North Korea had set off at least two small nuclear blasts -- possibly in experiments designed to boost yields of much larger bombs. Separate claims surfaced that intelligence agencies suspected the detonations were done in cooperation with Iran. Now, a new paper says the tests likely never took place -- or that if they did, they were too tiny to have any military significance. |
| Greenhouse gas emissions mapped to building, street level for U.S. cities Posted: 09 Oct 2012 09:16 AM PDT Researchers have developed a new software system capable of estimating greenhouse gas emissions across entire urban landscapes, all the way down to roads and individual buildings. Until now, scientists quantified carbon dioxide emissions at a much broader level. "Hestia" combines extensive public database "data-mining" with traffic simulation and building-by-building energy-consumption modeling. |
| Computational model identifies potential pathways to improve plant oil production Posted: 09 Oct 2012 08:24 AM PDT Using a computational model they designed to incorporate detailed information about plants' interconnected metabolic processes, scientists have identified key pathways that appear to "favor" the production of either oils or proteins. The research may point the way to new strategies to tip the balance and increase plant oil production. |
| New tool for making genetic engineering of microbial circuits reliably predictable Posted: 09 Oct 2012 08:24 AM PDT Researchers have developed an adapator that makes the genetic engineering of microbial components substantially easier and more predictable. |
| What might have caused recent increase of coral diseases in the Caribbean? Posted: 09 Oct 2012 08:21 AM PDT Marine diseases are killing coral populations all over the world, threatening the livelihoods of millions of people who depend on reefs for food and protection from storms. Are these diseases new and unprecedented infections, or do they erupt from the stresses of environmental change? |
| River Thames invaded with foreign species Posted: 09 Oct 2012 07:21 AM PDT The second longest river in the UK, the River Thames, contains 96 non-native species, making it one of the most highly invaded freshwater systems in the world. |
| Swimming with hormones: Researchers unravel ancient urges that drive the social decisions of fish Posted: 09 Oct 2012 07:13 AM PDT Researchers have discovered that a form of oxytocin—the hormone responsible for making humans fall in love—has a similar effect on fish, suggesting it is a key regulator of social behaviour that has evolved and endured since ancient times. |
| Go west, young lion: New study shows mountain lions dispersing from Nevada to California Posted: 09 Oct 2012 06:32 AM PDT A new study has identified two genetically distinct populations of mountain lions in California and Nevada and discovered -- to the surprise of scientists -- that portions of Nevada's Great Basin Desert are serving as a "source" for animals moving west to the Sierra Nevada mountains shared with California. |
| Vast differences in polar ocean microbial communities Posted: 09 Oct 2012 06:30 AM PDT An international team of scientists has found that a clear difference exists between the marine microbial communities in the Southern and Arctic oceans. Their report contributes to a better understanding of the biodiverisity of marine life at the poles and its biogeography. |
| Research on enhanced transmissibility in H5N1 influenza: Should the moratorium end? Posted: 09 Oct 2012 06:30 AM PDT In a series of commentaries, prominent microbiologists and physicians argue the cases both for and against lifting a voluntary moratorium on experiments to enhance the ability of the H5N1 virus to move from mammal to mammal, so-called "gain-of-function" research, and discuss the level of biosecurity that would be appropriate for moving that research forward. |
| Healthy mom with lots of help key to thriving brood, wolf study shows Posted: 09 Oct 2012 06:30 AM PDT What does it take to raise successful, self-sufficient offspring? A healthy mom with lots of in-house help. While this advice may benefit humans, a recent study actually focuses on another group of large, social mammals -- namely, wolves. |
| Marine worms reveal the deepest evolutionary patterns Posted: 09 Oct 2012 06:25 AM PDT Scientists have revealed new findings on the evolutionary relationships and structure of priapulids -- a group of carnivorous mud-dwelling worms living in shallow marine waters. |
| Regenerated lizard tails are different from originals, researchers discover Posted: 09 Oct 2012 06:24 AM PDT Just because a lizard can grow back its tail, doesn't mean it will be exactly the same. Researchers examined the anatomical and microscopic make-up of regenerated lizard tails and discovered that the new tails are quite different from the original ones. |
| Nearly 50% of retail firewood infested with insects, study finds Posted: 08 Oct 2012 10:42 AM PDT A new study reports that live insects were found in 47% of firewood bundles purchased from big box stores, gas stations and grocery stores in Colorado, New Mexico, Utah and Wyoming. |
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