ScienceDaily: Top Environment News |
- Common chemicals linked to osteoarthritis
- First animal model of recent human evolution reveals that mutation for thick hair does much more
- Sewage lagoons remove most -- but not all -- pharmaceuticals
- Understanding why cells stick
- Roots of language in human and bird biology: Genes activated for human speech similar to ones used by singing songbirds
- What green algae are up to in the dark
- Dog spots the dog: Dogs recognize the dog species among several other species on a computer screen
- A glimpse inside the control centers of cell communication
| Common chemicals linked to osteoarthritis Posted: 14 Feb 2013 10:40 AM PST A new study has linked exposure to two common perfluorinated chemicals with osteoarthritis. The study is the first to look at the associations between perfluorooctanoic acid and perfluorooctanesulfonic acid, and osteoarthritis, in a study population representative of the United States. |
| First animal model of recent human evolution reveals that mutation for thick hair does much more Posted: 14 Feb 2013 10:39 AM PST The first animal model of recent human evolution reveals that a single mutation produced several traits common in East Asian peoples, from thicker hair to denser sweat glands, and computer models suggest the variation arose about 30,000 years ago in central China. |
| Sewage lagoons remove most -- but not all -- pharmaceuticals Posted: 14 Feb 2013 09:06 AM PST Many rural communities in the United States use aerated lagoon systems to treat their wastewater. In a new study, researchers determined the effectiveness of rural lagoon systems at removing drugs, chemicals and hormone contaminants from the sewage before the water is discharged back into local waterways. |
| Posted: 14 Feb 2013 09:05 AM PST Scientists have revealed new insights into how cells stick to each other and to other bodily structures, an essential function in the formation of tissue structures and organs. It's thought abnormalities in their ability to do play an important role in a broad range of disorders, including cardiovascular disease and cancer. |
| Posted: 14 Feb 2013 08:16 AM PST The neuroanatomy of human speech and bird song share structural features, behaviors and now gene expression patterns. |
| What green algae are up to in the dark Posted: 14 Feb 2013 07:38 AM PST How do green algae produce hydrogen in the dark? Biologists have now uncovered a mechanism for the production of the gas which has hardly been examined before; usually, researchers are interested in light-driven hydrogen synthesis. |
| Dog spots the dog: Dogs recognize the dog species among several other species on a computer screen Posted: 14 Feb 2013 07:37 AM PST Dogs pick out faces of other dogs, irrespective of breeds, among human and other domestic and wild animal faces and can group them into a category of their own. They do that using visual cues alone, according to new research. Their work is the first to test dogs' ability to discriminate between species and form a "dog" category in spite of the huge variability within the dog species. |
| A glimpse inside the control centers of cell communication Posted: 14 Feb 2013 04:55 AM PST Researchers have detected characteristic constructional features in a family of sensors that process signals in the human body and control physiological processes. |
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