ScienceDaily: Top Science News |
- Dietary recommendations may be tied to increased greenhouse gas emissions
- Banked blood grows stiffer with age, study finds
- Ultra sensitive biosensor from molybdenite semiconductor developed
- First international standards for growth of developing babies, size of newborns
- No association found between wearing bra, breast cancer
- California blue whales rebound from whaling; first of their kin to do so
- A new model for a cosmological enigma -- dark matter: Solving long-standing and troublesome puzzles
| Dietary recommendations may be tied to increased greenhouse gas emissions Posted: 05 Sep 2014 09:27 AM PDT If Americans altered their menus to conform to federal dietary recommendations, emissions of heat-trapping greenhouse gases tied to agricultural production could increase significantly, according to a new study. |
| Banked blood grows stiffer with age, study finds Posted: 05 Sep 2014 08:39 AM PDT It may look like fresh blood and flow like fresh blood, but the longer blood is stored, the less it can carry oxygen into the tiny microcapillaries of the body, says a new study. Using advanced optical techniques, the researchers measured the stiffness of the membrane surrounding red blood cells over time. They found that, even though the cells retain their shape and hemoglobin content, the membranes get stiffer, which steadily decreases the cells' functionality. |
| Ultra sensitive biosensor from molybdenite semiconductor developed Posted: 05 Sep 2014 06:08 AM PDT Researchers have demonstrated an atomically thin, ultrasensitive and scalable molybdenum disulfide field-effect transistor based biosensors and establish their potential for single-molecule detection. |
| First international standards for growth of developing babies, size of newborns Posted: 05 Sep 2014 06:06 AM PDT The first international standards for fetal growth and newborn size have been developed by a global team led by scientists. Now, for the first time, all 120 million babies born each year across the world can be assessed using a common set of standards, reflecting how babies should grow when mothers have adequate health, nutrition, medical care and socioeconomic status. |
| No association found between wearing bra, breast cancer Posted: 05 Sep 2014 06:06 AM PDT A population-based case-control study found no association between bra wearing and increased breast cancer risk among postmenopausal women. "There have been some concerns that one of the reasons why breast cancer may be more common in developed countries compared with developing countries is differences in bra-wearing patterns," said one investigator. "Given how common bra wearing is, we thought this was an important question to address." |
| California blue whales rebound from whaling; first of their kin to do so Posted: 05 Sep 2014 06:02 AM PDT The number of California blue whales has rebounded to near historical levels and, while the number of blue whales struck by ships is likely above allowable U.S. limits, such strikes do not immediately threaten that recovery. |
| A new model for a cosmological enigma -- dark matter: Solving long-standing and troublesome puzzles Posted: 04 Sep 2014 09:12 AM PDT Astrophysicists believe that about 80 percent of the substance of our universe is made up of mysterious "dark matter" that can't be perceived by human senses or scientific instruments. |
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