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• Lemurs can smell weakness in each other
• Climate predictions should include impacts of CO2 on life
• Administering hormones affects DNA
• Simple logic for nanofluidic computing simulated
• Timing is key for bacteria surviving antibiotics
• Computing power used to track the spread of cancer
• Novel hybrid catalyst to split water discovered
• Mars valleys traced back to precipitation
• More clues that Earth-like exoplanets are indeed Earth-like
• Pulse wave analysis provides reliable information on heart health in young people
• AI and radar technologies could help diabetics manage their disease

Lemurs can smell weakness in each other Posted: 29 Jun 2018 10:00 AM PDT Some people watch the competition carefully for the slightest signs of weakness. Lemurs, on the other hand, just give them a sniff. These primates from Madagascar can tell that a fellow lemur is weaker just by the natural scents they leave behind, finds a study on ring-tailed lemurs. The study reveals that getting hurt dampens a lemur's natural aroma, and that males act more aggressively toward scents that smell ''off.''

Climate predictions should include impacts of CO2 on life Posted: 29 Jun 2018 08:47 AM PDT Climate change predictions are not taking account of the full range of possible effects of rising carbon dioxide levels, researchers say.

Administering hormones affects DNA Posted: 29 Jun 2018 08:47 AM PDT In pigs, endocrine disruptors can alter gene expression in a way that also affects the next generation. The study findings could potentially apply to humans, too.

Simple logic for nanofluidic computing simulated Posted: 29 Jun 2018 08:47 AM PDT Invigorating the idea of computers based on fluids instead of silicon, researchers have shown how computational logic operations could be performed in a liquid medium by simulating the trapping of ions (charged atoms) in graphene (a sheet of carbon atoms) floating in saline solution. The scheme might also be used in applications such as water filtration, energy storage or sensor technology.

Timing is key for bacteria surviving antibiotics Posted: 29 Jun 2018 08:47 AM PDT For bacteria facing a dose of antibiotics, timing might be the key to evading destruction. In a series of experiments, researchers found that cells that repaired DNA damaged by antibiotics before resuming growth had a much better chance of surviving treatment.

Computing power used to track the spread of cancer Posted: 29 Jun 2018 08:46 AM PDT Researchers have developed a new computational method that increases the ability to track the spread of cancer cells from one part of the body to another. This migration of cells can lead to metastatic disease, which causes about 90 percent of cancer deaths from solid tumors -- masses of cells that grow in organs such as the breast, prostate or colon. Understanding the drivers of metastasis could lead to new treatments aimed at blocking the process of cancer spreading through the body.

Novel hybrid catalyst to split water discovered Posted: 29 Jun 2018 07:26 AM PDT Researchers have reported an inexpensive hybrid catalyst capable of splitting water to produce hydrogen, suitable for large-scale commercialization.

Mars valleys traced back to precipitation Posted: 28 Jun 2018 12:17 PM PDT The valley networks of Mars bear a strong resemblance to those found in arid landscapes on Earth. Researchers have been able to demonstrate this using the branching angles of river valley confluences. Based on these observations, they infer that Mars once had a primeval climate in which sporadic heavy precipitation eroded valleys.

More clues that Earth-like exoplanets are indeed Earth-like Posted: 28 Jun 2018 12:17 PM PDT Researchers suggest that two Earth-like exoplanets (Kepler-186f and 62f) have very stable axial tilts, much like the Earth, making it likely that each has regular seasons and a stable climate.

Pulse wave analysis provides reliable information on heart health in young people Posted: 28 Jun 2018 07:51 AM PDT Arterial stiffness is one of the early signs of cardiovascular disease, and arterial stiffening has been observed in children. A recent study suggests that an easy-to-use, non-invasive method can produce reproducible estimates of arterial stiffness in adolescents aged 16-19 years.

AI and radar technologies could help diabetics manage their disease Posted: 28 Jun 2018 07:50 AM PDT People with diabetes could be able to monitor their blood sugar without drawing blood using a system now being developed.

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