First Randomized Trial Shows IVF Culture Media Affect The Outcomes Of Embryos And Babies

Fertility experts are calling on the companies who make the solutions in which embryos are cultured...

Direct And Active Parent Involvement Key To Healthy Living For Kids

Parents who directly and actively engage their children in healthy living behaviour - instead of...

Reframing Body Weight As Baby Weight May Help Women Handle Pregnancy

SEATTLE, Wash. -- Pregnant women often rely on two identities -- a pregnant self and a non-pregnant...

Bubble-wrapped Sponge Creates Steam Using Sunlight

How do you boil water? Eschewing the traditional kettle and flame, MIT engineers have invented...

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Is it feasible to use dead stars to navigate spacecraft in deep space? Long-term space travel may be a pipe dream outside science fiction math but people inside science are at least thinking about how to make navigation possible. 

When temperatures get low, close to absolute zero, some chemical reactions still occur at a much higher rate than classical chemistry says they should – in that extreme chill, quantum effects enter the picture. Researchers have now confirmed this experimentally, providing insight into processes in the intriguing quantum world in which particles act as waves and perhaps also explaining how chemical reactions occur in the vast frigid regions of interstellar space.

Body hair in mammals is typically thought to have evolved to keep us warm in colder prehistoric periods but in elephants it may do the opposite.  A new study contends epidermal hair may have evolved to help the animals keep cool in the hot regions they live in.

Low surface densities of hair can help dissipate heat but the biological and evolutionary significance of sparse skin hair is not well known. The authors of the new paper studied the effects of skin hair densities in Asian and African elephants on thermoregulation in these animals, and concluded that elephant skin hair significantly enhances their capacity to keep cool under different scenarios like higher daytime temperatures or less windy days. 
Synthetic biology uses genes as interchangeable parts to design cellular circuits that can perform new functions, such as sensing environmental conditions. But their complexity is 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. Because all the cellular machinery for reading genes and synthesizing proteins is jumbled together, researchers have to be careful that proteins that control one part of their synthetic circuit don't hinder other parts of the circuit.
Researchers say that a form of oxytocin — the hormone correlated with human love — has a similar effect on fish, suggesting it is a key regulator of social behavior that has evolved and endured since ancient times.

The findings may help answer an evolutionary psychology question: why do some species develop complex social behaviors while others spend much of their lives alone? To find some clues, they examined the cichlid fish Neolamprologus pulcher, a highly social species found in Lake Tanganyika in Africa. These cichlids are unusual because they form permanent hierarchical social groups made up of a dominant breeding pair and many helpers that look after the young and defend their territory.
Implemented in 2006, Medicare prescription drug benefit (Part D) spent $65.8 billion for prescription drugs in 2011, according to the Congressional Budget Office. But Medicare beneficiaries are overpaying by hundreds of dollars annually because of difficulties selecting the ideal prescription drug plan for their medical needs, an investigation by the University of Pittsburgh Graduate School of Public Health reveals.  Their work also could be useful in designing health insurance exchanges, which are state-regulated organizations created under the Affordable Care Act ("Obamacare") to offer standardized health care plans.