March 1, 2016 archive

Sleep loss boosts hunger, unhealthy food choices

Cutting back on sleep boosts levels of a chemical signal that can enhance the pleasure of eating snack foods and increase caloric intake, report investigators. It may be part of a mechanism that encourages overeating, leading to weight gain, they say. from Latest Science News — ScienceDaily See Link via IFTTT

Invasive Species Aren’t Always Unwanted

A growing number of scientists argue that not all non-native species are bad, and some may actually be beneficial. from NYT > Science See Link via IFTTT

Biofuels from algae: A budding technology yet to become viable

Despite high expectations and extensive research and investment in the last decade, technological options are still in developing stages and key resources for algal growth are still too onerous for economically viable production of algal biofuels, according to a literature review. No large-scale, commercial algae-to-biofuels facilities have been implemented up until the end of 2015. …

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Making better enzymes and protein drugs

Natural selection results in protein sequences that are only soluble to the level that is required to carry out its physiological function. However, in biotechnological applications, we need these proteins to survive concentrations that are up to 1000-fold higher that what naturally occurs, e.g. an antibody drug in the syringe prior to injection. Because of …

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Biodiesel in a caustic flash

Biodiesel represents a potentially cleaner and more sustainable fuel than those derived from crude oil. Now, scientists have developed a high-speed conversion that turns waste cooking oil into fuel using ultrasound and caustic soda. from Latest Science News — ScienceDaily See Link via IFTTT

A new way to discover DNA modifications

DNA is made from four nucleosides, each known by its own letter — A, G, C, and T. However, since the structure of DNA was deciphered in 1953, scientists have discovered several other variants that are often added to the DNA sequences to replace one of the usual four letters. from Latest Science News — …

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In emergencies, should you trust a robot?

In emergencies, people may trust robots too much for their own safety, a new study suggests. In a mock building fire, test subjects followed instructions from an “Emergency Guide Robot” even after the machine had proven itself unreliable – and after some participants were told that robot had broken down. from Latest Science News — …

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Study defines social motivations of urban farms

Two thirds of urban farmers have a social mission that goes beyond food production and profits, finds new American research. The researchers found that food production is an essential part of the mission for all urban farms, but approximately two thirds of farmers surveyed also expressed a social mission. These social missions are primarily related …

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Blood vessels sprout under pressure

It is blood pressure that drives the opening of small capillaries during angiogenesis. A team of researchers has observed the process for the first time. from Latest Science News — ScienceDaily See Link via IFTTT

Super-fast evolving fish splitting into two species in same lake

After just 150 years, stickleback fish in Switzerland have started to split into two different species, despite living in the same lake and interbreeding from New Scientist – News See Link via IFTTT

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