Author Archives: Guest Post

Self-Healing Solar Cells ‘Channel’ Natural Processes

To understand how solar cells heal themselves, look no further than the nearest tree leaf or the back of your hand.

The “branching” vascular channels that circulate life-sustaining nutrients throughout leaves and hands serve as the inspiration for solar cells that can restore themselves efficiently and inexpensively. (more…)

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Hydraulic Fracturing Fluids Likely Harmed Threatened Kentucky Fish Species

Hydraulic fracturing fluids are believed to be the cause of the widespread death or distress of aquatic species in Kentucky’s Acorn Fork, after spilling from nearby natural gas well sites. These findings are the result of a joint study by the U.S. Geological Survey and the U.S. Fish and Wildlife Service.

The Acorn Fork, a small Appalachian creek, is habitat for the federally threatened Blackside dace, a small colorful minnow. The Acorn Fork is designated by Kentucky as an Outstanding State Resource Waters. (more…)

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Muschel-Probleme ungelöst

WWF und Schutzstation Wattenmeer zum Start der Miesmuschelsaison: bestehende Praxis der Muschelfischerei in Schleswig Holstein ist unverträglich mit dem Nationalpark

Hamburg/Husum: Zum heutigen Auftakt der Fangsaison auf Miesmuscheln im schleswig-holsteinischen Wattenmeer üben die Umweltverbände Schutzstation Wattenmeer und WWF Kritik an der Muschelfischerei. Die natürlichen Miesmuschelbestände wurden auf einen Bruchteil reduziert, doch es dürfen weiter wilde Muscheln gefangen werden. Zusätzlich errichtet man im Nationalpark bauliche Anlagen zur Saatmuschelgewinnung. (more…)

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Dating violence impedes victims’ earnings

Dating violence in adolescence not only takes a physical and emotional toll on young women, it also leads to less education and lower earnings later in life, according to a first-of-its-kind study led by a Michigan State University researcher.

A young woman’s educational performance may be hindered by her partner’s actions, such as destroying books or homework or causing injuries that prevent her from going to school. (more…)

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NASA’S Mars Curiosity Debuts Autonomous Navigation

PASADENA, Calif. – NASA’s Mars rover Curiosity has used autonomous navigation for the first time, a capability that lets the rover decide for itself how to drive safely on Mars.

This latest addition to Curiosity’s array of capabilities will help the rover cover the remaining ground en route to Mount Sharp, where geological layers hold information about environmental changes on ancient Mars. The capability uses software that engineers adapted to this larger and more complex vehicle from a similar capability used by NASA’s Mars Exploration Rover Opportunity, which is also currently active on Mars. (more…)

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The artistry of bees

A story about bees at a world famous art museum.

Bees are artists

Patrons at the Weisman Art Museum (WAM) on the University of Minnesota’s Twin Cities campus are in little danger of being stung by honeybees, despite their close proximity to 100,000 of them. Bees basically mind their own business, and they have much to attend to. (more…)

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Real-time Monitoring Pays Off for Tracking Nitrate Pulse in Mississippi River Basin to the Gulf of Mexico

Cutting edge optical sensor technology is being used in the Mississippi River basin to more accurately track the nitrate pulse from small streams, large tributaries and ultimately to the Gulf of Mexico.

Excessive springtime nitrate runoff from agricultural land and other sources in the Mississippi drainage eventually flows into the Mississippi River. Downstream, this excess nitrate contributes to the Gulf of Mexico hypoxic zone, an area with low oxygen known commonly as the “dead zone.” NOAA-supported researchers reported that the summer 2013 dead zone covered about 5,840 square miles, an area the size of Connecticut. (more…)

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