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…)
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…)
Ein neues Leck am Kernkraftwerk Fukushima verseucht die Umwelt deutlich schlimmer als bisher angenommen. Mit 300 Tonnen ausgelaufenem radioaktiven Wasser ist es der bisher größte Störfall seit der Katastrophe vom März 2011.
Einer von hunderten Tanks auf dem AKW-Gelände, die zur Aufbewahrung des Kühlwassers dienen, ist leck geschlagen. Hatte Tepco, der Betreiber des Atomkraftwerks, anfangs noch 120 Liter ausgelaufenes Wasser gemeldet, musste er am Mittwoch seine Aussage berichtigen: Die 2.500-fache Menge radioaktiv verseuchtes Wasser war aus dem Leck getreten. “Wie viel Inkompetenz und Vertuschung von Tepco toleriert die japanische Regierung noch?”, kommentiert Heinz Smital, Atomexperte bei Greenpeace, die Fehlinformation. (more…)
Sleep helps the brain consolidate what we’ve learned, but scientists have struggled to determine what goes on in the brain to make that happen for different kinds of learned tasks. In a new study, researchers pinpoint the brainwave frequencies and brain region associated with sleep-enhanced learning of a sequential finger tapping task akin to typing, or playing piano.
PROVIDENCE, R.I. [Brown University] — You take your piano lesson, you go to sleep and when you wake up your fingers are better able to play that beautiful sequence of notes. How does sleep make that difference? A new study helps to explain what happens in your brain during those fateful, restful hours when motor learning takes hold. (more…)
On Sites Like eBay, Strangers No Longer Seen as ‘Just Like You’
COLUMBUS, Ohio – An anonymous stranger you encounter on websites like Yelp or Amazon may seem to be just like you, and a potential friend. But a stranger on a site like eBay is a whole different story.
A new study finds that on websites where people compete against each other, assumptions about strangers change.
Previous research has shown that people have a bias toward thinking that strangers they encounter online are probably just like them. (more…)
Researchers track nocturnal snail activity for the first time, using LED lights and time-lapse photography. Snails were tracked over 72 hours, with researchers measuring their speed, distance travelled and exploration habits. Snail numbers have risen in recent years due to favourable breeding conditions. Slugs and snails can carry the lungworm parasite, Angiostrongylus vasorum, which is potentially fatal to dogs.
A ground-breaking study of UK snail behaviour using LED and UV light tracking has found that the nocturnal creatures can explore the length of an average British garden in just one night, reaching a top speed of one metre per hour. (more…)
WWF-Studie zeigt wirtschaftliche Bedeutung von Afrikas ältestem Nationalparks und Risiken geplanter illegaler Ölerschließung
Der älteste Nationalpark Afrikas ist bis zu 1,1 Milliarden US-Dollar jährlich wert, wenn er nachhaltig bewirtschaftet würde – so das Ergebnis einer neuen WWF-Studie zum wirtschaftlichen Potenzial des Virunga Nationalparks. Stattdessen ist die Zukunft des UNESCO Weltnaturerbes durch Pläne zur Erkundung und Förderung von Ölvorkommen massiv bedroht. Der britische Öl-Konzern Soco müsse seine gefährlichen Planspiele daher unverzüglich beenden, so die WWF-Forderung.
Bis zu 45.000 sichere Arbeitsplätze in den Bereichen Wasserkraft, Fischerei, Öko-Tourismus, Medizin sowie Forschung und Bildung könnten in Virunga entwickelt werden, so die Studie. Virunga gilt als der Nationalpark mit der größten Artenvielfalt Afrikas und ist Heimat für 200 vom Aussterben bedrohten Berggorillas. Derzeit jedoch wird die ökonomische Gesamtwertschöpfung lediglich auf 48,9 Millionen US-Dollar jährlich veranschlagt. Grund dafür ist die Instabilität der Region durch andauernde Armee- und Rebellengefechte. (more…)
Scientists develop new way to detect threatening nanoparticles in food
COLUMBIA, Mo. – Over the last few years, the use of nanomaterials for water treatment, food packaging, pesticides, cosmetics and other industries has increased. For example, farmers have used silver nanoparticles as a pesticide because of their capability to suppress the growth of harmful organisms. However, a growing concern is that these particles could pose a potential health risk to humans and the environment. In a new study, researchers at the University of Missouri have developed a reliable method for detecting silver nanoparticles in fresh produce and other food products.
“More than 1,000 products on the market are nanotechnology-based products,” said Mengshi Lin, associate professor of food science in the MU College of Agriculture, Food and Natural Resources. “This is a concern because we do not know the toxicity of the nanoparticles. Our goal is to detect, identify and quantify these nanoparticles in food and food products and study their toxicity as soon as possible.” (more…)
