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Discoblog

Archive for May, 2011

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NCBI ROFL: The sea lion solution to sexual harrassment: keep fewer males around.

Sexual harassment and female gregariousness in the South American sea lion, Otaria flavescens.

“Most colonial pinnipeds [fin-footed animals] form extreme clusters of breeding females that cannot be entirely explained by the distribution of sites for reproduction. Avoidance of male harassment has been postulated as an important determinant of reproductive aggregation in this group of mammals. (more…)

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May 31st, 2011 by ncbi rofl in fun with animals, NCBI ROFL | 9 Comments | RSS feed | Trackback >

Blue Goo to the Rescue in Japan Clean-Up [Gallery]

<p>Radiation clean up is a messy business. And the usual approach is disturbingly low tech: human beings scrub radioactivity off walls, cars, and so on with soap and water. The dirty water, which is taken away to be further decontaminated, has a tendency to slosh around and leak, and it's heavy and hard to transport. Japanese officials are trying a new approach in the Fukushima cleanup, using a blue goo called <a href="http://decongel.com/">DeconGel</a> (see earlier coverage <a href="http://blogs.discovermagazine.com/discoblog/2011/05/27/officials-use-blue-peelable-goo-to-decontaminate-japan/">here</a>). The goo is sprayed on to a surface (or applied with a paintbrush), allowed to dry, and then peeled off, bringing radioactive particles with it, like a lint roller on a cat hair–encrusted couch.</p>
<p>It took a lab accident to set CBI Polymers, which makes the gel, on the path to developing it. After cleaning up a pool of spilled experimental fluid, the researchers noticed that the floor was unusually clean. No amount of scrubbing could burnish the surrounding floor to the same pearly white. Three years later, in 2009, they released DeconGel, which has since been used to clean up everything from government labs at the National Energy Technology Laboratory to the Hungarian villages flooded by toxic alkali last year.</p><p>While DeconGel's precise chemical makeup is a secret, <a href="http://decongel.com/product-docs.html">documents from the company</a> show that it includes sodium hydroxide, a strong, caustic base, and ethanol, which acts as a solvent. The company donated 100 buckets of the stuff to the relief efforts. Here, a contaminated fire van in Japan is sprayed down.</p><p>When the gel dries, it traps particles from dust to PCBs to beryllium within it. It doesn't actually eliminate radioactivity, but it does limit the amount of radiation that can leak out into the environment by keeping it from becoming airborne.</p><p>The dried gel peels off easily, like sunburned skin. It's more compact than jugs of contaminated water, and it can be rolled up and shipped elsewhere easily.</p><p>DeconGel is also picks up radioactive particles that regular methods miss, the company says. After regular decontamination, 1200-1500 <a href="http://en.wikipedia.org/wiki/Counts_per_minute">counts per minute</a> (a measure of radioactivity) were left on this van; Decon Gel removed an additional 800-900.</p>
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May 31st, 2011 Tags: Fukushima, Japan, nuclear remediation, radiation
by Veronique Greenwood in Pollution Solutions (& Disasters) | 4 Comments | RSS feed | Trackback >

NCBI ROFL: How rastafarians can help cure arachnophobia.

A spiderless arachnophobia therapy: comparison between placebo and treatment groups and six-month follow-up study.

“We describe a new arachnophobia therapy that is specially suited for those individuals with severe arachnophobia who are reluctant to undergo direct or even virtual exposure treatments. In this therapy, patients attend a computer presentation of images that, while not being spiders, have a subset of the characteristics of spiders. The Atomium of Brussels is an example of such an image. (more…)

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May 30th, 2011 by ncbi rofl in fun with animals, NCBI ROFL | 1 Comment | RSS feed | Trackback >

NCBI ROFL: A girl thing: perceptions concerning the word “hymen” among young Swedish women and men.

“Introduction: This study investigated, from a gender perspective, perceptions concerning the word “hymen” among students in a Swedish senior high school. Methods: Students answered an open-ended question: What do you think about when you hear the word hymen? The answers were analyzed by using content analysis. (more…)

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May 27th, 2011 by ncbi rofl in NCBI ROFL, penis friday | 2 Comments | RSS feed | Trackback >

Officials Use Blue, Peelable Goo to Decontaminate Japan

goo
Just pour and peel! Also slices and dices.

Put away that Swiffer—when you’ve got a real mess to clean up, turn to this blue goo.

Japanese officials looking to clean up radioactive contamination are applying a product called DeconGel to the problem. The usual method is distressingly Stone Age: soap and water applied by human beings. As you can imagine, there are a number of problems with this, like what to do with all that radioactive water, which has a tendency to leak all over the place, and what to do about radiation exposure of said human beings.

(more…)

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May 27th, 2011 Tags: Japan, radioactive cleanup, radioactivity, remediation
by Veronique Greenwood in Pollution Solutions (& Disasters) | 6 Comments | RSS feed | Trackback >

NCBI ROFL: “No sh*t, Sherlock”: weight loss edition.

Portion size of food affects energy intake in normal-weight and overweight men and women.

“BACKGROUND:
Large portions of food may contribute to excess energy intake and greater obesity. However, data on the effects of portion size on food intake in adults are limited.
(more…)

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May 26th, 2011 by ncbi rofl in duh, eat me, NCBI ROFL, told you so | 2 Comments | RSS feed | Trackback >

NCBI ROFL: National anthems and suicide rates.

“In a sample of 18 European nations, suicide rates were positively associated with the proportion of low notes in the national anthems and, albeit less strongly, with students’ ratings of how gloomy and how sad the anthems sounded, supporting a hypothesis proposed by Rihmer.”
(more…)

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May 25th, 2011 by ncbi rofl in analysis taken too far, holy correlation batman!, NCBI ROFL | 5 Comments | RSS feed | Trackback >

Vuvuzelas Spray Millions of Spit Particles, Reaching A New Level of Annoying (& Virulent?)

vuvuzelaVexing. Also, gross.

The vuvuzela, that ear-splitting horn beloved by soccer fans and despised by everyone else, now has another count against it: it spews aerosolized spit like no other. And you know what travels in aerosolized spit? Germs.

(more…)

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May 25th, 2011 Tags: aerosols, disease, vectors, vuvuzelas
by Veronique Greenwood in Diseases, Injuries, & Other Ailments | 1 Comment | RSS feed | Trackback >

NCBI ROFL: The effects of wearing a costume on charitable donations.

“Although research has shown a general trend that people dressed in neat or professional clothes elicit more helping behavior from other people than when dressed in casual or sloppy clothes, no research has examined the effects of wearing a costume on helping behavior. (more…)

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May 24th, 2011 by ncbi rofl in NCBI ROFL, told you so | 2 Comments | RSS feed | Trackback >

Newsflash: Civilization Was Built on Llama Dung

Far before the looming pyramids and the learned librarians at Alexandria, Egyptian civilization sprung up from the fertile banks of the Nile. Long predating the Inca empire and the sprawling structures of Macchu Picchu, Andean civilization emerged from a whole bunch of llama poop.

For civilizations to take root, people need to have enough food on hand to put time and energy into activities like waging war, building stuff, and composing epic poetry. In the high and rugged Andes, growing that much maize—the staple crop of ancient South America—isn’t easy. That’s what llama droppings are for, a new study suggests.

(more…)

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May 24th, 2011 Tags: archaeology, Incas, llamas, soil, South America
by Valerie Ross in Scat-egory, Where We Came From & Where We're Going | 3 Comments | RSS feed | Trackback >

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    • About the Blog

      Discoblog is DISCOVER's compendium of quirky, funny, and surprising science news from the edge of the known universe. It's written by Veronique Greenwood and Valerie Ross. Email tips and suggestions to vgreenwood [at] discovermagazine [dot] com.

      Discoblog also includes the daily feature NCBI ROFL, in which two prone-to-distraction grad students post real scientific articles with funny subjects. Email your tips to ncbirofl [at] gmail.com. Follow the ROFL feed here.

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