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August 14, 2011

7:25 PM | Myths: Busted – Clearing Up the Misunderstandings about Organic Farming

We at Scientific American welcome responses to our articles. A recent blog post by one of our network bloggers, Christie Wilcox – Mythbusting 101: Organic Farming > Conventional Agriculture – engendered much discussion online and we received several offers to write responses. This blog post by Jason Mark is the response we accepted. Of course, [...]

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Reflecting on Applied Animal Behavior

Time for reflection (By Wieselblitz)Hi Mia! Love the lavender research! Learning that dogs show different behaviors when exposed to different scents could help us prime environments to be associated with particular dog behaviors and moods (you noted that exposure to peppermint and rosemary are associated with activity and barking while exposure to lavender and chamomile bring out resting). At the Horowitz Dog Cognition Lab, we have a new paper coming out soon in Learning and Motivation -- the […]

Mason G., Clubb R., Latham N. & Vickery S. (2007). Why and how should we use environmental enrichment to tackle stereotypic behaviour?, Applied Animal Behaviour Science, 102 (3-4) 163-188. DOI: 10.1016/j.applanim.2006.05.041

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A deeper look at the geology of diamonds

The geology of diamonds is fascinating in itself, but they also give insights into wider geological processes and history. Up until 1725, diamonds were only known from India. That all changed when Brazilians panning river sediments for gold, instead found diamonds. Recent … Continue reading →

Harte, B. & Richardson, S. (2012). Mineral inclusions in diamonds track the evolution of a Mesozoic subducted slab beneath West Gondwanaland, Gondwana Research, 21 (1) 236-245. DOI: 10.1016/j.gr.2011.07.001

Harte, B. & Cayzer, N. (2007). Decompression and unmixing of crystals included in diamonds from the mantle transition zone, Physics and Chemistry of Minerals, 34 (9) 647-656. DOI: 10.1007/s00269-007-0178-2

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Shrinking Alligator Penises: Using Wildlife Models to Study How Chemical Contaminants May Affect Human Reproductive Systems (Guest Post)

Erin on the side of a river somewhere in western NC, hard at work study obviously. Erin Abernethy is a Master’s student in the Odum School of Ecology at the University of Georgia, where she is studying scavenging ecology in Hawaii. Before coming to Athens, Erin lived in North Carolina earning her BS in Biology at Appalachian State. For that degree,

Guillette Jr., L., Pickford, D., Crain, D., Rooney, A. & Percival, H. (1996). Reduction in Penis Size and Plasma Testosterone Concentrations in Juvenile Alligators Living in a Contaminated Environment, General and Comparative Endocrinology, 101 (1) 32-42. DOI: 10.1006/gcen.1996.0005

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The extinction of the Irish brown bear

A new study by Saoirse Leonard and co-authors from the Institute of Zoology, London and the University of Liverpool model the potential survival of brown bears in an Irish glacial refugium. The study has just been published in Biology Letters, and … Continue reading →

Leonard, S., Risley, C. & Turvey, S. (2013). Could brown bears (Ursus arctos) have survived in Ireland during the Last Glacial Maximum?, Biology Letters, 9 (4) 20130281-20130281. DOI: 10.1098/rsbl.2013.0281

Edwards, C., Suchard, M., Lemey, P., Welch, J., Barnes, I., Fulton, T., Barnett, R., O'Connell, T., Coxon, P., Monaghan, N. & Valdiosera, C. (2011). Ancient Hybridization and an Irish Origin for the Modern Polar Bear Matriline, Current Biology, 21 (15) 1251-1258. DOI: 10.1016/j.cub.2011.05.058

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Some Quantized Flux History

In 1961, William Fairbank and Bascomb Deaver experimentally verified that magnetic flux can be quantized. This week I read an excellent paper on the history of the experiment[1]. For those who aren't close to a library with access to the journal, (and for my own notes), here are a few of the highlights. For more info on the Fairbank/Deaver experiment see[4] .The Other ExperimentThe first interesting thing you should know is that there was a similar experiment […]

Einzel D. (2011). 50 Years of Fluxoid Quantization: 2e or Not 2e, Journal of Low Temperature Physics, 163 (5-6) 215-237. DOI: 10.1007/s10909-011-0349-x

Doll R. & Näbauer M. (1961). Experimental Proof of Magnetic Flux Quantization in a Superconducting Ring, Physical Review Letters, 7 (2) 51-52. DOI: 10.1103/PhysRevLett.7.51

Byers N. & Yang C. (1961). Theoretical Considerations Concerning Quantized Magnetic Flux in Superconducting Cylinders, Physical Review Letters, 7 (2) 46-49. DOI: 10.1103/PhysRevLett.7.46

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August 14, 2011

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