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May 10, 2013

8:00 PM | Emergency Spacewalk Likely for 'Serious' ISS Coolant Leak

A slide showing the P6 Truss, the location of the coolant leak on the International Space Station NASA via Universe Today Astronaut Tom Marshburn: "Suddenly very busy!" Astronauts on the International Space Station are preparing for a potential emergency spacewalk to fix an ammonia coolant leak outside the station. On Thursday, the ISS crew spotted small white flakes floating away from an area of the Station's P6 truss structure, and noticed pressure drops in the control panel of the pump and […]

February 15, 2013

6:00 PM | Watch Live As Asteroid 2012 DA14 Whizzes Past Earth

An animation of Asteroid 2012 DA14 NASA screenshotYour complete guide to today's near-earth asteroid flyby Want to keep tabs on asteroid 2012 DA14 as it whizzes past Earth today? NASA TV and several online astronomy outlets will be tracking this asteroid as it makes its record-setting close shave. This marks the first time there has been an asteroid of this size passing this close that we've known about a year beforehand. No, there's no chance it will hit us, but it will come within 27,630 […]

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Blood magic: old blood ages the young

“Our ancient countess was refused her desires will To bathe in pure fresh blood She’d peasant virgins killed Elizabeth, in the chasm where was my soul Forever young, Elizabeth Bathorii in the castle of your death You’re still alive, Elizabeth” -“Elizabeth”, Ghost As folklore has it, Elizabeth Bathorii, Countess of Hungary, often […]

Villeda SA, Luo J, Mosher KI, Zou B, Britschgi M, Bieri G, Stan TM, Fainberg N, Ding Z, Eggel A & Lucin KM (2011). The ageing systemic milieu negatively regulates neurogenesis and cognitive function., Nature, 477 (7362) 90-4. PMID: 21886162

Loffredo FS, Steinhauser ML, Jay SM, Gannon J, Pancoast JR, Yalamanchi P, Sinha M, Dall'osso C, Khong D, Shadrach JL & Miller CM (2013). Growth Differentiation Factor 11 Is a Circulating Factor that Reverses Age-Related Cardiac Hypertrophy., Cell, 153 (4) 828-39. PMID: 23663781

Zhang G, Li J, Purkayastha S, Tang Y, Zhang H, Yin Y, Li B, Liu G & Cai D (2013). Hypothalamic programming of systemic ageing involving IKK-β, NF-κB and GnRH., Nature, 497 (7448) 211-6. PMID: 23636330

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Natural algorithms and the sciences

Today, I am passing through New York City on my way to Princeton’s Center for Computational Intractability for a workshop on Natural Algorithms and the Sciences (NA&S). The two day meeting will cover everything from molecular algorithms for learning and experiments on artificial cells to bounded rationality in decision-making and the effects of network topology […]

Chazelle, B. (2012). Natural algorithms and influence systems, Communications of the ACM, 55 (12) 101. DOI: 10.1145/2380656.2380679

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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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May 10, 2013

February 15, 2013

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