Post List

  • March 2, 2011
  • 05:59 AM
  • 1,022 views

In the news this month: giant black hole in a dwarf galaxy

by Megan in Rigel

This blog post is a news story from the Jodcast, aired in the March 2011 edition.

Reines, A., Sivakoff, G., Johnson, K., & Brogan, C. (2011). An actively accreting massive black hole in the dwarf starburst galaxy Henize 2-10 Nature, 470 (7332), 66-68 DOI: 10.1038/nature09724... Read more »

  • March 2, 2011
  • 05:05 AM
  • 1,881 views

Obsidian blades as surgical tools

by Julien Riel-Salvatore in A Very Remote Period Indeed

In my recent post on #hipsterscience, the quote that struck closest to home was the one about the obsidian blade. See, most of my analytical work has been focused on stone tools (aka lithics) and how they were manufactured, used and managed by people in the past. Whenever it was available, obsidian seems to have been one of the preferred materials to make sharp flakes of, mainly because it is ... Read more »

Buck BA. (1982) Ancient technology in contemporary surgery. The Western journal of medicine, 136(3), 265-9. PMID: 7046256  

  • March 2, 2011
  • 03:22 AM
  • 1,218 views

How Systems Design Themselves

by Daniel Dumke in SCRM Blog - Supply Chain Risk Management


Continuing with on with articles on general Systems Design and foundational articles, today I would like to talk about Conway's seminal paper on "How Do Committees Invent" from 1968. If you want to read the paper completely, you can do so on Conway's web page.

In his article Conway describes system design at its most generic level. Be it a system to prevent natural disasters or a new product of a company.

Actors and Stages of Design
Under most circumstances the newly designed system has a........ Read more »

Conway, M. E. (1968) How Do Committees Invent?. Datamation, 14(4), 28-31. info:/

  • March 2, 2011
  • 02:02 AM
  • 846 views

Train your Muscles, Embiggen your Hippocampus

by Scicurious in Neurotic Physiology

I want to start this post off with a video: This is Mrs. Ida Keeling, a woman who has been breaking running records since she first started training at at 67. She’s now 95 and America’s oldest sprinter. And she is INSPIRING. I hope I’m just like her when I’m old, working out and strong [...]... Read more »

Erickson, K., Voss, M., Prakash, R., Basak, C., Szabo, A., Chaddock, L., Kim, J., Heo, S., Alves, H., White, S.... (2011) Exercise training increases size of hippocampus and improves memory. Proceedings of the National Academy of Sciences, 108(7), 3017-3022. DOI: 10.1073/pnas.1015950108  

  • March 2, 2011
  • 02:00 AM
  • 967 views

Less educated police officers are found to be more likely to use force

by SAGE Insight in SAGE Insight

The effect of higher education on police behaviorFrom Police Quarterly Police scholars and practitioners have long called for the adoption of a college education requirement for police officers as a condition of employment. Since the professional movement in the early 1900s, the importance of education was seen as a means to a better style of [...]... Read more »

  • March 2, 2011
  • 01:31 AM
  • 1,557 views

Why do Narcissist use Social Networking Sites?

by Dr Shock in Dr Shock MD PhD


The Millenial generation are those in college from 2000 to late 2010. It’s the same period in which social networking sites such as Facebook, MySpace and Hyves in The Netherlands saw a massive increase in users. To some, the millennial generation are more narcissistic than earlier generations. From wikipedia, the millennial generation is generally marked [...]


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  • March 2, 2011
  • 12:41 AM
  • 1,086 views

Natural history collections in ecological research

by Hannah Waters in Culturing Science – biology as relevant to us earthly beings

Once I dreamed a dream of being an evolutionary biologist.  As I imagined it, I would hang out in a natural history museum, comparing fossils to one another, taking notes on the minute differences, and piecing together the history of life. It wasn’t until a job fair years ago, when I babbled to an evolutionary [...]... Read more »

Barnes, D., Kuklinski, P., Jackson, J., Keel, G., Morley, S., & Winston, J. (2011) Scott's collections help reveal accelerating marine life growth in Antarctica. Current Biology, 21(4). DOI: 10.1016/j.cub.2011.01.033  

Parker, P., Buckles, E., Farrington, H., Petren, K., Whiteman, N., Ricklefs, R., Bollmer, J., & Jiménez-Uzcátegui, G. (2011) 110 Years of Avipoxvirus in the Galapagos Islands. PLoS ONE, 6(1). DOI: 10.1371/journal.pone.0015989  

  • March 1, 2011
  • 11:08 PM
  • 960 views

Authenticity of XMRV integration sites

by Vincent Racaniello in virology blog

Integration of retroviral DNA into the cellular genome is essential for the production of new infectious particles. A strong argument that the novel human retrovirus XMRV is not a laboratory contaminant is the finding that viral DNA is integrated in chromosomal DNA of prostate tumors. Nucleotide sequence analyses of 14 integration sites in prostate tumor DNAs [...]... Read more »

Stone, K., Mickey, D., Wunderli, H., Mickey, G., & Paulson, D. (1978) Isolation of a human prostate carcinoma cell line (DU 145). International Journal of Cancer, 21(3), 274-281. DOI: 10.1002/ijc.2910210305  

Dong B, Kim S, Hong S, Das Gupta J, Malathi K, Klein EA, Ganem D, Derisi JL, Chow SA, & Silverman RH. (2007) An infectious retrovirus susceptible to an IFN antiviral pathway from human prostate tumors. Proceedings of the National Academy of Sciences of the United States of America, 104(5), 1655-60. PMID: 17234809  

  • March 1, 2011
  • 09:30 PM
  • 1,202 views

Neury Thursday: Potassium Channel Gating of the Circadian Clock

by Allison in Dormivigilia

A group of chronobiologists have uncovered that knocking down potassium-rectifier channels has deleterious effects on circadian pacemaking and behavior. ... Read more »

Takashi Kudo,1* Dawn H. Loh,1* Dika Kuljis,1 Cara Constance,2 and Christopher S. Colwell1. (2011) Fast Delayed Rectifier Potassium Current: Critical for Input and Output of the Circadian System. Journal of Neuroscience. info:/

  • March 1, 2011
  • 06:33 PM
  • 1,663 views

LIFE INSIDE THE ICE

by Julia Whitty in Deep Blue Home

(Seal tracks on sea ice. Photo by Jason Auch, courtesy Wikimedia Commons.) There's a fascinating paper in PNAS examining the relationship between Arctic sea ice and the single-celled algae that live in sea ice.These tiny players account for 57 percent of the primary productivity—that is, the business of making life from nonlife via photosynthesis—in Arctic waters.The authors turned the predictable question—How will dwindling Arctic sea ice affect ice-dwelling algae?—inside-out: Here we ........ Read more »

  • March 1, 2011
  • 06:27 PM
  • 1,842 views

The tiniest of moths

by Chris Grinter in The Skeptical Moth

The family Nepticulidae hold some of the smallest moths known, ranging from 3-8mm wing-tip to wing-tip.  For a comparison I have imaged two moths above: the largest known – Coscinocera hercules that tips the scales at nearly 9 inches, and one of the smallest (yes that tiny little speck below . . . → Read More: The tiniest of moths... Read more »

  • March 1, 2011
  • 06:23 PM
  • 1,139 views

Water slater embrace

by Africa Gomez in BugBlog

Our pond does not even qualify as a pond. It is a half a wooden barrel, almost full of dead leaves and overgrown irises and marsh marigolds. Still, it's got some water snails and frogs have bred the last couple of years. A few days ago I was watching the very active ramshorn snails when I noticed this paired water slaters, Asellus aquaticus. Water slaters are isopods, like woodlice, but unlike their terrestrial relatives they display a behaviour which is common in crustaceans, mate guarding, by ........ Read more »

  • March 1, 2011
  • 06:23 PM
  • 1,321 views

High school student does some hard science with UCLA researchers

by Casey Rentz in Natural Selections

If 8-year-olds can publish a scientific paper about bee behavior in the journal Biology Letters, then high school students ought to be capable of acting like full-fledged professional scientists, right?

Alexander Jaffe proves it true. The Los Angeles high school student gave up 30 hours a week of party time over the course of two summers to work for UCLA evolutionary biologist Michael Alfaro: looking at turtle and tortoise (chelonian) shell size and asking the question--what is the optimal size........ Read more »

  • March 1, 2011
  • 06:01 PM
  • 1,121 views

Clinical research and the popular press: death, money and policy

by Medical Media Watch in Medical Media Watch

Following Jack and Lorna’s limited trove of 2005 British Medical Journal (BMJ) papers picked up by the popular press, I too found little. Out of the ten papers I reviewed, only one was picked up and then only in a single outlet (it was The Times in case you were waiting with abated breath) In a [...]... Read more »

  • March 1, 2011
  • 05:03 PM
  • 354 views

Horizontal Stripes: Friend or Foe?

by Audrey Lustig in ionpsych

For years, the fashion world has told us that vertical stripes make the body look slimmer because they draw the eyes up and down.  Horizontal stripes supposedly do the exact opposite, drawing attention to the widest parts of the body … Continue reading →... Read more »

  • March 1, 2011
  • 02:04 PM
  • 1,654 views

Have You Double-Blinded Your Dog Today?

by Alan Dove in alandove

It’s hard not to like dogs. Even if you don’t like them, you’d better say that you do. After all, what kind of person are you if you don’t like an animal that is so clearly and completely into humans? … Continue reading →... Read more »

Sonoda, H., Kohnoe, S., Yamazato, T., Satoh, Y., Morizono, G., Shikata, K., Morita, M., Watanabe, A., Morita, M., Kakeji, Y.... (2011) Colorectal cancer screening with odour material by canine scent detection. Gut. DOI: 10.1136/gut.2010.218305  

  • March 1, 2011
  • 01:58 PM
  • 1,774 views

How Long Do Stem Cells Live?

by Sanford- Burnham in Beaker


Have you or a family member donated bone marrow or received a transplant? We’d love to hear what this type of research means to you. Please drop us a line in the comments below.
When patients receive a bone marrow transplant, they are getting a new population of hematopoietic stem cells. Fresh stem cells are needed [...]... Read more »

Sieburg HB, Rezner BD, & Muller-Sieburg CE. (2011) Predicting clonal self-renewal and extinction of hematopoietic stem cells. Proceedings of the National Academy of Sciences. info:/10.1073/pnas.1011414108

  • March 1, 2011
  • 11:59 AM
  • 1,301 views

Molecular subtypes in gliomas predict prognosis

by Sally Church in Pharma Strategy Blog

One of the hallmarks of cancer is that even within different tumour types, there is an enormous degree of heterogeneity. Ultimately, in simple terms this means that individual patients will respond to different therapies depending upon their underlying biology.   … Continue reading →
... Read more »

  • March 1, 2011
  • 10:59 AM
  • 1,027 views

Back to Earth

by Marco Frasca in The Gauge Connection

Nature publishes, in the last issue, an article about SUSY and LHC (see here).  The question is really simple to state. SUSY (SUperSYmmetry) is a solution to some problems that plagued physics for some time. An important question is the Higgs particle. In order to have the Standard Model properly working, one needs to fine [...]... Read more »

  • March 1, 2011
  • 10:28 AM
  • 1,883 views

Debunking the “Dinosaurs” of Kachina Bridge

by Brian Switek in Dinosaur Tracking

About 65.5 million years ago, the last of the non-avian dinosaurs were wiped out in the fallout from one of the earth’s most catastrophic extinction events. They left only bones and traces in the rock behind. Yet there are people who claim that humans actually lived alongside dinosaurs. Young earth creationists have a habit of [...]... Read more »

Senter, P.; Cole, S.J. (2011) "Dinosaur" petroglyphs at Kachina Bridge site, Natural Bridges National Monument, southeastern Utah: not dinosaurs after all . Palaeontologia Electronica, 14(1), 1-5. info:/

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