Post List

  • September 13, 2010
  • 07:13 PM

Finding Truth in a Messy World

by jebyrnes in I'm a chordata, urochordata!

*-note, this was derived from a combination of emails between myself and my former phd advisor. See if you can pick out who is arguing what and where. It’s fun – well, for some of you, anyway. How do we know the world? This is a seemingly simple and vast question – one with no [...]... Read more »

  • September 13, 2010
  • 06:38 PM

Magnetic Fields in Cosmology

by The Astronomist in The Astronomist.

The existence of magnetic fields on cosmologically large scales is an unsolved problem in astrophysics. Theory favors a universe that did not begin with any magnetic fields present and classical magnetohydrodynamics restricts the spontaneous emergence of a magnetic state under the influence of ideal forces. In a paper entitled Twisting Space-Time: Relativistic Origin of Seed Magnetic Field and Vorticity appearing Physical Review letters Swadesh Mahajan and Zensho Yoshida propose a universal magn........ Read more »

Beck, R., Brandenburg, A., Moss, D., Shukurov, A., & Sokoloff, D. (1996) GALACTIC MAGNETISM: Recent Developments and Perspectives. Annual Review of Astronomy and Astrophysics, 34(1), 155-206. DOI: 10.1146/annurev.astro.34.1.155  

  • September 13, 2010
  • 05:56 PM

Possibly the first ever photos of a live Bothrolycus ater. Or: a test of how much information exists on a really obscure snake.

by Darren Naish in Tetrapod Zoology

Regular readers will know that I like covering obscure animals... with luck, really obscure animals. The problem with such animals is that nice images hardly ever - sometimes never - exist. When they do exist, they're protected by copyright and are unavailable for use on a blog. I'm therefore eternally grateful when people are able (and kind enough) to send me photos of an obscure animal, and are able to give me permission to use them. Recently, herpetologist Kate Jackson of Whitman College, W........ Read more »

  • September 13, 2010
  • 05:20 PM

An eye for an eye

by Tom Rees in Epiphenom

Religious people are more likely to approve of capital punishment. That's something that's always intrigued me - partly because I find the idea of killing another human being in cold blood absolutely horrific. To be fair, however, there's a lot of variation between different religious groups in the support for the death penalty, and perhaps that holds at least a partial answer. Maybe there's something in the creed of certain religions, or sects within religions, that encourages notions of reveng........ Read more »

  • September 13, 2010
  • 04:04 PM

Scientific hubris, or: Everything you thought you knew about straight line fits is wrong

by sarah in One Small Step

Think you’ve got your least squares down to a tee? Think again. In a paper posted to the Arxiv in late August, David Hogg of NYU and his collaborators take us to task on our sloppy data fitting habits. And he’s not in the mood to mince his words. It is conventional to begin any [...]... Read more »

David W. Hogg, Jo Bovy, & Dustin Lang. (2010) Data analysis recipes: Fitting a model to data. Arxiv . arXiv: 1008.4686v1

  • September 13, 2010
  • 04:00 PM

Whiplash, Compensation and Recovery

by Lorimer Moseley in BodyInMind

When you hurt your neck in a car accident, what are the chances that you will get better? Well, Michele Sterling’s research team has put aside its Jacaranda Gazing and Cane Toad Stomping, to gather some really helpful information on this. What is more, Sterlo has been so kind as to squeeze another nanosecond out [...]... Read more »

  • September 13, 2010
  • 03:43 PM

Wyeth's Ghostwriters Falsely Promoted Hormone Replacement Therapy

by Michael Long in Phased

Adriane Fugh-Berman (Georgetown University, United States) exposes the campaign of Wyeth and DesignWrite to falsely market hormone replacement therapy in non-symptomatic women, thereby profiting from a medical treatment which is not based on science. This news feature was written on September 13, 2010.... Read more »

  • September 13, 2010
  • 03:36 PM

Essential Skills for Living with Pain

by Bronwyn Thompson in Healthskills: Skills for Healthy Living

I could actually head this post with the title ‘Essential Skills for Living’ and leave out the pain part, because as I reflect on the events over the past week, and the aftermath as residents of Christchurch start to demolish then rebuild their homes and businesses, these same skills apply. How do people live well … Read more... Read more »

  • September 13, 2010
  • 03:17 PM

In which I flog a dead horse

by Hadas Shema in Information Culture

In this post I'd like to revisit the Kouper paper (2010) and even more important, the way it was accepted among science bloggers. First of all, let's start with the blogs studied. The paper says that "The blogs were sampled via the Internet search for "science blogs" and "blogs about science" and by following scientific news on the moment of data collection in Summer, 2008". I'm not sure why Ms. Kouper felt the need to make both searches because Uncle Google, bless its PageRank heart, gives, as........ Read more »

Kouper, I. (2010) Science blogs and public engagement with science: practices, challenges, and opportunities. Jcom, 9(1). info:/

  • September 13, 2010
  • 03:08 PM

Fishin' in the membrane

by The Curious Wavefunction in The Curious Wavefunction

Since we were talking about GPCRs the other day, here's a nice overview of some of the experimental challenges associated with membrane proteins and how researchers are trying to overcome them. These challenges are associated not just with the crystallization, but with the whole shebang. Although many clever tricks have emerged, we have a long way to go, and at least a few of the tricks sound like brute trial and error.To begin with, it's not that easy to get your expression system to produce am........ Read more »

  • September 13, 2010
  • 01:00 PM

Bacterial Physiology and Virulence: The Cultures Converge

by Fred Neidhardt in Small Things Considered

by Fred Neidhardt

Growth dominates the attention of many bacteriologists. It has done so for over a century, inspiring explorations into the complex biochemistry and physiology that produce new cells able to grow, survive harsh environments, and live to grow another day.

Likewise, since the earliest days of microbiology, virulence has been a central focus. In fact, studies of how bacteria cause disease have in sheer number dominated the field for the simple reason that more than intellect........ Read more »

Dalebroux ZD, Svensson SL, Gaynor EC, & Swanson MS. (2010) ppGpp conjures bacterial virulence. Microbiology and molecular biology reviews : MMBR, 74(2), 171-99. PMID: 20508246  

  • September 13, 2010
  • 11:41 AM

Feeding Your Internal Ecosystem

by Rob Mitchum in ScienceLife

The human body is not just an organism, it’s an ecosystem. To the billions of microscopic bacteria, viruses and fungi living in the various nooks and crannies of our intestines, mouth, nose, and other areas, we are the world, the environment that drives their evolution. Though scientists and physicians have long known that humans are [...]... Read more »

Poroyko V, White JR, Wang M, Donovan S, Alverdy J, Liu DC, & Morowitz MJ. (2010) Gut microbial gene expression in mother-fed and formula-fed piglets. PloS one, 5(8). PMID: 20805981  

  • September 13, 2010
  • 11:41 AM

Late-Life Alcohol Consumption and Mortality Risk

by William Yates, M.D. in Brain Posts

A recent study from Dr. Charles Holahan and colleagues has been posted on the new articles section of Alcoholism: Clinical and Experimental Research.  This study examined the role of alcohol consumption and mortality in a group of men and women between the ages of 55 and 65 followed for twenty years.  The media highlighted this study often headlining that heavy drinking was linked lower mortality rates than being abstinent from alcohol.  This study deserves further analysis and co........ Read more »

Holahan CJ, Schutte KK, Brennan PL, Holahan CK, Moos BS, & Moos RH. (2010) Late-Life Alcohol Consumption and 20-Year Mortality. Alcoholism, clinical and experimental research. PMID: 20735372  

  • September 13, 2010
  • 11:12 AM

Falling Waters

by Journal Watch Online in Journal Watch Online

Floods just aren’t what they used to be. The construction of dams has dramatically altered the flow of flood waters in more than half of the large rivers in the United States, and in many smaller waterways too, according to a new analysis.
Although rising rivers can wash away homes and threaten lives, ecologists have […] Read More »... Read more »

  • September 13, 2010
  • 11:10 AM

Beyond the “gist”: What are we really looking at in a painting?

by Psychology 379 bloggers in Cognition & the Arts

As I walk through an art museum, I casually stroll around the exhibits stopping and pausing at various pieces that catch my eye. Usually the artists are Monet or Degas; I definitely have my favorites. But what is it about these paintings that catch our eyes? What kinds of things do we notice and pay [...]... Read more »

Locher, P., Krupinski, E., Mello-Thoms, C., & Nodine, C. (2008) Visual interest in pictorial art during an aesthetic experience. Spatial Vision, 21(1), 55-77. DOI: 10.1163/156856808782713762  

  • September 13, 2010
  • 11:03 AM

Epigenetic Memories

by Michele in Promega Connections

Embryonic development in multicellular eukaryotic organisms is an intricate dance of signals that determine when and where genes are expressed, allowing the zygote to produce the cells that will ultimately differentiate in to the tissues and organs of the adult. Some of this gene expression is regulated by maternal and zygotic transcription factors, but much [...]... Read more »

Furuhashi, H., Takasaki, T., Rechtsteiner, A., Li, T., Kimura, H., Checchi, P., Strome, S., & Kelly, W. (2010) Trans-generational epigenetic regulation of C. elegans primordial germ cells. Epigenetics , 3(1), 15. DOI: 10.1186/1756-8935-3-15  

  • September 13, 2010
  • 10:54 AM

Stegosaurus Week: A Rare Look at Soft Tissue

by Brian Switek in Dinosaur Tracking

Dinosaur skin impressions are pretty rare, and, even among the known collection of these soft-tissue traces, not all dinosaurs are equally well-represented. There are plenty of skin impressions from hadrosaurs, but stegosaurs are among the dinosaurs in which the skin texture is still largely unknown. Now, as reported by paleontologists Nicolai Christiansen and Emanuel Tschopp, [...]... Read more »

  • September 13, 2010
  • 10:52 AM

Shotgun Psychiatry

by Neuroskeptic in Neuroskeptic

There's a paradox at the heart of modern psychiatry, according to an important new paper by Dr Charles E. Dean, Psychopharmacology: A house divided.It's a long and slightly rambling article, but Dean's central point is pretty simple. The medical/biological model of psychiatry assumes that there are such things as psychiatric diseases. Something biological goes wrong, presumably in the brain, and this causes certain symptoms. Different pathologies cause different symptoms - in other words, there ........ Read more »

Dean CE. (2010) Psychopharmacology: A house divided. Progress in neuro-psychopharmacology . PMID: 20828593  

  • September 13, 2010
  • 09:57 AM

When your supplier goes bust…

by Jan Husdal in

Supply chain risk management must look beyond the individual supplier and look at dependencies within the entire supplier portfolio. Such dependencies may not be obvious at first sight, and this paper presents one very good approach towards discovering these dependencies. [ ... ]... Read more »

  • September 13, 2010
  • 08:59 AM

Elephant fish diversification via rapidly evolving electrical signals

by Graves in Down the Cellar

We usually think about organisms diversifying by moving in to fill previously unoccupied or recently-vacated niches—areas free of predators, or where native species have vanished, or with abundant, underutilized resources. The idea is that organisms seize opportunities, and that seems to be the major story told by decades of work on the Galapagos finches by Peter and Rosemary Grant.

Is this ... Read more »

Arnegard ME, McIntyre PB, Harmon LJ, Zelditch ML, Crampton WG, Davis JK, Sullivan JP, Lavoué S, & Hopkins CD. (2010) Sexual signal evolution outpaces ecological divergence during electric fish species radiation. The American naturalist, 176(3), 335-56. PMID: 20653442  

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