Post List

  • November 20, 2009
  • 09:52 AM

Emergency Medical Services Intervals and Survival in Trauma - Assessment of the “Golden Hour”

by Rogue Medic in Rogue Medic

There is a very important paper due to be published in the Annals of Emergency Medicine.[1] I expect that there will be a lot of criticism of this paper. There will be many reasons for being cautious in implementing the suggestions of the authors, but bad research is not one of them. One of the difficult things about this paper is that the authors are very good about identifying potential confounding influences. They explain that there are many factors that may have affected the results. They ar........ Read more »

  • November 20, 2009
  • 09:35 AM

The Tactics of an Egg Tending Lynx

by Johnny in Ecographica

... brilliant yellow display glared brightly through the otherwise dark and rainy Tuesday afternoon and beckoned for a closer look. On turning-over one of the composite flower heads to better examine its calyx, I discovered a green lynx spider (Peucetia viridans). The spider was standing guard on top of its egg sac, which it had tethered securely to the optimistic sunflower’s underside with hard-wearing silk.
... Read more »

  • November 20, 2009
  • 09:05 AM

Cost of killing nest-mates offset by benefits of killing nest-mates

by Jeremy Yoder in Denim and Tweed

Among birds, brood parasites are the ultimate freeloaders -- species like the common cuckoo and the brown-headed cowbird lay their eggs in other birds' nests, leaving the host to raise the parasite chicks at the expense of its own. But while brood parasitism is easy on the parents, it isn't so easy on their chicks, as a study recently published in PLoS ONE suggests.

.flickr-photo { }.flickr-frameright { float: right; text-align: left; margin-left: 15px; margin-bottom: 15px; width:40%;}.flickr-c........ Read more »

  • November 20, 2009
  • 08:30 AM

The impact of pesticides on salmon populations

by Rob Goldstein in Conservation Maven

A new study projects the impacts to Chinook salmon populations from non-lethal exposure to pesticides in juveniles...... Read more »

  • November 20, 2009
  • 08:26 AM

The Drink Spiking Myth Part 2

by Martin Robbins in The Lay Scientist

As promised, here's the second part of my look at the myth of drink spiking. Last time, we saw that the idea that drink-spiking is a widespread problem is a myth, with the evidence showing that in fact in the vast majority of cases where people believe their drinks have been spiked, this simply isn't the case - the symptoms they experience have been down to alcohol poisoning. In this post, we'll look at the reasons why this myth has become so widespread, as discussed in Burgess et al's "Embody........ Read more »

  • November 20, 2009
  • 08:01 AM

Bleed It Out

by The Neurocritic in The Neurocritic

I've opened up these scarsI'll make you face thisI pulled myself so farI'll make you, face, this, now!---Linkin ParkDeliberate self-harm, or self-injury, is becoming increasingly recognized as a problem affecting adolescents and young adults. Rates are difficult to determine, as the behaviors are often concealed. One recent study tracked a group of 1400 Midwestern US high school students over a 5 year period (Muehlenkamp et al., 2009). Rates of non-suicidal self-injury (NSSI) over 2001-205 were ........ Read more »

  • November 20, 2009
  • 06:25 AM

Sashimi may be an endangered species

by Scott A. in Thriving Oceans

I’ve been a bit distracted in the last couple of weeks and hence a lackluster post performance.  So time to get back to the ocean nitty gritty…
And what better way to start anew than with something to ease our appetites.  As I glance over the virtual menu I decide what the hell, “Waiter, I’ll take [...]... Read more »

  • November 20, 2009
  • 03:00 AM

Windshield splatter analysis…

by Jim Caryl in mental indigestion

A few years ago I took part in an RSPB survey called the Big Bug Count, which sought to quantitate what had hitherto been anecdotal accounts that the number of insect splats on car windscreens had decreased in recent years. Essentially it was a sticky pad of define area that was placed on the front [...]... Read more »

Kosakovsky Pond, S., Wadhawan, S., Chiaromonte, F., Ananda, G., Chung, W., Taylor, J., Nekrutenko, A., & , . (2009) Windshield splatter analysis with the Galaxy metagenomic pipeline. Genome Research, 19(11), 2144-2153. DOI: 10.1101/gr.094508.109  

  • November 20, 2009
  • 12:38 AM

The Subconscious and Strategic Resource Recruitment

by Daniel Hawes in Ingenious Monkey | 20-two-5

A new study looks at whether subconsciously held information is used strategically when people engage in effort requiring tasks...... Read more »

  • November 20, 2009
  • 12:20 AM

Self Diagnosis: Why you should tell your doctor what the diagnosis is

by Sport Injuries and Wellness Ottawa in Sport Injuries and Wellness

Ever look up your symptoms on the internet? Ever have a friend diagnose you with something they have had previously?With the internet today more and more people are taking initiative to diagnose themselves.  New research shows there is some merit in telling your doctor what you believe you may have. The British Medical Journal recently published an article discussing the new phenomenon of “Self Diagnosis” or “Self Labeling”.Reports have been made that “Self Diagnosis” can initia........ Read more »

Ryan, M. (1979) USSR letter: Self-diagnosis. BMJ, 2(6196), 979-980. DOI: 10.1136/bmj.2.6196.979  

  • November 20, 2009
  • 12:12 AM

Friday Weird Science: Oxytocin in your Cavernosa

by Evil Monkey in Neurotopia

This post brought to you by Ben and Jerry's Dublin Mudslide Ice Cream. Because the Twitter people are like little devils on my shoulder, making me eat the cake...


So Sci was going to do her final oxytocin post on another study in humans for oxytocin levels during male masturbation, but you know, you've seen one, you've seen them all. I know that they were looking at slightly different things, all looked the same: oxytocin measured while a guy is in a room with some porn, m........ Read more »

  • November 19, 2009
  • 11:23 PM

Seeing is believing : why delusions may arise from anomalous experiences

by sandygautam in The Mouse Trap

Image via Wikipedia

I recently came across this article by Rosengren and Hickling about how children explain seemingly impossible or extraordinary transformations in terms of magic or trickery or natural/physical explanations based on their ages and developmental level.
To summarize the study , I’m presenting the abstract:
Children’s magical explanations and beliefs were investigated in 2 studies. In [...]Rating: 0.0/10 (0 votes cast)

No related posts.... Read more »

  • November 19, 2009
  • 11:07 PM

Reversing optical “shockwaves” using metamaterials

by gg in Skulls in the Stars

In a recent issue of Physical Review Letters was an article with the intriguing (to me) title of “Experimental verification of reversed Cherenkov radiation in left-handed metamaterial,” by a collaboration from Zhejiang University in China and MIT.  The paper is an experimental verification of an effect predicted for metamaterials way back in 1968 by the [...]... Read more »

Xi, S., Chen, H., Jiang, T., Ran, L., Huangfu, J., Wu, B., Kong, J., & Chen, M. (2009) Experimental Verification of Reversed Cherenkov Radiation in Left-Handed Metamaterial. Physical Review Letters, 103(19). DOI: 10.1103/PhysRevLett.103.194801  

  • November 19, 2009
  • 10:00 PM

Scorpionflies: The Oldest Known Animal Pollinators

by Laura Klappenbach in About Animals / Wildlife

A new study suggests that scorpionflies that lived during the Jurassic Period fed on the nectar-like juices of seed ferns, conifers, and other primitive plants. As the scorpionflies feasted on the sweet liquid from these plants, they may have also acted as animal pollinators—couriers of pollen grains that are vitally necessary to the reproductive cycle of their host plants. If this scenario is true, scorpionflies represent the earliest known animal pollinators.... Read more »

Ren, D., Labandeira, C., Santiago-Blay, J., Rasnitsyn, A., Shih, C., Bashkuev, A., Logan, M., Hotton, C., & Dilcher, D. (2009) A Probable Pollination Mode Before Angiosperms: Eurasian, Long-Proboscid Scorpionflies. Science, 326(5954), 840-847. DOI: 10.1126/science.1178338  

Ollerton J, & Coulthard E. (2009) Paleontology. Evolution of animal pollination. Science (New York, N.Y.), 326(5954), 808-9. PMID: 19892970  

  • November 19, 2009
  • 09:18 PM

Another Candidate for Lynchpin Gene Controlling Calorie Restriction

by Reason in Fight Aging!

One of the better research outcomes a biologist can hope for is to find that a particular mechanism, disease, or benefit has a single point of control somewhere in its web of interlinked genes and feedback loops. A single gene or protein that acts as a switch or a dial, and has no or few entanglements with other biological systems. That lack of entanglements is important - a switch that turns one thing off and three other things on isn't of much use, at least for those of us who like our medicin........ Read more »

Zhang, M., Poplawski, M., Yen, K., Cheng, H., Bloss, E., Zhu, X., Patel, H., & Mobbs, C. (2009) Role of CBP and SATB-1 in Aging, Dietary Restriction, and Insulin-Like Signaling. PLoS Biology, 7(11). DOI: 10.1371/journal.pbio.1000245_id  

  • November 19, 2009
  • 09:11 PM

Multilevel (Quantile) Regression - A Question for Gelman

by Ryan in Evidence-Based Public Health

Multilevel (or hierarchical) regression modeling is very popular in the social sciences. So what I want to do is a hierarchical quantile regression of the 75% quantile of time spent in jail. And that was my question for Andrew Gelman.... Read more »

  • November 19, 2009
  • 08:19 PM

What Does It Mean to Be Navajo?

by teofilo in Gambler's House

In the previous post I made a distinction between “affiliation” and “identity” that may not have been totally clear.  In the context of Keith Kloor’s article on Navajo connections to Chaco, the basic point I want to make could be drastically oversimplified to something like this:

The Park Service’s finding that the Navajos are “affiliated” with [...]... Read more »

Warburton, M., & Begay, R. (2005) An Exploration of Navajo-Anasazi Relationships. Ethnohistory, 52(3), 533-561. DOI: 10.1215/00141801-52-3-533  

  • November 19, 2009
  • 06:38 PM

hey, where are those galaxy clusters going?

by Greg Fish in weird things

One of my first posts on this blog was about something referred to as a dark flow, a strange current carrying galaxy clusters to the edge of the visible universe. But last year it was just a speculation based on preliminary data. Today, the results have been double-checked, and it looks like about 1,400 galaxy [...]... Read more »

A. Kashlinsky, F. Atrio-Barandela, H. Ebeling, A. Edge, & D. Kocevski. (2009) A new measurement of the bulk flow of X-ray luminous clusters of galaxies. n/a. arXiv: 0910.4958v2

L. Mersini-Houghton, & R. Holman. (2008) 'Tilting' the Universe with the Landscape Multiverse: The 'Dark' Flow. JCAP 0902:006,2009. arXiv: 0810.5388v1

  • November 19, 2009
  • 04:10 PM

The cognitive benefits of time-space synaesthesia

by Mo in Neurophilosophy

SYNAESTHESIA is a neurological condition in which there is a merging of the senses, so that activity in one sensory modality elicits sensations in another. Although first described by Francis Galton in the 1880s, little was known about this condition until recently. A rennaissance in synaesthesia research began about a decade ago; since then, three previously unrecognized forms of the condition have been described, and a possible explanation for how it arises have been put forward.

Of all the f........ Read more »

  • November 19, 2009
  • 03:43 PM

Detecting faces: People use some of the same strategies computers do

by Dave Munger in Cognitive Daily

How does our visual system decide if something is a face? Some automated face-detecting software uses color as one cue that something is a face. For example Apple's iPhoto has no trouble determining that there are two faces in this color picture:

That's Nora in the back, and her cousin Ginger in front. In this picture, however, iPhoto can't identify a face:

That's a vintage black-and-white photo of Nora and Ginger's grandfather, but the computer can't find any faces in it. Do people, like ........ Read more »

Bindemann, M., & Burton, A.M. (2009) The Role of Color in Human Face Perception. Cognitive Science, 1144-1156. info:/10.1111/j.1551-6709.2009.01035.x

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