Post List

  • April 8, 2011
  • 10:15 AM

Canada’s Children’s Fitness Tax Credit – The Rich Get Richer?

by Travis Saunders, MSc, CEP in Obesity Panacea

As many of our readers will know Canada is in the midst of an election campaign and the major parties are putting out a number of policy ideas on a daily basis. One idea proposed by Conservative leader Stephen Harper was to expand the Canadian Children’s Fitness Tax Credit (CFTC).  As it currently stands, the CFTC offers a $500 non-refundable tax credit that parents can receive by enrolling their child in an approved physical activity program.  If I understand it correctly, this means th........ Read more »

  • April 8, 2011
  • 10:13 AM

Life After Death at Yellowstone

by Andrew Farke in The Open Source Paleontologist

Taphonomy - the study of what happens to an organism after it dies - is integral to reconstructing the past. Perhaps the most important lessons come in inferring ecological interactions. Did that group of animals live and die together, or were they jumbled long after death? Were all of those shark teeth with the plesiosaur bones from a feeding frenzy, or just a fluke of currents? How closely does a set of fossils represent the relative abundance of the different species in the quarry? Such examp........ Read more »

  • April 8, 2011
  • 10:02 AM

Colour terms and national flags

by Sean Roberts in A Replicated Typo 2.0

Today, I wondered whether the number of basic colour terms a language has is reflected in the number of colours on its country’s flag. The idea being that a country’s flag contains colours that are important to its society, and therefore a country with more social tools for discussing colour (colour words) will be more likely to put more colours on its flag. It was a long shot, but here’s what I found:... Read more »

  • April 8, 2011
  • 09:27 AM

Modest, conventional and prepared to lead: Older adults in the workplace

by Alex Fradera in BPS Occupational Digest

Since 1983, the median age in the UK has increased from thirty-five to forty. The sun is setting on a fixed retirement age. So it's more important than ever for workplaces to understand how personality differs in older adults.Previous research has reported a range of ways that ageing influences personality, such as declines in the Big Five factors of neuroticism, extraversion and openness. James Bywater and Mathijs Affourtit of psychometric firm SHL wanted to extend this work using another inst........ Read more »

Bywater, J., & Affourtit, M. (2011) Work personality in later life: An exploratory study. Assessment and Development Matters, 3(1), 14-17. info:other/

  • April 8, 2011
  • 09:00 AM

Moving Beyond BMI

by Arya M. Sharma in Dr. Sharma's Obesity Notes

Regular readers of these pages will recall my previous posts on the Edmonton Obesity Staging System (EOSS), which uses a 5 point ordinal scale (0 to 4) to rate how sick patients are rather than just how big they are.
This morning, I am presenting this concept and some preliminary data that we have on this [...]... Read more »

Sharma AM, & Kushner RF. (2009) A proposed clinical staging system for obesity. International journal of obesity (2005), 33(3), 289-95. PMID: 19188927  

  • April 8, 2011
  • 08:00 AM

New Information about the event that made astronomy possible: Or, the Epoch of Reionization and what's love got to do with it?

by Brooke N in Smaller Questions

New Information about the event that made astronomy possible: Or, the Epoch of Reionization and what's love got to do with it? ... Read more »

Mirabel, I., Dijkstra, M., Laurent, P., Loeb, A., & Pritchard, J. (2011) Stellar black holes at the dawn of the universe. Astronomy . DOI: 10.1051/0004-6361/201016357  

  • April 8, 2011
  • 07:38 AM

100 years of superconductivity

by Joerg Heber in All That Matters

Today marks the 100th anniversary of superconductivity by Heike Kamerlingh Onnes. In a superconductor, the electrons flow without any electrical resistance. Apart from their fundamental scientific interest, superconductors are used to make powerful electromagnets, for example for MRI and NMR machines in medical diagnostics. Other promising applications include power transmission cables with low losses, highly [...]... Read more »

van Delft, D., & Kes, P. (2010) The discovery of superconductivity. Physics Today, 63(9), 38. DOI: 10.1063/1.3490499  

  • April 8, 2011
  • 07:10 AM

Stereotype fears and the lovely scent of vanilla

by Doug Keene in The Jury Room

Tammy sang it and we keep track of it just for you. Yes. Sometimes it’s hard to be a woman. Especially when we are reminded of the fact we are women. Internationally based researchers studied the impact of stereotype fears [especially when it comes to science, technology, engineering and math] on women’s intent to purchase [...]

Related posts:Redux: Sometimes it’s hard to be a woman (with appreciation to Tammy Wynette, Linda Ronstadt and Anne Reed)
“I didn’t know truth had a gender........ Read more »

KYOUNGMI LEE, HAKKYUN KIM, & KATHLEEN D. VOHS. (2011) Stereotype Threat in the Marketplace: Consumer Anxiety and Purchase Intentions. Journal of Consumer Research, 38(August). info:/

  • April 8, 2011
  • 06:29 AM

The genetics of renal cell carcinoma

by Danielle Stevenson in BHD Research Blog

As mentioned in the blog last week, high-throughput DNA sequencing is helping to identify novel mutations related to a number of different genetic disorders. A recent example of this can be seen in a study by Varela et al. (2011), … Continue reading →... Read more »

Kenneth, N., Mudie, S., van Uden, P., & Rocha, S. (2008) SWI/SNF Regulates the Cellular Response to Hypoxia. Journal of Biological Chemistry, 284(7), 4123-4131. DOI: 10.1074/jbc.M808491200  

Reisman, D., Glaros, S., & Thompson, E. (2009) The SWI/SNF complex and cancer. Oncogene, 28(14), 1653-1668. DOI: 10.1038/onc.2009.4  

Varela, I., Tarpey, P., Raine, K., Huang, D., Ong, C., Stephens, P., Davies, H., Jones, D., Lin, M., Teague, J.... (2011) Exome sequencing identifies frequent mutation of the SWI/SNF complex gene PBRM1 in renal carcinoma. Nature, 469(7331), 539-542. DOI: 10.1038/nature09639  

Xia, W., Nagase, S., Montia, A., Kalachikov, S., Keniry, M., Su, T., Memeo, L., Hibshoosh, H., & Parsons, R. (2008) BAF180 Is a Critical Regulator of p21 Induction and a Tumor Suppressor Mutated in Breast Cancer. Cancer Research, 68(6), 1667-1674. DOI: 10.1158/0008-5472.CAN-07-5276  

  • April 8, 2011
  • 06:00 AM

Paucis Verbis: AMI and EKG Geography

by Michelle Lin in Academic Life In Emergency Medicine

(click to see enlarged view) Sometimes a picture is worth MORE than a 1000 words. Such is the case of the above illustration that I saw on the Life In The Fast Lane blog. When I first saw it, I knew that I immediately had to find out who made the graphic. It turns out it is the multitalented Dr. Tor Ercleve, who is an emergency physician at Sir Charles Gairdner Hospital and an established medical illustrator.This graphic demonstrates the EKG findings for the various types of acute MI's as b........ Read more »

Trowbridge, R. (2003) Does This Patient Have Acute Cholecystitis?. JAMA: The Journal of the American Medical Association, 289(1), 80-86. DOI: 10.1001/jama.289.1.80  

  • April 8, 2011
  • 05:14 AM

Today in arXiv

by Marco Frasca in The Gauge Connection

After the excitation for the findings at Tevatron, we turn back to routine. Of course, I have never forgotten to cast a glance at arXiv where it is crystal clear the vitality of the physics community. I want to put down these few lines to point to your attention a couple of papers appeared today [...]... Read more »

J. R. Andersen, O. Antipin, G. Azuelos, L. Del Debbio, E. Del Nobile, S. Di Chiara, T. Hapola, M. Jarvinen, P. J. Lowdon, Y. Maravin.... (2011) Discovering Technicolor. arXiv. arXiv: 1104.1255v1

  • April 8, 2011
  • 12:44 AM

Friday Weird Science: The measure of a man, not quite what you’d think.

by Scicurious in Neurotic Physiology

Of COURSE this awesome paper would blow up the internets on a Monday, and of course, as you know, Sci is never funny on Mondays. She is only funny on Fridays. Should you ever find Sci funny on any other day of the week, you are delusional. But now I have the paper, and I’d [...]... Read more »

  • April 7, 2011
  • 09:37 PM

Neury Thursday: Prior Drinking History Modulates Cell Signaling

by Allison in Dormivigilia

Alcohol researchers have uncovered residual ethanol-induced changes in molecular signaling cascades, which possibly, could provide pharmacologists with an abundance of novel therapeutic targets for alcohol and other drug addictions.... Read more »

Brian E. Bernier, Leslie R. Whitaker, and Hitoshi Morikawa. (2011) Previous Ethanol Experience Enhances Synaptic Plasticity of NMDA Receptors in the Ventral Tegmental Area. Journal of Neuroscience. info:/

  • April 7, 2011
  • 09:30 PM

Australasian big-eared bats, and how to (perhaps) single-handedly wipe out an entire species, 1890s-style (vesper bats part X)

by Darren Naish in Tetrapod Zoology

About 12 species of big-eared Australasian bats are known as the, err, Australian big-eared bats and New Guinean bats. More formally, they are the Nyctophilus species. They're also known from some of the islands that surround New Guinea (like the Lesser Sundas), and also from New Caledonia (an endemic New Caledonian species, N. nebulosus, was named in 2002). Their presence has also been claimed for Fiji, but the evidence for this (based on specimens stored at the Natural History Museum in Lo........ Read more »

Volleth, M., & Tidemann, C. R. (1991) The origin of the Australian Vespertilioninae bats, as indicated by chromosomal studies. Zeitschrift für Säugetikerkunde, 321-330. info:/

  • April 7, 2011
  • 08:30 PM

Sex and mosquitoes – transmitting the Zika virus

by Captain Skellett in A Schooner of Science

When Brian Foy returned home to America from a field trip in Senegal, Africa, he didn’t know he was infected with the mosquito spread Zika virus. But just a few days later he was sick with extreme fatigue and joint pain, and so was his wife Chilson. A new study coauthored by the pair and [...]... Read more »

  • April 7, 2011
  • 06:23 PM

The new semantic hub: the posterior middle temporal gyrus

by Greg Hickok in Talking Brains

Most of us agree that conceptual information is represented in a broadly distributed network throughout cortex, but there is disagreement about what the organizational principles of this knowledge might be (see debates between Alfonso Caramazza and Alex Martin or Friedemann Pulvermuller), as well as a debate about the system, or "hub", that binds all of this information together. Here I'm going to focus on the latter question.One hypothesis is that the anterior temporal lobe serves as the brain........ Read more »

  • April 7, 2011
  • 03:45 PM

Beyond the Bacterial Microcompartment

by Merry Youle in Small Things Considered

Bacterial microcompartments were a great innovation. As Alan Derman explained, these protein-bounded structures assist with diverse metabolic processes by housing the requisite enzymes along with their substrates, sequestering potentially toxic intermediates, and allowing the products to exit. But the story does not end there. Enter the nanocompartment.

These are the simplest variation known so far on the theme of bacterial compartments. Like the micro version, these nano structures are thin........ Read more »

Sutter M, Boehringer D, Gutmann S, Günther S, Prangishvili D, Loessner MJ, Stetter KO, Weber-Ban E, & Ban N. (2008) Structural basis of enzyme encapsulation into a bacterial nanocompartment. Nature structural , 15(9), 939-47. PMID: 19172747  

  • April 7, 2011
  • 03:13 PM

Introduction to the N170 Response to Words

by Livia in Reading and Word Recognition Research

Accessibility:  Intermediate-Advanced

This month is N170 month. I'm going to be going through a bunch of papers by Urs Maurer on the N170 ERP component and how it relates to word processing. EEG is not my specialty, so hopefully I won't mess anything up.

For this post, we'll start with the basics. The N170 is an ERP component measured in EEG experiments. The N means that it is a negative potential, and the 170 means that it peaks roughly at around 170 ms, although the timing can vary. T........ Read more »

  • April 7, 2011
  • 02:00 PM

Ethical internet use at work

by David Bradley in Sciencetext

Your boss probably knows all about your misuse of the company internet connection, the IT department will have logged your every Facebook access, registered every viral email you sent, and the dozens of page refreshes you did when you were hoping to snipe that last eBay auction. You might think a good boss would be [...]Post from: David Bradley's Sciencetext Tech TalkEthical internet use at work ... Read more »

Sharman Lichtenstein. (2011) Ethical issues for internet use policy: balancing employer and employee perspectives. Int. J. Technology Management, 54(2/3), 288-303. info:/

  • April 7, 2011
  • 11:30 AM

Putative dopamine neurons that respond to aversive cues and stimuli

by Tantalus Prime in Tantalus Prime

Dopamine neurons are weird. If you look at them up close the axons tend to originate not from the cell body but from a dendrite. They also (perhaps because of this) have a triphasic extracellular waveform that lasts longer than most other types of neurons. Oh, they also fire action potentials in response to reinforcers or reinforcer paired stimuli and are inhibited by aversive stimuli.Or so it would seem.Wang and Tsien (2011) recently provided evidence that there is a small but significant propo........ Read more »

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