Post List

  • September 15, 2010
  • 10:24 AM
  • 970 views

Why this extinction isn’t like the others

by sarcozona in gravity's rainbow



Almost a month ago I told you I'd have more to say [...]... Read more »

  • September 15, 2010
  • 10:16 AM
  • 1,173 views

This Week in the Universe: September 9th – September 15th

by S.C. Kavassalis in The Language of Bad Physics

Astrophysics and Gravitation:
Astrophysics, by General Mills
Vella, D., & Mahadevan, L. (2005). The “Cheerios effect” American Journal of Physics, 73 (9) DOI: 10.1119/1.1898523
FOX News and a few other news agencies have discovered the Cheerios Effect this week (unfortunately, MSNBC beat them to this scope by about five years).  Back in 2005, Vella and Mehadevan described the “Cheerios Effect”, the tendency for small, wet, objects to attract each other.
From the abstract:
Ob........ Read more »

Vella, D., & Mahadevan, L. (2005) The “Cheerios effect”. American Journal of Physics, 73(9), 817. DOI: 10.1119/1.1898523  

O. Adriani, & et al. (2010) PAMELA Results on the Cosmic-Ray Antiproton Flux from 60 MeV to 180 GeV in Kinetic Energy. Phys. Rev. Lett., 105(12), 1101-1106. info:/10.1103/PhysRevLett.105.121101

  • September 15, 2010
  • 09:54 AM
  • 455 views

The Best Way to Search for your Lost Dog

by Psychology 379 bloggers in Cognition & the Arts

Which “Missing Pet” sign would be most helpful in a search? It is hard to say since humans use both specific visual detail (poster with picture) and general semantic knowledge (poster with text) when searching for an object, or in this case a missing animal.  The study below examines whether general semantic knowledge or specific [...]... Read more »

  • September 15, 2010
  • 09:51 AM
  • 645 views

Stegosaurus Week: Tracking Cryptic Stegosaurs

by Brian Switek in Dinosaur Tracking

The first trace of the plated, spiky stegosaurian dinosaurs was found in Early Cretaceous rock near Grahamstown, South Africa. Uncovered by W. G. Atherstone and A. G. Bain in 1845, the dinosaur was represented by a partial skull and several limb bones. The naturalists felt unqualified to study them and sent the fossils to [...]... Read more »

  • September 15, 2010
  • 09:05 AM
  • 1,722 views

Tip of the Week: CircuitsDB for TF/miRNA/gene Regulation Networks

by Jennifer in OpenHelix


In this week’s tip I’d like to introduce you to CircuitsDB, which describes itself as:
“…a database where transcriptional and post-transcriptional (miRNA mediated) network information is fused together in order to propose and recognize non trivial regulatory combinations. “
I found out about the database from the BioMed Central article “CircuitsDB: a database of mixed microRNA/transcription factor feed-forward regulatory circuits in human and mouse“, wh........ Read more »

  • September 15, 2010
  • 08:00 AM
  • 1,670 views

FDA Advisory on Sibutramine

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

This morning, I will be addressing an Advisory Committee appointed by the US Food and Drug Administration (FDA) to evaluate the risk/benefit of sibutramine, an anti-obesity drug that has been on the market for over a decade.
The FDA advisory was prompted by the results of the Sibutramine Cardiovascular OUTcomes (SCOUT) study, published last week in [...]... Read more »

James WP, Caterson ID, Coutinho W, Finer N, Van Gaal LF, Maggioni AP, Torp-Pedersen C, Sharma AM, Shepherd GM, Rode RA.... (2010) Effect of sibutramine on cardiovascular outcomes in overweight and obese subjects. The New England journal of medicine, 363(10), 905-17. PMID: 20818901  

  • September 15, 2010
  • 07:13 AM
  • 664 views

To help or not to help?

by Becky in It Takes 30

The theory of kin selection — the notion that cooperative behavior in animals evolved because cooperation to enhance the survival of your kin also enhances the survival of your own genes — has been a dominant and widely-discussed idea for decades. Though it has recently been challenged, the response from the community has been vigorous.  [...]... Read more »

Cornwallis CK, West SA, Davis KE, & Griffin AS. (2010) Promiscuity and the evolutionary transition to complex societies. Nature, 466(7309), 969-72. PMID: 20725039  

  • September 15, 2010
  • 07:07 AM
  • 1,447 views

How do we know…? Where we are in the Galaxy

by Niall in we are all in the gutter

Well it’s easy isn’t it, we just go outside the Galaxy, take a picture looking back and see where the Sun sits and what the Galaxy looks like. If only it were that simple. The problem with figuring out our place in the Galaxy is that we are sitting inside it. This means we have to work harder to determine the fine details of the structure of the Galaxy. ... Read more »

Ghez, A., Salim, S., Weinberg, N., Lu, J., Do, T., Dunn, J., Matthews, K., Morris, M., Yelda, S., Becklin, E.... (2008) Measuring Distance and Properties of the Milky Way’s Central Supermassive Black Hole with Stellar Orbits. The Astrophysical Journal, 689(2), 1044-1062. DOI: 10.1086/592738  

  • September 15, 2010
  • 07:05 AM
  • 1,050 views

How do we know…? Where we are in the Galaxy

by Niall in we are all in the gutter

Well it's easy isn't it, we just go outside the Galaxy, take a picture looking back and see where the Sun sits and what the Galaxy looks like. If only it were that simple. The problem with figuring out our place in the Galaxy is that we are sitting inside it. This means we have to work harder to determine the fine details of the structure of the Galaxy.... Read more »

Ghez, A., Salim, S., Weinberg, N., Lu, J., Do, T., Dunn, J., Matthews, K., Morris, M., Yelda, S., Becklin, E.... (2008) Measuring Distance and Properties of the Milky Way’s Central Supermassive Black Hole with Stellar Orbits. The Astrophysical Journal, 689(2), 1044-1062. DOI: 10.1086/592738  

  • September 15, 2010
  • 07:04 AM
  • 904 views

Going green… literally

by Brian Lambson in Berkeley Science Review Blog

While impressive, the last few decades of human achievement in photovoltaics pale in comparison to nature’s equivalent technology: photosynthesis. Just look at the numbers—every year photosynthesis produces about 3,000 exajoules (EJ) of chemical energy, or 7 x 1017 kilocalories, which equates to about half the total energy stored in the world’s petroleum reserves (and approximately the average daily caloric intake of eating champ Joey Chestnut). Compare this to the 0.1 EJ of electrical en........ Read more »

Sarovar, M., Ishizaki, A., Fleming, G., & Whaley, K. (2010) Quantum entanglement in photosynthetic light-harvesting complexes. Nature Physics, 6(6), 462-467. DOI: 10.1038/nphys1652  

Ham, M.-H., Choi, J. H., Boghossian, A. A., Jeng, E. S., Graff, R. A., Heller, D. A., Chang, A. C., Mattis, A., Bayburt, T. H., Grinkova, Y. V.... (2010) Photoelectrochemical complexes for solar energy conversion that chemically and autonomously regenerate. Nature Chemistry. info:/10.1038/nchem.822

  • September 15, 2010
  • 06:51 AM
  • 870 views

Modern Tract-Tracing for Historical Psychosurgery

by The Neurocritic in The Neurocritic

Figure 3 (Schoene-Bake et al., 2010). Intersection of connectivity maps of Anterior Capsulotomy (red), Anterior Cingulotomy (blue), and Subcaudate Tractotomy (green) tracking results. Overlap of AC and ACT shown with magenta, AC and SCT in yellow, and ACT and SCT in cyan. The white area shows overlapping of AC, ACT, and SCT mean probability-tracking maps in axial (a), coronal (b), and sagittal (c) slices. Acg, anterior cingulate gyrus; ATR, anterior thalamic radiation; CST, corticospinal tract; ........ Read more »

Schoene-Bake, J., Parpaley, Y., Weber, B., Panksepp, J., Hurwitz, T., & Coenen, V. (2010) Tractographic Analysis of Historical Lesion Surgery for Depression. Neuropsychopharmacology. DOI: 10.1038/npp.2010.132  

  • September 15, 2010
  • 06:44 AM
  • 1,836 views

why millions of deaths can be “just” a statistic…

by Greg Fish in weird things

According to Eddie Izzard, if you kill someone, that’s murder and you go to jail for the rest of your life. If you kill ten people, you’re sent to Texas where the officials hit you with a brick on the head. Kill twenty people, and the judge will throw you into a mental hospital where [...]... Read more »

  • September 15, 2010
  • 06:00 AM
  • 1,581 views

Trick of the trade: I got ultrasound gel in my eye!

by Michelle Lin in Academic Life In Emergency Medicine

Bedside ultrasonography is increasingly being used in the ED to examine the eye. For instance, it can be used to detect a retinal detachment, vitreous hemorrhage, and high intracranial pressure. The technique involves applying ultrasound gel on the patient's closed eyelid. A generous amount of gel should be used to minimize the amount of direct pressure applied on the patient's eye by the ultrasound probe.Sometimes, however, no matter how careful you and the patient are, some gel accidentally co........ Read more »

  • September 15, 2010
  • 05:30 AM
  • 447 views

The current global recession is the most important time for governments to spend rather than save

by SAGE Insight in SAGE Insight

Social Security spending in times of crisis From Global Social Policy While it could be assumed that times of financial crisis, like the current global recession, requires a tightening of the government’s purse strings, this research argues that in fact common sense and past experience tells us that countries should be encouraged to adopt expansionary [...]... Read more »

Prasad, N., & Gerecke, M. (2010) Social Security Spending in Times of Crisis. Global Social Policy, 10(2), 218-247. DOI: 10.1177/1468018110366627  

  • September 15, 2010
  • 05:22 AM
  • 892 views

The ‘Tigger’ effect – resilience & emotion-regulation

by Bronwyn Thompson in Healthskills: Skills for Healthy Living

Tigger. That orange-furred, black-striped, tiger character originally introduced in A. A. Milne’s book The House at Pooh Corner. Tigger is a very bouncy fella. Tigger is amongst the most exuberant creatures in the 100 Acre Wood, and his most stand out and well-known feature is his very springy tail. Tigger has resilience. The wonderful thing … Read more... Read more »

BERKING, M., WUPPERMAN, P., REICHARDT, A., PEJIC, T., DIPPEL, A., & ZNOJ, H. (2008) Emotion-regulation skills as a treatment target in psychotherapy☆. Behaviour Research and Therapy. DOI: 10.1016/j.brat.2008.08.005  

  • September 15, 2010
  • 04:52 AM
  • 791 views

Why are women chosen to lead organisations in a crisis?

by BPS Research Digest in BPS Research Digest

The majority of major corporations and countries are headed by men. When women are appointed to leadership positions, it tends to be when an organisation is in crisis - a phenomenon known as the glass cliff. Recent examples include: the appointment of Lynn Elsenhans as CEO of the oil company Sunoco in 2008, just after their shares had halved in value; and the election of Jóhanna Sigurðardóttir as prime minister of Iceland, just after her country's economy had been crippled by the global reces........ Read more »

  • September 15, 2010
  • 03:48 AM
  • 633 views

Another step to understanding self

by Janet Kwasniak in Thoughts on thoughts

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An open question in neuroscience is “How is the self, the ‘I’ constructed?” The more it is examined, the less simple the idea of the self becomes. There is more than one self for different purposes and the limits of these selves are variable depending on the circumstances. We do not [...]... Read more »

  • September 14, 2010
  • 10:32 PM
  • 1,248 views

Hair Cortisol as a Predictive Biomarker for Heart Attack

by Walter Jessen in Highlight HEALTH

Whether it's stress from a job, financial, or relationship issues, chronic stress has been linked to an increased risk for developing cardiovascular disease. A recent study has found that the level of cortisol in hair can be used as a biomarker to measure chronic stress and the risk of heart attack in men.... Read more »

Pereg D, Gow R, Mosseri M, Lishner M, Rieder M, Van Uum S, & Koren G. (2010) Hair cortisol and the risk for acute myocardial infarction in adult men. Stress (Amsterdam, Netherlands). PMID: 20812871  

  • September 14, 2010
  • 07:36 PM
  • 988 views

Supply Chain Risk Management Dissertations (Process oriented Risk Management of Product Risks)

by Daniel Dumke in SCRM Blog - Supply Chain Risk Management


This is the second contribution to my series on doctoral dissertations on Supply Chain Risk Management. An immense effort and dedication is spent on these works only to find the results hidden in the libraries. So the goal is raise interest in their research.

Author / Topic
This dissertation was written by Jörn Dahmen 2009 as his doctoral thesis at the RWTH, Aachen (one of the most renowned Technical Universities in Germany). It was published by Shaker, Aachen and can be ordered here from........ Read more »

Dahmen, Jörn. (2002) Prozeßorientiertes Risikomanagement zur Handhabung von Produktrisiken. Shaker, Aachen, Dissertation. info:/

  • September 14, 2010
  • 07:00 PM
  • 777 views

Gonorrhea and immune evasion

by Kevin Bonham in Food Matters

Lots of bacteria try to colonize our mucosal surfaces – that’s airways (step throat, tuberculosis), gut (E. coli, Salmonella), aural cavity (ear infections), and urogenital tract (UTI’s, chlamydia). These regions of our bodies are exposed to the outside world, so they’re easy to access, and are usually pretty accommodating places for bugs to grow (warm, [...]... Read more »

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