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Bora Zivkovic

My scientific specialty is chronobiology (circadian rhythms and photoperiodism), with additional interests in comparative physiology, animal behavior and evolution. I am not an MD so I cannot diagnose and treat your sleep problems. As well as writing this blog, I am also the Online Discussion Expert for PLoS. This is a personal blog and opinions within it in no way reflect the policies of PLoS. You can contact me at: Coturnix@gmail.com

Posts by this author

November 29, 2006
While all this was going on I was wondering where Jason Rosenhouse would stand on all of this. He is back from a break and has two posts on the issue here and here. Update: Chris Rowan wrote an intriguing analysis and a huge thread on the topic is still ongoing on Panda's Thumb
November 29, 2006
A paper just got published in PLoS - Biology - "A Human Taste for Rarity Spells Disaster for Endangered Species" - describes how high monetary value of rare species leads to a vicious spiral in which each capture reduces the remaining number of individuals at the same time as increasing the…
November 29, 2006
Made With Molecules online store is expanding its offerings. Sure serotonin earrings are cool, but nothing beats the familiar and soothing effects of theobromine and caffeine. Check them out! (Hat-tip: Vaughan
November 29, 2006
Josh Wilson finds a new (to me, at least) metaphor that puts the geological time in perspective, and Carel discovers some cool models that place the astronomical size and space in perspective. Humbling and edifying. Good ideas for science teachers.
November 29, 2006
The original title of this post - "Diurnal rhythm of alcohol metabolism" - was more correct, but less catchy (from February 21, 2006). ---------------------------------------------- Why is breathalyzer a poor method of measuring blood alcohol levels for purposes of DUI tickets? Ed Brayton…
November 29, 2006
It appears that the letter K is a niche that still has ample remaining space for new enterprenurial souls... Keats' telescope Kele's Journey Kill The Afterlife King of Zembla Kiss & Blog Kleinschmidt 2005 Kottke The Krafty Librarian Kung Fu Monkey Previously (and please you can add suggestions…
November 29, 2006
Paul Gilster of Centauri Dreams blog, and the book of the same name, is coming to the 2007 North Carolina Science Blogging Conference. Are you? Technorati Tag: sciencebloggingconference
November 28, 2006
The Carnival of Education: Week 95 is up on A History Teacher. Carnival of Homeschooling #48 is up on The Common Room.
November 28, 2006
Here's another letter for you: The japing ape Jenny D Jesus' General jill/txt Joe Bageant John Hawks Anthropology Weblog John Quiggin Jonstraveladventures Jon Swift Journal of the Plague Year Josh Steiger The J Train Just a Bump in the Beltway Just Noticeable Differences Check the previous letters…
November 28, 2006
The story about National Science Teachers of America refusing the "Inconvenient Truth" DVDs is not as black & white as previously reported. Sandra Porter has a good run-down.
November 28, 2006
Grand Rounds Vol. 3, No. 10, now up on Notes from Dr. RW
November 28, 2006
Send your submissions for the Festival of the Trees by tomorrow. Also, send your submissions for the Circus of the Spineless by December 4th.
November 28, 2006
I wish that, many many years ago when I was becoming a biologist, that I could have read this wonderful little book - On Becoming a Biologist by John Janovy! What a little gem! On the surface, or by looking at the Table of Contents, this slim volume appears to be just yet another in a long line of…
November 28, 2006
In the similar vein to this morning's post (and the neccessary link within it) on the speed of meme-spreading, I tried to do this little experiment about a year ago (October 12, 2005) with no success - perhaps because I asked for more than just a link. Now that my audience is much bigger, let's…
November 28, 2006
NewsTrust is a news portal that rates the stories by the quality of the journalism, as assessed by readers. Readers are asked to rate stories based on how fair, balanced, accurate, and important the stories are, along with other criteria. The system has been set up to try and limit gaming of the…
November 28, 2006
Some things spread like wildfire across the blogs. But, can an artificial meme, designed specifically to measure the speed of its spreading, spread as fast? If we know its speed, can we know its position at the same time, and vice versa? You'll know the answer (pretty soon) if you link to this…
November 28, 2006
Aching Back? Sitting Up Straight Could Be The Culprit: Researchers are using a new form of magnetic resonance imaging (MRI) to show that sitting in an upright position places unnecessary strain on your back, leading to potentially chronic pain problems if you spend long hours sitting. Sleep…
November 28, 2006
David Kirk is coming to the 2007 North Carolina Science Blogging Conference. Are you? Technorati Tag: sciencebloggingconference
November 27, 2006
Is this useful to you? It is useful to me, for sure, as my blogroll is in a bad need of updating. By doing this, I get to clean-up my Bloglines, update the feeds on blogs that have moved, delete dead blogs, revisit some old friends I have not read in a while, and add new blogs that you suggest in…
November 27, 2006
It's been almost three months since Arunn, in the comments to this post, promised to write a post about the thermoregulatory function of big, flappy elephant ears. Finally, he's gotten to it, and now you can go and read his post. A perfect entry for the next edition of Panta Rei, which needs your…
November 27, 2006
Radiology Grand Rounds - VI - now up on Spot Diagnosis
November 27, 2006
A short-but-sweet study (March 18, 2006): -------------------------------------------- I remember from an old review that John Palmer did a study on the diurnal pattern of copulation in humans some years ago. You can see the abstract here. Now, Roberto Reffinetti repeated the study and published…
November 27, 2006
Opposites Do Not Attract, Parrot Study Finds: A study conducted at the University of California, Irvine, found that a female budgerigar prefers to mate with a male that sounds like her. Dragonfly's Metabolic Disease Provides Clues About Human Obesity: Parasite-infected dragonflies suffer the same…
November 27, 2006
Danita Russell of Random Ramblings is coming to the 2007 North Carolina Science Blogging Conference. Are you? Technorati Tag: sciencebloggingconference
November 26, 2006
As always, check the list and see if anything is wrong or missing: Hairy Museum of Natural History The Half Decent Pharmaceutical Chemistry Blog Halfway There Harper Valley Happening-here? Happy Furry Puppy Story Time with Norbizness Head in a Cloud Head Nurse Heaven is not the sky Hellbound Alleee…
November 26, 2006
The Synapse #12 is up on Dr. Deborah Serani's blog
November 26, 2006
Recovering alcoholics with poor sleep perceptions will likely relapse: "The usual perception of alcohol's effects on sleep in nonalcoholics is that it helps sleep," explained Deirdre A. Conroy, the corresponding author who conducted the research while a postdoctoral fellow at the University of…
November 26, 2006
Pam has moved from here to here. You have to register to comment, but the process is easy. The new site is built on Soapblox and looks gorgeous. Oh, and you'll be able to post your own diaries in the near future. So, change your bookmarks, blogrolls and newsfeeds and enjoy your morning cup of…
November 26, 2006
Laurie David, one of the producers of An Inconvenient Truth, wrote a piece for today's Washington Post describing her efforts to make 50,000 DVD copies of that movie available to America's science teachers through NSTA. They said no. And, more weirdly, they explained why. Read the rest here.…
November 26, 2006
I am sure glad that others have started parsing the numbers of the new report on 'The Internet as a Resource for News and Information about Science'. Duane Smith takes a close look at a couple of tables in the report and concludes that, while relatively few people say they get their information…