12/28/2006

Freshwater Dolphin (Possibly) Extinct, Planet Earth a Little Less Interesting (7/14/08 UPDATE)

What's this? It's a nearly blind, freshwater dolphin that used to hunt, play, and goof around in the Yangtze River. They were pretty timid, hard to find, and in the last days of 2006 the survey group declared these mammals functionally extinct. The last one spotted in the wild was beached and dying in 2004. There were never very many of these in the first place. Here's a excerpt timeline from wikipedia:
1986: Population estimated to be 300
1989: Gezhouba Dam complete
1990: Population estimated to be 200
1994: Construction of the Three Gorges Dam begins
1996: IUCN lists the species as critically endangered
1997: Population estimated to be less than 50 (23 found in survey)
1998: 7 found in survey
2003: Three Gorges Dam begins filling reservoir
2004: Last known sighting, a stranded dead dolphin
2006: None found in survey, declared "with all probability extinct".
These dolphins were nicknamed "Goddess of the Yangtze", they were a symbol of peace and prosperity, and were described in the Erya, the oldest known Chinese dictionary (3rd century BC).
You know how these mammals hunt in murky water practically blind? They use echolocation, they emit sound and use the echoes that return from their surroundings to identify, range, and close in on their target.
You know how humans hunt? If the spirit moves them, they haul their candy asses off the couch, walk into the kitchen, and stare into the fridge.
As a species, the Baiji, or white dolphin, had been around for nearly 20 million years. In December of 2006, it got almost 4 inches of press in the New York Times, and has been mentioned on a few blogs.

July 14 2008: There may be hope for the Baiji yet. According to Science Daily and BBC News, a sighting of what is believed to be a Baiji dolphin occured in August 2007. Despite the fact that a scientific expedition the previous year found no evidence of dolphins, leading to the declaration that this unique species was most likely extinct; scientists have confirmed that the footage shot by a local businessman in Tongling City could very well be the Yangtze River dolphin. Unfortunately, the World Wildlife Fund believes that unless drastic changes are made to protect these creatures and their habitat, chances are that this dolphin will be very lonely during the last years of it's life. -Jessica Noel

ps. Never, never, never, never give up. -Winston Churchill

12/27/2006

Tier I Mathematics Qualifying Exams, Jan. 3, Jan. 5, 2007

The qualifying exam for Algebra is only days away, January 3rd, 2007. Have you been to the library? The Analysis exam is Friday, January 5. Set aside those Christmas gifts and stop by the Swain Hall Library before the new year. We're closed this weekend, so take the opportunity to borrow both algebra and analysis titles that will help you prepare for these exams.

12/20/2006

Subscription Price Increase, Numerical Functional Analysis and Optimization


This Taylor and Francis journal is going from $1617 to $2426 in 2007. A 50% increase in price in one year, however, I hear they're producing that many more papers. The editors may want to consider increasing the price and publishing more papers when there is more evidence that the impact of the journal is on the rise. Math Department and the Swain Hall Library Committee, what are your thoughts on this? I'm not sure this journal is primarily serving mathematicians, it may be used most by the Business School and Economics.

Numerical Functional Analysis and Optimization

12/12/2006

Clearing the display area for Christmas


12/08/2006

Where was the Friday Library Snack?


What was today's Science Snack? It was nothing. You know what, I'm pretty sick and tired of people pulling spiral bound sheets out of their notebooks here in the library and tossing the remains on the floor. Use the trash cans. You know when you're freeing your spiral bound notebook of this pesky edge paper, you're not holding a turd in your hand, it's paper. Get up and put it in the trash can or recycle it. I'll bring in some snacks next week, maybe. Good luck with finals.

12/01/2006

Spotlight on New Bayesian Analysis book


Don't miss JK Ghosh's new "Introduction to Bayesian Analysis: Theory and Methods" fresh off the new book shelf this week. Granted, Ghosh is in West Lafayette at Purdue, however, this seems to be a sound text and a perfect graduate level introductory book. Corrections, additional comments, and more problems can be found at http://www.isical.ac.in/~tapas/book/
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