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sledgehammer



Posts: 531
Joined: Sep. 2008

(Permalink) Posted: July 03 2009,13:22   

Quote
At the risk of getting too explicit, I leave it the reader's basic grasp of anatomy to figure out why in ancient Rome a man who found pleasure in a woman, could also find pleasure in a man, while the record shows that a heterosexual woman rarely found sexual satisfaction in the company of another woman.

And I leave it to the reader to grasp that the author of this statement has a very poor understanding of female sexual arousal, much less female anatomy and ingenuity!

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The majority of the stupid is invincible and guaranteed for all time. The terror of their tyranny is alleviated by their lack of consistency. -A. Einstein †(H/T, JAD)
If evolution is true, you could not know that it's true because your brain is nothing but chemicals. ?Think about that. -K. Hovind

  
Richardthughes



Posts: 10305
Joined: Jan. 2006

(Permalink) Posted: July 06 2009,08:49   

http://www.dailygalaxy.com/my_webl....on.html


Quote
Although It has taken homo sapiens several million years to evolve from the apes, the useful information in our DNA, has probably changed by only a few million bits. So the rate of biological evolution in humans, Stephen Hawking points out in his Life in the Universe lecture, †is about a bit a year.

"By contrast," Hawking says, "there are about 50,000 new books published in the English language each year, containing of the order of a hundred billion bits of information. Of course, the great majority of this information is garbage, and no use to any form of life. But, even so, the rate at which useful information can be added is millions, if not billions, higher than with DNA."


This means Hawking says that we have entered a new phase of evolution. "At first, evolution proceeded by natural selection, from random mutations. This Darwinian phase, lasted about three and a half billion years, and produced us, beings who developed language, to exchange information."

But what distinguishes us from our cave man ancestors is the knowledge that we have accumulated over the last ten thousand years, and particularly, Hawking points out, over the last three hundred.

"I think it is legitimate to take a broader view, and include externally transmitted information, as well as DNA, in the evolution of the human race," Hawking said.

....




--------------
"Richardthughes, you magnificent bastard, I stand in awe of you..." : Arden Chatfield
"You magnificent bastard! " : Louis
"ATBC poster child", "I have to agree with Rich.." : DaveTard
"I bow to your superior skills" : deadman_932
"...it was Richardthughes making me lie in bed.." : Kristine

  
dvunkannon



Posts: 1377
Joined: June 2008

(Permalink) Posted: July 06 2009,13:55   

Spores Spill Evolution's Secrets


Quote
Developmental "noise" -- the imprecision in molecular pathways that leads to minor slip-ups in development -- creates fodder for evolution. That's the conclusion of a paper published online yesterday (July 5) in Nature, which shows that a single mutation in bacterial spore formation that affect individuals in different ways generates morphological diversity that can then be genetically fine-tuned to maximize an organism's fitness.


I'm guessing Mendel's Accountant doesn't do partial penetrance.

--------------
Iím referring to evolution, not changes in allele frequencies. - Cornelius Hunter
Iím not an evolutionist, Iím a change in allele frequentist! - Nakashima

  
sledgehammer



Posts: 531
Joined: Sep. 2008

(Permalink) Posted: July 06 2009,17:15   

Quote (Richardthughes @ July 06 2009,06:49)
http://www.dailygalaxy.com/my_webl....on.html
† †  
Quote
Although It has taken homo sapiens several million years to evolve from the apes, the useful information in our DNA, has probably changed by only a few million bits. So the rate of biological evolution in humans, Stephen Hawking points out in his Life in the Universe lecture, †is about a bit a year.

...<snip>

Does anybody have even an estimate for how much "useful information" separates H. sapiens from say, A. afarensis, as compared to the genetic variation within the current human population, much less from "apes"?
I suspect it's even less than "only a few million bits".

Anyway, a more useful number genetically, would probably be bits/generation*population rather than bits/year.

Not to disparage the Great Stephen, but HINAB, and I think his main point was to contrast genetic and cultural evolution, so I'm inclined to give him the benefit of the doubt.

--------------
The majority of the stupid is invincible and guaranteed for all time. The terror of their tyranny is alleviated by their lack of consistency. -A. Einstein †(H/T, JAD)
If evolution is true, you could not know that it's true because your brain is nothing but chemicals. ?Think about that. -K. Hovind

  
Henry J



Posts: 4098
Joined: Mar. 2005

(Permalink) Posted: July 06 2009,17:23   

Quote (sledgehammer @ July 06 2009,16:15)
Does anybody have even an estimate for how much "useful information" separates H. sapiens from say, A. afarensis, as compared to the genetic variation within the current human population, much less from "apes"?

Useful to who?

:)

  
Albatrossity2



Posts: 2779
Joined: Mar. 2007

(Permalink) Posted: July 08 2009,09:50   

Monkeys can learn grammar.

Is there hope for Denyse?

--------------
Flesh of the sky, child of the sky, the mind
Has been obligated from the beginning
To create an ordered universe
As the only possible proof of its own inheritance.
† † † † † † † † † † † † - Pattiann Rogers

   
Erasmus, FCD



Posts: 6349
Joined: June 2007

(Permalink) Posted: July 08 2009,10:42   

Quote (dvunkannon @ July 06 2009,14:55)
Spores Spill Evolution's Secrets


 
Quote
Developmental "noise" -- the imprecision in molecular pathways that leads to minor slip-ups in development -- creates fodder for evolution. That's the conclusion of a paper published online yesterday (July 5) in Nature, which shows that a single mutation in bacterial spore formation that affect individuals in different ways generates morphological diversity that can then be genetically fine-tuned to maximize an organism's fitness.


I'm guessing Mendel's Accountant doesn't do partial penetrance.

some of these creationist morons lately have been yammering about SNPs and how they are all deleterious.  fortunately i have already forgotten which creationist moron and where.  

nice

--------------
You're obviously illiterate as hell.†Peach, bro.-FtK

Finding something hard to believe based on the evidence, is science.-JoeG

the odds of getting some loathsome taint are low-- Gordon E Mullings Manjack Heights Montserrat

I work on molecular systems with pathway charts and such.-Giggles

  
Erasmus, FCD



Posts: 6349
Joined: June 2007

(Permalink) Posted: July 22 2009,16:34   

Hand Of God, Wing of Buzzard, both lose

Quote
 Robin Lloyd
LiveScience Senior Editor
LiveScience.com robin Lloyd
livescience Senior Editor
livescience.com Ė Wed Jul 22, 1:46 pm ET

Airplane passengers who like to gaze out at Earth's surface from the window seat have probably noticed this weird phenomenon - many valleys and ridges seem to be evenly spaced. Badlands National Park in South Dakota is a good example.

For decades, scientists have suspected that this strange but widespread regularity emerges from a geological tug-of-war between streams carving rock to create valleys and soil gradually creeping or falling downhill due to disturbances.

A new study by MIT geologist Taylor Perron and his colleagues has worked out a mathematical equation to describe this process and figure out which force is winning the tug-of-war - and by how much.

Their approach also allows them to predict the spacing between valleys and ridges. In fact, Perron and his colleagues tested their primary equation on five landscapes throughout the United States, and correctly predicted the valley and ridge spacings there. The sites included Gabilan Mesa and Napa Valley in the California Coast Ranges; the Dragon's Back pressure ridge along the San Andreas fault in the Carrizo Plain, California; Point of the Mountain in Salt Lake Valley, Utah; and Eaton Hollow in southwestern Pennsylvania.

In all five sites, the equal spacing between valleys is not a result of any structures in the underlying bedrock, such as fractures or faults. The sites are comprised of different a range of rock types, including sandstones, siltstones, conglomerate rocks, and even coal, and have different kinds of vegetation.

Perron said he was surprised to find that the mechanism controlling valley spacing is so simple.

"It was like disassembling a complicated machine, only to discover that it's controlled by a single knob!" he told LiveScience.


clearly he has not tuned into BA^77's youtube channel, which also only has a single knob.  which is polished daily.

--------------
You're obviously illiterate as hell.†Peach, bro.-FtK

Finding something hard to believe based on the evidence, is science.-JoeG

the odds of getting some loathsome taint are low-- Gordon E Mullings Manjack Heights Montserrat

I work on molecular systems with pathway charts and such.-Giggles

  
Timothy McDougald



Posts: 1014
Joined: Dec. 2006

(Permalink) Posted: July 24 2009,19:00   

Ants are more rational than Richardthughes from the abstract:

Quote
Our results confirm that ants are more rational than Richardthughes.
- okay I made that quote up, here is the real abstract:

Quote
Economic models of animal behaviour assume that decision-makers are rational, meaning that they assess options according to intrinsic fitness value and not by comparison with available alternatives. This expectation is frequently violated, but the significance of irrational behaviour remains controversial. One possibility is that irrationality arises from cognitive constraints that necessitate short cuts like comparative evaluation. If so, the study of whether and when irrationality occurs can illuminate cognitive mechanisms. We applied this logic in a novel setting: the collective decisions of insect societies. We tested for irrationality in colonies of Temnothorax ants choosing between two nest sites that varied in multiple attributes, such that neither site was clearly superior. In similar situations, individual animals show irrational changes in preference when a third relatively unattractive option is introduced. In contrast, we found no such effect in colonies. We suggest that immunity to irrationality in this case may result from the antsí decentralized decision mechanism. A colony's choice does not depend on site comparison by individuals, but instead self-organizes from the interactions of multiple ants, most of which are aware of only a single site. This strategy may filter out comparative effects, preventing systematic errors that would otherwise arise from the cognitive limitations of individuals.


--------------
Church burning ebola boy

FTK: I Didn't answer your questions because it beats the hell out of me.

PaV: I suppose for me to be pried away from what I do to focus long and hard on that particular problem would take, quite honestly, hundreds of thousands of dollars to begin to pique my interest.

   
midwifetoad



Posts: 3589
Joined: Mar. 2008

(Permalink) Posted: July 24 2009,23:56   

I feel a bit guilty foisting this website on innocents, but it's the weekend, so what the hey.

http://tvtropes.org/pmwiki/pmwiki.php/Main/EvolutionaryLevels

http://tvtropes.org/pmwiki/pmwiki.php/Main/YouFailBiologyForever

Edit: it occurs to me that teachers could do worse than slyly let a link to this site slip out. Maybe with a warning about adult content.

--------------
Ēletís not make a joke of ourselves.Ē

Pat Robertson

  
Reed



Posts: 274
Joined: Feb. 2008

(Permalink) Posted: July 25 2009,00:23   

Quote (midwifetoad @ July 24 2009,21:56)
I feel a bit guilty foisting this website on innocents, but it's the weekend, so what the hey.

As well you should!

ETA:
Someone recently pointed me to Bob Altemeyer's The Authoritarians (Yeah, I'm probably behind the times.) Anyway, despite some doubts about whether his results merit the significance he attaches to them... his profile of the kind of people attracted to the religious right should be eerily familiar to anyone who has spent any time watching UD or attempting discussion with likes of FTK, Daniel Smith etc.

  
dvunkannon



Posts: 1377
Joined: June 2008

(Permalink) Posted: July 30 2009,10:31   

String Theory Does Something Useful

Explaining some aspect of high temperature superconductivity -
Quote
Because of Zaanen's interest in string theory, he and string theoreticist Koenraad Schalm soon became acquainted after Schalm's arrival in Leiden. Zaanen had an unsolved problem and Schalm was an expert in the field of string theory. Their common interest brought them together, and they decided to work jointly on the research. They used the aspect of string theory known as AdS/CFT correspondence. This allows situations in a large relativistic world to be translated into a description at minuscule quantum physics level. This correspondence bridges the gap between these two different worlds. By applying the correspondence to the situation where a black hole vibrates when an electron falls into it, they arrived at the description of electrons that move in and out of a quantum-critical state.


Sorry BA^77, not teleportation...

--------------
Iím referring to evolution, not changes in allele frequencies. - Cornelius Hunter
Iím not an evolutionist, Iím a change in allele frequentist! - Nakashima

  
Richardthughes



Posts: 10305
Joined: Jan. 2006

(Permalink) Posted: Aug. 06 2009,16:44   

http://www.upi.com/Science....9509244

--------------
"Richardthughes, you magnificent bastard, I stand in awe of you..." : Arden Chatfield
"You magnificent bastard! " : Louis
"ATBC poster child", "I have to agree with Rich.." : DaveTard
"I bow to your superior skills" : deadman_932
"...it was Richardthughes making me lie in bed.." : Kristine

  
midwifetoad



Posts: 3589
Joined: Mar. 2008

(Permalink) Posted: Aug. 07 2009,22:37   

Hope this qualifies as science.

http://www.eurekalert.org/pub_releases/2008-05/sicp-tmp050308.php

Edit: Crap. Saw this on another board and didn't check the date.

Nevermind.

--------------
Ēletís not make a joke of ourselves.Ē

Pat Robertson

  
Lou FCD



Posts: 5379
Joined: Jan. 2006

(Permalink) Posted: Aug. 11 2009,08:37   

dude.

rats.

Big-ass pitcher plant discovered in the Philippines.

Quote
"The plant is among the largest of all carnivorous plant species and produces spectacular traps as large as other species which catch not only insects, but also rodents as large as rats," says McPherson.


--------------
Lou FCD is still in school, so we should only count him as a baby biologist. -carlsonjok -deprecated
I think I might love you. Don't tell Deadman -Wolfhound

Work-friendly photography
NSFW photography

   
ppb



Posts: 325
Joined: Dec. 2006

(Permalink) Posted: Aug. 12 2009,10:38   

OMG!!!

Zombie Ants!

We're doomed!

--------------
"[A scientific theory] describes Nature as absurd from the point of view of common sense. And it agrees fully with experiment. So I hope you can accept Nature as She is - absurd."
- Richard P. Feynman

  
Richardthughes



Posts: 10305
Joined: Jan. 2006

(Permalink) Posted: Aug. 18 2009,16:36   

Get ready for mega-quotemine and Tard jubilation:

http://www.newscientist.com/article....ne-news

Quote
STATISTICAL method that picks out the most significant words in a book could help scholars decode ancient texts like the Voynich manuscript - or even messages from aliens.

Humans find it easy to identify the words that capture the theme of a text - for example, that "whale" is a key word in Moby Dick - but this is a difficult task for computers. Now Marcelo Montemurro, a systems biologist at the University of Manchester, UK, and colleagues have developed a method to identify word importance based on a branch of mathematics called information theory. "It seems that what we call semantics or meaning has a signature at the level of the statistics of words," says Montemurro.



Quote
For a more detailed analysis, the team calculated the "entropy" of each word, a measure of how evenly distributed it is, in both the original text and in a scrambled version in which the words appeared in a random stream. From the difference between the two entropies multiplied by the frequency of the word, the team generated that word's "information value" in the text.

Connective words are fairly uniformly distributed in both the scrambled text and the original, so their information value is low. Significant words have a high value, because they tend to clump in the original and are relatively common. When the team applied the technique to On the Origin of Species, the top 10 words included: species, varieties, hybrids, forms, islands, selection and genera (www.arxiv.org/abs/0907.1558).

Similar methods could have applications in biology, perhaps to identify genes that carry "value". "That's the place where the most direct application of this stuff is," says Marcelo Magnasco at Rockefeller University in New York. "When you're looking at the genome, it's really an alien language."



--------------
"Richardthughes, you magnificent bastard, I stand in awe of you..." : Arden Chatfield
"You magnificent bastard! " : Louis
"ATBC poster child", "I have to agree with Rich.." : DaveTard
"I bow to your superior skills" : deadman_932
"...it was Richardthughes making me lie in bed.." : Kristine

  
J-Dog



Posts: 4368
Joined: Dec. 2006

(Permalink) Posted: Aug. 18 2009,16:46   

Quote (Richardthughes @ Aug. 18 2009,16:36)
Get ready for mega-quotemine and Tard jubilation:

 
Quote
STATISTICAL method that picks out the most significant words in a book could help scholars decode ancient texts like the Voynich manuscript - or even messages from aliens.

Cliff notes:

If you ran any UD posts and/or comments through this filter, chances of finding Tard are 100%.

--------------
Come on Tough Guy, do the little dance of ID impotence you do so well. - Louis to Joe G 2/10

Gullibility is not a virtue - Quidam on Dembski's belief in the Bible Code Faith Healers & ID 7/08

UD is an Unnatural Douchemagnet. - richardthughes 7/11

  
Erasmus, FCD



Posts: 6349
Joined: June 2007

(Permalink) Posted: Aug. 18 2009,17:00   

most informative words for UD

herring
oil
soaked
strawman
right
reasoning
always
linked
evolution
can't
objective
morality
Dawkins
onlookers
provisional
common
design
darwinbots

--------------
You're obviously illiterate as hell.†Peach, bro.-FtK

Finding something hard to believe based on the evidence, is science.-JoeG

the odds of getting some loathsome taint are low-- Gordon E Mullings Manjack Heights Montserrat

I work on molecular systems with pathway charts and such.-Giggles

  
Henry J



Posts: 4098
Joined: Mar. 2005

(Permalink) Posted: Aug. 18 2009,19:47   

Quote
Quote
Similar methods could have applications in biology, perhaps to identify genes that carry "value". "That's the place where the most direct application of this stuff is," says Marcelo Magnasco at Rockefeller University in New York. "When you're looking at the genome, it's really an alien language."


Wonder what subjects this guy knows. After reading that, I wouldn't trust his judgment in either genetics or linguistics.

Henry

  
Quack



Posts: 1784
Joined: May 2007

(Permalink) Posted: Aug. 19 2009,04:24   

Quote (Lou FCD @ Aug. 11 2009,08:37)
dude.

rats.

Big-ass pitcher plant discovered in the Philippines.

Quote
"The plant is among the largest of all carnivorous plant species and produces spectacular traps as large as other species which catch not only insects, but also rodents as large as rats," says McPherson.

Link is doubled, fixed here

--------------
The first principle is that you must not fool yourself ‚ÄĒ and you are the easiest person to fool.
¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬†¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬†         Richard Feynman

  
Richardthughes



Posts: 10305
Joined: Jan. 2006

(Permalink) Posted: Aug. 19 2009,19:04   

http://www.technologyreview.com/blog/editors/24010/?a=f

evolving robots

--------------
"Richardthughes, you magnificent bastard, I stand in awe of you..." : Arden Chatfield
"You magnificent bastard! " : Louis
"ATBC poster child", "I have to agree with Rich.." : DaveTard
"I bow to your superior skills" : deadman_932
"...it was Richardthughes making me lie in bed.." : Kristine

  
Timothy McDougald



Posts: 1014
Joined: Dec. 2006

(Permalink) Posted: Aug. 19 2009,20:07   

Advance in understanding endosymbiosis

--------------
Church burning ebola boy

FTK: I Didn't answer your questions because it beats the hell out of me.

PaV: I suppose for me to be pried away from what I do to focus long and hard on that particular problem would take, quite honestly, hundreds of thousands of dollars to begin to pique my interest.

   
Lou FCD



Posts: 5379
Joined: Jan. 2006

(Permalink) Posted: Aug. 21 2009,18:33   

Epicycles, the Idea that Just Won't Die.

Quote
Current thinking about how spiral galaxies form traces back to an idea nearly 2 millennia old, to 2nd-century Egyptian mathematician Ptolemy. Trying to describe how the five planets in the night sky followed seemingly irregular paths, Ptolemy hit upon an idea he called epicycles. Basically, the theory posits that, as an object orbits, it performs little loops that make it appear to wobble. The idea was revived in the 1920s to explain similar irregular movements among the stars in the Milky Way and later still to describe the formation of galactic spiral arms. But there have been little data to support it.


--------------
Lou FCD is still in school, so we should only count him as a baby biologist. -carlsonjok -deprecated
I think I might love you. Don't tell Deadman -Wolfhound

Work-friendly photography
NSFW photography

   
ppb



Posts: 325
Joined: Dec. 2006

(Permalink) Posted: Aug. 25 2009,14:17   

This looks interesting.  A researcher in Canada wants to manipulate developing chicken embryos to resurrect ancient dinosaur features.

http://www.ctvbc.ctv.ca/servlet....biaHome

Hans Larsson, a paleontologist at McGill University, got the idea from discussions with Jack Horner.

It will be interesting to see how much genetic information remains to be turned back on.

--------------
"[A scientific theory] describes Nature as absurd from the point of view of common sense. And it agrees fully with experiment. So I hope you can accept Nature as She is - absurd."
- Richard P. Feynman

  
Albatrossity2



Posts: 2779
Joined: Mar. 2007

(Permalink) Posted: Aug. 25 2009,15:48   

Quote (ppb @ Aug. 25 2009,14:17)
This looks interesting. †A researcher in Canada wants to manipulate developing chicken embryos to resurrect ancient dinosaur features.

http://www.ctvbc.ctv.ca/servlet....biaHome

Hans Larsson, a paleontologist at McGill University, got the idea from discussions with Jack Horner.

It will be interesting to see how much genetic information remains to be turned back on.

In 1980 a couple of scientists reported that teeth could be induced to grow from the right combination of mouse mesenchyme and chicken jaw epithelium. (Kollar E.J. & Fisher C., "Tooth induction in chick epithelium: expression of quiescent genes for enamel synthesis," Science, Vol. 207, February 29, 1980, pp.993-5). The hypothesis was that long-dormant chicken genes were activated by some signal in the mouse tissue; those were dinosaur molars!

In 2006 another pair of scientists published a paper in Current Biology (summarized here), reporting some progress in identifying the signaling pathways that might be involved in chicken tooth production.

--------------
Flesh of the sky, child of the sky, the mind
Has been obligated from the beginning
To create an ordered universe
As the only possible proof of its own inheritance.
† † † † † † † † † † † † - Pattiann Rogers

   
Henry J



Posts: 4098
Joined: Mar. 2005

(Permalink) Posted: Aug. 25 2009,20:16   

Quote
A researcher in Canada wants to manipulate developing chicken embryos to resurrect ancient dinosaur features.


Goody; research somebody can sink their teeth into!

Henry

  
Quack



Posts: 1784
Joined: May 2007

(Permalink) Posted: Aug. 26 2009,00:43   

Quote (Henry J @ Aug. 25 2009,20:16)
† †  
Quote
A researcher in Canada wants to manipulate developing chicken embryos to resurrect ancient dinosaur features.


Goody; research somebody can sink their teeth into!

Henry

Another case of thunder thievery - S-F coming true?

--------------
The first principle is that you must not fool yourself ‚ÄĒ and you are the easiest person to fool.
¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬†¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬† ¬†         Richard Feynman

  
Lou FCD



Posts: 5379
Joined: Jan. 2006

(Permalink) Posted: Aug. 27 2009,20:12   

Quote
August 26, 2009óWith needle-sharp poisonous fangs and powerful limbs sprouting from its head, you probably won't find this crab cousin floating in a creamy bisque anytime soon.

The newfound eyeless crustacean was recently discovered in the world's longest underwater lava tube, on the island of Lanzarote in the Spanish-ruled Canary Islands. (See map.)


More here, at NatGeo.

--------------
Lou FCD is still in school, so we should only count him as a baby biologist. -carlsonjok -deprecated
I think I might love you. Don't tell Deadman -Wolfhound

Work-friendly photography
NSFW photography

   
Henry J



Posts: 4098
Joined: Mar. 2005

(Permalink) Posted: Aug. 27 2009,21:40   

Quote
Element 112 shall be named copernicium
Proposed name honours astronomer Nicolaus Copernicus

In honour of scientist and astronomer Nicolaus Copernicus (1473-1543), the discovering team around Professor Sigurd Hofmann suggested the name copernicium with the element symbol Cp for the new element 112, discovered at the GSI Helmholtzzentrum f?r Schwerionenforschung (Center for Heavy Ion Research) in Darmstadt.


http://www.webelements.com/

Henry

  
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