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All things Science related. λν = c

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Old 11-12-2013, 05:59 PM   #316
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Re: All things Science related. λν = c

Quote:
Originally Posted by SmootSmack View Post






Why am I not surprised at such a thing.
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Old 11-15-2013, 10:25 AM   #317
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Re: All things Science related. λν = c

RNA controls splicing during gene expression, further evidence of 'RNA world' origin in modern life. - Phys.org

RNA is the key functional component of spliceosomes, molecular machines that control how genes are expressed, report scientists from the University of Chicago online, Nov. 6 in Nature. The discovery establishes that RNA, not protein, is responsible for catalyzing this fundamental biological process and enriches the hypothesis that life on earth began in a world based solely on RNA.

"Two of the three major processes in eukaryotic gene expression—splicing and translation—are now shown to be catalyzed by RNA," said Jonathan Staley, PhD, associate professor of molecular genetics and cell biology at the University of Chicago and co-corresponding author on the study. "The eukaryotic gene expression pathway is more of an RNA-based pathway than protein-based."
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Old 01-10-2014, 09:20 AM   #318
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Re: All things Science related. λν = c

Ice Tsunami.Glacier like ice moving across Mille Lacs damaging houses Minnesota seems to be alive! - YouTube

This is really neat home video. Basically intense winds on the other side of the lake are shifting the entire ice sheet. I believe some of the forces here are the same used to form glaciers over time but at a smaller and faster rate witnessed here.
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Old 01-23-2014, 08:55 PM   #319
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Re: All things Science related. λν = c



Watch now!
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Old 01-26-2014, 10:36 AM   #320
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Re: All things Science related. λν = c

Stephen Hawking says that we should ditch our concept of the black hole and talk about "grey holes" instead.

No Black Holes? More Like Grey Holes, Says Hawking : Discovery News
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Old 01-26-2014, 12:24 PM   #321
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Re: All things Science related. λν = c

Meant to post this a few days ago, but the first exploding star close to our galaxy in quite some time.

Exploding Star: New Supernova Discovery Is Closest in Years | Space.com


Only 12 million light years away...lol
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Old 01-26-2014, 05:02 PM   #322
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Quote:
Originally Posted by Lotus View Post
Stephen Hawking says that we should ditch our concept of the black hole and talk about "grey holes" instead.

No Black Holes? More Like Grey Holes, Says Hawking : Discovery News
He's a troublemaker.

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Old 01-29-2014, 10:07 AM   #323
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Re: All things Science related. λν = c

Scientists in Japan showed stem cells can now be made quickly just by dipping blood cells into acid.

BBC News - Stem cell 'major discovery' claimed

She added: "It's exciting to think about the new possibilities these findings offer us, not only in regenerative medicine, but cancer as well."
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Old 02-02-2014, 10:51 PM   #324
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Re: All things Science related. λν = c

Hurry it up!

Are We Too Close to Making Gattaca a Reality? - Scientific American


Preventing and treating diseases are not the only reasons people have turned to pre-implantation genetic diagnosis. PGD also makes it possible for parents to predetermine characteristics of a child to suit their personal preferences. In a few cases, people have used PGD to guarantee that a child will have what many others would consider a disability, such as dwarfism or deafness. In the early 2000s, lesbian couple Sharon Duchesneau and Candy McCullough—both deaf from birth—visited one sperm bank after another searching for a donor who was also congenitally deaf. All the banks declined their request or said they did not take sperm from deaf men, but the couple got what they were looking for from a family friend. Their son, Gauvin McCullough, was born in November 2001; he is mostly deaf but has some hearing in one ear. Deafness, the couple argued, is not a medical condition or defect—it is an identity, a culture. Many doctors and ethicists disagreed, berating Duchesneau and McCullough for deliberately depriving a child of one of his primary senses.


And:

Since Steinberg’s contentious proposal in 2009, researchers have developed a much clearer understanding of the various genes responsible for the pigments in our bodies. Forensic geneticist Manfred Kayser of Erasmus MC and his colleagues have published many studies in which they have accurately identified people’s eye and hair color by looking at their DNA. Their tests cannot recognize every possible shade, but they are specific enough to distinguish between brown, blue and mottled brown-blue eyes, as well as brown, black, blonde and red hair. Such studies are intended to help solve crimes, but clinicians at fertility clinics could easily adapt the strategies for PGD. Based on ongoing research, Manfred thinks he and other scientists will soon be able to confidently identify skin color by looking at someone’s genes as well. In the more distant future, he adds, researchers will probably learn enough to deduce the texture of a person’s hair, the shape of his or her face, and the person’s height.

Today, genetic analysis can also reveal the likelihood of various quirks of human biology that some people find fascinating and others might consider trivial. Take, for example, the probability that someone will experience “Asian glow.” The ALDH2 gene codes for an enzyme named aldehyde dehydrogenase that converts a toxic byproduct of alcohol metabolism into a benign acid. People with only one or no working copies of the gene feel nauseated and flush red when they drink alcohol. Around 50 percent of East Asians have underactive aldehyde dehydrogenases. Earwax consistency is also relatively easy to predict with a genetic test because it is controlled by a single gene: one version of the gene produces sticky amber ear wax; the other makes dry, gray, flaky earwax. A single gene also largely determines one’s ability to taste certain bitter compounds commonly found in Brussels sprouts, coffee, cabbage and other foods.

These examples of relatively straightforward relationships between genes and traits are exceptions to the daunting complexity of human genetics. Most characteristics of the human body—even seemingly simple ones like earlobe attachment, dimples and hair whorls—have stumped researchers with far more convoluted genetics than they anticipated. That’s why confidently reporting eye and hair color based on DNA is a relatively recent accomplishment. In high school, you may have learned that eye color is a simple Mendelian trait in which one or two dominant copies of a gene produces brown eyes whereas two recessive versions result in blue eyes. In fact, more than a dozen genes likely interact to determine the hue of your iris. So, when it comes to something as multi-faceted as intelligence or personality, we may never have a particularly useful predictive genetic test. For the foreseeable future, then, any possibility of designer babies may be limited to rather basic—though, to many parents, important—human features: essentially, the shape and color of a child’s face and body.


And finally:

“Unfettered development of PGD applications is providing parents and fertility specialists an increasing and unprecedented level of control over the genetic make-up of their children,” wrote Tania Simoncelli, Assistant Director for Forensic Sciences within the White House Office of Science and Technology Policy, in 2003. “Indeed, if ever there was a case for a ‘slippery slope,’ this is it. Advances in PGD, together with cloning and genetic engineering, are tending towards a new era of eugenics. Unlike the state-sponsored eugenics of the Nazi era, this new eugenics is an individual, market-based eugenics, where children are increasingly regarded as made-to order consumer products.”
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Old 02-03-2014, 09:52 AM   #325
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Re: All things Science related. λν = c

and, in response, I say:

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Old 02-04-2014, 09:26 PM   #326
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Re: All things Science related. λν = c

Creationism Vs. Evolution: The Debate Is Live Tonight : The Two-Way : NPR


Science vs Creationism


Bill Nye vs Kent Ham


This isn't to spark a debate on the two, just thought it's something you all to enjoy. Take any creationism/science debate over to the picture thread. Thanks.
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Old 02-06-2014, 12:45 PM   #327
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Re: All things Science related. λν = c

"It was just amazing," said Dennis Aabo Sorensen of Aalborg, Denmark, who lost his left hand in a fireworks accident and volunteered to pilot-test the bulky prototype. "It was the closest I have had to feeling like a normal hand."

Step to artificial hand that feels what you touch :: WRAL.com

Science! F*** yeah!
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Old 02-19-2014, 09:41 PM   #328
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Re: All things Science related. λν = c

Yeah, I know I am, but what are you?

Trolls just want to have fun

In two online studies (total N = 1215), respondents completed personality inventories and a survey of their Internet commenting styles. Overall, strong positive associations emerged among online commenting frequency, trolling enjoyment, and troll identity, pointing to a common construct underlying the measures. Both studies revealed similar patterns of relations between trolling and the Dark Tetrad of personality: trolling correlated positively with sadism, psychopathy, and Machiavellianism, using both enjoyment ratings and identity scores. Of all personality measures, sadism showed the most robust associations with trolling and, importantly, the relationship was specific to trolling behavior. Enjoyment of other online activities, such as chatting and debating, was unrelated to sadism. Thus cyber-trolling appears to be an Internet manifestation of everyday sadism.
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Old 02-20-2014, 11:01 AM   #329
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Re: All things Science related. λν = c

^ Yeah no surprises there.
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Old 02-24-2014, 06:03 PM   #330
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Re: All things Science related. λν = c

Does physics tell us that there is a soul and an afterlife?

Scientists Claim That Quantum Theory Proves Consciousness Moves To Another Universe At Death | Spirit Science and Metaphysics
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