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New Earth-like planet?

Don’t bet the farm but, from a href=”http://phys.org/news/2016-08-scientists-unveil-earth-like-planet.html” target=”another”>Phys.org: The exoplanet orbits a well-investigated star called Proxima Centauri, part of the Alpha Centauri star system, the magazine said, quoting anonymous sources. “The still nameless planet is believed to be Earth-like and orbits at a distance to Proxima Centauri that could allow it to have liquid water on its surface—an important requirement for the emergence of life,” said the magazine. “Never before have scientists discovered a second Earth that is so close by,” it said, adding that the European Southern Observatory (ESO) will announce the finding at the end of August. More. See also: “Behold, countless Earths sail the galaxies … that is, if you would only believe …” Follow UD Read More ›

Epigenetic regulation in prokaryotes different from eukaryotes

Here. From Genetics and Epigenetics: The evolution process includes genetic alterations which started with prokaryotes and now continues in humans. A distinct difference between prokaryotic chromosomes and eukaryotic chromosomes involves histones. As evolution progressed, genetic alterations accumulated and a mechanism for gene selection developed. It was as if nature was experimenting to optimally utilize the gene pool without changing individual gene sequences. This mechanism is called epigenetics, as it is above the genome. Curiously, the mechanism of epigenetic regulation in prokaryotes is strikingly different from that in eukaryotes, mainly higher eukaryotes, like mammals. In fact, epigenetics plays a huge role in the conserved process of embryogenesis and human development. Malfunction of epigenetic regulation results in many types of undesirable effects, Read More ›

AI still can’t master language

From Will Knight at Technology Review: Machines that truly understand language would be incredibly useful. But we don’t know how to build them. … SHRDLU was held up as a sign that the field of AI was making profound progress. But it was just an illusion. When Winograd tried to make the program’s block world larger, the rules required to account for the necessary words and grammatical complexity became unmanageable. Just a few years later, he had given up, and eventually he abandoned AI altogether to focus on other areas of research. “The limitations were a lot closer than it seemed at the time,” he says. More. Could part of the problem be that language is not just a signal Read More ›

Discover Mag: Psychology’s replication crisis

For more than 50 years, psychologists have worried about the robustness of research in their field. … Last year, psychologist Brian Nosek led a consortium of nearly 300 scientists who published the first attempt to estimate the reproducibility rate in psychology by redoing 98 recent studies. The scientists couldn’t reproduce the initial results about 60 percent … ” More So forget about it.

Does Bad Metaphysics Lead to Moribund Physics?

Yes, according to Rob Sheldon: Woit & Hossenfelder & Wolchover are saying something more profound than they realize. It is not simply, as Wolchover put it, “a diphoton hangover”, or as Hossenfelder put it, “we are completely lost”, nor even as Woit said in his 2013 essay, a “nightmare scenario” in which, “After centuries of great progress, moving towards ever deeper understanding of the universe we live in, we may be entering a new kind of era. Will intellectual progress become just a memory, with an important aspect of human civilization increasingly characterized by an unfamiliar and disturbing stasis?” For Peter, as well as Sabine and Natalie, “progress” is the birthright of humanity, and “stasis” the curse. But imagine for Read More ›

Study: Human brain not exceptional?

Every so often something exquisitely stupid turns up, something worth celebrating on that account: From ScienceDaily: A new scientific study puts the final nail in the coffin of a long-standing theory to explain human’s remarkable cognitive abilities: that human evolution involved the selective expansion of the brain’s prefrontal cortex. It does so by determining that the prefrontal region of the brain which orchestrates abstract thinking, complex planning and ecision making contains the same proportion of neurons and fills the same relative volume in non-human primates as it does in humans. “People need to drop the idea that the human brain is exceptional,” said Vanderbilt University neuroscientist Suzana Herculano-Houzel, who directed the study. “Our brain is basically a primate brain. Because Read More ›

How Progressive Gnosticism Leads to Liberal Fascism

Peter M. Burfeind writes: According to the various social theories—all claiming to be scientific—it is an ironclad law that to be human is to have all your thought and thinking inescapably determined by whatever structures you’re born in. A Cretan can’t stop being a Cretan any more than an apple can stop being pulled to the earth by gravity. At least that’s the pretense of the sociologist (who fantasizes he’s doing science, but that’s another story.) The only escape exists in something transcending the physical nature of the subject, something outside its earthy, physical nature. Thus, if you wished to escape your human-ness, you’d have to be supra- or trans-human. This was the exact position of the Gnostics. A Gnostic Read More ›

No new particles means what for physics?

From Quanta: In the past two years, some theoretical physicists have started to devise totally new natural explanations for the Higgs mass that avoid the fatalism of anthropic reasoning and do not rely on new particles showing up at the LHC. Last week at CERN, while their experimental colleagues elsewhere in the building busily crunched data in search of such particles, theorists held a workshop to discuss nascent ideas such as the relaxion hypothesis — which supposes that the Higgs mass, rather than being shaped by symmetry, was sculpted dynamically by the birth of the cosmos — and possible ways to test these ideas. Nathaniel Craig of the University of California, Santa Barbara, who works on an idea called “neutral Read More ›

“Nightmare” in particle physics?

From Columbia mathematician Peter Woit at Nott Even Wrong: The Nightmare Scenario Now back from a short vacation, and there seems to have been a lot happening on the debate over fundamental physics front. From the experimentalists, news that the Standard Model continues to resist falsification: More. See also: Physics to crack wide open? Of course, in this post-modern world, there’s an alternative to admitting we are completely lost—make up the missing data. Follow UD News at Twitter!

The Benefit of Arguments at UD

Probably one of the most daunting aspects of carrying on debates either about proper critical thinking, theism vs atheism, or intelligent design and its implications is the seeming implacable nature of those we debate here and elsewhere. It most often seems that no amount of logic, evidence or even reasonable discourse makes one iota of difference to our interlocutors; however, I think this is probably because most of those who will take the time to seek our position out and criticize it on its home turf are already fully committed against such positions, and are often emotionally entrenched. Not only has my time here at UD aided in my personal transition from atheist to theist, I’d like to let the Read More ›

Tool-making crows are just acting naturally

According to a report in New Scientist, the tool-making behavior of New Caledonian crows may be simply part of their natural repertoire. If this finding turns out to be true, it would cast doubt on claims that the birds are intelligent. A crow that astonished the world by bending a straight piece of wire was simply acting out behaviour in her species’ natural repertoire. Betty bent a straight piece of garden wire into a neat hook to lift a food-baited bucket from a vertical tube in a laboratory at the University of Oxford in 2002. At the time, it was known that New Caledonian crows manufacture tools from twigs in the wild, but it seemed highly unlikely that this involved Read More ›

Piltdown hoax forger was Charles Dawson?

From Jonathan Webb at BBC News: They conclude that the forged fossils were made by one man: the prime suspect and “discoverer” Charles Dawson. The human-like skull fragments and an ape-like jaw, complete with two teeth, shook the scientific world in 1912 but were exposed as a hoax in 1953. New tests show the bones came from two or three humans and one orangutan. The research, published in Royal Society Open Science, was a multi-disciplinary collaboration including palaeobiologists, historians, dental experts and ancient DNA specialists.More. Dawson ((1864-1916) See also: Who was responsible for forging Piltdown Man? Follow UD News at Twitter!

Methodological Naturalism and Its Creation Story

In the next video from the Alternatives to Methodological Naturalism (AM-Nat) conference, Arminius Mignea points out that when we force science to adhere to naturalism, it requires scientists to simply ascribe supernatural powers to ordinary matter. Remember, the AM-Nat biology conference is coming up in November. We already have several abstracts submitted and you should get registered now during our early bird special! More information is available at http://www.am-nat.org/

Aeon puts case squarely: Must science be testable?

From Massimo Pigliucci at Aeon: The broader question then is: are we on the verge of developing a whole new science, or is this going to be regarded by future historians as a temporary stalling of scientific progress? Alternatively, is it possible that fundamental physics is reaching an end not because we’ve figured out everything we wanted to figure out, but because we have come to the limits of what our brains and technologies can possibly do? These are serious questions that ought to be of interest not just to scientists and philosophers, but to the public at large (the very same public that funds research in fundamental physics, among other things). What is weird about the string wars and Read More ›