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User: wherrera

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  1. In other words... on Belief In Evolution Doesn't Measure Science Literacy · · Score: 1

    One's understanding of science and theory formation in general is independent of whether a theory (even a true one) is believed. Only ideologues (see warming denial, global) would need to think otherwise.

  2. Re:Biodegradable? on Biodegradable Fibers As Strong As Steel Made From Wood Cellulose · · Score: 1

    The first rain storm should do it.

  3. DARPA has something that would work. on Ask Slashdot: Communication With Locked-in Syndrome Patient? · · Score: 1

    DARPA has a small implantable chip that will do what you need it to do, assuming the patient is truly fully awake. They have monkeys working a robotic arm with brain signals alone.

  4. Check the slight angle change just after the roll on Fruit Flies, Fighter Jets Use Similar Evasive Tactics When Attacked · · Score: 4, Informative

    There is a variable angle change just after the initial turn away from the threat that allows the fly to be unpredictable. Otherwise the predator can predict the fly will evade directly away and anticipate where the fly will be. Very clever.

  5. reductum ad absurdum... on How Cochlear Implants Are Being Blamed For Killing Deaf Culture · · Score: 2

    ...that all cultures are equally to be valued. Otherwise, why not create more varieties of people with partial physical deficits, so as to have more such cultures?

  6. Correlation does not imply causation. on Study: Happiness Improves Developers' Problem Solving Skills · · Score: 1

    See the semi-obligatory XKCD here.

  7. Sigh. Yet another fMRi study with poor controls. on The Neuroscience of Computer Programming · · Score: 1

    The control groups should have been two other reading selections designed to bracket programming code reading: for example, reading mathematics, such as algebraic proofs, versus reading in an unfamiliar non-math vocabulary like a dense legal contract. It's possible that all would have looked similar, or that two but not three would have been similar, or all different. We just don't know.

    And don't let me even get started on the fact that most fMRI studies use far too few subjects and then use absurd values for N like thousands of MRI mapped vertex points in a single subject to reach "significance" (a technique which would be considered a statistical cheat in any other field).

  8. Obligate fish story... on It's Not Memory Loss - Older Minds May Just Be Fuller of Information · · Score: 2

    A story is told about ichthyologist David Scott Jordan. Jordan and a colleague were walking across campus one day when a student asked Dr. Jordan a question, which, upon answering, Jordan asked the student's name. Jordan's colleague asked him why he didn't remember his student's names. Jordan replied, "Every time I remember the name of a student, I forget the name of a fish!"

  9. google this phrase: on Open Source Beehives Designed To Help Save Honeybee Colonies · · Score: 1

    "monsanto treats seeds with systemic insecticide"

  10. OK, here is some math. on Tesla Fires and Firestorms: Let's Breathe and Review Some Car Fire Math · · Score: 5, Informative

    According to the US Bureau of Transportation,there are over 250 million cars on the road in the US. There are 150,000 fires in those vehicles a year __according to the OP__.

    There are 20,000 Tesla cars, with 3 fires.

    Relative risk = ( 3 / 20000 ) / ( 150000 / 250000000 ) = 0.00015 / 0.0006 = 0.25.

    Get a Tesla, so as to avoid vehicle fires. Maybe? Depends on whether the reported stats are correct.

  11. Out-of-body is not near-death on Synchronized Virtual Reality Heartbeat Triggers Out-of-Body Experiences · · Score: 2

    This news item and the gizmag.com link both confuse the study's method of tricking the body into being confused about where the body is and the near-death experience of being outside the body completely.

  12. Simulating completely or partially? on Why We Should Build a Supercomputer Replica of the Human Brain · · Score: 3, Insightful

    What exactly are "the functions of all 86 billion neurons"? I sense massive oversimplification here. Neurons have lots and lots of functions we have no idea how to simulate exactly, such as all the details of the thousands of networked internal metabolic mechanisms of any large mammalian cell, which most neural network simulations simply neglect.

    Furthermore, we have plenty of evidence that the non-neuronal components of the brain (glia and oligodendroglia) massively influence brain functioning, and may be required for adequate cognition. Furthermore we have no way of knowing if a brain-in-a-vat will work the way a brain in the body, with all its connections, works. The above issues are just a start to the limitations of the scheme.

  13. Have you ever hiked around bison? Thought not. on "Lazarus Project" Clones Extinct Frog · · Score: 3, Interesting

    Herding bison? Bison are not endangered in at least past of the American West. Bison are not afraid of people or mountain cyclists, and are quite willing to trample and gore them if annoyed, and are annoyed fairly easily. They can run 40 mph for over a mile, can jump 5 vertical feet, and can walk right through and over most ordinary fences.

    I very much doubt the older DNA has more placid traits.

  14. It is usually what the patient puts in and regrets on Most Doctors Don't Think Patients Need Full Access To Med Records · · Score: 1

    In my experience, drug use information and review of systems symptoms are the things patients most often want to remove later, for legal and insurance reasons, and it is those bits that (in our system and many others) they put in directly themselves. Curious.

  15. Hackers check in.... on The Pirate Bay Claims It Is Now Hosting From North Korea · · Score: 1

    but they don't check out.

    Ask the Japanese and Americans who provided translation assistance in past decades.

  16. Re:Can't use - don't have optic rectum on Amazing Video of a Brain Perceiving the External World · · Score: 1

    Kidding right? That's Tectum, and in humans it is a structure in the midbrain (the human midbrain, part of the brainstem, is shaped a lot like the zebrafish organ in the video, by the way) that processes vision in a mostly pre-conscious way. So,in the zebrafish, we probably have to say that the tectum signaling in that video may not be the fish thinking, in the same way we do, at least. Google for blindsight.

  17. Make sure any throwback is fully immunized on Scientist Seeks 'Adventurous Human Woman' For Neanderthal Baby · · Score: 2

    There's been a lot of mutual adaptation of humans to their pathogens the last 10k years that Neandethals would lack. Might mean they'd die easily of common benign infections, of less likely not get them at all.

  18. Set time zone.... on Nintendo Puts a Bedtime On Wii U Content In Europe · · Score: 1

    Need I say more?

  19. Re:About time on No More "Asperger's Syndrome" · · Score: 3

    Unfortunately, decreasing the number of people said to have a condition is a good way to decrease its funding chances in the government subsidies to researchers.

    That's bad news for those who actually have the condition--lessening the chances for their eventual cure.

    The move itself is akin to splitting off persons who have compulsive tendency in their personalities from those diagnose-able with Obsessive-Compulsive Disorder, and as such seems to be a reasonable change in categorization.

  20. it's been done already. on Open Compute Wants To Make Biodegradable Servers · · Score: 1

    For the desktop, it's been done already HERE.

  21. Amphotericin B liposomal on States Face Huge Task In Tracking Meningitis-Tainted Drugs · · Score: 2

    Ambisome is a brand of Amphotericin B, which has been around as a generic since the 1960's, and, like Fungisome, is in a liposomal formulation to improve its IV tolerability. Most doctors know the generics well, and generally do not keep track of old generics by their current brand names.

  22. Don't let the TSA see this on How Hair Can be Used To Track Where You've Been · · Score: 1

    Next up in the news: TSA taking a lock of hair from random airline passengers...

  23. this too is profiling... on Statisticians Uncover the Mathematics of a Serial Killer · · Score: 3

    Sorry, but, hand-waving at neurons to justify the power law they found is none the less also....

    "relying on the junk science of behavioral profiling"

  24. Re:Interesting on Generating Text From Functional Brain Images · · Score: 1

    We commonly communicate thoughts, at least on this forum, in words of language. So thinking about things posted in this forum is mostly verbal thinking. If we were instead for example listening to an instrumental number while dancing, we might be doing more in the way of nonverbal thinking.

    Verbal thinking uses a lot of the left side of the upper brain and might mostly utilize language function. Nonverbal thinking is not mostly a function of language.

  25. check this online math text first... on Ask Slashdot: Math Curriculum To Understand General Relativity? · · Score: 1

    Read this pdf online, chapter by chapter, and do the exercises. It should take weeks:

    http://virtualmathmuseum.org/Surface/a/bk/curves_surfaces_palais.pdf

    If you understand the pdf well, you can probably then take on a graduate level general relativity text directly. If not, you should refresh your trigonometry and calculus first, I suppose.