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BLUEBLOCR
Social climber
joshua tree
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May 26, 2017 - 06:03pm PT
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^^^ I'll bet there's a lotta low fives, right?
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Ward Trotter
Trad climber
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May 27, 2017 - 01:33pm PT
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To remain living the human body must have electrical activity.
What are the main actors: sunlight and water.
Sunlight and water create an "exclusion zone" (EZ) within cells. Cells are thereby polarized and become like flashlight batteries, with positive at one end and negative at the other end of the EZ.
This is one of the reasons why dehydration is not a good idea. But long before dehydration manifests its most revealing markers, a person can have sub-optimal amounts of water for the purpose of setting up viable EZs , just as not getting enough sun exposure will do the same.
Both sunlight and water are mandatory for the body electric. A person with optimal amounts of both are said to have " good redox potential"
What a disappointment to pick up a flashlight, turn it on, only to have a weak light as a result.
Make sure your light is strong when someone comes along and turns you on.
A profusion of yellow monkey flowers encountered on yesterday's hike:
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MH2
Boulder climber
Andy Cairns
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May 27, 2017 - 07:25pm PT
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Do animals have a sense of humor?
How well do we know animals? How well do we know ourselves?
People who have lived with African Gray parrots sometimes see what they think of as a sense of humor in the birds. Other people who know the bird well are more cautious:
As for sense of humor, I don't think birds find things "funny" so much as "fun". That slight difference is important here; parrots like to play games, and understand "surprise", and will "surprise" their owners on purpose ("peek-a-boo", for instance) but I think playing a joke on someone is not in their repertoire. Doesn't mean they're not smart, just that "jokes" aren't something which makes sense to them. They do things for fun, not so much to "be funny".
Jae Starr
found at:
http://www.quora.com/Do-parrots-have-a-sense-of-humor
A related question that occurred to me was, "Are animals ticklish?"
This is funny:
http://www.bbc.com/news/science-environment-15880045
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jgill
Boulder climber
The high prairie of southern Colorado
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May 27, 2017 - 09:51pm PT
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From the vector field in the complex plane F(z)=(yCosy+x)+i(xSinx+y) contours arise as streamlines, and you can do a topo map on the difference between z(0) and z(1). But if you form the integral of each contour z(t) over [0,1] you get a different picture.
Thought an image would wake people up.
The little guy in the center who's waving stepped out of a UFO.
;>)
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eeyonkee
Trad climber
Golden, CO
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May 28, 2017 - 07:25pm PT
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At dinner with my wife tonight, after my first Margarita, I was sure that I had THE killer answer. After my second, I was back to being not so sure. As you were...
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MH2
Boulder climber
Andy Cairns
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May 28, 2017 - 08:08pm PT
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At dinner with my wife tonight, after my first Margarita, I was sure that I had THE killer answer. After my second, I was back to being not so sure. As you were...
Why bring your wife into this? What is a Margarita? What was the killer question?
Quite an image, John Gill. It looks symmetrical at first but on closer inspection it is very hard to wrap the mind around it. Except for the little guy. Pretty sure I've seen him before.
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Mark Force
Trad climber
Ashland, Oregon
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May 28, 2017 - 08:25pm PT
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To remain living the human body must have electrical activity.
All living processes are binary expressions of the polar tension and transfer of charge - oxidation/reduction, cell membrane transport, replication, enzyme action, parasympathetic/sympathetic, anabolic/catabolic, neuron depolarization/repolarization...
...yin and yang.
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MikeL
Social climber
Southern Arizona
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May 28, 2017 - 09:18pm PT
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^^^^^^^^
Well, that's a way of talking about things.
One should get to ask: what is a heart? Why are we talking about it?
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Ward Trotter
Trad climber
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May 30, 2017 - 09:42am PT
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All living processes are binary expressions of the polar tension and transfer of charge
You might be interested in this recently published study in which the survival rate of tadpoles infected with E. Coli were increased when non-neural cells were depolarized by researchers.
https://www.sciencedaily.com/releases/2017/05/170526084555.htm
This can be added as an important addendum to the heart chakra posted above:
The EM field of the heart
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Ward Trotter
Trad climber
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By conservative estimates I can effectively kill this thread forever by simply making a mere 2 more additional posts.
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MH2
Boulder climber
Andy Cairns
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There are sidelines?
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MH2
Boulder climber
Andy Cairns
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Two monks were watching a flag flapping in the wind.
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Ward Trotter
Trad climber
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Since we're now back on page 1 I feel a strange and awesome nakedness.
Avert your eyes. Your cold stare.
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MikeL
Social climber
Southern Arizona
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:-D
Why, I think you just winked at us, MH2.
That was a funny reference.
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MH2
Boulder climber
Andy Cairns
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I live and learn.
I learn how much I don't know.
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jgill
Boulder climber
The high prairie of southern Colorado
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A flag watched two monks moving incomprehensibly about.
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Ed Hartouni
Trad climber
Livermore, CA
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My mistress’ eyes are nothing like the sun;
Coral is far more red than her lips’ red;
If snow be white, why then her breasts are dun;
If hairs be wires, black wires grow on her head.
I have seen roses damasked, red and white,
But no such roses see I in her cheeks;
And in some perfumes is there more delight
Than in the breath that from my mistress reeks.
I love to hear her speak, yet well I know
That music hath a far more pleasing sound;
I grant I never saw a goddess go;
My mistress when she walks treads on the ground.
_ And yet, by heaven, I think my love as rare
_As any she belied with false compare.
and only 205 neurons to recognize her, too
The Code for Facial Identity in the Primate Brain
Le Chang, Doris Y. Tsao
Summary
Primates recognize complex objects such as faces with remarkable speed and reliability. Here, we reveal the brain’s code for facial identity. Experiments in macaques demonstrate an extraordinarily simple transformation between faces and responses of cells in face patches. By formatting faces as points in a high-dimensional linear space, we discovered that each face cell’s firing rate is proportional to the projection of an incoming face stimulus onto a single axis in this space, allowing a face cell ensemble to encode the location of any face in the space. Using this code, we could precisely decode faces from neural population responses and predict neural firing rates to faces. Furthermore, this code disavows the long-standing assumption that face cells encode specific facial identities, confirmed by engineering faces with drastically different appearance that elicited identical responses in single face cells. Our work suggests that other objects could be encoded by analogous metric coordinate systems.
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In this paper, we reveal the code for realistic facial identity in the primate brain. We show that it is possible to decode any human face using just ∼200 face cells from patches ML/MF and AM [lateral (ML)/middle fundus (MF) and anterior medial (AM)], once faces are defined in the proper space (as vectors in a “shape-appearance” space). Furthermore, we reveal the mechanism underlying this remarkably efficient code for facial identity: linear projection of incoming face vectors onto a specific axis (the “STA” [“spike-triggered average” ] axis). We find that in planes orthogonal to this preferred axis, cells show completely flat tuning. Surprisingly, even cells that had previously been thought to respond extremely sparsely turned out to have this property; by finding the null plane for these cells, we were able to engineer a large set of faces that all triggered strong responses in these putative “sparse” cells. This is surprising because it means there are no detectors for identities of specific individuals in the face patch system—even though intuitively one might expect this, especially after observing a sparse AM cell (Movie S2). Using the axis code, we could predict firing rates of face cells in response to arbitrary faces close to their noise ceiling. Advantages of axis coding include efficiency, robustness, flexibility, and ease of readout. Our results demonstrate that at least one subdivision of IT [inferotemporal] cortex can be explained by an explicit, simple model, and “black box” explanations are unnecessary.
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MikeL
Social climber
Southern Arizona
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She’s probably got you there, Ed. Recognition is one thing, but all of the interpretations are another. The recognition could be not much of anything. Just something vaguely familiar.
On the other hand, the fact that you are now quote poetry is something to be noted—you, being who you seem to be. I like this in you.
I suppose you’ll have me studying particle physics now.
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Ward Trotter
Trad climber
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On the other hand, the fact that you are now quote poetry is something to be noted—you, being who you seem to be. I like this in you.
I suppose you’ll have me studying particle physics now.
Uh...
This sounds like another dog could be peeing on the edge of where you perceive your territory to be, MikeL?
Recognition is one thing, but all of the interpretations are another
And as to the matter of "interpretations" :Is the mere fact that an interpretation has taken place always cause to regard the entire necessary process of interpreting as somehow suspect?
And if this is true, why is it suspect? Why are interpretations suspect?
I can understand that perhaps the many initial interpretations of a phenomenon are naturally incorrect, are dead ends in fact. But then again it is highly likely that at least one of those interpretations could have hit pay dirt. Time and process are always the indispensable arbiters in these matters.
Therefore, it is unwise to group all interpretations as ipso facto invalid or suspect merely because they are interpretations. If they are invalid then it is because they are ultimately proven incorrect, and not because they function as provisional theories until that time.
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One of my favorite local hikes is Evey Canyon through the Wildlife Preserve up to the summit of Potato Mountain. Upon arriving at the summit this last Weds. I discovered what could only be determined, by myself, as a work of art, in a state of transitory beauty, performed by many hikers, unknown to one another, and, as I later learned, a longstanding Potato Mountain tradition.
Moreover, it is highly likely this collective installation no longer exists.
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MH2
Boulder climber
Andy Cairns
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That was good to see, Ed. Thanks.
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