[FRIAM] looking for a word
Steven A Smith
sasmyth at swcp.com
Sun Aug 19 11:10:45 EDT 2018
Roger -
I think you made it up well, and it does apply. I was surprised the
first time I discovered that the dendro of neural "branching" derived
from tree-structures.
I'm still puzzling over whether Glen has a deeper or more subtle
structure than the "mere"interpenetrating branching structures implied
say by capillaries, where the in/out flow is exchanged. I am sensing
that there is something "special" about the interface between
hierarchical flows and diffusion systems? The veins/arteries
deliver/remove blood but there is another type of exchange that goes on
in between which is more than diffusion which sort of implies homogenous
structure?
- Steve
On 8/18/18 11:15 PM, Roger Critchlow wrote:
> I hadn't thought of trees explicitly, I was working the branching
> geometries of neural dendrites and crystals. But trees are a fine
> example as well, and the exemplar of the class of all tree
> structures. / /I thought the branchedness of the blood flow into and
> out of the liver was the whole point of Glen's question. Dendrometry
> in the abstract would be the study of branching structures to find
> where the branchedness is essential to the phenomena under study. I
> thought I was making it up, maybe next time.
>
> -- rec --
>
>
> On Sat, Aug 18, 2018 at 11:28 AM Steven A Smith <sasmyth at swcp.com
> <mailto:sasmyth at swcp.com>> wrote:
>
> Roger -
>
> Interesting to introduce Dendrometry (tree growth) as _yet
> another_ metaphorical target domain beyond the liquid flow,
> erosion/sedimentation of rivers.
>
> Is there something in tree (plants in general?) growth that is
> specifically apt for this purpose? Or were you perhaps using
> Dendrometr(i)y in a more creative sense? Referencing neural
> growth/function/topology? Dendodendritic and Axodendritic
> synapses might be relevant?
>
> Trees represent a more "intentional" transport system it would
> seem than riverine systems, though if one includes the organic
> aspects such as the bosque/etc. maybe not.
>
> It doesn't seem (too?) unreasonable to imagine that the Liver (a
> broad-purpose chemical synthesis factory?) has some
> useful/interesting/relevant analogs in trees/plants? While a
> tree is nominally 3 dimensional, it is also nearly 1-dimensional
> in the sense that the cross-section of the trunk(s), branches,
> twigs, twiglets, etc are very similar and within them, they are
> radially symmetric.
>
> I am wondering if "braided" branch/root systems like Banyan Vines
> might offer some insight?
>
> This is all probably too far afield for Glen's original question
> but I can't help but wander a bit on this one?
>
> - Steve
>
>
>
> On 8/18/18 4:42 AM, Roger Critchlow wrote:
>> Ah, the dendrometriy of the software must agree with those of the
>> organ.
>>
>> Speaking of categorical imperatives, anyone trying to follow John
>> Baez' online course in Applied Category Theory?
>> https://johncarlosbaez.wordpress.com/2018/03/26/seven-sketches-in-compositionality/
>>
>> -- rec --
>>
>> On Sat, Aug 18, 2018 at 6:31 AM Stephen Guerin
>> <redfishgroupllc at gmail.com <mailto:redfishgroupllc at gmail.com>> wrote:
>>
>> Also internal vertex/node or branch vertex/node
>>
>> On Sat, Aug 18, 2018, 12:29 PM Stephen Guerin
>> <redfishgroupllc at gmail.com
>> <mailto:redfishgroupllc at gmail.com>> wrote:
>>
>> Conflux is the the place where two rivers join. More
>> generally in a directed acyclic graph I would say
>> junction node or use the negative non-leaf nodes
>>
>> On Sat, Aug 18, 2018, 12:09 PM Roger Critchlow
>> <rec at elf.org <mailto:rec at elf.org>> wrote:
>>
>> I was thinking dendrite -- which refers to branching
>> structures in crystals as well as neurons -- this
>> dawn, the proper portmanteau would then be dendrectic
>> or dendrexus.
>>
>> -- rec --
>>
>>
>> On Sat, Aug 18, 2018 at 3:06 AM Jochen Fromm
>> <jofr at cas-group.net <mailto:jofr at cas-group.net>> wrote:
>>
>> They say Germans have a word for everything
>> because we can chain words together like pearls
>> on a string. In German I would say
>> "Netzwerkverzweigung"
>> (network-branching/bifurcation) or
>> "Netzwerkverdichtung"
>> (network-consolidation/concentration). In one
>> case the density decreases, in the other case it
>> decreases. Something like that, but it is not a
>> perfect fit.
>>
>> - Jochen
>>
>>
>> -------- Original message --------
>> From: uǝlƃ ☣ <gepropella at gmail.com
>> <mailto:gepropella at gmail.com>>
>> Date: 8/17/18 19:47 (GMT+01:00)
>> To: FriAM <friam at redfish.com
>> <mailto:friam at redfish.com>>
>> Subject: [FRIAM] looking for a word
>>
>> I need a word (or short phrase) to refer to the
>> portion of a network where the edges converge or
>> diverge (more than other parts of the network.
>> Examples might be a river delta or the branching
>> (debranching?) of blood vessels or lungs.
>> "Plexus" or "knot" don't work because they could
>> ambiguously refer to something like a tapestry or
>> ... well, a knot, where each thread remains
>> separate, but winds around other threads.
>> Something close to "canalization" seems
>> appropriate. But I don't want to imply the
>> generation (or dissolution) of the thing. E.g.
>> [arter|ang]iogenesis are not the type of words
>> I'm looking for.
>>
>> There's got to be a good word for such, perhaps
>> from graph theory or "network theory". Any help
>> will be rewarded by an IOU for a pint of beer. 8^)
>>
>> --
>> ☣ uǝlƃ
>>
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