Thursday, March 20, 2014
Thursday, March 13, 2014
How can we bring such an interface to the desktop? My first suggestion would be a modification of the file/save dialog in most applications. This is usually tied into the interface toolkit (e.g., GTK) in a way that it should be possible to modify it directly and have that modification spread to all applications that use it. There are, however, other ways to create and save files, such as through the command line or through applications that do not use the standard interface toolkit. One other suggestion is to create a virtual file system layer that presents a secondary prompt for tagging on file creation. This, of course, has its own problems in that not every file created in the user's name needs tagging (e.g., applications frequently create cache and config files). We can get around that limitation by demanding that the user selects directories to be managed. There are still no guarantees that a third-party program won't attempt creation of files in this directory, but adding to the prompt an option to never tag a certain kind of file may solve this problem.
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Wednesday, March 12, 2014
A useful site!
I've found this wonderful site (and bookmarked it this time!) to help me out: HowJSay is a site which has a list of words spoken by (apparently) 2 or 3 British men. I've found a few pronunciations that have differing pronunciations in America from Britain, which the recordings speak also.
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Thursday, March 6, 2014
Monday, March 3, 2014
LTP and learning
That's hard. Anyway. How could we test if increasing the surface area of a
terminal bouton results in increasing post-synaptic response? I guess first
it's necessary to affirm that it isn't a foregone conclusion that this
mechanism already operates. According to Dr P, the increase in the area of
a terminal bouton results in increase in the number of docking sites (mediated
by the presence of precursors for the creation of synaptotagimin and SNARE
molecules I suppose). We also know that under low-Ca++ concentrations, the
primary means of exocytosis into the synapse is through complete fusion and
collapse of the vesicles. However, the reason that under these conditions
(which are typical for at least some of the neurons) the result isn't to have
the boutons grow unbounded is that the membranes are also recycled into new
vesicles through the process of endocytosis
[https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2343565/ and others].
So anyway, first stop endocytosis at the axon terminal without hindering the
process of exocytosis or creation of new docking sites, or anything really
having to do with the movement of vesicles (if possible...maybe some virus?).
Second, monitor the extracellular concentration of neurotransmitter following
either the introduction of Ca++ into the terminal (this might be achieved also
with an AP, but that may have additional consequences not considered).
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Thursday, February 27, 2014
Sometimes I'm afraid that we forget what it was like to not organize things into classes, subclasses, types, and objects and that we got along fine like that. We need to be able to make use of these informal schemata which make use of other kinds of relationships between data. Although things might be reducible to labeled, directed graphs, we should definitely not restrict creation to that level.
We need a means of expression for the otherwise inexpressible. Those things which are only the immediate, fleeting concordance of sensory information and gestaltic, nameless unity; those things I want to give presence and meaning. These are things which we give names and construe in our own lives, but they are not the things themselves. The feelings of eyes all around looking on in distrust, hate, or condescension cannot be understood by the word "racism". A need to be a man while living in a woman's body is not translatable into any language that we can all speak. The well-fed business man does not comprehend the poor man's escape in heroin addiction.
Concepts like these matter. To understand them is to know the motivations for action and to walk in the other person's shoes. Compassion through shared experience is as old as story-telling, but the forces which enact it are too sparse and inconstant. Failure to understand the other man weakens us. It turns us to hate, confusion, secrecy, fear. Men learned to conquer parts of this in prehistory so that we could live in villages and not kill one another over minor faults. I think we need to learn again how to live with humanity on a global scale.
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