Daily Archives: May 24, 2017

Bilateral nuclear symmetry

Ultimate order, the cell

These images (taken from salivary polytene nuclei electron micrographs from a publication  by Carla Ritagliati, et al, show me that there is symmetry in the nucleus regardless of what stage of either replication, growth, apoptosis, it is in. And while their publication has to do with totally different topics, i was struck by the duplicate nuclear domains within their images. Because electron microscopy is 2D by inspection of single micrographs of course, this might get translated into a radial symmetry so easily.  Would that I had the equipment and time and funding to figure some of this out. This is from their figure 7 just cut and cropped the images which were obviously bilaterally symmetrical.

I can — I can’t

Rants, Ultimate order, the cell

Where in the brain is the group of cells that tell me “I can” or “I can’t”?

How long before those cells send off the “I can” vs the “I can’t” signals?

What is a good way to maintain the “I can” attitude when sometimes it is impossible to to do what needs to be done until later

Everything we do impacts our brain — and in googling this i found an amazing (but I should have thought it existed) site,  THE HUMAN CONNECTOME, go to their “publications” tab and read some of the interesting abstracts.

I think in a quick reading of some links about brain and body dualism, i would have to accept that it is NOT dualistic at all, but a unit, ha ha, i would avoid labeling it as Unitarianism.

And a great quick video on what the human connectome is all about is HERE, awesome and really amazingly complex. and an elementary explanation of their process for building 3 dimensional maps of tiny portions of brain (mouse i think) is in this video...  I do have a question and that is how they get those slices to pass into a vacuum on a conveyor belt.. ha ha. I suspect some of the important steps have been left out.  Of course i love this concept because I am an electron microscopist…. and have wanted 3D techniques all my research life…. at this point 40 years past when I could have gotten into this, I am loving that it is being used.

Bottom line is that at some point, some lucky person is going to know exactly where in their brain the impetus for “closing, or I can’t” vs “opening, or I can” is wired into your heads.