Amelio Vazquez-Reina

We describe automated technologies to probe the structure of neural tissue at nanometer resolution and use them to generate a saturated reconstruction of a sub-volume of mouse neocortex in which all cellular objects (axons, dendrites, and glia) and many sub-cellular components (synapses, synaptic vesicles, spines, spine apparati, postsynaptic densities, and mitochondria) are rendered and itemized in a database. We explore these data to study physical properties of brain tissue.

Consider a text file with the following entries: aaa bbb ccc ddd eee fff ggg hhh iii Given a pattern (e.g. fff), I would like to grep the file to get in the output: RETURN: everything except (pattern-matching-lines U (B lines before) U (A lines after) For example, if B = 2 and A = 1, the output with pattern = fff should be: aaa bbb ccc hhh iii How can I do this with grep, or other command line tools? Note, when I try: grep -v 'fff'-A1 -B2 file.txt I don't get what I want.

The Wikipedia article about Jacknife estimation of the bias and variance of an estimator $\theta$ includes the following formulas: Variance of $\theta$: $ \operatorname {Var}(\theta )=\sigma ^{2}={\frac {n-1}{n}}\sum _{{i=1}}^{n}({\bar {\theta }}_{i}-{\bar {\theta }}_{{\mathrm {Jack}}})^{2}$ where ${\bar {\theta }}_{{Jack}}={\frac {1}{n}}\sum _{{i=1}}^{n}({\bar {\theta }}_{i})$ is the jacknife estimator.