dtpolet @dtpolet@qoto.org

As a #control #systems #engineer who works in #robotics, I sometimes see people blindly use a #PID controller design (without justification) and then attempt to tune it by trial-and-error. So, I made this little tutorial for my students: https://github.com/botprof/PID-101. Maybe others will find it useful too? There are lots of ways to tackle controller design, but I like this approach for cases when PID is the right choice.

LOOOOOOOK!! That asteroid grain I took to the UK (the one where I nearly couldn't board the plane due to having the wrong seat type reserved for the Hayabusa2 model)?

It's now on display at the London Science Museum!

I totally brought it there. Me! Yay!

https://blog.sciencemuseum.org.uk/4-6-billion-year-old-asteroid-sample-unveiled-at-the-science-museum/

My favorite paper that I've read this year — a look at how confusion between inferential uncertainty and outcome variability creates all sorts of problems — is now out in PNAS.

Here's the paper: https://www.pnas.org/doi/abs/10.1073/pnas.2302491120

Here's the thread I wrote about the preprint last April: https://fediscience.org/@ct_bergstrom/110267907188002904

I just read the best paper I've seen yet this year, Sam Zhang's work on confusion between inferential uncertainty and outcome variability.

In the context of a trial or experiment, inferential uncertainty refers to our statistical confidence that two groups are different. Outcome variability refers to how much variation there is in individual outcomes within a single group.

IMO confusion about this is ubiquitous in biomedical science.

Here's the paper: https://osf.io/preprints/socarxiv/5tcgs/

In their #JEB100 Review, Ijspeert & Daley discuss how comparative animal studies and neuromechanical modeling have revealed diversity in the integration of feedback and feedforward control, related to body size, mechanical stability, time to locomotor maturity and movement speed

#biomechanics #biology #zoology #locomotion

https://journals.biologists.com/jeb/article/226/15/jeb245784/325856

Now published! Brazilian PhD student Mauro Lacerda led our efforts to reconstruct how early #theropod #dinosaur pelvic appendages evolved, focusing on megalosauroids. Big open access paper: https://royalsocietypublishing.org/doi/10.1098/rsos.230481

Hi all! I'm a neuroscience postdoc studying information seeking and curiosity *in mice* in Richard Axel's lab at Columbia. I'll be on the academic job market this fall(!!!). Excited to be here.

Uplifting message from the car park machine today

To celebrate of the work of the scientists who publish in the Company of Biologists journals, we are currently planting a tree in the Forest of Biologists for each paper that we publish. We recently celebrated Dowd & Somero's JEB paper https://journals.biologists.com/jeb/article/226/15/jeb246033/324982
by planting a small-leaved lime (Tilia cordata) https://forest.biologists.com/landscape/?doi=10.1242%2Fjeb.246033&tgl=1 to at our forest at the Woodland Trust's Young People's forest https://www.woodlandtrust.org.uk/visiting-woods/woods/young-peoples-forest-at-mead/

See the virtual version of the forest https://forest.biologists.com/landscape/
#zoology

My first release of #XROMM toolkit for Blender (#b3d) is now out, v0.1: https://github.com/pfalkingham/XROMM_BlenderTools

Not everything implemented yet, but you can:
import cameras + image planes
Apply rigid body transforms to objects
Create axes w/ locators
Calculate relative motion between objects.

Youtube video run through here: https://youtu.be/zRH4XBChrgA