iiinova — where your digital self keeps evolving

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Anjiolina Nakaya @anjiolina.bsky.social · 04/10/2026

We keep treating AI like it has a brain like it thinks, feels, means things. And then we turn around and treat human brains like they're just systems to debug: fix your focus, optimize your productivity, patch your "inefficiencies." 😒

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No Starch Press @nostarchpress.bsky.social · 26/09/2026

A few pages for all the vacuum tube enthusiasts out there, courtesy of The Secret Life of Circuits.

The Secret Life of Circuits by Michał Zalewski, with a pop-art cover showing a woman holding a soldering iron, beside a photograph of three vacuum tubes. Text reads “Tube computers used as much electricity as a small town.” Additional text says “Now shipping from nostarch.com” and “Swipe for a look inside.”

Page 163 of The Secret Life of Circuits. A graph shows collector current in a PN2222 transistor rising sharply to approximately 70 milliamps near 1 volt, then increasing gradually as collector-emitter voltage rises. The text explains transistor saturation, parasitic capacitance, and variations including PNP transistors and phototransistors.

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Daniel Pelliccia @dan-pelliccia.bsky.social · 16/09/2026

📣 If you want hear my ramblings on pre-processing techniques for #spectroscopy, check out my #webinar signal smoothing, applicable to spectra, time series and easily generalised for image denoising. Free registration! #MachineLearning #Python #SignalProcessing events.humanitix.com/nirpy-webina...

events.humanitix.com

Nirpy Webinar

Webinar by Daniel Pelliccia - Tikhonov regularization for spectra smoothing and baseline subtraction

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Dr Alice Clement @draliceclement.bsky.social · 11/09/2026

For those in Adelaide who work with digital 3D data, I'm organising an informal workshop for us to share insights on our methods, challenges and ideas at the "Flinders University 3D Data Software, Analysis and Visualisation Workshop" on Sep 24th Register here: events.humanitix.com/flinders-uni...

events.humanitix.com

Flinders University 3D Data Software, Analysis and Visualisation Workshop

Bringing together biomedical and mechanical engineering, archaeology and palaeontology to discuss approaches to capturing, handling and publishing 3D data.

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Daniel Pelliccia @dan-pelliccia.bsky.social · 03/09/2026

If you want hear me ramble on pre-processing techniques for #spectroscopy check out my *free* webinar "Tikhonov regularization for spectra smoothing and baseline subtraction" events.humanitix.com/nirpy-webina... #MachineLearning #Chemometrics #Python

events.humanitix.com

Nirpy Webinar

Webinar by Daniel Pelliccia - Tikhonov regularization for spectra smoothing and baseline subtraction

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Daniel Pelliccia @dan-pelliccia.bsky.social · 03/09/2026

events.humanitix.com

Nirpy Webinar

Webinar by Daniel Pelliccia - Tikhonov regularization for spectra smoothing and baseline subtraction

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Daniel Pelliccia @dan-pelliccia.bsky.social · 03/09/2026

I have two sessions scheduled on Sept 21st and Sept 22nd. The first session is generally best for the Americas. The second session's time is more convenient for EMEA and APAC

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Daniel Pelliccia @dan-pelliccia.bsky.social · 28/08/2026

“One person’s trash is another person’s treasure” This beautiful paper, recently published published in #OPG_Optica, inspired me to write a short thread on novel x-ray imaging techniques. ⚛️🧪 Disclaimer: I was not involved in this research, but published together with two of the co-authors. 1/N

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Daniel Pelliccia @dan-pelliccia.bsky.social · 28/08/2026

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Daniel Pelliccia @dan-pelliccia.bsky.social · 28/08/2026

This paper shows how a clever application of these physical concepts, enable doubling the sample throughput, or accessing clear images of partially obstructed specimens. 🧪 #Physics #ComputationalImaging #XrayImaging 8/8 -end

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Daniel Pelliccia @dan-pelliccia.bsky.social · 28/08/2026

In fact, modern PCXI methods enable true multi-modal imaging, whereby attenuation, phase-contrast and small-angle scattering maps from samples can be reconstructed from the same set of images. 7/N

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Daniel Pelliccia @dan-pelliccia.bsky.social · 28/08/2026

This is the beautiful result of this paper. You develop a PCXI technique to image two samples simultaneously, where each sample will act as a modulator for the other, but a clear image of each sample individually can be reconstructed computationally. 6/N

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Daniel Pelliccia @dan-pelliccia.bsky.social · 28/08/2026

Generally, the field modulation is generated by means of a periodic or random modulators. In this paper, Zdora et al realized that the role of sample and modulator are really interchangeable. You can think of the modulator as another sample! Or you can use a second sample as a modulator! 5/N

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Daniel Pelliccia @dan-pelliccia.bsky.social · 28/08/2026

PCXI can be realized in many ways, most of which require a modulation of the x-ray field before or after the sample. By tracking the minute changes to the modulation field caused by the sample, phase-contrast images can be obtained computationally. 4/N

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Daniel Pelliccia @dan-pelliccia.bsky.social · 28/08/2026

For instance, x-rays used in radiology are good for imaging of bones, but not for soft tissue or cartilages. For that, one needs a CT scan, which is great but imparts a much higher radiation dose. PCXI has the promise to solve the issue and reduce radiation dose. 3/N

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Daniel Pelliccia @dan-pelliccia.bsky.social · 28/08/2026

One of the most significant development in x-ray imaging in the last 30ish years are techniques to produce phase-contrast x-ray imaging (PCXI). Just like its optical counterpart, PCXI enables imaging low-absorbing samples, for which conventional, attenuation-based imaging is not suitable. 2/N

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Daniel Pelliccia @dan-pelliccia.bsky.social · 27/08/2026

It's the one-year anniversary of the publication of my book (with David Paganin). It turns out, that synchrotron emission is a lens through which we can explore many phenomena of emission (of light and particles) from non-inertial sources. #physics #synchrotron #science

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Daniel Pelliccia @dan-pelliccia.bsky.social · 27/08/2026

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Emily Hunt @emily.space · 24/08/2026

nowhere in Alfred Nobel's will did it say prizes can't be awarded posthumously or be edited after being awarded, nor that they have to be given to no more than three people in a year. (I read his will.) Not doing so is entirely a self-interested committee trying to save face

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The Australian Institute of Physics @aip.org.au · 20/08/2026

🌌 The cosmos has a soundtrack! Dr Karelle Siellez brings Painting the Universe to Newcastle, Adelaide & Brisbane, turning gravitational waves and cosmic explosions into art and music. 💻 Livestreams available nationwide. #ScienceWeek 🎟️ aip.org.au/Women-in-Phy...

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Nature Physics @natphys.nature.com · 20/08/2026

The deadline for applications is next Wednesday. Please spread the word to anyone who you think might be interested, and has the right to work in either Germany or India.

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Daniel Pelliccia @dan-pelliccia.bsky.social · 18/08/2026

Thanks @aip.org.au for the nice write-up about my career outside of academia! If you are wondering where a #Physics degree could take you, check their #PhysicsGotMeHere page for many inspiring stories of physicists making a difference 🌏

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Kirsty Wan @micromotility.bsky.social · 17/08/2026

What does a single-celled organism tell us about the origins of complex behaviour? Delighted to see the final version of our paper: Embodied behavioural complexity in a ciliated microorganism out in@natcomms.nature.com (Funded by @erc.europa.eu ERC) doi.org/10.1038/s414... #cilia #protistsonsky

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Daniel Pelliccia @dan-pelliccia.bsky.social · 09/07/2026

Better still, the entropy of the derivative of a signal can help with smoothing, because it accounts for the shape of the signal more naturally. #Physics #InformationTheory Read more at nirpyresearch.com/information-...

nirpyresearch.com

Information entropy for spectra • NIRPY Research

An introduction to the calculation of the information entropy (Shannon entropy) for NIR spectra, to be used as criterion for optimal smoothing.

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Daniel Pelliccia @dan-pelliccia.bsky.social · 09/07/2026

nirpyresearch.com

Information entropy for spectra • NIRPY Research

An introduction to the calculation of the information entropy (Shannon entropy) for NIR spectra, to be used as criterion for optimal smoothing.

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Diamond Light Source @diamondlightsource.bsky.social · 31/07/2026

Applications for our #Tomography Workshop: HTTomo are now open! This two-day workshop will help users gain confidence in using the HTTomo reconstruction software, from building bespoke pipelines and submitting jobs to interpreting results. Apply online by Monday 7 September 👉 bit.ly/44QvbEZ

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Prof Ben Britton @bmatb.expmicromech.com · 17/07/2026

Are you experienced with X-ray photoelectron spectroscopy, and looking for a new role? Or do you know someone who might be looking? We are recruiting for a Staff Scientist position at UBC. Find out more 👇 Please repost. 🧪🔬 ubc.wd10.myworkdayjobs.com/en-US/ubcfac...

ubc.wd10.myworkdayjobs.com

Research Scientist: X-ray photoelectron spectroscopy

Staff - Non Union Job Category M&P - AAPS Job Title Research Scientist: X-ray photoelectron spectroscopy Department Research | B. Britton| Department of Materials Engineering | Faculty of Applied ...

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Society for Applied Spectroscopy @sasspectroscopy.bsky.social · 15/07/2026

Whether you're new to spectroscopy or a seasoned professional, continuing education can help you stay current with emerging techniques, expand your expertise, and sharpen your skills. SAS offers a variety of educational and training opportunities designed for professionals at every career stage.

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ESO @eso.org · 15/07/2026

Known as Beta Pictoris d, it is the faintest exoplanet ever directly imaged from Earth. This is a major feat, as direct imaging only works for #exoplanets bright enough to show up next to their much brighter host stars. How does the newcomer compare to its siblings? 🔭 🧪 2/3

Six-panel montage of observations of the same star system taken between 2014 and 2025 with ESO’s VLT (SPHERE and ERIS instruments) and the James Webb Space Telescope (NIRCam). In each panel, the central star is hidden behind a coronagraph and marked with a white star symbol. A faint companion, highlighted by a white arrow, is visible at different positions over time.

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Daniel Pelliccia @dan-pelliccia.bsky.social · 14/07/2026

Still time to register for the next Nirpy Webinar presented by Dr Mercedes Bertotto. "Bridging Model Validation and Analytical Validation in Spectroscopy" 🧪🔬🌈👀 When: July 15th, 2026, 16:00 CET events.humanitix.com/nirpy-webina... #Spectroscopy #Machine_learning #MachineLearning #NIR

events.humanitix.com

Nirpy Webinar

Webinar by M. Bertotto - Bridging Model Validation and Analytical Validation in Spectroscopy: The Role of the Accuracy Profile

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Daniel Pelliccia @dan-pelliccia.bsky.social · 13/07/2026

1. Here's a sample selection method that doubles as training/test splitting method. 🧪 The algorithm was proposed by G Puchwein many years ago. For some reason, I couldn't find a #Python implementation of it, so here it is 👇️ nirpyresearch.com/sample-selec... #MachineLearning #NIR #DataScience

nirpyresearch.com

Sample selection with the Puchwein algorithm • NIRPY Research

The Puchwein algorithm is a distance-based iterative method that selects a maximally diverse subset of samples from a dataset. Here's an example for NIR spectroscopy.

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Daniel Pelliccia @dan-pelliccia.bsky.social · 13/07/2026

nirpyresearch.com

Sample selection with the Puchwein algorithm • NIRPY Research

The Puchwein algorithm is a distance-based iterative method that selects a maximally diverse subset of samples from a dataset. Here's an example for NIR spectroscopy.

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Daniel Pelliccia @dan-pelliccia.bsky.social · 13/07/2026

2. If you've ever trained a machine learning model from physical data, you know that acquiring calibration samples may be costly and laborious. But if you have a cheaper proxy, for instance optical or near-infrared #spectroscopy, you can use that proxy to pre-select the samples for calibration.

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Margaret Harris @drmlharris.bsky.social · 10/07/2026

I struggled with verb tenses when editing this article. We're seeing this galaxy as it was 12.7 billion years ago. Based on how it behaved then (which we're only seeing now), astronomers think it'll stop forming new stars in 50 million years, i.e. 12.65 billion years ago. My head hurts.🧪⚛️🔭

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Daniel Pelliccia @dan-pelliccia.bsky.social · 09/07/2026

In my blog, I focus on #chemometrics and #MachineLearning applied to optical and near-infrared #spectroscopy Smoothing, or denoising, is one of the most common steps to work with spectroscopy data, and information #entropy can be used as a criterion to guide the smoothing process.

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Daniel Pelliccia @dan-pelliccia.bsky.social · 09/07/2026

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Dr Dan Jones @hookean.bsky.social · 09/07/2026

The Physics Teaching Resource Finder now has over 10,000 resources! All sorted by age, topic and subtopic #iTeachPhysics #Science 🧪 www.drjonesphysics.com/physics-reso...

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Daniel Pelliccia @dan-pelliccia.bsky.social · 07/07/2026

📣 I'm hosting a series of webinars on #spectroscopy and #chemometrics. The next speaker will be Dr Mercedes Bertotto on "Bridging Model Validation and Analytical Validation in Spectroscopy" on July 15th, 16:00 CET Registration is free👇 events.humanitix.com/nirpy-webina... #NIR #MachineLearning

events.humanitix.com

Nirpy Webinar

Webinar by M. Bertotto - Bridging Model Validation and Analytical Validation in Spectroscopy: The Role of the Accuracy Profile

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Daniel Pelliccia @dan-pelliccia.bsky.social · 07/07/2026

📚️ A post from my archives: Genetic Algorithm for Wavelength Selection Using NumPy TL;DR A simplified implementation of a genetic algorithm for wavelength selection in #NIR #spectroscopy, using #numpy and @scikit-learn.org nirpyresearch.com/genetic-algo... #MachineLearning #chemometrics

nirpyresearch.com

Genetic algorithm for wavelength selection using Numpy • NIRPY Research

A implementation of a genetic algorithm for wavelength selection using basic Numpy functions.

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Daniel Pelliccia @dan-pelliccia.bsky.social · 07/07/2026

Hi @physgal.bsky.social , could I please be added to the Physics feed? Here's my orcid orcid.org/0000-0001-87... thanks 🙂

orcid.org

ORCID

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Daniel Pelliccia @dan-pelliccia.bsky.social · 06/07/2026

So, we decided to write a short introduction to the #book, touching on a few topics where the concept of #synchrotron emission is (unexpectedly!) key to the fundamental #physics which underpins it. Hope you like it 👇 medium.com/@danielpelli... -fin

medium.com

Synchrotron light as a journey through physics

Our new book explores the surprisingly far-reaching applications of the science of synchrotron emission

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Daniel Pelliccia @dan-pelliccia.bsky.social · 06/07/2026

As time went on however, we realised just how deeply the concept of #synchrotron light is embedded in many physical concepts. Rather than being “just” a technical topic, synchrotron emission is truly a lens through which one can explore many phenomena of #light and #particles emission. 3/N

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Daniel Pelliccia @dan-pelliccia.bsky.social · 06/07/2026

Synchrotron physics has been around for almost a century. Many large-scale synchrotron facilities are in operation around the world. The number of books on the topic is also very large. So, we decide to write something fresh and easy-going for undergraduate physics and engineering student. 2/N

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Daniel Pelliccia @dan-pelliccia.bsky.social · 06/07/2026

Over the past few years, myself and David Paganin have been writing a physics book on #synchrotron light. The book has been recently published by Oxford University Press. #Physics global.oup.com/academic/pro...

global.oup.com

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Daniel Pelliccia @dan-pelliccia.bsky.social · 05/07/2026

Deterministic training/test splitting is a good option for small datasets. The SPXY algorithm is one such method, designed maximize coverage of both spectra (X) and response variable (Y) in the training set. Here's a primer using #Python for #NIR #spectroscopy nirpyresearch.com/spxy-algorit...

nirpyresearch.com

The SPXY algorithm • NIRPY Research

SPXY is a deterministic splitting algorithm designed to incorporate information from both spectra and response. It's an extension of the Kennard-Stone method.

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