Paul Johnson

Jan 27, 2025 | nature.com | Christopher Johnson |Kun Wang |Paul Johnson

Significant progress has been made in probing the state of an earthquake fault by applying machine learning to continuous seismic waveforms. The breakthroughs were originally obtained from laboratory shear experiments and numerical simulations of fault shear, then successfully extended to slow-slipping faults. Here we apply the Wav2Vec-2.0 self-supervised framework for automatic speech recognition to continuous seismic signals emanating from a sequence of moderate magnitude earthquakes during the 2018 caldera collapse at the Kīlauea volcano on the island of Hawai’i. We pre-train the Wav2Vec-2.0 model using caldera seismic waveforms and augment the model architecture to predict contemporaneous surface displacement during the caldera collapse sequence, a proxy for fault displacement. We find the model displacement predictions to be excellent. The model is adapted for near-future prediction information and found hints of prediction capability, but the results are not robust. The results demonstrate that earthquake faults emit seismic signatures in a similar manner to laboratory and numerical simulation faults, and artificial intelligence models developed for encoding audio of speech may have important applications in studying active fault zones. Here, the authors apply the Wav2Vec-2.0 self-supervised framework for automatic speech recognition to continuous seismic signals emanating from a sequence of moderate magnitude earthquakes during the 2018 caldera collapse at the Kilauea volcano on the island of Hawai’i.

Nov 5, 2024 | jdsupra.com | Paul Johnson

Advanced planning for an early stage equity financing can significantly smooth the path for startups, helping to identify opportunities and avoid setbacks. A critical part of the process is the investor’s legal due diligence. It’s important to remember that the legal diligence typically happens after the term sheet is signed. Term sheets start with the valuation of your company, usually determined after business diligence, and propose a price-per-share for the investment in your equity.

May 21, 2024 | jdsupra.com | Paul Johnson

[co-author: Stefan Okhuysen]Q&A with Procopio Partner Paul Johnson and HCAP Partners Partner Stefan OkhuysenWhat do private equity and growth capital investors look for when adding new companies to their portfolio, and what strategies do they apply to help those companies optimize capital? Procopio Partner and Mergers & Acquisitions and Strategic Joint Ventures co-leader Paul Johnson dove into that topic in a Q&A with Stefan Okhuysen, Partner of HCAP Partners.

Apr 26, 2024 | jdsupra.com | Rachel Edwards |Paul Johnson

In a move that, if allowed to go into effect, could force companies across the United States to tear up existing contracts, the U.S. Federal Trade Commission (“FTC”) approved a Final Rule April 23, 2024, effectively barring any person from entering into a non-compete agreement or clause with most U.S. workers, subject to certain limited exceptions.

Apr 14, 2024 | nature.com | Peter Mee |Andrew H. Buultjens |Deborah A. Williamson |Kim Blasdell |Chris Sanders |Stuart Larsen | +6 more

Correction to: Nature Microbiology https://doi.org/10.1038/s41564-023-01553-1, published online 23 January 2024. In the version of the article initially published, Extended Data Tables 1–3 were missing. They have now been added to the HTML and PDF versions of the article.