Tootfinder

Slow progress the last couple days because I've been going into the office for work and the commute is eating up my time I'd otherwise spend on such things.
But now it's the weekend and the switch engine board is coming together nicely.
Still have 514 nets to route - mostly the supervisor, line card management buses, and power supply but also some other odds and ends like the FPGA JTAG and part of the SPI flash.
Also I have to get the tach/PWM signals from the m…

HST pre-imaging of a free-floating planet candidate microlensing event
Mateusz Kapusta, Przemek Mroz, Yoon-Hyun Ryu, Andrzej Udalski, Szymon Kozlowski, Sean Terry, Michal K. Szymanski, Igor Soszynski, Pawel Pietrukowicz, Radoslaw Poleski, Jan Skowron, Krzysztof Ulaczyk, Mariusz Gromadzki, Krzysztof Rybicki, Patryk Iwanek, Marcin Wrona, Mateusz J. Mr\'oz, Michael D. Albrow, Sun-Ju Chung, Andrew Gould, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, In-Gu Shin, Yossi Shvartzvald, Jennifer…

HST pre-imaging of a free-floating planet candidate microlensing event
High-cadence microlensing observations uncovered a population of very short-timescale microlensing events, which are believed to be caused by the population of free-floating planets (FFP) roaming the Milky Way. Unfortunately, the light curves of such events are indistinguishable from those caused by wide-orbit planets. To properly differentiate both cases, one needs high-resolution observations that would allow resolving a putative luminous companion to the lens long before or after the event. …

Subdiffusion from competition between multi-exponential friction memory and energy barriers
Anton Klimek, Benjamin A. Dalton, Roland R. Netz
https://arxiv.org/abs/2506.03036

Subdiffusion from competition between multi-exponential friction memory and energy barriers
Subdiffusion is a hallmark of complex systems, ranging from protein folding to transport in viscoelastic media. However, despite its pervasiveness, the mechanistic origins of subdiffusion remain contested. Here, we analyze both Markovian and non-Markovian dynamics, in the presence and absence of energy barriers, in order to disentangle the distinct contributions of memory-dependent friction and energy barriers to the emergence of subdiffusive behavior. Focusing on the mean squared displacement …

RepuNet: A Reputation System for Mitigating Malicious Clients in DFL
Isaac Marroqui Penalva, Enrique Tom\'as Mart\'inez Beltr\'an, Manuel Gil P\'erez, Alberto Huertas Celdr\'an
https://arxiv.org/abs/2506.19892

RepuNet: A Reputation System for Mitigating Malicious Clients in DFL
Decentralized Federated Learning (DFL) enables nodes to collaboratively train models without a central server, introducing new vulnerabilities since each node independently selects peers for model aggregation. Malicious nodes may exploit this autonomy by sending corrupted models (model poisoning), delaying model submissions (delay attack), or flooding the network with excessive messages, negatively affecting system performance. Existing solutions often depend on rigid configurations or addition…

UK FCDO decision to cut back aid to education and to gender initiatives is devastating.
'In an open letter [to UK PM Keir Starmer] published today, several high-profile are joined by entrepreneurs, respected academics and concerned citizens from across the UK in warning that proposed cuts to the UK aid budget could have devastating consequences for millions of girls worldwide whose futures depend on access to education.'

Efficient Precision-Scalable Hardware for Microscaling (MX) Processing in Robotics Learning
Stef Cuyckens, Xiaoling Yi, Nitish Satya Murthy, Chao Fang, Marian Verhelst
https://arxiv.org/abs/2505.22404

Efficient Precision-Scalable Hardware for Microscaling (MX) Processing in Robotics Learning
Autonomous robots require efficient on-device learning to adapt to new environments without cloud dependency. For this edge training, Microscaling (MX) data types offer a promising solution by combining integer and floating-point representations with shared exponents, reducing energy consumption while maintaining accuracy. However, the state-of-the-art continuous learning processor, namely Dacapo, faces limitations with its MXINT-only support and inefficient vector-based grouping during backpro…

The vast majority of the plastic flotsam and jetsam in the North Pacific subtropical gyre (the North Pacific Garbage Patch) consists of discarded fishing gear.
https://www.nature.com/articles/s41598-022-16529-0

Industrialised fishing nations largely contribute to floating plastic pollution in the North Pacific subtropical gyre - Scientific Reports
The subtropical oceanic gyre in the North Pacific Ocean is currently covered with tens of thousands of tonnes of floating plastic debris, dispersed over millions of square kilometres. A large fraction is composed of fishing nets and ropes while the rest is mostly composed of hard plastic objects and fragments, sometimes carrying evidence on their origin. In 2019, an oceanographic mission conducted in the area, retrieved over 6000 hard plastic debris items > 5 cm. The debris was later sorte…

Zwischen #Nordgoltern, #Barrigsen und #Landringhausen plant die Umweltgerechte Kraftanlagen GmbH (UKA) einen neuen

Neuer Windpark mit sieben Anlagen soll 39.000 Haushalte mit Strom versorgen
Nordgoltern. Auf einer rund 60 Hektar großen Ackerfläche in der Feldmark zwischen Nordgoltern, Barrigsen und Landringhausen soll ein neuer Windpark zur Produktion erneuerbarer Energie entstehen. Pläne der UKA-Entwicklungsgesellschaft sehen sieben Windräder mit einer Gesamthöhe von bis zu 270 Metern vor. Künftig sollen die Anlagen mit einer Leistung von jeweils sechs bis sieben Megawatt jährlich soviel sauberen Strom ins Netz einspeisen, um damit rund 39.000 Drei-Personen-Haushalte versor…

Hierarchical friction memory leads to subdiffusive configurational dynamics of fast-folding proteins
Anton Klimek, Benjamin A. Dalton, Lucas Tepper, Roland R. Netz
https://arxiv.org/abs/2506.18823

Hierarchical friction memory leads to subdiffusive configurational dynamics of fast-folding proteins
Proteins often exhibit subdiffusive configurational dynamics. The origins of this subdiffusion are still unresolved. We investigate the impact of non-Markovian friction and the free energy landscape on the dynamics of fast-folding proteins in terms of the mean squared displacement (MSD) and the mean first-passage-time (MFPT) of the folding reaction coordinate. We find the friction memory kernel from published molecular dynamics (MD) simulations to be well-described by a hierarchical multi-expon…

#PhantastikPrompts 13.7.: Wie benutzt du schlimme Erfahrungen anderer? Widerwillig? Nur mit Erlaubnis? Gar nicht?
Geschichten, die ausschließlich schlimme Erfahrungen anderer ausschlachten und diese für Nichtbetroffene palatable darlegen, langweilen mich zu Tode und widern mich außerdem zutiefst an. Leider gewinnt dieses Zeug dann auch noch ständig Preise und wird vom Feuilleton…