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@UP8@mastodon.social
2026-01-02 22:14:23

💸 Trillions Spent and Big Software Projects Are Still Failing
#software

@timbray@cosocial.ca
2026-02-27 22:59:08

Good piece from Timothy Snyder argues that Trump is failing at fascism: #USpol

@arXiv_csDS_bot@mastoxiv.page
2026-02-03 07:35:01

End Cover for Initial Value Problem: Complete Validated Algorithms with Complexity Analysis
Bingwei Zhang, Chee Yap
arxiv.org/abs/2602.00162 arxiv.org/pdf/2602.00162 arxiv.org/html/2602.00162
arXiv:2602.00162v1 Announce Type: new
Abstract: We consider the first-order autonomous ordinary differential equation \[ \mathbf{x}' = \mathbf{f}(\mathbf{x}), \] where $\mathbf{f} : \mathbb{R}^n \to \mathbb{R}^n$ is locally Lipschitz. For a box $B_0 \subseteq \mathbb{R}^n$ and $h > 0$, we denote by $\mathrm{IVP}_{\mathbf{f}}(B_0,h)$ the set of solutions $\mathbf{x} : [0,h] \to \mathbb{R}^n$ satisfying \[ \mathbf{x}'(t) = \mathbf{f}(\mathbf{x}(t)), \qquad \mathbf{x}(0) \in B_0 . \]
We present a complete validated algorithm for the following \emph{End Cover Problem}: given $(\mathbf{f}, B_0, \varepsilon, h)$, compute a finite set $\mathcal{C}$ of boxes such that \[ \mathrm{End}_{\mathbf{f}}(B_0,h) \;\subseteq\; \bigcup_{B \in \mathcal{C}} B \;\subseteq\; \mathrm{End}_{\mathbf{f}}(B_0,h) \oplus [-\varepsilon,\varepsilon]^n , \] where \[ \mathrm{End}_{\mathbf{f}}(B_0,h) = \left\{ \mathbf{x}(h) : \mathbf{x} \in \mathrm{IVP}_{\mathbf{f}}(B_0,h) \right\}. \]
Moreover, we provide a complexity analysis of our algorithm and introduce a novel technique for computing the end cover $\mathcal{C}$ based on covering the boundary of $\mathrm{End}_{\mathbf{f}}(B_0,h)$. Finally, we present experimental results demonstrating the practicality of our approach.
toXiv_bot_toot

@Techmeme@techhub.social
2026-02-01 06:01:40

Filing: Chinese AI chip designer Cambricon reports a $316M net profit in 2025, its first profitable year; rivals Moore Threads and MetaX narrowed their losses (Coco Feng/South China Morning Post)
scmp.com/tech/tech-t…

@soundclamp@mastodon.xyz
2026-01-30 03:04:13

#Requiescat For Thee Parkside. sfist.com/2026/01/29/following

@arXiv_physicsinsdet_bot@mastoxiv.page
2026-02-03 09:41:32

Proton Energy Dependence of Radiation Induced Low Gain Avalanche Detector Degradation
Veronika Kraus, Marcos Fernandez Garcia, Luca Menzio, Michael Moll
arxiv.org/abs/2602.01800 arxiv.org/pdf/2602.01800 arxiv.org/html/2602.01800
arXiv:2602.01800v1 Announce Type: new
Abstract: Low Gain Avalanche Detectors (LGADs) are key components for precise timing measurements in high-energy physics experiments, including the High Luminosity upgrades of the current LHC detectors. Their performance is, however, limited by radiation induced degradation of the gain layer, primarily driven by acceptor removal. This study presents a systematic comparison of how the degradation evolves with different incident proton energies, using LGADs from Hamamatsu Photonics (HPK) and The Institute of Microelectronics of Barcelona (IMB-CNM) irradiated with 18 MeV, 24 MeV, 400 MeV and 23 GeV protons and fluences up to 2.5x10^15 p/cm2. Electrical characterization is used to extract the acceptor removal coefficients for different proton energies, whereas IR TCT measurements offer complementary insight into the gain evolution in LGADs after irradiation. Across all devices, lower energy protons induce stronger gain layer degradation, confirming expectations. However, 400 MeV protons consistently appear less damaging than both lower and higher energy protons, an unexpected deviation from a monotonic energy trend. Conversion of proton fluences to 1 MeV neutron-equivalent fluences reduces but does not eliminate these differences, indicating that the standard Non-Ionizing Energy Loss (NIEL) scaling does not fully account for the underlying defect formation mechanisms at different energies and requires revision when considering irradiation fields that contain a broader spectrum of particle types and energies.
toXiv_bot_toot

@tante@tldr.nettime.org
2026-02-28 13:14:16

If you have neither
- a question that it's supposed to answer
- a hypothesis you want to test
- a set of variables or metrics you are actively following
you have no "experiment".

@grahamperrin@bsd.cafe
2026-03-01 13:56:17

@… thanks!
My gut feeling, which might be wrong (QEMU is very new to me): QEMU could be tricky – if the settings that are typical on, for example, Windows, macOS and Linux hosts differ substantially from settings that are typical for a FreeBSD 15 or 16 host.
I mean, don't let QEMU be a distraction.
In particular: I don…

@Speckdaene@nrw.social
2026-02-02 20:59:48

@… Platt ut de Neegde vun Flensborg. Jümmers nuch, ok winn ik nu al lang in Düörpm wohnen do, wo de Lüüd keen Platt mehr snacken deiht.

@davidaugust@mastodon.online
2026-02-25 19:46:52

"And so the state of Trump is that he is stuck. He is failing at fascism. He can break things, but he cannot make things. He can bluster, but he cannot triumph. He is tired, and every day is harder than the day before, and there are rivals in the wings, and elections coming."
snyder.substack.com/p/fascist…