Butterfly study points to a rewired route to body segments
Preprint research in the painted lady finds only some Drosophila gene counterparts in stripe-like patterns, with Blimp1 taking a new role.
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Brain-Rhythm Waveform Predicts Motor-Sequence Learning
The paper reports a relationship between premotor mu rhythm shape and human movement learning, but the available extract gives no effect size or methods.
Review maps how hybrid light-matter systems move energy and charge
The Feature Article links ultrafast coherence, micron-scale transport and cavity-dependent mobility across photonic, plasmonic and open-cavity platforms.
Model analysis leaves little room for neutron-star twin scenarios
Preprint analysis finds a tiny allowed region for twin-star scenarios while modeled neutron-star radii cluster near 12 kilometres.
An Eigenvalue Method Recovers Repeated Roots and Reconstructs a Tensor
Preprint: A symbolic-numeric workflow also reconstructs a sample tensor, while the paper stops short of a broad performance test.
Preprint reports 84 new bounds for covering-code problems
A computational study tightens upper and lower estimates across 83 parameter cells, while leaving key gaps unresolved.
DESI data hint at changing matter density, but evidence is weak
Preprint: The analysis says future DESI releases could test the trend more sharply, while warning that systematics remain possible.
SAPO matches PPO on benchmark tasks while using less memory
A preprint under review reports that SAPO matched or slightly exceeded PPO on two benchmarks while using less peak GPU memory and less time per iteration.
Mathematical study finds when poset convolutions obey a flow law
Preprint: An arXiv analysis shows that branching can break the composition rule, while rooted forests support it.
New Method Finds Near-Optimal Quantum Parity-Check Circuits
Preprint tests found circuits at the graph-degree depth limit in most cases, including 25 of 27 lifted Quantum Tanner codes.
Higher-term tilting complexes reveal kernels beyond rings
Preprint: Some higher-term tilting complexes produce non-abelian kernels that cannot be captured by ordinary-ring realizations.
Radio maps favor a compact double for J0011+3443
Preprint: Four-frequency VLBA observations favor a GPS-class compact symmetric object, but lensing and dual-AGN explanations remain open.
Sparse-Attention Training Outperforms Exact Attention in Tests
Preprint: A single-model experiment found higher long-context benchmark scores when training used the same cache rules as inference.
Cone Geometry Sets a Threshold for Global PDE Solutions
Preprint: A mathematical analysis finds when positive global solutions exist and classifies every solution in the solvable regime.
Combining arithmetic functions produces sparse exceptional sets
Preprint: A theoretical analysis finds that several exceptional sets thin out among the integers, while leaving open whether its upper bounds are optimal.
Mathematicians map how random shape valuations are built
Preprint: A mathematical study ties independent increments to jumps from closed convex sets, but its isotropic decomposition is only weakly equivalent.
Laser experiment produces tunable pairs of attosecond soft-X-ray pulses
A preprint reports a laboratory demonstration that varied the spacing and relative phase of two ultrashort soft-X-ray pulses.
Chronos-2 Leads Test of Zero-Shot Heat-Load Forecasts
Preprint: Chronos-2 had lower error than TabPFN-TS in Munich, but both models showed gaps in the calibration of their probabilistic forecasts.
DecoVAE reports larger forecast gains on longer horizons
Preprint: DecoVAE reports lower forecast errors and a smaller computing footprint across seven multivariate time-series benchmarks.
Simpler optical-link decoding matched exact method in simulations
Preprint: A zero-crossing shortcut matched exact soft-decision decoding in simulated RIN-limited optical links, but its performance depended on variance estimates and code choice.