Results 221 to 230 of about 698,955 (287)

Random Diophantine equations in the primes

Mathematika, Volume 72, Issue 3, July 2026.
Abstract We consider equations of the form a1x1k+⋯+asxsk=0$a_{1}x_{1}^{k}+\cdots +a_{s}x_{s}^{k}=0$ where the variables xi$x_{i}$ are all taken to be primes. We define an analogue of the Hasse principle for solubility in the primes (which we call the prime Hasse principle), and prove that, whenever k⩾2$k\geqslant 2$, s⩾3k+2$s\geqslant 3k+2$, this holds
Philippa Holdridge
wiley   +1 more source

Turning Manuscripts into Publications: A Roadmap for Novice Authors. [PDF]

Adv Rehabil Sci Pract
Yalçınkaya B, Çolak AF, Abacıoğlu HB, Özçakar L.   +3 more
europepmc   +1 more source

How COVID-19 affected academic publishing: a 3-year study of 17 million research papers. [PDF]

Int J Epidemiol
Whitaker M, Rodrigues S, Cooke G, Virlon B, Donnelly CA, Ward H, Elliott P, Chadeau-Hyam M.   +7 more
europepmc   +1 more source

Expression of Concern: Escalating spread of SARS-CoV-2 infection after school reopening among students in hotspot districts of Oromia Region in Ethiopia: Longitudinal study. [PDF]

PLoS One
PLOS One Editors.
europepmc   +1 more source

From Gatekeepers to Gateways: How Acceleration and Platform Logic Reshape Life‐Science Journals

Learned Publishing, Volume 39, Issue 3, July 2026.
Maria Teresa Colangelo, Marco Meleti, Carlo Galli   +2 more
wiley   +1 more source

Mapping the Substrate Specificity Landscape of PAD2 and PAD4 Enzymes

ChemBioChem, Volume 27, Issue 11, 15 June 2026.
Protein citrullination, driven by peptidyl arginine deiminases (PAD2, PAD4), is linked to multiple diseases. Using a combinatorial peptide library and advanced mass spectrometry, we reveal distinct substrate selectivity profiles of PAD2 and PAD4. While PAD2 broadly citrullinates arginine‐containing peptides, PAD4 is highly sequence‐restricted, with ...
Adina Borbély, Arnold Steckel, Dávid Papp, Domonkos Pál, Katalin Uray, Viktória Goldschmidt Gőz, Gitta Schlosser   +6 more
wiley   +1 more source

Science Behind a Paywall: Restricted Access Limits the Promise of Artificial Intelligence

Learned Publishing, Volume 39, Issue 3, July 2026.
Haoyi Zheng, Huichun Zhan
wiley   +1 more source

Phenolate‐ and Alcoholate‐Based Chromium N‐Heterocyclic Carbene Complexes: Structural Peculiarities, Magnetometric and Electron Paramagnetic Resonance Study, and Catalytic Ethylene Oligomerization

European Journal of Inorganic Chemistry, Volume 29, Issue 16, 4 June 2026.
The first low‐oxidation (I/III) state chromium‐complex bearing a O‐chelating NHC ligand has been synthesized and structurally characterized by single‐crystal X‐ray analysis. The formation of the mixed‐valence species was further supported by SQUID magnetometry and high‐field electron paramagnetic resonance (EPR) spectroscopy.
Somnath Bhattacharya, Alexander Allgaier, Wolfgang Frey, Joris van Slageren, Michael R. Buchmeiser   +4 more
wiley   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, Volume 28, Issue 11, 3 June 2026.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source