Results 31 to 40 of about 23,253 (274)

MolE: a foundation model for molecular graphs using disentangled attention

open access: yesNature Communications
Models that accurately predict properties based on chemical structure are valuable tools in the chemical sciences. However, for many properties, public and private training sets are typically small, making it difficult for models to generalize well ...
Oscar Méndez-Lucio   +2 more
doaj   +1 more source

A Recursive and Parallelized Dynamic Programming Implementation of Hard Merkle-Hellman Knapsack System for Public Key Cryptography

open access: yesCybernetics and Information Technologies, 2021
Merkle-Hellman public key cryptosystem is a long-age old algorithm used in cryptography. Despite being computationally fast, for very large input sizes it may operate slower due to thread creation overhead or reaching a deadlock situation. In this paper,
Rahul Vaddadi Sai   +2 more
doaj   +1 more source

Automatic Determination of Quasicrystalline Patterns from Microscopy Images

open access: yesAdvanced Intelligent Discovery, EarlyView.
This work introduces a user‐friendly machine learning tool to automatically extract and visualize quasicrystalline tiling patterns from atomically resolved microscopy images. It uses feature clustering, nearest‐neighbor analysis, and support vector machines. The method is broadly applicable to various quasicrystalline systems and is released as part of
Tano Kim Kender   +2 more
wiley   +1 more source

Assessing interaction recovery of predicted protein-ligand poses

open access: yesJournal of Cheminformatics
The field of protein-ligand pose prediction has seen significant advances in recent years, with machine learning-based methods now being commonly used in lieu of classical docking methods or even to predict all-atom protein-ligand complex structures ...
David Errington   +3 more
doaj   +1 more source

Celestial recursion

open access: yesJournal of High Energy Physics, 2023
Abstract We examine the BCFW recursion relations for celestial amplitudes and how they inform the celestial bootstrap program. We start by recasting the celestial incarnation of the BCFW shift as a generalization of the action of familiar asymptotic symmetries on hard particles, before focusing on two limits: z → ∞ and z → 0.
Yangrui Hu, Sabrina Pasterski
openaire   +3 more sources

On bar recursion of types 0 and 1 [PDF]

open access: yes, 1979
For general information on bar recursion the reader should consult the papers of Spector [8], where it was introduced, Howard [2] and Tait [11]. In this note we shall prove that the terms of Godel's theory T (in its extensional version of Spector [8]
HELMUT SCHWICHTENBERG   +1 more
core  

Recursively invariant β-recursion theory

open access: yesAnnals of Mathematical Logic, 1981
AbstractWe introduce recursively invariant β-recursion theory as a new approach towards recursion theory on an arbitraty limit ordinal β. We follow Friedman and Sacks and call a subset of β β-recursively enumerable if it is Σ1-definable over Lβ. Since Friedman-Sacks' notion of a β-finite set is not invariant under β-recursive permutations of β we turn ...
openaire   +1 more source

Clinical pharmacology and tolerability of REC‐994, a redox‐cycling nitroxide compound, in randomized phase 1 dose‐finding studies

open access: yesPharmacology Research & Perspectives
Cerebral cavernous malformation (CCM) has variable clinical symptoms, including potentially fatal hemorrhagic stroke. Treatment options are very limited, presenting a large unmet need.
Ron Alfa   +10 more
doaj   +1 more source

Utterance evolution: the road to generative, combinatorial communicators

open access: yesBiological Reviews, EarlyView.
ABSTRACT Language has long been considered uniquely complex in the animal kingdom; however, animal research over the last decade has begun to challenge some long‐standing premises about exactly which language capacities are uniquely human. The task of resolving why and how complex communication systems evolve, particularly human language, has ...
Catherine Crockford   +2 more
wiley   +1 more source

Recursive construction of perfect DNA molecules from imperfect oligonucleotides

open access: yesMolecular Systems Biology, 2008
Making faultless complex objects from potentially faulty building blocks is a fundamental challenge in computer engineering, nanotechnology and synthetic biology.
Gregory Linshiz   +6 more
doaj   +1 more source

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