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Mathematical Systems Theory, 1980 <p>An attribute grammar G is k-visit if for any derivation tree t of G it is possible to evaluate all the attributes associated with t by walking through t in such a way that no node in t is visited more than k times.</p><p>We show in this paper that any well-defined attribute grammar G is k-visit for some k.
Riis, Hanne, Skyum, Sven
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Advanced Materials, EarlyView.Biomimetic 3D‐printed hydrogel bioadhesives (PTLAs) are designed to address the limitations of existing bioadhesives, offering solutions for challenging tissue adhesion and enhanced healthcare. These PTLAs feature robust wet/underwater tissue adhesion/sealing, superior freeze/pressure and infection resistance, and adaptive self‐healing/gelling capacity,
Qi Wu +4 more
wiley +1 more source
Bacteria‐Responsive Nanostructured Drug Delivery Systems for Targeted Antimicrobial Therapy
Advanced Materials, EarlyView.Bacteria‐responsive nanocarriers are designed to release antimicrobials only in the presence of infection‐specific cues. This selective activation ensures drug release precisely at the site of infection, avoiding premature or indiscriminate release, and enhancing efficacy.
Guillermo Landa +3 more
wiley +1 more source
Optoregulated mRNA Delivery Controls Pleiotropic Immune Signaling for Tumor‐Targeted Therapy
Angewandte Chemie, EarlyView.A light‐induced transfection system (LITS) was designed to precisely control the delivery of mRNA, achieving spatiotemporal de‐coupling of the pleotropic inflammatory and tolerogenic signals of interleukin‐2 to conduct safe eradication of tumors. Abstract Spatiotemporal control of protein expression remains a critical challenge in messenger RNA (mRNA ...
Pengwen Chen +7 more
wiley +2 more sources
Homeostasis of Gut Microbiota Protects against Susceptibility to Fungal Pneumonia
Advanced Science, EarlyView.Fungal pneumonia induces inflammation, shown by heightened IL‐6, IL‐1β, TNF‐α levels and a growth in Staphylococcus in the alveolar flora. The gut microbiota, acting through the gut‐lung axis via blood, impacts fungal pneumonia susceptibility by altering lung metabolism and inflammatory responses.
Jian Ji +12 more
wiley +1 more source
A Universal Approach Using Water‐Soluble Templates for Meso‐ and Macro‐Porous Organic Polymers
Advanced Science, EarlyView.A versatile solid‐state strategy using water‐soluble perovskite fluorides enables the synthesis of meso‐ and macro‐porous covalent organic polymers. The pore size is tunable by the template particle size, and the method overcomes the compositional limitations of conventional templating approaches, offering broad applicability in porous polymer design ...
Yusuke Asakura +4 more
wiley +1 more source
Advanced Science, EarlyView.AI is not seen through an unbiased lens. People tend to stereotype AI as competent and link it with socially advantaged groups—such as men, the wealthy, the young, and prestigious occupations—raising concerns that such perceptions may deepen existing social divides rather than bridge them.
Zixi Wang +4 more
wiley +1 more source
Advanced Science, EarlyView.Alkaline seawater electrolysis represents a promising approach for sustainable green hydrogen production. Nevertheless, catalyst stability remains a critical challenge due to active metal dissolution and chlorine‐induced corrosion during prolonged industrial‐scale operation. Here, a surface engineering strategy is presented that employs phytic acid (PA)
Peng Wang +8 more
wiley +1 more source
Knowledge Representation with Attribute Grammars [PDF]
The Computer Journal, 1986 Summary: The use of attribute grammars for knowledge representation is examined in the present paper. It is shown how data knowledge and knowledge-base knowledge can be represented using syntactic and semantic notation. Control knowledge is represented by the parsing mechanism of the interpreter used.
George K. Papakonstantinou, John Kontos
openaire +3 more sources