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Passes and paths of attribute grammars
Information and Control, 1981 Contents. Abstract, Introduction, 1. Terminology, 2. The relationship between passes and paths, 3. Exponential lower bounds, 4. Upper bounds, 5. Path languages, Conclusion, References.An attribute grammar is pure (left-to-right) multi-pass if a bounded number of left-to-right passes over the derivation tree suffice to compute all its attributes.
J. Engelfriet, FILE', GILBERTO
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Machines for attribute grammars
Information and Control, 1986 Two automata models are introduced that play, with respect to attribute grammars and attribute-evaluation for them, the same role as pushdown automata have with respect to context-free grammars and their parsing. It is shown, in fact, that these automata define the same class of string-to-value translations as attribute grammars. Their class of tree-to-
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Interpretation and reduction of attribute grammars [PDF]
Acta Informatica, 1983 An attribute grammar (AG) is in reduced form if in all its derivation trees every attribute contributes to the translation. We prove that, eventhough AG are generally not in reduced form, they can be reduced, i.e., put into reduced form, without modifying their translations. This is shown first for noncircular AG and then for arbitrary AG.
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Theoretical Computer Science, 1993 AbstractThis paper develops a notion of attributes on tree grammars. We study the case when graphs of attributes are associated with terminal symbols of tree grammars. An algebraic formalism is given in this case for attributed tree grammars. We also describe algorithms for the test of noncircularity.
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Molecular Oncology, EarlyView.This article advocates integrating temporal dynamics into cancer research. Rather than relying on static snapshots, researchers should increasingly consider adopting dynamic methods—such as live imaging, temporal omics, and liquid biopsies—to track how tumors evolve over time.
Gautier Follain +3 more
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Advanced Engineering Materials, EarlyView.The influence of Hot Isostatic Pressing (HIP) temperature on the microstructure and creep performance of powder bed fusion–laser beam processed CM247LC superalloy is investigated. Grain growth and γ’ precipitate evolution are characterized following HIP at varying temperatures.
Ahmed Fardan +4 more
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Thermoresponsive BrushGel Microcarriers for Efficient Cell Expansion and Enzyme‐Reduced Harvesting
Advanced Healthcare Materials, EarlyView.Askari et al, report on temperature‐responsive microcarriers to minimize enzyme use and cost in dynamic cultures. Abstract Scaling up cell therapy requires efficient expansion of high‐quality cells. Microcarrier(MC)‐based systems offer high surface‐to‐volume ratios and reduce culture media usage.
Esfandyar Askari +9 more
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Human Skin Models in Biophotonics: Materials, Methods, and Applications
Advanced Healthcare Materials, EarlyView.This review discusses how the optical properties of human skin can be replicated in human skin models. It describes the principles, materials, and techniques used to develop artificial skin for biophotonics research. Finally, the article highlights recent advances and shows how these models improve the study of light‐skin interactions without the need ...
Dardan Bajrami +4 more
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Advanced Materials, EarlyView.This review highlights the potential of 2D‐2D heterostructures (HRs) in advancing monovalent ion‐based energy storage. It examines their role in tailoring charge interactions mechanisms, optimizing interfacial properties, and overcoming the limitations of individual layered materials.
Neetu Bansal +6 more
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