Results 101 to 110 of about 14,551,834 (324)
(Un)Decidability Results for Word Equations with Length and Regular Expression Constraints [PDF]
, 2013 We prove several decidability and undecidability results for the satisfiability and validity problems for languages that can express solutions to word equations with length constraints.
Ganesh, Vijay +3 more
core
Advanced Functional Materials, EarlyView.This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies +8 more
wiley +1 more source
Word problems: A review of linguistic and numerical factors contributing to their difficulty
Frontiers in Psychology, 2015 Word problems belong to the most difficult and complex problem types that pupils encounter during their elementary-level mathematical development. In the classroom setting, they are often viewed as merely arithmetic tasks; however, recent research shows ...
Gabriella eDaroczy +7 more
doaj +1 more source
Elementary School, 2020 This study aim to: 1) describe the effect of realistic mathematic approach to problem solving abilities in word problems in elementery school students, 2) describe the influence of reading skills in problem solving skills in word problems in elementary ...
Budiharti dan Deri Anggraini
doaj +1 more source
The word problem distinguishes counter languages
, 2006 Counter automata are more powerful versions of finite-state automata where addition and subtraction operations are permitted on a set of n integer registers, called counters.
Cleary, Sean +2 more
core +1 more source
Sets Represented as the Length-n Factors of a Word
, 2013 In this paper we consider the following problems: how many different subsets of Sigma^n can occur as set of all length-n factors of a finite word? If a subset is representable, how long a word do we need to represent it?
A. Carpi +6 more
core +1 more source
Advanced Functional Materials, EarlyView.[001]‐oriented Sb2Se3 film with improved crystallinity and adjusted composition is achieved via a new thermal treatment approach consisting of preliminary annealing of the Sb layer before its selenization. The findings of this work demonstrate enhanced charge carriers' transportation, a stable performance, and an improvement of H2 generation from ...
Magno B. Costa +7 more
wiley +1 more source
Advanced Functional Materials, EarlyView.The SERS spectra of reporter molecules adsorbed on chiral gold nanorods depends on the handedness of circularly polarized light (CPL‐SERS). The bisignate plasmonic CD spectra of chiral nanorods provides wavelength‐dependent CPL‐SERS. Selective discrimination of chiral nanorod handedness and different Raman reporters allow highly sensitive codification ...
Andrés Serrano‐Freijeiro +9 more
wiley +1 more source
Frontline Learning Research, 2016 Non-routine word problem solving is an essential feature of the mathematical development of elementary school students worldwide. Many students experience difficulties in solving these problems due to erroneous problem comprehension.
Anton Boonen +3 more
doaj +1 more source
Problems of Word Semantics from the Viewpoint of Linguistic Categories (by the Example of the English Synonyms with the Common Meaning Cunning) [PDF]
, 2020 Oksana Gennad'evna Lukoshus
openalex +1 more source