The skill of writing numerals necessitates a certain developmental maturity. Studying the age at which children start to develop this skill and assessing problems they encounter while writing numerals should give direction to their training. From 8 schools a total of 267 children, ages 60 to 89 mo., were asked to write the numerals 1 to 9. Analysis showed that 80% of the children wrote most of the numerals correctly, 15% wrote inverted numerals, 2.0% wrote some numerals as letters, and 4% did not write certain numerals at all. In addition, 64% of children ages 60 to 65 mo. gave correct responses, and the perception of correct responses increased across age groups until 95% were correct in the group who were 84 to 89 mo. There was no significant difference between girls and boys in these writing skills.
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http://dx.doi.org/10.2466/pms.98.2.656-660 | DOI Listing |
ACS Appl Mater Interfaces
September 2024
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, People's Republic of China.
The combination of wearable sensors with machine learning enables intelligent perception in human-machine interaction and healthcare, but achieving high sensitivity and a wide working range in flexible strain sensors for signal acquisition and accurate recognition remains challenging. Herein, we introduced carboxymethyl cellulose (CMC) into a carbon nanotubes (CNTs)/MXene hybrid network, forming tight anchoring among the conductive materials and, thus, bringing enhanced interaction. The silicone-rubber-encapsulated CMC-anchored CNTs/MXene (CCM) strain sensor exhibits an excellent sensitivity (maximum gauge factor up to 71 294), wide working range (200%), ultralow detection limit (0.
View Article and Find Full Text PDFCogn Sci
June 2024
Department of English Language and Linguistics, University of Birmingham.
There are three main types of number used in modern, industrialized societies. Cardinals count sets (e.g.
View Article and Find Full Text PDFJ Clin Exp Neuropsychol
April 2024
Department of Psychology, University of Turin, Turin, Italy.
Instruction: Children with a Specific Learning Disorder (SLD) write linguistic material more slowly than children with typically developing (TD). However, it is not known whether the same difficulties are present when they write numbers. The goal of the present study was to fill this gap and to compare TD's and SLD's speed in writing numbers both in words and in digits.
View Article and Find Full Text PDFCarbohydr Polym
May 2024
National Engineering Laboratory for Clean Technology of Leather Manufacture, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, PR China; High-Tech Organic Fibers Key Laboratory of Sichuan Province, Chengdu 610036, PR China. Electronic address:
Conductive hydrogel-based sensors offer diverse applications in artificial intelligence, wearable electronic devices and character recognition management. However, it remains a significant challenge to maintain their satisfactory performances under extreme climatic conditions. Herein, a stretchable, self-adhesive, self-healing and environmentally stable conductive hydrogel was developed through free radical polymerization of hydroxyethyl acrylate (HEA) and poly(ethylene glycol) methacrylate (PEG) as the skeleton, followed by the incorporation of polyaniline-coated cellulose nanocrystal (CNC@PANI) as the conductive and reinforced nanofiller.
View Article and Find Full Text PDFCorpus Linguist Linguist Theory
February 2024
Department of English Language and Linguistics, University of Birmingham, Birmingham, United Kingdom.
This paper describes patterns of number use in spoken and written English and the main factors that contribute to these patterns. We analysed more than 1.7 million occurrences of numbers between 0 and a billion in the British National Corpus, including conversational speech, presentational speech (e.
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