Chang Xu
Biographic Data
| ID | 3585435 |
|---|---|
| NAME | Chang Xu |
| GIVEN NAMES | Chang |
| FAMILY NAME | Xu |
| SIGNATURE | XU C |
| AFFILIATIONS | Carleton University |
| ORCID | 0000-0002-0166-3143 |
| VERIFIED | Yes |
| TOTAL WORKS | 51 |
| TOTAL CITATIONS | 46 |
| AUTHOR COUNT | 51 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2013 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 4 |
Persistent efficiency-equity mismatches in EV infrastructure planning: A multi-scale spatial consistency analysis
Evaluating the quality and reliability of Kawasaki disease–related content on TikTok and Bilibili: A cross-sectional study
Background: As public interest in health and immunology grows, short video platforms have become an increasingly important source of medical information. Kawasaki disease, a pediatric immune-mediated vasculitis with potential cardiovascular complications, has attracted substantial attention; however, the accuracy and quality of related content on these platforms remain unexamined. This study aimed to evaluate the overall quality of Kawasaki disea…
Climate-driven changes in city-scale building energy demand under urban-adjusted future climate scenarios
Global, regional, and national burden of Dalys attributable to occupational risks, 1990–2021: Trends and projections to 2030
Can rural-urban migration benefit sustainable agriculture with large-scale farming
Achieving sustainable agricultural development is essential for ensuring stable global food supplies. Rural-urban migration, as a widespread socioeconomic phenomenon, introduces complexities and uncertainties to sustainable agricultural practices. This study constructs an analytical framework linking migration, large-scale farming, and sustainable agriculture, leveraging empirical evidence from 37,648 village-level samples in China. The findings …
Market reactions to the regulation of corporate digital responsibility: Evidence from the tourism industry
Unveiling heterogeneous gaze patterns in autistic children undergoing rTMS: Insights from latent profile analysis
ASD children exhibit heterogeneous emotional face gaze patterns. Findings highlight the need for personalized rTMS interventions, especially for those with higher CARS scores and increased emotional face fixation-at elevated intolerance risk
Independent and combined relationships between nighttime light exposure, air pollution, PM2.5 constituents, greenness and diabetes or high blood sugar: A national prospective cohort study
NL and air pollution are independent risk factors for D/HBS, with synergistic effects exacerbating disease risk. NDVI confers protection by reducing pollutant exposure. Comprehensive strategies targeting light pollution control, air quality improvement, and optimized green space planning are imperative. Future studies should integrate individualized exposure assessments and elucidate causal environmental-metabolic pathways
Independent and combined relationships between light at night, air pollutants, PM2.5 components and risk of cardiovascular-kidney-metabolic syndrome: A cohort study
This study provided evidence that LAN, air pollutants, and PM 2.5 components were positively associated with CKM syndrome, and significant synergistic and joint effects existed, increasing the risk of CKM syndrome in older adults. These results highlighted the urgency of comprehensive environmental intervention measures and emphasized the necessity of incorporating multi-factor joint exposure assessment in future CKM syndrome research
A longitudinal investigation of the codevelopment and bidirectional relations among whole number arithmetic and conceptual and procedural fraction knowledge
How do conceptual and procedural fraction knowledge influence the development of each other over time? Is their pattern of development a reflection of instruction? In the present study we conducted a four-wave longitudinal investigation of the co- and bidirectional development of whole number arithmetic, and conceptual and procedural fraction knowledge during a critical phase of fraction learning. Chinese students (N = 1,055, Mage = 9.8, SD = 0.7…
Effects of menstrual cycle phases on approach-avoidance behaviors in women: A behavioral and event-related potentials study
Menstrual cycle influences approach-avoidance behavior in females as a result of fluctuations in sex hormone levels, but the underlying neuropsychological processes are unknown. Therefore, we collected the approach-avoidance behavior and electroencephalogram (EEG) data of 27 naturally cycling women during early follicular, late follicular, and mid-luteal phases, focusing on the effects of estradiol and progesterone levels on women's approach-avoi…
Breaking up prolonged sedentary behavior to improve cardiometabolic health (BREAK2): Protocol for a dose-finding adaptive randomization trial
This trial has been registered with the Clinical Trials Registry maintained by the National Library of Medicine at the National Institutes of Health on April 29, 2022. The registration ID is NCT05353322
User-generated content-driven smart tourism: System review and future prospects
Capturing the interconnected development of whole number arithmetic operations using a network approach
We used network analysis to examine the structure and development of arithmetic fluency in Chinese students from Grades 3 to 6-a critical period during which fluency across the four operations becomes increasingly integrated. In two preregistered studies, students completed timed fluency tasks in addition, subtraction, multiplication, and division. In Study 1, we compared network structures in Grade 3 ( N = 1,072; M age = 9.1 years) and Grade 6 (…
Ingot Medicines, Duanwu Rituals, and Bodily Care in the Eighteenth-Century Qing Imperium
This article analyzes the eighteenth-century Qing court's transformation of ingot medicine (Ch. dingzi yao or yaoding ; Ma. dingdzi okto ) into empire-wide gifts for the Duanwu Festival. While earlier periods used medical ingots on a more limited scale, the Yongzheng Emperor institutionalized their production and distribution, elevating them into objects imbued with both therapeutic and political significance. Drawing on records from the Imperial…
An integrated strategy for rapid discovery and identification of the potential effective fragments of polysaccharides from Saposhnikoviae Radix
Processing Instruction Versus Traditional Instruction: The Transfer-of-Training Effects on Chinese EFL Learners
This research investigated the impact of processing instruction (PI) on the acquisition of the English third-person singular present tense by Chinese English-as-a-foreign-language (EFL) learners and whether this effect would extend to the acquisition of other language components. This study featured the pretest-immediate-posttest design and participants were required to participate in all tests (pretest, immediate posttest, delayed posttest). Two…
Affective and cognitive factors associated with Chinese and Italian children’s arithmetic performance
Chinese children outperformed their Italian peers in the exact arithmetic task, likely due to the greater emphasis on arithmetic fluency in Chinese mathematics education, both in schools and at home. They also had a slight advantage than Italian peers in the arithmetic estimation task. The unique link between updating and arithmetic estimation found in Chinese children but not Italian children suggests that, although arithmetic estimation is not …
Seasonal prediction of North Atlantic sea surface temperature anomalies using the LSTM machine learning method
Sea surface temperature anomalies (SSTAs) over the North Atlantic (NA) have a significant impact on the weather and climate in both local and remote regions. This study first evaluated the seasonal prediction skill of NA SSTA using the North American multi-model ensemble and found that its performance is limited across various regions and seasons. Therefore, this study constructs models based on the long short-term memory (LSTM) network machine l…
Influence of eye-related behavior on myopia among junior middle school students under the background of double reduction during the Covid-19 pandemic
The dual reduction policy has a positive effect on improving unhealthy eye-related behaviors, and the prevention and control of myopia through the use of different combinations of eye-related behaviors are heterogeneous among junior middle school students. In the post-COVID-19 period, we should continue to implement a double reduction policy and formulate targeted eye-related behavior strategies to provide an important reference for the preventio…
Terminus: Exploring Alternative Realities through Digital Worlds and Science Fiction, Exhibition at the Dowse Art Museum, November 14, 2020, to March 21, 2021
Terminus is a collaborative exhibition between Jess Johnson, a New Zealand–born artist based in New York, and Simon Ward, a Melbourne-based sound artist and composer. It was co-exhibited at the Dowse Art Museum in Wellington, New Zealand, between November 2020 and March 2021, and subsequently at the Wagga Wagga Art Gallery in New South Wales, Australia, from December 2022 to February 2023. The next showing took place at the Hyphen Wodonga Library…
Growing Software: Objective, Methodology, and Technology
Greetings and welcome to the third issue of IEEE TRANSACTIONS ON COMPUTATIONAL SOCIAL SYSTEMS (TCSS) for 2023. The authors are delighted to share some exciting news with our esteemed readership
Relations between Math Achievement, Math Anxiety, and the Quality of Parent–Child Interactions While Solving Math Problems
In the current study, we used a multi-method approach to understand the quality of math homework-helping interactions between parents and their children and how parents’ and children’s own math achievement and math anxiety relate to the quality of the interaction. Forty Canadian parents and their children (ages 10–12 years; grades 5 to 7) completed self-report measures of math and general anxiety. Parents and children completed standardized asses…
Requesting a commitment in school teachers to teach in unprecedented ways: The mediating role of teacher agency
The necessity for the development and enhancement of teacher commitment to satisfying students' learning needs in response to the COVID crisis is increasingly highlighted. It is not known, however, how to increase commitment in schoolteachers to boost online teaching in light of the fact that they, too, are struggling to cope with the rapid, unexpected change. A total of 601 teachers from primary and secondary schools across China participated in…
Asserting Accountability to Address Diversity: Report Card as a System of Measurement
Problem: To the best of our knowledge, there are no standard accountability measures for diversity efforts at the departmental level. Therefore, the purpose of this study is to evaluate a multiprong report card as a structure for evaluation, tracking, and reporting as well as to examine any relationships between expenditures and outcomes. Approach: We instituted an intervention that offered leadership a report card of metrics related to diversity…
Expanding the Home Numeracy Model to Chilean children: Relations among parental expectations, attitudes, activities, and children’s mathematical outcomes
Training young children on sequential relations among numbers and spatial decomposition: Differential transfer to number line and mental transformation tasks
Are there differential benefits of training sequential number knowledge versus spatial skills for children's numerical and spatial performance? Three- to five-year-old children (N = 84) participated in 1 session of either sequential training (e.g., what comes before and after the number 5?) or non-numerical spatial training (i.e., decomposition of shapes). Children who received sequential training showed near transfer to a number ordering task an…
The impact of institutions on forestland transfer rents: The case of Zhejiang province in China
Responsive home numeracy as children progress from kindergarten through Grade 1
Does A Medical Consortium Influence Health Outcomes of Hospitalized Cancer Patients? An Integrated Care Model in Shanxi, China
The medical consortium provides an effective strategy to improve the outcomes of cancer patients in Shanxi, China. The partnerships between top-tier hospitals and grassroots medical services bridge the gap in resources and plays a critical role in the quality of care in China
Individual differences in the development of children’s arithmetic fluency from grades 2 to 3
In the present research, we provide empirical evidence for the process of symbolic integration of number associations, focusing on the development of simple addition (e.g., 5 + 3 = 8), subtraction (e.g., 5 - 3 = 2), and multiplication (e.g., 5 × 3 = 15). Canadian children were assessed twice, in Grade 2 and Grade 3 (N = 244; 55% girls). All families were English-speaking, and parent education levels ranged from high school to postgraduate, with a…
User-generated content-driven smart tourism: System review and future prospects
Home mathematics environment and math performance of Chilean students in kindergarten and Grades 1 to 3
Managing a Multicurrency System in Tang China: The View from the Centre
When the Tang dynasty took power in 618, it inherited the multicurrency system of earlier dynasties. The zuyongdiao tax system, in effect from the start of the dynasty, required each taxpayer to submit taxes in grain, labour and cloth. At the same time, the government also minted coins, which constituted some 10 per cent of the total money supply. A persistent shortage of copper limited the number of minted coins the government could issue. Accor…
Managing a Multicurrency System in Tang China: The View from the Centre
When the Tang dynasty took power in 618, it inherited the multicurrency system of earlier dynasties. The zuyongdiao tax system, in effect from the start of the dynasty, required each taxpayer to submit taxes in grain, labour and cloth. At the same time, the government also minted coins, which constituted some 10 per cent of the total money supply. A persistent shortage of copper limited the number of minted coins the government could issue. Accor…
Effect of aerobic exercise and low carbohydrate diet on pre-diabetic non-alcoholic fatty liver disease in postmenopausal women and middle aged men – the role of gut microbiota composition: Study proto…
Current Controlled Trials: ISRCTN42622771
Training young children on sequential relations among numbers and spatial decomposition: Differential transfer to number line and mental transformation tasks
Are there differential benefits of training sequential number knowledge versus spatial skills for children's numerical and spatial performance? Three- to five-year-old children (N = 84) participated in 1 session of either sequential training (e.g., what comes before and after the number 5?) or non-numerical spatial training (i.e., decomposition of shapes). Children who received sequential training showed near transfer to a number ordering task an…
Does A Medical Consortium Influence Health Outcomes of Hospitalized Cancer Patients? An Integrated Care Model in Shanxi, China
The medical consortium provides an effective strategy to improve the outcomes of cancer patients in Shanxi, China. The partnerships between top-tier hospitals and grassroots medical services bridge the gap in resources and plays a critical role in the quality of care in China
Expanding the Home Numeracy Model to Chilean children: Relations among parental expectations, attitudes, activities, and children’s mathematical outcomes
Perfect vivianite crystals excavated from a highly sealed ancient tumulus in Jing'an County, Jiangxi Province, China
Large amounts of perfect crystals were excavated from ancient coffins dating 2510 (±50) bp , in Jing'an County, Jiangxi Province, China. The coffins were wrapped by multiple bamboo mats and sealed highly by waterproof soil layers. In this study, crystals, wooden coffins, surrounding water and clay materials of several buried wooden coffins were subject to various analyses, and the crystals were identified to be vivianite by single crystal X‐ray d…
Children’s Home Numeracy Environment Predicts Growth of their Early Mathematical Skills in Kindergarten
This study investigated the longitudinal associations between children’s early mathematics and their home numeracy environment (HNE). Chilean children from families who varied widely in socioeconomic status were assessed at the beginning and end of prekindergarten in 2016 (N = 419, Mage = 4:7 [years:months]), and at the end of kindergarten in 2017 (N = 368, Mage = 5:10). Children whose parents provided frequent operational numeracy activities (e.…
Study on environmental Kuznets Curve for noise pollution: A case of 111 Chinese cities
The impact of institutions on forestland transfer rents: The case of Zhejiang province in China
Responsive home numeracy as children progress from kindergarten through Grade 1
Exploring App-Based Taxi Movement Patterns from Large-Scale Geolocation Data
This study is designed to leverage ubiquitous mobile computing techniques on exploring app-based taxi movement patterns in large cities. To study patterns at different scales, we comprehensively explore both occupied and unoccupied vehicle movement characteristics through not only individual trips but also their aggregations. Moran’s I and its variations are applied to explore spatial autocorrelations among different rides. PageRank centrality is…
Children’s Knowledge of Symbolic Number in Grades 1 and 2: Integration of Associations
How do children develop associations among number symbols? For Grade 1 children (n = 66, M = 78 months), sequence knowledge (i.e., identify missing numbers) and number comparison (i.e., choose larger number) predicted addition, both concurrently and indirectly at the end of Grade 1. Number ordering (i.e., touch numbers in order) did not predict addition but was predicted by number comparison, suggesting that magnitude associations underlie orderi…
The Impact of FDI on Urban PM2.5 Pollution in China: The Mediating Effect of Industrial Structure Transformation
With the rapid growth of foreign direct investment (FDI), PM 2.5 pollution in Chinese cities is increasing. Based on panel data for 271 Chinese cities from 2003 to 2016, this paper uses the dynamic spatial fixed-effects Durbin model to analyze the correlation between FDI and PM 2.5 pollution and the effect of FDI on urban PM 2.5 concentrations, as mediated by industrial structure transformation, which is clarified using Stata/SE 16.0. The results…
Does Environmental Regulation Improve the Green Total Factor Productivity of Chinese Cities? A Threshold Effect Analysis Based on the Economic Development Level
Improvement of green total factor productivity (GTFP) through environmental regulation is of great practical significance in promoting the high-quality development of urban economies. Based on panel data for 163 cities in China from 2003 to 2016, five indicators were selected to quantify the effects of environmental regulation: the SO 2 removal rate, smoke and dust removal rate, solid waste utilization rate, domestic sewage treatment rate, and wa…
Home mathematics environment and math performance of Chilean students in kindergarten and Grades 1 to 3
Individual differences in the development of children’s arithmetic fluency from grades 2 to 3
In the present research, we provide empirical evidence for the process of symbolic integration of number associations, focusing on the development of simple addition (e.g., 5 + 3 = 8), subtraction (e.g., 5 - 3 = 2), and multiplication (e.g., 5 × 3 = 15). Canadian children were assessed twice, in Grade 2 and Grade 3 (N = 244; 55% girls). All families were English-speaking, and parent education levels ranged from high school to postgraduate, with a…
Relations between the Home Learning Environment and the Literacy and Mathematics Skills of Eight-Year-Old Canadian Children
The home learning environment includes parental activities, attitudes, affect, knowledge, and resources devoted to supporting children’s development, including literacy and mathematics skills. These factors are related to the academic performance of preschool children (aged 3 to 6 years), before formal schooling and possibly beyond. In the present research, we examined the home learning environment of Canadian families as reported by either the m…
The role of mathematical language skills in arithmetic fluency and word-problem solving for first- and second-language learners
Language skills play an important role in mathematics development. Students (7 to 10 years of age) learning school mathematics either in the same language used at home (first-language learners; n = 103) or in a different language (second-language learners; n = 57) participated in the study. Relations among cognitive skills (i.e., receptive vocabulary, working memory, quantitative skills), domain-specific language skills (i.e., mathematical vocabu…
Pathways to learning mathematics for students in French-immersion and English-instruction programs
Canadian students enrolled in either French-immersion or English-instruction programs were followed from Grades 2 to 3 (Mage = 7.8 years to 8.9 years; N = 244; 55% girls). In each grade, students completed two mathematical tasks that required oral language processing (i.e., word-problem solving and number transcoding from dictation) and two that did not (i.e., arithmetic fluency and number line estimation). Students in both English-instruction (n…
A Remark of Feminism -- Based on the Analysis of Film and TV Works in Different Times
With the development of society, the power of women is increasing. However, they are still defined as weak and not free group and face many social problems. Equality of women's rights is a pillar of social development, which is related to everyone's life and the healthy development of society. This paper aims to sort out the development history of women's rights movement through film and television works, show the changes of women's status, and d…
A Review of the Hot Topics in 20 Years of Collating and Researching the Documents from the Three Kingdoms State of Wu Excavated at Zoumalou
In 1996, a batch of slips (jian 簡 ) and tablets ( du 牘 ) from the Three Kingdoms state of Sun Wu was excavated at Zoumalou, Changsha. It is the largest batch of slips and tablets ever discovered in China. As of 2016, the cleaning, protection and study of the Zoumalou materials has been going on for 20 years. Both the publication of the materials and research on their contents have yielded fruitful results. This paper does not seek to comprehensiv…
Effects of designating non-public forests for ecological purposes on farmer's forestland investment: A quasi-experiment in southern China
Fraction mapping and fraction comparison skills among grade 4 Chinese students: An error analysis
BACKGROUND: Mapping fraction symbols to magnitudes is easier for students to master than comparing fraction magnitudes. Fraction mapping assesses students' understanding of part-whole interpretations of fractions; fractions represent the parts of an object or set of objects. Fraction comparison assesses students' understanding of measurement interpretations of fractions; a fraction is a single numerical quantity, not a combination of two whole nu…
Terminus: Exploring Alternative Realities through Digital Worlds and Science Fiction, Exhibition at the Dowse Art Museum, November 14, 2020, to March 21, 2021
Terminus is a collaborative exhibition between Jess Johnson, a New Zealand–born artist based in New York, and Simon Ward, a Melbourne-based sound artist and composer. It was co-exhibited at the Dowse Art Museum in Wellington, New Zealand, between November 2020 and March 2021, and subsequently at the Wagga Wagga Art Gallery in New South Wales, Australia, from December 2022 to February 2023. The next showing took place at the Hyphen Wodonga Library…
Growing Software: Objective, Methodology, and Technology
Greetings and welcome to the third issue of IEEE TRANSACTIONS ON COMPUTATIONAL SOCIAL SYSTEMS (TCSS) for 2023. The authors are delighted to share some exciting news with our esteemed readership
Psychology (19 works) · Mathematics education (14 works) · Cognitive and developmental aspects of mathematical skills (13 works) · Computer Science (13 works) · Medicine (13 works) · Mathematics (11 works) · Mathematics Education and Teaching Techniques (11 works) · Developmental psychology (10 works) · Business (8 works) · Fluency (8 works)