The Shanghai alliance of multilingual researchers: Fudan University, Tongji University, Shanghai University of Finance and Economics, and Shanghai International Studies University, China

Zheng, Yongyan; Shen, Qi; Zhao, Ke; Li, Citing

doi:10.1017/s0261444821000379

Cited by 34 publications

(44 citation statements)

References 401 publications

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“…Figure 6 shows that for a fixed confining pressure, the samples after different numbers of dry-wet cycles showed evident compaction, elastic, and plastic stages before reaching peak strength. The shapes of the curves essentially conform to the three stages of the typical rock stress-strain curve [31]. At a fixed confining pressure, the stress-strain curve gradually flattened down with increasing numbers of 6 Geofluids dry-wet cycles and the compaction stage gradually became apparent.…”

Section: Sample Deformation Characteristicssupporting

confidence: 60%

Effect of Dry–Wet Cycling on the Degradation Characteristics and Mechanisms of Red Sandstone

et al. 2023

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The physical and mechanical parameters and degradation mechanisms of red sandstone in the Mount Wuyi scenic area were studied under the action of dry–wet cycles. Dry–wet cycle, acoustic wave velocity, water saturation rate, and triaxial compression tests were conducted, aided by scanning electron microscopy and X-ray diffraction testing techniques. The study’s results show that the dry–wet cycle effect on red sandstone is a major factor in the degradation of its physical and mechanical parameters and that its microstructural characteristics are significantly affected. The P-wave velocity, peak strength, elastic modulus, internal friction angle, and cohesion decreased, the water content and peak strain increased, and the elastic modulus was the most sensitive to dry–wet cycles. A dry–wet cycle’s action severely damages the microstructural integrity of the red sandstone. After 15 dry–wet cycles, the interstitial fillings between the skeletal grains are dissolved over a large area, microfractures are interwoven throughout, and the structure is severely fragmented. The microstructural degradation of the red sandstone by dry–wet cycles mainly manifests in the dissolution of the interstitial filler, and the relative content of calcite as an interstitial filler is reduced by 46.6% after 15 dry–wet cycles. The proposed strength decay prediction equation has reference significance for the strength prediction of the red sand conglomerate in the project. This study’s results can provide theoretical support for the landscape protection of rock masses and the prevention of engineering geological hazards.

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Section: Sample Deformation Characteristicssupporting

confidence: 60%

Effect of Dry–Wet Cycling on the Degradation Characteristics and Mechanisms of Red Sandstone

et al. 2023

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“…The time interval between the two questionnaires should be as long as the respondents cannot remember the results of the last answer and as short as the dietary habits of the respondents do not change during the two questionnaires. Some researchers believe that the interval of half a year to one year is better [ 42 ]. Therefore, the time interval between the two dietary surveys in this study is 6 months, and SQFFQ1 and SQFFQ2 are obtained, respectively.…”

Section: Discussionmentioning

confidence: 99%

Reproducibility and Validity of a Semi-Quantitative Food Frequency Questionnaire for Assessing Dietary Intake of Vegetarians and Omnivores in Harbin, China

Sun

Wang²,

et al. 2022

Nutrients

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This study aims to evaluate the reproducibility and validity of a semi-quantitative food frequency questionnaire (SQFFQ) developed for vegetarians and omnivores in Harbin, China. Participants (36 vegetarians and 64 omnivores) administered SQFFQ at baseline (SQFFQ1) and six months later (SQFFQ2) to assess the reproducibility. The 24 h recalls (24 HRs) for three consecutive days were completed between the administrations of two SQFFQs to determine the validity. For reproducibility, Pearson correlation coefficients between SQFFQ1 and SQFFQ2 for vegetarians and omnivores were 0.45~0.88 and 0.44~0.84, respectively. For validity, unadjusted Pearson correlation coefficients were 0.46~0.83 with an average of 0.63 and 0.43~0.86 with an average of 0.61, respectively; energy-adjusted Pearson correlation coefficients were 0.43~0.82 with an average of 0.61 and 0.40~0.85 with an average of 0.59, respectively. Majority of the correlation coefficients for food groups and macronutrients decreased or remained unchanged after energy adjustment. Furthermore, all correlations were statistically significant (p < 0.05). Bland–Altman plots also showed reasonably acceptable agreement between the two methods. In conclusion, the SQFFQ developed in this study has reasonably acceptable reproducibility and validity.

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“…A questionnaire was distributed among the 43 EFL students in Christine's academic writing course (17-week), aiming to track the development of learners' changes before and after taking Christine's course. The questionnaire is modified on the basis of Zheng ( 2021 ) work and contains two parts of academic knowledge (10 questions) and academic genre awareness (24 questions).…”

Section: Methodsmentioning

confidence: 99%

Exploring an EAP writing teacher's adaptive expertise and adaptive teaching practices from a CDST perspective

Xiang

Chang²,

Yu³

2022

Front. Psychol.

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Teachers' adaptive expertise (TAE) has received increasing attention in the current English as foreign language (EFL) teaching field, however, it has seldom been examined with adaptive practices by teachers in on-going classes among existing literature. Adopting a mixed-method design with data triangulation, this study was conducted to explore the complexity of teachers' adaptive expertise (TAE) and adaptive teaching practices that an EAP writing teacher demonstrated in academic writing courses, from a Complex Dynamic Systems Theory (CDST) perspective. Semi-structured interviews, classroom observations, and questionnaires were arranged to collect qualitative and quantitative data from an EAP writing teacher and 43 EFL learners in a Chinese university. Thematic analysis and SPSS were mainly used in the current work for data analysis. Our findings confirmed (1) the complexity of TAE and ATP with specific features of non-linearity, interconnectedness, and self-organization, which are classic CDST characteristics; (2) the TAE evolved with meta-cognitive, cognitive, affective and social components that are intertwined and contributed to the teacher's adaptive teaching practices (ATP) in her academic writing course; (3) being facilitated by TAE, the teacher's adaptive teaching practices significantly enhanced EFL learners, learning motivation of academic writing and their learning efficiency. Findings of the current work pave the way for future studies in researching TAE and ATP with a thorough consideration of language teachers, students and contexts from the CDST perspective. Moreover, pedagogical contributions are highlighted through the detailed examinations of the EAP writing teacher's ATP, including the class design, teaching plans, and methods, which would be fruitful for the development of tertiary EAP writing research.

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The Shanghai alliance of multilingual researchers: Fudan University, Tongji University, Shanghai University of Finance and Economics, and Shanghai International Studies University, China

Cited by 34 publications

References 401 publications

Effect of Dry–Wet Cycling on the Degradation Characteristics and Mechanisms of Red Sandstone

Effect of Dry–Wet Cycling on the Degradation Characteristics and Mechanisms of Red Sandstone

Reproducibility and Validity of a Semi-Quantitative Food Frequency Questionnaire for Assessing Dietary Intake of Vegetarians and Omnivores in Harbin, China

Exploring an EAP writing teacher's adaptive expertise and adaptive teaching practices from a CDST perspective

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