Students' personal, emotional, and psychological traits are perceived to be highly influential in their academic engagement; therefore, many investigations have been conducted into the role of students' characteristics in their level of engagement. Yet, the role of L2 enjoyment and academic motivation as two instances of students' emotional traits was disregarded. To narrow this gap, this article aimed to assess the effects of these two constructs on Chinese EFL students' academic engagement. To accomplish this, three pre-designed scales were virtually administered to 490 Chinese students. Using the Spearman Rho test, significant correlations were discovered among the variables. Further, through regression analysis, the predictive power of dependent variables was also assessed. Chinese students' academic engagement was proved to be favorably predicted by L2 enjoyment and academic motivation. The implications and limitations are finally discussed.
BRI and International Cooperation in Industrial Capacity: Country Cooperation Guide provides research reports on international production capacity and equipment-manufacturing cooperation of major countries, offering a better understanding of the destination country's information and its market trend, facilitating decision-making for both domestic and foreign investors.
Merging multi-exposure images is a common approach for obtaining high dynamic range (HDR) images, with the primary challenge being the avoidance of ghosting artifacts in dynamic scenes. Recent methods have proposed using deep neural networks for deghosting. However, the methods typically rely on sufficient data with HDR ground-truths, which are difficult and costly to collect. In this work, to eliminate the need for labeled data, we propose SelfHDR, a self-supervised HDR reconstruction method that only requires dynamic multi-exposure images during training. Specifically, SelfHDR learns a reconstruction network under the supervision of two complementary components, which can be constructed from multi-exposure images and focus on HDR color as well as structure, respectively. The color component is estimated from aligned multi-exposure images, while the structure one is generated through a structure-focused network that is supervised by the color component and an input reference (\eg, medium-exposure) image. During testing, the learned reconstruction network is directly deployed to predict an HDR image. Experiments on real-world images demonstrate our SelfHDR achieves superior results against the state-of-the-art self-supervised methods, and comparable performance to supervised ones. Codes are available at https://github.com/cszhilu1998/SelfHDR
Numerous studies have already indicated the negative relationship between the number of siblings and educational attainment,but they always neglected the role of gender due to their lack of background knowledge of the Chinese society.In this paper,educational attainment is treated as a derivative of family resource transfer.With analyses of data from the investigation into urban youths in 12 Chinese cities in 2007,this study found empirical evidence to support that(1) family size has negative influence on children's educational attainment with those without siblings receiving more education than those with siblings;(2) among the youths with siblings,family size does have an influence,but mainly on girls;and(3) there was no gender difference in educational attainment among those who are the only children in their families.
Weight-related school bullying and victimization have become important public health issues among adolescents around the world. This study aims to examine gender differences in the effects of Body Mass Index (BMI) on school bullying and victimization among secondary school students. This study conducted a survey among 2849 adolescents—1393 girls (48.9%) and 1456 boys (51.1%). The students were between 12 and 18 years of age and were recruited from ten secondary schools in 2019 in Suqian City in China. The study showed that overweight boys were more likely to bully others and be bullied by peers compared to normal weight boys. In contrast, overweight girls reported less bullying than normal-weight girls. No significant relationship was found between overweight and victimization among female students. The implications for comprehensive sexuality education practices are also discussed.
The spectral analysis of the Doppler ultrasound signal based on the spectrogram has been widely used in medicine for the assessment of blood flow in vessels. The additional frequency components arising from noise produces an adverse effect on the subjective study of the spectrogram and its quantitative analysis. A novel approach using the adapted local cosine transform, combined with the non-negative garrote thresholding method, is proposed to remove noise from the quadrature Doppler ultrasound signal. At first, the directional information is extracted from the quadrature signal. Then the denoising method based on the adapted local cosine transform is performed on the forward and reverse flow signals, respectively. At last, the estimated signal is reconstructed from the denoised signals using Hilbert transform. In the simulation study, the estimation precision of the mean frequency waveform and the spectral width waveform are studied for the signal after denoising. The simulation results for the simulated Doppler ultrasound signals have shown that this approach is superior to the one based on the wavelet transform, especially under low SNR conditions.
Due to changes in family planning policy, families with multiple children are re-emerging in China. This article looked at parental stress and parenting practices in Chinese families with one child, two children and three children, and explored to what extent, controlling for socioeconomic factors, the number of children and parenting practices influenced parental stress. Using a sample from southern China, we measured parental stress and parenting practices among parents who have at least one child in primary school. Results showed that having multiple children increased parental pressure, and this was partially caused by a change in parenting practices: compared with their counterparts with only one child, parents with multiple children tended to use less positive encouragement but more coercive parenting. Findings suggested that in the context of low fertility, ‘parenting’ is more important than ‘fertility’. Effective parenting practices help reduce pressure, which in turn reduce a family’s fear of childbearing.
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