The Reflection and Countermeasures of University Sports Injury Accident

Sports injury accident is a common phenomenon in university physical education and extracurricular activities. In the proceedings of such cases, the court often makes a judgment on the principle of equitable liability in the case of no fault of both parties and these judgments lead to the heavy burden of universities, and block the development of sports activities. From the perspective of the legal relationship between students and universities, the nature of university sports injury accidents and the liability of tort liability, this paper insists on the application of fault responsibility principle in such injuries, clears the responsibility of all parties, and puts forward effective measures to reduce the occurrence of such accidents

Automated Segmentation of Pulmonary Lobes using Coordination-Guided Deep Neural Networks

The identification of pulmonary lobes is of great importance in disease diagnosis and treatment. A few lung diseases have regional disorders at lobar level. Thus, an accurate segmentation of pulmonary lobes is necessary. In this work, we propose an automated segmentation of pulmonary lobes using coordination-guided deep neural networks from chest CT images. We first employ an automated lung segmentation to extract the lung area from CT image, then exploit volumetric convolutional neural network (V-net) for segmenting the pulmonary lobes. To reduce the misclassification of different lobes, we therefore adopt coordination-guided convolutional layers (CoordConvs) that generate additional feature maps of the positional information of pulmonary lobes. The proposed model is trained and evaluated on a few publicly available datasets and has achieved the state-of-the-art accuracy with a mean Dice coefficient index of 0.947 $\pm$ 0.044.Comment: ISBI 2019 (Oral

Causality-inspired Single-source Domain Generalization for Medical Image Segmentation

Deep learning models usually suffer from domain shift issues, where models trained on one source domain do not generalize well to other unseen domains. In this work, we investigate the single-source domain generalization problem: training a deep network that is robust to unseen domains, under the condition that training data is only available from one source domain, which is common in medical imaging applications. We tackle this problem in the context of cross-domain medical image segmentation. Under this scenario, domain shifts are mainly caused by different acquisition processes. We propose a simple causality-inspired data augmentation approach to expose a segmentation model to synthesized domain-shifted training examples. Specifically, 1) to make the deep model robust to discrepancies in image intensities and textures, we employ a family of randomly-weighted shallow networks. They augment training images using diverse appearance transformations. 2) Further we show that spurious correlations among objects in an image are detrimental to domain robustness. These correlations might be taken by the network as domain-specific clues for making predictions, and they may break on unseen domains. We remove these spurious correlations via causal intervention. This is achieved by resampling the appearances of potentially correlated objects independently. The proposed approach is validated on three cross-domain segmentation tasks: cross-modality (CT-MRI) abdominal image segmentation, cross-sequence (bSSFP-LGE) cardiac MRI segmentation, and cross-center prostate MRI segmentation. The proposed approach yields consistent performance gains compared with competitive methods when tested on unseen domains.Comment: Preprin

The impact of ESG information disclosure quality on firm value

With green development advocated globally, China has firstly proposed a goal of carbon neutrality and carbon peak. Based on sustainable development theory, signal transmission theory, information asymmetry theory and stakeholder theory, this paper had used the data of 638 A-share listed companies in China from 2018 to 2020 to empirically analysed the relationship between ESG information disclosure quality and firm value. The study had concluded that the ESG quality is positively correlated with firm value. Although the impact of environment (E) and society (S) on firm value is greater than that of governance (G), the improvement of ESG split indicators will increase firm value. Finally, this paper had put forward suggestions for the firms and the government respectively