The antifloating property of underground structures in areas with high underground water levels is a key design aspect. Evaluating the buoyancy forces acting on underground structures is complicated, particularly in the presence of confined water beneath the structures. Herein, the effects of the permeability coefficient of layered soil, hydraulic gradient, and embedment depth of the aquiclude on the buoyancy force acting on underground structures are investigated through three model tests: calibration of the test system, buoyancy force acting on a structure (...) located in homogeneous soil considering vertical direction seepage, and buoyancy force acting on a structure located in layered soil considering vertical seepage of confined water. The results show that the pore pressure along the structure and the buoyancy force acting on the underground structure considering seepage are greater than those obtained under hydrostatic conditions. The raising ratios of the pore pressure and buoyancy force are equal to the vertical hydraulic gradient when seepage occurs in homogeneous soil. In the presence of confined water, the raising ratio is significantly greater than the hydraulic gradient. In the cases studied herein, the raising ratio is approximately twice the hydraulic gradient. Simplified equations are proposed to calculate the buoyancy force acting on underground structures considering the vertical seepage of confined water. Finally, a finite element analysis is carried out to verify the conclusions obtained from the model test and the rationality of the proposed equations. (shrink)

1. Xin yi shu chuang zuo lun, Xin yi shu lun ji -- 2. Mian xiang sheng huo, Lun yi shu de ji qiao -- 3. Yi yi dang shi -- 4. Xi wen le jian -- 5. Ge er bu ge -- 6. Lun Feng jie -- 7. Kai xin yue shi -- 8. Bu dao ding dian, Shen mei de min gan -- 9. Zai zai tan suo -- 10. Liao ran yu xin -- 11. Shen mei tan (...) -- 12. Si zeng xiang shi, Yi shen er ren -- 13. Shen mei xin tai -- 14. Hui jian zi ji -- 15. Diao su diao su -- 16. "Fu huo" de fu huo -- 17. Dong fang ji bai -- 18. Shen yu wu you -- 19. Tu na ying hua -- 20. Qu yu wu xie -- 21. Shu xin, ti ci xuan -- 22. Duan jian can pian. (shrink)

Ben shu wan zheng di ti xian le yang ming xin xue"xin ji li","zhi xing he yi","zhi liang zhi"san da ming ti,Sheng dong di ji zai le yang ming xin xue li lun zai yang ming shi sheng zhi jian de gou jian he chuan bo guo cheng,Jiao wei ji zhong di zhan xian he hui ji le yang ming de xin xue si xiang ti xi,Dui yu yang ming hou xue de fa zhan chan sheng le zhi jie er (...) shen yuan de ying xiang. (shrink)

Ben shu gong you ba jiang zu cheng, fen bie shi sheng ren bi ke xue er zhi, Wang Yangming de xin xue ti xi, shi gong yu bing xue, wen xue si xiang yu shi wen chuang zuo, jiao yu si xiang yu shi jian, Yangming hou xue, Yangming xue zai jin xian dai de ying xiang, Yangming wen hua yu Guizhou lü you. Mei ge lun ti lun shu ji zhong, shen du shi zhong, xu shu xing yu (...) yan tong su liu chang, gu shi xing qiang, hen shi he da zhong du zhe yue du. wei qi fa du zhe si kao, zeng qiang yue du xiao guo, zai mei yi jiang zhi hou shi liang she zhi le yi xie ming ci jie shi, jian da tao lun ti. ling pei he xiang guan wen zi, she zhi le yi xie tu pian, bei ke he Yangming shu fa zuo pin deng, ju you ji jia de guan shang xing. (shrink)

Ben shu jie shao le liang shu ming xian sheng shi shang ge shi ji de zhong guo wen hua ming ren zhi yi, Shi 20 shi ji xin ru jia de kai chuang zhe, Shi si xiang jia, Zhe xue jia, Jiao yu jia, You shi po you ying xiang de she hui huo dong jia. You qi ta de du te de si xiang he xue shi, Ta de te li du xing de kan ke ren sheng jing (...) li, Yi bei zi jian chi jiang zhen hua, Shi bu tong xun chang de, Ye shi ruo gan tong shi dai de zhi ming ren shi suo bu ke qi ji de. (shrink)

Xue xi he yan jiu Zhongguo zhe xue, yi ban lai shuo, Feng xian sheng shi ke chao er bu ke yue de. Yi si shi, hou ren wan quan ke neng er qie ye ying dang sheng guo Feng xian sheng, dan shi que bu neng rao guo Feng xian sheng. Rao guo Feng xian sheng, bu dan bi ran yao duo fei li qi, er qie rong yi zou wan lu er nan yu shen ru tang ao. Feng (...) Youlan zuo wei wo guo jin dai zhe xue de yi dai ju bo, zai mou zhong yi yi shang, ying xiang liao zheng ge jin dai Zhongguo zhe xue de ge ju. Er dui yu Feng Youlan zhe xue ji qi xue shu sheng ya de yan jiu, ye sui zhe dang dai guo xue yan jiu de xing qi, shou dao yue lai yue duo de guan zhu. Minguo shi qi de Zhongguo xue shu jie, ying gai shuo shi hui ju le yi da pi kua shi dai de xue shu jing ying, te bie shi zai chuan tong xue shu ling yu, kan cheng yi chang si xiang de sheng yan.ben shu zuo zhe zai hao ru yan hai de Minguo wen xian zhong, jing xin zheng li chu dang shi xue jie dui Feng Youlan zhe xue de hui ying he dui hua, qi zhong bao kuo zhu ru Chen Yinke, Jin Yuelin, Hu Shi, Zhang Dainian, Cai Shangsi deng yi da pi xue jie tai dou de wen zhang, zi liao xing fei chang qiang, bu jin fan ying le zhu wei xue zhe ge ren de du dao jian jie, geng cong yi ge ce mian fan ying le Minguo shi qi Feng Youlan zhe xue yan jiu de sheng kuang, dui dang xia yan jiu Feng Youlan zhe xue si xiang ju you zhong yao de can kao jia zhi. (shrink)

Ben shu yi dong zhong shu zi ran guan wei shi jiao,Chan shu le dong zhong shu de"tian ren gan ying"lun,"wu lei lei bi"he"xun ming de li"de fang fa lun,Yi tian wei yuan ben de yu zhou lun,"bian er you chang"de bian zheng tian dao guan,Yi ji dong zhong shu you guan yuan qi,Yin yang,Wu xing de zi ran ke xue si xiang,Zai zong ti shang ken ding le dong zhong shu zai jie shi he ren shi zi ran gui (...) lü shang de jin bu xing,Ken ding le dong zhong shu dui zhong guo gu dai zi ran ke xue de gong xian,Bing pi ping le yi wang dui dong zhong shu bu gong zheng di ping pan.Ben shu tong shi ye zhi chu le dong zhong shu de mou xie si xiang dui hou shi de fu mian ying xiang. (shrink)

Ben shu yi han si{692126}kai mi sen de fa lü li lun ji qi shi jian wei zhong xin lun shu le kai mi sen xiang guan fa lü li lun de yuan yuan, chuan tong ji qi shi jian te xing, lun shu le kai mi sen zuo wei " ao di li xian fa de she ji shi " dui yu ao di li fa lü li lun ji qi shi jian suo zuo chu de gong xian. tong (...) shi, kai mi sen de fa lü li lun zhi gen yu xi fang de fa zhi li nian yi ji de yi zhi de fa lü li shi chuan tong, 1848 nian ge ming qi jian chan sheng de zhu duo xian fa yi ji ao xiong di guo de di guo fa yuan chuan tong wei kai mi sen de fa lü li lun dian ding ji chu, jiang kai mi sen de li lun ji qi shi jian zhi yu fa zhi li shi he de yi zhi fa lü li shi fa zhan de da huan jing zhong yu yi shen shi, ke yi geng hao di li jie kai mi sen de li lun ji qi shi jian de yi yi yu jia zhi. (shrink)

Ben shu jie shao le gong zi zhen, wei yuan, yan fu, kang you wei, tan si tong, liang qi chao, chen tian hua, zhang bing lin deng wan qing si xiang jia de zhe xue si xiang.

Ben shu dui Luling Wang xue de yan jiu, zhu yao cong yi xia liang fang mian zhan kai: shou xian, zhong dian jie shao le ti chu Luling Wang xue de li lun yi ju he Luling Wang xue fa zhan de ge ge jie duan de jie ding, te dian ji qi zhu yao de dai biao ren wu. Qi ci, ju ti lun shu le Luling Wang xue fa zhan de ge ge jie duan de zui zhu (...) yao dai biao ren wu de zhi xue li lu, xin xue si xiang, jing xue te dian. Tong guo dui Luling Wang xue zong ti shang de yan jiu, gai kuo he zheng li yi ji dui ge ge fa zhan jie duan zhu yao de dai biao ren wu Wang xue si xiang de bu tong shi jiao de tan tao chan fa, cong zong ti shang rang shi ren jiao wei xi tong de liao jie Luling Wang xue de gai mao ji qi cao chuang, fa zhan, ding sheng ji shi wei de li shi guo cheng he zhong yao dai biao ren wu de Wang xue si xiang. Tong shi, zai qian mian yan jiu de ji chu shang, dui Luling Wang xue zai Jiang you Wang xue nai zhi Yangming hou xue fa zhan guo cheng zhong de zhong yao di wei yi ji dui zhong wan Ming ru xue si xiang fa zhan de ying xiang zuo le zong jie. (shrink)

Ben shu jie shao le gong zi zhen, wei yuan, yan fu, kang you wei, tan si tong, liang qi chao, chen tian hua, zhang bing lin deng wan qing si xiang jia de zhe xue si xiang.

A proposition is noncontingent, if it is necessarily true or it is necessarily false. In an epistemic context, ‘a proposition is noncontingent’ means that you know whether the proposition is true. In this paper, we study contingency logic with the noncontingency operator? but without the necessity operator 2. This logic is not a normal modal logic, because?→ is not valid. Contingency logic cannot define many usual frame properties, and its expressive power is weaker than that of basic modal logic over (...) classes of models without reflexivity. These features make axiomatizing contingency logics nontrivial, especially for the axiomatization over symmetric frames. In this paper, we axiomatize contingency logics over various frame classes using a novel method other than the methods provided in the literature, based on the ‘almost-definability’ schema AD proposed in our previous work. We also present extensions of contingency logic with dynamic operators. Finally, we compare our work to the related work in the fields of contingency logic and ignorance logic, where the two research communities have similar results but are apparently unaware of each other’s work. One goal of our paper is to bridge this gap. (shrink)

In this note we shall describe the lattice of the congruences on a balanced Ockham algebra with the pseudocomplementation whose quotient algebras are boolean. This is an extension of the result obtained by Rodrigues and Silva who gave a description of the lattice of congruences on an Ockham algebra whose quotient algebras are boolean.

The present article presents Wang Fuzhi 王夫之 (1619-1692 C.E.)’s reading of the eighteenth chapter of the Zhuang-Zi 莊子 (ZZ) by looking at his entry from Zhuang-Zi-Tong 莊子通 and other key glosses from Zhuang-Zi-Jie 莊子解. The philosophical upshot, I aim to show, is that Wang takes ZZ as presenting the consummation of “the greatest joyousness” (zhi-le 至樂) as requiring getting rid of joyousness as one’s desideratum. Using Derek Parfit’s work as a point of reference, I aim to show that this is (...) not paradoxical or even inconsistent or even (directly or indirectly) self-defeating but is instead an interesting instance of a self-effacing theory. (shrink)

This study created a motion graphic animation about the danger of snakes within a story telling structure, which is different from a traditional science animation that relies on explanatory language to explain the scientific concept. The effects of the two types of animations on children’s attentional perception on snakes were compared by an inattentional blindness task. Three groups of children undertook the IB task with one control group who did not watch the animation and the other two groups who watched (...) the MG and the traditional styled animation, respectively in advance. The results showed that: Children who watched the animation were significantly more likely to detect the unexpected snake images in the IB task than those who did not watch the animation; Children who watched the MG animation showed a higher detection rate on the snake images than those who watched the traditional animation. The findings indicate that the intervention of animation would increase children’s attentional perception on the key concepts significantly. The MG animation has more impact than the traditional animation on children’s attentional perception on the key information. This study demonstrates that MG animation may have a significant value in promoting science education for young children that merits further explorations in depth. (shrink)

It is meaningful for a researcher to find some proper collaborators in complex academic tasks. Academic collaborator recommendation models are always based on the network embedding of academic collaborator networks. Most of them focus on the network structure, text information, and the combination of them. The latent semantic relationships exist according to the text information of nodes in the academic collaborator network. However, these relationships are often ignored, which implies the similarity of the researchers. How to capture the latent semantic (...) relationships among researchers in the academic collaborator network is a challenge. In this paper, we propose a content-enhanced network embedding model for academic collaborator recommendation, namely, CNEacR. We build a content-enhanced academic collaborator network based on the weighted text representation of each researcher. The content-enhanced academic collaborator network contains intrinsic collaboration relationships and latent semantic relationships. Firstly, the weighted text representation of each researcher is obtained according to its text information. Secondly, a content-enhanced academic collaborator network is built via the similarity of the weighted text representation of researchers and intrinsic collaboration relationships. Thirdly, each researcher is represented as a latent vector using network representation learning. Finally, top- k similar researchers are recommended for each target researcher. Experiment results on the real-world datasets show that CNEacR achieves better performance than academic collaborator recommendation baselines. (shrink)

Variability in the emotion regulation (ER) strategies one uses throughout daily life has been suggested to reflect adaptive ER ability and to act as a protective factor in mental health. Moreover, psychological inflexibility and persistent negative affect (or affective inertia) are key features of depression and other forms of mental illness and are often further exacerbated by rigid or overly passive regulatory behaviours. The current study investigated the hypothesis that ER variability might serve as a protective factor against depressive symptoms (...) and affective inertia. Using experience-sampling (N = 213), we tested whether two indictors of ER variability (between- and within-strategy SDs) were related to depressive symptoms and affective inertia. We found that people with higher between-strategy variability and within-strategy variability (specifically for reappraisal and distraction) reported fewer depressive symptoms. Both within- and between-strategy variability were negatively related to negative affective inertia. Between-strategy variability and negative affective inertia had unique effects on depression, when used as simultaneous predictors. Altogether, this study provides further evidence for the utility of ER as a factor buffering against depressive symptoms and particularly for the use of variable ER strategies. (shrink)

Underwater object detection plays an important role in research and practice, as it provides condensed and informative content that represents underwater objects. However, detecting objects from underwater images is challenging because underwater environments significantly degenerate image quality and distort the contrast between the object and background. To address this problem, this paper proposes an optical prior-based underwater object detection approach that takes advantage of optical principles to identify optical collimation over underwater images, providing valuable guidance for extracting object features. Unlike (...) data-driven knowledge, the prior in our method is independent of training samples. The fundamental novelty of our approach lies in the integration of an image prior and the object detection task. This novelty is fundamental to the satisfying performance of our approach in underwater environments, which is demonstrated through comparisons with state-of-the-art object detection methods. (shrink)

Link prediction is a key tool for studying the structure and evolution mechanism of complex networks. Recommending new friend relationships through accurate link prediction is one of the important factors in the evolution, development, and popularization of social networks. At present, scholars have proposed many link prediction algorithms based on the similarity of local information and random walks. These algorithms help identify actual missing and false links in various networks. However, the prediction results significantly differ in networks with various structures, (...) and the prediction accuracy is low. This study proposes a method for improving the accuracy of link prediction. Before link prediction, k-shell decomposition method is used to layer the network, and the nodes that are in 1-shell and the nodes that are not linked to the high-shell in the 2-shell are deleted. The experiments on four real network datasets verify the effectiveness of the proposed method. (shrink)

In this note we shall show that if L is a balanced pseudocomplemented Ockham algebra then the set ${\fancyscript{I}_{k}(L)}$ of kernel ideals of L is a Heyting lattice that is isomorphic to the lattice of congruences on B(L) where ${B(L) = \{x^* | x \in L\}}$ . In particular, we show that ${\fancyscript{I}_{k}(L)}$ is boolean if and only if B(L) is finite, if and only if every kernel ideal of L is principal.

Electroacupuncture (EA) and electroconvulsive therapy (ECT) are often used in the management of schizophrenia. This study sought to determine whether additional EA and ECT could augment antipsychotic response and reduce related side effects. In this retrospective controlled study, 287 hospitalized schizophrenic patients who received antipsychotics (controls, n = 50) alone or combined with EA (n = 101), ECT (n = 55) or both (EA+ECT, n = 81) were identified. EA and ECT were conducted for 5 and 3 sessions per week, (...) respectively, with a maximum of 12 sessions for ECT during hospitalization. The Scale for the Assessment of Positive Symptoms (SAPS) and Scale for the Assessment of Negative Symptoms (SANS) were used to assess the severity of psychotic symptoms. Clinical response on SAPS and SANS, weight gain, and adverse events were compared. Survival analysis revealed that the ECT and EA+ECT groups had markedly greater clinical response rate than controls on SAPS [72.7% and 90.1% vs. 64.0%; relative risk (RR), 1.974 and 2.628, respectively, P ≤ 0.004] and on SANS (67.3% and 70.4% vs. 42.0%; RR, 1.951 and 2.009, respectively, P ≤ 0.015). A significantly greater response rate on SANS than controls was also observed in the EA group (64.4% versus 42.0%; RR = 1.938, P = 0.008). EA-containing regimens remarkably reduced weight gain and incidences of headache, insomnia, dry mouth, and electrocardiographic abnormalities. These results suggest that EA and ECT can serve as additional treatment for enhancing antipsychotic response and reduce the side effects in hospitalized patients with schizophrenia. (shrink)

BackgroundBilateral cerebral palsy is the most common type of CP in children and is often accompanied by different degrees of communication impairment. Several studies have attempted to identify children at high risk for communication impairment. However, most prediction factors are qualitative and subjective and may be influenced by rater bias. Individualized objective diagnostic and/or prediction methods are still lacking, and an effective method is urgently needed to guide clinical diagnosis and treatment. The aim of this study is to develop and (...) validate an objective, individual-based model for the prediction of communication impairment in children with BCP by the time they enter school.MethodsA multicenter prospective cohort study will be conducted in four Chinese hospitals. A total of 178 children with BCP will undergo advanced brain magnetic resonance imaging at baseline. At school entry, communication performance will be assessed by a communication function classification system. Three-quarters of children with BCP will be allocated as a training cohort, whereas the remaining children will be allocated as a test cohort. Multivariate lesion- and connectome-based approaches, which have shown good predictive ability of language performance in stroke patients, will be applied to extract features from MR images for each child with BCP. Multiple machine learning models using extracted features to predict communication impairment for each child with BCP will be constructed using data from the training cohort and externally validated using data from the test cohort. Prediction accuracy across models in the test cohort will be statistically compared.DiscussionThe findings of the study may lead to the development of several translational tools that can individually predict communication impairment in children newly diagnosed with BCP to ensure that these children receive early, targeted therapeutic intervention before they begin school.Trial registrationThe study has been registered with the Chinese Clinical Trial Registry. (shrink)

Action video game (AVG) has attracted increasing attention from both the public and from researchers. More and more studies found video game training improved a variety of cognitive functions. However, it remains controversial whether healthy adults can benefit from AVG training, and whether young and older adults benefit similarly from AVG training. In the present study, we aimed to quantitatively assess the AVG training effect on the cognitive ability of adults and to compare the training effects on young and older (...) adults by conducting a meta-analysis on previous findings. We systematically searched video game training studies published between January 1986 and July 2015. Twenty studies were included in the present meta-analysis, for a total of 313 participants included in the training group and 323 participants in the control group. The results demonstrate that healthy adults achieve moderate benefit from AVG training in overall cognitive ability and moderate to small benefit in specific cognitive domains. In contrast, young adults gain more benefits from AVG training than older adults in both overall cognition and specific cognitive domains. Age, education, and some methodological factors, such as the session duration, session number, total training duration, and control group type, modulated the training effects. These meta-analytic findings provide evidence that AVG training may serve as an efficient way to improve the cognitive performance of healthy adults. We also discussed several directions for future AVG training studies. (shrink)

Analyzing students’ internal cognitive-motivational appraisals and achievement emotions is of pivotal importance for educational outcomes and student individual wellbeing, yet little is shown about their associations with teacher autonomy support. This study investigates the relationship between perceived teacher autonomy support and reading achievement by addressing mediating influences of control and value-related constructs, i.e., reading self-efficacy, meaning in life, and reading enjoyment. Multiple mediation modeling was adopted to test the proposed model with carrying out a total of 12,058 students from 361 (...) schools in China in the Programme for International Student Assessment 2018 reading database. The results elucidated that student-perceived teacher autonomy support is significantly positively related to adolescents’ reading outcomes by fostering internal control and value appraisals and academic enjoyment. These current findings confirm the positive correlation between teacher autonomy support and adolescents’ motivational and emotional factors, providing significant practical implications for educators to adopt various teaching strategies to enhance adolescents’ self-efficacy, intrinsic values, and positive emotions. (shrink)

From classic aesthetic theories to fresh aesthetic methods, this volume is an accessible introduction to the main topics in contemporary aesthetics: the media-technological challenges, transcultural aesthetics and aesthetic methodology.

本书采用人类学视野，直面本土现实，依循新人文学科的建设路径，在中西当代学术思想的碰撞和融会中，对于马克思主义文艺理论的中国范式、民族艺术与文明冲突、美学意识形态、中国当代悲剧问题、人文精神建设、全球化 与文化多样性、地方性审美经验与认同危机、民族审美经验等重要理论问题做了深沉的思考。.

Kim Dong-ri et Seo Jeong-ju sont deux monuments de la littérature coréenne du XX e siècle. Les deux écrivains nouèrent une profonde amitié à partir des années 1930 et contribuèrent ensemble à la reconstruction du milieu littéraire de la Corée après la période de l’Occupation japonaise. Dans quel contexte le romancier et le poète se sont-ils rencontrés? Quelles sont les caractéristiques de leur lien amical? Comment celui a-t-il résisté aux vicissitudes du temps et au désaccord momentané lié aux circonstances? À (...) partir d’éléments biographiques, autobiographiques et de leurs témoignages réciproques, nous découvrons que la connaissance intime de l’univers de l’un par l’autre et leur inspiration mutuelle se fondent sur les valeurs littéraires et humanistes qu’ils partagent : fins connaisseurs de la littérature du monde, ils valorisent dans leur écriture des éléments proprement coréens. (shrink)

We investigate the class of those algebras in which is a de Morgan algebra, is a quasi-Stone algebra, and the operations \ and \ are linked by the identity x**º = x*º*. We show that such an algebra is subdirectly irreducible if and only if its congruence lattice is either a 2-element chain or a 3-element chain. In particular, there are precisely eight non-isomorphic subdirectly irreducible Stone de Morgan algebras.

As the most frequently used tool for measuring empathy, the Interpersonal Reactivity Index (IRI) is often scored by researchers arbitrarily and casually. Many commonly used IRI scoring approaches and their corresponding measurement models are unverified, which may make the conclusions of subsequent variable relation studies controversial and even misleading. We make the first effort to summarize these measurement models and to evaluate rationality of the common scoring methods of the IRI by confirmatory factor analysis, focusing on model fitting, factor loading, (...) and model-based reliability simultaneously. The results show that most of these models do not fit well, indicating that the scoring approaches of the IRI corresponding to these models may be problematic. Relatively speaking, better scoring approaches of the IRI include summing empathic concern and perspective taking as the total score of the IRI and reporting the score of perspective taking as cognitive empathy. (shrink)

The metaverse concept constructs a virtual world parallel to the real world. The social economic dynamics model establishes a systematic model for social economic dynamics simulation that integrates macroeconomy and microeconomy based on modeling mechanism of the new theory of value by analogy with Newtonian mechanics and the modeling approach of Agent-based computational economics. This article describes the SED model’s modeling mechanisms, modeling rules, and behavior equations. At the same time, this article introduces the methods, testing standards, and some typical (...) cases about using the SED model to generate the economic digital twin systems. By doing so, we hope to demonstrate that the method of computer simulation experiment based on the SED model is a scientific empirical method, which has more advantages than the existing empirical research methods in economics. The SED model, which can be fully used to form an economic engine and construct a virtual economic system by digital twin method, can be integrated with the extant physical engine in the metaverse concept to build a virtual world consisting of physics, economy, culture, and politics that is close to and coexists with reality. (shrink)

This research empirically investigates the static and dynamic impacts of firms' digital transformation on environmental, social, and governance (ESG) performance by employing data of listed Chinese companies from 2011 to 2020 via estimations of propensity score matching and difference in differences. First, we find that digital transformation does some good to improve firms' ESG, which is confirmed after conducting several robustness tests. Second, digital transformation benefits the three aspects of ESG (environmental performance, social responsibility, and governance), and its impact is (...) dynamic, promote ESG two years after the digital reform. Third, the impact of digital transformation on ESG is not constant among different firms. Specifically, digital transformation's impact on ESG is stronger among firms located in western or central regions of China and to those in polluting and competitive industries, as well as among non-stated-owned enterprises. (shrink)

This study aims to evaluate the changes in shot characteristics of elite women table tennis players through the longitudinal analysis of women's singles finals and semifinals from 2004 to 2021 Olympic Games. A total of 13 games were selected, and the stroke position, stroke type, ball placement, and stroke efficacy of 5,877 shots were analyzed using the notational analysis method. A chi-square test was used to test whether the shot characteristics had changed between game years, and the adjusted residual was (...) calculated to judge these changes. In the four dimensions, namely, stroke position, stroke type, ball placement, and stroke efficacy, the shot characteristics of women table tennis players have changed with the year of the Olympic Games. The backhand stroke position has an upward trend from 55.0 to 58.1%, and the type of flip stroke has a downward trend from 7.6 to 2.1%. The ball placements of forehand and middle long have two fluctuations first rising from 11.2 to 12.7% and 20.3 to 23.7% and then falling from 12.7 to 5.3% and 23.7 to 16.0%. Moreover, backhand long is being increasingly used. In the year of equipment change, the proportion of neutral stroke increases from 40.0 to 61.5%. Once the players have become adapted to the equipment, the proportion of neutral stroke decreases from 61.5 to 48.5%. The development trend of women table tennis players is that the extreme stroke will be further increasingly used. Results suggest that elite women table tennis coaches and players should focus on the technical training in the forehand and backhand positions, strengthen the practice of topspin and block, and pay attention to the backhand long landing area. Women's table tennis coaches and players also need to pay close attention to the possible impact of changes in rules and equipment and carry out targeted training in advance to minimize the impact on the stroke efficacy of players. (shrink)

The brain-computer interface based on functional near-infrared spectroscopy has received more and more attention due to its vast application potential in emotion recognition. However, the relatively insufficient investigation of the feature extraction algorithms limits its use in practice. In this article, to improve the performance of fNIRS-based BCI, we proposed a method named R-CSP-E, which introduces EEG signals when computing fNIRS signals’ features based on transfer learning and ensemble learning theory. In detail, we used the Independent Component Analysis algorithm for (...) the correspondence between the sources of the two signals. We then introduced the EEG signals when computing the spatial filter based on a modified Common Spatial Pattern algorithm. Experimental results on public datasets show that the proposed method in this paper outperforms traditional methods without transfer. In general, the mean classification accuracy can be increased by up to 5%. To our knowledge, it is an innovation that we tried to apply transfer learning between EEG and fNIRS. Our study’s findings not only prove the potential of the transfer learning algorithm in cross-model brain-computer interface, but also offer a new and innovative perspective to research the hybrid brain-computer interface. (shrink)