This article provides a comprehensive analysis of the stock market reaction to green bond issuance announcements for a large, international sample of listed companies. Existing empirical studies find mixed results regarding this issue. Using a sample of 595 green bonds issued between 2014 and 2021, we conducted a series of event studies to analyze the changes in issuer returns and liquidity following the announcements. We find that the market reaction is significantly negative, more severe compared to conventional bond issues, but (...) improves over time. Green bonds issued by companies with poor environmental performance or without prior experience in issuing such bonds generate a more negative market reaction. We also find that stock liquidity improves for issuers with good environmental performance. Our findings have significant implications as they suggest the existence of economies of scale in repeated issuances of green bonds and/or increasing reliability in the bond’s greenness. (shrink)

This study explores teachers’ personal practical knowledge and curricular-instructional gatekeeping as they relate to the teaching of controversial issues in public elementary school settings, particularly the issue of immigration. The study took place in the urban setting of Houston and, using a case study design, documented how three elementary school teachers made curricular-instructional decisions by making use of their personal practical knowledge. Findings illuminate that personal practical knowledge plays a role in teacher's curricular-instructional gate keeping in socially divisive contexts. And, (...) the findings indicate that these three elementary school teachers make curricular-instructional decisions to effectively address controversial public issues in their classrooms through curriculum choosing, assignments creating, and conflict dialogue building. (shrink)

This study is aimed at exploring how teacher preparation programs in Taiwan—both traditional and alternative— prepare teachers for teaching controversial public issues specific to Taiwan (e. g., national identity, sovereignty, and ethnic issues). Using a case study design, this study documents six social studies teachers’ readiness and attitudes about whether to teach controversial public issues or not. Findings illuminate that 1) teachers’ attitudes and readiness have been influenced by their teacher preparation programs (both traditional and alternative); 2) teachers from different (...) teacher education programs contribute to their curricular-instructional decision making for teaching controversial public issues differently. (shrink)

How to enable the computer to accurately analyze the emotional information and story background of characters in Qin opera is a problem that needs to be studied. To promote the artistic inheritance and cultural emotion color dissemination of Qin opera, an emotion analysis model of Qin opera based on attention residual network is presented. The neural network is improved and optimized from the perspective of the model, learning rate, network layers, and the network itself, and then multi-head attention is added (...) to the ResNet to increase the recognition ability of the model. The convolutional neural network is optimized from the internal depth, and the fitting ability and stability of the model are enhanced through the ResNet model. Combined with the attention mechanism, the expression of each weight information is strengthened. The multi-head attention mechanism is introduced in the model and a multi-head attention ResNet, namely, MHAtt_ResNet, is proposed. The network structure can effectively identify the features of the spectrogram, improve the weight information of spectrogram features, and deepen the relationship between distant information in long-time series. Through experiments, the proposed model has high emotional classification accuracy for Qin opera, and with the increase of the number of data sets, the model will train a better classification effect. (shrink)

Pain has not only sensory, but also emotional and cognitive, components. Some studies have explored the effect of pain on time perception, but the results remain controversial. Whether individual pain-related emotional and cognitive factors play roles in this process should also be explored. In this study, we investigated the effect of electrical stimulation–induced pain on interval timing using a temporal bisection task. During each task session, subjects received one of five types of stimulation randomly: no stimulus and 100 and 300 (...) ms of non-painful and painful stimulation. Pain-related emotional and cognitive factors were measured using a series of questionnaires. The proportion of “long” judgments of a 1,200-ms visual stimulus duration was significantly smaller with 300 ms painful stimulation than with no stimulus and 100 ms and 300 ms non-painful stimulation. The point of subjective equality did not differ among sessions, but the average Weber fraction was higher for painful sessions than for no-stimulus session. The pain fear score correlated positively with the PSE under 100 ms non-painful and painful and 300 ms painful stimulation. Pain catastrophizing and pain anxiety scores correlated significantly with the WF under no stimulus and 100 ms non-painful stimulation, respectively. These results suggest that electrical stimulation–induced pain affects temporal sensitivity, and that pain-related emotional and cognitive factors are associated with the processing of time perception. (shrink)

Facial muscle activities are essential for the appearance and communication of human beings. Therefore, exploring the activation patterns of facial muscles can help understand facial neuromuscular disorders such as Bell’s palsy. Given the irregular shape of the facial muscles as well as their different locations, it should be difficult to detect the activities of whole facial muscles with a few electrodes. In this study, a high-density surface electromyogram system with 90 electrodes was used to record EMG signals of facial muscles (...) in both healthy and Bell’s palsy subjects when they did different facial movements. The electrodes were arranged in rectangular arrays covering the forehead and cheek regions of the face. The muscle activation patterns were shown on maps, which were constructed from the Root Mean Square values of all the 90-channel EMG recordings. The experimental results showed that the activation patterns of facial muscles were distinct during doing different facial movements and the activated muscle regions could be clearly observed. Moreover, two features of the activation patterns, 2D correlation coefficient and Centre of Gravity were extracted to quantify the spatial symmetry and the location of activated muscle regions respectively. Furthermore, the deviation of activated muscle regions on the paralyzed side of a face compared to the healthy side was quantified by calculating the distance between two sides of CGs. The results revealed that corr2 of the activated facial muscle region in Bell’s palsy subjects was significantly lower than that in healthy subjects, while CG distance of activated facial region in Bell’s palsy subjects was significantly higher than that in healthy subjects. The correlation between corr2 of these regions and Bell’s palsy [assessed by the Facial Nerve Grading Scale 2.0] was also significant in Bell’s palsy subjects. The spatial information on activated muscle regions may be useful in the diagnosis and treatment of Bell’s palsy in the future. (shrink)

Research in the field of Chinese as a foreign language education has been increasing in the past decades. However, the number of studies on CFL teacher identity is limited. To bridge the gap, this study employed a qualitative method to explore Chinese CFL teachers’ identity formation and reformation in Australian contexts. A Chinese-Australian language program was studied to examine the challenges, struggles and developments of Chinese CFL teachers who came to Australia to pursue professional growth. Five Master’s theses and three (...) interview participants were included to paint a picture of how Chinese CFL teachers interact internally and externally with a new environment. Guided by Mead’s theory of self and other, we found that Chinese CFL teachers’ identity formation and reformation in Australian classrooms are deeply influenced by their self-identification and their integration with others in the community. Cultural connectedness is a key for organizational attitudes in the relationship of self and other. Chinese CFL teachers were found lacking the wholeness of self in Australian contexts, which led to obstacles in teacher identity construction. Insufficient communication between self and other resulted in their positioning crisis. (shrink)

Fear is a common and potentially distressful psychological response to the current COVID-19 pandemic. The factors associated with such fear remains relatively unstudied among older adults. We investigated if fear of COVID-19 could be associated with a combination of psychological factors such as anxiety and depressive symptoms, and risk perception of COVID-19, and demographic factors in a community sample of older adults. Older adults completed measures of fear of COVID-19, anxiety and depressive symptoms, and risk perception of COVID-19, during a (...) COVID-19 lockdown. These variables, together with demographics, were fitted to a structural equation model. Anxiety and depressive symptoms were highly correlated with each other and were combined into the higher order latent variable of affective symptoms for analyses. The final model revealed that fear of COVID-19 was positively associated with psychological factors of affective symptoms and risk perception. Older age was associated with greater fear of COVID-19. Our findings showed that fear of COVID-19 can be a projection of pre-existing affective symptoms and inflated risk perceptions and highlighted the need to address the incorrect risk perceptions of COVID-19 and socio-affective issues among older adults in the community. (shrink)

Several functional magnetic resonance imaging studies have demonstrated abnormalities in static intra- and interhemispheric functional connectivity among diverse brain regions in patients with major depressive disorder. However, the dynamic changes in intra- and interhemispheric functional connectivity patterns in patients with MDD remain unclear. Fifty-eight first-episode, drug-naive patients with MDD and 48 age-, sex-, and education level-matched healthy controls underwent resting-state fMRI. Whole-brain functional connectivity, analyzed using the functional connectivity density approach, was decomposed into ipsilateral and contralateral functional connectivity. We computed (...) the intra- and interhemispheric dynamic FCD using a sliding window analysis to capture the dynamic patterns of functional connectivity. The temporal variability in functional connectivity was quantified as the variance of the dFCD over time. In addition, intra- and interhemispheric static FCD patterns were calculated. Associations between the dFCD variance and sFCD in abnormal brain regions and the severity of depressive symptoms were analyzed. Compared to HCs, patients with MDD showed lower interhemispheric dFCD variability in the inferior/middle frontal gyrus and decreased sFCD in the medial prefrontal cortex/anterior cingulate cortex and posterior cingulate cortex/precuneus in both intra- and interhemispheric comparisons. No significant correlations were found between any abnormal dFCD variance or sFCD at the intra- and interhemispheric levels and the severity of depressive symptoms. Our results suggest intra- and interhemispheric functional connectivity alterations in the dorsolateral prefrontal cortex and default mode network regions involved in cognition, execution and emotion. Furthermore, our study emphasizes the essential role of altered interhemispheric communication dynamics in the DLPFC in patients with MDD. These findings contribute to our understanding of the pathophysiology of MDD. (shrink)

Speech recognition by second language (L2) learners in optimal and suboptimal conditions has been examined extensively with English as the target language in most previous studies. This study extended existing experimental protocols ( Wang et al., 2013 ) to investigate Mandarin speech recognition by Japanese learners of Mandarin at two different levels (elementary vs. intermediate) of proficiency. The overall results showed that in addition to L2 proficiency, semantic context, F0 contours, and listening condition all affected the recognition performance on the (...) Mandarin sentences. However, the effects of semantic context and F0 contours on L2 speech recognition diverged to some extent. Specifically, there was significant modulation effect of listening condition on semantic context, indicating that L2 learners made use of semantic context less efficiently in the interfering background than in quiet. In contrast, no significant modulation effect of listening condition on F0 contours was found. Furthermore, there was significant interaction between semantic context and F0 contours, indicating that semantic context becomes more important for L2 speech recognition when F0 information is degraded. None of these effects were found to be modulated by L2 proficiency. The discrepancy in the effects of semantic context and F0 contours on L2 speech recognition in the interfering background might be related to differences in processing capacities required by the two types of information in adverse listening conditions. (shrink)

In this paper, a seven-parameter BRDF model with double-peak characteristic, which could fit double-peak data, was adopted to fit the BRDF of Mars simulation soil. At the same time, the three-dimensional figure of the original data of the sample and the three-dimensional curve of the fitted curve were given. The results proved that the model worked well for this type of data. In addition, the experimental data of four kinds of earth sand samples with different roughness were also fitted and (...) analyzed. It was found that the model still had a good fitting effect on such data. At last, the Mars simulation soil and the four kinds of earth sand samples with different roughness were compared horizontally and vertically. Moreover, the double-peak characteristics and other properties of the Mars simulation soil and the earth sand were analyzed under the same and different roughness. (shrink)

BackgroundPrehospital delay is associated with non-modifiable factors such as age, residential region, and disease severity. However, the impact of psychosocial factors especially for job burnout on prehospital decision delay is still little understood.MethodThis internet-based survey was conducted between 14 February 2021 and 5 March 2021 in China through the Wechat platform and web page. Self-designed questionnaires about the expected and actual length of prehospital decision time and the Chinese version of Maslach Burnout Inventory-General Survey, Type D Personality Scale-14, and Social (...) Support Rating Scale were applied. A total of 1,039 general participants with a history of perceptible but tolerable body discomfort were included.ResultsThe top six reasons for prehospital decision delay were: endure until self-healing, too busy to ask for leave, process for seeing a doctor too complicated, too tired after work, worry about the expenditure, and fear of being identified as with serious problem. The univariate analyses revealed that older age, type D personality, job burnout, and worrying about expenditure were associated with prolonged prehospital decision time, while engaged in medical-related job and with more social support would shorten the delay. The multivariate analysis using logistic regression model with forward selecting method showed that age [per 10 years, odds ratio 1.19, p 7 days). Mediating effects were analyzed by using bias-corrected percentile bootstrap methods. Social support was found partially mediated the relationship between the determinants and prehospital decision time. The partial mediating effect of social support accounted for 24.0% of the total effect for job burnout and 11.6% for worrying about expenditure.ConclusionPsychosocial factors have a non-negligible impact on prehospital decision delay. The crucial part of prehospital decision delay may be the lack of motivation inside. Job burnout and lack of social support, as two commonly seen features in the modern world, should be given enough consideration in disease prevention and treatment. (shrink)

漢宋分爭是清代學術的結穴，也制約着民國學術的流變。 本書以重新梳理清代漢宋關系為主旨，在盡量占據文獻的基礎上轉變研究思路，將清季以來尤其是民國學人名著中廣為流傳的觀點作為前賢見識，而非清學的本事；進而在整體的觀照下，選取漢宋敘述形成的關鍵環節，即阮元— —學海堂——陳澧的大事因緣，拋開成見，使條理人事關系與解讀文獻本意相輔相成，揭示史事、觀念發生演化的歷史進程，重現清中葉所謂漢宋分爭的本相，寓解構於重構之中。 於梅舫，1980年出生，浙江紹興人，歷史學博士。先后求學於浙江師范大學歷史系、中國人民大學歷史系、中山大學歷史系、復旦大學文史研究院，現為中山大學歷史系副教授。.

To better reflect the precise clustering results of the data samples with different shapes and densities for affinity propagation clustering algorithm, an improved integrated clustering learning strategy based on three-stage affinity propagation algorithm with density peak optimization theory was proposed in this paper. DPKT-AP combined the ideology of integrated clustering with the AP algorithm, by introducing the density peak theory and k-means algorithm to carry on the three-stage clustering process. In the first stage, the clustering center point was selected by (...) density peak clustering. Because the clustering center was surrounded by the nearest neighbor point with lower local density and had a relatively large distance from other points with higher density, it could help the k-means algorithm in the second stage avoiding the local optimal situation. In the second stage, the k-means algorithm was used to cluster the data samples to form several relatively small spherical subgroups, and each of subgroups had a local density maximum point, which is called the center point of the subgroup. In the third stage, DPKT-AP used the AP algorithm to merge and cluster the spherical subgroups. Experiments on UCI data sets and synthetic data sets showed that DPKT-AP improved the clustering performance and accuracy for the algorithm. (shrink)

Resumen: La cultura filosófica tradicional china se refiere al pensamiento filosófico y las tradiciones culturales de la antigua China que incluye diferentes escuelas filosóficas y sistemas de pensamiento como el confucianismo, el taoísmo, el mohismo y el legalismo. Como sistema de pensamiento único en la antigua China, la cultura filosófica tradicional china es una herencia acumulada por la nación china. La cultura Han Fu es un componente importante de la cultura tradicional china, que abarca orígenes históricos, características morfológicas, materiales y (...) técnicas, costumbres, connotaciones culturales y valores espirituales. Puede aplicarse y heredarse en la sociedad contemporánea, así como integrarse e interactuar con otros elementos culturales tradicionales. Como importante portadora del pensamiento filosófico tradicional chino, la cultura Han Fu es también una manifestación concreta de la cultura nacional china y del espíritu humanista moderno. Como forma de heredar y exhibir la cultura de la vestimenta tradicional china, la representación de la cultura Han Fu ha recibido cada vez más atención y afecto y ha desempeñado un papel importante en la larga historia, y su evolución y desarrollo también han sido influenciados y moldeados por la cultura filosófica tradicional china. Por tal motivo, este artículo utilizó el enfoque hermenéutico, el materialismo dialéctico y el materialismo histórico, explorando las manifestaciones de la cultura filosófica tradicional china en la cultura Han Fu, con el fin de comprender y heredar mejor la cultura Han Fu. El artículo presenta primero los pensamientos filosóficos tradicionales chinos, que incluyen principalmente el confucianismo, el taoísmo y el pensamiento budista; luego se elaboraron varios conceptos importantes en el pensamiento filosófico; luego, consideraremos y analizaremos las ideas filosóficas contenidas en la cultura Han Fu, y señalaremos la encarnación y aplicación de las ideas filosóficas de “unidad del cielo y el hombre” y “neutralidad” en la cultura Han Fu; Finalmente, el valor del desempeño de Han Fu se elabora a partir de dos aspectos: su expresión de valor, forma de expresión y contenido. Mediante el estudio, se descubrió que la cultura Han Fu puede presentar y expresar sus ideas centrales de una manera específica para demostrar mejor el pensamiento filosófico tradicional chino, lo que ayuda a instar mejor a las personas a utilizar la cultura Han Fu como herramienta y utilizarla para publicitar. sus ideas y conceptos relevantes. (shrink)

Offering organic food is a new trend in the hospitality industry seeking sustainable competitiveness. Premiums and information barriers impede continued growth in organic consumption. This study aims to explore the role of comparative advertising in organic food communication. Three empirical studies were used to verify the effect of CA vs. non-comparative advertising on consumers’ willingness to pay a premium for organic food, examining how benefit appeals and consumers’ organic skepticism affects CA. The results indicate that matching CA and health appeals (...) increase consumers’ WTPP, while environmental appeals have no significant differences between the CA and NCA groups. Information persuasiveness mediates the interaction between CA and benefit appeal on WTPP. CA increases WTPP among consumers with high organic skepticism, while the interaction between CA and health appeal is only effective for low skepticism consumers. The findings unravel and explain the mechanics of how CA works in organic products, which can help restaurants, retailers and tourist destinations advertise organic food to increase consumers’ WTPP. (shrink)

The concept of digital twinning has become a hot topic in the manufacturing industry in recent years. The emerging digital twin technology is an intelligent technology that makes full use of multimodels, big data, and interdisciplinary knowledge, which provides some new approaches for the field of the intelligent manufacturing industry. The job shop scheduling problem has been an important research field in the discrete manufacturing industry. Digital twin technology is adopted to solve the problem of job shop scheduling, which provides (...) the possibility for the intelligent development of workshops. Based on digital twin technology and combined with the actual problem of production line scheduling, we propose a new intelligent scheduling platform to solve the shop scheduling problems above. Meanwhile, based on the prediction and diagnosis of multisource dynamic interference in the workshop production process by big data analysis technology, the corresponding interference strategy is formulated in advance by the scheduling cloud platform. The model simulation experiment of intelligent dispatching cloud platform was carried out, and some enterprises in intelligent manufacturing workshop were taken as examples to verify the superiority of the dispatching cloud platform. Finally, we look forward to the future research direction of intelligent manufacturing based on digital twin technology. (shrink)

Background: We described the prevalence of anxiety and depression related to COVID-19 pandemic among different types of population and examined their potential risk factors.Methods: A cross-sectional survey was conducted to collect demographic characteristics, exposure histories, and many other concerns about COVID-19. The Zung's self-rating anxiety scale and self-rating depression scale, followed by a four-step multiple logistic regression analysis was performed to identify factors associated with mental health outcomes.Results: Out of 3,303 participants, the quarantined people, community workstation staffs-policemen-volunteers and general public (...) reported higher percentages of depression than the general medical staff. Moreover, the quarantined people also showed higher prevalence of anxiety than the general public and the general medical staff. The quarantined people had the highest risk of anxiety and depression, whereas the self-rated health was negatively associated with the risks of anxiety and depression. Younger age group showed higher risks of anxiety and depression. People who had exposure history or contact from Hubei province after December 1, 2019, had family or friends engaged in front-line health care work, had confirmed case nearby were all more likely to suffer from anxiety. Moreover, the negligence or overindulgence toward the epidemic information was associated with a higher risk of depression and anxiety.Conclusions: Our findings show that the CPV and quarantined people were most at-risk population. We have identified that the young people, people with exposure histories and negligence or overindulgence toward epidemic information are in grave need of attention. (shrink)