PurposeThis study investigated the impact of age and myopia on visual form perception among Chinese school-age children.MethodsThis cross-sectional study included 1,074 students with a mean age of 12.1 ± 4.7 years. The mean spherical equivalence refraction of the participants was −1.45 ± 2.07 D. All participants underwent distance visual acuity, refraction measurement and local and global visual form perception test including orientation, parallelism, collinearity, holes and color discrimination tasks.ResultsThe reaction times of emmetropes were slower than those of myopic and high (...) myopic groups on both local and global discrimination tasks. A reduction in reaction times was found with increasing age on both local and global discrimination tasks. Age was significantly associated with both local and global visual perception performance after adjusting for gender, visual acuity and SER.ConclusionsThis study revealed that both local and global visual perception improve with age among Chinese children and that myopes seem to have better visual perception than emmetropes. (shrink)

Family firms not only play an important role in economic growth but should also be held partly responsible for environmental degradation. Employing normative stakeholder theory and analyzing unique Chinese survey data via stepwise regression models, our findings indicate that second-generation successors did not significantly impact family firms' environmental investment. However, among second-generation successors, we find that successors with international experience positively impacted environmental investment. The propensity score matching (PSM) and two-stage least squares estimation (2SLS) approaches confirm our results. As an (...) interdisciplinary study, our research is of great value to the environmental responsibility and family business literature. (shrink)

With the rise of the “humanitarian drone” in recent years, drones have become one of the most controversial public interest technologies that have gained increasing media attention. It is worth noting that, although there is a perception in the aid sector that drones hold the promise to reinvent the health supply logistics, to date, routine drone delivery is still relatively new and largely unproven. This paper presents a recent field study conducted in 2019, where drones were deployed in Malawi to (...) help address the last mile challenge in medical supply delivery, and where a noticeable mentality of “killing two birds with one stone” around the attempt of using drones in resource-poor settings is observed. The objective of the paper is to shed light, through a real-world case study and from the ethical perspective, on the impacts of implementing such a systemic change in the existing health supply chain systems. As conclusion, a call for more reflexive approaches for the critical examination, as well as more structured guidance for the responsible evaluation, of medical cargo drones is raised. (shrink)

本书系作者一系列关于后现代理论衰落后新出现的批评流派的论文集。其内容和体例分为五编。第一编的两章分别对九十年代以来国际学术界关于后现代主义问题的讨论作出总结性的评述;第二编“后殖民主义”应当说是本书的 重点,在首先对后殖民理论的源起以及后殖民地文学的概况作一“鸟瞰式”的评价。.

Increasingly, humanitarian organizations across the globe have been implementing innovative technologies in their practice as they respond to the needs of communities affected by conflicts, disasters, and public health emergencies. However, technological innovation may intersect with moral values, norms, and commitments, and may challenge humanitarian imperatives. Through the examination of an empirical case study on drone mapping, this paper aims to explore three questions: (1) What are the dynamics between aid delivery and technological innovation in the humanitarian enterprise? (2) How (...) are structural problems addressed in an environment in which technology is being portrayed as a force for change? (3) What moral responsibilities towards vulnerable populations should humanitarian stakeholders bear when introducing innovative technologies in humanitarian action. Discussion revolves around the ideology of “technological utopia”, and the normative role of technology in the aid sector - to make substantive impacts, or to produce “success stories”. In conclusion, a call for rigorous ethical analysis to help foster value sensitive humanitarian innovation (VSHI) is made. (shrink)

This book introduces the notions and methods of formal logic from a computer science standpoint, covering propositional logic, predicate logic, and foundations ...

In Philosophical Investigations §244, Wittgenstein suggests that we understand avowals (first-person psychological utterances) as manifestations or expressions of the speaker's mental states. An interesting philosophical theory, called expressivism, then develops from this Wittgensteinian idea. However, neo-expressivists disagree with simple expressivists on whether avowals are at the same time assertions, which are truth-evaluable. In this paper, I pursue the expressivist debate about whether avowals must also be viewed as assertions. I consider and reject three neo-expressivist objections against simple expressivism. Then, I (...) offer my own account of why we should understand avowals as assertions. (shrink)

In Authority and Estrangement, Richard Moran provides a fascinating account of how we know what we believe that he calls the “transparency account.” This account relies on the transparency relation between the question of whether we believe that p and the question of whether p is true. That is, we can consider the former by considering the grounds for the latter. But Moran’s account has been criticized by David Finkelstein, who argues that it fails to explain how we know our (...) attitudes and emotions more generally. The aim of this paper is to show how Moran’s transparency account can be extended to meet this criticism by modifying it, using insights from Davidson’s view on attitudes and emotions. (shrink)

Epicurus famously argued that death cannot be bad for a person because only painful experiences or something that brings about them can be bad for people, but when a person dies, she cannot experience anything at all, let alone pain. If, as Epicurus argued, death is not something bad for us, then presumably, we have no reason to fear it. In contrast with Epicurus, however, contemporary philosophers of death generally subscribe to the deprivation account of the badness of death, which (...) allows that death can be comparatively bad for the one who dies. Still, many deprivation theorists believe that death, as merely comparatively bad, is not a fitting object of fear. Some of them argue that our attitudes would be unfitting if they respond to comparative value; while others contend that fear is not the kind of attitude that tracks comparative value. In this paper, I critically assess these arguments by deprivation theorists, and argue that, contrary to what these theorists claim, their arguments do not entail that death does not merit fear. (shrink)

本书从回忆母亲中医治病开始,一路写来,有中医的神奇、有中医的道理、有中医与西医的区别、有人生的智慧、有豁达的胸襟、有现代人常常忽略的东西、有不少值得深思的问题.

ObjectivesIn this study, the effect of WeChat use on the subjective health of older adults was examined.MethodsUsing 2018 China Health and Retirement Longitudinal Study survey data, we attempted to rule out potential endogeneity bias by employing instrumental variable regression to estimate the effects of WeChat use on the health of older individuals. Mobile phone price was chosen as the instrumental variable, and the health of older adults was measured from two aspects: self-rated health and the Center for Epidemiological Studies of (...) Depression Scale.ResultsWeChat use has a significant positive impact on the subjective health of older adults and can significantly improve their self-rated health and mental health status. WeChat use has significant positive effects on the subjective health of both older men and women, but relatively younger older adults obtain more health benefits from WeChat use.ConclusionThe virtual social participation prompted by WeChat use affects the health of older adults. This finding provides a reference for promoting the active integration of older adults into digital life. (shrink)

Friedrich Nietzsche has emerged as one of the most important and influential modern philosophers. For several decades, the book series Monographien und Texte zur Nietzsche-Forschung (MTNF) has set the agenda in a rapidly growing and changing field of Nietzsche scholarship. The scope of the series is interdisciplinary and international in orientation reflects the entire spectrum of research on Nietzsche, from philosophy to literary studies and political theory. The series publishes monographs and edited volumes that undergo a strict peer-review process. The (...) book series is led by an international team of editors, whose work represents the full range of current Nietzsche scholarship. (shrink)

This study focuses on user experience from the perspective of big data to complete the aggregation, clustering, and visual presentation of knowledge. Using a combination of sample literature review, visualization technologies, knowledge map analysis, Carrot2 clustering, and other methodologies, this study intends to examine user experience from three perspectives: research state, hotspots, and trends. First, based on the double-map overlay, core institutions, core countries, core authors, core journals, and core references distribution research, the knowledge flow, research power, and research subjects (...) of user experience are analyzed. Secondly, through keyword clustering analysis, this research intuitively presents the research topics of user experience and reveals the research hotspots and the evolution path of research methods. Finally, with the help of the subject clustering algorithm, the emerging trends of user experience research are predicted: the immersive experience upgrade of multi-scenario integration, the innovative design of multi-role collaboration, and the cross-disciplinary interactive exploration of multi-discipline. Following this, the user experience knowledge map is constructed, providing a global view and macro-cognition for subsequent research. (shrink)

The theory of ‘Confucianization of law’ put forward by T’ung-tsu Ch’ü in his book titled Law and Society in Traditional China has a great academic influence in the world. However, ‘Confucianization...

Mencius, who often spoke of ming in different senses among which only one can be taken as fate, upheld two doctrines of fate--moral determinism and blind, unalterable fate--but he was prone to apply the former to collective entities, and the latter to individual persons. This bi-level distinction, which is at variance with the non-distinction in both Moism and Taoism, exercised a profound influence upon the minds of later Confucians.

Since 2016, drones have been deployed in various development projects in sub-Saharan Africa, where trials, tests, and studies have been rolled out in countries, including Tanzania, Uganda, Rwanda, Malawi, Ghana, and the Democratic Republic of the Congo. The use cases of drones vary, ranging from imagery collection to transportation of vaccines, lab samples, blood products, and other medical supplies. A wide range of stakeholders is involved, including governments, international organizations, educational institutions, as well as industry. Based on a field study (...) conducted in 2019, this article investigates how drones are used for medical supply delivery in Malawi-a country where the community is underserved for healthcare and related infrastructure underdeveloped, while airspace is largely open and regulations generally relaxed. The objective of presenting this case study is to contribute to the evidence regarding the rapid deployment of medical cargo drones across the African continent, and to spark critical reflections over the utility, suitability, and impacts of incorporating drones in the existing health supply chain systems in resource-poor settings. The discussion revolves around two aspects: 1) the emergent “African Drone Rise”-is it ok “as it is Africa”? and 2) the normative role of technology in the aid sector-is it “a solution looking for a problem”? In conclusion, a call for more structured guidance for the systematic examination and evaluation of the medical cargo drone case is raised. (shrink)

Multiplex networks have been widely used in information diffusion, social networks, transport, and biology multiomics. They contain multiple types of relations between nodes, in which each type of the relation is intuitively modeled as one layer. In the real world, the formation of a type of relations may only depend on some attribute elements of nodes. Most existing multiplex network embedding methods only focus on intralayer and interlayer structural information while neglecting this dependence between node attributes and the topology of (...) each layer. Attributes that are irrelevant to the network structure could affect the embedding quality of multiplex networks. To address this problem, we propose a novel multiplex network embedding model with high-order node dependence, called HMNE. HMNE simultaneously considers three properties: intralayer high-order proximity of nodes, interlayer dependence in respect of nodes, and the dependence between node attributes and the topology of each layer. In the intralayer embedding phase, we present a symmetric graph convolution-deconvolution model to embed high-order proximity information as the intralayer embedding of nodes in an unsupervised manner. In the interlayer embedding phase, we estimate the local structural complementarity of nodes as an embedding constraint of interlayer dependence. Through these two phases, we can achieve the disentangled representation of node attributes, which can be treated as fined-grained semantic dependence on the topology of each layer. In the restructure phase of node attributes, we perform a linear fusion of attribute disentangled representations for each node as a reconstruction of original attributes. Extensive experiments have been conducted on six real-world networks. The experimental results demonstrate that the proposed model outperforms the state-of-the-art methods in cross-domain link prediction and shared community detection tasks. (shrink)

With the rapid development of sports science, human motion recognition technology, as a new biometric recognition technology, has many advantages, such as noncontact target, long recognition distance, secret recognition process, and so on. Traditional human motion recognition technology is affected by environmental factors such as motion background, which is prone to rough edges of the recognized objects and loss of motion tracking information, thus further reducing the recognition accuracy. In this paper, the traditional snake model will be improved and optimized (...) to improve the defect of human motion model contour extraction, so as to realize the accurate repair of image contour; in terms of algorithm running time, this paper innovatively improves the construction process of the snake model, further improves the running time of model evaluation, and solves the concave contour problem of corresponding moving objects in the snake model. In order to solve the problem of accurate convergence, this paper improves the snake model of the average moving algorithm and sets the corresponding weight coefficient to distinguish the corresponding moving target background, so as to achieve the convergence of the differential concave contour. In order to verify the superiority of the improved optimized snake model, experiments are carried out in the corresponding database. The experimental results show that the contour of the moving object extracted by the improved snake model algorithm is complete and the segmentation effect is obvious. At the same time, the running speed of the whole algorithm has been significantly improved. (shrink)

Hier geht es um eine Auseinandersetzung mit Nicolai Hartmann unter dem Aspekt der Nächsten- und der Fernstenliebe. Der Autor kritisiert Hartmanns Auffassung der Nächstenliebe (für Hartmann Jenseits-Eudämo- nismus) und Fernstenliebe (für Hartmann Idealbild) und plädiert für eine Erweiterung des christlichen Begriffs des Nächsten und der Nächstenliebe, die vor allem die Zukunftsperspektive mit einschliesst und den Begriff «Fernstenliebe» überflüssig macht.

Given that there is no recent research on decomposition for global inequality, the aim of this study is to fill the gap in the literature by investigating global inequality with decomposition technique. The data of this study were compiled from the World Bank and decomposition by subgroups was conducted to evaluate the driving forces behind the evolution of inequality. Almost all the countries in the world were included in this study, and the study period spans from 2000 to 2017. The (...) analysis was carried out in several stages to evaluate the issue of North–South divide, as well as the impacts of regional and income subgroups. There are several salient findings derived from this study. First, the results show that there was a gradual decline of international inequality within the study period. Second, there was still a large disparity between the developed and developing countries, and the inequality within the developing countries has aggravated further. Third, geographical location has exerted great impacts on global inequality and East Asia contributed about 40% to the overall decline in international inequality. Fourth, decline in inequality amongst the upper-middle-income countries also contributed substantially to the fall in international inequality. The results derived from this paper can provide pertinent information for the formulation of a comprehensive and coherent strategy in coordinating international efforts and managing inequality while promoting human development under the framework of the newly established Sustainable Development Goals. (shrink)