ObjectivesTo simulate hemodynamic changes after extraluminal compression in pulsatile tinnitus patients with a prominent transverse-sigmoid sinus junction.MethodsOne patient-specific case was reconstructed based on computed tomography venography images of a PT patient. The compression degree served as a new index in this study. Cases with 10, 20, 30, 40, 50, 60, 70, 80, and 90% of the compression degree of the control subject were constructed. Steady-state computational fluid dynamics were assessed. The wall pressure distribution, wall maximum pressure and flow pattern of (...) the PTSJ were calculated to evaluate hemodynamic differences among all cases.ResultsWith increasing compression, the wall pressure at the compression point and downstream of the PTSJ decreased but increased upstream. When the compression degree exceeded 70%, the upstream pressure increased significantly. Above 50% compression, the blood flow pattern downstream of the sigmoid sinus tended to spiral, especially after 80% compression. Beyond 60% compression, the blood flow pattern under the compression axis became more medial.ConclusionMechanical compression of PTSJ changes wall pressure and blood flow patterns. The degree of compression should be carefully observed to avoid possible complications or reoccurrence. (shrink)

Li Zehou responds personally to the analyses of his ideas by Chong and Cauvel, acknowledging their summary evaluation while restating the main ideas of his publications, using his own vocabulary.

A neural network is a model of the brain’s cognitive process, with a highly interconnected multiprocessor architecture. The neural network has incredible potential, in the view of these artificial neural networks inherently having good learning capabilities and the ability to learn different input features. Based on this, this paper proposes a new chaotic neuron model and a new chaotic neural network model. It includes a linear matrix, a sine function, and a chaotic neural network composed of three chaotic neurons. One (...) of the chaotic neurons is affected by the sine function. The network has rich chaotic dynamics and can produce multiscroll hidden chaotic attractors. This paper studied its dynamic behaviors, including bifurcation behavior, Lyapunov exponent, Poincaré surface of section, and basins of attraction. In the process of analyzing the bifurcation and the basins of attraction, it was found that the network demonstrated hidden bifurcation phenomena, and the relevant properties of the basins of attraction were obtained. Thereafter, a chaotic neural network was implemented by using FPGA, and the experiment proved that the theoretical analysis results and FPGA implementation were consistent with each other. Finally, an energy function was constructed to optimize the calculation based on the CNN in order to provide a new approach to solve the TSP problem. (shrink)

This essay explores a seeming mystery in the philosophy of Xunzi (荀子310-238 BCE), namely how goodness could have emerged in a world of people with only a bad human nature. I will examine existing interpretations and present a new reading of Xunzi. My purpose is to reconstruct a coherent view in Xunzi‟s philosophy as presented in the book of the Xunzi rather than defend the truth of his claims regarding human history.

By inferences from fossil records and circumstantial evidences, it is now generally postulated that angiosperms have a much longer history than hitherto believed and that they have already existed probably in Jurassic time. Studies in vascular tissues and reproductive, structures have negated the possibility of originating angiosperms from various gymnosperm groups. Chronologically, this derivation will be also an impossibility.From a consideration of various aspects in the life history of angiosperms, a hypothesis is here presented postulating that protangiosperms originated in an (...) aquatic or subaquatic environment from an algal ancestry. The enclosure of ovules in the ovary is interpretated as a means of protection necessitated for the transmigration from an aquatic to an aerial habitat for the developing reproductive parts in the bud underwater. Trimery is suggested as a primitive condition, one that affords maximum efficiency in carrying out the purpose under the conditions.In the life history of angiosperms, the endosperm is of great significance in phylogeny. From morphological, physiological, cytological as well as genetical considerations, the endosperm should be regarded as of equal status with the gametophytic and sporophytic generations. There is no comparable structure in the gymnosperm groups and the ferns and “fern-allies”, while more or less similar conditions are present in the thallophytes. In the long life histories of many red algae, however, there is an especially notable resemblance to angiosperms, with certain details approaching the unique and characteristic features of the endosperms.Land plants are presumably all evolved from aquatic ancestors but instead of the usual concept of a monophyletic origin and lineal development of all vascular plants, a more plausible suggestion is the multiple and recurrent derivation of such plants from various algal ancestral groups. The angiosperms probably represent one of such major lines that originated more or less directly from a thallophytic ancestry. (shrink)

Mo Tzu was active in ancient China's academic world during the late Spring and Autumn period and the early Warring States period when the slave system collapsed and the feudal system was gradually established. During this time of radical social change, class antagonism and struggle were acute, and ideological and theoretical struggles were fierce. According to the social classes to which they belonged, thinkers from different social classes and strata gave different answers for the existing social problems. As a result, (...) many schools of thought emerged, and "a hundred schools of thought contended." Among these schools of thought, advocates of Confucianism and followers of Mo Tzu were the most influential. Mutual repudiations developed between the advocates of Confucianism and the followers of Mo Tzu and between the followers of Mo Tzu and the advocates of Yang Tzu. Therefore, criteria for correct opinions became an important question in society. On this question, Mo Tzu voiced his views and conducted a thorough investigation. (shrink)

The development of biotechnologies has broadly interfered with a number of life processes, including human birth. An important moral question arises from the application of such medical technologies to birth: do biotechnological advancements violate human dignity? Many valid arguments have been raised. Yet bioethicists are still far from reaching a consensus on how best to protect the dignity of human birth. Confucianism is an influential ethical theory in China and presents a distinctive understanding of human dignity. In this paper, we (...) reconstruct the two Confucian concepts of dignity—namely, universal dignity and personal dignity. We then apply these concepts to human birth in the context of biotechnologies involving embryos and genetic enhancement. We conclude that the dual Confucian understanding of dignity contributes a valuable perspective to the question of whether biotechnologies related to human birth violate human dignity. (shrink)

Using listed firms in China over the period 2010–2018, we investigate the association between directors’ network and quality of corporate social responsibility (CSR) disclosure from the lens of resource-based view. We find a significantly positive effect of directors’ network centrality on the CSR disclosure quality, and the effect is more pronounced when the firm (1) invests less in advertising; (2) is followed by less analysts; (3) is less financially constrained; and (4) has no assurance of sustainability report. Furthermore, we document (...) that independent directors’ network centrality is positively associated with CSR disclosure quality. Our findings have important implication for practitioners, policy makers, and regulators. (shrink)

本研究得到国家社会科学基金“法制与法治国家”重大项目、教育部“社会变迁中的中国法治的理论与实践”项目以及北京大学“985”项目的资助.

Past research demonstrates that mood can influence level of perceptual processing (global vs. local). The present research shows that level of perceptual processing can influence mood as well. In four studies, we manipulated people’s level of perceptual processing using a Navon letter task (Study 1), landscape scenery (Study 2), and Google Maps Street View images (Studies 3 and 4). Results from these studies and a meta-analysis support the conclusion that global processing results in higher happiness than local processing. In conjunction (...) with previous findings that mood affects level of cognitive processing, these results suggest that the link between level of processing and mood may be reciprocal and bidirectional. (shrink)

In this paper, the Internet of Things with intelligent face perception and processing function is used to supervise online English teaching. In the intelligent learning environment, learners mainly learn by watching the information presentation screen of the learning content, i.e., the learning screen, which is the main environment for learners to learn and is the main channel for information interaction between learners and the learning content. The color matching, layout, graphic decoration, and background texture of the learning screen have a (...) significant impact on learners’ emotions, interests, motivation, and effect in the learning process. On the contrary, the accurate identification of learners’ emotions is the basis for building a harmonious emotional interaction in the wisdom learning environment and is an important means to judge learners’ learning status, which is of great significance to promote learners’ wisdom learning. In addition to providing learners with personalized learning contents and learning paths, the learning images presented by the intelligent learning environment should also be compatible with learners’ emotional states and visual emotional preferences and can play a role in regulating and stimulating learners’ learning emotions. The system works well in the testing process, which verifies the feasibility, rationality, and effectiveness of our application of face perception to online teaching effectiveness monitoring, and can be combined with the old result-oriented effectiveness monitoring method for online teaching, with certain theoretical research significance and practical application value. (shrink)

This article offers a study of the early formation and development of the ideal of harmony in ancient Chinese philosophy and ancient Greek philosophy. It shows that, unlike the Pythagorean notion of harmony, which is primarily based on a linear progressive model with a pre-set order, the ancient Chinese concept of harmony is best understood as a comprehensive process of harmonization. It encompasses spatial as well as temporal dimensions, metaphysical as well as moral and aesthetical dimensions. It is a fundamentally (...) open notion in the sense that it does not aim to conform to any pre-set order. This broader, richer, and more liberal understanding of harmony has had a profound influence on Chinese culture as whole in its long history. (shrink)

A total of 1,281 Chinese students in grades 3–6 participated in a study that examined the relationships among student-perceived supportive learning environment, mathematical achievement, autonomous self-regulation, and creative thinking. The results demonstrated that student PSLE is positively associated with autonomous self-regulation, creative thinking, and mathematical achievement. In addition, the study also demonstrated that the influence of PSLE on students’ mathematical achievements could be mediated through autonomous self-regulation and creative thinking, respectively. The results shed light on the effectiveness of a supportive (...) learning environment on educational and psychological outcomes in Chinese mathematical classrooms. (shrink)

Throughout the developing world, it is a well-documented fact that women farmers tend to get lower yields than their male counterparts. Typically this is attributed to disproportionate access to high-quality inputs and labor, with some even arguing there could be a skills-gap stemming from unbalanced access to training and education. This article examines the gender-based yield gap in the context of Zambian maize producers. In addition to the usual drivers, we argue that Zambia’s patriarchal and multi-tiered land distribution system could (...) disfavor women with respect to accessing quality soils. We are uniquely able to control for soil characteristics using farm data from a sample of 1573 fields with accompanying soil analysis. We find an expected difference in yields, but no evidence of a gap in unobserved characteristics, like skill, after controlling for access to inputs, especially quality soil, suggesting women are indeed disproportionately disadvantaged. We discuss how our findings could be used to develop self-targeting policy interventions that could empower women and would be consistent with the government’s stated equity goals. (shrink)

Humor and social dilemmas are two disparate areas that have been linked to emotions. However, they tend to have been studied apart from considerations of emotion and emotional expression. We provide an overview of how such areas might be illuminated by Vigil's socio-relational framework, and how capacity and trustworthiness are communicated in humor and social dilemmas.

100個故事，帶您進入哲學的深邃思想領域，讓您更深層的了解人生！ 羅馬的哲人西塞羅（Cicero）說：「哲學！人生之導師，至善之良友，罪惡之勁敵，假使沒有你，人生又值得什麼！」 本書將帶您步入100個哲學故事，在使您在領略哲學理論的同時，又能真切體味到哲學的韻味。從而使您享受到思想之光的照耀。 書中的每個故事都饒有趣味，極具經典性和代表性，它們濃縮了哲學的精髓。閱讀這些故事，挖掘、汲取含蘊於其中的哲理智慧，不僅可以對哲學的歷史、思想和人物有更真切的理解，還能獲得啟迪，對事業、生活和感情有所幫 助。 本書透過頗具文化韻味的設計、豐富的圖片、簡約大方的版式等各種要素的有機配合，營造了一個輕鬆有趣且充滿文化氣息的閱讀空間，使讀者能感受到文化與藝術的雙重薰陶，獲得一種難以言傳的美妙感受。 無論您是疲倦時，還是休閒時，打開本書，它都將給您最溫馨的感受、智慧的啟迪，在撫慰您精神的同時，讓您的思想得當進一步的昇華。.

本书分为“关于我军的治军方略”、“关于我军的作战艺术”两部分,内容包括:得民心、聚军心、造就军事人才、重视和改善物质条件、科学制定体制编制等.