One of the most significant challenges in the application of brain-computer interfaces is the large performance variation, which often occurs over time or across users. Recent evidence suggests that the physiological states may explain this performance variation in BCI, however, the underlying neurophysiological mechanism is unclear. In this study, we conducted a seven-session motor-imagery experiment on 20 healthy subjects to investigate the neurophysiological mechanism on the performance variation. The classification accuracy was calculated offline by common spatial pattern and support vector (...) machine algorithms to measure the MI performance of each subject and session. Relative Power values from different rhythms and task stages were used to reflect the physiological states and their correlation with the BCI performance was investigated. Results showed that the alpha band RP from the supplementary motor area within a few seconds before MI was positively correlated with performance. Besides, the changes of RP between task and pre-task stage from theta, alpha, and gamma band were also found to be correlated with performance both across time and subjects. These findings reveal a neurophysiological manifestation of the performance variations, and would further provide a way to improve the BCI performance. (shrink)

Resumo: Para Paul Auster, um quarto é, em essência, “a própria substância da solidão”, uma solidão espacialmente definida. Nesse sentido, o fenômeno transcendeu suas limitações físicas e assumiu significado existencial e filosófico. Em seus escritos, uma sala é, antes de tudo, um espaço arquitetônico que um escritor solitário ocupa; além disso, é metaforizado como a mente que é a sala - um espaço construído intelectualmente; e, por fim, é um lugar narrado em suas histórias, onde seus personagens meditam e compõem, (...) um espaço que existe em palavras. O artigo realiza estudos sobre os escritos da vida de Auster e uma de suas ficções, Homem no Escuro, para apresentar a complexidade das três formas de quartos solitários e sua mútua inclusão na solidão intersubjetiva. (shrink)

Resumo: Chuang Tzu (《庄子》), como um cânone tradicional chinês, foi traduzido para o inglês por mais de 100 anos, desde 1881, conquistando com sucesso um nicho no reino da literatura mundial, que se tornou um evento cultural devastador na academia de sinologia ultramarina e literatura mundial. Segundo as estatísticas, o livro foi traduzido em 12 traduções completas, 50 traduções selecionadas e duas adaptações. No processo de metamorfose da “tradução completa - tradução profunda - retradução diversificada”, passou por quatro fases, nomeadamente (...) fases religiosas, literárias, filosóficas e reinterpretações diversificadas. Assim, na perspectiva da visão de Damrosch a respeito da literatura mundial, o artigo resume as características de diferentes estágios, com base em diferentes contextos espaço-temporais. À luz da forma tradutória, dos resultados tradutórios e do modo de leitura tradutória, especifica-se o caminho pelo qual Chuang Tzu entrou no campo da literatura mundial, para apreender o mecanismo operacional de promoção da literatura nacional à literatura mundial, que se dedica ao esclarecimento para o trabalho prático de tradução da introdução da literatura chinesa no exterior. Enquanto isso, revisando a história das traduções inglesas de Chuang Tzu, o artigo resume as deficiências das atuais atividades de tradução e pesquisa, com a tentativa de fornecer sugestões construtivas, bem como apontar a direção para o desenvolvimento futuro de estudos de Chuang Tzu no exterior. (shrink)

Resumo: Como uma heresia confucionista, Mozi inicialmente chamou a atenção do missionário inglês Joseph Edkins, em 1858. Posteriormente, o missionário holandês Johann Jakob Maria de Groot traduziu a Doutrina Funerária de Mozi, que tem fortes tonalidades religiosas. Joseph e Groot, que representavam os missionários do protestantismo, interpretaram Mozi em uma variedade de narrativas teológicas. Os dois missionários, que procuravam conexões entre Mozi e o cristianismo, consideravam Mozi um cânone teológico, contendo doutrina cristã. Eles também atacaram o confucionismo, a antítese do (...) cristianismo, apontando que Mozi era um herege, na tradição confuciana. Através dessa imaginação religiosa sobre Mozi, mais missionários e sinologistas se juntaram à tradução de Mozi, e a jornada da transmissão do cânone para o Ocidente começou. (shrink)

Many applications of intuitionistic fuzzy sets depend on ranking or comparing intuitionistic fuzzy numbers. This paper presents a novel ranking method for intuitionistic fuzzy numbers based on the preference attitudinal accuracy and score functions. The proposed ranking method considers not only the preference attitude of decision maker, but also all the possible values in feasible domain. Some desirable properties of preference attitudinal accuracy and score functions are verified in detail. A total order on the set of intuitionistic fuzzy numbers is (...) established by using the proposed two functions. The proposed ranking method is also applied to select renewable energy. The advantage and validity of the proposed method are shown by comparing with some representative ranking methods. (shrink)

Resumo: O clássico cultural chinês Chuang Tzu foi amplamente traduzido para versões em inglês, durante o século passado. Como resultado, essas traduções em inglês refletem, parcialmente, a conceituação da China antiga que mudou, ao longo do tempo, entre os falantes de inglês de outras nações. Desse modo, o presente artigo investiga as imagens reconstruídas da China antiga, tal como se manifestam nas refrações e transcriações das traduções inglesas de Chuang Tzu, as quais foram interpretadas por tradutores estrangeiros, a partir da (...) perspectiva da imagologia na literatura comparada. Todos esses fatos contribuíram para a descoberta de inúmeras imagens nacionais, através da exploração de Chuang Tzu do mundo anglófono, incluindo uma China antiga mestiça, uma China antiga misteriosa, uma China antiga ecológica e uma China antiga multifacetada. O mecanismo operacional da comunicação translacional sino-estrangeira foi elucidado através de um exame cuidadoso das variações das imagens, a fim de melhor compreender como os ocidentais constroem sua percepção geral sobre a nação oriental. (shrink)

In speaker recognition systems, feature extraction is a challenging task under environment noise conditions. To improve the robustness of the feature, we proposed a multiscale chaotic feature for speaker recognition. We use a multiresolution analysis technique to capture more finer information on different speakers in the frequency domain. Then, we extracted the speech chaotic characteristics based on the nonlinear dynamic model, which helps to improve the discrimination of features. Finally, we use a GMM-UBM model to develop a speaker recognition system. (...) Our experimental results verified its good performance. Under clean speech and noise speech conditions, the ERR value of our method is reduced by 13.94% and 26.5% compared with the state-of-the-art method, respectively. (shrink)

This book presents a systematic design methodology for decoding the interior structure of the Antikythera mechanism, an astronomical device from ancient Greece. The historical background, surviving evidence and reconstructions of the mechanism are introduced, and the historical development of astronomical achievements and various astronomical instruments are investigated. Pursuing an approach based on the conceptual design of modern mechanisms and bearing in mind the standards of science and technology at the time, all feasible designs of the six lost/incomplete/unclear subsystems are synthesized (...) as illustrated examples, and 48 feasible designs of the complete interior structure are presented. This approach provides not only a logical tool for applying modern mechanical engineering knowledge to the reconstruction of the Antikythera mechanism, but also an innovative research direction for identifying the original structures of the mechanism in the future. In short, the book offers valuable new insights for all readers who are interested in the Antikythera mechanism. (shrink)

近年來關於賽伯格與後人類主義的論述在西方世界方興未艾，論者紛紛從科學、醫學、宗教、哲學、倫理學、社會學、文學與文化研究等各個不同面向思考人們正在經歷的後人類世界。但對一般中文讀者而言，這兩個新詞彙所指 涉的意義仍相當模糊。本書收錄了國內外關於賽伯格與後人類主義的重要論文，嘗試探討人與科技、身體與環境、精神與物質兩者界線逐漸消弭的後人類社會裡的危機與轉機。本書討論之內容相當廣泛，除了探討大眾文化所透露 出的哲學內涵，也從生態文學談到科幻小說，本身即為一部賽伯格文本，不但充斥著許多有意思的矛盾或裂縫，也跨越了各個不同的學門界線，多元豐富的內容相信能夠給予中文讀者提供一個從文學、文化研究角度思索賽伯格與 後人類的獨特視野。.

本书从时代特征出发,通过大量生动的事实,以及马克思、恩格斯、列宁、毛泽东、邓小平和江泽民同志的著作,论述了马克思主义不断发展的理论。.

Classification learning is a preeminent human ability within the animal kingdom but the key mechanisms of brain networks regulating learning remain mostly elusive. Recent neuroimaging advancements have depicted human brain as a complex graph machinery where brain regions are nodes and coherent activities among them represent the functional connections. While long-term motor memories have been found to alter functional connectivity in the resting human brain, a graph topological investigation of the short-time effects of learning are still not widely investigated. For (...) instance, classification learning is known to orchestrate rapid modulation of diverse memory systems like short-term and visual working memories but how the brain functional connectome accommodates such modulations is unclear. We used publicly available repositories (openfmri.org) selecting three experiments, two focused on short-term classification learning along two consecutive runs where learning was promoted by trial-by-trial feedback errors, while a further experiment was used as supplementary control. We analyzed the functional connectivity extracted from BOLD fMRI signals, and estimated the graph information processing in the cerebral networks. The information processing capability, characterized by complex network statistics, significantly improved over runs, together with the subject classification accuracy. Instead, null-learning experiments, where feedbacks came with poor consistency, did not provoke any significant change in the functional connectivity over runs. We propose that learning induces fast modifications in the overall brain network dynamics, definitely ameliorating the short-term potential of the brain to process and integrate information, a dynamic consistently orchestrated by modulations of the functional connections among specific brain regions. (shrink)

Previous studies have explored the impact of the cost ratio of individual solutions versus collective solutions on people’s cooperation tendency in the presence of individual solutions. This study further explored the impact of team credibility on people’s propensity to cooperate in the presence of individual solutions. Study 1 investigated the influence of different level of altruistic tendencies or the self-interest tendencies of teammates on participants’ decision-making. Study 2 explored the influence of the distribution of altruistic tendencies or self-interest tendencies on (...) participants’ decision-making. The results of Study 1 showed that the proportion of participants who chose the collective solution increased with an increase in the altruistic tendencies of the team. When the altruistic tendencies of the teammates reached a certain value, the proportion of participants taking the collective solution showed a trend to stabilize. Furthermore, the proportion of participants who chose the individual solution increased with the increase in the self-interest tendencies of the team. When the self-interest tendencies of the teammates reached a certain value, the individual solution was stably adopted. The results of Study 2 showed that with the total altruistic tendency remaining unchanged, the more altruistic group members that altruistic tendencies were allocated to, the higher a participant’s level of trust in the team would be, which showed the decentralized effect of altruistic tendencies. In the case that the total self-interest tendency was unchanged, the fewer self-interest group members the self-interest tendencies were allocated to, the higher a participant’s level of trust in the team would be, which showed the convergent effect of self-interest tendencies. (shrink)