Problematic smartphone use in college students has been a major public health concern in modern society, which may also lead to adverse health outcomes. Using a three-wave longitudinal study design, the current study aimed to examine the prevalence and psychosocial factors of PSU in a large sample of Chinese college students. The data used in this study was obtained from an ongoing longitudinal study in Guangdong, China. In the current study, a total of 7,434 freshmen and sophomores who completed the (...) first three surveys were included. Self-administered questionnaires were used to assess PSU, possible social anxiety disorders, depressive symptoms, loneliness, family conflicts, academic stress, and some demographic characteristics. Generalized estimating equation models were performed to determine the risk factors associated with PSU. The results showed that 65.8, 58.1, and 52.8% of college students reported PSU at three waves, with an apparent downward trend. Female students reported higher prevalence rates of PSU than males. Depressive symptoms, possible social anxiety disorders, loneliness, family conflicts, and high academic pressure were important risk factors for PSU. Early intervention and identification of those who show signs of PSU may prevent the development of maladaptive coping responses and addictive behaviors, so as to prevent future negative psychosocial consequences. (shrink)

It has been proposed that processing sentential negation recruits the neural network of inhibitory control. In addition, inhibition mechanisms also play a role in switching languages for bilinguals. Since both processes may share inhibitory resources, the current study explored for the first time whether and how language-switching influences the processing of negation. To this end, two groups of Spanish-English bilinguals participated in an encoding-verification memory task. They read short stories involving the same two protagonists, referring to their activities in four (...) different scenarios in Spanish or English. Following each story, the participants received verification questions requiring “yes” or “no” responses depending on whether a given fact was correctly referred to one of the protagonists. Some of the verification questions were in the story’s original language and others in the alternate language. Results revealed that language-switching facilitated negative responses compared to affirmative responses, exclusively for questions switching from dominant language to non-dominant language. This effect might reflect that the domain-general mechanisms of inhibitory control are recruited at least partially for both language switch and negation process simultaneously, although this phenomenon is modulated by language dominance. (shrink)

Transcranial Photobiomodulation has demonstrated its ability to alter electrophysiological activity in the human brain. However, it is unclear how tPBM modulates brain electroencephalogram networks and is related to human cognition. In this study, we recorded 64-channel EEG from 44 healthy humans before, during, and after 8-min, right-forehead, 1,064-nm tPBM or sham stimulation with an irradiance of 257 mW/cm2. In data processing, a novel methodology by combining group singular value decomposition with the exact low-resolution brain electromagnetic tomography was implemented and performed (...) on the 64-channel noise-free EEG time series. The gSVD+eLORETA algorithm produced 11 gSVD-derived principal components projected in the 2D sensor and 3D source domain/space. These 11 PCs took more than 70% weight of the entire EEG signals and were justified as 11 EEG brain networks. Finally, baseline-normalized power changes of each EEG brain network in each EEG frequency band were quantified during the first 4-min, second 4-min, and post tPBM/sham periods, followed by comparisons of frequency-specific power changes between tPBM and sham conditions. Our results showed that tPBM-induced increases in alpha powers occurred at default mode network, executive control network, frontal parietal network and lateral visual network. Moreover, the ability to decompose EEG signals into individual, independent brain networks facilitated to better visualize significant decreases in gamma power by tPBM. Many similarities were found between the cortical locations of SVD-revealed EEG networks and fMRI-identified resting-state networks. This consistency may shed light on mechanistic associations between tPBM-modulated brain networks and improved cognition outcomes. (shrink)

本书以认识的主体性为研究对象,对哲学史上的认识的主体性思想、自然科学家的认识的主体性思想、认识的主体性原理、认识的主体性的微观机制、认识的主体性的宏观根源、研究认识的主体性的意义等问题作了专题的研究。 .

本书对实践的主体性的一些相关问题作了比较系统的研究,着重发掘和整理了马克思主义哲学关于实践的主体性的思想。.

Engineering failure investigations seek to reconstruct the actual causes of major engineering failures. The investigators need to establish the existence of certain past events and the actual causal relationships that these events bear to the failures in question. In this paper, I examine one method for reconstructing the actual causes of failure events, which I call "feature dependence". The basic idea of feature dependence is that some features of an event are informative about the features of its causes; therefore, the (...) investigators can use the features of a known failure event to reconstruct details of its causes. I make explicit the structure of feature dependence and the evidential basis of its key premises, and show how feature dependence works in the investigation of the American Airlines Flight 191 accident. (shrink)

There are three main problems in track fastener defect detection based on image: The number of abnormal fastener pictures is scarce, and supervised learning detection model is difficult to establish. The potential data features obtained by different feature extraction methods are different. Some methods focus on edge features, and some methods focus on texture features. Different features have different detection capabilities, and these features are not effectively fused and utilized. The detection of the track fastener clip will be interfered by (...) the track fastener bolt subimage. Aiming at the above three problems, a method for track fastener defects detection based on Local Deep Feature Fusion Network is proposed. Firstly, the track fastener image segmentation method is used to obtain the track fastener clip subimage, which can effectively reduce the interference of bolt subimage features on the track fastener clip detection. Secondly, the edge features and texture features of track fastener clip subimages are extracted by Autoencoder and Restricted Boltzmann Machine, and the features are fused. Finally, the similarity measurement method Mahalanobis Distance is used to detect defects in track fasteners. The effectiveness of the proposed method is verified by real Pandrol track fastener images. (shrink)

[v. 1]. Gu dai juan -- [v. 2-3]. Jin dai juan -- [v. 4]. Xian dai juan.

Noted logician and philosopher addresses various forms of mathematical logic, discussing both theoretical underpinnings and practical applications. After historical survey, lucid treatment of set theory, model theory, recursion theory and constructivism and proof theory. Place of problems in development of theories of logic, logic’s relationship to computer science, more. Suitable for readers at many levels of mathematical sophistication. 3 appendixes. Bibliography. 1981 edition.

Wang Hui asks what it means for China to be modern and for modernity to be Chinese. Is there a rupture between tradition and modernity in China? How has Confucian thought evolved? Did China become modern in the Middle Ages? A deep intellectual history, The Rise of Modern Chinese Thought revises our senses of both modernity and Chinese philosophy.

本书按文章的相关相近性质分为三卷:第一卷的主要内容是专著美感教育研究和有关美学美育,现实美,自然美诸问题的文章;第二卷既有论述马克思主义经典作家关于悲剧,艺术的不朽魅力和美的规律等方面的思想的文章,又 有探讨我国古代美学思想,特别是音乐美学思想的文章,还有评述马克思主义美学家蔡仪美学思想的一组文章;第三卷的主要部分是探讨体育与美育的关系以及体育运动美的特点,种类和欣赏等问题的论著,还有关于社会主义文 学与人道主义,与人情,与意识形态性等的关系的文章.

本書採取史論結合的研究方法，堅持邏輯與歷史統一的原則，從儒學發展史的角度及易學哲學的高度，提煉出陳法哲學思想研究的若干重要命題，並以此為基礎展開系統研究；同時注重研究的學理性，緊密貼近陳法思想的本原， 既深入挖掘陳法哲學思想豐富的內涵，又充分展現其獨特個性色彩。本書使陳法哲學思想的原貌得以完整呈現，為系統研究中國易學和儒學發展史，為進一步深入研究貴州地方思想文化，提供有益參考和借鑒。.

Too often Buddhism has been subjected to the Procrustean box of western thought, whereby it is stretched to fit fixed categories or had essential aspects lopped off to accommodate vastly different cultural norms and aims. After several generations of scholarly discussion in English-speaking communities, it is time to move to the next hermeneutical stage. Buddhist philosophy must be liberated from the confines of a quasi-religious stereotype and judged on its own merits. Hence this work will approach Chinese Buddhism as a (...) philosophical tradition in its own right, not as an historical after-thought nor as an occasion for comparative discussions that assume the west alone sets the standards for or is the origin of philosophy and its methodologies. Viewed within their own context, Chinese Buddhist philosophers have much to contribute to a wide range of philosophical concerns, including metaphysics, epistemology, ethics, philosophy of language, philosophy of mind, and philosophy of religion, even though Western divisions of philosophy may not exhaust the rich contents of Chinese Buddhist Philosophy. (shrink)

作者通过讲述古希腊罗马哲学家丰富的思想和观点,探讨西方哲学精神的起源,揭示西方民族的精神取向,阐明西方民族思维方式的特征,帮助读者把握西方哲学的基本精神,养成理论思维的能力,培养高尚的情操,全面提高人 文素质.