Background: Previous systematic review indicated the prevalence of prenatal anxiety as 14–54%. Pregnant women are a high-risk population for COVID-19. However, the prevalence of anxiety symptoms and related factors is unknown in Chinese pregnant women during COVID-19 outbreak.Objective: To investigate the prevalence of anxiety symptoms and the related factors in Chinese pregnant women who were attending crisis intervention during the COVID-19 pandemic.Methods: The data of this cross-sectional study were collected in about 2 months. Data analysis was performed from April to (...) May 2020. Participants completed a set of questionnaires via the Wechat Mini-program before starting the online self-help crisis intervention for COVID-19 epidemic. A total of 2,120 Chinese pregnant women who were attending a self-help crisis intervention participated in this study. A survey was developed to address possible stress-related factors in pregnant women during the COVID-19 outbreak, including demographic, socioeconomic, and pregnancy-related factors, as well as COVID-19 related factors. Generalized Anxiety Disorder-7 scale and the 10-item perceived stress scale were, respectively, employed to measure anxiety and stress-related factors.Results: A total of 21.7% of pregnant women reported at least mild anxiety, and only 82 women reported moderate to severe anxiety. Factors associated with at least mild anxiety included living in Hubei province, nobody providing everyday life support, pelvic pain or vaginal bleeding, and higher perceived stress. Having relatives or neighbors with a diagnosis of COVID-19 was not associated with anxiety.Conclusions and Relevance: Our findings indicate that evaluation and intervention for maternal and infant health are necessary in pregnant women with anxiety during COVID-19 epidemic, especially those with higher perceived stress, less everyday life support, or vaginal bleeding. Interactions among these related medical, social and psychological factors need to be investigated in future studies. (shrink)

本书包括:系统自然观、演进自然观、生态自然观、科学技术观、历史科学技术观、社会科学技术观等.

周王室东迁以后，学术重心由王官逐渐移向民间，自老子、孔子、墨子以后，一时大思想家辈出，如孟子、庄子、荀子、韩非子等，皆能著书立说，而成一家之言，后世因称这些思想家为“先秦诸子”。先秦诸子的学说在中国思 想史上占有崇高地位，后世思想学派莫不渊源于此，诸子著作是了解中国古代社会政治、经济、文化的宝贵资料。本书对诸子思想进行了详细的分析，有很高的学术价值。.

Optimal shelflisting invites profit maximization to become sensitive to the ways in which purchasing decisions are order-dependent. We study the computational complexity of the corresponding product arrangement problem when consumers are either rational maximizers, use a satisficing procedure, or apply successive choice. The complexity results we report are shown to crucially depend on the size of the top cycle in consumers’ preferences over products and on the direction in which alternatives on the shelf are encountered.

ObjectiveThe large-scale epidemic of Coronavirus Disease 2019 has triggered unprecedented physical and psychological stress on health professionals. This study aimed to investigate the prevalence and risk factors of burnout syndrome, and the relationship between burnout and depressive symptoms among frontline medical staff during the COVID-19 epidemic in China.MethodsA total of 606 frontline medical staff were recruited from 133 cities in China using a cross-sectional survey. The Maslach Burnout Inventory was used to assess the level of burnout. Depressive symptoms were assessed (...) by the Patient Health Questionnaire Depression.ResultsDuring the COVID-19 pandemic, 36.5% of the medical staff experienced burnout. Personal and work-related factors were independently associated with burnout, including age, family income, having physical diseases, daily working hours, and profession of nurse. The correlation coefficients between the scores of each burnout subscale and the scores of depressive symptoms were 0.57 for emotional exhaustion, 0.37 for cynicism, and −0.41 for professional efficacy.ConclusionsOur findings suggest that the prevalence rate of burnout is extremely high among medical staff during the COVID-19 pandemic, which is associated with other psychological disorders, such as depression. Psychological intervention for medical staff is urgently needed. Young and less experienced medical staff, especially nurses, should receive more attention when providing psychological assistance. (shrink)

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)

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.

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.

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)