Based on its productionguideline, organic agriculture has set foritself the goals of minimizing all forms ofpollution and maintaining sustainability of thefarming system. By striving for these goals,organic farming meets the demands of anincreasing number of consumers who are criticalof conventional production methods. This papergives an overview of the present state of theart in the different issues. Possibilities ofand limitations in performing the self-aimedgoals under the basic standards of organicagriculture are discussed. Concerningenvironmental protection, in general, the riskof adverse environmental effects is (...) lower withorganic than with conventional farming methods,though not necessarily so; with reference tosoil fertility and nutrient management, organicfarming is suited to improve soil fertility andnutrient management markedly on the farm level;regarding biodiversity, comparison studies showthat organic farming has more positive effectson biodiversity conservation; in relation toproduct quality, under the basic standards oforganic farming, there is no sufficientevidence for a system-related effect on productquality due to the production method. (shrink)

Understanding the neural basis of schizophrenia (SZ) is important for shedding light on the neurobiological mechanisms underlying this mental disorder. Structural and functional alterations in the anterior cingulate cortex (ACC), dorsolateral prefrontal cortex (DLPFC), hippocampus, and medial prefrontal cortex (MPFC) have been implicated in the neurobiology of SZ. However, the effective connectivity among them in SZ remains unclear. The current study investigated how neuronal pathways involving these regions were affected in first-episode SZ using functional magnetic resonance imaging (fMRI). Forty-nine patients (...) with a first-episode of psychosis and diagnosis of SZ—according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision—were studied. Fifty healthy controls (HCs) were included for comparison. All subjects underwent resting state fMRI. We used spectral dynamic causal modeling (DCM) to estimate directed connections among the bilateral ACC, DLPFC, hippocampus, and MPFC. We characterized the differences using Bayesian parameter averaging (BPA) in addition to classical inference (t-test). In addition to common effective connectivity in these two groups, HCs displayed widespread significant connections predominantly involved in ACC not detected in SZ patients, but SZ showed few connections. Based on BPA results, SZ patients exhibited anterior cingulate cortico-prefrontal-hippocampal hyperconnectivity, as well as ACC-related and hippocampal-dorsolateral prefrontal-medial prefrontal hypoconnectivity. In summary, spectral DCM revealed the pattern of effective connectivity involving ACC in patients with first-episode SZ. This study provides a potential link between SZ and dysfunction of ACC, creating an ideal situation to associate mechanisms behind SZ with aberrant connectivity among these cognition and emotion-related regions. (shrink)

Recent research indicates that social networking site addiction is positively associated with materialism. However, little attention has been paid to the potential mechanisms in this relationship. This study tested the mediating role of depression and the moderating role of need to belong in the relationships between SNS addiction and adolescents’ materialism. This research model was tested among 733 adolescents in China. The findings indicated that both SNS addiction and NTB were positively related to adolescents’ materialism. Mediation analyses showed that depression (...) mediated the association between SNS addiction and adolescents’ materialism. Moderated mediation indicated that the effect of SNS addiction on materialism and the effect of SNS addiction on depression were exacerbated by NTB. This study can advance our understanding of how SNS could contribute to adolescents’ materialism in this digital society. (shrink)

Ben shu nei rong bao kuo: ren lei wei he ru ci duo shi; dong fang gu dian de Afanda Wutuobang; sheng ren jiu jing wei shui xiao lao; zhi li de xian du yu xu wei you guo lun; deng gao si wang, man mu zhu ji hai shi man mu la ji; nan yi yong yu yan wen zi biao da yu chuan shou de da dao deng.

Science, the proud son of the era and the crystallization of man's wisdom, is inlaid in the crown of our times like a lustrous and brilliant pearl. Social science discloses to mankind the general law governing the development of society and leads it in marching forward to the higher stages of social system - socialist society and communist society. Natural science creates for mankind tremendous productive forces like miracles, enabling the human race to live a life in fairyland. Who is (...) there who does not praise the power of science and refuses to admit that science is the great force pushing history forward? Who is there that dares openly to set up forbidden zones in science, thus serving as an executioner to strangle science? In our times, people who dare openly to do this, perhaps, are increasingly few. However, this does not mean that science can completely extricate itself from disaster. Science has to pay dearly for every step of exploration and has to undergo a stern struggle for it. Science is an undertaking that is most creative and filled with the spirit of innovation. It openly declares that it will wage an irreconcilable struggle against all the old stuff which is reactionary, dark, ignorant and superstitious. Because of this, it is bound to suffer bans and buffets from the reactionary forces. Science has no forbidden zone! This is a call of reason; but there are forbidden zones in science, and that is what we see in the picture of history and reality. What are the forbidden zones? And how should we destroy the forbidden zones and set science free? For many years Lin Biao and the "gang of four" brought terrible disasters to science. In consequence, the aforementioned question is sharply raised before us, requiring us to deal with it strictly and try to resolve it correctly. (shrink)

本书内容包括:“给我一个支点吧”;知、情、意、信的统一;对马克思主义的信仰是我们的精神动力、做一个有益于人民的人等。.

Ben shu dui Luling Wang xue de yan jiu, zhu yao cong yi xia liang fang mian zhan kai: shou xian, zhong dian jie shao le ti chu Luling Wang xue de li lun yi ju he Luling Wang xue fa zhan de ge ge jie duan de jie ding, te dian ji qi zhu yao de dai biao ren wu. Qi ci, ju ti lun shu le Luling Wang xue fa zhan de ge ge jie duan de zui (...) zhu yao dai biao ren wu de zhi xue li lu, xin xue si xiang, jing xue te dian. Tong guo dui Luling Wang xue zong ti shang de yan jiu, gai kuo he zheng li yi ji dui ge ge fa zhan jie duan zhu yao de dai biao ren wu Wang xue si xiang de bu tong shi jiao de tan tao chan fa, cong zong ti shang rang shi ren jiao wei xi tong de liao jie Luling Wang xue de gai mao ji qi cao chuang, fa zhan, ding sheng ji shi wei de li shi guo cheng he zhong yao dai biao ren wu de Wang xue si xiang. Tong shi, zai qian mian yan jiu de ji chu shang, dui Luling Wang xue zai Jiang you Wang xue nai zhi Yangming hou xue fa zhan guo cheng zhong de zhong yao di wei yi ji dui zhong wan Ming ru xue si xiang fa zhan de ying xiang zuo le zong jie. (shrink)

The earliest extant mathematical books from China contain a lot of problems and data about grains. They also betray a close relationship with imperial bureaucracy in this respect. Indeed, these texts quote administrative regulations about grains. For instance, the Book on mathematical procedures 筭數書, found in a tomb sealed ca. 186 BCE, has a section in common with the “regulations on granaries” from the Qin statutes in eighteen domains, known thanks to slips excavated at Shuihudi. Mathematical writings also deal with (...) official vessels used to measure grains. They cast light on statements from, and practices evidenced by, official histories and administrative documents. This article addresses the following issues. Which information about the concrete management of grains can we derive from mathematical writings in relation to administrative documents? Which data can we find in these writings about continuities and changes in the management of grains in the time span between the Qin and Han dynasties? In particular, how can we account for the fact that in a later mathematical text, namely, The Nine Chapters, probably completed in the first century CE, there was a change in the form in which the data about grain equivalences were given, by comparison with the “regulations on granaries”? Finally, what do our conclusions imply with respect to the nature of the earliest extant mathematical writings. In this article, we gather the various types of statement that mathematical writings contain about grains and offer several elements of interpretation for the “regulations on granaries” and the related text in The Nine Chapters. From this perspective, we offer several hypotheses about the management of grain in the Qin and Han dynasties. (shrink)

Ben shu shou lu le zi 1500 nian yi lai, Zhongguo, Riben, Hanguo he Ou Mei di qu gong kai chu ban, fa biao de Yangming xue ji qi xiang guan xue shuo de wen xian mu lu, gong ji 5 wan yu tiao. Quan shu fen wei 10 juan. Qi zhong, di yi, er juan shou lu Zhong,Ri, Han san guo ji Ou Mei di qu yan jiu Yangming xue de zhong yao wen xian, bing an zhao yu (...) yan lei xing, fen wei Zhong wen wen xian, Ri wen wen xian, Han wen wen xian he Ying wen wen xian si ge bu fen; Di san zhi shi juan shou lu Zhongguo yan jiu Yangming xue de xiang guan wen xian, bing an nian du he xue ke fen lei cheng juan. (shrink)

Not for the academic value of some of the situational events, often with a comprehensive, decisive, Yan'an new philosophy will the home of its columns. Will establish a new philosophy, a lot of grand strategy is one of the actions in Yan'an. This paper examines a new philosophy will be the basic process, an analysis of its membership and the subsequent effects, assessing its characteristics in the formation of contemporary Chinese culture, the unique role, made ​​a number of issues need (...) to be further explored. This paper shows that the new philosophy will not academics, but the educational organization. It is the ideology of expert training, knowledge and control of legal rights, the implementation of the regulatory action of self-sufficiency and closed culture strategy. New philosophy will be mainly in the construction and maintenance of highly exclusive mode of thinking to make contributions, as the full value of its effect remains to be thorough and reasonable debate. Some situational events, which have been neglected by academics, may be of significant importance. The Yan'an New Philosophy Association is an example. Its establishment was one of the ambitious strategic actions of the CCP in Yan'an. This paper examines the process of the YNPA's establishment, analyses the composition of its membership, assesses its unique effect on the formation of contemporary Chinese ideology, and raises some issues that are in need of further research. This study shows that the YNPA was an educational institution instead of an academic society, and that the experts in ideology it produced had exclusive power in the cultural domain and implemented the party's cultural policies. We can see that the YNPA greatly contributed to the construction and maintenance of a high degree of cultural exclusivity. A full picture of this association, however, requires much more in-depth studies. (shrink)

Today, modern large-scale production has created a real life world for people. People's life is so greatly dominated by production that we can say people's life is the life being produced. The basic features of modern life are: First, modern lifestyle is a consumptionism-oriented lifestyle. Consumption has become the main content of modern life. As a result, it is very difficult to distinguish life from consumption. People have changed into consumers. Second, modern lifestyle is a lifestyle of the generalization of (...) commodity logic. Commodity logic has pulled whole society onto the track of the commodity production. People's life is inevitably dominated by the commodity logic, resulting in the prevalence of materialism and money worship. Third, modern lifestyle is a highly homogenized lifestyle,eliminating the possible development of individual personality. The main problems of modern life are: First, lack of conscious reflection of life, People have been lost in a fake sense of happiness. People indulge in a fake sense of happiness created by consumption without any selfconsciousness. Second, lack of correct self-understanding, People have been lost in formal personality. The expressions of formal personality are lack of serious rational thinking. Third, lack of the concern about the transcendent dimension of life, People have been lost in the present dimension of life. People's life has been filled with all kinds of consumergoods and illusions that evoke. Therefore, no room has been left for transcendent issues, such as, the meaning of life. (shrink)

Since rapid economic growth has led to the overuse of natural resources and environmental degradation, increasing attention has been paid to environmental problems. This study aims to explore the relationship between consumers’ perceived value and satisfaction, and energy-saving products purchase intention was investigated using appraisal-emotional response-coping theory. Moreover, this study further investigates these relationships in different consumer groups. In total, 399 questionnaires were collected online and offline, and results though structural equation modeling analysis show that functional, emotional, conditional, and green (...) value have a positive effect on consumer satisfaction and thereby promote the intention to purchase energy-saving products. However, social value is not significant for consumer satisfaction. Perceived value influences consumer satisfaction and varies among different consumers according to the results of multigroup structural equation modeling analysis. These results have practical significance for the design and marketing of energy-saving products. (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)