Background Social responsibility can motivate disaster relief nurses to devote themselves to safeguarding rights and interests of people when facing challenges that threaten public health. However, few studies focused on the relationship of moral courage, job-esteem, and social responsibility among disaster relief nurses. Objective To explore the influence of moral courage and job-esteem on the social responsibility in disaster relief nurses and clarify the relationship model between them. Methods A cross-sectional study was conducted among 716 disaster relief nurses from 14 (...) hospitals in central China through an online survey, including moral courage scale, job-esteem scale, and social responsibility questionnaire. The data were analyzed by Pearson’s correlation, and the mechanism of the effect of moral courage and job-esteem on social responsibility was completed. Ethical considerations This study was approved by the Medical Ethics Committee of the Second Xiangya Hospital of Central South University (Approval Number: 2019016). Results Disaster relief nurses’ moral courage positively impacted social responsibility (r = 0.677, p < 0.01), and moral courage could affect social responsibility through the mediating role of job-esteem. Conclusion Job-esteem mediated between moral courage and social responsibility among disaster relief nurses. Nursing managers regular assessment of nurses’ moral courage and interventions such as meetings and workshops can reduce moral distress, foster morally courageous behavior, enhance job-esteem, and improve social responsibility performance among disaster relief nurses. (shrink)

This article presents an alternative rationale for corporate philanthropy based on managerial values of benevolence and integrity. On the one hand, top managers with benevolence and integrity values are more likely to spread their intrinsic concern for others into the wider society in the form of corporate philanthropy. On the other hand, top managers high in benevolence and integrity are likely to contribute to improved managerial credibility and trusting firm-stakeholder relationships, thereby improving corporate financial performance. Therefore, the article makes the (...) argument that both corporate philanthropy and corporate financial performance can better be interpreted as resulting from managers’ benevolence and integrity values. (shrink)

In Practical Philosophy Education, besides the learning of conceptual knowledge and working with an introspective method, students are actively engaged whereby they are played in a new form as a language game. The negative attitudes and the pretending performances were revised from the exercise of answering questions to asking question, and then to continue asking. 1957 Coffee proposes the “cross-questioning” model of using knowledge to play the “game” of philosophy. This playing experience is passed down intellectually in the form of (...) language game, which is to be replayed sentimentally in a theater game. As a pedagogic, the previous philosophical activities are exemplified in the younger generation’s way of learning and “replaying”. As a lifestyle, the historical classical thinking is continued, while the old games of philosophers are played with new and refreshing rules. (shrink)

Résumé: O design cultural integra o conteúdo cultural no processo de design. É um meio importante para perceber a inovação da cultura tradicional na herança. O comportamento do design cultural é sutilmente influenciado pela filosofia cultural. Especificamente, a análise do ambiente cultural, a associação semântica cultural e a extração de imagens culturais, na perspectiva da filosofia cultural, ajudam a perceber a explicitação do conhecimento implícito no processo de codificação e decodificação de genes culturais. Selecionamos Ningbo como uma amostra, aprofundamos os (...) genes culturais regionais, exploramos o modelo de geração de design cultural e ainda propusemos a estrutura para a construção de um sistema de serviços de conhecimento de design cultural para fornecer orientação metodológica, para a prática de design cultural regional, a fim de construir capacidades de design cultural sustentável. (shrink)

Wang Yi’s article deals with the role of house churches, that is, unregistered churches. In his evaluation of the different branches of house churches Wang Yi touches upon issues of identity and the future of China, and he also harshly criticizes the Chinese party-state, claiming that “China is becoming a tumor in the world.”.

In lieu of an abstract, here is a brief excerpt of the content:476 Feminist Studies 41, no. 2. © 2015 by Feminist Studies, Inc. Wang Zheng Detention of the Feminist Five in China On March 6 this year, just before International Women’s Day, the Chinese police in Beijing arrested five young women who had engaged in activism to protest sexual harassment on public transportation. The month-long detention of these five young feminists has changed the landscape of Chinese feminism. The (...) global feminist mobilization that emerged to appeal for their release also presents a fascinating example of a successful feminist response to authoritarianism. In this short piece, I open with a few personal snapshots to briefly illustrate the history of Chinese feminist engagement with sexist sexual norms. Next, I will situate the five young feminists’ actions within this historical context in order to illustrate significant changes in Chinese feminist practices as well as in Chinese society. Finally, I will discuss the political implications of the detention of the so-called Feminist Five as well as the global mobilization for their release. In 1985 I came from Shanghai to study US history at the University of California, Davis. I made quite a few American friends in the graduate program. They were very curious about my life in China, and I was very proud of being a liberated woman from socialist China. I acted like an ambassador, talking to different groups about the great accomplishments of women’s liberation under socialism in China. As a young, urban woman I enjoyed equal education, equal employment, equal pay, and equal opportunity for promotion. I had never experienced gender News and Views 477 inequality, I thought. One day I was telling my friends about how I once confronted a thief who had just snatched my wallet on a crowded bus in Shanghai and how I forced him to drop my wallet. My friends were very impressed: “Wow! You were so brave,” they said. A few days later, I happened to mention that on the same crowded Shanghai buses, men would frequently grope women, and my friend asked instantly, “How did you respond to them?” I replied without thinking, “What could I do? I just tried my best to move to another spot to avoid such rascals.” My friend then raised a question that shattered my self-perception as a brave and liberated woman: “Why did you dare to confront a thief but not a sexual harasser?” I answered, “Oh, I would be so ashamed if people around me noticed.” Immediately, I realized that my reply was highly problematic. That conversation set in motion a process of soul searching. Why would a liberated woman still continue to observe the patriarchal value of chastity? Why would women of my generation—the liberated Chinese women in socialist China—have no consciousness of the serious problems contained within these sexual norms? It was not only a personal reflection. From this point, I embarked on a long review and contemplation of women’s liberation in socialist China. I realized that in the realm of sexuality, while state feminists were able to transform the sexual double standard to a single standard for the general public (although some top male leaders continue double standards and engage in extramarital sexual relationships without being punished), puritanical sexual morality did not shake deeply entrenched masculinist cultural values of women’s chastity and virginity. As a result, a liberated woman such as myself could internalize such sexist values with no consciousness, let alone action, focused on changing such sexist culture. In 1992, I attended a conference by the Shanghai Women’s Federation. When a US feminist scholar asked if there were any cases of sexual harassment in China, the Chinese women participants all replied, “No, no, we don’t have sexual harassment.” I stood up and named things that happened to women every day on Shanghai buses as sexual harassment. By then I had long been empowered by my study of feminist history and theories. In 1995, at the NGO forum at the Fourth UN Conference on Women held in Beijing, feminists from inside and outside China openly challenged pervasive sexist sexual norms. Sexual violence and sexual harassment were clearly defined as violations of women’s human rights... (shrink)

Self-serving leadership is a form of unethical leadership behavior that has destructive effect on its targets and the overall organization. Adopting a social cognition perspective, this study expands our knowledge of its adverse effect and the way to mitigate the effect. Integrating two sub-theories of social cognition, we propose a theoretical model wherein self-serving leadership hinders team creativity through psychological safety as well as knowledge hiding, with task interdependence acting as a contextual condition. Results from a sample of 107 R&D (...) teams revealed that self-serving leadership not only reduced team psychological safety, but also induced team knowledge hiding, both of which ultimately affected team creativity. The presence of high task interdependence buffered the destructive effect of self-serving leadership on team creativity via team psychological safety as well as the indirect effect via knowledge hiding. (shrink)

Drawing on social exchange theory, we examine the conditions under which employees’ good intentions motivate them to engage in unethical pro-organizational behavior (UPB) and the psychological mechanism behind this behavioral decision. Findings from a time-lagged field study and a scenario study indicate (1) an interactive effect between perceived organizational support and employee performance on UPB; (2) that low performers who perceive high levels of organizational support are more likely to engage in UPB; and (3) that feelings of indebtedness to the (...) organization mediate the interactive effect on UPB. Therefore, the paper highlights the importance of conditional factors in motivating UPB by combining employee ‘good intentions’ and ‘disadvantageous situations’ to understand the UPB decision process. The paper concludes with theoretical and practical implications. (shrink)

This research focuses on the complex relationship between the musical narrative and emotional expression in piano works from a philosophical point of view. It aims at identifying how emotions are enacted within music and how they can influence and mold the listener’s experience. Building on the premises of important philosophical theories, the study explores the idea of musical narrative, its origins, and its impact on forming emotions within music. Emotional communication in piano works is also discussed in the study, with (...) an emphasis on how composers incorporate various musical features to portray certain emotions. Furthermore, this research elaborates on the philosophical perspective of musical narrative and emotional expression and contributes to the understanding of the aspects within the framework of piano music. The findings of this research are intended to add to the debates in the philosophy of music, with regard to performance and listener’s reception. (shrink)

The number of articles published in open access journals has increased dramatically in recent years. Simultaneously, the quality of publications in these journals has been called into question. Few studies have explored the retraction rate from OAJs. The purpose of the current study was to determine the reasons for retractions of articles from OAJs in biomedical research. The Medline database was searched through PubMed to identify retracted publications in OAJs. The journals were identified by the Directory of Open Access Journals. (...) Data were extracted from each retracted article, including the time from publication to retraction, causes, journal impact factor, and country of origin. Trends in the characteristics related to retraction were determined. Data from 621 retracted studies were included in the analysis. The number and rate of retractions have increased since 2010. The most common reasons for retraction are errors, plagiarism, duplicate publication, fraud/suspected fraud and invalid peer review. The number of retracted articles from OAJs has been steadily increasing. Misconduct was the primary reason for retraction. The majority of retracted articles were from journals with low impact factors and authored by researchers from China, India, Iran, and the USA. (shrink)

The research study explores the philosophical viewpoints on cultural hybridity and considers how they affect the development of identities, moral behaviour, epistemological criticism, and real-world applications in a variety of fields. Cultural hybridity, which is defined as the blending of different cultural aspects, calls into question established ideas about identity and encourages us to reevaluate the flexibility and diversity that are fundamental to the human self. For measuring, the research study used the Smart PLS Algorithm Model related to variables through (...) this software run results included descriptive statistics, correlation coefficient, and the Smart PLS Algorithm Model between them. Philosophical investigations into cultural hybridity shed light on the dynamic interactions between identity and alterity, ethics and epistemology, and draw on the works of philosophers like Stuart Hall, Emmanuel Levinas, and Homi K. Bhabha. Cultural hybridity is an ethical imperative that requires us to shift our perspective towards the Other and welcome cultural variety with warmth and kindness. From an epistemological point of view, cultural hybridity upends hegemonic knowledge frameworks and creates pluralistic modes of knowledge creation that provide voice to underrepresented groups. Philosophical viewpoints on cultural hybridity have practical implications in urban planning, education, diplomacy, and intercultural communication. Overall result found that there is a direct and significant link between philosophical perspectives on the cultural hybridity related to dynamics of identity and alterity. These applications promote inclusive societies, social cohesion, and creativity. We began a revolutionary route towards a more globalized, compassionate, and linked society by accepting cultural hybridity. (shrink)

This volume brings the first English translation of the Confucian classics Four Books for Women, with extensive commentaries, to the English-speaking world. Written by women for women's education, this work provides an invaluable look at the tradition of Chinese women's writing, education, history, and philosophy, from the 1st to the 16th century.

The purpose of this study was twofold: to validate the College Teachers’ Academic Frustration Tolerance Questionnaire and the College Teachers’ Academic Performance Questionnaire and to explore the relationship between frustration tolerance and academic performance among college teachers. A total of 25 experts were recruited to modify and validate both questionnaires, and the results showed that the questionnaires had good content validity. Exploratory factor analysis provided further evidence supporting the reliability of the CTAFT and the CTAP, suggesting that the instruments are (...) reliable and valid. Confirmatory factor analysis showed that frustration tolerance affected academic performance, which could best be modeled in the three dimensions of Affect, Preferred Difficulties, and Action. A total of 450 college teachers from each faculty of both universities were then recruited to explore the significant positive correlation between academic frustration tolerance and academic performance. The results from the structural equation model suggested that AC and PD combined significantly predicted academic performance. To our knowledge, this is the first study to explore the relationship between college teachers’ academic frustration tolerance and academic performance in China. (shrink)

The present paper generalizes the notion of general overlap and grouping functions from the bounded lattices to the algebras of infinite-valued Łukasiewicz logic, providing some constructive methods of these functions by means of multiplicative and additive generators. Here we first introduce the notion of general overlap and grouping functions on MV-algebras, and provide some conditions under which an MV-algebra is a multiplicative and an additive integral by using two constructions of general overlap and grouping functions, respectively. Subsequently, we introduce the (...) concept of generators, including multiplicative and additive generators, of general overlap and grouping functions on MV-algebras, and provide the necessary and sufficient conditions of two one-place functions to be multiplicative and additive generators, respectively, discussing the relationship between multiplicative and additive generators of general overlap and grouping functions on MV-algebras. (shrink)

Given the cultural significance of the Silver Age religious renaissance in the history of Russian thought, it is important to examine how contemporary Russian philosophers, amidst increasing academic specialization, approach and categorize indigenous religious philosophy from this period. This article investigates contemporary Russian philosophical research and its evaluations of Sergei Nikolayevich Bulgakov, a key Silver Age figure. This study finds that, following the surge in research during the 1990s, Russian scholars have maintained consistent interest in Bulgakov. However, within the discipline (...) of philosophy these researchers may still be facing some structural problems. Bulgakov’s philosophical and theological ideas are intrinsically linked, which makes it difficult to pinpoint his disciplinary orientation. Researchers have been obliged to adjust their approaches to overcome misunderstandings. Not only philosophy of language but also philosophy of science and technology have been influenced by this new interest in Bulgakov. The overall trend in the examination of Bulgakov’s intellectual legacy has been toward careful and balanced deliberation and analysis. (shrink)

: By rethinking the meaning of central idiom in the Great Learning, this essay intends to open up new horizon for the hermeneutics of early Confucian thinking, which has little to do with metaphysics. Through careful etymological study of ge wu and dialogue between the Great Learning and Heidegger’s phenomenology of human affection, I demonstrate the critical position of the human heart in early Chinese thinking. This new interpretation of early Confucian moral teachings also recovers an invigorating possibility for contemporary (...) discourse on the question of ethics. (shrink)

In 2024, new legislation introduced significant changes to the rules, procedures and institutions governing research ethics in Brazil. One of its objectives was to limit sponsors’ post-trial access (PTA) obligations. However, a presidential veto weakened this reform. This veto maintained the sponsors’ indefinite duty to provide the tested intervention until it becomes available in the National Health System. In Brazil, where courts often order the public funding for treatments not included in the health system’s lists and protocols, a substantial reduction (...) in the sponsors’ PTA obligations would likely increase litigation seeking state-funded PTA. This dynamic adds an extra layer of complexity to the ethical analysis of the regulation of PTA in Brazil, as its distributive impact on the public health system must be considered. Therefore, any argument for reducing sponsors’ PTA obligations must go beyond simply demonstrating that sponsors do not owe participants an ethical obligation to provide them with indefinite access to the tested intervention or that such obligation discourages research. It must also make a compelling case for why the state, rather than sponsors, should bear the responsibility for funding PTA. (shrink)

Cet article retrace les changements intervenus au sein du militantisme féministe chinois dans un climat de détérioration politique deux décennies après la Quatrième Conférence mondiale sur les femmes (QCMF) en 1995. Il met en lumière les actions novatrices menées par les jeunes féministes, de même que l’intense surveillance qu’exerce, sur le militantisme organisé, un État totalitaire qui craint de perdre son pouvoir. Bien que la sphère publique et le cyber espace ne laissent guère beaucoup de place à l’activisme, les féministes (...) chinoises se sont mobilisées pour continuer d’expérimenter de nouvelles façons d’exiger l’égalité de genre et de poursuivre des transformations sociales et culturelles. (shrink)

Infants are sensitive to statistical regularities (i.e., transitional probabilities, or TPs) relevant to segmenting words in fluent speech. However, there is debate about whether tracking TPs results in representations of possible words. Infants show preferential learning of sequences with high TPs (HTPs) as object labels relative to those with low TPs (LTPs). Such findings could mean that only the HTP sequences have a word‐like status, and they are more readily mapped to a referent for that reason. But these findings could (...) also suggest that HTP sequences are easier to encode, just like any other predictable sequence. Here we aimed to distinguish between these explanations. To do so, we built on findings that infants become resistant to learning labels that are not typical of their native language as they approach 2 years of age and add words to their lexicons. If tracking TPs in speech results in identifying candidate words, at this age TPs may have reduced power to confer lexical status when they yield a unit that is very dissimilar to word forms that are typical of infants’ native language. Indeed, we found that at 20 months, English‐learning infants with relatively small vocabularies learned HTP Italian words (but not LTP words) as object labels, while infants with larger vocabularies resisted learning HTP Italian words. These findings suggest that the HTP sequences may be represented as candidate words, and more broadly, that TP statistics are relevant to word learning. (shrink)

In this study, we focus on the problem of information expiration when using the traditional collaborative filtering algorithm and propose a new collaborative filtering algorithm by integrating the time factor. This algorithm considers information influence attenuation over time, introduces an information retention period based on the information half-value period, and proposes a time-weighted function, which is applied to the nearest neighbor selection and score prediction to assign different time weights to the scores. In addition, to further improve the quality of (...) the nearest neighbor selection and alleviate the problem of data sparsity, a method of calculating users’ sentiment tendency by analysis of user review features is proposed to mine users’ attitudes about the reviewed items, which expands the score matrix. The time factor and sentiment tendency are then integrated into the K-means clustering algorithm to select the nearest neighbor. A hybrid collaborative filtering model based on the improved K-means clustering algorithm is then proposed, by combining item-based and user-based collaborative filtering. Finally, the experimental results show that the proposed algorithm can address the time effect and sentiment analysis in recommendations and improve the predictive performance of the model. (shrink)

Ben shu wan zheng di ti xian le yang ming xin xue"xin ji li","zhi xing he yi","zhi liang zhi"san da ming ti,Sheng dong di ji zai le yang ming xin xue li lun zai yang ming shi sheng zhi jian de gou jian he chuan bo guo cheng,Jiao wei ji zhong di zhan xian he hui ji le yang ming de xin xue si xiang ti xi,Dui yu yang ming hou xue de fa zhan chan sheng le zhi jie er (...) shen yuan de ying xiang. (shrink)

The idea of conducting “upstream public engagement,” using nanotechnology as a test case, has been subject to criticism for its lack of any link to the political system. Drawing on the theoretical tools provided by Habermas, this article seeks to explore such a “link”, focusing specifically on the capacity of civil society organizations to distil, raise and transmit societal concerns in an amplified form to the public spheres at the European Union level. Based on content analysis and semi-structured interviews with (...) relevant actors, this article examines the evolution of CSO approaches towards nanotechnology over the past decade and investigates whether and how upstream public engagement could contribute to more vibrant public spheres and facilitate the formation of communicative power. The answer to these questions is twofold: on the one hand, moving public engagement “upstream” enables CSOs to be better informed and to become part of the debates more quickly. A “green alliance” is taking shape, which calls for more stringent regulation on nanomaterials. On the other hand, upstream public engagement has turned out to be unsuccessful in generating substantial and sustained interest. A number of CSOs have quit this field in frustration at the tokenistic engagement and out of fatigue after the intense lobbying battle for Registration, Evaluation, Authorisation and Restriction of Chemicals. (shrink)

The advent of the intelligence age has injected new elements into the development of literature. The synergic modification of Anglo-American traumatic narrative literature by artificial intelligence technology and interactive design psychology will produce new possibilities in literary creation. First, by studying natural language processing technology, this study proposes a modification language model based on the double-layered recurrent neural network algorithm and constructs an intelligent language modification system based on the improved LM model. The results show that the performance of the (...) proposed model is excellent; only about 30% of the respondents like AAL literature; the lack of common cultural background, appreciation difficulties, and language barriers have become the main reasons for the decline of reading willingness of AAL literature. Finally, AI technology and ID psychology are used to modify a famous TN work respectively and synergically, and the modified work is appreciated by respondents to collect their comments. The results corroborate that 62% of the respondents like original articles, but their likability scores have decreased for individually modified work by AI or ID psychology. In comparison, under the synergic modification efforts of AI and ID psychology, the popularity of the modified work has increased slightly, with 65% of the respondents showing a likability to read. Therefore, it is concluded that literary modification by single ID psychology or AI technology will reduce the reading threshold by trading off the literary value of the original work. The core of literary creation depends on human intelligence, and AI might still not be able to generate high-standard literary works independently because human minds and thoughts cannot be controlled and predicted by machines. The research results provide new ideas and improvement directions for the field of AI-assisted writing. (shrink)

Digital images of cultural heritage (CH) contain rich semantic information. However, today’s semantic representations of CH images fail to fully reveal the content entities and context within these vital surrogates. This paper draws on the fields of image research and digital humanities to propose a systematic methodology and a technical route for semantic enrichment of CH digital images. This new methodology systematically applies a series of procedures including: semantic annotation, entity-based enrichment, establishing internal relations, event-centric enrichment, defining hierarchy relations between (...) properties text annotation, and finally, named entity recognition in order to ultimately provide fine-grained contextual semantic content disclosure. The feasibility and advantages of the proposed semantic enrichment methods for semantic representation are demonstrated via a visual display platform for digital images of CH built to represent the Wutai Mountain Map, a typical Dunhuang mural. This study proves that semantic enrichment offers a promising new model for exposing content at a fine-grained level, and establishing a rich semantic network centered on the content of digital images of CH. (shrink)

Based on the survey data of 839 consumers in Jiangsu and Anhui provinces, this article explores the formation mechanism and internal driving force of Chinese consumers’ green consumption, and clarifies the effect of consumers’ pro-environmental awareness components on green consumption and the moderating effect of perceived cost, policy incentives, and face culture. The results of the study show that pro-environmental awareness is the basis for green consumption. However, groups with pro-environmental awareness do not choose green consumption for sure. The transformation (...) from awareness to behavior is also affected by many factors. Consumers’ perceived cost is an important obstacle to green consumption, while the face culture in Chinese society has a certain role in promoting green consumption. In this study, government policy incentives have no significant direct impact and moderating effect on consumers’ green consumption. (shrink)

According to radical scepticism, knowledge of the external world is impossible. Transcendental arguments are supposed to be anti-sceptical, but can they provide a satisfying response to radical scepticism? Especially, when radical scepticism is cast as posing a how-possible question, there is a concern that transcendental arguments are neither sufficient nor necessary for answering such question. In light of this worry, I argue that we can take a modest transcendental argument as a stepping stone for a diagnostic anti-sceptical proposal, and I (...) use a Wittgensteinian modest transcendental argument to illustrate my point. (shrink)

Contingent reinforcement behavior is generally regarded as one of the key elements of being a “good” leader, yet the question of what happens when this behavior is absent has received little attention in past empirical research. Drawing upon self-regulation theory, we develop and test a model that specifies the effects of leader reward omission on employes’ deviant behavior. Using the data of 230 workers from two manufacturing companies located in South China collected across three time points, we find that leader (...) reward omission is positively associated with deviant behavior. Moreover, the indirect effects of leader reward omission on employes’ deviant behavior are mediated by moral disengagement. Our study also reveals that Machiavellianism can aggravate the positive effect of leader reward omission on moral disengagement, and subsequently exacerbate the indirect effect on employes’ deviant behavior. Taken together, our findings reveal the consequences of leader reward omission, and the importance of examining subordinate self-regulation under the lack of positive reinforcement. (shrink)

The meshed control theory assumes that cognitive control and automatic processes work together in the natural attention of experts for superior performance. However, the methods adopted by previous studies limit their capacity to provide in-depth information on the neuromotor processes. This experiment tested the theory with an alternative approach. Twelve skilled golfers were recruited to perform a putting task under three conditions: (1) normal condition, with no focus instruction (NC), (2) external focus of attention condition (EC), and (3) internal focus (...) of attention condition (IC). Four blocks of 10 putts each were performed under each condition. The putting success rate and accuracy were measured and electroencephalographies (EEGs) were recorded. The behavioral results showed that the NC produced a higher putting success rate and accuracy than the EC and IC. The EEG data showed that the skilled golfers’ attentional processes in the NC initially resembled those in the EC and then moved toward those in the IC just before putting. This indicates a switch from more automatic processes to cognitive control processes while preparing to putt. The findings offer support for the meshed control theory and indicate the dynamic nature of neuromotor processes for the superior performance of athletes in challenging situations. (shrink)

The RecA family proteins mediate homologous recombination, a ubiquitous mechanism for repairing DNA double‐strand breaks (DSBs) and stalled replication forks. Members of this family include bacterial RecA, archaeal RadA and Rad51, and eukaryotic Rad51 and Dmc1. These proteins bind to single‐stranded DNA at a DSB site to form a presynaptic nucleoprotein filament, align this presynaptic filament with homologous sequences in another double‐stranded DNA segment, promote DNA strand exchange and then dissociate. It was generally accepted that RecA family proteins function throughout (...) their catalytic cycles as right‐handed helical filaments with six protomers per helical turn. However, we recently reported that archaeal RadA proteins can also form an extended right‐handed filament with three monomers per helical turn and a left‐handed protein filament with four monomers per helical turn. Subsequent structural and functional analyses suggest that RecA family protein filaments, similar to the F1‐ATPase rotary motor, perform ATP‐dependent clockwise axial rotation during their catalytic cycles. This new hypothesis has opened a new avenue for understanding the molecular mechanism of RecA family proteins in homologous recombination. BioEssays 30:48–56, 2008. © 2007 Wiley Periodicals, Inc. (shrink)