Adaptive Robust Dynamic Surface Integral Sliding Mode Control for Quadrotor UAVs under Parametric Uncertainties and External Disturbances.Ye Zhang,Ning Xu,Guoqiang Zhu,Lingfang Sun,Shengxian Cao &Xiuyu Zhang -2020 -Complexity 2020:1-20.detailsA robust adaptive fuzzy nonlinear controller based on dynamic surface and integral sliding mode control strategy is proposed to realize trajectory tracking for a class of quadrotor UAVs. In this study, the composite factors including parametric uncertainties and external disturbances are added to controller design, which make it more realistic. The quadrotor model is divided into two subsystems of attitude and position that make the control design become feasible. The main contributions of the proposed ADSISMC strategy are as follows: The (...) combination of dynamic surface and integral sliding mode makes the system always in sliding stage by finding the appropriate initial position compared with the common sliding mode, and the complexity of explosion in backstepping method is eliminated. By introducing the fuzzy system, the unknown functions and uncertainties can be approximated which significantly improves the robustness and the tracking performance. The switching control strategy is utilized to compensate for the errors between estimated and ideal inputs; the tracking performance of the whole system has been significantly improved. The simulation results show the effectiveness of the proposed control method. (shrink)
(1 other version)Does Influencers Popularity Actually Matter? An Experimental Investigation of the Effect of Influencers on Body Satisfaction and Mood Among Young Chinese Females: The Case of RED.Xiaoxiao Zhang,Wuchang Zhu,Shaojing Sun &Jingxi Chen -2021 -Frontiers in Psychology 12.detailsMany studies have linked idealized body image on social media to negative psychological well-being among young females. However, social media influencers’ imagery has not attracted much research attention in either the Western or the Asian context. This study aimed to experimentally investigate the impact of high versus low popular social media influencer images on young Chinese females’ body satisfaction and mood. The participants were 420 female RED users who were randomly assigned to three groups: the influencer-high group ; the influencer-low (...) group ; or a control set of nature images. The results revealed that the groups exposed to influencer imagery had lower body satisfaction and more negative mood than the control group. Notably, this comparison showed no significant difference between the low-influencer and high-influencer groups in body satisfaction and mood. Additionally, this effect was moderated by individuals’ self-discrepancy between personal ideals and their own bodies. That is, exposure to idealized body images does not always produce harmful effects. For those with lower self-discrepancy, idealized body posts somewhat positively affected their body satisfaction. The current research contributes to the media effect literature by providing critical new insights into the study of body image in the context of China. (shrink)
Mechanistic insights and implications of FOXO‐SNAI interplay.Xiaowei Guo,Chenxi Wu,Yu Pan,Xiaojie Zhu,Kai Peng,Xianjue Ma &Lei Xue -2022 -Bioessays 44 (9):2200070.detailsAutophagy promotes both health and disease, depending on tissue types and genetic contexts, yet the regulatory mechanism remain incompletely understood. Our recent publication has uncovered a coherent FOXO‐SNAI feed‐forward loop in autophagy, which is evolutionarily conserved from Drosophila to human. In addition, it's revealed that DNA binding plays a critical role in intracellular localization of nucleocytoplasmic shuttling proteins. Based on these findings, herein we further integrate mechanistic insights of FOXO‐SNAI regulatory interplay in autophagy and unravel the potential link of FOXO‐induced (...) autophagy with SNAI in diseases. Besides, the generality of DNA‐retention mechanism on transcription factor nuclear localization is illustrated with wide‐ranging discussion, and more functions potentially regulated by FOXO‐SNAI feedforward loop are provided. Elucidation of these unsolved paradigms will expand the understanding of FOXO‐SNAI interplay and facilitate the development of new therapeutics targeting FOXO‐SNAI axis in diseases. (shrink)
Sustainable Development for Film-Induced Tourism: From the Perspective of Value Perception.Kui Yi,Jing Zhu,Yanqin Zeng,Changqing Xie,Rungting Tu &Jianfei Zhu -2022 -Frontiers in Psychology 13.detailsThe tourism economy has become a new driving force for economic growth, and film-induced tourism in particular has been widely proven to promote economic and cultural development. Few studies focus on analyzing the inherent characteristics of the economic and cultural effects of film-induced tourism, and the research on the dynamic mechanism of the sustainable development of film-induced tourism is relatively limited. Therefore, from the perspective of the integration of culture and industry, the research explores the dynamic mechanism of sustainable development (...) between film-induced culture and film-induced industry through a questionnaire survey of 1,054 tourism management personnel, combined with quantitative empirical methods. The conclusion shows that the degree of integration of culture and tourism is an important mediating role that affects the dynamic mechanism of sustainable development of film-induced tourism, and the development of film-induced tourism depends on the integration of culture and industry. Constructing a diversified industrial integration model according to local conditions and determining the development path of resource, technology, market, product integration, and administrative management can become the general trend of the future development of film-induced tourism. (shrink)
Promoting Innovative Behavior in Employees: The Mechanism of Leader Psychological Capital.Yanfei Wang,Yi Chen &Yu Zhu -2021 -Frontiers in Psychology 11.detailsThe study reported in this paper analyzed the influence of leader psychological capital (PsyCap) on employees’ innovative behavior and the roles of psychological safety and growth need strength (GNS) in this process within the context of positive psychology theory and conservation of resources theory. Three stages of questionnaire surveys were administered to 81 enterprise leaders and their 342 direct subordinates in South China to test our theoretical model. The results showed that leader PsyCap had significant and positive effects on employee (...) innovative behavior, psychological safety had a partially mediating effect, and GNS positively moderated the relationship between psychological safety and innovative behavior. The results revealed the mechanism of PsyCap and external boundary conditions of the influence of leader PsyCap on employee innovative behavior. The study expands the research results of leader PsyCap theory and also provides guidance on how enterprises manage employees’ innovative behavior. (shrink)
Development and Validation of Chinese Parental Involvement and Support Scale for Preschool Children.Yaping Yue,Xiangru Zhu,Yisi Zhang &Wanyu Ren -2022 -Frontiers in Psychology 13.detailsThe present study developed the Chinese Parental Involvement and Support Scale for Preschool Children to measure parental involvement and support for preschool children. In Study 1, we conducted a literature review, open-ended interviews, a theoretical analysis, and expert interviews to create an item bank. In Study 2, 447 parents completed the item bank. Following item and Exploratory Factor Analysis, 30 items were retained. In Study 3, five new items were added to the 30-item version of the CPISSPC. A separate sample (...) of 471 parents completed the 35-item version of the CPISSPC. After Confirmatory Factor Analysis, a final 18-item version of the CPISSPC was created with four factors: psychological support, educational support, play support, and life support. Construct validity and internal reliability were satisfactory. Study 4 evaluated concurrent validity. CPISSPC scores significantly and positively correlated with perceived social support, marital gratification, and children’s self-efficacy. CPISSPC scores significantly and negatively correlated with parents’ levels of burnout and loneliness. The CPISSPC exhibits good psychometric properties and can be used as a tool to measure parental involvement and support for preschool children. (shrink)
Be in Your Element: The Joint Effect of Human Resource Management Strength and Proactive Personality on Employee Creativity.Jiexuan Zhang,Fei Zhu,Ning Liu &Zijun Cai -2022 -Frontiers in Psychology 13.detailsEmployee creativity is fast becoming a part and parcel in the wake of the increasing volatility of the employment market and the complexity of job demands. Drawing from the actor-context interactionist theoretical approach and career construction theory, this paper adds to current research by exploring the serial mediating effect of job crafting and career adaptability in the impact of human resource management strength on employee creativity. Furthermore, we suggest that proactive personality interacts with HRMS to jointly influence creativity. Survey data (...) from samples of 297 and 390 employees largely confirm our model. Our findings show that HRMS positively impacts employee creativity via serial mediation of job crafting and career adaptability, and proactive personality negatively moderates the process. The paper confirms and expands the interactionist theoretical perspective of creativity, highlights the significance of integration of contextual factors, individual characteristics, and career construction, and makes certain practical sense. (shrink)
Understanding Individual Differences in Metacognitive Strategy Use, Task Demand, and Performance in Integrated L2 Speaking Assessment Tasks.Weiwei Zhang,Meijuan Zhao &Ye Zhu -2022 -Frontiers in Psychology 13:876208.detailsThis study investigated the concept of individual differences (IDs) in the use of metacognitive strategies (planning, problem-solving, monitoring, and evaluating) and its relationship with task demand and learner performance within Kormos’ Bilingual Speech Production Model from the lens of Chinese English-as-foreign-language (EFL) learners in the context of integrated L2 speaking assessment. To measure metacognitive strategies, we administered an inventory on 134 Chinese EFL learners after they completed four integrated L2 speaking assessment tasks. Descriptive analysis and multiple linear regression were adopted (...) for data analysis, and results show that: (a) IDs displayed variance in Chinese EFL learners’ metacognitive strategy use; (b) among the four metacognitive strategies under investigation, problem-solving was reported to be used the most frequently in sharp contrast to monitoring, which had the lowest frequency; (c) metacognitive strategies worked interactively, responding to task demands involved in the four integrated L2 speaking assessment tasks; and (d) Chinese EFL learners’ use of metacognitive strategies, in individual and interactive working modes, had no relationship with their speaking performance. These results are expected to present some insights into the role of IDs in metacognitive strategy use during L2 speech production under assessment conditions, which will add robust evidence to the existing literature on L2 speaking, in particular on metacognitive strategy use in L2 speaking assessment. In the meantime, the findings will provide some empirical validation support for Kormos’ model, which will further provide some implications for L2 speaking instruction and L2 assessment. (shrink)
Understanding Chinese Political Study: Historical and Fieldwork Political Study Revisited.Rongxin Li -2024 -Telos: Critical Theory of the Contemporary 2024 (207):39-61.detailsExcerptThis paper aims to demonstrate how political study in China contributes to and facilitates debates among Chinese and Western authors by fostering a plural understanding of political science generally, conceptually, and methodologically that goes beyond the simple dichotomization of democracy and authoritarianism. Over the last four decades (1978 to the present), Chinese political study has been shaped by two indigenized schools, among others: historical political study (lishi zhengzhi xue 历史政治学) and fieldwork political study (tianye zhengzhi xue 田野政治学). Some stimulating debates (...) have unfolded in these two narratives by simultaneously reintroducing history and reconceptualizing Chinese politics through straightforward fieldwork. These two indigenized approaches include epistemological, ontological, theoretical, and methodological aspects, and the spontaneous reconstruction of the “Chinese school” rebalances both the “scope conditions” and Chineseness of the discipline. Should these two conceivable branches not be purely descriptive, the question remains whether they represent the future trajectory of Chinese political study or merely a transient occurrence during China’s transitional stage. (shrink)
Daoist Patterns of Thought and the Tradition of Chinese Metaphysics.Zhu Bokun -1998 -Contemporary Chinese Thought 29 (3):13-71.detailsAs one of the three systems of China's traditional culture, Daoism has an important place in the history of Chinese philosophy. Based on the ideas of inaction performing all, the Way modeling spontaneity, and the dialectic of you [having, being] and wu [lacking, nonbeing], this article is a systematic exploration of Laozi's philosophy of denial, spontaneity, and atheism, as well as of the deep and lasting influence of his metaphysical principles on all schools of traditional Chinese philosophy.
Structural Biology of the HEAT‐Like Repeat Family of DNA Glycosylases.Rongxin Shi,Xing-Xing Shen,Antonis Rokas &Brandt F. Eichman -2018 -Bioessays 40 (11):1800133.detailsDNA glycosylases remove aberrant DNA nucleobases as the first enzymatic step of the base excision repair (BER) pathway. The alkyl‐DNA glycosylases AlkC and AlkD adopt a unique structure based on α‐helical HEAT repeats. Both enzymes identify and excise their substrates without a base‐flipping mechanism used by other glycosylases and nucleic acid processing proteins to access nucleobases that are otherwise stacked inside the double‐helix. Consequently, these glycosylases act on a variety of cationic nucleobase modifications, including bulky adducts, not previously associated with (...) BER. The related non‐enzymatic HEAT‐like repeat (HLR) proteins, AlkD2, and AlkF, have unique nucleic acid binding properties that expand the functions of this relatively new protein superfamily beyond DNA repair. Here, we review the phylogeny, biochemistry, and structures of the HLR proteins, which have helped broaden our understanding of the mechanisms by which DNA glycosylases locate and excise chemically modified DNA nucleobases. (shrink)
Makesi zhu yi zhe xue shi yi nan wen ti yan jiu.Dazheng Zhu (ed.) -1987 - Changchun Shi: Jilin sheng xin hua shu dian fa xing.details本书是学习马克思主义哲学史的参考书。书中对学习19世纪和当代马克思主义中存在的40个疑难问题进行了系统的整理和研究。.
Zhu xi: basic teachings.Xi Zhu -2022 - New York: Columbia University Press. Edited by Daniel K. Gardner.detailsZhu Xi is the most important of the twelfth-century neo-Confucianists. Some consider him second only to Confucius himself in his importance to Chinese philosophy as a whole, since it is his interpretation of Confucius that has been canonical since his lifetime. This short book, modeled after the Burton Watson "Basic Writings" volumes for Zhuangzi, Xunzi, and Han Feizi, is an accessible, one-volume introduction to Zhu Xi's influential philosophical system designed especially for course use. In "classifying" Zhu Xi's conversations in the (...) Classified Conversations of Master Zhu, Li Jingde dedicated the first thirteen chapters to conversations explaining his general philosophical system. Readers are introduced to his metaphysics of principle (li), psychophysical stuff (qi), spiritual beings (guishen), human nature (xing), mind-heart (xin), and emotions (qing); and to his program of self-cultivation-that is, the curriculum that Confucians should follow to attain moral perfection. Gardner argues that these chapters constitute the best overview of Zhu Xi's basic philosophical teachings, and selections from them form the basis of his volume. Occasionally, they are supplemented with passages from the Collected Literary Writings of Master Zhu and from Zhu's commentaries on the Classics. (shrink)
Revolution of view: Visual presentation under the influence of multidimensional concepts.Zhu Feng -2011 -Journal of Aesthetic Education 45 (2):109-116.detailsThe ultimate aim of artistic exploration is to explore the claim that objects are different from experience and beauty is just a by-product of the exploration. In other words, the truth in the eyes of each person may quite literarly not be the same. A typical example is that some art archaeologists attribute the artistic achievements of Vincent van Gogh and Paul Cezanne to their eye diseases.1 Saying this, however, is somewhat unreliable—just like we could not arbitrarily say that the (...) world in the eyes of animals, who have a completely different physciological and optic nerve structure, is quite diferent from that of humans. This indicates that differences in the visual apparatus influence the viewing body’s .. (shrink)
Neo‐daoism and Neo‐confucianism: Three Common Themes.Zhu Hanmin -2018 -Journal of Chinese Philosophy 45 (1-2):119-124.detailsThis paper presents the thesis that Neo-Confucianism and Neo-Daoism have shared basic unity concerning the following three themes: the inner logic of the life world, spiritual world and personality ideal; the intrinsic logic of the learning of body and mind; and the inner logic of textual interpretation methods. This is a deepening process from historical phenomena to philosophy and to the interpretation of classics.
Xin ren wen zhu yi de Zhongguo ying ji =.Shoutong Zhu -2009 - Beijing: Zhongguo she hui ke xue chu ban she.details¿̆Ơ£̃Œđ̇¿¿̇¿¿̄ʻ¿̆ƯÞ̇ðð̃¿ı̃Ư¿̄ư ̇ʻ¿̃Đ¿̆¿Ư̄Œ¿̄¿¿̆¿¿̄¿¿̈¿ữ¿ı̃Ư¿̆ʻ ð̃ð¿̆¿ı̃¿£̃ ¿̇¿¿̄ð¿̆Ơ¿̈¿¿̇þ, ʻ̄¿¿̈¿ı̌¿¿̌Ư¿̌¿¿̈ðʻ̄¿¿̄ʺơ̄¿¿̇¿¿̈ ¿¿̃Đð̃ð¿̆¿ʹ̈¿¿̄æ¿̃Æ¿̄¿¿̆ʻ¿̄¿Ư̄Œð ̃ð¿̆¿ı̃¿£̃ ð̇đ¿̄Æ¿̆ʻð̃ð¿̆¿ı̃¿£̃ ¿̇¿¿̃ʺ¿̄ơʹ̈¿¿̌¿̈¿Ł̈¿ʼ̄Łʹ̈¿ı̃¿ ̈¿®̌¿, ¿̃¿̈¿¿̈¿ı̃ðʹ̇¿Ư̄Œ¿̄ʻʼ̄¿̆¿ð̃¿¿ ̄£¿̆ʻð̃ð¿̆¿ı̃¿£̃ı̃Ư¿̄ưư̄ł¿̈£¿̇¿ ̄¿¿̄ø¿̆¿¿̆Ł. ¿̆Ơ£̃Œ¿̆ƯÞ̇ðð̃¿¿̆ʻð̃ð¿̆¿ı̃¿£̃ ¿̇ ¿¿̇¿ʼ̈ð ̇£¿̄¿¿̆¿¿̆¿¿̄æ¿̇¿¿̆ʹ, ¿̇łƯ̆Þ¿̄ð¿̄¿̄Þ¿̆Ưı̃Ư¿̄ư¿̆ʻð̃ð¿̆ ¿ı̃¿£̃¿̇¿¿̆¿¿̆đ¿̄¿œ̆æ, ̄Þ ̄±¿̆ʻ¿̆ʹð̃ð¿̆¿ı̃¿£̃¿̇¿̄¿ ̄¿ ̄¿Ư̆ʹ.
Emotion and action.Jing Zhu &Paul Thagard -2002 -Philosophical Psychology 15 (1):19 – 36.detailsThe role of emotion in human action has long been neglected in the philosophy of action. Some prevalent misconceptions of the nature of emotion are responsible for this neglect: emotions are irrational; emotions are passive; and emotions have only an insignificant impact on actions. In this paper we argue that these assumptions about the nature of emotion are problematic and that the neglect of emotion's place in theories of action is untenable. More positively, we argue on the basis of recent (...) research in cognitive neuroscience that emotions may significantly affect action generation as well as action execution and control. Moreover, emotions also play a crucial role in people's explanation of action. We conclude that the concept of emotion deserves a more distinctive and central place in philosophical theories of action. (shrink)
Passive action and causalism.Jing Zhu -2004 -Philosophical Studies 119 (3):295-314.detailsThe first half of this paper is an attemptto conceptualize and understand the paradoxicalnotion of ``passive action''''. The strategy is toconstrue passive action in the context ofemotional behavior, with the purpose toestablish it as a conceivable and conceptuallycoherent category. In the second half of thispaper, the implications of passive action forcausal theories of action are examined. I arguethat Alfred Mele''s defense of causalism isunsuccessful and that causalism may lack theresource to account for passive action.Following Harry Frankfurt, I suggest analternative way (...) of understanding the nature ofaction that can accommodate passive action. (shrink)
What if the Father Commits a Crime?Rui Zhu -2002 -Journal of the History of Ideas 63 (1):1-17.detailsIn lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Ideas 63.1 (2002) 1-17 [Access article in PDF] What if the Father Commits a Crime? Rui Zhu Apparently, Socrates and Confucius respond similarly to the question if a son should turn in his father in the case of the father's misdemeanor. When Euthyphro, flaring his pride of his moral impartiality, tells Socrates that he is on his way to report his father because he (...) has thrown one of the household slaves into a ditch and left him bound there until he was dead, Socrates says, "Good Heaven! Certainly, Euthyphro, most men would not know how they could do this and be right. It is not the part of anyone to do this, but of one who is far advanced in wisdom." 1According to Socrates, only a man of high wisdom knows how to prosecute his father righteously, but Euthyphro does not appear to have this wisdom. When his interlocutor observes that an upright man in his state would bear witness against his father if he misappropriates a sheep, Confucius contradicts the interlocutor's understanding of uprightness by speaking in a matter-of-fact tone: "In my country the upright men are of quite another sort. A father will cover up for his son, and a son his father—which incidentally does involve a sort of up—rightness." 2Confucius stands on the same line with Socrates but seems the more radical of the two. Socrates does not directly refute Euthyphro and only suggests that he make sure he understands what he is doing before going any further. Socrates is not only typically Socratic—indirect and suggestive—but also sounds so reasonable that Euthyphro appears in contrast to be a reckless youth who harbors [End Page 1] only a faint understanding of morality. Confucius's response is more rigid, for he categorically dismisses an act of the Euthyphroian kind. He demands that father and son cover up for each other in the case of either one's guilt. Compared to Socrates, Confucius advocates the position that seems a little too strong and leaves no room for justice, while Socrates does not have that problem with justice. This is how we feel about Socrates and Confucius on our first impression. The prima facie observations that we make from the remarks of Socrates and Confucius seem both plain and unproblematic.By embedding these remarks into their respective social or philosophical cultures, this paper will show that our previous observations are not quite accurate. The apparent affinity of the Socratic and Confucian stances belies different underlying moral philosophies. We want to use their comments as bridges to explore the early Greek and Confucian ethics and show how different a picture we see after things are examined within their traditions.The issue of a possible father-son conflict may be treated as a case study of the early Greek (the Heroic era until the age of Socrates) and early Confucian (Confucius and Mencius) morals. There is a strong theme in the early Greek morals that allows, or sometimes demands, a son such as Euthyphro to prosecute his father for the sake of justice, because justice, instead of love (philein) or filial piety, is the governing principle in the early Greek ethics. Confucian ethics is founded on love (human-heartedness), which in turn is extended from the love between father and son. All moral principles including justice are derived from this extension of love. The mutual love of father and son then becomes the governing principle in the case of Confucianism. A Guilty Father: The Greek Motif The question, "What if the father commits a crime?" has a certain realistic aroma to a boy coming of age in the Hesiodic Greek world. That father has to be overcome by son before some relief from strife becomes possible is a familiar theme in Greek literature. In Hesiod's Theogony, Uranus (the sky) incurs hatred from all his newborn children since he hides them in their mother Gaia's womb and does not let them return to the light, for no reason... (shrink)
Makesi zhu yi zhe xue de dang dai shi yu.Xiangshi Shi &Xiaopeng Zhu (eds.) -2009 - Beijing: Zhong yang bian yi chu ban she.details本书是研究马克思主义哲学的成果汇集。这些成果从马克思主义哲学的视域,对当代重大现实问题和理论问题进行了认真的研究.
Reclaiming volition: An alternative interpretation of Libet's experiment.Jing Zhu -2003 -Journal of Consciousness Studies 10 (11):61-77.detailsBased on his experimental studies, Libet claims that voluntary actions are initiated by unconscious brain activities well before intentions or decisions to act are consciously experienced by people. This account conflicts with our common-sense conception of human agency, in which people consciously and intentionally exert volitions or acts of will to initiate voluntary actions. This paper offers an alternative interpretation of Libet's experiment. The cause of the intentional acts performed by the subjects in Libet's experiment should not be exclusively attributed (...) to special cerebral processes; conscious intentions formed at the beginning of the experiment, when the subjects received experimental instructions, must be taken into account. In addition, what the subjects were required to report was not a conscious intention or decision to act that conventionally figures in the etiology of voluntary action, but rather a perceived effective urge to move induced by specific experimental instructions. According to the alternative interpretation, the most suitable mental term correlated with the specific brain activity that precedes conscious, self-initiated voluntary bodily movements is volition. This account is supported by recent theories of function of the supplementary motor area . Therefore, the notion that we are the authors or originators of our own actions, which is fundamental to our common understanding of free will, moral responsibility and human dignity, can be preserved. (shrink)
Xian Qin zhu zi si xiang yan jiu.Zhikai Zhu -2010 - Shanghai: Fu dan da xue chu ban she.details"先秦诸子思想研究"汇聚了二十九篇论文, 二十三篇是已发表过的, 六篇为新作.一生中的粗文可能会扩张读者视野, 如"论孔子逻辑思想在先秦逻辑史上的地位"等.
Wu-Wei: Lao-zi, Zhuang-zi and the aesthetic judgement.Rui Zhu -2002 -Asian Philosophy 12 (1):53 – 63.detailsThe concept of wu-wei (nonaction) has undergone significant changes from Lao-zi to Zhuang-zi. This paper will argue that, while wu-wei in Lao-zi is a utilitarian principle, wu-wei of Zhuan-zi represents an aesthetic world-view. The aesthetic nature of the Daoist nonaction will be illustrated through Kant's concept of 'purposiveness without purpose'.
How to Make an Effort: A Reply to E. J. Coffman.Jing Zhu -2004 -Philosophical Papers 33 (1):23-33.detailsAbstract In ?On Making an Effort? E. J. Coffman develops what he takes to be a fairly serious problem for Robert Kane's positive theory of free choice, where the concept of efforts of will is pivotal.1 Coffman argues that the plausibility of Kane's libertarian account of free choice ?is inversely proportional to the plausibility of a certain principle of agency? (p. 12). And since the latter is quite plausible, the former is therefore ?at best fairly implausible? (p. 12). In what (...) follows I will show that Coffman's objection is in fact misplaced. Kanean libertarianism not only is in accordance with the essence of the principles of personal responsibility that Coffman advocates, it also affords a more plausible and intelligible account of the sources of personal responsibility superior to the proposed principles. (shrink)