() Baul sadhana: introduction The word 'baul, in popular interpretation, is generally equated with singing: with folk song of Bengal or, more concretely, ...

Cách mạng 4.0 đã và đang mang đến sự thay đổi lớn trong đời sống của người dân Việt Nam. Sự tiện dụng của Grab, khả năng cập nhật 24/24 của Facebook, hay sự đa dạng về nội dung của YouTube thúc đẩy xã hội tiến tới thời đại mới của khởi nghiệp điện toán (Vuong, 2019). Ở đó, mỗi cá nhân đều có cơ hội để khởi nghiệp thông qua sự kết nối đến khắp mọi nơi trên thế giới (...) của Internet và sức mạnh tính toán nằm gọn trong long bàn tay. Hiện nay, sản xuất video trên YouTube, cho thuê nhà qua AirBnb, hay chạy xe cho Grab tạo ra công việc có khả năng tạo lợi nhuận cho người tham gia thị trường, dù là người lao động, hay tổ chức cung ứng dịch vụ. (shrink)

Để xem bóng đá và phát sóng video trực tiếp tốc độ cao, Xoilac là trang web lý tưởng. Đặc biệt, Xoilac không có bất cứ quảng cáo nào, vì vậy người xem vẫn thoải mái thưởng thức trận bóng đá mà không lo bị phân tâm vì bất cứ vấn đề gì. Ngoài ra, Xoilac có đội ngũ dày dặn chuyên môn, luôn đưa ra những nhận định chuẩn xác cho từng trận đấu bóng đá. Với đồ hoạ sinh (...) động, âm thanh lôi cuốn và sống động, Xoilac sẽ lưu lại dấu ấn sâu đậm trong tâm trí người xem bóng đá. (shrink)

In the current study, we examine the changes in disclosure practices on compliance and the fight against corruption at Siemens AG, a large German multinational corporation, over the period 2000–2011 during which a major corruption scandal was revealed. More specifically, we conduct a content analysis of the company’s annual reports and sustainability reports during that period to investigate the changes of Siemens’ corruption and compliance disclosure using both quantitative and qualitative methods. Through the lens of legitimacy theory, stakeholder analysis, and (...) organizational façades, we find evidence that Siemens changed its compliance and corruption disclosure practices to repair its legitimacy in the wake of the 2006 corruption scandal. We analyze these strategies more closely by using the rational, progressive, and reputation façades framework. Our primary findings suggest that the annual reports show peaks of disclosure amounts on corruption and compliance disclosures earlier than sustainability reports, which can be partly explained by analyzing the disclosures made about—and to—the different stakeholder groups. We find that the annual report focuses more on internal stakeholders such as employees, while the sustainability report focuses more on external stakeholders such as suppliers. We also find that the company uses the façades differently depending on which report is being analyzed. (shrink)

1 Introduction1 In the 1980s, hermeneutics was often incorporated into deconstructionism and literary theory. Rather than focus on authorial intentions, the nature of writing itself including codes used to construct meaning, socio-economic contexts and inequalities of power,2 Gadamer introduced a different perspective; the interplay between effects of history on a reader’s understanding and the tradition(s) handed down in writing. This interplay in which a reader’s prejudices are called into question and modified by the text in a fusion of understanding and (...) topic revitalized the study of the printed word. Gadamer’s turn to language for understanding the meaning of Being also appealed to the post-modern antipathy toward modernity and metaphysics.3 If the truth and validity of interpretations are limited to communities of language, then our mode of being in history cannot but be historical. This point of view rendered Gadamer’s phenomenological hermeneutics vulnerable to the critique of moral and epistemological relativism. However, Gadamer’s theory of interpretation also stems from re-examination of the beginning of knowledge in the Pre-Socratics and Plato, and on this basis, is receptive to another dimension of inquiry than that which was trending in North America. -/- At the East-West Center, University of Hawai’i at Manoa in 1982, Chung-ying Cheng for the first time introduced onto-hermeneutics to an audience of esteemed philosophers including Li Zehou, Ren Jiyu, Feng Youlan, and Zhang Liwen.4 In contrast to schools of deconstruction and literary theory that had disengaged the interpreter from trans-historical sources of meaning and truth, Cheng explained that interpreters exist within a cosmological order inextricable from responsibility to harmonize Heaven and Earth in creative acts of interpretation. By integrating Chinese cosmology into hermeneutics through ontology, he tacitly challenged philosophers in the West to re-examine assumptions about humanity’s place in nature and by implication, Gadamer’s recovery of the beginnings of knowledge in Western philosophy. -/- Cheng’s Neo-Confucianism is inspired by the method and goals of Thomé H. Fang. The following words by Fang seem to prefigure, although in an indistinct and bundled way, aspects of Cheng’s philosophy including a Mencian theory of human nature, comprehensive observation, and creativity: “In the very process of living in concord with creative Nature, Man is charged with an ideal to be fully realized in the light of the principle of comprehensive harmony.”5 Like Fang, Cheng reinvigorates Chinese culture and language, but not solely in order to vindicate the insights of Neo-Confucianism. He has studied Western thought, from pragmatism and the analytic school to German idealism and phenomenology, to unlock and clarify philosophical concepts within the Yijing tradition and thereby render them intelligible to Anglophones. The result has been an awakening of Western scholars to the moral and cultural consequences of decoupling their thought from metaphysical foundations that are neither dogmatic nor doctrinal. -/- Not unlike the dialectic of Gadamer’s dialogue form, onto-generative hermeneutics integrates contrary positions on the same topic in order to blend both sides into a world philosophy, or as Cheng says, a “totalizing or integrative theory,”6 not to be confused with a theoretical rewording of a theory. On the contrary, the universal scope and relevance of hermeneutics stems from personal experience. Just as Gadamer, in response to faction and strife, immersed himself in Plato during the war years, and developed a method with which to harmonize opposites, so too, according to On-cho Ng, was Cheng moved by faction, strife and political persecution to develop a path toward unity.7 Gadamer taught at McMaster University in Hamilton, Ontario, and Cheng at the University of Hawai’i at Manoa among other institutions in North America. They facilitated trans-continental educational and cultural ties. Similar experiences yield similar insights irrespective of differences of time and place. Hence, authors in this issue who reside in Europe, China and North America, delineate the differences between Gadamer and Cheng, yet also, in light of Cheng’s onto-generative method and cosmology, develop integrative theories. Due to the page-budget restriction of the publisher, certain articles of this special theme will be subsequently published in the next issue. -/- 2 Integrative Theory This special issue of The Journal of Chinese Philosophy confirms a dimension of hermeneutics that Cheng has both motivated and inspired. The contributors do not abide by the conviction that since thought is mediated by language, interpretations cannot transcend culture. On the contrary, their research exemplifies the fruits of trans-historical onto-dialogical hermeneutics within limits defined by their field inquiry, organized into Parts I and II, around three themes: language, the philosophy of history and ethics. -/- Andrew Fuyarchuk introduces the theme of ontology in relation to Gadamer’s turn to language. Fuyarchuk argues that Chung-ying Cheng’s criticism of Gadamer’s hermeneutics is informed by Heidegger’s concept of Dasein and thereby overlooks how Gadamer’s Platonic-Pythagorean problem of the division between the One and Many is harmonized in the event of language, which in turn positions Gadamer in proximity to the presupposed grounds of receptivity in Cheng’s onto-generative hermeneutics. Lauren Pfister’s contributing article addresses the year 2000 meeting between Cheng and Gadamer in Heidelberg and expands the transhistorical grounds of meaning in Gadamer to matters of theology. Pfister’s summary of the written Chinese record of their conversation indicates that Cheng does not address the role of Christian philosophy and hence, the role of the inner word in Gadamer’s hermeneutics. This is important not only for detecting changes in Cheng’s philosophical development, but also for modifying his hermeneutics along the lines of a living conversation, possibilities explored by Pfister in a sequel to the article submitted to this issue. Nevertheless, by raising the issue of how Gadamer’s turn to language for understanding the meaning of Being extends possibilities in Cheng’s thought, Pfister anticipates the article by Katarina Gajdosova. She returns to the roots of Chinese thought during the Warring States period and broadens the meaning of names in recently excavated texts. Contrary to the conventions about how to understand terms, she appeals to both Heidegger’s ontology and Cheng’s notion of receptivity and creativity to reinterpret naming in relation to cosmology. Along the same lines, insofar as the event of Being is lingual, Jay Goulding captures its emergent structure in an evolving community of scholars and scholarship. He recalls his philosophical journey toward Cheng’s philosophy that begins in conversations with Gadamer at McMaster University in Hamilton, leads to Heidegger and Asian thought, expands into turning points with teachers and colleagues from various backgrounds that by increments contributed to Goulding’s formulation of “Daoist phenomenology.” -/- Although differing traditions guide their inquiries and research, Cheng and Gadamer recall the wisdom of the past to ameliorate the fragmentation in contemporary life. This leads them to re-examine the origins of philosophy; historical roots and thus sources of creative re-interpretations East and West whose affinities are developed in contributions by Hyun Höchsmann and Friederike Assandri. Höchsmann assesses convergences and divergences in the origins of Chinese and Western philosophy (Confucius and Socrates, the Yijing and Pre-Socratics) that culminates in pairing Gadamer’s understanding of paideia in the context of Plato’s political cosmology in the Timaeus with moral and social cultivation in The Western Inscription. She delineates the limits of this comparison which in turn justifies introducing Vattimo’s notion of locality. Assandri’s comparative analysis moves between India and China, Buddhism and Tang Daoism. Based on Gadamer’s argument that writing detaches concepts from their cultural moorings, she defines and applies three levels of understanding in onto-generative hermeneutics to Buddhist terms that were assimilated into the Benji Jing and in so doing clarifies essential dimensions of Daoism. -/- Contributions by Stephen Palmquist and Nicholas Brasovan position Cheng in relation to Kant and Gadamer by way of Aristotle’s ethics respectively. On the one hand, Palmquist plots Cheng’s evolving criticism of Kant’s moral philosophy and draws on crucial dimensions of Gadamer’s hermeneutics to reposition that criticism in a constructive relation to Kant’s emphasis on the philosophical conditions of morality while also indicating how religious dimensions of his thought answer Cheng’s concerns for lived moral action. For Palmquist, Gadamer enables a constructive criticism of Cheng. On the other hand, Brasovan compares Cheng’s Yijing-based account of moral deliberation with Gadamer’s Aristotelian-based ethics and reasons that in contrast to Cheng, Gadamer’s hermeneutical consciousness is disengaged from practical knowledge. For Brasovan, Cheng is a constructive critic of Gadamer. Palmquist and Brasovan’s divergent angles on Gadamer and Cheng map onto a dialectic of contrast and complementarity that constitutes the inner logic of Cheng’s philosophy. In other words, Gadamer and Cheng ought to be read alongside one another for the sake of removing discrepancies and contradictions, which constitutes the organic structure of their thinking. -/- 3 Our Mode of Being in History Is Not Historical The conversations between Cheng and Gadamer in this issue of The Journal of Chinese Philosophy pivot on language, philosophy of history and ethics within a comparative framework of analysis, but also explore the grounds that make the comparisons possible. Those grounds are informed by Chinese cosmology, and function to wrest Gadamer from the shadow of Heideggerian facticity and reposition him within the range of Cheng’s ideas about our place in nature that is embedded in his question about how mind emerges from inorganic matter.8 -/- For Gadamer scholars of Heidegger, human finitude, our ownmost individuating death ensures that hermeneutics is always open to the other as other, always on the way toward understanding the meaning of Being. To arrest the process in a concept of “the Absolute” cannot but represent someone’s point of view, and thereby render hermeneutics indistinguishable from ideology. However, insofar as finitude is defined by them in terms of an onto-theological concept of immorality, finitude is a metaphysical concept consistent with epistemologies and confuse beings with the meaning of Being. As a result, the celebrated political value of hermeneutics to always be on the way toward an understanding of the meaning of Being admits subtle variations on the same worldview that are insufficiently self-critical. -/- Gadamer scholars of Heidegger are right. A transformation in ethos and opening to the meaning of Being depends on awareness of finitude. Yet this awareness does not yield openness to more of the same, i.e., discourse structurally incapable of coming to unity but instead, for both Gadamer and Cheng, openness to a distinctly different ontological dimension of reality. As Sandra Wawrytko and So-Seong Park indicate,9 this ontological dimension is prefigured in the experience of being-as-a-whole or the totality of all possible relations in both Chinese totemic shamanistic rituals,10 and Greek Dionysian festivals.11 Through these religious experiences human ethos and therefore consciousness is expanded and elevated from being centered on one’s ownmost concerns toward an affinity with all sentient beings from insects and plants to animals. The channel for this affinity is an auditory disposition and hence, the emotions, compassion, and feeling response. -/- The capacity for an auditory disposition, or as Gadamer calls it, listening consciousness to respond to the inter-relationality and therefore inherent balance of nature is developed through music, song and dance of the religious rituals and festivals. They facilitate the unity of mind with nature. This use of music, that transforms ordinary consciousness, explains Cheng’s emphasis on the receptivity of feeling response in comprehensive observation, and Gadamer’s emphasis on openness to the other in attunement. However, an auditory disposition characteristic of pre-literate oral cultures that reveals the “All” need not rely on religion. As theorists about the evolution of language have explained,12 modern languages preserve their pre-historical past in music or prosody. That is to say, the song and dance that revealed the totality of inter-related beings to an ethos of comprehensive observation and attunement toward beings in classical civilizations is retained in the back-and-forth movement or rhythm of the dialogue form. Our mode of being in history is a mode of being in nature – through the music of language. -/- While alerting the reader to the limits of a nominalist interpretation, Gadamer expresses the inner law of the nature as follows: “in perishing there is always becoming, and in becoming there is always perishing.”13 Considered in process, opposites generate and blend into each other. This law of nature applies to everything.14 Hence, in a manner comparable to Pfister’s concluding insights, onto-dialogical hermeneutics is not only open to discrete events of otherness but moreover, to the moving structure of reality expressed, as Gajdosova suggests, in the existential moment of naming. Considered as interplay of tension and resolution with a life of its own, the dialectic of a dialogue is self-similar to the way in which an organism grows (by instinct). There is, therefore, a sense in which the art of interpretation extends the human mind into the eternal cycles of nature such that we participate in the articulation of the inner telos/homeostasis toward which all beings strive and importantly for Gadamer scholars of Heidegger, within the material limits of energy to which our embodied minds are self-evidently subject. In mortality there is always immortality. (shrink)

In response to the growing importance of environmental issues, more and more consumers are turning to anti-consumption by reducing, rejecting, or avoiding consumption. Covering the intersection of sustainable consumption and anti-consumption, previous studies relied on socio-cognitive models to explain this decision. In order to extend their findings, we consider the moral and emotional perspectives to examine reducing consumption for environmental reasons in a particular context, i.e. air travel. It is against this backdrop that we propose a conceptual model that includes (...) moral foundations as the main antecedent, followed by anticipated guilt and personal responsibility, while intention to reduce consumption (i.e. air travel) for environmental reasons, positive word of mouth about reducing air travel (WOM) and environmental activism represent the outcomes. The proposed model is tested on a sample of 511 respondents from a UK online consumer panel. Our results confirm the importance of moral foundations, anticipated guilt and personal responsibility and their interplay in the prediction of intention to reduce consumption for environmental reasons. Anticipated guilt influences WOM, while personal responsibility influences activism. In addition, intentions to reduce consumption for environmental reasons have a positive impact on WOM and environmental activism. There are several implications for public policy makers and NGOs that fight against climate change that derive from these findings, as well as research opportunities for academics interested in this topic. (shrink)

1. Tan'gun sinhwa ŭi wŏnhyŏngjŏk segyegwan kwa p'ungnyu chŏngsin -- 2. Wŏnhyo ŭi hwajaeng sasang kwa muaehaeng ŭi silch'ŏn -- 3. Ŭisang ŭi 'Hwaŏm ilsŭng pŏpkyedo' e nat'anan Hwaŏm sasang -- 4. Chinul ŭi Tono chŏmsu wa Chŏnghye ssangsu sasang -- 5. Sambong Chŏng To-jŏn ŭi Pulgyo paech'ŏk ŭi naeyong kwa sŏngkyŏk -- 6. T'oegye Yi Hwang ŭi ch'ŏrhakchŏk ipchang kwa 'Kyŏng' sasang -- 7. Kobong Ki Tae-sŭng ŭi hangmun chŏngsin kwa ch'ŏrhak sasang -- 8. Ugye Sŏng Hon ŭi (...) Tohakchŏk sam kwa hangmun yŏnwŏn -- 9. Yulgok Yi I ŭi Taedong sahoeron kwa ch'ŏrhakchŏk chihyang -- 10. Sŏgye Pak Se-dang ŭi Sirhakchŏk sayu ŭi kich'o -- 11. Namdang Han Wŏn-jin ŭi yŏksa insik kwa Chosŏn chunghwajuŭi -- 12. Sŏngdam Song Hwan-gi ŭi 'T'aegŭk tosŏl' haesŏk ŭi kibon ipchang -- 13. Kanjŏng Yi Nŭng-hwa 'Chosŏn Togyosa' ŭi haksulsachŏk ŭiŭi wa han'gye -- 14. Manhae Han Yong-un i pon chuch'e ŭi munje wa minjok chagyŏl ŭi wŏnch'ik -- purok. T'algyŏnggye sidae ŭi Han'guk ch'ŏrhak ŭi inmunhakchŏk ŭiŭi wa chŏnmang: Yulgok ŭi ch'ŏrhak. (shrink)

Through investigation of Chinese cultural ideals and life practices, Prof. Cho-yun Hsu constructs an original portrait of Chinese spiritual life. Apart from focusing on the exalted subtleties of the scholarly elite, Prof. Hsu pays more attention to the everyday people's cultural idea. By examining their daily practices (including eating, living, medical practices, poems, songs, art, and literature) and "collective memory" such as legends, he seeks to clarify Chinese ideas concerning the universe, human life and nature, from traditional times down to (...) the present day. Different from Judeo-Christian tradition centered on "God," the spiritual life of the Chinese people develops around ideas of being "human," and thus cultivating an interactive relationship between man, time, and space. Cho-yun Hsu considers the mode and direction of Chinese culture will impact the future of the entire world. Based on his observation, Western civilization represented by Europe and America nowadays is on the verge of a great change. The problems they are facing, including various crises of alienation and separation from nature, are, in terms of their basic origins, problems for which Western civilization lacks the resources to arrive at a solution. Thus, Chinese culture centered on the man and on the idea of intimate, interdependent relations between man and nature, might offer another solution. It is expected that, by integrating its features into modern civilization, Chinese culture can continue to prosper and be of benefit to the future of the world. (shrink)

This paper is devoted to develop a nonlocal and time-delayed reaction-diffusion model for HIV infection within host cell-to-cell viral transmissions. In a bounded spatial domain, we study threshold dynamics in terms of basic reproduction numberR0for the heterogeneous model. Our results show that ifR0 1, virus will persist in the host environment.

Cognitive Science, Volume 46, Issue 2, February 2022.

This article empirically investigates how Chinese executives and managers perceive and interpret corporate social responsibility (CSR), to what extent firms' productive characteristics influence managers' attitudes towards their CSR rating, and whether their values in favour of CSR are positively correlated to firms' economic performance. Although a large proportion of respondents express a favourable view of CSR and a willingness to participate in socially responsible activities, we find that the true nature of their assertion is linked to entrepreneurs' instincts of gaining (...) economic benefits. It is the poorly performing firms, or rather, firms with vulnerable indicators -smaller in size, State-owned, producing traditional goods and located in poorer regions that are more likely to have managers who opt for a higher CSR rating. Managers' personal characteristics per se are not significant in determining their CSR choice. Moreover, controlling for other observed variables, we find that managers' CSR orientation is positively correlated with their firms' performance. The better-off a firm is, the more likely its manager is to get involve in CSR activities. Firms with better economic performance before their restructuring would sustain higher postrestructuring performance. (shrink)

Inhibition-induced forgetting refers to impaired memory for the stimuli to which responses were inhibited. The present study aimed to examine if it would be modulated by the processing of threateni...

The presence of temporal adjectives in possessive nominals like John's former car creates two interpretations. On one reading, the temporal adjective modifies the common noun (N-modifying reading). On the other, it modifies the possession relation (POSS-modifying reading). An explanation for this behavior is offered that appeals to what occurs in possessive sentences like John has a former car (N-modifying reading) and John formerly had a car (POSS-modifying reading). In the sentential cases, the source of two readings is two distinct, modifiable (...) phrases. Given the parallels, we propose a structure for possessive nominals analogous to that of possessive clauses. Specifically, we argue that such nominals include a locative small-clause structure, following Freeze (1992), and we explain the ambiguity structurally, as a simple matter of where temporal adjectives attach (NP vs. PP). We show that this analysis provides a straightforward basis for the semantic composition of possessive nominals. (shrink)

We sought to expand on the concept of the moral self to include not just the duty to develop the moral self but the moral duty to develop the self in both moral and non-moral ways. To do this, we focused on how leaders can promote a climate in which individuals feel a sense of duty to develop themselves for the betterment of the team and organization. In our theoretical model, duty orientation plays a key role in determining whether followers (...) will seek performance feedback to develop their work selves. We hypothesized that followers with ethical leaders would experience a greater sense of duty to improve themselves and would therefore be more likely to seek and less likely to avoid leader feedback. Drawing on social learning theory, we hypothesized that duty orientation would mediate the relationship between ethical leadership and feedback-seeking/feedback-avoiding behavior, expert power would moderate the relationship between ethical leadership and duty orientation such that duty orientation would be higher when followers perceived their leader to be both highly ethical and competent, and expert power would moderate the indirect effect of ethical leadership on feedback-seeking/feedback-avoiding behavior through duty orientation. We tested our hypotheses using a sample of 249 followers across two waves of data collection. Results suggest that ethical leadership and leader competence interact to drive followers’ duty orientation, thereby reducing followers’ feedback-avoiding behaviors. Further, ethical leadership had a direct positive relationship with followers’ feedback-seeking behaviors. (shrink)

The role of nursing faculty members in charge of ethics education is important. Although all nursing students receive the same bioethics education, their experiences differ, related to ethical qualification, which depends on the personal socialization process. This Korean study aimed to provide nursing faculty members with the basic data to help them develop as bioethics experts and provide nursing students with knowledge to improve their ethical decision-making abilities. We used a survey design to assess recognition of bioethical issues and ethical (...) qualification in nursing students and faculty members. A total of 1225 undergraduate students and 140 faculty members participated in this study. The results revealed that nursing students and nursing faculty members generally understood the seriousness of various bioethical issues and both considered the most serious issue to concern abortion. Ethical behavior can be improved by education, and accordingly, nursing ethics should be a mandatory subject, rather than an elective one. (shrink)

Linguistic justice is concerned with the just way of politically regulating linguistic diversity. Today, the linguistic-justice debate may be differentiated into three different domains: interlinguistic justice, intralinguistic justice, and global linguistic justice. Each of these domains has, to a significant extent, attracted different authors and debates, although the normative system underlying them is structurally similar. This introductory piece aims to provide context for our symposium dedicated to linguistic justice and migration by, first, giving an overview of linguistic justice, second, linking (...) linguistic justice to migration, and, finally, providing an overview of the various papers in the symposium, situating them against the background developed in the first two sections. (shrink)

Green Human Resource Management supports promoting and incorporating sustainable development with regard to their resources. Managers and customers actively utilize the limited resources efficiently and effectively to accomplish environment-friendly goals and objectives. The study focuses on investigating the moderating role of diffidence between Green HRM, among eco-friendly behavior and Employee Performance of frontline employees of the hospitality sector. Two hundred ten individuals particapted in the research from hospitality sector with regard to examine green HRM policies of employees along with their (...) influence on consumer buying behvaiour. Frontline employees incorporated the data on HRM performance, eco-friendly behavior, and diffidence. Besides, consumers gave their opinion on consumer buying behavior. The study’s findings revealed that Green HRM, aka Green HRM, directly impacts consumer behavior. In addition to this diffidence moderates the relationship between Green HRM and employee performance and employee eco-friendly behavior. Besides, future studies can explore the clothing and banking sector as the current study was conducted in fast food sector. (shrink)

The Democratic Republic of Congo has vast natural resources, many of which are regularly exploited by the electronics industry. Unfortunately, in addition to these resources, there are widespread human rights abuses committed by armed groups entrenched in the eastern part of the Democratic Republic of Congo. These armed groups are using profits from these minerals as a source of funding. Their human rights abuses have led to a growing humanitarian interest in the region and prompted the international community to action. (...) This paper explores the conflicts in the Democratic Republic of Congo, provides an understanding of the link between human rights abuses and conflict minerals, and interprets and critiques the legal actions of the international community. (shrink)

Tissue P systems with evolutional communication rules are computational models inspired by biochemical systems consisting of multiple individuals living and cooperating in a certain environment, where objects can be modified when moving from one region to another region. In this work, cell separation, inspired from membrane fission process, is introduced in the framework of tissue P systems with evolutional communication rules. The computational complexity of this kind of P systems is investigated. It is proved that only problems in class P (...) can be efficiently solved by tissue P systems with cell separation with evolutional communication rules of length at most, for each natural number n≥1. In the case where that length is upper bounded by, a polynomial time solution to the SAT problem is provided, hence, assuming that P≠NP a new boundary between tractability and NP-hardness on the basis of the length of evolutional communication rules is provided. Finally, a new simulator for tissue P systems with evolutional communication rules is designed and is used to check the correctness of the solution to the SAT problem. (shrink)

In a dynamic environment, even if an agent makes a plan to obtain a goal, the environment might change while the agent is executing the plan. In that case, the plan, which was initially valid when it was made, might later become invalid. Furthermore, in the process of replanning, it is necessary to take into account the side effects of actions already executed. Nowadays, HTN planning is becoming popular among agent researchers because its task decomposition algorithm is efficient and suitable (...) for joint planning in multi-agent systems. However, the dynamic replanning algorithm of HTN planning has not yet been established. In order to solve this problem, we have previously presented an agent life cycle that integrates HTN planning, action execution, knowledge updates, and plan modification. In that agent life cycle, the plans are always kept valid according to the most recent knowledge and situation. However, when one plan does not work and the agent starts using an alternative plan, it sometimes undoes some actions that do not have to be undone. The source of this problem lies in the need to have total-order plans. In other words, all the actions have to be sequentially ordered even when the order is not important in some parts of the plan. This paper extends our previous agent life cycle and presents new ways to avoid unnecessary action cancellation. This enables the agent to handle partial-order plans and to make use of two kinds of undoing actions: sequential undoing actions and concurrent undoing actions. (shrink)