Transition between alloy–element partitioned and non-partitioned growth of austenite from a ferrite and cementite mixture in a high-carbon low-alloy steel

The growth of austenite from a mixture of ferrite and cementite in low-alloy steels can be classified into three temperature ranges above the eutectoid temperature. In the first range, the austenite growth and cementite dissolution are controlled by alloy element diffusion from the beginning. In the second, they are controlled by carbon diffusion and switch to alloy element diffusion control at a later stage. In the third, the cementite dissolution, if the ferrite matrix has transformed to austenite upon heating, is controlled by carbon diffusion until completion. The transition temperatures between these ranges are evaluated in a quaternary alloy containing Mn and Cr by Thermo-calc and DICTRA simulation, and are in essential agreement with earlier experimental results. The proposed simple approach of calculating the transition temperatures may facilitate our understanding of austenitization kinetics and the design of heat treatment, for example, homogenization and soaking, of high-carbon steels.     

Qualitative tools and experimental philosophy

Experimental philosophy brings empirical methods to philosophy. These methods are used to probe how people think about philosophically interesting things such as knowledge, morality, and freedom. This paper explores the contribution that qualitative methods have to make in this enterprise. I argue that qualitative methods have the potential to make a much greater contribution than they have so far. Along the way, I acknowledge a few types of resistance that proponents of qualitative methods in experimental philosophy might encounter, and provide reasons to think they are ill-founded.     

The case of Peter: reflections on applied ethics in a neonatal intensive care unit

The case of Peter is reflected upon in order to highlight some of the moral theorising that could be brought to bear in the process of providing palliative care for sick neonates. The situation will be discussed using the theoretical lenses of deontological and virtue ethics. Nursing practice is considered as engaged moral reasoning where the nurse brings his/her beliefs, knowledge and experience into the situation and engages in reflexivity to provide appropriate ongoing patient care. The care should be provided in culturally sensitive manner and tailored to the needs of the newborn and their family. Nurses should initiate early consultations with colleagues, medical staff and families to address concerns about patient well-being in order to enhance the well-being of patients and families and to improve the work environment making it more conducive to care.     

论皮亚杰的方法论及其当代意义

皮亚杰从生物学的适应性和平衡化概念出发, 论证了有机体和外部环境之间的双向互动关系, 进一步通过认知过程与生物学过程的“同构”, 建立了一种结构论的发生认识论。发生认识论的主要论题包括:主客体相互作用论、认知结构的建构论, 以及心理逻辑论等。皮亚杰的理论建构方法有两个重要特征:第一, 皮亚杰强调功能相对于结构的逻辑先在意义。功能是有机体对环境的适应与平衡化。因此, 皮亚杰的方法论是一种功能论。第二, 皮亚杰方法论的思想基础是辩证法。皮亚杰的发生认识论一方面批判唯理论, 另一方面批判经验论, 最终形成了一套独特的认识论体系。皮亚杰的发生认识论对当今心理学和心灵哲学研究中诸多“难问题”, 诸如“他心问题”、“归纳问题”等, 可能提供了元理论层面和方法层面的引领和启发。     

Proactive yet reflective? Materializing proactive personality into creativity through job reflective learning and activated positive affective states

Studies linking proactive personality to creativity have primarily taken a future-oriented perspective, describing a process where individuals assess future opportunities and risks of creative endeavors. Complementing this approach, we draw on an attribution theory perspective to delineate how proactive personality relates to employee creativity through the serial mediating effects of job reflective learning—a backward-looking cognitive process—and activated positive affective states. Job reflective learning captures backward-looking self-assessments and the underlying internal causal attributions, and it is differentiated into two valences: job reflective learning from successes and from failures. Based on two separate multi-wave, multi-source field studies, our findings consistently show a serial mediation process linking proactive personality to creativity through both valences of job reflective learning and activated positive affective states. Job reflective learning from successes breeds joviality, whereas job reflective learning from failures arouses attentiveness. Joviality and attentiveness—both types of activated positive affective states—in turn promote creativity. We discuss the theoretical and practical implications of how proactive employees manifest their proactivity trait into actual creativity through backward-looking cognitive and affective processes.     

Sex, Aggression, and Pain: Sociobiological Implicatios for Theological Anthropology

Theological anthropology can be enriched by paying attention to insights into human behavior taken from sociobiology. The capacity for reflective self-consciousness enables the human animal to respond to basic instincts and drives in unprecedented ways. Humans follow gender-specific sexual strategies, display aggressive behavior, and respond to physical pain as do other animals. Yet human beings have the intellectual ability to express these tendencies uniquely in either destructive or constructive ways. The human being, unlike any other animal, must reckon with sexual ethics, the problem of violence, and the meaning of suffering. In developing the basic concepts of theological anthropology—good creation, natural evil, fall, sin, and image of God—sociobiological research can lead to more adequate understanding of the human.     

Curiosity as an Agent of Conscience

Public outcry against social outrages in our nation in the past few years have called for solutions that suggest that we as a nation believe that by strengthening the observational and punishing components of the superego of the American Psyche we can successfully overthrow our moral failings. By using data in regard to Adolph Eichman and other Nazis as clinical examples, it is suggested that the problem of our moral failings resides not in a deficient superego (a refluent moral agent) but in the insufficient development of conscience (a reflective consciousness). The roles that curiosity and impeded curiosity take in the development of morality are shown to be central to an understanding of how conscience differs from superego.     

A First Order Nonmonotonic Extension of Constructive Logic

Certain extensions of Nelson's constructive logic N with strong negation have recently become important in arti.cial intelligence and nonmonotonic reasoning, since they yield a logical foundation for answer set programming (ASP). In this paper we look at some extensions of Nelson's .rst-order logic as a basis for de.ning nonmonotonic inference relations that underlie the answer set programming semantics. The extensions we consider are those based on 2-element, here-and-there Kripke frames. In particular, we prove completeness for .rst-order here-and-there logics, and their minimal strong negation extensions, for both constant and varying domains. We choose the constant domain version, which we denote by QN^c₅, as a basis for de.ning a .rst-order nonmonotonic extension called equilibrium logic. We establish several metatheoretic properties of QN^c₅, including Skolem forms and Herbrand theorems and Interpolation, and show that the .rst-oder version of equilibrium logic can be used as a foundation for answer set inference.     

Reasonable Partiality from a Biological Point of View

Speculation about the evolutionary origins of morality has yet to show how a biologically based capacity for morality might be connected to moral reasoning. Applying an evolutionary approach to three kinds of cases where partiality may or may not be morally reasonable, this paper explores a possible connection between a psychological capacity for morality and processes of wide reflective moral equilibrium. The central hypothesis is that while we might expect a capacity for morality to include aspects of partiality, we might also expect these same aspects of the capacity to produce systemic forms of performance-based error. Understanding these errors helps point the way toward a theory of moral competence that includes aspects of both partiality and impartiality.