Ribonucleotide reductase (RNR) catalyzes the rate limiting step in the production of deoxyribonucleotides needed for DNA synthesis. In addition to the well documented allosteric regulation, the synthesis of the enzyme is also tightly regulated at the level of transcription. mRNAs for both subunits are cell cycle regulated and inducible by DNA damage in all organisms examined, including E. coli, S. cerevisiae and H. sapiens. This DNA damage regulation is thought to provide a metabolic state that facilitates DNA replicational repair processes. (...) S. cerevisiae also encodes a second large subunit gene, RNR3, that is expressed only in the presence of DNA damage. Genetic analysis of the DNA damage response in S. cerevisiae has shown that RNR expression is under both positive and negative control. Among mutants constitutive for RNR expression are the general transcriptional repression genes, SSN6 and TUP1. Mutations in POL1 and POL3 also activate RNR expression, indicating that the DNA damage sensory network may respond directly to blocks in DNA synthesis. A protein kinase, Dun1, has been identified that controls inducibility of RNR1, RNR2 and RNR3 in response to DNA damage and replication blocks. This result suggests that the RNR genes in S. cerevisiae form a regulon that is coordinately regulated by protein phosphorylation in response to DNA damage. (shrink)

The author discusses the contributions of grounded theory and grounded action to the development of a new, and evolutionary, theoretical framework for understanding diversity as a complex phenomenon. She discusses the work of Thomas and Gregory as pioneers in expanding the conceptualization of diversity, arguing that this new understanding increases the potential for creative action in systems.

(2006). Introduction. World Futures: Vol. 62, No. 7, pp. 477-480.

Much of Halford et al.'s discussion of vector models for representing relations concerns the perceived inadequacies of alternative methods with respect to chunking, binding, systematicity, and resource requirements. Vector-based models for storing relations are in their infancy, however, and the relative merits of different schemes are not so clearly in favor of their STAR scheme as Halford et al. portray.

This note analyses a recent case of the English Court of Appeal in which the applicant, R.G., a gay, H.I.V. positive Colombian claimed asylum on grounds of persecution due to his sexuality. Both the Asylum and Immigration Tribunal and the Court of Appeal rejected R.G.’s claim for asylum. The Court of Appeal’s first and most significant reason was that the alleged persecution was not sufficiently serious or life threatening, since R.G. had not suffered actual physical violence throughout the 13 years (...) that he had lived as a closeted gay man in Colombia. Secondly, the court considered the real reason for R.G.’s seeking asylum was his desire to access free health care in order to manage his H.I.V. His allegations of persecution on the grounds of sexuality were viewed as a sham. This note is critical of the approach taken by the Court, which, it is argued, displays an insensitivity to the complexity of sexual identity and its performance and has the effect of perpetuating and legitimating discrimination against lesbians and gay men. (shrink)

Peroxisomal matrix proteins are synthesized on cytosolic ribosomes and rapidly transported into the organelle by a complex machinery. The data gathered in recent years suggest that this machinery operates through a syringe-like mechanism, in which the shuttling receptor PEX5 − the “plunger” − pushes a newly synthesized protein all the way through a peroxisomal transmembrane protein complex − the “barrel” − into the matrix of the organelle. Notably, insertion of cargo-loaded receptor into the “barrel” is an ATP-independent process, whereas extraction (...) of the receptor back into the cytosol requires its monoubiquitination and the action of ATP-dependent mechanoenzymes. Here, we review the main data behind this model. The peroxin PEX5 is the peroxisomal matrix protein receptor. It shuttles between the cytosol and the organelle membrane, where it gets inserted into the docking/translocation module, thus pushing the cargo-protein into the peroxisome lumen. Resetting the system involves PEX5 monoubiquitination and its extraction from the membrane by the AAA-ATPases, PEX1/PEX6. (shrink)

Regulatory authorities have advised smokers who would not or could not quit smoking to switch to lower tar cigarettes. Smoking such cigarettes was seen as a means of reducing the harm caused by smoking, but not as offering a ‘safe’ smoking option. Correspondingly manufacturers have been required to place tar and nicotine information on packet labels and/or advertisements. This paper explores the possibility that the conventional format for conveying tar and nicotine information could be responsible for the belief, held by (...) a significant proportion of smokers, that some brands of lower tar cigarettes are absolutely ‘safe’. To deal with this situation it is suggested that changes should be made to health warnings, and tar and nicotine communications. Proposed changes to the latter are evaluated in terms of their ethical and public health implications. The authors conclude that brand specific warnings and a classification of cigarettes as either ‘Very Dangerous’ or ‘Dangerous’, is best suited to reconciling consumer needs for information with the public health objectives of reducing the harm caused by smoking. (shrink)

The editors of the JRE solicited short essays on the COVID‐19 pandemic from a group of scholars of religious ethics that reflected on how the field might help them make sense of the complex religious, cultural, ethical, and political implications of the pandemic, and on how the pandemic might shape the future of religious ethics.

We argue that two main accounts of hypocrisy— the deception-based and the moral-non-seriousness-based account—fail to capture a specific kind of hypocrite who is morally serious and sincere "all the way down." The kind of hypocrisy exemplified by this hypocrite is irreducible to deception, self-deception or a lack of moral seriousness. We call this elusive and peculiar kind of hypocrisy, pure hypocrisy. We articulate the characteristics of pure hypocrisy and describe the moral psychology of two kinds of pure hypocrites.

Ethics, communication skills, and the law ('practice skills') are important in all aspects of modern health care. Doctors and nurses must be sensitive to the ethical aspects of their work and understand the legal framework within which clinical decisions are made. Well developed skills of communication, with patients, their relatives and other members of the clinical team, are a key feature of good clinical practice Until recently, the important of practice skills has been relatively neglected in health care education. This (...) situation is changing. The UK General Medical Council, for example, has recently identified three aspects as part of the core of the medical course, and the move to degree courses in nursing has led to an increasing focus of practice skills in nurse education. The Oxford Practice Skills Project (OPSP) team have developed a course, within the University of Oxford Clinical School, which covers the teaching of practice skills in an integrated manner. This course is widely recognized as one of the most systematic developments of education in these areas. This manual describes the OPSP course in detail and provides teaching materials. Although developed initially for medical students, it should be helpful to all those involved in teaching ethics, communication skills, and law in health care. Each Seminar is described in detail Tutors' guides are provided Student handouts are included Contains guidelines for introducing 'practice skills' into a busy clinical curriculum Includes over forty case histories for teaching and examination Gives details of many useful sources and resources Details a variety of teaching methods together with their advantages and disadvantages Provides an ethics teaching toolkit for clinical teachers new to this area Readers are welcome to photocopy any part of this manual for their own teaching. (shrink)

Humanism offers students a clear and lucid introductory guide to the complexities of Humanism, one of the most contentious and divisive of artistic or literary concepts. Showing how the concept has evolved since the Renaissance period, Davies discusses humanism in the context of the rise of Fascism, the onset of World War II, the Holocaust, and their aftermath. Humanism provides basic definitions and concepts, a critique of the religion of humanity, and necessary background on religious, sexual and political themes of (...) modern life and thought, while enlightening the debate between humanism, modernism and antihumanism through the writings and works of such key figures as Pico Erasmus, Milton, Nietzsche, and Foucault. (shrink)

Aristotle's definition of time as 'a number of motion with respect to the before and after' has been branded as patently circular by commentators ranging from Simplicius to W. D. Ross. In this book Tony Roark presents an interpretation of the definition that renders it not only non-circular, but also worthy of serious philosophical scrutiny. He shows how Aristotle developed an account of the nature of time that is inspired by Plato while also thoroughly bound up with Aristotle's sophisticated (...) analyses of motion and perception. When Aristotle's view is properly understood, Roark argues, it is immune to devastating objections against the possibility of temporal passage articulated by McTaggart and other 20th century philosophers. Roark's novel and fascinating interpretation of Aristotle's temporal theory will appeal to those interested in Aristotle, ancient philosophy and the philosophy of time. (shrink)

In this paper we explore the thesis that the role of argumentation in practical reasoning in general and legal reasoning in particular is to justify the use of defeasible rules to derive a conclusion in preference to the use of other defeasible rules to derive a conflicting conclusion. The defeasibility of rules is expressed by means of non-provability claims as additional conditions of the rules.We outline an abstract approach to defeasible reasoning and argumentation which includes many existing formalisms, including default (...) logic, extended logic programming, non-monotonic modal logic and auto-epistemic logic, as special cases. We show, in particular, that the admissibility semantics for all these formalisms has a natural argumentation-theoretic interpretation and proof procedure, which seem to correspond well with informal argumentation. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Decision-Making as a Broader ConceptJacinta O. A. Tan (bio), Anne Stewart (bio), and Tony Hope (bio)KeywordsCompetence, decision-making, capacity, anorexia nervosa, autonomy, values, identityWe thank Demian Whiting for the thoughtful critique of aspects of our paper (Tan et al. 2006a). A primary aim of our research was to provide empirical grounds on which to stimulate discussion about the nature of decision-making capacity (DMC). Whiting criticizes in particular the concept (...) of 'pathological values' that we suggested might be relevant in the assessment of DMC and in the related issue of deciding when a patient's refusal of beneficial treatment should be overridden.Whiting's central concern is with DMC. Whiting argues that the absence of pathological values should not be a criterion for DMC. We are unclear whether he is also arguing that pathological values do not provide a reason of any kind for overriding treatment refusal. At the end of the paper he writes: "we cannot justify compulsory treatment of patients who have pathological values... on the grounds that these patients lack DMC" (2009, XX). This seems to leave open the possibility that we may be able to justify compulsory treatment of patients who have pathological values on grounds other than that they lack DMC. As we wrote in our response to the discussants of our original paper, "The primary issue for us is whether the reasons for refusal to which we draw attention provide grounds for overriding refusal, and if they do how they can be characterized in such a way as to avoid the ever-present danger of simply overriding autonomy in a patient's best interests" (Tan et al. 2006b, 300).In deciding on whether to use compulsory treatment, there are other relevant factors that may need to be considered, such as the seriousness of the decision, which determines the threshold for competence. However, in this response we consider three issues. First, we argue that the current concept of DMC is by no means so clear cut or generally agreed upon as Whiting implies, and that some of the lack of clarity relates to pathological values. Second, that the concept of DMC is itself dependent on accounts of autonomy, and that it is plausible that pathological values can affect autonomy. Third, we directly consider the question of whether a coherent account of pathological values might be given based on a concept of authenticity.The Current Criteria for DMCWhiting argues that the current criteria for DMC are correct and that an additional criterion along the lines of absence of pathological values should not be added. This argument assumes that there is a clear and agreed understanding of the current criteria. We believe this is not the case for three reasons.(i) Whiting begins his account of DMC by saying that it is normally taken to include: "(1) [End Page 345] understanding (and appreciation)" (2009, 341). Already there is an area of dispute, and the use of parentheses reflects this. The concept of 'appreciation' was developed by Grisso and Applebaum (Grisso, Appelbaum, and Hill-Fotouhi 1997). It is not included in either English common law development, for example (ReC), nor in the criteria specified in the Mental Capacity Act 2005. More important, Grisso and Appelbaum in their comment on our original paper (2006) argue that our work advances thinking about 'appreciation' rather than requiring that we add new elements. The implication is that they believe that what we have called pathological values are relevant to the assessment of capacity and are already included in an account of capacity that incorporates the criterion of 'appreciation.' In our response, we argued that pathological values are not entirely captured within the account of appreciation that Grisso and Appelbaum had previously given. We do not want to revisit that issue here, but the point of relevance is that on one view (that of Grisso and Appelbaum) pathological values are already included in the current criteria for DMC as part of the concept of appreciation, whereas on Whiting's view they are not.(ii) Even if there were agreement over the wording and concepts relevant to DMC there is a further important issue: how are those concepts... (shrink)

This study provides evidence on the governance of CSR policies and activities by Indian central government-owned companies [i.e. Central Public Sector Enterprises ] within a unique mandatory regulatory setting. We utilise the multi-level ‘Logic of governance’ conceptual framework and draw upon interview data collected from 25 senior managers in 21 CPSEs to assess the dynamics of CSR implementation within CPSEs. Our findings indicate most managers believe that a mandatory policy has enhanced the accountability and commitment of governing boards and senior (...) management to CSR. However, CSR policy implementation within Indian CPSEs is still nascent, fraught with bureaucratic hurdles, insufficient human and knowledge resources, limited stakeholder analysis and over-emphasis on CSR budget utilisation as an outcome. Several key areas for improvements include the need for better translation of national CSR policy goals to firm-level strategies, more formal assessment of stakeholder needs, clearer communication lines with external service providers, such as NGOs and local government agencies, and the better evaluation of CSR outcomes. The findings of this study have implications for both theory and policy development. (shrink)

Based on a community psychology perspective, this qualitative study explores the community-inclusion effort of one of the largest pulp and paper companies in the world. Extending the literature on workforce diversity/inclusion, we present the community-inclusive organizational framework, which signifies the dynamics of community inclusiveness of organizations highlighting key managerial accountabilities based on the community psychology perspective. Theoretical and practical implications are presented for promoting community-inclusive organizations, along with avenues for further research.

Este artículo explora la relación entre la filosofía del límite de Eugenio Trías y el sufismo de Ibn ʿArabī. En primer lugar, pretende explicar la función de la filosofía de la religión en el sistema triasiano y por qué el maestro andalusí ocupa un lugar privilegiado en ella. Segundo, se ocupa de algunos aspectos esenciales de la doctrina akbarí que la filosofía del límite obtura, como la declaración de la unidad del Ser (tawḥīd), la conjugación de lo exotérico y lo (...) esotérico, la superación de la propia creencia, el camino de la servidumbre (ʿubūdiyya), el tránsito de la pasión súbita de amor (hawā) al amor espiritual (ḥubb), la caballería espiritual (futuwwa) y la morada de la no-morada (maqām lā maqām), los cuales comparten un nexo común: el trascendimiento de lo egoico y el interés en el otro en tanto otro. Finalmente, se defenderá que la obturación triasiana se debe tanto al influjo de Henry Corbin, como sobre todo, a las propias limitaciones de su proyecto filosófico, para el que el Ibn ʿArabī ausente constituye una suerte de sombra. (shrink)

To address the underrepresentation of women in philosophy effectively, we must understand the causes of the early loss of women. In this paper we challenge one of the few explanations that has focused on why women might leave philosophy at early stages. Wesley Buckwalter and Stephen Stich offer some evidence that women have different intuitions than men about philosophical thought experiments. We present some concerns about their evidence and we discuss our own study, in which we attempted to replicate their (...) results for 23 different responses to 14 scenarios . We also conducted a literature search to see if other philosophers or psychologists have tested for gender differences in philosophical intuitions. Based on our findings, we argue that that it is unlikely that gender differences in intuitions play a significant role in driving women from philosophy. (shrink)

We provide a taxonomy of the two most important debates in the philosophy of the cognitive and neural sciences. The first debate is over methodological individualism: is the object of the cognitive and neural sciences the brain, the whole animal, or the animal--environment system? The second is over explanatory style: should explanation in cognitive and neural science be reductionist-mechanistic, inter-level mechanistic, or dynamical? After setting out the debates, we discuss the ways in which they are interconnected. Finally, we make some (...) recommendations that we hope will help philosophers interested in the cognitive and neural sciences to avoid dead ends. (shrink)

The paper examines when unilateral and bilateral pretence may be beneficial distinguishing between positive and negative externalities. Using a two-player single period game and defining altruism, selfishness and meanness as "sentimental continuity" it is shown how the optimal level of the pretended sentimentality is determined. The novelty of the model is that the optimal degree of altruism (meanness) depends on the extent of the positive (negative) externalities.

We propose that middle managers’ perceived organizational support enhances their performance through the sequential mediation of their behavioral integrity and follower organizational citizenship behaviors. We test our model with data collected from middle managers, their direct subordinates, and their direct superiors at 18 hotel properties in China. The current study’s findings contribute to the existing literature on perceived organizational support and behavioral integrity. They also add a practical self-interest argument for middle managers’ efforts to maintain their word-action alignment by demonstrating (...) that middle manager behavioral integrity positively affects middle managers’ own task performance ratings, both directly and via its positive effect on subordinates’ organizational citizenship behaviors. (shrink)

A computational modeling approach was used to test one possible explanation for the limited capacity of the subitizing phenomenon. Most existing models of this phenomenon associate the subitizing span with an assumed structural limitation of the human information processing system. In contrast, we show how this limit might emerge as the combinatorics of the space of enumeration problems interacts with the human cognitive architecture in the context of an enumeration task. Subitizing‐like behavior was generated in two different models of enumeration, (...) one based on the ACT‐R cognitive architecture and the other based on the principles of parallel distributed processing (PDP). Our results provide good qualitative fits to results obtained in a variety of empirical studies. (shrink)

In normative multi-agent systems, the question of “how an agent identifies norms in an open agent society” has not received much attention. This paper aims at addressing this question. To this end, this paper proposes an architecture for norm identification for an agent. The architecture is based on observation of interactions between agents. This architecture enables an autonomous agent to identify prohibition norms in a society using the prohibition norm identification (PNI) algorithm. The PNI algorithm uses association rule mining, a (...) data mining approach to identify sequences of events as candidate norms. When a norm changes, an agent using our architecture will be able to modify the norm and also remove a norm if it does not hold in the society. Using simulations of a park scenario we demonstrate how an agent makes use of the norm identification framework to identify prohibition norms. (shrink)

Purpose: The purpose of this paper is to provide a description of an innovative web-based ethics module that was designed to integrate ethics education across four accounting courses over two years (second and third year courses) in a large Australian tertiary institution. Approach: The approach taken in designing the ethics web-based module was to base the foundations of the module on Rest’s (1976) ethical behavior model with the adoption of a longitudinal approach to thecoverage of financial reporting ethical issues. Practical (...) Implications: The key objectives of the module are to improve students’ awareness and sensitivity to accounting ethics, and to foster student learning in an interesting and stimulating manner, leading to in-depth understanding of accounting ethics. Originality/value of paper: This paper provides a description of an original web-based approach to delivering ethics education to accounting students across four university courses. Its value lies in not only the innovative and interactive ethics education approach but also in providing feedback from students and the profession. (shrink)

Purpose: The purpose of this paper is to provide a description of an innovative web-based ethics module that was designed to integrate ethics education across four accounting courses over two years (second and third year courses) in a large Australian tertiary institution. Approach: The approach taken in designing the ethics web-based module was to base the foundations of the module on Rest’s (1976) ethical behavior model with the adoption of a longitudinal approach to thecoverage of financial reporting ethical issues. Practical (...) Implications: The key objectives of the module are to improve students’ awareness and sensitivity to accounting ethics, and to foster student learning in an interesting and stimulating manner, leading to in-depth understanding of accounting ethics. Originality/value of paper: This paper provides a description of an original web-based approach to delivering ethics education to accounting students across four university courses. Its value lies in not only the innovative and interactive ethics education approach but also in providing feedback from students and the profession. (shrink)

[español] En primer lugar, el texto ofrece un acercamiento al papel que amor y nostalgia cumplen en la poesía de Emilio Prados, así como a su íntimo nexo con la muerte como aniquilación mística. Como herramienta interpetativa, recurriré a la razón poética de María Zambrano, autora profundamente emparentada, vital y teóricamente, con la poesía pradiana. Este enfoque permitirá una visión de conjunto sobre la obra del poeta español y en segundo lugar, trazar una comparativa con el saudosismo de Teixeira de (...) Pascoaes. Así, indicaré las numerosas coincidencias que existen entre ambos y me detendré en la cuestión de la muerte mística, ámbito más problemático, donde sin embargo, puede apreciarse una comunión de espíritu entre el español y el portugués. ****************** [english] Firstly, the text offers an approach to the function of love and nostalgia in the poetry of Emilio Prados, as much as its intimate connection with death as mystical annihilation. As interpretive tool, I will use the poetic reason of María Zambrano, an author deeply linked, vital and theoretically, with pradian poetry. This focus will provide an overall view of Prado's work and the possibility of a comparison with Teixeira de Pascoaes's saudosism. Thus, I will point same coincidences between them and I will consider the question of mystical death. This sphere, although it is problematic, can show some kind of community of spirit between both. (shrink)

The non-identity problem arises when an intervention or behavior changes the identity of those affected. Delaying pregnancy is an example of such a behavior. The problem is whether and in what ways such changes in identity affect moral considerations. While a great deal has been written about the non-identity problem, relatively little has been written about the implications for physicians and how they should understand their duties. We argue that the non-identity problem can make a crucial moral difference in some (...) circumstances, and that it has some interesting implications for when it is or is not right for a physician to refuse to accede to a patient's request. If a physician is asked to provide an intervention (identity preserving) that makes a person worse off, then such harm provides a good reason for the physician to refuse to provide the intervention. However, in cases where different (identity-altering) interventions result in different people having a better or worse life, physicians should normally respect patient choice. (shrink)

ABSTRACT Issues concerning the putative perception/cognition divide are not only age-old, but also resurface in contemporary discussions in various forms. In this paper, I connect a relatively new debate concerning perceptual confidence to the perception/cognition divide. The term ‘perceptual confidence’ is quite common in the empirical literature, but there is an unsettled question about it, namely: are confidence assignments perceptual or post-perceptual? John Morrison in two recent papers puts forward the claim that confidence arises already at the level of perception. (...) In this paper, I first argue that Morrison’s case is unconvincing, and then develop one picture on perceptual precision with the notion of ‘matching profile’ and ‘supervaluation’ : 481–495.), highlighting the fact that this is a vagueness account, which is similar to but importantly different from indeterminacy accounts : 156–184.). With this model in hand, there can be rich resources with which to draw a theoretical line between perception and cognition. (shrink)

La infección por el virus del papiloma humano (VPH) constituye la causa necesaria, aunque no suficiente, de la enfermedad de transmisión sexual más frecuente en el mundo, responsable del 4,5 % de todos los cánceres en ambos sexos. La vacunación frente al VPH, con niveles de eficacia y seguridad similares en ambos sexos, está dirigida básicamente a mujeres, para reducir la incidencia de infección y sus consecuencias, como el cáncer de cérvix. La transmisibilidad del virus en ambos sexos y la (...) inmunidad colectiva que proporciona la vacunación universal hace que su extensión al sexo masculino constituya una cuestión no solo de salud pública, sino también un dilema bioético relacionado con la protección de la salud y la equitativa distribución de los recursos. Este trabajo aborda el análisis bioético de la extensión de la vacunación contra VPH a ambos sexos. (shrink)