La agricultura urbana permite la producción de alimentos, especialmente frutas, hortalizas y plantas aromáticas, contribuyendo a la reducción de la huella ecológica y al autoabastecimiento. La producción agrícola urbana es una tendencia mundial, en Colombia es una práctica para ayudar a mitigar la contaminación ambiental y reducir la compra de alimentos básicos, que por ejemplo hoy por hoy por temas de inflación sus costos han aumentado, reduciendo el número de los mismos en los hogares.

This article is a collective writing experiment undertaken by philosophers of education affiliated with the PESGB (Philosophy of Education Society of Great Britain). When asked to reflect on questions concerning the Philosophy of Education in a New Key in May 2020, it was unsurprising that the effects of the coronavirus pandemic on society and on education were foremost in our minds. We wanted to consider important philosophical and educational questions raised by the pandemic, while acknowledging that, first and foremost, it (...) is a human tragedy. With nearly a million deaths reported worldwide to date, and with everyone effected in one way or another by Covid-19, there is a degree of discomfort, and a responsibility to be sensitive, in reflecting and writing about it academically. Members of this ‘Covid Collective’ come from various countries, with perspectives from Great Britain and Ireland well represented, and we see academic practice as a globally connected enterprise, especially since the digital revolution in academic publishing. The concerns raised in this article relate to but move beyond Covid-19, reflecting the impact of neoliberalism [and other political developments] on geopolitics with educational concerns as central to our focus. (shrink)

Recent years have seen a concerted and systematic move towards a school-led system of initial teacher training in England. The role of universities, and particularly their part in engaging new teachers with educational theory, has been radically challenged. Only around half of new entrants to the profession now follow university-based training routes. These seismic changes to teacher education have been driven through with a minimum of formal consultation or public debate. In this urgent and compelling pamphlet, Janet Orchard and Christopher (...) Winch argue for a conception of teachers as professionals who require a deep understanding of the conceptual, empirical and normative dimensions of educational practice. They explain why university education departments are better placed than schools to help beginning teachers acquire that understanding. And they propose a significant expansion of initial teacher education, with full licensure contingent on completion of both a preliminary teaching qualification and a higher grade apprenticeship in the first two years of employment. Teachers need educational theory because they must understand what they are doing and why they are doing it, and must be able to think intelligently about how to do it better. At present, universities have the capacity and the expertise to meet this need. But they may not have it for much longer if the shift to school-based teacher education continues unabated. (shrink)

Teaching, irrespective of its geographical location, is fundamentally a relational practice in which unique ethically complex situations arise to which teachers need to respond at different levels of ethical decision-making. These range from ‘big’ abstract questions about whether or not what they teach is inherently good, through to seemingly trivial questions about everyday issues, for example whether or not it is right to silence children in classrooms. Hence, alongside a wide range of pedagogical skills, new teachers also need to develop (...) personal qualities, knowledge and understanding that will enable them to navigate successfully these professional ethical demands. ‘Philosophy for Teachers’, or ‘P4T’, is one promising approach to teachers’ pre-service professional preparation which has been piloted in England, adapted from the more familiar idea of ‘P4C’. Drawing on the model of learning through dialogue within a community of fellow enquirers, an ethical retreat was s... (shrink)

The past twenty-five years have seen an explosion of interest in nationalism and nationality in the social sciences - the past ten also in cultural studies. These two disciplinary areas define their objects of study differently, but both have recently started to converge in the pervasive use of the term `national identity', which in turn relies on the term `cultural identity'. Although theoretical complications entailed by the use of `identity' as a concept have been noted, the theorization of identity as (...) culture has occurred almost by default, with the term `culture' merely designating what needs to be explained, and the inherent circularity of `cultural identity' as a category remaining unaddressed. The two approaches differ in their understanding of the crucial categories of `culture' and `politics' in their accounts of nation and national identity. Cultural studies accounts focus on politics in terms of cultural politics, and thus fail to take on board important aspects of the social science accounts which they take as standard reference points. Both approaches ultimately rely upon `culture' as an all-inclusive category of social subjectivity, which remains undertheorized in both approaches, albeit in significantly contrasting ways. The place of culture in recent work on European identity functions differently, and provides a useful counterpoint to these difficulties. (shrink)

Michael Peters, Sonja Arndt & Marek TesarThis is a collective writing experiment of PESA members, including its Executive Committee, asking questions of the Philosophy of Education in a New Key. Co...

David Carr, 2003, London, RoutledgeFalmer. Pp. xiii + 294. Hbk. £60.00 and Pbk £18.99.

Conceptions of teaching quality and teacher accountability, and the values and assumptions that underpin them, are relatively under-examined by policy makers. We suggest ways in which philosophers might address this deficit, with reference to policy concerns found in the United Kingdom (UK). Further philosophical questions are generated by this process of reflection and we offer a partial analysis of those we judge to be of particular significance. While optimistic generally, we identify three challenges to asserting a role for philosophical analysis (...) in policy, practice and research concerned with teacher education, and urge philosophers of education to engage in constructive dialogue with other critical and reflective thinkers in the field of education. (shrink)

Conventional teacher education programmes do not equip practitioners adequately to navigate ethically complex situations that arise in teaching. One initiative responding to this deficit is ‘Philosophy for Teachers’ (‘P4T’), a 24-hour residential approach to community philosophy. Piloted originally in England, a further workshop took place in South Africa in October 2017, comprising student teachers, teacher educators and philosophers from three historically different universities in the Western Cape. Significant new insights to emerge included greater clarity on the respective contributions of P4T (...) and other initiatives already applying ‘P4C’ to address professional ethics within teacher education. In particular, P4T re-framed within this new context can be seen to create shared space for reflection on teacher identity and the complexity of difference and ‘otherness’ in classroom practice. (shrink)

David Carr, 2003, London, RoutledgeFalmer. Pp. xiii + 294. Hbk. £60.00 and Pbk £18.99.

Throughout the biological and biomedical sciences there is a growing need for, prescriptive ‘minimum information’ (MI) checklists specifying the key information to include when reporting experimental results are beginning to find favor with experimentalists, analysts, publishers and funders alike. Such checklists aim to ensure that methods, data, analyses and results are described to a level sufficient to support the unambiguous interpretation, sophisticated search, reanalysis and experimental corroboration and reuse of data sets, facilitating the extraction of maximum value from data sets (...) them. However, such ‘minimum information’ MI checklists are usually developed independently by groups working within representatives of particular biologically- or technologically-delineated domains. Consequently, an overview of the full range of checklists can be difficult to establish without intensive searching, and even tracking thetheir individual evolution of single checklists may be a non-trivial exercise. Checklists are also inevitably partially redundant when measured one against another, and where they overlap is far from straightforward. Furthermore, conflicts in scope and arbitrary decisions on wording and sub-structuring make integration difficult. This presents inhibit their use in combination. Overall, these issues present significant difficulties for the users of checklists, especially those in areas such as systems biology, who routinely combine information from multiple biological domains and technology platforms. To address all of the above, we present MIBBI (Minimum Information for Biological and Biomedical Investigations); a web-based communal resource for such checklists, designed to act as a ‘one-stop shop’ for those exploring the range of extant checklist projects, and to foster collaborative, integrative development and ultimately promote gradual integration of checklists. (shrink)

The theme of the third annual Spring workshop of the HUPO-PSI was proteomics and beyond and its underlying goal was to reach beyond the boundaries of the proteomics community to interact with groups working on the similar issues of developing interchange standards and minimal reporting requirements. Significant developments in many of the HUPO-PSI XML interchange formats, minimal reporting requirements and accompanying controlled vocabularies were reported, with many of these now feeding into the broader efforts of the Functional Genomics Experiment data (...) model and Functional Genomics Ontology ontologies. (shrink)

Conceptions of teaching quality and teacher accountability, and the values and assumptions that underpin them, are relatively under‐examined by policy makers. We suggest ways in which philosophers might address this deficit, with reference to policy concerns found in the United Kingdom (UK). Further philosophical questions are generated by this process of reflection and we offer a partial analysis of those we judge to be of particular significance. While optimistic generally, we identify three challenges to asserting a role for philosophical analysis (...) in policy, practice and research concerned with teacher education, and urge philosophers of education to engage in constructive dialogue with other critical and reflective thinkers in the field of education. (shrink)

Sonja Arndt, Michael Peters, Marek Tesar Introspection is a key concept in epistemology, since introspective knowledge is often thought to be particularly secure, maybe even immune to skeptical dou...

Guilt and shame are self-conscious emotions with implications for mental health, social and occupational functioning, and the effectiveness of sports practice. To date, the assessment and role of athlete-specific guilt and shame has been under-researched. Reporting data from 174 junior elite cricketers, the present study utilized exploratory factor analysis in validating the Athletic Perceptions of Performance Scale, assessing three distinct and statistically reliable factors: athletic shame-proneness, guilt-proneness, and no-concern. Conditional process analysis indicated that APPS shame-proneness mediated the relationship between general (...) and athlete-specific distress. While APPS domains of guilt-proneness and no-concern were not significant mediators, they exhibited correlations in the expected direction with indices of psychological distress and well-being. The APPS may assist coaches and support staff identify players who may benefit from targeted interventions to reduce the likelihood of experiencing shame-prone states. (shrink)

Abolitionism is the view that if no one is responsible, we ought to abandon the reactive attitudes. This paper defends abolitionism against the claim, made by P.F. Strawson and others, that abandoning these attitudes precludes the formation and maintenance of valuable personal relationships. These anti-abolitionists claim that one who abandons the reactive attitudes is unable to take personally others’ attitudes and actions regarding her, and that taking personally is necessary for certain valuable relationships. I dispute both claims and argue that (...) this objection exaggerates the role of the reactive attitudes and underestimates the importance of non-reactive moral emotions. (shrink)

Reactivity, or the phenomenon by which subjects tend to modify their behavior in virtue of their being studied upon, is often cited as one of the most important difficulties involved in social scientific experiments, and yet, there is to date a persistent conceptual muddle when dealing with the many dimensions of reactivity. This paper offers a conceptual framework for reactivity that draws on an interventionist approach to causality. The framework allows us to offer an unambiguous definition of reactivity and distinguishes (...) it from placebo effects. Further, it allows us to distinguish between benign and malignant forms of the phenomenon, depending on whether reactivity constitutes a danger to the validity of the causal inferences drawn from experimental data. (shrink)

This paper argues for a new understanding of Strawson’s distinction between personal, impersonal, and self-reactive attitudes. Many Strawsonians take these basic reactive attitude types to be distinguished by two factors. Is it the self or another who is treated with good- or ill-will? And is it the self or another who displays good- or ill-will? On this picture, when someone else wrongs me, my reactive attitude is personal; when someone else wrongs someone else, my reactive attitude is impersonal; and when (...) I wrong someone else, my attitude is self-reactive. Against this account, I argue that the basic reactive attitude types are better distinguished according to whether they express partial or impartial concern. This fits Strawson’s discussion in “Freedom and Resentment”, and it allows us to see an important point that the alternative approach obscures. Namely, while attitudes like resentment, gratitude, shame, and pride can arise as responses to our own treatment and behavior, they can also arise as third-party responses to the treatment and behavior of our family members, romantic partners, and close friends. Similarly, attitudes like moral indignation and disapprobation also have a wider scope than is often acknowledged; they can arise as responses to others’ treatment, but they can also arise as responses to our own treatment when we react impartially to circumstances involving ourselves. (shrink)

The reactions that science triggers on the people it studies, describes, or theorises about, can affect the science itself and its claims to knowledge. This phenomenon, which we call reactivity, has been discussed in many different areas of the social sciences and the philosophy of science, falling under different rubrics such as the Hawthorne effect, self-fulfilling prophecies, the looping effects of human kinds, the performativity of models, observer effects, experimenter effects and experimenter demand effects. In this paper we review state-of-the-art (...) research that falls under the remit of the philosophy of reactivity by considering ontological, epistemic and moral issues that reactivity raises. Along the way, we devote special attention to articles belonging to this journal's Topical Collection entitled “Reactivity in the Human Sciences”. (shrink)

The aim of this conceptual paper is to discuss the issue of managing fake news in the online environment, from an organizational perspective, by using reactive PR strategies. First, we critically discuss the most important definitions of the umbrella term fake news, in the so-called post-truth era, in order to emphasize different challenges in conceptualizing this elusive social phenomenon. Second, employing some valuable contribution from literature, we present and illustrate with vivid examples 10 categories of fake news. Each type of (...) fake news is discussed in the context of organizational communication. Based on existent literature, we propose a 3D conceptual model of fake news, in an organizational context. Furthermore, we consider that PR managers can use either reactive PR strategies to counteract online fake news regarding an organization, or communication stratagems to temporarily transform the organization served into a potential source of fake news. The existing typology of reactive public relations strategies from the literature allow us to discuss the challenge of using them in counteracting online fake news. Each reactive PR strategy can be a potential solution to respond to different types of online fake news. Although these possibilities seem to be extensive, in some cases, PR managers can find them ineffective. In our view, this cluster of reactive PR strategies is not a panacea for managing fake news in the online environment and different strategic approaches may be need, such as communication stratagems. In this context, communication stratagems consist in using organization as a source or as a vector for strategic creation and dissemination of online fake news, for the benefit of the organization. We conclude that within online environment PR managers can employ a variety of reactive PR strategies to counteract fake news, or different communication stratagems to achieve organizational goals. (shrink)

The attitudes P. F. Strawson dubs reactive are felt toward another (or oneself). They are thus at least in part affective reactions to what Strawson describes as qualities of will that people manifest toward others and themselves. The reactive attitudes are also interpersonal, relating persons to persons. But how do they relate persons? On the deontic, imperative view, they relate persons in second-personal authority and accountability relations. After addressing how best to understand the reactive attitudes as sentiments, I evaluate the (...) deontic imperative view. I argue that the modality of reactive attitudes is not invariably deontic nor is their mood invariably imperative. Certain reactive attitudes are aretaic, appellative sentiments that prescribe non-jural ideals of conduct or character. Although expansive, my resulting conception of the reactive attitudes escapes the charge of failing to distinguish reactive sentiments from “disengaged aesthetic reactions” to the beautiful and ugly in human action and character. (shrink)

The debate surrounding the issue of collective moral responsibility is often steeped in metaphysical issues of agency and personhood. I suggest that we can approach the metaphysical problems surrounding the issue of collective responsibility in a roundabout manner. My approach is reminiscent of that taken by P.F. Strawson in "Freedom and Resentment" (1968). Strawson argues that the participant reactive attitudes - attitudes like resentment, gratitude, forgiveness and so on - provide the justification for holding individuals morally responsible. I argue that (...) the framework of the reactive attitudes extends to collectives and provides the justification for holding collectives morally responsible. (shrink)

The debate surrounding the issue of collective moral responsibility is often steeped in metaphysical issues of agency and personhood. I suggest that we can approach the metaphysical problems surrounding the issue of collective responsibility in a roundabout manner. My approach is reminiscent of that taken by P.F. Strawson in “Freedom and Resentment” (1968). Strawson argues that the participant reactive attitudes – attitudes like resentment, gratitude, forgiveness and so on – provide the justification for holding individuals morally responsible. I argue that (...) the framework of the reactive attitudes extends to collectives and provides the justification for holding collectives morally responsible. (shrink)

This article focuses on academics’ conceptions of teaching research ethics and integrity. Seventeen academics from a Finnish research intensive university participated in this qualitative study. The data were collected using a qualitative multi-method approach, including think-aloud and interview data. The material was scrutinized using thematic analysis, with both deductive and inductive approaches. The results revealed variation in academics’ views on the responsibility for teaching research integrity, the methods employed to teach it and the necessity of intervening when misconduct occurs. The (...) academics emphasized the responsibility of the individual teacher and the student to foster integrity as well as the shared responsibility of all members of the academic community. However, many academics felt that they themselves needed pedagogical training. Most shared the view that practices of responsible conduct in research can be explicitly and intentionally taught through demonstration, explanation, and practice. However, the academics also noted that learning research integrity and ethics takes place implicitly. A few questioned the need for and the utility of training in the form of courses or through an explicitly addressed topic included in, for instance, methods courses. Their views on the question of how to deal with alleged cases of misconduct varied. While many academics considered a proactive approach the best way to prevent misconduct, some trusted more in a reactive approach. The results show that, while in general academics agree on the importance of research ethics, their conceptions of teaching it vary. The teaching conception bears consequences for the teaching methods chosen, assignment of responsibility for both teaching and students learning, and for the way in which teachers believe that misconduct should be responded to. (shrink)

Reactivity is usually seen as a problem in the human sciences. In this paper I argue that in emancipatory activist research, reactivity can be an important tool. I discuss one example: the aim of mental decolonisation in indigenous activist research. I argue that mental decolonisation can be understood as the act of replacing harmful looping effects with new, emancipatory ones.

A series of recent debates in experimental economics have associated demand effects with the artificiality of the experimental setting and have linked it to the problem of external validity. In this paper, we argue that these associations can be misleading, partly because of the ambiguity with which “artificiality” has been defined, but also because demand effects and external validity are related in complex ways. We argue that artificiality may be directly as well as inversely correlated with demand effects. We also (...) distinguish between the demand effects of experimentation and the reactions that they may trigger and that might endanger experimental validity. We conclude that economists should pay more attention to the way in which subjects construe the experimental task and learn to exploit subjects’ reactivity to expectations in their experiments. (shrink)

P.F. Strawson famously suggested that employment of the objective attitude in an intimate relationship forebodes the relationship’s demise. Relatively less remarked is Strawson's admission that the objective attitude is available as a refuge from the strains of relating to normal, mature adults as proper subjects of the reactive attitudes. I develop an account of the strategic employment of the objective attitude in such cases according to which it denies a person a power of will – authorial power – whose recognition (...) is necessary for sustaining intimacy. This conception of the objective attitude in its strategic employment presses those who urge universal adoption of the objective attitude (perhaps in its nonreactive, emotionally toned species) to confront the costs of their proposal. (shrink)

Bernard Williams charges that the moral psychology built into R. M. Hare’s utilitarianism is incoherent in virtue of demanding a bifurcated kind of moral thinking that is possible only for agents who fail to reflect properly on their own practical decision making. I mount a qualified defence of Hare’s view by drawing on the account of the ‘reactive attitudes’ found in P. F. Strawson’s ‘Freedom and Resentment’. Against Williams, I argue that the ‘resilience’ of the reactive attitudes ensures that our (...) taking an instrumental view of our dispositions to experience guilt and compunction, as Hare calls for us to do while engaged in ‘critical’ moral thinking, will not prevent us from experiencing these feelings as people ordinarily do while we are thinking ‘intuitively’. I also consider the implications of my argument for consequentialism more generally and (briefly) Kantianism. (shrink)

I argue that psychopathy undermines three common assumptions typically invoked in favor of moderate reasons responsive theories of moral responsibility. First, I propose a theory of psychopathic agency and claim that psychopathic agency suggests that the systems underlying receptivity to reason bifurcate into at least two sub-systems of receptivity. Next, I claim that the bifurcation of systems for receptivity suggests that reactivity is not “all of a piece” but that it too decomposes into at least two subsystems. Lastly, I argue (...) that prior attempts by Fischer and Ravizza to address these concerns contain an appeal to internalism. Since Fischer and Ravizza want their theory to remain agnostic about the nature of reasons for action, this appeal to internalism is problematic for their view. I close by suggesting that if we are to make sense of when and why psychopaths are responsible then a mechanism-based theory of responsibility must be able to explain how different systems of receptivity and reactivity come together to constitute a single mechanism that grounds responsibility ascriptions for action and they must do so without tacitly appealing to implausible forms of internalism about reasons for action. (shrink)

Reactivity in qualitative data collection occurs when a researcher generates data about a situation with reactivity, that is, a situation in which the ongoing research affects the research participants such that they, say, diverge from their routines when the researcher is present, or tell the researcher what they think she wants to hear. In qualitative research, there are two basic approaches to reactivity. The traditional position maintains that data should ideally be collected in situations without any reactivity. In other words, (...) good data are reactivity free. By contrast, the more recent view holds that data from situations with reactivity are fine as long as the researcher is aware of the occurring reactivity so that she can take it into account when interpreting her data. In this fashion, good data are reactivity transparent. In this paper, I first spell out and defend the more recent approach to reactivity. I argue that qualitative data are reactivity transparent when conjoined with true reactivity assumptions and that, thus supplemented, data are informative about social life independently of its being studied. Next, I examine various issues raised by the requirement to put forth true reactivity assumptions. Lastly, I use my discussion of reactivity transparency as a basis for providing a framework for thinking about good qualitative data. (shrink)

Many theorists claim that the reactive emotions, even in their private form, are communicative entities. But as widely endorsed as this claim is, it has not been redeemed: the literature lacks a clear and compelling account of the sense in which reactive attitudes qua private mental states are essentially communicative. In this paper, I fill this gap. I propose that it is apt to characterize privately held reactive attitudes as communicative in nature because they, like many paradigmatic forms of communication, (...) have representational content and the function of evoking uptake of this content in a recipient. (shrink)

Evaluative theories of emotions purport to shed light on the nature of emotions by appealing to values. Three kinds of evaluative theories of emotions dominate the recent literature: the judgment theory equates emotions with value judgments; the perceptual theory equates emotions with perceptions of values, and the attitudinal theory equates emotions with evaluative attitudes. This paper defends a fourth kind of evaluative theory of emotions, mostly neglected so far: the reactive theory. Reactive theories claim that emotions are attitudes which arise (...) in reaction to perceptions of value. (shrink)

There are many important methodological decisions that need to be made when examining emotional reactivity in psychopathology. In the present study, we examined the effects of two such decisions in an investigation of emotional reactivity in depression: (1) which (if any) comparison condition to employ; and (2) how to define change. Depressed (N = 69) and control (N = 37) participants viewed emotion-inducing film clips while subjective and facial responses were measured. Emotional reactivity was defined using no comparison condition (i.e., (...) raw scores), baseline comparison condition (i.e., no stimulus presented), and neutral comparison condition (i.e., neutral stimulus presented). Change in emotional reactivity was assessed using four analytic approaches: difference scores, percentage change, residualised change, and ANCOVA. Results differed among the three comparison conditions and among several of the analytic approaches. Overall, our investigation suggests that choosing a comparison condition and the definition of change can significantly influence the presence of group differences in emotional reactivity. Recommendations for studies of emotional reactivity in psychopathology are discussed. (shrink)

P. F. Strawson famously gives pride of place to the reactive attitudes in his account of moral responsibility, though he says little about guilt or any other self-reactive attitudes. This inattention is curious, given that on his view lacking capacity for self-reactive attitudes is grounds for exemption from the moral community. Perhaps because of Strawson’s limited remarks regarding them, the self-reactive attitudes have not received much attention in commentaries on his view. In this paper, I will attempt to fill this (...) lacuna by examining the role of the self-reactive attitudes within his approach to moral responsibility. I will focus in particular on reactive guilt to show that it plays a number of roles in our interpersonal lives, from reinforcing our important personal relationships to holding ourselves accountable with respect to our own personal ideals. A better understanding of these roles, I will argue, helps to clarify Strawson’s notion of reactive attitude and to strengthen his overall argument, in addition to revealing some interesting aspects of the way various self-reactive attitudes operate within our lives. (shrink)

The discovery of a stable latent reservoir for HIV‐1 in resting memory CD4+ T cells provides a mechanism for lifelong persistence of HIV‐1. The long‐lived latently infected cells persist in spite of prolonged highly active antiretroviral therapy and present a major barrier to a cure of HIV‐1 infection. In this review, we discuss the current understanding of HIV‐1 persistence and latent viral infection in the context of effective antiretroviral therapy and the recent progress in purging latent viral reservoirs. Recent studies (...) demonstrate that reactivation of latent HIV‐1 is a promising strategy for the depletion of these viral reservoirs. A thorough evaluation of the anti‐latency activity of drug candidates should include the measurement of changes in intracellular viral RNA, plasma virus levels, and the size of latent viral reservoirs, as well as potential adverse effects. Currently, there are several technical barriers to the evaluation of anti‐latency drugs in vivo. We also discuss these challenging issues that remain unresolved. (shrink)

We contrast reactive and endogenously active perspectives on brain activity. Both have been pursued continuously in neurophysiology laboratories since the early 20thcentury, but the endogenous perspective has received relatively little attention until recently. One of the many successes of the reactive perspective was the identification, in the second half of the 20th century, of the distinctive contributions of different brain regions involved in visual processing. The recent prominence of the endogenous perspective is due to new findings of ongoing oscillatory activity (...) in the brain at a wide range of time scales, exploiting such techniques as single-cell recording, EEG, and fMRI. We recount some of the evidence pointing to ways in which this endogenous activity is relevant to cognition and behavior. Our major objective is to consider certain implications of the contrast between the reactive and endogenous perspectives. In particular, we relate these perspectives to two different characterizations of explanation in the new mechanistic philosophy of science. In a basic mechanistic explanation, the operations of a mechanism are characterized qualitatively and as functioning sequentially until a terminating condition is realized. In contrast, a dynamic mechanistic explanation allows for non-sequential organization and emphasizes quantitative modeling of the mechanisms's behavior. For example, with appropriate parameter values a set of differential equations can be used to demonstrate ongoing oscillations in a system organized with feedback loops. We conclude that the basic conception of mechanistic explanation is adequate for reactive accounts of brain activity, but dynamical accounts are required to explain sustained, endogenous activity. (shrink)

Previous research on reactivity—defined as changing organizational behaviour to better conform to the criteria of measurement in response to being measured—has found significant variation in company responses toward sustainability metrics. We propose that reactivity is driven by dialogue, motivation, and capacity in a configurational way. Empirically, we use fuzzy set qualitative comparative analysis to analyze company responses to the sustainability index FTSE4Good. We find evidence of complementary and substitute effects between motivation and capacity. Based on these effects, we develop a (...) typology of reactivity to sustainability metrics, which also theorizes the use of metrics as tools for performance feedback and the building of calculative capacity. We show that when reactivity is studied configurationally, we can identify previously underacknowledged types of responses. We discuss the theoretical and practical implications for studying and using sustainability metrics as governance tools for responsible behaviour. (shrink)

Therapeutic reactivity among psychology trainees was ascertained by their response to 10 clinical vignettes depicting clients with HIV who are sexually active with uninformed partners. This construct accounts for the relative change in decisions to maintain the confidentiality of clients who acknowledge safe versus unsafe sexual behavior. As anticipated, an analysis of variance revealed a significant main effect for safety and a significant 3-way interaction. Subsequent analyses revealed that trainees exhibit the highest level of therapeutic reactivity toward heterosexual male clients, (...) and the lowest reactive stance toward heterosexual female clients. Although the decisional pattern evidenced toward heterosexuals seems congruent with epidemiological estimates of risk, the decisions toward lesbians and gay males appear more likely a function of bias. The ethical implications of these findings are discussed. (shrink)

As a result of being measured, individuals sometimes alter their behavior and attitudes to such extent that subsequent measurement results are affected. This ‘reactivity’ to measurement problematizes prediction and explanation, but some reactivity is nevertheless legitimate. Using the example of the measurement of race in the US Census, this article demonstrates that some forms of reactivity do not affect the accuracy of research. The article argues that legitimacy of reactivity depends on the metaphysical status of the phenomenon being measured. It (...) is argued that reactivity’s legitimacy is affected by the arbitrariness of a measure and the voluntariness of measurement results. (shrink)

Abolitionism is the view that if no one is responsible, then we ought to abandon the reactive attitudes. Proponents suggest that reactive attitudes can be replaced in our emotional repertoire by non-reactive analogues. In this paper, I dispute and reject a common challenge to abolitionism according to which the reactive attitudes are necessary for protesting unfairness and maintaining social harmony. While other abolitionists dispute the empirical basis of this objection, I focus on its implications. I argue that even if non-reactive (...) analogues cannot perform the interpersonal and social functions of reactive attitudes, it does not follow that the losses of abandoning them outweigh the gains of retaining them. The force of the challenge rests on a mistake, identified by John Stuart Mill among others, that is common when evaluating entrenched social practices. (shrink)

Reactive oxygen species (ROS) are known as toxic metabolic products in plants and other aerobic organisms. An elaborate and highly redundant plant ROS network, composed of antioxidant enzymes, antioxidants and ROS-producing enzymes, is responsible for maintaining ROS levels under tight control. This allows ROS to serve as signaling molecules that coordinate an astonishing range of diverse plant processes. The specificity of the biological response to ROS depends on the chemical identity of ROS, intensity of the signal, sites of production, plant (...) developmental stage, previous stresses encountered and interactions with other signaling molecules such as nitric oxide, lipid messengers and plant hormones. Although many components of the ROS signaling network have recently been identified, the challenge remains to understand how ROS-derived signals are integrated to eventually regulate such biological processes as plant growth, development, stress adaptation and programmed cell death. (shrink)