Does A cause B simply if A prevents what would have prevented B? Such a case is known as double prevention: where we have the prevention of a prevention. One theory of causation is that A causes B when B counterfactually depends on A and, as there is such a dependence, proponents of the view must rule that double prevention is causation.<br><br>However, if double prevention is causation, it means that causation can be (...) an extrinsic matter, that the cause and effect need not be connected by a continuous chain of events, that there can be causation by absence, and that there can be causation at a distance. All of these implications jar with strong intuitions we have about the nature of causation. There is, on the other hand, a theory of causation based on an ontology of real dispositions, where causation involves the passing around of powers. This theory in contrast entails that double prevention is not causation and, on this issue, it can claim a victory over the counterfactual dependence account. (shrink)

Mike accidentally knocked against a bottle. Seeing that the bottle was about to fall, Jack was just about to catch it when Peter accidentally knocked against him, making Jack unable to catch it. Jack did not grab the bottle, and it fell to the ground and spilled. In double-prevention cases like these, philosophers and nonphilosophers alike tend to judge that Mike knocking into the bottle caused the beer to spill and that Peter knocking into Jack did not cause (...) the beer to spill. This difference in causal judgment is a difficult puzzle for counterfactual theories of causal judgment; if each event had not happened, the outcome would not have, yet there is a difference in people’s causal judgments. In four experiments and three supplemental experiments, we confirm this difference in causal judgments. We also show that differences in people’s counterfactual thinking can explain this difference in their causal judgments and that recent counterfactual models of causal judgment can account for these patterns. We discuss these results in relation to work on counterfactual thinking and causal modeling. (shrink)

S. C. Gibb holds that some mental events enable physical events to take place by acting as ‘double preventers’ which prevent other mental events from effecting change in the physical domain. She argues that this enables a dualist account of psychophysical interaction consistent with the causal relevance of mental events, their distinctness from physical events, the causal closure of the physical and the exclusion of systematic overdetermination. While accepting the causal powers metaphysic, this paper argues that: Closure is maintained (...) only on the assumption of an implausible pre-ordained harmony between preventing and double-preventing mental events. Distinctness is preserved only at the cost of positing brute unexplained powers of mental and physical events to causally interact with each other. Exclusion is systematically violated in a substantial number of everyday cases. The case for Relevance made by the Double Prevention model is accordingly too weak to sustain a dualist approach to mental causation. (shrink)

Some have argued that no analysis of counterfactual conditionals can succeed without appealing to causal notions. Such authors claim that, in determining what would transpire had some events gone differently, we hold fixed everything that is causally independent from those events. Call this view Causal Independence. Some have argued that we need Causal Independence to accommodate intuitive judgments about certain kinds of counterfactuals in indeterministic worlds. The aim of this paper is to show that, contra these authors, Causal Independence systematically (...) delivers counterintuitive results for a certain subset of such counterfactuals-namely, those involving causation by double prevention. I conclude that intuitions about such counterfactuals do not motivate Causal Independence, at least in any form in which it has thus far been articulated. However, I suggest that a refined Causal Independence thesis that presupposes a kind of causal pluralism might be able to accommodate these intuitions, though such a refined version of Causal Independence may not conflict with reductive analyses of causal notions that appeal to counterfactuals after all. (shrink)

In this paper we discuss Ned Hall's critique of David Lewis's counterfactual theory of causation, in particular for its alleged inability to account for cases of double prevention. To do so, we focus on Pablo Melogno's response to Hall, where he claims that Hall's proposed tension between the concept of dependence and the locality thesis in cases of double prevention is the effect of the omission of essential details to complete the causal chain in the examples (...) used by Hall. Here we propose to take a further step in the defense of the counterfactual theory begun by Melogno, by reviewing the examples proposed by Hall, the modifications complexified by Melogno and the corollaries that follow from them, and proposing some relevant conceptual extensions to the ideas of the three authors. (shrink)

Is double prevention causation? Some say yes and some say no, but the answer is yes and no. Interrupting double prevention, where A prevents B from continuing to prevent something, is causation, while blocking double prevention, where A intervenes before B has begun preventing anything, is not. I present two arguments for this thesis. First, it sorts canonical examples of double prevention correctly. Second, well-known theoretical arguments that double prevention is (...) not causation only show that blocking double prevention is not causation. (shrink)

The problem of free will is deeply linked with the causal relevance of mental events. The causal exclusion argument claims that, in order to be causally relevant, mental events must be identical to physical events. However, Gibb has recently criticized it, suggesting that mental events are causally relevant as double preventers. For Gibb, mental events enable physical effects to take place by preventing other mental events from preventing a behaviour to take place. The role of mental double preventers (...) is hence similar to what Libet names free won’t, namely the ability to veto an action initiated unconsciously by the brain. In this paper I will propose an argument against Gibb’s account, the causal irrelevance argument, showing that Gibb’s proposal does not overcome the objection of systematic overdetermination of causal relevance, because mental double preventers systematically overdetermine physical double preventers, and therefore mental events are causally irrelevant. (shrink)

We examine Sophie Gibb’s emergent property-dualist theory of mental causation as double-prevention. Her account builds on a commitment to a version of causal realism based on a powers metaphysic. We consider three objections to her account. We show, by drawing out the implications of the ontological commitments of Gibb’s theory of mental causation, that the first two objections fail. But, we argue, owing to worries about cases where there is no double-preventive role to be played by mental (...) properties, her account, which solely affords mental properties a double-preventive role, is incomplete and vulnerable to a causal exclusion objection. We propose a friendly modification to her theory of mental causation that is consistent with her theory’s ontological commitments. Specifically, we sketch an account on which mental properties have a more pronounced causal-structuring role that is not exhausted by the role Gibb assigns them as double-preventers. The result is a novel emergentist theory of mental causation. (shrink)

In response to the continued expansion of “red flag” laws allowing broader classes of people to petition a court for the removal of firearms from individuals who exhibit dangerous conduct, this paper argues that state laws should adopt a double-filter provision that balances individual rights and government public safety interests. The main component of such a provision is a special statutory category — “reporting party” — that enables a broader social network, such as co-workers or school administrators, to request (...) that a law enforcement officer file a petition for an Extreme Risk Protection Order. A double-filter provision would not give reporting parties a right to file a court petition directly. Instead, parties would file a request for petition with law enforcement officers, who must seek an ERPO from the court if they find the reporting party's information credible. That information is then transmitted to the court as a sworn affidavit of the reporting party. The goal is to facilitate a balanced policy model that widens the reporting circle in order to feed more potentially life-saving information into the system, mitigates the risk of erroneous deprivation of constitutionally protected due process and Second Amendment rights. (shrink)

I shall present in this article a double negation account of the distinction between causes and background conditions. Such an account will be based on the idea that, unlike causes, background conditions allow for certain effects by way of double prevention. In Section 1 I shall introduce objective and non-objective theories of the causes-background conditions distinction and I shall discuss and reject some non-objective theories. In Section 2 I shall examine some existing objective theories and argue that (...) they need to be supplemented in two relevant respects. In Section 3 I shall present my double negation account. Background conditions will be taken to allow for their effects by acting as early double preventers, late double preventers or effect double preventers. In Section 4 I shall deal with two main problems, i.e., the possibility of interpreting background conditions as purely indirect causes and the introduction of negative entities in my account, and with further issues. (shrink)

Ethics dumping is the practice of undertaking research in a low- or middle-income setting which would not be permitted, or would be severely restricted, in a high-income setting. Whilst Kenya operates a sophisticated research governance system, resource constraints and the relatively low number of accredited research ethics committees limit the capacity for ensuring ethical compliance. As a result, Kenya has been experiencing cases of ethics dumping. This article presents 11 challenges in the context of preventing ethics dumping in Kenya, namely (...) variations in governance standards, resistance to double ethics review, resource constraints, unresolved issues in the management of biological samples, unresolved issues in the management of primary data, unsuitable informed consent procedures, cultural insensitivity, differing standards of care, reluctance to provide feedback to research communities, power differentials which facilitate the exploitation of local researchers and lack of local relevance and/or affordability of the resultant products. A reflective approach for researchers, built around the values of fairness, respect, care and honesty, is presented as a means of taking shared responsibility for preventing ethics dumping. (shrink)

In The Souls of Black Folk, W.E.B. Du Bois introduces double consciousness as a result of racial prejudice and oppression. Explained as a state of confliction felt by black Americans, Du Bois presents double consciousness as integral to understanding the black experience. Later philosophers question the importance of double consciousness to current race discussions, but this paper contends that double consciousness provides valuable insights into black and white relations. To do this, I will utilize the modern (...) slang term, “Oreo,” to highlight how a perceived incompatibility between blacks and whites could prevent America from achieving a greater unity. (shrink)

In The Souls of Black Folk, W.E.B. Du Bois introduces double consciousness as a result of racial prejudice and oppression. Explained as a state of confliction felt by black Americans, Du Bois presents double consciousness as integral to understanding the black experience. Later philosophers question the importance of double consciousness to current race discussions, but this paper contends that double consciousness provides valuable insights into black and white relations. To do this, I will utilize the modern (...) slang term, “Oreo,” to highlight how a perceived incompatibility between blacks and whites could prevent America from achieving a greater unity. (shrink)

Do hard budget constraints work in favour or against truth telling in double auctions? McAfee constructed a simple double auction mechanism, which is strategyproof and minimally inefficient, but may resort to dual prices, where the difference between prices is channelled as a surplus to the market maker, preventing MDA from achieving a balanced budget. We construct a variant of MDA in which no-loss constraints play a major positive role. Our variant of MDA is also strategyproof, as efficient as (...) MDA but improves on it by achieving a balanced budget via always having a uniform price. (shrink)

Just war doctrine includes a stringent prohibition against killing and otherwise harming 'innocents', those of one's enemy population who are not engaged in the act of making war. This category includes most enemy civilians. The prohibition cannot reasonably prohibit all possible harms to these innocents. The doctrine of double effect is a way of limiting the prohibition to acts of intentionally harming innocents. This paper explores the application of double effect reasoning in this context, with a view towards (...) determining whether it contains resources to prevent rationalizing and mistaken applications. I argue that, although there are hard cases, the doctrine can be applied rigorously so as to expose rationalizing applications and mistakes. (shrink)

ABSTRACT There is a popular way of appealing to consistency of judgment or principle whose result is to rule out relevant information. To avoid the danger of judging similar cases differently, relevantly different cases are treated alike. So the information distinguishing them is lost. I try to formulate, defend and apply a requirement upon determining whether situations are similar with respect to a principle. Adherence to the requirement is a way to prevent the loss of information through illicit appeals to (...) consistency. Part II examines a difficulty for the requirement proposed. The difficulty concerns determinateness: given the requirement's broad scope, it cannot yield judgments on specific cases without prejudging substantive issues. Without reaching any solution to the difficulty, I point out that parallel difficulties arise for similar requirements in diverse areas, and that the problem can be mitigated to varying degrees in actual applications of these requirements. (shrink)

Combined oral contraceptives have been demonstrated to have significant benefits for the treatment and prevention of disease. These medications also are associated with untoward health effects, and they may be directly contraceptive. Prescribers and users must compare and weigh the intended beneficial health effects against foreseeable but unintended possible adverse effects in their decisions to prescribe and use. Additionally, those who intend to abide by Catholic teachings must consider prohibitions against contraception. Ethical judgments concerning both health benefits and contraception (...) are approached in this essay through an overview of the therapeutic, prophylactic, untoward, and contraceptive effects of COC and discussion of magisterial and traditional Catholic teachings from natural law. Discerning through the principle of double effect, proportionate reason, and evidence gathered from the sciences, medical and moral conclusions are drawn that we believe to be fully compliant with good medicine and Catholic teaching. (shrink)

Background: Due to the aging society the number of informal caregivers is growing. Most informal caregivers are women working as nurses within a health organization and they have a high risk of developing mental and physical exhaustion. Until now little research attention has been paid to the expectations and needs of double duty caregivers and the role of self-management in managing private-work balance.Objective: The overall aim of this study was to investigate the expectations and needs of double duty (...) caregivers in Netherlands, and to examine the meaning of self-management in managing work-life balance.Method: Different research methods have been applied in this exploratory study. Firstly, a scoping review has been conducted on the topics self-management and sustainable employability of double-duty caregivers using the search engines: CINAHL, MEDLINE, PubMed, and Google Scholar. Furthermore, a qualitative study has been conducted through focus groups with double duty caregivers.Results: Twenty studies that met the inclusion criteria could be identified. We found that double duty caregivers have different motivations for being a double duty caregiver based on internal and external expectations. Double duty caregiving causes a lot of mental and physical pressure for the caregiver. To be able to combine both duty’s, double duty caregivers need flexibility and understanding from the workplace. Through two focus groups we found that social support from the workplace is not enough to be able to manage the situation. Self-management skills are important to be able to communicate effectively with the workplace and community care organizations about the kind of support needed. Also, health care organizations should offer the same support to double duty caregivers as any other informal caregiver.Discussion: Double-duty caregivers are at high risk of developing symptoms of overload and risk of reduced self-management quality and employability levels across time. Health care organizations and the double duty caregiver often wait too long to act instead of taking more preventive measures. Furthermore, community care organizations should dialog with double duty caregivers about their wishes concerning the division of caring tasks. This finding calls for special attention, with long-term solutions at both macro, organizational, and employee level. (shrink)

In this paper, I argue that the doctrine of double effect is disposed toward abuse. I try to identify two distinct sources of abuse of double effect: the conditions associated with standard formulations of double effect and the difficulty of fully understanding one’s own intentions in action. Both of these sources of abuse are exacerbated in complex circumstances, where double effect is most often employed. I raise this concern about abuse not as a criticism of (...) class='Hi'>double effect but rather as a problem that defenders should observe and try to prevent. I go on to suggest certain methods for avoiding the abuse of double effect such as hesitating to use it, applying it only with other agents, and selectively and carefully propagating it. (shrink)

Most people believe that the rights of others sometimes require us to act in ways that have even substantially sub-optimal outcomes, as viewed from an axiological perspective that ranks outcomes objectively. Bringing about the optimal outcome, contrary to such a requirement, is an ‘optimific wronging’. It is less clear, however, that we are required to prevent optimific wrongings. Perhaps the value of the outcome, combined with the relative weakness of prohibitions on allowing harm as compared to those against doing harm, (...) justifies non-intervention. In this article, I consider arguments to that effect, focusing on a recent paper in this journal by Andreas Mogensen. I argue that while we do not, in general, do wrong by failing to prevent optimific wrongings, we are nevertheless not permitted, in key cases, to refrain from intervening on the grounds that not intervening will secure the optimal outcome. (shrink)

This article provides a conceptual framework for studying the influence of mood on managerial ethical decision making. We draw on mood-congruency theory and the affect infusion model to propose that mood influences managerial ethical decision making through deliberate and conscious assessments of the moral intensity of an ethical issue. By accounting for proscriptive and prescriptive morality—i.e., harmful and prosocial behavior, respectively—we demonstrate that positive and negative mood may have asymmetrical and paradoxical effects on ethical decision making. Specifically, our analysis suggests (...) that individuals in a positive mood will be more likely to engage in prosocial behavior but less likely to refrain from activities that have harmful consequences for others, whereas individuals in a negative mood will be more likely to avoid activities that put others at risk or harm but at the same time less prone to engaging in activities that have positive consequences for others. Importantly, we account for the context within which managers make their decisions by examining how situational strength may moderate the influence of mood on managerial ethical decision making. Finally, we discuss how organizations can leverage the double-edged sword effect of mood on ethical decision making and prevent, control and manage the risk of unethical decision making on the part of managers. (shrink)

Hegel's concepts of force and power (absolute power, absolute force, infinite power, the power of the negative, the power of the Concept, etc.), scattered throughout the works, are doubled by other passages where Hegel speaks of various forms of impotence or powerlessness (Ohnmacht). What is powerlessness? In effect, for Hegel, powerlessness generally designates a defect or a deficiency, or a kind of laziness or contingent immaturity that prevents the Concept from fully realizing itself, even though its power is, on another (...) level, absolute. Powerlessness (Ohnmacht) is a lack of power (Macht). But how is absolute power related to a relative lack of power? If power is absolute, then why is it that a little power isn’t always enough? Or alternatively, why does powerlessness have a role to play at all in a system where the power of the Concept determines everything inexorably? How do these two terms relate to each other in Hegel’s thought, especially in the context of the Subjective Logic? (shrink)

Without taking a position on the overall justification of anti-doping regulations, I analyse the possible justification of Therapeutic Use Exemptions from such rules. TUEs are a creative way to prevent the unfair exclusion of athletes with a chronic condition, and they have the potential to be the least bad option. But they cannot be competitively neutral. Their justification must rest, instead, on the relevance of intentions to permissibility. I illustrate this by means of a set of thought experiments in which (...) only an athlete’s intentions vary. I argue that the Doctrine of Double Effect sheds some light on TUEs and illustrate this by applying different readings of the DDE to the thought experiment. This underpins a justification of anti-doping exemptions very different from the approach adopted by the World Anti-Doping Agency. I argue for three changes to bring TUEs in line with this understanding: rewriting of the regulations, transparency, and a greater role for athletes in determining what exemptions are allowed, and when. (shrink)

The carbon emissions of global healthcare activities make up 4%–5% of total world emissions, with the majority coming from industrialised countries. The solution to healthcare carbon reduction in these countries, ostensibly, would be preventive healthcare, which is less resource intensive than corrective healthcare in itself and, as a double benefit, reduces carbon by preventing diseases which may require higher healthcare carbon to treat. This leads to a paradox: preventive healthcare is designed to give humans longer, healthier lives. But, by (...) extending life spans, the carbon emissions of a person increase both over a lifetime and in the medical industry overall. At the same time, the need for higher carbon end-of-life care does not disappear, particularly in resource intensive countries. This article will first identify sources of healthcare carbon, focusing on the industrialised world, and explain various efforts towards healthcare carbon reduction, which include preventive healthcare. Second, it will develop the ‘paradox of prevention’—that preventive healthcare may save healthcare carbon by proximally reducing the need for medical treatments, but also, paradoxically, result in more healthcare carbon both in an individual’s life and in the medical industry. The third section will offer ethical principles for approaching the paradox of prevention. The conclusion will emphasise the need for institutional approaches to healthcare carbon reduction in the industrialised world, which will relieve some of the tensions of healthcare industry decarbonisation and individual healthcare carbon use. (shrink)

ABSTRACT Public health authorities sometimes have to make decisions about the use of preventive medical measures—e.g. vaccination programmes—which could, if realised, save millions of lives, but could also kill a certain (small) number of those subjected to the measures. According to a rough‐and‐ready utilitarian calculation, such measures should be taken, but there are also possible objections to this view. A liberal objection to the use of mandatory preventive measures which might harm human beings is that people have a right to (...) decide for themselves whether or not they want to participate in the programme. A further objection is based on the claims that first, the authorities are directly killing those who die because of, say, vaccination programmes, and second, directly killing human beings is forbidden (since every human being has a right to live). The latter objection is discussed at length in the present paper. The validity of three doctrines, the doctrines of the double effect, of acts and omissions, and of killing and letting die, are considered with reference to the use of preventive measures, and found inapplicable. The objection is, however, refuted by comparing some hypothetical examples, and the initial utilitarian calculation is reinforced. (shrink)

RNA polymerase II is recruited to DNA double‐strand breaks (DSBs), transcribes the sequences that flank the break and produces a novel RNA type that has been termed damage‐induced long non‐coding RNA (dilncRNA). DilncRNAs can be processed into short, miRNA‐like molecules or degraded by different ribonucleases. They can also form double‐stranded RNAs or DNA:RNA hybrids. The DNA:RNA hybrids formed at DSBs contribute to the recruitment of repair factors during the early steps of homologous recombination (HR) and, in this way, (...) contribute to the accuracy of the DNA repair. However, if not resolved, the DNA:RNA hybrids are highly mutagenic and prevent the recruitment of later HR factors. Here recent discoveries about the synthesis, processing, and degradation of dilncRNAs are revised. The focus is on RNA clearance, a necessary step for the successful repair of DSBs and the aim is to reconcile contradictory findings on the effects of dilncRNAs and DNA:RNA hybrids in HR. (shrink)

The ethical controversies raised by an industry-sponsored placebo-controlled trial of Risperidone for mania, conducted across eight sites in India, provide opportunities for dialogue, reflection and interdisciplinary consensus building on the processes and validity of the methods of evaluating the efficacy of interventions in health care. This commentary contextualises the debate in considerations of the evolution of morality and double standards. It is suggested that a productive interpretation of this unfolding drama should appreciate the folly of dissociating ethical standards in (...) routine health care from those used in health research, the culturally and economically grounded preferences in research priority setting, and the choice of ethical principles underlying participation in, and conduct of, clinical research. A broader discussion of ethical problems in clinical trials which includes questions about the evidence that informs ethical opinion is required to prevent harm to participants and subsequent recipients of health care and to restore confidence in the methods and the results of research in health care. (shrink)

This article explores the overlap between systems biology and predictive neuroscience, placing them in their larger context, the contemporary trend of bioinformatic convergence across the sciences. These two domains overlap with respect to their interest in data accumulation and data integration; their reliance on computational statistical correlation; and their translational goals, that is, producing practical fruits and applications from the interscientific cross-pollination that contemporary data-integrative approaches make possible. The interventions that such translational conversations generate are medical and social in nature, (...) and are aimed at both prevention and treatment. It will be argued that such approaches, socially and medically applied, contain potential for conveying both agency-enhancing and agency-diminishing social messages. The article concludes with a call to balance the overwhelmingly quantitative focus characteristic of predictive neuroscience with more qualitative empirical methodologies. This would represent a double helical approach. (shrink)

In this chapter, I review some issues in the metaphysics of causation that have been widely discussed by experimental philosophers. After I review the work investigating the effects of normality on causal judgment, I discuss the work on action-omission differences, temporal differences (late-preemption), and double-prevention scenarios. I review some explanations for the patterns of causal judgments that experimental philosophers observe in all of these cases. I then identify some new issues for the experimental philosophy of causation and experimental (...) metaphysics more generally. (shrink)

The foundational conviction of contemporary liberal thought is that all persons possess equal moral worth and are entitled to equal concern and respect by others. At the same time, nation states, as the primary organs of our collective self-governance, frequently pursue policies that are strikingly partial towards the interests of compatriots over those of foreigners. A common strategy for justifying this national partiality is to view it as grounded in associative obligations that we incur by standing in special relationships with (...) our fellow citizens. For instance, according to familiar arguments from ‘fair play’, voluntarily partaking in and benefiting from cooperative relationships with our fellow citizens gives us reciprocal obligations to maintain these social institutions and care for needy compatriots. By contrast, we do not have corresponding associative obligations towards foreigners. I maintain that such arguments from associative obligations face an important stumbling block. I argue for the following “Boundary Principle”, according to which we cannot appeal to special relationships amongst members of a group to justify an attitude of partiality towards them unless the boundaries of this group, and the fact that they exclude other persons from membership, can also be justified. If this is right, arguments from associative obligations, by themselves, are necessarily incomplete. Most modern states severely limit the scope of economic migration, and thereby prevent many would-be contributors to the collective enterprises of affluent societies from entering into those special relationships with us that would give rise to associative obligations on our part. Not only are would-be immigrants excluded from the benefits that participation in the cooperative schemes of affluent nation-states would itself confer; in addition, the fact that they do not stand in such cooperative relationships with us is then appealed to in order to justify the fact that we assign significantly less weight to their interests in the formulation of state policy. The upshot of my discussion is not that a defense of national partiality in terms of associative obligations cannot succeed. It is rather that a successful defense of national partiality in these terms is more closely tied to the question whether principled restrictions can be placed on immigration than most political philosophers have hitherto assumed. (shrink)

It is widely thought that there is an important argument to be made that starts with premises taken from the science of physics and ends with the conclusion of physicalism. The standard view is that this argument takes the form of a causal argument for physicalism. Roughly: physics tells us that the physical realm is causally complete, and so minds (among other entities) must be physical if they are to interact with the world as we think they do. In what (...) follows, I raise problems for this view. After an initial review of the causal argument, I begin my case by showing that the totality of physical truths do not deductively entail the causal completeness of the physical realm, using a double-prevention scenario and causation by omission to show that nonphysical causes of physical effects would not need to violate physical conservation laws. I then move on to raise problems for an inductive argument for causal completeness by drawing on the neo-Russellian view that there is no causation in fundamental physics, and so causation must itself be a realized or derived entity. I conclude by suggesting that the underlying problem is that the causal argument has fallen out of touch with the sophisticated understanding that philosophers have developed of the role of causation within physics. (shrink)

This paper is concerned with the formulation and analysis of an epidemic model of COVID-19 governed by an eight-dimensional system of ordinary differential equations, by taking into account the first dose and the second dose of vaccinated individuals in the population. The developed model is analyzed and the threshold quantity known as the control reproduction number R0\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathcal {R}_{0}$$\end{document} is obtained. We investigate the equilibrium stability of the system, and the COVID-free equilibrium (...) is said to be locally asymptotically stable when the control reproduction number is less than unity, and unstable otherwise. Using the least-squares method, the model is calibrated based on the cumulative number of COVID-19 reported cases and available information about the mass vaccine administration in Malaysia between the 24th of February 2021 and February 2022. Following the model fitting and estimation of the parameter values, a global sensitivity analysis was performed by using the Partial Rank Correlation Coefficient (PRCC) to determine the most influential parameters on the threshold quantities. The result shows that the effective transmission rate (α)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$(\alpha )$$\end{document}, the rate of first vaccine dose (ϕ)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$(\phi )$$\end{document}, the second dose vaccination rate (σ)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$(\sigma )$$\end{document} and the recovery rate due to the second dose of vaccination (η)\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$(\eta )$$\end{document} are the most influential of all the model parameters. We further investigate the impact of these parameters by performing a numerical simulation on the developed COVID-19 model. The result of the study shows that adhering to the preventive measures has a huge impact on reducing the spread of the disease in the population. Particularly, an increase in both the first and second dose vaccination rates reduces the number of infected individuals, thus reducing the disease burden in the population. (shrink)

It is widely thought that there is an important argument to be made that starts with premises taken from the science of physics and ends with the conclusion of physicalism. The standard view is that this argument takes the form of a causal argument for physicalism. Roughly, physics tells us that the physical realm is causally complete, and so minds (among other entities) must be physical if they are to interact with the world as we think they do. In what (...) follows, I raise problems for this view. After an initial review of the causal argument, I begin my case by showing that the totality of physical truths do not deductively entail the causal completeness of the physical realm, using a double-prevention scenario and causation by omission to show that nonphysical causes of physical effects would not need to violate physical conservation laws. I then move on to raise problems for an inductive argument for causal completeness by drawing on the neo-Russellian view that there is no causation in fundamental physics, and so causation must itself be a realized or derived entity. I conclude by suggesting that the underlying problem is that the causal argument has fallen out of touch with the sophisticated understanding that philosophers have developed of the role of causation within physics. (shrink)

I defend a dualist model of psychophysical causal relevance, according to which mental events are not causes in the physical domain, but are causally relevant in this domain because they enable — or, in other words, provide the appropriate structure for — physical events to be caused. More specifically, I defend the claim that mental events are ‘double preventers’ within the physical domain, where double preventers are a type of enabling event. The distinction that I make between causes (...) and enabling events and the dualist model of psychophysical causal relevance that I defend has emerged from my acceptance of the powers theory of causation. In this paper, I explore how this dualist model of psychophysical causal relevance offers a response to Papineau’s defence of the causal completeness principle via the conservation laws. (shrink)

Loewer (in: Physicalism and its discontents, 2001; Philos Phenomenol Res 65:655–663, 2002; in: Contemporary debates in philosophy of mind, 2007) has argued that the nonreductive physicalist should respond to the exclusion problem by endorsing the overdetermination entailed by their view. Kim’s (Physicalism, or something near enough, 2005; in: Contemporary debates in the philosophy of mind, 2007) argument against this reply is based on the premise that mental causation must be a productive relation in order to sustain human agency. In this (...) paper, I challenge the premise that mental causation is a productive relation by appealing to the underlying double prevention structure of the physiological mechanisms of human action. Since the causal pathways from an agent’s mental events to bodily movement involves an absence, mental causation is not productive. This places Kim in a troublesome dilemma in his debate with Loewer: either surrender mental causation or deny that causation is a productive relation. With the support offered for productive mental causation undermined, responses to the exclusion problem based on accepting overdetermination remain viable options for the nonreductive physicalist. (shrink)

Sophie Gibb has recently invented a very interesting strategy against Kim’s causal exclusion argument. This strategy adopts the powers theory of causation and an interpretation of mental causation in terms of double prevention. Gibb’s strategy results both in invalidating the principle of the causal closure of the physical domain in most of its formulations and in disarming the argument in question. In my paper, I present a general procedure for the opponents of reductive physicalism which enables them to (...) _grapple successfully_ with the mentioned principle. I also argue that although it could be possible to adopt Gibb’s strategy as a part of this procedure, there is a simpler one to obtain a similar outcome. This strategy is mainly based on Uwe Meixner’s causal argument against physicalism and it leads to the conclusion that if one accepts the principle of sufficient cause, then one should reject the principle of causal closure in the light of some empirical data. This alternative proposal is more attractive than Gibb’s solution, since it is independent of any conception of causation, does not make any distinction between causal relevance and causal efficacy, and does not refer to the notion of _double prevention_. (shrink)

There are many ways of attaching two objects together: for example, they can be connected, linked, tied or bound together; and the connection, link, tie or bind can be made of chain, rope, or cement. Every one of these binding methods has been used as a metaphor for causation. What is the real significance of these metaphors? They express a commitment to a certain way of thinking about causation, summarized in the following thesis: ‘In any concrete situation, there is an (...) objective fact of the matter as to whether two events are in fact bound by the causal relation. It is the aim of philosophical inquiry to analyze this objective relation.’ Through a variety of examples, I hope to cast doubt on this seemingly innocuous thesis. The problem lies not with the word ‘objective’, but with the word ‘the’. The goal of a philosophical account of causation should not be to capture the causal relation, but rather to capture the many ways in which the events of the world can be bound together. 1 The metaphors 2 Unpacking the metaphors 3 Theories of causation 4 The two assassins 5 The birth control pills 6 The smoker-protector gene 7 The bicycle thief 8 Further examples 8.1 Indeterminism 8.2 Probability-lowering causes 8.3 Parts vs wholes 8.4 Symmetric overdetermination 8.5 Delayers 8.6 Causation by omission 8.7 Double prevention/disconnection 8.8 Preemptive prevention 8.9 Quantitative variables 9 Conclusion. (shrink)

Many philosophers maintain that causation is to be explicated in terms of a kind of dependence between cause and effect. These “dependence” theories are opposed by “production” accounts which hold that there is some more fundamental causal “oomph”. A wide range of experimental research on everyday causal judgments seems to indicate that ordinary people operate primarily with a dependence-based notion of causation. For example, people tend to say that absences and double preventers are causes. We argue that the impression (...) that commonsense causal discourse is largely dependence-based is the result of focusing on a very narrow class of causal verbs. Almost all of the vignette-based experimental work on causal judgment has been prosecuted using the word “cause”. But much ordinary causal discourse involves special causal verbs, such as “burn” and “crack”. We find that these verbs display a quite different pattern from the verb “cause”. For instance, for absences and double preventers (Studies 1-3), we find that while people are inclined to say that X caused Y to burn, turn, crack or start, they are less inclined to think that X burned, turned, cracked or started Y. In Study 4, we find that for chains involving a distal and proximal event, people are inclined to say that the distal event is not a special cause of the outcome, though it is a “cause” of the outcome. Together, we find a surprising double dissociation between “cause” and a stock of special causal verbs. We conclude by suggesting that much commonsense causal judgment, which heavily trades in special causal verbs, might be better captured by production-based accounts of causation. (shrink)

Introduction , Sophie Gibb 1. Mental Causation , John Heil 2. Physical Realization without Preemption , Sydney Shoemaker 3. Mental Causation in the Physical World , Peter Menzies 4. Mental Causation: Ontology and Patterns of Variation , Paul Noordhof 5. Causation is Macroscopic but not Irreducible , David Papineau 6. Substance Causation, Powers, and Human Agency , E. J. Lowe 7. Agent Causation in a Neo-Aristotelian Metaphysics , Jonathan D. Jacobs and Timothy O’Connor 8. Mental Causation and Double (...) class='Hi'>Prevention , Sophie Gibb 9. The Identity Theory as a Solution to the Exclusion Problem , David Robb 10. Continuant Causation, Fundamentality, and Freedom , Peter Simons 11. There is no Exclusion Problem , Steinvor Tholl Arnadottir and Tim Crane. (shrink)

Este trabajo discute una de las objeciones de N. Hall al análisis contrafactual de D. Lewis. Según Hall, los intentos de fortalecer el análisis contrafactual se apoyan en la aceptación de la transitividad, la localidad y el carácter intrínseco de las relaciones causales. Esto es problemático en cuanto el concepto de doble prevención evidencia tensiones entre estas tres tesis y el concepto de dependencia, central en el análisis de Lewis. Revisando uno de los ejemplos de Hall, se defiende que su (...) crítica al análisis contrafactual cumple parcialmente su objetivo en referencia a la localidad, ya que sólo una de las estructuras causales que Hall presenta acepta la dependencia y no la localidad, no tratándose de un típico caso de doble prevención. Finalmente se propone la denominación early doble prevention para los casos que aceptan la dependencia y no la localidad, y late doble prevention para los que aceptan ambas tesis. This paper discusses one of the objections made by N. Hall to D. Lewis's counterfactual analysis. According to Hall, the attempts to strengthen the counterfactual analysis are supported by the acceptance of transitivity, locality and intrinsic nature of causal relationships. This is problematic, as the concept of double prevention demonstrates the tensions existing among these three theses and the concept of dependence which is central in Lewis's analysis. By studying one of the examples given by Hall, we can sustain that his criticism to counterfactual analysis partially fulfills its goal in reference to locality, taking into account that only one of the causal structures exposed by Hall accept dependence but not locality and is not a typical example of double prevention. Finally we suggest the name of early double prevention for those cases that accept the dependency but not the locality, and late double prevention for those accepting both theses. (shrink)

When is a cause of a cause of an effect also a cause of that effect? The right answer is either Sometimes or Always . In favour of Always , transitivity is considered by some to be necessary for distinguishing causes from redundant non-causal events. Moreover transitivity may be motivated by an interest in an unselective notion of causation, untroubled by principles of invidious discrimination. And causal relations appear to add up like transitive relations, so that the obtaining of the (...) overarching relation is not independent of the obtaining of the intermediaries. On the other hand, in favour of Sometimes , often we seem not to treat events that are very spatiotemporally remote from an effect as its causes, even when connected to the effect in question by a chain of counterfactual or chance-raising dependence. Moreover cases of double prevention provide counterexamples to causal transitivity even over short chains. According to the argument of this paper, causation is non-transitive. Transitizing causation provides no viable account of causal redundancy. An unselective approach to causation may motivate resisting the distance counterexamples to transitivity, but it does not help with double prevention, and even makes it more intractable. The strongest point in favour of transitivity is the adding up of causal relations, and this is the point that extant non-transitizing analyses have not adequately addressed. I propose a necessary condition on causation that explains the adding up phenomenon. In doing so it also provides a unifying explanation of distance and double prevention counterexamples to transitivity. (shrink)

Absences pose a dilemma for theories of causation. Allowing them to be causes seems to make theories too permissive (Lewis, 2000). Banning them from being causes seems to make theories too restrictive (Schaffer, 2000, 2004). An increasingly popular approach to this dilemma is to acknowledge that norms can affect which absences count as causes (e.g., Thomson, 2003; McGrath, 2005; Henne et al., 2017; Willemsen, 2018). In this article, I distinguish between two influential implementations of such ‘abnormality’ approaches and argue that (...) so-called ‘double-prevention mechanisms’ provide counterexamples against both. (shrink)

Recently, there has been an increased interest in employing model-based definitions of actual causation in legal inquiry. The formal precision of such approaches promises to be an improvement over more traditional approaches. Yet model-based approaches are viable only if suitable models of legal cases can be provided, and providing such models is sometimes difficult. I argue that causal-model-based definitions benefit legal inquiry in an indirect way. They make explicit the causal assumptions that need to be made plausible to defend a (...) particular claim of actual causation. My argument concerns the analysis of legal cases involving a combination of double prevention and causal redundancy. I show that discussions among legal theorists about such cases sometimes suffer from ambiguous assumptions about the causal structure. My account illustrates that causal models can act as a heuristic tool for clarifying such assumptions, and that causal models provide a framework for more accurate analyses of legal cases involving complex causal structure. (shrink)

In his recent book Constructing the World, David Chalmers defends A Priori Scrutability, the thesis that there is a compact class of truths such that for any truth p, a Laplacian intellect could know a priori that if the truths in that class hold, then p. In this paper, I develop an objection to Chalmers’ thesis that focuses on his treatment of a so-called that’s-all truth. My objection draws on Theodore Sider’s discussion of border-sensitive properties, and also on the causal (...) phenomenon of double prevention. (shrink)

In this reply, I seek to summarize fairly the criticisms advanced by each of my four critics, Jonathan Schaffer, Gideon Yaffe, John Gardner, and Carolina Sartorio. That there is so little overlap either in the aspects of the book on which they focus or in the arguments they advance about those issues has forced me to reply to each of them separately. Schaffer focuses much of his criticisms on my view that absences cannot serve as causal relata and argues that (...) this commits me to the view that double preventions cannot be causal of events such as deaths. I deny that double preventions such as beheadings are not causal, while admitting that other double preventions are not causal but denying that this latter conclusion is unwelcome in its implications. Yaffe criticizes my view that a person substantially causing some harm H is sufficient for that person having performed the activity of H-ing, whereas I affirm that causing H is sufficient for doing the action of H-ing even if it is not sufficient for intentionally H-ing. Gardner takes issue with my “experiential argument” for the relevance of causation to moral blame; he urges that we cannot infer that we are more guilty from either the psychological fact that we feel more guilty or from the moral fact that it is virtuous to feel such heightened guilt, because it is viciously circular: we feel such guilt only because we have already judged that we are more guilty, and it is virtuous to feel such guilt only because we in fact are more guilty. I deny such circularity exists. Sartorio takes issue with my thesis that in omissive overdetermination cases neither omitter is morally responsible for the harm. I trade intuitions with Sartorio about a range of related cases that we each think bears on the issue. (shrink)

Causation is defined as a relation between facts: C causes E if and only if C and E are nomologically independent facts and C is a necessary part of a nomologically sufficient condition for E. The analysis is applied to problems of overdetermination, preemption, trumping, intransitivity, switching, and double prevention. Preventing and allowing are defined and distinguished from causing. The analysis explains the direction of causation in terms of the logical form of dynamic laws. Even in a universe (...) that is deterministic in both temporal directions, not every fact must have a cause and present facts may have no future causes. (shrink)

In order to defend mental explanations dualists may appeal to dispositions (powers). By accepting a powers theory of causation, a dualist can more plausibly defend mental explanations that are given independently of physical explanations. Accepting a power-based theory still comes with a price. Absences and double preventers are not causes in a powers theory, and solutions based on them can only defend their explanatory relevance in mental explanations. There is still a chance that such mental explanations can be causal (...) explanations, though they do not refer to real causes. (shrink)