One of the most plausible and widely discussed examples of strong emergence is molecular structure. The only detailed account of it, which has been very influential, is due to Robin Hendry and is formulated in terms of downward causation. This paper explains Hendry’s account of the strong emergence of molecular structure and argues that it is coherent only if one assumes a diachronic reflexive notion of downward causation. However, in the context of this notion of downward causation, the strong emergence (...) of molecular structure faces three challenges that have not been met and which have so far remained unnoticed. First, the putative empirical evidence presented for the strong emergence of molecular structure equally undermines supervenience, which is one of the main tenets of strong emergence. Secondly, it is ambiguous how the assumption of determinate nuclear positions is invoked for the support of strong emergence, as the role of this assumption in Hendry’s argument can be interpreted in more than one way. Lastly, there are understandings of causation which render the postulation of a downward causal relation between a molecule’s structure and its quantum mechanical entities, untenable. (shrink)

Whether or not quantum physics can account for molecular structure is a matter of considerable controversy. Three of the problems raised in this regard are the problems of molecular structure. We argue that these problems are just special cases of the measurement problem of quantum mechanics: insofar as the measurement problem is solved, the problems of molecular structure are resolved as well. In addition, we explore one consequence of our argument: that claims about the reduction or emergence of molecular structure (...) cannot be settled independently of the choice of a particular resolution to the measurement problem. Specifically, we consider how three standard putative solutions to the measurement problem inform our under- standing of a molecule in isolation, as well as of chemistry’s relation to quantum physics. (shrink)

Abstract It would be puzzling if the morally best agents were not so good after all. Yet one prominent account of the morally best agents ascribes to them the exact motivational defect that has famously been called a “fetish.” The supposed defect is a desire to do the right thing, where this is read de dicto . If the morally best agents really are driven by this de dicto desire, and if this de dicto desire is really a fetish, then (...) the morally best agents are moral fetishists. This is puzzling. I resolve the puzzle by showing that on a proper understanding of the interaction between de dicto and de re moral motivation, it is not only not fetishistic, but quite possibly desirable, to be motivated by a de dicto desire to do the right thing. My argument relies partly on an appeal to a non-buck-passing account of moral rightness, according to which rightness is itself an additional reason-giving property over and above the right-making properties of an action. If this account of moral rightness is correct, then we would expect the morally best agents to exhibit de dicto moral motivation. However, since their de dicto desire acts in concert with de re desires, there is no reason to consider it a fetish. Content Type Journal Article Pages 1-19 DOI 10.1007/s11098-011-9825-z Authors Vanessa Carbonell, Philosophy Department, University of Cincinnati, P.O. Box 210374, Cincinnati, OH 45221-0374, USA Journal Philosophical Studies Online ISSN 1573-0883 Print ISSN 0031-8116. (shrink)

Contemporary biological research has suggested that some host–microbiome multispecies systems (referred to as “holobionts”) can in certain circumstances evolve as unique biological individual, thus being a unit of selection in evolution. If this is so, then it is arguably the case that some biological adaptations have evolved at the level of the multispecies system, what we call hologenomic adaptations. However, no research has yet been devoted to investigating their nature, or how these adaptations can be distinguished from adaptations at the (...) species-level (genomic adaptations). In this paper, we cover this gap by investigating the nature of hologenomic adaptations. By drawing on the case of the evolution of sanguivory diet in vampire bats, we argue that a trait constitutes a hologenomic adaptation when its evolution can only be explained if the holobiont is considered the biological individual that manifests this adaptation, while the bacterial taxa that bear the trait are only opportunistic beneficiaries of it. We then use the philosophical notions of emergence and inter-identity to explain the nature of this form of individuality and argue why it is special of holobionts. Overall, our paper illustrates how the use of philosophical concepts can illuminate scientific discussions, in the trend of what has recently been called metaphysics of biology. (shrink)

There is a persisting debate about what chemical bonds are and whether they exist. I argue that chemical bonds are real patterns of interactions between subatomic particles. This proposal resolves the problems raised in the context of existing understandings of the chemical bond and provides a novel way to defend the reality of chemical bonds.

The moral community is a social community, and as such it is vulnerable to social problems and pathologies. In this essay I identify a particular way in which participation in the moral community can be constrained by social factors. I argue that features of the social world—including power imbalances, oppression, intergroup conflict, communication barriers, and stereotyping—can make it nearly impossible for some members of the moral community to hold others responsible for wrongdoing. Specifically, social circumstances prevent some marginalized people from (...) engaging in what Stephen Darwall calls “felicitous moral address” (Darwall 2006). We should think of some members of the moral community as having “second-class moral citizenship” in ways that parallel second-class political citizenship. The injustice of second-class moral citizenship can be understood by drawing an analogy with Miranda Fricker’s notion of “epistemic injustice” (Fricker 2007). Fricker’s account of how people can be undermined in their capacity as knowers can be extended to show how people can be undermined in their capacity as makers of moral claims, which can be called “claimant injustice”. (shrink)

Here is something puzzling. Still Lifes can be expressive. Expression involves movement. Hence, (some) Still Lifes move. This seems odd. I consider a novel explanation to this ‘static-dynamic’ puzzle from Mitchell Green (2007). Green defends an analysis of artistic expressivity that is heavily indebted to work on intermodal perception. He says visual stimuli, like colours and shapes, can elicit experienced resemblances to sounds, smells and feelings. This enables viewers to know how an emotion feels by looking at the picture. The (...) hypothesis is intriguing, but I show that his suggestion that we empathize with the pictorial content is implausible and that this exposes a flaw in the way his argument moves from experiential mappings to experiential-affective mappings. Consequently, I register some reservations about the way Green supposes we detect these cross-modal qualities. (shrink)

In this paper, I discuss Jenefer Robinson’s personalist account of pictorial expression. [1] According to personalism, a picture possesses the expressive properties we attribute to it because we take it that someone expresses E in the work. Robinson’s particular strategy exploits the concept of an implied persona who ‘unifies’ and ‘specifies’ what is expressed. [2] Dominic Lopes challenges this view by attacking what he takes to be a flawed assumption motivating the personalist account: the priority of figure expression. [3] Once (...) we acknowledge this flaw, he argues, there is no good reason to prefer personalism to an impersonalist theory. I will argue that Robinson qua personalist can pre-empt this strike by clarifying the relation between (a) what a picture expresses and (b) what is depicted as expressing in the picture. Rather than leading with the idea that personalism unifies or determines the meaning, I argue that impersonalism diminishes it and that, should it be accepted, we would be left with an impoverished view of what specific art pieces can mean. (shrink)

Holobionts are symbiotic assemblages composed by a macrobe host plus its symbiotic microbiota. In recent years, the ontological status of holobionts has created a great amount of controversy among philosophers and biologists: are holobionts biological individuals or are they rather ecological communities of independent individuals that interact together? Chiu and Eberl have recently developed an eco-immunity account of the holobiont wherein holobionts are neither biological individuals nor ecological communities, but hybrids between a host and its microbiota. According to their account, (...) the microbiota is not a proper part of the holobiont. Yet, it should be regarded as a set of scaffolds that support the individuality of the host. In this paper, we approach Chiu and Eberl’s account from a metaphysical perspective and argue that, contrary to what the authors claim, the eco-immunity account entails that the microorganisms that compose the host’s microbiota are proper parts of the holobiont. Second, we argue that by claiming that holobionts are hybrids, and therefore, not biological individuals, the authors seem to be assuming a controversial position about the ontology of hybrids, which are conventionally characterized as a type of biological individual. In doing so, our paper aligns with the contemporary tendency to incorporate metaphysical resources to shed light on current biological debates and builds on that to provide additional support to the consideration of holobionts as biological individuals from an eco-immunity perspective. (shrink)

I argue for the existence of a ‘ratcheting-up effect’: the behavior of moral saints serves to increase the level of moral obligation the rest of us face. What we are morally obligated to do is constrained by what it would be reasonable for us to believe we are morally obligated to do. Moral saints provide us with a special kind of evidence that bears on what we can reasonably believe about our obligations. They do this by modeling the level of (...) sacrifice a person can realistically bear. Exposure to moral saints thus ‘ratchets-up’ our obligations by combating a type of ignorance that would otherwise defeat those obligations. (shrink)

Susan Wolf famously claimed that the life of the moral saint is unattractive from the “point of view of individual perfection.” I argue, however, that the unattractive moral saints in Wolf’s account are self-defeating on two levels, are motivated in the wrong way, and are called into question by real-life counter-examples. By appealing to a real-life case study, I argue that the best life from the moral point of view is not necessarily unattractive from the individual point of view.

The purpose of cultural competence education for medical professionals is to ensure respectful care and reduce health disparities. Yet as Berger and Miller (2021) show, the cultural competence framework is dated, confused, and self-defeating. They argue that the framework ignores the primary driver of health disparities—systemic racism—and is apt to exacerbate rather than mitigate bias and ethnocentrism. They propose replacing cultural competence with a framework that attends to two social aspects of structural inequality: health and social policy, and institutional-system activity; (...) and two psychological aspects of structural inequality: the clinical encounter, and the epistemic. -/- We agree with the structural approach. To that end, we think it would be fruitful to include attention to physical contributors to structural inequality, namely the material artifacts used in medicine. Devices, tools, and technologies can materialize biases, perpetuate oppression, and contribute to health disparities. Granted, not everything that interests philosophers can be squeezed into medical education. Nevertheless, there are compelling reasons for including the study of material artifacts in education designed to reduce health disparities. First, devices and tools often carry forward biases from the past, and keep biases hidden from plain sight. Second, by studying these artifacts, future clinicians can begin to see themselves as part of a larger sociotechnical system. Finally, as medicine becomes increasingly tech-laden, it’s important for clinicians to see how material artifacts (including algorithms) connect individuals to structures. This will help to undermine oversimplified narratives according to which objective tools and technologies can correct for the bias and subjectivity of flawed human beings. (shrink)

Der Beitrag widmet sich einer Erkundung des schöpferischen Eigen- potenzials von Ausdrucksgeschehen, dem entlang von Maurice Merleau-Pontys Phänomenologie der Expressivität nachgespürt wird. Expressivität zeigt sich hier als ein Übergangsphänomen, das in seinem Entstehen und seiner Prozessua- lität nachvollzogen wird. Indem Ausdrucksgeschehen in seiner Ereignishaftigkeit erkundet wird, rekurriert der Beitrag auf eine Form der Medialität, die einem reinen Tätigsein sowie einer starren Passivität bereits vorgelagert ist. Das Ar- gument kulminiert in der Theorie eines relationalen Gefüges von Subjektivität, Sinn, sozio-kultureller Welt und (...) Expressivität. (shrink)

Malicious moral envy is an aversive reaction to a rival’s moral properties or accomplishments, accompanied by a tendency to level-down the target by morally tarnishing or sabotaging them. In this essay I give an account of malicious moral envy, showing how it is a sub-type of envy more generally. I describe Donald Trump’s behaviors toward Barack Obama and Anthony Fauci as a case study of malicious moral envy. I argue that malicious moral envy is puzzling, first because it is self-defeating, (...) and then—more interestingly—because it betrays an ambivalence about morality and moral requirements. I explore how malicious moral envy relates to other issues in the literature on moral ambivalence, including moral exemplars, moral saints, admirable immorality, and the pathologizing of moral outliers. Ultimately I suggest that mild forms of malicious moral envy may play an important role in helping agents navigate the socially complex and constantly changing landscape of moral requirements. (shrink)

Knowledge is necessary for certain moral obligations. In learning something new, one sometimes triggers a moral obligation. This paper argues that the existence of these knowledge-based obligations poses a problem for the view that we are not only free to choose the course of our own lives, including our careers and personal projects, but also free to change our minds and quit at any time to pursue something else. For if our choice of life path has generated knowledge-based moral obligations (...) that we must fulfill, then it is apparently not true that we can quit at any time. To resolve this tension, this paper proposes a relatively demanding set of conditions under which it is permissible to swap one career or life project for another. The resulting compromise reconciles the moral force of knowledge-based obligations with the basic freedom to choose less-than-optimal careers and projects. It also highlights the distinctive role played by knowledge and expertise in generating the intractable problem of morality’s demandingness. (shrink)

Holobionts are symbiotic assemblages composed by a host plus its microbiome. The status of holobionts as individuals has recently been a subject of continuous controversy, which has given rise to two main positions: on the one hand, holobiont advocates argue that holobionts are biological individuals; on the other, holobiont detractors argue that they are just mere chimeras or ecological communities, but not individuals. Both parties in the dispute develop their arguments from the framework of the philosophy of biology, in terms (...) of what it takes for a “conglomerate” to be considered an interesting individual from a biological point of view. However, the debates about holobiont individuality have important ontological implications that have remained vaguely explored from a metaphysical framework. The purpose of this paper is to cover that gap by presenting a metaphysical approach to holobionts individuality. Drawing upon a conception of natural selection that puts the focus on the transgenerational recurrence of the traits and that supports the thesis that holobionts are units of selection, we argue that holobionts bear emergent traits and exert downward powers over the entities that compose them. In this vein, we argue, a reasonable argument can be made for conceiving holobionts as emergent biological individuals. (shrink)

It is well-known that racism is encoded into the social practices and institutions of medicine. Less well-known is that racism is encoded into the material artifacts of medicine. We argue that many medical devices are not merely biased, but materialize oppression. An oppressive device exhibits a harmful bias that reflects and perpetuates unjust power relations. Using pulse oximeters and spirometers as case studies, we show how medical devices can materialize oppression along various axes of social difference, including race, gender, class, (...) and ability. Our account uses political philosophy and cognitive science to give a theoretical basis for understanding materialized oppression, explaining how artifacts encode and carry oppressive ideas from the past to the present and future. Oppressive medical devices present a moral aggregation problem. To remedy this problem, we suggest redundantly layered solutions that are coordinated to disrupt reciprocal causal connections between the attitudes, practices, and artifacts of oppressive systems. (shrink)

Propomos o uso do Panóptico como a mais eficaz arma no combate a pandemias. Revisamos a literatura e inovamos aplicando-a ao enfrentamento da Covid-19. Dividimos o Panóptico em dois: o Superpanóptico, em toda a sociedade, e o Pós Panóptico Tecnológico, dentro dos hospitais. Sendo, o primeiro, um sistema de vigilância baseado na alta tecnologia que perpassa a tudo e a todos, a todo tempo. E, o segundo, os locais físicos que melhor reproduzem a lógica do Panóptico na contemporaneidade. Da pesquisa (...) de notícias, concluímos que o Panóptico está mais vivo do que nunca e que as nossas propostas teóricas refletem o que já está em funcionamento, tanto na sociedade, quanto nos hospitais. E que seu uso é altamente eficaz porque reduz o número de novas infecções, garante a maior segurança possível a todos, com grande redução de custos e, principalmente, de perdas humanas. (shrink)

The purpose of this essay is to make the case that the ethical issues raised by the current U.S. practice of direct-to-consumer prescription drug advertising are worthy of study in philosophy courses, and to provide instructors with some ideas for how they might approach teaching the topic, despite the current relative scarcity of philosophical literature published on it. This topic presents a unique opportunity to cover ground in ethics, critical thinking, and scientific literacy simultaneously. As a case study, the practice (...) of DTC advertising is both theoretically rich and universally relevant to students’ lives. The nature of these ads—numerous, diverse, visually and thematically entertaining—makes them delicious fodder for in-class activities, small group work, discussion-based learning, creative projects, and customizable essay topics. I offer a set of suggestions for approaching the study of DTC drug ads that is informed by my own experience doing so in bioethics courses. Ultimately, including this topic on your syllabus not only contributes to students’ philosophical skills and knowledge, but also helps them become better informed as citizens and potential “consumers” of health care. (shrink)

In this topical section, we highlight the next step of research on modeling aiming to contribute to the emerging literature that radically refrains from approaching modeling as a scientific endeavor. Modeling surpasses “doing science” because it is frequently incorporated into decision-making processes in politics and management, i.e., areas which are not solely epistemically oriented. We do not refer to the production of models in academia for abstract or imaginary applications in practical fields, but instead highlight the real entwinement of science (...) and policy and the real erosion of their boundaries. Models in decision making – due to their strong entwinement with policy and management – are utilized differently than models in science; they are employed for different purposes and with different constraints. We claim that “being a part of decision-making” implies that models are elements of a very particular situation, in which knowledge about the present and the future is limited but dependence of decisions on the future is distinct. Emphasis on the future indicates that decisions are made about actions that have severe and lasting consequences. In these specific situations, models enable not only the acquisition of knowledge (the primary goal of science) but also enable deciding upon actions that change the course of events. As a result, there are specific ways to construct effective models and justify their results. Although some studies have explored this topic, our understanding of how models contribute to decision making outside of science remains fragmentary. This topical section aims to fill this gap in research and formulate an agenda for additional and more systematic investigations in the field. (shrink)

This paper seeks to elucidate the distinctive nature of the rational impression on its own terms, asking precisely what it means for the Stoics to define logikē phantasia as an impression whose content is expressible in language. I argue first that impression, generically, is direct and reflexive awareness of the world, the way animals get information about their surroundings. Then, that the rational impression, specifically, is inherently conceptual, inferential, and linguistic, i.e. thick with propositional content, the way humans receive incoming (...) information from the world. When we suspend certain contemporary assumptions about propositional content, the textual evidence can be taken at face value to reveal why, for the Stoics, rational impressions are called thoughts (noēseis) and how the Stoics’ novel semantic entities called lekta (roughly, the meanings of our words) depend on rational impressions for their subsistence. (shrink)

Increasing empirical research on productivity supports the use of statistical or ‘rational’ discrimination in hiring. The practice is legal for features of job applicants not covered by human rights discrimination laws, such as being a smoker, residing in a particular neighbourhood or being a particular height. The practice appears largely morally innocuous under existing philosophical accounts of wrongful discrimination. This paper argues that lawful statistical discrimination treats job applicants in a way that may be considered degrading, and is likely to (...) constrain people’s freedoms in relation to employment, thus giving us reason for moral concern. (shrink)

From the point of view of a theorist in ethics, the interest in public policy usually centres on the policy outcomes. But this point of view does not take much account of the roles and practices through which public policies are enacted. What additional ethical focuses for the policy agent might these entail? I outline four features of policy making, centred on the agent's performance of their role in the process, that raise ethical issues. These features are: the nature of (...) the policy process; the definition of the public; the treatment of policy agents; and accounting for public policy decisions. Brief examples are used to illustrate the nature of the issues and support the conclusion that these present additional ethical focuses for agents in public policy roles. (shrink)

The text addresses the question of whether and to what extent a theorization of experience provides a basis for socio-critical theories. Following the ideology-critical diagnosis of an immediate involvement of lived experience in ideological constitutive structures, the argument is made that a critical and ›left‹ phenomenology in particular can address the manner in which experience as a ›mediated immediacy‹ manifests as a medial condition for ideological processes.

This paper rehabilitates the Stoic conception of blending from the ground up, by freeing the Stoic conception of body from three interpretive presuppositions. First, the twin hylomorphic presuppositions that where there is body there is matter, and that where there is reason or quality there is an incorporeal. Then, the atomistic presupposition that body is absolutely full and rigid, and the attendant notion that resistance (antitupia) must be ricochet. I argue that once we clear away these presuppositions about body, the (...) foundations of Stoic corporealism fall into place. Body is fundamental (not hylomorphic). The two fundamental principles (archai) are bodies: divine active reason (logos) and passive matter (hulē); and these two bodies are two, not matter and form all over again, nor actual and potential, but agent and patient. The independence of the two archai is no threat to the unity of the cosmos, however, because the Stoic theory of body allows for the complete coextension of the archai. The hylomorphic thinker rightly asks, what relation could be tighter than that of the wax and its shape? The Stoic replies: a causal relation, the interaction of agent and patient completely coextended in a through and through blend. (shrink)

Void is at the heart of Stoic metaphysics. As the incorporeal par excellence, being defined purely in terms of lacking body, it brings into sharp focus the Stoic commitment to non-existent Somethings. This article argues that Stoic void, far from rendering the Stoic system incoherent or merely ad hoc, in fact reflects a principled and coherent physicalism that sets the Stoics apart from their materialist predecessors and atomist neighbors.

The Stoics have often been compared to the earthborn Giants in the Battle of Gods and Giants in Plato’s Sophist, but with diverging opinions about the lessons they drew in reaction to Plato. At issue are questions about what in the Sophist the Stoics were reacting to, how the Stoics are like and unlike the Giants, the status of being for the Stoics, and the extent to which they were Platonizing with their incorporeals. With these open questions in mind, I (...) reexamine the Sophist from the Stoic perspective, finding eight distinct challenges that are likely to have been salient to the Stoics, and offer a new account of the Stoics as responding to these challenges with an innovative ontology that prises apart something from being to make room for what is not, and a sophisticated one-world metaphysics that grounds everything there is in two fundamental bodies. (shrink)

field: Issue 8 Embodying an Anti-Racist Architecture comprises essays, articles, podcasts, drawings, designs, the cover image, and a film. ‘This Call to Action' is a document borne from dialogue, and as such derives its power from the activism that collaboration and cooperation engender. -/- Asma Mehan, Carolina Lima, Faith Ng’eno, and Krzysztof Nawratek discuss white hegemony across different geopolitical and academic spaces, mindful of the nuances of using English as their shared yet borrowed language. -/- .

At the heart of the Stoic theory of modality is a strict commitment to bivalence, even for future contingents. A commitment to both future truth and contingency has often been thought paradoxical. This paper argues that the Stoic retreat from necessity is successful. it maintains that the Stoics recognized three distinct senses of necessity and possibility: logical, metaphysical and providential. Logical necessity consists of truths that are knowable a priori. Metaphysical necessity consists of truths that are knowable a posteriori, a (...) world order according to certain metaphysical principles and natures that god crafts within the constraints of matter. Finally, what is providentially necessary is what occurs according to the chain of fate, but only once it is in process or past. -/- The method of the paper is a close reading of Diogenes Laertius 7.75, adducing broad textual evidence along the way, to show that the Stoic theory of modality embraces Philonian possibility, both that which is capable of being true as a matter of logical consistency, and that which is possible according to the bare fitness of the entity. What differentiates the Stoics from Philo is their additional commitment to possibility as opportunity, resisting the collapse of determinism into necessity. (shrink)

Climate change assessments rely upon scenarios of socioeconomic developments to conceptualize alternative outcomes for global greenhouse gas emissions. These are used in conjunction with climate models to make projections of future climate. Specifically, the estimations of greenhouse gas emissions based on socioeconomic scenarios constrain climate models in their outcomes of temperatures, precipitation, etc. Traditionally, the fundamental logic of the socioeconomic scenarios—that is, the logic that makes them plausible—is developed and prioritized using methods that are very subjective. This introduces a fundamental (...) challenge for climate change assessment: The veracity of projections of future climate currently rests on subjective ground. We elaborate on these subjective aspects of scenarios in climate change research. We then consider an alternative method for developing scenarios, a systems dynamics approach called ‘Cross-Impact Balance’ (CIB) analysis. We discuss notions of ‘objective’ and ‘objectivity’ as criteria for distinguishing appropriate scenario methods for climate change research. We distinguish seven distinct meanings of ‘objective,’ and demonstrate that CIB analysis is more objective than traditional subjective approaches. However, we also consider criticisms concerning which of the seven meanings of ‘objective’ are appropriate for scenario work. Finally, we arrive at conclusions regarding which meanings of ‘objective’ and ‘objectivity’ are relevant for climate change research. Because scientific assessments uncover knowledge relevant to the responses of a real, independently existing climate system, this requires scenario methodologies employed in such studies to also uphold the seven meanings of ‘objective’ and ‘objectivity.’. (shrink)

The Stoics are famously committed to the thesis that only bodies are, and for this reason they are rightly called “corporealists.” They are also famously compared to Plato’s earthborn Giants in the Sophist, and rightly so given their steadfast commitment to body as being. But the Stoics also notoriously turn the tables on Plato and coopt his “dunamis proposal” that being is whatever can act or be acted upon to underwrite their commitment to body rather than shrink from it as (...) the Giants do. The substance of Stoic corporealism, however, has not been fully appreciated. This paper argues that Stoic corporealism goes beyond the dunamis proposal, which is simply an ontological criterion for being, to the metaphysics of body. This involves, first, an account of body as metaphysically simple and hence fundamental; second, an account of body as malleable and continuous, hence fit for blending (krasis di’ holou) and composition. In addition, the metaphysics of body involves a distinction between this composition relation seen in the cosmology, and the constitution relation by which the four-fold schema called the Stoic Categories proceeds, e.g. the relation between a statue and its clay, or a fist and its underlying hand. It has not been appreciated that the cosmology and the Categories are distinct — and complementary — explanatory enterprises, the one accounting for generation and unity, the other taking those individuals once generated, and giving a mereological analysis of their identity and persistence conditions, kinds, and qualities. The result is an elegant division of Plato’s labor from the Battle of Gods and Giants. On the one hand, the Stoics rehabilitate the crude cosmology of the Presocratics to deliver generation and unity in completely corporeal terms, and that work is found in their Physics. On the other hand, they reform the Giants and “dare to corporealize,” delivering all manner of predication (from identity to the virtues), and that work is found in Stoic Logic. Recognizing the distinctness of these explanatory enterprises helps dissolve scholarly puzzles, and harmonizes the Stoics with themselves. (shrink)

Der Beitrag betrachtet soziale Medien entlang Hannah Arendts Begriffsgerüst eines Erscheinungsraums und widmet sich der Frage, was für eine Form des Miteinanderseins sozialen Medien eignet und ob eine Pluralität im Sinne Arendts in sozialen Medien möglich ist. Arendt wird hier im Ausgang einer phänomenologischen Lesart weitergedacht, wodurch das intersubjektive ‚Zwischen‘ des Welthaften in den Fokus gerät. Zunächst nimmt sich der Beitrag des Weltbegriffs Arendts an, der, so die Argumentation, erst in Anlehnung an ihre Philosophie des Erscheinens und ihrer Intersubjektivitätstheorie zu (...) seiner vollen Reife gelangt. Anschließend wird die Tendenz zur Selbstdarstellung in sozialen Medien daraufhin geprüft, ob sie einen pluralen Erscheinungsraum sozialer Medien von Beginn an verschließt. Es wird die These vertreten, dass soziale Medien zwar die Möglichkeit eines pluralen Erscheinungsraums implizieren, ihre Aktualität und Infrastruktur jedoch oftmals das In-Erscheinung-Treten des Arendtschen ‚Wer-einer-ist‘ verdecken und somit das virtuelle Handeln und Sprechen von Personen der stetigen Gefahr von Anonymität ausgesetzt sind, was in der Folge die Versperrung einer gelebten Pluralität in öffentlichen Erscheinungsräumen bedeuten würde. (shrink)

The accumulation of potentially toxic elements (PTEs) has raised public awareness due to harmful contamination to both human and marine creatures. This study was designed to determine the concentration of copper (Cu), zinc (Zn), cadmium (Cd), and nickel (Ni) in the intestine, kidney, muscle, gill, and liver tissues of local commercial edible fish, fourfinger threadfin (Eleutheronema tetradactylum), and black pomfret (Parastromateus niger) collected from Morib (M) and Kuala Selangor (KS). Among the studied PTEs, Cu and Zn were essential elements to (...) regulate body metabolism with certain dosages required while Cd and Ni were considered as non-essential elements that posed chronic and carcinogenic risk. The concentration of PTEs in fish tissue samples was analyzed using flame atomic absorption spectrometry (F-AAS). By comparing the concentration of PTEs in fish tissues as a bioindicator, the environmental risk of Morib was more serious than Kuala Selangor because both fish species collected from Morib resulted in a higher PTEs concentration. For an average 62 kg adult with a fish ingestion rate (FIR) of 0.16 kg/person/day in Malaysia, the estimated weekly intake (EWI) of Cd from the consumption of E. tetradactylum (M: 0.0135 mg/kg; KS: 0.0134 mg/kg) and P. niger (M: 0.0140 mg/kg; KS: 0.0132 mg/kg) had exceeded the provisional tolerable weekly intake (Cd: 0.007 mg/kg) established by the Joint FAO/WHO Expert Committee on Food Additives (JECFA) and oral reference dose (ORD) values of Cd (0.001 mg/kg/day) as provided by the United States Environmental Protection Agency (USEPA) regional screening level, thus it posed chronic risks for daily basis consumption. Besides, the value of the carcinogenic risk of Cd (0.7−3 to 0.8−3) and Ni (0.5−3 to 0.6−3) were in between the acceptable range (10−6 to 10−4) of the health index that indicates a relatively low possibility cancer occurrence to the consumers in both Morib and Kuala Selangor. This study recommended FIR to be 0.80 kg/person/day to reduce the possibility of posing chronic and carcinogenic risks while at the same time obtaining the essential nutrients from the fish. (shrink)

Tropical grasses are fast growing and often used for phytoremediation. Three different types of tropical grasses: Vetiver (V. zizanoides), Imperata (I. cylindrical) and Pennisetum (P. purpureum) tested in different growth media of spiked heavy metal contents under the glasshouse environment of RimbaIlmu for 60-day. The growth performance, metals tolerance and phyto-assessment of cadmium (Cd), lead (Pb), zinc (Zn) and copper (Cu) in shoots and roots were assessed using flame atomic absorption spectrometry (FAAS).Tolerance index (TI), translocation factor (TF), biological accumulation coefficient (...) (BAC), biological concentration factor (BCF), and uptake efficacy was applied to evaluate the metal translocation ability among all three grasses. All three grasses showed significantly higher (p<0.05) accumulation of the total heavy metals in the spiked metal treatment compared with other tested treatments. Vetiver accumulated remarkably higher total concentration of Cd (93.08 ± 3.81 mg/kg) and Zn (1284.00 ± 234.83 mg/kg) than both Imperata and Pennisetum. The overall trend of heavy metals accumulation for all three grasses followed the order of Zn>Pb>Cd>Cu. The results of study suggested that both Imperata and Pennisetum are commendable and potential phytoextractors for Zn as well as phytostabilizers for Cd, Pb and Cu, respectively. (shrink)

The growth response, metal tolerance and phytoaccumulation properties of water spinach (Ipomoea aquatica) and okra (Abelmoschus esculentus) were assessed under different contaminated spiked metals: control, 50 mg Pb/kg soil, 50 mg Zn/kg soil and 50 mg Cu/kg soil. The availability of Pb, Zn and Cu metals in both soil and plants were detected using flame atomic absorption spectrometry. The concentration and accumulation of heavy metals from soil to roots and shoots (edible parts) were evaluated in terms of translocation factor, accumulation (...) factor and tolerance index. Okra recorded the highest accumulation of Pb (80.20 mg/kg) in its root followed by Zn in roots (35.70 mg/kg) and shoots (34.80 mg/kg) of water spinach, respectively. Different accumulation trends were observed with, Pb > Zn > Cu in okra and Zn > Pb > Cu in water spinach. Significant differences (p < 0.01) of Pb, Zn and Cu accumulation were found in both water spinach and okra cultivated among tested treatments. However, only the accumulation of Pb metal in the shoots of water spinach and okra exceeded the maximum permissible levels of the national Malaysian Food Act 1983 and Food Regulations 1985 ([2006]) as well as the international Codex Alimentarius Commission limits. This study has shown that both water spinach and okra have good potential as Pb and Zn phytoremediators. (shrink)

Three different types of low cost soil amendments, namely, EDTA, elemental S and N-fertilizer, were investigated with Vetiver grass, Vetiveria zizanioides (Linn.) Nash growing under highly mixed Cd–Pb contamination conditions. A significant increase (p < 0.05) in Cd and Pb accumulation were recorded in the shoots of all EDTA and N-fertilizer assisted treatments. The accumulation of Cd in 25 mmol EDTA/kg soil and 300 mmol N/kg soil showed relatively higher translocation factor (1.72 and 2.15) and percentage metal efficacy (63.25 % (...) and 68.22 %), respectively, compared to other treatments. However, it was observed that the increased application of elemental S may inhibit the availability of Pb translocation from soil-to-root and root-to-shoot. The study suggests that viable application of 25 mmol EDTA/kg, 300 mmol N/kg and 20 mmol S/kg soil have the potential to be used for soil amendment with Vetiver grass growing under contaminated mixed Cd–Pb soil conditions. (shrink)

Plastic waste is a significant environmental problem for almost all countries; therefore, protecting the environment from the problem is crucial. The most sensible solution to these problems is substituting the natural aggregates with substantial plastic waste in various building materials. This study aimed to optimise the mixed design ratio of cement brick containing plastic waste as aggregate replacement. Plastic cement brick mixtures were prepared by the incorporation of four different types of plastic waste such as polyethylene terephthalate (PET), high-density polyethylene, (...) low-density polyethylene and polypropylene into cement bricks with different cement contents (150, 300 and 450 g) and plastic replacement percentages (0, 3 and 6%). Compressive strength and water absorption of the plastic cement bricks were analysed using a statistical model through the response surface methodology. It revealed the optimum cement brick mixed design is C3-1% PET with the compressive strength of 27.50 MPa and water absorption of 1.16%. The optimised plastic cement brick also satisfied the general ASTM C62-17 requirements for building bricks despite the higher porosity observed by the scanning electron microscopy. The results from Fourier transform infrared spectroscopy analysis also showed that the addition of the plastic waste into cement brick was unlikely to modify the chemical compound within the cement brick mixtures. Thus, the proposed mathematical model can predict the required hardened properties of plastic cement bricks and could lead to greater utilisation of plastic waste in building materials. (shrink)

Various types of plant species have been extensively used for heavy metals phyto-remediation without taking into consideration its tolerance threshold. In this study, Vetiver grass, Vetiveria zizanioides (Linn.) Nash was evaluated under five different sets of contaminated spiked cadmium (5Cd, 10Cd, 50Cd, 100Cd and 150Cd mg/kg) and lead (50Pb, 100Pb, 200Pb, 400Pb and 800Pb mg/kg) concentration levels in soil. The growth performance, metal tolerance and phyto-assessment of Cd and Pb in the roots and tillers were assessed using flame atomic absorption (...) spectrometry (FAAS). Tolerance index (TI), translocation factor (TF), biological transfer factor (BTF), biological accumulation coefficient (BAC) and metal uptake efficacy were used to determine the Cd and Pb translocation capability in Vetiver grass. Significantly higher (p<0.05) accumulation of Cd and Pb was recorded in the roots of all spiked treatments. Furthermore, strong and significantly positive correlations were exhibited between the increased levels of spiked heavy metal concentrations with both Cd (r=0.975) and Pb (r=0.952) accumulations. The results of this study showed Vetiver grass as an effective phyto-stabilizer for both Cd and Pb. Nevertheless, the growth of Vetiver grass was restricted when the tolerance threshold of 100 mg/kg (dry weight basis) Cd was exceeded in the contaminated soil. (shrink)

This paper investigates the local implementation of Malaysian public GAP standard called MyGAP by examining its effectiveness in raising the awareness and improving the pesticide use practices of participant smallscale farmers toward better food safety and quality assurance. For this objective, 19 MyGAP certified and 57 uncertified durian farms in the state of Pahang, Malaysia were surveyed. The research found that certified farm managers have a much better understanding of the basic intent of the policy than uncertified farms, reflecting the (...) individually oriented interests and motivations of participant farmers in the national scheme. Their interests in and assessment of the merits of the scheme are found to concentrate in economic realms rather than in the original policy goal of food safety and quality assurance. As regards pesticide use practices, certified farms showed a much better performance than uncertified farms in record keeping and pesticide use and management. There remains a question, however, whether it is due to the farming practices improved through MyGAP adoption or due to the participation of farms already well-performing prior to MyGAP adoption. (shrink)

Over the years, ethylene-diamine-tetra-acetate (EDTA) has been widely used for many purposes. However, there are inadequate phytoassessment studies conducted using EDTA in Vetiver grass. Hence, this study evaluates the phytoassessment (growth performance, accumulation trends, and proficiency of metal uptake) of Vetiver grass, Vetiveria zizanioides (Linn.) Nash in both single and mixed heavy metal (Cd, Pb, Cu, and Zn)—disodium EDTA-enhanced contaminated soil. The plant growth, metal accumulation, and overall efficiency of metal uptake by different plant parts (lower root, upper root, lower (...) tiller, and upper tiller) were thoroughly examined. The relative growth performance, metal tolerance, and phytoassessment of heavy metal in roots and tillers of Vetiver grass were examined. Metals in plants were measured using the flame atomic absorption spectrometry (F-AAS) after acid digestion. The root-tiller (R/T) ratio, biological concentration factor (BCF), biological accumulation coefficient (BAC), tolerance index (TI), translocation factor (TF), and metal uptake efficacy were used to estimate the potential of metal accumulation and translocation in Vetiver grass. All accumulation of heavy metals were significantly higher (p < 0.05) in both lower and upper roots and tillers of Vetiver grass for Cd + Pb + Cu + Zn + EDTA treatments as compared with the control. The single Zn + EDTA treatment accumulated the highest overall total amount of Zn (8068 ± 407 mg/kg) while the highest accumulation for Cu (1977 ± 293 mg/kg) and Pb (1096 ± 75 mg/kg) were recorded in the mixed Cd + Pb + Cu + Zn + EDTA treatment, respectively. Generally, the overall heavy metal accumulation trends of Vetiver grass were in the order of Zn >>> Cu > Pb >> Cd for all treatments. Furthermore, both upper roots and tillers of Vetiver grass recorded high tendency of accumulation for appreciably greater amounts of all heavy metals, regardless of single and/or mixed metal treatments. Thus, Vetiver grass can be recommended as a potential phytoextractor for all types of heavy metals, whereby its tillers will act as the sink for heavy metal accumulation in the presence of EDTA for all treatments. (shrink)

Sources of soil contamination can exist in various types of conditions including in the form of semifluids. In this study, 3 different types of tropical plants, Acacia (Acacia mangium Willd), Mucuna (Mucuna bracteata DC. ex Kurz) and Vetiver (Vetiveria zizanioides L. Nash), were tested under different levels of soil-leachate conditions. The relative growth rate, metal tolerance, and phytoassessment of cadmium (Cd) and lead (Pb) accumulation in the roots and shoots were determined using flame atomic absorption spectrometry. Tolerance index, translocation factor, (...) metal accumulation ratio, and percentage metal efficacy were applied to assess the metal translocation ability among all the 3 types of plants. Significantly higher (P < .05) accumulation of Cd and Pb was exhibited in the roots and shoots of all 3 plants growing under the soil-leachate conditions. However, negative growth performance and plant withering were observed in both Acacia and Mucuna with increased application of higher soil-leachate levels. Vetiver accumulated remarkably higher total concentration of Cd (116.16-141.51 mg/kg) and Pb (156.37-365.27 mg/kg) compared with both Acacia and Mucuna. The overall accumulation trend of Cd and Pb in the 3 plants growing under the soil-leachate conditions was in the order of Vetiver > Acacia > Mucuna. The findings of the study suggest that Vetiver has great potential as Cd and Pb phytoremediator in soil-leachate conditions. (shrink)

"I have a tree, which grows here in my close, / That mine own use invites me to cut down, / And shortly I must fell it" (Shakespeare 2001, 168)—Timon's lament, which in Shakespeare's rendition occurs shortly before its utterer's demise "upon the beached verge of the salt flood" (2001, 168) beyond the perimeter of Athens, is an indictment of the nature that Timon finds unable to escape. Having given away his wealth in misguided generosity to a host of parasitic (...) sycophants, Timon turns misanthropic when his "friends" reject his requests for help in kind to repay his debts, eventually exiling himself from the city with the intent of sustaining himself on nothing but water and roots. Yet he soon finds that removing .. (shrink)