Movatterモバイル変換

Direct download   Export citation   Bookmark  

Plant cells are caged within a distended polymeric network (the cell wall), which enlarges by a process of stress relaxation and slippage (creep) of the polysaccharides that make up the load‐bearing network of the wall. Protein mediators of wall creep have recently been isolated and characterized. These proteins, called expansins, appear to disrupt the noncovalent adhesion of matrix polysaccharides to cellulose microfibrils, thereby permitting turgor‐driven wall enlargement. Expansin activity is specifically expressed in the growing tissues of dicotyledons and monocotyledons. (...) Sequence analysis of cDNAs indicates that expansins are novel proteins, without previously known functional motifs. Comparison of expansin cDNAs from cucumber, pea, Arabidopsis and rice shows that the proteins are highly conserved in size and amino acid sequence. Phylogenetic analysis of expansin sequences suggests that this multigene family diverged before the evolution of angiosperms. Speculation is presented about the role of this gene family inplant development and evolution. (shrink)

Direct download(2 more)   Export citation   Bookmark   3 citations  

The Uddevalla Volvoplant represents a different paradigm for automotive assembly. In parallel-flow work, self-managed work groups assemble entire automobiles with comparable productivity as conventional series-flow assembly lines. From the perspective of the demand-control model, operators at the Uddevallaplant have low physical and timing demands, high psychological demands because of increased duties and high-decision latitude due to varied and complex skills utilized, the two latter characterizing active work. Operators at standard assembly lines have higher levels of physical (...) and timing demands, lower levels of psychological demand, and lower control, characterizing high-strain work. Active work is related to lower incidence of heart disease than high-strain work. (shrink)

No categories

Direct download   Export citation   Bookmark  

The defense of plants against herbivores and pathogens involves the participation of an enormous range of different metabolites, some of which act directly as defensive weapons against enemies (toxins or deterrents) and some of which act as components of the complex internal signaling network that insures that defense is timed to enemy attack. Recent work reveals a surprising trend: The same compounds may act as both weapons and signals of defense. For example, two groups of well‐studied defensive weapons, glucosinolates and (...) benzoxazinoids, trigger the accumulation of the protective polysaccharide callose as a barrier against aphids and pathogens. In the other direction, several hormones acting in defense signaling (and their precursors and products) exhibit activity as weapons against pathogens. Knowing which compounds are defensive weapons, which are defensive signals and which are both is vital for understanding the functioning ofplant defense systems. (shrink)

Direct download(2 more)   Export citation   Bookmark  

Fruit d'un séminaire de deux années, cet ouvrage vient après toute une série de colloques et travaux collectifs sur les diverses formes et fonctions de la correspondance, littéraire surtout, ordinaire de plus en plus. Mais il ne s'agit pas ici de la réunion hétéroclite de contributions circonstancielles, une problématique claire a organisé la réflexion et le volume. Ce qui n'exclut pas quelques contradictions dont nous verrons plus loin l'intérêt. Le débat se déploie autour de la quest...

No categories

Direct download(6 more)   Export citation   Bookmark  

Steroid hormones are signaling molecules important for normal growth, development and differentiation of multicellular organisms. Brassinosteroids (BRs) are a class of polyhydroxylated steroids that are necessary forplant development. Molecular genetic studies in Arabidopsis thaliana have led to the cloning and characterization of the BR receptor, BRI1, which is a transmembrane receptor serine/threonine kinase. The extracellular domain of BRI1, which is composed mainly of leucine‐rich repeats, can confer BR responsivity to heterologous cells and is required for BR binding. Although (...) downstream components of BR action are mostly unknown, multiple genes whose expression are regulated by BRs have been identified and suggest mechanisms by which BRs affect cell elongation and division. BioEssays 23:1028–1036, 2001. © 2001 John Wiley & Sons, Inc. (shrink)

Direct download(2 more)   Export citation   Bookmark  

Eachplant can be recognized by its general shape. Nevertheless, this physiognomy is the result of a very precise structure that expresses the existence of a strong organization. The architecture of aplant depends on the nature and relative arrangement of each of its parts; it is at any given time the result of an equilibrium between endogenous growth processes and the constraints exerted by the environment. Architectural studies have been carried out for some twenty years and have (...) led to the definition of several concepts that provide a powerful tool for studyingplant form. The results obtained in this field show that the architecture of aplant can be summarized by a small number of elementary structures: internode, growth unit, axis, architectural model,... In the course of ontogenesis, these structures are repeated and reveal several levels of organization that seem to be only different stages of a common process of growth and transformation. (shrink)

No categories

Direct download(2 more)   Export citation   Bookmark   2 citations  

Direct download(2 more)   Export citation   Bookmark  

A lot of scholarly attention has been given to Aristotle’s account of how and why animals are capable of moving themselves. But no one has focused on the question, whether self-change is possible in plants on Aristotle’s account. I first give some context and explain why this topic is worth exploring. I then turn to Aristotle’s conditions for self-change given in Physics VIII.4, where he argues that the natural motion of the elements does not count as self-motion. I apply those (...) conditions to natural change in plants. Then I explore the reasons for and consequences of Aristotle’s argument that plants are incapable of sensation. I argue that for Aristotle plants cannot possess the directing faculties for self-change, namely, desire and phantasia. My goal is to show why growth, metabolism, and reproduction in plants would not count as self-change for Aristotle, despite many of these natural changes appearing as autonomous as the analogous changes in animals. This sheds light on how, for Aristotle, self-change differs from natural change. (shrink)

Direct download(3 more)   Export citation   Bookmark   4 citations  

No categories

Export citation   Bookmark  

Bedouin Ethnobotany:Plant Concepts and Uses in a Desert Pastoral World. By James P. Mandaville. Tucson: University of Arizona Press, 2011. Pp. xv + 397. $55.

Direct download(3 more)   Export citation   Bookmark  

A major programme of irrigated rice extension in the Middle Senegal River Valley has further limited the river’s natural flooding in the floodplain (Waalo), initially reduced by drought. We conducted a transdisciplinary (TD) and gendered study in the region to explore links between agricultural biodiversity and family diets using a social analysis of women’s practices. The results showed how rice expansion impacts local agrobiodiversity, diet quality and the cultural way of life. Disappearance of the singular agropastoral and fishing system of (...) the Senegal River Valley is profoundly modifying the landscape, limiting wooded riverine settings, and is undermining the traditional diversified flood-recession cropping system in the Waalo. This is causing an overconsumption of rice by reducing alternative food sources, such as sorghum, vegetables and animal products (fish, milk and meat). In particular, flood-recession sorghums are in danger of disappearing, yet they are more nutritious than rice and now sell for twice as much, or more. The way of life is being disrupted, notably sociabilities previously based on territorial complementarities, and women are disadvantaged in terms of recognition and added workload. Women’s groups have launched collective irrigated gardens, organic or not, only supported by the local NGO, but any surplus is hardly ever sold on the weekly markets in the neighbourhood. Moreover, this diet imbalance increases nutritional risk factors for health, such as vitamin and iron deficiencies, especially for women, hypertension and diabetes. We argue that, firstly, gendered TD experiences are relevant for documenting women’s activities in order for them to gain political support and, secondly, that targeting women’s care tasks gives more value and impact to TD research results. (shrink)

Direct download(4 more)   Export citation   Bookmark   1 citation  

The aim of this paper is to examine Francis Glisson’s theory of perception insofar as it concerns the lowest class of living beings: plants. Plants have a special status, they are located between inanimate objects and animals in the hierarchy of being. Unlike the former, they are organic, but unlike the latter they are unconscious. Peculiar to Glisson is the claim that vegetative organization requires self-referential perception. In light of traditional epistemology, this claim may sound puzzling, because we tend to (...) associate self-representation with conscious thought. In order to make sense of Glisson’s self-referential, but unconscious perceptions, the first part of the paper investigates the role of perception in the vegetative process of organization. The second part is a comparative study on two ways of drawing the distinction between unconscious perceptions and conscious sensations. The first one is the Cartesian approach as outlined by Antoine Arnauld in the early 1680s, the second one is Glisson’s theory. In light of the comparison it is argued that Glisson’s is a higher order theory of sensation in which the phenomenon of consciousness requires the delimitation of the all-inclusive, self-referential nature of perception. (shrink)

Direct download   Export citation   Bookmark   2 citations  

No categories

Direct download   Export citation   Bookmark  

Various historical sources from the Renaissance--including transcripts of trials for witchcraft, writings on demonology and textbooks of pharmaceutical botany--describe vegetal ointments prepared by women accused of witchcraft and endowed with marked psychoactive properties. Here, we examine the botanical composition and the possible pharmacological actions of these ointments. The results of our study suggest that recipes for narcotic and mind-altering salves were known to Renaissance folk healers, and were in part distinct from homologous preparations of educated medicine. In addition, our study (...) reveals an unexpected connection of these vegetal psychotropes with archaic chtonic beliefs, confirming the tight association between rituals and cults entered on the Underworld and the image of the Medieval witch. (shrink)

Direct download   Export citation   Bookmark  

The first robot homicide was committed in 1981, according to my files. I have a yellowed clipping dated 12/9/81 from the Philadelphia Inquirer--not the National Enquirer--with the headline: Robot killed repairman, Japan reports The story was an anti-climax: at the Kawasaki Heavy Industriesplant in Akashi, a malfunctioning robotic arm pushed a repairman against a gearwheel-milling machine, crushing him to death. The repairman had failed to follow proper instructions for shutting down the arm before entering the workspace. Why, indeed, (...) had this industrial accident in Japan been reported in a Philadelphia newspaper? Every day somewhere in the world a human worker is killed by one machine or another. The difference, of course, was that in the public imagination at least, this was no ordinary machine; this was a robot, a machine that might have a mind, might have evil intentions, might be capable not just of homicide but of murder. (shrink)

Direct download   Export citation   Bookmark   11 citations  

My purpose in this book is to reach a more general audience than I have been able to reach through my publications in academic journals, such as Environmental Ethics. The strategy of the book is to use a lyrical personal narrative to motivate chapters advancing the case for the intelligence of all living things, our kinship with, similarities to, and dependency upon other life forms, and an ethic of respect for life. It includes a critique of biocidal aspects of our (...) culture, especially as it pertains to land use. The narrative chapters describe the process through which I became aware of the depth and pervasiveness of the environmental crisis and what I have learned through three decades of effort at ecological restoration of twenty-one acres of ruined land. The narrative chapters are used to motivate scientific descriptions of, and philosophical reflection on, various domains of life: the intelligence of insects, the analogy between soil ecosystems and the human microbiome, the inner lives of animals, and the intelligence of plants, as well as the human dependency upon healthy ecosystems—both material (through ecosystem services) and spiritual. The book calls for a radical reorientation of our attitudes and reforms in the institutions governing land use. (shrink)

No categories

Export citation   Bookmark  

Comparing food taboos across 78 cultures, this paper demonstrates that meat, though a prized food, is also the principal target of proscriptions. Reviewing existing explanations of taboos, we find that both functionalist and symbolic approaches fail to account for meat's cross-cultural centrality and do not reflect experience-near aspects of food taboos, principal among which is disgust. Adopting an evolutionary approach to the mind, this paper presents an alternative to existing explanations of food taboos. Consistent with the attendant risk of pathogen (...) transmission, meat has special salience as a stimulus for humans, as animal products are stronger elicitors of disgust and aversion thanplant products. We identify three psychosocial processes, socially-mediated ingestive conditioning, egocentric empathy, and normative moralization, each of which likely plays a role in transforming individual disgust responses and conditioned food aversions into institutionalized food taboos. (shrink)

No categories

Direct download(5 more)   Export citation   Bookmark   24 citations  

Third World countries are not pursuing scientific and technological policies leading to the development of strong biotechnological industries. Their leaders have been misled into believing that modern biotechnological industries can be built in the absence of strong, intellectually aggressive, and original scientific schools. Hence, they do not strive to reform their universities, which have weak commitments to research, and do not see the importance of having research hospitals able to generate excellent and relevant clinical investigation. These strategic gaps in scientific (...) capability, the lack of governmental and corporate research funding, and the dependent nature of the chemical and pharmaceutical industries of the Third World make the development of competitive biotechnology a highly improbable event. If the present trend continues, underdeveloped countries will continue to be testing grounds for biological materials and agents, sources of valuable germplasm, and markets for high-value-added products and processes invented and manufactured in the First World. This article recommends that the international organizations collaborate in the urgent task of educating the Third World political leaders and administrators in the real problems connected with the generation of high technology. (shrink)

Direct download(3 more)   Export citation   Bookmark   2 citations  

The Swiss natural historian Johann Amman came to Russia in 1733 to take a position as professor of botany and natural history at the St. Petersburg Academy of Sciences. As part of the job, he corresponded, and exchangedplant specimens, with the English merchant collector Peter Collinson in London, and the Swedish scholar Carolus Linnaeus, among others. After briefly reviewing Amman's correspondence with these scholars and the growing commerce in exotic specimens of natural history, I explore how encyclopedias came (...) to facilitate the exchange of zoological specimens in particular. I argue that, during the seventeenth century, a new genre of zoological encyclopedias appeared on the scene whose design was particularly well-suited for the purposes of identification, a key practice in long-distance exchanges. (shrink)

Direct download(7 more)   Export citation   Bookmark   5 citations  

Marriages come in a very wide variety: if the reports of anthropologists and historians are to be believed, an extraordinarily wide variety. This includes some of the more unusual forms, including marriage to the dead; to the gods; and even to plants. This does suggest that few proposed marriage relationships would require 'redefining marriage': but on the other hand, it makes giving a general theory of marriage challenging. So one issue we should face is how accepting we should be of (...) the reports: to what extent reported 'marriages' really are marriages. This paper defends the view that almost all of these reported marriages are in fact marriages, and suggests some theoretical approaches that may be generous enough to account for this. (shrink)

Direct download(3 more)   Export citation   Bookmark   1 citation  

Urban agriculture is a promising avenue for food system change; however, projects often struggle with a lack of volunteers—limiting both their immediate goals and the broader movement-building to which many alternative food initiatives (AFIs) aspire. In this paper, I adopt a case study approach focusing on Farm X, an urban farm with a strong volunteer culture located in Tāmaki-Makaurau Auckland, New Zealand’s largest city. Drawing on a significant period of researcher participation and 11 in-depth interviews with volunteers and project coordinators, (...) I first contextualise and explore the history of Farm X, then offer themes to describe key factors which help or hinder their volunteer engagement. Engagement is helped by strong leadership, learning by doing, socialising around plants, and contributing to a movement. Conversely, engagement is hindered by time scarcity, economic hurdles, and struggles over direction. Drawing on McClintock’s (Local Environ 19(2): 147–171, 2014, 10.1080/13549839.2012.752797) insights into the hybrid and contradictory nature of urban agriculture as a tool for social change, the paper continues with a discussion of two important trade-offs involved in both farm management and the movement building promoted by Farm X: focused leadership verses volunteer agency; and asking more verses less of volunteers. Finally, I suggest several avenues that may be useful for other urban agriculture projects interested in movement building. (shrink)

Direct download(3 more)   Export citation   Bookmark  

This paper argues that aplant together with the symbiotic fungus attached to its roots, a mycorrhizal collective, is an evolutionary individual, and further, that mycorrhizal individuality has important implications for evolutionary theory. Theoretical individuation is defended and then employed to show that mycorrhizal collectives function as interactors according to David Hull’s replicator-interactor model of evolution by natural selection, and because they have the potential to engage in pseudo-vertical transmission, mycorrhizal collectives also function as Darwinian individuals, according to Peter (...) Godfrey-Smith’s Darwinian Populations model of evolution by natural selection. Mycorrhizae in nature usually connect the roots of multiple plants, so mycorrhizal individuality entails the existence of overlapping evolutionary individuals, and because the potential to engage in pseudo-vertical transmission comes in degrees, it follows that these overlapping evolutionary individuals also come in degrees. I suggest here that the degree of evolutionary individuality in a symbiotic collective corresponds to its probability of reproducing with vertical or pseudo-vertical transmission. This probability constitutes a fourth parameter of graded Darwinian individuality in collective reproducers and warrants an update to Godfrey-Smith’s 3D model. (shrink)

No categories

Direct download(4 more)   Export citation   Bookmark   3 citations  

This article considers the dispute between moral economy and rational peasant theories of agrarian societies in application to problems of collective action. The moral-economy theory holds that traditional peasant society is organized cooperatively through shared moral values and communal institutions; while the rational-peasant theory maintains that peasant society shows the mark of rational individual calculation, leading to free-rider problems that undermine successful collective action. This article offers an abstract model of a traditional village and assesses the applicability of recent qualifications (...) of the collective action argument to this model. It will emerge that the social characteristics of the traditional village embody features that facilitate collective action by rational peasants. (shrink)

Direct download(3 more)   Export citation   Bookmark  

Since the early nineteenth century a membrane or wall has been central to the cell’s identity as the elementary unit of life. Yet the literally and metaphorically marginal status of the cell membrane made it the site of clashes over the definition of life and the proper way to study it. In this article I show how the modern cell membrane was conceived of by analogy to the first “artificial cell,” invented in 1864 by the chemist Moritz Traube (1826–1894), and (...) reimagined by theplant physiologist Wilhelm Pfeffer (1845–1920) as a precision osmometer. Pfeffer’s artificial cell osmometer became the conceptual and empirical basis for the law of dilute solutions in physical chemistry, but his use of an artificial analogue to theorize the existence of the plasma membrane as distinct from the cell wall prompted debate over whether biology ought to be more closely unified with the physical sciences, or whether it must remain independent as the science of life. By examining how the histories ofplant physiology and physical chemistry intertwined through the artificial cell, I argue that modern biology relocated vitality from protoplasmic living matter to nonliving chemical substances—or, in broader cultural terms, that the disenchantment of life was accompanied by the (re)enchantment of ordinary matter. (shrink)

Direct download(2 more)   Export citation   Bookmark   3 citations  

Type II DNA topoisomerases (Topo II) are essential enzymes implicated in key nuclear processes. The recent discovery of a novel kind of Topo II (DNA topoisomerase VI) in Archaea led to a division of these enzymes into two non‐homologous families, (Topo IIA and Topo IIB) and to the identification of the eukaryotic protein that initiates meiotic recombination, Spo11. In the present report, we have updated the distribution of all Topo II in the three domains of life by a phylogenomic approach. (...) Both families exhibit an atypical distribution by comparison with other informational proteins, with predominance of Topo IIA in Bacteria, Eukarya and viruses, and Topo IIB in Archaea. However, plants and some Archaea contain Topo II from both families. We confront this atypical distribution with current hypotheses on the evolution of the three domains of life and origin of DNA genomes. BioEssays 25:232–242, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

Direct download(2 more)   Export citation   Bookmark  

Sagoff [Journal of Agricultural and Environmental Ethics 18 (2005), 215–236] argues, against growing empirical evidence, that major environmental impacts of non-native species are unproven. However, many such impacts, including extinctions of both island and continental species, have both been demonstrated and judged by the public to be harmful. Although more public attention has been focused on non-native animals than non-native plants, the latter more often cause ecosystem-wide impacts. Increased regulation of introduction of non-native species is, therefore, warranted, and, contra Sagoff’s (...) assertions, invasion biologists have recently developed methods that greatly aid prediction of which introduced species will harm the environment and thus enable more efficient regulation. The fact that introduced species may increase local biodiversity in certain instances has not been shown to result in desired changes in ecosystem function. In other locales, they decrease biodiversity, as they do globally. (shrink)

Direct download(4 more)   Export citation   Bookmark   12 citations  

According to the traditional view of Empedocles' cosmic cycle, there are two creations of plants and animals, one under the dominion of increasing Strife and one under the dominion of increasing Love. At the point at which Strife holds complete sway the four elements are completely separated and all life is destroyed; at the point at which Love is completely dominant there is also a destruction of the biological world, this time because the elements are blended into a perfectly homogeneous (...) mixture. This interpretation of the cosmic cycle, which has prevailed almost since it was developed by Friedrich Panzerbieter and seconded by authority of Eduard Zeller was challenged by Paul Tannery and then by H. von Arnim . Long after these essentially programmatic critiques, three independent studies published in 1965 by Jean Bollack, Uvo Hölscher and Friedrich Solmsen mounted a vigorous challenge to the received view. However, in a detailed monograph devoted to Empedocles' cosmic cycle, Denis O'Brien brought to bear an impressive array of scholarly evidence and critical acumen in support of the traditional view . Several challenges to the traditional view have appeared since O'Brien's book, of which the most significant is that of A. A. Long, who, while criticizing attempts of some opponents of the traditional view, produced some novel and interesting arguments against it. Although the traditional view continues to enjoy the support of authorities such as Jonathan Barnes and M. R. Wright, there is a decided shift in favour of revisionary views. Nevertheless recent advocates of a revisionary interpretation do not provide detailed refutations of the traditional view; Long's arguments remain the strongest objections to the traditional view, and they have never been refuted. Will they stand up to scrutiny? (shrink)

Direct download(3 more)   Export citation   Bookmark   7 citations  

While 3/11 has altered energy policies around the world, insufficient attention has focused on reactions from local nuclear powerplant host communities and their neighbors throughout Japan. Using site visits to such towns, interviews with relevant actors, and secondary and tertiary literature, this article investigates the community crisis management strategies of two types of cities, towns, and villages: those which have nuclear plants directly in their backyards and neighboring cities further away (within a 30 mile radius). Responses to the (...) disaster have varied with distance to nuclear facilities but in a way contrary to the standard theories based on the concept of the . Officials in communities directly proximal to nuclear power plants by and large remain supportive of Japan's nuclear power program, while those in cities and towns at a distance (along with much of the general public) have displayed strong opposition to the pre 3/11 status quo. Using qualitative data, this article underscores how national energy and crisis response policies rest strongly on the political economy, experiences of, and decisions made at the subnational level. (shrink)

Direct download(8 more)   Export citation   Bookmark  

The aim of this paper is to determine whether the present generation should preserve non-human living things for future generations, even if in the future all the contributions these organisms currently make to human survival in decent conditions were performed by adequate technology and future people's preferences were satisfied by this state of affairs. The paper argues it would be wrong to leave a world without non-human living plants, animals and other organisms to future generations, because such a world would (...) fail to secure one of the conditions of future people’s autonomy, that is, availability of adequate options. Building upon Joseph Raz’s account of autonomy, the paper shows that the presence of non-human living organisms is part of an adequate range of options insofar as, to be adequate, options must meet a test of variety. According to Raz, options pass this test if they enable human agents to exercise a set of physical, affective, imaginative and cognitive capacities humans normally have an innate drive to exercise. The paper discusses empirical findings as well as psychological theories that provide support to the hypothesis that interactions with non-human living organisms enable human beings to develop and exercise these capacities by shaping these capacities in a special way, different from the way interactions with other environments do. (shrink)

Direct download(2 more)   Export citation   Bookmark   3 citations  

The paper begins with a brief analysis of the concepts of environmental justice and environmental racism and classism. The authors argue that pollution- and environment-related decision-making is prima facie wrong whenever it results in inequitable treatment of individuals on the basis of race or socio-economic status. The essay next surveys the history of the doctrine of free informed consent and argues that the consent of those affected is necessary for ensuring the fairness of decision-making for siting hazardous facilities. The paper (...) also points out that equal opportunity to environmental protection and free informed consent are important rights. Finally, it presents a case study on the proposed uranium enrichment facility near Homer, Louisiana and argues that siting theplant would violate norms of distributive equity and free informed consent. It concludes that siting the facility is a case of environmental injustice and likely an example of environmental racism or classism. (shrink)

Direct download(3 more)   Export citation   Bookmark   3 citations  

COVID-19 catalyzed a renewed focus on the interconnected nature of human health. Together with the climate crisis, it highlighted not only intra-human connections but the entanglement of human health with the health of non-human animals, plants, and ecological systems more broadly. In this article, we challenge the persistent notion that humans are ontologically distinct from the rest of nature and the ethics that flow from this understanding. Imposing this privileged view of humans has devastating consequences for beings other than humans (...) and for humans and impedes effective responses to crises. We situate the COVID-19 pandemic within the “polycrisis,” and argue that one component of addressing multidimensional crises must involve fully embracing a relational ontology and ethics. We discuss two approaches to relationality, one articulated by ecofeminists and the second inhering in an Indigenous Māori worldview. Two dominant approaches, One Health and Planetary Health, purport to take account of relational ontologies in their approaches to health, but, we argue, persist in casting the more-than-human world in an instrumental role to secure human health. We suggest that Multispecies Justice, which draws on ecofeminist and Indigenous approaches, affords a fully relational approach to health and well-being. We explore the implications of relationality, and suggest fresh ways of understanding humans’ connections with the more-than-human world. (shrink)

Direct download(3 more)   Export citation   Bookmark  

Have Sober and Wilson salvaged a sophisticated and sound perspective for group selection from the rhetorical overkill of the selfish-gene’s-eye gang, or have they merely reinvented Hamilton’s and Maynard Smith’s alternative to group selection models, models that can do justice to all the observed and even imagined phenomena of cooperation in the biosphere? One of the main lessons I have learned in thinking about the issues raised by Unto Others over the last two years is that they are, at least (...) for me, mind-twistingly elusive and slippery. The appeal of the competing metaphors is such that there is unwitting sleight of hand in every direction, as the perspectives shift back and forth. One stern admonition might then be: eschew the metaphors, stick to the math! The problem is that the math doesn’t distinguish between the perspectives Sober and Wilson champion and those they oppose. By their own account, the mathematical models are equivalent in what they can predict—and hence equivalent in what they can, in one important sense, explain. But that is not the end of it: “When one theory achieves an insight by virtue of its perspective, the same insight can usually be explained in retrospect by the other theories. As long as the relationships among the theories are clearly understood, this kind of pluralism is a healthy part of science.”. Good point. Patrick Suppes used to delight in challenging cognitive psychologists to point to any “cognitive” phenomenon that he couldn’t model, retrospectively, in strict behaviorist terms. The wise response was to deflect the challenge. His behaviorist models were parasitic: they would never have been devised—the phenomena in question were all but invisible to the behaviorists—without the inspiration of the cognitive model they translated into behaviorese. And what Sober and Wilson say here echoes what one of their chief opponents, Richard Dawkins, had already claimed for his perspective: “The extended phenotype may not constitute a testable hypothesis in itself, but it so far changes the way we see animals and plants that it may cause us to think of testable hypotheses that we would otherwise never have dreamed of.” So what’s all the fuss about? If each side is just saying “Here’s a good way of thinking of things, a prolific generator of hypotheses to test!” they could both be right, with their different perspectives having rather different utilities in different circumstances. (shrink)

Direct download(5 more)   Export citation   Bookmark  

This article focuses on the ethno-biological expedition to the Amazon headed by Ettore Biocca between November 1962 and July 1963. Biocca, a parasitologist by training, assembled a multidisciplinary team to carry out an ethno-biological study of Amazon natives. The expedition work covered the natives' customs, myths, chants, diseases and the hallucinogenic compounds and curare they used, and took into account plants and animals common to the Amazon environment. This article aims to contribute to the understanding of the 20th-century Western approach (...) to the Amazon people and its cultural importance. It sets out to show how Biocca's encyclopaedic work related to the centrality of Amazonia and its peoples in scientific and cultural debates on modernity and Western culture in the 1960s, and how it connects to Cold War anxieties about the disappearance of ‘uncorrupted’ peoples. (shrink)

No categories

Direct download(2 more)   Export citation   Bookmark  

The economic pastoral letter states that employees have rights to employment, non-discriminatory treatment, adequate wages, health care, old age and disability insurance, healthy working conditions, rest and holidays, reasonable protection from arbitrary dismissal, notice ofplant closings, unionization and collective bargaining. In addition, the bishops call for better cooperation between labor and management. This paper discusses how these rights can be protected by good personnel/human resource policies and procedures.

Direct download(4 more)   Export citation   Bookmark   2 citations  

This article explores whether and how the biotechnologization process that the fuel-plant Jatropha curcas is undergoing might strengthen local sustainable development. It focuses on the ongoing efforts of the multi-stakeholder network Gota Verde to harness Jatropha within local small-scale production systems in Yoro, Honduras. It also looks at the genomics research on Jatropha conducted by the Dutch research institutePlant Research International, specifically addressing the ways in which that research can assists local development in Honduras. A territorial approach (...) is applied for analysis employing a three domain concept (local sustainable biotechnological development) of territory, technology and re-territorialization. The article suggests that, although the biotechnologization process (through genomics) of Jatropha within the socio-technical framework of the institute and multi-stakeholder networks is an ongoing process––and different trajectories are, therefore, still open––the process can, nevertheless, strengthen local sustainable development. (shrink)

Direct download(5 more)   Export citation   Bookmark  

The Huguenot refugee artist Jacques Le Moyne de Morgues is traditionally known for his observations of North America and as the author of numerous albums of floral drawings. This article reassesses the attribution of several of these albums to Le Moyne based on documentary and stylistic evidence. It identifies the sixteenth-century Huguenot nobleman and diplomat Jacques de Morogues as the owner of one of the albums, and it discusses the production and early use of these albums as luxury gifts in (...) French diplomatic and courtly circles. We document connections between the albums associated with Le Moyne and other sixteenth-century and later works of floral imagery. We argue that the albums associated with Le Moyne show that developments in floral imagery in this period were driven by a distinct network of artists and collectors, and we offer a hypothesis of how members of this network may have interpreted them as an occasion to take pleasure in nature’s charming variety, to praise it as God’s work and to use flowers as symbols of feminine beauty and fertility. (shrink)

Direct download(2 more)   Export citation   Bookmark  

Meiotin‐1 is a protein found in developing microsporocytes of Lilium longiflorum, and immunological assays indicate that cognates exist in both mono‐ and dicotyledonous plants. Its temporal and spatial expression pattern, coupled with its unusual distribution in chromatin and the properties it shares with histone H1, encourages speculation that it is involved in regulating meiotic chromatin structure. Molecular analyses provide support for the hypothesis that meiotin‐1 arose from histone H1 by an exon shuffling mechanism, as meiotin‐1 is an H1‐like protein that (...) lacks the amino‐terminal domain shared by H1 molecules. We have proposed that meiotin‐1 serves to limit chromatin condensation in order to foster the unique cytological and molecular events which occur during meiotic prophase. As such, meiotin‐1 fits the role of a ‘meiosis readiness factor’, and its accumulation to a threshold level may commit mitotically dividing progenitor cells to differentiate into meiocytes. (shrink)

Direct download(2 more)   Export citation   Bookmark  

The idea of natural truth is the idea of truths that are the same for all rational beings with our biological form of life. The thought is that in regard to at least some issues, for example the ontological status of fish, there are natural truths, and that it is the task of philosophy in particular to discover such truths. In my essay I distinguish such truths from empirical truths such as, for example, that water nourishes plants or that there (...) are black swans, as well as from matters of taste. Angle reminds us of yet another sort of truth that is not amenable to the kind of treatment that I outline for natural truth. It is not, or at least seems not to be, a natural truth that one ought to rid... (shrink)

Direct download(3 more)   Export citation   Bookmark  

The use of genetically modified plants in agriculture (GM crops) is controversially discussed in academic publications. Important issues are whether the release of GM crops is beneficial or harmful for the environment and therefore acceptable, and whether the modification of plants is ethically permissible per se . This study provides a comprehensive overview of the moral reasoning on the use of GM crops expressed in academic publications from 1975 to 2008. Environmental ethical aspects in the publications were investigated. Overall, 113 (...) articles from 15 ecology, environmental ethics, and multidisciplinary science journals were systematically reviewed. Three types of moral concerns were used to structure the normative statements, moral notions, and moral issues found in the articles: concerns addressing consequences of the use of GM crops, concerns addressing the act (the technique itself), and concerns addressing the virtues of an actor. Articles addressing consequences (84%) dealt with general ecological and risk concerns or discussed specific ecological issues about the use of GM crops. Articles addressing the act (57%) dealt with the value of naturalness, the value of biotic entities, and conceptual reductionism, whereas articles addressing the actor (43%) dealt with virtues related to the handling of risks and the application of GM crops. The results of this study may help to structure the academic debate and contribute to a better understanding of moral concerns that are associated with the key aspects of the ethical theories of consequentialism, deontology, and virtue ethics. (shrink)

Direct download(4 more)   Export citation   Bookmark   5 citations  

In Scotland, residents have fought open-net salmon farms and their toll on human and nonhuman bodies for decades. This paper recollects seven years of work in Skye and Raasay, two islands off the northwest coast of the country, developing strategies to divest away from salmon aquaculture. Addressing the contemporary wave of underwater clearances created by UK’s top food export industry, it unpacks the implementation of a transition into alternative horizons by embracing the legacies of toxicity inherited from salmon extractivist industries. (...) CLIMAVORE, a framework developed as a research-led artistic practice by the authors, investigates how to eat in the new seasons of the climate crisis. In a season of marine dead zones, it facilitates new approaches to aquaecology and coastal care that cultivate coastal livelihoods. CLIMAVORE began with a new public forum, shaped as a multispecies intertidal table, established in Skye in 2017 to envision environmentally regenerative and socially reparative forms of food production based on metabolic interactions between humans and depleted landscapes that benefit a plethora of species. CLIMAVORE’s site responsive methodology relies on a socially-engaged art practice, consisting of fieldwork, interviews, working groups, oral histories, performative meals, cooking and building apprenticeships, tidal gardening, material testing and public art installations. Ongoing collaboration with residents, scientists, and policymakers critically explores ways of living not only on but with the coast. This new holistic approach to coastal nourishment provides methodologies for ecological praxis as well as a platform for researchers and the general public to imagine an alternative ecological future: the tidal commons. (shrink)

Direct download(3 more)   Export citation   Bookmark  

My focus in this essay is Shoshone and Paiute arguments against the Yucca Mountain site that claim that because Yucca Mountain is a culturally significant sacred place it should not be used to store nuclear waste. Within this set of arguments for the cultural value of Yucca Mountain, I focus on arguments that claim that the proposed nuclear waste site will damage Yucca Mountain and its ecosystem—the mountain, plants, and animals themselves. These arguments assume that Yucca Mountain and its ecosystem (...) are animate and will suffer. An understanding of Western Shoshone and Southern Paiute perspectives on the human relationship to nature, particularly adherence to the concept of animist intersubjectivity, is crucial towards interpreting these arguments. As such, my purpose in this essay is an in-depth analysis of the relationship between the cultural presumption of animist intersubjectivity and Shoshone and Paiute arguments against the Yucca Mountain site. In order to explore this relationship, I begin the paper by discussing concept of animist intersubjectivity as a cultural presumption and its relationship to arguments. Then, I analyze Shoshone and Paiute arguments against the Yucca Mountain site to reveal how animist intersubjectivity influences these arguments. I conclude the essay by explaining the implications of this analysis. (shrink)

No categories

Direct download(4 more)   Export citation   Bookmark   3 citations  

Evans et al. (Journal of Agricultural and Environmental Ethics, 2008) have attempted to enmesh me in their dispute with the Florida Bureau of InvasivePlant Management about a specific system, Kings Bay/Crystal River. In so doing, they repeatedly mischaracterize my positions in order to depict, incorrectly, invasion biology as monolithic and me as a representative of one extreme of a false dichotomy about management of introduced species. In addition, they introduce an issue irrelevant in this case (extinctions) and cite (...) incorrect data. Proposing to manage people, manatees, introduced plants, and cyanobacteria in Kings Bay by participative adaptive management, they ignore the fact that living organisms can both disperse autonomously and hitchhike. Finally, they present few details on any aspect of their management proposal and do not address the myriad problems that have beset previous attempts at scientific adaptive management, especially at large scales. Until such a management approach is fleshed out and implemented, it is impossible to assess its validity for Kings Bay, and it is very premature to suggest it as a general model for dealing with invasive species disputes. (shrink)

Direct download(4 more)   Export citation   Bookmark   3 citations  

The effects of the COVID-19 pandemic have rippled across the United States’ (US) agri-food system, illuminating considerable issues. US seed systems, which form the foundation of food production, were particularly marked by panic-buying and heightened safety precautions in seed fulfillment facilities which precipitated a commercial seed sector overwhelmed and unprepared to meet consumer demand for seed, especially for non-commercial growers. In response, prominent scholars have emphasized the need to support both formal (commercial) and informal (farmer- and gardener-managed) seed systems to (...) holistically aid growers across various contexts. However, limited attention to non-commercial seed systems in the US, coupled with a lack of consensus surrounding what exactly a resilient seed system looks like, first warrants an exploration into the strengths and vulnerabilities of existing seed systems. This paper seeks to examine how growers navigated challenges in seed sourcing and how this may reflect the resilience of the seed systems to which they belong. Using a mixed-methods approach which includes data from online surveys (n = 158) and semi-structured interviews (n = 31) with farmers and gardeners in Vermont, findings suggest that growers were able to adapt – albeit through different mechanisms depending on their positionality (commercial or non-commercial) within the agri-food system. However, systemic challenges emerged including a lack of access to diverse, locally adapted, and organic seeds. Insights from this study illuminate the importance of creating linkages between formal and informal seed systems in the US to help growers respond to manifold challenges, as well as promote a robust and sustainable stock of planting material. (shrink)

Direct download(4 more)   Export citation   Bookmark  

Standing in front of perhaps the most crucial decade of the future to come, when mankind has just experienced three years of global pandemic, a raging war, extreme climate events and mass extinction of animals and plants, we have arrived at a crossroads. Decisions must be made on whether we charge at full speed to explore alternative social-ecological systems that lead to human well-being and regeneration of nature; or continue down a pathway built on resource extraction, unsustainable and unethical urbanization (...) and destruction of nature and lives. Recently, as countries seek to recover from the pandemic, many are contemplating large-scale infrastructure schemes and projects, which have been tried and proven means to drive extraction-based economic growth. This highlights the importance of environmental justice and resistance – an area from which voices are not often heard loud enough, yet offers fertile ground where radical, sustainable alternatives may emerge among people and communities that refuse to comply with the unjust development imposed on them. Our work seeks to contribute to research studying the potential of such phenomena, by designing a framework to capture key organizational, political and ethical features that make resistance a transformative practice. The outcome of this effort is a Resistance-Based Transformative Alternative (ReBasTA) Framework, which can be employed to inform both desktop-based data collection and analysis on resistance practices, as well as in-depth field research on deep drivers and leverage points for transformation. Moreover, the framework makes longitude study of transformative practice possible, by using a consistent set of criteria. This paper introduces the conceptual and methodological approach underlying our framework and the collaborative process employed in designing it and its key criteria. In the final section, we also discuss possible applications, with particular reference to resistance movements triggered by large-scale infrastructures. (shrink)

No categories

Direct download(3 more)   Export citation   Bookmark  

The earth is the archetypal image of the origin of humanity, but throughout the history of Western culture it has given way to other, more heavenly allegories. Enlightenment as a paradigm of knowledge consolidated itself in Western philosophical thought in a very convincing way as a production of meanings. Through this rereading of the first Greek metaphysics, thought gradually distanced itself from its materiality, from its humanity, from the possibility of admiring the concrete world, getting closer and closer to the (...) need to create abstract objects, which, as ethical limits, political, aesthetic and epistemological, we end up meeting again in our lives. Visibility seems to be the basis of a Western mental habitus: recognition, officiality, legitimacy and certainty become visible signs with which we compare and validate our own experiences. The earth, as a less transparent element, with greater ability to hide, occult, encrypt represents, however, an image that is better suited to the discussion plan proposed in this text. The relationship with reality, in terms of visibility and invisibility, requires a new perception of the world: the underlying structure no longer assumes a transcendent level, but is understood as a plane of immanence, in which meaning is interior, produced by compositions; an amalgam of networks that intertwine in an imperceptible, invisible underground plane. What we propose here is not a vertical perspective, but a horizontal one like the ground. It is from this earthly thought that we want to reflect on what happens in philosophy and childhood; in philosophy with childhood and in the childhood of philosophy. In the present attempt of an ecophilosophy of education, the discussion plan requires a deviation from the guiding images with which we learn to do research. The intention of the following investigation is to look for another type of map: a kind of subterranean cartography, which pays attention not to what we can see, which has well-defined names and categories, but to what is hidden and inhabits a plane that is muddy, earthly, indistinguishable and absolutely alive. According to the Lipmanian model of Philosophy for Children, the subterranean and rhizomatic processes of the research community will be examined, comparing them to other collective movements that characterize the vegetable communities of plants that inhabit the natural world. Finally, three concepts considered relevant to escape the limits found in some contemporary pedagogical postures will be illustrated, suggesting other paths in the relationship between philosophy, childhood and education: reciprocity, passivity and invisibility. (shrink)

Direct download(2 more)   Export citation   Bookmark  

Research has uncovered consistent gender differences in attitudes toward gay men, with women expressing less prejudice than men (Herek, 2003). Attitudes toward lesbians generally show a similar pattern, but to a weaker extent. The present work demonstrated that motivation to respond without prejudice importantly contributes to these divergent attitudes. Study 1 revealed that women evince higher internal motivation to respond without prejudice (IMS,Plant & Devine, 1998) than do men and that this difference partially mediates the relationship between gender (...) and attitudes toward gay men. The second study replicated this finding and demonstrated that IMS mediates the relationship between gender and attitudes toward lesbians. Study 2 further revealed that gender-role variables contribute to the observed gender differences in motivation to respond without prejudice. These findings provide new insights into the nature of sexual prejudice and for the first time point to possible antecedents of variation in motivation to respond without prejudice. (shrink)

Direct download   Export citation   Bookmark  

Public opinion can affect the adoption of genome editing technologies. In food production, genome editing can be applied to a wide range of applications, in different species and with different purposes. This study analyzed how the public responds to five different applications of genome editing, varying the species involved and the proposed purpose of the modification. Three of the applications described the introduction of disease resistance within different species, and two targeted product quality and quantity in cattle. Online surveys in (...) Canada, the US, Austria, Germany and Italy were carried out with a total sample size of 3698 participants. Using a between-subject design, participants were confronted with one of the five applications and asked to decide whether they considered it right or wrong. Perceived risks, benefits, and the perception of the technology as tampering with nature were surveyed and were complemented with socio-demographics and a measure of the participants’ moral foundations. In all countries, participants evaluated the application of disease resistance in humans as most right to do, followed by disease resistance in plants, and then in animals, and considered changes in product quality and quantity in cattle as least right to do. However, US and Italian participants were generally more positive toward all scenarios, and German and Austrian participants more negative. Cluster analyses identified four groups of participants: ‘strong supporters’ who saw only benefits and little risks, ‘slight supporters’ who perceived risks and valued benefits, ‘neutrals’ who showed no pronounced opinion, and ‘opponents’ who perceived higher risks and lower benefits. This research contributes to understanding public response to applications of genome editing, revealing differences that can help guide decisions related to adoption of these technologies. (shrink)

Direct download(4 more)   Export citation   Bookmark   1 citation  

Direct download(4 more)   Export citation   Bookmark  

Since assisted reproductive technologies (ART) are becoming increasingly important in wildlife conservation breeding programs, we need to discuss their implications to ensure their responsible use regarding the environment, the animals, and the people involved. In this article, we seek to contribute to the ongoing ethical and philosophical debate on ART in conservation by discussing the current attempt to save the northern white rhino (Ceratotherium simum cottoni, NWR) from extinction. Only two female NWRs are known to the world, both unable to (...) carry a pregnancy, and the last chance to avoid sure extinction relies on pushing the boundaries of contemporary science through the use of advanced ART and stem cell-associated techniques. The attempt to save the NWR constitutes a valuable testbed for assessing the use of ART in conservation and an occasion for identifying possible critical issues. It touches upon several ethically relevant points—that we identify and organize in an Ethical Matrix—such as the need to guarantee animal welfare, and it provides the opportunity to discuss some significant questions related to conservation. For instance, how far is it legitimate to go in trying to save a taxon? Is using sophisticated technologies to remedy anthropogenic harm a part of the problem rather than the solution? (shrink)

Direct download(4 more)   Export citation   Bookmark