The enactive approach aims at providing a unified account of perceptual experiences in terms of bodily activities. Most enactive arguments come from the analysis of visual experiences, but there is one domain of consciousness where the enactive theses seem to be less controversial, namely, bodily experiences. After drawing the agenda for an enactive view of tactile experiences, I shall highlight the difficulties that it has to face, both conceptual and empirical.

Everyday activities, like putting flowers on a grave or traveling across country, can lead to the spread of mosquitoes, some of which may transmit disease-causing viruses or parasites. This paper discusses deforestation, wetland restoration, travel and trade from the perspective of the effects these activities have on mosquito population.

Genetically engineered (GE) insects, such as the GE OX513A Aedes aegypti mosquitoes, have been designed to suppress their wild-type populations so as to reduce the transmission of vector-borne diseases in humans. Apart from the ecological and epidemiological uncertainties associated with this approach, such biotechnological approaches may be used by individual governments or the global community of nations to avoid addressing the underlying structural, systemic causes of those infections... We discuss here key ethical questions raised by the use of GE (...) mosquitoes, with the aim of fostering discussion between the public, researchers, policy makers, healthcare organizations, and regulatory agencies at the local, national, and international levels. We affect that goal by outlining a procedural approach to decision-making about the use of the “biotechnology” that goes beyond “community engagement.” The protocol we advocate for entails informed deliberations and decision-making at the community level. It is designed to ensure that the voices of the marginalized and vulnerable groups that would be disproportionately affected by the decision are heard during the community-wide discussions. Moreover, we make the case that the values embedded in the risk assessment should be identified so that the community can make an informed decision about the use of GE insects. In addition, we advocate for the involvement of a variety of actors whose responsibility would be to ensure that the community has the opportunity to make an informed decision based on deliberations about the use of the “biotechnology.”. (shrink)

This article discusses whether animal rights may be defended from a natural rights or an ethical perspective. Both options fail. The same analysis applies in the case of humankind. ‘Humankind’ does not bring with it the acknowledgement of rights, nor does a focus on what is arguably characteristic of humankind, reason. Reason is decisive, though, in another respect: the fact that reasonable beings can claim and lay down rights. It does not follow from this that animals should have no rights, (...) since human beings may be motivated to constitute such rights, while this provides the most solid basis for them. (shrink)

Mosquito-borne diseases represent a significant global disease burden, and recent outbreaks of such diseases have led to calls to reduce mosquito populations. Furthermore, advances in ‘gene-drive’ technology have raised the prospect of eradicating certain species of mosquito via genetic modification. This technology has attracted a great deal of media attention, and the idea of using gene-drive technology to eradicate mosquitoes has been met with criticism in the public domain. In this paper, I shall dispel two moral objections that have (...) been raised in the public domain against the use of gene-drive technologies to eradicate mosquitoes. The first objection invokes the concept of the ‘sanctity of life’ in order to claim that we should not drive an animal to extinction. In response, I follow Peter Singer in raising doubts about general appeals to the sanctity of life, and argue that neither individual mosquitoes nor mosquitoes species considered holistically are appropriately described as bearing a significant degree of moral status. The second objection claims that seeking to eradicate mosquitoes amounts to displaying unacceptable degrees of hubris. Although I argue that this objection also fails, I conclude by claiming that it raises the important point that we need to acquire more empirical data about, inter alia, the likely effects of mosquito eradication on the ecosystem, and the likelihood of gene-drive technology successfully eradicating the intended mosquito species, in order to adequately inform our moral analysis of gene-drive technologies in this context. (shrink)

Little is known about the biting nuisance of mosquitoes in the UK, despite the high numbers found in some locations. A telephone questionnaire survey was used to determine the perceived nuisance of biting insects on the Isle of Sheppey, Kent, a place notorious for mosquitoes. Two hundred randomly selected individuals were interviewed and asked if they suffered from mosquito bites. If they answered yes, they were asked to describe where and when they were bitten, and what measures they (...) took against mosquitoes. Forty-six per cent of respondents completed the questionnaire. Of those, 50% reported being bitten by mosquitoes, mostly outside during the summer. Seventy per cent said that most biting occurred during the evening and night. Of those respondents who protected themselves against biting (27), most used repellents (70%), with the remainder changing their behaviour to avoid mosquitoes, including closing or screening windows (33%), wearing thicker clothes (7%) and spraying insecticide (4%). One person slept under a bednet in summer (4%). This study provides evidence that on the Isle of Sheppey mosquitoes are considered a major nuisance by a sizeable proportion of the population. Since there is growing interest in the threat posed by new and emerging diseases in the UK, health authorities will need to make substantial efforts to inform and reassure the public about the threats posed by mosquitoes in areas where they are common. (shrink)

Mosquito‐borne diseases take a tremendous toll on human populations, especially in developing nations. In the last decade, scientists have developed mosquitoes that have been genetically modified to prevent transmission of mosquito‐borne diseases, and field trials have been conducted. Some mosquitoes have been rendered infertile, some have been equipped with a vaccine they transmit to humans, and some have been designed to resist diseases. This article focuses on ethical issues raised by field trials of disease‐resistant, genetically modified mosquitoes. (...) Some of these issues include: protecting the public and the environment from harm, balancing benefits and risks, collaborating with the local community, avoiding exploitation, and safeguarding the rights and welfare of research subjects. One of the most difficult problems involves protecting the welfare of community members who will be impacted by the release of mosquitoes but who are not enrolled in the study as research subjects. To address this concern, field trials should take place only when the targeted disease is a significant public health problem in an isolated area, the benefits of the trial for the community are likely to outweigh the risks, community leaders approve of the trial, and there are measures in place to protect the welfare of un‐enrolled community members, such as informing the community about the study and offering free treatment to people who contract mosquito‐borne diseases. Since the justification of any field trial depends on a careful examination of the scientific and ethical issues, proposed studies should be evaluated on a case‐by‐case basis. (shrink)

A geographically stratified cross-sectional survey was conducted in 2002 to investigate household-level factors associated with use of mosquito control measures and self-reported malaria in Malindi, Kenya. A total of 629 households were surveyed. Logistic regressions were used to analyse the data. Half of all households (51%) reported all occupants using an insecticide-treated bed net and at least one additional mosquito control measure such as insecticides or removal of standing water. Forty-nine per cent reported a history of malaria in the household. (...) Of the thirteen household factors analysed, low (OR=0·23, CI 0·11, 0·48) and medium (OR=0·50, CI 0·29, 0·86) education, mudcoral (OR=0·0·39, CI 0·24, 0·66) and mud block–plaster (OR=0·47, CI 0·25, 0·87) wall types, farming (OR=1·38, CI 1·01, 1·90) and travel to rural areas (OR=0·48, CI 0·26, 0·91) were significantly associated with the use of mosquito control, while controlling for other covariates in the model. History of reported malaria was not associated with the use of mosquito control (OR=1·22, CI 0·79, 1·88). Of the thirteen covariates analysed in the second model, only two household factors were associated with history of malaria: being located in the well-drained stratum (OR=0·49, CI 0·26, 0·96) and being bitten while in the house (OR=1·22, CI 0·19, 0·49). These results suggest that high socioeconomic status is associated with increased household-level mosquito control use, although household-level control may not be enough, as many people are exposed to biting mosquitoes while away from the house and in areas that are more likely to harbour mosquitoes. (shrink)

Mosquito-borne diseases take a tremendous toll on human populations, especially in developing nations. In the last decade, scientists have developed mosquitoes that have been genetically modified to prevent transmission of mosquito-borne diseases, and field trials have been conducted. Some mosquitoes have been rendered infertile, some have been equipped with a vaccine they transmit to humans, and some have been designed to resist diseases. This article focuses on ethical issues raised by field trials of disease-resistant, genetically modified mosquitoes. (...) Some of these issues include: protecting the public and the environment from harm, balancing benefits and risks, collaborating with the local community, avoiding exploitation, and safeguarding the rights and welfare of research subjects. One of the most difficult problems involves protecting the welfare of community members who will be impacted by the release of mosquitoes but who are not enrolled in the study as research subjects. To address this concern, field trials should take place only when the targeted disease is a significant public health problem in an isolated area, the benefits of the trial for the community are likely to outweigh the risks, community leaders approve of the trial, and there are measures in place to protect the welfare of un-enrolled community members, such as informing the community about the study and offering free treatment to people who contract mosquito-borne diseases. Since the justification of any field trial depends on a careful examination of the scientific and ethical issues, proposed studies should be evaluated on a case-by-case basis. (shrink)

Effective community engagement is an important legal, ethical, and practical prerequisite for conducting field trials of genetically modified mosquitoes, because these studies can substantially impact communities and it is usually not possible to obtain informed consent from each community member. Researchers who are planning to conduct field trials should develop a robust community engagement strategy that meets widely recognized standards for seeking approval from the affected population, such as timeliness, consent, information sharing, transparency, understanding, responsiveness, mutual understanding, inclusiveness, and (...) respectfulness. Additional research is needed on the effectiveness of different methods of engaging communities in field trials of genetically modified mosquitoes and how to respond to public opposition to genetically modified organisms. For research programs involving the genetic modification of disease vectors to move forward, they must have public acceptance and support, which cannot be achieved without effective community engagement. (shrink)

Scholars see Israel as a settler state, comparable with North American, South African and Oceanian cases. But how was Jewish settlement-colonization in pre-Israel Palestine even possible? In the North American, Oceanian and South African cases, European settlers did not encounter diseases like malaria that scholars argue impede settlement. Palestine, however, had high malaria morbidity rates. The disease incapacitated and killed settlers and was one of the most serious threats to Jewish settlement and political economic development. I argue that the exigencies (...) caused by malaria are exactly what fostered Jewish settlement-colonization in Palestine because they prompted the formation of socio-technical arrangements in order to combat the disease. These arrangements included, among other things, people, organizations, scientific knowledge, procedures and larvicides as well as considering the agency of mosquitos and other elements in the environment in disrupting settlement. These arrangements were marshalled by medical-national and political institutions that developed to combat malaria. Only then were Jewish settlers able to effectively colonize Palestine, make their colonies economically viable and make Palestine habitable for future Jewish immigrants. I demonstrate this argument by drawing on archival and library materials that describe the work of an important Zionist Malaria Research Unit (MRU) as well as malaria control efforts in Hefer Valley in the 1930s–1940s, after the unit’s disbandment. Then, I discuss the theoretical implications of this paper to settler-colonial and state-building literatures that, for the most part, neglected the socio-technical nature of state-building and settlement. (shrink)

The focus of this paper is on normative ethical theories and endangered species. To be exact, I examine two theories: the theory of obligation and care ethics, and ask which is better-suited in the case of endangered species. I argue that the aretic, feminist-inspired ethics of care is well-suited in the case of companion animals, but ill-suited in the case of endangered species, especially in the case of “unlovable” species. My argument presupposes that we now live an era where human (...) disturbances to planetary ecosystems are triggering a sixth mass species extinction, and widespread interventions will be needed to save many species from extinction. (shrink)

This chapter analyzes the ‘hard sell’ of genetically engineered (GE) mosquitoes with gene drives as the solution to mosquito-borne diseases. A defining characteristic of the aggressive sell of the bio-technology is the ‘biologization’ of the significant prevalence of mosquito-borne diseases in certain socio-economically marginalized regions of the global South. Specifically, hard sell narratives either minimize or ignore the structural, systemic factors that are partially responsible for the public health problem that the GE mosquitoes are intended to bio-solve. The (...) biologization of a public health problem that disproportionately affects low-income, marginalized populations in certain global South regions has epistemic, epidemiological, and gendered ethico-political costs. The primary focus of this chapter is two scientific papers by researchers with ties to Target Malaria, a research organization developing GE mosquitoes with gene drives as the solution to malaria in the global South. In the interest of a contextualized analysis of the hard sell of GE mosquitoes with gene drives in those scientific papers, this chapter examines the normative commitments of Target Malaria’s key backer, the Bill and Melinda Gates Foundation, a powerful private organization that currently dominates the global health governance stage. (shrink)

CRISPR Cas9-powered gene drive allows for the rapid alteration of malaria-causing mosquitoes to spread an infertility gene or resistance to malaria among their species. Malaria eradication would be a great boon to human health. But many are concerned with driving genetic changes through a natural species. This chapter catalogs objections to the use of gene drive in mosquitoes for eradicating malaria. In-principle objections to gene drive use are not compelling. The most urgent concerns are related to the safety (...) of the technology for the environment and human health. Philosophers play a critical role in working along scientists to develop risk/benefit models that weigh the reasons for and against gene drive to eradicate malaria based on our best scientific knowledge and rigorous normative reasoning. (shrink)

Dengue fever is a debilitating and infectious disease that could be life-threatening. It is caused by the dengue virus which affects millions of people in the tropical area. Currently, there is no cure for the disease as there is no vaccine available. Thus, prevention of the vector population using conventional methods is by far the main strategy but has been found ineffective. A genetically modified mosquito is among the favoured alternatives to curb dengue fever in Malaysia. Past studies have shown (...) that development and diffusion of gene technology products depends heavily upon public acceptance. The purpose of this study is to identify the relevant factors influencing stakeholders’ attitudes toward the GM Aedes mosquito and to analyse the relationships between all the factors using the structural equation model. A survey was carried out on 509 respondents from various stakeholder groups in the Klang Valley region of Malaysia. Results of the survey have confirmed that public perception towards complex issues such as gene technology should be seen as a multi-faceted process. The perceived benefit-perceived risk balance is very important in determining the most predominant predictor of attitudes toward a GM mosquito. In this study the stakeholders perceived the benefit of the GM mosquito as outweighing its risk, translating perceived benefit as the most important direct predictor of attitudes toward the GM mosquito. Trust in key players has a direct influence on attitudes toward the GM mosquito while moral concern exhibited an indirect influence through perceived benefits. Other factors such as attitudes toward technology and nature were also indirect predictors of attitudes toward the GM mosquito while religiosity and engagement did not exhibited any significant roles. The research findings serve as a useful database to understand public acceptance and the social construct of public attitudes towards the GM mosquito to combat dengue. (shrink)

The release of over 6,000 genetically modified mosquitoes (GMM) into uninhabited Malaysian forests in 2010 was a frantic step on the part of the Malaysian government to combat the spread of dengue fever. The field trial was designed to control and reduce the dengue vector by producing offspring that die in the early developmental stage, thus decreasing the local Aedes aegypti population below the dengue transmission threshold. However, the GMM trials were discontinued in Malaysia despite being technologically feasible. The (...) lack of systematic studies in terms of cost-benefit analysis, questionable research efficacy and safety-related concerns might have contributed to the termination of the field trial. Hence, this research aims to evaluate the feasibility of GMM release in Malaysia by using a holistic approach based on an Islamic ethical-legal assessment under the maslahah-mafsadah (benefit-risk) concept. Three main strategies based on the maslahah-mafsadah concept approach have been applied: 1) an evidence-based approach, 2) an impact-based approach and, 3) a priority approach. The analysis concluded that GMM could be categorised as zanniyyah (probable). GMM is a promising alternative for dengue control, but many issues must be addressed before its widespread adoption. (shrink)

In recent years, genetically engineered (GE) mosquitoes have been proposed as a public health measure against the high incidence of mosquito-borne diseases among the poor in regions of the global South. While uncertainties as well as risks for humans and ecosystems are entailed by the open-release of GE mosquitoes, a powerful global health governance non-state organization is funding the development of and advocating the use of those bio-technologies as public health tools. In August 2016, the US Food and (...) Drug Agency (FDA) approved the uncaged field trial of a GE Aedes aegypti mosquito in Key Haven, Florida. The FDA’s decision was based on its assessment of the risks of the proposed experimental public health research project. The FDA is considered a global regulatory standard setter. So, its approval of the uncaged field trial could be used by proponents of GE mosquitoes to urge countries in the global South to permit the use of those bio-technologies. -/- From a public health ethics perspective, this paper evaluates the FDA’s 2016 risk assessment of the proposed uncaged field trial of the GE mosquito to determine whether it qualified as a realistic risk evaluation. -/- The FDA’s risk assessment of the proposed uncaged field trial did not proximate the conditions under which the GE mosquitoes would be used in regions of the global South where there is a high prevalence of mosquito-borne diseases. -/- Given that health and disease have political-economic determinants, whether a risk assessment of a product is realistic or not particularly matters with respect to interventions meant for public health problems that disproportionately impact socio-economically marginalized populations. If ineffective public health interventions are adopted based on risk evaluations that do not closely mirror the conditions under which those products would actually be used, there could be public health and ethical costs for those populations. (shrink)

Earlier investigations of the hormonal control of vitellogenin (egg‐yolk protein) synthesis in mosquitoes relied on microsurgical manipulations to identify organs that secrete the various hormones that stimulate or inhibit vitellogenesis. Advances in the last 10 years, using radioimmunoassays, HPLC, mass spectrometry and tissue‐culture incubations, have shown that the control mechanism involves a complex interaction between ecdysteroids, juvenile hormones and peptide hormones.

Gene drive technologies (GDTs) have been proposed as a potential new way to alleviate the burden of malaria, yet have also raised ethical questions. A central ethical question regarding GDTs relates to whether it is morally permissible to intentionally modify or eradicate mosquitoes in this way and how the inherent worth of humans and non-human organisms should be factored into determining this. Existing analyses of this matter have thus far generally relied on anthropocentric and zoocentric perspectives and rejected an (...) individualist biocentric outlook in which all living organisms are taken to matter morally for their own sake. In this paper, we reconsider the implications of taking a biocentric approach and highlight nuances that may not be evident at first glance. First, we shortly discuss biocentric perspectives in general, and then outline Paul Taylor’s biocentric theory of respect for nature. Second, we explore how conflicting claims towards different organisms should be prioritised from this perspective and subsequently apply this to the context of malaria control using GDTs. Our ethical analysis shows that this context invokes the principle of self-defence, which could override the pro tanto concerns that a biocentrist would have against modifying malaria mosquitoes in this way if certain conditions are met. At the same time, the case study of GDTs underlines the relevance of previously posed questions and criticism regarding the internal consistency of Taylor’s egalitarian biocentrism. (shrink)

In 2011, the Florida Keys Mosquito Control District’s proposed to release a genetically engineered Aedes aegypti mosquito to fight the spread of dengue fever and chikungunya. This would be the first release of a genetically engineered insect into the open environment in the US, and the proposal has sparked heated opposition in Key West. We address this controversy through Beck’s concept of reflexive modernity, tracing the way the FKMCD and Oxitec interpret the risk involved in the situation and how citizens (...) opposing the release construct their very different interpretation. We use theories of space and place and Rickert’s theory of ambient rhetoric to argue that the contrasting interpretations of risk in this case stem, at least in part, from the different construction of space and place embraced by the FKMCD and Oxitec and by many in the community. The authority of nature invoked by FKMCD and Oxitec’s scientific discourse frames the public forum in ways that exclude full deliberation and affective argumentative grounds that emerge from the materiality of place. While the public forum privileges what Latour calls matters of fact, the controversy emerges from different understanding of what Latour calls matters of concern. (shrink)

Refrigeration has become so well established over the last 125 years that today a crude ice maker becomes a boon for primitive people in the jungle or desert. Only a total dislocation in energy sources will quickly loosen the connections between people and cooling. A few centuries ago, Hippocrates observed: ‘most men would rather run the hazards of their lives or health than be deprived of the pleasure of drinking out of ice’ … In the U.S.A. [today], 750 million frozen (...) Eskimo Pies are sold annually and seven ice cream plants are said to be operating in Moscow … Like the men of Hippocrates, a lot of people will resist any curtailment in food and freezing operations. They have come to expect these for survival in our present social and industrial orders.These remarks, asserting the extent to which the people of the United States of America regarded refrigeration not as an optional luxury but as a necessity for survival even at the height of the energy crisis of the late 1970s, formed part of a contribution to a massive 11-volume international compendium, Alternative Energy Sources, produced in 1978 in response to Western concerns about rising oil prices and falling reserves. An enthusiastic advocate for geothermal energy, the contributor's perception provides a vivid contextual starting point for our study of Paul Theroux's novel The Mosquito Coast . In this novel the central narrative focuses upon a New England family's rejection of post-war American consumer society with its imperative to ‘build automobiles that would fail within five years and refrigerators that would fail in ten’. The novel indeed explores some of those very kinds of alternative energy sources which had been exciting scientists and inventors since the early 1970s when journals such as The Ecologist had begun to prophesy an end to energy-driven economic growth in the western world. (shrink)

It is also the merest sanity, if we hope to reduce the likelihood of future atrocities. It may be comforting to pretend that our enemies "hate our freedoms," as President Bush stated, but it is hardly wise to ignore the real world, which conveys different lessons.

Conscience plays a crucial role in identifying, applying, and initiating actions chosen as right or wrong. In this paper, we pursue an answer to the question, Can bad conscience, as Nietzsche defines it, be overcome to form the ground for the creation of good conscience? Nietzsche identifies Christianity as the source of that which has to be overcome to help re-define human existence--overcoming self-destructive, bad conscience. To understand whether someone could (or even should) overcome and redefine his or her existence, (...) that is create good conscience like Nietzsche's Ubermensch, it is useful to consider the struggles of Allie Fox, the hero in Peter Weir's movie Mosquito Coast (1986). (shrink)

In spite of advances in medicine and public health, malaria and other mosquito‐borne diseases are on the rise worldwide. Although vaccines, genetically modified mosquitoes and safer insecticides are under development, herein we examine a promising new approach to malaria control through better repellents. Current repellents, usually based on DEET, inhibit host finding by impeding insect olfaction, but have significant drawbacks. We discuss how comparative genomics, using data from the Anopheles genome project, allows the rapid identification of members of three (...) protein classes critical to insect olfaction: odorant‐binding proteins, G‐protein‐coupled receptors, and odorant‐degrading enzymes. A rational design approach similar to that used by the pharmaceutical industry for drug development can then be applied to the development of products that interfere with mosquito olfaction. Such products have the potential to provide more complete, safer and longer lasting protection than conventional repellents, preventing disease transmission by interrupting the parasite life cycle. BioEssays 25:1011–1020, 2003. © 2003 Wiley Periodicals, Inc. (shrink)

For the purposes of conservation or suppression of species, gene drive technology has significant potential. Theoretically speaking, with the release of even relatively few animals with gene drive systems in an ecosystem, beneficial or harmful genes could be introduced into the entire wild-type population of that species. Given the profound impact that gene drives could have on species and ecosystems, their use is a highly contentious issue. Communities and groups have differing beliefs about nature and its conservation or preservation, as (...) well as concerns about the ecological safety of the eradication, replacement or enhancement of particular species of animals by means of genetic engineering. For all those reasons, the rigorous regulation of insects and other animals with gene drive systems is crucial. In this paper, we consider the question of whether the United States Food and Drug Administration is prepared to effectively regulate insects and other animals with gene drives. (shrink)

In the early 1970s, a World Health Organization‐initiated and United States‐funded project released lab‐reared mosquitoes outside New Delhi in the first large‐scale field trials of the genetic control of mosquitoes. Despite partnering with the Indian Council of Medical Research and investing significantly in outreach to local communities at the release sites, the project was embroiled in controversy and became an object of vehement debate within the Indian parliament and diplomatic contretemps between the United States and India. This early (...) episode of genetic control research demonstrates how a scientific collaboration was entangled in geopolitics and shaped by the legacy of colonialism. This historical case study has implications for public deliberation in the present, pointing to the challenges of shared decision‐making in the context of structural inequality, the way that a backdrop of military interest in a technology can impede trust, and the long‐term consequences of projects that foster mistrust. (shrink)

Each year, over 200 million people are infected with the malaria parasite, nearly half a million of whom succumb to the disease. Emerging genetic technologies could, in theory, eliminate the burden of malaria throughout the world by intentionally eradicating the mosquitoes that transmit the disease. In this paper, we offer an ethical examination of the intentional eradication of Anopheles gambiae, the main malaria vector of sub-Saharan Africa. In our evaluation, we focus on two main considerations: the benefit of alleviating (...) the malaria burden, and the loss of value that would accompany the eradication of the species. We outline a typology of the different ways in which species are valued or could be valuable, then use that typology to appraise the value of the species in question. We argue that Anopheles gambiae has minor (and redundant) instrumental value, little final subjective value and no objective final value. (shrink)

English: Effective altruism has focused on moral efficiency, i.e. the ratio of the resources used (money, time ...) to the moral benefit achieved, in addition to the extent of our moral commitment, and has called for the maximum efficiency of moral commitment. This raises two questions, among others, which are the subject of this paper: 1. How does one calculate moral efficiency? 2. Is maximum moral efficiency the right moral decision-making criterion? In the article, efficiency calculations of donations for two (...) charitable projects are presented in detail (question 1): distribution of mosquito nets in malaria areas in sub-Saharan Africa and maintenance of a children's village in Guatemala. The result is that the children's village project is clearly less efficient. Should it therefore be abandoned, although it seems to be a very useful project (question 2)? (shrink)

We present the results of a field study led in 2009 and aiming at a better understanding of the activity of the mosquito control workers of the EID Atlantique in the wetlands of the French Atlantic seaboard (from Morbihan to Gironde). First, we endeavor to characterize their context of work, in ecological terms as well as in social ones. Then, we propose a modelling of their activity, which brings to light in an original way its important social component: their work (...) consists in maintaining, in the areas they take care of, an ecological equilibrium minimizing the proliferation of mosquitos; but it also consists in maintaining a social equilibrium, which aims at the satisfaction of all the users they are dealing with (salt workers, oyster farmers, cattle breeders, members of hunting associations and naturalist associations, hikers, and walkers). (shrink)

Cas9/guide RNA (gRNA)‐based gene drive systems are expected to play a transformative role in malaria elimination efforts., whether through population modification, in which the drive system contains parasite‐refractory genes, or population suppression, in which the drive system induces a severe fitness load resulting in population decline or extinction. DNA sequence polymorphisms representing alternate alleles at gRNA target sites may confer a drive‐resistant phenotype in individuals carrying them. Modeling predicts that, for observed levels of SGV at potential target sites and observed (...) rates of de novo DRA formation, population modification strategies are uniquely resilient to DRAs. We conclude that gene drives can succeed when fitness costs incurred by drive‐carrying mosquitoes are low enough to prevent strong positive selection for DRAs produced de novo or as part of the SGV and that population modification strategies are less prone to failure due to drive resistance. (shrink)

Generic generalizations such as ‘mosquitoes carry the West Nile virus’ or ‘sharks attack bathers’ are often accepted by speakers despite the fact that very few members of the kinds in question have the predicated property. Previous work suggests that such low-prevalence generalizations may be accepted when the properties in question are dangerous, harmful, or appalling. This paper argues that the study of such generic generalizations sheds light on a particular class of prejudiced social beliefs, and points to new ways (...) in which those beliefs might be undermined and combatted. (shrink)

Generic sentences (e.g., bare plural sentences such as “dogs have four legs” and “mosquitoes carry malaria”) are used to talk about kinds of things. Three experiments investigated the conceptual foundations of generics as well as claims within the formal semantic approaches to generics concerning the roles of prevalence, cue validity and normalcy in licensing generics. Two classes of generic sentences that pose challenges to both the conceptually based and formal semantic approaches to generics were investigated. Striking property generics (e.g. (...) “sharks bite swimmers”) are true even though only a tiny minority of instances have the property and thus pose obvious problems for quantificational approaches, and they also do not seem to characterize kinds in terms of the principled or statistical connections investigated in previous research ( Prasada and Dillingham, 2006 ; Prasada and Dillingham, 2009). The second class — minority characteristic generics (e.g. “ducks lay eggs”) — also poses serious problems for quantificational accounts, and appears to involve principled connections even though fewer than half of its instances have the relevant property. The experiments revealed three principal discoveries: first, striking generics involve neither principled nor statistical connections. Instead, they involve a causal connection between a kind and a property. Second, minority characteristic generics exhibit the characteristics of principled connections, which suggests that principled connections license the expectation that most instances will have the property, but do not require it. Finally, the experiments also provided evidence that prevalence and the acceptability of generics may be dissociated and provided data that are problematic for normalcy approaches to generics, and for the idea that cue validity licenses low prevalence generics. As such, the studies provided evidence in favor of a conceptually based approach to the semantics of generics ( Leslie, 2007 ; Leslie, 2008; see also Carlson, 2009). (shrink)

Background: Dengue Disease is a mosquito-borne tropical disease caused by the dengue virus, symptoms typically begin three to fourteen days after infection. This may include a high fever, headache, vomiting, muscle and joint pains, and a characteristic skin rash. Dengue serology is applied in different settings, such as for surveillance, in health care facilities in endemic areas and in travel clinics in non-endemic areas. The applicability and quality of serological tests in dengue endemic regions has to be judged against a (...) background of potential cross reactivity with other flavi-viruses, difficulties in distinguishing primary from secondary infections and technological problems related to the fact that most dengue endemic regions are relatively poor of resources .Objectives: to help doctors and patients in diagnosing Dengue Disease and give them the information of how to prevent Dengue Disease and to be able to understand the signs and symptoms of Dengue Disease. Methods: We collected all relevant material for Dengue Disease. Then we designed and implemented a knowledge based system for diagnosing Dengue Disease using SL5 Object Language. Results: The knowledge based system was evaluated by a group of Patients and specialized doctors and they found it very friendly and easy to use. (shrink)

The discovery of traces of a blood meal in the abdomen of a 50‐million‐year‐old mosquito reminds us of the insights that the chemistry of fossils can provide. Ancient DNA is the best known fossil molecule. It is less well known that new fossil targets and a growing database of ancient gene sequences are paralleled by discoveries on other classes of organic molecules. New analytical tools, such as the synchrotron, reveal traces of the original composition of arthropod cuticles that are more (...) than 400 my old. Pigments such as melanin are readily fossilized, surviving virtually unaltered for ∼200 my. Other biomarkers provide evidence of microbial processes in ancient sediments, and have been used to reveal the presence of demosponges, for example, more than 635 mya, long before their spicules appear in the fossil record. Ancient biomolecules are a powerful complement to fossil remains in revealing the history of life. (shrink)

Ducks lay eggs' is a true sentence, and `ducks are female' is a false one. Similarly, `mosquitoes carry the West Nile virus' is obviously true, whereas `mosquitoes don't carry the West Nile virus' is patently false. This is so despite the egg-laying ducks' being a subset of the female ones and despite the number of mosquitoes that don't carry the virus being ninety-nine times the number that do. Puzzling facts such as these have made generic sentences defy (...) adequate semantic treatment. However complex the truth conditions of generics appear to be, though, young children grasp generics more quickly and readily than seemingly simpler quantifiers such as `all' and `some'. I present an account of generics that not only illuminates the strange truth conditions of generics, but also explains how young children find them so comparatively easy to acquire. I then argue that generics give voice to our most cognitively primitive generalizations and that this hypothesis accounts for a variety of facts ranging from acquisition patterns to cross-linguistic data concerning the phonological articulation of operators. I go on to develop an account of the nature of these cognitively fundamental generalizations and argue that this account explains the strange truth-conditional behavior of generics. (shrink)

Faced with the ambiguities of this world, in which ugliness and suffering co-exist with beauty, the article rejects the attribution of disvalues to a Fall-event. Instead it faces God's involvement even in violence and ugliness. It explores the concept of divine glory, understood principally as a sign of the divine reality. This includes both the great theophanies of the Hebrew Bible and Jesus’ glorification in his Passion and Crucifixion. It then considers the contemplation of the natural world, using the terminology (...) of “inscape” and “instress.” Divine glory can be discerned even in events as tragic as the Indian Ocean tsunami or the activity of the malarial mosquito. A full Christian contemplation of these events will include scientific understanding and poetic apprehension, and consideration of soteriology and eschatology as well as the theology of creation. Glory is understood to include God's power and sovereignty, and also the divine humility and sacrifice. (shrink)

New techniques for the genetic modification of organisms are creating new strategies for addressing persistent public health challenges. For example, the company Oxitec has conducted field trials internationally—and has attempted to conduct field trials in the United States—of a genetically modified mosquito that can be used to control dengue, Zika, and some other mosquito-borne diseases. In 2016, a report commissioned by the National Academies of Sciences, Engineering, and Medicine discussed the potential benefits and risks of another strategy, using gene drives. (...) Driving a desired genotype through a population of wild animals or insects could lead to irreversible genetic modification of an entire species. The NASEM report recommends community, stakeholder, and public engagement about potential uses of the technology, and it argues that the engagement should occur as research advances, well before gene drives are deployed. Yet what “engagement” means in practice is unclear. This article seeks clarity on this problem by offering a justification for community engagement and drawing out implications of this argument for the implementation and desired outcomes of community engagement. Community engagement is essential when it comes to research that would release genetically modified insects or animals into the environment. By contrast, obtaining informed consent from people who live near such a proposed field trial is neither necessary nor sufficient. Drawing on the epistemic and moral arguments for deliberative democracy, I propose two discrete mechanisms of community engagement: community advisory boards and deliberative forums, neither of which has been systematically incorporated into research governance. The proposed mechanisms would engender respect for persons who live near field trials, even when the results of deliberation override some individuals’ preferences. Community engagement foregrounds the community in our thinking about humans’ relationship to nature, and it implies that deciding to release genetically modified insects or animals into the wild ought to be a collective decision, not one made by product developers, policy-makers, private companies, research funders, or scientists alone. (shrink)

Like others who work in philosophy, I asked myself from time to time what I was trying to do in my philosophizing. The natural answer seemed to be that I was trying to understand the world, and to do so by taking any thing or event that puzzled me and pressing the question Why? till I arrived at the understanding I sought. And what does understanding anything mean? It means to explain it or to render it intelligible. And when does (...) it become intelligible? Only when it is seen in context, and seen as required by that context. This requirement is of various kinds. Sometimes it is causal, as when an attack of malaria is explained by the bite of the anopheles mosquito. Sometimes it is a means-end relation, as when the presence of a rudder is explained as a means of guiding a ship. Sometimes it is logical, as when the Pythagorean theorem is explained by showing that it follows necessarily from other accepted propositions of geometry. (shrink)

On December 18, 2014, a yellow female fly quietly emerged from her pupal case. What made her unique was that she had only one parent carrying a mutant allele of this classic recessive locus. Then, one generation later, after mating with a wild‐type male, all her offspring displayed the same recessive yellow phenotype. Further analysis of other such yellow females revealed that the construct causing the mutation was converting the opposing chromosome with 95% efficiency. These simple results, seen also in (...) mosquitoes and yeast, open the door to a new era of genetics wherein the laws of traditional Mendelian inheritance can be bypassed for a broad variety of purposes. Here, we consider the implications of this fundamentally new form of “active genetics,” its applications for gene drives, reversal and amplification strategies, its potential for contributing to cell and gene therapy strategies, and ethical/biosafety considerations associated with such active genetic elements. (shrink)

Approximately a quarter of a billion people around the world suffer from malaria each year. Most cases are located in sub-Saharan Africa where Anopheles gambiae mosquitoes are the principal vectors of this public health problem. With the use of CRISPR-based gene drives, the population of mosquitoes can be modified, eventually causing their extinction. First, we discuss the moral status of the organism and argue that using genetically modified mosquitoes to combat malaria should not be abandoned based on (...) some moral value of A. gambiae. Secondly, we argue that environmental impact studies should be performed to obtain an accurate account of the possible effects of a potential eradication of the organism. However, the risks from the purposeful extinction of A. gambiae should not overtake the benefits of eradicating malaria and risk assessments should be used to determine acceptable risks. Thirdly, we argue that the eventual release of the genetically modified mosquitoes will depend on transparency, community involvement, and cooperation between different nations. (shrink)