2,191 research outputs found
Kepler-210: An active star with at least two planets
We report the detection and characterization of two short-period,
Neptune-sized planets around the active host star Kepler-210. The host star's
parameters derived from those planets are (a) mutually inconsistent and (b) do
not conform to the expected host star parameters. We furthermore report the
detection of transit timing variations (TTVs) in the O-C diagrams for both
planets. We explore various scenarios that explain and resolve those
discrepancies. A simple scenario consistent with all data appears to be one
that attributes substantial eccentricities to the inner short-period planets
and that interprets the TTVs as due to the action of another, somewhat longer
period planet. To substantiate our suggestions, we present the results of
N-body simulations that modeled the TTVs and that checked the stability of the
Kepler-210 system.Comment: 8 pages, 8 Encapsulated Postscript figure
Neo-republicanism as a route to animal non-domination
In this article, we reinterpret the current political turn in animal rights theory in terms of republican as opposed to liberal political theory. By appealing to the values of liberty and fraternity as well as equality, we argue for a conception of animal liberation from human domination and not from humanity per se. This establishes a basis of liberty and fraternity in our cooperative relationships with animals in a "zoopolis," or interspecies political community. We contend that such a basis for interspecies political cooperation is not available on the more traditional model of animal liberation, where rights are derived from weak equality of the species
Skill or Slaughter in ‘Fair Chase:’ What does Animal Resistance Tell us about Modern Sports Hunting
In philosophy of sport, the internal justification for sports hunting is often that the chase empowers hunters to become skilled performers. However, this internal justification for sport hunting is challenged by two factors. One is the growing awareness that the hunted non-human animals themselves are skilled performers, demonstrating agency is resisting their hunters. Another is that recent developments in hunting practice undermine the internal justification by reducing the necessity for hunters to refine their performance skills, in effect allowing them to rely on technology and shortcuts in place of sportsmanship. Both factors reveal important justificatory deficits in modern sports hunting as closer to slaughter than skill
Are Illegal Direct Actions by Animal Rights Activists Ethically Vigilante?
Constructed as terrorist, illegal direct actions by animal rights activists have become the subject of draconian law enforcement measures in the US and UK. Some scholars respond to this phenomenon by interpreting such actions to protect vulnerable animals not as terrorist but civilly disobedient. This approach highlights their ethical character, as a normatively relevant consideration in the state’s law enforcement response. Consistent with this approach, we argue that illegal direct actions by animal rights activists are not terrorist, although their motivations are sometimes anti-statist and anarchist. However, we also argue that civil disobedience is an awkward fit for many such actions. Consequently, we explore a different approach. Instead, we consider illegal direct actions to protect vulnerable animals in light of a concept of ethical vigilantism. This permits us to acknowledge how these actions often dis-align from civil disobedience, while also allowing us to insist their ethical motivations remains normatively relevant considerations for the state
Wild-But-Not-Too-Wild Animals: Challenging Goldilocks Standards in Rewilding
Rewilding is positioned as ‘post’-conservation through its emphasis on unleashing the autonomy of natural processes. In this paper, we argue that the autonomy of nature rhetoric in rewilding is challenged by human interventions. Instead of joining critique toward the ‘managed wilderness’ approach of rewilding, however, we examine the injustices this entails for keystone species. Reintroduction case studies demonstrate how arbitrary standards for wildness are imposed on these animals as they do their assigned duty to rehabilitate ecosystems. These ‘Goldilocks’ standards are predicated on aesthetic values that sanction interventions inconsistent with the premise of animal sovereignty. These include culling, relocations and sterilizations of animals that demonstrate the kind of autonomy championed in rewilding rhetoric. Drawing from Donaldson and Kymlicka’s framework for political animal categories, we conclude by arguing that rewilding needs to re-position itself in one of two ways. Either it should align itself more closely to mainstream conservation and embrace full animal sovereignty without Goldilocks conditions, or it should commit to taking full responsibility for reintroduced animals, including supplementary feeding and care
Generalized Robba rings
We prove that any projective coadmissible module over the locally analytic
distribution algebra of a compact -adic Lie group is finitely generated. In
particular, the category of coadmissible modules does not have enough
projectives. In the Appendix a "generalized Robba ring" for uniform pro-
groups is constructed which naturally contains the locally analytic
distribution algebra as a subring. The construction uses the theory of
generalized microlocalization of quasi-abelian normed algebras that is also
developed there. We equip this generalized Robba ring with a self-dual locally
convex topology extending the topology on the distribution algebra. This is
used to show some results on coadmissible modules.Comment: with an appendix by Peter Schneider; revised; new titl
Scheduling non-urgent patient transportation while maximizing emergency coverage
Many ambulance providers operate both advanced life support (ALS) and basic life support (BLS) ambulances. Typically, only an ALS ambulance can respond to an emergency call, whereas non-urgent patient transportation requests can be served by either an ALS or a BLS ambulance. The total capacity of BLS ambulances is usually not enough to fulfill all non-urgent transportation requests. The remaining transportation requests then have to be performed by ALS ambulances, which reduces the coverage for emergency calls. We present a model that determines the routes for BLS ambulances while maximizing the remaining coverage by ALS ambulances. Different from the classical dial-a-ride problem, only one patient can be transported at a time, and not all requests are known in advance. Throughout the day, new requests arrive, and we present an online model to deal with these requests
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