268 research outputs found

    Justice and predictability in torts

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    Recent reexaminations of the principles of tort liability have entertained two possible rationales for the fault principle, one "moral" and the other economic. Neither is satisfactory. I propose here a third rationale and show how it suffices to refute at least some of the challenges to the negligence system. The character of this rationale is causal, and the central thesis of this paper is that in as much as the tort system should aim to place the costs of accidents on the source of those accidents, then we have not yet found an acceptable alternative to the negligence system. This thesis is defended and developed through a reexamination of some recent theories of strict liability and reflection on some of what has been said about the role of causation in torts. A backdrop to the entire discussion is the question of how one might best ensure that potential defendants will be able to predict with reasonable certainty which courses of action will make them liable, should damages ensue

    The contribution of Nicomachean ethics iii5 to Aristotle's theory of responsibility

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    This paper develops a radical reinterpretation of the argument in Nicomachean Ethics iii 5 concerning responsibility for character. I argue that what is at stake is the new standard of liability Aristotle is introducing there, the so-called "negligence" standard, and that the scope of the discussion is limited to the class of agents who are negligent through an inability to take care. Thus, I argue, there is no claim being made that in general responsibility for acts requires responsibility for character

    Explanations reconsidered

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    Edna Ullmann-Margalit .introduced the notion of an invisiblehand explanation (I-H explanation) to the philosophical literature in 1978, and made a distinction between "aggregate" and "functional-evolutionary" (F-E) forms of I -H explanations. The present paper produces a substantially refined analysis of the forms and functions of I-H explanations. Sections (1) and (2) introduce the ideas of I-H and aggregate I-H explanation, respectively. Section (J) argues that no one form of explanation can serve the explanatory fUnctions Ullmann-Margalit attributes to aggregate explanations, and divides those explanatory functions between genetic and "systematic-dispositional" explanations. Section (4) identifies difficulties with the idea of F-E explanation in the social realm, and shows that any I-H explanations fitting the P-E mold would constitute simply a special class of "aggregate" explanation

    Thermal anomalies of the transmitter experiment package on the communications technology satellite

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    The causes of four temporary thermal-control-system malfunctions that gave rise to unexpected temperature excursions in the 12-gigahertz, 200-watt transmitter experiment package (TEP) on the Communications Technology Satellite were investigated. The TEP consists of a nominal 200-watt output stage tube (OST), a supporting power-processing system (PPS), and a variable-conductance heat-pipe system (VCHPS). The VCHPS, which uses three heat pipes to conduct heat from the body of the OST to a radiator fin, was designed to maintain the TEP at safe operating temperatures at all operating conditions. On four occasions during 1977, all near the spring and fall equinoxes, the OST body temperature and related temperatures displayed sudden, rapid, and unexpected rises above normal levels while the TEP was operating at essentially constant, normal conditions. The temperature excursions were terminated without TEP damage by reducing the radio frequency (RF) output power of the OST. Between the anomalies and since the fourth, the thermal control system has apparently functioned as designed. The results indicate the most probable cause of the temperature anomalies is depriming of the arteries in the variable-conductance heat pipes. A mode was identified in which the TEP, as presently configured, may operate with stable temperatures and with minimum change in performance level

    Invisible-Hand Explanations Reconsidered

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    Edna Ullmann-Margalit introduced the notion of an invisible hand explanation (I-H explanation) to the philosophical literature in 1978, and made a distinction between "aggregate" and "functional-evolutionary" (F-E) forms of I-H explanations. The present paper produces a substantially refined analysis of the forms and functions of I-H explanations. Sections (1) and (2) introduce the ideas of I-H and aggregate I-H explanation, respectively. Section (J) argues that no one form of explanation can serve the explanatory functions Ullmanri-Margalit attributes to aggregate explanations, and divides those explanatory functions between genetic and "systematic-dispositional" explanations. Section (4) identifies difficulties with the idea of F-E explanation in the social realm, and shows that any I-H explanations fitting the F-E mold would constitute simply a special class of "aggregate" explanation

    Ion sputter textured graphite

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    A specially textured surface of pyrolytic graphite exhibits extremely low yields of secondary electrons and reduced numbers of reflected primary electrons after impingement of high energy primary electrons. An ion flux having an energy between 500 eV and 1000 eV and a current density between 1.0 mA/sq cm and 6.0 mA/sq cm produces surface roughening or texturing which is in the form of needles or spines. Such textured surfaces are especially useful as anode collector plates in high efficiency electron tube devices

    Ion sputter textured graphite electrode plates

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    A specially textured surface of pyrolytic graphite exhibits extremely low yields of secondary electrons and reduced numbers of reflected primary electrons after impingement of high energy primary electrons. Electrode plates of this material are used in multistage depressed collectors. An ion flux having an energy between 500 iV and 1000 iV and a current density between 1.0 mA/sq cm and 6.0 mA/sq cm produces surface roughening or texturing which is in the form of needles or spires. Such textured surfaces are especially useful as anode collector plates in high tube devices

    Invisible-Hand Explanations Reconsidered

    Get PDF
    Edna Ullmann-Margalit introduced the notion of an invisible hand explanation (I-H explanation) to the philosophical literature in 1978, and made a distinction between "aggregate" and "functional-evolutionary" (F-E) forms of I-H explanations. The present paper produces a substantially refined analysis of the forms and functions of I-H explanations. Sections (1) and (2) introduce the ideas of I-H and aggregate I-H explanation, respectively. Section (J) argues that no one form of explanation can serve the explanatory functions Ullmanri-Margalit attributes to aggregate explanations, and divides those explanatory functions between genetic and "systematic-dispositional" explanations. Section (4) identifies difficulties with the idea of F-E explanation in the social realm, and shows that any I-H explanations fitting the F-E mold would constitute simply a special class of "aggregate" explanation
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