ABSTRACT Real-time graphical interval logic is a modal logic for reasoning about time in which the basic modality is the interval. The logic differs from other logics in that it has a natural intuitive graphical representation that resembles the timing diagrams drawn by system designers. We have developed an automted deduction system for the logic, which includes a theorem prover and a user interface. The theorem prover checks the validity of proofs in the logic and produces counterexamples to invalid proofs. (...) The user interface includes a graphical editor that enables the user to create graphical formulas on a workstation display, and a database and proof manager that tracks proof dependencies and allows graphical formulas to be stored and retrieved. In this paper we describe the logic, the automated deduction system, and an application to robotics. (shrink)

Background: Debates over legalisation of physician-assisted suicide or euthanasia often warn of a “slippery slope”, predicting abuse of people in vulnerable groups. To assess this concern, the authors examined data from Oregon and the Netherlands, the two principal jurisdictions in which physician-assisted dying is legal and data have been collected over a substantial period.Methods: The data from Oregon comprised all annual and cumulative Department of Human Services reports 1998–2006 and three independent studies; the data from the Netherlands comprised all four (...) government-commissioned nationwide studies of end-of-life decision making and specialised studies. Evidence of any disproportionate impact on 10 groups of potentially vulnerable patients was sought.Results: Rates of assisted dying in Oregon and in the Netherlands showed no evidence of heightened risk for the elderly, women, the uninsured , people with low educational status, the poor, the physically disabled or chronically ill, minors, people with psychiatric illnesses including depression, or racial or ethnic minorities, compared with background populations. The only group with a heightened risk was people with AIDS. While extralegal cases were not the focus of this study, none have been uncovered in Oregon; among extralegal cases in the Netherlands, there was no evidence of higher rates in vulnerable groups.Conclusions: Where assisted dying is already legal, there is no current evidence for the claim that legalised PAS or euthanasia will have disproportionate impact on patients in vulnerable groups. Those who received physician-assisted dying in the jurisdictions studied appeared to enjoy comparative social, economic, educational, professional and other privileges. (shrink)

Oxford Scholarly Classics is a new series that makes available again great academic works from the archives of Oxford University Press. Reissued in uniform series design, the reissues will enable libraries, scholars, and students to gain fresh access to some of the finest scholarship of the last century.

1. Hŏryŏng, t'ŏng piŏ yŏnghwarhan maŭm -- 2. Ajik tŭrŏnaji anŭn maŭm esŏ chigak i kanŭng han'ga -- 3. Mibal kwa kijil ŭn ŏttŏn kwan'gye in'ga -- 4. Umjiginŭn maŭm kwa koyohan maŭm -- 5. Chigak ŭi sŏnggyŏk kwa kŭ yŏnwŏn e kwanhan munje.

A Papyrus commentary on Alcman published in 19571 brings us news of a poem in which Alcman “physiologized”. The lemmata and commentary together witness to a semi-philosophical cosmogony unlike any other hitherto known from Greece. The evidence is meagre, but it seems worth while to see what can be made of it; for it is perhaps possible to go a little farther than has so far been done.

Peace is a hallmark of human societies. However, certain ant species engage in long-term intergroup resource sharing, which is remarkably similar to peace among human groups. We discuss how individual and group payoff distributions are affected by kinship, dispersal, and age structure; the challenges of diagnosing peace; and the benefits of comparing convergent complex behaviours in disparate taxa.

Histories of literature tend to treat Stesichorus as just one of the lyric poets, like Alcman or Anacreon. But the vast scale of his compositions puts him in a category of his own. It has always been known that his Oresteia was divided into more than one book; P. Oxy, 2360 gave us fragments of a narrative about Telemachus of a nearly Homeric amplitude; and from P. Oxy. 2617 it was learned that the Geryoneis contained at least 1,300 verses, the (...) total being perhaps closer to two thousand. Even allowing for the shorter lines, this was as long as many an epic poem. Indeed, these were epic poems, in subject and style as well as in length: epics to be sung instead of recited. What was behind them ? Who was this Stesichorus, and how did he come to be, in Quintilian's phrase, ‘sustaining on the lyre the weight of epic song’ ? The biographical problem must be tackled first. The question of Stesichorus’ historical setting and date is confused by legendary elements as well as by contradiction in the sources. On the whole scholars remain spellbound by the specious precision of the Suda's dates , although it has long been realized that they are founded on nothing but the assumption that Stesichorus was younger than Alcman and older than Simonides. There have been excellent discussions by Wilamowitz and Maas, but they seem to have had little influence. (shrink)

Résumé : Le PPBS a été conçu comme un instrument destiné à ceux qui décident de l'allocation des ressources publiques : il doit leur permettre de prendre de meilleures décisions. S'il est très difficile de repérer et de juger les choix que le développement du système a inspirés aux Etats-Unis, il n'en est pas mains certain que ses résultats tangibles sant maigres car la masse des anciens programmes, principale source potentielle de moyens nouveaux, n'a guère été remise en question.La valeur (...) intrinsèque du PPBS ne peut être mise en cause. Ce qui doit l'être, c'est la lenteur de son développement, qui demeure peu avancé. Cette lenteur s'explique, car le système ne peut produire des fruits dans une terre stérile qu'on n'a pas préparée.La brutalité et les maladresses de l'opération déclenchée en 1965 dans le gouvernement fédéral américain ne pouvaient que renforcer la résistance au changement et retarder, sinon compromettre, le succès final. Les perspectives demeurent heureusement favorables, puisque la nouvelle administration ne semble pas décidée à faire machine arrière et que les Etats et Villes ont démarré sous de bien meilleurs auspices.La principale conclusion qu'imposent les expériences américaines est que toute juridiction intéressée par le PPBS doit impérativement développer, de la façon la plus générale, la volonté d'instaurer le système et s'assurer les moyens de le faire. C'est dire qu'il est peu sage d'engager la bataille sur tous les fronts à la fois : il faut tenter des percées. Mais c'est dire aussi combi en l'information et la formation sant essentielles. A cet égard, l'installation généralisée de certains éléments du système, à savoir la structure de programmes et le budget-programme, loin de présenter des inconvénients, peut constituer un excellent exercice en dehors de son utilité directe pour le preneur de décision. La bataille en cause est surtout celle de la conviction: l'outil est prêt, il est bon, encore faut-il que l' ouvrier accepte de s'en servir.Samenvatting:Planning-programming-budgeting werd ontworpen als een instrument voor diegenen die beslissen over de toewijzing van de overheidsmiddelen.Dit instrument moet de beslissers in staat stellen betere beslissingen te treffen. Het is niet makkelijk deze beslissingen op te sporen en te beoordelen welke in de Verenigde Staten getroffen werden onder invloed van de ontwikkeling van deze systeembenadering. Toch is het met vrij grote zekerheid te stellen dat de tastbare resultaten gering zijn omdat de veelheid aan oude programma's die tenslotte toch de voornaamste potentiële bronnen zijn van nieuwe middelen, nooit werden aangevochten.De intrinsieke waarde van PPBS kan daarom evenwel niet worden genegeerd. Wat wel dient aangeklaagd is de traagheid van zijn aanslepende ontwikkeling. Deze traagheid is te verklaren door het feit dat het systeem slechts vruchten kan afwerpen zo het ingeplant wordt in degelijk voorbereid terrein.De brutaliteit en de onhandigheden bij de operatie die in 1965 werd ingezet in het amerikaans federaal overheidsbestel konden niets anders dan de weerstand tegen de verandering versterken en afbreuk doen aan het uiteindelijk slagen van het systeem. Gelukkiglijk blijven de vooruitzichten gunstig want de nieuwe beleidsvoerders sinds de presidentsverkiezingen, blijken ermee te willen doorgaan en de staten en lokale overheden zijn ermee van wal gestoken onder veel betere omstandigheden. Het doorslaggevend besluit uit de amerikaanse ervaringen terzake is wel dat elke instantie welke belangstelling heeft voor PPBS, nodig moet op zo breed mogelijk vlak de wil doen groeien om het systeem te ontwikkelen en er ook de nodige middelen toe ter beschikking stellen. Dit betekent tevens dat het weinig aan te bevelen is de strijd op alle fronten terzelvertijd aan te binden maar wel geleidelijk doorbraken te verwezenlijken. Dit brengt dan evenwel ook met zich dat informatie en vorming essentieel zijn bij deze strategie. In dit verband moet dan ook gezegd worden dat reeds het invoeren van sommige deelementen van het systeem, zoals de programmastructuur en het programmabudget, voor de beslisser nuttig kan zijn voor zijn persoonlijk inzicht en vorming.De te voeren actie dient nog slechts te worden toegespitst op het overtuigen van de verantwoordelijken. Het instrument is immers gebruiksklaar en degelijk, er is alleen nog het wachten op de wil van de gebruiker dit instrument ter hand te nemen. (shrink)

A Papyrus commentary on Alcman published in 19571 brings us news of a poem in which Alcman “physiologized”. The lemmata and commentary together witness to a semi-philosophical cosmogony unlike any other hitherto known from Greece. The evidence is meagre, but it seems worth while to see what can be made of it; for it is perhaps possible to go a little farther than has so far been done.

The work of many scholars in the last hundred years has helped us to understand the nature and origins of the treatise which we know for short as the Contest of Homer and Hesiod. The present state of knowledge may be summed up as follows. The work in its extant form dates from the Antonine period, but much of it was taken over bodily from an earlier source, thought to be the Movaelov of Alcidamas. Some of the verses exchanged in (...) the contest were current even earlier, and some scholars have supposed that the story of a contest went back to the fifth, sixth, or even eighth century; but this is now much doubted. (shrink)

I shall argue for two complementary theses: firstly that ‘Homer’ was not the name of a historical poet, but a fictitious or constructed name, and secondly that for a century or more after the composition of the Iliad and Odyssey there was little interest in the identity or the person of their author or authors. This interest only arose in the last decades of the sixth century; but once it did, ‘Homer’ very quickly became an object of admiration, criticism, and (...) biographical construction. (shrink)

In the long section of anapaests with which they make their entry, the old men of Argos methodically deliver three essential messages to the audience: 40–71. It is the tenth year of the Trojan War. 72–82. We are men who were too old to go and fight in it. 83–103. Some new situation seems to be indicated by the fact that Clytemnestra is organizing sacrifices throughout the town.

Objectives: To study the consent process experienced by participants who are enrolled in a molecular genetic research study that aims to find new genetic mutations responsible for an apparently inherited disorder.Design: Semi-structured interviews and analysis/description of main themes.Participants: 78 members of 52 families who had been recruited to a molecular genetic study.Results: People were well informed about the goals, risks and benefits of the genetic research study but could not remember the consent process. They had mostly been recruited to take (...) part by trusted clinicians or their relatives but had little memory of, or concern about signing consent forms. Families appeared to regard the research as a continuation of their, or their relatives’, clinical care.Conclusions: Ethical review should be more flexible in its attitude to consent forms and written information sheets for some sorts of research. For rare genetic disease studies where research has been discussed fully within the clinical setting then the consent obtained at that time could suffice rather than needing extra consent at a later stage. However, clinician-researchers will need to ensure that their duty of care extends for the duration of the research and beyond. (shrink)

It is generally accepted that the Homeric Hymn to Apollo was not conceived as a single poem but is a combination of two: a Delian hymn, D, performed at Delos and concerned with the god's birth there, and a Pythian hymn, P, concerned with his arrival and establishment at Delphi. What above all compels us to make a dichotomy is not the change of scene in itself, but the way D ends. The poet returns from the past to the present, (...) and takes leave of his audience; farewell, he says, and remember me ever after. He is quite clearly finishing. Whereupon there is an abrupt and unsatisfactory transition to P. (shrink)

Objective—To explore the opinions of unpaid healthy volunteers on the payment of research subjects.Design—Prospective cohort.Setting—Southern Alberta, Canada.Participants—Medically eligible persons responding to recruiting advertisements for a randomised vaccine trial were invited to take part in a study of informed consent at the point at which they formally consented or refused trial participation. Of 72 invited, 67 returned questionnaires at baseline and 54 at follow-up.Outcome measures—Proportions of persons who agreed or disagreed with three close-ended statements on the payment of research subjects; themes (...) and categories identified by content analysis of responses to an open-ended question.Results—A minority agreed with paying either patient or healthy volunteer participants. Opinions did not change over time. Participants' comments addressed: benefits and drawbacks to research participation; benefits and drawbacks to paying research participants; conditions under which payment of research subjects would be acceptable, and the nature of acceptable recognition. Acceptable conditions were to improve problematic recruitment, to reimburse costs, and to recognise participants, particularly for their time investment. Both non-monetary and monetary recognition of volunteers were thought to be appropriate.Conclusions—Most unpaid volunteers disagreed with paying research participants. The themes arising from their comments are similar to those that have been raised by ethicists and suggest that recognising the time and effort of participants should receive greater emphasis than presently occurs. (shrink)

They used to believe that mankind began in 4004 B.C. and the Greeks in 776. We now know that these last five thousand years during which man has left written record of himself are but a minute fraction of the time he has spent developing his culture. We now understand that the evolution of human society, its laws and customs, its economics, its religious practices, its games, its languages, is a very slow process, to be measured in millennia. In the (...) case of Greek religious usage it is now appreciated that it has its roots not in Mycenaean but in Palaeolithic times. As for Greek poetry, comparative studies have shown that it goes back by a continuous tradition to Indo-European poetry. (shrink)

City archives, mined by Aristotle for his Didaskaliai, preserved a reasonably complete record of dramatic productions in the fifth century. But how far back did these archives go? The so-called Fasti, an inscription set up c. 346 and listing dithyrambic, comic and tragic victors year by year, must have been based on the same archives, but went back, it is thought, only as far as 502/1. Its heading πρ]τον κμοι ἦσαν τ[ι διονσ]ωι τραγωιδο δ[, however supplemented, implies an intention of (...) going back to the beginning of things, in other words to the beginning of the archival record. This raises serious doubt as to whether that record went back to the alleged date of Thespis' première, or indeed to those given for Choerilus' and Phrynichus'. (shrink)

This reference contains more than 600 cross-referenced dictionary entries on utopian thought and experimentation that span the centuries from ancient times to the present.

Maternity careproviders often have strong views concerning a woman’s choice of where to give birth. These views may be based on the ethical principle of autonomy, or on the principle of beneficence. The authors propose that an approach utilizing shared decision making allows careproviders and women to move beyond disagreements regarding which evidence on risk should “count,” instead adopting a process of increased knowledge and support for women and their partner while they make choices regarding place of birth.

By the colours and decoration of a vase fragment one determines the period and style to which the original belonged; while its physical contours show from what part of the original it comes. The material may be insufficient for a reconstruction of the whole design. But it is often legitimate to go beyond what is actually contained in the preserved pieces.

Several of the treatises and lectures that make up the Hippocratic corpus begin with more or less extended statements about the physical composition and operation of the world at large, and approach the study of human physiology from this angle. We see this, for example, in De Natwra Hominis, De Flatibus, De Carnibus, De Victu; it was the approach of Alcmaeon of Croton, Diogenes of Apollonia, and according to Plato of Hippocrates himself. The work known as De Hebdomadibus would appear (...) to be a prime example of the type. The first twelve chapters are cosmological. They are dominated by two ideas: that everything in nature is arranged in groups of seven, and that the human body is constructed on the same pattern as the whole world. In the later part of the book we pass to the subject of fevers, their causation and treatment. But as Roscher observed, the cosmology and the pathology do not belong together. (shrink)

Catalexis was the subject of an important recent article by L. P. E. Parker. There is one particular aspect of it that she does not touch, and that ought not to be left out of account: its presumable Indo-European origins. Consideration of this aspect leads to the drawing of distinctions which otherwise tend to escape notice.

In CQ 20 , 277–87, 1 argued for dating Corinna to the third century B.C. In my Greek Metre , p. 141, I continued to assume this date, observing that not everyone accepted it but that I knew of no attempt to answer my arguments. I must confess to having overlooked at least one such attempt, by A. Allen in CJ 68 , 26–8; and now M. Davies has mounted another in SIFC 81 , 186–94, largely repeating Allen's points but (...) with some new touches. Allen upholds the traditional fifth-century date. Davies has yet to come to a decision, but meanwhile he is eager to discredit what he regards as an unsatisfactory case for a Hellenistic dating. (shrink)

The paper is concerned with explaining some of the principal theoretical developments in elementary particle physics and discussing the associated methodological problems both in respect of heuristics and appraisal. Particular reference is made to relativistic quantum field theory, renormalization, Feynman diagram techniques, the analytic S-matrix and the Chew — Frautschi bootstrap.