© 2016 Regents of the University of California.The Review summarizes much of particle physics and cosmology. Using data from previous editions, plus 3,062 new measurements from 721 papers, we list, evaluate, and average measured properties of gauge bosons and the recently discovered Higgs boson, leptons, quarks, mesons, and baryons. We summarize searches for hypothetical particles such as supersymmetric particles, heavy bosons, axions, dark photons, etc. All the particle properties and search limits are listed in Summary Tables. We also give numerous (...) tables, figures, formulae, and reviews of topics such as Higgs Boson Physics, Supersymmetry, Grand Unified Theories, Neutrino Mixing, Dark Energy, Dark Matter, Cosmology, Particle Detectors, Colliders, Probability and Statistics. Among the 117 reviews are many that are new or heavily revised, including those on Pentaquarks and Inflation. The complete Review is published online in a journal and on the website of the Particle Data Group. The printed PDG Book contains the Summary Tables and all review articles but no longer includes the detailed tables from the Particle Listings. A Booklet with the Summary Tables and abbreviated versions of some of the review articles is also available. (shrink)

Dans les premiers chants de l’ Enfer, Dante déclare entre les lignes la tâche à laquelle il se sent appelé en tant que « poète chrétien » : d’un côté, il est invité à argumenter avec la rigueur du discours scientifique les vérités fondamentales de la religion ; de l’autre côté, il lui est confié la charge d’entraîner le lecteur dans une lecture anagogique de ces vérités en recourant aux fascinations allégoriques de la poésie. En accomplissant cette mission, Dante obtiendra, (...) pour lui-même et pour les autres êtres humains, cette perfection anthropologique naturelle qui culmine, après la mort terrestre, par le retour aux conditions métaphysiques qui se seraient actualisées en la personne d’Adam s’il n’avait pas péché. Cette conception est déjà opérante dans certaines pages de la Vie nouvelle et du Banquet, mais c’est surtout dans La Divine Comédie que Dante en revient spontanément à ce genre de techniques sur un mode original et particulièrement efficace. On en a un exemple éclairant quand, au Chant III de l’ Enfer, la poésie décrit le tourbillon, apparemment disharmonieux et dépourvu de sens, des sons qui émergent de la cavité infernale, en se basant non seulement sur l’application évidente d’au moins deux artifices rhétoriques déterminés, mais surtout sur l’évocation formellement rigoureuse des règles de la dialectique (selon la terminologie en usage dans les écoles) : le succès de cette opération dépend de la capacité, de la part du lecteur, de retrouver la signification authentique de la terminologie scientifique mise en œuvre en poésie, utilisée pour illustrer les vérités de la foi et la nouvelle beauté de la synthèse entre art poétique et disciplines du Trivium. (shrink)

C’est à travers la lecture de l’Isagoge de Porphyre commentée par Boèce que l’idée d’une organisation hiérarchique du réel, fondée sur la division des genres, des espèces et des différences, était introduite dans le patrimoine culturel des intellectuels du haut Moyen Âge au niveau élémentaire de l’étude de la dialectique. Cette étude, fondement du curriculum pédagogique des arts libéraux, impliquait une considération réaliste des formes de la pensée logiquement ordonnées : seules structures authentiques du point de vue ontologique, les formes (...) sont aussi les seuls objets de la connaissance scientifique puisqu’elles seules sont véritablement exemptes de la vicissitude et de l’accidentalité. Tout au long du haut Moyen Âge, le débat, polymorphe et complexe, sur la nature des universaux introduit donc la comparaison dynamique entre différentes conceptions du réel, de la connaissance et de la science, et aussi de la capacité du langage humain de dire, de manifester et de communiquer la vérité. L’analyse historique de l’évolution et des conséquences de cette perspective philosophique, d’origine porphyrienne d’une part, boécienne et augustinienne de l’autre, se développe ici à travers certains épisodes de la spéculation du haut Moyen Âge, et en particulier à l’époque carolingienne, cherchant à contribuer à une meilleure intelligence de la naissance de la méthodologie des sciences particulières et, plus spécifiquement, de la théologie. (shrink)

In his explanation of the nature of the being of reason, Fr. José de Aguilar, S.J. presents a notion of «objective concept» which is common to both known real beings and beings of reaso...

MATERIALISTS claim that in principle mentality could be accounted for entirely by properties of matter. They must, of course, clarify, as far as possible, the precise scope of the concept "properties of matter." According to materialists there exists only one type of "substance" in the universe, namely matter. Sophisticated experimental and theoretical analyses have led contemporary physicists to interpret known material entities as being composed of two classes of elementary particles, namely quarks and leptons and constituents of interaction fields that (...) mediate interactions between some or all of the elementary particles and which comprise photons, gluons, intermediate bosons and gravitons. For instance, protons and neutrons are composed--by hypothesis--of quarks, while electrons are probably the most familiar leptons. Whether any analyzed and postulated elementary particles and constituents of interaction fields are "ultimate" components of matter can never be known. It remains always possible that more basic subcomponents of known components will be discovered. This has happened repeatedly throughout the history of physics. Hence, what physicists understand by the "physical properties" of the basic components of matter must always remain expressed in terms of usually intricate hypothetico-deductive theories which are tentative and fallible. Contemporary relativistic quantum mechanics of elementary particles and of interaction fields provide typical examples of such hypothetico-deductive theories relating to present known basic components of matter. (shrink)

This paper discusses some problems related to the practical experience of social research in university institutions. It describes the process of access to field work and the relationship with university managers as key informants during a qualitative research about the present politics of economic..

Los desacuerdos acerca de la ontología científica han sido frecuentemente reconstruidos como el resultado de una disputa entre stances epistémicas rivales. En el presente trabajo, (i) caracterizamos algunos de estos desacuerdos como desacuerdos profundos. Además, (ii) mostramos que los desacuerdos profundos sobre ontología científica pueden surgir no solo de la adopción de diferentes stances epistémicas, sino entre posiciones que se encuadran dentro de una misma stance. El desarrollo de ese punto nos permite, a su vez, establecer una distinción entre tipos (...) de desacuerdos profundos y explorar la posibilidad de que existan diferencias de grado entre ellos. (shrink)

Disagreements about scientific ontology have frequently been reconstructed as the result of a dispute between rival epistemic stances. In this paper, (i) we characterize some of these disagreements as deep disagreements. In addition, we show that deep disagreements about scientific ontology can arise not only from the adoption of different epistemic stances, but also between positions that fall within the same stance. The development of this point allows us, in turn, to establish a distinction between types of deep disagreement and (...) to explore the possibility that there are differences of degree between them. (shrink)

Relatively congruence regular quasivarieties and quasivarieties of logic have noticeable similarities. The paper provides a unifying framework for them which extends the Blok-Pigozzi theory of elementarily algebraizable (and protoalgebraic) deductive systems. In this extension there are two parameters: a set of terms and a variable. When the former is empty or consists of theorems, the Blok-Pigozzi theory is recovered, and the variable is redundant. On the other hand, a class of membership logics is obtained when the variable is the only (...) element of the set of terms. For these systems the appropriate variant of equivalent algebraic semantics encompasses the relatively congruence regular quasivarieties. (shrink)

SummaryExtremism in the environment‐versus innateness controversy in the behavioural sciences and in human sociobiology is being examined. Genetic effects can be severely modified or overruled by environmental factors, but may, nevertheless, be important. Dawkins' view that we are survival machines programmed to subserve selfish genes seems untenable and is a root of racialism. It is also argued that morality is compatible with mixed genetic and environmental control of brains via existing biological machinery.

The Four-Colour Theorem (4CT) proof, presented to the mathematical community in a pair of papers by Appel and Haken in the late 1970's, provoked a series of philosophical debates. Many conceptual points of these disputes still require some elucidation. After a brief presentation of the main ideas of Appel and Haken’s procedure for the proof and a reconstruction of Thomas Tymoczko’s argument for the novelty of 4CT’s proof, we shall formulate some questions regarding the connections between the points raised by (...) Tymoczko and some Wittgensteinian topics in the philosophy of mathematics such as the importance of the surveyability as a criterion for distinguishing mathematical proofs from empirical experiments. Our aim is to show that the “characteristic Wittgensteinian invention” (Mühlhölzer 2006) – the strong distinction between proofs and experiments – can shed some light in the conceptual confusions surrounding the Four-Colour Theorem. (shrink)