Results for ' atomic exhibitions'

1000+ found
Order:
  1.  16
    Science diplomacy on display: mobile atomic exhibitions in the cold war: Introduction to Special Issue.Donatella Germanese & Maria Rentetzi - 2023 - Annals of Science 80 (1):1-9.
    ABSTRACT Despite the increasing interest in science exhibitions, there has been hardly any work on mobile science exhibitions and their role within science diplomacy – a gap this thematic issue is meant to fill. Atomic mobile exhibitions are seen here not only as cultural sites but as multifaceted strategic processes of transnational nuclear history. We move beyond the bipolar Cold War history that portrays propagandist science exhibitions as instances of a one-way communication employed to promote (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  2.  12
    The ingredients of a successful atomic exhibition in Cold War Italy.Donatella Germanese - 2023 - Annals of Science 80 (1):10-37.
    The organization of the mobile atomic exhibition, Mostra Atomica, designed by the United States Information Service to travel through Italy in 1954–55, had to meet technical, scientific, artistic, and political challenges. The head of the group in charge of the exhibition was architect Peter G. Harnden whose pedigree in the intelligence and training in architecture were an ideal match for leading the unit dedicated to exhibitions. The political sensitivity of the Mostra Atomica also required the intervention of the (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  3.  19
    “Banishing the atom pile bogy”: Exhibiting Britain's first nuclear reactor.Alison Boyle - 2019 - Centaurus 61 (1-2):14-32.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  4. The atoms of self‐control.Chandra Sripada - 2021 - Noûs 55 (4):800-824.
    Philosophers routinely invoke self‐control in their theorizing, but major questions remain about what exactly self‐control is. I propose a componential account in which an exercise of self‐control is built out of something more fundamental: basic intrapsychic actions called cognitive control actions. Cognitive control regulates simple, brief states called response pulses that operate across diverse psychological systems (think of one's attention being grabbed by a salient object or one's mind being pulled to think about a certain topic). Self‐control ostensibly seems quite (...)
    No categories
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   26 citations  
  5.  13
    Celebrating the Czechoslovak atom: from ‘Atoms for Peace’ to Expo 58.Michaela Šmidrkalová - 2023 - Annals of Science 80 (1):38-61.
    The Czechoslovak-Soviet exhibition ‘Atoms for Peace’ was held in Prague and Bratislava in 1956. This exhibition became a symbol of Czechoslovak-Soviet ‘friendship’ and Soviet influence on the Czechoslovak nuclear programme. At the Brussels World’s Fair in 1958 (Expo 58), one of the most popular Czechoslovak exhibits was the betatron, which would become a symbol of Czechoslovak nuclear pride. The article analyzes the planning, creation and reception of these two exhibitions, as well as the popular image of the Czechoslovak betatron (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  6.  47
    Quantum Incompressibility of a Falling Rydberg Atom, and a Gravitationally-Induced Charge Separation Effect in Superconducting Systems.R. Y. Chiao, S. J. Minter, K. Wegter-McNelly & L. A. Martinez - 2012 - Foundations of Physics 42 (1):173-191.
    Freely falling point-like objects converge toward the center of the Earth. Hence the gravitational field of the Earth is inhomogeneous, and possesses a tidal component. The free fall of an extended quantum mechanical object such as a hydrogen atom prepared in a high principal-quantum-number state, i.e. a circular Rydberg atom, is predicted to fall more slowly than a classical point-like object, when both objects are dropped from the same height above the Earth’s surface. This indicates that, apart from transitions between (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  7.  28
    Towards a Philosophy of Chemical Reactivity Through the Molecule in Atoms-of Concept.Saturnino Calvo-Losada & José Joaquín Quirante - 2022 - Axiomathes 32 (1):1-41.
    A novel non-classical mereological concept built up by blending the Metaphysics of Xavier Zubiri and the Quantum Theory of Atoms in Molecules of R. F. W. Bader is proposed. It is argued that this philosophical concept is necessary to properly account for what happens in a chemical reaction. From the topology of the gradient of the laplacian of the electronic charge density, \\) within the QTAIM framework, different “atomic graphs” are found for each atom depending on the molecular context, (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  8. "Atoms Exist" Is Probably True, and Other Facts That Should Not Comfort Scientific Realists.P. Kyle Stanford - 2015 - Journal of Philosophy 112 (8):397-416.
    Critics who use historical evidence to challenge scientific realism have deployed a perfectly natural argumentative strategy that has created a profoundly misguided conception of what would be required to vindicate that challenge. I argue that the question fundamentally in dispute in such debates is neither whether particular terms in contemporary scientific theories will be treated as referential nor whether particular existential commitments will be held true by future scientific communities, but whether the future of science will exhibit the same broad (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark   5 citations  
  9.  5
    Wildly Oscillating Molecules: Technological mediation of the atomic force microscope.Andrea Rassell - 2019 - Technoetic Arts 17 (3):199-213.
    The human sensory experience of submolecular phenomena is only possible through complex technological mediations that include not just magnifications, but also manipulations of time and translations from one sense to another. In my creative moving image project Wildly Oscillating Molecules, I develop strategies for using an atomic force microscope (AFM) as a cinematographic instrument, specifically using its tactile mechanisms to generate video. Using the AFM over four years to generate experimental moving image installations, I examine my physical and psychological (...)
    No categories
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  10. A New method for Analysis of Biomolecules Using the BSM-SG Atomic Models.Stoyan Sarg Sargoytchev - 2017 - J. Biom Biostat 8 (2):1000339.
    Biomolecules and particularly proteins and DNA exhibit some mysterious features that cannot find satisfactory explanation by quantum mechanical modes of atoms. One of them, known as a Levinthal’s paradox, is the ability to preserve their complex three-dimensional structure in appropriate environments. Another one is that they possess some unknown energy mechanism. The Basic Structures of Matter Supergravitation Unified Theory (BSM-SG) allows uncovering the real physical structures of the elementary particles and their spatial arrangement in atomic nuclei. The resulting physical (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  11.  13
    The photographers’ gaze: the Mobile Radioisotope Exhibition in Latin America (1960–1965).Gisela Mateos & Edna Suárez-Díaz - 2023 - Annals of Science 80 (1):62-76.
    During the IAEA’s Mobile Radioisotope Exhibition (1960–1965) through the eventful roads of five Latin American countries (Mexico, Uruguay, Argentina, Brazil, and Bolivia), a variety of photographs were taken by an unknown Mexican official photographer, and by Josef Obermayer, a staff driver from Vienna. The exhibition carried not only bits of nuclear sciences and technologies, but also the political symbolism of the ‘friendly atom’ as a token of modernization. The photographs embarked on different trajectories, though all of them ended up at (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  12.  34
    Explosive Propositions: Artists React to the Atomic Age.Stephen Petersen - 2004 - Science in Context 17 (4):579-609.
    Argument“How should a modern artist react to the atomic age?” Time magazine posed this question in 1952 to open a review of an exhibition of paintings inspired by the “explosion of the atomic bomb” and by the “discovery of nuclear energy.” The energetic paintings of the Italian Spatial Movement were, according to Time, “almost as explosive as the bomb itself.” “Explosiveness” was a defining feature of much 1950s art, whose main impulse, gestural abstraction, has previously been understood as (...)
    No categories
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  13.  9
    Neo-classical Relativistic Mechanics Theory for Electrons that Exhibits Spin, Zitterbewegung, Dipole Moments, Wavefunctions and Dirac’s Wave Equation.James L. Beck - 2023 - Foundations of Physics 53 (3):1-39.
    In this work, a neo-classical relativistic mechanics theory is presented where the spin of an electron is an inherent part of its world space-time path as a point particle. The fourth-order equation of motion corresponds to the same covariant Lagrangian function in proper time as in special relativity except for an additional spin energy term. The theory provides a hidden-variable model of the electron where the dynamic variables give a complete description of its motion, giving a classical mechanics explanation of (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  14. Is Water H2O? Evidence, Realism and Pluralism.Hasok Chang - 2012 - Boston Studies in the Philosophy and History of Science.
    This book exhibits deep philosophical quandaries and intricacies of the historical development of science lying behind a simple and fundamental item of common sense in modern science, namely the composition of water as H2O. Three main phases of development are critically re-examined, covering the historical period from the 1760s to the 1860s: the Chemical Revolution, early electrochemistry, and early atomic chemistry. In each case, the author concludes that the empirical evidence available at the time was not decisive in settling (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   211 citations  
  15. Composition as a fiction.Gideon Rosen & Cian Dorr - 2002 - In Richard Gale (ed.), The Blackwell Companion to Metaphysics. Blackwell. pp. 151--174.
    Region R Question: How many objects — entities, things — are contained in R? Ignore the empty space. Our question might better be put, 'How many material objects does R contain?' Let's stipulate that A, B and C are metaphysical atoms: absolutely simple entities with no parts whatsoever besides themselves. So you don't have to worry about counting a particle's top half and bottom half as different objects. Perhaps they are 'point-particles', with no length, width or breadth. Perhaps they are (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   166 citations  
  16.  95
    The Tyranny of Scales.Robert W. Batterman - 2013 - In The Oxford handbook of philosophy of physics. Oxford University Press. pp. 255-286.
    This paper examines a fundamental problem in applied mathematics. How can one model the behavior of materials that display radically different, dominant behaviors at different length scales. Although we have good models for material behaviors at small and large scales, it is often hard to relate these scale-based models to one another. Macroscale models represent the integrated effects of very subtle factors that are practically invisible at the smallest, atomic, scales. For this reason it has been notoriously difficult to (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   35 citations  
  17. Perception and Primary Qualities.Nancy L. Maull - 1978 - PSA Proceedings of the Biennial Meeting of the Philosophy of Science Association 1978 (1):2-17.
    Early modern science, according to a misleading and now widely accepted thesis, introduced a split or schism between a world of colorless, imperceptible particles, on the one hand, and the familiar world of perception, on the other. One of the most important dilemmas of modern philosophy, of course, seems to follow directly from this alleged rupture: For how are the two seemingly incongruous worlds to be “reconciled”? This way of formulating the problem, however, seems to be based on a misunderstanding (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  18. Prototypes, Poles, and Topological Tessellations of Conceptual Spaces.Thomas Mormann - 2021 - Synthese 199 (1):3675 - 3710.
    Abstract. The aim of this paper is to present a topological method for constructing discretizations (tessellations) of conceptual spaces. The method works for a class of topological spaces that the Russian mathematician Pavel Alexandroff defined more than 80 years ago. Alexandroff spaces, as they are called today, have many interesting properties that distinguish them from other topological spaces. In particular, they exhibit a 1-1 correspondence between their specialization orders and their topological structures. Recently, a special type of Alexandroff spaces was (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   4 citations  
  19. Nietzsche as panpsychist.Justin Remhof - 2024 - British Journal for the History of Philosophy 1 (forthcoming):forthcoming.
    This paper argues that Nietzsche is a panpsychist. Panpsychism holds that mental features are ubiquitous and fundamental in reality. I first argue that Nietzsche’s rejection of Cartesian dualism leads him to substance monism. To better understand his monism, I examine Nietzsche’s rejection of Newtonian atomism. Nietzsche holds that bundles of forces, or will to power, are more fundamental than hard, extended atoms. So, will to power is fundamental. I then investigate Nietzsche’s remarks on organic and inorganic nature to show that (...)
     
    Export citation  
     
    Bookmark  
  20.  6
    The Responsible Scientist: A Philosophical Inquiry.John Forge - 2008 - University of Pittsburgh Press.
    When Fat Boy, the first atomic bomb was detonated at Los Alamos, New Mexico in 1945, moral responsibility in science was forever thrust into the forefront of philosophical debate. The culmination of the famed Manhattan Project, which employed many of the world's best scientific minds, was a singular event that signaled a new age of science for power and profit and the monumental responsibility that these actions entailed. Today, the drive for technological advances in areas such as pharmaceuticals, biosciences, (...)
    Direct download  
     
    Export citation  
     
    Bookmark   13 citations  
  21.  50
    Seeing Things: The Philosophy of Reliable Observation.Robert Hudson - 2013 - Oxford and New York: Oxford University Press.
    In Seeing Things, Robert Hudson assesses a common way of arguing about observation reports called "robustness reasoning." Robustness reasoning claims that an observation report is more likely to be true if the report is produced by multiple, independent sources. Seeing Things argues that robustness reasoning lacks the special value it is often claimed to have. Hudson exposes key flaws in various popular philosophical defenses of robustness reasoning. This philosophical critique of robustness is extended by recounting five episodes in the history (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   13 citations  
  22. Biological Atomism and Cell Theory.Daniel J. Nicholson - 2010 - Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences 41 (3):202-211.
    Biological atomism postulates that all life is composed of elementary and indivisible vital units. The activity of a living organism is thus conceived as the result of the activities and interactions of its elementary constituents, each of which individually already exhibits all the attributes proper to life. This paper surveys some of the key episodes in the history of biological atomism, and situates cell theory within this tradition. The atomistic foundations of cell theory are subsequently dissected and discussed, together with (...)
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark   14 citations  
  23. Emergent biological principles and the computational properties of the universe.Paul Davies - manuscript
    T he term emergence is used to describe the appearance of new properties that arise when a system exceeds a certain level of size or complexity, properties that are absent from the constituents of the system. It is a concept often summed up by the phrase that “the whole is greater than the sum of its parts,” and it is a key notion in the burgeoning field of complexity science. Life is often cited as a classic example of an emergent (...)
     
    Export citation  
     
    Bookmark   9 citations  
  24. Mad Speculation and Absolute Inhumanism: Lovecraft, Ligotti, and the Weirding of Philosophy.Ben Woodard - 2011 - Continent 1 (1):3-13.
    continent. 1.1 : 3-13. / 0/ – Introduction I want to propose, as a trajectory into the philosophically weird, an absurd theoretical claim and pursue it, or perhaps more accurately, construct it as I point to it, collecting the ground work behind me like the Perpetual Train from China Mieville's Iron Council which puts down track as it moves reclaiming it along the way. The strange trajectory is the following: Kant's critical philosophy and much of continental philosophy which has followed, (...)
    Direct download  
     
    Export citation  
     
    Bookmark   4 citations  
  25.  29
    Test objects and other epistemic things: a history of a nanoscale object.Cyrus C. M. Mody & Michael Lynch - 2010 - British Journal for the History of Science 43 (3):423-458.
    This paper follows the history of an object. The purpose of doing so is to come to terms with a distinctive kind of research object – which we are calling a ‘test object’ – as well as to chronicle a significant line of research and technology development associated with the broader nanoscience/nanotechnology movement. A test object is one of a family of epistemic things that makes up the material culture of laboratory science. Depending upon the case, it can have variable (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   4 citations  
  26.  41
    Steel and bone: mesoscale modeling and middle-out strategies in physics and biology.Robert W. Batterman & Sara Green - 2020 - Synthese 199 (1-2):1159-1184.
    Mesoscale modeling is often considered merely as a practical strategy used when information on lower-scale details is lacking, or when there is a need to make models cognitively or computationally tractable. Without dismissing the importance of practical constraints for modeling choices, we argue that mesoscale models should not just be considered as abbreviations or placeholders for more “complete” models. Because many systems exhibit different behaviors at various spatial and temporal scales, bottom-up approaches are almost always doomed to fail. Mesoscale models (...)
    No categories
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   7 citations  
  27.  1
    Like Mending a Torn Fabric.Francesco Omar Zamboni - 2024 - Journal of Islamic Philosophy 15 (1):30-65.
    This paper investigates the doctrine of man’s essence and resurrection defended by the late Muʿtazilī Rukn al-Dīn b. al-Malāḥimī al-Khwārazmī (d. 536/1141). His anthropology combines substance reductionism and function organicism. Even though man is not a unitary substance additional to the sum of his atomic parts, the specific arrangement of parts we call “man” exhibits functions that are indivisible and irreducible (they are not sums of functions predicable of the indi­vidual parts). When it comes to resurrection, Ibn al-Malāḥimī abandons (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  28. The Electron: A Biographical Sketch of a Theoretical Entity.Theodore Arabatzis - 1995 - Dissertation, Princeton University
    This dissertation reconstructs some aspects of the historical development of the concept of the electron from 1891, when the term "electron" was introduced, to 1925, when the notion of spin was put forward, in the light of the relevant historiographical and philosophical problems. The central historiographical tool employed is Karl Popper's notion of a problem situation. Furthermore, some of the historical episodes are reconstructed in terms of a "biographical" approach to theoretical entities that portrays them as active agents that participate (...)
     
    Export citation  
     
    Bookmark   3 citations  
  29.  21
    Hybrid languages and temporal logic.P. Blackburn & M. Tzakova - 1999 - Logic Journal of the IGPL 7 (1):27-54.
    Hybridization is a method invented by Arthur Prior for extending the expressive power of modal languages. Although developed in interesting ways by Robert Bull, and by the Sofia school , the method remains little known. In our view this has deprived temporal logic of a valuable tool.The aim of the paper is to explain why hybridization is useful in temporal logic. We make two major points, the first technical, the second conceptual. First, we show that hybridization gives rise to well-behaved (...)
    Direct download  
     
    Export citation  
     
    Bookmark   22 citations  
  30.  54
    The Electrodynamic 2-Body Problem and the Origin of Quantum Mechanics.C. K. Raju - 2004 - Foundations of Physics 34 (6):937-962.
    We numerically solve the functional differential equations (FDEs) of 2-particle electrodynamics, using the full electrodynamic force obtained from the retarded Lienard–Wiechert potentials and the Lorentz force law. In contrast, the usual formulation uses only the Coulomb force (scalar potential), reducing the electrodynamic 2-body problem to a system of ordinary differential equations (ODEs). The ODE formulation is mathematically suspect since FDEs and ODEs are known to be incompatible; however, the Coulomb approximation to the full electrodynamic force has been believed to be (...)
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark   5 citations  
  31.  39
    Periodicity in the formulae of carbonyls and the electronic basis of the Periodic Table.Peter G. Nelson - 2012 - Foundations of Chemistry 15 (2):199-208.
    The basis of the Periodic Table is discussed. Electronic configuration recurs in only 21 out of the 32 groups. A better basis is derived by considering the highest classical valency (v) exhibited by an element and a new measure, the highest valency in carbonyl compounds (v*). This leads to a table based on the number of outer electrons possessed by an atom (N) and the number of electrons required for it to achieve an inert (noble) gas configuration (N*). Periodicity of (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark   4 citations  
  32.  24
    The Logics of Counterinference and the “Additional Condition” (upādhi) in Gaṅgeśa’s Defense of the Nyāya Theistic Inference from Effects.Stephen Phillips - 2022 - Journal of Indian Philosophy 50 (5):821-833.
    This paper is taken from a long section of the _Tattva-cintā-maṇi_ by Gaṅgeśa that is devoted to proving the existence of—to use an inadequate word—“God” in a somewhat minimalist sense. The _īśvara_, the “Lord,” is for Gaṅgeśa, following Nyāya predecessors, a divine agent, a self, responsible for much, not all, of the order in the world. Unseen Force, _adṛṣṭa_, which is in effect _karman_ made by human action, is also a powerful agent as well as things’ intrinsic natures. Moreover, ordinary (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  33.  42
    Davidson on properties.Anna-Sofia Maurin - 1998 - Dialectica 52 (1):13–22.
    Donald Davidson claims that, by studying the most general aspects of natural language, we will also be studying the most general aspects of reality.In particular, this means that, through the application of a systematic truththeory to natural language, we will be able to reveal its basic structure, its true logical form. Once this logical form has been spelled out, we will be able to determine the finite stock of important constituents of which sentences are built, and also the specific roles (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  34. Tolerance Threshold and Phyto-assessment of Cadmium and Lead in Vetiver Grass, Vetiveria zizanioides (Linn.) Nash.Chuck Chuan Ng - 2017 - Chiang Mai Journal of Science 44 (4):1367-1378.
    Various types of plant species have been extensively used for heavy metals phyto-remediation without taking into consideration its tolerance threshold. In this study, Vetiver grass, Vetiveria zizanioides (Linn.) Nash was evaluated under five different sets of contaminated spiked cadmium (5Cd, 10Cd, 50Cd, 100Cd and 150Cd mg/kg) and lead (50Pb, 100Pb, 200Pb, 400Pb and 800Pb mg/kg) concentration levels in soil. The growth performance, metal tolerance and phyto-assessment of Cd and Pb in the roots and tillers were assessed using flame atomic (...)
    Direct download  
     
    Export citation  
     
    Bookmark   1 citation  
  35. Beyond Kuhn: Methodological Contextualism and Partial Paradigms.Darrell P. Rowbottom - 2018 - In Moti Mizrahi (ed.), The Kuhnian Image of Science: Time for a Decisive Transformation? London: Rowman & Littlefield. pp. 191-208.
    Kuhn’s view of science is as follows. Science involves two key phases: normal and extraordinary. In normal science, disciplinary matrices (DMs) are large and pervasive. DMs involve “beliefs, values, techniques, and so on shared by the members of a given community” (Kuhn 1996, 175). “And so on” is regrettably vague, but Kuhn (1977, 1996) mentions three other key elements: symbolic generalizations (such as F=dp/dt), models (such as Bohr’s atomic model), and exemplars. These components of DMs overlap somewhat. For instance, (...)
    Direct download  
     
    Export citation  
     
    Bookmark  
  36.  42
    The metaphysical transition in farming: From the Newtonian-mechanical to the Eltonian ecological.J. Baird Callicott - 1990 - Journal of Agricultural and Environmental Ethics 3 (1):36-49.
    Modern agriculture is subject to a metaphysical as well as an ethical critique. As a casual review of the beliefs associated with food production in the past suggests, modern agriculture is embedded in and informed by the prevailing modern world view, Newtonian Mechanics, which is bankrupt as a scientific paradigm and unsustainable as an agricultural motif. A new holistic, organic world view is emerging from ecology and the new physics marked by four general conceptual features: Each level of organization from (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   2 citations  
  37. Quantum vacuum friction.Paul Davies - manuscript
    The quantum vacuum may in certain circumstances be regarded as a type of fluid medium, or aether, exhibiting energy density, pressure, stress and friction. Vacuum friction may be thought of as being responsible for the spontaneous creation of particles from the vacuum state when the system is non-stationary. Examples include the expanding universe, rotating black holes, moving mirrors, atoms passing close to surfaces, and the activities of sub-cellular biosystems. The concept of vacuum friction will be reviewed and illustrated, and some (...)
     
    Export citation  
     
    Bookmark  
  38.  19
    Algebraic description of the quantum defect.R. Gilmore, H. G. Solari & S. K. Kim - 1993 - Foundations of Physics 23 (6):873-879.
    A simple model for the description of atomic and ionic species with spectra exhibiting a quantum defect is solved using the Lie algebra su(1, 1). The quantum defect of bound states is related to the phase shift of scattering states. The resonances are discussed in terms of the nonunitary representations of this algebra.
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  39.  8
    Factors in Protobiomonomer Selection for the Origin of the Standard Genetic Code.Alexander I. Saralov - 2021 - Acta Biotheoretica 69 (4):745-767.
    Natural selection of specific protobiomonomers during abiogenic development of the prototype genetic code is hindered by the diversity of structural, spatial, and rotational isomers that have identical elemental composition and molecular mass (M), but can vary significantly in their physicochemical characteristics, such as the melting temperature Tm, the Tm:M ratio, and the solubility in water, due to different positions of atoms in the molecule. These parameters differ between cis- and trans-isomers of dicarboxylic acids, spatial monosaccharide isomers, and structural isomers of (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  40. The emancipation of chemistry.Gerald F. Thomas - 2011 - Foundations of Chemistry 14 (2):109-155.
    In his classic work The Mind and its Place in Nature published in 1925 at the height of the development of quantum mechanics but several years after the chemists Lewis and Langmuir had already laid the foundations of the modern theory of valence with the introduction of the covalent bond, the analytic philosopher C. D. Broad argued for the emancipation of chemistry from the crass physicalism that led physicists then and later—with support from a rabblement of philosophers who knew as (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  41.  23
    On Stevenson's if-iculties.R. M. Martin - 1972 - Philosophy of Science 39 (4):515-521.
    Professor Stevenson's valuable paper [5] calls attention to a number of discrepancies between ‘if’ in English and its usual translation into the horseshoe of material implication. “This is not a reason for distrusting the horseshoe,” he notes, “which is useful so long as it is taken to mean just what it is defined to mean; and it is not a reason for distrusting our English if's, which in spite of their ambiguities are indispensable to our daily discourse”. Accordingly, Stevenson proposes (...)
    Direct download (8 more)  
     
    Export citation  
     
    Bookmark  
  42.  18
    Continuous vs discrete processes: The probabilistic evolution of single trapped ions.Storrs McCall, Andrew Whitaker & Glyn George - 2000
    The evolution of a single trapped ion exhibiting intermittent fluorescence and dark periods may be described either as a continuous process, using differential rate equations, or discretely, as a Markov process. The latter models the atom as making instantaneous transitions from one energy eigenstate to another, and is open to the objection that superpositions of energy states will form which are not covered by the Markov process. The superposition objection is replied to, and two new mathematical elements, Markov vectors and (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  43.  80
    Bare singulars and singularity in Turkish.Yağmur Sağ - 2022 - Linguistics and Philosophy 45 (4):741-793.
    This paper explores the semantics of bare singulars in Turkish, which are unmarked for number in form, as in English, but can behave like both singular and plural terms, unlike in English. While they behave like singular terms as case-marked arguments, they are interpreted number neutrally in non-case-marked argument positions, the existential copular construction, and the predicate position. Previous accounts 20:1–15, 2010; Görgülü, in: Semantics of nouns and the specification of number in Turkish, Ph.d. thesis, Simon Fraser University, 2012) propose (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  44.  14
    Teleology in Natural Theology and Theology of Nature: Classical Theism, Science-Oriented Panentheism, and Process Theism.Mariusz Tabaczek - 2022 - Nova et Vetera 20 (4):1179-1206.
    In lieu of an abstract, here is a brief excerpt of the content:Teleology in Natural Theology and Theology of Nature:Classical Theism, Science-Oriented Panentheism, and Process TheismMariusz Tabaczek, O.P.IntroductionThe world is full of teleological dimensions. When we search for them, we can easily see that virtually any of the main aspects of our world can be taken as a particular case of teleology. Although this holds especially for living beings, the physicochemical world also exhibits many directional features that acquire a special (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  45. Phyto-evaluation of Cd-Pb Using Tropical Plants in Soil-Leachate Conditions.Chuck Chuan Ng - 2018 - Air, Soil and Water Research 11 (1):1-9.
    Sources of soil contamination can exist in various types of conditions including in the form of semifluids. In this study, 3 different types of tropical plants, Acacia (Acacia mangium Willd), Mucuna (Mucuna bracteata DC. ex Kurz) and Vetiver (Vetiveria zizanioides L. Nash), were tested under different levels of soil-leachate conditions. The relative growth rate, metal tolerance, and phytoassessment of cadmium (Cd) and lead (Pb) accumulation in the roots and shoots were determined using flame atomic absorption spectrometry. Tolerance index, translocation (...)
    Direct download  
     
    Export citation  
     
    Bookmark  
  46.  34
    Physical and conceptual constructions in advanced learning environments.Henrik Hautop Lund & Patrizia Marti - 2004 - Interaction Studies. Social Behaviour and Communication in Biological and Artificial Systemsinteraction Studies / Social Behaviour and Communication in Biological and Artificial Systemsinteraction Studies 5 (2):271-301.
    I-BLOCKS are an innovative concept of building blocks allowing users to manipulate conceptual structures and compose atomic actions while building physical constructions. They represent an example of enabling technologies for tangible interfaces since they emphasise physicality of interaction through the use of spatial and kinaesthetic knowledge. The technology presented in this paper is integrated in physical building blocks augmented with embedded and invisible microprocessors. Connectivity and behaviour of such structures are defined by the physical connectivity between the blocks. These (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  47. 'The handmaiden of industry': Marine science and fisheries development in south Africa 1895-1939.C. Revelle, S. Snyder, P. Nagels, E. Sleeckx, R. Callaerts, L. Tichy & L. Sittert - 1995 - Studies in History and Philosophy of Science Part A 26 (4):531-558.
    The preparation of layers of amorphous Se by plasma-enhanced CVD using the hydride H2Se as precursor gas is described. Information concerning the structure of the films was obtained from Raman spectroscopy. The spectra of amorphous Se indicated that the dominant molecular structure is the eight-membered ring and/or a chain with Se8 molecular fragments. This material exhibited reversible photodarkening when illuminated at 77 K. In order to explain this phenomenon, we propose a mechanism which takes into account the role of the (...)
     
    Export citation  
     
    Bookmark  
  48.  24
    Cancel Culture and the Trope of the Scapegoat: A Girardian Defense of the Importance of Contemplative Reading.Joakim Wrethed - 2022 - Contagion: Journal of Violence, Mimesis, and Culture 29 (1):15-37.
    In lieu of an abstract, here is a brief excerpt of the content:Cancel Culture and the Trope of the ScapegoatA Girardian Defense of the Importance of Contemplative ReadingJoakim Wrethed (bio)What unfolds in this article encompasses violence, language/reading, and ethics. René Girard addresses these topics primarily in terms of mimesis, its potential violence, and the trope of the scapegoat. Still, toward the end of his career and life, he relentlessly pointed out the dangers implicated in the dynamism of these forces. He (...)
    No categories
    Direct download  
     
    Export citation  
     
    Bookmark  
  49.  36
    Nucleation of kink pairs on partial dislocations: A new model for solution hardening and softening.T. E. Mitchell, P. M. Anderson, M. I. Baskes, S. P. Chen, R. G. Hoagland & A. Misra - 2003 - Philosophical Magazine 83 (11):1329-1346.
    Nucleation and motion of kink pairs on partial dislocations are examined by elasticity theory for materials with a high Peierls stress. Two approaches are used: one considers the change in average stacking-fault energy due to alloying elements and the other considers the change in local SFE due to a nearby solute atom. Both approaches highlight the role of SFE on kink nucleation, propagation and annihilation and both furnish strain rate as a function of stress, temperature and SFE. Model predictions are (...)
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
  50. What is the Value of Geometric Models to Understand Matter?Francoise Monnoyeur (ed.) - 2015 - palermo italy: review of Ontology.
    This article analyzes the value of geometric models to understand matter with the examples of the Platonic model for the primary four elements (fire, air, water, and earth) and the models of carbon atomic structures in the new science of crystallography. How the geometry of these models is built in order to discover the properties of matter is explained: movement and stability for the primary elements, and hardness, softness and elasticity for the carbon atoms. These geometric models appear to (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
1 — 50 / 1000