236 research outputs found
The ultimate tactics of self-referential systems
Mathematics is usually regarded as a kind of language. The essential behavior
of physical phenomena can be expressed by mathematical laws, providing
descriptions and predictions. In the present essay I argue that, although
mathematics can be seen, in a first approach, as a language, it goes beyond
this concept. I conjecture that mathematics presents two extreme features,
denoted here by {\sl irreducibility} and {\sl insaturation}, representing
delimiters for self-referentiality. These features are then related to physical
laws by realizing that nature is a self-referential system obeying bounds
similar to those respected by mathematics. Self-referential systems can only be
autonomous entities by a kind of metabolism that provides and sustains such an
autonomy. A rational mind, able of consciousness, is a manifestation of the
self-referentiality of the Universe. Hence mathematics is here proposed to go
beyond language by actually representing the most fundamental existence
condition for self-referentiality. This idea is synthesized in the form of a
principle, namely, that {\sl mathematics is the ultimate tactics of
self-referential systems to mimic themselves}. That is, well beyond an
effective language to express the physical world, mathematics uncovers a deep
manifestation of the autonomous nature of the Universe, wherein the human brain
is but an instance.Comment: 9 pages. This essay received the 4th. Prize in the 2015 FQXi essay
contest: "Trick or Truth: the Mysterious Connection Between Physics and
Mathematics
Conspiracy theories as part of history: The role of societal crisis situations
In the present contribution we examine the link between societal crisis situations and belief in conspiracy theories. Contrary to common assumptions, belief in conspiracy theories has been prevalent throughout human history. We first illustrate historical incidents suggesting that societal crisis situationsâdefined as impactful and rapid societal change that calls established power structures, norms of conduct, or even the existence of specific people or groups, into question âhave stimulated belief in conspiracy theories. We then review the psychological literature to explain why this is the case. Evidence suggests that the aversive feelings that people experience when in crisisâfear, uncertainty, the feeling of being out of controlâstimulate a motivation to make sense of the situation, increasing the likelihood of perceiving conspiracies in social situations. We then explain that after being formed, conspiracy theories can become historical narratives that may spread through cultural transmission. We conclude that conspiracy theories originate particularly in crisis situations, and may form the basis for how people subsequently remember and mentally represent a historical event
Nucleon Structure and Parity-Violating Electron Scattering
We review the area of strange quark contributions to nucleon structure. In
particular, we focus on current models of strange quark vector currents in the
nucleon and the associated parity-violating elastic electron scattering
experiments from which vector- and axial-vector currents are extractedComment: 40 pages including 7 figures; review article to be published in Int.
J. Mod. Phys.
Quantum Hall states for in optical lattices
We examine the quantum Hall (QH) states of the optical lattices with square
geometry using Bose-Hubbard model (BHM) in presence of artificial gauge field.
In particular, we focus on the QH states for the flux value of .
For this, we use cluster Gutzwiller mean-field (CGMF) theory with cluster sizes
of and . We obtain QH states at fillings with the cluster size and with cluster. Our results show that the geometry
of the QH states are sensitive to the cluster sizes. For all the values of
, the competing superfluid (SF) state is the ground state and QH state is
the metastable state.Comment: 6 pages, 4 figures. This is a pre-submission version of the
manuscript. The published version is available online in "Quantum Collisions
and Confinement of Atomic and Molecular Species, and Photons, Springer
Proceedings in Physics 230, pp 211--221 (2019)". The final authenticated
version is available online at : https://doi.org/10.1007/978-981-13-9969-5_2
Considering agency and data granularity in the design of visualization tools
The Ecuadorian Government supports Gonzalo Gabriel MĂ©ndez through a SENESCYT scholarship.Previous research has identified trade-offs when it comes to designing visualization tools. While constructive âbottom-upâ tools promote a hands-on, user-driven design process that enables a deep understanding and control of the visual mapping, automated tools are more efficient and allow people to rapidly explore complex alternative designs, often at the cost of transparency. We investigate how to design visualization tools that support a user-driven, transparent design process while enabling efficiency and automation, through a series of design workshops that looked at how both visualization experts and novices approach this problem. Participants produced a variety of solutions that range from example-based approaches expanding constructive visualization to solutions in which the visualization tool infers solutions on behalf of the designer, e.g., based on data attributes. On a higher level, these findings highlight agency and granularity as dimensions that can guide the design of visualization tools in this space.Postprin
Analogy-Making as a Core Primitive in the Software Engineering Toolbox
An analogy is an identification of structural similarities and
correspondences between two objects. Computational models of analogy making
have been studied extensively in the field of cognitive science to better
understand high-level human cognition. For instance, Melanie Mitchell and
Douglas Hofstadter sought to better understand high-level perception by
developing the Copycat algorithm for completing analogies between letter
sequences. In this paper, we argue that analogy making should be seen as a core
primitive in software engineering. We motivate this argument by showing how
complex software engineering problems such as program understanding and
source-code transformation learning can be reduced to an instance of the
analogy-making problem. We demonstrate this idea using Sifter, a new
analogy-making algorithm suitable for software engineering applications that
adapts and extends ideas from Copycat. In particular, Sifter reduces
analogy-making to searching for a sequence of update rule applications. Sifter
uses a novel representation for mathematical structures capable of effectively
representing the wide variety of information embedded in software. We conclude
by listing major areas of future work for Sifter and analogy-making in software
engineering.Comment: Conference paper at SPLASH 'Onward!' 2020. Code is available at
https://github.com/95616ARG/sifte
Making sense of theory construction: Metaphor and disciplined imagination
This article draws upon Karl Weickâs insights into the nature of theorizing, and extends and refines his conception of theory construction as âdisciplined imaginationâ. An essential ingredient in Weickâs âdisciplined imaginationâ involves his assertion that thought trials and theoretical representations typically involve a transfer from one epistemic sphere to another through the creative use of metaphor. The article follows up on this point and draws out how metaphor works, how processes of metaphorical imagination partake in theory construction, and how insightful metaphors and the theoretical representations that result from them can be selected. The paper also includes a discussion of metaphors-in-use (organizational improvisation as jazz and organizational behavior as collective mind) which Weick proposed in his own writings. The whole purpose of this exercise is to theoretically augment and ground the concept of âdisciplined imaginationâ, and in particular to refine the nature of thought trials and selection within it. In doing so, we also aim to provide pointers for the use of metaphorical imagination in the process of theory construction
Belief in Conspiracy Theories: Basic Principles of an Emerging Research Domain
In this introduction to the EJSP Special Issue on conspiracy theories as a social psychological phenomenon, we describe how this emerging research domain has developed over the past decade and distill four basic principles that characterize belief in conspiracy theories. Specifically, conspiracy theories are consequential as they have a real impact on people's health, relationships, and safety; they are universal in that belief in them is widespread across times, cultures, and social settings; they are emotional given that negative emotions and not rational deliberations cause conspiracy beliefs; and they are social as conspiracy beliefs are closely associated with psychological motivations underlying intergroup conflict. We then discuss future research and possible policy interventions in this growing area of enquiry
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