Rhetorical Structure Theory has enjoyed continuous attention since its origins in the 1980s. It has been applied, compared to other approaches, and also criticized in a number of areas in discourse analysis, theoretical linguistics, psycholinguistics, and computational linguistics. In this article, we review some of the discussions about the theory itself, especially addressing issues of the reliability of analyses and psychological validity, together with a discussion of the nature of text relations. We also propose areas for further research. (...) A follow-up article will discuss applications of the theory in various fields. (shrink)

In this paper, we explore the structure theory ofL under the hypothesisL ⊧ “AD +μis a normal fine measure on” and give some applications. First we show that “ ZFC + there existω2Woodin cardinals”1has the same consistency strength as “ AD +ω1is ℝ-supercompact”. During this process we show that ifL ⊧ AD then in factL ⊧ AD+. Next we prove important properties ofL including Σ1-reflection and the uniqueness ofμinL. Then we give the computation of full HOD inL. Finally, we (...) use Σ1-reflection and ℙmaxforcing to construct a certain ideal on that has the same consistency strength as “ZFC+ there existω2Woodin cardinals.”. (shrink)

Using the Friedman-Koepke Hyperfine Structure Theory of [2], we provide a short construction of a gap 1 morass in the constructible universe.

The purpose of a logical framework such as LF is to provide a language for defining logical systems suitable for use in a logic-independent proof development environment. All inferential activity in an object logic is to be conducted in the logical framework via the representation of that logic in the framework. An important tool for controlling search in an object logic, the need for which is motivated by the difficulty of reasoning about large and complex systems, is the use of (...) structured theory presentations. In this paper a rudimentary language of structured theory presentations is presented, and the use of this structure in proof search for an arbitrary object logic is explored. The behaviour of structured theory presentations under representation in a logical framework is studied, focusing on the problem of “lifting” presentations from the object logic to the metalogic of the framework. The topic of imposing structure on logic presentations, so that logical systems may themselves be defined in a modular fashion, is also briefly considered. (shrink)

In this article, the author argues that we need to conceptualize gender as a social structure, and by doing so, we can better analyze the ways in which gender is embedded in the individual, interactional, and institutional dimensions of our society. To conceptualize gender as a structure situates gender at the same level of general social significance as the economy and the polity. The author also argues that while concern with intersectionality must continue to be paramount, different structures of inequality (...) have different constructions and perhaps different influential causal mechanisms at any given historical moment. We need to follow a both/and strategy to understand gender structure, race structure, and other structures of inequality as they currently operate while also systematically paying attention to how these axes of domination intersect. Finally, the author suggests we pay more attention to doing research and writing theory with explicit attention to how our work can indeed help transform as well as inform society. (shrink)

Despite its enduring insights, Durkheim’s theory of suicide fails to account for a significant set of cases because of its overreliance on structural forces to the detriment of other possible factors. In this paper, we develop a new theoretical framework for thinking about the role of culture in vulnerability to suicide. We argue that by focusing on the cultural dynamics of excessive regulation, particularly at the meso level, a more robust sociological model for suicide could be offered that supplements (...) structure-heavy Durkheimian theory. In essence, we argue that the relevance of cultural regulation to suicide rests on the (1) degree to which culture is coherent in sociocultural places, (2) existence of directives related to prescribing or proscribing suicide, (3) degree to which these directives translate into internalized meanings affecting social psychological processes, and (4) degree to which the social space is bounded. We then illustrate how our new theory provides useful insights into three cases of suicide largely neglected within sociology: specifically, suicide clusters in high schools, suicide in the military, and suicides of “despair” among middle-aged white men. We conclude with implications for future sociological research on suicide and suicide prevention. (shrink)

Anthony Giddens’ theory of structuration is a theory of social action, which claims that society should be understood in terms of action and structure; a duality rather than two separate entities. This paper introduces some of the central characteristics of structuration theory, presenting a conceptual framework that helps to explore how people produce the systems and structures that shape their practice. By understanding how people produce and reproduce structures, then there is the potential for changing (...) them. Criticisms that have been raised about the theory are introduced, followed by examples of how the theory might be useful to nursing research. Structuration theory can be employed to explore how nurses produce, reproduce, and transform nursing practice through social interaction across time and space. (shrink)

We have been recently engaged in this search, and have announced a long series of successively simpler and more convincing examples. See [Fr09-10].

The survey contains a detailed discussion of methods and results in the new emerging area of online “punctual” structure theory. We also state several open problems.

Rhetorical Structure Theory is a theory of text organization that has led to areas of application beyond discourse analysis and text generation, its original goals. In this article, we review the most important applications in several areas: discourse analysis, theoretical linguistics, psycholinguistics, and computational linguistics. We also provide a list of resources useful for work within the RST framework. The present article is a complement to our review of the theoretical aspects of the theory.

Biogenetic structural theory takes an entrainment view of the nature of consciousness. Human consciousness is a function of the brain and is mediated by networks of living neural cells that develop from initial, neurognostic models of self and world. Models interact or "entrain" as a constantly changing field of experience. The entire population of neural models that may potentially entrain within the field of consciousness is called the "cognized environment.” The organization of the network of cells (the "conscious network") (...) mediating consciousness operates according to a circadian cycle. Recurrent phases of consciousness are cognized and labelled. Transformations between phases of consciousness are often ritually controlled by society in order to control experiences that are in turn interpreted in terms of the society's cosmology. Recent developments in the biogenetic structural study of consciousness are summarized, including studies of transpersonal experiences, the development of consciousness in early life, and the advantages of neurophenomenology. (shrink)

We exploit properties of certain directed graphs, obtained from the families of sets with special effective enumeration properties, to generalize several results in computable model theory to higher levels of the hyperarithmetical hierarchy. Families of sets with such enumeration features were previously built by Selivanov, Goncharov, and Wehner. For a computable successor ordinal α, we transform a countable directed graph into a structure such that has a isomorphic copy if and only if has a computable isomorphic copy.A computable structure (...) is categorical if for all computable isomorphic copies of , there is an isomorphism from onto , which is . We prove that for every computable successor ordinal α, there is a computable, categorical structure, which is not relatively categorical. This generalizes the result of Goncharov that there is a computable, computably categorical structure, which is not relatively computably categorical.An additional relation R on the domain of a computable structure is intrinsically on if in all computable isomorphic copies of , the image of R is . We prove that for every computable successor ordinal α, there is an intrinsically relation on a computable structure, which not relatively intrinsically . This generalizes the result of Manasse that there is an intrinsically computably enumerable relation on a computable structure, which is not relatively intrinsically computably enumerable.The dimension of a structure is the number of computable isomorphic copies, up to isomorphisms. We prove that for every computable successor ordinal α and every n≥1, there is a computable structure with dimension n. This generalizes the result of Goncharov that there is a structure of computable dimension n for every n≥1.Finally, we prove that for every computable successor ordinal α, there is a countable structure with isomorphic copies in just the Turing degrees of sets X such that relative to X is not . In particular, for every finite n, there is a structure with isomorphic copies in exactly the non- Turing degrees. This generalizes the result obtained by Wehner, and independently by Slaman, that there is a structure with isomorphic copies in exactly the nonzero Turing degrees. (shrink)

This study aims to propose a rational reconstruction of the theory-core ofWittgenstein's Tractatus, in order to bring into prominence its theoreticaland philosophical sources, its epistemological nature and metaphysical significance.The main idea of my approach is that when we take due account of the scientific andphilosophical context of the Tractatus, we see that its central philosophicalinnovation is a new form of metaphysics, namely a structural theory of representation.``I am not interested in constructing a building,so much as in having a (...) perspicuous view of the foundation of possible buildings.''. (shrink)

This study aims to propose a rational reconstruction of the theory-core ofWittgenstein's Tractatus, in order to bring into prominence its theoreticaland philosophical sources, its epistemological nature and metaphysical significance.The main idea of my approach is that when we take due account of the scientific andphilosophical context of the Tractatus, we see that its central philosophicalinnovation is a new form of metaphysics, namely a structural theory of representation.``I am not interested in constructing a building,so much as in having a (...) perspicuous view of the foundation of possible buildings.''``Und nun sehen wir die gegenseitige Stellung von Logik und Mechanik.''. (shrink)

We explore a non-classical, universal set theory, based on a purely 'structural' conception of sets. A set is a transfinite process of unfolding of an arbitrary binary structure, with identity of sets given by the observational equivalence between such processes. We formalize these notions using infinitary modal logic, which provides partial descriptions for set structures up to observational equivalence. We describe the comprehension and topological properties of the resulting set-theory, and we use it to give non-classical solutions to (...) classical paradoxes, to prove fixed-point theorems that relate recursion and corecursion, to formalize 'super-large', reflexive categories and 'super-large' circular modes, and to provide 'natural' solutions for domain equations. (shrink)

The article extends the critique of structuration theory from a critical realist perspective, in particular by demonstrating how its theoretical shortcomings are manifest in management accounting research. Examining of one of the most cited structuration-based accounting studies and other more recent structuration-based accounting studies, the article highlights what accounting researchers who have embraced a structuration lens may have ignored. It also demonstrates why accounting researchers could not get a better theoretical purchase out of structuration. (...) We find that a critical realist account provides a far more in-depth account of budgeting changes and is likely to avoid the problems encountered in using a structuration theoretical lens. The article has important implications for accounting researchers as it demonstrates that analytical dualism instead of duality has much better potential to offer deeper understanding of accounting changes. (shrink)

Several papers (e.g. [7, 23, 42]) have recently sought to give general frameworks for online structures and algorithms ([4]), and seeking to connect, if only by analogy, online and computable structure theory. These initiatives build on earlier work on online colouring and other combinatorial algorithms by Bean [10], Kierstead, Trotter et al. [48, 54, 57] and others, as we discuss below. In this paper we will look at such frameworks and illustrate them with examples from the first author’s MSc (...) Thesis ([58]). In this thesis, Askes looks at online, adversarial online and strongly online algorithms and structures. Additionally, we prove some new theorems about online algorithms on graphs of bounded pathwidth as well as some new results on punctually 1-decidable structures. (shrink)

Various argumentation analysis tools permit the analyst to represent functional components of an argument (e.g., data, claim, warrant, backing), how arguments are composed of subarguments and defenses against potential counterarguments, and argumentation schemes. In order to facilitate a study of argument presentation in a biomedical corpus, we have developed a hybrid scheme that enables an analyst to encode argumentation analysis within the framework of Rhetorical Structure Theory (RST), which can be used to represent the discourse structure of a text. (...) This paper describes the hybrid representation scheme and illustrates its use for investigation of contexts that license omission of elements of an argument. The analyses given in the paper involve reconstruction of enthymemes. Defeasible argumentation schemes serve as a constraint on reconstruction. In addition, the examples illustrate several other types of contextual constraints on reconstruction of enthymemes. (shrink)

It is argued that some elusive “entropic” characteristics of chemical bonds, e.g., bond multiplicities (orders), which connect the bonded atoms in molecules, can be probed using quantities and techniques of Information Theory (IT). This complementary perspective increases our insight and understanding of the molecular electronic structure. The specific IT tools for detecting effects of chemical bonds and predicting their entropic multiplicities in molecules are summarized. Alternative information densities, including measures of the local entropy deficiency or its displacement relative to (...) the system atomic promolecule, and the nonadditive Fisher information in the atomic orbital resolution(called contragradience) are used to diagnose the bonding patterns in illustrative diatomic and polyatomic molecules. The elements of the orbital communication theory of the chemical bond are briefly summarized and illustrated for the simplest case of the two-orbital model. The information-cascade perspective also suggests a novel, indirect mechanism of the orbital interactions in molecular systems, through “bridges” (orbital intermediates), in addition to the familiar direct chemical bonds realized through “space”, as a result of the orbital constructive interference in the subspace of the occupied molecular orbitals. Some implications of these two sources of chemical bonds in propellanes, π-electron systems and polymers are examined. The current–density concept associated with the wave-function phase is introduced and the relevant phase-continuity equation is discussed. For the first time, the quantum generalizations of the classical measures of the information content, functionals of the probability distribution alone, are introduced to distinguish systems with the same electron density, but differing in their current(phase) composition. The corresponding information/entropy sources are identified in the associated continuity equations. (shrink)

A recent paper in this journal by Hardcastle et al. in 2005 argued that Anthony Giddens’s Structuration Theory (ST) might usefully inform sociological nursing research. In response, a critique of ST based upon the Realist Social Theory of Margaret Archer is presented. Archer maintains that ST is fatally flawed and, in consequence, it has little to offer nursing research. Following an analysis of the concepts epiphenomenalism and elisionism, it is suggested that emergentist Realist Social Theory captures (...) or describes a more coherent explanatory vision of social reality than other perspectives and nurse researchers are advised to consider its potential. (shrink)

Book synopsis: What is the relationship between philosophy, social theory and empirical research? In what ways can we claim to 'know' the social world? What properties does the social world possess and what are their implications? This ground-breaking and multi-disciplinary book brings together a distinguished team of leading thinkers to discuss issues surrounding and informing questions such as: what is the 'social', in what ways can we 'know' it, and how can our findings be validated? These issues are discussed (...) in an accessible way, including the relationship of philosophical and research issues to each other, the nature of social reality, properties that may be ascribed to the social, research accounts and rhetorical 'persuasion', and the relations between 'gender and knowing'. The overall concern of the book is to clarify how and in what ways we can claim to know the social world and what implications and consequences this may have for social scientific practice. For too long philosophers, social theorists and methodologists have talked past each other, often unaware of the mutually beneficial insights that each offers the other. This book is intended to contribute to a more constructive encounter and dialogue in order to advance understanding of the problems and possibilities surrounding the quest to know the social world. With this overall aim in mind, it will be essential reading for advanced undergraduates and postgraduate students in the social sciences, as well as philosophers, social theorists, methodologists and social researchers in general. (shrink)

Theoretical frames for analyzing information in biological and molecular multicomponent structures are proposed. The mathematical foundations of the proposal are presented. Both the information encoded in structures is defined and the method of calculating the amount of this information is introduced. The proposed approach is applied to the operation of a molecular multicomponent machine.

Through an historical investigation of the concept of the zero from Gauthiot to Deleuze, this paper examines a peculiar object, the signifying nothing. Saussure founds his science of linguistics on the claim that the opposition between something and nothing provides the minimal condition for the existence of language. What is this nothing and how can it be recognized? What can account for the zero—as structuralist linguists call a marked nothing—in language? The essay first considers linguists’ responses to these problems, before (...) turning to later redeployments of the zero as the index for the fundamental questions raised by the structuralist project as such. (shrink)

Homeostatic Property Cluster (HPC) theory suggests that species and other biological taxa consist of organisms that share certain similarities. HPC theory acknowledges the existence of Darwinian variation within biological taxa. The claim is that “homeostatic mechanisms” acting on the members of such taxa nonetheless ensure a significant cluster of similarities. The HPC theorist’s focus on individual similarities is inadequate to account for stable polymorphism within taxa, and fails properly to capture their historical nature. A better approach is to (...) treat distributions of traits in species populations as irreducible facts, explained in terms of selection pressures, genealogy, and other evolutionary factors. We call this view Population Structure Theory (PST). PST accommodates the view, implicit in biological systematics, that species are identified by reference to particular historical populations. (shrink)

Suppose \ is a computable real. We extend previous work of Clanin, Stull, and McNicholl by determining the degrees of categoricity of the separable \ spaces whose underlying measure spaces are atomic but not purely atomic. In addition, we ascertain the complexity of associated projection maps.

The maturation of the physical image has made apparent the limits of our scientific understanding of fundamental reality. These limitations serve as motivation for a new form of metaphysical inquiry that restricts itself to broadly scientific methods. Contributing towards this goal we combine the mathematical universe hypothesis as developed by Max Tegmark with the axioms of Stewart Shapiro’s structure theory. The result is a theory we call the Theory of the Structural Multiverse (TSM). The focus is on (...) informal theory development and constraint satisfaction. Some empirical consequences of the theory are worked out, in particular the feasibility of a predictive observer selection effect. The explanatory, unifying, and generative powers of the theory are found to substantially support the theory. The TSM is demonstrated to be an empirically significant scientific theory that is foundational to and continuous with the rest of the scientific image. (shrink)

Using Giddens’s structuration theory and empirical data from a study with social enterprise stakeholders, the article explores how social entrepreneurs and the structure co-create one another. We show that the development of the contemporary significance of social entrepreneurialism lies in a combination of complex context-specific structural forces and the activities of agents who initiate, demand, and impose change. Social entrepreneurs intentionally tackle social challenges, but their actions bring unintentional results, such as the transfer of state responsibilities onto communities. (...) Direct outputs of their activities introduce indirect outcomes, bringing wider changes in culture and policy. The evolving nature of entrepreneurship and a number of factors that interplay in time and space, and enable and constrain social entrepreneurs, confirm the applicability of Giddens’s theory in the field of social entrepreneurship. The originality of this article derives from revealing mechanisms that enable social entrepreneurs to emerge and reasons for structural change. We also build a “co-creation model of structure and agency” that can be used to “engineer” the process of social entrepreneurship. (shrink)

This paper presents an enhanced ontology formalization, combining previous work in Conceptual Structure Theory and Order-Sorted Logic. Most existing ontology formalisms place greater importance on concept types, but in this paper we focus on relation types, which are in essence predicates on concept types. We formalize the notion of ‘predicate of predicates’ as meta-relation type and introduce the new hierarchy of meta-relation types as part of the ontology definition. The new notion of closure of a relation or meta-relation type (...) is presented as a means to complete that relation or meta-relation type by transferring extra arguments and properties from other related types. The end result is an expanded ontology, called the closure of the original ontology, on which automated inference could be more easily performed. Our proposal could be viewed as a novel and improved ontology formalization within Conceptual Structure Theory and a contribution to knowledge representation and formal reasoning (e.g., to build a query-answering system for legal knowledge). (shrink)