5,233,676 research outputs found
A Simple Introduction to Grobner Basis Methods in String Phenomenology
In this talk I give an elementary introduction to the key algorithm used in
recent applications of computational algebraic geometry to the subject of
string phenomenology. I begin with a simple description of the algorithm itself
and then give 3 examples of its use in physics. I describe how it can be used
to obtain constraints on flux parameters, how it can simplify the equations
describing vacua in 4d string models and lastly how it can be used to compute
the vacuum space of the electroweak sector of the MSSM.Comment: 13 pages, Prepared for Mathematical Challenges in String
Phenomenology, ESI Vienna, Austria, Oct 6-15, 200
Are Eyebrows Going to Be Talked of in Connection with the Eye of God? Wittgenstein and Certainty in the Debate between Science and Religion
In this paper I will argue that we can chart such a middle course through an exploration of Ludwig Wittgensteinās thought (particularly that advanced in On Certainty and Lectures and Conversations on Aesthetics, Psychology and Religious Belief). I will use his thesis that meaning and certainty are context dependent to investigate how meaning is produced in science and in religion. I will start with the recognition that any system of thought must take certain basic propositions as criteria for further investigation and explore how Wittgenstein defines this idea. Next I will try to establish that religion and science do, indeed, function as two different systems or language games by illustrating their differing criteria for truth. In so doing I will reference both Wittgensteinās works and that of some anthropologists of religion, whose work has explored a definition of religion through its use, which mirrors Wittgensteinās location of meaning. I will then discuss how we can pick between systems within a given context by requiring that a system stand up to the criteria of justification set up for that situation
What normative terms mean and why it matters for ethical theory
This paper investigates how inquiry into normative language can improve substantive normative theorizing. First I examine two dimensions along which normative language differs: āstrengthā and āsubjectivity.ā Next I show how greater sensitivity to these features of the meaning and use of normative language can illuminate debates about three issues in ethics: the coherence of moral dilemmas, the possibility of supererogatory acts, and the connection between making a normative judgment and being motivated to act accordingly. The paper concludes with several brief reflections on the theoretical utility of the distinctionāat least so-calledābetween ānormativeā and ānon-normativeā language and judgment. Clarifying the language we use in normative conversation and theorizing can help us diagnose problems with bad arguments and formulate better motivated questions. This can lead to clearer answers and bring into relief new theoretical possibilities and avenues to explore
PuLSE-I: Deriving instances from a product line infrastructure
Reusing assets during application engineering promises to improve the efficiency of systems development. However, in order to benefit from reusable assets, application engineering processes must incorporate when and how to use the reusable assets during single system development. However, when and how to use a reusable asset depends on what types of reusable assets have been created.Product line engineering approaches produce a reusable infrastructure for a set of products. In this paper, we present the application engineering process associated with the PuLSE product line software engineering method - PuLSE-I. PuLSE-I details how single systems can be built efficiently from the reusable product line infrastructure built during the other PuLSE activities
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Prison-based Education and Its New Pedagogical Perspective
This article presents how unconventional teaching environments, such as the prison system, can participate in the elaboration of new pedagogical methods and, in the process, reveal the diverse responses of marginalized groups to the study of the law. Over the course of this article, I provide valuable insight about underexplored teaching techniques to academics seeking to open up their approach beyond traditional methods. Through this partially reflective piece, I relay my experience as a law instructor in a maximum security prison, and demonstrate how those who have bore the brunt of the law can still think critically about legal topics. I also support the idea that by taking in the perspectives of peripheral groups, legal educators will be led to use innovative methods to deliver legal knowledge. Essentially this article explores the intersection between legal pedagogy and the prison system to uncover a site previously neglected by conventional work on criminology and education. Pointing out how experiencing the law differently can shape individual interpretations of legal knowledge, I hope to situate learning within a larger criminological process
Fan Charts as Useful āMapsā for an Inflation-Targeting Central Bank: An Illustration of the Sveriges Riksbankās Method for Presenting Density Forecasts of Inflation
In this study I illustrate the usefulness of Fan Charts for a central bank and show how they can be used to present its viewpoint on likely paths of future inflation. Exploiting a bivariate unobserved components model, I use the methodology followed by Blix and Sellin (1998) to demonstrate how subjective judgements can be systematically incorporated into model-based forecasts and effectively presented in a graphic manner.
Embedding object-oriented design in system engineering
The Unified Modeling Language (UML) is a collection of techniques intended to document design decisions about software. This contrasts with systems engineering approaches such as for exampleStatemate and the Yourdon Systems Method (YSM), in which the design of an entire system consisting of software and hardware can be documented. The difference between the system- and the software level is reflected in differences between execution semantics as well as in methodology. In this paper, I show how the UML can be used as a system-level design technique. I give a conceptual framework for engineering design that accommodates the system- as well as the software level and show how techniques from the UML and YSM can be classified within this framework, and how this allows a coherent use of these techniques in a system engineering approach. These ideas are illustrated by a case study in which software for a compact dynamic bus station is designed. Finally, I discuss the consequences of this approach for a semantics of UML constructs that would be appropriate for system-level design
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The importance of relational thinking in the practice of psycho-social research: ontology, epistemology, methodology and ethics
The object relations and relational psychoanalytic traditions can have a profound effect on the practices of social science research and, in the UK, this is taking place largely in the tradition that has come to be called āpsycho-socialā. My own research practice has been moving in this direction for some time and it has become evident to me that the use of psychoanalytic concepts that derive from the object relations and relational traditions have radical effects on every aspect of research. By every aspect, I refer first to the substantive analysis of phenomena that have social and psychological aspects (which surely includes most phenomena of interest to social science). I also refer to the trio of principles informing research that I refer to in the title of this chapter as ontology (how the person as subject of research is theorised), epistemology (how the status of the knowledge generation process is understood) and methodology (how these together inform how the researcher goes about finding out). Not in the title, but also implicated, is the subject of research ethics. After an outline of the project that I use as an illustration, subsequent sections of this chapter deal with ontology, epistemology, methodology and research ethics
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