Quasielastic K+ scattering in nuclei

The quasielastic scattering kaon-nucleus experiment performed at BNL is analyzed in a finite nucleus continuum random phase approximation framework, treating the reaction mechanism in Glauber theory up to two-step inelastic processes. A good description of the data is achieved, also providing a useful constraint on the strength of the effective particle-hole interaction in the scalar-isoscalar channel at intermediate momentum transfers.Comment: 4 pages, 3 figures, needs espcrc1 and epsfig; presented at the International Conference on Hypernuclear and Strange Particle Physics, BNL October 13-18, 199

Average pace and horizontal chords

We are motivated by a problem about running: If a race was completed in an average pace of P minutes per mile, is there necessarily some mile of the race that was run in exactly P minutes? The answer is no. We explain why, and describe the history of this celebrated problem, known as the Universal Chord Theorem. We also clarify and streamline the proof of a more powerful result by Heinz Hopf from 1937.Comment: 16 pages including appendix, 6 figure

Production of pace as collaborative activity

In this paper we investigate the concept of pace development and management among groups of people. We explore and compare groups visiting museums, and groups virtually co-located in a mixed reality system for a museum. In considering pace, and how to design to support it, we have to consider more than the speed or location of information display. We have to also take into consideration the social formation of pace through features such as the visitors' awareness of each other's location and attention. By considering aspects of collaboratively produced pace such as presenting engagement and disengagement, we offer suggestions as to how social handling of pace might be better supported by technology

Reflections on Hindi and history

textIn this paper, I consider historical periods, linguistic categories, and social theories in relation to Hindi in order to trace out the character and trajectory of the language. From sixteenth-century courtly contexts, to the adoption of the Devanagari script in the twentieth century by nationalists, Hindi has a polyvalent and yet specific history. I discuss these contexts in which social contact led to linguistic change and in which Hindi acquired many of the lexical, syntactical, and phonological characteristics by which it is recognized today. I conclude with a section that considers the motif of language and power, and I suggest that the production of knowledge and power in language use, offers both the means of distinction and expression or, in another sense, of hierarchy and communitas. A thread that runs throughout the paper is attention to the contexts in which language use enables elaboration and in which elaboration is eschewed in order to attain social unity. Pursuing a descriptive historical-linguistic project, I neither affirm nor deny the politics of such language use, but rather I indicate the ways in which actors and agents use Hindi to help articulate their agency.Asian Studie

Epistemology and Ontology of the Quality. An Introduction to the Enactive Approach to Qualitative Ontology

The concept of quality points at a significant philosophical problem. The issue of the ontological status of the qualities of experience and reality leads us to discuss the issues of naturalism and reductionism in philosophy of mind. I argue that a transcendental version of the enactive approach is able to address these issues, thanks to its conception of the relation between subject and object as dependent co-origination. In this way, the enactive approach constitutes an alternative to both the internalism and the externalism about qualities, constituting a process-oriented and relationist framework that can be fruitfully applied to the analysis of different ontological domains. In the conclusive section, I distinguish between an ontological and a metaphysical interpretation of this view, stressing the advantages of the former

Phenomenology, Empiricism, and Constructivism in Paolo Parrini's Positive Philosophy

In this work, I discuss the role of Husserl’s phenomenology in Paolo Parrini’s positive philosophy. In the first section, I highlight the presence of both empiricist and constructivist elements in Parrini’s anti-foundationalist and anti-absolutist conception of knowledge. In the second section, I stress Parrini’s acknowledgement of the crucial role of phenomenology in investigating the empirical basis of knowledge, thanks to its analysis of the relationship between form and matter of cognition. In the third section, I point out some lines of development of the phenomenological form of empirical realism as revealed in Parrini’s reflection, through a comparison of Husserl’s genetic phenomenology, Mary Hesse’s network model and the tradition of neutral monism