Accounting for knowledge embedded in physical objects and environments : the role of artefacts in transferring knowledge

The intention to investigate the role of artefacts (objects and environments) in codifying, embedding and disseminating knowledge was inspired by an awareness that organisations across all sectors are increasingly being asked not only to provide products in the first instance, but also to support them throughout their service life. Thus a move from product-delivery to product-service designs is suggested. This paper considers ways in which knowledge can be embedded into the physical properties of artefacts and how this can consequently aid the dissemination and management of knowledge in and across stages of life cycles. A literature review and fieldwork based on an ethnomethodological approach are used to investigate this topic. Accounts of the situated meaning of artefacts within social processes are obtained using ethnographic armchair research. Unique adequacy is used to achieve an understanding of how people make sense of artefacts. The initial findings of the current research show that knowledge can be embedded or encoded into the physical properties of artefacts and that this can be successfully transferred from artefact to user

Diverse correlation structures in gene expression data and their utility in improving statistical inference

It is well known that correlations in microarray data represent a serious nuisance deteriorating the performance of gene selection procedures. This paper is intended to demonstrate that the correlation structure of microarray data provides a rich source of useful information. We discuss distinct correlation substructures revealed in microarray gene expression data by an appropriate ordering of genes. These substructures include stochastic proportionality of expression signals in a large percentage of all gene pairs, negative correlations hidden in ordered gene triples, and a long sequence of weakly dependent random variables associated with ordered pairs of genes. The reported striking regularities are of general biological interest and they also have far-reaching implications for theory and practice of statistical methods of microarray data analysis. We illustrate the latter point with a method for testing differential expression of nonoverlapping gene pairs. While designed for testing a different null hypothesis, this method provides an order of magnitude more accurate control of type 1 error rate compared to conventional methods of individual gene expression profiling. In addition, this method is robust to the technical noise. Quantitative inference of the correlation structure has the potential to extend the analysis of microarray data far beyond currently practiced methods.Comment: Published in at http://dx.doi.org/10.1214/07-AOAS120 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org

Study for identification of Beneficial Uses of Space (BUS) (phase 2). Volume 1: Executive summary

A study was conducted to analyze the benefits to the world which can be realized from space manufacturing processes. The study envisaged the use of the space shuttle and manned space stations for the purpose. For each proposed operation a data base and rationale were established for those processes or portions of processes which would be improved by performance in the orbital environment. The four experiments which were recommended for the initial investigation are identified. The procedures for conducting the weightless manufacturing processes are outline

Compliance with the Institutional Wage in Dualistic Models

This research extends simple two-sector models in order to inquire the impact of the extent of coverage or enforcement of minimum wage legislation in one of the sectors on the equilibrium outcome. Two versions of institutional wage avoidance are presented. They may be seen as representing different institutional detection rules: one working through worker complaint, the other through firm sampling inspection (and enforcement) by the legal system. Both cases are modelled as enlargements of two dualistic models: Harris-Todaro (the wage in the other sector is market determined) and Bhagwati-Hamada (the wage in the other sector is institutionally fixed and coverage is complete). Impact on population flows of changes in degree of coverage (compliance) is also confronted with the effect of a change in the institutional wage for each scenario.Migration, Mobility, Minimum Wages, Segmented Labor Markets, Informal Sector, Regional Labor Markets, Dualistic Models, Coverage.

Clarifying Conversations: Understanding Cultural Difference in Philosophical Education

The goal of this essay is to explain how Wittgenstein's philosophy may be helpful for understanding and addressing challenges to cross-cultural communication in educational contexts. In particular, the notions of “hinge,” “intellectual distance,” and “grounds” from On Certainty will be helpful for identifying cultural differences. Wittgenstein's dialogical conception of philosophy in Philosophical Investigations will be helpful for addressing that cultural difference in conversation. While here can be no panacea to address all potential sources of confusion, Wittgenstein's philosophy has strong resources that are helpful for curbing some of our human tendencies to misunderstand other people