In this open ing prov o ca tion, Freud and Heidegger make as ser tions which stand, prima fa cie, in ex treme op po si tion to one an other—with Derrida sit u ated, not sur pris ingly, some where in-be tween. But be tween what? What is the philo soph i cal sig nif i cance of the cog ni tive re la tion one stands in with re spect to one’s own death? Be tween (1) Heidegger’s as ser tion that hold...

A high leve l v i e w o f the uncer ta in ty i n spec i f i cat ion i s presented t o explain the problems inherent in s o f t w a r e development and maintenance. The v i e w suppor ts the need f o r p ro to typ ing throughout s o f t w a r e develoDment and mainte nance.

The purpose of this study is to evaluate patient setup accuracy and quantify indi-vidual and cumulative positioning uncertainties associated with different hardware and software components of the stereotactic radiotherapy (SRS/SRT) with the frameless 6D ExacTrac system. A statistical model is used to evaluate positioning uncertainties of the different components of SRS/SRT treatment with the Br...

Many important issues in hydrological science are of a conceptual nature rather than computational or experimental. Valuable insight into these issues can be gained by means of critical conceptualism and a knowledge synthesis (KS) framework. By focusing on conceptual processes and not just form manipulations, KS develops the rational means for integrating physical knowledge bases relevant to th...

Uncertainty is an important linguistic phenomenon that is relevant in many areas of language processing. While earlier research mostly concentrated on the semantic aspects of uncertainty, here we focus on discourseand pragmaticsrelated aspects of uncertainty. We present a classification of such linguistic phenomena and introduce a corpus of Wikipedia articles in which the presented types of dis...

This work describes the techniques used to prepare and analyze a reflectance wavelength standard composed of three rare-earth oxides. A mixture of dysprosium oxide (DY20.1), erbium oxide (Er203). and holmium oxide (Ho20) provides a pressed powder specimen exhibiting a near infrared reflectance spectrum characterized by many discrete absorption minima in the wavelength range 700 to 2000 urn. The...

Within the possibilistic approach to uncer­ tainty modeling, the paper presents a modal logical system to reason about qualitative (comparative) statements of the possibility (and necessity) of fuzzy propositions. We re­ late this qualitative modal logic to the many­ valued analogues MVS5 and MVKD45 of the well known modal logics of knowledge and be­ lief 55 and KD45 respectively. Completeness ...

An a l t e r n a t i v e approach to uncer ta in inference in exper t systems is desc r i bed which might be r e g a r d e d as a s y n t h e s i s o f t e c h n i q u e s f r o m au tomat i c i n d u c t i o n and mathematical s t a t i s t i c s . I t u t i l i s e s a type o f p a t t e r n match ing in which compar isons are made between new cases (as yet u n c l a s s i f i e d ) and a dat...

C tainty regarding the risks of stent thrombosis in individual patients, and in particular how to balance this risk against that of surgical complications if antiplatelet therapy is continued throughout the perioperative period. This guideline provides consensus advice regarding (RACS), the Australian and New Zealand College of Anaesthetists (ANZCA), the Royal Australasian College of Dental Sur...

Classically, risk is characterised by a point value probability indicating the likelihood of occur­ rence of an adverse effect. However, there are domains where the attainability of objective numerical risk characterisations is increasingly being questioned. This paper reviews the argu­ ments in favour of extending classical techniques of risk assessment to incorporate meaningful qualitative an...