ARCH-models have become popular for modelling nancial time series. They seem, at rst, however, to be incompatible with the option pricing approach of Black, Scholes, Merton et al., because they are discrete-time models and posess too much variability. We show that completeness of the market holds for a broad class of ARCH-type models de ned in a suitable continuous-time fashion. As an example w...

Relatively small changes in the shape of the soil water retention curve near saturation can signi®cantly a€ect the results of numerical simulations of variably saturated ̄ow, including the performance of the numerical scheme itself in terms of stability and rate of convergence. In this paper, we use a modi®ed form of the van Genuchten±Mualem (VGM) soil hydraulic functions to account for a very ...

We study an individual who faces a dynamic decision problem in which the process of information arrival is unobserved by the analyst. We derive two utility representations of preferences over menus of acts that capture the individual’s uncertainty about his future beliefs. The most general representation identi…es a unique probability distribution over the set of posteriors that the decision ma...

1) Perifolliculitis capitis abscedens et suffodiens, currently called dissecting cellulitis of the scalp, is classifi ed as primary scarring alopecia since the 2000 consensus statement. Recent publications do not associate this condition with fungal colonization. 2 The 2013 paper “What’s new in cicatricial alopecia?” indicates an infl ammatory process that attacks and destroys the stem cells of...

The adult form of type II glycogenosis (GSDII) is a slowly progressive disease, with a few notable exceptions of patients who remain remarkably stable for decades and others who quite suddenly start to decline very quickly. A number of GSDII patients with nontypical presentation are misdiagnosed or diagnosed late. Whole-body muscle NMR imaging has proven useful in identifying as yet unrecognise...

v * Corresponding author: [email protected] Rapid urban expansion, increased traffi c, ageing infrastructure, greater climatic variability, and the need for enhanced sustainability of urban water resources pose signifi cant challenges to conventional stormwater management. Innovative approaches are needed in order to mitigate the risk of fl ooding, pollution, and aquatic ecosystem degradat...

This paper presents a permissive subsorted partial logic used in the CoFI Algebraic Speciication Language. In contrast to other order-sorted logics, subsorting is not modeled by set inclusions, but by injec-tive embeddings allowing for more general models in which subtypes can have diierent data type representations. Furthermore, there are no restrictions like monotonicity, regularity or local ...

This paper summarizes attempts to incorporate fl y ash into aluminum castings to decrease the energy content, material content, cost, and weight of selected industrial components, while also improving selected properties. It is shown that fl y ash can be incorporated into an aluminum-alloy matrix using stir casting and pressure infi ltration techniques. The sand and permanent mold castings, whi...

Sir, Granulocyte colony-stimulating factor (G-CSF) is used in the haematological treatment of neutropenia following cytotoxic chemotherapy and haematological disorders; it encourages proliferation and diŒerentiation of granulocytes. G-CSF therapy is occasionally known to be associated with skin rash, including neutrophilic dermatosis (1), widespread folliculitis (2) and cutaneous vasculitis (3)...

| Tsirelson's stochastic di erential equation is called \celebrated and mysterious" by Rogers and Williams bd16ce. This note aims at making it a little more celebrated and a little less mysterious. Using a deterministic time-change, we translate the study of Tsirelson's equation into the study of \eternal" Brownian motion on the circle. This allows us to show that the ltration generated by any ...