Fifty five planetary nebulae containing micro-structures of low-ionization (LIS) are analyzed in this review in terms of LIS morphology, kinematics, and physical and excitation properties. We attempt to address the issue of their origin through the comparison of LIS properties with the main shells of the nebulae, as well as the contrast with the theoretical model predictions. We finally conclud...

One of the key questions in the study of language concerns the architecture of the grammar. At issue is the nature of and relationship between the systems that generate linguistic output. The present paper tests the predictions of two competing theories of grammatical architecture for a variable process of h-deletion in connected speech. A usage-based theory of grammar predicts that this phonet...

Abstract. The paper develops a necessary condition for the regularity of a multivariate refinable function in terms of a factorization property of the associated subdivision mask. The extension to arbitrary isotropic dilation matrices necessitates the introduction of the concepts of restricted and renormalized convergence of a subdivision scheme as well as the notion of subconvergence, i.e., th...

This paper presents the operation of tangential dilation, which describes the touching of differentiable surfaces. It generalizes the classical dilation, but is invertible. It is shown that line segments are eigenfunctions of this dilation, and are parallel transported, and that curvature is additive. We then present the slope transform which provides tangential morphology with the analytical p...

This paper examines the set-theoretic interpretation of morphological filters in the framework of mathematical morphology and introduces the representation of classical linear filters in terms of morphological correlations, which involve supremumlinfimum operations and additions. Binary signals are classified as sets, and multilevel signals as functions. Two set-theoretic representations of sig...

This paper investigates certain aspects of the syntax andmorphology of argument encoding in Lavukaleve in a theory of grammar in which morphology interprets the output of syntax (Halle &Marantz (1993, 1994), Noyer (1992), Harley &Noyer (2003)). I provide a syntactic analysis that is pursued within the framework of the Minimalist Program (Chomsky (2000, 2001)) and a comprehensive analysis of inf...

It has been suggested that skeletal muscle mitochondria play a key role in high fat (HF) diet induced insulin resistance (IR). Two opposite views are debated on mechanisms by which mitochondrial function could be involved in skeletal muscle IR. In one theory, mitochondrial dysfunction is suggested to cause intramyocellular lipid accumulation leading to IR. In the second theory, excess fuel with...

Ever since his dissertation (1977), Geert Booij has been well known to the linguistic community as phonologist and morphologist. He is (together with Jaap van Marle) co-founder and editor of the well-established Yearbook of Morphology, published since 1988, and he is also one of the editors of the international handbook of morphology (Booij, Lehmann, & Mugdan 2000). In 1995 he, together with hi...

1 Morphology with or without Affixes The last few years have seen the emergence of several clearly articulated alternative approaches to morphology. One such approach rests on the notion that only stems of the so-called lexical categories (N, V, A) are morpheme "pieces" in the traditional sense—connections between (bundles of) meaning (features) and (bundles of) sound (features). What look like...