Bipolar expansion at various stages of evolution has been recently observed in a number of AGB stars. The expansion is driven by bipolar jets that emerge late in the evolution of AGB winds. The wind traps the jets, resulting in an expanding, elongated cocoon. Eventually the jets break-out from the confining spherical wind, as recently observed in W43A. This source displays the most advanced evo...

Let D be the open unit disk of the complex plane. Its boundary, the unit circle of the complex plane, is denoted by ∂D. Let Kn := ( pn : pn(z) = n X k=0 akz , ak ∈ C , |ak| = 1 ) . The class Kn is often called the collection of all (complex) unimodular polynomials of degree n. Given a sequence (εn) of positive numbers tending to 0, we say that a sequence (Pn) of unimodular polynomials Pn ∈ Kn i...

For spaces of analytic functions defined on an open set in $\mathbb{C}^n$ that satisfy certain nice properties, we show operators preserve shift-cyclic are necessarily weighted composition operators. Examples for which this result holds true consist the Hardy space $H^p(\mathbb{D}^n) \, (0 < p \infty)$, Drury-Arveson $\mathcal{H}^2_n$, and Dirichlet-type $\mathcal{D}_{\alpha} (\alpha \in \mathb...

The present investigation was undertaken to determine the relation between the structure of various substrates and the action of serum choline esterase upon them. The comparison of activities with different esters should take into account two factors : the hydrolytic velocities compared should be linear functions of time, and these velocities should be independent of substrate concentration. Th...

We show that the image of a 2–dimensional set under d–dimensional, 2– parameter Brownian sheet can have positive Lebesgue measure if and only if the set in question has positive (d/2)–dimensional Bessel–Riesz capacity. Our methods solve a problem of J.-P. Kahane. Consider two independent d–dimensional Brownian motions X X(t) ; t 0 and Y Y (t) ; t 0. Let E 1 and E 2 denote two disjoint compact s...

In this paper, I defend a version of the medical model disability, which defines disability as an enduring biological dysfunction that causes its bearer significant degree impairment. We should accept model, argue, because it succeeds in capturing our judgments about what conditions do and not qualify disabilities, offers compelling explanation for makes condition count justifies why federal go...

This paper is motivated by a problem that arises in the study of partition functions of antiferromagnetic Potts models, including as a special case the chromatic polynomial. It relies on a theorem of Beraha, Kahane and Weiss, which asserts that the zeros of certain sequences of polynomials approach the curves on which a matrix has two eigenvalues with equal modulus. It is shown that (in general...

Categorial Parsing as Linear Logic Programming Philippe de Groote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Topology of Language Classes Sean A. Fulop and David Kephart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Individuation Cr...