22,992 research outputs found
Helping with Domestic Violence: Legal Barriers to Serving Teens in Illinois
In the spring of 1999 the Center for Impact Research (CIR) and the Illinois Caucus for Adolescent Health conducted a study looking at the prevalence of domestic violence among teen mothers receiving Temporary Assistance for Needy Families in Chicago.1 In a sample of 474 teen mothers on the south and west sides of Chicago, CIR found that 55% of the young women had experienced some level of domestic violence at the hands of their boyfriends in the previous 12 months. The study also found a strong association between domestic violence and birth control sabotage, where teen girls' attempts to use birth control were undermined or thwarted by their partners.In qualitative interviews it became apparent that many of these low-income teen mothers were experiencing severe difficulties with escaping domestic violence due to a lack of temporary or permanent housing opportunities. CIR subsequently began to conduct research with the goal of identifying the legal and regulatory barriers to serving teen victims of domestic violence
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The distribution of asteroids: evidence from Antarctic micrometeorites
The relative abundances of types amongst 550 AMMs are reported. These suggest that C-type asteroids vary from petrologic type 1 to 3.2 and that the majority of S-type asteroids are chondrule-rich
Limit Models in Strictly Stable Abstract Elementary Classes
In this paper, we examine the locality condition for non-splitting and
determine the level of uniqueness of limit models that can be recovered in some
stable, but not superstable, abstract elementary classes. In particular we
prove:
Suppose that is an abstract elementary class satisfying
1. the joint embedding and amalgamation properties with no maximal model of
cardinality .
2. stabilty in .
3. .
4. continuity for non--splitting (i.e. if and is a
limit model witnessed by for some limit
ordinal and there exists so that does
not -split over for all , then does not -split over
).
For and limit ordinals both with cofinality , if satisfies symmetry for non--splitting (or just
-symmetry), then, for any and that are
and -limit models over , respectively, we have that
and are isomorphic over .Comment: This article generalizes some results from arXiv:1507.0199
Quadratic transformations of Macdonald and Koornwinder polynomials
When one expands a Schur function in terms of the irreducible characters of
the symplectic (or orthogonal) group, the coefficient of the trivial character
is 0 unless the indexing partition has an appropriate form. A number of
q-analogues of this fact were conjectured in math.QA/0112035; the present paper
proves most of those conjectures, as well as some new identities suggested by
the proof technique. The proof involves showing that a nonsymmetric version of
the relevant integral is annihilated by a suitable ideal of the affine Hecke
algebra, and that any such annihilated functional satisfies the desired
vanishing property. This does not, however, give rise to vanishing identities
for the standard nonsymmetric Macdonald and Koornwinder polynomials; we discuss
the required modification to these polynomials to support such results.Comment: 32 pages LaTeX, 10 xfig figure
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