This article examines the effects of residential segregation on the basis of poverty status and race for high school and college completion. Segregation effects are estimated by contrasting educational outcomes among persons raised in metropolitan areas with varying levels of segregation. This metropolitan-level approach provides two advantages in evaluating segregation effects over neighborhoo...

Tel1p and Mec1p Regulate Chromosome Segregation and Chromosome Rearrangements in Saccharomyces cerevisiae by Jennifer Lynn McCulley Department of Pharmacology and Cancer Biology Duke University Date:_______________________ Approved: ___________________________ Dr. Thomas D. Petes, Chair ___________________________ Dr. Sue Jinks-Robertson ___________________________ Dr. Daniel J. Lew ___________...

This report provides a comprehensive overview of 1990 and 2000 neighborhood dissimilarity indices measured for Blacks and Whites, Asians and Whites, and Hispanics and Whites among the nation’s 318 metropolitan areas, as well as 1220 places with populations exceeding 25,000 in 2000. Unlike most earlier studies which measure segregation on the basis of census tracts, this study measures segregati...

Kinetochore components have catalytic as well as structural activities. New evidence illustrates how these proteins integrate spindle morphogenesis with regulation of the timing and accuracy of chromosome segregation.

Spatial boundaries are a defining feature of a city’s social and spatial organization. Rivers, highways, and train tracks create excess distance between nearby locations and often mark social separation – they become dividing lines that are well known to residents. Qualitative studies are rich with insight about the local significance of boundaries, but they have been largely ignored in the qua...

Decomposition analysis is a critical tool for understanding the social and spatial dimensions of inequality, segregation, and diversity. In this paper, I propose a new measure – the Divergence Index – to address the need for a decomposable measure of segregation. Although the Information Theory Index has been used to decompose segregation within and between communities, I argue that it measures...

Meiotic chromosome segregation in mouse oocytes seems to rely on highly stable cohesins and CENP-A produced in the fetus and not replenished during postnatal life. Hence, demise of these proteins may underpin declining oocyte quality in ageing mammals and thus marks a major problem of reproductive health in humans.

This paper proposes a new method for analyzing the segregation between point distributions. Though there have been proposed numerous methods and measures in segregation analysis, they have at least three deficiencies: 1) statistical significance of segregation is not evaluated, 2) aspatial properties of points are not considered, and 3) the relationship between different dimensions of segregati...

This paper presents a Schelling-type checkerboard model of residential segregation formulated as a spatial game. It shows that although every agent prefers to live in a mixed-race neighborhood, complete segregation is observed almost all of the time. A concept of tipping is rigorously defined, which is crucial for understanding the dynamics of segregation. Complete segregation emerges and persi...

In this article, we report strong boron segregation to polycrystalline Si12x2yGexCy from polysilicon during thermal anneals in the temperature range of 800–900 °C. This effect is larger than previous reports of segregation to single-crystal Si12xGex and increases with carbon concentration. Segregation also occurs in polycrystalline Si12yCy , revealing that carbon by itself can drive the segrega...