The Motherhood Wage Penalty: High-Earning Women Are Doing Better Than Before

In this data snapshot, author Rebecca Glauber discusses her research on the motherhood wage penalty. In her study, she asked whether the motherhood wage penalty has declined over the past few decades. A decrease began in the 1990s but was most pronounced for high-earning women and smallest for lower-earning women. Median-earners fell somewhere in between. Today, high-earning women, or those who make close to $100,000 per year, no longer pay a motherhood penalty. But low earners, or those struggling on$15,000 per year, do

The quantum mechanical theory of collisions

textLecture notes by Roy Glauber, Department of Physics, Harvard University. Cours professe a l'Ecole d'ete de physique theorique. Les Houches, Haute-Savoie, FranceEcole d'ete de physique theorique. Les Houches, Haute-Savoie, FrancePhysic

Family-friendly policies for rural working mothers

For working parents, family friendly work policies like paid sick days, flexible time, or medical insurance can reduce work-family conflict and lead to less absenteeism and higher productivity. Working parents in rural America, however, have less access to these policies than their urban counterparts

Hanbury-Brown and Twiss Intensity Correlations of Parabosons

This paper shows that in intensity correlation measurements there will be clear and unambiguous signals that new-physics particles are, or aren't, parabosons. For a parabosonic field in a dominant single-mode, there is a diagonal P-representation in the "even and odd coherent states" basis. It is used to analyze zero-time-interval intensity correlations of parabosons in a maximum-entropic state. As the mean number of parabosons decreases, there is a monotonic reduction to (2/p) of the constant bosonic ``factor of two'' proportionality of the second-order versus the squared first-order intensity correlation function.Comment: 16 pages; version 4 to add simple p-independent recursion relatio

Involuntary Part-Time Employment: A Slow and Uneven Economic Recovery

In this brief, author Rebecca Glauber reports that, although unemployment overall has returned to its pre-recession level, involuntary part-time employment is still much higher than it was before the Great Recession began--a trend that raises questions about the continuing ability of the economy to deliver employment security to people willing and able to work. Involuntary part-time employment is down 34 percent since the Great Recession but is still above its pre-recession level. If the involuntary part-time employment rate continues this pace of decline, it will not return to its pre-recession level until 2018, a full nine years after the official end of the recession. Racial disparities persist. Since the recession, involuntary part-time employment declined by over 30 percent for white, Asian, and Hispanic workers but by less than 20 percent for black workers. Among workers with less than a high school degree, 9 percent work part time involuntarily, compared to just 2 percent of college graduates. Involuntary part-time workers are more than five times as likely as full-time workers to live in poverty. As the economy continues to recover, Glauber recommends that the complexities of involuntary part-time employment and disparities in the recovery are explored

Wanting more but working less: involuntary part-time employment and economic vulnerability

Using data from the Current Population Survey, a national survey of U.S. households, this brief outlines a strong association between involuntary part-time employment and economic vulnerability. Author Rebecca Glauber reports that the involuntary part-time employment rate more than doubled between 2007 and 2012. For women, it rose from 3.6 percent to 7.8 percent and, for men, the rate increased from 2.4 percent in 2007 to 5.9 percent in 2012. Involuntary part-time employment is a key factor in poverty. In 2012, one in four involuntary part-time workers lived in poverty, whereas just one in twenty full-time workers lived in poverty. In 2012, involuntary part-time workers were nearly five times more likely than full-time workers to have spent more than three months of the previous year unemployed. Not only do part-time workers bring home less money than full-time workers, but they also tend to have fewer fringe benefits. Involuntary part-time workers face even greater penalties. As this brief describes, they are more likely to live in poverty and to experience sustained periods of unemployment

Title Quantum Optics and Heavy Ion Physics

I shall try to say a few words about two particular ways in which my own work has a certain relation to your work with heavy ions. My title is therefore "Quantum Optics and Heavy Ion Physics".Comment: Invited paper delivered at Quark Matter 2005 Conference, Budapest, Hungary, August 4, 2005, 11 pages, 5 figure

Globalizations for partial (co)actions on coalgebras

In this paper, we introduce the notion of globalization for partial module coalgebra and for partial comodule coalgebra. We show that every partial module coalgebra is globalizable exhibiting a standard globalization. We also show the existence of globalization for a partial comodule coalgebra, provided a certain rationality condition. Moreover, we show a relationship between the globalization for the (co)module coalgebra and the usual globalization for the (co)module algebra.Comment: 31 page

Coulomb-nuclear interference in pion-nucleus bremsstrahlung

Pion-nucleus bremsstrahlung offers a possibility of measuring the structure functions of pion-Compton scattering from a study of the small-momentum-transfer region where the bremsstrahlung reaction is dominated by the single-photon-exchange mechanism. The corresponding cross-section distribution is characterized by a sharp peak at small momentum transfers. But there is also a hadronic contribution which is smooth and constitutes an undesired background. In this communication the modification of the single-photon exchange amplitude by multiple-Coulomb scattering is investigated as well as the Coulomb-nuclear interference term.Comment: 21 pages, 5 figures. Eqs.(51,52) corrected; some new figure