We examine the effect of macroeconomic performance on poverty in the United States during the 1980s and 1990s. Our study advances research on this issue in a variety of ways: we utilize variation across the states rather than relying on over-time trends for the country as a whole; we analyze cross-state variation in both levels and change over time; we disentangle the impact of three different ...

In 1996, after two decades of increasing participation in cash and noncash public assistance programs by immigrant households (Borjas and Hilton, 1996), the Personal Responsibility and Work Opportunity Reconciliation Act (PRWORA) drastically altered the availability of federal public assistance to legal immigrants but ostensibly not to refugees. Refugees were given a 5-year exemption from rules...

Many empirical questions in economics and other social sciences depend on causal effects of programs or policies. In the last two decades much research has been done on the econometric and statistical analysis of the effects of such programs or treatments. This recent theoretical literature has built on, and combined features of, earlier work in both the statistics and econometrics literatures....

We study the issue of mobile wireless network (MWN) connectivity. In particular, we investigate the smallest communication or transmission range of the nodes necessary for connectivity of MWNs, which we call the critical transmission range (CTR). Unlike many of existing studies, however, the mobilities of the nodes are not assumed homogeneous, and the locations of the nodes are not identically ...

The three dimensional circuit (3D-IC) brings forth new challenges to physical design such as allocation and management of through-silicon-vias (TSVs). Meanwhile, the thermal issues in 3D-IC becomes significant necessitating the use of active cooling schemes such as micro-channel liquid coolings. Both TSVs and micro-channels go through the interlayer regions of 3D-IC resulting in potential resou...

believe that this project will enable:-greater awareness amongst academics of the problems in industry,-researchers to collaborate to produce more effective solutions to these problems ,-new and prospective researchers quickly and efficiently to come up to speed on the state of the art in EDI, and-the development of a forum for discussion amongst those interested in resolving outstanding issues...

BUMC PROCEEDINGS 2003;16:172–173 The research being conducted through Baylor Research Institute (BRI) is one of Dallas’ best-kept secrets. Few people know that physicians and scientists in Baylor Health Care System have almost 500 active protocols. The focus is to move advances from the bench to the bedside, with programs in basic science, mechanisms of disease, clinical effectiveness, clinical...

The McGovern Institute for Brain Research at MIT is a research and teaching institute committed to advancing human understanding and communications. The goal of the McGovern Institute is to investigate and ultimately understand the biological basis of higher brain function in humans. The institute is conducting interdisciplinary research that combines and extends the results of recent breakthro...

The development in the last decade of methodology for measuring and scaling household food insecurity and hunger in U.S. populations makes possible systematic examination of the ways in which hunger and food insecurity affect individuals and families. The impact on children has always been of primary concern for policy, advocacy, and science because of the vulnerability of children to long-term...