David Castaneda

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Computers are an important part of modern education, yet many schoolchildren lack access to a computer at home. We test whether this impedes educational achievement by conducting the largest-ever field experiment that randomly provides free home computers to students. Although computer ownership and use increased substantially, we find no effects on any(More)
In-utero in-vivo injection and electroporation of the embryonic mouse neocortex provides a powerful tool for the manipulation of individual progenitors lining the walls of the lateral ventricle. This technique is now widely used to study the processes involved in corticogenesis by over-expressing or knocking down genes and observing the effects on cellular(More)
Any opinions, findings, conclusions, or recommendations expressed in this material are those of the author(s) and do not necessarily reflect the view of the National Poverty Center or any sponsoring agency. Abstract Computers are an important part of modern education, yet large segments of the population – especially low-income and minority children – lack(More)
ICID (Integrated Circuit IDentification) is a small mixed-signal cell that can be added to the test logic on a CMOS integrated circuit. It provides a unique 224 bit identification number that can be accessed during die test. This identification can be used to correlate test information for individual die on the wafer, through package test, and into the(More)
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