منابع مشابه
Scientific Correspondence Zinnia. Everybody Needs Good Neighbors
Cells in an organism exist within a social context— the sum of interactions with neighboring cells help to define the nature of each individual. The Zinnia system provides a unique opportunity to study in vitro the interactions between different plant cell types and the consequences for commitment to a particular cell fate. Zinnia is a model system in which mesophyll cells, released from young ...
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Everybody Needs Good Neighbours? Evidence from Students’ Outcomes in England We estimate the effect of neighbours’ characteristics and prior achievements on teenage students’ educational and behavioural outcomes using census data on several cohorts of secondary school students in England. Our research design is based on changes in neighbourhood composition caused explicitly by residential migra...
متن کاملGood Markets Make Bad Neighbors
In their manuscript, Corsaro, Hunt, Kroovand Hipple, and McGarrell (2012, this issue) provide a valuable contribution to the literature regarding focused deterrence with an econometric evaluation of the High Point Drug Market Intervention (DMI). By employing a difference-in-difference Poisson panel regression framework, as well as group-based trajectory analyses, these authors examine the High ...
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The glomerulus of the mammalian kidney is an intricate structure that contains an unusual filtration barrier that retains higher molecular weight proteins and blood cells in the circulation. Recent studies have changed our conception of the glomerulus from a relatively static structure to a dynamic one, whose integrity depends on signaling between the three major cell lineages: podocytes, endot...
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Abstract— Consider a wireless system with multiple and independent user-base pairings over some region. Each user tries to greedily optimize its performance, and eventually a simultaneous water-filling fixed point is reached. Here we seek to analytically understand properties of different water-filling fixed points. In so doing we show that water-filling alone does not generally result in optim...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 2001
ISSN: 1532-2548,0032-0889
DOI: 10.1104/pp.010883