نتایج جستجو برای: macro economic benefits

تعداد نتایج: 529376  

Journal: :Khazar Journal of Humanities and Social Sciences 2019

2007
George J. Borjas

T he rapid increase in the size of the immigrant flow reaching the United States, the major changes in the national origin composition of the immigrant population, and the decline in the skills of immigrants relative to the skills of native workers have rekindled the debate over immigration policy. The current debate revives the old concerns over immigrants "taking jobs away" from native worker...

Journal: :Meteorological Applications 2002

Journal: :Transportation Research Procedia 2016

Journal: :Journal of Economic Perspectives 1995

Journal: :Relations industrielles 2005

2011
Ludovic Dumée Kallista Sears Jürg Schütz Niall Finn Mikel Duke Stephen Gray

In this study, we focus on processing and characterizing composite material structures made of carbon nanotubes (CNTs) and reproducibly engineering macro-pores inside their structure. Highly porous bucky-papers were fabricated from pure carbon nanotubes by dispersing and stabilizing large 1 μm polystyrene beads within a carbon nanotube suspension. The polystyrene beads, homogeneously dispersed ...

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