98 research outputs found
Afterschool Programs in America: Origins, Growth, Popularity, and Politics
The historical and recent growth of afterschool program (ASPs) in the U.S. is discussed in this article. Particular attention is given to the recent history of social and political influences that have led to growth and current popularity of ASPs. The article begins by reviewing changes in schooling and the labor force that created a supervision gap between the school day of children and work day of parents. This gap contributed to the need for afterschool child care. Next, influences leading to a growing recognition of the significance of school-age childcare for working families and their children, including research on the potential risks of self care and benefits of well-designed ASPs, are described. These discussions are contextualized alongside decades of social and political action and debate over the development of and funding for ASPs in America. Several key factors likely to affect after-school programming in the near future are discussed
Recommended from our members
Experiments for foam model development and validation.
A series of experiments has been performed to allow observation of the foaming process and the collection of temperature, rise rate, and microstructural data. Microfocus video is used in conjunction with particle image velocimetry (PIV) to elucidate the boundary condition at the wall. Rheology, reaction kinetics and density measurements complement the flow visualization. X-ray computed tomography (CT) is used to examine the cured foams to determine density gradients. These data provide input to a continuum level finite element model of the blowing process
International Nonregimes: A Research Agenda1
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/146934/1/j.1468-2486.2007.00672.x.pd
Recommended from our members
Wetting and free surface flow modeling for potting and encapsulation.
As part of an effort to reduce costs and improve quality control in encapsulation and potting processes the Technology Initiative Project ''Defect Free Manufacturing and Assembly'' has completed a computational modeling study of flows representative of those seen in these processes. Flow solutions are obtained using a coupled, finite-element-based, numerical method based on the GOMA/ARIA suite of Sandia flow solvers. The evolution of the free surface is solved with an advanced level set algorithm. This approach incorporates novel methods for representing surface tension and wetting forces that affect the evolution of the free surface. In addition, two commercially available codes, ProCAST and MOLDFLOW, are also used on geometries representing encapsulation processes at the Kansas City Plant. Visual observations of the flow in several geometries are recorded in the laboratory and compared to the models. Wetting properties for the materials in these experiments are measured using a unique flowthrough goniometer
Shirts Today, Skins Tomorrow: Dual Contests and the Effects of Fragmentation in Self-Determination Disputes
- âŠ