103,708 research outputs found
Cereal FACTS: Evaluating the Nutrition Quality and Marketing of Children's Cereals
Evaluates cereal companies' marketing practices in 2008-09, immediately before and after full implementation of their pledges to reduce unhealthy marketing to children. Ranks brands with combined scores for nutrition quality and marketing exposure
The Frozen Core Approximation and Nuclear Screening Effects in Single Electron Capture Collisions
Fully Differential Cross Sections (FDCS) for single electron capture from
helium by heavy ion impact are calculated using a frozen core 3-Body model and
an active electron 4-Body model within the first Born approximation. FDCS are
presented for H+, He2+, Li3+, and C6+ projectiles with velocities of 100
keV/amu, 1 MeV/amu, and 10 MeV/amu. In general, the FDCS from the two models
are found to differ by about one order of magnitude with the active electron
4-Body model showing better agreement with experiment. Comparison of the models
reveals two possible sources of the magnitude difference: the inactive
electron's change of state and the projectile-target Coulomb interaction used
in the different models. Detailed analysis indicates that the uncaptured
electron's change of state can safely be neglected in the frozen core
approximation, but that care must be used in modeling the projectile-target
interaction
Plug replaces weld filler as seal in complex casting
Expandable metal plug is inserted to provide a seal to support the mold core with small blocks, referred to as chaplets, during the casting of a complex volute. Weld-warpage and multiple X ray inspection are eliminated by use of this technique
Adaptation and Resilience of Interdependent Infrastructure Systems: a Complex Systems Perspective
The effects of disruption upon one or more components in interdependent infrastructure systems and the ability of
the system to return to normal operations, is investigated in this paper. This addresses the concept of resilience, and
examines the trade-off between redundancy and efficiency, as well as the adaptive ability of a system to respond to
disruptions and continue to operate, albeit not necessarily as it did initially
The Impact of Settlement Design on Tropical Deforestation Rates and Resulting Land Cover Patterns
Policymakers in the Brazilian Amazon face the challenge of meeting environmental and developmental goals as cities and towns within these tropical forests continue to face migration pressure. Alternative government planning strategies have been implemented to address forest clearing in conjunction with meeting social agendas. This paper uses panel estimation methods to investigate the impact of settlement design on land use. Results indicate that new settlement designs developed to further social interaction have had a negative impact on land cover and land use transformation. Thus, while new settlement designs appear to positively impact stated social goals, including greater contact between families and access to water and services, these social advances have come at the expense of environmental goals.deforestation, land use/land cover change, smart growth, settlement design, Amazon, Brazil, Environmental Economics and Policy, Land Economics/Use,
- …