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Now showing items 171-180 of 245
The effects of native advertisement on the U.S. news industry/
(Massachusetts Institute of Technology, 2019)
The migration of news to the web has given advertisers new opportunities to target readers with ever more personal and engaging ads. This sponsored content, known as native advertising, is placed in news publications often ...
Investigating the role of microglia in myelin development
(Massachusetts Institute of Technology, 2021)
We investigate the role of microglia in myelin development. Myelination is an essential process in early development that consists of the ensheathment of axons by myelin, which ensures rapid conduction of action potentials. ...
An exercise in selecting low-cost air quality sensor placements within an urban environment
(Massachusetts Institute of Technology, 2021)
Air pollution poses the most important environmental health risk to citizens of major cities all over the world. The high cost of current monitoring programs means that enforcement of current regulation, such as the United ...
Tagging wild cetaceans : investigating the balance between more and less invasive techniques
(Massachusetts Institute of Technology, 2015)
On-animal tags provide an incredible window into the world of cetaceans, allowing researchers to track movements across ocean basins and investigate fine-scale behavior deep below the surface. The earliest cetacean tags ...
Modeling of material recovery facility performance with applications for life cycle assessment
(Massachusetts Institute of Technology, 2017)
Single stream recycling programs improve participation rates and divert more end-of-life products from landfill to recycling. The resulting mixture of waste must be sorted, however, before individual materials can be ...
Public health impacts of excess NOx̳ emissions from Volkswagen diesel passenger vehicles in Germany
(Massachusetts Institute of Technology, 2017)
In September 2015, the Volkswagen Group (VW) admitted the use of "defeat devices" designed to lower emissions measured during VW vehicle testing for regulatory purposes. Globally, 11 million cars sold between 2008 and 2015 ...
Emergence of second-generation low earth orbit satellite constellations : a prospective technical, economic, and policy analysis
(Massachusetts Institute of Technology, 2018)
Modern proposals for Low Earth Orbit (LEO) satellite constellations underscore the tremendous potential and versatility of distributed spacecraft missions (DSMs), but they have also begun to stress the limits of the existing ...
Air quality co-benefits of renewable energy policy in the U.S.
(Massachusetts Institute of Technology, 2018)
Despite lawmaker interest in transitioning electricity systems toward renewable energy sources and in mitigating harmful air pollution, the extent to which sub-national renewable energy policies in the U.S. can improve air ...
Opportunities for U.S.-China scientific collaboration in building a bilateral quantum network
(Massachusetts Institute of Technology, 2020)
From advancements in time transfer to networked science, quantum networks can enable a new host of experiments that would not otherwise be achievable. We can learn a lot about building such a network to connect quantum ...
Understanding the effect of intermittent water supply on drinking water quality
(Massachusetts Institute of Technology, 2021)
There are nearly 1 billion people who obtain their drinking water through piped distribution networks that operate intermittently. Intermittent Water Supply (IWS) operations allow for periods of stagnation and depressurization ...