UMD Theses and Dissertations

Permanent URI for this collectionhttp://hdl.handle.net/1903/3

New submissions to the thesis/dissertation collections are added automatically as they are received from the Graduate School. Currently, the Graduate School deposits all theses and dissertations from a given semester after the official graduation date. This means that there may be up to a 4 month delay in the appearance of a given thesis/dissertation in DRUM.

More information is available at Theses and Dissertations at University of Maryland Libraries.

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    Trends and Strategies of News on Social Media in the U.S.: A Multimethod Analysis
    (2019) Herd, Maria; Yaros, Ronald; Journalism; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    There is growing interest in how social media and news interact, but much of that information is not widely available because news organizations pay third party analytics services for proprietary data. This study, however, employs a multimethod design to explore the issue. First, a quantitative analysis of audience data and social media trends is based on an aggregate of metrics (Parse.ly) from hundreds of news organizations to identify the most popular news categories on the top social networks (Facebook, Twitter, Pinterest, LinkedIn, Instagram, and Reddit). Second, qualitative interviews are conducted with social media strategists at four U.S. news organizations to capture emerging trends of best social media practices within newsrooms, including humanizing content, shifting coverage, training, encouraging subscriptions, third-party tools, and crowdsourcing.
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    THE DEVELOPMENT, CALIBRATION, AND USE OF A SPATIO-TEMPORAL MODEL FOR THE DESIGN AND EVALUATION OF CONSTRUCTED WETLANDS BASED ON SUSTAINABLITY METRICS
    (2014) Olszewski, Jennifer Marie; McCuen, Richard H; Civil Engineering; Digital Repository at the University of Maryland; University of Maryland (College Park, Md.)
    The focus of this research was the development of a spatio-temporal model of a constructed wetland that can be used to evaluate policy elements and design practices from the perspective of wetland sustainability. The model was calibrated with data obtained from a wetland that treats runoff from an agricultural field. Sustainability metrics were developed to reflect an array of wetland functions including wildlife habitat, flood control, downstream hydrologic regime, wetland water balance, groundwater recharge and baseflow maintenance, aesthetics, and water quality functions. The model can be optimized by the user across this array of wetland functions, each of which was defined in terms of metrics relevant to sustainability. Stakeholders will be able to weight the metrics for each of these wetland functions in order to maximize sustainability for their specific goals. Optimally, this model will aid design engineers and policy makers in designing constructed wetlands as a function of necessary functions, location, and influent water quantity and quality characteristics.