5 research outputs found
Characterizing the Habitable Zones of Exoplanetary Systems with a Large Ultraviolet/Visible/Near-IR Space Observatory
Understanding the surface and atmospheric conditions of Earth-size, rocky
planets in the habitable zones (HZs) of low-mass stars is currently one of the
greatest astronomical endeavors. Knowledge of the planetary effective surface
temperature alone is insufficient to accurately interpret biosignature gases
when they are observed in the coming decades. The UV stellar spectrum drives
and regulates the upper atmospheric heating and chemistry on Earth-like
planets, is critical to the definition and interpretation of biosignature
gases, and may even produce false-positives in our search for biologic
activity. This white paper briefly describes the scientific motivation for
panchromatic observations of exoplanetary systems as a whole (star and planet),
argues that a future NASA UV/Vis/near-IR space observatory is well-suited to
carry out this work, and describes technology development goals that can be
achieved in the next decade to support the development of a UV/Vis/near-IR
flagship mission in the 2020s.Comment: Submitted in response to NASA call for white papers: "Large
Astrophysics Missions to Be Studied by NASA Prior to the 2020 Decadal Survey
Estimating the adequacy of life insurance reserves
This project created a tool that will allow John Hancock to test how adequate their reserves are for a given life insurance policy under varying interest rates and mortality assumptions for each individual. Policies were tested and analyzed to estimate the parameters that would make them adequate. John Hancock was presented with this tool that returns adequacy results across different interest rate scenarios and morality distributions, where an adequate policy implies that it is funded sufficiently to cover expenses
Paired Comparison Models for Ranking National Soccer Teams
National soccer teams are currently ranked by soccer’s governing body, the Federation Internationale de Football Association (FIFA). Although the system used by FIFA is thorough, taking into account many different factors, many of the weights used in the system’s calculations are somewhat arbitrary. It is investigated here how the use of a statistical model might better compare the teams for ranking purposes. By treating each game played as a pairwise comparison experiment and by using the Bradley-Terry model as a starting point some suitable models are presented. A key component of the final model introduced here its ability to differentiate between friendly matches and competitive matches when determining the impact of a match on a teams ranking. Posterior distributions of the rating parameters are obtained, and the rankings and results obtained from each model are compared to FIFA’s rankings and each other
Developing a bank-wide energy conservation program
This report presents the research, methods, analysis, and results of the creation of an energy conservation program for FirstBank of Puerto Rico. Options and ideas from different departments of the bank were incorporated into the final recommendations for a truly bank-wide energy conservation program. With the implementation of this program, FirstBank can save an estimated 301,000 annually, while furthering its image as Puerto Rico's "green" bank through energy conservation