Compatibility of theta13 and the Type I Seesaw Model with A4 Symmetry

We derive formulae for neutrino masses and mixing angles in a type I seesaw framework with an underlying A4 flavor symmetry. In particular, the Majorana neutrino mass matrix includes contributions from an A4 triplet, 1, 1', and 1" flavon fields. Using these formulae, we constrain the general A4 parameter space using the updated global fits on neutrino mixing angles and mass squared differences, including results from the Daya Bay and RENO experiments, and we find predictive relations among the mixing parameters for certain choices of the triplet vacuum expectation value. In the normal hierarchy case, sizable deviation from maximal atmospheric mixing is predicted, and such deviation is strongly correlated with the value of theta13 in the range of ~ (8-10) degrees. On the other hand, such deviation is negligible and insensitive to theta13 in the inverted mass hierarchy case. We also show expectations for the Dirac CP phase resulting from the parameter scan. Future refined measurements of neutrino mixing angles will test these predicted correlations and potentially show evidence for particular triplet vev patterns.Comment: 22 Pages, 3 Figures; v2: version to appear in JHE

Quantifying the Rising “Blue Wave”: The Five Metro Areas that Determined the 2020 U.S. Presidential Election

With the 2020 Presidential Election completed and Joe Biden elected as the United States’ 46th President, strategists of the Democratic Party must now shift their focus toward defending this victory in 2024. We will be assessing the outlook for the Democratic Party going forward by examining changes in voting behavior from 2016 to 2020 in five key counties: Milwaukee County (WI), Maricopa County (AZ), Wayne County (MI), Philadelphia County (PA), and Fulton County (GA). These counties were chosen for two reasons. First, they are all in states President-Elect Biden flipped from President Trump. Secondly, while they are all urban counties, together represent all regions of America. We will be analyzing changes in voter turnout, votes for Republicans or Democrats, margins of victory, and percentage point victory. Along with that, these changes and the overall behavior of voters from these counties will be compared to the voting behavior of their counties’ members of the House of Representatives, through code from Kaggle. This will help us quantify any liberal shift, as pundits for years have talked about the “Blue Wave.

2011-2012 Philharmonia in Concert at Boca West

https://spiral.lynn.edu/conservatory_philharmonia/1063/thumbnail.jp

Bio-nanopatterning of Surfaces

Bio-nanopatterning of surfaces is a very active interdisciplinary field of research at the interface between biotechnology and nanotechnology. Precise patterning of biomolecules on surfaces with nanometre resolution has great potential in many medical and biological applications ranging from molecular diagnostics to advanced platforms for fundamental studies of molecular and cell biology. Bio-nanopatterning technology has advanced at a rapid pace in the last few years with a variety of patterning methodologies being developed for immobilising biomolecules such as DNA, peptides, proteins and viruses at the nanoscale on a broad range of substrates. In this review, the status of research and development are described, with particular focus on the recent advances on the use of nanolithographic techniques as tools for biomolecule immobilisation at the nanoscale. Present strengths and weaknesses, as well future challenges on the different nanolithographic bio-nanopatterning approaches are discussed