Historic Designation and Residential Property Values

The State of California enacted the Mills Act in 1972. This act allows local municipalities the option of setting up a historic designation program. The main feature of the program is to allow the owners of historic buildings a reduction in their property taxes in return for an agreement to not alter the exterior façade of the designated building. This paper uses hedonic regression analysis to estimate the impact of the historic designation on the value of single-family residences in the City of San Diego. The results suggest that the designation creates a 16 percent increase in housing value. This is higher than the capitalization of the property tax savings would suggest, implying market value in the historic designation itself. The Mills Act represents an innovative approach to historic structure management and may provide guidance to governments elsewhere in the U.S. as well as internationally when designing historic preservation programs.historic designation; housing values; hedonic model

Jonathan Sandy in a Senior Percussion Recital

This is the senior percussion recital of Jonathan Sandy held on April 22, 2022, in the McBeth Recital Hall in the Mabee Fine Arts Center

Solution analysis in multi-objective optimization

Recent years have seen a growth in the use of evolutionary algorithms to optimize multi-objective building design problems. The aim is to find the Pareto optimal trade-off between conflicting design objectives such as capital cost and operational energy use. Analysis of the resulting set of solutions can be difficult, particularly where there are a large number (possibly hundreds) of design variables to consider. This paper reviews existing approaches to analysis of the Pareto front. It then introduces new approach to the analysis of the trade-off, based on a simple rank- ordering of the objectives, together with the correlation between objectives and problem variables. This allows analysis of the trade-off between the design objectives and variables. The approach is demonstrated for an example building, covering the different relationships that can exist between variables and the objectives

Contemporary theories of orthodontic tooth movement

Coordinated biological responses are required to bring about orthodontic tooth movement. Several theories have been proposed for the mechanisms underlying tooth movement. Techniques have been investigated for reducing pain associated with orthodontics, as well as increasing the rate of tooth movement. Modern molecular and genetic techniques have improved our understanding of biological processes underlying tooth movement, but there is still a great deal of detail that is unknown.CPD/Clinical Relevance: This article provides an update on contemporary theories of orthodontic tooth movement

An Off-Axis Model for GRB 031203

The low luminosity radio emission of the unusually faint GRB 031203 has been argued to support the idea of a class of intrinsically sub-energetic gamma-ray bursts (GRBs), currently comprising two members. While low energy GRBs probably exist, we show that the collective prompt and multiwavelength observations of the afterglow of GRB 031203 do not necessarily require a sub-energetic nature for that event. In fact, the data are more consistent with a typical, powerful GRB seen at an angle of about twice the opening angle of the central jet. The (redshift corrected) peak energy, E_p, of GRB 031203 then becomes ~ 2 MeV, similar to many other GRBs.Comment: 4 pages, 3 figures; ApJL in pres