Trees in cities--Kentucky--Louisville; Urban forestry--Kentucky--Louisville; Louisville (Ky.)--Environmental conditions
Trees in urban residential neighborhoods provide valuable ecosystem services. Urban trees also face threats from disturbances, such as storms. In 2008, the Urban Forest Effects model was used to estimate abundance and species composition of...
Background: Emerging circulatory support devices that operate in counterpulsation to the native heart require synchronized timing of device ejection and filling on a beat-to-beat basis with the native heart using a patient's ECG. Surface leads are...
Aims. The primary aims of this randomized, controlled, blinded clinical trial were to
compare the hard and soft tissue response following either a connective tissue (CT) or
acellular dermal matrix (ADM) graft placed...
Aims. The primary aims of this randomized, controlled, blinded clinical trial were to compare the hard and soft tissue response following either a connective tissue (CT) or acellular dermal matrix (ADM) graft placed simultaneously with a...
In recent years, a number of computational and statistical problems for identifying SNP-SNP interactions in high dimensional survival data have been studied, and several data mining approaches have been proposed. However, the relative performance...
Aims. The primary aim of this randomized, blinded, controlled clinical trial was to compare the percent root coverage obtained using a coronally positioned tunnel surgery plus an acellular dermal matrix allograft (ADM) with single tooth sling...
The complexity of high-dimensional data creates a number of concerns when trying to analyze it. This data often consists of a response or survival time and potentially thousands of predictors. These predictors can be highly correlated, and the...
Aims. The primary aim of this randomized, blinded, controlled clinical trial was to compare the percent root coverage obtained using acellular dermal matrix allograft and connective tissue graft using the coronally positioned tunnel technique 4...
Aim. To compare two techniques of ridge preservation using a cancellous mineralized particulate xenograft plus a collagen plug to a cortical mineralized particulate allograft plus a PTFE membrane using ridge dimension data to assess the...
Clustered longitudinal data is often collected as repeated measurements on subjects over time arising in the clusters. Examples include longitudinal community intervention studies, or family studies with repeated measures on each member. Meanwhile,...
Item response theory; Goodness-of-fit tests; Monte Carlo method
Item response theory (IRT) is expanding to diverse research settings, without accompanying access to easily implemented model fit methods. One simple model fit approach involves x2/df ratios. However, its utility is not known across several...
Aim. The efficacy of ridge preservation procedures using grafting materials and barrier membranes has been well established in the literature. However, the loss of horizontal width even with the utilization of intrasocket only guided bone...
Aim. To compare two techniques of ridge preservation using a mineralized cancellous particulate allograft to a mineralized cortical particulate allograft plus an acelluar dermal matrix barrier membrane using clinical and histologic data to assess...
Modular hip implants are currently being used in total hip arthroplasty revision procedures because it is common to have little or no bone left in the proximal region of the femur and it is difficult to accurately size implants based off of...
Aim. Differences in the healing of demineralized and mineralized allografts have been reported but their significance has not been evaluated in ridge preservation studies. The primary aims of this study were to compare ridge preservation using a...
Stream riparian zones are ecotones between terrestrial and aquatic environments. Studying these areas in urban environments is important since they lie adjacent to stream water supplies. I conducted a study of riparian woody and groundcover...
This study investigates the placebo effect in randomized controlled trials of low back pain. This effect has not been analyzed over time or in respect to low back pain. A meta-analysis was performed using the Pubmed/Medline database for low back...
Down syndrome--Patients; Williams syndrome--Patients; Social interaction in children; Social perception in children
The present project examined the regulatory function of social referencing in two neurodevelopmental disorders that have been well defined genetically and are characterized by differing patterns of socio-cognitive development: Down syndrome (DS)...
Wounds and injuries--Treatment; Drug delivery systems
Wounds care and management is one of the most basic needs in the medical setting. Burn wounds, trauma wounds, pressure ulcers and bedsores are just some of the many types of wounds that need to be treated quickly and efficiently. Take for instance...
Aims. The primary aim of this study was to compare esthetic outcomes for the Nobel Replace Standard implant vs. the Nobel Perfect Scalloped implant as determined by hard and soft tissue measurements and objective and subjective esthetic indices....
