Reutilização de solução extratora na determinação de fibra em detergente neutro e fibra em detergente ácido.

2006

Gerenciamento e tratamento de resíduos químicos dos laboratórios da Embrapa Pecuária Sudeste.

2006

Development of Safety Performance Functions for SafetyAnalyst Applications in Florida

In 2010, the American Association of State Highway and Transportation Officials (AASHTO) released a safety analysis software system known as SafetyAnalyst. SafetyAnalyst implements the empirical Bayes (EB) method, which requires the use of Safety Performance Functions (SPFs). The system is equipped with a set of national default SPFs, and the software calibrates the default SPFs to represent the agency’s safety performance. However, it is recommended that agencies generate agency-specific SPFs whenever possible. Many investigators support the view that the agency-specific SPFs represent the agency data better than the national default SPFs calibrated to agency data. Furthermore, it is believed that the crash trends in Florida are different from the states whose data were used to develop the national default SPFs. In this dissertation, Florida-specific SPFs were developed using the 2008 Roadway Characteristics Inventory (RCI) data and crash and traffic data from 2007-2010 for both total and fatal and injury (FI) crashes. The data were randomly divided into two sets, one for calibration (70% of the data) and another for validation (30% of the data). The negative binomial (NB) model was used to develop the Florida-specific SPFs for each of the subtypes of roadway segments, intersections and ramps, using the calibration data. Statistical goodness-of-fit tests were performed on the calibrated models, which were then validated using the validation data set. The results were compared in order to assess the transferability of the Florida-specific SPF models. The default SafetyAnalyst SPFs were calibrated to Florida data by adjusting the national default SPFs with local calibration factors. The performance of the Florida-specific SPFs and SafetyAnalyst default SPFs calibrated to Florida data were then compared using a number of methods, including visual plots and statistical goodness-of-fit tests. The plots of SPFs against the observed crash data were used to compare the prediction performance of the two models. Three goodness-of-fit tests, represented by the mean absolute deviance (MAD), the mean square prediction error (MSPE), and Freeman-Tukey R2 (R2FT), were also used for comparison in order to identify the better-fitting model. The results showed that Florida-specific SPFs yielded better prediction performance than the national default SPFs calibrated to Florida data. The performance of Florida-specific SPFs was further compared with that of the full SPFs, which include both traffic and geometric variables, in two major applications of SPFs, i.e., crash prediction and identification of high crash locations. The results showed that both SPF models yielded very similar performance in both applications. These empirical results support the use of the flow-only SPF models adopted in SafetyAnalyst, which require much less effort to develop compared to full SPFs.

The role of combinations between fasting intervals and lairage times on pigs welfare, stomach content and carcass and meat quality.

2016

The evaluation of bone composition and carcass quality traits on back fracture in pigs stunned using electrical system.

2016

Effects of high airline pressures on stunning cattle with pneumatically powered captive bolt guns.

2016

Efficiency of low versus high airline pressure on stunning cattle with penetrating captive bolt guns.

2016

Non-hierarchical cluster analysis for body weight, age at first egg, egg production and egg weight in a laying hen strain.

2016

Linkage disequilibrium and effective population size in a paternal broiler line.

2016

Genome-wide association study of periweaning failure-to-thrive syndrome (PFTS) in swine suggests genes involved with depression.

2016

Whole genome sequencing on the identification of pathogens involved with high mortality in piglets.

2016

Senecavirus A outbreak affecting piglets and sows in southern Brazil.

2016

Apparent metabolizable energy of microalgae (Spirulina sp.) for broilers under different methodologies.

2016

Lise celular mecânico por irradiação ultrassônica e cultivo de microalgas.

2016

Redução de ganho de peso corporal em camundongos com dieta suplementada com microalgas.

2016