Desenvolvimento de sensores eletroquímicos e métodos de extração em fase sólida baseados em sistemas biomiméticos para análise de poluentes ambientais

Pós-graduação em Química - IQ

Planejamento estratégico e operacional na pequena empresa: impactos da formalização no desempenho e diferenças setoriais

This article analyzes the results of three different field research, carried out simultaneously in small technology-based sectors, metal-mechanical industry and hotel in the city of São Carlos - SP, with goals, concepts and methods of similar research. The studies were classified as quantitative and descriptive and conducted through a survey of opinion with the main leader of the company. It were considered valid for analyses, the responses of 57 leaders, it were 33 technology-based sector, 13 of the metal-mechanic industry and 11 in the hospitality sector. The main results: the formalization of planning has not led to better performance, considering the indicator growth in sales in the three sectors studied and that the degree of formalization of the planning of the companies in the technologybased sector was higher, while the hospitality sector had a percentage smaller. The dynamic aspect of technology-based sector and stability in the hotel sector in the region studied, leads to assume that the turbulence of the environment is a predominant factor, contradicting the proposal of some authors, in which the formal planning is inappropriate for small companies that operate in environments that change quickly.

Métodos alternativos no ensino da técnica cirúrgica veterinária

Pós-graduação em Cirurgia Veterinária - FCAV

Modelos Matemáticos e Métodos de Solução para Problemas de Dimensionamento de Lotes

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Utilização de metaheurísticas combinada a diferentes métodos de aglutinação para a otimização de um processo de torneamento com múltiplas respostas

Pós-graduação em Engenharia Mecânica - FEG

Contração de polimerização e expansão higroscópica de resinas compostas: análise pela técnica de video-imagem

To evaluate the volumetric changes due to polymerization and thermocycling on different resin-composites. Methods: Thirteen A2 Universal Dentin shade resin-composites (n = 10) from eight manufacturers were evaluated (4Seasons, Grandio, Venus, Amelogen Plus, P90, Z350, Esthet-X, Amaris, Vita-l-escence, Natural-Look, Charisma, Z250 and Opallis). The polymerization shrinkage percentage (PS) was calculated using an image measurement device (ACUVOL - Bisco Dental). Equal volumes of material, standardized by a semisphere polyurethane matrix (d = 3mm) were used and, after 5 minutes of relaxation, the baseline volume measurements were obtained with 18 J of energy dose from the LED light-curing unit. Measurements were obtained after 5 minutes and PS values calculated. Specimens were stored in a drydark environment for 24 hours and re-measured. Specimens were then thermocycled in distilled water between 5oC and 55oC for 20,000 cycles, subjected to another volume measurement at 5,000 cycle intervals. Specimens were gently dried prior to each measurement. Results: Repeated measurements were made using ANOVA (α = 0.05) showed that all resin-composite volumes were influenced by the number of cycles. Volumes at 5 minutes post-polymerization (12.47 ± 0.08) were significantly lower than those at baseline (12.80 ± 0.09). Volumes at 24 hours (12.43 ± 0.19) were insignificantly lower than those at 5 minutes postpolymerization. With regards to the impact of thermocycling, all specimens showed statistically significant increases in volume after 5,000 cycles (13.04 ± 0.22). Although statistically different from those after 5,000 cycles, there was no statistically significant difference between volumes measured at 10,000 (12.87±0.21), 15,000 (12.92±0.24), and 20,000 (12.84±0.23) cycles. Conclusion: According to the video-imaging analysis, thermocycling caused a significant expansion in resin-composites tested, the volume increase was not able to...

Diferentes métodos de aglutinação para melhoria de processos com múltiplas respostas

Pós-graduação em Engenharia Mecânica - FEG

Métodos geoelétricos aplicados ao diagnóstico ambiental subsuperficial do Cemitério Municipal de Rio Claro, SP

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Odontologia baseada em evidência: etapas e métodos de uma revisão sistemática

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Deteccão de complexos QRS em eletrocardiogramas baseada na decomposição em valores singulares em multirresolução

Pós-graduação em Engenharia Elétrica - FEIS

Dimetilsulfóxidos como ligantes ancilares em complexos de rutênio: catalisadores duais para a combinação da ROMP de norborneno e ATRP de metacrilato de metila

Pós-graduação em Química - IBILCE

Métodos de determinação da densidade do solo em diferentes sistemas de manejo

Soil bulk density is an attribute often used to characterize soil physical structure, being an indicator of soil compaction. The objective of this study was to compare the values ​​of bulk density measured by the paraffin sealed clod and volumetric ring methods in conventional, no-tillage and minimum tillage systems on a Dystroferric Red Nitosol, clayey, in Botucatu, SP. The experiment design was a 3x2 factorial arrangement in randomized block with four replications. The density values ​​obtained by the paraffin sealed clod method were statistically higher than those obtained by the volumetric ring method. There was no difference between the managements when comparing the values ​​of soil density obtained by the paraffin sealed clod method. The soil under conventional management showed lower density when comparing the values ​​of soil density obtained by the volumetric ring. The volumetric ring method was more sensitive to show differences between the management systems than the paraffin sealed clod method.

Métodos de debicagem: desenvolvimento e desempenho produtivo de poedeiras leves e semipesadas

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Efeito do filme de carbono DLC aplicado por plasma como recobrimento em Polietileno de Ultra Densidade e Alto Peso Molecular (UHWPE) e planejamento virtual utilizando a técnica de elementos finitos em cirúrgias de próteses totais da ATM

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)