Sistema inteligente baseado na lógica paraconsistente anotada evidencial Eτ para controle e navegação de robôs móveis autônomos em um ambiente não estruturado.

Apresenta-se nesta tese um Sistema de Navegação e Controle de Robôs Móveis Autônomos baseado na Lógica Paraconsistente Anotada Evidencial Eτ através da utilização das Redes Neurais Artificiais Paraconsistentes. Esse sistema se divide em três módulos: Subsistema de Sensoriamento, Subsistema de Planejamento e Subsistema Mecânico. O funcionamento independente, mas, interligado, desses três módulos, constituem um robô móvel autônomo capaz de encontrar um ponto destino pré-determinado num ambiente não estruturado. Neste trabalho optou-se por dar maior ênfase às implementações dos Subsistemas de Sensoriamento e de Planejamento onde são aplicadas as técnicas de construção dos algoritmos baseados na Lógica Paraconsistente Anotada Evidencial Eτ. Os resultados envolvendo os algoritmos nesses dois Subsistemas mostraram-se muito promissores, capacitando-os a serem empregados com êxito em sistemas de navegação móvel autônoma. Como trabalho futuro, deixa-se a sugestão de construção do Subsistema Mecânico sobre uma plataforma similar com a construída no Robô Emmy II que, em trabalho anterior, utilizou procedimentos de controle baseados na Lógica Paraconsistente Evidencial Eτ

Sistema inteligente paraconsistente para controle de robôs móveis autônomos

This thesis intends to show a controller based on the evidential annotated paraconsistent logic Eτ – Paracontrol. The Paracontrol is a variation of the logic analyzer studied in [Da Silva Filho 99]. This work also shows an autonomous mobile robot,which is named Emmy II, in order to demonstrate the Paracontrol’s new properties. As an innovation, the Paracontrol presents besides the characteristics of the previous controller (manipulation of uncertaints, contradiction and paracompleteness informations), the speed control in the various robot’s actions.Nesta dissertação apresenta-se um controlador lógico baseado na lógica paraconsistente anotada evidencial Et - Paracontrol que constitui uma variação do analisador lógico estudado em [Da Silva Filho 99]. Também se apresenta um robô móvel autônomo, denominado Emmy II, utilizado para demonstrar as novas propriedades do Paracontrol. Como característica inovadora o Paracontrol apresenta, além das características do controlador anterior (manipulação de informações incertas, contraditórias ou paracompletas), controle de velocidade nas diversas ações do robô

Fluorescent Pseudomonas spp. and Bacillus spp. for phosphate solubilization and growth promotion of garlic

Garlic is a nutrient demanding crop which requires a high investment for fertilization and especially for phosphate (P) fertilizers, due to its high retention by the soil. It is possible to use the P solubilizing microbiota, especially rhizobacteria, to make P available and reduce fertilization. Fluorescent Pseudomonas spp. (CBS02) and Bacillus spp. (EB17) isolates were tested at triple superphosphate doses (0 % - without triple superphosphate; 50 % - 472.82 kg ha-1; 100 % - 945.65 kg ha-1). The experimental design was randomized blocks, in a 4 x 3 x 4 factorial scheme, with four treatments (CBS02 isolate, EB17 isolate, isolates mixture and control) and four replications. The size, fresh and dry masses, P content of the fourth leaf and yield were evaluated. The mixture of Pseudomonas spp. (CBS02) and Bacillus spp. (EB17) used in the inoculation of the garlic bulbils increased the size, dry mass and P content of the fourth leaf, as well as the yield of the crop without triple superphosphate, indicating that the P solubilization capacity of the isolates was increased when these were combined. It was possible to observe an increment in all the evaluated variables, indicating that the isolates P solubilization capacity was enhanced when they were combined

Biodiversidade, população e economia: uma região de mata atlântica [Biodiversity, Population, and Economy: a region of atlantic forest]

Minas Gerais; Rio Doce; mata atlântica; atlantic forest; sustainable development; conservation; regional development; environment

Biodiversidade, população e economia: uma região de mata atlântica [Biodiversity, Population, and Economy: a region of atlantic forest]

Minas Gerais; Rio Doce; mata atlântica; atlantic forest; sustainable development; conservation; regional development; environment

Impact of COVID-19 on cardiovascular testing in the United States versus the rest of the world

Objectives: This study sought to quantify and compare the decline in volumes of cardiovascular procedures between the United States and non-US institutions during the early phase of the coronavirus disease-2019 (COVID-19) pandemic. Background: The COVID-19 pandemic has disrupted the care of many non-COVID-19 illnesses. Reductions in diagnostic cardiovascular testing around the world have led to concerns over the implications of reduced testing for cardiovascular disease (CVD) morbidity and mortality. Methods: Data were submitted to the INCAPS-COVID (International Atomic Energy Agency Non-Invasive Cardiology Protocols Study of COVID-19), a multinational registry comprising 909 institutions in 108 countries (including 155 facilities in 40 U.S. states), assessing the impact of the COVID-19 pandemic on volumes of diagnostic cardiovascular procedures. Data were obtained for April 2020 and compared with volumes of baseline procedures from March 2019. We compared laboratory characteristics, practices, and procedure volumes between U.S. and non-U.S. facilities and between U.S. geographic regions and identified factors associated with volume reduction in the United States. Results: Reductions in the volumes of procedures in the United States were similar to those in non-U.S. facilities (68% vs. 63%, respectively; p = 0.237), although U.S. facilities reported greater reductions in invasive coronary angiography (69% vs. 53%, respectively; p < 0.001). Significantly more U.S. facilities reported increased use of telehealth and patient screening measures than non-U.S. facilities, such as temperature checks, symptom screenings, and COVID-19 testing. Reductions in volumes of procedures differed between U.S. regions, with larger declines observed in the Northeast (76%) and Midwest (74%) than in the South (62%) and West (44%). Prevalence of COVID-19, staff redeployments, outpatient centers, and urban centers were associated with greater reductions in volume in U.S. facilities in a multivariable analysis. Conclusions: We observed marked reductions in U.S. cardiovascular testing in the early phase of the pandemic and significant variability between U.S. regions. The association between reductions of volumes and COVID-19 prevalence in the United States highlighted the need for proactive efforts to maintain access to cardiovascular testing in areas most affected by outbreaks of COVID-19 infection