Factorial
Mostrando 1-12 de 2247 artigos, teses e dissertações.
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1. Phonolite associated with organic compound and potassium solubilizing bacteria in tomato cultivation
ABSTRACT The use of rock dust in Brazil has been studied and encouraged to reduce the Brazilian dependence on the foreign market for chemical fertilizers and as an alternative to organic agriculture. The objective of this research was to evaluate the effects of using phonolite rock powder and organic compound, associated with inoculation with the potassium s
Revista Ceres. Publicado em: 2023
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2. Irrigation Management in the Paricá Seedlings Development in Amazon Region
ABSTRACT Paricá is a native tree to the Amazon region recognized for several socioeconomic applications. However, there are few studies on the influence of irrigation regime in the seedling stage. Thus, the objective of the research was to evaluate the effect of water depths and irrigation frequency on the development of Paricá seedlings in the edaphoclima
Revista Ceres. Publicado em: 2023
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3. Study of Catalytic Pyrolysis of Biomass Sorghum (Sorghum bicolor L. Moench) Using Design of Experiments and Surface Response Methodology
This study proposes a screen of variables that have an influence on the modification of the bio-oil chemical composition as a unique critical quality attribute (CQA) throughout the pyrolytic process (zeolite, ZSM-5) by using a 24 full factorial design, followed by optimization through a response surface methodology (RSM) based on central composite design (CC
Journal of the Brazilian Chemical Society. Publicado em: 2023
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4. Escala de creencias docentes sobre las dificultades de aprendizaje de las matemáticas en Educación Primaria
Resumen Los factores influyentes en las Dificultades de Aprendizaje de las Matemáticas (DAM) son un campo de estudio ampliamente estudiado, hoy en día, y entre estos factores destacan las creencias de los maestros/as. Por lo tanto, es necesario contar con instrumentos válidos y fiables para conocer como estas creencias de los maestros pueden influir en la
Bolema: Boletim de Educação Matemática. Publicado em: 2022
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5. PLANEJAMENTO FATORIAL NA SÍNTESE DO OLEATO DE ETILA CATALISADA PELA LIPASE NATIVA DE Aspergillus niger
This work reports the use of the Octave, a free computational software, to optimize the experimental design in the synthesis of ethyl oleate from oleic acid and ethanol catalyzed by a native lipase from Aspergillus niger. The central composite factorial design (CCD) was performed with 2 levels and 3 variables (temperature, mass of native A. niger lipase and
Química Nova. Publicado em: 2022
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6. Performance of wheat varieties grown from seeds with different vigor levels
ABSTRACT The objective of this study was to evaluate the performance of wheat plant grown from seeds with different vigor levels. The experimental design was randomized blocks in a 3 x 3 factorial design (cultivar x vigor level) with four replications. The wheat cultivars were Tbio Toruk, Tbio Mestre and Tbio Iguaçu. The classification of vigor levels was
Revista Ceres. Publicado em: 2022
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7. PERFIL SOCIOECONÔMICO DE ESTUDANTES DE QUÍMICA: O CASO DOS CURSOS DA UNESP - ARARAQUARA
Considering the recent expansion and democratization of access to Higher Education in Brazil, this article aims to characterize and compare the socioeconomic profiles of students who are entering the Bachelor (BAC), teacher education degree (LIC) and Chemical Engineering (ENG) at UNESP - Araraquara. A quantitative, longitudinal study was performed according
Química Nova. Publicado em: 2022
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8. Fantastic Lifestyle Questionnaire applied to undergraduate medical students during the COVID-19 pandemic: a factor analysis
SUMMARY OBJECTIVE: To identify what structure represents life style in medical students, in a public university, with the application of the Fantastic Lifestyle Questionnaire. METHODS: This is a cross-sectional exploratory study. The Fantastic Lifestyle Questionnaire was applied online to medical students. Factorial analysis was realized and factors were e
Revista da Associação Médica Brasileira. Publicado em: 2022
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9. FUZZY MODELING FOR RAPID COOLING OF TABLE GRAPES IN DIFFERENT PLASTIC FILM BAGS
ABSTRACT Rapid cooling is necessary to remove heat from fruit; however, it directly affects the water loss of grapes under certain conditions. Fuzzy logic is an important theory for analyzing results as it simplifies the assimilation of the phenomena through refined adjustments, allowing the prediction of the weight loss of fruits in relation to rapid coolin
Engenharia Agrícola. Publicado em: 2022
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10. Agronomic trait selection and pre-germinative treatments in passion fruit hybrid
ABSTRACT Seed biometry and dormancy overcoming methods should be considered in the passion fruit production chain, in the seedling production stage, because of the different characteristics that condition the seedlings. The objective of this work was to identify and correlate the main biometric characteristics between seeds and seedlings and to select the be
Revista Ceres. Publicado em: 2022
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11. Times and methods of black oat management on corn plantability
ABSTRACT The importance of maintaining straw on the soil surface is a subject widely discussed and proven in the literature. However, the effects of this straw on planting efficiency and quality still lack information. In this sense, both time and method of the black oat management influence the permanence of the straw on the soil and, thus, can interfere in
Revista Ceres. Publicado em: 2022
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12. Combined application of Isaria fumosorosea and beta-cyfluthrin in the control of coffee leaf miner
ABSTRACT The coffee leaf miner is responsible for significant decreases in coffee production. To mitigate the problems caused by this pest control strategies need to be applied. The combined application of chemical and biological insecticides is an alternative that can reduce the population of leaf miner in areas with high infestation and occurrence of resis
Revista Ceres. Publicado em: 2022