A5060805218- Nonlinear Partial Differential Equations
- Advanced Mathematical Modeling in Engineering
- Nonlinear Differential Equations Analysis
- Advanced Mathematical Physics Problems
- Spectroscopy and Chemometric Analyses
- Numerical methods in inverse problems
- Differential Equations and Boundary Problems
- Spectroscopy Techniques in Biomedical and Chemical Research
- Coconut Research and Applications
- Peanut Plant Research Studies
- Stability and Controllability of Differential Equations
- Smart Agriculture and AI
- Growth and nutrition in plants
- Research in Cotton Cultivation
- Plant and Fungal Interactions Research
- Agricultural pest management studies
- Analytical Chemistry and Sensors
- Advanced Harmonic Analysis Research
- Differential Equations and Numerical Methods
- Plant Virus Research Studies
- Antibiotics Pharmacokinetics and Efficacy
- Spectral Theory in Mathematical Physics
- Seed Germination and Physiology
- Thermochemical Biomass Conversion Processes
- Electrochemical Analysis and Applications
Brazilian Agricultural Research Corporation
2015-2024
Universidade Federal da Paraíba
2015-2024
Universidade Federal de Pernambuco
2021
Universidade Federal de Campina Grande
2015-2016
Universidade Federal do Pará
2016
Universidade Estadual da Paraíba
2005
Abstract We deal with the nonlinear Schrödinger equation -Δu + V(x)u = f(u) in ℝ N , where V is a (possible) sign changing potential satisfying mild assumptions and nonlinearity f ∈ C 1 (ℝ, ℝ) subcritical superlinear function. By combining variational techniques concentration-compactness principle we obtain positive ground state solution also nodal solution. The proofs rely localizing infimum of associated functional constrained to Nehari type sets.
To investigate the effects of Agave sisalana (A. sisalana) extract on Aedes aegypti (Ae. aegypti) primary cell culture. Cells Ae. were exposed to different concentrations A. crude (0.18–6.00 mg/mL) for 24 h. Then, cells labeled with propidium iodide and subjected fluorescence microscopy verify viability. In addition, nitric oxide production was measured. Results showed that 6 mg/mL presented a greater percentage death when compared control (73.8% ± 9.6% vs. 34.6% 9.6%). Furthermore, there an...
This paper proposes the use of Near Infrared Hyperspectral Imaging (NIR-HSI) as a new strategy for fast and non-destructive classification cotton seeds with respect to variety.
This article describes the classification of biodiesel samples using NIR spectroscopy and chemometric techniques. A total 108 spectra were taken (being three each four types oil, cottonseed, sunflower, soybean canola), from nine manufacturers. The measurements for in spectral region between 12,500 4000 cm(-1). data preprocessed by selecting a range 5000-4500 cm(-1), then Savitzky-Golay second-order polynomial was used with 21 points to obtain second derivative spectra. Characterization done...
‘BRS 421’ and 423’ are high-oleic runner type peanut cultivars, adapted to the main peanut-producing areas in Brazil partially resistant spotted wilt. has a medium cycle large seed size, while BRS ‘423’ short regular size.
We study the existence and multiplicity of solutions for a class quasilinear elliptic problem in exterior domain with Neumann boundary conditions.
Agricultural use of wastewater is an alternative to increase water availability, especially in semiarid regions. However, it may cause undesirable chemical changes the soil. The aim this study was evaluate influence irrigation and castor bean (Ricinus communis L.) cultivation on attributes a Fluvic Neosol. experimental design randomized block, split-plot scheme, where main plots were represented by treatments cultivation, subplots soil layers, with three replications. T1 - + ; T2 mixture...
We establish a Trudinger–Moser type inequality in weighted Sobolev space. The is applied the study of elliptic equation urn:x-wiley:dummy:mana201200315:equation:mana201200315-math-0001 where , f has exponential critical growth and h belongs to dual an appropriate function prove that problem at least two weak solutions provided small.
O objetivo deste trabalho foi avaliar o teor de óleo e a produção sementes da mamoneira 'BRS Energia', submetida doses adubação nitrogenada irrigação com água diferentes índices salinidade. experimento realizado em lisímetros, condições campo, delineamento blocos ao acaso, três repetições. Os tratamentos consistiram dos salinos 0,4 (controle), 1,4, 2,4, 3,4 4,4 dS m-1, associados 50, 75, 100, 125 150% das N recomendadas para ensaio. A interação entre salinidade não significativa nenhuma...
This work proposes the use of classification transfer based on standardization methods to investigate adulteration in hydrated ethyl alcohol fuel (HEAF) samples analyzed two different NIR spectrometers. For this purpose, direct (DS) and partial (PDS) were applied a sample set (measured devices) order estimate an adjustment function between data obtained from instruments. purposes comparison, models linear discriminant analysis (LDA) with previous selection variables by successive projections...
BRS 425 is a high-oleic runner peanut cultivar related to wild ancestral parents, partially resistant early and late leaf spot spotted wilt. It large-seeded contains 46% oil. adapted the main peanut-producing regions of Brazil.
The objective of this work was to evaluate the genetic diversity in a segregating population F3 castor bean Recôncavo Baiano using Ward-MLM multivariate technique. experiment conducted at Universidade Federal do da Bahia between April 2009 and March 2010. 259 genotypes used were derived from crosses BRS 149 Nordestina, 188 Paraguaçu, EBDA MPA-17, Sipeal 28 Mirante 10 varieties. design randomized complete blocks with four replicates spacing 3x1 m. number days appearance first female flower,...
Development of leaf spots resistant runner peanut cultivars is one the major demands in Brazil. In 2009/10 crop season, 12 pre-breeding progenies (LPM) were selected out 380 plants an interspecific BC1F3 population for resistance and agronomic traits. 2010/11, LPMs evaluated resistance, without fungicide sprays. The recurrent parent (susceptible control) all susceptible; partial segregating selected. Some had yield, pod seed shape similar to control. 12, 5 2011/12 2012/13 seasons,...