Complex Systems
Mostrando 1-12 de 2175 artigos, teses e dissertações.
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1. Antioxidant Properties of Croton zehntneri Pax et Hoffm. Essential Oil and Its Inclusion Complex with β-Cyclodextrin Prepared by Spray Drying
Croton zehntneri Pax et Hoffm. is a plant from Northeastern Brazil, whose main component of its essential oil is estragole. Its thermal instability and low aqueous solubility prevent its technological application. This study aimed to prepare and characterize the Croton zehntneri essential oil (CZEO) complexed with β-cyclodextrin (β-CD), and to evaluate ant
Journal of the Brazilian Chemical Society. Publicado em: 2022
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2. AOPs são o futuro da ecotoxicologia?
ARE AOPs THE FUTURE OF ECOTOXICOLOGY? AOPs (Adverse Outcome Pathways) were introduced in the field of ecotoxicology due to the need of replacement of the classic system for assessing adverse results (considering only the mortality of organisms exposed to certain substances or mixtures) to a predictive system based on the measurement of biological events occu
Química Nova. Publicado em: 2022
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3. Physicians’ income in Brazil: a study on information sources
SUMMARY OBJECTIVE: Data on physicians’ income are relevant for well-informed health policies, both due to their strategic role and the volume of resources that their activities represent to health systems. In Brazil, multiple sources of data measure the income of these professionals, each one with singularities that generate a complex and heterogeneous pi
Revista da Associação Médica Brasileira. Publicado em: 2022
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4. Unplanned Hospital Readmission and Visit to the Emergency Room in the First Thirty Days after Head and Neck Surgery: A Prospective, Single-center Study
Abstract Introduction Head and neck surgery remains a complex field; the patients can suffer important functional or life-threating complications after treatment that need unplanned readmissions, increasing the cost related to the treatment. Objective To evaluate the incidence risk factors and causes associated with 30-day unplanned hospital readmission an
International Archives of Otorhinolaryngology. Publicado em: 2022
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5. Soil stabilization with lime for erosion control in solar plants
Abstract The installation of solar parks requires extensive areas and results in soil erosion in many cases. One suitable solution is applying lime to improve soil characteristics, such as mechanical strength, stability, workability, durability, and internal and surface erosion resistance. This soil treatment is of particular importance when dealing with hyd
REM, Int. Eng. J.. Publicado em: 2021-09
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6. POSTHUMANITY IN DELILLO’S ZERO K: THE RISING CONNECTIONS BETWEEN IDENTITY AND TECHNOLOGY
Abstract In Zero K, DeLillo revisits the ever-increasing connection between identity and technology. However, he does so in a unique way, adding (im)mortality issues to an already complex mix. As a result, DeLillo not only explores the intricacies of our present context, but also provides a bleak picture of what could be our posthuman future. This paper exam
Ilha Desterro. Publicado em: 2021-04
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7. Study of the CuII Affinity by Three Chelating Agents of Biological Interest: TPEN, TRIEN and Et2DTC
Copper is an important micronutrient, and it is present in some protein structures, as well as participate in several important biological processes. Due to its importance, some ligands are used and studied like carriers of copper in the biological systems. This work has investigated the affinity of CuII by three ligands of biological interest: N, N, N, N’
J. Braz. Chem. Soc.. Publicado em: 2021-04
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8. Diseases and disorders associated with different stages of crop development and factors that determine the incidence in Hass avocado crops
ABSTRACT Hass avocado production systems in Colombia have increased to become the third largest area planted for fruit production. A number of factors that limit productivity such as diseases have become of high economic importance. The objectives of this study were to identify the causal agents associated with pathologies in Hass avocado crops in different
Rev. Ceres. Publicado em: 2021-02
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9. FAST DETERMINATION OF THE SULFUR SPECIES IN SOLID PHASE SYSTEMS BY A TPO-IR METHOD
Qualitative and quantitative assessment of total sulfur and sulfur species in solid phase is necessarily important for development of effective desulfurization methods, reduction of environmental pollution, and prevention of catalyst poisoned. In this work, TPO-IR (Temperature Programmed Oxidation- Infrared) method was used for rapid determination of sulfur
Quím. Nova. Publicado em: 2021-01
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10. SYNERGISMS BETWEEN METAL AND PHOTOREDOX CATALYSIS: DECONVOLUTING COMPLEX SYSTEMS
This review briefly describes the evolution of organometallic chemistry and photoredox catalysis as independent fields; followed by a more in-depth presentation and discussion of representative examples derived from their synergistic combination, which generally leads to powerful cross-coupling protocols. In this context, the rational deconvolution of these
Quím. Nova. Publicado em: 20/07/2020
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11. Erratum
Abstract Bauxite mining has been carried out around Poços de Caldas, Minas Gerais, since the 1940s. Companies operating in the region pioneered land rehabilitation in Brazil, conducted since the early 1980s. Different procedures of recontouring, runoff drainage, soil preparation and vegetation planting were employed. This research aims to evaluate current e
REM, Int. Eng. J.. Publicado em: 2020-06
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12. Evaluation of environmental rehabilitation practices in bauxite mining at the plateau of Poços de Caldas
Abstract Bauxite mining has been carried out around Poços de Caldas, Minas Gerais, since the 1940s. Companies operating in the region pioneered land rehabilitation in Brazil, conducted since the early 1980s. Different procedures of recontouring, runoff drainage, soil preparation and vegetation planting were employed. This research aims to evaluate current e
REM, Int. Eng. J.. Publicado em: 2020-06