Contribution
Mostrando 13-24 de 8514 artigos, teses e dissertações.
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13. ARTEMISININA E DERIVADOS: DESCOBERTA, ESTRATÉGIAS SINTÉTICAS E OBTENÇÃO INDUSTRIAL
Artemisinin, a natural sesquiterpene isolated from the Artemisia annua L. plant, represents a remarkable achievement in the treatment against malaria. Since its discovery in the 1970’s, researchers readily started synthesizing this complex natural product containing an unusual endoperoxide fragment. Despite various total syntheses reported, only in the las
Química Nova. Publicado em: 2022
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14. REPLY TO “REFLEXIVITY, ROLE CONFLICTS, AND THE MEANING OF ENGLISH SELF PRONOUNS”
Abstract Stern’s Columbia School Theory contribution on English self-pronouns provides a wonderful illustration of the explanatory power of an approach that refuses to be taken in by a priori grammatical categories like reflexivity, which have the unfortunate consequence of giving the analyst the impression that he or she already knows all about the semant
Manuscrito. Publicado em: 2022
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15. The state of Sergipe contribution to GH research: from Souza Leite to Itabaianinha syndrome
ABSTRACT In the late 19th century, José Dantas de Souza Leite, a physician born in Sergipe, published the first detailed clinical description of acromegaly under the guidance of the French neurologist Pierre Marie. In 2014, the Brazilian Society of Endocrinology and Metabolism created the “José Dantas de Souza Leite Award”, which is granted every two y
Archives of Endocrinology and Metabolism. Publicado em: 2022
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16. Contribution to the forecast of horizontal displacements in continuous fight auger piles in granular soil profile
Abstract This article presents a series of propositions for the prediction of horizontal displacements for continuous fight auger piles in granular soil profiles through modifying the parameters Ay and By from the method proposed by Matlock and Reese (1961). Empirical proposals were also presented for calculating the horizontal soil reaction coefficient (nh)
REM - International Engineering Journal. Publicado em: 2022
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17. Pluralismo Jurídico y Teoría Crítica Descolonial como Fundamento para Replantear la Cuestión del Género
Abstract This reflective contribution aims to analyze the question of gender, its subordinate relations and the discriminatory impacts generated by the coloniality of power, opening in a given peripheral space, the opposition represented by intersectionality, using the theoretical contributions represented by legal pluralism and by the processes of decolonia
Revista Direito e Práxis. Publicado em: 2022
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18. Relation between Vitamin B12 Levels and Smell Affection in COVID-19 Patients
Abstract Introduction Olfactory and gustative alterations are frequent in the initial stages of the COVID-19 infection. Vitamin B12 deficiency has been linked to olfactory dysfunction. Objective The present study aimed to assess the relationship between vitamin B12 levels and smell affection in COVID-19 patients. Methods The present study included 201 lab
International Archives of Otorhinolaryngology. Publicado em: 2022
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19. Identifying conceptions of the covalent bond: an analysis from a systematic review
The covalent bond is a classical topic in science education because it is fundamental to a considerable number of other concepts and by its ability to interpret several chemical phenomena. However, the process of learning this concept presents some difficulties discussed here. This article brings together the conceptions related to the covalent bond, identif
Química Nova. Publicado em: 2022
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20. Methodology to Generate a Reluctance Network Applied to Permanent Magnet Synchronous Generators
Abstract This paper presents a methodology for the generation of a static reluctance network, with magnetomotive sources only in the rotor, applied in the analysis and design of surface mounted permanent magnet synchronous generators. In the analysis stage, this network can provide the magnetic flux in several points of the generator, enabling an estimate of
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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21. Radiation Efficiency of an Electrically Small Dual-band UHF Microstrip Patch Antenna Using Wheeler Cap Method
Abstract Determining the radiation efficiency of an antenna is a difficult task that becomes challenging when it is about electrically small antennas. This work investigates the applicability of the Wheeler cap method to measure the radiation efficiency of a UHF dual-band compact microstrip patch antenna. An overview of Wheeler method is presented. An adapta
Journal of Microwaves, Optoelectronics and Electromagnetic Applications. Publicado em: 2022
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22. Are hemoglobin-derived peptides involved in the neuropsychiatric symptoms caused by SARS-CoV-2 infection?
Follow-up of patients affected by COVID-19 has unveiled remarkable findings. Among the several sequelae caused by SARS-CoV-2 viral infection, it is particularly noteworthy that patients are prone to developing depression, anxiety, cognitive disorders, and dementia as part of the post-COVID-19 syndrome. The multisystem aspects of this disease suggest that mul
Brazilian Journal of Psychiatry. Publicado em: 2022
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23. Abuse, disrespect and mistreatment during childbirth care: contribution of the Ribeirão Preto cohorts, Brazil
Resumo O objetivo do estudo foi estimar percepção e ocorrência de situações de abuso, desrespeito e maltrato (ADM) na assistência ao parto de 745 mulheres pertencentes às coortes de nascimentos de Ribeirão Preto. Foram aplicados questionários sigilosos contendo uma pergunta sobre percepção de maltrato na assistência ao parto e outras sobre exposi
Ciência & Saúde Coletiva. Publicado em: 2022
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24. TEST OF THE SCREENING AND PARAMETER OPTIMIZATION OF SWING SEPARATION SIEVE IN FIELD OPERATION
ABSTRACT The need for clarity regarding the sieving characteristics of the potato-soil mixture, as provided by the swing separating sieve of a potato digger, as well as the derived problems of low potato transportation efficiency, a high potato damage rate and low potato unearthing rate, are the main reasons for this study. Dynamic tracking technology is pro
Engenharia Agrícola. Publicado em: 2022