Spontaneous Order
Mostrando 1-12 de 365 artigos, teses e dissertações.
-
1. Kinetic study and thermodynamic equilibrium modeling of the Co(II) and Mn(II) bioadsorption using the Rhodococcus opacus strain
Abstract Microbial biomass is considered a renewable and environmentally friendly resource. Thus, the research conducted a kinetic study and thermodynamic equilibrium modeling of the cobalt (Co) and manganese (Mn) bioadsorption process using the Rhodococcus opacus (RO) strain as a biosorbent. The inactive biomass subjected to 0.1 M NaOH pretreatment was brou
REM - International Engineering Journal. Publicado em: 2022
-
2. Heterogeneous Fenton-like catalytic degradation of phenazine dye over CeO2 (CP-2) nanoscale powder
Abstract A heterogeneous Fenton-like process was explored for oxidation of phenazine dye using ceria polishing material (CP-2). XRD, SEM, FTIR, UV-vis DRS, and pHPZC techniques were applied to characterize the catalyst features. The performance of the heterogeneous Fenton-like process was investigated under various parameters (reaction time, pH, H2O2 concent
Cerâmica. Publicado em: 2022
-
3. Beyond Atherothrombotic Disease in Acute Coronary Syndrome
Abstract Half of the global population over 20 years of age will be affected by cardiovascular disease. Cardiovascular events in young people is challenging. Spontaneous coronary artery dissection is a non-traumatic and non-iatrogenic separation of the coronary arterial wall and is an uncommon and underdiagnosed cause of acute myocardial infarction predomina
Int. J. Cardiovasc. Sci.. Publicado em: 2021-08
-
4. Synthesis, Characterization, Spectroelectrochemical, Photophysical and HSA-Binding Properties of Novel and Versatile meso-Tetra(4-pyridylvinylphenyl)porphyrins Coordinated to Ruthenium(II)-Polypyridyl Derivatives
The free-base meso-tetra(4-pyridylvinylphenyl)porphyrin (1a) and its zinc(II) complex were synthesized and then functionalized with [Ru(bpy)2Cl]+ units (2a and 2b) via conventional methods and evaluated in terms of photophysical, electrochemical and biological aspects. All porphyrins present moderate singlet oxygen production and fluorescence quantum yield,
J. Braz. Chem. Soc.. Publicado em: 2020-11
-
5. CONTINUUM DE PIADAS: DAS NARRATIVAS PLANEJADAS À ESPONTANEIDADE DO HUMOR
Resumo A proposta deste artigo é demonstrar que existe uma espécie de continuum de casos de piadas. Essa gradação iria de ocorrências mais narrativas e previamente conhecidas por quem as relata (casos das piadas prontas e das anedotas pessoais) a outras, menos previsíveis e próprias da interação verbal (situação das chamadas piadas conversacionais
Ling. (dis)curso. Publicado em: 25/11/2019
-
6. Activated carbon loaded with manganese and iron for glyphosate adsorption: Kinetics, isotherms and thermodynamic studies
Resumo Carvão ativado granular foi impregnado com 1% de ferro e 0,5% de manganês (m/m) para remoção de glifosato em soluções aquosas. O adsorvente foi caracterizado por microscopia eletrônica de varredura, espectroscopia de energia dispersiva, técnicas de adsorção de nitrogênio e análises de potencial zeta. Estudos em batelada foram realizados pa
Rev. Ambient. Água. Publicado em: 25/11/2019
-
7. Preparation and application of Zero Valent Iron immobilized in Activated Carbon for removal of hexavalent Chromium from synthetic effluent
RESUMO Diferentemente dos contaminantes orgânicos, os metais pesados não são biodegradáveis e tendem a se acumular nos organismos vivos e também são reconhecidos por serem tóxicos ou carcinogênicos. A utilização de nanopartículas de ferro zero valente (nFVZ) é relatada como uma técnica alternativa e de elevado potencial para remediação in situ
Rev. Ambient. Água. Publicado em: 03/10/2019
-
8. Adsorção do azul de metileno em serragem de Pinus elliottii (pinus) e Drepanostachyum falcatum (bambu)
RESUMO A cinética, o equilíbrio e os parâmetros termodinâmicos de adsorção foram investigados para a adsorção do corante azul de metileno (AM) por meio dos biossorventes Pinus elliottii (pinus) e Drepanostachyum falcatum (bambu). A cinética de adsorção foi descrita mais precisamente pelo modelo de pseudossegunda ordem, os dados de equilíbrio mono
Eng. Sanit. Ambient.. Publicado em: 15/08/2019
-
9. STUDY OF THE CHROMIUM(VI) REMOVAL FROM AQUEOUS SYSTEMS BY COBALT NANOPARTICLES
The cobalt nanoparticles (NPs-Co) were synthesized and applied in the removal of Cr(VI). The obtained nanomaterials presented magnetic properties and were characterized by the techniques of Transmission Electron Microscopy and X-ray diffraction. The NPs-Co, with a diameter of less than 50 nm, had a composition based on metallic cobalt and cobalt oxide. The N
Quím. Nova. Publicado em: 18/07/2019
-
10. How the perception of quality for beef evaluated by the buyer at the time of purchase: Study in three Brazilian cities of different sizes - Curitiba, Campo Mourão and Palotina
ABSTRACT. In order to evaluate how beef buyers in the State of Paraná, Brazil south value meat quality indicators, and attributes of credibility, 519 interviews were conducted in three cities with different sizes (Big - Curitiba, Medium - Campo Mourão and Small - Palotina). The interviews were applied after the meat was placed in the shopping cart and were
Acta Sci., Anim. Sci.. Publicado em: 04/07/2019
-
11. The natural history of pregnancies with prenatal diagnosis of Trisomy 18 or Trisomy 13: Retrospective cases of a 23-year experience in a Brazilian public hospital
Abstract Trisomy 18 (T18) and trisomy 13 (T13) are polymalformative syndromes associated with a high rate of spontaneous abortions, intrauterine death, and short postnatal life. This study describes the overall outcome in a country where the therapeutic interruption of pregnancy is not available. The medical records of women with prenatal diagnosis of full t
Genet. Mol. Biol.. Publicado em: 03/06/2019
-
12. Exploring Obstetrical Interventions and Stratified Cesarean Section Rates Using the Robson Classification in Tertiary Care Hospitals in the United Arab Emirates
Abstract Objective The objective of the present study was to explore obstetric management in relation to clinical, maternal and child health outcomes by using the Robson classification system. Methods Data was collected from obstetrics registries in tertiary care hospitals in Dubai, United Arab Emirates (UAE). Results The analysis of > 5,400 deliveries
Rev. Bras. Ginecol. Obstet.. Publicado em: 16/05/2019