Yb3
Mostrando 1-12 de 162 artigos, teses e dissertações.
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1. Qual tratamento para tendinopatias calcárea do ombro?
O tratamento de escolha da tendinite calcárea (TC) do ombro é o conservador com anti-inflamatórios não esteroides (AINEs) e fisioterapia. Em casos que não responde aos AINES e fisioterapia, injeções subacromiais, lavagem bursal e terapia extracorpórea por ondas de choque (ESWT) tem sido utilizados. Fisioterapia, incluindo mobilização autoajuda e
Núcleo de Telessaúde Santa Catarina. Publicado em: 12/06/2023
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2. Green Synthesis of Upconverting NaYF4 and NaGdF4 Materials and Energy Levels Determination
An alternative green route using a domestic microwave oven to synthesize NaGdF4:Yb,Tm and NaYF4:Yb,Er was successfully developed. Decreasing dopants concentration increased the β-NaREF4/α-NaREF4 ratio in NaGdF4. The scanning electron microscopy (SEM) images of NaGdF4 showed particles ranging from 500 nm to 1 μm with formation of aggregates up to 100 μm,
J. Braz. Chem. Soc.. Publicado em: 2021-08
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3. Surgical ‘Safari’ vs. Educational Program: Experience with International Cardiac Surgery Missions in Nigeria - A Rejoinder
Abstract Introduction: Over the past few years, we have seen some signs of change in mental health among cardiovascular surgeons. Suicide cases, troubled professional relationships, separations, and treatment of depression and anxiety are common occurrences in this group of surgeons. With this in mind, we decided to perform an analysis of the mental health
Braz. J. Cardiovasc. Surg.. Publicado em: 2021-06
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4. Er3+/Yb3+-Doped GdVO4 Obtained by the Non-Hydrolytic Sol-Gel Route and Potential Application as Up-Conversion Thermometer
The properties of lanthanides allow them to be used as contrast agents for magnetic resonance imaging, thereby helping to differentiate between tissues, organs, and pathologies more efficiently. Lanthanides contain thermosensitive energy levels that aid identification of cancer and healthy cells. This work investigates the GdVO4 matrix obtained by the non-hy
J. Braz. Chem. Soc.. Publicado em: 2021-02
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5. Impact of Continuing Education on the Quality of Blood Pressure Measurement
The properties of lanthanides allow them to be used as contrast agents for magnetic resonance imaging, thereby helping to differentiate between tissues, organs, and pathologies more efficiently. Lanthanides contain thermosensitive energy levels that aid identification of cancer and healthy cells. This work investigates the GdVO4 matrix obtained by the non-hy
Int. J. Cardiovasc. Sci.. Publicado em: 2021-02
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6. JUDD-OFELT ANALYSIS OF Tb3+ AND UPCONVERSION STUDY IN Yb3+-Tb3+ CO-DOPED CALIBO GLASSES
We report on the study of the spectroscopic properties in Ytterbium-Terbium (Yb3+-Tb3+) co-doped calcium lithium borate (CaLiBO) glasses, with the study’s focus being on the upconversion process. Intensity parameters Ωλ for CaLiBO:Tb3+ are determined by the Judd-Ofelt method to be Ω2 = 15.5 × 10-20 cm2, Ω4 = 1.90 × 10-20 cm2 and Ω6 = 3.69 × 10-20 c
Quím. Nova. Publicado em: 2020-02
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7. Effects of Heat Treatment and Yb 3+ Concentration on the Downconversion Emission of Er 3+ /Yb 3+ Co-Doped Transparent Silicate Glass-Ceramics
The SiO2-Al2O3-BaF2-TiO2-CaF2 transparent silicate glass-ceramics containing BaF2 nanocrystals were successfully prepared by heat treatment process through conventional melting method. Effects of heat treatment processes and Yb3+ concentration on the downconversion (DC) emission of the co-doped Er3+/Yb3+ transparent silicate glass-ceramics were investigated.
Mat. Res.. Publicado em: 28/10/2019
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8. Characterization of the Ge/Bi2O3 Interfaces
In this article, the properties of the Ge/Bi2O3 interfaces as microwave cavities are reported and discussed. The interface is composed of monoclinic Bi2O3 films grown onto polycrystalline cubic Ge substrate. It is observed that consistent with the theoretical design of the energy band diagram, the experimental current-voltage characteristics of the Yb/Ge/Bi2
Mat. Res.. Publicado em: 04/04/2019
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9. Geochemistry and Spatial Variability of Rare Earth Elements in Soils under Different Geological and Climate Patterns of the Brazilian Northeast
ABSTRACT Growth in the agricultural and industrial sectors has increased the demand for rare earth elements (REEs) in the production of technological devices and fertilizers. Thus, the accumulation of these elements in the soil has become an environmental concern. Here, we aim to determine the natural contents of REEs in soils derived from different parent m
Rev. Bras. Ciênc. Solo. Publicado em: 02/07/2018
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10. ÓXIDO DE ÍTRIO E ALUMÍNIO DOPADO COM Yb3+ E Er3+ INCORPORADO EM MEMBRANA DE POLIAMIDA
Lanthanide ions have special light emission, which can occur through descending and ascending energy conversion. Ascending energy conversion is especially interesting for bioapplications because excitation in the infrared region does not excite biomolecules and therefore does not interfere in detection, not to mention that it penetrates deeper in the skin. H
Quím. Nova. Publicado em: 2018-05
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11. Synthesis and anti-myocarditis activity in a multifunctional lanthanide microporous metal-organic framework with 1D helical chain building units
A new microporous lanthanide metal-organic framework, {[Yb(BTB)(H2O) (DEF)2}n (1, DEF=N,N-Diethylformamide), with 1D nano-sized channels has been constructed by bridging helical chain secondary building units with 1,3,5-benzenetrisbenzoic acid (H3BTB) ligand. Structural characterization suggests that this complex crystallizes in the hexagonal space group P61
Braz J Med Biol Res. Publicado em: 11/01/2018
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12. Degradação de resíduo sólido de biomassa de levedura da indústria de etanol empregando processos Fenton e UV-Fenton assistidos por análise multivariada
Resumo Resíduos agro-industriais orgânicos têm sido utilizados com sucesso como biossorventes e podem impulsionar a economia promovendo novos usos para os mesmos. Contudo, o destino do resíduo sólido gerado pelo biossorvente após a sorção de contaminantes tem sido uma limitação à aplicação em larga escala de tais materiais como alternativa ao tr
Rev. Ambient. Água. Publicado em: 2017-12