Results 21 to 30 of about 5,981 (166)

Um é pouco, dois é bom, três é demais

open access: yesOpiniães, 2015
Contos.
openaire   +2 more sources

COMUNICAR É PRECISO

open access: yesArquivos Catarinenses de Medicina, 2022
Introdução: dispositivos e soluções em telessaúde e telemedicina desempenharam papel fundamental nas estratégias de assistência à saúde alinhadas à redução da transmissão viral no contexto da pandemia de COVID-19. Objetivo: identificar, caracterizar e analisar as iniciativas de telessaúde criadas e utilizadas pelo Sistema Municipal de Saúde do ...
Raphaella Tambosetti Dias   +2 more
openaire   +1 more source

Glycerophosphocholine‐Mediated Dual Regulation for Highly Stable Aqueous Iron‐Ion Batteries

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Iron‐ion batteries (FeIB) offer the advantages of low cost and high capacity, demonstrating potential for large‐scale energy storage. However, severe hydrogen evolution reaction (HER) occurs during cycling, which significantly impacts battery lifespan.
Tian Yang   +6 more
wiley   +1 more source

MRI-T2*检测β-重型地中海贫血心、肝、胰铁沉积的临床价值

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 2020
目的MRI-T2*定量评价β-重型地中海贫血(β-TM)患者心肌、肝脏、胰腺铁沉积程度,探讨心肌铁沉积与肝脏、胰腺铁沉积的关系。方法回顾性分析2014年5月至2016年1月期间在我院行心脏、肝脏、胰腺MRI-T2*检查的109例β-TM患者的临床、实验室和MRI资料,采用Spearman相关性分析探讨心肌T2*值与肝脏、胰腺T2*值之间关系。将心肌、肝脏铁沉积的患者纳入A组(n=32),仅肝脏铁沉积、而心肌铁含量正常的患者纳入B组(n=69),将心肌、胰腺铁沉积的患者纳入C组(n=34),仅胰腺铁沉积 ...
黄静文   +4 more
doaj  

Separation and determination of iron(Ⅱ), cobalt(Ⅱ) and nickel(Ⅱ) by HPLC after cloud point extraction with TAN(TAN浊点萃取-高效液相色谱法测定铁、钴、镍)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2007
讨论了以TAN为衍生试剂,用Triton X-114非离子表面活性剂浊点萃取富集铁(Ⅱ )、钴(Ⅱ )、镍(Ⅱ )的各种条件,并于ODS柱上,用内含4.5 m mol • L-1十六烷基三甲基溴化铵(CTMAB)和0.03 mol • L-1 pH5.5HAc-NaAc缓冲溶液的甲醇/水溶液(体积比为69 : 31)作流动相,检测波长为565 nm,流速为0.8 mL • min-1,发展了浊点萃取-高效液相色谱法测定铁、钴、镍的新方法.在选定条件下,大多数离子不干扰测定,方法灵敏度高,对铁、钴 ...
XIEXia-feng(谢夏丰)   +2 more
doaj   +1 more source

Dual‐Site Electronic Modulation in Mn/Fe‐Doped Ni0.85Se for High‐Efficiency Urea Oxidation at Industrial Current Density

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Rationally designing an electrocatalyst to achieve stable and efficient urea oxidation reaction (UOR) is crucial but still challenging, especially for ampere‐level application. Herein, Mn and Fe dual‐doped Ni0.85Se (Mn/Fe–Ni0.85Se) catalyst is synthesized via a facile and scalable electrodeposition and followed by selenization.
Guanglin Zhu   +6 more
wiley   +1 more source

Metal‐Based Materials for Redox Modulation in Biomedicine

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Metal materials have become increasingly important in modulating biological redox networks for therapeutic and diagnostic purposes, owing to their distinctive electronic properties and adaptable reactivity. This review synthesizes recent developments across various metal‐based materials, including elemental metals, metal oxides, coordination ...
Yan Fan   +7 more
wiley   +1 more source

厌氧氨氧化脱氮强化途径的研究进展

open access: yesGongye shui chuli, 2022
厌氧氨氧化工艺作为一种经济高效的新型生物脱氮技术,近年来受到了极大的关注。然而厌氧氨氧化菌世代周期长、对生存环境敏感、容易受抑制等诸多问题导致厌氧氨氧化工艺启动时间长及运行稳定性差,限制了其在实际废水处理中的应用。有效的厌氧氨氧化强化措施有望解决这一问题。介绍了国内外关于厌氧氨氧化强化途径的研究进展,重点评述了无机碳、铁元素、物理场(如电场、磁场、超声波等)在强化厌氧氨氧化菌生长代谢、加速厌氧氨氧化工艺启动以及提升工艺脱氮效能方面的可行性及潜在机理。分析认为 ...
李天皓   +5 more
doaj  

SE PUBLICAR É PRECISO, AVALIAR TAMBÉM É! [PDF]

open access: yesRevista de Administração de Empresas, 2018
O tema “revisão de artigos” é relevante e faz parte do cotidiano de todo pesquisador. Entretanto, a minha experiência como editor e revisor em periódicos brasileiros e internacionais torna evidente que o comprometimento dos pesquisadores na função de revisores, em geral, é muito menor do que quando estão na posição de autores.
openaire   +2 more sources

Pinus armandii ectomycorrhizas mobilize aluminium‐bound phosphorus via carboxylates along a subtropical altitudinal gradient

open access: yesJournal of Ecology, Volume 114, Issue 8, August 2026.
Ectomycorrhizal roots of Pinus armandii release more carboxylates than non‐mycorrhizal root segments, mobilizing Al‐bound inorganic P. Under the lowest available P conditions, they also secrete more phosphatase, promoting the mineralization of Al‐bound organic P.
Jun Zhou   +7 more
wiley   +1 more source

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