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validation of Educational Video to Promote Self-Efficacy in Preventing Childhood Diarrhea

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Health 2015年第2期7卷 192-200页

作者： Ludmila alves do Nascimento andressa Peripolli Rodrigues Emanuella Silva Joventino Neiva Francenely Cunha Vieira Patrícia Neyva da Costa Pinheiro Lorena Barbosa Ximenes Department of Nursing Federal University of Ceará Fortaleza Brazil

The aim of this study was to evaluate and to validate an educational video to promote maternal self-efficacy in preventing childhood diarrhea with women assisted in a health unit. validation study, developed with 17 mothers whose children were under five years old, was analyzed on scenes of an educational video according to the validity of appearance (clarity/comprehension) and of content (relevance). The scenes were considered clear and comprehensive with a perceptual above 70% and with an average of 96.9% of agreement. Regarding the relevance, the agreement was maintained between 94% and 100%, however only scenes 03 and 13 presented 76.6% and 70.6% of agreement respectively. Global Content validation Index of the educational video scenes was 0.97 meaning an excellent level of agreement among mothers. The video showed to be a valid and a trustworthy material to promote maternal self-efficacy in preventing childhood diarrhea. Therefore, it is important that the material is disseminated in other health services so that other mothers may have contact with the same, providing greater reliability of the material.

关键词： Diarrhea Infantile Self Efficacy Educational Technology Health Education Nursing

Green Nanotechnology from Plant Extracts: Synthesis and Characterization of Gold Nanoparticles

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Advances in Nanoparticles 2016年第3期5卷 176-185页

作者： Adriana Napoleão Geraldes andressa alves da Silva Jessica Leal Gethzemani Mayeli Estrada-Villegas Nilton Lincopan Kattesh V. Katti Ademar Benévolo Lugão Centro de Química e Meio Ambiente Instituto de Pesquisas Energéticas e Nucleares-Comiss&atildeo Nacional de Energia Nuclear (IPEN-CNEN) S&atilde o Paulo Brazil Centro de Química e Meio Ambiente Instituto de Pesquisas Energéticas e Nucleares-Comiss&atildeo Nacional de Energia Nuclear (IPEN-CNEN) S&atildeo Paulo Brazil Laboratório de Resistência Bacteriana & Alternativas Terapêuticas Instituto de Ciências Biomédicas S&atildeo Paulo Brazil Department of Radiology Physics Bio-Medical Sciences Nuclear Science and Engineering Institute University of Missouri-Columbia Columbia USA

The advantage of using plants in nanoparticles synthesis is that they are easily available, safe to handle and possess a broad variability of metabolites such as antioxidants, nucleotides and vitamins. The aim of this study was to investigate the effects of Green and Zimbro tea and also Green coconut water as a reducing and stabilizer agent in gold nanoparticle synthesis. The gold nanoparticles were characterized by UV-Vis absorption spectroscopy, X-ray diffraction (XRD), Dynamic light scattering (DLS) and Transmission electron microscopy (TEM) analysis. Their physical stability was determined using a UV-Vis spectrophotometer over several days during storage at room temperature. We observed that green chemical process to obtain gold nanoparticles did not require any external chemicals reagent for stabilization of nanoparticulate. Absorption measurements indicated that the plasmon resonance wavelength appears around 530 nm. X-ray diffracto-grams of gold nanoparticles evidenced the presence of Au-rich (fcc) phases. TEM analysis showed a homogeneous dispersion of nanoparticles and some agglomerates. Differences in size and shape of the nanoparticles were observed. Zeta potential of AuNPs synthetized in presence of Green tea was -33 mV indicating stability of the synthesized nanoparticles.

关键词： Green Nanotechnology Gold Nanoparticles Camellia sinensis Juniperus communis Green Coconut Water

On the Impact of Brazil's Largest Recent Oil Spill on Regional Oceans

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Sustainable Marine Structures 2021年第2期3卷 1-14页

作者： Liana de Figueiredo Mendes Patricia Pinheiro Beck Eichler Tatiana Leite Ana Beatriz alves Bennemann Clara de Souza Melo andressa Lima Ferreira Khalil Bow Ltaif Garcia Luzia Liniane do Nascimento Silva Christofer Paul Barker Helenice Vital Moab Praxedes Gomes Priscila F.M.Lopes Department of Ecology Federal University of Rio Grande do Norte(UFRN)University CampusLagoa Nova59072-970 NatalRNBrazil Graduate Program in Geodynamics and Geophysics(PPGG) Laboratory of Marine Geology and Geophysics and Environmental MonitoringFederal University of Rio Grande do Norte 0JFRN)University CamposLagoa Nova59072-970 NatalRNBrazil ***(California USA) Department of Ecology and Zoology Federal University of Santa CatarinaTrindade88040-900FlorianopolisSCBrazil

In 2019,an oil spill in Brazil,of unknown origin,severely impacted coastal environs with the worst environmental disaster ever recorded in any tropical coastal region globally severely damaging South Pirangi Reef area in the state of Rio Grande do Norte(RN).Here we discuss acute and chronic impacts including chemical contamination and economic consequences all over the world and show some evidence of the oil spill in this biodiverse area.Moreover,the lapse between the moment of the disastei;and the action to manage it,was hampered by a political agenda coinciding with local and global tragedies that redirected public attention.Meanwhile almost 2 years have passed still without the offending party identification or culpability;and poor communities may continue to absorb its deleterious impacts for decades without consideration or compensation.This disaster occurred during the Brazilian government's current issues involving extensive environmental mismanagement,resulting in a slow response from an inept system.It is with urgent necessity to spotlight this tragedy in this unique and sensitive reef habitat experiencing the ongoing damaging effects that include socio-economic losses not yet addressed.

关键词： Environmental impacts Socioeconomic losses Government Brazilian coast Oil spill Disaster

Immune response to Helicobacter pylori infection and gastric cancer development

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World Journal of Meta-Analysis 2021年第3期9卷 257-276页

作者： Breno Bittencourt de Brito Fabian Fellipe Bueno Lemos Caroline da Mota Carneiro andressa Santos Viana Nilo Manoel Pereira Vieira Barreto Gabriela alves de Souza Assis Barbara Dicarlo Costa Braga Maria Luísa Cordeiro Santos Filipe Antônio França da Silva Hanna Santos Marques Natália Oliveira e Silva Fabrício Freire de Melo Instituto Multidisciplinar em Saúde Universidade Federal da BahiaVitória da Conquista 45029-094BahiaBrazil Campus Vitória da Conquista Universidade Estadual do Sudoeste da BahiaVitória da Conquista 45031900BahiaBrazil

Gastric adenocarcinoma is a global health concern,and Helicobacter pylori(H.pylori)infection is the main risk factor for its occurrence.Of note,the immune response against the pathogen seems to be a determining factor for gastric oncogenesis,and increasing evidence have emphasized several host and bacterium factors that probably influence in this setting.The development of an inflammatory process against H.pylori involves a wide range of mechanisms such as the activation of pattern recognition receptors and intracellular pathways resulting in the production of proinflammatory cytokines by gastric epithelial cells.This process culminates in the establishment of distinct immune response profiles that result from the cytokine-induced differentiation of T naïve cells into specific T helper cells.Cytokines released from each type of T helper cell orchestrate the immune system and interfere in the development of gastric cancer in idiosyncratic ways.Moreover,variants in genes such as single nucleotide polymorphisms have been associated with variable predispositions for the occurrence of gastric malignancy because they influence both the intensity of gene expression and the affinity of the resultant molecule with its receptor.In addition,various repercussions related to some H.pylori virulence factors seem to substantially influence the host immune response against the infection,and many of them have been associated with gastric tumorigenesis.

关键词： Gastric cancer Helicobacter pylori Immune response Virulence factors Polymorphisms