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Geoscience Frontiers 2022年第1期13卷 498-505页

作者： kátia Martinello James C.Hower Guilherme L.Dotto Claudete G.Ramos Carlos E.Schnorr Diana Pinto Instituto Inanís Rua Felizardo FurtadoPorto AlegreBrazil University of kentucky Department of Earth&Environmental SciencesLexingtonKY 40506USA University of kentucky Center for Applied Energy Research2540 Research Park DriveLexingtonKY 40511USA Chemical Engineering Department Federal University of Santa Maria97105-900 Santa MariaBrazil Department of Civil and Environmental Universidad de la CostaCUCCalle 58#55–66BarranquillaAtlánticoColombia

Because incomplete confirmation is available concerning the influential role of atmosphere contamination on conjunctivitis,myopia,asthma,and allergic rhinitis in Brazil,the focus of the present work is to explore the possible relations among atmosphere contamination and eye *** that a case study on eye diseases,by way of questionnaires supplemented by the investigation of nanoparticles(NPs)on eyeglasses,the study examines the mechanisms in which NPs and ultra-fine particles are deposited on the glasses of children up to 10 years of age in urban and rural *** important connection between atmosphere contaminants and individual protection equipment justifies improving indoor school properties in order could protect children’s eyes,particularly in high-pollution/high-particulate areas.

关键词： Indoor air pollution Nanoparticles Eyes health Allergic reaction Schools

Investigation of possible relationship between atopic dermatitis and salivary biomarkers,stress,and sleep disorders

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World Journal of Clinical Cases 2023年第17期11卷 3958-3966页

作者： Juliany Estefan Dennis de Carvalho Ferreira Fernanda Sampaio Cavalcante kátia Regina Netto dos Santos Marcia Ribeiro Dermatologia Pediátrica Universidade Federal do Rio de JaneiroRio de Janeiro 21941630Brazil Faculdade de Enfermagem Departamento de Fundamentos de EnfermagemUniversidade do Estado do Rio de JaneiroRio de Janeiro 20551030Brazil Departamento de Clínica Médica Instituto de Ciências MédicasUniversidade Federal do Rio de JaneiroCampus MacaéRio de Janeiro 27930-560Brazil Departamento de Microbiologia Médica Instituto de Microbiologia Paulo de GóesUniversidade Federal do Rio de JaneiroRio de Janeiro 21941630Brazil Genética médica Instituto de Puericultura e Pediatria Martagão Gesteira/Universidade Federal do Rio de JaneiroRio de Janeiro 21941630Brazil

Atopic dermatitis(AD)is a chronic,relapsing,multifactorial inflammatory disease with genetic,environmental,and immunological *** quality of life and sleep of patients and their families are affected by AD,which triggers stress,described as one of the factors that worsens *** biomarkers such as cortisol,alpha-amylase,chromogranin A,and melatonin have been associated with stress and sleep ***,the evaluation of stress and sleep disorders using salivary biomarkers in AD patients is *** review aims to describe the possible relationship between atopic dermatitis and stress,sleep disorders,and salivary biomarkers,seeking to contribute to better understanding and clinical management of *** descriptive study is characterized as a narrative literature review.A literature search was conducted of studies published in English and Portuguese between January 2012 and October 2022 that are available in electronic media from various databases,such as Scientific Electronic Library Online,Latin American and Caribbean Literature on Health Sciences,and *** is associated with different degrees of impact on the lives of individuals who present with the *** stress may induce changes in saliva composition and worsen AD;at the same time,the severity of the disease may be associated with emotional *** studies are needed to assess and correlate AD severity,stress,and sleep disturbances with salivary biomarkers in order to better understand this association.

关键词： Atopic dermatitis Sleep Psychological stress Chromogranin A Melatonin Cortisol

Artisanal ceramic factories using wood combustion:A nanoparticles and human health study

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Geoscience Frontiers 2022年第1期13卷 488-497页

作者： kátia Martinello James C.Hower Diana Pinto Carlos E.Schnorr Guilherme L.Dotto Marcos Leandro Silva Oliveira Claudete G.Ramos Instituto Inanís Rua Felizardo FurtadoPorto AlegreBrazil Department of Civil and Environmental Universidad de la CostaCUCCalle 58#55–66BarranquillaAtlánticoColombia University of kentucky Department of Earth&Environmental SciencesLexingtonKY 40506USA University of kentucky Center for Applied Energy Research2540 Research Park DriveLexingtonKY 40511USA Centro de Estudos em Estresse Oxidativo-Departamento de Bioquímica-Instituto de Ciências Básicas da Saúde-Universidade Federal do Rio Grande do Sul(UFRGS) Porto AlegreRSBrazil Chemical Engineering Department Federal University of Santa MariaUFSMRoraima Avenue1000Santa MariaRS97105-900Brazil Departamento de Ingeniería Civil y Arquitectura Universidad de LimaAvenida Javier Prado Este 4600–Santiago de Surco 1503Peru

The ceramics industry,resulting from developments of modern compounds,is a segment of great influence in worldwide *** ceramic factories based on wood combustion have significant risks for the creation and discharge of atmosphere nanoparticles(NPs)and ultra-fine particles(UFPs).At present,there is insufficient recognition on the influence of engineered-NPs on the atmosphere and *** improvements are indispensable to diminish contact with *** present study demonstrates the main NPs and UFPS present in an area of intense artisanal wood-combustion ceramic *** matter was sampled for morphological,chemical,and geochemical studies by sophisticated electron microbeam microscopy,X-Ray Diffraction,and Raman *** NPs configuration(10 nm)were produced around the studied artisanal ceramic *** study presents an indication of the recent information on population and work-related contact to NPs in the artisanal ceramic factories and their influence on health.

关键词： Ceramic manufacturing Nanoparticles Advanced characterization Multiple impacts

Proposals of SPT-CPT and DPL-CPT correlations for sandy soils in Brazil

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Journal of Rock Mechanics and Geotechnical Engineering 2017年第6期9卷 1152-1158页

作者： Mirella Dalvi dos Santos kátia Vanessa Bicalho Universidade Federal do Espírito Santo VitóriaBrazil

Field tests in geotechnical engineering are fundamental for identification of the underground *** standard penetration test(SPT) is the most commonly used geotechnical approach. There has been an increase both in the use and application of the in situ tests: cone penetration test(CPT) and dynamic probing(DP). Several empirical SPT-CPT and dynamic probing light(DPL)-CPT correlations for sandy soils have been discussed in the literature. New SPT-CPT and DPL-CPT correlations for the sandy soils of the city of Vitoria, in the southeast of Brazil, are suggested in this paper. Statistical analyses to evaluate the quality of the data used are performed, and the suggested correlations are validated with several previous published datasets. The paper also provides some insights into SPT-CPT correlations and soil characteristics(i.e. the mean particle size and the fines fraction of the soil).

关键词： Standard penetration test(SPT) Cone penetration test(CPT) Dynamic probing light(DPL) Correlations Sands Statistical evaluations

Dissemination of Antibiotic Resistance Genes Among Patients with Diarrhea — Freetown, Sierra Leone, 2018

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China CDC weekly 2022年第49期4卷 1093-1096页

作者： Xia Chen Enmin Zhang Michael k Abdulai Alie Brima tia Esther Debora Ngegba Jianhai Yin Songtao Xu Lili Wang Xiaoping Dong Doris Harding Biao kan State key Laboratory of Infectious Disease Prevention and Control National Institute for Communicable Disease Control and PreventionChinese Center for Disease Control and PreventionBeijing MunicipalityChina Sierra Leone-China Friendship Biological Safety Laboratory Chinese Center for Disease Control and PreventionFreetownSierra Leone and Beijing MunicipalityChina National Institute of Parasitic Diseases Chinese Center for Disease Control and PreventionChinese Center for Tropical Diseases ResearchShanghai MunicipalityChina National Institute for Viral Disease Control and Prevention Chinese Center for Disease Control and PreventionBeijing MunicipalityChina Center for Global Public Health Chinese Center for Disease Control and PreventionBeijing MunicipalityChina Ministry of Health and Sanitation FreetownSierra Leone.

What is already known about this topic?Antibiotic resistance(AR)is a serious public health threat ***,the AR and antibiotic resistance genes(ARGs)data from West Africa,especially from Sierra Leone,are *** is added by this report?The study revealed ARGs’common dissemination,and multiplex antibiotic resistance genes in one *** blaNDM and blaOXA-48-like were first discovered in Sierra *** are the implications for public health practice?Basic information is provided for AR research and surveillance and highlights that effective AR surveillance among diarrhea patients is necessary for Sierra Leone and West Africa.

关键词： Antibiotic diarrhea Patients

Settlement predictions of footings on sands using probabilisticanalysis

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Journal of Rock Mechanics and Geotechnical Engineering 2016年第2期8卷 198-203页

作者： felipe carvalho bungenstab kátia vanessa bicalho federal university of espirito santo VitóriaBrazil

The design of footings on sands is often controlled by settlement rather than bearing ***,settlement predictions are essential in the design of shallow ***,predicted settlements of footings are highly dependent on the chosen elastic modulus and the used *** paper presents the use of probabilistic analysis to evaluate the variability of predicted settlements of footings on sands,focusing on the load curve(predicted settlements)*** methodologies,the first-and second-order second-moment(FOSM and SOSM),and Monte Carlo simulation(MCS),for calculating the mean and variance of the estimated settlements through Schmertmann(1970)’s equation,are presented and *** soil beneath the footing is treated as an uncorrelated layered material,so the total settlement and variance are found by adding up the increments of the *** deformability modulus(ESi)is considered as the only independent random *** an example of application,a hypothetical case of a typical subsoil in the state of Espirito Santo,southeast of Brazil,is *** results indicate that there is a significant similarity between the SOSM and MCS methods,while the FOSM method underestimates the results due to the non-consideration of the high-order terms in Taylor’s *** contribution of the knowledge of the uncertainties in settlement prediction can provide a safer design.

关键词： Footings Settlements Probabilities Deformability modulus

A Review of the Characteristics and Challenges of Electricity Distribution in Ghana: Case Study of the Northern Electricity Distribution Company

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Energy and Power Engineering 2022年第11期14卷 615-634页

作者： Nutifafa k. Fiasorgbor Robert Aziz tia Abdulai Mina Antwi-Yeboah ECOWAS Regional Electricity Regulatory Authority (ERERA) Accra Ghana Public Utilities Regulatory Commission (PURC) Ghana Accra Ghana

This paper presents a review of the characteristics and challenges of electricity distribution in Ghana with an emphasis on the Northern Electricity Distribution Company (NEDCo) in the northern half of Ghana. NEDCo is used as a case study due to the peculiarity of its geographical area of operation and customer characteristics which better highlights the challenges of electricity distribution in Ghana. NEDCo’s electricity distribution operations cover approximately 64% of the total landmass of Ghana and contain the most deprived communities and consumers, who are extensively dispersed. In addition to the scattered settlements, NEDCo has a predominantly lifeline customer base that pay tariffs below the average cost of service. These peculiarities, together with regulatory complexities, have contributed to many challenges, such as high system losses, high cost of service and poor network reliability, in the electricity distribution sector in Ghana.

关键词： System Losses Electricity Tariffs Regulatory Regime Metering and Billing

Use of digital image analysis combined with fractal theory to determine particle morphology and surface texture of quartz sands

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Journal of Rock Mechanics and Geotechnical Engineering 2017年第6期9卷 1131-1139页

作者： Georgia S.Araujo kátia V.Bicalho Fernando A.Tristao Federal Institute of Education Science and Technology of the State of Espírito SantoBrazil Department of Civil Engineering Federal University of Espírito SantoBrazil

The particle morphology and surface texture play a major role in influencing mechanical and hydraulic behaviors of sandy soils. This paper presents the use of digital image analysis combined with fractal theory as a tool to quantify the particle morphology and surface texture of two types of quartz sands widely used in the region of Vitória, Espírito Santo, southeast of Brazil. The two investigated sands are sampled from different locations. The purpose of this paper is to present a simple, straightforward,reliable and reproducible methodology that can identify representative sandy soil texture *** test results of the soil samples of the two sands separated by sieving into six size fractions are presented and discussed. The main advantages of the adopted methodology are its simplicity, reliability of the results, and relatively low cost. The results show that sands from the coastal spit(BS) have a greater degree of roundness and a smoother surface texture than river sands(RS). The values obtained in the test are statistically analyzed, and again it is confirmed that the BS sand has a slightly greater degree of sphericity than that of the RS sand. Moreover, the RS sand with rough surface texture has larger specific surface area values than the similar BS sand, which agree with the obtained roughness fractal dimensions. The consistent experimental results demonstrate that image analysis combined with fractal theory is an accurate and efficient method to quantify the differences in particle morphology and surface texture of quartz sands.

关键词： Quartz sands Particle morphology and surface texture Image analysis Fractal theory

等径角挤压对Cu-0.81Cr-0.07Zr合金第二相颗粒分布、硬度和电导率的影响

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Transactions of Nonferrous Metals Society of China 2022年第1期32卷 217-232页

作者： Filipe CALDATTO DALAN Gisele Ferreira de LIMA ANDREANI Dilermando Nagle TRAVESSA Ilshat Albertovich FAIZOV Svetlana FAIZOVA kátia Regina CARDOSO Institute of Science and Technology Federal University of São Paulo330 Talim St.São Josédos Campos12231-280Brazil Institute for Metals Superplasticity Problems RAS 39 S.Khalturin St.Ufa450001Russia Ufa State Aviation Technical University 12 K.Marx St.Ufa450008Russia

研究在室温和300℃下等径角挤压(ECAP)对Cu-0.81Cr-0.07Zr合金中第二相分布的影响,及其对硬度和电导率的影响。显微组织表征表明,经ECAP后,粗大的富Cr颗粒面积分数减小,这是由于塑性变形导致Cr的溶解。在室温下进行4道次ECAP后,由于固... 详细信息

研究在室温和300℃下等径角挤压(ECAP)对Cu-0.81Cr-0.07Zr合金中第二相分布的影响,及其对硬度和电导率的影响。显微组织表征表明,经ECAP后,粗大的富Cr颗粒面积分数减小,这是由于塑性变形导致Cr的溶解。在室温下进行4道次ECAP后,由于固溶体中较高的Cr含量和基体中较高的缺陷密度导致电子散射的增加,合金的电导率下降了12%。仅在ECAP样品中观察到的Cu晶格常数的减小和差示扫描量热分析(DSC)过程中发生的放热反应证实了这些结果。经ECAP后的时效热处理促进额外的硬化效果和导电性的完全恢复,这是由于部分溶解颗粒的再沉淀造成的。在室温下进行4道次ECAP,然后在380℃时效处理1 h的合金具有更高的硬度(191 HV)和电导率(83.5%(IACS))。

关键词：等径角挤压 Cu-Cr-Zr合金第二相颗粒相变

Hazardous elements and amorphous nanoparticles in historical estuary coal mining area

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Geoscience Frontiers 2019年第3期10卷 927-939页

作者： Ana L.Duarte kátia DaBoit Marcos L.S.Oliveira Elba C.Teixeira Ismael L.Schneider Luis F.O.Silva Department of Civil and Environmental Universidad de la Costa Faculdade Meridional IMED FEPAM-Funda■o Estadual de Prote■o Ambiental Henrique Luis Roessler

In Brazil, intense coal exploitation activities have led to environmental deterioration, including soil mortification, water contamination, loss of ecosystem, and atmospheric contamination. In addition,considerable quantities of sulfur-rich residues are left behind in the mining area; these residues pose grave environmental issues as they undergo sulfide oxidation reactions. When sulfur oxides come in contact with water, extreme acid leachate is produced with great proportions of sulfate, and hazardous elements(HEs), which are identified as coal drainage(CMD). CMD is an environmental pollution challenge, particularly in countries with historic or active coal mines. To prevent CMD formation or its migration, the source must be controlled; however, this may not be feasible at many locations. In such scenarios, the mine water should be collected, treated, and discharged. In this study, data from 2005 to2010 was gathered on the geochemistry of 11 CMD discharges from ten different mines. There are several concerns and questions on the formation of nanominerals in mine acid drainage and on their reactions and interfaces. The detailed mineralogical and geochemical data presented in this paper were derived from previous studies on the coal mine areas in Brazil. Oxyhydroxides, sulfates, and nanoparticles in these areas possibly go through structural transformations depending on their size and formation conditions. The geochemistry of Fe-precipitates(such as jarosite, goethite, and hematite) existent in the CMD-generating coal areas and those that could be considered as a potential source of hazardous elements(HEs)(e.g., Cr) were also studied because these precipitates are relatively stable in extremely low pH conditions. To simplify and improve poorly ordered iron, strontium, and aluminum phase characterization, field emission scanning electron microscopy(FE-SEM), high-resolution transmission electron microscopy(HR-TEM), micro-Raman spectroscopy, and X-ray diffraction(XRD) a

关键词： Brazilian coal mining Environmental impacts Minerals