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Journal of Electrical Engineering 2017年第3期5卷 157-162页

作者： Jose Ilton de oliveira Filho Wilk Maia Coelho marcos Eduardo Do Prado Villarroel Zurita Mateus de Melo Araujo and Yago Borges Moreira department of Electrical Engineering Federal University of Piaui Teresina 64049-550 Brazil

Metal-enriched nanoparticles and black carbon:A perspective from the Brazil railway system air pollution

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Geoscience Frontiers 2021年第3期12卷 624-635页

作者： Bianca D.Lima Elba C.Teixeira James C.Hower Matheus S.Civeira Omar Ramírez Cheng-Xue Yang marcos L.S.oliveira Luis F.O.Silva Postgraduate Program in Remote Sensing and Meteorology Geosciences InstituteUniversidade Federal do Rio Grande do SulAv.Bento Gonçalves9500Porto AlegreRS 91501–970Brazil Research department Fundação Estadual de Proteção Ambiental Henrique Luís RoesslerAv.Borges de Medeiros261Porto AlegreRS 90020–021Brazil Center for Applied Energy Research University of Kentucky2540 Research Park DriveLexingtonKY 40511USA Postgraduate Program in Mines Metallurgy and MaterialsUniversidade Federal do Rio Grande do SulAv.Bento Gonçalves9500Porto AlegreRS 91501–970Brazil Faculty of Engineering Environmental EngineeringUniversidad Militar Nueva GranadaKm 2 CajicáZipaquiráColombia Institute of Earth Science China University of Geosciences(Beijing)29 Xueyuan RdHaidian DistrictChina department of Civil and Environmental Universidad de la CostaCUCCalle 58#55-66BarranquillaAtlanticoColombia Universidad de Lima Departamento de Ingeniería civil y Arquitectura.Avenida Javier Prado Este 4600–Santiago de Surco 1503Peru

Having a better understanding of air pollutants in railway systems is crucial to ensure a clean public *** study measured,for the first time in Brazil,nanoparticles(NPs)and black carbon(BC)on two groundlevel platforms and inside trains of the Metropolitan Area of Porto Alegre(MAPA).An intense sampling campaign during thirteen consecutive months was carried out and the chemical composition of NPs was examined by advanced microscopy *** results showed that highest concentrations of the pollutants occur in colder seasons and influenced by variables such as frequency of the trains and passenger ***,internal and external sources of pollution at the stations were *** predominance of NPs enriched with metals that increase oxidative stress like Cd,Fe,Pb,Cr,Zn,Ni,V,Hg,Sn,and Ba both on the platforms and inside trains,including Fe-minerals as hematite and magnetite,represents a critical risk to the health of passengers and employees of the *** interdisciplinary and multi-analytical study aims to provide an improved understanding of reported adverse health effects induced by railway system aerosols.

关键词： Nanoparticles Potential hazardous elements Environmental chemistry Human health Railway environment Indoor air quality

Geo-environmental parametric 3D models of SARS-CoV-2 virus circulation in hospital ventilation systems

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Geoscience Frontiers 2022年第6期13卷 244-256页

作者： Carla Gabriela Carlot Zorzi Alcindo Neckel Laércio Stolfo Maculan Grace Tibério Cardoso Leila Dal Moro Alexandre Almeida del Savio Leopoldo D.Z.Carrasco marcos L.S.oliveira Eliane Thaines Bodah Brian William Bodah Faculdade Meridional IMED304-Passo Fundo-RS 99070-220Brazil Universidad de Lima Avenida Javier Prado Este 4600–Santiago de Surco 1503Peru department of Civil and Environmental.Universidad de la Costa CUCCalle 58#55–66BarranquillaAtlánticoColombia State University of New York Onondaga Community College4585 West Seneca TurnpikeSyracuseNY 13215USA Thaines and Bodah Center for Education and development 840 South Meadowlark LaneOthelloWA 99344USA

The novel coronavirus, SARS-CoV-2, has the potential to cause natural ventilation systems in hospital environments to be rendered inadequate, not only for workers but also for people who transit through these environments even for a limited duration. Studies in of the fields of geosciences and engineering,when combined with appropriate technologies, allow for the possibility of reducing the impacts of the SARS-CoV-2 virus in the environment, including those of hospitals which are critical centers for healthcare. In this work, we build parametric 3D models to assess the possible circulation of the SARS-CoV-2 virus in the natural ventilation system of a hospital built to care infected patients during the COVID-19 pandemic. Building Information Modeling(BIM) was performed, generating 3D models of hospital environments utilizing Revit software for Autodesk CFD 2021. The evaluation considered dimensional analyses of 0°, 45°, 90° and 180°. The analysis of natural ventilation patterns on both internal and external surfaces and the distribution of windows in relation to the displacement dynamics of the SARS-CoV-2 virus through the air were considered. The results showed that in the external area of the hospital, the wind speed reached velocities up to 2.1 m/s when entering the building through open windows. In contact with the furniture, this value decreased to 0.78 m/s. In some internal isolation wards that house patients with COVID-19, areas that should be equipped with negative room pressure, air velocity was null. Our study provides insights into the possibility of SARS-CoV-2 contamination in internal hospital environments as well as external areas surrounding hospitals, both of which encounter high pedestrian traffic in cities worldwide.

关键词： COVID-19 global epidemic Dimensional analysis Wind velocity Hospital environment Contamination

Spacing between Soybean Rows

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American Journal of Plant Sciences 2018年第4期9卷 711-721页

作者： Luiz Claudio Garcia Ivo Frare Thiago Inagaki Pedro Henrique Weirich Neto marcos Martins Maghnom Henrique Melo Leandro Nadolny marcos Kruppa Rogenski Newton Seifert Filho Ezequiel Barbosa de oliveira department of Soil Science and Agricultural Engineering State University of Ponta Grossa Ponta Grossa Brazil

The soybean crop has great economical importance in Brazil and in the world. In order to make the crop production profitable, several factors must be considered. The objective of this study was to evaluate the impact of spacing between soybean crop rows (Glycine max). The experiment was installed in the Mutuca farm (Arapoti—PR, southern Brazil), in the crop seasons of 2012/2013 (four seeding seasons) and 2013/2014 (two seeding seasons), in a completely randomized blocks design. We used four treatments and six replicates. The treatments were the spacing between rows as follow: 0.25, 0.50, 0.75 and 1.00 m. The variables evaluated were: initial and final plant population, plant height, number of internodes, viable internodes, pods per plant, grains per pod, mass of thousand grains and crop productivity. We concluded that the reduction of the spacing between rows significantly increased, in most part of the crop seasons, the number of pods per plants and the crop productivity.

关键词： Productivity Components Glycine max No-Till System

Chemical Composition and Allelopathic Activity of the Essential Oil from Callistemon viminalis(Myrtaceae)Blossoms on Lettuce(Lactuca sativa L.)Seedlings

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American Journal of Plant Sciences 2014年第24期5卷 3551-3557页

作者： Christiane Maria de oliveira Maria das Gracas Cardoso Ana Cristina da Silva Figueiredo Maria Laene Moreira de Carvalho Cintia Alvarenga Santos Fraga de Miranda Luiz roberto Marques Albuquerque David Lee Nelson marcos de Souza Gomes Lucilene Fernandes Silva Juliana de Andrade Santiago Maria Luisa Teixeira Rafaela Magalhaes Brandao department of Chemistry Federal University of LavrasLavrasBrazil Centro de Biotecnologia Vegetal/IBB Departamento de Biologia VegetalFaculdade de Ciencias de LisboaUniversidade de LisboaLisbonPortugal department of Agriculture Federal University of LavrasLavrasBrazil Federal University of Valleys Jequitinhonha and Mucuri DiamantinaBrazil

The extraction of essential oils was performed by using the technique of hydrodistillation modified Clevenger apparatus, identification and quantification of the constituents was achieved by Gas Chromatography coupled to Mass Spectrometry, and Gas Chromatography equipped with a flame ionization detector. Assessment of allelopathic activity was evaluated with the use of the method that assesses the direct contact of essential oils on germination and vigor of lettuce seeds. The major constituents that characterize the essential oil from the flowers of Callistemon viminalis were 1, 8-cineole, α-pinene and limonene at concentrations of 66.9%, 16.0% and 10.0%, respectively. The essential oil presented allelopathic activity at intensities that varied proportionately to the concentration of the essential oil, with a reduction in the percentage of germination and the germination speed index (GSI) of lettuce seeds and in the dry mass and length of shoots and roots of lettuce seedlings.

关键词： Biological Activity Myrtaceae Allelopathy

Dietary xylanase and live yeast supplementation influence intestinal bacterial populations and growth performance of piglets fed a sorghum-based diet

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Animal Nutrition 2020年第4期6卷 457-466页

作者： Gemma González-Ortiz Marco A.Callegari Pete Wilcock Diego Melo-Duran Michael R.Bedford Hilário R.V.oliveira marcos A.A.da Silva Carlos R.Pierozan Caio A.da Silva AB Vista MarlboroughWiltshireSN84ANUnited Kingdom AKEI Animal Research Fartura18870000Brazil Servei de Nutricio i Benestar Animal(SNiBA) Department de Ciencia Animal i dels AlimentsUniversitat Autonoma de Barcelona(UAB)08193Spain Universidade Estadual Norte do Parana Bandeirantes86360000Brazil Universidade Estadual de Londrina Londrina86051990Brazil

This study was to evaluate the effect of xylanase supplementation and the addition of live yeast,Saccharomyces cerevisiae,on growth performance and intestinal microbiota in *** hundred and eighty commercial crossbred 23-d-old piglets(PIC 417)were sorted by initial BW and allocated to 3 treatments:control(CTR)diet,CTR diet supplemented with xylanase at 16,000 birch xylan units/kg(XYL)and XYL diet supplemented with live yeast(2 x 1010 CFU/g)at 1 kg/t(XYL+LY).Each treatment had 10 replicates,with 6 animals each.A sorghum-based diet and water were available ad libitum for 42 d of the *** daily gain(ADG)and average daily feed intake(ADFI)were measured from 0 to 42 d(23-to 65-d-old)and feed conversion ratio(FCR)*** the end of the study,bacterial identification through 16 S rRNA(V3 to V4)sequencing of the ileal and caecal digesta from one piglet per replicate was *** treatment effects were observed on *** offered the live yeast in addition to the xylanase had increased ADG compared with those supplemented with xylanase alone(XYL+LY ***;P=0.655).FCR was improved with XYL and XYL+LY compared with CTR(P=0.018).Clostridiaceae counts in the ileum tended to reduce by 10%with XYL and 14%with XYL+LY compared to CTR(P=0.07).XYL and XYL+LY increased the counts of Lactobacillaceae in the caecum compared with CTR(P<0.0001).Dietary supplementation of live yeast combined with xylanase improved growth performance and microbial balance of piglets during the nursery phase.

关键词： Sorghum Nursery piglet Xylanase Live yeast Growth performance Microbiota

Estimating age of Brazilians using the methods of demirjian and Nicodemo,Moraes and Medici:A comparative analysis

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Forensic Medicine and Anatomy Research 2013年第3期1卷 57-62页

作者： Ricarda Duarte da Silva marcos Andre Duarte da Silva Aline Yumi Uezono Simone Borges Braga dos Santos Queiroz Rogerio Nogueira de oliveira department of Social dentistry University of Sao PauloSao PauloBrazil

This study proposed to evaluate the precision of Nicodemo, Moraes and Médici method and the method proposed by demirjian and compare both methodologies in relation to the efficiency and applicability in the Brazilian population. The sample consisted of 124 panoramic radiographs of subjects in the age group from 7 to 16 years old, 66 patients female and 58 male. For the comparison of the genders in relation to the average percentage difference, the t-Student test was considered. In average the method of Nicodemo, Moraes and Médici presented for the female gender an estimated result 14.7% lower than the real age. For the male gender the estimative obtained was that for each year of variation of the real age the method of Nicodemo estimates a variation of 0.48 years, with a confidence interval of 95% given by (0.43;0.54). For the method of demirjian the result was that for each year of variation of the real age the method of demirjian estimates a variation of 1.00 year, with a confidence interval of 95% given by (0.85;1.15) for the male gender and 0.96 years, with a confidence interval of 95% given by (0.84;1.08) for the female gender. It is concluded that the Method of Nicodemo, Moraes and Médici tends to underestimate the real age and that as the real age increases this underestimate becomes higher. Now, the method of demirjian tends to over- estimate the real age in 8.2 months for the male gender and in 7.1 for the female one in average.

关键词： dentistry Age Estimative Forensic dentistry Forensics

Allelopathy of the Leaf Extract of Eucalyptus Genetic Material on the Physiological Performance of Millet Seeds

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American Journal of Plant Sciences 2018年第1期9卷 34-45页

作者： marcos Vinicius de Sousa Séfora Gil Gomes de Farias Déborah Praciano de Castro Romário Bezerra e Silva Dandara Yasmim Bonfim de oliveira Silva Bruna Anair Souto Dias Alexandre Faria da Silva Graziele Nunes Lopes dos Santos Daniele Cristina Pereira de Matos Caio Varonill de Almada oliveira Universidade Federal do Piauí (UFPI) Bom Jesus Brazil Universidade Estadual do Ceará UECE Fortaleza Brazil Universidade Federal de Vicosa Vicosa Brazil

This study aims to evaluate the possible allelopathic effects of young and mature leaf extract from of two eucalyptus genetic materials on the physiological performance of millet seeds. The experiment was carried out in a completely randomized design, in a 5 × 2 × 2 factorial arrangement [five concentrations of the extract (0, 25%, 50%, 75%, and 100%) × two genetic materials (1 - Eucalyptus grandis × Eucalyptus urophylla and 2 - Eucalyptus grandis × Eucalyptus camaldulensis) × two maturation stages of leaves (young and mature leaves)] with four replicates, each one with 25 seeds. Seeding was performed on the germitest paper substrate distributed in Petri dishes, moistened with the extract according to the treatments, being allocated in biochemical oxygen demand (B.O.D) adjusted at 25°C and 12 h photoperiod. Percentage, speed index, mean germination time, aerial part and primary root length, and dry matter weight of aerial part and root system of seedlings were evaluated. The leaf extracts of the two eucalyptus clones had all the analyzed variables changed with effect more evident on young leaf extract of the genetic material 1. It can be concluded that the tested genetic materials have a detrimental effect on the physiological performance of millet seeds.

关键词： Allelopathic Germination Pennisetum glaucum Seedlings Germination Speed

Impact of an Exercise Training Program in a Patient with Relapsing Polychondritis: A Case Report

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Open Journal of Rheumatology and Autoimmune Diseases 2018年第3期8卷 93-98页

作者： Alexandre Moura dos Santos Diego Sales de oliveira Rafael Giovani Misse Letícia Alves Perin Jean marcos de Souza Fernanda Rodrigues Lima Rosa Maria Rodrigues Pereira Samuel Katsuyuki Shinjo Division of Rheumatology Hospital das Clinicas HCFMUSP Faculdade de Medicina Universidade de Sao Paulo Sao Paulo Brazil

Background: Exercise training has demonstrating to be safe and promote benefits for several rheumatologic autoimmune diseases. However, no study has evaluated the safety and benefits of exercise in relapsing polychondritis. Aim: To evaluate the effectiveness of an exercise training program in a patient with relapsing polychondritis. Case presentation: A 67-year-old female patient with relapsing polychondritis in remission was submitted to a 12-week, twice weekly, aerobic and resistance training program. Aerobic capacity, muscle strength and function capacity, as well as body composition, were evaluated at baseline and after 12-weeks. Conclusions: Exercise training program demonstrated to be effective for increasing aerobic capacity, muscle strength and function, and for improving body composition in the patient. Further studies are necessary to confirm these findings.

关键词： Exercise Training Relapsing Polychondritis Aerobic Training Resistance Training