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Aquatic Macrophytes Detritus Quality and Sulfate Availability Shape the Methane Production Pattern in a Dystrophic Coastal Lagoon

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American Journal of Plant Sciences 2015年第10期6卷 1675-1684页

作者： andr. Luiz dos Santos Fonseca Claudio Cardoso Marinho Francisco de assis Esteves Instituto Federal de Educação Ciência e Tecnologia do Rio de Janeiro Rua Carlos Wenceslau Rio de Janeiro Brasil Laboratório de Limnologia Departamento de Biologia Universidade Federal do Rio de Janeiro Rio de Janeiro Brasil NUPEM—Universidade Federal do Rio de Janeiro Macaé Brasil

Aquatic macrophytes usually show high productivity rate, especially in shallow environments, and may constitute the main source of organic matter to these ecosystems. The coastal lagoons are shallow environments that typically present a broad colonization by aquatic macrophytes. The organic matter derived from aquatic macrophytes consists of detritus and root exudates, from live plants. Methanogens are microorganisms that use labile organic matter (e.g. acetate) in the metabolism, releasing methane (CH4) as an end product. Assessing the influence of aquatic macrophytes on methanogenesis is fundamental to understanding the carbon cycle in shallow environments, such as coastal lagoons. A peculiarity of coastal lagoons that may also influence the methanogenesis is its proximity to the sea, providing the entrance of sulfate in the environment. The methanogenesis can be inhibited by the sulfate reduction when there is sulfate availability sulfate. In this context, we aimed to analyze the methane production in an aquatic macrophyte stand and in the limnetic region of a coastal lagoon, assessing the influence of quantity and quality of organic carbon and sulfate availability on methane production in the sediment profile. We observe that the presence of aquatic macrophytes benefits the methanogenesis, not only by detritus accumulation, but particularly by the release of root exudates from the living plants. The variation in quantity and quality of organic carbon is the main factor that controls the range and shape of the methane production curves. The availability of sulfate presents probably a secondary role, being important when the organic matter is not sufficient for the occurrence of methanogenesis and sulfate reduction simultaneously.

关键词： Methanogenesis Sediment Root Exudates Competition Shallow Environments

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Photoluminescence emissions of Ca_(1-x)WO_(4):xEu^(3+):Bridging between experiment and DFT calculations

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Journal of Rare Earths 2022年第10期40卷 1527-1534页

作者： Amanda Fernandes Gouveia Marcelo assis Lara Kelly Ribeiro Aline Estefany Brandao Lima Eduardo de Oliveira Gomes Daniele Souza Yara Gobato Galvao Ieda Lucia Viana Rosa Geraldo Eduardo da Luz Jr Eva Guillamón Elson Longo Juan andr.s Miguel Angel San-Miguel Department of Physical and Analytical Chemistry University Jaume I(UJI)12071CastelloSpain Institute of Chemistry State University of Campinas(Unicamp)13083-970CampinasSPBrazil CDMF Federal University of S?o Carlos(UFSCar)P0.Box 67613565-905Sao CarlosSao PauloBrazil Departamento de Química Federal University of Piauí(UFPI)64049-550TeresinaPiautBrazil Physics Department Federal University of S?o Carlos(UFSCar)P.0.Box 67613565-905Sao CarlosSao PauloBrazil

In this work,the impact of the doping process on the photoluminescence emission of CaWO_(4) as a function of the concentration of Eu^(3+) cation(0.01 mol%,0.02 mol%,0.04 mol%,0.06 mol%,0.08 mol%,and 0.10 mol%) is discussed in ***_(1-x)WO~4:xEu^(3+) samples were successfully synthesized by a simple coprecipitation method followed by microwave *** blue shift in the absorption edge confirms the quantum confinement effect and the band gap energy covers the range from 3.91 to 4.18 eV,as the amount of Eu^(3+) cations *** experimental results are sustained by first-principles calculations,at the density functional theory level,to decipher the geometry and electronic properties,thereby enabling a more accurate and direct comparison between theory and experiment for the Ca_(1-x)WO_(4):xEu^(3+) structure.

关键词： Ca_(1-x)WO_(4):xEu^(3+) DFT calculations Photoluminescence emissions Rare earths

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Diagnosis of Boron Deficiency in Green Dwarf Coconut Palm

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Agricultural Sciences 2015年第1期6卷 164-174页

作者： Leandr. Glaydson da Rocha Pinho Pedro Henrique Monnerat andr. assis pires Marta Simone Mendonca Freitas Claudio Roberto Marciano Instituto Federal do Espirito Santo Campus ItapinaColatinaBrazil Universidade Estadual do Norte Fluminense Campos dos GoytacazesBrazil

The diagnosis of boron deficiency in coconut palms has been hampered by lack of information about its distribution in the plant. Two experiments were conducted, one in a greenhouse to induce boron deficiency in dwarf green coconut palms, and other in the field, in which the plants received doses of boric acid, B(OH)3. The objective was to verify symptoms of boron deficiency and boron content variation in canopy, leaves and folioles (or leaflets). Boron deficient plants led leaves and folioles to become deformed. The deficient and sufficient contents of boron varied significantly in the canopy, but did not vary in leaves. The boron content increased significantly from bottom to the apex of the folioles in both treatments. To survey the level of boron in the coconut palm, the ideal is, using samples taken from the youngest leaf, to calculate the relation between the boron content in the apex of the foliole and the content in the center or in the folioles bottom, with minimum values 2.2 or 2.7, respectively.

关键词： Symptoms Leaf Analysis Deficiency Induction Boric Acid Samples Cocos nucifera

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Floristic and Structural Analysis of Urban Tree Canopy: From Its Ecology to Its Social Issues

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Journal of Geoscience and Environment Protection 2024年第11期12卷 1-28页

作者： Richieri Antonio Sartori Ana Paula Balderi Camila Conti Anna Thereza Carcamo Henrique Rajão Jakeline Prata de assis pires Department of Biology Pontifical Catholic University of Rio de Janeiro Rio de Janeiro Brazil Copaba Environmental Association Socorro Brazil Institute of Biology Unicamp Campinas Brazil

Currently, urban areas are the largest segment of the world’s population, and they can reach up to 80% of it in some countries. Understanding green areas is of paramount importance to also understand the population’s mental health and well-being, as well as to achieve ecological understanding and its impact on urban infrastructure. Thus, the aim of the present study is to carry out a survey on both urban afforestation structure and on its social impact on a Brazilian municipality. It also sought to understand the damages caused by these species to urban infrastructure in comparison to data collected in 2009, to assess forest coverage in this municipality and tree planting underutilized capacity. Accordingly, all the streets in this municipality’s urban area, the botanical data of each tree and its damage to the city’s infrastructure and phytosanitary conditions were surveyed (from 1 to 5). Data were compared to those from the 2009 census, and social issues were analyzed. In total, 5044 individuals belonging to 189 species were recorded. The most often found species were Lagerstroemia indica and Murraya paniculata. Out of the total number of trees, 458 trees scored at least one score “5” in one of the criteria, and this number represents 8.9% of the total of the trees. L. indica was the species accounting for the highest rates of phytosanitary and infrastructure issues. Data comparison evidenced that urban tree canopy lost 25% of its vegetation between the two measurements taken herein, but the number of species has increased. When it comes to damages, many trees started showing phytosanitary issues or damage to urban infrastructure.

关键词： Urban Ecology Urban Tree Canopy Impact on Urban Infrastructure Socorro-SP Green Coverage

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Study of Wastewater Treatment Plants in Operation with UASB Reactors in the Municipality of Juazeiro do Norte-Ceará

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Journal of Environmental Science and Engineering(B) 2018年第6期7卷 215-223页

作者： Francisco de assis Martins Ponce Joao Paulo Leite Félix andr.Gadelha de Oliveira Ricardo Leandr. Santos Araújo Center of Technological Sciences University of FortalezaFortaleza 60811-905Brazil Department of Civil Construction Federal Institute of EducationScience and Technology of CearáFortaleza 60040-531Brazil

The indiscriminate release of effluents without any type of treatment,or previous treatment without adequate disinfection,can cause several inconveniences for the water body and society,including water-borne *** the present study,the physicochemical and biological aspects of three WWTPs(Wastewater Treatment Plants)operated with UASB(Upflow Anaerobic Sludge Blanket)technology in Juazeiro do Norte were analyzed in order to verify the state of CearáState legislation,compliance with standards for the release of domestic effluents into bodies’*** the research,it verified that the stations did not meet the effluent release standards for TSS(Total Suspended Solids)and removal of Escherichia coli in several analyzed *** also verified that the UASB stations need a post-treatment in order to assist in the process of removal of organic matter and pathogens.

关键词： Effluent UASB analyze

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Sustainable living neighbourhoods:Measuring public space quality and walking environment in Lisbon

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Geography and Sustainability 2022年第4期3卷 289-298页

作者： Teresa Santos Filipa Ramalhete Rui Pedro Julião Nuno pires Soares Interdisciplinary Centre of Social Sciences(CICS.NOVA) Faculty of Social Sciences and Humanities(NOVA FCSH)Universidade NOVA de LisboaAv.de Berna26 CLisboa 1069-061Portugal Studies Centre on Architecture City and Territory(CEACT)Universidade Autónoma de LisboaRua Fernando Assis Pacheco207Lisboa 1350-300Portugal

Obesity and global warming are two major challengesthat affect communities’health and quality of *** good walking environments,with appropriate pedestrian infrastructure,green areas and access to commercial retail and transport hubs favour liveable,healthy,and sustainable *** Lisbon City Hall has implemented an intervention program in the public space as a strategy to improve environmental quality and mitigate the effects of climate *** program“A square in each neighbourhood”intends not only to reinforce the economic base of Lisbon,namely tourism,restaurants,commerce,and creative activities but also to promote physical activity and improve the quality of living of all *** studying the impact of the public space quality on the walking environment,Campolide,a typical Lisbon neighbourhood,Portugal,which includes one of the requalified squares,was selected.A two-step methodology based on spatial modelling is *** the first step,the public space quality was evaluated based on a set of 13 urban quality ***,intended for the street level,were collected from open data platforms and complemented with a field ***,through spatial analysis,these attributes were used to build the Pedestrian Environment Quality Indicator and the Priority Intervention *** these indicators,walking-friendly streets were mapped and the most critical sites that require priority intervention were identified to prepare for the requalification planning *** street with the highest quality in the study area according to the dimensions evaluated-connectivity,convenience,comfort,cleanliness,and conviviality-has a great offer of trees,bus stops,commercial establishments,commercial diversity,crossings,paper bins/eco points and *** the opposite side of the rank,the street with the lowest quality has no trees or green areas,transport stops,benches and tables,or commercial *** urban quality indicators constitu

关键词： Public space Walking environment Spatial modelling Urban quality indicators Geographic Information Systems

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Phylogeny of Bacteria from Steelmaking Wastes and Their Acidic Enrichment Cultures

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Advances in Microbiology 2014年第12期4卷 816-828页

作者： Mariana P. Reis Flaviane A. Pinheiro Patrícia S. Costa Ana Paula C. Salgado Paulo S. assis Edmar Chartone-Souza andr.a M. A. Nascimento Departamento de Biologia Geral Instituto de Ciências Biológicas Universidade Federal de Minas Gerais Belo Horizonte Brazil Departamento de Engenharia Metalúrgica e de Materiais Escola de Minas Universidade Federal de Ouro Preto Ouro Preto Brazil

Currently, millions of tons of steel are produced worldwide. This has become a serious economic and environmental challenge because the ores used for steel production are nonrenewable resources and the production generates huge amount of waste. In this study, we identified and investigated the ability of bacteria from steelmaking waste with low and high zinc concentration to promote leaching of zinc, when enriched by acidic (pH 2) culture conditions. The bioleaching assays indicated removal of Zn, as in chemical leaching. Bacterial communities from crude and enrichment culture wastes were characterized by the 16S rRNA gene. Phylogenetic analysis of the generated clone libraries revealed predominance of Proteobacteria and Firmicutes. The Actino- bacteria, Bacteroidetes, Cyanobacteria, and Deinococcus-Thermus phyla were also encountered. The clones were most closely related to cultivable heterotrophic bacteria. Different genera were identified including iron redox cycling and leaching bacteria such as Chromobacterium, Aeromonas, Escherichia, Bacillus, and Ochrobactrum. These data add significant new information on bacteria which survive in extremely acidic conditions. They are distantly related to typical acidophiles responsible for the leaching process, which makes them good candidates for future studies on metal bioleaching.

关键词： Bacteria 16S rRNA Diversity Zinc Steelmaking Wastes

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What is the best biological treatment for rheumatoid arthritis? A systematic review of effectiveness

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World Journal of Rheumatology 2015年第2期5卷 108-126页

作者： Jéssica Barreto dos Santos Juliana de Oliveira Costa Haliton Alves de Oliveira Junior Lívia Lovato pires Lemos Vnia Eloisa de Araújo Marina Amaral de Avila Machado Alessandr. Maciel Almeida Francisco de assis Acurcio Juliana Alvares Postgraduate Programme in Medicines and Pharmaceutical assistance College of PharmacyFederal University of Minas GeraisAv.Presidente Antonio Carlos College of Pharmacy Federal University of Minas GeraisAv.Presidente Antonio Carlos Department of Social Pharmacy College of PharmacySUS Collaborating Centre-CCATESFederal University of Minas GeraisAv.Presidente Antonio Carlos College of Medicine Federal University of Minas GeraisAv.Prof.Alfredo Balena

AIM:To evaluate the effectiveness of the biological disease-modifying antirheumatic drugs(b DMARD) in the treatment of rheumatoid arthritis through a systematic review of observational ***:The studies were searched in the Pub Med,EMBASE,Cochrane Controlled Trials Register and LILACS databases(until August 2014),in the grey literature and conducted a manual *** assessed criteria of effectiveness included the EULAR,the disease activity score(DAS),the Clinical Disease Activity Index,the Simplified Disease Activity Index,the American College of Rheumatology and the Health Assessment *** meta-analysis was performed with Review Manager 5.2 software using a random effects model.A total of 35 studies were included in this ***:The participants anti-tumor necrosis factor inhibitors(TNF) nave,who used adalimumab(P = 0.0002) and etanercept(P = 0.0006) exhibited greater good EULAR response compared to the participants who used *** difference was detected between adalimumab and etanercept(P = 0.05).The participants who used etanercept exhibited greater remission according to DAS28 compared to the participants who used infliximab(P = 0.01).No differences were detected between adalimumab and infliximab(P = 0.12) or etanercept(P = 0.79).Better results were obtained with b DMARD associated with methotrexate than with b DMARD *** good EULAR response and DAS 28 was better for combination with methotrexate than b DMARD monotherapy(P = 0.03 e P < 0.00001).In cases of therapeutic failure,the participants who used rituximab exhibited greater DAS28 reduction compared to those who used anti-TNF agents(P = 0.0002).The participants who used etanercept achieved greater good EULAR response compared to those who did not use that drug(P = 0.007).Studies that assessed reduction of the CDAI score indicated the superiority of abatacept over rituximab(12.4 vs +1.7) and anti-TNF agents(7.6 vs 8.3).The present systematic review with meta-analys

关键词： Systematic review Meta-analysis Effecti-veness Biological disease-modifying antirheumatic drugs Rheumatoid arthritis

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CXCL9 and CXCL10 display an agedependent profile in Chagas patients:a cohort study of aging in Bambui,Brazil

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Infectious Diseases of Poverty 2020年第3期9卷 132-132页

作者： Fernanda Fortes de Araújo Karen Cecília Lima Torres Sérgio Viana Peixoto Antonio Luiz Pinho Ribeiro Juliana Vaz Melo Mambrini Vitor Bortolo Rezende Maria Luiza Lima Silva Antônio Ignácio Loyola Filho andr.a Teixeira-Carvalho Maria Fernanda Lima-Costa Olindo assis Martins-Filho Integrated Research Group in Biomarkers Rene Rachou InstituteOswaldo Cruz FoundationAvenida Augusto de Lima1715–Barro Preto–Belo HorizonteMinas Gerais 30190-002Brazil 不详

Background:Chagas disease is endemic in Latin America and still represents an important public health problem in the *** cardiomyopathy is the most significant chronic form due to its association with morbidity and *** last decade has seen increasing evidence that inflammatory cytokines and chemokines are responsible for the generation of inflammatory infiltrate and tissue damage,with chronic chagasic cardiomyopathy patients presenting a pro-inflammatory immune *** studies have evaluated the role of chemokines in experimental *** infection,few have addressed their systemic profile,especially for human infection and in aging *** present work aimed to use the data from a large population based study of older adults,conducted in an endemic area for Chagas disease,to examine the association between serum levels of cytokines and chemokines,*** infection and electrocardiogram(ECG)***:The present work evaluated serum levels of CCL2,CXCL9,CXCL10,CCL5,CXCL8,IL-1β,IL-6,TNF,IL-12 and IL-10 by Flow Cytometric Bead Array assay(CBA)and the results expressed in pg/*** baseline survey started in January 1st 1997,with 1284 participants of an aged population-based *** signed an informed consent at baseline and at each subsequent visit and authorized death certificate and medical records ***:Our results demonstrated that Chagas disease patients had higher serum levels of CXCL9,CXCL10 and IL-1βand lower serum levels of CCL5 than non-infected ***,our data demonstrated that CXCL9 and CXCL10 increased in an age-dependent profile in Chagas disease ***:Together,this study provided evidences that serum biomarkers increase along the age continuum and may have potential implications for establishing clinical management protocols and therapeutic intervention in Chagas disease patients.

关键词： Chagas disease Immune biomarkers Chemokines Cytokines Cohort

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Quantum States of Interacting Atoms in Quasi-One-Dimensional Ultracold Trapped Gases

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Journal of Modern Physics 2018年第3期9卷 443-460页

作者： Polyanna Guimaraes e Miranda Débora Nazaréde Freitas andr.Luiz Mota Departamento de Ciências Naturais Universidade Federal de Sao Joao del-ReiSao Joao del-ReiBrazil Instituto Federal do Paraná Campus assis Chateaubriand Assis ChateaubriandBrazil

We theoretically investigate the quantum states of a Hamiltonian model for quasi-one-dimensional ultracold trapped gases. From the ansatz given by the numerical solution of the Schrödinger equation of the system, we develop a scattering potential functional form and an approximate solution for the analytical approach of the model. We obtain the set of approximate eigenstates and eigenenergies that can be used in future improvements on the study of atomic scattering in low dimensional ultracold gases. We also show that there is a parity inversion of the ground state of the model as the interaction strength increases.

关键词： Ultracold Trapped Gases Confined Eigenstates Resonance

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