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Changes of Estuarine Sedimentation Patterns by Urban Expansion: The Case of Middle Capibaribe Estuary, Northeastern Brazil

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International Journal of Geosciences 2017年第4期8卷 514-535页

作者： Roberto lima Barcellos Rubens César Lopes Figueira Elvis Joacir Franç a Carlos Augusto Schettini Diego de Arruda xavier departament of Oceanography Federal University of Pernambuco Recife Brazil Oceanographic Institute Universityof S&atilde o Paulo S&atilde o Paulo Brazil departament of Environmental Analysis Regional Center Nuclear Science of Northeast Rio de Janeiro Brazil

The aim of this study is to describe the sedimentary evolution occurred during the last 200-years in the middle Capibaribe Estuary by mean of the sedimentary analysis (magnetic susceptibility, grain size, calcium carbonate, total organic matter—TOM) and geochemical parameters (sedimentation rates, heavy metal concentrations, enrichment and contamination factor) along a core. The core recorded four units and the measured sedimentation rate was 0.52 cm cm·y﹣1. The first unit, dating before 1812, showed environmental characteristics of mangrove with predominance of fine sediments, high total organic matter percentages and heavy metal concentrations probably from natural sources. The second unit, from 1812 to 1937, showed a slight increase in sand percentages and decrease in fine fraction, TOM contents and heavy metals concentrations. These characteristics may be associated with the urban expansion processes and the presence of monoculture of sugar cane occurred in the middle Capibaribe Estuary. The third unit, from 1937 to 2004, showed the highest sand percentages of the core, characterizing a unit exclusively of sand with low fine fractions percentages, total organic matter contents and heavy metals concentrations. This unit represented the intensification of the urban processes expansion of Recife City. The fourth unit showed increases in fine fraction sedimentation, TOM contents and heavy metals concentrations. This new change in sedimentation probably is consequence of rebirth of marginal estuarine banks by mangrove vegetation, due to environmental projects carried out by Recife Prefecture in the early 2000’s. It was not possible to register the anthropic contamination to middle estuary area probably due to the Barreiras Formation influences in the metal concentration records, masking the anthropic contamination inputs in estuarine region. Although, lead and arsenic showing an enrichment level indicating anthropic contamination.

关键词： Sedimentary Evolution Grain Size Heavy Metals Sedimentation Rate

Parasite Fauna of Lutjanus synagris Commercialized in the Fish Market from Bragança-PA,Brazil

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Journal of Zoological Research 2019年第3期1卷 1-4页

作者： Natalino da Costa Sousa Daiana Silva dos Santos Silmara Rosa Silva Alexandre Vaz da Silva Jucimauro de Araújo P.Junior João vitor Antunes Miranda Pedro Rodrigo Nery de Souza Matheus Carvalho de Melo Fagner de Melo xavier Wellington lima da Silva Junior Fabricio Ramos Menezes Márcia Valeria Silva do Couto Federal University of Pará(UFPA) Campus BragançaAlameda Leandro RibeiroBragança68600-000PABrazil Federal University of Pará(UFPA) Campus Tucuruí-ParáBrazil Federal University of Sergipe(UFS) Departamento de Pesca e Aquicultura.Aracaju-SergipeBrazil Instituto Federal do Pará(IFPA) Campus de Cametá-ParáBrazil

Studies about the parasite fauna of marine fish highlights as an important problem for public health with zoonotic parasites or affecting the fish ***,this study evaluated the parasite fauna of Lutjanus synagris commercialized in the fish market from Braganç*** laboratory,58 fish were measured,weighted and conducted to parasitological analysis to determine parasitological indexes and relative *** parasite was fixed and identified until to the lowest taxonomic *** the parasitological analysis,it found Cymothoidae,Digenea,Cucullanus *** Procamallanus(Spirocamallanus)sp.,with total prevalence 67.24%.Digenea showed the highest prevalence and mean intensity *** nematode,Cucullanus *** the greater prevalence and relative dominance,while Procamallanus(Spirocamallanus)*** the greater mean intensity and *** showed the lowest prevalence and mean intensity *** conclusion,the parasite fauna of *** has been noted with low diversity,reporting the nematode occurrence Procamallanus(Spirocamallanus).

关键词： Cymothoidae Parasite Marine fish

Electrochemical Evaluation of Aminoguanidine Hydrazone derivative with Potential Anticancer Activity:Studies of Glassy Carbon/CNT and Gold Electrodes Both Modified with PAMAM

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Journal of Biomaterials and Nanobiotechnology 2020年第1期11卷 33-48页

作者： Marilya Palmeira Galdino da Silva Ygor Mendes de Oliveira Anna Caroline lima Candido Joao xavier de Araujo-Junior Erica Erlanny da Silva Rodrigues Kadja Luana Chagas Monteiro Thiago Mendonca de Aquino Fabiane Caxico de Abreu Institute of Chemistry and Biotechnology Federal University of AlagoasMaceioALBrazil Institute of Pharmaceutical Sciences Federal University of AlagoasMaceioALBrazil

Aminoguanidine hydrazones (AGHs) are a class of compounds that have interesting pharmacological activities. They are derived from the same chemical group as aminoguanidine, so it has mixed properties (receptor and donor) in the formation of hydrogen bonds. Its anticancer agent properties were recently highlighted, but the molecules of this class have solubility in aqueous solutions that can be considered low. The identification of this class, by a simple, sensitive and low-cost technique, such as electrochemistry, which also allows the evaluation of its solubilization process through agents such as PAMAM dendrimer is the main objective of the work described here. The electrochemical response of the LQM10 (AGH derivative) was evaluated, as well as its behavior in different electrochemical sensors. Electrochemical experiments were performed in buffered (phosphate at pH 7.02 and acetate at 4.5). LQM10 has a reversible oxidation peak with a potential of +0.22 V. It was efficiently detected in different electrodes tested (glass carbon/CNT, glass carbon/CNT/PAMAM), which proves the viability of the electrodes for various analyses and has the determination of the apparent constant association, indicating its interaction with the analysis that is higher in the presence of the PAMAM encapsulating agent. This was corroborated by the results for the modified gold electrode with MUA and PAMAM. The sum of the results shows the possibility of electrochemically evaluating the Aminoguanidine hydrazone derivative, the viability of electrodes employed and the greater solubilization of LQM10 in the presence of the PAMAM dendrimer.

关键词： Drug delivery Aminoguanidine Hydrazone Modified Electrode PAMAM

Sward Structural Characteristics and Performance of Beef Heifers Reared under Rotational Grazing Management on Campos Grassland

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American Journal of Plant Sciences 2014年第7期5卷 1020-1029页

作者： Cezar Wancura Barbieri Fernando Luiz F. de Quadros Felipe Jochims émerson Mendes Soares Leandro Bittencourt de Oliveira Régis Maximiliano R. Carvalho Gabriela Machado Dutra Felipe xavier de lima Franciele Gusatto Natural Grassland Ecology Research Group (LEPAN-UFSM) Universidade Federal de Santa Maria Animal Science Department Santa Maria Brazil

This study aimed to evaluate the effect of two rest intervals on structural sward characteristics and productive performance of beef heifers reared on Campos grassland managed on rotational grazing. The treatments were two intervals between grazing of 375 and 750 DD (degree days), based on thermal cumulative sum for leaf expansion of native grasses belonging to two functional groups. The experimental design was a randomized complete block design with two treatments and three replications. The tested animals were beef heifers with initial age of 12 months and average weight of 185.2 ± 17.4 kg. Measures in the pasture were: herbage mass, mass of green leaf blades, stem mass, dead material mass and green leaf allowance. The 750 DD rest interval presented higher herbage mass (24%), higher green herbage mass and 19% more leaves in the canopy. This rest interval also presents a high proportion of dead material and stems in the sward structure. In the other way, the 375 DD rest interval presents better chemical characteristics, with 20% more crude protein in the hand plucking samples. Heifers’ dry matter intake was similar between the rest intervals (2.04% of live weight) and the bite mass was also similar (0.22 g DM per bite) but the animal performance was higher in the 375 DD rest interval. The stocking density showed similarity between treatments with an average of 875 kg/LW/ha. The live weight gain per area was higher in 40 kg/LW/ha (P = 0.117) for 375 DD rest interval, reaching 251 kg/LW/ha produced over the 149 experimental days. Based on these results, we can conclude that the treatment of shortest interval between defoliation gave the highest gain individual animals in warm seasons.

关键词： Average Daily Gain Duration of Leaf Expansion Herbage Mass Rotational Grazing Stocking Rate

HIV-Associated Nephropathy in an HIV-2-Infected Patient

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World Journal of AIDS 2020年第1期10卷 15-22页

作者： Francisco Martins Do Vale Catarina Abrantes Maria lima Maria Isabel Casella Telma Azevedo vitor Laerte Pinto Junior Jose Pocas Infectious Diseases department Hospital de Sao BernardoCentro Hospitalar de SetubalSetubalPortugal Nephrology department Hospital de São BernardoCentro Hospitalar de SetubalSetubalPortugal

Background: Human immunodeficiency virus (HIV) type 2 infection is predominantly found in West African nations, and approximately 1 - 2 million people are thought to be infected. HIV-associated nephropathy (HIVAN) occurs in about 7% of patients with HIV-1 infection and is one of the most important causes of end-stage renal disease in this population. The only reported case of HIVAN related to HIV-2 infection was described by Izzedine et al. (2006). Aim: The aim of this paper is to report a case of HIVAN in an HIV-2-infected patient, a rarely described condition. Case presentation: We describe a case of a 40-year-old HIV-2-infected female from Angola hospitalized following a six-month history of fever, fatigue, anorexia and weight loss. Laboratory data revealed anaemia, leukopenia and renal dysfunction with nephrotic range proteinuria. Renal biopsy was performed, revealing findings consistent with HIVAN. Also, a presumed diagnosis of ganglionic tuberculosis was established. Conclusion: The slow progression of HIV-2 disease could explain the low frequency of this condition, however, more studies should be carried out for a better understanding of HIV-2 pathophysiology and its associated complications.

关键词： Acquired Immunodeficiency Syndrome HIV-Associated Nephropathy HIVAN HIV-2

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 Andréa 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

The Role of CD4+ and CD8+ T-Cells during Angiostrongylus vasorum Infection in Dogs

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Open Journal of Animal Sciences 2014年第5期4卷 285-290页

作者： Thales Augusto Barcante Lis Ribeiro do Valle Antonelli Kenneth Gollob Thiago Pasqua Narciso Silvio Divino de Oliveira Junior vitor Marcio Ribeiro Ricardo Toshio Fujiwara Ana Paula Peconick debora Negrao-Correa Walter dos Santos lima Joziana Muniz de Paiva Barcante Laboratorio de Biologia Parasitaria(BIOPAR) Departamento de Medicina VeterinariaSetor PreventivaUniversidade Federal de Lavras(UFLA)LavrasBrazil Instituto de Ciencias Biologicas Universidade Federal de Minas GeraisBelo HorizonteBrazil Programa de Pos-graduacao em Ciencias Veterinarias Departamento de Medicina VeterinariaUniversidade Federal de Lavras(UFLA)LavrasBrazil

A determinant factor in the pathology of canine angiostrongylosis seems to be related to the location of the parasite in the definitive host. Their presence inside the arteries and its branches, promoting mechanical and metabolic action on the wall of the vessels, may alter its homeostasis. Bronchoalveolar lavage (BAL) is a procedure that retrieves cells and other elements from de lungs for evaluation, and helps in the diagnosis of many pulmonary diseases. The aim of this study was to evaluate CD4+/CD8+ lymphocyte profile during the infection by Angiostrongylus vasorum, using cells retrieved using BAL. The identification of subpopulations of T lymphocytes by evaluating the co-expression of CD4 and CD8 receptor proteins has shown that despite the increase in both populations, there was a predominance of CD4+ T-cells, instead of CD8+ T-cells. These increases of CD4+ T-cells associated with the increase of the ratio between CD4+/CD8+ suggest polarization of a Th2 response. However, the immune cells, signaling factors, and cytokines that mediate such immunity and how and where they act within the body remain largely undefined during angiostrongylosis.

关键词： Citometria Angiostrongyliasis Brochoalveolar Lavage

Unravelling the protracted U-Pb zircon geochronological record of high to ultrahigh temperature metamorphic rocks:Implications for provenance investigations

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Geoscience Frontiers 2023年第2期14卷 116-132页

作者： Mahyra Tedeschi Pedro Leonardo Rossi Vieira Matheus Kuchenbecker Bruno VRibeiro vitor Barrote Humberto Reis Laura Stutenbecker Cristiano Lana Antonio Pedrosa-Soares Ivo Dussin Programa de Pós-graduação em Geologia da Universidade Federal de Minerais Centro de Pesquisas Manoel Teixeira da CostaInstitute of GeosciencesFederal University of Minas GeraisAv.Antônio Carlos6627Belo Horizonte 31270-901Brazil Institute of Geological Sciences University of Bern3012 BernSwitzerland Laboratório de Estudos Tectônicos Universidade Federal dos Vales do Jequitinhonha e MucuriRodovia MGT 367Km 583-Diamantina 39100-000Brazil School of Earth Atmosphere and EnvironmentMonash UniversityClaytonVictoria 3800Australia Timescales of Mineral Systems Group School of Earth and Planetary SciencesCurtin UniversityPerthWA 6845Australia Freie Universität Berlin Institut für Geologische WissenschaftenGeochemieMalteserstr.1074-10012249 BerlinGermany departamento de Geologia-Escola de Minas Universidade Federal de Ouro Preto 35400-000Brazil department of Materials and Earth Sciences Institute of Applied GeosciencesTU DarmstadtSchnittspahnstr.964287 DarmstadtGermany TEKTOS Geotectonic Research Group Geology InstituteRio de Janeiro State UniversitySão Francisco Xavier Street524/4030-AMaracanãRio de Janeiro 20550-900Brazil

The assessment of detrital zircon age records is a key method in basin analysis,but it is prone to several biases that may compromise accurate sedimentary provenance *** to ultrahigh temperature(HT-UHT)metamorphism(especially if T>850℃)is herein presented as a natural cause of bias in provenance studies based on U-Pb detrital zircon ages,since zircon from rocks submitted to these extreme and often prolonged conditions frequently yield protracted,apparently concordant,geochronological *** age spreading can result from disturbance of the primary U-Pb zircon system,likewise from(re)crystallization processes during multiple and/or prolonged metamorphic *** this contribution,available geochronological data on Archean,Neoproterozoic and Palaeozoic HT-UHT metamorphic rocks,acquired by different techniques(SIMS and LA-ICP-MS)and showing distinct compositions,are reassessed to demonstrate HT-UHT metamorphism may result in modes and age distributions of unclear geological *** a consequence,it may induce misinterpretations on UPb detrital zircon provenance analyses,particularly in sedimentary rocks metamorphosed under such extreme temperature *** evaluate the presence of HT-UHT metamorphism-related bias in the detrital zircon record,we suggest a workflow for data acquisition and interpretation,combining a multi-proxy approach with:(i)in situ U-Pb dating coupled with Hf analyses to retrieve the isotopic composition of the sources,and(ii)the integration of a petrochronological investigation to typify fingerprints of the HT-UHT metamorphic *** proposed workflow is validated in the investigation of one theoretical and one natural example allowing a better characterization of the sedimentary sources,maximum depositional ages,and the tectonic setting of the *** workflow allows to the appraisal of biases imposed by HT-UHT metamorphism and resulting disturbances in the U-Pb detrital zircon record,particularly for sedimentary

关键词： detrital zircon Protracted zircon record Sedimentary basins UHT metamorphism Prolonged metamorphism Bias in detrital zircon

Can the Ucides cordatus Fishing and the Crassostrea gasar Creation on the Amazon Coast Make up the Curriculum of Rural Schools

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Journal of Fisheries Science 2021年第1期3卷 37-46页

作者： Ivaney dos Santos Cardoso Elaine Vasconcelos Bezerra Alves Leandro Lopes Rodrigues Ana Célia Barbosa Guedes LuãCaldas de Oliveira Manoel Luciano Aviz de Quadros Débora Tatyane Oliveira xavier Altevir Signor Fabricio Nilo lima da Silva Instituto Federal de Educação Ciência e Tecnologia do Pará(IFPA)Campus Avançado VigiaRodovia PA-140Km 55próximo ao trevo de São CaetanoVigiaPará68.780-000Brasil Universidade da Amazônia(UNAMA) Campus Alcindo Cacela.Avenida Alcindo Cacela287-UmarizalBelémPará66060-000Brasil Instituto Federal de Educação Ciência e Tecnologia do Pará(IFPA)Campus Breves.Rua Antônio Fulgêncio da Silvas/n-Bairro:Parque UniversitárioBrevesPará68.800-000Brasil Faculdade Católica Paulista.Avenida Cristo Rei n 305 17515-200MaríliaSão PauloBrasil Universidade Estadual do Oeste do Paraná(UNIOESTE) Campus Toledo.Rua da Faculdade645-Jardim La Salle85903-000ToledoParanáBrasil

The fishing and ostreiculture activities practiced in the coast of the Eastern Amazon in the state of Pará,Brazil,became important to be inserted in rural ***,this literature review aimed to realize a brief theoretical discussion about the important aspects of rural education in promoting the development of fishing and *** the accomplishment of the literary research it was sought to explain the definition in education;rural education and valorization of the rural environment;environmental education as a transversal theme;fishing and aquaculture as a teaching strategy;considerations of fishing and ostreiculture;challenges and perspectives of the teaching of fishing and aquaculture in education;and booklet as a pedagogical tool in *** conclusion,the use of fishing and ostreiculture as a strategy for rural schools through environmental education is important to foster fishing activity in communities,as well as the sustainable use of natural resources.

关键词： Fishing resources Ostreiculture Environmental education Brazil