Ferruginous
Mostrando 13-24 de 28 artigos, teses e dissertações.
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13. Zoneamento florístico em campo ferruginoso em uma área do sul-sudeste do quadrilátero ferrífero, MG
This study presents the floristic and fitossociologic inventory of an area of a rupestrian ferruginous field located in Serra de Antônio Pereira, in the south southeast region of Iron Quadrangle in Ouro Preto, Minas Gerais. In order to collect data, 15 sample units of 10x10m were limited in each litotype of the substract studied: canga couraçada and itabir
Publicado em: 2010
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14. Floristics, structure and soil-vegetation relationship along a phytophysiognomic gradient on canga at Serra Sul, National Forest of Carajás - Pará / Florística, estrutura e relações solo-vegetação em gradiente fitofisionômico sobre canga, na Serra Sul, FLONA de Carajás - Pará
The vegetation associated with Ferruginous rock outcrops, commonly observed in the Carajás mountains and Quadrilátero Ferrifero, can be included within the concept of Rocky Fields, being called Ferruginous Fields (Campos Ferruginosos). These are, in turn, formed by a number of types (facies), influenced by environmental attributes such as: soils, water ava
Publicado em: 2009
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15. ATIVIDADE DA ENZIMA REDUTASE DE NITRATO EM TRÊS ESPÉCIES DE CAMPOS FERRUGINOSOS (CANGA) RESPONDE A FERTILIZAÇÃO NITROGENADA
Human activities have increased considerably the input of nitrogen in soils of agricultural and natural systems, may cause profound changes in physiology, morphology and ecology of plants. In this context, the activity of nitrate reductase (NR) becomes an important tool for understanding plant responses to increased N availability in soils through atmospheri
Publicado em: 2009
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16. Influência físico-hídrica nos atributos diagnósticos em latossolos do Distrito Federal / Water-physical influence on diagnostics attributes of distrito federal oxisols
Os Latossolos Vermelhos e os Latossolos Vermelho-Amarelos são os solos predominantes no Cerrado. A classe Latossolo Vermelho ocorre, sobretudo, nos topos das chapadas, enquanto a classe Latossolo Vermelho-Amarelo ocorre, principalmente, nas bordas de chapada e divisores, em superfícies planas, sempre adjacentes à classe dos Latossolos Vermelhos, e está a
Publicado em: 2009
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17. CompreensÃo da evoluÃÃo das encostas do mÃdio vale do rio Marrecas (planalto basÃltico - SW PR) atravÃs da caracterizaÃÃo de depÃsitos de colÃvio / Understanding the evolution of hilllside middle river valley Teal (plateau basalt - SW PR) through the characterization of colluvial deposits
The object of this research is to understand the evolution of the slopes of the middle valley of Marrecas River, established in basaltic rocks, located in southwestern of Paranà state, through the characterization of two colluvial deposits. Colluviums deposits are set on the slopes of the urban area in Francisco BeltrÃo, one of them located in the Hill of
Publicado em: 2009
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18. Análise de risco à erosão costeira na região de Tibau do Sul/RN através de mapeamento geoambiental e análise morfodinâmica
The research area is located on the county of Tibau do Sul, in the east coast of Rio Grande do Norte State, about 80km south of the capital Natal. The tourism represents the main income activity and Pipa beach is the most visited beach in the city, annually receives a large influx of domestic and foreign tourists. Some recent studies have reported the occurr
Publicado em: 2008
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19. Soils and environments of the Ferriferous Quadrangle (MG) and forestry suitability of the Coastal Plains / Solos e ambientes do QuadrilÃtero FerrÃfero (MG) e aptidÃo silvicultural dos Tabuleiros Costeiros
Two quite different Brazilian environments were approached in this work: the Ferriferous Quadrangle, located in the center-south portion of the State of Minas Gerais, and Coastal Plains, which extend in narrow strip along the coast from the State of Rio de Janeiro to AmapÃ. The first was studied in a more general context, with respect to the distribution of
Publicado em: 2008
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20. Paragonimiasis: first case reported in Brazil
The authors present a case from a 59 years old white female Brazilian patient, based in Salvador-Bahia, Brazil's northeastern side area, who experienced irritative cough and progressive dyspnea, and, after 18 months, was admitted to a hospital with respiratory insufficiency. The physical exam showed diffuse rales in both hemithoraces. Initial leukogram showe
Brazilian Journal of Infectious Diseases. Publicado em: 2007-02
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21. Processos redoxes de ferro em argilominerais: caracterização, métodos de quantificação, especiação e modificações estruturais
Redox processes within clays and clay minerals influence significantly in different physical and chemical properties in soils and sediments, mainly which ones related to the chemical interaction between solid and solution phases (liquid or gas) such as superficial charge and ion dynamics. Other, like expansibility, water retention capacity, surface area, and
Publicado em: 2007
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22. "Horizontes cimentados em Argissolos e Espodossolos dos tabuleiros costeiros e em Neossolos Regolíticos e Planossolos da depressão sertaneja no Nordeste do Brasil" / "Cemented Horizons in ultisol and spodosols from the coastal tablelands and in inceptisols and alfisols from the "sertaneja" depression of Northeast Brazil"
The present study was carried out in cemented horizons in Ultisols and Spodosols from the coastal tablelands, and in Inceptisols and Alfisols from the sertaneja depression of Northeast Brazil. The emphasis was concentrated on the cemented horizons developed in smooth depressions in the coastal tablelands. The main objective was to identify the cementing agen
Publicado em: 2004
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23. Analysis of ferruginous bodies in bronchoalveolar lavage from foundry workers.
Classical ferruginous bodies in tissue samples are considered to be markers of past exposure to asbestos. Recent studies have shown that the presence of ferruginous bodies in bronchoalveolar lavage (BAL) fluid correlates with past exposure to asbestos and offers a more sensitive reference than occupational history. Lavage samples from five subjects who had w
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24. Ferruginous bodies and pulmonary fibrosis in dead low to moderately exposed asbestos cement workers: histological examination.
Histological slides from the lungs of 89 dead asbestos cement workers have been examined with respect to ferruginous bodies and fibrosis. The results have been compared with individually matched controls with no known exposure to asbestos, and related to asbestos exposure, expressed as duration of exposure and cumulative asbestos dose, and smoking habits. Th