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Search Results: 1 - 10 of 36285 matches for " Nelson Augusto dos;Cardoso "
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Coloniza??o natural por espécies nativas e exóticas das encostas degradadas da Serra do Mar
Santos Junior, Nelson Augusto dos;Cardoso, Victor José Mendes;Barbosa, José Marcos;Rodrigues, Maurício Augusto;
Revista árvore , 2010, DOI: 10.1590/S0100-67622010000200009
Abstract: the landslides are inherent events to the dynamics of the serra do mar, in the stretches most declivous. however, some factors of intervention, such as atmospheric pollution, occupation of the base of the mounts, among others, increase the incidence of this event. furthermore, the present study aimed to evaluate the settling dynamics of degraded areas of hillsides, aiming for a restoration. two experimental areas were adopted, in stretches of the serra do mar, next to the baixada santista where parcels of one m2 had been launched, and phytosociological data was obtained. after that, the areas were cleaned and the same parameters of the initial evaluation were registered, monthly, during 1 year. twenty species were found, pertaining to 14 families, in its majority exotic or not-regional native species.
Avalia??o da chuva de sementes em áreas de restinga em diferentes estágios de regenera??o
Rodrigues, Maurício Augusto;Paoli, Adelita Aparecida Sartori;Barbosa, José Marcos;Santos Junior, Nelson Augusto dos;
Revista árvore , 2010, DOI: 10.1590/S0100-67622010000500007
Abstract: this study was conducted in an area of restinga in the municipality of s?o vicente (sp). the study aimed to evaluate the seed rain in three different conditions of regeneration. was selected the following conditions: high forest of restinga in the middle stage of regeneration, an area of clearing in the same condition mentioned above and a third in early stages of regeneration. in each condition were installed 10 seed collectors made of wood and screen with 80% of shade, supported to a height of 20cm of soil. they were evaluated monthly for one year, the densities of seed deposited in the collector, these seedlings are identified and categorized based on their dispersion syndrome and successional classes. the area of high forest area was carried out a phytosociological survey to identify which seedlings present in the rain could be from these areas. it was found that the densities of seedlings are relatively low compared to other formations of the atlantic rain forest, but consistent with other studies of the same type of vegetation used in the study. regarding dispersal syndromes and successional classes, there was prevalence of the zoocoric syndrome and species of secondary successional classes. the results indicate that the area has good ability to maintain their succession dynamics.
How Much Do Adjuvant and Nozzles Models Reduce the Spraying Drift? Drift in Agricultural Spraying  [PDF]
Fabiano Griesang, Ricardo Augusto Decaro, Cícero Ant?nio Mariano dos Santos, Eduardo Souza Santos, Nelson Henrique de Lima Roque, Marcelo da Costa Ferreira
American Journal of Plant Sciences (AJPS) , 2017, DOI: 10.4236/ajps.2017.811188
Abstract: The spraying of herbicides in crops has become the main form of weed control. Although it means unexpected effects on non-target plants resulted by spraying drift. Thus, improvements in application techniques, as the best selection of spray nozzles and adjuvant, are essential to avoid environmental contamination and economic losses. On this work, we evaluate how much adjuvant associated with nozzles can reduce the spray drift. The nozzles used at experiment were air induction flat tip, hollow cone and twinjet and the spray liquids, which were composed of herbicide glyphosate and phosphatidylcholine + propionic acid adjuvant. Measurements were made at wind tunnel and droplet sizer, at laser diffraction method. The models of nozzles influence in droplet size characteristics and in occurrence of spray drift. The use of adjuvants reduces the spray drift only combined with the twinjet nozzle, while for the other models the adjuvant did not reduce the global spray drift at significant levels. The adjuvant reduced the spray drift until 39%, while the nozzles model reduced until 74%. Both techniques when combined were able to reduce until 80%. The model of nozzle has the biggest result on drift mitigation and the use of adjuvants can increase the drift mitigation specially with nozzles that produces smallest droplets.
Tendência secular da doen?a respiratória na infancia na cidade de S?o Paulo (1984-1996)
Benicio,Maria Helena D'Aquino; Cardoso,Maria Regina Alves; Gouveia,Nelson da Cruz; Monteiro,Carlos Augusto;
Revista de Saúde Pública , 2000, DOI: 10.1590/S0034-89102000000700012
Abstract: objective: data from two consecutive household surveys undertaken in mid-80s and mid-90s allow to characterize and analyse secular trends in infant and child respiratory diseases in the city of s. paulo, brazil. methods: the two surveys included random population samples aged from zero to 59 months (1,016 in the period of 1984-85 and 1,280 in 1995-96). in both surveys the instant prevalence of high respiratory diseases (above the epiglottis) and low respiratory diseases with or without wheezing were calculated. all sampled children were examined in their household at a random day by trained pediatricians using standardized procedures. the examinations included medical history, past respiratory diseases and a complete physical examination. in both surveys the examinations were distributed throughout a period of almost 12 months to assure a uniform coverage of the various areas of the city along the four seasons of the year. for each survey, the study of the social distribution of the diseases took into account tertiles of the per capita family income. for the study of the determinants of secular trends, hierarchical causal models, multivariate regression analyses and calculations analogous to the ones used to assess population attributable risks were applied. results/conclusions: in the time span from the first to the second survey, there was a substantial increase in the prevalence of both low (from 22.2% to 38.8%) and high respiratory diseases (from 6.0% to 10.0% and from 0.8% to 2.8%, without and with wheezing, respectively). in the case of high respiratory disease and low respiratory disease without wheezing, an increase in prevalence was observed among all social strata, which did not interfere with the slightly less favourable situation of the lower income groups. in the case of low respiratory disease with wheezing, the increase was only observed among middle and low-income groups, being particularly high among the lower income group, yielding a significant in
Tendência secular da doen a respiratória na infancia na cidade de S o Paulo (1984-1996)
Benicio Maria Helena D'Aquino,Cardoso Maria Regina Alves,Gouveia Nelson da Cruz,Monteiro Carlos Augusto
Revista de Saúde Pública , 2000,
Abstract: OBJETIVO: Estimar a prevalência e a distribui o social da doen a respiratória na infancia, estabelecer a tendência secular dessa enfermidade e analisar sua determina o, com base nos dados coletados por dois inquéritos domiciliares realizados na cidade de S o Paulo, SP, em 1984/85 e em 1995/96. MéTODOS: Os inquéritos estudaram amostras probabilísticas da popula o residente na cidade com idades entre zero e 59 meses (1.016 em 1984/85 e 1.280 em 1995/96). Nos dois inquéritos estimou-se a prevalência instantanea da doen a respiratória alta (acima da epiglote) e da doen a respiratória baixa com e sem chiado à ausculta pulmonar. A ocorrência da doen a respiratória foi aferida por exames clínicos realizados em dias aleatórios, nos próprios domicílios das crian as, por médicos pediatras devidamente treinados e padronizados quanto ao diagnóstico da doen a. Os exames clínicos incluíam a anamnese do dia, antecedentes de doen a respiratória e o exame físico completo da crian a, incluindo inspe o da orofaringe, otoscopia e ausculta pulmonar. Nos dois inquéritos, os exames foram distribuídos ao longo de um período de cerca de 12 meses, de modo a garantir uma varredura uniforme das várias áreas da cidade ao longo das quatro esta es. O estudo da distribui o social da doen a respiratória levou em conta tercis da renda familiar per capita em cada um dos inquéritos. A estratégia analítica para estudar os determinantes da evolu o da prevalência da doen a na popula o empregou modelos hierárquicos de causalidade, análises multivariadas de regress o e procedimentos análogos aos utilizados para calcular riscos atribuíveis populacionais. RESULTADOS/CONCLUS ES: Houve entre os inquéritos aumentos expressivos na prevalência instantanea da doen a respiratória alta (de 22,2% para 38,8%) e da doen a respiratória baixa sem e com chiado (de 6,0% para 10,0% e de 0,8% para 2,8%, respectivamente). No caso da doen a alta e da doen a baixa sem chiado, o aumento é generalizado nos vários estratos sociais, o que n o altera, no período, a situa o discretamente menos favorável dos estratos de menor renda. No caso da doen a baixa com chiado, o aumento se restringe aos estratos de renda baixa e intermediária, sendo particularmente intenso no estrato de menor renda, o que determina o surgimento de uma forte rela o inversa entre a doen a e a renda familiar. Mudan as positivas em determinantes distais das doen as respiratórias (renda familiar e escolaridade materna) e em variáveis relacionadas à salubridade das moradias justificariam declínio modesto e n o aumento das doen as respiratórias
Rhinitis is Also Common in Infants with Asthma
Herberto José Chong Neto,Nelson Augusto Rosário,Gabriele Cardoso Westphal,Carlos Ant?nio Riedi
Iranian Journal Of Allergy, Asthma and Immunology , 2010,
Abstract: The aim of this study was to assess the frequency of rhinitis in asthmatic infants.A cross-sectional study was conducted using clinical data obtained from a standardized allergy work-up form that includes specific questions on common allergic diseases. Asthmatic patients were seen at the first visit to the Pediatric Allergy Unit, from January 2001 to January 2006, were selected for analysis. Diagnosis of allergic rhinitis was based on the presence of two or more nasal symptoms (sneezing, itching, congestion and rhinorrhea). Allergic sensitization was assessed by skin prick test for Dermatophagoides pteronyssinus, Blomia tropicalis, Blattella germanica, Lolium perenne, dog and cat danders.Four hundred and ninety-three infants (under 2 years of age) were selected from a total of 1543 asthmatics aged 0-14 years, 58% males. Physician diagnosis of rhinitis in infants was registered in 367 (74%) and 131 (36%) had positive skin prick test to at least one allergen. Infants were more frequently sensitized to Dermatophagoides pteronyssinus (43%) and Blomia tropicalis (27%). Among asthmatic children ≥2 years old, 890 (84%) also had rhinitis, 773 (87%) were atopic. Among those children with rhinitis, one hundred and eighty six were fully skin prick tested with a standard panel of common aeroallergens. There was no difference between sensitization in asthmatic infants and older asthmatic children with allergic rhinitis.Thus the frequency of rhinitis in asthmatic infants as well as atopic sensitization were similar to older children.
Acila??o de Friedel-Crafts do 2-metoxinaftaleno usando o ácido dodecafosfotúngstico suportado em sílica (HPW/SiO2) como catalisador e acetonitrila como solvente
Santos, Gil Luciano Guedes dos;Silva, Creuza Souza;Cardoso, Luiz Augusto Martins;
Química Nova , 2010, DOI: 10.1590/S0100-40422010000100012
Abstract: the synthesis of fine chemicals intermediates using friedel-crafts acylation is one of the most important methods in chemical technology. in this work, the acylation of 2-methoxynaphthalene with acetic anhydride using a silica-supported dodecatungstophosphoric acid catalyst (hpw/sio2) and acetonitrila as solvent was studied, showing that this reaction is a feasible alternative to produce intermediaries to replace the current methods of production. the reactions using acetonitrile solvent showed yields greater than or equal to the reactions using traditional solvents such as nitrobenzene and dichloroethane. finally, the modified eley-rideal mechanism was proposed to elucidate the experimental data obtained.
Influência do Fósforo, Micorriza e Nitrogênio no Conteúdo de Minerais de Brachiaria brizantha e Arachis pintoi Consorciados
Santos ívina Paula Almeida dos,Pinto José Cardoso,Siqueira José Oswaldo,Morais Augusto Ramalho de
Revista Brasileira de Zootecnia , 2002,
Abstract: O experimento foi conduzido em casa de vegeta o com o objetivo de avaliar a influência do fósforo (P), fungos micorrízicos arbusculares (FMA's) e nitrogênio (N) no acúmulo de minerais na MS da parte aérea de braquiária MG-4 (Brachiaria brizantha cv. MG-4) e amendoim forrageiro (Arachis pintoi cv. Amarillo) consorciados, em solo de baixa fertilidade. O delineamento utilizado foi o inteiramente casualizado, num esquema fatorial 5x2x2, sendo cinco doses de P (25, 50, 75, 100 e 200 mg de P/kg de solo), dois tratamentos de inocula o do solo (inoculado e n o com o FMA Glomus etunicatum) e dois tratamentos de N (com e sem N em cobertura), com quatro repeti es. Foi realizado o corte da parte aérea das plantas aos 60 dias após a germina o para a determina o das quantidades acumuladas de N, P, K, Ca, Mg e S na MS da parte aérea. As aduba es fosfatada e, principalmente, a nitrogenada provocaram aumento no conteúdo de N, P, K, Ca, Mg e S na braquiária MG-4, n o se verificando tal aumento com a micorriza o. No amendoim forrageiro, observou-se redu o destes minerais com a aplica o de N, ao passo que a micorriza o resultou em aumento dos mesmos. Por outro lado, a aduba o fosfatada provocou pequeno aumento no acúmulo de minerais na MS da parte aérea do amendoim forrageiro.
Cervical esophagostomy using indwelling catheter for analysis of gastric physiology in dogs
Cavalcanti, Carlos Augusto de Oliveira;Andreollo, Nelson Adami;Santos, William Adalberto dos;
Acta Cirurgica Brasileira , 2005, DOI: 10.1590/S0102-86502005000500012
Abstract: purpose: to describe the technique of cervical esophagostomy with indwelling catheter for the collection of secretions and study of gastric emptying. methods: esophagostomy was performed in 14 dogs, and a tube was introduced into the animals' stomachs and maintained pervious for eight weeks. the technique consisted of opening the left lateral surface of the neck for insertion of the tube, with the aid of a mixter forceps, and the subsequent subcutaneous tunneling and exteriorization of the catheter on the dorsum of the animals. results: successful use of the tube and its total permeability were observed in 13 animals (92.8%). in one animal, the tube was obstructed by hair, and it was replaced. formation of a small abscess occurred in 3 animals (21.4%), followed by spontaneous drainage. no accidents occurred, and the bleeding was minimal. no deaths were registered. conclusion: the described technique can be used in similar researches, as well as for animal feeding in investigations of the upper digestive tract, after esophageal resection and in major neck surgeries.
Cervical esophagostomy using indwelling catheter for analysis of gastric physiology in dogs
Cavalcanti Carlos Augusto de Oliveira,Andreollo Nelson Adami,Santos William Adalberto dos
Acta Cirurgica Brasileira , 2005,
Abstract: PURPOSE: To describe the technique of cervical esophagostomy with indwelling catheter for the collection of secretions and study of gastric emptying. METHODS: Esophagostomy was performed in 14 dogs, and a tube was introduced into the animals' stomachs and maintained pervious for eight weeks. The technique consisted of opening the left lateral surface of the neck for insertion of the tube, with the aid of a Mixter forceps, and the subsequent subcutaneous tunneling and exteriorization of the catheter on the dorsum of the animals. RESULTS: Successful use of the tube and its total permeability were observed in 13 animals (92.8%). In one animal, the tube was obstructed by hair, and it was replaced. Formation of a small abscess occurred in 3 animals (21.4%), followed by spontaneous drainage. No accidents occurred, and the bleeding was minimal. No deaths were registered. CONCLUSION: The described technique can be used in similar researches, as well as for animal feeding in investigations of the upper digestive tract, after esophageal resection and in major neck surgeries.
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