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Urban occupation in Rio das Ostras, RJ, Brazil: defining elements and its impacts on water resources Ocupa o Urbana de Rio das Ostras: Elementos Definidores e os Impactos nos Recursos Hídricos
Maria Laura Monnerat Gomes
Boletim do Observatório Ambiental Alberto Ribeiro Lamego , 2010,
Abstract: In the 50′s Rio das Ostras territory began to be divided by lots, mainly because of tourism activities there held. Since the 90′s, a great demographic boom has occurred in the region due to oil and gas exploitation in Campos Basin, and also to the installations of onshore support facilities for off shore petroleum production in Macaé. Disordered and unplanned human occupation together with unsustainable natural resources appropriation may lead to the exhaustion of native natural ecosystems. Th is article focus on the defining elements of urban occupation in the studied city, relating them to impacts on water resources. Na década de 1950, o território de Rio das Ostras come ou a ser dividido em loteamentos, voltados principalmente para o turismo. A partir da década de 1990, ocorre o grande impulso demográfi co para a regi o, principalmente devido à descoberta de petróleo na Bacia de Campos e a instala o da Petrobras em Macaé. A ocupa o humana desordenada, sem planejamento e obediência às legisla es ambiental e urbana, aliada à apropria o n o sustentável dos recursos naturais, leva ao esgotamento dos ecossistemas naturais existentes. Este artigo aborda os elementos defi nidores da ocupa o urbana e os impactos na bacia do rio das Ostras.
An effective single-hop distributed hash table with high lookup performance and low traffic overhead
Luiz Monnerat,Claudio L. Amorim
Computer Science , 2014,
Abstract: Distributed Hash Tables (DHTs) have been used in several applications, but most DHTs have opted to solve lookups with multiple hops, to minimize bandwidth costs while sacrificing lookup latency. This paper presents D1HT, an original DHT which has a peer-to-peer and self-organizing architecture and maximizes lookup performance with reasonable maintenance traffic, and a Quarantine mechanism to reduce overheads caused by volatile peers. We implemented both D1HT and a prominent single-hop DHT, and we performed an extensive and highly representative DHT experimental comparison, followed by complementary analytical studies. In comparison with current single-hop DHTs, our results showed that D1HT consistently had the lowest bandwidth requirements, with typical reductions of up to one order of magnitude, and that D1HT could be used even in popular Internet applications with millions of users. In addition, we ran the first latency experiments comparing DHTs to directory servers, which revealed that D1HT can achieve latencies equivalent to or better than a directory server, and confirmed its greater scalability properties. Overall, our extensive set of results allowed us to conclude that D1HT can provide a very effective solution for a broad range of environments, from large-scale corporate datacenters to widely deployed Internet applications.
Iris colour as an indicator of age feature in female Brazilian tanagers (Passeriformes: Emberizidae) confirmed by a molecular sexing technique
Monnerat Nogueira,Denise; S. Alves,Maria Alice;
Revista de Biología Tropical , 2008,
Abstract: the brazilian tanager, ramphocelus bresilius is an endemic species from brazil that is sexually dimorphic in adult plumage. young males are similar to adult and young females until their second year. adults and young females are not distinguishable in plumage. we tested whether iris colour can be used to separate adult females from immature females. we used for the first time the molecular sexing technique based on chd-genes to confirm the sex of the individuals classified as "female plumage with red iris", and to identify the sex of individuals classified as "female plumage and brown iris". the adult males were used as a positive control. dna samples from 190 individuals were analysed. the sizes of the pcr products were identified as 350 base pairs (bp) for chd-z and 388 bp for chd-w. we confirmed that adult females have a red iris and the young females a brown iris. we could also separate young males and females which present the same iris colour and plumage. although there are indications that the iris colour can be used by birds to identify the adults in co-operative breeding species such as the brazilian tanager, more behavioural data are required to understand the role of iris coloration in this species. rev. biol. trop. 56 (4): 1629-1633. epub 2008 december 12.
Iris colour as an indicator of age feature in female Brazilian tanagers (Passeriformes: Emberizidae) confirmed by a molecular sexing technique
Denise Monnerat Nogueira,Maria Alice S. Alves
Revista de Biología Tropical , 2008,
Abstract: The Brazilian tanager, Ramphocelus bresilius is an endemic species from Brazil that is sexually dimorphic in adult plumage. Young males are similar to adult and young females until their second year. Adults and young females are not distinguishable in plumage. We tested whether iris colour can be used to separate adult females from immature females. We used for the first time the molecular sexing technique based on CHD-genes to confirm the sex of the individuals classified as "female plumage with red iris", and to identify the sex of individuals classified as "female plumage and brown iris". The adult males were used as a positive control. DNA samples from 190 individuals were analysed. The sizes of the PCR products were identified as 350 base pairs (bp) for CHD-Z and 388 bp for CHD-W. We confirmed that adult females have a red iris and the young females a brown iris. We could also separate young males and females which present the same iris colour and plumage. Although there are indications that the iris colour can be used by birds to identify the adults in co-operative breeding species such as the Brazilian tanager, more behavioural data are required to understand the role of iris coloration in this species. Rev. Biol. Trop. 56 (4): 1629-1633. Epub 2008 December 12. El ave Ramphocelus bresilius es una especie endémica de Brasil con dimorfismo sexual en el plumaje del adulto. Los machos jóvenes son similares a las hembras adultas y jóvenes hasta el segundo a o de vida. Adultos y hembras jóvenes son indistinguibles por el plumaje. Evaluamos si el color del iris puede ser utilizado para distinguir hembras adultas de hembras inmaduras. Utilizamos por primera vez la técnica molecular de identificación de sexos basada en los genes CHD para confirmar el género de individuos clasificados como plumaje femenino con iris rojo, y para identificar el sexo de los individuos clasificados como plumaje femenino e iris marrón. Usamos machos adultos como control. Analizamos muestras de DNA de 190 individuos. Los tama os de los productos del PCR fueron identificados como 350 pares de bases (pb) para CHD-Z y 388 pb para CHD-W. Pudimos confirmar que las hembras adultas presentan iris rojo y las hembras jóvenes iris marrón. También pudimos distinguir machos jóvenes de hembras, que presentan el mismo color de iris y plumaje.
The Other-Race Effect in Caucasian and Japanese-Descendant Children in Brazil: Evidence of Developmental Plasticity  [PDF]
Ana Carolina Monnerat Fioravanti-Bastos, Alberto Filgueiras, J. Landeira-Fernandez
Psychology (PSYCH) , 2014, DOI: 10.4236/psych.2014.519210
Abstract: The Other-Race Effect has been confirmed by several experimental studies, in which the individual has greater difficulty in recognizing the faces of races that are different from their own. Few studies have investigated this effect during the development of the face processing system. The aim of this study was to investigate the development of the Other-Race Effect in Caucasian and Japanese-descendants children born and living in Brazil. Seventy-four children, split into two age groups (5 - 7 and 9 - 11 years of age), were tested. Japanese-descendant children did not present the effect in favor of their own-race faces, whereas Caucasian children demonstrated the effect in both age groups. This indicates that the effect is present early in the development of face recognition and that contact with the faces of another race during childhood dissipates it. These findings suggest that experience with faces from the children’s visual context is crucial for shaping face processing.
Diagnosis of Boron Deficiency in Green Dwarf Coconut Palm  [PDF]
Leandro Glaydson da Rocha Pinho, Pedro Henrique Monnerat, André Assis Pires, Marta Simone Mendon?a Freitas, Claudio Roberto Marciano
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.61015
Abstract: 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.
Biology of Diadegma sp. (Hymenoptera: Ichneumonidae), a parasitoid of Plutella xylostella (L.) (Lepidoptera: Yponomeutidae), from Reunion Island
MONNERAT, R.G.;KIRK, A.A.;BORDAT, D.;
Neotropical Entomology , 2002, DOI: 10.1590/S1519-566X2002000200015
Abstract: the genus diadegma have some species able to parasite plutella xylostella (l.) (dbm). laboratory studies were carried out on a diadegma sp. from reunion island to elucidate its ability to parasite dbm larvae, and to determine the influence of the temperature on its fecundity, longevity, oviposition and the consumption of cabbage leaves by parasitized dbm larvae. parasitism rates were close to 70% for the l2 and l3 instar, and 53% for the l4. at 15°c, there were no progeny. at 20°c and 25°c, the percentage of parasitism was near 70%. at 29°c, the percentage parasitism was similar but the number of males produced was higher. parasitized dbm larvae consumed 35% less leaf surface than non parasitized larvae. this diadegma sp. is a possible candidate for introduction into tropical areas, where no tropically adapted diadegma species are known and could complement bacillus thuringiensis treated systems.
Exporta??o de nutrientes nos tubérculos de batata em fun??o de doses de sulfato de potássio
Júnior, Roberto Anjos Reis;Monnerat, Pedro Henrique;
Horticultura Brasileira , 2001, DOI: 10.1590/S0102-05362001000300015
Abstract: removal of nutrients by potato tubers was evaluated in response to the application of potassium sulphate to potato crops. potassium was applied at six different rates (0; 60; 120; 240; 480 and 960 kg ha-1 of k2o), as k2so4 and placed during planting time in the furrow. two plants/plot were sampled 20 days after plant emergence (dae), 48 dae and at harvest to evaluate n, p, k, ca, mg, s, cl, mn and zn contents and removal by the tubers. a factorial (6x3), with six k2o rates and three sampling times was set up in a randomized block design with four replications. the application of k2so4 increased cl, mn and zn concentration in potato tuber. increasing k2so4 fertilization affected potato tuber removal of nutrients only at harvest, when the application of potassium fertilizer increased the removal of k, ca, mg, s, mn and cl. at maximum tuber yield, nutrient removal were: 99.1 kg ha-1 n; 14.2 kg ha-1 p; 118.5 kg ha-1 k; 2.10 kg ha-1 ca; 6.50 kg ha-1 mg; 9.28 kg ha-1 s; 8.18 kg ha-1 cl; 47.8 g ha-1 mn and 102.5 g ha-1 zn. nutrient removal by tubers represents an important source of nutrient loss from the soil, and its evaluation should be used to calibrate fertilizer recommendations.
Eosinophilic esophagitis: manometric and pHmetric findings
Monnerat, Monica Maria Cardoso;Lemme, Eponina Maria De Oliveira;
Arquivos de Gastroenterologia , 2012, DOI: 10.1590/S0004-28032012000200004
Abstract: context: eosinophilic esophagitis is an entity characterized by an esophageal inflammatory infiltrate of eosinophils, manifested by dysphagia, intermittent food impactions and symptoms similar to gastroesophageal reflux disease (gerd), that predominantly affects young adults. there may be association of eosinophilic esophagitis with gerd, and motor abnormalities have been described. objective: the main objectives of this study are to describe the findings at esophageal manometry and ph monitoring in patients with eosinophilic esophagitis. methods: cross-sectional study of 20 patients with a diagnosis of eosinophilic esophagitis, submitted to esophageal manometry and 24h ph monitoring. were analysed the manometric changes and the presence of abnormal reflux on ph monitoring. results: twenty patients (15 men, 5 women) had a mean age of 29 years. motility disorders were found in 25% (5/20) patients with ineffective esophageal motility being the most common finding. ph monitoring revealed abnormal reflux on 25%, without any relationship with manometric findings. conclusions: manometric abnormalities were observed in 25% of patients and abnormal reflux on ph monitoring also in 25%. this study showed no relationship between abnormal reflux and the presence of manometric changes.
Norms establishment of the Diagnosis and Recommendation Integrated System (DRIS) for nutritional diagnosis of sugarcane
Reis Junior, Roberto dos Anjos;Monnerat, Pedro Henrique;
Pesquisa Agropecuária Brasileira , 2003, DOI: 10.1590/S0100-204X2003000200015
Abstract: the objectives of this study were to establish dris norms for sugarcane crop, to compare mean yield, foliar nutrient contents and variance of nutrient ratios of low- and high-yielding groups and to compare mean values of nutrient ratios selected as the dris norms of low- and high-yielding groups. leaf samples (analyzed for n, p, k, ca, mg, s, cu, mn and zn contents) and respective yields were collected in 126 commercial sugarcane fields in rio de janeiro state, brazil and used to establish dris norms for sugarcane. nearly all nutrient ratios selected as dris norms (77.8%) showed statistical differences between mean values of the low- and high-yielding groups. these different nutritional balances between the low- and high-yielding groups indicate that the dris norms developed in this paper are reliable. the dris norms for micronutrients with high s2l /s2h ratio and low coefficient of variation found can provide more security to evaluate the micronutrient status of sugarcane.
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