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Search Results: 1 - 10 of 4513 matches for " Willian Moura;Gaglianone "
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Comportamento de abelhas visitantes florais de Lecythis lurida (Lecythidaceae) no norte do estado do Rio de Janeiro
Aguiar, Willian Moura;Gaglianone, Maria Cristina;
Revista Brasileira de Entomologia , 2008, DOI: 10.1590/S0085-56262008000200007
Abstract: this study describes and analyses the behavior of l. lurida flower visitors in fragments of tabuleiro lowland forest. this monoecious species flowered from october to january. the flowers opened between 5:30 and 10:00 a.m. and floral anthesis did not exceed one day. standardizing samples on flowers resulted in 172 bees, belonging to ten genera and 18 species. epicharis flava (42,3%), xylocopa frontalis (16,3%) and eufriesea surinamensis (11,6%) performed the highest relative frequencies, mainly occuring between 7:00 and 11:00a.m. centridini, euglossina and xylocopini bees took nectar on flowers and were considered effective pollinators. megachile collected pollen and also was potential pollinator. oxaea flavescens acted as nectar thief by piercing the flower hood. experiments of spontaneous autopollination indicated no fruit set and low fruit set (0,48%) was observed in flowers under natural conditions. as discussed for other zygomorphic flowers of lecythidaceae, the complex floral morphology restrict visitors to large or robust bees that can get into the flower through the floral hood. nevertheless centridini was the main pollinator group of l. lurida, which differs from the pollinators indicated in other studies on lecythidaceae in the amazonian region.
Euglossine bee communities in small forest fragments of the Atlantic Forest, Rio de Janeiro state, southeastern Brazil (Hymenoptera, Apidae)
Aguiar, Willian Moura de;Gaglianone, Maria Cristina;
Revista Brasileira de Entomologia , 2012, DOI: 10.1590/S0085-56262012005000018
Abstract: euglossine bee communities in small forest fragments of the atlantic forest, rio de janeiro state, southeastern brazil (hymenoptera, apidae). euglossine bees are important pollinators in forests and agricultural areas. although the structure of their communities is critically affected by anthropogenic disturbances, little is known about these bees in small forest fragments. the objectives of this study were to analyze the composition, abundance, and diversity of euglossine bee species in nine small fragments of different phytophysiognomies of the atlantic forest in southeastern brazil, and to identify the environmental variables that may be related to the species composition of these communities. males were sampled quarterly from may 2007 to may 2009 with aromatic traps containing methyl cinnamate, vanillin, eucalyptol, benzyl acetate, and methyl salicylate. a total of 1558 males, belonging to 10 species and three genera of euglossina were collected. the richness ranged from five to seven species per fragment. euglossa cordata, e. securigera, eulaema nigrita e e. cingulata were common to all fragments studied. the diversity differed significantly among areas, ranging from h' = 1.04 to h' = 1.65. the precipitation, phytophysiognomy, and altitude had the highest relative importance over the species composition variation. the results presented in this study demonstrate that small forest fragments are able to support populations of euglossine bee species, most of which are widely distributed and reportedly tolerant to open and/or disturbed areas and suggest that the conservation of such areas is important, particularly in areas that are regenerating and in regions with agricultural matrices where these bees can act as important pollinators
Comunidade de abelhas euglossina (Hymenoptera: Apidae) em remanescentes de mata estacional semidecidual sobre tabuleiro no estado do Rio de Janeiro
Aguiar, Willian M.;Gaglianone, Maria C.;
Neotropical Entomology , 2008, DOI: 10.1590/S1519-566X2008000200002
Abstract: this work aimed at describing and analyzing structural and temporal parameters of communities of euglossina in remnants of lowland forest on tertiary tabuleiro in the north rio de janeiro state in areas with different conservation status and anthropic influences. chemical bait traps were installed from november/04 to november/05, from 8 am to 3 pm, in two sub-areas (burned and preserved) of mata do carv?o (1053 ha) and mata do funil (135 ha). we collected 2,060 individuals of 11 species distributed in three genera in the burned sub-area, 894 individuals of nine species and three genera in the preserved sub-area and 1,115 individuals of 10 species distributed in four genera in mata do funil. the composition of species did not differ among the areas (mrpp, a = -0.015; p = 0.71). the diversity (h?) obtained in the sub-area burned (h? = 1.14) and preserved (h? = 1.12) was significantly higher than that described for mata do funil (h? = 0.98). two peaks of abundance were observed, the larger one in the dry season. great dominance of euglosssa cordata (l.) (d = 0, 54) was observed in the sub-area burned and of eulaema nigrita lepeletier (d = 0, 55) in mata do funil; both species were favored for open or disturbed environments. the smaller fragment presented the lowest value of diversity, suggesting the effect of the lost of area on the community of euglossina. moreover, disturbed areas (burned) can be benefited if in connection with areas in better preservation condition.
Pesquisa-interven o em um CAPSad – Centro de Aten o Psicossocial álcool e Drogas
Ricardo Wagner Machado Silveira,Diogo Rezende,Willian Araújo Moura
Gerais : Revista Interinstitucional de Psicologia , 2010,
Abstract: This article will outline a process of research-intervention carried out over a year in a Psychosocial Care Center forAlcohol and Drugs (CAPSad). This research took place on practices based on concepts that involve the InstitutionalAnalysis, thus advocating a job analysis of the complex network of knowledge and power relations present in suchservice, as well as of the institutional dynamics which causes productive or instituting forces to circulate there, inaddition to forces which tend to perpetuate themselves to what is established. We have used the method ofresearch-intervention, for it is a method of research which dissociates the act of researching from the act ofintervening, causing the route of this research to be traced in the processuality and complexity of the eventsinvestigated. In this investigative-intervening process, the clinic of the Damage Reduction became an issue, for it isa guideline for the public policies in this area.This article will outline a process of research-intervention carried out over a year in a Psychosocial Care Center forAlcohol and Drugs (CAPSad). This research took place on practices based on concepts that involve the InstitutionalAnalysis, thus advocating a job analysis of the complex network of knowledge and power relations present in suchservice, as well as of the institutional dynamics which causes productive or instituting forces to circulate there, inaddition to forces which tend to perpetuate themselves to what is established. We have used the method ofresearch-intervention, for it is a method of research which dissociates the act of researching from the act ofintervening, causing the route of this research to be traced in the processuality and complexity of the eventsinvestigated. In this investigative-intervening process, the clinic of the Damage Reduction became an issue, for it isa guideline for the public policies in this area.
Nidifica??o e forrageamento de Centris (Ptilotopus) scopipes Friese (Hymenoptera, Apidae)
Gaglianone, Maria Cristina;
Revista Brasileira de Zoologia , 2001, DOI: 10.1590/S0101-81752001000500008
Abstract: centris (ptilotopus) are large bees and important pollinators in the neotropical region. its biology and behavior is still poorly known and only a few observations have been published. in this paper, observations on the biology of c. (ptilotopus) scopipes friese, 1899, a species that occurs in the "cerrados" of brazil, are presented. the study was conducted in the esta??o ecológica de jataí, in luiz ant?nio, s?o paulo, during the active period of the adults (november through april). females collected pollen from flowers of solanaceae and caesalpiniaceae, by vibration, and floral oils from malpighiaceae belonging to the genera byrsonima, banisteriopsis, stigmaphyllon and peixotoa. floral resources are carried in the hind leg scopae to the nests, which are excavated in the walls of epigeous nests of the termite procornitermes araujoi emerson, 1952 (termitidae, nasutitermitinae). the main tunnel entered the termite nest at an ascending angle ending in a vestibulum. two parallel, vertical burrows forming linear series of cells descended from the vestibulum. the upper cell (the nearest to the nest entrance) was filled with soil. this might represent a protection against parasites. during the study, one female of acanthopus excellens schrottky, 1902 (apidae, ericrocidini), a cleptoparasitic bee, was captured when leaving one of the nests. a male of c. scopipes emerged eleven months after cell closure, suggesting a univoltine cycle for this species.
Behavior on flowers, structures associated to pollen transport and nesting biology of Perditomorpha brunerii and Cephalurgus anomalus (Hymenoptera: Colletidae, Andrenidae)
Gaglianone,Maria Cristina;
Revista de Biología Tropical , 2000,
Abstract: nesting and foraging behavior were studied in cephalurgus anomalus and perditomorpha brunerii, two oligolectic bee species on malvaceae flowers, in the university of s?o paulo campus, ribeir?o preto, brazil. bees were monitored on flowers of sida, malvastrum, gaya and wissadula. perditomorpha brunerii females collect pollen with the forelegs and abdomen to transport it in short-branched hairs on the hind tibia and metasomal sterna; males patrol flowers and spend the night in closed flowers of sida cerradoensis and sida sp. c. anomalus females lean the dorsal region of the body against the petals and collect pollen with the forelegs, accumulating the grains on the mesepisterna before placing them into sparse unbranched hairs on the anterior outer side of the hind tibiae; males patrol and wait for females in flowers, where the copulate throughout the foraging season. both species nest in the soil among the host plants. p. brunerii bees build solitary nests; whereas in c. anomalus one or more foraging females are associated with an individual nest. the nests, in both species, consist of a descent straight main tunnel and cells arranged singly and horizontally at the end of the branches, which are filled with soil. the efficient foraging behavior, location of the nests among the host plants and scopal setae that allow the transport of large pollen grains in large amounts indicate an intimate association between these two bee species and malvaceae flowers.
Behavior on flowers, structures associated to pollen transport and nesting biology of Perditomorpha brunerii and Cephalurgus anomalus (Hymenoptera: Colletidae, Andrenidae)
Maria Cristina Gaglianone
Revista de Biología Tropical , 2000,
Abstract: Nesting and foraging behavior were studied in Cephalurgus anomalus and Perditomorpha brunerii, two oligolectic bee species on Malvaceae flowers, in the University of S o Paulo campus, Ribeir o Preto, Brazil. Bees were monitored on flowers of Sida, Malvastrum, Gaya and Wissadula. Perditomorpha brunerii females collect pollen with the forelegs and abdomen to transport it in short-branched hairs on the hind tibia and metasomal sterna; males patrol flowers and spend the night in closed flowers of Sida cerradoensis and Sida sp. C. anomalus females lean the dorsal region of the body against the petals and collect pollen with the forelegs, accumulating the grains on the mesepisterna before placing them into sparse unbranched hairs on the anterior outer side of the hind tibiae; males patrol and wait for females in flowers, where the copulate throughout the foraging season. Both species nest in the soil among the host plants. P. brunerii bees build solitary nests; whereas in C. anomalus one or more foraging females are associated with an individual nest. The nests, in both species, consist of a descent straight main tunnel and cells arranged singly and horizontally at the end of the branches, which are filled with soil. The efficient foraging behavior, location of the nests among the host plants and scopal setae that allow the transport of large pollen grains in large amounts indicate an intimate association between these two bee species and Malvaceae flowers.
HIGH ECCENTRICITY EOQ TOTAL COST FUNCTION YIELDS JIT RESULTs
Willian Roach
Revista de Administra??o FACES Journal , 2010,
Abstract: No estoque de bens perecíveis, o custo de armazenamento H é muito maior do que o previsto na fórmula clássica do lote econ mico do pedido (EOQ). Para bens perecíveis, a fun o custo total no EOQ é um pico e n o uma reta horizontal. Esta forma pontiaguda leva o modelo EOQ a produzir entregas just in time (JIT) - resultados semelhantes. O efeito pontiagudo (excentricidade) da curva de custo total do lote econ mico EOQ depende apenas do custo de armazenamento (H) e n o da demanda anual (D) ou do custo do pedido (S). D e S determinam o nível (altura) da curva de custo total do estoque (TC), mas n o a forma.
Los temas de la discusión pública en las elecciones presidenciales chilenas 2005: relaciones entre las agendas de los medios y las agendas mediatizadas de los candidatos y del gobierno
Willian PORATH
América Latina Hoy , 2009,
Abstract: RESUMEN: El objetivo del presente trabajo es analizar cuáles fueron los temas de la discusión pública que predominaron en los medios de comunicación chilenos durante la campa a presidencial de fines de 2005, y cuáles fueron los temas con que los candidatos y el gobierno aparecieron posicionados en ellos. Utilizando el marco metodológico y conceptual de la teoría de la agenda setting se analizan las interrelaciones entre las agendas de estos tres actores con el objetivo de describir de qué manera se articuló la discusión pública. Se realizó un análisis de contenido cuantitativo de los dos principales diarios y de los noticieros centrales de tres canales nacionales. Los resultados muestran una pauta distinta para la televisión y la prensa escrita, siendo esta última la que está más cerca de los temas con los que los actores políticos aparecen en los medios. El estudio también revela que el entonces presidente Ricardo Lagos y sus voceros muestran en los medios agendas distintas. En cuanto a los candidatos, en un marco de grandes similitudes, tiende a darse un eje de discusión entre la candidata oficialista Michelle Bachelet, por un lado, y sus tres contendores, por otro, los que aparecen con discursos homogeneizados. ABSTRACT: The purpose of this paper is to show the public discussion topics that dominated the mass media during the last presidential election campaign in Chile in late 2005. It also intends to determine the topics for which the candidates and the government appeared in the media. Agenda-setting’s conceptual theory and methodological frame were employed to analyze the inter-relations among the agendas of these three public actors with the aim to describe how the public discussion was articulated. A quantitative content analysis was carried out on the two most influential newspapers and the three most important television newscasts. The results show a difference in television’s agenda compared with newspapers’. In fact, the papers’ agenda is closer to the topics, which the political actors appear in the media. The results also reveal that President Ricardo Lagos and his speakers appear with different agendas in the media. The candidates share many similarities, but while a discussion is evident between the government’s candidate Michelle Bachelet and her three contenders, the latter tend to appear in the media with a homogenous agenda.
Compreens es de conceitos de cálculo diferencial no primeiro ano de matemática - uma abordagem integrando oralidade, escrita e informática
Willian Beline
Bolema: Boletim de Educa??o Matemática , 2008,
Abstract:
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