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Search Results: 1 - 10 of 8573 matches for " Luciana Leal "
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Custos de implanta??o e manuten??o da arboriza??o de ruas da cidade de Curitiba, PR
Leal, Luciana;Biondi, Daniela;Rochadelli, Roberto;
Revista árvore , 2008, DOI: 10.1590/S0100-67622008000300016
Abstract: the aim of this research was to obtain the urban street trees costs in its different phases of development, using the street tree program of curitiba as a study case. the tree value at age n was obtained by the sum of costs of tree implantation and maintenance, considering five cost centers: seedling production, planting and replanting, pruning, removal and planning and control. the costs were divided in nine species groups formed according to growing rate in the nursery and size. the species with the highest costs were those of slow growth rate in the nursery and large size. the valuation of a tree through its costs, which can be obtained at municipal institutions, is feasible and can be easily adapted to other brazilian cities.
Fenologia do florescimento e frutifica o de espécies nativas dos Campos = Flowering phenology and fruit set of native species of the Campos ecosystem
Daniela Biondi,Luciana Leal,Antonio Carlos Batista
Acta Scientiarum : Biological Sciences , 2007,
Abstract: Este trabalho teve como objetivo estudar a fenologia de 12 espécies ocorrentes no ecossistema de Campos no Estado do Paraná. A pesquisa foi realizada no Campus III, da Universidade Federal do Paraná, na cidade de Curitiba. As espécies selecionadas para a avalia o fenológica foram: Aspilia montevidensis (Sprengel) Kuntze, Cacalia cognata (Less.) Kuntze, Campovassouria bupleurifolia (DC.) R. M. King & H. Rob., Campuloclinium macrocephalum (Less.) DC., Chromolaena ascendens (Sch. Bip. ex. Baker) R. M. King & H. Rob., Lessingianthus glabratus (Less.) H. Rob. (Asteraceae), Eryngium sanguisorba Cham. &Schtdl. (Apiaceae), Moritzia dusenii Johnston (Boraginaceae), Petunia linoides Sendtn. (Solanaceae), Senna neglecta (Vogel) H. S. Irwin & Barneby (Fabaceae), Tibouchina gracilis (Bonpl.) Cogn. (Melastomataceae) e Verbena rigida Spreng (Verbenaceae). A metodologiautilizada foi a avalia o qualitativa dos dados fenológicos (flora o e frutifica o), observados quinzenalmente, durante o ano de 2004. As variáveis climáticas: temperatura, umidade relativa do ar, precipita o e fotoperíodo foram obtidas diariamente para verificar sua rela o com as fenofases. Os resultados indicaram que, das espécies estudadas, seis tiveram fase fenológica reprodutiva entre janeiro e agosto, enquanto as demais tiveram a interrup o do período reprodutivo durante o inverno, com exce o de Aspilia montevidensis que apresentou flora o e frutifica o durante todo o ano. The aim of this work is to study the phenology of twelve species that occur in “Campos” ecosystem in Paraná state. This research was carried out at the Universidade Federal do Paraná, Campus III, in Curitiba city. The selected species for phenologic evaluation were: Aspilia montevidensis (Sprengel) Kuntze, Cacalia cognata (Less.) Kuntze, Campovassouria bupleurifolia (DC.) R. M. King & H. Rob., Campuloclinium macrocephalum (Less.) DC., Chromolaena ascendens (Sch. Bip. ex. Baker) R. M. King & H. Rob., Lessingianthus glabratus (Less.) H. Rob. (Asteraceae), Eryngium sanguisorba Cham. & Schtdl.(Apiaceae), Moritzia dusenii Johnston (Boraginaceae), Petunia linoides Sendtn. (Solanaceae), Senna neglecta (Vogel) H. S. Irwin & Barneby (Fabaceae), Tibouchina gracilis (Bonpl.) Cogn.(Melastomataceae) and Verbena rigida Spreng (Verbenaceae). The applied methodology was the qualitative evaluation of the phenological data (florescence and fruiting) observed every fifteen days during the year 2004. The climatic variables as temperature, relative air humidity, precipitation and photoperiod were obtained daily to verify its relation with th
Cutting diameter influence in the rooting of Tecoma stans (L.) Juss. ex Kunth/ Influência do diametro de estacas no enraizamento de Tecoma stans (L.) Juss. ex Kunth
Daniela Biondi,Edgard Alfredo Bredow,Luciana Leal
Semina : Ciências Agrárias , 2008,
Abstract: Tecoma stans (L.) Juss. ex Kunth (Bignoniaceae) is a native tree from the Americas and Antilles and was introduced in Brazil for ornamental reasons, but became an invasive species in degraded areas and pastures in the south region. In Paraná State it is considered a noxious invasive species and its entrance, planting, transport, production and the commerce of its seedlings, seeds, pieces of stem and roots are forbidden. The aim of this research was to prove the rooting ability potential of hardwoody stem cuttings of Tecoma stans with different diameter thickness. The experiment was conducted in a completely randomized design with three treatments: T1 = stem diameter from 0.60 – 0.80 cm, T2 =stem diameter from 0.81 – 1.00 cm and T3 = stem diameter from 1.01 – 1.20 cm. The evaluated variables were: rooting rate, the number of sprouting per cutting, length of sprouting per cutting (cm), cutting rate with more than ten roots and length of the three larger roots formed per cutting (cm). All the cuttings showed 100% of rooting. The T2 and T3 treatments differed statistically from T1 treatment for sprouting length, while T2 differed from the others, for the roots length. The easiness of this species to propagate in a vegetative way reinforces and proves its invasive characteristics. Tecoma stans (L.) Juss. ex Kunth (Bignoniaceae), árvore nativa das Américas e Antilhas, foi introduzida no Brasil para fins ornamentais e tornou-se uma espécie invasora de áreas degradadas e pastagens na regi o sul. No Estado do Paraná é considerada uma planta invasora nociva, proibida a sua entrada, o plantio, o transporte, a produ o e o comércio de mudas, sementes, peda os de caules e raízes. O trabalho teve como objetivo comprovar o potencial de enraizamento de estacas caulinares lenhosas de Tecoma stans com diferentes diametros de espessura. O delineamento utilizado foi inteiramente casualizado com três tratamentos: T1 = diametro da estaca de 0,60 – 0,80 cm; T2 = diametro da estaca de 0,81 – 1,00 cm e T3 = diametro da estaca de 1,01 – 1,20 cm. As variáveis analisadas foram: percentagem de estacas enraizadas, número de brota es por estaca, comprimento das brota es (cm), percentagem de estacas com presen a de mais de 10 raízes e comprimento das 3 maiores raízes por estaca (cm). Todas as estacas apresentaram 100% de enraizamento. Os tratamentos T2 e T3 diferiram estatisticamente do tratamento T1 para o comprimento das brota es, enquanto o T2 diferiu dos demais para o comprimento das raízes. A facilidade desta espécie em propagar-se vegetativamente refor a e comprova a sua cara
Resposta da comunidade de formigas aos atributos dos fragmentos e da vegeta??o em uma paisagem da Floresta Atlantica nordestina
Gomes, Juliana P;Iannuzzi, Luciana;Leal, Inara R;
Neotropical Entomology , 2010, DOI: 10.1590/S1519-566X2010000600008
Abstract: the objective of this study was to determine the effects of forest fragmentation on ant richness in a landscape of atlantic forest in northeast brazil. more specifically, the ant richness was related to the attributes of fragments (area and distance from the fragment central point to the edge), landscape (forest cover surrounding the fragments), and tree community (plant density, richness, and percentage of shade tolerant species). the surveys were carried out in 19 fragments located in alagoas state from october 2007 to march 2008. samples were collected through a 300 m transect established in the center of each fragment, where 30 1-m2 leaf litter samples were collected at 10 m intervals. a total of 146 ant species was collected, which belonged to 42 genera, 24 tribes and nine subfamilies. the attributes of fragments and landscape did not influence ant richness. on the other hand, tree density explained ca. 23% of ant richness. in relation to functional groups, both density and richness of trees explained the richness of general myrmicines (the whole model explained ca. 42% of the variation in this group) and percentage of shade tolerant trees explained the richness of specialist predator ants (30% for the whole model). these results indicate that ant fauna is more influenced by vegetation integrity than by fragment size, distance to edge or forest cover surrounding fragments.
Temporal resolution with click and pure tone stimuli in youngsters with normal hearing sensitivity
Sousa, Luciana Leal de;Dias, Karin Ziliotto;Pereira, Liliane Desgualdo;
Jornal da Sociedade Brasileira de Fonoaudiologia , 2012, DOI: 10.1590/S2179-64912012000200014
Abstract: purpose: to assess the auditory ability of temporal resolution and to compare the random gap detection test (rgdt) versions with pure tone and clicks stimuli. methods: participants were 40 young individuals of both genders with ages between 18 and 25 years, and normal hearing thresholds for the sound frequencies of 250 hz to 8 khz. initially, participants were submitted to the basic audiological evaluation. then they underwent the rgdt with pure tone and clicks stimuli. finally, we obtained the temporal acuity threshold, which corresponds to the shorter silence interval in which the patient perceives two sounds, for each type of stimulus, called final temporal acuity threshold for pure tones (mean of the thresholds obtained for 500 hz, 1k, 2k and 4 khz), and temporal acuity threshold for clicks. results: the mean temporal acuity threshold for the sound frequency of 500 hz was 7.25 ms; for the frequency of 1 khz was 7.25 ms; for 2 khz was 6.73 ms; for the frequency of 4 khz was 6.03 ms. the final temporal acuity threshold was 6.72 ms. the mean temporal acuity threshold for clicks was 6.43 ms. no difference was found between the temporal acuity thresholds obtained with pure tone and clicks stimuli. conclusion: there is no difference in the performance of individuals on the auditory ability of temporal resolution, regardless of the auditory stimulus used.
Valida??o e reprodutibilidade de sinais clínicos no diagnóstico de anemia em crian?as
Leal, Luciana Pedrosa;Osório, M?nica Maria;
Cadernos de Saúde Pública , 2005, DOI: 10.1590/S0102-311X2005000200023
Abstract: this study aimed to assess the validity and reproducibility of clinical signs (palmar and conjunctival pallor) in the diagnosis of anemia in children 6-23 months of age in northeast brazil. this was a cross-sectional study with a sample of 421 children in the child care and pediatric outpatient wards at the mother and child care institute of pernambuco. two examiners evaluated clinical signs using the kappa coefficient, and validation (sensitivity and specificity) was performed using hemoglobin as the standard. clinical signs demonstrated low reproducibility (kappa 0.24-0.25). the highest sensitivity for diagnosing anemia (hb < 11g/dl) and moderate/ severe anemia (hb < 9g/dl), respectively, was provided by combining palmar and conjuntival pallor (39.7% and 53.5%), followed by palmar pallor alone (29.9% and 40.0%). the highest specificity was provided by palmar pallor in the child as compared to the mother (95.5% and 90.1%, hb < 11g/dl and hb < 9g/dl, respectively). sensitivity of clinical signs was better in diagnosing moderate/severe anemia, especially when combining palmar and conjunctival pallor, suggesting that their utilization does not provide a good instrument for diagnosing mild anemia.
Diagnostic accuracy comparison between clinical signs and hemoglobin color scale as screening methods in the diagnosis of anemia in children
Leal, Luciana Pedrosa;Osório, M?nica M.;
Revista Brasileira de Saúde Materno Infantil , 2006, DOI: 10.1590/S1519-38292006000200005
Abstract: objectives: to compare the validity and reproducibility of clinical signs with the world health organization hemoglobin color scale. methods: two hundred six children in the age range of 6-23 months, at the instituto materno infantil prof. fernando figueira, imip, were assessed. two examiners evaluated the clinical signs and the hemoglobin color scale of each child at the different times. the hemoglobin value was used as a standard for validation. results: in more than 90% of cases the agreement between the values of the color scale and the laboratorial hemoglobin was <2 g/dl. between the clinical signs the highest sensitivity level for diagnosing hb<11 g/dl was presented by the hemoglobin color scale (75.7%). for moderate/severe anemia hb<9g/dl the highest sensitivity was shown by combined palmar or conjunctival pallor (74.3%) and by the color scale (52.5%), according to the first and second observer, respectively. the highest specificity level for hb<11 g/dl was presented by palmar pallor in comparison with the mother's palm and conjunctival pallor (100%). for hb<9 g/dl the highest specificity was presented by the hemoglobin color scale (91.9%). conclusions: this study suggests that moderate/severe anemia can be diagnosed either by clinical signs or by the color scale, while, in cases of mild anemia, the better diagnosis tool appears to be the color scale.
Fatores associados à ocorrência de anemia em crian?as menores de seis anos: uma revis?o sistemática dos estudos populacionais
Leal, Luciana Pedrosa;Osório, M?nica Maria;
Revista Brasileira de Saúde Materno Infantil , 2010, DOI: 10.1590/S1519-38292010000400003
Abstract: objectives: to review the articles published between 1997 and 2010 with representative population samples for children under six years, estimating prevalence of anemia and/or iron deficiency and their associated factors by laboratorial analyses of hemoglobin or ferritin. methods: articles were systematically reviewed using the following keywords searched on the pubmed, scielo and lilacs databases: anemia, iron-deficiency; anemia, iron-deficiency/epidemiology; anemia, iron-deficiency/etiology; child, preschool e risk factors. results: factors which presented statistical association to anemia/iron-deficiency included: children's age, maternal scholar, familiar income, diarrhea, geographic area, household wealth index, birth weight, height/age indicator, weight/height indicator, ethnics, sex, iron density and calories from cow milk. children′s age was a common factor in the international and national studies. maternal scholar and socioeconomics and environment factors showed association with anemia in the development regions studies. overweight and passive smoking appear as slow investigated variables. conclusions: study analyzes shows the multiplicity of anemia/iron-deficiency associated factors at different contexts.
Propaga o por sementes de Schlumbergera truncata (Haw.) Moran (flor-de-maio) em diferentes substratos = Propagation by seeds of Schlumbergera truncata (Haw.) Moran (florde- maio) in different substrates
Luciana Leal,Daniela Biondi,José Renato Soares Nunes
Acta Scientiarum : Biological Sciences , 2007,
Abstract: Schlumbergera truncata (Haw.) Moran (Cactaceae), conhecida como flor-demaio, é uma espécie herbácea epífita, nativa no Brasil, muito apreciada como planta ornamental pela beleza de suas flores. Esta espécie multiplica-se por sementes, mas comercialmente é propagada por estacas e enxertia. Este trabalho teve como objetivo avaliar a germina o de quatro variedades de cores desta espécie (rosa, vermelha, branca e amarela) em cinco substratos (vermiculita de granulometria média, xaxim desfibrado, areia, substrato comercial Rendmax Floreiras e mistura de 50% do substrato comercial Rendmax Floreiras + 50% xaxim desfibrado). Os resultados mostraram que a espécie pode ser reproduzida com facilidade por sementes. O substrato comercial Rendmax Floreiras proporcionou os melhores resultados. Schlumbergera truncata (Haw.) Moran (Cactaceae), known as “flor-de-maio”, is a Brazilian endogenous herbaceous epiphytic species, muchappreciated as ornamental for the beauty of its flowers. This species is multiplied by seeds, but commercially it is propagated by cuttings and grafting. The aim of this research was to evaluate the germination of four varieties of colors of this species (pink, red, white and yellow) in five substrates (vermiculite, de-fibered tree ferns, sand, commercial substrate Rendmax Floreiras and a mixture of 50% of the commercial substrate Rendmax Floreiras + 50% tree ferns). The results showed that this species can be easily reproduced by seeds. The commercial substrate Rendmax Floreiras provided the best germination result.
Use of the curves weight versus age in the growth attendance from the suklings assisted at the clinic of child care
Weslla Karla Albuquerque Silva de Paula,Luciana Pedrosa Leal
Revista de Enfermagem UFPE On Line , 2010,
Abstract: Objective: to describe the growth according to the nutritional state from the suklings assisted from a child care’s clinic, using the curves weight versus age proposed by WHO and NCHS. Methods: this is about a descriptive study, from quantitative approach, using the database from 66 infants’ handbooks. Data were analyzed in the software EPI-INFO 6.04d, SPSS 13.0 and Excel program 2003. The study has been approved by the Committee of Ethics in Research from IMIP (protocol number 1066/2007). Results: in the 1st month, the curve of WHO identified 4 (6,1%) low weight’s cases , the one from NCHS, only 1 (1,5%). Concerning to the birth’s weight, among those that were born low weight, 57,1% (4) presented low weight in the first month of life, when appraised for the curve of WHO. Whereas, the appraised infants for the curve of NCHS, 42,9% (3) had already "recovered" the weight until this age. About the feeding type, all the children that were in breastfeeding in this period, were considered with appropriate weight in both curves. Conclusion: The standard curve W x A of WHO was shown more sensitive for identification from weight’s deficits in the first months of life, in relation to NCHS.
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