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Search Results: 1 - 10 of 389333 matches for " Célia L.;Melcher "
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Planktic Cyanobacteria from upper Tietê basin reservoirs, SP, Brazil
Sant'Anna, Célia L.;Melcher, Silvia S.;Carvalho, Maria do Carmo;Gelmego, Marcina P.;Azevedo, Maria Teresa de P.;
Brazilian Journal of Botany , 2007, DOI: 10.1590/S0100-84042007000100002
Abstract: considering the great ecological and sanitary importance of the cyanobacteria and the need of detailed information about these organisms in brazilian water bodies, the present study aims at contributing towards the knowledge of the cyanobacterial flora of five reservoirs belonging to the upper tietê basin, s?o paulo: billings, guarapiranga, jundiaí, pirapora, ponte nova and taia?upeba. in the past several years, these reservoirs have been submitted to severe environmental deterioration and have repeatedly presented cyanobacterial blooms, including those of toxic species. the samples were collected between 1997 and 2003 either with plankton net (20 μm mesh) or van dorn's bottle, and preserved with lugol solution or formaldehyde. some species were isolated and maintained in culture. forty-eight species of cyanobacteria were identified, with predominance of the order chroococcales (58%), followed by the orders oscillatoriales (21%) and nostocales (21%). among the 48 studied species, 17 (35%) were considered potentially toxic. the occurrence and biodiversity of the cyanobacteria in each reservoir depend on the environmental conditions. among the five water bodies, billings reservoir presented the most adequate situation for the development of a greater number of species (34), probably due to its high ph values (around 8). pirapora reservoir on the other hand, with highest conductivity (445.0 μs cm-1) and lowest secchi depth values (0.2 m), presented the lowest cyanobacterial biodiversity (14 species).
Homeopathy for Depression - DEP-HOM: study protocol for a randomized, partially double-blind, placebo controlled, four armed study
Ubiratan C Adler, Stephanie Krüger, Michael Teut, Rainer Lüdtke, Iris Bartsch, Lena Schützler, Friedericke Melcher, Stefan N Willich, Klaus Linde, Claudia M Witt
Trials , 2011, DOI: 10.1186/1745-6215-12-43
Abstract: A randomized, partially double-blind, placebo-controlled, four-armed trial using a 2 × 2 factorial design with a six-week study duration per patient will be performed. 228 patients diagnosed with major depression (moderate episode) by a psychiatrist will be included. The primary endpoint is the total score on the 17-item Hamilton Depression Rating Scale after six weeks. Secondary end points are: Hamilton Depression Rating Scale total score after two and four weeks; response and remission rates, Beck Depression inventory total score, quality of life and safety at two, four and six weeks. Statistical analyses will be by intention-to-treat. The main endpoint will be analysed by a two-factorial analysis of covariance. Within this model generalized estimation equations will be used to estimate differences between verum and placebo, and between both types of case history.For the first time this study evaluates both the specific effect of homeopathic medicines and of a homeopathic case taking in patients with depression. It is an attempt to deal with the challenges of homeopathic research and the results might be useful information in the current discussion about the evidence on homeopathyClinicalTrials.gov: NCT01178255From 120 million people that suffer from depression around the world, less than 25% receive adequate treatment [1]. The estimated global burden of disease from major depression, measured as "disability adjusted life years" (DALY), is rising globally, making depression the leading cause of DALYs in middle and high income countries [2]. The overall prevalence of depressive disorders in five European countries was 8.56%, with a higher prevalence in urban Ireland (12.3%) and urban United Kingdom (UK, 17.1%) [3]. The prevalence can be higher in some age groups. For instance, in Berlin, Germany, the prevalence of lifetime depression in 2008 was almost 20% for women between 18 and 29 years old, 25% for women between 40 and 59 years old and, among men, 12% and 15% f
Temporal Integration Windows for Naturalistic Visual Sequences
Scott L. Fairhall, Angela Albi, David Melcher
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0102248
Abstract: There is increasing evidence that the brain possesses mechanisms to integrate incoming sensory information as it unfolds over time-periods of 2–3 seconds. The ubiquity of this mechanism across modalities, tasks, perception and production has led to the proposal that it may underlie our experience of the subjective present. A critical test of this claim is that this phenomenon should be apparent in naturalistic visual experiences. We tested this using movie-clips as a surrogate for our day-to-day experience, temporally scrambling them to require (re-) integration within and beyond the hypothesized 2–3 second interval. Two independent experiments demonstrate a step-wise increase in the difficulty to follow stimuli at the hypothesized 2–3 second scrambling condition. Moreover, only this difference could not be accounted for by low-level visual properties. This provides the first evidence that this 2–3 second integration window extends to complex, naturalistic visual sequences more consistent with our experience of the subjective present.
Can Intestinal Constipation Be Modulated by Prebiotics, Probiotics and Symbiotics?  [PDF]
M?nica de Souza Lima Sant’Anna, Célia Lúcia de Luces Fortes Ferreira
Food and Nutrition Sciences (FNS) , 2014, DOI: 10.4236/fns.2014.512120
Abstract:

The importance of maintaining a healthy intestinal microbiota in the health of the host has been increasingly clarified. This microbiota may appear unbalanced in diseases such as colitis, diarrhea, irritable bowel syndrome and constipation. To rebalance the microbiota and improve the symptoms of constipation, it is recommended to intake prebiotics, probiotics and symbiotics, which works in the modulation of a healthy intestinal microbiota and favors the production of short-chain fatty acids that have a positive effect on intestinal transit. In addition, some studies indicate that there is a relation between the brain and the intestine that influences the behavior of individuals with intestinal dysbiosis. Thus, the reestablishment of the eubiosis in constipated patients through the functional compounds (prebiotics, probiotics and symbiotics) has been showing promising results regarding the modulation of constipation and improvement of the clinical picture. This review will emphasize the relation of prebiotics, probiotics and symbiotics in the modulation of intestinal constipation. New food sources of these compounds should be evaluated for their efficacy, dose and effect to establish a proper management.

A esquistossomose urbana e a heterogeneidade social e epidemiológica da popula??o do município de Campinas, S?o Paulo, Brasil
Lima, Virgília L. C. de;
Cadernos de Saúde Pública , 1995, DOI: 10.1590/S0102-311X1995000100011
Abstract: this study deals with the relationship between schistosomiasis and urbanization, particularlv the urbanization process experienced by cities in dependent capitalist countries, with large groups of people in precarious living conditions. six hundred and ten notified autochthonous cases in campinas during the period from 1970 to 1990 are analyzed through notification files with regard to patients? socio-economic conditions. autochthonous cases of schistosomiasis were demonstrated as having a more heterogeneous geographical distribution within the urban area than could be inferred from previous studies that correlate the occurence of transmission with precarious sanitary conditions.
Sistema hospitalar como fonte de informa??es para estimar a mortalidade neonatal e a natimortalidade
Schramm,Joyce MA; Szwarcwald,Célia L;
Revista de Saúde Pública , 2000, DOI: 10.1590/S0034-89102000000300010
Abstract: objective: studies on the evolution of infant mortality rate are very relevant. nevertheless, lack of vital statistics in brazil limits the temporal and spatial analysis of this indicator. this study aims to investigate the possible use of the brazilian hospital information system as an alternative information source for stillbirth and neonatal mortality rates by age group. methods: a new method to estimate the stillbirth and neonatal mortality rates is proposed. it was applied in a set of selected brazilian states in the year of 1995. for comparative purposes, the brazilian death information system was assessed to estimate the mortality rates under study, after adjusting the registered number of live births by using a demographic tool. results: by assessing the hospital information system a larger number of fetal and early neonatal deaths were observed when compared to data given by the death information system of the northeastern states. besides, in the southern and southeastern states, where death records are more thorough, the mortality rates calculated using both information sources were very similar. conclusions: the results suggest that the proposed methodology could greatly contribute to the analysis of the spatial-time evolution of stillbirth and neonatal death rates in recent years in brazil, as data on death registration in the majority of the brazilian states are less thorough than those from the hospital information system.
Sistema hospitalar como fonte de informa es para estimar a mortalidade neonatal e a natimortalidade
Schramm Joyce MA,Szwarcwald Célia L
Revista de Saúde Pública , 2000,
Abstract: OBJETIVO: Apesar da reconhecida importancia em acompanhar a evolu o temporal da mortalidade infantil precoce, a deficiência das estatísticas vitais no Brasil ainda permanece na agenda atual dos problemas que impedem o seu acompanhamento espa o-temporal. Realizou-se estudo com o objetivo de investigar o Sistema de Informa es Hospitalares (SIH/SUS) como fonte de informa es, para estimar a natimortalidade e a mortalidade neonatal. MéTODOS: Prop e-se um método para estimar a natimortalidade e a mortalidade neonatal, o qual foi aplicado para todos os Estados das regi es Nordeste, Sul e Sudeste e para o Pará, no ano de 1995. Para fins comparativos, o Sistema de Informa es sobre Mortalidade (SIM/MS) foi utilizado para estimar as taxas sob estudo, após a corre o do número de nascidos vivos por um método demográfico. RESULTADOS: O SIH/SUS forneceu mais óbitos fetais e neonatais precoces do que o SIM/MS em grande parte das unidades federadas da regi o Nordeste. Adicionalmente para os Estados localizados nas regi es Sul e Sudeste, que apresentam, em geral, boa cobertura do registro de óbitos, as taxas calculadas pelos dois sistemas de informa o tiveram valores semelhantes. CONCLUS ES: Considerando a cobertura incompleta das estatísticas vitais no Brasil e a agilidade do SIH/SUS em disponibilizar as informa es em meio magnético, conclui-se que o uso do SIH/SUS poderá trazer inúmeras contribui es para análise do comportamento espa o-temporal do componente neonatal da mortalidade infantil no território brasileiro, em anos recentes.
A esquistossomose urbana e a heterogeneidade social e epidemiológica da popula o do município de Campinas, S o Paulo, Brasil
Lima Virgília L. C. de
Cadernos de Saúde Pública , 1995,
Abstract: Este estudo aborda as rela es da esquistossomose com uma das características da urbaniza o intensa que vem sendo observada nos países de capitalismo tardio, que é a presen a de um aglomerado de pessoas, vivendo nas periferias das cidades em precárias condi es de vida. Foram estudados 610 casos autóctones notificados da endemia, no município de Campinas (situado a 98km da capital), correspondentes ao período de 1970 a 1990, por meio de suas fichas de notifica o epidemiológica, visando avaliar as condi es socioecon micas dos portadores da doen a. Constatou-se que a esquistossomose autóctone no município de Campinas apresenta distribui o mais heterogênea do que se poderia esperar com base nos estudos existentes sobre a endemia, em que ela é intimamente relacionada a condi es precárias de saneamento básico e subsistência.
Erratum: Star formation and chemical evolution in SPH simulations: a statistical approach
C. Lia,L. Portinari,G. Carraro
Physics , 2002, DOI: 10.1046/j.1365-8711.2002.05798.x
Abstract: Errata for MNRAS 330, 821 (2002, astro-ph/0111084). A notation error in Eq. 7 and some typos in Table 3 corrected.
Coupling Chemical Evolution with SPH
G. Carraro,L. Portinari,C. Lia
Physics , 2001,
Abstract: We present a new statistical algorithm of Chemical Evolution implemented into the Tree-SPH code developed by Lia & Carraro (2000 MNRAS 314, 145).
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