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Search Results: 1 - 10 of 95456 matches for " I.;Teixeira "
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Sustentabilidade da política de acesso a medicamentos anti-retrovirais no Brasil
Grangeiro,Alexandre; Teixeira,Luciana; Bastos,Francisco I.; Teixeira,Paulo;
Revista de Saúde Pública , 2006, DOI: 10.1590/S0034-89102006000800009
Abstract: objective: the expense of acquiring antiretroviral drugs in brazil has given rise to debate about the sustainability of the policy of universal access to aids medications, despite the evident benefits. the objective of this study was to analyze the evolution of the ministry of health's spending on acquiring antiretroviral drugs from 1998 to 2005, the determining factors and the medium-term sustainability of this policy (2006-2008). methods: the study on the evolution of spending on antiretrovirals included analysis of their prices, the year-by-year expenditure, the number of patients utilizing the medication, the mean expenditure per patient and the strategies for reducing the prices maintained during this period. to analyze the sustainability of the policy for access to antiretrovirals, the cost of acquiring the drugs over the period from 2006 to 2008 was estimated, along with the proportion of gross domestic product and federal health expenditure represented by this spending. the data were collected from the ministry of health, the brazilian institute for geography and statistics (ibge) and the ministry of planning. results: the expenditure on antiretrovirals increased by 66% in 2005, breaking the declining trend observed over the period from 2000 to 2004. the main factors associated with this increase were the weakening of the national generics industry and the unsatisfactory results from the process of negotiating with pharmaceutical companies. conclusions: the brazilian policy for universal access is unsustainable at the present growth rates of the gross domestic product, unless the country compromises its investments in other fields.
Statistical mechanical study of thermodynamic properties of a family of fullerites from C36 to C96 in the equilibrium with their vapors
V. I. Zubov,I. V. Zubov,J. N. Teixeira Rabelo
Physics , 2004,
Abstract: On the basis of the correlative method of the unsymmetrized self-consistent field that yields the account of the strong anharmonicity of the lattice vibrations, it has been calculated the temperature dependence of saturated vapor pressure of higher and smaller fullerites, from C36 up to the C96, and their thermodynamic properties along their sublimation curves. We have used the intermolecular potential of Girifalco with parameters recently calculated for these fullerenes. The calculations were accomplished up to the temperature of loss of stability (spinodal point) Ts. We compare our results with available experimental data, and with quantities calculated earlier for the magnitudes of the most widespread of the fullerites, the C60. The behavior of some characteristics is considered in their dependence on the number of atoms in the molecule.
Efeito do nível de caro?o integral de algod?o sobre o consumo e digestibilidade aparente da fra??o fibrosa do feno de braquíaria (Brachiaria decumbens) em ovinos
Teixeira, D.A.B.;Borges, I.;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2005, DOI: 10.1590/S0102-09352005000200015
Abstract: the effect of increasing level of whole cottonseed (0, 12, 24, 35 and 49%) to a basic diet of brachiaria decumbens hay on digestibility coefficient of neutral detergent fiber (ndf), acid detergent fiber (adf), hemicellulose and cellulose was evaluate in sheep. twenty five castrated male sheep were randomly allotted to the treatments. no differences between treatments for consumption and digestibility of ndf were observed. the pattern of the digestibility coefficient of adf was similar for all treatments, except for treatment with 49% of whole cottonseed. the pattern of the digestibility coefficient of cellulose was similar to the corresponding digestibility coefficient of adf. the digestibility coefficient of hemicellulose for treatments with whole cottonseed was larger than that with no cottonseed.
The occurrence of amphibians in bromeliads from a Southeastern Brazilian restinga habitat, with special reference to Aparasphenodon brunoi (Anura, Hylidae)
TEIXEIRA, R. L.;SCHINEIDER, J. A. P.;ALMEIDA, G. I.;
Brazilian Journal of Biology , 2002, DOI: 10.1590/S1519-69842002000200010
Abstract: five species of anuran amphibians, all belonging to the family hylidae, were collected at praia das neves, municipality of presidente kennedy, southeastern brazil,. the species were represented by four genera: scinax, hyla, aparasphenodon, and trachycephalus. four species (a. brunoi, hyla albomarginata, scinax altera, and s. cuspidatus) were found during the dry season (august 1999), and two (a. brunoi and trachycephalus nigromaculatus) in the rainy season (february 2000). aparasphenodon brunoi was the most abundant species in praia das neves. some reproductive aspects and feeding habits of this hylid were investigated. aparasphenodon brunoi was found mainly inside the bromeliad aechmea lingulata, the largest plant analyzed. fifteen specimens were collected during the dry season (august 1999) (11 males and 4 females). during the rainy season (february 2000), we collected 14 specimens (3 males, 10 females, and 1 juvenile). sex-ratio was 1:1. frogs ranged in snout-vent length from 31.2 to 69.3 mm. females were larger than males. one female had 1,451 fully developed oocytes in her ovaries. the major groups of prey found in the stomachs were: insecta, myriapoda, and arachnida. blattodea, orthoptera, lepidoptera, and hymenoptera (only ants) were the main food types in frequency, number, and weight. aparasphenodon brunoi is a threatened species in many habitats of southeastern brazil. only natural vegetation protection may guarantee its survival during the immediate future.
Geochronology, geochemistry and tectonic setting of the precambrian dykes from the Quadrilátero Ferrífero Brazil
M. A. Carneiro,I. M. Carvalho,W. Teixeira
Chinese Science Bulletin , 1998, DOI: 10.1007/BF02891379
Abstract:
Screening of lectins from South American plants used as affinity ligands to purify rhEPO
Amadeo G.I.,Moreira R.,Lima R.,Teixeira D.
Brazilian Journal of Chemical Engineering , 2003,
Abstract: Two groups of isoforms of rhEPO, at a concentration of 300 μg/ml, were tested as putative inhibitors of the lectinic hemagglutination reaction in order to obtain affinity ligand(s) for hormone purification: groups I (pI: 3.80; 3.89; 3.95; 4.07, 4.15 and 4.26) and groups II (pI: 4.15, 4.26; 4.38; 4.51; 4.72 and 4.93) Crude extracts from the vegetable materials Abrus precatorious (Abrin), Artocarpus incisa (Frutalin), Artocarpus integrifolia (Jacalin), Canavalia ensiformes (ConA), Canavalia brasiliensis (Conbr), Cratylia floribunda, Dioclea altissima (DAL), Dioclea grandiflora (DGL), Erythrina vellutina (EVL), Erythrina cristagalli, Lutaelburgia auriculata (lectin not fully characterized yet), Lycopersicum esculentum (LEA), Phaseolus vulgaris (PHA), Ricinus communis (Ricin) and Triticum vulgaris (WGA) were used. Only some of the galactose-specific lectins and the GlcNAc-specific lectins showed rapid full inhibition of the hemagglutination reaction for the less acidic isoforms and the total isoforms of rhEPO, respectively. On this basis, the selected lectins were purified by affinity chromatoghraphy and covalently coupled to cyanogen bromide activated Sepharose (Amersham-Pharmacia). CHO.K1 cell culture supernatant containing rhEPO was loaded onto the lectin resins and the recoveries were calculated by using specific elutions.
The occurrence of amphibians in bromeliads from a Southeastern Brazilian restinga habitat, with special reference to Aparasphenodon brunoi (Anura, Hylidae)
TEIXEIRA R. L.,SCHINEIDER J. A. P.,ALMEIDA G. I.
Brazilian Journal of Biology , 2002,
Abstract: Five species of anuran amphibians, all belonging to the family Hylidae, were collected at Praia das Neves, municipality of Presidente Kennedy, southeastern Brazil,. The species were represented by four genera: Scinax, Hyla, Aparasphenodon, and Trachycephalus. Four species (A. brunoi, Hyla albomarginata, Scinax altera, and S. cuspidatus) were found during the dry season (August 1999), and two (A. brunoi and Trachycephalus nigromaculatus) in the rainy season (February 2000). Aparasphenodon brunoi was the most abundant species in Praia das Neves. Some reproductive aspects and feeding habits of this hylid were investigated. Aparasphenodon brunoi was found mainly inside the bromeliad Aechmea lingulata, the largest plant analyzed. Fifteen specimens were collected during the dry season (August 1999) (11 males and 4 females). During the rainy season (February 2000), we collected 14 specimens (3 males, 10 females, and 1 juvenile). Sex-ratio was 1:1. Frogs ranged in snout-vent length from 31.2 to 69.3 mm. Females were larger than males. One female had 1,451 fully developed oocytes in her ovaries. The major groups of prey found in the stomachs were: Insecta, Myriapoda, and Arachnida. Blattodea, Orthoptera, Lepidoptera, and Hymenoptera (only ants) were the main food types in frequency, number, and weight. Aparasphenodon brunoi is a threatened species in many habitats of southeastern Brazil. Only natural vegetation protection may guarantee its survival during the immediate future.
Spikes in Cosmic Crystallography II: Topological Signature of Compact Flat Universes
G. I. Gomero,M. J. Reboucas,A. F. F. Teixeira
Physics , 1999, DOI: 10.1016/S0375-9601(00)00606-X
Abstract: We study the topological signature of euclidean isometries in pair separations histograms (PSH) and elucidate some unsettled issues regarding distance correlations between cosmic sources in cosmic crystallography. Reducing the noise of individual PSH's using mean pair separations histograms we show how to distinguish between topological and statistical spikes. We report results of simulations that evince that topological spikes are not enough to distinguish between manifolds with the same set of Clifford translations in their covering groups, and that they are not the only signature of topology in PSH's corresponding to euclidean small universes. We also show how to evince the topological signature due to non-translational isometries.
Signature for the Shape of the Universe
G. I. Gomero,M. J. Reboucas,A. F. F. Teixeira
Physics , 2001, DOI: 10.1142/S021827180000075X
Abstract: If the universe has a nontrivial shape (topology) the sky may show multiple correlated images of cosmic objects. These correlations can be couched in terms of distance correlations. We propose a statistical quantity which can be used to reveal the topological signature of any Robertson-Walker (RW) spacetime with nontrivial topology. We also show through computer-aided simulations how one can extract the topological signatures of flat, elliptic, and hyperbolic RW universes with nontrivial topology.
A Topological Signature in Cosmic Topology
G. I. Gomero,M. J. Reboucas,A. F. F. Teixeira
Physics , 1999, DOI: 10.1088/0264-9381/18/10/306
Abstract: Two procedures for obtaining (extracting and constructing) the topological signature of any multiply connected Robertson-Walker (RW) universe are presented. It is shown through computer-aided simulations that both approaches give rise to the same topological signature for a multiply connected flat RW universe. The strength of these approaches is illustrated by extracting the topological signatures of a flat ($k=0$), an elliptic ($k=1$), and a hyperbolic ($k=-1$) multiply connected RW universes. We also show how separated contributions of the covering isometries add up to form the topological signature of a RW flat universe. There emerges from our theoretical results and simulations that the topological signature arises (in the mean) even when there are just a few images for each object. It is also shown that the mean pair separation histogram technique works, and that it is a suitable approach for studying the topological signatures of RW universes as well as the role of non-translational isometries.
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