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Search Results: 1 - 10 of 58561 matches for " Joel Carlos;Camargo "
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Paracoccidioidomicose: freqüência, morfologia e patogênese de les?es tegumentares
Marques, Silvio Alencar;Cortez, Daniela Barros;Lastória, Joel Carlos;Camargo, Rosangela M. Pires de;Marques, Mariangela E. Alencar;
Anais Brasileiros de Dermatologia , 2007, DOI: 10.1590/S0365-05962007000500003
Abstract: background: paracoccidioidomycosis is a highly prevalent systemic mycosis in brazil. the oral and cutaneous lesions are useful for diagnostic proposals and clinical follow-up. objective: to quantify and qualify skin lesions associated to active paracoccidioidomycosis and to correlate them with the clinical form and severity of cases. methods: an observational clinical study of cases was performed. patients were classified according to the clinical form, topographic distribution and morphology of skin lesions. results: a total of 152 patients classified as chronic form (adult type) (87.5%) or acute-subacute form (juvenile type) (12.5%) were studied. skin lesion was diagnosed in 61.2% of patients. there was no statistical correlation between presence of skin lesion and clinical form (p=1.000), nor between skin lesion and severity of disease (p=0.5607). there was statistical correlation between mucosal lesion and adult patients (p <0.001). the lesions were on the cephalic segment (47.6%), trunk (14.9%), upper limbs (14.9%), lower limbs (21.7%) and genital region (0.7%). the ulcerated lesions (42.8%) and infiltrative (26.6%) lesions prevailed. conclusion: the frequency of skin lesions and their morphology are useful for diagnosis of paracoccidioidomycosis. oral lesions in the acute-subacute form (juvenile type) are not common.
Paracoccidioidomycosis: infiltrated, sarcoid-like cutaneous lesions misinterpreted as tuberculoid leprosy
Marques, Sílvio Alencar;Lastória, Joel Carlos;Putinatti, Maria Stella de M.A.;Camargo, Rosangela Maria Pires de;Marques, Mariangela E. A.;
Revista do Instituto de Medicina Tropical de S?o Paulo , 2008, DOI: 10.1590/S0036-46652008000100010
Abstract: the authors report a case of paracoccidioidomycosis misinterpreted as tuberculoid leprosy, both on clinical and histological examination. sarcoid-like cutaneous lesion as the initial presentation is rare in young patient with paracoccidioidomycosis and can simulate other infectious or inflammatory diseases. on histology, tuberculoid granuloma presented similar difficulties. treatment with dapsone, a sulfonamide derivative, could have delayed the presumed natural clinical course to the classical juvenile type of paracoccidioidomycosis, observed only 24 months after the patient had been treated for leprosy.
La innovación de tipo organizacional en las empresas manufactureras de Cartagena de Indias
Arraut Camargo,Luis Carlos;
Semestre Económico , 2008,
Abstract: this article shows an analysis of organizational-type innovations in the companies. the importance of work relies on the need for studying a modern and important phenomenon for companies, such as the organizational-type innovation, which helps to know how and why this organizational phenomenon is occurring, providing new elements for studying the innovation in the organizations. methodology used was that of explanatory case study. results from this study show that petrochemical-plastic sector companies (although not having an innovation management model) have a quality system which allows them to develop their innovation capacity.
La gestión de calidad como innovación organizacional para la productividad en la empresa
Arraut Camargo,Luis Carlos;
Revista EAN , 2010,
Abstract: this article shows the importance of innovation for academic professionals and company managers. the main topic is organizational innovation based on quality systems and their impact on productivity and competitiveness. the methodology used is that of explained multiple cases taken as a unit of analysis in the petrochemical- plastic sector in cartagena city, colombia. the principal results are, first, the importance of organizational innovation and how a group of manufacturing companies in cartagena, colombia, develops this kind of innovation based on quality systems iso as a positive effect on their productivity. this paper is the result of a doctoral degree research on organizational innovation in the petrochemical- plastic sector in cartagena, colombia.
Continuity of the Jones' set function $\mathcal{T}$
Javier Camargo,Carlos Uzcategui
Mathematics , 2015,
Abstract: Given a continuum $X$, for each $A\subseteq X$, the Jones' set function $\mathcal{T}$ is defined by $\mathcal{T}(A)=\{x\in X : \text{for each subcontinuum }K\text{ such that }x\in \textrm{Int}(K), \text{ then }K\cap A\neq\emptyset\}.$ We show that $\mathcal{D}=\{\mathcal{T}(\{x\}):x\in X\}$ is decomposition of $X$ when $\mathcal{T}$ is continuous. We present a characterization of the continuity of $\mathcal{T}$ and answer several open questions posed by D. Bellamy.
Melhoramento do trigo: I. Hereditariedade da tolerancia à toxicidade do alumínio
Camargo, Carlos Eduardo de Oliveira;
Bragantia , 1981, DOI: 10.1590/S0006-87051981000100004
Abstract: four wheat cultivars showing different reactions to al toxicity under field conditions and presenting a great variation in plant height were screened in nutrient solution with different concentrations of aluminum. the tall brazilian cultivar, 'bh-1146' was tolerant to 10 ppm of al; 'atlas-66' developed in north carolina was tolerant to 6 ppm but moderately tolerant to 10 ppm of aluminum. the dwarf cultivar tordo, a tom thumb source of dwarfism, was tolerant to 2 ppm but totally sensitive at 6 ppm. the mexican semidwarf cultivar siete cerros, a niorin-10 derivative, was sensitive to 2 ppm of al. parents, f1 and f2 generations from the crosses between tolerant ('bh-1146' and 'atlas-66') and sensitive ('tordo' and 'siete cerros') cultivars to 6 ppm were screened under 3 ppm and the same genotypes plus the backcrosses to both types of parents (bca and bcb) were screened at 6 ppm. parents, f1 and f2 progenies from bca and bcb involving the cross bh-1146/siete cerros were retested under 3 and 6 ppm of al. parents, f1 and f2 for the cross between 'bh-1146' and 'atlas-66' were screened under 6 and 10 ppm of al. at 2 and 3 ppm of al, parents, f1 and f2 from the cross tordo/siete cerros were studied. the results obtained suggest that 'bh-1146' differs from atlas-66, siete cerros and tordo by one pair of dominant gene. this pair of gene was efficient even at 10 ppm of aluminum, so should be used in a breeding program towards aluminum tolerance when high levels of this element are involved. the cultivar atlas-66 showed to have two pairs of dominant genes for al tolerance but when the aluminum concentration increased from 3 and 6 to 10 ppm these pairs of genes became less efficient. 'tordo' differs from 'siete cerros' by a pair of dominant gene for tolerance at 2 ppm of al. so 'tordo' would be useful as a source of tolerance when low levels of aluminum are involved. there was a gradual decrease of dominance of the pair or pairs of genes, or of the complex of genes which could be
Melhoramento do trigo: III. Evidência de controle genético na tolerancia ao manganês e alumínio tóxico em trigo
Camargo, Carlos Eduardo de Oliveira;
Bragantia , 1983, DOI: 10.1590/S0006-87051983000100009
Abstract: the cultivar siete cerros (p1) with tolerance to manganese toxicity and the cultivar bh-1146 (p2) showing sensitivity to manganese, were crossed. it was obtained the f1 and f2 generations of this cross. p1, p2, f1 and f2, where cultivated in nutrient solutions containing 0.11, 300, 600 and 1,200mg/l of manganese and they also were tested in other nutrient solution with 3mg/l of aluminum. the length of the central primary root of plants of each genotype under study after fifteen days being cultivated in nutrient solutions containing different manganese concentrations was used to evaluate the levels of tolerance to this element. the length of the central primary root of plants of each genotype measured 72 hours in a normal nutrient solution after a previous test in a treatment solution containing 3mg/l of aluminum was considered to evaluate the degree of tolerance to aluminum toxicity. the broad sense heritabilities values of root length considering increasing levels of manganese in the solution and 3mg/l of aluminum were high which indicated that the present variability found in the populations were in great part due to genetic origin. these results suggested that selections for tolerance to aluminum and manganese toxicities would be effective in early generations of a cross. the data showed that it would be possible to transfer by crossing bh-1146 and siete cerros the genetic tolerance to manganese from siete cerros into the bh-1146 germplasm or to obtain a siete cerros germplasm with aluminum tolerance from bh-1146 source.
Melhoramento do trigo: VI. hereditariedade da tolerancia a três concentra??es de alumínio em solu??o nutritiva
Camargo, Carlos Eduardo de Oliveira;
Bragantia , 1984, DOI: 10.1590/S0006-87051984000200002
Abstract: four wheat cultivars: bh-1146, c-3, siete cerros and brevor were tested in nutrient solution with 0, 1, 2, 3, 4, 5, 6 and 10mg/l of al3+. it was demonstrated that b-1146 and c-3 presented tolerance to 10mg/l of al3+ whereas brevor and siete cerros were sensitive to 1mg/l of al3+. it was considered tolerant the plant that was able to show root regrowth of the central primary root in the complete nutrient solution after a treatment in a solution containing a particular amount of aluminum. seeds of c-3 and siete cerros, considered parental lines, and the f1 and f2 populations from the crosses between them, were tested in nutrient solutions where 3, 6 and 10mg/l of aluminum were applied. the results showed that c-3 differed from siete cerros by one pair of dominant genes for tolerance at 3mg/l of aluminum. there was a gradual decrease of dominance of the gene pair responsable for the tolerance reaction when it was used 6mg/l of aluminum in the solution. the cultivar siete cerros differed from c-3 by one pair of dominant genes for susceptibility at 10mg/l of aluminum or c-3 differed from siete cerros by one dominant gene even at 10mg/l of al3+ if it was considered that the heterozygous individuals from the f1 and f2 populations showed reaction of susceptibility. heterozygous seedlings of f1 and f2, populations from the cross c-3/siete cerros, considered tolerant at 3mg/l of al3+, showed a decrease in tolerance at 6mg/l and susceptibility at 10mg/l. high broad sense heritability estimates (0.725 to 0.895) for aluminum tolerance to three different levels were obtained suggesting that selection for tolerance would be effective in the f2, population from the studied cross. it would be interesting to select for aluminum tolerance using solutions containing 10mg/l of al3+ when large f2 populations are provided being possible to eliminate the sensitive plants (recessive homozygous and heterozygous) and select the homozygous tolerant plants. on the other hand, when small f2 popu
A concentra??o de fósforo na tolerancia de cultivares de trigo à toxicidade de alumínio em solu??es nutritivas
Camargo, Carlos Eduardo de Oliveira;
Bragantia , 1985, DOI: 10.1590/S0006-87051985000100005
Abstract: two experiments were conducted with the objective of studying the tolerance of wheat cultivars to 5 mg/l of al3+ in nutrient solutions. the tolerance was evaluated by measuring the root growth in an aluminum-free complete nutrient solution after a treatment of 48 hours, in aluminum solution with different levels of phosphorus, and with controlled ph and temperature (25 ± 1oc). in the first experiment eight cultivars were studied in treatment solutions with four levels of phosphorus (0; 15.5; 31.0 and 62.0 mg/l combined with three levels of ph (4.0; 5.0 and 6.0). the cultivars cnt-8 and siete cerros were sensitive and 'bh-1146', 'iac-18', 'iac-13', 'c-3', 'iac-17 and 'alondra- 4546' were tolerant to 5 mg/l of al3+ in the solutions with ph 4.0 and in absence of p. all cultivars were sensitive to al3+ when it was applied 15.5 mg/l of p and they were tolerant when was used 62 mg/l of p in the solutions, considering constant the ph 4.0. in solutions with the level of 31 mg/l of p and ph 4.0, the cultivars iac-18, bh-1146, iac-13 and c-3 showed tolerance and iac-17, alondra-4546, cnt-8 and siete cerros showed sensitivity to al3+ when it was used solution with ph 5.0 or 6.0 the cultivars presented tolerance being non dependent of p concentration, in consequence of the low activity of al3+ ions under these ph levels. the data demonstrated that tolerance to 5 m/l of al3+, besides the ph level was dependent on the p concentration in the solution. the cultivars bh-1146, iac-17 and siete cerros were studied in a second experiment in nutrient solutions with ph 4.0, containing five p concentrations (0; 1.55; 3.875; 7.75 and 15.5 mg/l). 'bh-1146' and 'iac-17 were tolerant and 'siete cerros' was sensitive to 5 mg/l of al3+ when it was added 0 and 1.55 mg/l of p into the treatment solution. when it was considered the p levels of 3.875; 7.75 and 15.5 mg/l all cultivates showed symptoms of al toxicity in their mots. there was an increase in p content in aereal part and root dry matter
Melhoramento do trigo: XIV. Correla??es entre a tolerancia à toxicidade a dois níveis de alumínio e altura das plantas com outros caracteres agron?micos em trigo
Camargo, Carlos Eduardo de Oliveira;
Bragantia , 1987, DOI: 10.1590/S0006-87051987000100010
Abstract: the standard height and al tolerant cultivar bh-1146 was crossed with semi-dwarf and al sensitive cultivars tobari-66 and siete cerros, in 1983. parents, f1's and f2's were tested for their reaction to 1 and 3 mg/l of al3+ in nutrient solution, in laboratory condition and evaluated for grain yield, plant height, number of spikes per plant, number of spikelets per spike, number of grains per spike, number of grains per spikelet, 100-grain-weight and spike length at maturity in an experiment using pots, under a screen house at experimental center of campinas, state of s?o paulo, brazil, in 1984. medium to high narrow sense heritability estimates were obtained for spike length, number of grains per spike, number of grain per spikelet and number of spikes per plant; and medium to low for other agronomic characteristics under study. plant height was significantly correlated with all the agronomic characteristics under study, except number of grains per spikelet and 100-grain-weight in the 'bh-1146' x 'tobari- 66' population. tolerance to al3+ toxicity was not associated with grain yield (except for the population from the cross bh-1146 x tobari-66 using 3 mg/l of al3+), plant height and number of grain per spikelet. the results suggested that it is possible to select plant types that combine al3+ tolerance, semi-dwarf height levels and high yield potential to be cultivated on aluminum acid soils. however, larger f2 populations would be required to ensure the frequency of desired recombinants.
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