22 research outputs found
Ventricular catheter exchange using a peel-away outer catheter
No full textVentricular catheter replacement can be challenging, especially in patients with small ventricles. Shunt malfunction due to ventricular catheter obstruction can occur without ventricular enlargement, such as in the setting of slit-ventricle syndrome or benign intracranial hypertension. The authors describe a simple technique for ventricular catheter exchange using a peel-away catheter. In the limited initial experience of the senior author (G.S.C.), this technique appears to be safe and effective. To the authors' knowledge, this method has not been described in the neurosurgical literature before.</jats:p
Accuracy of anorectal manometry in the diagnosis of Hirschsprung's disease
No full textJournal of Pediatric Gastroenterology and Nutrition93342-346JPGN
Pathologic-radiologic correlations in screen-detected ductal carcinoma in situ of the breast: Findings of the Singapore breast screening project
No full text10.1002/1097-0215(20000820)90:43.0.CO;2-UInternational Journal of Cancer904231-236IJCN
Nephrotic syndrome associated with malignant tumours
No full textAnnals of the Academy of Medicine Singapore11157-60AAMS
Allelic Diversity In Populations Of Solanum Lycocarpum A. St.-hil (solanaceae) In A Protected Area And A Disturbed Environment [diversidade Alélica Em Populações De Solanum Lycocarpum A. St.-hil (solanaceae) Em Unidade De Conservação E Em Ambiente Sob Influência Antrópica]
No full textThis study aimed to compare the genetic diversity of populations of Solanum lycocarpum A.St.-Hil between natural and human disturbed environments, with the assumption that protected areas have greater genetic diversity than disturbed areas. For this study, two populations were sampled in Goiás State, Brazil. One was located in a conservation unit, Serra de Caldas Novas State Park, in the Caldas Novas municipality. The other was located in a pasture area in the municipality of Morrinhos. The two populations are 41 km apart. We sampled 60 individuals from each population, which were genotyped with five microsatellite loci (SSR). The highest number of alleles was recorded in the population of the conservation unit, where we found 11 exclusive and five rare alleles. In the disturbed area, we recorded only three exclusive alleles and one rare allele. Although we did not observe significant inbreeding in these populations, genetic divergence between them was high (G ST (Hedrick)=0.147 =0.147) for a species with long distance seed dispersal. The results corroborate the hypothesis that the population in the less disturbed area harbors greater allelic diversity. They also confirm the effectiveness of using protected areas to preserve the genetic diversity of the species.254937940Buso, G.S.C., Brondani, R.V., Amaral, Z.P.S., Reis, A.M.M., Ferreira, M.E., (2000) Desenvolvimento De Primers SSR Para Análise Genética Depimentas E Pimentões (Capsicum Spp.) Utlizando Biblioteca Genômica Enriquecida, p. 15. , Brasília, Embrapa/Cenargen. (Boletim de pesquisaCouternay, Y., Conservation of the Maned Wolf: Fruitful relations in a changing environment (1994) Canid News, 2, pp. 41-43Crow, J.F., Aoki, K., Group selection for polygenic behavioral trait: Estimating the degree of population subdivision. Proceedings of the National Academy of Sciences of United States of América (1984) PNAS, 81 (19), pp. 607-677Degen, B., (2006) Genetic Data Analysis and Numerical Tests, , GDA_NT 2006, Grosshansdorf, Institute for Forest GeneticsFerreira, M.E., Grattapaglia, D., (1988) Introdução Ao Uso De Marcadores RAPD E RFLP Em Análise Genética, , 3 ed. Brasília, Embrapa - CenargenGoodman, S.J., RstCalc: A collection of computer programs for cal- culating estimates to genetic differentiation from microsatellite data and determining their significance (1997) Molecular Ecology, 6 (9), pp. 881-885Hedrick, P.W., A standardized genetic differentiation measure (2005) Evolu- Tion, 59 (8), pp. 1633-1638Lewis, P.O., Zaykin, D., (2000) Genetic Data Analysis: Computer Program For the Analysis of Allelic Data, , http://lewis.eeb.uconn.edu/lewishome/software.html, Version 1.0 (d15). Free program dis- tributed by the author over the internet from the GDA., Acesso em 23/01/2007Martins, K., Chaves, L.J., Buso, G.S.C., Kageyama, P.Y., Mating system and fine-scale spatial genetic structure of Solanum lycocarpum St. Hill. (Solanaceae) in the Brazilian Cerrado (2006) Conservation Genetics, 7 (6), pp. 957-969Martins, K., Chaves, L.J., Vencovski, R., Kageyama, P.Y., Genetic structure based on nuclear and chloroplast microsatellite loci of Sola- num lycocarpum A. St.-Hil (Solanaceae) in Central Brazil (2011) Genetics and Molecular Research, 10 (2), pp. 665-677Moura, T.M., Sebbenn, A.M., Chaves, L.J., Coelho, A.S.G., Oliveira, G.C.X., Kageyama, P.Y., Diversidade e estrutura genética espacial em populações fragmentadas de Solanum spp. do Cerrado, estimados por meio de locos microssatélites (2009) Scientia Forestalis, 37 (82), pp. 143-150Oliveira, F.A.T., Oliveira, L.C.A., Biologia floral de uma população de S. lycocarpum St. Hill. (Solanaceae) em Lavras MG (1988) Revista Brasileira De Botânica, 11 (1-2), pp. 23-32Vidal, M.C., Stacciarini-Seraphin, E., Camara, H.H.L.L., Crescimento de plântulas de Solanum lycocarpum St. Hil. (lobeira) em casa de vegetação (1999) Acta Botanica Brasilica, 13 (3), pp. 271-275Weir, B.S., Cockerham, C.C., Estimating F-statistics of the analysis of populations structure (1984) Evolution, 38 (6), pp. 1358-137
Overexpression of interleukin-13 induces minimal-change-like nephropathy in rats
No full text10.1681/ASN.2006070710Journal of the American Society of Nephrology1851476-148
Beneficial effects of high-dose losartan in IgA nephritis
No full textClinical Nephrology716617-624CLNH
The changing pattern of primary glomerulonephritis in Singapore and other countries over the past 3 decades
No full textConvex Relaxations With Guaranteed Convergence For Control Design Of Takagi-sugeno Fuzzy Systems [relaxações Convexas De Convergência Garantida Para O Projeto De Controladores Para Sistemas Nebulosos De Takagi-sugeno]
No full textThis paper provides convex conditions with certificates of convergence for the design of state feedback controllers that quadratically stabilize and also ensure op- timal H2 and H∞ performances under quadratic sta- bility for Takagi-Sugeno continuous-time fuzzy systems. The proposed conditions are formulated as parameter- dependent linear matrix inequalities (LMIs) that have extra variables from Finsler's lemma and parameters belonging to the unit simplex. The fuzzy control law is written as a state feedback gain that is a homoge- neous polynomial of degree g, encompassing the parallel distributed compensator as a special case when g = 1. Algebraic properties of the system parameters and re- cent results of positive polynomials are used to construct LMI relaxations which, differently from most relaxations in the literature, asymptotically converge to a solution whenever such solution exists. Due to the degree of free- dom obtained with the extra variables, the conditions presented in the paper are an improvement over earlier results based on Pólya's theorem and can be viewed as an alternative to the use of techniques based on the relaxation of quadratic forms. 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