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Genetic risk factors for ischaemic stroke and its subtypes (the METASTROKE coll...
Traylor, M.; Farrall, M.; Holliday, E.G.; Sudlow, C.; Hopewell, J.C.; Cheng, Y.C.; Fornage, M.; Ikram, M.A.; Malik, R.; Bevan, S.; Thorsteinsdottir, U.Various genome-wide association studies (GWAS) have been done in ischaemic stroke, identifying a few loci associated with the disease, but sample sizes have been 3500 cases or less. We established the METASTROKE collaboration with the aim of validating associations from previous GWAS and identifying novel genetic associations through meta-analysis of GWAS datasets for ischaemic stroke and its subtypes.
A multicenter validation of an endoscopic classification with narrow band imagi...
Pimentel-Nunes, P; Dinis-Ribeiro, M; Soares, JB; Marcos-Pinto, R; Santos, C; Rolanda, C; Bastos, RP; Areia, M; Afonso, L; Bergman, J; Sharma, PBACKGROUND AND STUDY AIM: The reliability and external validity of narrow band imaging (NBI) in the stomach have not been described consistently. The aim of the current study was to describe and estimate the accuracy and reliability of a simplified classification system for NBI in the diagnosis of gastric lesions. METHODS: Consecutive patients undergoing NBI endoscopy at two reference centers (n=85, 33% with dy...
A multicenter validation of an endoscopic classification with narrow band imagi...
Pimentel-Nunes, P; Dinis-Ribeiro, M; Soares, JB; Marcos-Pinto, R; Santos, C; Rolanda, C; Bastos, RP; Areia, M; Afonso, L; Bergman, J; Sharma, PBACKGROUND AND STUDY AIM: The reliability and external validity of narrow band imaging (NBI) in the stomach have not been described consistently. The aim of the current study was to describe and estimate the accuracy and reliability of a simplified classification system for NBI in the diagnosis of gastric lesions. METHODS: Consecutive patients undergoing NBI endoscopy at two reference centers (n=85, 33% with dy...
Controle de percolação em pequenos reservatórios.
LOPES, P. R. C.; SILVA, A. de S.; SHARMA, P. N.Uns dos principais fatores que contribuem para a baixa eficiencia de utilizacao de agua em pequenos reservatorios na regiao semi-arida sao as perdas por percolacao e por evaporacao. Desta forma, torna-se de fundamental importancia o desenvolvimento e utilizacao de tecnicas apropriadas para o controle destas perdas, principalmente em solos que apresentam baixo conteudo de argila. A percolacao depende muito das p...
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