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Search Results: 1 - 10 of 1274 matches for " Tapia "
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Enfermedad cerebrovascular y trombofilia
Tapia,Jorge;
Revista chilena de neuro-psiquiatría , 2002, DOI: 10.4067/S0717-92272002000200004
Abstract: thrombophilia is a condition that must be considered in cases of ischemic strokes. although it causes only a small percentage of ischemic strokes, due to the high incidence of this disease, the number of patients with this condition becomes significant. most cases of thrombophilia have been described in the last twenty years, so it is possible that this condition explains a significant percentage of ischemic strokes of unknown cause. in patients under 50 years of age, 8 to 15% of the ischemic strokes are caused by thrombophilia, and it frequently coexists with other risk factors. of the different thrombophilias, hyperhomocysteinemia and antiphospholipid antibodies are linked with arterial and venous thrombosis. the hereditary thrombophilias (antithrombin iii, protein c and s deficiencies, factor 11 and v mutations) are linked mainly to cerebral venous thrombosis. symptoms, evaluation and treatment of the different thrombophilias are reviewed. it is suggested that thrombophilia should be considered in all cases of cerebral venous thrombosis and, in cases of arterial ischemic strokes, in those of unknown cause in patients under 50, with a history of phlebothrombosis, a family history of thrombosis, and/or when abnormalities are detected in routine coagulation studies.
Prevención secundaria de la trombosis en pacientes con síndrome antifosfolípido
Tapia,Jorge;
Revista chilena de neuro-psiquiatría , 2003, DOI: 10.4067/S0717-92272003000400007
Abstract: antiphospholipid syndrome is very heterogeneous and is therefore of interest to various medical specialties. the neurologist will see it in cases of ischemic cerebrovascular disease. retrospective clinical series suggest that treatment with high levels of anticoagulants (inr of 3 to 4.5), rather than at the usual levels (inr 2 to 3), decreases its recurrence. crowther et al. published in the new england journal of medicine (2003; 349: 1133-8), the first prospective, randomized study evaluating the effectiveness and safety of oral anticoagulation at the two levels mentioned to prevent the recurrence of cerebral thrombosis. the authors conclude that a high-level use of anticoagulants does not give better results than a moderate-level use (inr 2 to 3). these results are crucial for neurologists, since the most serious complication arising from the use of anticoagulants is intracranial hemorrhage, whose primary risk factors are the level of anticoagulation and previous infarction. this study allows us to manage ischemic events in antiphospholipid antibody syndrome, with usual levels of anticoagulation
Polynomial identities for hyper-matrices
Tapia,Victor;
Revista Colombiana de Matemáticas , 2005,
Abstract: we develop an algorithm to construct algebraic invariants for hyper-matrices. we then construct hyper-determinants and exhibit a generalization of the cayley-hamilton theorem for hyper-matrices.
Polynomial identities for hyper-matrices
Victor Tapia
Revista Colombiana de Matemáticas , 2005,
Abstract: We develop an algorithm to construct algebraic invariants for hyper-matrices. We then construct hyper-determinants and exhibit a generalization of the Cayley-Hamilton theorem for hyper-matrices. Se desarrolla un algoritmo para construir invariantes algebraicos para hiper-matrices. A continuación se construyen hiper-determinantes y se muestra una generalización del teorema de Cayley-Hamilton para hipermatrices.
Antifúngicos y resistencia
Cecilia Tapia
Revista chilena de infectología , 2012,
Abstract:
Diagnóstico rápido mediante Luminex de virus respiratorios versus RPC en tiempo real Comparison of the Luminex respiratory virus panel fast assay with in-house-real-time-PCR for respiratory infection diagnosis
Lorena Tapia
Revista chilena de infectología , 2010,
Abstract:
SYMMETRY AS CONCEPTUAL METAPHOR IN WALKER'S THE COLOR PURPLE
Elena Tapia
International Journal of English Studies (IJES) , 2003, DOI: 10.6018/ijes.3.1.48461
Abstract: The author analyzes three types of the conceptual metaphor of embodied symmetry in Alice Walker's novel, The color purple (1982). These metaphorical projections, perceived as equilibrium and its breakage in abstract phenomena, enable readers to reexamine issues of race, non-traditional families, and gender roles. The dis/equilibrium emerges in the novel's epistolary structure. Biological equilibrium breaks in incidents of rape and incest. Walker creates characters in the novel through default-concept opposites of black/white, submissive/dominant, male/female and others. These contraries foreground issues of race and gender. The novel's asymmetries engage readers, leading them to rethink individual character histories and motives. The removal of objects (e.g., rape, mothers deprived of children) suggests conceptual asymmetry and alerts readers to parallel themes of sexual and racial oppression. Subjugation sometimes subtle, sometimes blatant- manifests in simple oppositions. In epistemological terms, readers seek causal explanations for the asymmetries of the narrative, interpreting each to recover its history.
Enfermedad cerebrovascular y trombofilia Cerebrovascular Disease and Thrombophilia
Jorge Tapia
Revista Chilena de Neuro-Psiquiatría , 2002,
Abstract: La trombofilia es una condición que se debe tener presente en las enfermedades cerebrovasculares (ECV) isquémicas. Si bien se considera que es la causa de un bajo porcentaje de ellas, dada la alta incidencia de las ECV isquémicas, el número de pacientes con esta condición pasa a ser significativo. La mayoría de las trombofilias ha sido descrita en los últimos 20 a os, por lo que es posible que esta condición explique un porcentaje importante de las ECV isquémicas sin causa aparente. Un 8 a 15% de las ECV isquémicas bajo los 50 a os son secundarias a trombofilia. Con frecuencia la trombofilia coexiste con otro factor de riesgo de ECV isquémica. De las trombofilias, la hiperhomocisteinemia y la presencia de anticuerpos antifosfolípidos se relaciona con obstrucción de vasos encefálicos tanto arteriales como venosos. En cambio, las trombofilias hereditarias (deficiencia de antitrombina III, proteína C y S, mutación del factor II y V) se relacionan más bien con trombosis de venas encefálicas. Se revisan los diferentes tipos de trombofilia, su cuadro clínico, forma de estudio y tratamiento. Se recomienda investigar trombofilia en todos los casos de trombosis venosa encefálica y, en aquellos por obstrucción arterial encefálica de causa desconocida, en los pacientes menores de 50 a os, en los con historia personal de flebotrombosis o familiar de trombosis, y cuando se detectan anormalidades en las pruebas rutinarias de coagulación Thrombophilia is a condition that must be considered in cases of ischemic strokes. Although it causes only a small percentage of ischemic strokes, due to the high incidence of this disease, the number of patients with this condition becomes significant. Most cases of thrombophilia have been described in the last twenty years, so it is possible that this condition explains a significant percentage of ischemic strokes of unknown cause. In patients under 50 years of age, 8 to 15% of the ischemic strokes are caused by thrombophilia, and it frequently coexists with other risk factors. Of the different thrombophilias, hyperhomocysteinemia and antiphospholipid antibodies are linked with arterial and venous thrombosis. The hereditary thrombophilias (antithrombin III, protein C and S deficiencies, factor 11 and V mutations) are linked mainly to cerebral venous thrombosis. Symptoms, evaluation and treatment of the different thrombophilias are reviewed. It is suggested that thrombophilia should be considered in all cases of cerebral venous thrombosis and, in cases of arterial ischemic strokes, in those of unknown cause in patients under 50, with
Prevención secundaria de la trombosis en pacientes con síndrome antifosfolípido Secondary prevention of thrombosis in antiphospholipid syndrome patients
Jorge Tapia
Revista Chilena de Neuro-Psiquiatría , 2003,
Abstract: Antiphospholipid syndrome is very heterogeneous and is therefore of interest to various medical specialties. The neurologist will see it in cases of ischemic cerebrovascular disease. Retrospective clinical series suggest that treatment with high levels of anticoagulants (INR of 3 to 4.5), rather than at the usual levels (INR 2 to 3), decreases its recurrence. Crowther et al. published in the New England Journal of Medicine (2003; 349: 1133-8), the first prospective, randomized study evaluating the effectiveness and safety of oral anticoagulation at the two levels mentioned to prevent the recurrence of cerebral thrombosis. The authors conclude that a high-level use of anticoagulants does not give better results than a moderate-level use (INR 2 to 3). These results are crucial for neurologists, since the most serious complication arising from the use of anticoagulants is intracranial hemorrhage, whose primary risk factors are the level of anticoagulation and previous infarction. This study allows us to manage ischemic events in antiphospholipid antibody syndrome, with usual levels of anticoagulation
Scedosporium/Pseudallescheria
Cecilia Tapia
Revista chilena de infectología , 2012,
Abstract:
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