In order to establish the spectrum of β-thalassemia (β-thal) mutations in the Venezuelan population for the first time, 127 unrelated subjects either with a suspicion of β-thal trait or with a clinically recognized β-thal syndrome of different degrees of severity, were studied. DNA from these subjects was analyzed by a polymerase chain reaction (PCR)-based reverse dot-blot method or amplification refractory mutation system (ARMS). Prototype β-globin gene sequencing of relevant DNA was performed to confirm the mutations. Fifteen different mutations were identified accounting for 92.0% of the mutant alleles explored, revealing a significant genetic heterogeneity at the β-globin gene locus in this population. The most frequent mutations were codon 39 (C >T) 34.1%, IVS-I-1 (G >A) 11.1%, IVS-I-6 (T > C) 6.6%, IVS-I-110 (G >A) 6.6%, IVS-II-849 (A >G) 6.6%, -88 (C >T) 6.0%, -29 (A >G) 5.2%, followed by the less common IVS-I-5 (G >A) 3.7%, the 1,393 bp deletion 3.0%, IVS-II-1 (G >A) 3.0%, -86 (C >G) 2.2%, IVS-II-1 (G >T) 1.5%, codons 41/42 (-TCTT) 1.5%, IVS-II-745 (C >G) 0.7% and deletional δβ-thal 0.7%. Overall, these data demonstrate that the major sources of β-thal alleles in Venezuela, as expected, are of Mediterranean and African origins. This is the first large study defining the molecular spectrum of β-thal in the highly admixed population of Venezuela and lays the foundation for genetic counseling as well as implementing comprehensive clinical care programs. Diversity of haplotypes associated with some of the β-thal mutations can be explained by in situ recombination events in Venezuela.
Pensar las matemáticas escolares con la noción foucauldiana de gobernamentalidad permite explorar el funcionamiento del currículo como tecnología de gobierno. Así, es posible entender cómo las prácticas y discursos de la educación matemática fabrican al sujeto racional, objetivo, universal que encarna al ciudadano cosmopolita Moderno. Con el estudio genealógico de las matemáticas escolares en el proyecto colonizador español en Colombia, y sus posteriores mutaciones en la consolidación del estado nación en el siglo 20, se muestra cómo el currículo de matemáticas efectúa la entrada de Colombia en el camino del desarrollo y cómo inscribe la norma del pensamiento y maneras de ser Modernas en los estudiantes colombianos. Este doble proceso mantiene la exclusión de subjetividades que no se alinean con el ser Moderno. El análisis cuestiona la visión ingenua del empoderamiento de todos que se le atribuyen a las matemáticas escolares.
On the grounds of our work as researchers, teacher educators and teachers engaging with a socio-political approach in mathematics education in Colombia, we propose to understand democracy in terms of the possibility of constructing a social subjectivity for the dignity of being. We address the dilemma of how the historical insertion of school mathematics in relation to the Colonial project of assimilation of Latin American indigenous peoples into the episteme of the Enlightenment and Modernity is in conflict with the possibility of the promotion of a social subjectivity in mathematics classrooms. We illustrate a pedagogical possibility to move towards a mathematics education for social subjectivity with our work in reassembling the notion of geometrical space in the Colombian secondary school mathematics curriculum with notions of space from critical geography and the problem of territorialisation, and Latin American epistemology with the notion of intimate space as an important element of social subjectivity.
Essentially, the treatment with PLc, despite the duration produces a modification in hemorheological parameters approaching the values of the experimental group with standard diet. Plasma levels of Cho, LDL-Cho and TG represent selected markers to evaluate the effect of enriched extract from Ligaria cuneifolia. Further work is necessary to better evaluate the mechanisms by which PLc induces modifications in the lipids metabolism.
Objetivo: Caracterizar la formación deportiva de participantes en los IV Juegos Deportivos EscolaresCentroamericanos y del Caribe, Armenia, 2013. Materiales y métodos: Estudio cuantitativo, prospectivo,con alcance descriptivo y de corte transversal. De un universo de 683 participantes, fue seleccionadaintencionalmente una muestra no probabilística de 233 deportistas (102 hombres y 131 mujeres),entre 15 y 17 años de edad, pertenecientes a nueve delegaciones participantes, quienes respondieronuna encuesta que indagaba sobre la formación deportiva. Resultados: Los deportistas encuestadosafirman que la organización del deporte en la escuela se da en clubes deportivos, los deportistaspertenecen a entidades deportivas independientes a su institución educativa y dichas entidades noposeen convenios con las instituciones educativas; el promedio de edad de inicio es 9,57 años, enentidades deportivas independientes de su institución; al 52,3 % de los deportistas se les realizaronpruebas para identificar talento; y de ellas las más utilizadas fueron las pruebas físicas. Dentro delcontrol se encuentra que el 89,2 % realizó pruebas permanentemente y las más utilizadas son las físicas,se identifica que los deportistas tienen un bagaje en competencias internacionales y un promediode 7 competencias por año; finalmente, se establece que el principal agente motivador son los padres.
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