Las enteroparasitosis constituyen un importante problema de salud pública a nivel global, afectando principalmente a la población infantil de los países tropicales. Nuestro objetivo fue determinar la prevalencia de parásitos intestinales en niños de 2 a 5 años en 17 hogares comunitarios
In order to characterize native strains of Bacillus thuringiensis of the Colombian Caribbean with toxic effect against insect vectors, 28 samples of bacteria identified as B. thuringiensis were isolated from different soils and muds around the city of Valledupar. Using a biological test, five isolates of B. thuringiensis showed toxic effect against larvae of Aedes aegypti. PCR methods were used to detect cry1, cry2, cry4B, cry10 and cyt1 genes. Cry1 and cry2 genes were detected in 35.7% and 32.1% of the 28 isolates analyzed, respectively. Surprisingly, reduced lengths of cry4B gene segments were detected in 28.6% of B. thuringiensis samples. The presence of cry10 or cyt1 was not detected in any of the 28 samples of B. thuringiensis, despite the high sensitivity of the assays used. The results show that B. thuringiensis samples from the Colombian Caribbean have atypical characteristics compared to those of Latin America and elsewhere in the world, which is consistent with the idea that the geographic origin of B. thuringiensis samples is associated with their biological and genetic characteristics.
The objective of this study is proposing strategies to strengthen research competencies needed by engineers in training. An analytical, situation research was conducted in four Engineering programs from a public university located in the municipality of Valledupar, Cesar Department, in Colombia. A Likert-scale questionnaire of 50 items was designed; while a document, review was performed applying a matrix that systematized the information about the study plan. Ten experts and five experts respectively validated the content of the questionnaire and of the matrix. The interpretation of the data evidenced that the greatest deficiencies of students were methodological competencies such as “result analyses”. They lack foundations on the use and interpretation of data, which hinders data processing for disseminating results, conclusions and recommendations in research reports. It is therefore necessary to transform the curriculum, including better teaching, pedagogical and didactic methods.
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