Las TIC y el desarrollo cognitivo de los estudiantes de tecnologías: una valoración desde la perspectiva del docente

The teacher's perspective in the application of ICT to the student's cognitive processin technological higher education in Ecuador has been little studied. The objective ofthis work is to relate these two variables (bearing in mind their use, functionality andperception of them) with the student's cognitive activity. The methodology used wasqualitative, developed as a non-experimental, cross-sectional study and a populationsample at convenience, the expert judgment method was used to validate thedeveloped construct, in addition to assessing the objectivity and content of theinstrument, to for which the coincidence criterion was used, the reliability of thesurvey was measured by means of the Cronbach's Alpha statistic, the correlation ofthe variables was made by using the cross tables and the Chi-square statistic. It isconcluded that teachers who have more experience better adapt the use of ICT astools to achieve significant improvements in the cognitive process of students. Youngteachers (less than 3 years old) also adapt to the use of ICT in their daily work, whilethe stratum of seniority from 4 to 7 years is divided in opinion on this hypothesis.La perspectiva del docente en la aplicación de las TIC al proceso cognitivo del estudiante en la educación superior tecnológica del Ecuador ha sido poco estudiada. Como objetivo de este trabajo se busca relacionar estas dos variables (teniendo presente su uso, su funcionabilidad y la percepción sobre las mismas) con la actividad cognitiva del estudiante. La metodología empleada fue la cualitativa, desarrollado como un estudio no experimental, de corte transversal y una muestra poblacional a conveniencia, se empleó el método de juicio de expertos para validar el constructo desarrollado, además de valorar la objetividad y el contenido del instrumento, para lo cual se empleó el criterio de coincidencia, la fiabilidad de la encuesta se midió mediante el estadístico Alfa de Cronbach, la correlación de las variables se realizó mediante el uso de las tablas cruzadas y el estadístico Chicuadrado. Se concluye que los docentes que tienen más experiencia adaptan mejor el uso de las TIC como herramientas para lograr mejoras significativas en el proceso cognitivo de los estudiantes. Los jóvenes docentes (de menos de 3 años) también se adaptan al uso de las TIC en su trabajo diario, mientras el estrato de antigüedad de 4 a 7 años se halla dividido en opinión a esta hipótesis

TIC y el desarrollo cognitivo de los estudiantes de tecnologías: una valoración desde la perspectiva del estudiante

There are divided opinions regarding the influence of Information and Communication Technologies (ICT) on the cognitive activity of students, in addition to the fact that at the technological higher education level these studies are scarce in spite of multiple efforts made. The objective of this work is to contextualize the relationship between these two variables in the environment of the city of Guayaquil. The methodology used is qualitative, for which a research instrument (survey) was developed, to which the Content (Sufficiency, Coherence, Relevance and Clarity) and Objectivity (Specificity, Neutrality, Independence and Impersonality) are valued through expert judgment, measuring the Reliability of the different dimensions and the instrument in general with the Cronbach's Alpha statistic, making use of the contingency tables and measuring the possible relationship with the Chi-square statistic. The main conclusion of the study is that there is a significant relationship between ICT and cognitive development with the stratum year of study with 95% probability.Existen opiniones divididas en cuanto a la influencia de las Tecnologías de la Información y la Comunicación (TIC) en la actividad cognitiva de los estudiantes, se agrega a esto que a nivel de enseñanza superior tecnológica estos estudios son escasos a pesar de múltiples esfuerzos realizados. El objetivo de este trabajo es contextualizar la relación de estas dos variables en el entorno de la ciudad de Guayaquil. La metodología empleada es cualitativa, para lo cual se desarrolló un instrumento de investigación (encuesta) a la cual se le valora mediante el juicio de expertos el Contenido (Suficiencia, Coherencia, Relevancia y Claridad) y la Objetividad (Especificidad, Neutralidad, Independencia e Impersonalidad), midiendo la Fiabilidad de las diferentes dimensiones y el instrumento en general con el estadístico Alfa de Cronbach, haciendo uso de las tablas de contingencia y midiendo la posible relación con el estadístico Chi-cuadrado. La principal conclusión del estudio es que existe una relación significativa entre las TIC y el desarrollo cognitivo con el estrato año de estudio con 95% de probabilidad

Erratum: A Synergistic Association of ACE I/D and eNOS G894T Gene Variants with the Progression of Immunoglobulin A Nephropathy – A Pilot Study

<i>Background:</i> Individual variability in the natural history and response to therapy of immunoglobulin A nephropathy (IgAN) suggests a complex multifactorial pathogenesis. We investigated whether single nucleotide polymorphisms (SNPs) involved in the non-immunologic progression of renal disease are related with disease progression. <i>Methods:</i> This is a pilot historic cohort study of 64 Caucasian patients with biopsy-proven IgAN and a median follow-up of 70 months. Three SNPs of the renin-angiotensin system genes (angiotensin I converting enzyme insertion/deletion (ACE I/D), angiotensinogen (AGT) M235T, and angiotensin II type 1 receptor (AT₁R) 1166A/C), 2 of the endothelial nitric oxide synthase (eNOS), 4a/b and G894T, and 1 of the bradykinin 1 receptor, G–699C, were genotyped. The primary outcome was ‘kidney survival’ defined as a 30% decrease of baseline creatinine clearance; annualized decrease of glomerular filtration rate was also calculated. <i>Results:</i> Proteinuria, histological lesions, and mean arterial pressure were related to an unfavorable outcome. The simultaneous presence of the DD and GG variants of the ACE and eNOS genes was related to an unfavorable outcome as compared with other combinations [hazard ratio ranging from 4.7 (95% CI 1.52–14.33) to 8.4 (95% CI 2.45–29.10)] after controlling for proteinuria, mean arterial pressure and baseline histological lesions. <i>Conclusion:</i> This study suggests that in our population with IgAN, an interaction between ACE and eNOS polymorphisms may be a prognostic factor for renal function deterioration

Polymorphisms of Helicobacter pylori signaling pathway genes and gastric cancer risk in the European Prospective Investigation into Cancer-Eurgast cohort

Public Health and primary carePrevention, Population and Disease management (PrePoD

Polymorphisms of Helicobacter pylori signaling pathway genes and gastric cancer risk in the European Prospective Investigation into Cancer-Eurgast cohort.

Helicobacter pylori is a recognized causal factor of noncardia gastric cancer (GC). Lipopolysaccharide and peptidoglycan of this bacterium are recognized by CD14, TLR4 and NOD2 human proteins, while NFKB1 activates the transcription of pro-inflammatory cytokines to elicit an immune response. Single nucleotide polymorphisms (SNPs) in these genes have been associated with GC in different populations. We genotyped 30 SNPs of these genes, in 365 gastric adenocarcinomas and 1,284 matched controls from the European Prospective Investigation into Cancer cohort. The association with GC and its histological and anatomical subtypes was analyzed by logistic regression and corrected for multiple comparisons. Using a log-additive model, we found a significant association between SNPs in CD14, NOD2 and TLR4 with GC risk. However, after applying the multiple comparisons tests only the NOD2 region remained significant (p = 0.009). Analysis according to anatomical subtypes revealed NOD2 and NFKB1 SNPs associated with noncardia GC and CD14 SNPs associated with cardia GC, while analysis according to histological subtypes showed that CD14 was associated with intestinal but not diffuse GC. The multiple comparisons tests confirmed the association of NOD2 with noncardia GC (p = 0.0003) and CD14 with cardia GC (p = 0.01). Haplotype analysis was in agreement with single SNP results for NOD2 and CD14 genes. From these results, we conclude that genetic variation in NOD2 associates with noncardia GC while variation in CD14 is associated with cardia GC