Huellas en el proceso de la investigación: arquitectura cognitiva y afectiva

This presentation presents the university teaching work and comprehensive responsibility in the areas of teaching, research, extension and administration. I will expose the elements that have allowedcompliance with the investigative function. Some sayings are presented that qualify periods, processes and strategies for the development of research advice as graduation works, forming a trajectory of more than two decades, interspersing multiple experiences contributed by the thesis students that make up the cognitive affective architecture.As it is a dynamic activity, which is in evolution, new challenges and attitudes are presented for the realization of projections that allow the necessary vitality to remain in the footsteps of the Research process.Esta ponencia presenta la labor docente universitaria y la responsabilidad integral en las áreas de docencia, investigación, extensión y administración. Expondré los elementos que han permitido el cumplimiento con la función investigativa. Se presentan algunos refranes que matizan períodos, procesos y estrategias para el desarrollo de la asesoría de la investigación como trabajos de graduación, conformando una trayectoria de más de dos décadas, intercalando múltiples experiencias aportadas por los tesistas que conforman la arquitectura cognitiva afectiva.Como es una actividad dinámica, que está en evolución, se presentan los nuevos retos y las actitudes para la realización de proyecciones que permitan la vitalidad necesaria para la permanencia en las huellas en el proceso de la Investigación

LGR5 expression in oral epithelial dysplasia and oral squamous cell carcinoma

Objective. LGR5 is pivotal to oral cavity development and is implicated in epithelial malignancy whereby stimulation of LGR5 potentiates canonical Wnt signaling. This investigation tested our hypothesis of a correlation between LGR5 expression and the severity of oral epithelial dysplasia (OED) and oral squamous cell carcinoma (OSCC)

Gravitational sliding of the Mt. Etna massif along a sloping basement

Geological field evidence and laboratory modelling indicate that volcanoes constructed on slopes slide downhill. If this happens on an active volcano, then the movement will distort deformation data and thus potentially compromise interpretation. Our recent GPS measurements demonstrate that the entire edifice of Mt. Etna is sliding to the ESE, the overall direction of slope of its complex, rough sedimentary basement. We report methods of discriminating the sliding vector from other deformation processes and of measuring its velocity, which averaged 14 mm year−1 during four intervals between 2001 and 2012. Though sliding of one sector of a volcano due to flank instability is widespread and well-known, this is the first time basement sliding of an entire active volcano has been directly observed. This is important because the geological record shows that such sliding volcanoes are prone to devastating sector collapse on the downslope side, and whole volcano migration should be taken into account when assessing future collapse hazard. It is also important in eruption forecasting, as the sliding vector needs to be allowed for when interpreting deformation events that take place above the sliding basement within the superstructure of the active volcano, as might occur with dyke intrusion or inflation/deflation episodes

Calcium Carbonate Content of Karst Water in relation to Flow-through Time

MEASUREMENT of the primary porosity of massive limestone gives little indication of the rate of underground movement, which takes place largely along joints and bedding planes. There is also the possibility that these zones of water movement can exist as discrete systems and not in a uniformly permeable interconnected lattice1. Consequently, the permeability of a stratum of any fractured rock is difficult to estimate. The purpose of this communication is to report a finding which reinforces the hypothesis that the flow-through time of water in massive limestones might be inferred from seasonal changes in the solute concentration of the water2

Relationship between perineal body length and the occurrence of perineal lacerations in low risk primigravidae: a prospective observational study

Background: Birth canal lacerations include the injuries to cervix, vagina or perineum. Those of the perineum often follow vaginal delivery, and most are first-and second-degree lacerations. Third- and fourth- degree lacerations are considered Obstetrical anal sphincter injuries (OASIS), and their combined incidence varies from 0.5-5%. Risk factors for these more complex perineal injuries have been studied. One important risk factor includes the length of the perineal body which plays an important role in determining the degree of perineal tears. The aim of the study was to assess the relationship between perineal body length and other characteristics, and occurrence of perineal lacerations during delivery in low risk primigravidae in an institution which advocates routine episiotomy for primigravidae.Methods: This was a prospective observational study carried out in the department of obstetrics and gynaecology at AJ Institute of medical sciences among primigravidae who met the selection criteria and delivered between September 2021 and November 2021. A total of 80 women were recruited in this study. In this study, we measured the perineal body length at rest, while the patient was in a dorsal lithotomy position during 1st stage of labor, after delivery the new born’s weight and head circumference were noted. The duration of second stage was noted. These parameters were studied in relation to the occurrence of perineal lacerations and the data was analysed.Results: In the present study it was noted that 10 participants (12.50%) had 3rd degree perineal tears and none had 4th degree perineal tears. With the perineal body length cut off of 3 cm, the sensitivity to predict 3rd and 4th degree perineal tears were found to be 80%, specificity of 90%, positive predictive value of 53.33% and a negative predictive value of 96.92%. The study concluded that a shorter perineal body length, was associated with the occurrence of a 3rd or 4th degree tear, p value of less than 0.00001. The study also showed increased incidence of higher degree perineal tears with higher birth weight and head circumference of the newborn with p value of 0.015 and 0.02 respectively.Conclusions: It can be concluded that Perineal body length of less than 3 cm, higher birth weight and head circumference is associated with an increased incidence of higher order perineal tears. Perineal body length hence has a good ability to predict the occurrence of perineal tears

El sistema de labranza cambia la flora de malezas en maíz y frijol en relevo

14 p.De mayo a diciembre de 1990 se realizó en la Escuela Agrícola Panamericana, El Zamorano, Honduras, una evaluación de la comunidad de malezas del sistema de labranza convencional (LCO) y labranza cero (LCE). El objetivo fue determinar el efecto de la labranza sobre la composición de las comunidades de malezas. En ambos sistemas de labranza se sembró maíz (Zea mays L.) en la época de primera, y frijol (fhaseolus vulgaris L.) en la época de postrera. Se efectuaron conteos de malezas a los 45 y 150 días después de la siembra del maíz y a los 45 días después de la siembra del frijol. La diversidad de las comunidades de malezas se determinó mediante el índice de diversidad de Shannon y Wiener, Los índices de diversidad para cada fecha de muestreo fueron similares en LCO y LCE, pero en el análisis de las tres fechas combinadas fue mayor el índice de diversidad en LCE que en LCO. Además las malezas de hoja ancha fueron más diversas en LCE y las gramíneas en LCO. En LCE se encontraron 82 especies y en LCO 67 especies;'30 especies presentes en LCE no estaban en LCO, pero solamente 15 especies presentes en LCO no estaban en LCE. La labranza ha reducido el número de especies, pero ha aumentado algunas especies perennes que dependen de fragmentación de la planta para su diseminación y establecimiento